Dissertations / Theses on the topic 'Life cycles'
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1
Bergman, Edward M. "Cluster life-cycles: an emerging synthesis." Institut für Regional- und Umweltwirtschaft, WU Vienna University of Economics and Business, 2007. http://epub.wu.ac.at/214/1/document.pdf.
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Edquist, Love. "Export Competitivness : Product Life Cycles and Specialization." Thesis, Jönköping University, JIBS, Economics, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-262.
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Denna uppsats analyserar om det finns ett samband mellan den snabbt växande tyska exporten och produktutveckling. Genom en segmentering av den tyska tillverkningsindustriexporten i relation till olika produktgruppers internationella konkurrenskraft ges en möjlighet att undersöka skillnader mellan produktsegment med olika internationell konkurrenskraft. Analysen visar att i tidsperioden 2000 till 2002 definierades 76 av 240 produktgrupper ha haft en ökande internationell konkurrenskraft genom en relativ prishöjning. Detta är fler produktgrupper än i någon annan undersökt tidsperiod. De 76 produktgrupperna motsvarar 29,5 procent av det totala tyska exportvärdet, marginellt högre än i någon annan tidsperiod.
Produkter med ökande internationell konkurrenskraft genom en relativ prishöjning är också av ett högre värde per kilo export än andra konkurrenssegment. Analysen visare vidare att den internationella efterfrågan på dessa produktgrupper är signifikant högre än för produktgrupper med minskad internationell konkurrenskraft. Dock kunde inga generella skillnader mellan olika konkurrenssegment i relation till avståndskänslighet, kulturell och språklig affinitet samt EU-medlemskap på importandelen av tyska varor påvisas.
In this thesis the relationship between product development of the German manufacturing industry and the rapid German export growth is analyzed. By a segmentation of the German export according to international competitiveness, differences in characteristics of the different segments are analyzed. Positive for Germany is that in the time-period 2000 to 2002, 76 out of 240 analyzed product groups were defined as experienced increased export competi-tiveness through relative price increase; more than in any other analyzed time-period. These 76 product groups constituted 29.5 percent of Germany’s total export value, marginal higher than in any other time-period.
The analysis also shows that German product groups with increasing international competitiveness through relative price increase are of higher value than products in other competitive segments. The international demand for product groups with increasing international competitiveness through relative price increase is also higher than for other competitive segments. However, no general significant differences could be shown between different competitive segments in respect to distance sensitiveness, importance of cultural and linguistic affinity and EU-membership on the import share of German products.
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Sinclair, Victoria Anne. "Boundary-layer ventilation by baroclinic life cycles." Thesis, University of Reading, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501331.
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The aim of this research is to understand how mid-latitude weather systems ventilate pollutants out of the boundary layer. Specifically, which regions of the boundary layer beneath mid-latitude weather systems can exchange air with the troposphere which physical processes act to transport pollutants, and what controls the amount of ventilation. These questions are investigated by simulating dry baroclinic life cycles in the presence of a boundary-layer parameterisation scheme with a passive tracer included to represent pollutants.
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Wäckerle, Manuel, Bernhard Rengs, and Wolfgang Radax. "An Agent-Based Model of Institutional Life-Cycles." MDPI, 2014. http://dx.doi.org/10.3390/g5030160.
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We use an agent-based model to investigate the interdependent dynamics
between individual agency and emergent socioeconomic structure, leading to institutional
change in a generic way. Our model simulates the emergence and exit of institutional
units, understood as generic governed social structures. We show how endogenized trust
and exogenously given leader authority influences institutional change, i.e., diversity in
institutional life-cycles. It turns out that these governed institutions (de)structure in cyclical
patterns dependent on the overall evolution of trust in the artificial society, while at the same
time, influencing this evolution by supporting social learning. Simulation results indicate
three scenarios of institutional life-cycles. Institutions may, (1) build up very fast and
freeze the artificial society in a stable but fearful pattern (ordered system); (2) exist only for
a short time, leading to a very trusty society (highly fluctuating system); and (3) structure
in cyclical patterns over time and support social learning due to cumulative causation of
societal trust (complex system).
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Grunzke, Richard. "Generic Metadata Handling in Scientific Data Life Cycles." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-202070.
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Scientific data life cycles define how data is created, handled, accessed, and analyzed by users. Such data life cycles become increasingly sophisticated as the sciences they deal with become more and more demanding and complex with the coming advent of exascale data and computing. The overarching data life cycle management background includes multiple abstraction categories with data sources, data and metadata management, computing and workflow management, security, data sinks, and methods on how to enable utilization. Challenges in this context are manifold. One is to hide the complexity from the user and to enable seamlessness in using resources to usability and efficiency. Another one is to enable generic metadata management that is not restricted to one use case but can be adapted with limited effort to further ones.
Metadata management is essential to enable scientists to save time by avoiding the need for manually keeping track of data, meaning for example by its content and location. As the number of files grows into the millions, managing data without metadata becomes increasingly difficult. Thus, the solution is to employ metadata management to enable the organization of data based on information about it. Previously, use cases tended to only support highly specific or no metadata management at all. Now, a generic metadata management concept is available that can be used to efficiently integrate metadata capabilities with use cases.
The concept was implemented within the MoSGrid data life cycle that enables molecular simulations on distributed HPC-enabled data and computing infrastructures. The implementation enables easy-to-use and effective metadata management. Automated extraction, annotation, and indexing of metadata was designed, developed, integrated, and search capabilities provided via a seamless user interface. Further analysis runs can be directly started based on search results. A complete evaluation of the concept both in general and along the example implementation is presented. In conclusion, generic metadata management concept advances the state of the art in scientific date life cycle management.
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Padgett, Kerry A. "Life cycles and systematics of Mesocestoides spp. tapeworms /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.
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Karlsson, Elfgren Irene. "Studies on the Life Cycles of Akinete Forming Cyanobacteria." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3432.
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Hart, Steven D. "Performance of confined concrete columns under simulated life cycles." Diss., Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/607.
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Kahn, Kenneth B. "Functional strategic objectives over product and process life cycles." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/43089.
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This thesis is an initial attempt at analyzing the
"product-process matrix," a framework suggesting the
interaction of product and process life cycles. The
objectives of this thesis were to test the theory
surrounding the "product-process matrix" and also test
theories concerning the transition of strategic objectives
between "product-process matrix" regions. The methodology
included conducting a survey of Virginia manufacturing firms
on strategic concerns, constructing a database into which
survey responses were loaded, and analyzing survey
responses.
Results of this survey suggested that the theory
surrounding the "product-process matrix" may be
inappropriate. Results also indicated the possibility that
row and column descriptions of the current "product-process
matrix" may need alterations in order to be more applicable
to manufacturing firms. Further research is necessary to
examine possible biases associated with the survey
instrument and survey sample. After such research has been
undertaken, it is recommended that continued work in this
area may help to improve understanding the interaction
between markets and manufacturing processes.
Master of Science
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Hedden, Abigail S. "Exploring Life-Cycles of the ISM at Submillimeter Wavelengths." Diss., The University of Arizona, 2007. http://hdl.handle.net/10150/196018.
