Dissertations / Theses on the topic 'Rehabilitation or conservation of fresh'
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Campbell, Maria Shauna. "Fisheries, marine conservation, marine renewable energy and displacement : a fresh approach." Thesis, University of Plymouth, 2017. http://hdl.handle.net/10026.1/8336.
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Fishers are among the biggest commercial resource users in the marine environment. In order to meet international, national and local policies, the UK has to designate a suite of marine protected areas (MPAs) and reach marine renewable energy (MRE) targets. Inevitably, there will be conflict between these two industries and marine conservation. This study uses a multi-disciplinary approach to examine evaluate the suitability of various sources of data, which could be used to detect, assess, and ultimately predict, fishing effort displacement within the different sectors of the > 15 m fleet in the South West of the UK. Gear-specific Vessel Monitoring System (VMS) data from 2005-2008 was used to assess potential effort displacement due to Haig Fras, a proposed MPA and Wave Hub, a marine renewable energy installation (MREI). The spatial distribution of fishing activity was highly heterogeneous and distinct areas of intense fishing could be identified for all gear-types. A closure of Haig Fras would have the greatest impact on gillnetters. Scallop dredgers also occasionally use the area. The current closure at Wave Hub has the greatest impact on potters and whelkers whose geographic specialisation is most pronounced and who use the area extensively. Longliners also use the area disproportionately would be affected. A simple index of variability was developed in order to determine baselines and two other sources of data were used. High resolution seabed data and low resolution catch data. A semi structured interview was conducted with forty fishers to elicit further information on the challenges, barriers to progress and priority issues in relation to MRE those fishers face. The theme of discontent with the consultation process scored highly throughout. Fishers’ Knowledge (FK) another source of data also scored highly, although further work must be carried out to identify what aspects of this data are useful in assessment of fishing effort displacement.
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Pospisil, Heather. "Perspectives on wildlife from the practice of wildlife rehabilitation." Thesis, California Institute of Integral Studies, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1568352.
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Current research about wildlife has tended to emphasize the contributions of scientific perspectives. This thesis argues that the practice of wildlife rehabilitation (WR) also offers significant information to academic discourse. The goals of my study were to explore and describe the different perspectives and knowledges generated about wildlife through the practice of wildlife rehabilitation and the rehabilitators' relationships with their wild animal patients, through the use of qualitative methods including semi-structured interviews and autoethnography. I interviewed seven WR professionals about their nonhuman animal patients, education animals, and human staff and volunteers. The autoethnographic information used in this study was gathered from my own experience as a wildlife rehabilitator.
Five key themes emerged from my research. 1) The altruistic roles taken on by wildlife rehabilitators (both caregiving and training roles) improve communication with other animal individuals. 2) The subjective experience plays critical roles, both positive and negative, in the practice of wildlife rehabilitation and the ability to understand wildlife. 3) The sense of obligation and responsibility to address anthropogenic injuries to other animals leads humans to become wildlife rehabilitators. 4) Wildlife experience with, and education about, other animal species are important factors in forming an appreciation for wildlife. 5) The practice of wildlife rehabilitation generates significant information about wildlife and medicine that is useful to discourse about wildlife.
This study will be relevant to professionals from other fields that work with wildlife and nonhuman animals: conservation, wildlife management, animal communication, and to the new field of trans-species psychology, among others. Captive environments and enrichment for education animals at WR centers could be used as models for captive animals in other industries: entertainment (zoos and circuses), as well as laboratory and research institutions. Finally, this theoretical analysis of WR, placed in the context of power relations, offers a significant contribution to human-centered studies such as those of human ethics (biomedical, especially, and around human test subjects), medicine and public health, and studies of social justice.
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Ha, Daniel Stuart. "Ecology and conservation of Virginia shark species: Analysis of thirty years of Virginia long-line shark census data, 1974--2004." W&M ScholarWorks, 2006. https://scholarworks.wm.edu/etd/1539616679.
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Sharks of the Atlantic coast of the United States have suffered increased fishing pressure in last three decades. Commercial and recreational catches jumped in the mid to late 1980's, leading to regulation by the National Marine Fisheries Service in the early 1990's. The Virginia Institute of Marine Sciences' shark long-line survey, begun in 1974, and continuing to the present day, is thus well positioned to look at the effects of this fishing mortality on sharks. Using GAM modelling, six of ten shark species analyzed, including the most common species, Carcharhinus plumbeus, suffered declines of from 98-99% of early abundances in the survey. Only two species showed no significant trends, and only one (C. obscurus) showed signs of recovery. Analysis of size changes showed that both C. plumbeus and C. obscurus have suffered declines in both mean and variance of their size distribution since 1974. Analyses of mass changes showed that five of thirteen species have shown biologically significant declines in mass per shark since 1974. Six of the remaining eight showed no trend in mass per shark. Habitat analyses showed that few species showed effects of climate scale variables such as the North Atlantic Oscillation index, Chesapeake Bay discharge, or the Palmer Drought Index. Many species showed significant changes in patterns in abundance with local environmental variables, such as temperature, salinity, and water depth. These patterns, when combined, revealed several groupings of species, including deep-water species, Bay-abundant species, and near-shore species. Another group consisted of species that occur in this area only as they move north and south en route to more northerly areas for summer months. One group was made up of two species (S. acanthias and M. canis) that occurred almost exclusively in cold water (April and May). Analysis of New Jersey long-line data from 1961-62 with a resample of many of the same sites revealed that abundances off New Jersey show a trend in both mass and abundance similar to that found in the VIMS survey data. Overall, this study demonstrated many trends in shark distribution and ecology not previously shown in any way other than anecdotally.
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Myatt, Taylor Scott. "Preservation, Education, and Rehabilitation: A Wildlife Conservation Internship at Brukner Nature Center." Miami University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=miami1493336910350278.
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Rook, Megan Ann. "Mortality of Diamondback Terrapins in Blue Crab Traps: Population Changes and Conservation in Southeastern Virginia." W&M ScholarWorks, 2009. https://scholarworks.wm.edu/etd/1539626881.
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Phillips, Mary L. "Certified rehabilitation: a tool for the architect." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/51895.
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This thesis delineates how the process of "certified rehabilitation" can be applied by the architect to acquire tax savings and quality control on the rehabilitation of a historic building. Theory and principle are applied to a specific case. To strengthen the architect's and the planner's awareness of governmental guidelines, approaches are suggested to benefit the client and improve the potential for "adaptive reuse" with emphasis on lighting. This thesis shows, by example, how economics and building methods can enhance Historic Preservation.Master of Architecture
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Freedman, Matthew Ryan. "Distribution and Impacts of Invasive Bivalve Corbicula fluminea in Tidal Freshwater York River Tributaries." W&M ScholarWorks, 2013. https://scholarworks.wm.edu/etd/1539617940.
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The Asian clam, Corbicula fluminea, is one of the most invasive bivalves in the world but there is limited research on its presence in tidal freshwater systems. Despite its introduction into Chesapeake Bay tributaries in the 1970s, the initial colonization and subsequent development of populations of C. fluminea in the Mattaponi and Pamunkey sub-tributaries of the York River, Virginia, is mostly undocumented. This study assessed the spatial distribution and population structure of C. fluminea in tidal freshwater sections of these rivers (~45km) with benthic surveys during summer 2011 – 2012. Benthic grabs (2.4L, 0.023m2) taken at 40 sites in each river were analyzed for clam abundance and size. In addition, relationships between abiotic factors and clam distribution within each river were evaluated using Akaike’s Information Criterion (AIC) to compare a set of generalized linear models. C. fluminea was present at the majority of sites in both rivers during both years, with mean densities (m-2) during 2011 and 2012 of 660 and 410 for Mattaponi River; 1,451 and 834 for Pamunkey River. Populations were dominated by > 90% juvenile clams (< 6mm shell length), which is common for C. fluminea populations during recruitment periods. Both rivers had lower abundance during 2012, suggesting that C. fluminea is actively reproducing but not necessarily accumulating in the system. High juvenile and adult mortality are characteristic of C. fluminea populations. Compared to other invaded systems, C. fluminea in Mattaponi and Pamunkey Rivers is a low-to-moderate level invasion based on clam density. Using AIC analysis, the bestsupported models included factors of distance upriver (km), % sand, depth (m), and year. Distance and % sand showed positive relationships with C. fluminea abundance and had significant parameter estimates in all models (" = 0.05). Spatial analysis in GIS showed 3 that C. fluminea was widely distributed throughout the rivers but achieved higher densities further upriver and in sandier habitats. Despite these trends, Corbicula densities were highly variable, highlighting eurytopic habitat preferences of this species that have led to its successful invasion of tidal freshwater habitats. Populations may also be controlled by the high degree of physical disturbance in tidal freshwater systems and predation by fish and waterfowl.
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Kerstetter, David. "Use of Pop-Up Satellite Tag Technology to Estimate Survival of Blue Marlin (Makaira nigricans) Released from Pelagic Longline Gear." W&M ScholarWorks, 2001. https://scholarworks.wm.edu/etd/1539617772.
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Mothershead, Robert F. "Contaminant Accumulation in Hard and Soft Shell Blue Crabs from an Urban Subestuary." W&M ScholarWorks, 1991. https://scholarworks.wm.edu/etd/1539617623.
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Muscle and hepatopancreas of blue crabs (Callinectes sapidus), collected from the Elizabeth River, Virginia, contained residues of polycyclic aromatic hydrocarbon (PAHs}, polychlorinated biphenyls (PCBs) and organochlorine pesticides. Analytical procedures involved dichloromethane extraction of lyophilized tissue, followed by molecular size and polarity-based purification of the extract. capillary gas chromatography with flame ionization detection and electrolytic conductivity detection was used for quantitation and tentative identification of the xenobiotic compounds. Mass spectrometry was used for confirmation of these identities. Contaminant concentrations were greater in hepatopancreas than in muscle in crabs from every site examined. Hepatopancreas PAH burdens were as high as 11 mg/kg dry weight, with an accompanying muscle level of 3.1 mg/kg. The PAHs present consisted mainly of alkylated low molecular weight compounds (e.g., acenaphthenes and naphthalenes), except near a creosote-impacted site. At the latter location, unsubstituted, higher molecular weight PAHs (e.g., pyrene and chrysene) dominated. Organochlorines, which included PCBs, 4,4'-DDE, and chlordane were found in lower concentrations.
The effect of molting on xenobiotic accumulation in Crustacea was also examined. Molting is essential for crustacean growth and is integral to the reproductive process in some species. Molting and intermolt blue crabs were maintained in cages at the creosoted-impacted Elizabeth River site mentioned above. PAH concentration in muscle and hepatopancreas was measured for both molt groups. Newly molted blue crabs possessed statistically higher tissue burdens than intermolt crabs of three unsubstituted PAHs (cyclopenta(def)phenanthrene, fluoranthene, and pyrene) characteristic of the creosote-contaminated exposure site. Mean concentration of the three PAHs in hepatopancreas was 9560 μg/kg in newly molted crabs and 3360 μg/kg in intermolt crabs. Mean PAH concentration in muscle was 1380 μg/kg in new-molts and 498 μg/kg in intermolts. The elevated tissue burdens may be due to increased water uptake and shell permeability at ecdysis or decreased metabolism of PAH during the molt process. Newly molted blue crabs are regarded as a seafood delicacy and tissue burdens of xenobiotics, such as PAHs, may be of human health concern.
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Ayala, Karen M. "Hacienda La Monserrate : a historic structure report and rehabilitation recommendations." Virtual Press, 1994. http://liblink.bsu.edu/uhtbin/catkey/902473.
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For almost 450 years the island of Puerto Rico has had an agricultural economy based on the cultivation and production of sugar. Sugar plantations became small communities within towns with distinctive structures and buildings. When large scale commercial sugar production ceased, plantation houses were abandoned and have deteriorated to the point of collapse. A small number of plantation houses are still standing in defiance of progress and their own deterioration.Plantation houses represent part of Puerto Rico's economic and social history and deserve to be preserved. As a result of their architectural significance and uncertain future, plantation houses throughout the Island, should be documented.The focus of this Creative Project is the documentation of the main house in La Monserrate sugar plantation and present recommendations for its rehabilitation and adaptive reuse. This plantation house is located in Manati, a town along the north coast of Puerto Rico. The document will cover a variety of subjects all related with the history of the development of the sugar industry and its influence in Puerto Rico's architecture. The document includes both, a comprehensive analysis of the house and preliminary recommendations for its future adaptive reuse.It is the author's hope that this document will increase public awareness about the importance of preserving this particular building as well as some of the cultural and economic advantages of historic preservation. The community needs to understand and appreciate their built heritage and restoring and rehabilitating the main house in Hacienda La Monserrate can be the first step to achieve it.Department of Architecture
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Gary, Rodney D. "Incorporating new technologies in the rehabilitation of historic buildings." Thesis, Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/22398.
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Cox, Kyle. "Conserving the Urban Environment: Hough Residents, Riots, and Rehabilitation, 1960-1980." Case Western Reserve University School of Graduate Studies / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1428054448.
