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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.
1

Multimedia in E-Learning

Mast, Kimberly 05 1900 (has links)
Multimedia in E-Learnign and Cognitive Overload / Multimedia has infused itself into all aspects of education be it online, distance or in the face-to-face classroom. Its presence has become ubiquitous in education and yet has it really benefitted students to the degree it could? This paper utilizes a review of the literature to define the role of multimedia in e-learning then looks at how multimedia fits into basic pedagogy, learning theory and learning styles. An examination of how multimedia optimally could be incorporated into the curriculum is also conducted. Finally a look at cognitive overload is undertaken to determine if there is such as thing as too much of a good thing; can instructors end up confusing students with poorly designed multimedia presentations? There are many tools to use to present multimedia lessons however, this does not mean they all need to be used in a single lesson, and selecting the right multimedia tool, and content is imperative to ensure learning goals are met. Careful selection and attention to instructional design remains the key determinant in successful learning models and the incorporation of multimedia should be used with basic instructional pedagogy in mind.
2

On asset pricing and the equity premium puzzle

Bart-Williams, Claudius Pythias January 2000 (has links)
Presented here are consumption and production related asset pricing models which seek to explain stock market behaviour through the stock premium over risk-free bonds and to do so using parameter values consistent with theory. Our results show that there are models capable of explaining stock market behaviour. For the consumption-based model, we avoid many of the suggestions to artificially boost the predicted stock premium such as modelling consumption as leverage claims; instead we use the notion of surplus consumption. We find that with surplus consumption, there are models including the much-maligned power utility model, capable of yielding theory consistent estimates for the discount rate, risk-free rate as well as the coefficient of relative risk aversion, y. Since real business cycle theory assumes a risk aversion coefficient of 1, we conclude that our model which gives a value close to but not equal to 1, provides an indication of the impact of market imperfections. For production, we present many of the existing models which seek to explain stock market behaviour using production data which we find to be generally incapable of explaining stock market behaviour. We conclude by presenting a profit based formulation which uses deviations of actual from expected profits and dividends via stock price reaction parameters to successfully explain stock market behaviour. We also conclude that the use of a profit based formulation allows for a link to investment, output and pricing decisions and hence link consumption and production.
3

Cons?rcio Modular: uma an?lise da implanta??o do modelo estrat?gico para obten??o de vantagens competitivas. / Modular Consortium: an analysis of the strategic model s adoption, in order to obtain competitive advantages.

Kubo, Pablo Yugo Yoshiura 15 March 2007 (has links)
Made available in DSpace on 2016-04-28T20:19:10Z (GMT). No. of bitstreams: 1 2007-Pablo Yugo Yoshiura Kubo.pdf: 2422613 bytes, checksum: e348b7e550419b55af8c51c6ca37adfe (MD5) Previous issue date: 2007-03-15 / The main objective of this work is to analyze the more evident competitive advantages due to the adoption of the production model called Modular Consortium. Therefore, it will be analyzed two truck and bus manufacturers, of the Brazilian, that adopted two different production process. Volkswagen Truck and Bus Modular Consortium, located in Resende city (RJ) has a revolutionary manufacture process, that the main company delegates the assemblies tasks, logistics and a portion of the product development to the 7 main suppliers. Each module manages its own workers, and just some specific department (engineering, quality assurance, marketing, sales and assistance) has Volkswagen employees. In the other hand, the A manufacturer has a vertical production process; it means that the main vehicle s component are made, and developed, by its own manufacture plant. The methodology used was based on non structured interviews with personal from the Human Resource / Logistics / Product Engineering Departments. The basic characteristic to delegate tasks, the Modular Consortium, optimizes the utilization of its employees. This factor, if analyzed by the Brazilian side, could be considered a negative point, due to its high level of unemployment. But this optimization could be related as an efficiency indicator of the Volkswagen Truck and Bus Modular Consortium. The fact that the Modular Consortium concept permits the main company to delegate secondary tasks allows it to concentrate in strategic areas like its mark and its market performance. / O objetivo geral neste trabalho ? analisar as vantagens competitivas, mais latentes, geradas pelo modelo de produ??o denominada cons?rcio modular. Para tanto ser?o analisadas duas montadoras, de ve?culos comerciais, que det?m diferentes processos produtivos mencionados. O cons?rcio modular Volkswagen Caminh?es e ?nibus, situada na cidade de Resende (RJ) possui um processo de produ??o inovador, na qual a empresa contratante delega as tarefas de montagem, log?stica de suprimentos e parte do desenvolvimento do produto para 07 fornecedores. Cada m?dulo administra seus funcion?rios, sendo que apenas departamentos muito espec?ficos (engenharia do produto, garantia de processo e da qualidade, marketing, vendas e assist?ncia t?cnica) possuem funcion?rios diretamente ligados ? Volkswagen. Em contrapartida a Empresa A possui uma produ??o totalmente verticalizada, onde os principais componentes dos ve?culos s?o fabricados, e desenvolvidos, pela pr?pria montadora. A metodologia da pesquisa de campo baseou-se em entrevistas n?o-estruturadas com os profissionais dos Departamentos de Recursos Humanos, Log?stica e Engenharia do Produto. Devido a caracter?stica b?sica em delegar tarefas, o Cons?rcio Modular, otimiza a utiliza??o de funcion?rios para a produ??o / desenvolvimento de seus ve?culos. Esse fator se analisado sob a ?tica brasileira pode ser considerado mal?fico, devido ? alta taxa de desemprego do pa?s. Todavia essa otimiza??o traduz-se como um indicador de efici?ncia do Cons?rcio Modular Volkswagen Caminh?es e ?nibus. Em ?ltima an?lise o fato do conceito de cons?rcio modular permitir a empresa em delegar tarefas ditas como secund?rias propicia a mesma concentrar-se em ?reas estrat?gicas como sua marca e seu desempenho no mercado consumidor.
4