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This thesis focuses on addressing some important aspects of the life cycle of interstellar clouds through observational submillimeter and millimeter-wave studies of star formation and molecular cloud environments and the development of instrumentation to enable these studies.We examine the influence of star formation on parent molecular clouds through a case study of protostellar sources in the Mon OB1 northern cloud complex. An energetics analysis of these star forming regions and associated molecular outflows was carried out, suggesting that the cloud complex maintains its overall integrity, except along outflow axes and that the coupling between outflow kinetic energy and cloud turbulent energy is weak, < ~0.5%. In order to study the larger picture of cloud formation and disruption, this work was expanded to explore the molecular environment at cloud boundaries. To this end, acloud edge survey was undertaken consisting of multi-transition strip scan observations of CO and 13CO toward molecular clouds with a broad range of stellar and star forming characteristics. Our work supports the interpretation that cloud formation is taking place along the southeastern edge of Heiles Cloud 2, and the results will be used as a framework for guiding the analysis of other surveyed cloud edges.Achieving observational capabilities enabling effective studies of life cycles of the ISM is becoming possible through a new generation of heterodyne spectroscopic instruments. Here, we report on characterization measurements of a prototype mixer unit for the 64-pixel SuperCam array, an instrument commissioned to mapover 500 square degrees of the Galactic Plane with very high resolution at 345 GHz. These measurements were crucial to verifying the overall array design and anticipating its performance. Spectroscopic capabilities at THz (< 300 microns) frequencies permits access to a host of diagnostic tools (e.g., high-J CO, CI, NII, & CII) uniquely suited to probe crucial properties of the ISM. The development of heterodynetechnology at these frequencies is largely limited by availability of compact, powerful sources of local oscillator power. We explore the use of waveguide spatial filters in conjunction with Quantum Cascade Lasers, a promising power source at frequenciesabove ~ 2 THz.
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Soares, Ricardo Fanha Vicente. "Modeling financial needs of bank clients throughout their life cycles." Master's thesis, Instituto Superior de Economia e Gestão, 2018. http://hdl.handle.net/10400.5/18108.
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Mestrado em Mathematical FinanceO sector financeiro tem sido obrigado a repensar estratégias e a adaptar abordagens para conseguir acompanhar toda a disrupção tecnológica e social que se tem sentido, criando e aproveitando novas oportunidades de negócio. Atualmente, as instituições financeiras precisam de novas estratégias para reter os clientes atuais e capturar novos clientes, tal como a antecipação das suas necessidades. É neste contexto que surge o tema das necessidades financeiras de cada pessoa, um tema que carece de uma abordagem mais prática e realista, bem como de um enquadramento técnico adaptado ao tempo presente. Com este trabalho é ambicionado descrever as diferentes fases do ciclo de vida de uma pessoa, com base em dados recolhidos, e analisar de que modo é que os seus componentes têm influência na decisão do consumidor, relativamente à aquisição de produtos e serviços financeiros. É também pretendida a elaboração de um enquadramento da relação ciclo de vida ? necessidades financeiras e o desenvolvimento de um modelo que projete estas necessidades ao longo do ciclo e que otimize a propensão ao consumo, mediante a posição de cada pessoa no ciclo de vida. Esta análise revela pontos bastante relevantes, tal como a existência de correlação entre a ocorrência de certos eventos (como, por exemplo, casamento, nascimento de um filho) e a aquisição de produtos financeiros, um esquema detalhado da relação entre o ciclo de vida e as necessidades financeiras e ainda um modelo que prevê a melhor oferta de produtos e serviços financeiros para cada cliente.
The constant change that has been noticeable on a worldwide level has impacted the economical, geopolitical and social frameworks, with direct repercussions across every sector. For example, the financial sector is compelled to rethink strategies and to adapt its procedures in order to be up to date with respect to the current technological and social disruption, thus creating new business methods and opportunities. Currently, the financial institutions need new approaches to retain and to capture clients, such as knowing them and anticipating their needs. It is in this context that the concept of financial necessities arises, a subject that needs academic and professional investigation. With this work, it is intended to describe the different stages of the human life cycle, according to data collected during the project, and to provide an analysis on how its components are related to the decision process of acquiring financial products and services. It is also expected to provide a framework to the life cycle - financial necessities relationship and to develop a statistical model that predicts these needs throughout the life cycle and optimizes the propensity to consumption of financial products and services. The analysis carried out in this work discloses relevant insights, such as the existence of correlation between typical life events (e.g. marriage or childbirth) with the acquisition of financial products, a detailed framework of the life cycle - financial needs relationship and a predictive model which outputs the next best offer for clients.
info:eu-repo/semantics/publishedVersion
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Aldrich, Celia I. "Life cycles of behavior settings : three rural communities in Kansas." Kansas State University, 1996. http://hdl.handle.net/2097/36072.
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Go, Carlo. "Building Life Cycles: An Exploration of a Building's Transformation From One Life Into the Next." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/46201.
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"Nothing endures but change" - Heraclitus.
Buildings are designed and built to house a specific program for a set period of time. The end of a buildingâ s life marks a change in its use. In todayâ s building practices, some building owners opt to demolish an entire building prior to constructing a new one. Unfortunately, this world-wide attitude results in the production of millions of tons of waste every year and is not an ecologically sustainable practice.
However, as green building methods become more valued in todayâ s society, building owners and designers are becoming more conscious of buildingsâ end lives. Construction methods are increasingly involving concepts of designing for disassembly, wherein parts and materials can be easily taken apart for reuse or recycling. Such practices are vital in minimizing the unnecessary production of construction waste.
Everything on earth exhibits change. This thesis explores the development of a newly constructed building and its transformation at the end of its life into a new building. The project consists of two designs; the program of the first was predetermined while the program of the second was chosen by the committee at the concluding stage of the first design.
This thesis seeks to develop a position on architectural design and construction methods that acknowledges the fact that buildings are not permanent objects and that they will, at some point in time, change.Master of Architecture
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Anderson, Cairistiona Isobel Haig. "Oceanographic influences on squid population variability : Martialia hyadesi in the western South Atlantic." Thesis, University of Aberdeen, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248643.
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It has long been recognised that the life cycles of the major exploited ommastrephid squid species are closely related to oceanographic features, and that environmental variability may provide a significant stimulus for variability in the species abundance and distribution. In this thesis, the relationship between oceanographic processes and population variability for the ommastrephid squid Martialia hyadesi in the western South Atlantic is investigated using a geographic information system (GIS) (ARC/INFO(c) v. 7.2.1., ESRI Inc. 1999). From this analysis, it was clear that the oceanographic environment of the region does influence the abundance and distribution of M. hyadesi. However, the precise mechanisms by which this occurs are not determined. In the west of the study region, near the Patagonian Shelf, it appears that the distribution of M. hyadesi is intimately linked to that of the Falkland (Malvinas) Current, and that variability in the behaviour of this current may influence the annual abundance of the squid in the Patagonian Shelf squid fisheries. In the waters around the Falkland Islands (Malvinas), it appears that the 'population' of M. hyadesi may exist in two alternate states depending on its abundance. In most years, the squid occur at low densities, widely dispersed both in time and space. In exceptional years, the squid are far more abundant and are both spatially and temporarily aggregated. Although, no small juvenile or paralarval specimens of M. hyadesi were collected during this study, such specimens were collected for other squid species, and their distribution was successfully related to environmental factors. Both water mass type and water depth influenced the number of squid caught, and appeared to influence the species composition of the catches. Evidence was also found supporting the hypothesis that M. hyadesi does not occur near South Georgia during the austral summer and is extremely unlikely to spawn there.
