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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.
351

Caracterização técnico-jurídica da insalubridade e periculosidade e sua aplicação na gestão de segurança em pedreiras. / Characterization of the unhealthy and hazardous situation under the forensic experts survey and its application in quarries safety management.

Paula, Ricardo Guimarães de 06 October 2008 (has links)
Nas atividades típicas de empresas de mineração que produzem pedra britada para construção civil, conhecidas como pedreiras, é comum a exposição dos empregados a diversos fatores de risco à saúde ou integridade física, exposição que, no Brasil, confere a estes empregados o direito a adicionais de insalubridade ou periculosidade sobre o salário, definidos em lei a partir de diferentes parâmetros técnicos. As controvérsias acerca do pagamento ou não destes adicionais entre os empregadores e os empregados, a exemplo dos demais conflitos entre capital e trabalho, são solucionados no Brasil pela Justiça do Trabalho, sendo a perícia técnica uma das principais ferramentas da qual lançam mão os seus juízes, visando a apuração da efetiva ocorrência da insalubridade ou periculosidade nos ambientes de trabalho. No presente estudo foi realizada a caracterização da insalubridade e periculosidade em pedreiras sob o enfoque pericial, abordando-se para tanto os conceitos e a tipificação legal afeitos ao tema, bem como os principais aspectos da prova pericial técnica e sua contextualização no processo judicial, com o levantamento e análise das características dos ambientes de trabalho e das atividades desenvolvidas pelos empregados neste tipo de mineração. Como resultado, constatou-se a potencial ocorrência de insalubridade e/ou periculosidade em diversas das funções desenvolvidas pelos funcionários de pedreiras, pelo que foram discutidas as possíveis formas de gerenciamento da insalubridade e periculosidade no âmbito da gestão global de segurança destes empreendimentos, culminando na proposta de utilização voluntária e sistemática, por parte das empresas de mineração, das técnicas de levantamento e análise pericial, de forma a contribuir para uma melhor concepção e execução dos diversos programas de segurança e medicina do trabalho exigidos pela legislação brasileira, bem como para a redução dos custos relacionados. / In the typical activities of mining companies that produce crushed stone for civil construction, known as \"quarries\", employees exposition to diverse risk factors, to the health or physical integrity, is common. This kind of exposition, in Brazil, gives to these employees unhealthy or hazard adds on the wage, defined in law from different technical parameters. The controversies concerning the payment of these adds between the employers and the employees, like the other conflicts between capital and labor, are solved in Brazil by the labor justice, and the forensic expert survey is one of the main tools used by the judges for the verification of the effective occurrence of the unhealthy or hazardous situations in labor activities. The present study focus the unhealthy or hazardous situations in quarries under the forensic expert survey, approaching the concepts and the legal definitions of the unhealthy or hazardous situations in labor activities, the main aspects of the expert evidence technique and the judicial proceeding, and the survey and analysis of the typical characteristics of work environments and quarries employees activities. The possible forms of management of the unhealthy or hazardous situations were also discussed, in the scope of the global safety management in quarries, as well as the contribution of raised data in forensic expert survey for the conception of security and health programs, equally demanded for the brazilian legislation.
352

Teoria e método em Arqueologia Regional: um estudo de caso no Alto Paranapanema, Estado de São Paulo / Theory and method in Regional Archaeology: a case study in the Upper Paranapanema Basin, São Paulo State

Araujo, Astolfo Gomes de Mello 14 September 2001 (has links)
É apresentada uma proposta teórico-metodológica visando a implementação de um trabalho de Arqueologia Regional em uma área de 1.440 km². Uma estrutura da teoria em Arqueologia é proposta, sugerindo como o encadeamento de diferentes corpos teóricos pode ser operacionalizado de maneira a permitir resultados satisfatórios. São discutidos os diferentes aspectos que compõem um trabalho de levantamento arqueológico, tais como o tratamento de sítios em superfície, os aspectos que influem na interceptação de detecção de sítios em subsuperfície e as implicações que diferentes abordagens geoarqueológicas podem ter no entendimento dos padrões de distribuição dos sítios na paisagem. Uma breve discussão da natureza da classificação em Arqueologia é também realizada, antecedendo a apresentação e análise dos resultados obtidos / This dissertation presents a theoretical and methodological framework aiming the implementation of a regional archaeology program in an area covering 1.440 km². Archaeologys theoretical structure is discussed, and an operational rationale linking the different theoretical bodies is suggested. The different aspects inffluencing a regional program of survey are presented, as the treatment of surface sites, the detection and interception of buried remains, and the implications of different geoarchaeological approaches in the understanding of site distribution patterns. A brief discussion on the nature of archaeological classification is also presented
353

Contagem de fezes como índice de abundância de capivaras (Hydrochaeris hydrochaeris). / Feces counting as an index of abundance of capybaras (Hydrochaeris hydrochaeris).

