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Dissertations / Theses on the topic 'Production relationships'
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1
Mumssen, Christian. "Essays on the theory of policy towards externalities." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363678.
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Powney, Martin. "Relationships between morphology and antibiotic production in streptomycetes." Thesis, University of Hertfordshire, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303431.
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Penglis, Peter Savas. "The relationships between eicosanoid production and pro-inflammatory cytokines." Title page, contents and summary only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09php3985.pdf.
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Includes bibliographical references (leaves 182-240). Explores alternate strategies that may alter inflammatory cytokine production, particularly tumour necrosis factor đ [tumor necrosis factor-alpha], and therefore provide a possible treatment for rheumatoid arthritis.
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Mulhall, Rachel Ann. "Manufacturing change : competitiveness and adjustment through evolving production relationships." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4046/.
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Manufacturing is a vital and significant element of the British economy. The sector has made a transition towards the production of higher value-added products and services to remain competitive in increasingly international markets. A highly skilled and competitive supply base is central to the viability of the sector as tasks once undertaken by end-manufacturers are increasingly being absorbed into the portfolio of functions undertaken by the supplier. This thesis examines how one supply industry, intermediate metal processing (IMP), is adjusting to international competition in the context of increasingly complex dependencies in the supply chain. An intensive study of IMP manufacturers in the West Midlands (UK) was undertaken through qualitative interviews and desk based research to understand the current challenges and opportunities the industry faced. The analysis is focused on the transition to higher value manufacturing and the complexity of buyer-supplier relationships. This is developed through a case study analysis of the industry’s adjustment to rising industrial energy costs and a detailed examination of customer agreement structures in shaping transactional governance structures. The research makes a contribution to current conceptions of the spatial organisation of production and the nature of production relationships. Mature industries, such as metal component manufacture, are successfully undertaking complex and varied forms of adaptation to remain competitive. Despite transitions to value-added products, costs continue to be an important element to both competitiveness and viability. Production relationships, and specifically the nature of the inter-firm agreement, are a significant aspect of adjustment and the capacity to capture value through governance mechanisms. Contracts are a relatively under represented factor of inter-firm relationships but are found to be central to the adaptability of firms, the attainment of value and stability of the business.
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Babcock, Esther. "Soil Testing and Plant Analysis Relationships for Irrigated Chile Production." Thesis, The University of Arizona, 2010. http://hdl.handle.net/10150/193428.
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In a field study of irrigated chile (Capsicum annum L.) production in southeastern Arizona and southwestern New Mexico from 2008 through 2009, soil and tissue test samples were analyzed for a full spectrum of nutrients at 16 different sites, including nitrogen (N) phosphorus (P), potassium (K), zinc (Zn), iron (Fe), and boron (B), with the objective of evaluating soil and tissue nutrient testing procedures and establishing basic testing guidelines and recommendations with respect to yield potentials. Results for soil and tissue analysis were correlated to yield results. The results provide estimates for baselines which can be tested through subsequent calibration experiments for the development of recommendations for critical soil and tissue test values. These soil test and plant nutrients values will be evaluated in subsequent experiments in an effort to better define fertilizer nutrient inputs in order to gain better nutrient management efficiencies in irrigated chile production systems.
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Lively, F. O. "Relationships between production characteristics , post slaughter treatment and meat quality." Thesis, Queen's University Belfast, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437843.
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Hermanson, Doug Matthew. "The Impact of Biofuel Production on Energy and Agricultural Price Relationships." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1213203572.
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Karlsson, Agnes. "Initiating Relationships in Destination Marketing : A Case Study of the Wallander Film Production." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-317273.
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This thesis focuses on the process of initiating relationships in destination marketing and includes an in-depth case study of the Wallander film series. Destination marketing is unique due to its dependency on relationship creation – typically, dynamic contacts have to be established between the film company, its financial sponsors and the stakeholders in the designated destination. In order to understand how these relationships are created and their dynamics, this thesis explores the factors that impact the process of initiating relationships, called converters and inhibitors. The results reveal that views differ between the film production company and the regional authorities tied to the destination as to which factors that act as converters and inhibitors. While both parties agree that striving for mutual understanding & social chemistry are important converters, the production company further adds a receptive attitude & motivated approach and creatively driven visionaries as vital converters. The regional authorities on the other hand highlight mutual respect, passion/courage-driven visionaries and structure, transparency & communication as key converters. As for the inhibitors, the production company points to lack of motivation, lack of resources and lack of open-mindedness, while the regional authorities highlight lack of mutual understanding & respect, bureaucratic layers and industry-related cultural differences.
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Harney, Liam. "Pragmatism, knowledge production and democratic renewal : the E14 Expedition." Thesis, Queen Mary, University of London, 2017. http://qmro.qmul.ac.uk/xmlui/handle/123456789/30626.
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Western democracies are characterised by a significant level of distrust and widespread feelings of disenfranchisement amongst ordinary citizens. The rise of populist political parties, figures and movements reflects the gradual development of a strong and increasingly vocal anti-establishment sentiment amongst millions of people who feel that the ideas and actions of political elites and experts are at odds with and do not represent their own lives. As sites where political elites are educated and socialised, universities (and the knowledge they produce) have a role in both causing and potentially solving this democratic deficit. There is a role for universities to alter their epistemological practices in ways that respect and give voice to the multiplicity of experiences, beliefs and issues in the world. There is also scope for universities to engage in civic education both on and off campus. This thesis reflects on an experiment that attempted to do this, applying the principles of philosophical pragmatism and the democratic vision of John Dewey in a participatory research project in east London to convene publics of citizens around pressing social issues and develop their power to effect change. This experiment highlighted the importance of having an underlying, place-based, civic infrastructure comprising relationships and sociality to do this work. There were further challenges in adequately respecting pluralism in a diverse world, and building citizen power in a context where experts are deemed to know best. The thesis ends by examining the wider lessons of this experiment. It looks at the potential of community-university partnerships to act as vehicles for democratic renewal, arguing that universities have the potential to re-cast themselves as mediating institutions to facilitate democracy in their local communities.
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Koepfler, Eric Thor. "Heterotrophic bacterial production: Relationships to biological and abiological factors in estuarine environments." W&M ScholarWorks, 1989. https://scholarworks.wm.edu/etd/1539616721.