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Koesters, Nils B. "Investigating life-history polymorphism : modelling mites." Thesis, University of Stirling, 2005. http://hdl.handle.net/1893/21630.
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The thesis presents research on the life-history polymorphism in the mite Sancassania berlesei. Males of this species are andropolymorphic: there are two distinct male phenotypes. One, the fighter, develops a third thickened leg pair, with which it kills off other fighters and males which do not exhibit a third thickened leg pair, the non-fighters. A review of the life-history of S. berlesei is given, focussing on its general biology, diet, dispersal and mating behaviour. This is followed by a review of the andropolymorphism, and the current understanding of the mechanisms underlying it. The major conclusions from the experimental work presented in this thesis are that fighters primarily develop at low population densities; though the proportion of males becoming fighters at any given density may change over time. This change is likely to be due to condition-dependence. Data is presented to illuminate these matters and a model is developed linking fighter development to the costs of being a fighter (in terms of survival) and the benefits of being a fighter (in terms of fecundity). The sex ratio in S. berlesei is 1:1, and there is no evidence of density or frequency-dependent deviations from this. A delay in food supply at maturation delays the time of maximum fecundity of females for about seven days and lowers their overall egg output. Density-dependent effects reduce the overall daily fecundity of females in higher densities. Female survival is affected by density, food present and rearing conditions. Nearly all eggs laid by S. berlesei hatch regardless of the conditions. Eggs laid in very poor conditions hatched even earlier than the average time of between day three and four. At density two, animals do synchronise their frequency, when isolated together from egg stage. Poor conditions reverse female density-dependence from convex to concave with the lowest life expectancy at intermediate densities. The trade-off between survival and fecundity is the likely cause. Amalgamating the results from the previous experiments, the influence of stochastic population dynamics on male strategy was then modelled. The results indicate that the fighter morph development rule is sensitive to the probability of low population densities arising. When low densities occur, there is a selective advantage to being a fighter. With increasing probability of lower densities, becoming a fighter is more feasible. The ESS rule changes, while in a stable high density environment a density-dependent fighter rule is never selected for. This indicates an influence of stochastic population dynamics on life-history evolution. Modelling demographic stochasticity in the fighter rule shows some buffering effect of this form of stochasticity. The fighter morph determination rule is less sensitive to environmental stochasticity with a high frequency of low densities. Using an agent based model with diploid genetics, I show that under high densities a fighter male is less successful at passing on his genes than a non-fighter. At a density of one male, the fighter gains no advantage to developing the fighter phenotype (as he is not competing with other males). In this case, the advantage may arise through future increases in density (such as through immigration or maturation of offspring). The density-dependent fighter development rule is then switched within the model from density-dependent to frequency-dependent, and the model indicates, that even under the frequency-dependent rule a possible ratio of fighters to non-fighters could exist. The system does not reach this state due to condition-dependence in reality. Following on from the findings discussed above, that morph determination has a condition-dependent component, I develop an argument that relates the observed forms of morph determination (density-dependent and frequency-dependent) in three closely related species of mites via an underlying condition-dependence. It is shown that condition-dependence is likely the linking factor between frequency and density-dependence. This is shown to be possibly a rule for all species displaying polymorphism which includes physical alterations of their bodies.
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Holmberg, Gunnar. "On aircraft development : managing flexible complex systems with long life cycles /." Linköping : Univ, 2003. http://www.bibl.liu.se/liupubl/disp/disp2003/tek853s.pdf.
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Piperato, Anna Edith. "Saint Catherine of Siena in three Italian life cycles, 1567-1600." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501950.
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This thesis examines three sixteenth-century Italian life cycles of Saint Catherine Benincasa of Siena (1347-80; canonized 1461) which previously have not been studied together. They are: 1. Giovanni de' Vecchi's frescoes in the Capranica Chapel in Santa Maria sopra Minerva in Rome (1577/8-86) 2. A series of oil paintings by a number of Tuscan artists in the Oratorio della Cucina in the Santuario-Casa di Santa Caterina in Siena (1567-1600/35) 3. A printed vita of the saint designed by Francesco Vanni and etched by Pieter de Jode, published in Siena (1597).
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Heckmann, Benjamin. "Service quality and profit control in utility computing service life cycles." Thesis, University of Plymouth, 2013. http://hdl.handle.net/10026.1/1568.
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Utility Computing is one of the most discussed business models in the context of Cloud Computing. Service providers are more and more pushed into the role of utilities by their customer's expectations. Subsequently, the demand for predictable service availability and pay-per-use pricing models increases. Furthermore, for providers, a new opportunity to optimise resource usage offers arises, resulting from new virtualisation techniques. In this context, the control of service quality and profit depends on a deep understanding of the representation of the relationship between business and technique. This research analyses the relationship between the business model of Utility Computing and Service-oriented Computing architectures hosted in Cloud environments. The relations are clarified in detail for the entire service life cycle and throughout all architectural layers. Based on the elaborated relations, an approach to a delivery framework is evolved, in order to enable the optimisation of the relation attributes, while the service implementation passes through business planning, development, and operations. Related work from academic literature does not cover the collected requirements on service offers in this context. This finding is revealed by a critical review of approaches in the fields of Cloud Computing, Grid Computing, and Application Clusters. The related work is analysed regarding appropriate provision architectures and quality assurance approaches. The main concepts of the delivery framework are evaluated based on a simulation model. To demonstrate the ability of the framework to model complex pay-per-use service cascades in Cloud environments, several experiments have been conducted. First outcomes proof that the contributions of this research undoubtedly enable the optimisation of service quality and profit in Cloud-based Service-oriented Computing architectures.
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Skilton, Joanna Lucy. "High energy phenomena associated with the life-cycles of massive stars." Thesis, University of Leeds, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.536090.
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Sherrard-Smith, Eleanor. "Macroparasites of the Eurasian otter : distributions, life-cycles and population dynamics." Thesis, Cardiff University, 2013. http://orca.cf.ac.uk/48854/.
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Potential alterations of host and parasite ranges are likely with climate change so an understanding of the host traits and ecological factors that can influence host-parasite interactions is vital for the effective protection of ecosystems. Accidental introductions of non-native species can place elevated stress on native ecosystems so that the examination of key species can act as early warning systems. The Eurasian otter, Lutra lutra¸ is a top predator and sentinel species for the health of European freshwater ecosystems and is therefore a suitable model for exploring parasite fauna introductions. In this PhD, the patterns and processes that define macro-parasitic infections were explored using evidence from post-mortems of 587 otters. Specifically, the invasive status of two helminths (Pseudamphistomum truncatum and Metorchis albidus: Trematoda; Opisthorchiidae) was investigated, both species having been identified in the UK otter populations for the first time within the last 10 years. Genetic variation, however, was similar across Europe indicating neither helminth is likely to have been a recent introduction to the UK., The distribution of both helminths as well as the only ectoparasite, Ixodes hexagonus (Arthropoda; Ixodidae), recovered from UK otters, were associated with abiotic factors, particularly temperature. The complexity of the parasite life cycles was investigated; otters act as a definitive host for both helminth species considered in this thesis and early stage intermediate hosts were identified for P. truncatum as the snail Radix balthica and the roach Rutilus rutilus. Metacercariae of M. ablidus were detected on chub (Leuciscus cephalus), rudd (Scardinius erythrophthalmus) and roach. Parasite aggregation and parasite fecundity of the P. truncatum populations were influenced by abiotic factors, region and season, whilst P. truncatum abundance was defined better by the biotic factors host age-class and condition demonstrating how multiple factors combine to produce parasite population dynamics in wild fauna. Ultimately, the data collated throughout this PhD was used to parameterise a susceptible-infected Susceptible-Infected (SI) model describing the host population dynamics of opisthorchiid trematodes. This model is applied to the P. truncatum system to examine which factors might determine the proportion of hosts that become infected.
