• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 806
  • 297
  • 183
  • 55
  • 50
  • 38
  • 36
  • 36
  • 33
  • 29
  • 23
  • 14
  • 14
  • 14
  • 14
  • Tagged with
  • 1894
  • 487
  • 323
  • 251
  • 212
  • 183
  • 181
  • 167
  • 132
  • 121
  • 117
  • 109
  • 107
  • 106
  • 100
  • 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.
771

The utilisation of HIV services on campus by the students of the University of the Western Cape

Edmund, Ampeire January 2009 (has links)
Magister Philosophiae - MPhil / This qualitative study was conducted from June to November 2009, using designed questionnaires for sixty three (63) registered students and five (5) HIV program staff .The main reason for this study was to understand the underlying factors for why students may utilize or may not utilize the available HIV services on campus. The willingness of students to express their views was a positive finding in this study. Majority students who answered the questionnaires were quite aware of these HIV services. They also agreed that services provided are good. The study also found out that females utilized these services more than males and majority of students learnt of the HIV services from the HIV programs pamphlets and website thus indicating that the HIV program at UWC is function. However the research study also found out that the though students are aware of these services few utilize them and majority are females thus leaves a question why males do not utilize. / South Africa
772

The Cultural Impact on Information System Utilization : A comparative study between Sweden and Nicaragua

Nilsson, Michelle January 2018 (has links)
Information system (IS) utilization and success are influenced by culture due to that the management is handled by individuals and their values that affect their behavior. Therefore, culture is an important aspect for implementation and evaluation of an information system and IS utilization. Some countries absorb the technical development easier than others which can be the reason for several failed IS implementations. This makes an impact on globalization due to the difficulties to implement information systems in subsidiaries. The purpose of this research was to study the cultural impact on IS utilization by identifying the cultural factors that impacts IS utilization and furthermore how an addition of a cultural dimension in IS utilization theories can affect implementation and evaluation of an information system. To study this, the theory Task-Technology Fit (TTF) was used for the collection of empirical data which further was analyzed with Hofstede´s dimensions of national culture. The conducted study was a qualitative method with a deductive approach conducted through interviews and observations of partner companies in Sweden and Nicaragua. The result identified problem areas in the two partner companies regarding utilization of selected systems and further, the result describes the different parts that affect a fit between the technology and the tasks it is meant to accomplish. The result was discussed with the analysis of Hofstede´s dimensions of national culture to identify cultural factors and aspects that could explain why the fit between technology and the tasks were not ultimate. The connection between culture and IS utilization are further discussed together with how the knowledge and awareness of cultural impact can provide benefits for multinational businesses. The conclusion argued the importance of knowledge contribution has due to globalization, factors that affect the cultural impact and what a separated dimension for culture in IS utilization theories could provide for the multinational businesses.
773

Využití videokamery při fyzikálním měření / Utilization of video camera at physical measurement

ULRICH, Vratislav January 2015 (has links)
Utilization of video camera at physical measurement This thesis is aimed to use of a camcoder during physical measurements purposed for high school students. The thesis includes theoretical part, which is about physics lesson basic structure viewed from the point of educational goals. Further it describes a manual for recording the video for video analysis and basic presentation of the Tracker program. The practical part shows applicable excercises and their physical analysis. Exemplary working sheets in an electronic form filled in according to videoanalyses in the Tracker program are included as well.
774

Locus of Control of Reinforcement Applied to the Prediction of Use of Medical Services

Flynn, Michael Howard 05 1900 (has links)
Increases in the number of users of the medical delivery system, along with an ever-increasing variety of available services, makes it desirable to identify those individuals who will benefit most from its services. With the growing reliance on third party payment, economic limitations no longer effectively restrict the use of the system's resources to those individuals who are truly ill. A framework is needed whereby individuals who are medically ill can be separated from those whose needs might be more effectively addressed by other services. A variety of means, including locus of control, has been used in the attempt to make such discriminations. In conclusion, it was observed that the low magnitude of obtained relationships presents opportunities for future research, but disallows meaningful prediction at the present time.
775

Estudos de utilização de medicamentos em crianças na cidade de Salvador: análise de fatores determinantes.