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Section 1. Ecotoxicological effects of creosote contamination on benthic bacterial communities in the Elizabeth River, Virginia were investigated using both structural and functional microbial parameters. Results indicated that cell specific and total heterotrophic bacterial production parameters were depressed in a dose dependent manner with increasing sediment PAH concentrations. Toxicity effects upon production were modified by temporal trends associated with temperature as well as spatial sediment characteristics. of the parameters employed, the tritiated thymidine production assay was found to be the most sensitive for detection of ecotoxicological effects. Section 2. Bacterial abundance and production were examined during a destratification event in the lower James River, Virginia. Bacterial abundance, although significantly different between stations, did not change over the study. Bacterial production (&\sp3&H-Tdr incorporation) in surface waters was significantly less during the mixed period (187 &\mu&g C&\cdot&1&\sp{lcub}-1{rcub}\cdot& d&\sp{lcub}-1{rcub}&) compared to the most stratified state (324 &\mu&g C&\cdot&1&\sp{lcub}-1{rcub}\cdot& d&\sp{lcub}-1{rcub}&). Correlations between bacteria and chlorophyll were diminished during the mixed period. Total and flagellate specific grazing rates upon bacteria were reduced during the onset of destratification. Relationships between bacterial and nutrient parameters also indicated a strong influence of destratification. These results indicate that destratification changes trophic interactions within the microbial loop, which are not necessarily reflected in temporal patterns of bacterial abundance. Section 3. Bacterioplankton production, and ammonium assimilation and remineralization were examined between April and August 1988 in the lower York River, Va. Size fractionation enabled estimates of bacterial contribution (&&15 &\mu&m) towards ammonium cycling processes. Bacterial ammonium assimilation accounted for 19-95% of total dark ammonium assimilation, with station means of 46-48%. Station means of ammonium remineralization in the &<&1.6 &\mu&m treatment was 92, 48, and 38% of unfractionated values from lower to the upper river stations respectively. Regression statistics indicated that assimilation was best predicted by bacterial production. Remineralization was less well predicted by all variables. These results indicate the importance of bacteria in ammonium cycling can be greatly disproportionate to their biomass and production.
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Wilkie, Rhoda. "Sentient commodities : human-livestock relations from birth to slaughter in commercial and hobby production." Thesis, University of Aberdeen, 2002. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=165516.
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This thesis is a sociological exploration of how people involved in commercial and hobby livestock production, in Northeast Scotland, make sense of their relations with livestock, from birth to slaughter. I carried out an ethnographic study that combines fieldwork and unstructured interviewing to elicit how mart workers, auctioneers, vets, farmers, stockmen, hobby farmers and slaughter workers regard and interact with livestock. Although livestock are the raw materials of production, I show that the commodity status of livestock is variable and that people's relationships with livestock are complex, dynamic and ambiguous. One of the main reasons for ambiguity is that livestock are sentient and social begins: they have the capacity to engage in social relations with each other and with those who work closest with them. In effect, livestock are commodified sentient beings but to draw attention to people's difficulty in classifying and relating to them, I suggest they are sentient commodities. I argue that people's attitude, feeling and behaviour, towards livestock is systematically related to the place they, and their animals, occupy in the commercial and non-commercial production process. For instance, breeding animals are more likely to be regarded as individuals whilst slaughter animals are anonymously processed as part of a de-individualised batch. Similarly, people attend to express varying degrees of emotional attachment to livestock at the breeding end of the process and varying degrees of emotional detachment towards livestock destined for slaughter. Any animals, however, that requires additional handling or deviates from the routine is included to stand out from the herd, will acquire more meaning for the worker, and will become more than 'just an animal'. People who work with livestock are therefore faced with the challenge of negotiating the contradictory demands of being empathetic carers and economic producers of livestock.
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King, Yao-Chung. "Materials production economics : an examination of the variables and relationships that drive materials production and recycling in the world economy." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35063.
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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2006.Includes bibliographical references (p. 29).
Introduction: New materials are being developing each year that could revolutionize the world. However, while development of novel materials in the lab brings us one step closer to next latest-and-greatest innovation, the following and perhaps similarly difficult step requires bringing these materials to the world market. Indeed, "although U.S. firms have invested the majority of materials introduced over the past half-century, they have failed to commercialize many of these innovations" (Eagar, 98). For a material introduction to be successful, it will be useful to understand the trends involved within the market for such an introduction and for continuing survival.
by Yao-Chung King.
S.B.
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Stout, Benjamin Mortimer. "Effects of forest disturbance on shredder production in headwater streams." Diss., Virginia Tech, 1990. http://hdl.handle.net/10919/39796.
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Babíková, Zděnka. "How do interactions between herbivores and mycorrhizal fungi regulate production of plant signalling compounds and parasitoid behaviour?" Thesis, University of Aberdeen, 2013. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=203957.
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The aim of this PhD was to investigate major gaps in our understanding of how mycorrhizal fungi and aphids interact via their effects on plants, and how these interactions regulate emission of plant volatiles and consequently aphid and parasitoid host location. A series of experiments was designed using broad bean (Vicia faba L.), pea aphids (Acyrthosiphon pisum) and their parasitoid wasp, Aphidius ervi and mixed or single spore cultures of AM fungi as a model system. This PhD has determined that arbuscular mycorrhizal fungi are more important drivers of above-ground ecological interactions than ever considered before. They have key roles in specialist aphid host location and in influencing their development. The antagonistic effect of aphids on functioning of mycorrhizal association suggests that the interactions operate in both directions. However, if plants were supplied with phosphorus the aphids did not affect mycorrhizal colonisation suggesting that at sufficient phosphorus availability plants can tolerate the effect of aphids on mycorrhizal colonisation. This demonstrates how dynamic the multi-trophic systems are and that their outcomes are also influenced by soil nutrient availability, with implications for agricultural practices. This PhD has discovered that underground signals carried through common mycelial networks warn neighbouring plants of aphid attack. This signalling allows plants that receive the signal to initiate their defence system by changing their profiles of volatiles emissions and repel aphids and attract their parasitoids so that they may prevent the attack. Because the signal transfer is rapid it incurs the greatest fitness benefit for the receiving plant and potentially also for the donor of the signal and for the fungi. We now need to determine the wider ecosystem implications of this phenomenon, how the signalling is regulated in nature and in agroecosystems and what the fitness consequences are for each component organism.
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Rosales, Rolando Barahona. "Condensed tannins in tropical forage legumes : their characterisation and study of their nutritional impact from the standpoint of structure-activity relationships." Thesis, University of Reading, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298970.
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Wagter, Lauraine Claire. "Phenotypic relationships between immune response, disease occurrence, and production in periparturient Holstein dairy cows." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0003/MQ31874.pdf.
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Dakessian, Areck Ardack. "Casting nets and framing films : an ethnography of networks of cultural production in Beirut." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31464.