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Legnér, Mattias. "Historic rehabilitation of urban spaces in Eastern Europe : plans for the reuse of a public building in Disna, Belarus." Högskolan på Gotland, Institutionen för kultur, energi och miljö, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hgo:diva-828.
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Legnér, Mattias. "Redevelopment through rehabilitation : The role of historic preservation in revitalizing deindustrialized cities: Lessons from the United States and Sweden." Högskolan på Gotland, Institutionen för kultur, energi och miljö, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hgo:diva-831.
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The rehabilitation of urban environments by giving old buildings new functions is an old practice, but policies meant for encouraging rehabilitation trace their American origins back to the 1960s with the growing criticism of urban renewal plans and the rise of historic preservation values. In the U.S., historic rehabilitation has proven to be a way of revitalizing cities which have faced deindustrialization, disinvestment and shrinking tax revenues. Built heritage is especially vulnerable in these places because of the willingness of city governors to attract investment and development at any costs. This willingness of local authorities to let developers run amock in their cities might prove to be a bad strategy in the long run, even though it can bring capital back into the city fairly quick. In a climate of toughening regional and global competition over tourism and the location of business headquarters, the images and cultures of cities have gained an increasing importance. Careful and well planned redevelopment of the built environment has an crucial role to play in the re-imaging of industrial cities. Not including the new jobs and other direct economic benefits of rehabilitation, historic structures carry a large part of a city’s character and identity, ingredients desperately sought after when cities need to get an edge and show why they are worth visiting or relocating to. This paper has argued that successful rehabilitation not only makes use of the historic built environment, but also that it has the potential of renegotiating and redefining the history of a city (or at least parts of it). In this way rehabilitation can prove to have great public benefits in making new spaces available for public access and civic intercourse. City governors should not just look at quick economic benefits. A city where the urban fabric has been destroyed through profit-oriented and shortsighted development runs the risk of having gone into a dead end. A more prosperous future for the population, not just the developers, might instead be found in democratically planned and financially scaled down solutions in which the built environment is systematically reused. American developers and cities have proven to be successful in making rehabilitation financially successful for the property owner. Considerably less interest have been shown for the public benefits of these projects, often making them into isolated enclaves lacking legitimacy among the public and causing conflicts within the neighborhood. Developers are repeatedly accused of gentrification, displacement and for ignoring the public need for affordable housing. Despite the unclear public benefits these projects are often heavily subsidized on federal, state as well as city level. After having dealt with the growing general importance of cultural policies for cities, U.S. policies on historic rehabilitation are discussed and two large redevelopment projects in Baltimore and Durham presented. After that a Swedish case of inner city redevelopment through rehabilitation is presented, showing a contrast in both national policy and local practice. Swedish redevelopment has not been subsidized in the same generous manner as in many states of the U.S., and it has been more integrated into urban planning. In the Swedish case the city governors were not interested in preserving the built environment, but due to disinvestment new construction did not occur. In the 1970s, there was a consensus between leading politicians and local developers that preservation values would not be allowed to stand in the way of development. Until the early 1980s there was also a lack of local public support for preserving industrial buildings, as in many deindustrialized cities where industry has come to symbolize unemployment and stigmatization. The unique environment of the Industrial Landscape was finally preserved not through the actions of local government, but of architectural historians and curators representing government authority. Development of the historic district needed close monitoring at a national level since the developer had a very strong influence on local politics. In Swedish preservation policies local authorities have the possibility to landmark and protect environments much in the same way as in many U.S. cities with preservation commissions. If an urban plan seems to interfer with preservation goals, however, national authorities have the possibility of intervening in a similar way to that of state preservation offices in the U.S. In the 1990s development within the Industrial Landscape went into a more mature and democratically influenced phase in which goals of public access and attractiveness became increasingly important. The lesson from Sweden shows that redevelopment through rehabilitation can be affordable and that it does not need a whole lot of public subsidy. It also shows that the historical and aesthetic values need to be stressed in order for the development project to win the public support that is needed in a democratically lead community. The political leadership in this city, paralyzed by economic crisis, was heavily influnced by the developer, who was a large property owner in the city. But through monitoring, academic research and participation in public debate by preservation professionals, the table was turned and the preservation of the Industrial Landscape gained more and more support from the city in the 1980s. Instead of giving subsidies to the developer, the government located a national museum of labor to the district at a time in which economic support was badly needed. This showed that successful rehabilitation was possible here and that it would have considerable public benefits. Finally, it is also argued that the historical experiences of the national preservation movements have influenced the way rehabilitation is carried out. In Sweden, historic preservation has largely been a task for national government, whereas in the U.S. it has to a large extent been organized through national and local non-profit organizations buying up properties and lobbying for preservation causes. In this way historic preservation has been more integrated in Swedish urban politics, whereas in the U.S. preservationists have been identified as just one interest among others.
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Louw, Merika. "Propagation and stress physiology of selected Subtropical Thicket species : towards increasing biodiversity at rehabilitation sites." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1021115.
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Sundays Thicket and Spekboomveld vegetation in the Eastern Cape have experienced intensive and extensive degradation due to over-browsing by domestic stock. The Subtropical Thicket Restoration Project aims to take advantage of the high carbon sequestration potential of Portulacaria afra (Spekboom) and other Thicket species, to rehabilitate degraded Thicket by restoring biodiversity and ecosystem services, create job opportunities and socio-economic upliftment in local communities, and promote the trade of carbon credits generated by planting and „farming‟ with Spekboom truncheons, rather than domestic stock. Plant material (seeds and length of stem) was sourced from the farm Krompoort, outside Uitenhage in the Eastern Cape. The effectiveness of four different rooting media i.e. plain pool filter sand and 1:1 mixtures of pool filter sand with perlite, potting soil and Thicket soil, on the rooting of ten Thicket species, were tested. Species with the greatest percentage strike and mean root length on stem cuttings were succulent species, Crassula ovata (84 percent strike) and Portulacaria afra (97 percent), as was expected. The application of rooting hormone Seradix© No. 3 did not significantly promote cutting strike or increase mean root length in C. ovata and P. afra. Woody canopy shrub species with the greatest cutting strike and mean root length, overall, were Rhigozum obovatum (24 percent), Lycium cinereum and L. oxycarpum (21 percent), and Searsia longispina (19 percent). These species, as well as Grewia robusta (4 percent), are considered „easy-to-root‟ species, or of sufficient functional value in terms of their spinescence, flower and fruit production, and soil-binding capabilities. Very low percentage strike (<1 percent) and mean root length were achieved in Azima tetracantha, Carissa bispinosa and Gymnosporia polyacantha subsp. polyacantha. These species are considered unsuitable for propagation for rehabilitation purposes. Crassula ovata, L. cinereum, L. oxycarpum, P. afra and S. longispina cuttings produced longer roots when planted in Thicket soil, the same having been found in R. obovatum cuttings planted in perlite. Thicket soil was, therefore, best at promoting cutting strike and root growth in „easy-to-root‟ species. Plain pool filter sand was the only medium in which A. tetracantha, C. bispinosa and G. robusta, cuttings rooted, and perlite the only medium in which G. polyacantha subsp. polyacantha cuttings rooted. Potting soil did not promote significant cutting strike or root growth in any of the species tested. Physiological variables i.e. photosynthetic efficiency (chlorophyll a fluorescence, Fv/Fm) and stomatal conductance (mmol H2O m-2 s-1) were measured for ten Thicket species, including Portulacaria afra. Control plants were watered well once a week, and treatment plants were dried out for 30 days, rewatered on the 30th day and their recovery from drought stress monitored for a further 17 days. Species that responded poorly to drought stress were Gymnosporia buxifolia and Putterlickia pyracantha. In addition to Portulacaria afra, species that showed the fastest recovery and resprout after rewatering, were: Crassula ovata, Ehretia rigida, Grewia robusta, Lycium ferocissimum, Rhigozum obovatum and Searsia longispina. These species produced the smallest decline in volumetric moisture content of soil, and had the lowest decline in photosynthetic efficiency and stomatal conductance during simulated drought. Unlike C. ovata and P. afra, which are CAM or C3-CAM switching species, mortality of transplants will most likely be high, if not total, during transplantation, as this study was done at lower light and temperature, and higher humidity levels than experienced at rehabilitation sites. This study has shown that the reintroduction of propagated woody canopy shrubs and trees into degraded Thicket sites does not appear to be a practical or economical method of actively restoring biodiversity to rehabilitation sites. As woody climax species have been shown to return to sites planted with Spekboom truncheons through „natural regeneration‟ within approximately 50 years, future research efforts should focus on optimising restoration site selection and planting techniques in order to maximize carbon sequestration potential of planted truncheons, which will, in the long term, result in an environment that can support regeneration of the biodiversity to something resembling intact Thicket.
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Stieg, Elizabeth A. "Watershed reconstruction during the rehabilitation of surface mined disturbances." Thesis, Kansas State University, 1985. http://hdl.handle.net/2097/14007.
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Lin, Fengwen, and 林丰雯. "News media interpretation on heritage rehabilitation and public perception : a case study of Wing Lee Street." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/208080.
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The conservation approach of “Heritage Rehabilitation,” as a means to give new life to deteriorated heritage buildings, seems to receive criticism from people of Hong Kong in recent years. While the government tries to promote this conservation treatment to strike a balance between sustainable development and heritage conservation, the news media appears to report related stories leaning to one side of public opinion: the side of conservationists, carrying a sense of criticism on government’s work to rehabilitate historic buildings.
Studies in recent years indicated different preference on “what to conserve” among the government, scholars and the public in relation to heritage conservation. In addition, it also showed that the news media has an effect in pushing the conservation movement forward. However, there is limited research comparing the different opinions on “how to conserve” and investigating the news media’s effect on public perception on this conservation approach.
This dissertation uses the rehabilitation of Wing Lee Street as a case study to explore and compare different perspectives on the rehabilitation work has been done on the street, ranging from those of the URA, architectural conservation scholars, those of the public expressed in questionnaires, the internet and via the news media, and news media interpretation. The comparison uses both statistical and text analyses. Findings suggested in the Wing Lee Street rehabilitation that there is no conflict in renovating the rundown Tong Lau and improving the street environments.
However, concerning the degree of renovation, the use and maintaining the original community, there is a clear difference between the Urban Renewal Authority’s and other groups. While the Urban Renewal Authority put “Regulation” as its major reference for intervention, the scholars and public showed more concerns for the “Sense of Place” and the “Continuity of Life” on the street.
The dissertation contributes to better understanding the different rationales and priorities for heritage rehabilitation from those expressed by the Urban Renewal Authority and architectural conservation professionals. In addition, it also illustrates public’s expectation on heritage rehabilitation, which will hopefully be a useful reference for a better outcome in future heritage rehabilitation projects.published_or_final_version
Conservation
Master
Master of Science in Conservation
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Li, Tong. "Lipid Class Composition of Oysters, Crassostrea virginica, Exposed to Sediment-Associated PAHs." W&M ScholarWorks, 1996. https://scholarworks.wm.edu/etd/1539617705.
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Blood, Jeremy Russell. "Monitoring rehabilitation success on Namakwa Sands heavy minerals mining operations, Namaqualand, South Africa." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/2310.