Santos, Djanilson Barbosa dos January 2008 (has links)
p. 1-127 / Submitted by Santiago Fabio (fabio.ssantiago@hotmail.com) on 2013-04-25T19:07:36Z No. of bitstreams: 1 99999999999qqq.pdf: 1226981 bytes, checksum: 67831b3311099f69a1ec51212bc4c811 (MD5) / Approved for entry into archive by Maria Creuza Silva(mariakreuza@yahoo.com.br) on 2013-05-04T17:25:42Z (GMT) No. of bitstreams: 1 99999999999qqq.pdf: 1226981 bytes, checksum: 67831b3311099f69a1ec51212bc4c811 (MD5) / Made available in DSpace on 2013-05-04T17:25:42Z (GMT). No. of bitstreams: 1 99999999999qqq.pdf: 1226981 bytes, checksum: 67831b3311099f69a1ec51212bc4c811 (MD5) Previous issue date: 2008 / Introdução: A relação entre fatores determinantes e utilização de medicamentos prescritos e não prescritos na população pediátrica é pouco estudada, apesar de se reconhecer os problemas existentes nessa área. Objetivo: Descrever o perfil de utilização e determinar os fatores associados ao uso de medicamentos prescritos e não prescritos em crianças em Salvador, Bahia, Brasil. Métodos: Foi realizado um inquérito domiciliar de base populacional, no período de fevereiro a maio de 2006, em que estudou-se crianças provenientes de domicílios selecionados através de micro-regiões representativas de Salvador. O consumo de medicamentos prescritos e não prescritos nos 15 dias anteriores à entrevista foi considerado à variável dependente. Foram considerados três grupos de variáveis exploratórias: socioeconômicas, estado de saúde e indicadores de uso de serviços de saúde. A análise ajustada foi conduzida através de uma regressão logística multinomial seguindo um modelo hierárquico. Resultados: Das 1382 crianças, 663 (48%) haviam consumido pelo menos um medicamento nos últimos 15 dias: 267 (40,3%) referidas pela mãe haviam consumido medicamentos prescritos e 396 (59,7%) consumiram medicamentos não prescritos. Os grupos farmacológicos entre os prescritos mais consumidos foram analgésicos/antitérmicos (42,3%), antibacterianos sistêmicos (21,3%) e antiasmáticos (16,5%). Os grupos farmacológicos não prescritos mais consumidos foram analgésicos/antitérmicos (65,2%), antitussígenos (15,7%) e vitaminas (9,3%). Após ajustamento por variáveis de confusão, as seguintes variáveis apresentaram associações positivas com o uso de medicamentos prescritos: idade (4-5 e 6 anos), autopercepção de saúde ruim/muito ruim, presença de doença crônica, interrupção de atividades por problemas de saúde, número de consultas médicas, recebeu atendimento de saúde independente de estar doente e relato de gastos com medicamentos. O uso de medicamentos não prescritos apresentou associação negativa com mães de cor da pele negra e associação positiva com idade (4-5 anos), sexo feminino, idade materna (30-39 anos), autopercepção de saúde ruim/muito ruim, interrupção de atividades por problemas de saúde e relato de gastos com medicamentos. Conclusões: Os resultados apontam para a necessidade de programas para otimizar o acesso e racionalização do uso de medicamentos entre crianças no Brazil. / Salvador
776

Utilização de resíduos agroindustriais para a produção de enzimas / Using agroindustrial residues for the production of enzymes