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Filmmakers first received widespread academic attention as case studies into the increasing casualisation of labour in post-industrial economies. Their precarious existence in project-based labour markets provided much food for thought about the future of work, while their status as artists and producers of culture entered them into debates around just what art is and how to approach it. But in light of recent transformations in the cultural industries and the accompanied blurring of boundaries between production and consumption, academic understandings of the lives filmmakers lead have also been somewhat blurred. This ethnography of networks of cultural production in Beirut re-introduces filmmakers into the very sociological debates that they helped spark. Might a return to the situated experience of these theoretically and methodologically challenging people, who form workgroups and collaborate with each other repeatedly across projects as they craft their own careers, shed productive light on academic understandings of precarity, cultural production and indeed our increasingly confusing relationships with the objects around us? With that in mind, in this thesis I ask the following research question: how are networks of film production formed and maintained in Beirut? Based on an 'insider' ethnography of various film projects weaved into a mixed-methods social network analytic methodology, I adopt a relational sociological approach that conceives of production networks as akin to social worlds and find three analytic planes to delve deeper into: markets, objects and relationships. In relation to markets, I echo the argument that current classification systems of cultural production are too consumption-based and adopt a social network markets framework more sensitised towards production. Here, I find that the cyclical, project-based relationship of patronage that ties production networks to their clients is highly varied and contingent, shaping not only the process of cultural production but also its organisational structure. Further, I argue that the management of these contingencies is key to the potential repeat collaboration not just with clients (and their own social networks), but fellow producers as well. But past projects do not simply disappear once completed, they might well come back to haunt their makers. Drawing upon ethnographic and recent historical data on a number of web-series that emerged out of Beirut between 2009 and 2012, I compare using two-mode networks the past and more recent projects my interlocutors were involved in. Here, I find that one's past projects shape one's future by conducing or hindering their chances of finding new work. Moreover, and perhaps more importantly, I find that filmmakers (and those around them) increasingly define themselves (and are defined by others) in relation to the past projects they have done. Over time, though, as filmmakers collaborate on an increasing number of films, their relationships take on deeper characteristics than monochrome economic considerations. Here I draw upon the notion of embeddedness to shed light on emergent meaning at the network level across a number of projects and, therefore, the emergent social world-ness of networks. While the first set of findings relates to debates in the sociology of work and the second to those in the sociology of cultural production, my final analysis shows just how intimately the two are connected. I conclude by highlighting the potential of empirically-grounded relational sociological approaches to finessing our understandings of cultural work in its economic, social, but also material and technical contingencies.
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BALENTINE, VICKI MCLEOD. "THE EFFECTS OF QUESTION GENERATION TRAINING ON READING COMPREHENSION AND QUESTION PRODUCTION (STUDENT, ANSWER, RELATIONSHIPS)." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/188174.
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Investigates the effects of question generation training on reading comprehension with a focus on the number and types of questions generated. Additionally, this study investigates effects of reading achievement and text difficulty on students' comprehension and question generation abilities. 295 sixth grade students, stratified according to reading achievement, were randomly assigned to one of three treatment groups: question generation training, question generation without training, or control assignment. Within treatments, students were assigned to text versions according to reading scores. Stanines 1-3 were assigned to read the original or adapted version. Stanines 4-9 read the original version. Two phases were involved: (1) the question generation training group participated in one forty minute training session with the researcher that involved a discussion about questioning; a model passage and demonstration of the procedure; group participation in question generation; and individual practice in question generation. Other groups continued regular classroom work during this period. (2) All three groups participated in one testing session involving three fifteen minute activities. Appropriate directions were given and students read the original or adapted version; generated questions or completed a control assignment; and, then completed a thirty-item multiple-choice comprehension measure. An ANOVA indicated a significant treatment effect on reading comprehension in favor of the control assignment over the question generation without training group. Significant differences also resulted in terms of reading achievement: high achievement students scored higher than low achievement students. However, low achievement students who read the adapted version scored significantly higher than those who read the original story. Four ANOVAs indicated significant treatment effects on question production in favor of the question generation training group. Those trained generated significantly more textually explicit and implicit questions and significantly fewer passage nonspecific questions than the untrained group. Significance also resulted in terms of achievement level and text difficulty. Finally, significant differences were noted between low ability students reading original versus adapted versions. Those students who read the original generated significantly more textually explicit and passage nonspecific questions, yet significantly fewer textually implicit questions than those who read the adapted version.
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King, Lucia. "Performance on screen in India : methods and relationships in non-fiction film production, 1991-2011." Thesis, SOAS, University of London, 2012. http://eprints.soas.ac.uk/15861/.
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Mowlah, Naveem M. "Connective architecture : exploring relationships between tectonics of weaving and spatial tectonics of production and display." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/33742.
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Thesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 2005.Includes bibliographical references (leaves 52-53).
An extended sense of the wrap of a fabric is the fiber or essential, a foundation or base. This thesis sprouts from a fascination with the structure of fabric and the loom. On one level, it deals with the tectonics of the woven fabric. On another, it deals with all environment for both process and product (production and display) -- a programmatic arrangement of independent industries but not associated with large scale displays. This thesis explores these two tectonic environments and weaves a series of spaces to create and celebrate the sari -- a stretch of fabric that is simultaneously utilitarian, empowerment, cultural, social and art object. The various elements explored in the research included the heritage of the sari, the Important/image of the sari to women from various backgrounds, the structure of the loom and the methods involved with the process from conception to finish -- pinning, spooling. dyeing, weaving, display and retail. The program aims to create, for the growing South Asian community ill Queens who are caught in a liminal space, a place to celebrate their culture and for visitors to learn more about it through the medium of one of the oldest crafts in South Asia.
by Naveem M. Mowlah.
M.Arch.
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Gillen, Carolyn Ann. "Effects of forest composition on trophic relationships among mast production and mammals in southern Illinois." OpenSIUC, 2011. https://opensiuc.lib.siu.edu/theses/623.
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Oak-dominated forest has declined in the eastern United States as shade-tolerant species (e.g., maple [Acer spp.]) replace oaks (Quercus spp.), sparking concern among ecologists regarding species that consume acorns. My goal was to describe how increasing mesophication of oak forests may affect consumers in higher trophic levels. I investigated relationships among forest composition, mast production, small-mammal density, and carnivore occurrence in 8 stands representing 4 forest types (upland oak, mixed-mesophytic, non-oak, and bottomland oak) in southern Illinois. I calculated tree-species richness, basal area, and other measures of forest composition using 3 0.04-ha plots/stand. In June-August 2009 and 2010, I live-trapped small mammals for 16,236 trap-nights with trapping webs to estimate population density of mice (Peromyscus spp.). I collected mast seeds during October-November 2009 and 2010 and calculated average dry biomass (g/m2) for each species and stand. During winter 2009-2011, I photographed carnivores using baited camera traps and combined these data with those from stands used in a concomitant large-scale carnivore survey. I regressed mast biomass, Peromyscus density, Peromyscus survival, and carnivore occurrence on measures of forest composition and hard-mast biomass. Peromyscus summer density was not related to % hard-mast basal area, nor to hard-mast biomass from the previous autumn. Survival of Peromyscus in 2010 displayed a significant positive relationship with hard-mast biomass in 2009 (F1,6 = 7.85, P = 0.04, r2 = 0.61). Logistic regressions of carnivore occurrence on Peromyscus density were not significant. Coyote (Canis latrans) occurrence at my sites and additional sites during January-April 2010 decreased with increasing % hard-mast basal area (x2 = 4.64, df = 1, P = 0.03). Bobcat (Lynx rufus) and gray fox (Urocyon cinereoargenteus) occurrence showed no relationship with % hard-mast basal area. Many other studies have demonstrated links of several species to oak forest, but the scale of this study may have been too small to detect effects of mesophication. Alternatively, small-mammal density may be influenced by invertebrate prey abundance or weather conditions. The landscape matrix of oak-hickory forest may also act to homogenize Peromyscus density across my study sites. Longer-term research could help clarify relationships among trophic levels. It is important for managers to consider techniques that may conserve oak forest.