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Thesis (MScConsEcol(Conservation Ecology and Entomology)--University of Stellenbosch, 2006.Anglo American Corporation’s Namakwa Sands heavy minerals mining and beneficiation operation has been strip-mining a heavy mineral deposit, rich in the commercially valuable minerals ilmenite, rutile and zircon, since September 1994. The mine is located in the vicinity of Brand-se-Baai on the west coast of South Africa, approximately 385 km north of Cape Town. Strip-mining causes total destruction of natural ecosystems through the removal of vegetation and soil in the area where mining is being undertaken. Namakwa Sands has been rehabilitating mined out areas as the mining front moves forward. Due to the difficulty of rehabilitating mined out areas as a result of harsh environmental factors, Namakwa Sands has initiated various research projects to gain an understanding of the baseline conditions and ecosystem function in order to increase plant cover and biodiversity on post-mined areas. This on-going research and the development of rehabilitation and mining techniques have resulted in the implementation of four rehabilitation techniques varying in investment of topsoil replacement, seeding and plant translocation. This study assesses the success and effectiveness of these techniques in terms of various vegetation and soil parameters. In addition, those parameters that are considered useful for monitoring are identified. This study indicated that topsoil replacement and plant translocation facilitate the return of similarity, species richness, species diversity and vegetation cover to post-mined areas. The rehabilitation site that had the greatest amount of biological input (topsoil replacement and plant translocation) appeared to be the most successful technique in facilitating vegetation recovery similar to reference sites. In comparison, the site that had the least amount of biological input performed the worst and requires adaptive management, e.g. reseeding and / or plant translocation. Namakwa Sands should continue to replace topsoil in all future rehabilitation efforts and, when possible (e.g. after sufficient winter rain), continue to translocate species in multi-species clumps. In terms of species selected for translocation, Othonna cylindrica, Ruschia versicolor and Lampranthus suavissimus should be considered for future large-scale translocation projects. Zygophyllum morgsana appears to be more difficult to re-establish under the current climatic conditions (below average rainfall). The long-term viability of rehabilitated Z. morgsana populations needs to be determined before considering this species for any future large-scale translocation purposes. No translocated Asparagus spp. individuals survived and should therefore not be considered for any further translocation purposes. The grass Ehrharta calycina, which is dominant in the site seeded, should continue to be considered for future seeding. Species and functional diversity appear to be the most limiting factors within all the rehabilitation sites and Namakwa Sands will not be able to meet their long-term objective of small-stock farming if diversity and the number of palatable species do not increase significantly. Adaptive management should seriously be considered in order to speed up this process. Alternatively, an appropriate grazing strategy, which is related to the Tetragonia fruticosa dominated vegetation within rehabilitation sites, would need to be determined and adopted.More time is needed to ameliorate the rehabilitated soil profiles to the same level as in reference sites, especially with regard to carbon, pH and sodium levels. In order to increase organic matter within rehabilitation areas, Namakwa Sands should consider creating clumps with cleared vegetation from the mining front. Since the long-term rehabilitation goal has not been achieved, Namakwa Sands will need to continue to monitor plant and soil changes until it has been achieved. The objectives of the current rehabilitation programme are limited and Namakwa Sands should develop additional objectives relating to the structure and function of the natural vegetation. This will give a better indication of whether rehabilitation sites are progressing towards the desired end point and if adaptive management is required. In addition, the current monitoring programme (vegetation survey) implemented at Namakwa Sands could be improved by increasing the vegetation parameters to be monitored. It is recommended that the following vegetation parameters be monitored as part of the long-term monitoring programme: species composition and similarity, species richness, species diversity, vegetation cover, species dominance, vertical structure and functional diversity of the vegetation (clumps and inter-clumps). It is also recommended that carbon, pH and sodium of soil profiles be monitored as part of the long-term monitoring programme. These parameters should not be seen as exhaustive as this study only considered various vegetation parameters and soil chemistry between rehabilitation and reference sites. The results of other studies on the fauna, mycorrhiza, insects, etc. should also be taken into consideration and the monitoring parameters expanded accordingly.
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Aitken, Gill. "A new approach to conservation : emphasising the importance of the individual through wildlife rehabilitation as a case study." Thesis, Lancaster University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322202.
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Ikenouye, Tara L. 1975. "Sustainable Historic Preservation: A Rehabilitation Plan for the Jeff. Smith's Parlor Museum in Skagway, Alaska." Thesis, University of Oregon, 2009. http://hdl.handle.net/1794/9916.
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xii, 145 p. : ill. (some col.), maps. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.In an effort to confront global warming and the increasing scarcity of resources, the preservation community began several years ago to adopt sustainable and green building practices and metrics for historic rehabilitation projects. As a result, there is an ever growing number of rehabilitated historic buildings in the United States not only incorporating sustainable building designs but also achieving Leadership in Energy and Environmental Design (LEED) certification. Most of these are large, architect-designed buildings in urban settings rehabilitated for cultural and commercial uses. This thesis explores the application of the LEED 2009 New Construction and Major Renovation Rating System for the development of a sustainable rehabilitation plan for the modest vernacular 1897 Jeff. Smith's Parlor Museum in Skagway, Alaska. The goal of this research is to demonstrate how the LEED rating system might be applied to the rehabilitation of this building and other historic vernacular buildings.
Committee in Charge: Donald L. Peting, Chair; Grant Crosby, NPS Historical Architect
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Thompson, Scott A. "Mine site rehabilitation index using the reptile assemblage as a bio-indicator." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2004. https://ro.ecu.edu.au/theses/1646.
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Currently in Western Australia there are no mandated standards for assessing rehabilitation success for the mining industry. A decade ago the focus of most mine site rehabilitation programs was to establish good density and cover of vegetation across the disturbed area. While this resulted in rehabilitated sites that were essentially stable and may have looked aesthetically pleasing, it did not necessarily mean that the rehabilitated sites were moving towards the establishment of functional ecosystems. The goal for rehabilitated mined land should be to restore the structure, diversity, function and dynamics, of the undisturbed ecosystem. In many circumstances this will mean the creation of a self-sustaining, functional ecosystem similar to that in the adjacent undisturbed area from which the rehabilitated area will recruit most of its fauna. The need for 'high-quality' rehabilitation has become necessary with the phasing in of performance standards for assessing the development of rehabilitated mine sites. Mine site rehabilitation should be viewed as managing succession processes towards the creation of ecosystems that are functionally compatible with that which existed before the disturbance or in the adjacent undisturbed areas.
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Bankey, Laura Anne. "Responses of Cytochrome P450IA in Freshwater Fish Exposed to Pulp Mill Effluents in Experimental Stream Channels." W&M ScholarWorks, 1993. https://scholarworks.wm.edu/etd/1539617660.
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Clark, James E. "Plan for the rehabilitation of a 1913 fire house located in Marion, Indiana." Virtual Press, 1985. http://liblink.bsu.edu/uhtbin/catkey/423781.
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This thesis will present information on the economic feasibility of rehabilitating an older building into office and living space. Data will show that the outlined rehabilitation project can be carried out at a lower dollar cost than new construction for a comparable amount of useable floor space.The rehabilitation project outlined in this thesis had to meet the following criteria. The current owners proposed future use of the building. All proposed modifications to the structure had to meet the Secretary of the Interior's Standards for Rehabilitation to take fullest advantage of the Tax Reform Act of 1976, and local building and zoning regulations. Rehabilitation of the building must provide the owner with enough income to completely off-set the total cost of the project within a ten year period. All of the proposed work on the building would have to meet the current owner's desire to retain as much of the building's original "character" while creating contemporary work/living space.Department of Architecture
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Pauw, Marco Johann. "Monitoring ecological rehabilitation on a coastal mineral sands mine in Namaqualand, South Africa." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17886.
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Thesis (MSc)--Stellenbosch University, 2011.ENGLISH ABSTRACT: The Exxaro Namakwa Sands heavy mineral sands mine at Brand-se-Baai, on the west coast of South Africa, is an important source of income, development and job-creation in the region. However, this comes at a great environmental cost, as strip mining causes large scale destruction of ecosystems through the complete removal of vegetation and topsoil. This is particularly problematic in an environment, such as Namaqualand, where the arid and windy climate, as well as saline and nutrient-poor soils, hamper rehabilitation. These environmental constraints create the need to develop a site-specific rehabilitation program. At Namakwa Sands the objective of rehabilitation is to “rehabilitate and re-vegetate disturbed areas and establish a self-sustaining Strandveld vegetation cover in order to control dust generation, control wind and water erosion, as well as restore land capability. In general, vegetation will be rehabilitated to a minimum grazing standard capable of supporting small stock (sheep) grazing.” In order to achieve this Namakwa Sands conducted rehabilitation experiments with topsoil replacement, seeding of indigenous species and translocation of mature plants. Monitoring is an important part of the rehabilitation process as it allows rehabilitation practitioners to evaluate success and to adapt their management strategies and rehabilitation methods, as well as to evaluate and, if necessary, change their rehabilitation objectives. This study forms part of the monitoring process at Namakwa Sands. It assesses the success of sites that were experimentally rehabilitated in 2001 and a site that was rehabilitated in 2008, using current practice, in order to identify possible management requirements on rehabilitated sites as well as improvements on rehabilitation objectives, methods and monitoring. This study also tests the Landscape Function Analysis (LFA) as rehabilitation monitoring tool by correlating LFA indices with traditional measurements of biophysical variables or their surrogates. Results showed that experimental sites were not successful in returning vegetation cover and plant species richness to the required levels, but did achieve the grazing capacity objective. These sites will need adaptive management to achieve the vegetation cover and plant species richness objectives. The recently rehabilitated site achieved the three-year vegetation cover and plant species richness objectives, as well as the grazing capacity objective, within two years after rehabilitation. Namakwa Sands should therefore continue using the current rehabilitation method. However, rehabilitation should be done in multiple stages in future to decrease the mortality of nursery cuttings and to facilitate the return of late successional species to rehabilitated sites. The sustainability of small stock farming on rangeland with the grazing capacity that is identified as the minimum objective is questionable and this merits further investigation. LFA can be a useful tool to monitor nutrient cycling and soil stability at Namakwa Sands, provided that enough replicates are used. However, LFA cannot be used as is to assess water infiltration at Namakwa Sands, due to assumptions in the calculation of this index that do not hold for the Namaqualand environment. Landscape functioning should be monitored annually to complement vegetation surveys.
AFRIKAANSE OPSOMMING: Die Exxaro Namakwa Sands swaarminerale-sandmyn by Brand-se-Baai, aan die weskus van Suid-Afrika, is ‘n belangrike bron van inkomste, ontwikkeling en werkskepping in die streek. Daar is egter negatiewe omgewingsimpakte aan verbonde, aangesien die strookmyntegniek grootskaalse vernietiging van ekosisteme veroorsaak deur die algehele verwydering van die plantegroei en bogrond. Dit is veral problematies in ‘n omgewing, soos Namakwaland, waar die droë en winderige klimaat, asook die souterige en voedingstof-arme grond, rehabilitasie belemmer. Hierdie beperkings wat deur die omgewing veroorsaak word skep die behoefte om ‘n rehabilitasieprogram te ontwikkel wat spesifiek is tot die terrein. Die doel van rehabilitasie by Namakwa Sands is om te rehabiliteer en herplant op versteurde gebiede en om selfonderhoudende Strandveld plantbedekking te vestig om sodoende stofgenerering te beheer, om wind- en watererosie te beheer, en om grondgebruik-vermoë te herstel. In die algemeen sal plantbedekking gerehabiliteer word tot ‘n minimum weidingskapasiteit wat kleinveeweiding (skaapweiding) kan onderhou. Om dit te bereik het Namakwa Sands rehabilitasie-eksperimente uitgevoer met terugplasing van bogrond, saai van inheemse spesies en oorplanting van volwasse inheemse plante. Monitering is ‘n belangrike deel van die rehabilitasieproses, aangesien dit rehabilitasie-praktisyns in staat stel om sukses te evalueer en om bestuurstrategieë en rehabilitasiemetodes aan te pas, sowel as om rehabilitasiedoelwitte te evalueer en, indien nodig, aan te pas. Hierdie studie vorm deel van die moniteringsproses by Namakwa Sands. Dit assesseer die sukses op persele wat eksperimenteel gerehabiliteer is in 2001 en ‘n perseel wat in 2008 gerehabiliteer is, volgens die huidige praktyk, om moontlike bestuursbehoeftes op gerehabiliteerde persele en verbeteringe aan rehabilitasiedoelwitte, -metodes en –monitering te identifiseer. Hierdie studie toets ook die geskiktheid van die Landscape Function Analysis (LFA) as ‘n rehabilitasie-moniteringsinstrument deur LFA-indekse met tradisionele metings van biofisiese veranderlikes of hul surrogate te korreleer. Resultate dui daarop dat eksperimentele persele nie suksesvol was om plantbedekking en plantspesies-rykdom tot die vereiste vlakke te herstel nie, maar wel die weidingskapasiteit-doelwit bereik het. Hierdie persele benodig aanpassingsbestuur om plantbedekking- en plantspesiesrykdom-doelwitte te bereik. Die perseel wat onlangs gerehabiliteer is, het binne twee jaar na rehabilitasie die drie-jaar plantbedekking- en plantspesiesrykdom-doelwitte, sowel as die weidingskapasiteitdoelwit bereik. Daarom moet Namakwa Sands voortgaan om die huidige rehabilitasiemetode te gebruik. Rehabilitasie moet egter in die toekoms in veelvoudige stadiums gedoen word om die mortaliteit van kwekery-steggies te verminder en om die terugkeer van laatsuksessionele spesies na gerehabiliteerde persele te fasiliteer. Die volhoubaarheid van kleinveeboerdery op weiveld met die minimum vereiste weidingskapasiteit word betwyfel en vereis verdere ondersoek. LFA kan ‘n bruikbare instrument wees om siklering van voedingstowwe en grondstabiliteit te monitor by Namakwa Sands indien genoeg repliserings gebruik word. LFA kan egter nie in die huidige vorm gebruik word om waterinfiltrasie by Namakwa Sands te assesseer nie, aangesien daar aannames in die berekening van die indeks is wat nie juis is in die Namakwaland omgewing nie. Landskapfunksionering behoort jaarliks gemoniteer te word om plantopnames aan te vul.
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Vanstreels, Ralph Eric Thijl del Val Oñoro. "Estudo da malária aviária e outros hemoparasitas em pinguins na costa atlântica da América do Sul." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/10/10133/tde-29092014-105755/.
