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1
Everett, Derrick Lashawn. "LYSINE AND THREONINE RESPONSES IN ROSS X ROSS TP16 MALE BROILERS". MSSTATE, 2009. http://sun.library.msstate.edu/ETD-db/theses/available/etd-03272009-114855/.
Testo completoAbstract (sommario):
The purpose of this study was to evaluate the Lys and Thr responses of TP-16 male broilers. Experiment 1 (14-28 d of age) showed no significant live performance effects. In Experiment 2, Lys and Thr (P=0.021) interacted to affect 28 to 42 d body weight gain and (P=0.004) feed intake. Lys main effects improved body weight gain (P=0.002), and feed conversion (P=0.009). Thr fed at the 0.68% level improved body weight gain and feed conversion. Mortality did not differ among treatments and averaged 0.09% across all treatments. The study indicated the sensitivity of the Thr:Lys ratio when broilers are fed diets containing marginal Lys. Although Thr X Lys interactions occurred in this study, the Lys levels in the test diets may have been too high for determining a ratio to an amino acid in a factorial study. Interaction results indicate that the Thr:Lys ratio in broilers from 28 to 42 days of age is between 0.57 to 0.68.
2
Minner, Ina E. "Ewig ein Fremder im fremden Lande : Ludwig Ross (1806 - 1859) und Griechenland ; Biographie /". Mannheim [u.a.] : Bibliopolis, 2006. http://www.loc.gov/catdir/toc/fy0701/2006421016.html.
Testo completo
3
Caudill, Ross Steven. "Ross Caudill MFA Sculpture 2006". VCU Scholars Compass, 2006. http://scholarscompass.vcu.edu/etd/1407.
Testo completoAbstract (sommario):
This thesis overviews my experience during graduate school making tangible,object oriented sculpture. I have been working formally to compose space in a way that develops a narrative between parts. The work is also a bridge between the fields of painting and sculpture, in terms of drawing with form and both painted and local, material color. My palette has mostly consisted of bronze casting, steel fabrication, fiberglass and epoxy resin, paint, the found object, woodworking, and mold making. This work is also conceptually based in showing the hand worked qualities of the materials, the transfer of meaning through casting, and my emotional relationship with the various parts of the sculptures. The three major themes of the work are: divine love and the complex of the apocalypse, the complexities and psychology concerning the relationship between a man and a woman, and the intrigue, potential energy, and beauty of the systems mankind hasinvented to harness the atom. The major artistic influences for this body of work have been: Jasper Johns, Marcel Duchamp, Constantine Brancusi, Alberto Giacommetti, Reg Butler, Henry Moore, Lynn Chadwick, Kenneth Armitage, Jeff Koons, Terry Winters, William DeKooning, Richard Diebenkorn, David Smith and Charles Long. I retain a strongrelationship with the movements of Dada, Surrealism, Futurism, and Assemblage, and amalso currently involved in solidifying the Manifesto of Raubeaux with a small group ofesteemed colleagues.
4
Coggins, Jack. "Studies of the meteorology and climatology of Ross Island and the Ross Ice Shelf, Antarctica". Thesis, University of Canterbury. Physics and Astronomy, 2013. http://hdl.handle.net/10092/8653.
Testo completoAbstract (sommario):
This thesis documents a series of studies performed on the lower atmosphere over the region of the Ross Ice Shelf, Antarctica, and its surroundings. In particular, much of the thesis focuses on the area in the vicinity of Ross Island, a mountainous protrusion in the far north-west of the permanent floating ice shelf. Weather in both the smaller and larger regions is naturally complex and generated by a range of localised and larger scale interactions.
In order to better understand the meteorology of the Ross Ice Shelf, including Ross Island, we produce a synoptic climatology of the region based on surface wind output provided by the ERA Interim reanalysis. Output is taken from 1979 to 2011 and thus represents a much longer time scale than covered by previous studies of Ross Ice Shelf winds. The climatology is generated through a clustering routine based on the widely-used $k$-means technique. The results of the routine are discussed and we find that the reanalysis is capable of representing the previously reported features of the region. Cluster composites are also shown to be coherent between reanalysis output and data collected by in situ monitoring devices. We confirm that the Ross Ice Shelf Air Stream (RAS), a jet of fast-moving air that propagates from the Siple Coast across the ice shelf, is a robust feature of the climatology of the region and we find that it has a large impact on the surface temperature. The analysis is continued with reference to two widely studied modes of internal variability, the Southern Annular Mode (SAM) and El Nino-Southern Oscillation (ENSO), which are known to affect local conditions in the Ross Sea region via modulation of the Amundsen-Bellingshausen Sea low. Reanalysis output and results from the clustering routine allow us to examine the impacts of these modes upon the Ross Ice Shelf and Ross Sea in unprecedented detail. Further, we are able to tie changes in the mean pattern to variability within and between particular clusters, allowing us to ascertain the dominant synoptic patterns in forcing the mean variability. The impact on surface temperatures for both modes is found to be high and significant, which we explain with reference to changes in circulation patterns.
We further use the results of the clustering algorithm to explore the climatology of the region surrounding Ross Island. By producing composites of local in situ records based on the clustering technique described previously, we are able to generate a climatology of the region that is not hampered by gaps in the observational record. We find that the climate of Ross Island is sensitive to RAS events, due to the ability of strong flows to dramatically increase the temperature. At Scott Base, on the southern tip of the Hut Point Peninsula, the temperature is found to be particularly sensitive to these events. McMurdo Station, which is located less than 3 km away, is observed to be much less sensitive, due to the modulation of synoptic flows by localised topographic influences. Particularly salient is the difference in temperature trends between these two locations, which we show to be statistically significant in the annual and seasonal means from 1979 onwards. By applying a novel temperature reconstruction technique based on the output of the clustering routine, we are able to assess the contribution of changes in circulation to temperature trends at these two locations. We conclude that a large amount of the change in temperature at Scott Base can be explained through circulatory variability over the Ross Ice Shelf. However, the trend at McMurdo Station can not be explained using this technique and may be the result of extremely localised forcing.
Data availability in Antarctica is widely known to be low, due to the relative sparsity of observations and ongoing problems with data collection due to extremely inhospitable conditions and challenging logistical considerations. The lack of data at the mesoscale has hampered the understanding of localised processes in the Antarctic atmosphere that may be important for forecasting. Through the development and deployment of a distributed system of atmospheric sensors called
5
Tozzi, Sasha. "Photobiological studies of Ross Sea phytoplankton". W&M ScholarWorks, 2010. https://scholarworks.wm.edu/etd/1539616879.
Testo completoAbstract (sommario):
The Ross Sea polynya is characterized by high spatial and temporal variability and by an annual cycle of sea ice retreat, water column stratification, large phytoplankton blooms, and months of complete darkness. This region is also highly susceptible to increasingly changing climatic conditions that will significantly affect the hydrography, iron supply, primary production patterns and carbon cycling. This project focused on analyzing how differences in photosynthetic traits between the two major bloom-forming functional groups in the polynya, diatoms and the prymnesiophyte Phaeocystis antarctica, and investigate if these differences can explain their dominance and succession. The study was conducted as part of the Controls on Ross Sea Algal Community Structure (CORSAC) program during two cruises in December 2005-January, 2006, and November-December, 2006. A fast repetition rate fluorometer (FRRF) was used to assess photochemical efficiency on natural phytoplankton assemblages and on monoclonal cultures. Measurements were made on cultures to determinate differences in photorecovery kinetics, as well on a suite of experiments performed to test the effects of temperature, iron, CO2 and micronutrients had on natural assemblages. In addition, FRRF measurements were made on 1,182 discrete samples representative of 98 profiles collected over the two cruises. Phaeocystis antarctica consistently photorecovered faster than the diatoms Pseudo-nitzschia sp., indicating different photosynthetic strategies and ecological niches; in addition, temperature and iron significantly promoted photosynthetic quantum yields, indicating a diffuse iron limitation of the natural assemblages used for the experiments and a high susceptibility to forecasted temperature increases in the region. Experiments also demonstrated that the Ross Sea phytoplankton is capable of maintaining high photosynthetic capacity after extensive periods in the dark. The dominance and successions in the blooms appears to be controlled by a combination of hydrography and in particular by the relative depths of the mixed layer and euphotic zone, as well by the water temperatures and possibly by iron concentrations. Diatom-dominated blooms were found in shallow mixed water layers characterized by higher temperature and fresher waters in the summer in the western part of the polynya, while Phaeocystis antarctica prevailed in colder regions with deeper mixed layer depths in the eastern part of the polynya. The dominance in the bloom significantly affected the relative macronutrient drawdown. Photosynthetic characteristic of natural assemblages were also modeled based on variable fluorescence rapid light curves (RLCs), and photophysiological differences were found between diatoms and Phaeocystis antarctica, with the latter having higher Ek and lower functional absorption cross sections (sigmaPSII) and alpha values, but similar maximum electron transport rates (ETRs). Lastly, correlation between RLC-based modeled photosynthetic rates and 14C based primary production presented some discrepancies due to limitations and differences in methodologies.
