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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
141

Education for occupational change: a study of institutional retraining in New Zealand

Kuiper, Alison C. January 2002 (has links)
In the Western world, and specifically in New Zealand, a major impetus for retraining has arisen quite recently and gone largely unnoticed. The new social phenomenon, retraining in the sense of education for occupational change, is examined in this study. Alongside the three traditionally recognised groups of adult learners: those learning for leisure; second chance learners who have been previously educationally disadvantaged; and upskillers who seek to enhance their existing credentials through further tertiary education; is a fourth; the reskillers, those who are seeking education for occupational change. Women are shown to be pioneers in leading social change in this area of retraining. The key questions investigated in this thesis concern the existence of this new phenomenon in New Zealand; whether it is national or worldwide; and whether its origins are local or international. Whether there are distinctive characteristics to the manifestation of this phenomenon in New Zealand is investigated by examining current policy and practice. Additional questions concern whether there are feature of New Zealand employment or education which make upskilling and reskilling more or less likely in this country; the significance of women being the first to take up education for occupational change and what can be learnt from comparison with other countries specifically the Netherlands and England. Education takes place within a set of intersecting socio-political contexts. In the modern world these are simultaneously international, national, local and institutional. They impact on participants in a course of study yet are not often manifest to the individual. 'Learning for life’ is a significant area of both international and national socio-political concern, manifesting itself in a significant set of public discourses and in social phenomena which, as in this case of education for occupational change, are little researched or understood. The historical evolution of public policy relating to adult learners, internationally, and in New Zealand, is documented, with a particular focus on the period from the 1960s onwards. The major theoretical and ideological constructs are outlined and critiqued particularly with reference to public policy in New Zealand. Analysis shows an inexorable shift over time away from knowledge and skills attained through praxis, to knowledge and skills attained through formal institutionalised learning. At the same time as this change was taking place, participation rates in first secondary, and then tertiary, education rose. Concurrently more and more women entered tertiary education in order to make their way into an increasingly credentialised workforce. It is suggested that, credentials are used for screening purposes in addition to providing individuals with knowledge and skills needed for the occupations they enter. Case studies are used to illustrate and document these changes. Policies relating to learning for life are examined with reference to three different countries: New Zealand, England and the Netherlands. Provision of tertiary education for adults is investigated, and then illustrated through the coverage provided by institutions in three cities, Christchurch, Leicester and Utrecht. These studies show that different countries are subject to international geo-political and ideological forces but respond to them in locally and historically determined ways. The case study/qualitative analysis of the Christchurch Polytechnic’s Next Step Centre for Women and the New Outlook for Women courses illustrates the ways in which the twists and turns of public policy in New Zealand over thirty years have affected women wishing to seek education for occupational change. A quantitative study of mature students and their motivations for returning to study at the Christchurch Polytechnic allows for the impact of public policy and institutional provision on a group of mature individuals to be assessed. The study concludes that education for occupational change appears to be more advanced in New Zealand than in the European countries chosen for comparison. This may result more from individual initiative and the conditions which promote this, than from state policy direction or institutional provision. Policy consequences are proposed on the basis of these findings.
142

Etude de la sismicité intraplaque de la région de Gazli (Ouzbékistan) et localisation de la déformation sismique

Bossu, Rémy 11 January 1996 (has links) (PDF)
Entre 1976 ct 1984, trois séismes de magnitude 7 ont affecté la région intraplaque de Gazli (Ouzbékistan), région de 50x70 km2 auparavant qualifiée de peu sismique. La présence d'un important champ de gaz à proximité immédiate des épicentres suggéra la possibiiité d'une relation entre l'exploitation d'hydrocarbures et l'occurrence de cette sèquence sismique. Trois approches différentes, approche sismologique, tectonique et mécanique furent nécessaires pour contraindre le modèle proposé. D'après ce dernier, l'activité sismique majeure de la région de Gazli est due à la propagation, à l'Ouest du Pamir, de la déformation engendrée par la collision lnde-Asie. ' Le confinement à l'Ouest du Pamir impose que les mouvements décrochants dextres initiés aux abords du poinçon soient absorbés rapidement sur la plateforme par des structures compressives. L'existence de cette structure d'orientation NE-SW est confirmée par l'analyse de photos satellites et par la présence à l'Ouest de la zone épicentrale, d'un bassin compressif post-Oligocène. Quelque soit la magnitude des séismes considérés, des événements de ML > = 3.2 enregistrés en 1991 aux chocs principaux de Ms= 7.0, la sismicité de Gazli se caractérise par une grande variabilité de solutions focales. Pourtant, diverses inversions de contraintes démontrent qu'un état des contraintes unique, lui-même gouverné par la tectonique régionale, peut expliquer ces diverses solutions focales. Pour une structure tectonique donnée, nous proposons que la complexité de localisation de la déformation sismique, déjà observée dans plusieurs zones intraplaques, soit une conséquence du faible déplacement accommodé par cette structure. Nous parlerons alors de structure immature, à opposer à une structure mature, elle même caractérisée par la présence de failles bien développées. Ce concept a de nombreuses implications, notamment en risque sismique. C'est pourquoi nous proposons une méthode statistique permettant de quantitier la "maturité" d'une structure à partir de quelques dizaines de solutions focales.
143