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Quayle, Bryce Michael. "A simulation model of pharmaceutical research, development and product life cycles." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/11615.
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Black, Robert Xavier. "A diagnostic study of the life cycles of persistent flow anomalies." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/51479.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1990.Includes bibliographical references (p. 197-202).
by Robert Xavier Black.
Ph.D.
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Ahlin, Nathalie, and Maria Holmquist. "Reasons to Budget Throughout the Life Cycles of Swedish IT Companies." Thesis, Internationella Handelshögskolan, Högskolan i Jönköping, IHH, Företagsekonomi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-39700.
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The budget is shown to be the most prioritized management accounting tool for companies with scarce resources, while at the same time it is criticized for being time consuming and ineffective. This study uses life cycle theory as a framework to investigate how the budgets can be used in a more efficient and effective way, depending on what life cycle stage the company is in. The purpose of this study is to investigate how commonly budgets are used throughout the life cycle stages of IT companies in Sweden, and whether there is a difference in what reasons to budget are considered the most important in different stages. By using previous research made on life cycle theory and the reasons to budget as a foundation, this study collects the data using a quantitative method where a survey is sent to a sample of IT companies in Sweden. The answers to the survey lead to results about the budget use, what life cycle stage the respondents consider their company to be in, and how important ten different reasons to budget within the areas control, planning and evaluation are to the individual companies. The results show that there is a low budget use among companies in the birth stage, and that the budget use is high for companies in the growth, maturity and revival stages. The increasing budget use follows the increasing number of employees through the stages. The study finds that in general there are no major differences through the stages in what budget reasons are chosen to be most important; control is overall the most important purpose that the budget fulfills. Furthermore, there are some reasons to budget that have been assigned low values of importance across all the stages. Staff evaluation and encouraging innovative behavior are not considered important by the responding companies.
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Miranda, Edmund Richard. "Morphological constraints on life history evolution in Poecilia reticulata (Cyprinodontiformes: poeciliinae)." CSUSB ScholarWorks, 1999. https://scholarworks.lib.csusb.edu/etd-project/1722.
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Promislow, Daniel E. L. "Mortality patterns in natural populations on mammals and their consequences." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.256377.
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Siahmazgi, Ahad Sahragard. "Biological studies on Dicondylus indianus (Olmi) (Hymenoptera: dryinidae), with particular reference to foraging behaviour." Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.232884.
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De, Villiers Marleen. "A transpersonal exploration of the mother-daughter relationship in transitional life cycles." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/71890.
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Thesis (PhD)--Stellenbosch University, 2012.ENGLISH ABSTRACT: The mother-daughter relationship and the feminine principle in the process of individuation are explored in this study. The mother-daughter relationship as the focus of the study is presented as the womb where the stories and experiences are in gestation. In presenting this research as a transpersonal exploration, the principles and practices of transpersonal psychology and transpersonal research are used as the lens through which the process of research is viewed. The study tells the stories of adolescent daughters and their menopausal mothers and their lives as girls and women in transitional life cycles. It also tells the stories of the author's mother and of herself, and offers their shared experiences of being daughters, and remembering that they are also the daughters of daughters, the mothers of whom have passed away a long time ago. The stories are presented in the mode of a narrative inquiry, becoming an exploration in itself. The author looks into the stories of what has been written by those who have mapped the territory of the transpersonal and narrative landscapes in psychology, education, research and psychotherapy. A research collage of the mother-daughter relationship, transitional life cycles, and also of aspects of the feminine and the process of individuation is created. Images of alchemy, archetypes, mythological figures and archetypal goddesses are added to allow this collage to become its own story. The study combines research methods used in transpersonal research and narrative inquiry. Data were gathered by making use of journal writing, mandala drawings, interviews, visual imagery and photographs, collage, writing letters, personal documentation, dreamwork, working with words and personal mythology. Transpersonal principles such as meditation, reflection, mandala drawings, intuitive listening and so forth were applied in working with the data. The researcher also used principles of narrative inquiry to assist in the process of processing the information and finding the stories. The research findings that emerged indicate that a mother and daughter can hold up a mirror to each other in order to see that there are experiences of abandonment and dependency in their relationship; another mother and daughter pair related to each other from a basis of limiting self-experience; and yet another mother and her daughter were seen to have a relationship that contains powerful potential for individuation through the process of growth and transformation. These findings may be relevant to the therapeutic and educational spheres of psychology, in training and in application. This research journey is an adventure that can be seen as symbolically walking the labyrinth, following the circular path towards the centre, and then back again, out into life. This journey is symbolic of the process of individuation as based on the mythology of the serpent Ouroboros that swallows its tail in order to become whole. The process of alchemy in psychology forms the container for this journey into wholeness. Like Theseus, beloved of Ariadne of antiquity, I took the golden thread in hand and stepped into the labyrinth. The journey could begin …
AFRIKAANSE OPSOMMING: Hierdie studie verken die moeder-dogter verhouding en die vroulike beginsel in die individuasieproses. Die moeder-dogterverhouding as die fokus van hierdie studie word voorgestel as 'n houer vir die bewaring van belangrike aspekte van die vroulike beginsel. Die modus van transpersoonlike sielkunde en navorsing is gebruik om as 'n lens te dien waardeur hierdie proses ondersoek is. Die narratiewe navorsingsmetode is gebruik om die stories te vertel wat in hierdie studie aangebied word. Hierdie stories gaan oor die navorsingsreis, die reis van dogter-wees en moeder-wees, die reis van vrou-wording en vrou-wees in die oorgangsfases van vroue se lewens. Dit behels stories van adolessensie en die menopouse. Daarnaas geplaas is die stories van my moeder, van myself, en van ons verhouding. In hierdie vertelling oor die moeder skryf ek dit as die dogter van 'n dogter wie se moeder lank reeds oorlede is. Ek onderneem 'n reis deur die landskap van die literatuur en neem daaruit stories van aspekte van vrou-wees, van die vroulike beginsel, asook van transpersoonlike sielkunde en transpersoonlike navorsing. Dit gaan ook oor die narratiewe wyse van ondersoek en die waarde van stories in narratiewe terapie word bespreek. Hierdie navorsingsreis is 'n speurtog; soos in 'n labirint is dit 'n sirkelvormige reis, wat die mitologiese slang, Ouroboros, wat sy eie stert insluk om heel te word weerspieël. Die labirinte van die mitologie en argetipiese vroubeelde en godinne stem tot nadenke oor die sielkundige ervaring van individuasie. In die nadenke is daar, soos met die alchemiste van weleer, 'n soeke die goud in die lood en die bevindinge wat die navorsingsreis oplewer, word bekendgemaak. In hierdie reis is gebruik gemaak van transpersoonlike en narratiewe navorsingsmetodes en beginsels om die inligting te verkry waarmee die stories vertel kon word. Hierdie metodes maak onder meer gebruik van joernaalskryf, mandalas teken, onderhoude, visuele beelde en foto's, collage, briewe, persoonlike dokumente, droomwerk, woorde en woordassosiasie en persoonlike mitologie. Transpersoonlike werkswyses soos meditasie, refleksie, intuitiewe luister, joernaal skrywe en so meer is gekombineer met narratiewe werkswyses om die inligting te verwerk en die stories te ontgin. Die navorsingsbevindinge dui op ervaringe van afhanklikheid en vrese van verlating; van 'n moeder en dogter wat gebuk gaan onder beperkende ervaringe van selfvertwyfeling en die implikasie wat dit het vir hulle vrou-wees; van 'n moeder en haar dogter wat die potensiaal vir die proses van individuasie in hulle verhoudinge met hul vroueliggame vind. Die implikasies van hierdie bevindinge mag moontlik van belang wees vir sielkundiges en opvoedkundiges wat hulle in hierdie sfere van hulpverlening bevind. Soos Theseus, beminde van Ariadne van ouds, het ek die goue draad ter hand geneem en daarmee die ingang van die labirint betree. Die reis moes begin …
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Comacchio, Zeno. "Designing sustainable innovations : Opportunities for new life cycles within the furniture industry." Thesis, Linnéuniversitetet, Institutionen för design (DE), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-57669.