6
Andaku, Juliana Almenara. "Análise jurídica da teoria de Alf Ross". Pontifícia Universidade Católica de São Paulo, 2005. https://tede2.pucsp.br/handle/handle/6394.
Testo completoAbstract (sommario):
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This paper analyzes Alf Ross´s thought (1899 1979), based in some of his works, specially the articles published in the book celebrating the centenary of his birthday, as well as the influence he suffered from Hägerström, Lundstedt and Olivecrona, also trying to study his work in the historical period which he had lived. The main idea of this paper is to study the law concept in Alf Ross´s thought. In some cases, it will be the way law is expressed and studied in Alf Ross´s works and how this subject is analyzed in his books and articles, trying to see if there were changes in the way he treated this subject in time and which were the influences he suffered this period (doctrinarian, historical or personal). In the first chapter we analyze the historical period he has lived and the changes that happened in his personal and professional life, to understand the way his thought was influenced by these facts. In the second chapter, we turn back to the sources of Alf Ross´s thought, studying the three Swedish jurists that preceded him in the Scandinavian Realism theory. In the third chapter, we make a bibliographic revision of Ross´s works, emphasizing his works in Danish. The objective of this research is to deep our knowledge of Alf Ross´s works, presented in his books and articles, some of them unpublished in Brazil. This paper tries to recover the essence of Alf Ross´s thought, analyzing thoroughly his works, as well as the doctrinarian and personal influences, to make possible to draw the largest prospect of his works.
O presente trabalho em filosofia do direito busca analisar o pensamento de Alf Ross (1899 1979), baseando-se na análise de algumas de suas obras, em especial os artigos compilados no livro em comemoração aos 100 anos de nascimento do autor, bem como a influência exercida por Hägerström, Lundstedt e Olivecrona em seu pensamento e buscando também enquadrar sua obra no contexto histórico em que viveu. A idéia principal do trabalho é o estudo do próprio conceito de Direito, em alguns casos, da maneira como o Direito se manifesta e é estudado na obra de Alf Ross e como esse assunto é tratado nos diferentes livros e artigos lidos, analisando eventuais mudanças de posicionamento ou tratamento do tema no decorrer do tempo e quais as influências sofridas nestes períodos (doutrinárias, históricas ou pessoais). No primeiro capítulo, analisa-se o período histórico em que Alf Ross viveu e as mudanças ocorridas na sua vida pessoal e profissional, para que se compreenda até que ponto seu pensamento foi influenciado por estes fatos. No segundo capítulo, volta-se às origens do pensamento de Alf Ross, com o estudo dos três juristas suecos que o precederam na corrente do Realismo Escandinavo, Axel Hägerström, Vilheim Lundstedt e Karl Olivecrona. Já no terceiro capítulo, faz-se um revisão bibliográfica das obras de Ross, com ênfase em suas obras originais em dinamarquês. O objetivo desta pesquisa é realizar um estudo aprofundado dos trabalhos de Alf Ross, representados por seus livros e artigos, alguns inéditos no Brasil. A dissertação busca resgatar a essência do pensamento de Alf Ross, com a análise exaustiva de suas obras, além do estudo de suas influências doutrinárias e pessoais, para que seja possível traçar um panorama o mais amplo possível de seus trabalhos.
7
Tonelli, Marcos Henrique Maruch. "Investigação numérica das massas de água do Mar de Ross usando o Regional Ocean Modeling System - ROMS". Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/21/21135/tde-21012015-090549/.
Testo completoAbstract (sommario):
A formação de águas profundas na Antártica afeta diretamente o clima global, uma vez que este processo conecta os ramos superior e inferior da circulação termohalina global (MOC). Avaliar os impactos das mudanças climáticas nestes processos é importante para compreensão do transporte global de calor pelos oceanos e para realização de projeções climáticas. Aplicando a forçante interanual Coordinated Ocean-Ice Reference (CORE), foi realizada uma simulação de 60 anos (1948-2007) utilizando o ROMS com módulos de gelo marinho e plataforma de gelo ativos. Uma rodada preliminar de 100 anos foi realizada com forçante do ano normal CORE, para gerar campos estáveis de inicialização da rodada interanual. Para ambos os experimentos adotou-se uma grade circumpolar periódica com resolução variável, alcançando cerca de 5 km na borda sul. Para investigar as massas de água foi aplicada a Análise Multiparamétrica Ótima - OMP. As principais massas de água do Mar de Ross foram identificadas: Água de Superfície Antártica (AASW), Água Circumpolar Profunda (CDW), Água de Fundo Antártica (AABW) e Água de Plataforma (SW), posteriormente separadas em Água da Plataforma de Gelo (ISW) e Água de Plataforma de Alta Salinidade (HSSW). Os resultados são consistentes com observações prévias (Bergamasco, 2002; Orsi & Wiederwohl, 2009; Budillon, 2011). A simulação interanual sugere que o Oceano Austral vem sofrendo um processo de aquecimento e diminuição de salinidade. Houve um aumento do calor advectado pela CDW e uma diminuição da salinidade das águas de plataforma e da AABW, consistente com as observações de Johnson & Doney (2006). A capacidade do modelo regional ROMS de reproduzir as águas de plataforma ISW, HSSW e a AABW é uma importante contribuição para estudos climáticos, visto que os modelos globais não conseguem representar tais processos. A inclusão de parametrizações explícitas dos processos de gelo marinho e plataforma de gelo capacita o ROMS para reproduzir os processos associados a criosfera, possibilitando a obtenção de projeções mais realísticas.Dense water formation around Antarctica is recognized as a significant process that significantly impacts the global climate, since that\'s where the linkage between the upper and lower limbs of Global Thermohaline Circulation takes place. Assessing whether these processes may be affected by rapid climate changes and all the eventual feedbacks is crucial to fully understand the ocean heat transport and to provide quality future climate projections. Applying the Coordinated Ocean-Ice Reference (CORE) interannual forcing we have run a 50-year simulation (1948-2007) using ROMS with a new sea ice/ice shelf thermodynamics module. Another 100-year simulation forced with CORE normal year was previously run to provide stable starting fields. The normal year consists of single annual cycle of all the data that are representative of climatological conditions over decades and can be applied repeatedly for as many years of model integration as necessary. The 60-year forcing has interannually varying data from 1948 to 2007, which allows validation of model output with ocean observations. Both experiments employed a periodic circumpolar variable resolution grid reaching less than 5 km at the southern border. By applying the OMP water masses separating scheme, we were able to identify the main Ross Sea water masses: Antarctic Surface Water (AASW), Circumpolar Deep Water (CDW), Antarctic Bottom Water (AABW) and Shelf Water (SW), further separated into Ice Shelf Water (ISW) and High Salinity Shelf Water (HSSW). Results are consistent with previous observational studies (Bergamasco, 2002; Orsi & Wiederwohl, 2009; Budillon, 2011). The interannual simulation indicates that the Southern Ocean is becoming warmer and less salty. The CDW poleward heat transport increased while shelf waters salinity as well as the AABW salinity decreased during the simulation period, consistent with Johnson & Doney (2006), who have reported the export of less dense AABW. ROMS capability to represent ISW, HSSW and AABW is an important contribution to climate studies, since IPCC class models seem unable to provide reliable representations of such important processes, which may lead to projections of more realistic scenarios. This is significantly improved in this study by including more explicit sea ice/ice shelf parameretization. ROMS is able to reproduce cryosphere-linked mechanisms of dense water formation around Antarctica.
8
Fredriksson, Teodor. "Fokker Planck for the Cox-Ingersoll-Ross Model". Thesis, Uppsala universitet, Tillämpad matematik och statistik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-331149.