Rapid densification of the oil sands mature fine tailings (MFT) by microbial activity

Guo, Chengmai 11 1900 (has links)
The Mildred Lake Settling Basin (MLSB) is the largest disposal site for mature fine tailings (MFT) at the Syncrude Canada Ltd oil sands plant. Since 1996, MFT densification in the MLSB has significantly accelerated due to microbial activity. Methane-producing microorganisms, known as methanogens, have become very active. A field and laboratory research program has been performed to study the mechanisms leading to the rapid densification. This research program consisted of historical monitoring data analyses, field investigations, small-scale column tests, and gas MFT densification tests. The field investigations have shown that the rapid densification of the MFT has occurred in the southern part of the pond ranging from 8 m to 15 m below the water surface. A connection existed between the rapid densification zone and the zone with intense microbial activity at the pond. The small-scale column tests demonstrated that, with increases of biogas generation, water drainage from the MFT was enhanced. Gas MFT densification tests showed that, stress histories and total pressure affected MFT densification property during microbial activity. Under high total pressure (6-7 m below pond surface) gas bubbles had difficulty to release. For MFT without pre-consolidation or under a preloading, during rapid gas generation, water was rapidly drained out. For over-consolidated MFT, water flowed back into MFT quickly during intense biogas generation. The concept of operative stress, the difference between the total stress and pore water pressure for the soil with large gas bubbles, was introduced to analyze the densification behavior of gassy MFT. Under high total pressure and under a preloading (1 kPa), excess pore pressure increased and operative stress decreased during rapid gas generation while water drainage from the MFT was accelerated. Total pressure and stress history also affected the structure and permeability of the MFT during microbial activity. Under low total pressure (1 m below pond surface) and without pre-consolidation, the MFT permeability increased after intense microbial activity. / Geotechnical Engineering
144

B2B E-commerce Implementation : A case study of Star Laundry Solutions

Dal, Ahu, Hubert, Benjamin, Ocakci, Hilmi January 2010 (has links)
This thesis investigates the way to implement a valuable e-commerce solution. With the growing importance of information technologies in business practices, more and more companies are adopting e-commerce as a selling and ordering process. However, depending on the market environment, the level of success of the implementation may differ. The purpose of this study is therefore to examine what are the conditions required for a successful B2B e-commerce implementation in different market contexts. Theories related to the impact of markets' contexts on e-commerce, the business process, and the drivers and enablers of e-commerce have been considered. Thereafter the current situation of Star Laundry Solutions (SLS) has been studied. The context of different markets – France, United Kingdom, Turkey - where they have dealers, the business process drivers of implementations and success factors of a valuable e-commerce solution have been investigated. The result of the empirical studied are analyzed in comparison with the theoretical findings. Through this method, the main research question of the thesis, namely “What are the necessary conditions to implement a value-adding e-commerce solution in different market contexts?” can be answered. Several conditions have been identified in order to succeed the implementation and bring value to the different players along the supply chain, from the manufacturer to the end-customer. The market should first answer different criteria. Further, future users of the web solution must support the implementation, trust between parties must also emerge from the implementation, and additional information must be provided on the website such as product numbers (PNCs), products' availability and delivery times. The provided recommendations of this thesis regarding the features of the web solution, the range of products that dealers and importers should be able to order online and the range of companies that should be allowed to use the web solution in Turkey.
145

Zooming the Zoomers : The portrayal of older consumers in printed adverts and the perceptions of this portrayal of younger and older consumers