Araújo, Micaela Lopes de 27 March 2013 (has links)
Brazil, especially the Northeast, has an economy based on agricultural production, which results in the generation of large volumes of waste. Such waste, if not disposed properly, generate problems of environmental impact due to the volume and difficulty of decomposition, leading to the loss of resources, with significant contribution to the problem of recycling and conservation of biomass. Because of this, the biotechnological processes have been presented as an alternative to use these materials, aggregating high-value products from disposal with the formation of products of commercial interest, such as enzymes and organic acids, thus fulfilling an environmental and social. The application of solid-state fermentation (SSF) is one of these alternatives, especially because it is a simple process and low cost. It was evaluated in this work, the use of agro-industrial wastes as substrate for the production of hydrolytic enzymes by solid state fermentation from the fungus Aspergillus niger conducted in 250 mL Erlenmeyer flasks with medium supplemented mineral in order to have a final moisture content of around 60%. The kinetics of growth was accompanied by measurement of enzyme activities, acidity, pH, reducing sugars (RS) and total reducing sugars (TRS). Were used as substrates in fermentations green coconut husk, bagasse lime orange, pineapple pulp and corn cob. Due to the decrease in pH during the fermentation, we studied the influence of the same residue of green coconut shell, changing the pH of the mineral. A mixture of flour, coconut husk and corncob for presenting the greatest enzymatic activity in relation to other waste was used in a study in which there was a 22 factorial design, evaluating the influence of humidity and proportion mixing the waste in the production of enzymes of interest. It was observed that the enzyme production was greater than those obtained in earlier experiments and found the conditions for 48h of cultivation, moisture content and proportion of 90% coconut shell flour, corncob and 0,5:1,5, respectively. The principal components analysis (PCA) allowed us to understand more clearly the influence of variables over time of fermentation, 24 to 48h, being represented by two major components in the two fermentations could explain more than 80% of the variance of the results obtained. / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / O Brasil, em especial a região Nordeste, possui uma economia baseada na produção agrícola, o que resulta na geração de grandes volumes de resíduos. Tais resíduos, quando não adequadamente dispostos, geram problemas de impacto ambiental devido ao volume e à dificuldade de decomposição, levando também à perda de recursos, com significativa contribuição para o problema da reciclagem e conservação da biomassa. Em função disto, os processos biotecnológicos vêm se apresentando como uma alternativa de utilizar esses materiais, agregando alto valor a produtos de descarte com a formação de produtos de interesse comercial, como enzimas e ácidos orgânicos, cumprindo, assim, uma função ambiental e social. A aplicação da fermentação semi-sólida (FSS) é uma destas alternativas, destacando-se por ser um processo simples e de baixo custo. Avaliou-se, neste trabalho, o uso de resíduos agroindustriais como substrato para a produção de enzimas hidrolíticas por fermentação semi-sólida a partir do fungo Aspergillus niger, conduzidas em frascos Erlenmeyer de 250 mL suplementados com meio mineral, de forma a se ter um conteúdo final de umidade em torno de 60%. A cinética de crescimento foi acompanhada através de medida das atividades enzimáticas, acidez, pH, açúcares redutores (AR) e açúcares redutores totais (ART). Foram utilizados como substratos nas fermentações casca de coco verde, bagaço de laranja lima, polpa de abacaxi e sabugo de milho. Em função da queda do pH ao longo da fermentação, estudou-se a influência do mesmo no resíduo de casca de coco verde, alterando o pH do meio mineral. A mistura das farinhas de casca de coco e de sabugo de milho, por apresentarem as maiores atividades enzimáticas em relação aos demais resíduos, foi utilizada num estudo em que se realizou um planejamento experimental 22, avaliando-se a influência da umidade e da proporção da mistura dos resíduos na produção das enzimas de interesse. Observou-se que a produção enzimática foi maior que as obtidas em experimentos prévios e encontradas nas condições de 48h de cultivo, teor de umidade em 90% e proporção de farinha de casca de coco e de sabugo de milho 0,5:1,5, respectivamente. A análise de componentes principais (ACP) permitiu entender de forma mais clara a influência das variáveis com o passar do tempo de fermentação, 24 para 48h, sendo representadas por duas componentes principais, que nas duas fermentações conseguiram explicar mais de 80% das variâncias dos resultados obtidos.
777

POSITRON EMISSION TOMOGRAPHY UTILIZATION DEVELOPMENT IN HONG KONG

Sitt, Steve 01 August 2012 (has links)
The introduction of clinical Positron Emission Tomography (PET) in oncology in the 1990s has substantially changed the management of patients with cancer and become one of the diagnostic modalities with the fastest growth worldwide (Buck et al., 2010). The major hurdle delaying the proliferation of PET was partly due to its high initial investment and insufficient third-party reimbursement (Keppler & Conti, 2001). Hong Kong, a region with about half the economic strength of Germany, was able to sustain a higher ratio of PET-CT scanners than that of Germany. Through the study of the PET utilization in Hong Kong, this research is to (i) explore the factors contributing to this phenomenon; and (ii) find out if those factors are applicable to other developing countries. The key factors found contributed to a higher ratio of PET-CT scanners in Hong Kong were: 1) medical expertise in a regionally profound disease; 2) the direct payment culture which enables an economically efficient and a cost-effective operation; 3) the influx of patients from neighboring countries; and 4) the reputation of its medical services. Applying these factors, citizens in developing countries were able to have access to the latest and expensive medical technology.
778