Pinto, Gustavo Romeiro Mainardes 05 April 2004 (has links)
A capivara é uma espécie da fauna silvestre que se favoreceu da situação de conversão de áreas florestais para fins agropecuários, tornando-se bastante comum. Tal superpopulação causa conflitos, especialmente em virtude de prejuízos agrícolas e riscos de transmissão de doenças. Entretanto, a espécie apresenta grande potencial zootécnico e econômico, sendo que, aparentemente, o sistema produtivo mais sustentável seria o extensivo. Para fornecer subsídios técnicos a este sistema, torna-se necessário o monitoramento das populações. Um dos métodos mais utilizados para populações de capivaras é o de contagem direta dos animais, utilizada usualmente em ambientes mais abertos, porém pouco eficiente em locais de vegetação mais fechada e para populações mais arredias. O que se buscou testar neste trabalho foi um método de monitoramento alternativo à contagem direta. O trabalho foi realizado em sete áreas, sendo quatro com populações fechadas e três abertas. Semanalmente foram contadas as fezes depositadas durante esse período numa área amostral, contados diretamente os animais e levantados dados sobre flutuação real das populações fechadas. A obtenção de um índice de abundância através da contagem de fezes apresentou um coeficiente de regressão linear melhor que a contagem direta, em comparação com a flutuação real da população, obtida em ambientes fechados. Porém, nenhum dos métodos apresentou resultados satisfatórios que refletissem, no índice, as alterações ocorridas na população. A contagem de fezes mostrou-se satisfatória para separar em faixas de número de indivíduos as diferentes populações e também na aplicação da estimativa populacional baseada na técnica de Índice-manipulação-índice. O trabalho levanta inúmeras questões a respeito da intensidade amostral, de possíveis estudos quanto ao uso do habitat e do grau de confiabilidade dos monitoramentos baseados em contagens diretas. / The capybara is a wild species that would be favored by the conversion of the forest areas to farmlands, becoming abundant. Such overpopulation causes conflicts, especially due to agricultural damages and risks of transmission of illnesses. However, this species presents a great potential in both aspects: zootechnical and economical. As a result, apparently, the most sustainable productive system would be the extensive one. In order to supply technical subsidies to this system, surveying of populations become necessary. One of the survey methods most used in capybara populations is the direct counting that is usually adopted in ecosystems predominantly herbaceous. However, this methodology relies in some problems. It presents low efficiency in dense forested areas as well as in dealing with fearful capybara individuals. Thus, we proposed in this study a surveying method as an alternative to the direct counting one. The work was done on seven areas (four with closed populations and three open). Weekly, the individuals had been counted, as well as the feces deposited in the period on a sample area, besides getting the real data with respect to fluctuation of the closed populations. The attainment of an index of abundance through the feces counting presented a coefficient of linear regression better that the direct counting, in comparison with the real fluctuation of the population, gotten in closed environments. However, none of the methods presented satisfactory results that they reflected, in the index, the occurred alterations in the population. The feces counting revealed satisfactory to also separate in bands of number of individuals the different populations and in the application to estimate populations based in the technique of Index-manipulation-index. The work raises innumerable questions about the sampling intensity, possible studies about the home range use and the degree of trustworthiness of the surveys based on direct countings.
354