Holkko Lafourcade, Johanna, Josefsson, Lisa January 2010 (has links)
Purpose: The purpose of this thesis is two folded: firstly to do a content analysis on how consumers older than 55 years (Zoomers) are portrayed in advertisements in the largest Swedish magazines, and secondly, to uncover what perceptions of this portrayal that older and younger consumers have. Background: The population of the world is growing older, and thus older consumers (+55) are a large and rapidly growing group of the population which also are strong in purchasing power. Research indicates that older consumers are neglected in advertisement, which might be due to a low participation rate of older models in adverts. Some researchers indicate that this is due to a fear among advertisers to use older models in advertisement since it could alienate younger consumers from purchasing the products. Previous research is ambiguous concerning the effectiveness of using older models in adverts. Therefore, this thesis will examine how Zoomers are portrayed in adverts and what perceptions older and younger consumers have on this portrayal. Method: The purpose of this thesis was fulfilled by conducting a magazine content analysis of adverts, and by conducting focus groups with Zoomers respectively consumers aged 20-30 years. To analyze the results, theories with a base in psychology and advertising was used, e.g. the cognitive age theory, the key concept theory and the self-discrepancy theory. Conclusion: Zoomers are included in 14 percent of Swedish adverts and are portrayed in a positive manner, which is a portrayal both older and younger consumers are content with. Zoomers want to be included more frequently and indications are discovered that younger consumers might be positive to an increased use of older models in adverts when trust is essential. / Syfte: Syftet med den här uppsatsen är tudelat; för det fösta, att göra en innehållsanalys på hur konsumenter äldre än 55 år (Zoomers) framställs i reklam i de största svenska veckotidningarna. Och för det andra, att undersöka vilka åsikter äldre och yngre konsumenter har om hur Zoomers framställs i reklam. Bakgrund: Världens befolkning blir allt äldre och äldre konsumenter (+55) är en stor och snabbt växande grupp i samhället, som även besitter stor köpkraft. Forskning visar att äldre konsumenter försummas i reklam, något som kan bero på att äldre modeller sällan används i reklamannonser. Vissa forskare menar att detta beror på att reklammakarna är skeptiska till användandet av äldre modeller, på grund av en rädsla att yngre konsumenter ska sluta köpa produkterna. Befintlig forskning är tvetydig gällande effektiviteten att använda äldre modeller i reklamannonser. Därför undersöker den här uppsatsen hur Zoomers framställs i reklam och vilka åsikter yngre och äldre konsumenter har om detta. Metod: För att uppfylla uppsatsens syfte så gjordes en innehållsanalys på tryckt tidningsreklam, samt fokusgrupper med Zoomers och konsumenter i ålder 20-30 år. För att analysera resultaten användes teorier med sin bas inom psykologi, bland andra; the cognitive age theory, the key concept theory and the self-discrepancy theory. Slutsats: Zoomers är inkluderade i 14 procent av tryckta annonser och är positivt framställda, vilket både äldre och yngre konsumenter var nöjda med. Zoomers vill synas mer i reklam och indikationer upptäcktes angående att yngre konsumenter kan ställa sig positiva till en ökad användning  av äldre modeller i reklam där trovärdighet är viktigt.
146

A Novel Approach to Identify Candidate Imprinted Genes in Humans

Shapiro, Jonathan 21 March 2012 (has links)
Many imprinted genes are necessary for normal human development. Approximately 70 imprinted genes have been identified in humans. I developed a novel approach to identify candidate imprinted genes in humans using the premise that imprinted genes are often associated with nearby parent-of-origin-specific DNA differentially methylated regions (DMRs). I identified parent-of-origin-specific DMRs using sodium bisulfite-based DNA (CpG) methylation profiling of uniparental tissues, mature cystic ovarian teratoma (MCT) and androgenetic complete hydatidiform mole (AnCHM), and biparental tissues, blood and placenta. In support of this approach, the CpG methylation profiling led to the identification of parent-of-origin-specific differentially methylated CpG sites (DMCpGs) in known parent-of-origin-specific DMRs. I found new DMRs for known imprinted genes NAP1L5 and ZNF597. Most importantly, I discovered many new DMCpGs, which were associated with nearby genes, i.e., candidate imprinted genes. Allelic expression analyses of one candidate imprinted gene, AXL, suggested polymorphic imprinting of AXL in human blood.
147