ANALYZING CLINICAL PRESENTATION, SERVICE UTILIZATION, AND CLINICAL OUTCOME OF FEMALE SEXUAL MINORITY COLLEGE STUDENTS

Kay, Heather 01 August 2013 (has links)
Researchers examining clinically-relevant trends for sexual minority women have found evidence of psychological distress and greater utilization of mental health services compared to heterosexually-identified women. However, the results of many research studies with this population have methodological limitations surrounding recruitment of participants, cross-sectional methods, and participant report of clinical services utilized. Few researchers have sought to analyze actual clinical presentation, service utilization, or clinical outcome of sexual minority women in a treatment-setting. This study is an in-depth clinical analysis of 215 sexual minority woman who sought services at a large Midwestern university counseling center over a period of two years and nine months. The analyses conducted allowed for the initial clinical presentation, service utilization, and clinical outcome of sexual minority women to be described and compared to comparative samples of service-seeking female college students. Sexual minority women were found to have a greater incidence of prior suicidality and prior counseling compared to heterosexual women at the same agency. Sexual minority women also reported greater symptoms of social anxiety, eating concerns, and family distress than heterosexual women at the same agency. Of seven examined predictors of service utilization, sexual minority identity label, age, and academic term of service initiation differentiated brief and extended service utilization from moderate service utilization. Prior use of counseling, psychological distress, racial-ethnic minority status, and time in the semester of initiation of services were not significant predictors of service utilization. Implications and limitations of these findings are presented, and future directions for research and intervention are discussed.
779

Uso espacial do campo nativo por bovinos e a influência de fatores bióticos e abióticos no processo de pastejo / Spacial use of heterogeneous environment and the influence of biotic and abiotic factors in grazing heifers in native pasture

Santana, Marcela Moreira January 2016 (has links)
O trabalho foi conduzido na EEA-UFRGS, em Eldorado do Sul/RS no período de setembro de 2014 a maio de 2015 com o objetivo de avaliar a importância relativa da estrutura da vegetação e das variáveis abióticas (posição das cercas, da água, da porteira e do sal) sobre o pastejo de novilhas em campo nativo e avaliar se a introdução de sal em pontos estratégicos muda o uso relativo do espaço no ambiente de pastejo, por novilhas em campo nativo do bioma Pampa. Foi utilizada uma área onde é conduzido um ensaio de longa duração onde a pastagem natural é manejada sob níveis de oferta de forragem (kg de maté ria seca . kg de peso vivo-1) há 30 anos, sendo que para este experimento foram utilizadas as ofertas de 2, 3, 4 e 2-3 (2 durante a primavera e 3 no restante do ano). Novilhas de 12 meses foram monitoradas com GPS em intervalos de 2 minutos, gerando mapas de utilização da área. Foram identificadas áreas subutilizadas, onde foram inseridos blocos de sal de maneira estratégica. Foram feitas avaliações com o objetivo de caracterizar a estrutura da vegetação antes e depois da colocação do sal nos piquetes. Através de modelo linear foi analisada a influência dos fatores bióticos - altura da vegetação, biomassa do estrato inferior e entouceiramento - e abióticos - água, cercas e sal - no pastejo antes e depois da introdução do sal. Para todos os fatores (água, cerca, altura da vegetação, biomassa e entouceiramento) houve influência muito significativa (P < 0,001), em efeito simples ou quadrático, antes do uso do sal. Após a colocação do sal houve também influência muito significativa (P < 0,001) de todos fatores. O efeito da interação do tratamento (sal estratégico) com sal foi pouco significativa (P < 0,010), bem como para a interação com biomassa (P < 0,045). Os fatores bióticos não são fixos, sofrendo alteração não apenas do pastejo, mas também das condições climáticas, assim como estas interferem no comportamento animal. Nos mapas de vegetação podemos ver diminuições de entouceiramento, no entanto quando analisada a estrutura da vegetação não modificou com o uso estratégico do sal, isso pode ter ocorrido pelo curto período do experimento, que não foi suficiente para alterar a vegetação. Estudos com maior tempo de observação são necessários para avaliar o efeito da mudança de pontos atrativos na vegetação. / The study was conducted in the EEA-UFRGS, in Eldorado do Sul / RS from September 2014 to May 2015 in order to assess the relative importance of the structure of vegetation and abiotic variables (position of the fences, the water, gate and salt) on the grazing heifers in native pasture and assess whether the introduction of salt at strategic points changes the relative use of space in the grazing area for heifers in native pasture un the Pampa biome. An area where it is conducting a long-term experiment where natural pasture is managed under herbage allowance levels was used (kg dry matter. kg live weight -1) since 30 years, and for this experiment were used the treatments 2, 3, 4 and 2-3 (2 during spring and 3 the rest of the year). Heifers with 12 months were monitored with GPS using 2-minute intervals, generating maps of use of the area. Were identified underutilized areas, where salt blocks were placed strategically. Evaluations were made in order to characterize the vegetation structure before and after putting salt on the paddocks. Through linear model was analyzed the influence of biotic - vegetation height, lower stratum biomass and tussocks - and abiotic factors - water, fences and salt - in grazing before and after the introduction of salt. For all factors (water, fence, vegetation height, biomass and tussocks) was very significant influence (p <0.001), in single or quadratic effect, before use of the salt. After placing the salt was also very significant influence (p <0.001) for all factors. The effect of the interaction of treatment (strategic salt) with salt was low significant (P <0.010), as well as interaction with biomass (P <0.045). Biotic factors are not fixes, suffering not only change the grazing, but also the weather, as these interfere in animal behavior. In vegetation maps can see tussocks decreases, however when analyzing the vegetation structure did not change with the strategic use of salt, this may be due to the short period of the experiment, which was not enough to change the vegetation. Studies with more observation time is needed to evaluate the effect of changing attractive points in the vegetation.
780