The Unbundling and Rebundling of the Faculty Role in E-Learning Community College Courses

Smith, Vernon Clay January 2008 (has links)
The unbundling of the faculty role occurs when e-learning course tasks normally performed by a single faculty member--such as course design, development, delivery, grading, interaction with students, course improvement, and advisement--are segmented or unbundled so that they can be performed by other personnel or with technologies. Using a qualitative methods approach, this study examines the unbundling and restructuring of the faculty professional role in large enrollment e-learning courses. This study was conducted at three community colleges in a large, urban community college district, and presents three models of e-learning course production that affect the unbundling of the faculty role: craft, collegial, and virtual assembly line. This research also examines how e-learning faculty members seek to rebundle tasks associated with their professional role and identity, and the tasks they perceive as meeting student needs and demand. This study contributes to professional and economic theories concerning faculty members in the e-learning context, and advances theories associated with academic labor, managed professionals, Academic Capitalism, and the globalization of the community college.
5

Input of nitrogen from N2 fixation to northern grasslands /

Carlsson, Georg, January 2005 (has links) (PDF)
Diss. (sammanfattning). Umeå : Sveriges lantbruksuniv. / Härtill 4 uppsatser.
6

The importance of N₂ fixation in northern grasslands /

Carlsson, Georg, January 2003 (has links) (PDF)
Lic.-avh. (sammanfattning) Umeå : Sveriges lantbruksuniv. / Härtill 2 uppsatser.
7

FUNÇÕES DE PRODUÇÃO DAS CULTURAS DE MILHO E FEIJÃO ATRAVÉS DE ESTUDO EXPERIMENTAL E SIMULADO / FUNCTIONS OF PRODUCTION MAIZE AND BEANS CROPS, THROUGH AN EXPERIMENTAL AND SIMULATED STUDY