A Novel Approach to Identify Candidate Imprinted Genes in Humans

Shapiro, Jonathan 21 March 2012 (has links)
Many imprinted genes are necessary for normal human development. Approximately 70 imprinted genes have been identified in humans. I developed a novel approach to identify candidate imprinted genes in humans using the premise that imprinted genes are often associated with nearby parent-of-origin-specific DNA differentially methylated regions (DMRs). I identified parent-of-origin-specific DMRs using sodium bisulfite-based DNA (CpG) methylation profiling of uniparental tissues, mature cystic ovarian teratoma (MCT) and androgenetic complete hydatidiform mole (AnCHM), and biparental tissues, blood and placenta. In support of this approach, the CpG methylation profiling led to the identification of parent-of-origin-specific differentially methylated CpG sites (DMCpGs) in known parent-of-origin-specific DMRs. I found new DMRs for known imprinted genes NAP1L5 and ZNF597. Most importantly, I discovered many new DMCpGs, which were associated with nearby genes, i.e., candidate imprinted genes. Allelic expression analyses of one candidate imprinted gene, AXL, suggested polymorphic imprinting of AXL in human blood.
148

Treatment of mature urban landfill leachates by anammox process

Ruscalleda Beylier, Maël 17 February 2012 (has links)
This thesis results from the collaborative projects between the LEQUIA-UdG group and Cespa (a company in charge of several landfill sites in Spain). The aim of the work was the development of a suitable alternative treatment for nitrogen removal from mature landfill leachates. The thesis presents the application of the anammox (anaerobic ammonium oxidation process) process to treat ammonium rich leachates as the second step of the PANAMMOX® process. The work deals with preliminary studies about the characteristics of the anammox process in a SBR, with special focus on the response of the biomass to nitrite exposure. The application of the anammox process with leachate was first studied in a lab-scale reactor, to test the effect of the leachate matrix on anammox biomass and its progressive adaptation. Finally, a start-up strategy is developed and applied for the successful start-up of a 400L anammox SBR in less than 6 months. / Aquesta tesi és fruit de la col•laboració entre el grup LEQUIA-UdG i Cespa. L'objectiu del treball va ser el desenvolupament d'un tractament alternatiu per a l'eliminació biològica de nitrogen dels lixiviats madurs d'abocador. La tesi presenta l'aplicació del procés anammox (anaerobic ammonium oxidation) per tractar elevades càrregues de nitrogen en el segon pas del procés PANAMMOX ®. El treball inclou estudis preliminars sobre les característiques del procés de anammox en un SBR, amb especial atenció a la resposta de la biomassa a l'exposició de nitrit. L'aplicació del procés anammox amb lixiviat es va estudiar inicialment en un reactor a escala de laboratori, per provar l'efecte de la matriu del lixiviat sobre la biomassa anammox i la seva adaptació progressiva. Finalment, es va desenvolupar una estratègia de posada en marxa que va ser aplicada amb èxit per a la posada en marxa d'un SBR anammox de 400L en menys de 6 mesos.
149

Sequence stratigraphic interpretation methods for low-accommodation, alluvial depositional sequences: applications to reservoir characterization of Cut Bank field, Montana

Ramazanova, Rahila 15 May 2009 (has links)
In South Central Cut Bank Sand Unit (SCCBSU) of Cut Bank field, primary production and waterflood projects have resulted in recovery of only 29 % of the original oil in place from heterogeneous, fluvial sandstone deposits. Using highresolution sequence stratigraphy and geostatistical analysis, I developed a geologic model that may improve the ultimate recovery of oil from this field. In this study, I assessed sequence stratigraphic concepts for continental settings and extended the techniques to analyze low-accommodation alluvial systems of the Cut Bank and Sunburst members of the lower Kootenai formation (Cretaceous) in Cut Bank field. Identification and delineation of five sequences and their bounding surfaces led to a better understanding of the reservoir distribution and variability. Recognition of stacking patterns allowed for the prediction of reservoir rock quality. Within each systems tract, the best quality reservoir rocks are strongly concentrated in the lowstand systems tract. Erosional events associated with falling baselevel resulted in stacked, communicated (multistory) reservoirs. The lowermost Cut Bank sandstone has the highest reservoir quality and is a braided stream parasequence. Average net-to-gross ratio value (0.6) is greater than in other reservoir intervals. Little additional stratigraphically untapped oil is expected in the lowermost Cut Bank sandstone. Over most of the SCCBSU, the Sunburst and the upper Cut Bank strata are valley-fill complexes with interfluves that may laterally compartmentalize reservoir sands. Basal Sunburst sand (Sunburst 1, average net-to-gross ratio ~0.3) has better reservoir quality than other Sunburst or upper Cut Bank sands, but its reservoir quality is significantly less than that of lower Cut Bank sand. Geostatistical analysis provided equiprobable representations of the heterogeneity of reservoirs. Simulated reservoir geometries resulted in an improved description of reservoir distribution and connectivity, as well as occurrences of flow barriers. The models resulting from this study can be used to improve reservoir management and well placement and to predict reservoir performance in Cut Bank field. The technical approaches and tools from this study can be used to improve descriptions of other oil and gas reservoirs in similar depositional systems.
150