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Oosterman, Allison. "Malcolm Ross: from the peaks to the trenches". AUT University, 2008. http://hdl.handle.net/10292/979.
Testo completoAbstract (sommario):
In April 1915 a journalist named Malcolm Ross was appointed New Zealand’s official war correspondent to cover the actions of the country’s troops wherever they might be fighting during World War I. Few today appear to have heard of this man so the task of this research was to discover who he was, why he was chosen and how effective he was as a correspondent. The fact he had not been remembered hinted at two possibilities; the first was that as little attention has been given to New Zealand’s media history so he had become one of the forgotten and just awaited some eager historian to rediscover him or, secondly, he had been forgotten because he had not left a lasting legacy or tradition worthy of remembrance. It was a conundrum waiting to be solved and that was the purpose of the research. What was uncovered was a man, born of Scottish working class parents who by 52, when he was selected as official war correspondent, had reached what appeared to be the pinnacle of his career. He was successful, both financially and socially. He had been an exceptional mountaineer and sportsman. His journalism and photographic skills had made him one of the leading journalists of his day. Few were surprised when he was appointed as the country’s first official war correspondent. It is the contention of this thesis that from the time of his appointment, Ross’s reputation and status eroded to the extent that his final years after the war appeared to have been spent in relative obscurity. The reason for this will be explored and largely hinges on the almost overwhelming criticism Ross received for his efforts as war correspondent. A major part of the research was devoted to determining whether this criticism was fair and whether Ross warranted elevation into the ranks of the undeserved forgotten of our country’s media heroes.
10
Biggs, Malcolm John. "Alexander Ross (1590-1654) : anachronistic reactionary or realist?" Thesis, University of Hertfordshire, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391366.
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Rulli, Nestor Ezequiel. "Ross River virus infection : mechanisms and potential treatment /". full text available via ADT, 2007. http://erl.canberra.edu.au/public/adt-AUC20080227.091948/index.html.
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Mosby, Anna Ford. "Phytoplankton Growth Rates in the Ross Sea, Antarctica". W&M ScholarWorks, 2013. https://scholarworks.wm.edu/etd/1539617935.
Testo completoAbstract (sommario):
The Ross Sea is a highly productive region of the Southern Ocean characterized by spatially variable distribution of phytoplankton, primarily Phaeocystis antarctica, but phytoplankton growth rates in the region have not been thoroughly investigated. Variability in growth rates was investigated from January to February 2012 on a cruise to the Ross Sea using two methods: 14C-isotopic tracer incubations and dilution experiments. Because all methods of measuring growth rates may not be appropriate in all systems due to errors inherent to each method, I assessed and compared the two methods for possible sources of error by examining the effect of extended incubations on measured growth rates in 14C-incubations, quantifying phytoplankton growth and grazing mortality rates through dilution experiments, and analyzing the effect of irradiance in incubations on carbon:chlorophyll ratios in dilution experiments. I found that dilution experiments yielded variable growth rates based on chlorophyll and cell abundance; the mean growth rate based on chlorophyll was 0.11 d-1 while mean growth rate based on abundance was 0.12 d-1. Chlorophyll-based growth rates may be inaccurate due to carbon:chlorophyll ratios of phytoplankton changing during incubations. This unbalanced growth is likely due to variable mixed layer depth and subsequent variability in light history of phytoplankton. Grazing mortality rates were non-significant in 7 of the 11 dilution experiments conducted and significant mortality rates were low with a mean mortality rate of 0.09 d-1, most likely because of low temperatures rather than the presence of P. antarctica. Growth rates measured in 14C-incubations did not change in extended incubations, indicating that loss of fixed 14C through grazing and respiration was not a major source of error. Growth rates were below those predicted based on temperature alone (p<0.001), and mean growth rate in 14C-incubations was 0.14 d-1. Structural equation modeling indicated that growth rates in 14C-incubations did not strongly vary with mixed layer depth, but were significantly affected by low iron concentrations, most likely due to the seasonal depletion of iron. As grazing is low and physical conditions vary spatially, dilution experiments may not be an appropriate measure of growth rate in the Ross Sea, but 14C-incubations yield relatively low growth rates that are significantly affected by low iron concentrations in the region.#
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Mangin, Michael. "Freemen in theory : race, society and politics in Ross County Ohio, 1796-1850 /". Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2002. http://wwwlib.umi.com/cr/ucsd/fullcit?p3071010.
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Johnson, Helen. "Frederick Leith-Ross : the career of an economic diplomat". Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.530041.
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Rulli, Nestor Ezequiel, e na. "Ross River Virus Infection: Disease Mechanisms and Potential Treatment". University of Canberra. School of Health Sciences, 2007. http://erl.canberra.edu.au./public/adt-AUC20080227.091948.
Testo completoAbstract (sommario):
Ross River virus (RRV) is a mosquito-borne alphavirus and the aetiological agent of
epidemic polyarthritis (EPA). Arthropod borne-Alphaviruses that are related to RRV,
such as Chikungunya virus, Sindbis virus and Barmah Forest virus, are usually
associated with epidemics of infectious arthritides in different parts of the world. In
humans, RRV-induced disease symptoms include fever, rash, myalgia and pain and
stiffness of the joints. Muscle and joint pain are the most debilitating symptoms in RRV
patients and the best treatment available is non-steroidal anti-inflammatory drugs
(NSAID). Previous studies in mice have demonstrated that RRV infection results in
inflammation of skeletal muscle and joints and that macrophages play a primary role in
disease.
The present study was carried out to further elucidate the underlying mechanisms
mediating RRV-induced muscle and joint pathology. Previous studies have reported
that encephalitic alphaviruses trigger apoptosis of brain cells in mice and that blocking
apoptosis reduces mortality rates. In the present study, the ability of RRV to induce
muscle apoptosis was investigated in vitro, using a murine myoblast cell line (C1C12),
and in vivo, using a mouse model of RRV disease. RRV-infected C1C12 myofibres
displayed an array of morphological and biochemical makers of apoptosis. Apoptosis
was also observed in the skeletal muscle of RRV-infected C57BL/6J mice. Blocking
apoptosis by general caspase inhibition resulted in milder disease symptoms, reduced
myofibre damage and decreased inflammation of muscle and joint tissues. The total
number of cell infiltrates as well as the number of macrophages infiltrating muscle was
significantly reduced by the treatment with a caspase inhibitor.
The effects of RRV infection on the skeletal system were also investigated. Primary
human osteoblast cells were infected with RRV and monitored for viral-induced
cytopathic effect. Osteoblasts supported rapid virus growth and, by 48 hours after
infection, succumbed to viral-induced necrosis. In addition, histological examination of
bone tissue from RRV-infected C57BL/6J mice showed clear evidence of bone
resorption. Tibias from infected mice showed an increased number of activated
osteoclasts, a reduction in bone density and thinning of cortical bone.
The expression of host factors involved in inflammatory responses and bone
remodelling was studied in RRV-infected myofibres and osteoblast cell cultures and in
the muscle and joint tissues from infected mice. RRV-infected muscle cells and tissue
showed elevated mRNA levels for the chemokines CCL-2, CCL3, CCL5 and CXCL1,
all of which are known to mediate the migration of monocytic cells. With the exception
of CXCL1, these chemokines were also found to be up-regulated in RRV-infected
osteoblast cultures and in joint tissues from infected mice. Muscle and joint tissue from
infected mice also showed elevated mRNA levels for type I and type II interferons,
TNF- and NOS2. In addition, joint tissues from infected animals contained high levels
of IL-6 and IL-1, two cytokines known to mediate bone remodelling.
Finally, the therapeutic potential of the drug bindarit was investigated using the mouse
model of RRV disease. Bindarit is a known inhibitor of CCL-2 and TNF- and has
been found to prevent protein denaturation. Treatment with bindarit resulted in mice
developing milder disease symptoms, reduced muscle damage and decreased
inflammation of muscle and joint tissues. In particular, bindarit significantly reduced
macrophage infiltration into skeletal muscle tissue.
This thesis has contributed to the understanding of RRV pathogenesis. It has identified
novel mechanisms of RRV-induced muscle and bone pathology and provided further
evidence that associate pro-inflammatory host factors to RRV disease. This work has
also demonstrated that bindarit should be considered as a candidate for treating RRV
disease in humans.
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Shields, Amy Rebecca. "Biogeochemistry and phytoplankton dynamics in the Ross Sea, Antarctica". W&M ScholarWorks, 2007. http://web.vims.edu/library/Theses/Shields07.pdf.