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Embora não existam colônias reprodutivas de pinguins na costa do Brasil, o país é uma importante área de invernada para o pinguim-de-Magalhães (Spheniscus magellanicus), uma espécie nativa do sul da América do Sul. Quando encontradas debilitadas em praias brasileiras, estas aves são comumente levadas a centros de reabilitação especializados para receber cuidados veterinários e, posteriormente, serem liberadas à natureza. Durante esta permanência em reabilitação, no entanto, enfermidades infecciosas como a malária aviária podem ser importantes limitantes à recuperação destas aves. A malária aviária é uma enfermidade causada por protozoários do gênero Plasmodium (Apicomplexa: Haemosporida), veiculados às aves por meio da picada de mosquitos. Enquanto estes parasitas são relativamente pouco patogênicos para a maioria das espécies aviárias, algumas aves como os pinguins são excepcionalmente mais suscetíveis a estes patógenos, podendo constituir uma significativa ameaça à sua conservação. O presente estudo investiga a ocorrência de Plasmodium spp. e outros hemoparasitas em pinguins-de-Magalhães em centros de reabilitação na costa brasileira, assim como outras espécies de pinguins em vida livre nas Ilhas South Shetland. Métodos diagnósticos morfológicos (esfregaços sanguíneos, histopatologia) e moleculares (reação em cadeia de polimerase aninhada, sequenciamento genético) foram utilizados para estudar pinguins reabilitados em diferentes instituições em seis estados do Brasil entre 1999 e 2013. Um surto de malária aviária particularmente relevante foi estudado em detalhes em um centro de reabilitação em Florianópolis, SC, tendo sido demonstrado o envolvimento de três diferentes linhagens de Plasmodium spp. em um único evento epizoótico, com elevada morbidade e mortalidade. Além disto, a ocorrência de Plasmodium spp. foi documentada em pinguins-de-Magalhães em centros de reabilitação ao longo de grande parte da costa brasileira, do extremo sul do Rio Grande do Sul à Bahia, com uma prevalência estimada entre 6.6% e 13.5%. Estas infecções apresentam marcante sazonalidade, incidindo exclusivamente nos meses mais quentes do ano (outubro a abril), e podem envolver uma grande variedade de linhagens de Plasmodium spp., algumas das quais nunca haviam sido reportadas em pinguins como P. cathemerium, P. nucleophilum e P. tejerai. Em contraste não foram encontrados hemoparasitas em pinguins amostrados nas Ilhas South Shetland, um achado consistente com estudos anteriores. À parte destas investigações epidemiológicas, foi realizada uma extensa revisão e compilação dos aspectos da literatura científica acerca desta enfermidade e outras hemoparasitoses em pinguins buscando estabelecer um panorama mais claro acerca da sua distribuição geográfica e implicações epidemiológicas e para a conservação. Com base nisto, torna-se possível desenvolver uma discussão crítica do atual estado da arte e apontar as atuais lacunas de conhecimento que possam direcionar estudos futuros. Em suma, a malária aviária é uma enfermidade relevante para as mais diversas espécies de pinguins em todo o mundo, e possui particular importância para a reabilitação e conservação destas aves na América do Sul.Despite no penguin breeding colonies along the Brazilian coast, the country is an important wintering area for the Magellanic penguin (Spheniscus magellanicus), a species native to the south of South America. When Magellanic penguins are found alive ashore on Brazilian beaches, they are taken to rehabilitation centers to receive veterinary care and then are released back into the wild. However, while in rehabilitation, infectious diseases such as avian malaria may become important limiting factors for the recovery of these birds. Avian malaria is a disease caused by protozoa of the genus Plasmodium (Apicomplexa: Haemosporida), which are transmitted to birds through mosquitoes. While these parasites are relatively non-pathogenic for most avian species, some birds such as penguins are exceptionally susceptible, such that Plasmodium poses a significant conservation threat. This study investigates the occurrence of Plasmodium spp. and other blood parasites in Magellanic penguins at rehabilitation centers along the coast of Brazil, and in other species of penguins at the South Shetland Islands, South Atlantic Ocean. In Brazil, a combination of morphological (blood smears, histopathology) and molecular (nested polymerase chain reaction, gene sequencing) diagnostic methods were employed to investigate the presence of haemoparasites in penguins undergoing rehabilitation in six states between 1999 and 2013. A particularly significant avian malaria outbreak was studied in detail at a rehabilitation center in Florianópolis, SC, where the involvement of three distinct Plasmodium spp. in a single epizootic event was demonstrated, with resultant high morbidity and mortality. The occurrence of Plasmodium spp. was documented in Magellanic penguins at rehabilitation centers along most of the Brazilian coast, from southernmost Rio Grande do Sul to Bahia, with an estimated prevalence between 6.6% and 13.5% of captive penguins. These infections were markedly seasonal, with the incidences exclusively restricted to the warmer months of the year (October to April), and involving a broad variety of Plasmodium spp. lineages, some of which had not yet been reported in penguins, such as P. cathemerium, P. nucleophilum and P. tejerai. In contrast, no blood parasites were detected in the penguins sampled at the South Shetland Islands, a finding that is consistent with previous studies. Aside from these epidemiological investigations, an extensive revision and compilation of the scientific literature was conducted for this disease and other penguins haemosporidioses, aiming to establish an integrated understanding of their geographic distribution and epidemiological and conservation implications. On this basis, it is possible to critically examine the state of the art and identify knowledge gaps that can be addressed in future studies. Avian malaria is a significant disease and conservation threat for most penguin species throughout the world, and has particular importance for the rehabilitation and conservation of penguins in South America.
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Santos, Adriana Maria Mendes. "Zonas de áreas culturais." Master's thesis, Unniversidade de Lisboa. Faculdade de Arquitetura, 2017. http://hdl.handle.net/10400.5/13835.
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Dissertação de Mestrado Integrado em Arquitetura, com a especialização em Arquitetura, apresentada na Faculdade de Arquitetura da Universidade de Lisboa para obtenção do grau de Mestre.A reabilitação, conservação e restauro são conceitos que necessitam de ser revisitados a cada intervenção, tarefa cuja base operativa passa invariavelmente pelo estudo da história do objeto em questão. Este trabalho final de mestrado, em particular, detém- -se sobre um palácio do fim do século XIX e o sobre o respetivo perímetro envolvente, localizado no concelho de Loulé. O lugar, nomeado originalmente pelo proprietário como Quinta da Esperança, mas que subsiste até hoje nomeado como Quinta da Fonte da Pipa, encontra-se votado a um abandono que é alvo de muitas críticas, reclamando- -se à escala local uma intervenção urgente, no sentido da sua preservação. Para além do trabalho de análise e interpretação que procura garantir a valorização correta da pré-existência, faz-se ainda objeto do trabalho a realização de uma proposta para a reabilitação funcional do Palácio, por forma a suportar visitas pontuais, a realização de atividades culturais diversificadas e ainda – com o apoio logístico de uma segunda infraestrutura a reabilitar a sul do palácio – a possibilidade eventual de pernoitar na antiga propriedade.
ABSTRACT: Rehabilitation, conservation and restoration are concepts that need to be revisited for each intervention, covering them to explore the history of the object in question. The final masters work project, in particular, is a place with a palace of the late 19th century in the County of Loulé. The first owner called the place Quinta da Esperança, but it’s now called Quinta da Fonte da Pipa. At the moment, it’s in a state of abandonment, making it a target of criticism, meaning, today it needs an urgent intervention. In addition to the work of analysis and interpretation to guarantee the correct appreciation of its pre-existence, there will be a proposition for a functional rehabilitation and creation of regional activities for its visitants. To support this proposition, a building south of the palace will be created, so visitors can stay overnight.
N/A
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Ghebremariam, Ghirmai Emun, Karen Joan Esler, and Leanne L. Dreyer. "Monitoring the success of an old-field rehabilitation trial in the winter rainfall succulent Karoo : the effect of Oxalis pes-caprae." Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/4481.
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Thesis (MSc (Conservation Ecology)--University of Stellenbosch, 2004.89 leaves single sided printed, preliminary pages i-xiv and numbered pages 1-89. Includes bibliography. List of tables, figures used.
Scanned with a Hp Scanjet 8250 Scanner to pdf format (OCR).
ENGLISH ABSTRACT: The main aim of an old field rehabilitation trial initiated in 2000 was to find a solution to the rehabilitation process for approximately 90 000 ha of unutilised land in the Little Karoo, South Africa. Depending only on a natural succession process to restore unutilised old fields would mean that the period of recovery would be longer than the life span of an average farmer. The trial, initiated by Witbooi in 2000 aimed to see how human intervention can facilitate the process of rehabilitation of old-fields. Three years later, the trial was again monitored to evaluate the success of reseeded indigenous species and method of cultivation in the rehabilitation process. A second objective was based on a result of Witbooi (2002) who showed that there was a tendency of 0. pes-caprae to invade disturbed areas, and aimed to evaluate the effect of this species on the rehabilitation process. Seven indigenous species were reseeded in 2000, of which only four species germinated and survived to the present. These surviving species are Pteronia incana Burm Dc., Tripteris sinuata DC., Ehrharta calycina SM and Chaetobromus dregeanus Nees. The highest level of recruitment in 2001 was recorded for T sinuata followed by P. incana, E. calycina and C. dregeanus. In September 2003, three years after the trial was initiated, the highest number of surviving seedlings were of T sinuata followed by E. calycina, C. dregeanus and P. incana. Five different cultivation methods were used to enhance the germination rate and survival of seedlings. The number of seedlings that survived differs according to the cultivation methods and soil type. Tripteris sinuata had the highest number of surviving seedlings in all cultivation methods off-heuweltjies. Tripteris sinuata was therefore selected to analyse the effect of various cultivation methods. The second objective was to study the impact of Oxalis pes-caprae on species diversity in restored old fields by assessing its ability to disperse in old fields under different cultivation methods. The multivariate ANOVA results showed that there was a significant difference in the density of O. pes-caprae between on and off heuweltjies (sites) and treatments (cultivation methods). There was a significant difference in the density of O. pes-caprae between cultivation methods. A Post Hoc LSD test showed a significant difference in the density of aboveground O. pes-caprae plants between control sites (no disturbance) compared to those sites that underwent some sort of soil disturbance. There was, however, no significant difference in the abundance of O. pes-caprae on plots that underwent some sort of disturbance (i.e Cleared vs Tilled vs Disked vs Ploughed sites) on heuweltjies. There was a significant difference in the number of O. pes-caprae bulbs collected between blocks (on and off-heuweltjie) and significant differences between cultivation methods. There was also a significant difference in bulb diameter between cultivation methods when compared between on and off-heuweltjie sites. The bulbs were classified into four measurement classes. The highest number of small (2-5 mm diameter) and medium (5-8 mm diameter) sized bulbs were found in the Tilled cultivation method. In contrast the Control treatment (uncultivated) had the highest number of large sized bulbs (14-17 mm diameter) and medium bulbs size categories. In conclusion, T. sinuafa has the potential to be used for rehabilitation of old fields in combination with Tilled cultivation method. Attention should be paid to the effect of O. pes-caprae especially on heuweltjies where this species showed a complete dominance in the rehabilitation trial.