Parizi, Ana Rita Costenaro 28 January 2010 (has links)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The development of math models can available a tool to estimate and understand the behavior of the system in face of diferent situations, helping in the decision-making process, through a simplified representation of reality, allowing to simulate several scenes and to estimate the different action courses impact about the production systems, helping in the activity planning. In the case of use simulation models of crops production, about different irrigation strategies, the procedure allows to get all the possible informations, that in field experiments would require time and necessary features to the research. So, this work proposes a simulation of maize and beans crops production, considering a field experiment characteristics and the agricultural year climate characteristics, in which the experiment was managed, with the goal to calibrate, test and apply a simulation model to the cycle of maize and beans crops in the region of Santiago, RS. As experimental results, it was obtained variations in maize and beans crops growth, development, and production, with the apply of different irrigation strategies. The irrigation blades growth increased the grain and dry matter production of the studied crops. The production model applied could simulate properly the grain and dry matter production for both crops. The different strategies of irrigation simulated by the model, influenced the water balance components and in the final productivity of studied crops. Water blades of 800 mm e 500 mm resulted in maize and beans production decrease, respectively. The efficiency of water application from 550 mm and 500 mm to the maize and the beans have been decreased, respectively. The proposed model can be used as a tool for regional planning in the deployment of maize and beans crops in irrigated conditions and allows the identification of irrigation strategies that result in higher grain production, and could be considered an excellent tool for predicting crops yields in irrigated conditions. Thus, it was possible to offer to the studied region, yield data with the irrigation use and, especially, with the simulation use, providing greater security for producers and technicians of the region, in future installations of irrigated systems. / O desenvolvimento de modelos matemáticos pode disponibilizar uma ferramenta para estimar e entender o comportamento do sistema em face de diferentes situações, auxiliando no processo de tomada de decisão através de uma representação simplificada da realidade, permitindo simular vários cenários e estimar a repercussão de diferentes cursos de ação sobre os sistemas produtivos, auxiliando no planejamento da atividade. No caso da utilização de modelos de simulação da produção das culturas, sob diferentes estratégias de irrigação, o procedimento permite obter todas as informações possíveis, que em experimentos de campo demandariam tempo e recursos necessários para a pesquisa. Desta forma, o presente trabalho propõe uma simulação da produção das culturas de milho e feijão, levando em consideração as características de um experimento de campo e as características climáticas do ano agrícola em que o experimento foi conduzido, com o objetivo de calibrar, testar e aplicar um modelo de simulação para o ciclo das culturas do milho e do feijão na região de Santiago, RS. Como resultados experimentais, obteve-se variações no crescimento, desenvolvimento e produção das culturas de milho e feijão com a aplicação de diferentes estratégias de irrigação. O aumento nas lâminas de irrigação aumentou a produção de grãos e matéria seca das culturas em estudo. O modelo de produção aplicado foi capaz de simular adequadamente a produção de grãos e a produção de matéria seca para ambas culturas. As diferentes estratégias de irrigação simuladas pelo modelo, influenciaram nos componentes do balanço hídrico e na produtividade final das culturas em estudo. Lâminas de água de 800 mm e 500 mm acarretaram redução na produção de milho e feijão, respectivamente. A eficiência de aplicação de água a partir de 550 mm e 500 mm para o milho e o feijão, respectivamente, foi reduzida. O modelo proposto pode ser utilizado como ferramenta para o planejamento regional na implantação da cultura de milho e feijão em condições de irrigação e possibilita a identificação de estratégias de irrigação que resultem em elevadas produções de grãos, podendo ser considerado uma excelente ferramenta para previsão de rendimento das culturas em condições de irrigação. Desta forma foi possível oferecer a região em estudo dados de produtividade com a utilização da irrigação e em especial com a utilização de simulação, trazendo maior segurança para produtores e técnicos da região em futuras instalações de sistemas irrigados.
8

Introduktion för arbetsledarrollen / Indtroduction to the Role as a Work Manager

Shisha, Tomas, Uske, Rickard January 2013 (has links)
Syftet med detta examensarbete är att komma underfund med hur introduktionen kan förbättras för nyanställda arbetsledare utan tidigare erfarenheter från arbetsområdet. Examensarbetet är en respons på Peabs interna enkät som under ett antal år belyst hur medarbetarna bland annat ser på trivseln och arbetsmiljön på sin arbetsplats. Denna enkät är till för att finna förbättringsområden. Flera anger att de anser att introduktionen är otillräcklig och behöver förbättras. Denna rapport använder sig av en kvalitativ metod med intervjuer av tio personer med koppling till yrkesrollen arbetsledare samt ytterligare tio kompletterande intervjuer. De huvudsakliga slutsatser och förbättringsförslag som dragits från intervjuerna är att nyanställda arbetsledare ska få tillgång till bättre arbetsbeskrivningar om hur Peabs arbetsmetoder och vad dess kärnvärden är och dessutom få klart för sig vad företaget har för förväntningar på de nyanställda. Större delen av intervjupersonerna ansåg att någon form av strukturerad utvecklingsplan var att föredra. Under rapportskrivandet upprättades följaktligen en sådan, som anger vilka moment och fördjupande kurser som är lämpliga för en nyanställd arbetsledare. Fokus riktas på både de praktiska och teoretiska avsnitten och innefattar samtliga arbetsmoment från grundläggning till färdigt hus. / The purpose of this graduate thesis is to figure out how to improve the introduction for newly employed work managers with no earlier experience within this field. This thesis came as a response to Peabs’ internal survey which for a couple of years has illuminated the coworkers´ view on their well-being and working environment at the workplace. The survey has been used for finding improvement areas and several respondents have reported that the introduction is inadequate and is in need of improvement, which thus has led to this thesis for the division Peab Bostad in Solna. This report uses a qualitative interview method of ten persons with connection to the work manager role and additional ten complementing interviews. The main conclusions and suggestions for improvement which were brought up from the interviews (for this thesis) are that all the interviewed believe that the newly employed work managers should be assigned with a significantly enhanced description of Peabs’ work methods, core values and the company’s expectations of the newly employed. The majority of the interviewed regarded some form of a structured development plan was to be obtained. Consequently a plan intended for a newly employed work manager was established, including phases and corresponding courses to be taken prior to each phase. The focus is on both the practical and the theoretical parts which include all the work phases from the start to the completed building. This report illuminates the importance of an increased co-operation between the experienced staff and the newly employed inexperience work managers. Accordingly they will receive support from several individuals and thus increase the feedback.
9