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Uselman, Shauna M. "Production and fate of soluble organic carbon, nitrogen, and phosphorus during forest ecosystem development root versus leaf litter /." abstract and full text PDF (free order & download UNR users only), 2006. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3222985.
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Martin, S. M. "A study on the relationships between growth, antibiotic production and morphology in Saccharopolyspora erythraea (Streptomyces erythraeus)." Thesis, University of Surrey, 1994. http://epubs.surrey.ac.uk/682/.
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Beech, S. M. "Structure-property relationships in low alloy Ni-Cr-Mo-V steels manufactured by different production routes." Thesis, University of Manchester, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370389.
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Kgole, M. L. (Matlou Lebogang). "Factors affecting milk urea nitrogen and its relationships with production traits in South African Holstein cattle." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/41116.
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The efficiency of utilization of dietary nitrogen can be monitored using milk urea nitrogen (MUN). Overfeeding or underfeeding of protein can be identified through the observation of deviations from target MUN concentrations. This will assist in lowering feed costs of dairy farms, and improving nutrition management of herds. Higher efficiency of utilization of dietary nitrogen might result in a reduction in environmental pollution. Non-genetic factors affecting variation in MUN were herd-test-day (HTD), lactation stage and year of calving. The contribution of HTD was the highest, ranging from 58.56% to 63.18% in parity 1 to 3. Lactation stage had the second largest contribution to the MUN variation. Differences in least squares means for MUN in various years of calving were observed. The heritability estimate for MUN was 0.09±0.01 in the first parity, and remained constant at 0.11±0.01 in the second and third parity. Heritability estimates for milk, fat and protein yield ranged from 0.40±0.01 to 0.43±0.01, 0.21±0.01 to 0.26±0.01, and 0.32±0.01 to 0.38±0.01, respectively. These estimates were within acceptable ranges for South African Holstein cattle. Genetic correlations between MUN and milk production traits were low and positive, ranging from 0.01±0.003 to 0.10±0.004 across parities. Phenotypic correlations ranged from 0.02±0.11 to 0.16±0.07, being generally higher than the genetic correlations. The positive associations between MUN and milk production traits are undesirable as the dairy cows would be less efficient in utilizing dietary protein and may result in increased environmental pollution. The genetic trend for MUN was 0.44, 0.007 and 0.049 mg/dl in the first, second and third parity, respectively. Results of the current study indicate that MUN has potential as a management tool in South African Holstein dairy herds. It might be a good indicator of the efficiency of dietary protein utilization of dairy herds, and has practical advantage as it is currently collected by the national dairy herd recording and improvement scheme.Dissertation (MSc Agric)--University of Pretoria, 2013.
gm2014
Animal and Wildlife Sciences
unrestricted
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Almond, Kevin. "Suffering in fashion : relationships between suffering, the production of garments and their appropriation as fashionable items." Thesis, University of Huddersfield, 2012. http://eprints.hud.ac.uk/id/eprint/17485/.
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In this commentary, I discuss several publications that explored relationships between suffering, the production of garments and their appropriation as fashionable items. The aim of the research was to investigate the role of suffering in initiating change within the creation and consumption of fashionable clothes. Suffering through pain, anguish or distress is an extreme affliction. Pushing something to its limits of endurance, making it suffer, can undermine order and to survive, it needs to be reassembled in a different way. This concept is somewhat akin to Charles Darwin’s ideas about evolution (1859). A quote attributed to him declared: “It’s not the strongest of the species that survive nor the most intelligent, but the one most responsive to change” (Megginson, 1963, p.4). His work coined the phrase “Survival of the fittest” (Peel, 1992, p.143), introducing the idea that survival is a struggle against environmental change in nature and a species evolves through a process of mutation and retention known as natural selection. In the commercial struggle for survival many fashionable styles are discarded while some remain durable due to their adaptability to new trends and ideas. These could be described as the ‘fittest’ styles surviving through their re-assemblance each season, sustaining the marketable cycle. Suffering in the ways clothes are worn and produced was examined through a number of approaches. Object based research investigated the design and manufacture of fashionable garments. Action based research and semi-structured interviews in a design environment considered the fashion designer’s responses to suffering and the changes it can initiate in production and consumption. The research findings indicate that suffering within the fashion industry can be a positive attribute that may be regarded as a part of life, a prerequisite for hope, a force for change and a source of creativity. It can influence the way clothes are produced and the skills necessary to produce them. A model depicting the connection between suffering and fashion is posited as a tentative theory suggesting there is a spiral relationship: changes in fashion production and consumption resulting from suffering evolve into a spiral of further suffering impacting on future fashion design and production.
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Stetler, Cinnamon Ashley. "Social contacts as modifiers of diurnal cortisol production : a potential pathway between social relationships and health." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/31526.
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Social connections have been linked with morbidity and mortality across decades of research. Although stress buffering and health behavior models have been extensively detailed as pathways for this effect, the direct effects of social contacts on physiology have received less attention. Social contacts may help to regulate biological rhythms, particularly within the hypothalamic-pituitary-adrenal (HPA) axis, a hormonal system known to be influenced by the social environment. Dysregulation of the HPA axis has been associated with psychiatric illnesses such as depression. The current thesis includes three studies that investigated the relationship between social contact and the diurnal pattern of cortisol secretion, as well as the moderating role of depression. These relationships were examined both cross-sectionally and prospectively via daily diary assessment of daily social contacts and salivary cortisol levels. In the first study, depressed women had a blunted cortisol response to waking compared to non-depressed women. Among the non-depressed but not among depressed women, the number of social contacts (especially positive ones) was associated with cortisol response to waking. In the second study, data were analyzed using hierarchical linear modeling and within-person results revealed that cortisol slopes following a day with more social contacts were steeper compared to cortisol slopes following a day with fewer social contacts. In the third study, daily social contacts were manipulated using a within-subjects design. Participants experienced both high and low social contact conditions in the laboratory while continuing to collect ambulatory data on their daily social contacts and cortisol levels. Results show that the manipulation successfully altered daily social contacts, but had no significant effect on cortisol slope. However, there is some evidence to suggest that frequency of contact may be an important moderator of the effect. Although causality has not been definitively demonstrated, findings from these studies suggest that in addition to previously articulated pathways, social relationships may influence health via a direct effect of social contact on physiology.Arts, Faculty of
Psychology, Department of
Graduate
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Zhu, Haiyi. "Essays on Achieving Success in Peer Production: Contributor Management, Best Practice Transfer and Inter- Community Relationships." Research Showcase @ CMU, 2015. http://repository.cmu.edu/dissertations/600.