AFRIKAANSE OPSOMMING: Die hoof doel van 'n ou veld rehabilitasie eksperiment wat in 2000 geinisieer is was om 'n oplossing te vind vir die rehabilitasie proses vir ongeveer 90 000 ha onbenutte land in die Klein Karoo, Suid-Afrika. Indien daar slegs op natuurlike suksessie prosesse staatgemaak word om die onbenutte ou lande te restoreer, sou dit beteken dat die periode van herstel langer sou wees as die lewensverwagting van die gemiddelde boer. Hierdie eksperiment, wat in 2000 deur Witbooi geinisieer is, het gepoog om te bepaal hoe menslike inmenging die proses van rehabilitasie van ou velde kan fasiliteer. Drie jaar later is die eksperiment weer gemonitor om die sukses van die teruggesaaide inheemse spesies en bewerkings-metodes in die rehabilitasie proses te evalueer. 'n Tweede doelwit is gebaseer op 'n resultaat van Witbooi (2002) wat aangetoon het dat daar 'n neiging was vir O. pes-caprae om versteurde areas binne te dring, en het dus gemik om die effek van hierdie spesie op die rehabilitasie proses te evalueer. Sewe inheemse spesies is in 2000 teruggesaai, waarvan slegs 4 spesies ontkiem en oorleef het tot die hede. Hierdie oorlewende spesies is Pteronia incana Burm Dc., Tripteris sinuata DC., Ehrharta calycina SM en Chaetobromus dregeanus Nees. Die hoogste vlak van werwing in 2001 is vir T sinuata aangeteken, gevolg deur P. incana, E. calycina en C. dregeanus. In September 2003, drie jaar na die aanvang van die eksperiment, was die hoogste getal oorlewende saailinge die van T sinuata, gevolg deur E. calycina, C. dregeanus en P. incana. Vyf verskillende bewerkings-metodes is gebruik om ontkiemingstempo en saailing oorlewing aan te help. Die aantal saailinge wat oorleef het varieer volgens die bewerkings-metode wat gevolge is en die grondtipe. Tripteris sinuata het die grootste aantal oorlewende saailinge gehad in al die bewerkings-metodes af van heuweltjies. Tripteris sinuata is daarom geselekteer om te analiseer vir die effek van verskillende bewerkings-metodes. Die tweede doelwit was om die inpak van Oxalis pes-caprae op spesie-diversiteit in die gerestoreerde ou land te bepaal deur die vermoë van hierdie spesie om in ou velde te versprei onder verskillende bewerkings-metodes te evalueer. Die multi-veranderlike ANOVA resultate het aangetoon dat daar 'n beduidende verskil in O. pes-caprae digtheid tussen heuweltjie en nie-heuweltjie (persele) en verskillende bewerkings-metodes was. Daar was 'n beduidende verskil in die digtheid van o. pes-caprae tussen verskillende bewerkingsmetodes. 'n Post Hoc LSD toets het 'n beduidende verkil in die digtheid van bogrondse O. pes-caprae plante tussen kontrole terreine (geen versteuring) vergeleke met persele wat een of ander vorm van grondversteuring ondergaan het aangedui. Daar was egter geen beduidende verskil in die volopheid van 0. pes-caprae op persele wat een of ander vorm van versteuring ondergaan het (i.e Skoongemaakte vs Getilde vs Geskottelde vs Geploegde persele) op heuweltjies nie. Daar was 'n beduidende verskil in die aantal O. pes-caprae bolle wat versamel is tussen blokke (op en af van heuweltjies) en beduidende verskille tussen die bewerkings-metodes. Daar was ook 'n beduidende verskil in bol-deursnitte tussen bewerkings-metodes wanneer dit tussen heuweltjie en nie-heuweltjie persele vergelyk is. Die bolle is in vier metingsklasse verdeel. Die grootste aantal klein (2-5 mm deursnit) en medium (5-8 mm deursnit) bolle is in die Getilde bewerkings-metode gevind. In kontras het die Kontrole behandeling (onbewerk) die grootste aantal groot (14-17 mm deursnit) en medium bolle gehad. Samevattend het T. sinuata die potensiaal om gebruik te word in die rehabilitasie van ou lande in kombinasie met die tilting bewerkings-metode. Aandag moet geskenk word aan die effek van 0. pes-caprae, veral op heuwetjies waar hierdie spesies 'n totale dominansie in die rehabilitasie eksperiment getoon het.
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Hamm, Karen L. "The importance of incorporating building science knowledge into guidelines to improve environmental sustainability in the rehabilitation of existing residences." Virtual Press, 2006. http://liblink.bsu.edu/uhtbin/catkey/1348354.
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This thesis examines existing rehabilitation and environmental guidelines to determine whether the guidelines are incorporating the necessary building science knowledge to ensure that insulation is performing as intended and thus promoting energy efficiency, cost effectiveness, and environmental sustainability. The results of analyzing the existing guidelines show that they do not require all that is necessary to promote energy efficiency and environmental sustainability. While several of the guidelines have started to incorporate the necessary building science perspective by requiring a whole house air leakage test, none of the guidelines examined specifically require the zonal pressure diagnostics test necessary to ensure that insulation is working to specification. The thesis also includes a comprehensive overview of environmental sustainability and rehabilitation.Department of Urban Planning
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Tomás, Andreia Carina Jacinto. "Conservação e reabilitação de estruturas arqueadas : proposta metodológica de intervenção." Master's thesis, Universidade de Lisboa. Faculdade de Arquitetura, 2014. http://hdl.handle.net/10400.5/7883.
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Caneira, Ana Rita Silvestre. "Memória da história no reabilitar." Master's thesis, Universidade de Lisboa. Faculdade de Arquitetura, 2014. http://hdl.handle.net/10400.5/12208.
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Dissertação para obtenção do grau de Mestre em Arquitectura, apresentada na Universidade de Lisboa - Faculdade de Arquitectura.Cientes do avanço global e da perda dos lugares de memória e identidade genuína de parte do património nacional, material e imaterial, pretendeu-se com este trabalho restituir e revitalizar a lembrança do que eram esses lugares. Vivemos num país enriquecido pela diferenciação cultural distinta em cada região territorial construída ao longo do tempo da nossa história. São traços identitários de culturas, expressos não só pelas construções vernaculares como também pela ação do homem nas paisagens humanizadas. Consequente do abandono e esquecimento de parte do interior do nosso país, identificamos a Região Saloia como símbolo desta problemática. Distinta pelas suas especificidades e identidade, cultural e arquitetónica, original. Com vista à requalificação desta região, elegeu-se o Casal do Rebolo (Almargem do Bispo, Sintra), como símbolo desta cultura vernácula. Desenvolveu-se a sua leitura fenomenológica, com base na experiência da realidade atual, identificando o seu sentido verdadeiro para dar continuidade ao significado original do lugar.
ABSTRACT: Being aware of the global advancement and of the loss of memory places and also those of genuine identity, part of the national heritage, material and non-material, the purpose of this work is to remember what those places used to be and to revitalise them. We live in a country enriched by the cultural differences in each territorial region built throughout our history. They are identity traits, shown not only in vernacular constructions but also through man’s action in humanized landscapes. The Saloia Region, included in part of the countryside abandoned and forgotten in our country, is identified as a symbol of this problematic. Its difference lies in its original specificity and identity, both culturally and architectonically. In order to rehabilitate this region, Casal do Rebolo (Almargem do Bispo, Sintra) has been selected as a symbol of this vernacular culture. A phenomenological approach has been taken, based on the current reality, identifying its true meaning so as to ensure the continuity of the original significance of the place.
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Mézin, Laurent C. "The Effects of Contaminated Sediment on the Epidermal Goblet Cells of the Mummichog, Fundulus heteroclitus." W&M ScholarWorks, 1994. https://scholarworks.wm.edu/etd/1539617665.
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Secretion of mucus by epidermal goblet cells is an important first line of defense for teleosts. It protects them against many of the biological, physical and chemical insults they encounter in their environment. This project monitored changes in hemoglobin concentration in epidermal mucus and in the density, diameter and mucus quality of epidermal goblet cells in the mummichog, Fundulus heteroclitus, following exposure to creosote-contaminated sediment. Male fish (200) were exposed for 13 days in flowthough aquaria to either an uncontaminated reference sediment or contaminated sediment containing 30% Elizabeth River sediment. Fish were sampled on Days 0, 3, 7 and 13. The hemoglobin content of their mucus was assessed using a commercial hemoglobin test strip. Their condition index was determined and a portion of their ventral skin was mounted after sequential staining by alcian blue and periodic acid Schiff s reagent. The proportion of the mucin types present in the goblet cells, differentiated by the stains, was determined using light microscopy (600x). The aromatic compound concentrations in test aquaria effluents decreased significantly during the experiment, probably as a result of a reduction in resuspension of the sediment by the fish. The condition index was lower and the mortality rate and occurrence of epidermal lesions were higher in the treated fish than in the control fish. The hemoglobin content in the epidermal mucus of treated fish was significantly higher than in control fish. Significant reductions in both size and density of goblet cells observed in treated fish suggested a mucus secretion rate exceeding its production rate. Significant variations in mucin types occurred in both treatments, most likely as a result of the transfer of the fish from the holding tank to the experimental aquaria. Significant changes in mucin types between treatments did not occur until Day 13 and are not believed to be directly related to the creosote present in the treatment sediment.
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Mirabilio, Sara. "Vitellogenin -- a Biomarker of Exposure to Environmental Estrogens for Mummichog (Fundulus heteroclitus) from a Creosote-Contaminated Site?" W&M ScholarWorks, 2001. https://scholarworks.wm.edu/etd/1539617770.
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Vitellogenin (VTG) is widely used as a biomarker for environmental estrogens and reproductive disruption in fish. Vitellogenesis is the process by which yolk is formed. The endpoint is most sensitive in male fish where vitellogenesis is an abnormal process. Research examining effects of environmental mixtures of chemicals (e.g. creosote) on vitellogenesis is limited. This study examines plasma VTG expression in both male and female mummichog, Fundulus heteroclitus, collected from a creosote-contaminated site and two reference sites in lower Chesapeake Bay, USA, and in wild-caught male reference fish exposed in the laboratory to creosote-contaminated sediment. Further, this study uses tissue somatic indices (gonadosomatic index, hepatosomatic index, and condition factor) as organ-level indicators of reproductive status and creosote exposure. Western blotting with an anti-vitellogenin monoclonal antibody (FY 10- 9) was used to identify an abundant (approx. 218 kDa) protein in F. heteroclitus plasma samples. Vitellogenin was not observed in any male fish collected from any of the field sites. No sitespecific differences were observed in plasma VTG of females from these sites. Overall, fish from the creosote-contaminated site appear resilient and reproductively fit. After seven days of exposure, reference fish exposed to sediment from the creosote-contaminated site suffered extensive mortality (approx. 25% ), but displayed no expression of VTG and had no alterations in other measured indices except for increased hepatosomatic index and induction of the biotransformation enzyme, cytochrome P4501A (CYPlA). Lack of response in Atlantic Wood fish could be due to: (1) physiological adaptation of the population from the creosotecontaminated site to creosote exposure (2) species-specific sensitivity (3) creosote not exerting estrogenic effects and regulating vitellogenesis. Thus, while VTG has been used successfully as a practical and reliable screening method for wildlife toxicity, results herein do not support use of this biomarker for F. heteroclitus from creosote-contaminated sites. This study does reaffirm constituents of creosote binding to the aryl hydrocarbon receptor resulting in induction of CYP IA. More attention needs to be given to developing alternative biomarkers not sensitive to aryl hydrocarbon-mediated antiestrogens if detection of weak estrogens and reproductive disruption in creosote and other complex mixtures is to be achieved.
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Sampson, Shae-Lynn. "Response of wetlands to impacts from agricultural land-use practices: Implications for conservation, management, and rehabilitation in the Nuwejaars Catchment, Western Cape." University of the Western Cape, 2021. http://hdl.handle.net/11394/8154.
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Magister Artium - MAWetlands occupy about 6% of the world’s surface and are fragile ecosystems that support a diversity of plants and animals. Wetlands are increasingly recognised for their role in the provision of ecosystem services and contribution to global biodiversity. Despite this, more than half of the world’s wetlands have vanished or been degraded, primarily due to agriculture. Wetlands are constantly adjusting to disturbances occurring within them and within their surrounding landscape. It is important to recognise to what extent various disturbances affect wetlands when assessing disturbance and impact, and when considering wetland protection options. The benefit of the detailed characterisation of the sub-catchments of the Nuwejaars catchment is deepened understanding of how different combinations of land-uses and soils impact catchment hydrology, and ultimately, the wetlands within the catchment
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Rebelo, Alanna Jane. "An ecological and hydrological evaluation of the effects of restoration on ecosystem services in the Kromme River System, South Africa." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/71967.
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Thesis (MScConsEcol)--Stellenbosch University, 2012.ENGLISH ABSTRACT: Wetland systems provide vital hydrological ecosystem goods and services to mankind. When wetlands are transformed, through invasion by alien plants or replaced with agriculture, natural capital is lost, and the system is no longer able to provide the same quality of hydrological ecosystem services. Natural capital can be restored, but it involves substantial financial investment, and there is no guarantee that these hydrological ecosystem services will be fully recovered. This thesis aimed to investigate the hydrological impact of the land-cover changes in the Kromme River Catchment over the last 50 years, by using a combination of mapping and hydrological modelling techniques. We hypothesized that wetland loss in the Kromme has resulted in a shift in the flow regime, greater responsiveness to floods as a result of less storage, lower baseflow, and reduced water quality. We also hypothesised that the riparian invasion by Acacia mearnsii has caused flow reductions as a result of increased evaporation relative to the wetlands. Modelling results predict that over the past 50 years, the transformation of the floodplain wetlands in the Kromme River has shifted the flow regime, reducing baseflows and increasing the responsiveness of the catchment to extreme rainfall events. The invasion of A. mearnsii over time has also been predicted to have caused a reduction in river flow. Various restoration scenarios were considered, however if the Kromme were to be restored back to a land-cover state comparable to the 1950’s, 26.9 km2 (65.1%) of A. mearnsii would have to be cleared, and 5.2 km2 (34.2%) of the wetlands would have to be restored. The hydrological benefits would include a predicted increase in riverflow (42 mm/a), baseflow (2.9 mm/a), an increase in flood protection and improved water quality. This restoration strategy could be regarded as a type of insurance plan, and the benefits gained in terms of increased ecosystem service delivery would be the insurance premium. In conclusion it appears that restoration, insuring natural capital in the Kromme River, would provide significant economic returns on investment.