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Choi, Yoon-Hong. "The mathematical modelling of the Ross River Virus transmission". Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 1997. https://ro.ecu.edu.au/theses/896.
Testo completoAbstract (sommario):
Ross River virus is one of the most severe communicable diseases in Australia. During the 1995/96 outbreak of Ross River virus in south-western Australia, over 1 ,300 human cases were reported. Since the symptoms of the disease are sometimes too weak to be diagnosed, it is important to determine the number of humans who actually contracted the virus during outbreaks. To do this, several mathematical models with different hypotheses are constructed and analysed mathematically. The threshold mathematical conditions of these models suggest that as well as the size of the vector mosquito population, the population size and length of viraemia periods; of host populations and the infection rates between the hosts and vectors play the main roles in the transmission. Several parameters in the transmission are currently unknown, so only simple models of RRV transmission are computer-simulated. Some of the unknown parameters are extrapolated from published studies of other arboviruses. The sensitivities of the models to some of the unknown parameters are also examined. Simulation results indicate the sero-conversion rates and ratios of clinical to subclinical human infections during the outbreaks which occurred in the Peel and Leschenault districts in Southwestern Australia.
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Bragato, Deborah <1973>. "Oceanographic processes in proximity of the ross ice shelf". Doctoral thesis, Università Ca' Foscari Venezia, 2005. http://hdl.handle.net/10579/500.
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Stover, Christina Lee. "A new account of Ross Sea waters: characteristics, volumetrics, and variability". Texas A&M University, 2003. http://hdl.handle.net/1969.1/5778.
Testo completoAbstract (sommario):
A new high-resolution climatology and volumetric ø-S census (ÃÂø = 0.1ðC, ÃÂS =
0.01) is constructed for the Ross Sea. Property maps (potential temperature, salinity, and
dissolved oxygen) along 40 depth levels and 21 neutral density (ón) surfaces are
analyzed.
A major inflow of Antarctic Surface Water (AASW) is observed branching off
the westward-flowing coastal current near Cape Colbeck. One portion continues
poleward hugging the coast while the other follows the shelf break to the west. The
characteristic âÂÂVâ shape of the Antarctic Slope Front over the western Ross Sea is
indicated by a narrow stream of thickened AASW. The entire AASW layer shoals from
east to west.
Two major shoreward inflows of Lower Circumpolar Deep Water (LCDW) are
inferred. A warm and salty tongue from the Balleny Gyre enters the Drygalski and
Joides troughs. A similar tongue is exported from the Ross Gyre and enters the Glomar
Challenger Trough. No significant LCDW inflow is observed over the eastern slope of
the Ross Sea.
The thickest outflows of Shelf Water (SW: ø ⤠-1.85ðC, S > 34.5) and new
Antarctic Bottom Water (AABW: ø > -1.85ðC, ón > 28.27 kg m-3) are found along the
Drygalski and Joides troughs. Their saltiest (S > 34.7) components are concentrated in
the western Ross Sea, whereas the low-salinity varieties are found throughout the Ross
Sea shelf.
The most voluminous water mass in the Ross Sea is LCDW. The least abundant
is AABW found primarily over the western slope. Modified CDW (MCDW) in the
western Ross is inferred to be a mixture of 30% AASW and 70% LCDW; whereas
central (eastern) MCDW is 40% (60%) AASW and 60% (40%) LCDW. The same water mass composition is inferred for new AABW in the western and central Ross Sea: 25%
SW and 75% MCDW.
A 40-year freshening trend is detected at different sites along the coastal transit
of AASW from Cape Colbeck to Ross Island. In addition to a freshening, the MCDW
and high-salinity SW also reveal a cooling trend. Conversely, a warming and
salinification is indicated at the main inflows of LCDW.
20
Prow, Natalie A. "Epidemiology of Ross River virus in the south-west of Western Australia and an assessment of genotype involvement in Ross River virus pathogenesis". University of Western Australia. Microbiology and Immunology Discipline Group, 2006. http://theses.library.uwa.edu.au/adt-WU2006.0132.
Testo completoAbstract (sommario):
[Truncated abstract] Ross River virus (RRV) causes the most common arboviral disease in Australia, with approximately 5000 new cases reported each year, making this virus a major public health concern. The aim of this thesis was to link results from virological, pathogenesis and epidemiological studies to further define RRV disease in the south-west (SW) of Western Australia (WA), a region of endemic and epizootic RRV activity. A crosssectional seroprevalence study was used to show that 7.8 percent of SW communities were seropositive to RRV, comparable to other regions of Australia with similar temperate climates to the SW . . . RRV-specific IgM antibodies were found to persist for at least two years following RRV infection. A murine model was used to conclusively show differences in pathogenesis between RRV genotypes, the SW and northern-eastern (NE) genotypes, which are known to circulate throughout Australia. The SW genotype, unique to the SW of WA induced only poor neutralising antibody production and nonneutralising antibodies after the acute phase of infection. In comparison, the NE genotype which currently predominates in mosquito populations in the SW of WA, induced the most efficient neutralising antibody response and consequently produced the mildest disease in the mouse. These data in the mouse suggest that the infecting genotype will mostly likely influence disease outcome in humans and could at least partially explain why more severe and persistent disease has been reported from the SW of WA. Collectively, results from this thesis provide an important benchmark against which future investigations into BFV and RRV diseases can be measured.
21
Ross, Kyle Gene. "Distributed amplifier circuit design using a commercial CMOS process technology". Thesis, Montana State University, 2006. http://etd.lib.montana.edu/etd/2006/ross/RossK0806.pdf.
Testo completo
22
Charitos, Efstratios I. "Autograft reinforcement to preserve autograft function after the Ross procedure". Lübeck Zentrale Hochschulbibliothek Lübeck, 2010. http://d-nb.info/1002838002/34.
Testo completo
23
Locarnini, Ricardo A. "Water masses and circulation in the Ross Gyre and environs". [College Station, Texas] : Texas A & M University, Office of Graduate Studies, 1994. http://catalog.hathitrust.org/api/volumes/oclc/33311210.html.
Testo completo
24
Pereira, Gustavo Jorge [UNESP]. "Estudo do modelo de Ronald Ross sobre prevenção da malária". Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/91148.
Testo completoAbstract (sommario):
Made available in DSpace on 2014-06-11T19:24:55Z (GMT). No. of bitstreams: 0
Previous issue date: 2010-07-01Bitstream added on 2014-06-13T19:47:16Z : No. of bitstreams: 1
pereira_gj_me_rcla.pdf: 459083 bytes, checksum: 3845c68530aed83ffa2e07f2437b7007 (MD5)Universidade Estadual Paulista (UNESP)
Neste trabalho apresentamos um estudo qualitativo do modelo feito por Ronald Ross sobre a propagação da malária em uma comunidade. O modelo encontra-se no artigo “Contribution to the Analysis of Malaria Epidemiology” de Alfred J. Lotka [1] e é dado por um sistema não linear de duas equações diferenciais ordinárias
In this work we present a qualitative study of the model developed by Ronald Ross about the propagation of malaria in a community. The model is presented by the article “Contribution to the Analysis of Malaria Epidemiology” of Alfred J. Lotka [1] and it is given by a nonlinear system of two ordinary differential equations
25
Zaid, Ali, e n/a. "IMMUNE EVASION AND DISEASE MECHANISMS IN ROSS RIVER VIRUS INFECTION". University of Canberra. Biomedical Sciences, 2008. http://erl.canberra.edu.au./public/adt-AUC20091216.122508.
Testo completoAbstract (sommario):
Ross River virus (RRV) is an Alphavirus distributed throughout Australia. It is transmitted by
mosquitoes and is known to cause moderate to severe disease symptoms in humans. Along with
other alphaviruses such as Sindbis virus and Chikungunya virus, RRV is known to cause arthritic
symptoms, characterised by muscle and joint inflammation. Several investigations have established
the role of macrophage cells and pro-inflammatory host factors in the development of RRV-induced
disease.
In this study, we attempted to determine differences between RRV passaged in mammalian and
mosquito cells. There is strong evidence that arthropod-borne viruses are able to display enhanced
infectivity when passaged into arthropod cell line. We showed that mosquito cell-derived RRV
(mos-RRV) was able to replicate to higher titres than mammalian cell-derived RRV. We also
showed that mos-RRV failed to induce Type I IFN-associated antiviral responses.