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The Linear Economy cannot any longer be sustained by the eco-system: virgin resources are limited and destined to terminate soon if the contemporary production and consumption model will be maintained. For this reason, in the last few years Circular Economy has become an increasingly discussed topic worldwide. Through the adoption of strategies that close-the-loop of the traditional linear production system, Circular Economy aims to find solutions that can create a balance between economy, society and environment. This study aims to provide a holistic overview on the main theories and strategies that can ease a business transition to a Circular Economy model, to analyse challenges and opportunities connected to this conversion and to present a concrete tool developed for this purpose. The Life Cycle Design theory is here discussed and contextualised within the furniture industry reality since this study has been executed in collaboration with IKEA, the company case study of this thesis. An academic and professional literature review have been performed in order to gather information about theory and practice related to the implementation of strategies needed by a Circular Economy: product disassembly, recovery, reuse, refurbish, recycle and remanufacturing. The professional literature reviewed point out that the implementation of a circular model can lead to economic advantages and growth’s opportunities for manufacturers in various economic sectors. The implementation of Circular Economy in the furniture industry seems to be in its early stages and it mainly focus, with few exception, on recycling rather than on the more effective reuse, refurbish or remanufacturing operations. This study points out the two main issues that the furniture manufacturers need to solve in order to enable the implementation of more effective circular strategies: product disassembly and recovery. Furthermore, the need of an innovative and holistic approach is discussed with particular emphasis on the importance of a systemic thinking that enable organisation to create their own identity and objectives in relation to the Circular Economy model. The importance of a system that connects and coordinate the sustainable efforts and aims for new products and services is therefore highlighted, suggested and deeply considered in the development of the tool proposed. To conclude, a comparison between two IKEA products (the sofas Söderhamn and Knopparp) was performed to identify the role of the products’ design and development in relation with the implementation of a Circular Economy model. The products were briefly technically analysed and then a comparison between a linear and a circular end-of-life cycle scenario has been represented.
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Beckham, Carla Jolene. "Analysis of Connections Between Host Cytoplasmic Processing Bodies and Viral Life Cycles." Diss., The University of Arizona, 2007. http://hdl.handle.net/10150/194209.
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In the past few years, cytoplasmic processing bodies (P-Bodies) have been identified in eukaryotic cells. P-bodies have roles in translational repression, mRNA storage, mRNA decay and are conserved cytoplasmic aggregations of non-translating mRNAs in conjunction with translation repression and mRNA degradation factors. In this work, I, in collaboration with others provide evidence for a new biological role for P-bodies in viral life cycles. This work can be summarized thus:In a collaborative effort, I have identified connections between retrovirallike transposon life cycles and P-bodies. For example, genetic evidence in yeast indicates that key proteins within P-bodies are required for the life cycles of the Ty1 and Ty3 retrotransposons. Moreover, Ty3 genomic RNA (gRNA) as well as viral structural proteins accumulate in P-bodies, suggesting that P-bodies may serve as sites of viral assembly.Second, I have shown, with assistance of collaborators, that the positivestrand RNA virus, Brome Mosaic Virus (BMV) gRNA accumulates in P-bodies Moreover, viral RNA dependent RNA polymerase (RdRp) colocalizes with and co-immunoprecipitates with the P-body protein Lsm1p, suggesting that P-bodies may participate in viral replication. Remarkably, the accumulation BMV gRNA in P-bodies is dependent on cis-elements that have been demonstrated to play critical roles in viral RNA replication.The identification of P-bodies as sites of accumulation of viral gRNA and viral proteins of both retro-virus like elements and positive-stranded RNA viruses, expands the list of important biological roles played by P-bodies. Since P-body proteins and structure are highly conserved, these findings imply that Pbodies will be important for other RNA viruses.
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Boric, Dusan. "Seasons, life cycles and memory in the Danube Gorges, c. 10000-5500 BC." Thesis, University of Cambridge, 2002. https://www.repository.cam.ac.uk/handle/1810/272075.
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Bruno, Arianna. "Spears in context : typology, life-cycles and social meanings in Bronze Age Italy." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/spears-in-context-typology-lifecycles-and-social-meanings-in-bronze-age-italy(75f24b6e-2151-496d-89a5-ddccc3a20e72).html.
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This research explores the phenomenon of Bronze Age spearheads between the Middle and Final Bronze Age (18th century-9th century B.C.) in Italy. It will explore how these objects change over time and analyse patterns of distribution as well as changes in depositional context. The thesis consists of a catalogue of examples from the Italian Peninsula which are analysed in two ways: first, a typological sequence has been constructed, in order to identify differences in form, appearance and dimension, in order to analyze chronological and regional variation. Second, edge-wear analysis is conducted on a sample of objects in order to gain an appreciation of how this method can inform the archaeological interpretation of artefact biographies. The premise of such a study is rooted in a theoretical framework which argues that objects embody fundamental aspects of people’s social lives. As weapons for both hunting and warfare, spears embody rich symbolism which was drawn upon by Bronze Age communities, in many different ways. The biographical approach reveals close connections between these objects and the lives of individuals, the places they lived in as well locales which were of ritual importance to them. The edge-wear analysis also suggests that these objects were conceptualized as having lives which were ritually ended through deliberate damage, in addition to natural wear, damage and repair. These studies are situated within broader traditions of northern European archaeological evidence. The thesis concludes by arguing this biographical approach considerably enriches more traditional typological approaches to material culture. When used in combination with the study of the context of deposition, it suggests Mediterranean scholarship on prehistoric metallurgy can benefit greatly from these conjoined methodologies.
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Hudson, Zoe Ellen Pearce. "Locations, networks and cycles : studying the everyday life of Richard Stonley (1520-1600)." Thesis, University of Kent, 2017. https://kar.kent.ac.uk/66320/.