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Since the late twentieth century, open source software projects (e.g., the GNU/Linux operating system, the Apache web server, Perl and many others) have achieved phenomenal success. This success can be attributed to a new paradigm of productivity in which individuals voluntarily collaborate to produce knowledge, goods and services. Benkler claims this productivity paradigm is a “new, third mode of production” particularly suited for “the digitally networked environment” (2002). In addition to its application to open source software projects, the peer production model, in different forms, has been used in areas such as science/citizen science (Silvertown, 2009), library science (Weinberger, 2007), politics (Castells, 2007; Jenkins, 2006), education (Daniel, 2012), journalism (Gillmor, 2004), and culture (Jenkins, 2006; Lessig, 2004). As peer production has flourished, merely describing successful cases has become less useful. Instead, scholars must identify the dynamics, structures, and conditions that contribute to or impede that success. In this dissertation, I focus on three management challenges at three distinct levels that impede the success of peer production. At the individual level, one significant question is how to best organize individual contributors with differing goals, experience, and commitment to achieve a collective outcome. At the practice level, peer production communities, like corporations, must often transfer best practices from one unit to another to improve performance. This transfer process poses the challenge of how to adapt and modify an original practice to make it effective in the new context. At the community level, peer production communities must learn to survive and succeed in a large ecosystem of related communities. This dissertation combines theoretical approaches in organization science with in-depth empirical analysis on a range of peer production communities to examine the mechanisms that help the communities overcome these three management challenges and succeed in peer production. The contributions of my dissertation are twofold. For scholars and researchers, my dissertation advances the theoretical understanding of the underlying mechanisms of successful peer production systems. For practitioners, my dissertation offers practical advice to build more effective peer production projects and platforms.
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Lister, Garrett Craig. "Price effects of economic and production factors across weights of feeder steers and heifers in southern Great Plains states." Thesis, Kansas State University, 2014. http://hdl.handle.net/2097/17318.
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Master of ScienceDepartment of Agricultural Economics
Ted Schroeder
Feeder cattle are placed into feedlots at varying weights. This placement weight is the result of procurement decisions by cattle feeders and of marketing decisions by cow/calf and stocker/backgrounder producers. Increased understanding of the behavior of these markets can help both buyers and sellers of feeder cattle make these decisions. Past research has used linear or quadratic variables or interaction variables in order to model the effects of weight on price. This study instead divides the market for feeder cattle into ten distinct subsets which are evaluated independently. The feeder cattle market for four major cattle feeding states in the Southern Great Plains (Nebraska, Kansas, Oklahoma and Texas) was divided into ten subsets, five in each gender. Each of these represent feeder cattle coming to market in a 50 pound weight range, centered upon 525, 625, 725, 825 and 925 pounds. Each of these subsets was analyzed using seven independent variables selected based upon previous research and economic rationale. These variables were the live futures price, previous feedlot returns, feeder cattle inventory, interest rate, feedlot capacity utilization, cost of gain and pasture conditions. The data for these variables were collected from public sources, aggregated into monthly observations and differenced to correct for nonstationarity. Analysis was conducted using ordinary least squares regressions. Results are reported and trends between weight classes discussed along with their implications. Findings support that feeder cattle of different weights are not perfect substitutes and that market and production factors do not influence all weights of feeder cattle the same. In fact, factors which positively and negatively affect feeder cattle price seem to signal that demand for, or in the case of pasture supply of, feeder cattle of a particular weight has changed and that placement price-weight relationships will adjust accordingly.
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Sumardi. "The influence of water stress on flowering and fruit production of Capsicum annuum Longum (chilli peppers) /." View thesis View thesis, 1993. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030604.113630/index.html.
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Thesis (M.Sc. (Hons)) -- University of Western Sydney, Hawkesbury, 1993."A thesis submitted in fulfilment of the requirements for the degree of Master of Science (Honours) at the University of Western Sydney, Hawkesbury, School of Horticulture" Bibliography : leaves [126]-145.
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Lowe, Robert Edward. "Estimating the relationships between the state of the art of technology and production cost for U.S. aircraft." Thesis, Monterey, California. Naval Postgraduate School, 1989. http://hdl.handle.net/10945/25901.
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Rosenblum, James S. "The Relationships of Pathogenic Microbes, Chemical Parameters, and Biogas Production During Anaerobic Digestion of Manure-based Biosolids." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1376929611.
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McNett, Gabriel Dion. "Noise and signal transmission properties as agents of selection in the vibrational communication environment." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/4677.
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Thesis (Ph. D.)--University of Missouri-Columbia, 2007.The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on February 25, 2008) Vita. Includes bibliographical references.
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Maile, Kgahliso Desmond. "Responses of Tylenchulus Semipenetrans to crude extracts of indiginous cucumis fruits with and without effective micro-organisms in citrus production." Thesis, University of Limpopo (Turfloop Campus), 2013. http://hdl.handle.net/10386/1323.