What matters to student-athletes in college experiences

Zhao, Yan January 2013 (has links)
Thesis advisor: Henry Braun / Informed by Astin's Input-Environment-Outcome (I-E-O) model and Pascarella's general model, this study explored the nature of student-athletes' engagement in educationally purposeful activities, described their engagement patterns, and revealed the relationships between student engagement factors and college outcomes by class and gender for 2596 student-athletes from 30 Division-I institutions. This research demonstrated that the NSEE Five Benchmarks constructed for the general population did not fit student-athletes. Therefore, engagement factors for student-athletes were constructed based on a subset of component items from the Five Benchmarks. Hierarchical Linear Models (HLM) were then applied to National Survey for Student Engagement (NSSE) 2006 and the aggregated school level data from the NCAA. The research results reveal that the association patterns between engagement factors and college outcome variables Satisfaction (SA), General Education and Personal Competence (GEPC), and Personal and Social Development (PSD) across all class and gender subgroups are very similar, but differ from those for GPA. This research concludes that engagement in educationally purposeful activities is the best predictor for student-athletes' college outcomes (except GPA). The analyses also reveal that what students do on campus contributes more to their college outcomes than who they were at matriculation and which school they attend. In particular, for all outcomes, the fraction of the total variance due to between-school differences was very small and the relationships between the coefficients of school-level equations and school-level characteristics were inconsistent. The results of this study, along with other related studies, can help colleges devise strategies to better fulfill their primary obligation to create genuine educational opportunities for their student-athletes through fostering their holistic development. / Thesis (PhD) — Boston College, 2013. / Submitted to: Boston College. Lynch School of Education. / Discipline: Educational Research, Measurement and Evaluation.
355

The Effects of Using Likert vs. Visual Analogue Scale Response Options on the Outcome of a Web-based Survey of 4th Through 12th Grade Students: Data from a Randomized Experiment

Tucker-Seeley, Kevon R. January 2008 (has links)
Thesis advisor: Michael Russell / For more than a half century surveys and questionnaires with Likert-scaled items have been used extensively by researchers in schools to draw inferences about students; however, to date there has not been a single study that has examined whether alternative item response types on a survey might lead to different results than those obtained with Likert scales in a K-12 setting. This lack of direct comparisons leaves the best method of framing response options in educational survey research unclear. In this study, 4th through 12th grade public school students were administered two versions of the same survey online: one with Likert-scaled response options and the other with visual analogue-scaled response options. A randomized, fixed-effect, between-subjects experimental design was implemented to investigate whether the survey with visual analogue-scaled items yielded results comparable to the survey with Likert-scaled items based on the following four methods and indices: 1) factor structure; 2) internal consistency and test-retest reliability; 3) survey summated scores; and 4) main, interaction, and simple effects. Results of the first three indices suggested that both the Likert scale and visual analogue scale produced similar factor structures, were equally reliable, and yielded summated scores that were not significantly different across all three school levels (elementary, middle, and high school). Results of the factorial ANOVA suggested that only the main effect of school level was statistically significant but that there was no significant interaction between item response type and school level. Results of the post-survey questionnaires suggested that students at all school levels preferred answering questions on the survey with the VAS compared to the LS nearly three to one. / Thesis (PhD) — Boston College, 2008. / Submitted to: Boston College. Lynch School of Education. / Discipline: Educational Research, Measurement, and Evaluation.
356

Envelhecer em São Paulo: arranjo familiar e saúde / Aging in São Paulo: family arrangements and health