The second aim of this study was to investigate the role of TNF-ᬠa pro-inflammatory cytokine
implicated in arthritic diseases, in the development of RRV disease. We treated RRV-infected
C57BL/6J mice with a commercially available TNF-ᠩnhibitor drug and monitored disease signs.
We found that the TNF-ᠩnhibitor does not ameliorate RRV disease (RRVD) symptoms, and that it
does not prevent muscle and joint inflammation. We analysed histological sections of muscle and
joint tissue of Enbrel-treated and untreated, RRV-infected cells. We also determined and compared
host cytokine expression profiles.
Finally, we sought to determine the requirement for natural killer (NK) cells in RRV disease. NK
cells have been detected in the synovium of RRV-infected patients since early studies, but their role
in disease pathogenesis remains unclear. Using a NK-dysfunctional mouse (C57BL/6J-Lystbg), we
showed that mice lacking a functional NK system are more susceptible to RRV disease than wildtype,
C57BL/6J mice. We monitored disease symptoms following RRV infection and assessed
muscle and joint inflammation in Lystbg and C57BL/6J mice.
This thesis examines mechanisms of viral infection and immune evasion employed by RRV, as well
as into the role of host cells and cytokines in RRVD pathogenesis disease mechanisms. We showed
that a functional NK cell system is required for the regulation of RRV-induced muscle and joint
inflammation. Our characterisation of the use of a commercial TNF-ᠩnhibitor in RRV-induced
disease in mice may provide information on the role of TNF-ᠩn viral arthritis, and may help
towards developing safe and effective treatment.
26
Plemmons, William. "A MATHEMATICAL STUDY OF MALARIA MODELS OF ROSS AND NGWA". Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2361.
Testo completoAbstract (sommario):
Malaria is a vector borne disease that has been plaguing mankind since before recorded history. The disease is carried by three subspecies of mosquitoes Anopheles gambiae, Anopheles arabiensis and Anopheles funestu. These mosquitoes carry one of four type of Plasmodium specifically: P. falciparum, P. vivax, P. malariae or P. ovale. The disease is a killer; the World Health Organization (WHO) estimates that about 40% of the world's total populations live in areas where malaria is an endemic disease and as global warming occurs, endemic malaria will spread to more areas. The malaria parasite kills a child every 30 seconds. In Africa alone, as many as one million children die annually from malaria before they reach the age of 5. The World Health Organization has an estimate of 100-200 million victims annually. Malaria has many mathematical models and this paper will examine several different models in order to achieve a greater understanding of this disease.M.S.
Department of Mathematics
Sciences
Mathematics
27
Grigor, Isobel K. "Local authority accommodation of oil-related developments in Easter Ross". Thesis, University of Edinburgh, 1986. http://hdl.handle.net/1842/18926.
Testo completo
28
Pereira, Gustavo Jorge. "Estudo do modelo de Ronald Ross sobre prevenção da malária /". Rio Claro : [s.n.], 2010. http://hdl.handle.net/11449/91148.
Testo completoAbstract (sommario):
Orientador: Suzinei Aparecida Siqueira MarconatoBanca: Marta Cilene Gadotti
Banca: Sandra Maria Semensato de Godoy
Resumo: Neste trabalho apresentamos um estudo qualitativo do modelo feito por Ronald Ross sobre a propagação da malária em uma comunidade. O modelo encontra-se no artigo "Contribution to the Analysis of Malaria Epidemiology" de Alfred J. Lotka [1] e é dado por um sistema não linear de duas equações diferenciais ordinárias
Abstract: In this work we present a qualitative study of the model developed by Ronald Ross about the propagation of malaria in a community. The model is presented by the article "Contribution to the Analysis of Malaria Epidemiology" of Alfred J. Lotka [1] and it is given by a nonlinear system of two ordinary differential equations
Mestre
29
Fares, Souha A. "Cox-Ross-Rubinstein Option Pricing Model with Dependent Jump Sizes". Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1301062095.
Testo completo
30
Cochran-Yu, David Kyle. "A keystone of contention : the Earldom of Ross, 1215-1517". Thesis, University of Glasgow, 2016. http://theses.gla.ac.uk/7242/.
Testo completoAbstract (sommario):
The earldom of Ross was a dominant force in medieval Scotland. This was primarily due to its strategic importance as the northern gateway into the Hebrides to the west, and Caithness and Sutherland to the north. The power derived from the earldom’s strategic situation was enhanced by the status of its earls. From 1215 to 1372 the earldom was ruled by an uninterrupted MacTaggart comital dynasty which was able to capitalise on this longevity to establish itself as an indispensable authority in Scotland north of the Forth. By the fifteenth century the earldom had passed to an equally powerful dynasty, the MacDonald lords of the Isles, and became a part of one of the most powerful regional hegemonies of medieval Scotland. The earldom and the power of its earls are acknowledged by most scholars, yet it remains a relatively under-analysed subject, as scholarship tends to gravitate towards viewing Ross through the MacDonald lordship of the Isles, or through the Scottish kings. This has led to Ross being treated as a secondary subject. Moreover, little has been done to compare the two principal dynasties that ruled the earldom and explore issues of continuity between the two. This thesis will study Ross through the comital dynasties that ruled it and the important local magnates within it, and will provide a Ross-centred platform from which to analyse the political development of the earldom. The thesis will also address issues of continuity, beginning with the origins of the Mac ant t-sagairt earldom and trace its political evolution until the MacDonald claim to Ross was finally extinguished in the early sixteenth century. This thesis will be the first long duree study of this Scottish earldom, and will increase our understanding of Ross and its earls who were so vital to Scotland’s medieval history.
31
Shields, Christopher C. "Nudibranchs of the Ross Sea, Antarctica phylogeny, diversity, and divergence /". Connect to this title online, 2009. http://etd.lib.clemson.edu/documents/1252937231/.
Testo completo
32
Fragoso, Glaucia M. "Hydrography and Phytoplankton Distribution in the Amundsen and Ross Seas". W&M ScholarWorks, 2009. http://web.vims.edu/library/Theses/Fragoso09.pdf.
Testo completo
33
Liu, Xiang. "Ross River Virus Interaction with the Type I IFN Pathways". Thesis, Griffith University, 2016. http://hdl.handle.net/10072/367506.
Testo completoAbstract (sommario):
Ross River virus (RRV) belongs to the genus Alphavirus and is a medically important arbovirus that causes musculoskeletal disease in humans with symptoms such as arthralgia, arthritis and myalgia. Disease symptoms consistent with RRV infection were first recorded in 1928 in Australia. Currently, with approximately 5,000 cases of RRV infection reported each year in Australia, RRV is the most widely spread arbovirus throughout the South Pacific region. At present there are no specific therapeutics or vaccines available. RRV disease is treated with analgesics and non-steroidal anti-inflammatory drugs to provide symptomatic relief. Therefore, it is important to investigate RRV disease mechanisms so as to better understand disease pathogenesis, which could lead to identifying potential targets for therapeutic intervention. The host Type I interferon (IFN) system is the primary innate antiviral defence mechanism. The antiviral effects of type I IFN act to both suppress viral replication and modulate innate and adaptive immune responses during viral infection. However, the interplay between the host type I IFN responses and alphavirus infection is currently poorly understood. This thesis focuses on the role of type I IFN system in RRV infection and disease pathogenesis.Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Institute for Glycomics
Science, Environment, Engineering and Technology
Full Text
34
Broussard, James Allen. "A champion for the disaffected: Ross Perot's 1992 presidential crusade". Diss., The University of Arizona, 1995. http://hdl.handle.net/10150/187056.