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Thesis (M.Agric. (Horiticulture)) --Unversity of Limpopo, 2013The ground leaching technology (GLT) system, using crude extracts of wild cucumber (Cucumis myriocarpus) and wild watermelon (Cucumis africanus) fruits, had been widely researched and developed in management of the root-knot (Meloidogyne species) nematodes in tomato (Solanum lycopersicon) production. In the GLT system, experiments were harvested at 56 days after inoculation with nematodes, which was approximately three generations of Meloidogyne species. Also, studies in GLT systems demonstrated that effective micro-organisms (EM) were not essential in the release of chemicals from crude extracts for nematode suppression, with suggestions that the system exclusively relied upon irrigation or rainwater for leaching out chemicals. However, the system had hardly been tested on other nematode species with longer life cycles and crops. The objective of this study was to investigate the influence of crude extracts of C. myriocarpus (cucurbitacin A-containing phytonematicide) and C. africanus (cucurbitacin B-containing phytonematicide) with and without EM on suppression of population densities of the citrus nematode (Tylenchulus semipenetrans) on rough lemon (Citrus jambhiri) over three generations of the nematode. Two studies, one on C. myriocarpus and the other on C. africanus, with and without EM, were conducted separately using the GLT system under greenhouse conditions with three generations of T. semipenetrans as the standard of application interval of the materials. Citrus seedlings were transplanted in 7-L plastic pots contain 6.5-L pasteurised river sand and Hygromix (3:1 v/v) and inoculated with approximately 25 000 second-stage juveniles (J2s) in 2 × 2 × 2 factorial experiment, where treatments were arranged in a randomised complete block design (RCBD), with six replications. At 150 days after treatment, nematode and plant variables were collected and subjected to factorial analysis of variance. Under C. myriocarpus (Cm), EM × Cm interaction was not significant for nematodes (juveniles + eggs) in roots and juveniles in soil, while under C. africanus (Ca), EM × Ca interaction was highly significant for nematodes, but not for juveniles. Crude extracts of C. myriocarpus and C. africanus fruits contributed 21-36% and 38-59% to total treatment variation in nematodes, respectively. Relative to untreated control, crude extracts of C. myriocarpus fruit reduced nematodes by 22% in roots, but increased juveniles in soil by 93%. Similarly, C. africanus fruit reduced nematodes in roots by 80%, but increased juveniles in soil by 178%. The increase of juveniles in the soil was explained on the basis of opposing forces on nematode population densities under crude extracts of Cucumis and untreated control, along with the inherent nature of cyclic population growth in plant-parasitic nematodes. In plant variables, certain significant (P ≤ 0.05) interactions consistently occurred under both Cucumis species. However, effects of the interactions were not consistent under the two Cucumis species. In most of the variables, the non-significant effects of EM × Cm interactions supported the view that the GLT systems were independent of microbial activities, while significant (P ≤ 0.05) EM × Ca interactions suggested that the systems under C. africanus fruit could be viewed as being dependent upon microbial degradation activities. Growth of rough lemon rootstock was, to a certain extent, suppressed by application of crude extracts from Cucumis fruits, suggesting that the material were phytotoxic to this citrus rootstock. Under low nematode population densities, T. semipenetrans infection supported the view that nematode numbers below the damage threshold levels have stimulatory effects on growth of plants as observed in plant height under conditions of this study. In conclusion, the approximately three nematode-generation-application interval of 150 days for crude extracts of fruits in Cucumis species was rather too long for the efficacies of the materials on suppression of the population densities of T. semipenetrans in rough lemon seedlings. Consequently, shorter application intervals, as demonstrated for Meloidogyne species would be appropriate, although caution has to be taken to ensure that phytotoxicity to the rootstock was avoided.
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Batt, Peter J. "Building close and long-lasting relationships with focal customers : an empirical study of seed potato purchasing by Filipino potato farmers /." Curtin University of Technology, Muresk Institute, 2003. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=14229.
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In the highlands of the Northern Philippines, a model of long-term relationships between potato farmers and their preferred seed suppliers is proposed. In the absence of any certified seed system that might provide some guarantee of seed quality, farmers prefer to transact with those seed suppliers with whom they have had some favourable prior experience. Such suppliers provide both the best quality seed and, since most farmers must borrow the capital to purchase the seed, the most favourable terms of repayment. As there is much uncertainty in the exchange, the farmer's relationship with their preferred seed supplier is based on trust. However, since the farmer's satisfaction with the exchange cannot be ascertained until after purchase, trust is antecedent to satisfaction. As satisfaction is derived from the economic benefits the farmer obtains, satisfaction will lead to the farmer's desire to maintain the relationship. Satisfaction is enhanced both by the seed supplier's willingness to extend credit and to provide information. As there is much variation between alternative seed supplier's offer quality, satisfaction will result in the farmer becoming more dependent upon that seed supplier who makes the best offer. Furthermore, having provided the farmer with financial assistance, seed suppliers will find that they have constrained their opportunities to use coercive influence strategies, for in the absence of any formal contract, farmer's may readily default on the loan. The use of coercive influence strategies will reduce both the farmer's trust in their preferred seed supplier and the farmer's desire to maintain the relationship.While trust is more important in the transitional economies, critical problems emerge with the use of standardised item measures and scales developed in the industrial countries. Cultural specific adjustments are necessary to ensure social constructs such a trust are functionally equivalent. However, in the context of long-term relationships where satisfaction is also cumulative, introducing measures of both economic and social satisfaction have the potential to overlap with the generally accepted measures of trust.
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Wells, Diane. "Modelling problems of independent sector media : an analysis of market-production relationships with reference to independent film and video in Canada." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63882.
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Cowan, Mary Louise. "There's nothing funny about the evolution of humour : the impact of sex, style, and status on humour production and appreciation." Thesis, University of Stirling, 2014. http://hdl.handle.net/1893/21792.
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The sense of humour is a uniquely human skill and understanding humour is an important and rewarding part of social interaction. This thesis begins by discussing the definition of humour, followed by a review of the evidence we have that humour is an evolved and adaptive behaviour. Humour may play an important role in helping individuals to bond and signal cooperation, which may be further communicated by the humour style which is used to communicate. Research has also demonstrated that humour is an attractive quality in a mate, though the precise reasons for this are currently debated (Chapter 1). Empirical work in the first section of the thesis is consistent with evidence demonstrating that humour is attractive and sexually selected for. Chapter 2 tests the influence of modality and relationship context in an effort to further our understanding of why humour is attractive and provides evidence that more attractive people are rated as being funnier than less attractive people. Humour was also found to be more attractive for short-term relationships than long-term relationships, possibly due to the similarity between funniness and flirtatiousness. In Chapter 3, attractiveness ratings of vignettes in the style of personal advertisements, which contained either aggressive or affiliative humour, demonstrated the importance of humour style. An affiliative humour style was more attractive for long-term relationships whereas an aggressive humour style was more attractive for short-term relationships. Further testing provided evidence that humour styles were associated with personality traits which are highly relevant in a mating context, helping to explain the functions of different humour styles. The second section of the thesis examines the relationship between humour, cooperation, and dominance as an alternative explanation for the evolution of humour. Chapter 4 contains an extended introduction to the physical, verbal, and nonverbal cues to dominance and the sex differences that exist in expressive behaviours. Chapter 5 continues this theme and elaborates further on the function of humour in group situations, before providing empirical evidence of how humour is used in the context of a competitive ‘desert-island’ style conversation between same-sex dyads. Chapter 6 further expands on this line of research as empirical evidence presented in this chapter demonstrates that males may be using humour as a way of communicating the desire to cooperate with other males who are of a similar level of dominance. The communication of dominance is further examined in Chapter 7, where ethological evidence showed that males who were more physically dominant tended to knock doors with greater frequency than males who were less physically dominant. In the final chapter of the thesis (Chapter 8), the evolution of humour is discussed in light of the evidence presented in Chapters 2-7. The thesis presents evidence to suggest that humour production is an important skill for males for two reasons. Firstly, a good sense of humour is a highly attractive quality to females and may be a cue to genetic quality or good partner qualities, depending on the humour style used. Secondly, it may be important for males to use humour to signal cooperation to other males in order to form alliances. In females, the evidence presented in the thesis suggests that humour production may be a way for females to demonstrate romantic interest or flirtatiousness but the function of humour use between females remains largely inconclusive.