Nigro, Érika Laide 29 April 2013 (has links)
Introdução As recentes mudanças nos arranjos familiares e o envelhecimento populacional acarretam em novas demandas de saúde. Conhecer os arranjos familiares nos quais estão inseridos os idosos e a sua relação com o uso de serviços de saúde para a prevenção de doenças é de extrema importância para o planejamento de serviços e políticas públicas. Objetivo - Descrever os arranjos familiares aos quais pertencem os idosos do Município de São Paulo, SP, segundo características sociodemográficas e de saúde. Metodologia Estudo de base populacional com dados do Inquérito de Saúde de São Paulo ISA-Capital 2008. Participaram 920 idosos residentes da área urbana do Município de São Paulo. As variáveis de análise foram sociodemográficas, o tipo de arranjo familiar e uso de serviço de saúde consulta odontólogica; serviço de saúde; realização de papanicolau; mamografia; exame para prevenção câncer de próstata; exame para prevenção de câncer de intestino. A análise dos dados se deu por meio do teste de Chi-Quadrado de Pearson através dos softwares SPSS 18.0, módulo Complex Sample e STATA 11.0, módulo Survey. Resultados 31,4 por cento dos idosos moravam com cônjuge e descendência; 26,0 por cento só com cônjuge; 19,8 por cento só com descendência; 14,8 por cento sozinhos. Os idosos que moravam com cônjuge e descendência e só com o cônjuge foram os que mais realizaram exames preventivos para câncer de próstata e intestino, consultaram mais serviços odontológicos e de saúde na ausência de morbidades. Discussão - Idosos que moravam somente com descendentes foram que apresentaram piores condições socioeconômicas e os que menos fizeram exames preventivos, sugerindo que devem ser alvo de mais atenção e de campanhas para prevenção de doenças e agravos. / Background: Recent changes in family structure and population aging lead to new health demands. Cognize the family arrangements in which are embedded the elderly and its relationship to the use of health services for disease prevention is extremely important for service planning and public policies. Objective: Describe family arrangements which elderly belong in the city of São Paulo, according to sociodemographic and health characteristics. Methods: Population-based study with data from Health Survey in São Paulo, ISA-Capital 2008. The study was carried out with 920 elderly residents in São Paulo urban area. Analysis variables were sociodemographic, types of family arrangements and the use of health service for \'dental appointment\', \'health service\', \'Pap smear\', \'mammography\', \'prostate cancer prevention test\'; \'bowel prevention cancer test\'. Data analyses were conducted by Chisquare Test, SPSS 18.0 software, Complex Sample and STATA 11.0, Survey. Results: 31.4 per cent of the elderly used to live with spouse and offspring, 26.0 per cent with spouse only, 19.8 per cent with only offspring, 14.8 per cent alone. Elderly living with spouse and offspring, and only with their spouse performed more preventive screenings for prostate cancer and bowel, searched for more dental and health services when in absence of comorbidities. Discussion: Elderly living alone with offspring presented worst socioeconomic conditions and also performed less preventive tests, suggesting that they should be targeted for more attention and diseases prevention campaigns.
357

Retirement and Trust : the social potential among older Europeans

Garpenby, Filip January 2019 (has links)
Trust is seen as an essential ingredient in a flourishing society. It is a well-researched subject within the political science discourse, but few have looked at how retirement affect trust. This thesis aims to examine the relation between retirement and trust using regression analysis. Two hypotheses are formulated in relation to previous research findings; that trust increases when a person retires, and that this positive effect is expected to be stronger for retirees that engage in civil society. This thesis finds little evidence that supports the first hypothesis. Instead, retirement is negatively associated with trust, and this stands true after controls for other variables (health, education, age, year of birth) and a robustness test. In relation to the second hypothesis, this thesis finds that civic participation is indeed positively related to trust among the retired, although this relationship is rather weak.
358

Enterprise resource planning (ERP) diffusion and characteristics according to the system's lifecycle. A comparative view of small-to-medium sized and large enterprises.

Bernroider, Edward, Leseure, Michel J. January 2005 (has links) (PDF)
This report represents the next step of Enterprise Resource Planning (ERP)related research at the Department of Information Business at the Vienna University of Economics and Business Adminstration following previous work on the selection process. Based on 209 datasets originating from a primary, national and industry independent survey, it provides a descriptive oriented overview of main characteristics of ERP in all stages of the system's lifecycle, emphasising differences between small-to-medium sized and large enterprises (SMEs and LEs). The given research topics in particular comprise software diffusion, resources allocated, strategic project guidance, investment drivers, considered and chosen solutions, team structures, selection criteria, information gathering, methodical support, implementation approaches, acompanying business strategies, implementation problems, perceived utilisation of ERP benefits, firm level ERP impact, and the role of ERP systems as technology enabler. Future work based on the gathered data will document analytical projects undertaken in particular focusing on ERP success, enterprise integration, organisational fit of ERP, and BPR/BPI related questions. / Series: Working Papers on Information Systems, Information Business and Operations
359

Acessibilidade no desenvolvimento de sistemas web: um estudo sobre o cenário brasileiro / A survey on the accessibility awareness of people involved in Web system development in Brazil