L'influence translinguistique dans l'interlangue française : Étude de la production orale d'apprenants plurilingues / Cross-linguistic influence in French interlanguage : a study of the oral production of multilingual learners

Lindqvist, Christina January 2006 (has links)
<p>The present study concerns cross-linguistic influence in the spoken French of multilingual learners. The main purpose is to investigate to what degree, and in what manner, previously acquired languages (L1, L2(s)) influence the target language, L3. Given the fact that the study only concerns spoken interlanguage, it makes use of a psycholinguistic perspective, which takes models of oral production into account.</p><p>The analysis is divided into two main parts. The first concerns the oral production of 30 Swedish learners of French, who fall into three groups according to their previous exposure to French: beginners, secondary school students and university students. The results show that proficiency in the L3 is crucial in at least two ways. First, there is a correlation between the level of proficiency in the L3 and the number of instances of cross-linguistic influence in that the least advanced learners produce the highest number of cross-linguistic lexemes, whereas the most advanced learners produce the lowest number. Second, the level of proficiency in the L3 is decisive for the number of background languages (L1, L2) used during oral production in L3: the lower the proficiency in the L3, the more background languages are used, and vice versa.</p><p>The second part of the analysis contains six case studies of learners with partly different L1s and L2s. It focuses on the roles of the background languages during conversation in L3 and on the factors contributing to the attribution of these roles. The results point at both similarities and differences between the learners with respect to the roles of the background languages. A result common to all the learners is the use of Swedish L1/L2 and English L1 as an instrumental language, i.e. a language used rather strategically with a communicative purpose. The use of these languages in this function seems to be due to the fact that Swedish and English are shared languages between the learner and the interlocutor.</p>
10

L'influence translinguistique dans l'interlangue française : Étude de la production orale d'apprenants plurilingues / Cross-linguistic influence in French interlanguage : a study of the oral production of multilingual learners

Lindqvist, Christina January 2006 (has links)
The present study concerns cross-linguistic influence in the spoken French of multilingual learners. The main purpose is to investigate to what degree, and in what manner, previously acquired languages (L1, L2(s)) influence the target language, L3. Given the fact that the study only concerns spoken interlanguage, it makes use of a psycholinguistic perspective, which takes models of oral production into account. The analysis is divided into two main parts. The first concerns the oral production of 30 Swedish learners of French, who fall into three groups according to their previous exposure to French: beginners, secondary school students and university students. The results show that proficiency in the L3 is crucial in at least two ways. First, there is a correlation between the level of proficiency in the L3 and the number of instances of cross-linguistic influence in that the least advanced learners produce the highest number of cross-linguistic lexemes, whereas the most advanced learners produce the lowest number. Second, the level of proficiency in the L3 is decisive for the number of background languages (L1, L2) used during oral production in L3: the lower the proficiency in the L3, the more background languages are used, and vice versa. The second part of the analysis contains six case studies of learners with partly different L1s and L2s. It focuses on the roles of the background languages during conversation in L3 and on the factors contributing to the attribution of these roles. The results point at both similarities and differences between the learners with respect to the roles of the background languages. A result common to all the learners is the use of Swedish L1/L2 and English L1 as an instrumental language, i.e. a language used rather strategically with a communicative purpose. The use of these languages in this function seems to be due to the fact that Swedish and English are shared languages between the learner and the interlocutor.

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