Testo completoAbstract (sommario):
In 1992, Ross Perot, billionaire entrepreneur from Texas, headed the most powerful independent presidential candidacy of the twentieth century, garnering nearly 19 percent of the popular vote. Perot's rhetoric demanded fundamental reform through a seemingly contradictory message calling for both individual responsibility and collective patriotism and sacrifice: corporate populism, a traditional, albeit profoundly paradoxical ideological appeal. Perot spoke of rekindling the "American Dream" for the next generation, whose prospects appeared bleak because of a post-Cold War credit crisis and withering of the United States' industrial base. He saw linkages between this crisis and a host of social problems, and advocated controversial solutions that made coalition-building difficult. Perot looked to his followers to develop consensuses on many issues of the day. Heading a "grassroots" movement organized from the top down, with disciples from all points on the ideological compass, however, Perot found consensus a rare commodity. As a result, his campaign lacked cohesion. Perot's methods, personality, and wealth raised disturbing questions about the future of representative democracy, but his unfolding campaign also highlighted shortcomings in American electoral institutions and processes. Perot's treatment by the press, for example, provides a case study of the mass-production of political portraits and the impact of those images. That so many citizens voted for a man often portrayed as a suspicious, morally rigid, unscrupulous, vengeful demagogue indicates how widely disaffection with American political institutions had spread. Tapping this discontent, Perot created the potential for a new kind of politics in the United States. He catalyzed discourse on policy issues like foreign trade, welfare reform, military policy, and Executive branch responsibility. He focused attention on chronic problems like the national debt, the annual budget deficit, and the insolvency of "entitlement" programs like Social Security and Medicare. His presence seems to have provoked an unusually high turnout on election day. He helped pioneer a new era of direct dialog between candidates and citizens through the use of interactive and electronic media. Finally, Perot's candidacy symbolizes the emergence of a new centrist political movement--a force which in 1994 began to dramatically reshape the American political landscape.
35
Perotti, Matteo. "Provenance of late-Quaternary sediments from Ross Sea region (Antarctica)". Doctoral thesis, Università di Siena, 2018. http://hdl.handle.net/11365/1169858.
Testo completoAbstract (sommario):
In this thesis the application of multi-disciplinary provenance methods to the study of late Quaternary sediments deposited along the edge of the continental shelf of Ross Sea and in the coastal area of McMurdo Sound (Southern Victoria Land) is treated.
In particular, petrographic analysis of gravel fraction (clasts of different grain size) has been applied to glacimarine intervals related to the last advance and consequent retreat of the Antarctic Ice Sheet on the continental shelf at the Last Glacial Maximum. The sediments were analyzed using a petrographic approach, with logging and classification of gravel-sized clasts of various lithologies in cores distributed along an E-W transect along the entire Ross Embayment. The classification and quantitative approach applied on the gravel fraction, coupled with geo and thermo- chronological techniques on sandy fractions from the same stratigraphic intervals, allowed to refine the existing data in the region dealing with drainage pattern of paleo-ice flows during the Last Glacial Maximum. In particular, in the region of Eastern Ross Sea, the acquired new data allowed to better constrain the contribution of West Antarctica Ice Sheet to the ice drainage in the Ross Embayment, while in the Central and Western Ross Sea the contribution of East Antarctic Ice Sheet has been revealed by new petrographic data that have qualitatively refined existing provenance models.
In addition, a petrographic approach on onshore unconsolidated sediments (Ross Sea Drift) transported by a grounded Ice Sheet in the McMurdo Sound region (Southern Victoria Land) has been carried out, applying a quantitative approach to various granulometric fractions. Deposits have been classified according to thelithological composition of clasts that composed these sediments. The data obtained allowed to refine the existing ice transport models in the region and to hypothesize paleo ice flow depending on the provenance of glacial erratics.
36
Horne, Felicity Anne. "Consequences of an in utero Ross River virus in mice". Thesis, Queensland University of Technology, 1997. https://eprints.qut.edu.au/36998/1/36998_Horne_1997.pdf.
Testo completoAbstract (sommario):
The physical and immunological consequences to BALB/c and CBA murine
neonates of in utero infection with Ross River virus [RRV] were compared to
previously reported teratogenic and tolerogenic properties of other togaviruses.
X-ray imaging as a means of determining the incidence, type and extent of
teratogenesis induction in neonatal mice lacked sufficient resolution for the
determination of structural abnormalities.
A previously described histological technique for identifying cartilage and bone
defects [Mabruk et al., 1988] was unsatisfactory as disintegration of neonatal
material occurred upon storage. This study modified the method to include an
inital fixation step in normal buffered formalin prior to Alcian Blue staining, a
ten-fold increase in the concentration of the clearing agent and an extension
of reagent exposure times. No skin defects nor skeletal deformities, reported
in similar studies with related viruses, were noted in the present investigation.
Skeletal changes observed following embryonic exposure to RRV at 8 to 18
days gestation were similar to those seen in uninfected control mice. Such
changes, which included bones missing or not visible in the extremities of
mice, were attributed to incomplete skeletal development resulting from
variations both in the murine gestational period [19 to 21 days] and in the
collection of neonates post-partum [within 12 hours of birth].
Changes to the structure [malformation] and orientation [misalignment] of the
sternebrae, noted in the present investigation, were considered variable but
normal representations of ossification centres within the sternum. No
difference in the incidence or severity of these anatomical disturbances was
observed between uninfected and RRV infected mice in this study. Although
the development of six bones within the sternum were expected, 6% [5/83] of
neonatal BALB/c mice demonstrated a supernumerary sternebra. This
observation was not significant for uninfected and RRV-infected populations.
Further, one uninfected CBA mouse presented with only five sternebrae.
Consequently, it is concluded that in utero exposure to RRV, strain T48, does
not induce teratogenic changes to BALB/c or CBA foetuses.
The induction of neonatal immunological tolerance in uninfected mice and mice
exposed in utero to RRV was assessed using an indirect enzyme linked
immunosorbent assay [ELISA] to quantify the murine serum titres of anti-RRV
lgM and lgG subclass antibodies. Further, a virus titration method was utilised
to assay murine sera for virus content. Four experimental groups of mice were
investigated : U and I defined as uninfected and infected respectively; 0 and
M defined as offspring and mother respectively.
Serum titres of anti-RRV lgM antibody remained similar or increased
significantly during the testing period. In contrast, the serum titres of anti-RRV
lgG antibodies were obseNed to significantly increase only in those offspring
suckled on uninfected mothers [U0UM and l0UM groups] and to significantly
decrease only in those offspring suckled on infected mothers [U0 1M and 10
1M
groups]. Further, a significant reduction in the incidence of viraemia and
median serum titre of virus was obseNed only in BALB/c mice born to, and
subsequently suckled on, uninfected mothers.
For both BALB/c and CBA mouse strains, comparisons between groups of
mice [U0 UM and 10
UM; U0 1M and 10
1J indicated that the serum titres of anti-RRV
lgG subclass and lgM antibodies remained similar or were significantly
elevated in the uninfected offspring during the 2 week period following
intraperitoneal [i.p.] injection with RRV. Other comparisons [U0UM and U0 1M;
10
UM and 10
1J indicated that although the serum titres of anti-RRV lgG
subclass antibodies were similar or significantly elevated in those mice suckled
on infected mothers at 1 and 3 days following i.p. injection, this trend was
reversed at 14 days post-injection. For these same comparisons, serum titres
of RRV-specific lgM antibody remained similar or were significantly higher in
those mice suckled on uninfected mothers for the entire testing period. In
addition, more offspring born to, and subsequently suckled on, uninfected mothers were viraemic, with significantly higher serum titres of virus, than any
other experimental group.
Generally, inter-strain comparisons for each experimental group indicated that
serum titres of anti-RRV antibodies were either similar in both mouse strains
or significantly elevated in CBA mice. Significant variation in the incidence of
viraemia and median serum titre of virus was observed only in those mice born
to, and subsequently suckled on, uninfected mothers. At 3 days post-injection,
more CBA mice were viraemic, with higher serum titres of virus, than BALB/c
mice.
Post-partum transfer of maternal immunoglobulin moderated the lgG and lgM
immune responses in uninfected mice suckled on infected mothers, affirming
the importance of maternal antibody in neonatal anti-viral protection.
This investigation presents important information on the effects of in utero
exposure to RRV in the murine model. A distinct deficiency in lgG production
was demonstrated in mice infected in utero with virus then challenged postpartum.
Further characterisation of this immunodeficiency indicated that all the
lgG pathways in BALB/c mice were affected, while in CBA mice only the lgG1
and lgG3 subclasses were reduced. No correlation between prenatal exposure
to RRV and lgM production was evident. These results provide the first
evidence for the induction of neonatal immunological tolerance in BALB/c and
CBA mice following in utero exposure to RRV. This thesis proposes clonal
anergy of B cells, capable of responding to RRV, as the primary mechanism
responsible for the immunologically non-responsive state observed in this
study. However, the ancillary role of clonal abortion of RRV-specific Band T
cell clones in the induction of murine neonatal tolerance cannot be dismissed.