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Gilmore, Geoffrey Paul. "Identifying Quality Function Deployment's Variables, Outcomes, Their Relationships, and Guidelines for Practitioners in the American Automotive Industry." PDXScholar, 1992. https://pdxscholar.library.pdx.edu/open_access_etds/1157.
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American industry is about nine to 12 years behind in utilizing a new product development and introduction process known as Quality Function Deployment (Q.F.D.). American industry must learn to compete internationally; the American automotive industry alone directly and indirectly employs millions of workers and has billions of dollars in annual sales and profits at stake. With the cooperation of one American automotive company research has been conducted on Q.F.D. The research objectives were to identify: what variables affect Q.F.D., what are the outcomes from Q.F.D., what relationships exist between Q.F.D. variables and outcomes, and what guidelines may be offered to Q.F.D. practitioners. A Multiple Perspectives systems approach was used in developing both what and how Q.F.D. was to be researched. After a literature search a descriptive Q.F.D. model was developed. A Q.F.D. measurement instrument was developed and used to collect technical data. Interviews were used to collect organizational and personal data. An 80% questionnaire response was obtained. Of the model's four outcomes Improved Design and Improved Communications had strong positive results with Improved Cost and Improved Time-to-Market unchanged. Explanations of these results were offered. A Factor Analysis was performed which verified that the three-level Q.F.D. model was appropriate and explained most of the response variation. A Reliability Assessment was conducted and the scales were found to be within or have exceeded the acceptable beginning research coefficient alpha range. A MANOVA Analysis was conducted, and five of the 17 Q.F.D. model's variables were identified as candidates for deletion for this company's present Q.F.D. system. A Ratio Data Assessment was conducted and used to develop five guidelines for this company's practitioners. Organizational and Personal Data Assessments were conducted and their similarities with the Technical Data Assessment were noted. Top Management Commitment, Customer Information Availability, Team Composition and Dynamics and Project Completion Time were identified as important similar Q.F.D. variable findings. Improved Design and Improved Communications were identified as important similar Q.F.D. outcomes. No major discontinuities between the three assessments were found. Research conclusions, contributions and future research work were identified.
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Ageeb, Abdel Gadir Ahmed. "Genetic relationships among feed intake measures, feed conversion efficiency, and milk production traits in Holsteins using field recorded data." Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=35555.
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A total of 114,351 Holstein first lactation records collected by the Quebec Dairy Herd Analysis Service (DHAS-PATLQ) between September, 1979 and January, 1994 were used to study the effects of adjusting records for linear and quadratic effects of 90- and 305-d feed intake measures (total energy, total protein and total dry matter) on estimation of heritabilities of and genetic correlations among yield and composition traits. Genetic parameters of feed intake measures, relationships between feed intake and age and weight at calving, and feed conversion efficiency traits were also examined in a series of studies. A sire model fitted by REML estimated heritabilities of 305-d milk, fat and protein yields, fat and protein percents as .45 +/- .04, .48 +/- .04, .44 +/- .03, .92 +/- .06, and .88 +/- .05, respectively. Correction of 305-d records for differences among cows in feed intake levels reduced heritabilities of milk, fat and protein yields to .35 +/- .03, .52 +/- .04, and .38 +/- .03, respectively. Heritabilities of composition traits (fat and protein percents) remained unchanged. Genetic and phenotypic correlations for yield traits were also reduced (48--170%, and 16--51%, respectively) which may indicate that genetic associations between yield traits are less than what we believed them to be. Heritabilities of 305-d total energy, total protein, total DM intake, grain energy, grain protein, grain DM, base energy, base protein, and base DM were .30 +/- .03, .24 +/- .02, .35 +/- .03, .23 +/- .02, .23 +/- .02, .23 +/- .02, .31 +/- .03, .26 +/- .02, and .40 +/- .03, respectively. Genetic correlations between feed intake measures were very high; they were approaching unity in some cases. Therefore, any one of these feed intake measures can represent the others. A multi-trait REML analysis estimated heritabilities of age and weight at first calving as .11 +/- .01 and .37 +/- .03, respectively. Age at calving was negatively associated with yield traits and with total e
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Ageeb, Abdel Gadir Ahmed. "Genetic relationships among feed intake measures, feed conversion efficiency, and milk production traits in Holsteins using field recorded data." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0034/NQ64493.pdf.
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Thompson, Anthony H. "Academic libraries and audiovisual production services : the development of relationships in institutions of higher education in England and Wales." Thesis, Loughborough University, 1987. https://dspace.lboro.ac.uk/2134/10879.
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Libraries have always been seen as essential teaching and learning support services in academic institutions, while audiovisual production services have been a recent innovation of the last four decades. The recommendation of the Brynmor Jones Report of 1965 to set up audiovisual production services as separate central service units, has led to co-operation between audiovisual services and libraries in some institutions. This has culminated in some cases in the amalgamation of these services as 'learning resource services', a significant trend which is shown to be on the increase. This thesis examines the development of these relationships over the last 30 years, in those institutions of higher education in the categories of colleges and institutes of higher education, polytechnics and universities. By means of historical analysis, the timing and the reasons for these developing relationships is described. Case studies show the variety of organisational, service and human relationships that exist between services. The hypothesis that it is in the interests of the institution that these two academic support services should be amalgamated to form a single service; and that developments in the various aspects of information technology make the separation of libraries, audiovisual services and other more recent support services (such as computer units) increasingly untenable, is examined. The advantages and disadvantages of other forms of development and organisational structures, both at present and for the future, are considered. The thesis concludes with a set of questions which institutions that have not developed a single integrated or co-ordinated service should consider for their future development. The work presents a critical review of the subject hitherto unavailable.
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Joshi, Bhoj Raj. "Parasitic gastroenteritis in small ruminants in the hills of Nepal : studies on epidemiology, production effects and host-parasite relationships." Thesis, Royal Veterinary College (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283246.
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Clegg, Eileen Rebecca. "The significance of relationships between lithic production traditions : a case study of four PPN lithic assemblages from southern Jordan." Thesis, University of Liverpool, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402410.
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Whitney, James. "Relationships among basal energy availability, nonnative predator success, and native fish declines in the upper Gila River Basin, NM, USA." Thesis, Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/3949.
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Sumardi, of Western Sydney Hawkesbury University, of Agriculture Horticulture and Social Ecology Faculty, and School of Horticulture. "The influence of water stress on flowering and fruit production of Capsicum annuum Longum (chilli peppers)." THESIS_FAHSE_HOR_Sumardi_X.xml, 1993. http://handle.uws.edu.au:8081/1959.7/82.