Freire, André Pimenta 07 March 2008 (has links)
A universalização do acesso ao conteúdo disponibilizado em sistemas Web tem se tornado crucial para que todas as pessoas, independente de deficiências ou de outras restrições possam ter acesso a ele. Diversos estudos indicam que, apesar da instituição de leis federais sobre acessibilidade para conteúdo Web em diversos países, muitos sítios ainda apresentam problemas. A falta de conscientização das pessoas envolvidas em projetos de desenvolvimento Web sobre a acessibilidade e a não utilização de técnicas adequadas para desenvolvimento de aplicações têm um impacto considerável sobre a acessibilidade. Levantamentos foram realizados com o objetivo de identificar características dos desenvolvedores sobre o conhecimento e uso de técnicas para acessibilidade. Entretanto, os estudos realizados investigaram somente o uso de um conjunto restrito de técnicas e, além disso, também não investigaram a correlação entre as respostas obtidas pelos participantes e o nível de acessibilidade das páginas desenvolvidas por eles. Neste trabalho, propõe-se efetuar um levantamento sobre a percepção de acessibilidade e uso de técnicas para desenvolvimento de sistemas Web considerando acessibilidade com pessoas envolvidas em projetos de desenvolvimento Web no Brasil de diferentes áreas de atuação. Este levantamento foi acompanhado de avaliações de acessibilidade automatizadas com uso de métricas sobre sítios desenvolvidos pelos participantes, para verificar a influência dos fatores investigados na acessibilidade dos sítios e na percepção de acessibilidade dos participantes. O levantamento realizado contou com a participação de 613 participantes de todo o Brasil. Os resultados indicaram que no Brasil a percepção da acessibilidade por pessoas que participam de projetos de desenvolvimento Web ainda é bastante limitada. Mais do que promover o treinamento das pessoas envolvidas em projetos sobre questões técnicas, é necessário promover maior conscientização sobre a acessibilidade e sobre os problemas que pessoas com diferentes restrições e habilidades enfrentam ao utilizar a Web. / Universal access to content in Web based systems is an essential aspect to enable everyone to have access to it, regardless of disabilities or any other restrictions. Several studies indicate that, although federal legislation regarding to Web accessibility have been promulgated in many countries, accessibility is still an issue for many Web sites. The limited awareness of accessibility by people involved in Web development and the lack of appropriate use of development techniques in the development of applications have a deep impact on accessibility. A few surveys have been carried out to identify the main characteristics of Web developers regarding accessibility concepts and techniques for accessibility. However, the studies reported up to this date have only investigated the use of a restricted set of techniques by developers. Besides, they have not addressed the analysis of the correlation between the answers provided by the subjects and the accessibility level of their Web pages. The proposal of the work presented in this master\'s thesis is the development of a survey on the accessibility awareness and on the use of techniques for accessibility by people involved in the development of Web based systems. Automatic metric based accessibility evaluations on the Web sites developed by the subjects were carried out to support the investigation of the impacts that the issues investigated have on the Web pages accessibility and on the accessibility awareness. The survey was answered by 613 subjects from all Brazilian states. The results show that in Brazil the accessibility awareness is still very limited. Training people involved in Web projects on technical issues alone is not enough. It is necessary to promote a wider awareness of accessibility and of the problems people with different restrictions and abilities deal with when using the Web
360

First results from high redshift quasar searches in VIKING

Findlay, Joseph January 2011 (has links)
This thesis presents the discovery of the first luminous z & 6.5 quasars in the VISTA kilo-degree Infrared Galaxy Survey (VIKING). After some basic quality control, quasar selection is investigated via use of initial data supplementedwith detailed modelling of the photometric and spatial distributions of stars of spectral type M, L and T, which are known to be the cause of significant contamination in quasar colour selection spaces. Optimised selection constraints are placed on detection significance and morphology and the performance of a traditional colour selection technique is compared to a Bayesian model comparison technique. The latter is found to offer a ∼10 per cent gain in completeness over traditional colour selection. Quasar candidates are ranked via Bayesian model comparison and a subset of the highest ranked objects are put forward for follow-up imaging. In June 2011, 44 high-z quasar candidates underwent deep optical i- and z- band imaging on the ESO NTT. Just 6 of these candidates were found to have optical colours consistent z & 6.5 quasars. Spectroscopic follow-up of these objects is ongoing, but thus far three new quasars have been discovered at redshifts of z=6.5, 6.7, 6.9. This discovery rate is consistentwith zero evolution in the rate of decline in quasar space density from z & 6.4. This differs fromthe latest results from UKIDSS. Further results expected from these and other surveys will begin to constrain the true nature of quasar space density evolution in the near future. The discovery of three z ≥ 6.5 quasars in VIKING is a significant highlight in the first year of VISTA science operations. These quasars will remain important probes of the high-z universe throughout the next decade.

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