The future investigation of specific aspects identified in this study are of
considerable importance in vaccine development. The possibility of adverse
effects of a live vaccine on an unborn child would greatly affect the decision
as to whether a RRV vaccine should be live attenuated or killed.
37
Priebe, Anna Catherine. "“May I Disturb You?”: Women Writers, Imperial Identities, and the Late Imperial Period, 1880–1940". University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1054329059.
Testo completo
38
Boyd, Lauren Winifred Emily Bartek Louis Robert. "Contrasting sub-ice shelf, subglacial and glaciomarine deposition at the Ross Ice Shelf edge implications for the glacial history of the Ross Sea Region, Antarctica /". Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2008. http://dc.lib.unc.edu/u?/etd,2075.
Testo completoAbstract (sommario):
Thesis (M.S.)--University of North Carolina at Chapel Hill, 2008.Title from electronic title page (viewed Feb. 17, 2009). "... in partial fulfillment of the requirements for the degree of Master of Science in the Department of Geological Sciences." Discipline: Geology; Department/School: Geological Sciences.
39
Stewart, Craig Lincoln. "Ice-ocean interactions beneath the north-western Ross Ice Shelf, Antarctica". Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/274361.
Testo completoAbstract (sommario):
Basal melting of ice shelves is causing accelerating mass loss from the Antarctic Ice Sheet, yet the oceanographic processes which drive this are rarely observed. This thesis uses new observations from phase sensitive radar and moored oceanographic instruments to describe the processes which drive rapid basal melting of the north-western Ross Ice Shelf. Oceanographic conditions at the mooring site are strongly influenced by the neighbouring Ross Sea Polynya. High Salinity Shelf Water fills the lower water column continuously, but during summer a southward flow ventilates the cavity bringing Antarctic Surface Water (AASW) to the site. Tides account for half of the flow speed variance, and low frequency variability is influenced by local winds, and eddies associated with sea ice production in the polynya. Four years of basal melt rate observations show a mean melt rate of 1.8 m y$^{-1}$ at the mooring site and a strong seasonal cycle driven principally by water temperature variations. Radar observations show that melt rates vary rapidly and continuously in response to flow speed variability, and rapid melting occurs only when flow speeds are high. Radar observations of melt rates from 78 sites on the Ross and McMurdo ice shelves show an area-averaged annual-mean basal melt rate of 1.35 m y$^{-1}$, implying a net basal mass loss of 9.6 Gt y$^{-1}$ from the region. Melt rates are highest near the ice front where annual-mean and short-term summer rates reached 7.7 m y$^{-1}$ and 53 m y$^{-1}$, respectively. The seasonal and spatial variations in melt rate are consistent with melting driven by the summer inflow of AASW. Observations of boundary layer water temperature, flow speed and melt rates indicate that melt rates scale linearly with current speed, but sub-linearly with temperature in the outer boundary layer, possibly due to the stabilising effects of melt water input. Existing melt rate parameterisations which account for flow speed can be tuned to match the observations when thermal driving is low, but overestimate melt rates at higher temperatures, implying the need for further refinements to the models.
40
Negroni, Mirko. "Studio degli ecosistemi bentonici nei sedimenti superficiali del Mare di Ross". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18008/.
Testo completoAbstract (sommario):
Il presente lavoro di tesi ha permesso di ottenere importanti dati inerenti la distribuzione dei foraminiferi viventi nel Mare di Ross. Nel dettaglio è stato eseguito lo studio delle associazioni a Foraminiferi planctonici e bentonici presenti nei sedimenti marini recenti campionati in due aree oceanograficamente diverse del Mare di Ross ovvero nel Joides basin (siti B1 e B2) caratterizzato dalla presenza delle MCDW, dalla presenza delle HSSW e dalla CCD attorno i 500 m e nel Draganski through, interessato dalle MCDW ma caratterizzato da forti correnti di fondo. Le indagini sono state di tipo interdisciplinare: è stato fatto un conteggio quantitativo delle specie a guscio calcareo e di quelle a guscio agglutinante distinguendo la biocenosi dalla tanatocenosi corredato di analisi statistiche e mineralogiche. Quest’ultima ha permesso di caratterizzare la natura composizionale delle principali specie a F. agglutinanti. I dati ottenuti hanno evidenziato la correlazione le masse d’acqua e la composizione della microfauna, rilevando come la tanatocenosi risulti impoverita rispetto alla biocenosi. Le forme più abbondanti sono quelle a guscio agglutinante quali: T. cf. quadricamerata., R. cylindrica, R. spiculifer, L. difflugiformis, M. arenacea e R. contortus in quanto non intaccate dalla dissoluzione dei carbonati. In ambienti al di sopra della CCD e con forti correnti sul fondale, N. pachyderma domina e le forme agglutinanti sono praticamente assenti (sito C). In questi tipi di ambienti la microfauna è caratterizzata dalla presenza di taxa molto resistenti quali G. biora e T. earlandi oltre a quelli che vivono attaccati a vegetali o ad altri organismi quali C. lobatulus e C. refulgens. Grazie all’indagine condotta all’ESEM si è potuto evidenziare che i clasti che compongono il guscio dei Foraminiferi agglutinanti rispecchiano la composizione del sedimento circostante con predilezione per il quarzo probabilmente perché consentono maggiore stabilità al guscio.
41
Sinclair, Ross. "Ross Sinclair : 20 years of real life : PhD by published work". Thesis, Glasgow School of Art, 2016. http://radar.gsa.ac.uk/4817/.
Testo completoAbstract (sommario):
The submission, Ross Sinclair: 20 Years of Real Life consists of seven publications discussed in a critical overview, with three supporting Appendices. Together they document and analyse the diverse outputs of my practice-led research project, Real Life, initiated in 1994. The critical overview argues for the innovative nature of the Real Life Project through its engagement with audiences and demonstrates its contribution to the field of contemporary art practice, across the disciplines of sculpture, painting, performance, installation, critical writing and music. Since the inception of my Real Life project I have explored the agency and impact of the artwork and exhibition in relation to audience exploring new methodologies and in June 2016 was awarded the Degree of Doctor of Philosophy by Published Work at GSA/GU titled, “20 Years of Real Life”. Here I set the project in critical overview around the philosophical paradigms of Barthes, Baudrillard and de Certeau viewed through a contemporary critical framework of Bourriaud, Bishop and Kester. I argue my project represents a unique and idiosyncratic contribution in its own right to these debates when viewed as a single longitudinal project, unique in recent art context. The impact, influence and contribution of this project is viewed in this submission through the prism of the 5 institutional monographic publications on my work as well as 2 contributions to refereed journals and 3 Appendices describing the project output and published writing, two of these appendices alone exceed 400 pages in length. I will continue to explore this project in the wake of the PhD undertaking further research. I have already had informal discussions with several staff with a view to mentoring/assistance/development of PhD's and am giving a Fine Art Research Seminar on the process of the PhD by Published work and I hope this will lead to more confidence and capability in the School of Fine Art.
42
Carver, Scott Stevenson. "Dryland salinity, mosquitoes, mammals and the ecology of Ross River virus". University of Western Australia. School of Animal Biology, 2008. http://theses.library.uwa.edu.au/adt-WU2009.0100.