Padrão de dispensação de medicamentos em uma farmácia pública municipal do estado do Rio Grande do Sul

Costa, Mariana Portal da January 2017 (has links)
Introdução: Nos últimos anos, o consumo de medicamentos tem aumentado em todo o mundo e também no Brasil. Investigar este consumo numa determinada população é relevante para a gestão da política de medicamentos e o gerenciamento dos recursos em saúde, pois serve como ferramenta no planejamento de ações de prevenção e promoção de saúde. Objetivo: Descrever a prevalência e a tendência de consumo de medicamentos por intermédio da dispensação numa Farmácia Pública Municipal no período de oito anos. Metodologia: Trata-se de um estudo descritivo, retrospectivo, baseado em dados secundários obtidos por meio dos relatórios de dispensação de medicamentos do sistema informatizado da Farmácia Pública Municipal de Glorinha (RS) no período de 2008 a 2015. A população do estudo constitui-se de todos os usuários que tiveram pelo menos um medicamento da Relação Municipal de Medicamentos. As variáveis demográficas foram sexo e idade. Para fins de análise, os medicamentos foram categorizados no primeiro (Grupo Anatômico – GA), segundo (Grupo Terapêutico Principal – GTP) e quinto nível (Substância Química – SQ) da classificação Anatomical Therapeutic Chemical (ATC) e seu consumo analisado pela Dose Diária Definida (DDD) por 1.000 habitantes por dia. Resultados: A população do estudo foi 9.967 pessoas, sendo o maior percentual do sexo feminino (52,8%) e a faixa etária mais prevalente de 0 a 9 anos (16,2%). O consumo pelas mulheres é maior que os homens em todas as faixas etárias. Em relação ao consumo de medicamentos dispensados por usuário por ano: os GA mais prevalentes foram sistema nervoso (22,1%) e sistema cardiovascular (19,5%); os GTP mais prevalentes foram anti-inflamatórios e antirreumáticos (11,3%) e analgésicos (10,5%) e as SQ mais consumidas foram ibubrofeno (11,3%) e paracetamol (9,9%). Quanto à quantidade de unidades farmacêuticas dispensadas por ano: os GA mais prevalentes foram sistema (43,1%) e sistema nervoso (26,7%); os GTP mais prevalentes foram os agentes com ação no sistema renina-angiotensina (18,0%) e psicoanalépticos (10,8%) e as SQ mais consumidas foram captopril (8,9%) e enalapril (7,9%). Sobre o total da DDD (DDD/1.000 habitantes/dia): os GA de maior consumo foram os medicamentos do sistema cardiovascular (47,6%) e do sistema nervoso (15,3%); os GTP mais utilizados foram os medicamentos com ação no sistema renina-angiotensina (22,7%) e os diuréticos (10,3%) e as SQ mais utilizadas foram enalapril (14,7%) e omeprazol (9,6%). Dentre os medicamentos disponibilizados foi observado um maior decréscimo de dispensação nos seguintes grupos terapêuticos principais: ação no sistema renina-angiotensina (93,0%), na diabetes (82,4%) e os diuréticos (79,0%). Conclusões: Apesar da ampliação do acesso da população aos medicamentos pelas políticas públicas vigentes de Assistência Farmacêutica, a expressiva e crescente prevalência de consumo e a sua utilização de forma não racional causa preocupação. Dentro deste contexto, o profissional farmacêutico desempenha um papel relevante na compreensão e enfrentamento do problema e, desta forma, pode também contribuir na elaboração de estratégias para educação em saúde e para o uso