AFRIKAANSE OPSOMMING: Moeraslandstelsels voorsien die mens van noodsaaklike hidrologiese ekosisteemgoedere en -dienste. Wanneer moeraslande verander word, hetsy deur die indringing van uitheemse plante of vervanging met landboubedrywighede, gaan natuurlike kapitaal verlore en kan die stelsel nie meer dieselfde gehalte hidrologiese ekosisteemdienste lewer nie. Hoewel natuurlike kapitaal herwin kan word, behels dit beduidende finansiële belegging, en is daar boonop geen waarborg dat die hidrologiese ekosisteemdienste ten volle sal herstel nie. Hierdie tesis het ten doel gehad om die hidrologiese impak van die grondbedekkingsveranderinge in die Krommerivier-toeloopgebied oor die afgelope 50 jaar met behulp van ’n kombinasie van karterings- en hidrologiese modelleringstegnieke te ondersoek. Die hipotese was dat moeraslandverlies in die Kromme tot ’n verandering in die vloei-regime, hoër responsiwiteit op erge reënval as gevolg van minder bergingsruimte, ’n laer basisvloei en swakker watergehalte gelei het. Daar is voorts gehipoteseer dat die oewerindringing deur Acacia mearnsii ’n verlaging in vloei veroorsaak het weens ’n toename in verdamping uit die moeraslande. Modelleringsresultate dui daarop dat die transformasie van die vloedvlakte-moeraslande in die Krommerivier oor die afgelope 50 jaar die vloei-regime verander het, basisvloei verminder het en die toeloopgebied se responsiwiteit op erge reënval verhoog het. Die indringing van A. mearnsii het ook volgens aanduidings mettertyd ’n vermindering in riviervloei tot gevolg gehad. Verskeie herstelscenario’s is oorweeg. Om die grondbedekking in die Kromme te herstel tot wat dit in die 1950’s was, moet 26,9 km2 (65,1%) van die A. mearnsii verwyder en 5,2 km2 (34,2%) van die moerasland herwin word. Die hidrologiese voordele kan ’n verwagte toename in riviervloei (42 mm/a) en basisvloei (2,9 mm/a), ’n toename in vloedbeskerming sowel as beter watergehalte insluit. Hierdie herstelstrategie kan as ’n soort versekeringspolis beskou word, en die voordele verbonde aan beter ekosisteemdienslewering as die versekeringsuitbetalung. Ten slotte blyk dit dat die herstel van die Kromme, en die gepaardgaande versekering van natuurlike kapitaal, beduidende ekonomiese opbrengste op belegging sal meebring.
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Cakici, Sermin. "A Proposal For Preservation And Rehabilitation Of Yeni Galle Pazari Hani (former Ali Pasa Kervansarayi) And Its Immediate Surrounding In Bursa." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609591/index.pdf.
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The theme of the thesis is the influence of the urban development activities on the historic commercial areas. Hence, the thesis focuses on the evaluation of these factors which cause alterations and transformations within the area and aims to propose compatible solutions against the problems in order to achieve the sustainability of the historic texture within the commercial area.
In this thesis, Yeni Galle Pazari Hani,, one of the 16th century Ottoman Hans in the Hanlar District of Bursa, is studied together with its immediate surrounding. In order to define necessities and requirements of a transformed historic commercial area, it is aimed to conduct research, analysis, and decision stages concerning the studied area. For this purpose, the values, the problems and the potentials of the study area are defined and alternative conservation solutions are proposed. It is also aimed to present the principles and decisions on the preservation and rehabilitation of the study area, called as ‘
Yeni Galle Pazari Hani and its immediate surrounding&
#8217
, in environmental scale. Therefore, the main aim of the thesis is to determine the principles and the tools of an urban conservation project within the context of environmental scale and to re-gain the unity of Yeni Galle Pazari Hani as much as possible by integrating it into the current atmosphere of Hanlar District in Bursa together with the traditional texture surrounding it. In this study, the insufficiency observed in preparatory stages of most of current restoration projects was emphasized. Hence, before intervention of such kind of traditional areas, it is aimed to take care of documentation, to make a comprehensive study on unobserved parts of traditional texture such as archeological excavation, and to form a worksheet containing principles and decisions for future studies that would be done under various disciplines. The proposal for the case of Yeni Galle Pazari Hani is significant as being composed of documentation, observation and decision parts of a proper intervention, although it can be accepted as an incomplete project, since being the first step of a comprehensive restoration project for the study area. In conclusion, this study exemplifies the documentation and the evaluation of the transformation in a historic commercial area and the suggestion to solve the general problems among the Historical Commercial Center of the cities by taking decisions on conservation and rehabilitation for the sustainability of the study area.
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Vaselaar, Kirsten J. "For-profit/non-profit partnerships and the federal historic rehabilitation tax credit : are they an option for your non-profit?" Virtual Press, 2006. http://liblink.bsu.edu/uhtbin/catkey/1338881.
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The purpose of this creative project is to offer small non-profit organizations an overview of the legislative requirements of the Historic Rehabilitation Tax Credit Program and an understanding of the complexities involved in creating a syndicate to leverage the tax credits into project equity. Topics covered in this project include: basics of the tax credit, finding and assessing a potential project, creating a project syndicate, mitigating risk with a for-profit subsidiary, and leveraging other related sources of project funding. The intended audience for this guide is the management and board of directors of small non-profit organizations who are considering the rehabilitation of a historic structure, using the Historic Rehabilitation Tax Credit as a component of the project funding.Department of Architecture
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Mahood, Kirsten. "Strip mining rehabilitation by translocation in arid coastal Namaqualand, South Africa." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53603.
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Degree of Master of Forestry (Conservation Ecology)Thesis (MSc)--Stellenbosch University, 2003.
Full text to be digitised and attached to bibliographic record.
ENGLISH ABSTRACT: This study investigates the use of top-soiling, irrigation and translocating indigenous plants to facilitate the cost-effective return of a mined landscape to its former land-use (small stock farming) in an arid winter rainfall Succulent Karoo shrub land biome on the West Coast of South Africa. Effects of topsoil stockpiling and subsoil mineral concentration on soil fertility and chemistry were investigated, as soils are likely to determine rates of vegetation recovery on post-mined areas. Results of a radish bioassay show that stockpiling topsoil and mineral concentration subsoil decreased soil fertility. Mineral concentration decreased phosphorus, potassium, calcium, magnesium, carbon and nitrogen levels significantly relative to other soil treatments. Sodium in freshly deposited tailings was at potentially toxic levels and significantly higher than for all other soil treatments. Spreading of stockpiled topsoil over tailings may ameliorate harsh conditions created by mineral separation. Translocation of plants from pre-mined to post-mined areas was carried out on a trial basis in an effort to facilitate the return of natural vegetation and processes to strip-mined landscapes. Five local indigenous plant species: Asparagus spp., Ruschia versicolor, Othonna cylindrica, Lampranthus suavissimus and Zygophyllum morgsana were planted into multi-species clumps in a replicated experiment. Variables examined in the translocation trial included the effects of plant origin, soil treatment and/or irrigation on plant survival and establishment. The proportion of O. cylindrica transplants surviving for 15 months was greater than for other species. Whole plants survived better than salvaged plants, and Asparagus spp., R. versicolor, L. suavissimus and Z. morgsana survived better on stockpiled topsoil spread over tailings than on tailings alone. Irrigation had no consistent effect across species and treatment replicates. Salvaged-plant clumps were significantly larger than whole-plant clumps at planting, however, this effect was not observed after 12 months, indicating that whole-plant clumps grew faster than salvaged-plant clumps. The evergreen, leaf succulent shrubs O. cylindrica, L. suavissimus and R. versicolor appeared to be most suitable for large-scale translocation at Namakwa Sands. The return of biodiversity and changes in soil quality 15 months after translocation trials began were compared for combinations of top-soiling, irrigation, plant translocation and unmodified tailings. Irrigation may reduce biodiversity and seedling densities. Over a 15-month period following back filling and topsoil spreading, sodium, potassium and calcium appeared to return to levels observed for undisturbed soils. Magnesium remains at levels lower than in pre-mined soil conditions. Soil conditions may be more conducive to plant establishment and rehabilitation after back-filling of tailings and topsoil spreading. Electrical resistance increased over time indicating a reduction of free salts and salinity on rehabilitation sites. Phosphorus did not return to pre-disturbance levels, and carbon remained below pre-mining levels for at least 15 months after rehabilitation began, remaining a potential limiting factor in rehabilitation. Each rehabilitation technique that a mine employs has costs and benefits, and it is increasingly important that insights from ecology and economics are coupled if restoration efforts are going to succeed. A review of valuation systems indicates that Discounted Cash Flow Techniques (DCF) are suitable for valuation of rehabilitation operations.
AFRIKAANSE OPSOMMING: Hierdie studie ondersoek die gebruik van bogrond, besproeiing en die oorplanting van inheemse plante om die koste-effektiewe rehabilitasie van 'n stroopmynlandskap in die droë, winter reënval streek, Vetplant Karoo aan die Weskus van Suid-Afrika, wat vroeër gebruik is vir kleinvee boerdery, te bespoedig Die uitwerking van bogrondopberging en minerale konsentrasie op vrugbaarheid en chemise komposisie van grond is ondersoek, aangesien dié gronde gewoonlik die herstelspoed van plantegroei op 'n ou myn terein bepaal. Uitslae van radys proewe toon dat berging van bogrond en minerale konsentrasie van die onderliggende grond vrugbaarheid van grond laat afneem. Mynaktiwiteite en die minerale konsentrasie lei tot 'n betekenisvolle verlies aan fosfaat, kalium, kalsium, magnesium, koolstof en stikstof as die geval met ander bedrywighede. Die vlak van natrium in oorgeblywende sand na die minerale ekstraksie is hoogs giftig en is veel hoër as na ander bedrywighede. Die toediening van bogrond oor die oorblywende sand verbeter die toestand wat deur die skeiding van minerale veroorsaak is. Oorplasing van plante vanaf ongemynde na rehabilitasie gebiede is op proefbasis uitgevoer in 'n poging om die terugkeer van natuurlike plantegroei by die strookmyn te bespoedig. Vyf plaaslike inheemse plantspesies: Asparagus spp., Ruschia versicolor, Othonna cylindrical, Lampranthus suavissimus en Zygophyllum morgsana is in multi-spesie groepe geplant. Veranderlikes getoets tydens hierdie proef sluit in plantoorsprong, grond behandeling, en/of besproeiing, op die oorlewing en vestiging van plante. 'n Groter proporsie O. cylindrical as enige ander spesie het na 15 maande oorleef. Heel plante het beter oorleef as beskadigde plante. Asparagus spp., R. versicolor, L. suavissimus en Z. morgsana het beter oorleef op gebergde bogrond oor oorblywende sand as op oorblywende sand self. Besproeiing het nie 'n volgehoue uitwerking gehad op spesies of op herhaalde replisering nie. Beskadigde plantgroepe was groter as heelplant groepe toe hulle geplant is maar na 12 maande is opgemerk dat die heel-plante vinniger gegroei het. Die immergroen vetplante, 0. cylindrical, L. suavissimus en R. versicolor blyk die mees geskik vir grootskaalse oorplanting by Namakwa Sands. Herstel van biodiversiteit en veranderings in grondeienskappe 15 maande na proewe begin het, is vergelyk m.b.t. die toediening van bogrond, besproeiing, oorplanting en onbehandelde oorblywende sand. Besproeiing kan biodiversiteit en digtheid van saailinge verminder. Vyvtien maande na opvulling en die toediening van bogrond, het kalium, natrium en kalsium teruggekeer na vlakke in onversteurde grond. Magnesium vlakke was nog altyd laer as dié voordat mynaktiwiteite aangevang is. Terugplasing van sand en toediening van bogrond mag die vestiging en rehabilitasie van plante bespoedig. Weerstand vermeerder met tyd wat 'n verlaaging in vry soute en soutagtigheid in die grond wat gebruik is vir rehabilitasie aantoon. Fosfor het nie teruggekeer tot vlakke van voorheen nie en vlakke van koolstofhet na 15 maande verlaag gebly, en kan die potential tot rehabilitasie belemmer. Elke rehabilitasie tegniek wat die myn gebruik bring kostes sowel as voordele mee. Om restorasie pogings te laat slaag moet insigte vanaf ekologie en ekonomie saam ingespan word. 'n Oorsig van waardasie sisteme toon dat Afslag Kontant Vloei Tegnieke geskik is vir die evaluasie van rehabilitasie programme.
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You, Danhui 1971. "Long-term results of user participation in housing rehabilitation : the Community Design Workshop in Pointe St. Charles." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=21495.
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User participation has been regarded as an empowerment tool to help low-income people to improve housing at a low cost. It was implemented by the Community Design Workshop during the attempts at housing rehabilitation in Pointe St. Charles in the early 1970's. This thesis is focused on the long-term results of user participation employed by the CDW. Both the current physical conditions of the CDW's projects and the inhabitants' attitudes towards participation, one generation after its implementation, were studied. The research shows that the CDW's efforts involving users in housing rehabilitation not only resulted in improved housing conditions for the urban poor in the long run but had some positive impacts on the inhabitants as well. The success and failure of the CDW's work also provided empirical lessons for later participatory practice.