Testo completoAbstract (sommario):
[Truncated abstract] In an era of emerging and resurging infectious diseases, understanding the ecological processes that influence pathogen activity and the influences of anthropogenic change to those are critical. Ross River virus (RRV, Togoviridae: Alphavirus) is a mosquito-borne zoonosis occurring in Australia with a significant human disease burden. In the southwest of Western Australia (WA) RRV is principally vectored by Aedes camptorhynchus Thomson (Diptera: Culicidae), which is halophilic. The inland southwest, the Wheatbelt region, of WA is substantially affected by an anthropogenic salinisation of agricultural land called dryland salinity, which threatens to influence transmission of this arbovirus. This study assessed the ecological impacts of dryland salinity on mosquitoes, mammalian hosts and their interactions to influence the potential for RRV transmission. Many aquatic insect taxa colonise ephemeral water bodies directly as adults or by oviposition. Using a manipulative experiment and sampling from ephemeral water bodies in the Wheatbelt, I demonstrated that salinity of water bodies can modify colonisation behaviour and the distribution of some organisms across the landscape. Halosensitive fauna selected less saline mesocosms for oviposition and colonisation. In particular, Culex australicus Dobrotworksy and Drummond and Anopheles annulipes Giles (Diptera: Culicidae), potential competitors with Ae. camptorhynchus, avoided ovipostion in saline mesocosms and water bodies in the field. This finding suggests salinity influences behaviour and may reduce interspecific interactions between these taxa and Ae. camptorhynchus at higher salinities. Using extensive field surveys of ephemeral water bodies in the Wheatbelt I found mosquitoes frequently colonised ephemeral water bodies, responded positively to rainfall, and populated smaller water bodies more densely than larger water bodies. The habitat characteristics of ephemeral water bodies changed in association with salinity. Consequently there were both direct and indirect associations between salinity and colonising mosquitoes. Ultimately the structure of mosquito assemblages changed with increasing salinity, favouring an increased regional distribution and abundance of Ae. camptorhynchus. The direct implication of this result is secondary salinisation has enhanced the vectorial potential for RRV transmission in the WA Wheatbelt. ... This thesis contributes to an emerging body of research aimed at delineating important ecological processes which determine transmission of infections disease. Collectively the findings in this study suggest dryland salinity enhances the potential for RRV activity in the Wheatbelt. Currently, human RRV notifications in the Wheatbelt do not reflect the salinity-RRV transmission potential in that area, but appear to be associated with dispersal of RRV from the enzootic coastal zone of southwest WA. I speculate dryland salinity is a determinant of potential for RRV transmission, but not activity. Dryland salinity is predicted to undergo a two to four fold expansion by 2050, which will increase the regional potential for RRV activity. Preservation and restoration of freshwater ecosystems may ameliorate the potential for transmission of RRV and, possibly, human disease incidence.
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Harvey, Kathryn Nancy. "David Ross McCord (1844-1930) : imagining a self, imagining a nation". Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100618.
Testo completoAbstract (sommario):
This thesis is about the life of David McCord and the contribution he made to Canadian public memory as founder of the McCord Museum of National History. In his McGilI-sponsored museum, founded in 1921, McCord sought to promote a myth of Canadian origins with narration provided by the objects of his personal collection. Integral to this history was the story of the McCord family, their arrival on this continent and their rise to social prominence. In McCord's version of Canadian history, family and personal myth were conflated with that of nation. Viewed through the prism of his collecting and museum work, McCord's life does not easily fit the Carlylean frame adopted by most biographers. In Canadian biographical writing by historians, the 'truth' about a person's life is revealed by following the modernist recipe of painstakingly recreating a detailed chronology of the individual's life. The approach followed here is an important departure from traditional political biography. Entry into McCord's life does not occur at his biological birth date, but at the moment of his own self-fashioned 'birthing', with the opening of the museum realized near the end of his life. In this biographical strategy, McCord's museum acts as a theatre of memory, where fragments of his life story are reassembled to create a narrative of national origins and of personal redemption. In his selection of objects and their display, and in the creation of an archive and the museum itself, McCord left a very elaborate and lasting record of his response to a set of changes associated with industrialization, a process which, in his lifetime, radically transformed the Montreal of his parents' generation. This thesis traces the connection between the creation of a public museum, founded to promote a collective vision of the Canadian past, and the private world of one collector whose collecting practice was defined as much by his own desire to remember and be remembered as it was by the kinds of objects he collected. What makes David McCord's life and collection so compelling is the opportunity it provides from understanding national history from the intimate perspective of one individual.
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Beckett, Margaret J. "The political works of John Lesley, Bishop of Ross (1527-96)". Thesis, University of St Andrews, 2002. http://hdl.handle.net/10023/2015.
Testo completoAbstract (sommario):
John Lesley saw himself as a humanist, devoted to the common weal and especially to his Queen; to others he was `a busie man', `seed-man of all treasons'. Educated in the Renaissance Scotland of James V and trained in France for a career in the law and the Church, he was `a great doer' with Queen Mary and, briefly, at the heart of government in Scotland, as Lord of Session, Bishop and trusted Counsellor. In 1568 his priorities were transformed. Charged with defending Mary's innocence at York and her interests at the court of Elizabeth, he failed to secure her rehabilitation in Scotland or her release from England. What he could not do in court by his pleading he attempted to do, covertly, by his pen, in an attempt to convince the English nobility and the Spanish King that Mary was Elizabeth's natural heir, in no way disqualified by her own character and conduct or her gender or by English laws of succession. These three topics and Lesley's handling of them are discussed in Chapters Two to Four. Chapter One uses his own, often mutually contradictory, accounts of these years to indicate the circumstances in which his polemic, and the Histories discussed in Chapter Six, were composed. Chapter Five argues that A Treatise of Treasons should not be ascribed to him. In the past century, Lesley has attracted little notice, usually overshadowed by stronger or more flamboyant characters; from his writings, Mary's `learned and most faithful servant' can appear to have the consistency of a chameleon. This study is concerned with his political works, in Latin, Scots and English; it tries to explain those discrepancies which it cannot reconcile, and to examine Lesley's ideas, and their influence, on political issues which included resistance, union with England and the rights of women.
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Bangor-Jones, Malcolm. "Aspects of landholding in Ross and Cromarty and Sutherland c1600-1850". Thesis, University of Dundee, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.511644.
Testo completo
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Meyer, Kellie S. "Reading the stones : the Pictish monuments on Tarbat peninsular, Easter Ross". Thesis, University of York, 2004. http://etheses.whiterose.ac.uk/14143/.
Testo completoAbstract (sommario):
This thesis examines the Pictish carved stones from the Tarbat peninsula, which include the cross-slabs at Nigg, Shandwick and Hilton of Cadboll, as well as the numerous fragments from Portmahomack. While many of these have been previously mentioned by scholars, they have never been closely studied as a group that might express a coherent political and/ or spiritual program, and which may contribute to the understanding of the Pictish settlements on the peninsula. In order to do so the known cultural background of the early medieval world is initially investigated to provide a context within which to study this group of carvings. This investigation includes a survey of the historical and literary texts, and the history and liturgical practices of the church in the Insular world. Once this background is presented, each individual site and carving is thoroughly explored as regards historiography and archaeological context (as it is known so far). The decoration on each monument or carved fragment is then scrutinized in order to place the work in an art-historical context. Once this has been done, the iconographic significance of the images carved on these stones is determined, and the iconology of the monuments surmised. The monuments of the Tarbat peninsula thus emerge as complex conveyers of meanings both sacred and secular. Placed within the context of the 8th to mid 9th - century Insular world they strongly support the argument that the Tarbat peninsula was home to an important and influential monastic estate with possible royal ties, which had established links with other ecclesiastical sites throughout Britain and Ireland, and contacts with the Continent and the Eastern Mediterranean.
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Liu, Zhong. "Atmospheric boundary layer dynamics near Ross Island and over West Antarctica /". The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487930304687146.
Testo completo
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Whitman, Michael. "The clergy of Cork, Cloyne and Ross during the Tudor reformations". Thesis, University of Liverpool, 2015. http://livrepository.liverpool.ac.uk/2010759/.
Testo completoAbstract (sommario):
This thesis challenges existing diocesan histories of Cork, Cloyne and Ross. Its local focus provides an invaluable opportunity to explore the successes and failures of the reformations in the region. The arguments are split into four chapters, which are divided between the upper and lower clerical orders, the secular and religious clergy, both before and during the eras of the Tudor reformations. The argument uses antiquarian sources, Irish annals and English state papers to narrate the formation of diocesan, parochial and monastic structures in the region. The quality of each is then assessed for both the late medieval and reformations periods, with direct reference to the effects of the peculiarities of Co. Cork’s religion upon the progress of reform. The thesis argues that the secular elites of Cork, Cloyne and Ross were intrinsically wedded to its church, involved heavily in the creation of the parish and monastic networks. Following the contraction of the crown polity in the medieval periods, local families took on increasing levels of influence. During the Tudor period, the crown sought to expand its power in the region. However, the agents of reform failed to engage with the Irish and Anglo-Norman elites. Instead, their work would be accomplished at the expense of the traditional political and religious structures. This failure was based in the pervasive economic and polical connections between the secular and religious elites of Co. Cork, but was reinforced by the particular weaknesses of the Anglican reformation strategy.
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Smith, Kelly C. "Source and occurrence of placer gold in central Ross County, Ohio". Connect to this title online, 1992. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1100622082.
Testo completo
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Reddy, Tasha Elise. "Oceanography of the Ross Sea : ocean circulation, sea ice, and phytoplankton /". May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
Testo completo