Zooming the Zoomers : The portrayal of older consumers in printed adverts and the perceptions of this portrayal of younger and older consumers

Holkko Lafourcade, Johanna, Josefsson, Lisa January 2010 (has links)
<p><strong>Purpose: </strong>The purpose of this thesis is two folded: firstly to do a content analysis on how consumers older than 55 years (Zoomers) are portrayed in advertisements in the largest Swedish magazines, and secondly, to uncover what perceptions of this portrayal that older and younger consumers have.<strong> </strong></p><p><strong>Background:</strong> The population of the world is growing older, and thus older consumers (+55) are a large and rapidly growing group of the population which also are strong in purchasing power. Research indicates that older consumers are neglected in advertisement, which might be due to a low participation rate of older models in adverts. Some researchers indicate that this is due to a fear among advertisers to use older models in advertisement since it could alienate younger consumers from purchasing the products. Previous research is ambiguous concerning the effectiveness of using older models in adverts. Therefore, this thesis will examine how Zoomers are portrayed in adverts and what perceptions older and younger consumers have on this portrayal.</p><p><strong> </strong></p><p><strong>Method: </strong>The purpose of this thesis was fulfilled by conducting a magazine content analysis of adverts, and by conducting focus groups with Zoomers respectively consumers aged 20-30 years. To analyze the results, theories with a base in psychology and advertising was used, e.g. the cognitive age theory, the key concept theory and the self-discrepancy theory.</p><p><strong>Conclusion:</strong> Zoomers are included in 14 percent of Swedish adverts and are portrayed in a positive manner, which is a portrayal both older and younger consumers are content with. Zoomers want to be included more frequently and indications are discovered that younger consumers might be positive to an increased use of older models in adverts when trust is essential.</p> / <p><strong>Syfte: </strong>Syftet med den här uppsatsen är tudelat; för det fösta, att göra en innehållsanalys på hur konsumenter äldre än 55 år (Zoomers) framställs i reklam i de största svenska veckotidningarna. Och för det andra, att undersöka vilka åsikter äldre och yngre konsumenter har om hur Zoomers framställs i reklam.</p><p><strong>Bakgrund:</strong> Världens befolkning blir allt äldre och äldre konsumenter (+55) är en stor och snabbt växande grupp i samhället, som även besitter stor köpkraft. Forskning visar att äldre konsumenter försummas i reklam, något som kan bero på att äldre modeller sällan används i reklamannonser. Vissa forskare menar att detta beror på att reklammakarna är skeptiska till användandet av äldre modeller, på grund av en rädsla att yngre konsumenter ska sluta köpa produkterna. Befintlig forskning är tvetydig gällande effektiviteten att använda äldre modeller i reklamannonser. Därför undersöker den här uppsatsen hur Zoomers framställs i reklam och vilka åsikter yngre och äldre konsumenter har om detta.</p><p><strong> </strong></p><p><strong>Metod: </strong>För att uppfylla uppsatsens syfte så gjordes en innehållsanalys på tryckt tidningsreklam, samt fokusgrupper med Zoomers och konsumenter i ålder 20-30 år. För att analysera resultaten användes teorier med sin bas inom psykologi, bland andra; the cognitive age theory, the key concept theory and the self-discrepancy theory.<strong> </strong></p><p><strong>Slutsats:</strong> Zoomers är inkluderade i 14 procent av tryckta annonser och är positivt framställda, vilket både äldre och yngre konsumenter var nöjda med. Zoomers vill synas mer i reklam och indikationer upptäcktes angående att yngre konsumenter kan ställa sig positiva till en ökad användning  av äldre modeller i reklam där trovärdighet är viktigt.</p>

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