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Torregrosa, Enid. "Rehabilitation plan for Central Aguirre : the first American company town built in the island of Puerto Rico." Virtual Press, 1991. http://liblink.bsu.edu/uhtbin/catkey/845961.
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Puerto Rico, the smallest island of the Great Antilles , has an area of 3,400 square miles. Its major language is Spanish and it is a Commonwealth of the United States of America. The population is approximately 3.6 millions and historically had an agricultural-based economy. However, today, because of its geographic location and tropical environment , the major economic industry is tourism. Thousands of people visit the island annually to enjoy the natural scenery and experience the rich cultural heritage that it offers.Studies have shown that the majority of tourists stay in the northern part of the island where the main attractions are Old San Juan, El Yunque National Rain Forest, and the Luquillo Beach. There has been limited tourism in the southern region, where a different climatic environment prevails. As a result, a different variety of natural scenery and ecological systems exists. The most popular tourist attractions in the south are: Ponce, the second largest city; San German, the second oldest town; and, the Phosphorescent Bay in Guanica. These towns are located in close proximity to each other and, thus, a need exists to spread tourism to the rest of the southern coast.One strategy to attract tourists to this area is to rehabilitate sugar plantations that are within the region. It is on the southern coast where most of the sugar industry was established, including the two largest ones. Although this industry is presently suffering a recession, at one time it was the country's leading export. This rehabilitation will allow tourists, as well as islanders, the opportunity to experience how the sugar industry used to be. As a paradox, I am proposing a new economic boom via tourism that focuses -on a "once major income producer."Central Aguirre, in the town of Salinas, will be used as a case study for this rehabilitation plan. It is located five miles southwest of the town of Guayama, a district under consideration for listing on the National Register of Historic Places. This center of sugar production used to be the second largest in the country. The complex itself is a miniature town,built in approximately ninety-five acres. It serves as one of the best examples of the physical and social hierarchy established between the owners and the laborers. The factory closed abruptly operations in January 1991. The proposed rehabilitation intend to offers the visitor an interpretation of the way this community used to be. It will provide lodging facilities by the rehabilitation of existing cottages and laborers housing, and hotels. The historic railroad system, which the government is committed to restore, will serve as the major transportation system to the interior of Central Aguirre.The author believes that a country's heritage must be used to promote tourism. But there must be a comprehensive plan that establishes tourist trade as a vehicle for enhancing restoration and protection of historic sites and monuments. This project proposes such a plan.Department of Architecture
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Lasso, Paulo Renato Orlandi. "Uma nova técnica para conservação de alimentos frescos baseada em instrumentação eletroeletrônica automatizada." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-28012015-105150/.
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Neste trabalho é apresentado um sistema automatizado para armazenamento e conservação de alimentos vegetais frescos baseado em instrumentação eletroeletrônica e software de controle desenvolvido em LabView. Para a conservação, os produtos (já embalados) são armazenados imersos em uma solução aquosa preparada com água e um anticongelante como o etileno glicol (2%). Esta metodologia de armazenamento permite aumentar o tempo de prateleira através da redução da temperatura, sem o perigo de congelar os produtos armazenados. Os resultados mostram que a metodologia permite armazenar produtos frescos com segurança a apenas 0,4ºC acima do ponto de congelamento, enquanto que em câmaras convencionais esses devem ser armazenados a, pelo menos, 2,0ºC acima do ponto de congelamento. Essas condições proporcionam ao sistema de hidroconservação maior imunidade a perturbações de carga térmica e abertura de porta e velocidade adequada para um rápido resfriamento de produtos frescos.This work presents an automated system for fresh vegetable food conservation based on electronic instrumentation, a storage chamber, and software for system control, whose procedures were developed in LabView. For conservation the fresh packaged products are stored into a controlled temperature liquid volume (55.3 liters), i.e., an aqueous solution prepared with water and ethylene glycol (2%). This conservation methodology allows to increase shelf time of fresh vegetables by means of reducing the storage temperature range to a safe operating condition without freezing the products. Results have shown the suitability of the developed system, which enables to store fresh products with safety and preserving quality as close as 0.4°C of the freezing point. In a conventional chamber fresh products must be stored considering at least a safety range of 2.0°C, which is much farther from the freezing point. Therefore, these conditions give to the hydro-conservation system large immunity regarding thermal load perturbation as well during door operation and adequate speed for fast cooling processes for fresh products.
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Chávez, Guerrero José Angel. "Urban Regeneration of the Ancient Rimini - Marina Station." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.
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The urban regeneration of the Rimini – Marina Station area is a project with a strong possibility to be accomplished due to the conditions of the property that deem it appropriate for redevelopment established in the Piano Urbanistico Generale or General Urban Plan; however, a carefully defined project to foster actions directed to rescue existent structures and their integration with the construction of a new public building in a large and empty space of the property, with aims to restore the urban fabric of the area by covering specific needs remains to be accomplished. In the present thesis, a series of actions directed towards the analysis of the existent area are conducted, such as the RE.SIS.TO method for seismic assessment of the historic building present, and the design proposal, based on legislation on the matter, of a railway museum to promote tourism and culture public to occupy it. In addition, the design of an elementary school that follows the Montessori philosophy and contributes to the integration of the area within an urban, functional context. The result is an integrative approach that encompasses the key factors and derives into a viable project for the development of the area, in consideration with its context, historicity and needs.
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Rivera, Douglas Nazareth. "Uso de etograma na conservação de Jacutingas - Aburria jacutinga (Spix, 1825) (Galliformes: Cracidae) : comportamento antipredatório e avaliação de dieta como subsídio para a criação e soltura." Universidade Federal de São Carlos, 2016. https://repositorio.ufscar.br/handle/ufscar/7668.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
The jacutinga (Aburria jacutinga) is a large frugivore bird in the process of extinction primarily by hunting and habitat destruction. Endemic of Atlantic Forest, currently has limited distribution and isolated populations. For this reason, is the focus of some conservation programs aimed at the captive-breeding for later release and/or reintroduction into unique environments of the species. This study used behavioral assessments in a pre-release rearing system, and promoted training aimed at food aspects and predator recognition. It was observed 31 jacutingas and produced a ethogram with 68 behavioral acts, grouped into eight categories. After, were held training sessions to food type and antipredator type. Food training intended to assess food acceptance and promotion of foraging behavior. It offered 32 different food items, six of which were not accepted. It was noticed diversification acceptance of food items, especially fruits and seeds up to 20 mm, but also leaves and flowers. For foraging behaviors observed, as the capture and handling of food items, they are performed only when the jacutinga achieves the item with its beak. This may be the reason for the jacutingas remain for long periods in the same tree, when it finds items for their food. For the antipredator training it were used three models of predators: a feline (Leopardus tigrinus), one raptor (Pseudastur polionotus) and domestic dogs. In these training sessions were observed eight jacutingas. Both training sessions were positive, with behavioral responses of surveillance and defense to the models used. Also, memory tests were performed where the same models were presented for jacutingas, after 30 days of training. The results of the memory tests indicate that there was a learning result of antipredator training. The jacutingas showed the expected responses (similar to the training) when the models were presented. It highlights the importance of the work, because the results are assisting in the rehabilitation process of individuals to be used in future releases. The entire process developed in this study is being used experimentally as a pilot in" Protocolo de Soltura de Jacutingas " coordinated by SAVE Brazil. The training and the tests are intended to increase the survival rate of birds used in release programs, through techniques that enhance and/or induce the production of behaviors that express survival skills in nature; in this case, foraging skills and predator recognition as behavioral indicators to obtain individual fitness.
A jacutinga (Aburria jacutinga) é uma espécie de ave frugívora de grande porte em processo de extinção devido principalmente à caça e destruição do hábitat. Endêmica da Mata Atlântica, encontra-se atualmente com distribuição bem reduzida e com populações isoladas, sendo foco de alguns programas de conservação, que visam a criação em cativeiro, para sua posterior soltura e/ou reintrodução em ambientes originais da espécie. O presente trabalho utilizou de avaliações comportamentais, em um sistema de criação pré-soltura,promoveu treinamentos visando aspectos alimentares e de reconhecimento de predador. Foram observadas 31 jacutingas e elaborado um etograma com 68 atos comportamentais, agrupados em oito categorias. Depois, realizou-se os treinamentos do tipo alimentar e antipredação. Os treinamentos alimentares visaram a avaliação da aceitação alimentar e promoção de comportamentos de forrageio. Foram oferecidos 32 itens alimentares diferentes, dos quais seis não foram aceitos. Percebeu-se uma diversificação na aceitação de itens alimentares, em especial frutos e sementes com até 20 mm, mas também folhas e flores. Já os comportamentos de forrageio observados, como captura e manipulação dos itens alimentares, são realizados somente quando a jacutinga alcança o item com seu bico. Esse pode ser o motivo das jacutingas ficarem por grandes períodos numa mesma árvore, quando localiza itens de sua alimentação. Como treinamento antipredação foram utilizados três modelos de predadores: um felino (Leopardus tigrinus), um rapinante (Pseudastur polionotus) e cão doméstico. Nestes treinamentos foram observadas oito jacutingas. Ambos os treinamentos mostraram-se positivos, apresentando respostas comportamentais de vigilância e defesa aos modelos utilizados. Também foram realizados testes de memória, onde se apresentavam os mesmos modelos as jacutingas, após 30 dias do treinamento. Os resultados dos testes de memória indicam que houve um aprendizado, resultante dos treinamentos antipredação. As jacutingas apresentaram as respostas esperadas (semelhantes às observadas nos treinamentos), quando apresentados os modelos utilizados nos treinamentos. Destaca-se a importância do trabalho desenvolvido, pois os resultados obtidos estão auxiliando no processo de reabilitação de indivíduos a serem utilizados em futuras solturas. Todo o processo desenvolvido nesse projeto está sendo utilizado experimentalmente como piloto no “Protocolo de Soltura de Jacutingas”, coordenado pela SAVE Brasil. Os treinamentos e testes aplicados visam aumentar a taxa de sobrevivência das aves utilizadas em programas de soltura, por meio de técnicas que reforcem e/ou induzamapresentação de comportamentos que expressem habilidades de sobrevivência em natureza; no caso, habilidades de forrageio e reconhecimento de predador como indicadores comportamentais para obtenção de fitness individuais.
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Silva, José Miguel Mendes Freitas. "O monumento e o lugar. Relação entre o espaço público e o monumento na intervenção patrimonial contemporânea." Master's thesis, Faculdade de Arquitectura de Lisboa, 2010. http://hdl.handle.net/10400.5/2886.
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Tese de Mestrado em Reabilitação da Arquitectura e Núcleos UrbanosO presente trabalho aborda a temática do património construído articulando o momento com o seu espaço público, particularmente a relação dos edifícios com os tecidos urbanos e paisagens onde estão inseridos, avaliando os diferentes tipos de intervenção possível e as interacções mútuas. Tem como objectivo identificar e analisar o impacto da relação monumento/lugar resultante da aplicação de processos e opções em projecto, no âmbito da reabilitação patrimonial contemporânea, cuja acção prática resultou na transformação de características de contexto, tanto das partes como do conjunto – monumento, espaço público e envolvente. O espaço público é visto como ponto de relação entre a preservação do edificado, tanto monumental como habitacional, e a aplicação de políticas económicas de desenvolvimento dos lugares, não esquecendo as iniciativas de preservação dos valores históricos intrínsecos. Este estudo permite interpretar e identificar diversas soluções em projecto, com recurso a casos específicos, explicitando conceitos e ideias casuísticas de recuperação do património edificado que de alguma maneira implicaram efeitos no espaço público e no tecido construído, organizados por categorias. São assim agrupados ‘tipos’ de intervenção, representativos das diferentes especificidades históricas e culturais de cada lugar, com sedimentação de factores de contexto que pretendem potencializar e valorizar o monumento, encontrando para cada caso uma solução própria. Complementarmente, propõe-se reconhecer o contributo metodológico interventivo do arquitecto contemporâneo, na protecção dos valores conservacionistas e na valorização do património em Portugal.
Monument and Place. The relation between public space and monument in the contemporary heritage sites intervention. This work deals with the theme of the built heritage articulating the monument with his public space in particular, the relationship between buildings and the urban fabric and landscapes where they stand, evaluating the different types of intervention and possible interactions between them. It aims to identify and analyse the impact of the relationship monument/place which results from processes and project options as part of contemporary heritage rehabilitation, which practical action resulted in the transformation of the characteristics of context, both the parts and the whole – monument, public space and environment. Public space is seen as a point of connection between the preservation of buildings, both monumental and housing, and implementation of economic policies for the development of places, not forgetting the efforts of preservation of historical values intrinsic. This study allows us to interpret and identify various solutions in design, using specific cases, concepts and ideas casuistic for recovery of the built heritage that somehow implied effects on public space and the built fabric, organized by category. Thus are grouped ‘types’ of intervention, representative of different historical and cultural particularities of each place, sedimentation of context factors that aim to enhance the monument, finding in each case a specific solution. In addition, it is proposed to recognize the methodological intervention contribution of each contemporary architect, on the protection of conservation values and perpetuating the heritage in Portugal.