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This project explores everyday life in the early modern period and utilises an extended case study examining the diaries of Richard Stonley, in order to develop new methodological strategies for the analysis and interpretation of archival sources. Taking an interdisciplinary approach, the thesis draws on theoretical frameworks from fields including anthropology and material culture studies, and combines qualitative and quantitative modes of analysis. The conclusions of this study draw out effective methods with which to approach highly personal and idiosyncratic, or seemingly mundane archival sources. These methods enable a nuanced understanding of early modern individuals who may fall between established categories, such as 'elite' and 'middling' or 'urban' and 'rural'. The three surviving volumes of Richard Stonley's unpublished diary, dating from 1581 to 1597, contain large amounts of information about daily life at his homes in London and Essex, and in the Fleet prison where he resided in the final years of his life following a serious debt problem. As a Teller of the Exchequer, Richard Stonley also spent much of his time working at the Receipt at Westminster. These four locations would have been inhabited by Stonley on a regular or daily basis, and they were the sites for numerous routine activities recorded in the diary entries and in other archival sources, including inventories and accounts. Social interactions were also recorded in the diary, allowing for an analysis of his quotidian social network, alongside behaviours connected to both routine activities and special occasions. This thesis demonstrates that rather than viewing everyday life merely as a category of activities or objects centered around a domestic setting, this theme can be utilised as a lens through which to examine challenging or dense historical sources. This methodological approach includes exploring a wide range of archival evidence in detail, generating a deeper understanding of the working practices and daily tasks undertaken by historic individuals in the navigation of their quotidian lives and the creation of their social and cultural identities.
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Lesueur, Charles. "Détermination des caractéristiques biologiques de la population de truite de mer (Salvelinus fontinalis) de la rivière ÉternitÉ (Saguenay) /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1993. http://theses.uqac.ca.
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Haig, David. "Applications of allocation and kinship models to the interpretation of vascular plant life cycles." Phd thesis, Australia : Macquarie University, 1990. http://hdl.handle.net/1959.14/23227.
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Thesis by publication.Thesis (PhD) -- Macquarie University, School of Biological Sciences, 1990.
Bibliography: leaves 269-324.
Introduction -- Models of parental allocation -- Sex expression in homosporous pteridophytes -- The origin of heterospory -- Pollination and the origin of the seed habit -- Brood reduction in gymnosperms -- Pollination: costs and consequences -- Adaptive explanations for the rise of the angiosperms -- Parent-specific gene expression and the triploid endosperm -- New perspectives on the angiosperm female gametophyte -- Overview -- Glossary -- Kinship terms in plants -- Literature Cited.
Among vascular plants/ different life cycles are associated with characteristic ranges of propagule size. In the modern flora, isospores of homosporous pteridophytes are almost all smaller than 150 urn diameter, megaspores of heterosporous pteridophytes fall in the range 100-1000 urn diameter, gymnosperm seeds are possibly all larger than the largest megaspores, but the smallest angiosperm seeds are of comparable size to large isospores. -- Propagule size is one of the most important features of a sporophyte's reproductive strategy. Roughly speaking, larger propagules have larger food reserves, and a greater probability of successful establishment, than smaller propagules, but a sporophyte can produce more smaller propagules from the same quantity of resources. Different species have adopted very different size-versus-number compromises. The characteristic ranges of propagule size, in each of the major groups of vascular plants, suggest that some life cycles are incompatible with particular size-versus-number compromises. -- Sex expression in homosporous plants is a property of gametophytes (homosporous sporophytes are essentially asexual). Gametophytes should produce either eggs or sperm depending on which course of action gives the greatest chance of reproductive success. A maternal gametophyte must contribute much greater resources to a young sporophyte than the paternal gametophyte. Therefore, smaller gametophytes should tend to reproduce as males, and gametophytes with abundant resources should tend to reproduce as females. Consistent with these predictions, large female gametophytes release substances (antheridiogens) which induce smaller neighbouring ametophytes to produce sperm. -- The mechanism of sex determination in heterosporous species appears to be fundamentally different. Large megaspores develop into female gametophytes, and small icrospores develop into male gametophytes. Sex expression appears to be determined by the sporophyte generation. This is misleading. As argued above, the optimal sex expression of a homosporous gametophyte is influenced by its access to resources. This is determined by (1) the quantity of food reserves in its spore and (2) the quantity of resources accumulated by the gametophyte's own activities. If a sporophyte produced spores of two sizes, gametophytes developing from the larger spores' would be more likely to reproduce as females than gametophytes developing from the smaller spores, because the pre-existing mechanisms of sex determination would favor production of archegonia by larger gametophytes. Thus, the predicted mechanisms of sex determination in homosporous species could also explain the differences in sex expression of gametophytes developing from large and small spores in heterosporous species.
Megaspores of living heterosporous pteridophytes contain sufficient resources for female reproduction without photosynthesis by the gametophyte (Platyzoma excepted), whereas microspores only contain sufficient resources for male reproduction. Furthermore, many more microspores are produced than megaspores. A gametophyte's optimal sex expression is overwhelmingly determined by the amount of resources supplied in its spore by the sporophyte, and is little influenced by the particular environmental conditions where the spore lands. Gametophytes determine sex expression in heterosporous species, as well as homosporous species. A satisfactory model for the evolution of heterospory needs to explain under what circumstances sporophytes will benefit from producing spores of two distinct sizes. -- In Chapter 4, I present a model for the origin of heterospory that predicts the existence of a "heterospory threshold". For propagule sizes below the threshold, homosporous reproduction is evolutionarily stable because gametophytes must rely on their own activities to accumulate sufficient resources for successful female reproduction. Whether a gametophyte can accumulate sufficient resources before its competitors is strongly influenced by environmental conditions. Gametophytes benefit from being able to adjust their sex expression in response to these conditions. For propagule sizes above the threshold, homosporous reproduction is evolutionarily unstable, because the propagule's food reserves are more than sufficient for a "male" gametophyte to fertilize all eggs within its neighbourhood. A population of homosporous sporophytes can be invaded by sporophytes that produce a greater number of smaller spores which could land in additional locations and fertilize additional eggs. Such'spores would be male-specialists on account of their size. Therefore, both spore types would be maintained in the population because of frequency-dependent selection. -- The earliest vascular plants were homosporous. Several homosporous groups gave rise to heterosporous lineages, at least one of which was the progeniture of the seed plants. The first heterosporous species appear in the Devonian. During the Devonian, there was a gradual increase in maximum spore size, possibly associated with the evolution of trees and the appearance of the first forests. As the heterospory threshold was approached, the optimal spore size for female reproduction diverged from the optimal spore size for male reproduction. Below the threshold, a compromise spore size gave the highest fitness returns to sporophytes, but above the threshold, sporophytes could attain higher fitness by producing two types of spores. -- The evolution of heterospory had profound consequences. Once a sporophyte produced two types of spores, microspores and megaspores could become specialized for male and female function respectively. The most successful heterosporous lineage (or lineages) is that of the seed plants. The feature that distinguishes seed plants from other heterosporous lineages is pollination, the capture of microspores before, rather than after, propagule dispersal. Traditionally, pollination has been considered to be a major adaptive advance because it frees sexual reproduction from dependence on external fertilization by freeswimming sperm, but pollination has a more important advantage. In heterosporous pteridophytes, a megaspore is provisioned whether or not it will be fertilized whereas seeds are only provisioned if they are pollinated.