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Severe water stress reduced the number of flowers produced by Capsicum annuum var. annuum L. Longum plants, but the timing of flower production was less affected. The use of different plant establishment techniques modified flower production. Bare rooted transplants slowed the rate of flower production in comparison with direct seeded plants or those established from cell tray transplants. Bare rooted transplants delayed the onset of water stress. The capabilities of male and female gametophytes were reduced by water stress, with the female more affected, and the interaction of male and female gametophytes was affected by moderate water stress. Moderate water stress increased the time to fruit set, but affected neither the number nor percentage of fruit set, whereas severe water stress increased the time and reduced the number and percentage. Severe water stress reduced the number and percentage of mature fruit, fruit quality indices and total fruit yield. Moderate water stress reduced the number of seeds per fruit and fruit dry weight, but total fresh weight yield was not significantly affected. The time to fruit set was negatively correlated with the quality indices of mature fruit, whereas the number of seeds was positively correlated with the same. Fertilisation determined the success of seed set, and the rapidity of fruit set. Successful fertilisation can only occur when the pollen tube arrives at a viable ovule. The processes of pollen tube growth and longevity of the ovule are the factors most critically affected by water stress in determining the yield of C. annuum Longum.Master of Science (Hons)
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Van, Winkle Tyler W. "An evaluation of distller's grain price relationships and implications of increased ethanol production on grain processing practices in commercial feedlots." Thesis, Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/921.
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Hull, Scott D. "The relationships among vegetative structure, arthropod populations, and grassland bird abundance and reproductive success on wildlife production areas in Ohio /." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486457871784286.
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Thabo, Molekwa Julian. "Relationships between cock semen viability and the fertility of artificially inseminated South African indigenous chicken breeds." Thesis, [Bloemfontein?] : Central University of Technology, Free State, 2007. http://hdl.handle.net/11462/106.
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Thesis (M. Tech.) -- Central University of Technology, Free State, 2007Four different South African indigenous (Naked Neck (NN), Ovambo (OVB), Venda (VD) and Potchefstroom Koekoek (PK) chicken breeds were used in this study. From each of the four breeds of chicken, 40 hens and 8 cocks were selected randomly. Two groups each of sixteen cocks were subsequently formed: high performing (HP) and low performing (LP) groups to determine the relationships between cock semen viability and the fertility of artificially inseminated South African indigenous layer breeds. Semen was collected following five minutes of sexual massage (5SM) and evaluated for semen volume (ml), sperm motility (%), live sperm (%) and total sperm (x109/ml). Semen from each cock was then used to inseminate five hens per breed, in each treatment. Each hen was inseminated twice a week throughout the duration of the trial. During the experimental period, each hen was inseminated with 0.05 ml diluted semen. The artificially inseminated hens were examined for average egg weight (g), fertility (%), hatchability of set eggs (%), live chicks (%), normal chicks (%) and chick weight (g). A total of 1600 eggs, i.e. 400 eggs from each breed were collected in three batches following artificial insemination from individually caged hens and were hatched to compare hatching parameters among breeds. The hatchability traits of hens of the four breeds (NN, OVB, PK and VD) were compared. Hatching egg weight had significant (P < 0.05) difference among the four breeds. The results of this study indicate that semen viability exemplified by ejaculate volume, sperm motility; live sperm and total sperm per ejaculate were significantly (P < 0.01) superior in the HP cocks compared to the LP cocks. Hens inseminated with semen from the HP cocks in each experimental group resulted in higher egg weight (g), fertility (%), hatchability of set eggs (%), live chicks (%), normal chicks (%) and chick weight (g). Significant positive relationships existed between semen volume and sperm motility (P < 0.05), semen volume and live sperm cells (P < 0.01), semen volume and total sperm (P < 0.01) in NN, OVB and VD, with negative correlations in PK. Some positive correlations were found between sperm motility and live spermatozoa (P < 0.01), sperm motility and total sperm (P < 0.01), live sperm and total sperm (P< 0.01) in NN, OVB, PK and VND. Fertility was the highest in the HP group. Fertility was also the highest in PK, intermediate and similar in OVB and NN and lowest in VD (P<0.05). Breed had a significant effect on hatchability of fertile eggs (P<0.05). Hatchability of total eggs set was highest in PK and NN, intermediate in OVB and lowest in VD (P<0.05). Breed had a significant effect on live, normal chicks and chick weight (P<0.05). Live chick was the highest in NN, whereas at day-old, normal chick and chick weight at hatching were the highest (23.50 ± 0.11) (P<0.05) in PK (98.14 ± 0.67 vs. 37.90 ± 0.28 g), intermediate and similar in NN (87.90 ± 0.63 vs. 23.50 ± 0.11) and OVB (87.75 ± 0.45 vs. 32.81 ± 0.49 g) and the lowest but with an acceptable value in VD (76.85 ± 0.46 vs. 26.90 ± 0.36 g). There were some correlations among different hatchability traits depending on breed. The correlations were more profound among PK. It was clear that chick weight as percent of egg weight was not just a function of egg weight, and that genotype also played an important role favouring the heavier breeds. The results obtained in this study on the relationships between cock semen viability and the fertility of artificially inseminated South African indigenous layer breeds elucidate that the use of high performing (HP) cocks following five minutes of sexual massage, prior to semen collection and artificial insemination of layers is a practical method for optimising sperm viability and subsequent fertility of hens. The results of this study suggest that the Potchefstroom Koekoek (PK) cocks and hens are superior to the Naked Necks (NN), Ovambo (OVB) and Venda (VD). The Ovambo and Naked Neck cocks ranked second in donating quality semen as well as in improving the fertility and hatchability traits of the indigenous chicken breeds. Thus selection of high performing cocks through five minutes sexual massage prior to semen collection and use is recommended for poultry AI breeding programmes.
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Garzon, Ivonne J. "Phylogenetic Relationships and Character Evolution of the Neotropical Butterfly Genus Hamadryas (Nymphalidae: Biblidinae)." ScholarWorks@UNO, 2012. http://scholarworks.uno.edu/td/1438.
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The butterflies in the genus Hamadryas are popular and noticeable representatives of the Neotropical Lepidoptera fauna. After a thorough taxonomic revision, 20 species were acknowledged within the genus, however no hypothesis of their phylogenetic relationship was proposed. The present dissertation provides a step further into the understanding of this fascinating group of butterflies not only by proposing the first phylogenetic hypothesis for the genus based on morphological and molecular data, but also by exploring for the first time in a group of butterflies the potential effect of venation associated with an specific behaviour on wing shape. Furthermore, this dissertation provides testable evolutionary hypotheses about the pattern of change for some of their most interesting natural history characters such as sound production and sexual dimorphism. The dissertation is organized in three chapters that can be visualized as manuscripts ready for publication; the first of these being already published (Garzón-Orduña, 2012).
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Ribera, Deborah. "(Re)Presentation: An Affective Exploration of Ethnographic Documentary Film Production." Bowling Green State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1428658018.
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