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Pimenta, Vânia Amorim. "Arquiteturas revisitadas." Master's thesis, Universidade de Lisboa, Faculdade de Arquitetura, 2018. http://hdl.handle.net/10400.5/17943.
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Dissertação de Mestrado Integrado em Arquitetura, com a especialização em Interiores e Reabilitação do Edificado apresentada na Faculdade de Arquitetura da Universidade de Lisboa para obtenção do grau de Mestre.Sabendo que os locais abandonados relativos ao panorama ferroviário são uma realidade no nosso país, bem como na europa e fora dela, e por ser considerado o património devoluto em deterioração uma problemática que tem sido objeto de discussão, por interessados na sua preservação, desde a população residente na zona correspondente a esse edificado ao abandono, como também por profissionais na área da arquitetura, e ainda os municípios aos quais estão associados. O presente trabalho tem em consideração o panorama geral em Portugal, numa abordagem macro, com o objetivo de identificar através de uma levantamento tão alargado quanto possível, o património ferroviário já reabilitado para novas funções atualmente em vigor, e numa visão mais estreita/micro, incide sobre o Ramal de Cáceres, cuja desativação ocorreu em 2011, e respetivas ex-estações, atualmente reabilitadas com base num programa idêntico, “turismo rural”, mas mediante pressupostos diferentes, caso do edifício de apoio à ex-estação de Beirã e ex-estação de Castelo de Vide, aparentemente dois casos de sucesso. O primeiro exemplo um projeto de conservação e o segundo de Reabilitação, uma estratégia de reabilitação a replicar noutros locais, em favor do património, espaços de memórias, capazes de caso adaptados resistirem ao tempo.
ABSTRACT: Knowing that the abandoned places concerning the railway panorama are a reality in our country, as also in Europe and outside it; and because it is considered the deteriorating residual property a problematic that has been object of discussion, interested in its preservation, from the population residing in the zone corresponding to that built to the abandonment, as well as professionals in the area of architecture, and the municipalities to which they are associated. The present work takes into account the general panorama in Portugal, in a macro approach, with the aim of identifying through a survey as broad as possible, the railway assets already rehabilitated for new functions currently in force, and in a narrower/micro vision, focuses on the Caceres Branch, whose deactivation occurred in 2011, and its former stations, currently rehabilitated on the basis of a similar program, "rural tourism", that through different assumptions, as in the case of the building supporting for the former station of Beirã and the former station of Castelo de Vide, apparently two cases of success. The first example is a conservation project and the second is a rehabilitation case, being both a strategy to replicate elsewhere, in favor of heritage, spaces of memories, capable of adapted cases resisting time.
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Pietersen, Adrian. "A fluvial geomorphological study of river rehabilitation in the Kouga region, Eastern Cape." Thesis, Rhodes University, 2009. http://hdl.handle.net/10962/d1015228.
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The Kouga Riparian Rehabilitation Project (KRRP) is seen as a pilot rehabilitation project in the Kouga region that is heavily invaded with Acacia mearnsii along the riparian zones of many mountain streams. Clearing of these black wattles and re-planting of indigenous vegetation are imperative to rehabilitation efforts. In this context, two invaded catchments were identified - the Baviaans and the Heuningnes. The aim of this research is to characterise the effects that the woody alien invasive Acacia mearnsii has had on the river channel morphology of the Baviaans and Heuningnes Rivers. A desktop and initial field analysis of the relevant study area catchments was completed. This was followed by a comparison of the channel morphology of the various study channel reaches using fixed channel transects. Ecological resource quality objectives (RQOs) for river rehabilitation from a fluvial geomorphological viewpoint were then established. A long-term monitoring protocol to assess whether or not these RQOs will be achieved was recommended. Follow-up channel transects were measured post wattle clearance in the Baviaans and short-term (<2yrs) changes in channel form were described. Differences in terms of the effect of Acacia mearnsii on channel form were then interpreted by direct comparison and through statistical analysis. Results indicate a number of significant differences between those channels impacted by black wattle infestation and those channels seen as unimpacted and natural. Short-term changes (<2yrs) that occurred within the study period post Baviaans wattle clearance were shown to be minimal for channel form as well as for bed material. The lack of any clear relationship or explanation between channel form and other channel controls suggests vegetation as the primary control. Vegetation, specifically the invasive alien vegetation, is the key controlling variable acting on channel form in the two study catchments.
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Silva, Leandro Prezotto da. "Avaliação da atividade antimicrobiana da N,N,Ntrimetilquitosana e da quitosana comercial sobre o crescimento de bactérias gram-positivas e gram-negativas e de fungos filamentosos." Universidade Federal de São Carlos, 2014. https://repositorio.ufscar.br/handle/ufscar/7036.
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Previous issue date: 2014-04-16Many efforts have been dedicated in the searching of natural compounds which are suitable to be applied in food conservation. Among them, the chitosan has presented promising results concerning the antimicrobial activity, structural preservation and delay of fruits senescence. However, the chitosan, as found commercially, is soluble only in acidic medium solutions what is considered a hindrance for fully applications as food conservative. In this sense, chitosan derivations which are able to be solubilized in neutral pH have been developed. The N,N,N Trimethylchitosan (TMC) is one of them, characterized as a hydrosoluble derivative of chitosan, which has been considered as an efficient antimicrobial agent with positive action as fresh food conservative. The aim of the present was the evaluation of the antimicrobial activity of the TMC against Gram-positive and Gram-negative bacteria and filament fungi. The TMC antimicrobial activity was assessed by comparing with the Commercial Chitosan (CC), by means of the determination of the Minimum Inhibitory Concentration (MIC), following the Clinical and Laboratory Standards Institute (CLSI) according to M7-A6 (NCCLS, 2003) and M38-A (NCCLS, 2002) standards, both recognized by the Agência Nacional de Vigilância Sanitária (ANVISA). Additionally, the TMC and CC antifungal activity was carried out by recoding the visual fungi growth and estimated from the percentage of infected samples by the fungy on cut faces of grape-tomatoes (Solanum lycopersicum variety cerasiforme), in coated and non-coated conditions, along seven days of incubation. The results concerning antibacterial activity points to a greater action of the TMC when comparing to some analysis performed on CC coating against four of the six strains analyzed: Enterococcus faecalis, Staphylococcus aureus, Escherichia coli and Salmonella enterica. Nevetheless the CC antifungal activity was considerable superior to that observed to TMC for three different fungi tested: Penicillium sp., Aspergillus flavus standard and Aspergillus flavus wild. However, both polymers showed high antibacterial and antifungal activity and are therefore considered as natural agents with relevant antimicrobial potential for the fresh food conservation.
Muitos têm sido os esforços pela procura de substâncias naturais que possam ser aplicadas à conservação de alimentos. Dentre as substâncias em estudo, a quitosana tem apresentado resultados promissores tanto com relação à atividade antimicrobiana quanto na manutenção estrutural de alimentos e redução da senescência em frutos. No entanto, a quitosana, em sua forma comercial, é solúvel apenas em soluções ácidas diluídas, o que dificulta sua plena utilização como conservante alimentício. Dessa forma, derivados de quitosana que apresentem capacidade de solubilização em pH neutro têm sido desenvolvidos. Dentre esses derivados a N,N,N-trimetilquitosana (TMQ), um polímero hidrossolúvel derivado da quitosana, tem sido avaliado como promissor agente antimicrobiano e conservador de alimentos frescos. Assim, o presente projeto teve como objetivo avaliar a atividade antimicrobiana da N,N,N-trimetilquitosana sobre o crescimento de bactérias Gram-positivas e Gram-negativas e de fungos filamentosos. A atividade antimicrobiana da TMQ foi avaliada mediante comparação com a Quitosana Comercial (QC) pela determinação das Concentrações Inibitórias Mínimas (CIM) a partir de testes padronizados pela Clinical and Laboratory Standards Institute (CLSI), segundo suas normas M7-A6 (NCCLS, 2003) e M38-A (NCCLS, 2002), ambas reconhecidas pela Agência Nacional de Vigilância Sanitária (ANVISA). Além disso, a avaliação da atividade antifúngica das substâncias foi realizada mediante leitura visual e estimada a partir do percentual de amostras infectadas pelos fungos sobre fatias de tomatecereja (Solanum lycopersicum variedade cerasiforme) revestidas e não revestidas, ao longo de sete dias de incubação. Os resultados indicaram uma maior atividade antibacteriana da TMQ em relação à QC para quatro das seis cepas bacterianas analisadas: Enterococcus faecalis, Staphylococcus aureus, Escherichia coli e Salmonella enterica. No entanto, a atividade antifúngica da QC superou a da TMQ para os três fungos testados: Penicillium sp., Aspergillus flavus padrão e Aspergillus flavus selvagem. Entretanto, ambos os polímeros avaliados apresentaram atividade antibacteriana e antifúngica satisfatória sendo, portanto, considerados como agentes naturais com potencial antimicrobiano relevante para a conservação de alimentos frescos.
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Cowden, Craig. "Assessment of the long-term response to rehabilitation of two wetlands in KwaZulu-Natal, South Africa." Thesis, Rhodes University, 2018. http://hdl.handle.net/10962/60606.
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Assessing the outputs and outcomes of wetland rehabilitation activities is recognised by the 'Working for Wetlands' programme in South Africa as important, but to date has been limited. An assessment of the ecological outcomes and the structural outputs of the Working for Wetlands rehabilitation implemented in the Killarney and Kruisfontein wetlands, KwaZulu-Natal, in 2005 was undertaken. The assessment of outcomes included an evaluation of the changes in terms of ecological integrity and the supply of ecosystem services, using WET-Health and WET- EcoServices assessment techniques respectively, and vegetation composition. Improvements in hydrological and geomorphic integrity were recorded in both wetlands, resulting in improved ecosystem services delivery. However, investigation of vegetation composition using the Wetland Index Value and Floristic Quality Assessment Index showed that, seven years after rehabilitation, KiNamey's vegetation composition had improved, but Kruisfontein's vegetation was still largely dominated by pioneer species and appeared to be stable, but in a severely transformed state. The response of these wetlands has shown that sites for rehabilitation should be screened before work begins, and wetlands requiring intensive management of vegetation recovery should be assessed in terms of the objectives and the anticipated benefits of the project. The assessment of the outputs included an evaluation of structural integrity, survival and cost- effectiveness. Limited issues, mostly relating to deviations from the designs during construction, were identified with regards to the structural outputs at each of the wetlands. However, the spreader canals at both Killarney and Kruisfontein wetlands were not functioning as intended and concentrated flows from the spreader canals were evident in both wetlands. The use of spreader canals should therefore be carefully planned and implemented for future wetland rehabilitation projects. Consideration of ZAR per hectare equivalent re-instated/secured provided a useful initial means of determining the cost-effectiveness of the wetland rehabilitation. However, additional factors need to be considered, such as, the nature of the rehabilitation activities, the type and size of the problem being addressed, rehabilitation of priority wetlands, limitations imposed by funders, and risks that need to be addressed by the rehabilitation strategy. Furthermore, the evaluation of the Killarney and Kruisfontein wetlands highlighted the need to revise the Water Research Commission's Wetland Management Series, especially those documents or guidelines relating to rehabilitation planning (WET-RehabPlan), interventions (WET-RehabMethods), and monitoring and evaluation (WET-RehabEvaluate).
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Martins, Patricia Fidalgo. "Património e identidade." Master's thesis, Univeridade de Lisboa, Faculdade de Arquitetura, 2017. http://hdl.handle.net/10400.5/13943.
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Aljane, Nabil. "La Fabrique du patrimoine des médinas en Tunisie : politiques et pratiques dans la ville de Sfax." Thesis, Montpellier 3, 2019. http://www.theses.fr/2019MON30074.
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L'objectif de cette thèse est d'évaluer la mise en œuvre locale des politiques de sauvegarde du patrimoine urbain des médinas en Tunisie. Nous interrogerons ces politiques à travers leurs rôles au niveau du territoire et d'appréhender leurs effets sur les centres historiques. Notre approche consiste à une comparaison, à l'application locale des politiques de sauvegarde, à travers des cas des projets de réhabilitation et de sauvegarde menés dans des médinas tunisiennes. Nous retraçons la naissance des ces instruments publiques jusqu'à sa mise en œuvre par les divers acteurs et nous les confronterons aux réalités locales. Nous finissons par un état du lieu de l'implication de la dimension sociale dans les projets de sauvegardeThe objective of this thesis is to evaluate the local implementation of the safeguard policies of urban heritage medina in Tunisia. We will question these policies through their roles in the territory and to understand their effects on historic centers. Our approach consists in a comparison to the local application of safeguard policies, through case rehabilitation projects and backup done in Tunisian Medinas. We trace the birth of these public instruments to its implementation by the various actors and we confront local realities. We finally state the place of the involvement of the social dimension in safeguarding projects