racional de medicamentos na população por intermédio de estudos na área de Farmacoepidemiologia. / Introduction: In recent years, the consumption of medicinal products has increased worldwide and also in Brazil. Investigating this consumption in a given population is relevant for the management of health resources, as it serves as a tool in the planning of health preventive and promotion actions. Objectives: Describing the prevalence and trend of the consumption of medicinal products through the dispensing procedure at a Municipal Public Pharmacy over a period of eight years. Methodology: This is a descriptive, retrospective study, based on secondary data obtained through the reports of dispensing procedures of medicines from the computerized system of the Municipal Public Pharmacy in Glorinha (RS), from 2008 to 2015. The studied population consisted of all users who got at least one medication from the Municipal Medication List. Demographic variables were sex and age. For the purposes of analysis, the medicinal products were categorized in the first (Anatomical Group – AG), second (Therapeutic Subgroup – TS) and fifth level (Chemical Substance – CS) of the Anatomical Therapeutic Chemical (ATC) classification, and its consumption analyzed by the Defined Daily Dose DDD (1,000 inhabitants per day). Results: The studied population was 9,967 people, the highest percentage being female (52.8%) ant the most prevalent age group that of 0 to 9 years old (16.2%). Consumption by women is greater than men in all age groups. Respecting the consumption of medicines dispensed to users per year: the most prevalent AG were nervous system (22.1%) and cardiovascular system (19.5%); the most prevalent TS were antiinflammatory and antirheumatic (11.3%) and analgesics (10.5%), and the most commonly consumed CS were ibuprofen (11.3%), and acetaminophen (9.9%). Regarding the quantity of pharmaceutical units dispensed per year: the most prevalent AG were cardiovascular system (43.1%) and nervous system (26.7%); the most prevalent TS were agents action on the renin angiotensin system (18.0%) and psychoanalytics (10.8%), and the most commonly used CS were captopril (8.9%) and enalapril (7.9%). About the total DDD (DDD/1,000 inhabitants/day): the most consumed AG were the cardiovascular system medications (47.6%) and the nervous system (15.3%); the most used TS were the medicines with action in the renin angiotensin system (22.7%) and the diuretics (10.3%) and the most used CS were enalapril (14.7%) and omeprazole (9.6%). Among the medicinal products available, a greater decrease in the following main therapeutic groups was observed: action in the renin angiotensin system (93.0%), diabetes (82.4%) and diuretics (79.0%). Conclusions: Despite the increasing access of the population to medication by the current public policies of Pharmaceutical Assistance, the expressive and growing prevalence of consumption and its use of form non-rational causes concern. Within this context, the pharmacy professional plays a relevant role in understanding and coping with the problem and, in this way, can also contribute in the elaboration of strategies for health education and for the rational use of medicines in the population through studies in the area of Pharmacoepidemiology.

Page generated in 0.0741 seconds