The total cost per seed cannot be assessed solely from the seed's energy and nutrient content. Rather, each seed also has an associated supplementary cost of adaptations for pollen capture and of resources committed to ovules that remain unpollinated. The supplementary cost per seed has important consequences for understanding reproductive strategies. First, supplementary costs are expected to be proportionally greater for smaller seeds. Thus, the benefits of decreasing seed size (in order to produce more seeds) are reduced for species with small seeds. This effect may explain minimum seed sizes. Second, supplementary costs are greater for populations at lower density. Thus, there is a minimum density below which a species cannot maintain its numbers. -- By far the most successful group of seed plants in the modern flora are the angiosperms. Two types of evidence suggest that early angiosperms had a lower supplementary cost per seed than contemporary gymnosperms. First, the minimum size of angiosperm seeds was much smaller than the minimum size of gymnosperm seeds. This suggests that angiosperms could produce small seeds more cheaply than could gymnosperms. Second, angiosperm-dominated floras were more speciose than the gymnosperm-dominated floras they replaced. This suggests that the supplementary cost per seed of angiosperms does not increase as rapidly as that of gymnosperms, as population density decreases. In consequence, angiosperms were able to displace gymnosperms from many habitats, because the angiosperms had a lower cost of rarity. -- Angiosperm embryology has a number of distinctive features that may be related to the group's success. In gymnosperms, the nutrient storage tissue of the seed is the female gametophyte. In most angiosperms, this role is taken by the endosperm. Endosperm is initiated by the fertilization of two female gametophyte nuclei by a second sperm that is genetically identical to the sperm which fertilizes the egg. Endosperm has identical genes to its associated embryo, except that there are two copies of maternal genes for every copy of a paternal gene. -- Chapter 9 presents a hypothesis to explain the unusual genetic constitution of endosperm. Paternal genes benefit from their endosperm receiving more resources than the amount which maximizes the fitness of maternal genes, and this conflict is expressed as parent-specific gene expression in endosperm. The effect of the second maternal genome is to increase maternal control of nutrient acquisition. -- Female gametophytes of angiosperms are traditionally classified as monosporic, bisporic or tetrasporic. Bisporic and tetrasporic embryo sacs contain the derivatives of more than one megaspore nucleus. Therefore, there is potential for conflict between the different nuclear types within an embryo sac, but this possibility has not been recognized by plant embryologists. In Chapter 10, I show that many previously inexplicable observations can be understood in terms of genetic conflicts within the embryo sac.
Mode of access: World Wide Web.
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Iwaarden, Joos Daniël van. "Changing quality controls the effects of increasing product variety and shortening product life cycles /." [Rotterdam] : Rotterdam : Erasmus Research Institute of Management (ERIM), Erasmus University Rotterdam ; Erasmus University [Host], 2006. http://hdl.handle.net/1765/7992.
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Wall, David Gordon. "A study of variations in leadership styles and organizational climate across organizational life cycles /." Access abstract and link to full text, 1989. http://0-wwwlib.umi.com.library.utulsa.edu/dissertations/fullcit/9010782.
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Bladon, T. P. "Energy-partitioning and reproduction in two species of freshwater triclads with contrasting life cycles." Thesis, University of Glasgow, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375446.
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Mekonnen, Wassie Shimelis. "Modularization of a washing machine and study its potential in implementing multiple life-cycles." Thesis, KTH, Industriell produktion, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-200896.
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Oscarsson, Jan. "Enhanced virtual manufacturing : advanced digital mock-up technology with simulation variances." Thesis, De Montfort University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391840.
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Samuels, Fiona. "We Kaonde we don't migrate : the stretching of contemporary Kaonde life-worlds between rural and urban." Thesis, University of Sussex, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368136.
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Demade, Maxime. "Analyse sociale de cycles de vie : les cycles de vie des représentations paysagères de l'éolien." Thesis, Bordeaux 3, 2018. http://www.theses.fr/2018BOR30047/document.
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L’utilisation croissante du vocable de la transition dans le débat public contribue à l’émergence de nouvelles méthodes de recherche dont les géographes commencent à se saisir. La transition invite à réfléchir dans un cadre d’action nouveau. Appliquée au domaine des énergies, elle rencontre le géographe dans ses interprétations des dynamiques spatiales. Ce cadre spatio-temporel inédit, où sont introduites les notions de territorialisation de l’énergie et de réversibilité, constitue une opportunité pour le géographe de penser ces enjeux nouveaux selon des approches du couple espace-temps réinterprétées. Dans ce contexte, la thèse vise à comprendre et à analyser les mécanismes socio-spatiaux mis à l’épreuve par le développement des énergies renouvelables, et plus particulièrement des éoliennes. La spécificité de la démarche réside dans une traduction géographique de l’Analyse de Cycle de Vie. Pour ce faire, la thèse réinvestit le concept de paysage dans son interprétation dynamique. Cependant, l’analyse de cycle de vie nous invite à repenser la dynamique paysagère selon la notion d’événement. La thèse interroge l’arrivée d’un projet éolien comme un événement et s’intéresse à ses modes de surgissement, les déstabilisations socio-spatiales induites et les mécanismes de régulation entrepris par les individus. L’objectif de la recherche est d’expérimenter la conduite d’une Analyse sociale de Cycle de Vie des représentations paysagères de l’éolien. L’ambition se voit confrontée à une contrainte majeure, celle du temps. Le temps imparti de la thèse rencontre les temps politiques et les temps de l’expérience. Événements construits ou événement subis, ils impactent différemment les représentations socio-spatiales selon des échelles de temps variables. L’intention d’une recherche diachronique nous enjoint à réfléchir aux enjeux épistémologiques et méthodologiques stimulants de l’élaboration d‘un corpus particulier où peuvent être analysées conjointement des données de natures et de sources diverses. L’analyse est menée sur les discours et particulièrement sur les références spatiales et les sensibilités des individus face à l’arrivée d’éoliennes sur un territoire. La thèse retrace les étapes des cycles de vie de l’événement-éolien traduites et interprétées selon les contextes de terrainsThe increasing use of the transition terms in the public debate contributes to the emergence of new research methods whom geographers begin to apprehend. Transition invites to consider a new action framework. In the matter of energy domain, the transition concept involves geographers in their socio-spatial interpretations. This new spatiotemporal frame, where are introduced the notions of territorialisation of the energy and the reversibility, provides an opportunity to consider these issues from a reinterpretation of the space-time couple. In this context, the thesis aims in understanding and analyzing of socio-spatial mechanisms tested by the renewable energies development, especially wind turbines. The specificity of this approach may be a geographical rendition of the Life Cycle Assessment method. For this purpose, the thesis requires the concept of landscape in its dynamic meaning. However, the life cycle assessment invites us to reshape the idea of landscape dynamics according to the notion of event. The thesis explores the arrival of a wind turbines project as an event and it focus on its sudden emergence, the induced socio-spatial destabilizations and the individual and social adaptations. The purpose of this research is to investigate a Social Life Cycle Assessment of the landscape representations of the wind energy. This ambition faces a time constraint. The allowed time of a PhD thesis faces political times and the times of the experience. Created events or suffered events impact the socio-spatial representations differently and over various timescales. Considering a diachronic study brings about rethinking the epistemological and methodological issues raised by a corpus which gathers several types of data, from different sources and which would be analyzed together. The analysis is led on discourses and especially on spatial textual references along with the individual sensibilities revealed when a wind turbines project is initiated on territory. The thesis tracks the life cycle steps of windpower-events that we interpret according to the socio-spatial context of the study terrains
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Cambray, James Alfred. "A comparative study of the life histories of the sister species, Pseudobarbus afer and Pseudobarbus asper, in the Gamtoos River system, South Africa." Thesis, Rhodes University, 1993. http://hdl.handle.net/10962/d1015730.
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This thesis explores the biology, ecology, and life-history styles of two closely-related redfin minnows, Pseudobarbus afer and P. asper (pisces; Cyprinidae), which both occur in the Gamtoos River system of South Africa. Five of the seven species of flexible-rayed redfin minnows are in the South African Red Data Book - Fishes. This investigation was designed to provide the data which would enable conservation authorities to manage the remaining populations of the Pseudobarbus species. A thorough understanding of the Gamtoos River system was necessary to properly interpret the findings of this study. The palaeo river systems and the changing climates since the break-up of Gondwanaland are discussed so that the present day environments could be considered as well as the past environmental changes. P. afer and P. asper occur in the Gamtoos River system with no physical barrier separating the two species. P. afer only occurs in the clear mountain streams of the Cape Fold Mountain Belt whereas P. asper occurs in the highly saline and turbid Karoo section of the system. P. afer were found to be the more precocial form of the sister species. They had bigger eggs, lower relative fecundity, shorter breeding season, lower gonadosomatic indices, larger first feeding larval fish, matured later and had a longer life-span than did P. asper, which had more altricial life-history attributes. They differ in their tradeoffs with P. asper devoting more resources earlier to reproduction and having a shorter lifespan. The improvement in the one aspect of fitness (early maturity) leads to the deterioration in another, namely lifespan. Both species undertake breeding migrations to riffle areas where they spawn in mid-channel immediately above a pool after an increase in water flow. P. afer and P. asper are non-guarders of their non-adhesive eggs and young, open substrate spawners on coarse substrates (rocks) and have photophobic free embryos. The breeding season is shorter for P. afer whereas P. asper can spawn as late as April and impoundment releases can induce them to spawn. A study of comparative neuroecology revealed that of the four groups of fish analyzed (males and females of both species) male P. afer had the largest brains, especially the optic lobes and cerebellum. P. asper females had the smallest brains. No neural compensation in the external gustatory centre, the facial lobe, was found for P. asper inhabiting the turbid waters. P. afer also had significantly larger eyes and longer barbels. P. afer males were also found to have the highest density and largest nuptial tubercles as well as the most pronounced breeding colouration. It was concluded that P. asper is the more derived of the sister species pair with regard to life-history attributes. It is further suggested that investment per offspring is important in determining the life-history trajectories. Paedomorphosis has occurred and by this mechanism variability has been restored to the redfin minnows in the Groot River which enables them to survive in the highly variable, intermittent Karoo stream. The more precocial P. afer do not require this variability in the more constant and predictable environment of the Wit River.
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Birmele, Etienne. "Etude structurelle des réseaux : modèles aléatoires, motifs et cycles." Habilitation à diriger des recherches, Université d'Evry-Val d'Essonne, 2011. http://tel.archives-ouvertes.fr/tel-00750375.
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Cette habilitation présente une vue d'ensemble de mes travaux concernant l'analyse statistique et algorithmique de la structure des réseaux, et en particulier des réseaux biologiques. Il est structuré en trois parties. La première concerne l'étude de modèles de graphes aléatoires, notamment ceux basés sur la notion de mélange. Les questions de l'estimation de leur paramètres et de la classification des sommets y sont notamment abordées. La seconde partie est consacrée au développement statistique de la détection de motifs dans les réseaux, et en particulier dans le cadre de la notion de motif local. Enfin, le troisième chapitre reprend des thèmes liés à l'algorithmique et à la théorie des graphes en illustrant par deux exemples l'importance de la structure des cycles d'un réseau.
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Lockett, Charles E. "We bomb, therefore we are : the evolution of terrorist group life cycles/ Charles E. Lockett." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1994. http://handle.dtic.mil/100.2/ADA280394.
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Evans, Katherine J. "A quantitative analysis of the physical mechanisms governing the life cycles of persistent flow anomalies." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/26013.
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Chen, Chih-Chin. "Interactions of NK cells with human cytomegalovirus during the viral latent and lytic life cycles." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709176.
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Hare, Sylvia. "Baroclinic developments in jet entrances and exits." Thesis, University of Reading, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301899.
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Van, Heerden Desireé. "The biology of Palexorista laxa (Curran) (Diptera : Tachinidae) : an internal larval parasitoid of Heliothis armigera (Hübner) Lepidoptera : Noctuidae)." Thesis, Rhodes University, 1993. http://hdl.handle.net/10962/d1005332.
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The Tachinid fly, Palexorista laxa (Curran) is an important parasitoid of Heliothis armigera (Hubner) in Africa and India. The biological characteristics of the parasitoid were studied with an emphasis on its host instar preference, host range, seasonality and percentage parasitism. The developmental stages were also studied and described. A high host mortality (48%-100%) due to parasite attack occurred when small larvae were parasitised (2nd & 3rd instars). A preference for the 4th and 5th host instars was shown by the flies. P. laxa was found to be a non-specific parasitoid and parasitised a number of lepidopterous larvae in the laboratory including Busseola fusca (Fuller), Chilo partellus (Swinhoe) and Eldana saccharina Walker, but preferred Ii. armigera. The percentage parasitism on H. armigera in the field was variable peaking at 48% in 1988/89. Of the various parasitoids recorded from H. armigera on sunflower P. laxa was by far the most abundant. Mating occurred immediately after emergence with the males emerging a day earlier than the females. Males were capable of multiple matings whereas females mated only once in a lifetime. P. laxa females produced incubated macrotype eggs which hatched almost immediately after oviposition. The duration of development of the incubated egg and larval stage was 6,7 days, the pupa 10,4 days for females and 9,4 days for males, and the adult lived up to 50 days at 25°C. A reduction in pupal weight, an increase in the duration of the pupal stage and higher pupal mortality accompanied an increase in density of parasitoids per host. A linear relationship was shown between adult mass and number of ovarioles and eggs in P. laxa females. The oviposition period was 26,9 days with a high variation in daily progeny production. The total fertility per female was 126,3 puparia. "Inexperienced" females deposited incubated eggs on all parts of the host body while "experienced" females confined oviposition to the head and thorax. P. laxa females did not discriminate between previously parasitised and non-parasitised hosts. The effect of temperature on larval and pupal survival and development time was studied at 20°, 22°, 25°, 28°and 30°C. As expected, duration of development decreased with an increase in temperature, and there was a reduction in mortality.
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Vassallo, Helen Marie. "Cycles of dis(-)ease : life writing and the female subject in the works of Jeanne Hyvrard." Thesis, University of Exeter, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414257.
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Zhang, Yi. "Ecologically-based LCA an approach for quantifying the role of natural capital in product life cycles /." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1222102539.
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