• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 464
  • 148
  • 145
  • 30
  • 29
  • 13
  • 10
  • 10
  • 8
  • 7
  • 7
  • 7
  • 7
  • 7
  • 7
  • Tagged with
  • 999
  • 167
  • 99
  • 90
  • 73
  • 69
  • 60
  • 60
  • 58
  • 51
  • 47
  • 46
  • 45
  • 42
  • 41
  • 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.
121

Predictors of smoking initiation in African American adolescents

Kienzle, Jennifer 27 July 2009 (has links)
Cigarette smoking and other forms of tobacco use are responsible for over 440,000 deaths per year in the U.S. Health consequences associated with cigarette smoking include cardiovascular disease, respiratory disease, and cancer. Despite awareness of the health risks, approximately 21% of the U.S. adult population smokes. Efforts to-date to reduce smoking-related disease and illness have focused on prevention and intervention strategies that encourage cessation. Adolescence is a critical period for both intervention and prevention. Because more than three-fourths (80%) of adult smokers reported starting to smoke prior to the age of 18, prevention and brief intervention is likely to be most effective during this early period of time. In addition, earlier age of onset for smoking is associated with greater subsequent dependence severity, more substantive health sequelae, and less successful outcomes following subsequent quit attempts. Several studies have explored potential demographic and psychosocial variables that may help predict the likelihood adolescents may initiate smoking. Interestingly, many of these studies have focused predominately on Caucasian populations. Thus, is it unclear whether such findings hold true with population subgroups such as African American youth. In research to-date, AA and Caucasian groups differ in rates of smoking initiation, subsequent levels of nicotine dependence, and tobacco cessation efforts. Additionally, as adults, AA bear a disproportionate weight of smoking-related adverse health effects. Previous studies posit that certain variables (demographics, social/peer influences) may differentially influence smoking in AA adolescents. Clearly, more research is needed comparing predictors of AA adolescent smoking to those published with predominantly Caucasian adolescent samples. The present study (N=150) employed a computer-directed assessment to examine smoking in an urban sample of AA adolescents recruited through their primary care provider. The assessment included demographic and psychosocial variables previously found to predict the likelihood of an adolescent trying a cigarette in Caucasian adolescent samples (e.g., peer smoking, adult smoking in the home, self-esteem, and self-efficacy). Findings indicated that AA adolescent smokers (ever smokers) were more likely to have friends who have tried smoking, were more likely to have adult smokers in the home, and scored lower in self-efficacy skills germane to avoiding situations where smoking was present, as compared to nonsmokers. Additionally, computerized assessment for tobacco use was found to be useful in clinic settings. Study findings can aid in the development of specialized prevention and cessation campaigns for minority populations.
122

Katecheze jako uvedení do mše / Catechesis as an Introduction to the Mass: A Protestant's view

Živný, Tomáš January 2012 (has links)
Katecheze jako uvedení do mše : Očima jednoho evangelíka Summary Catechesis as an introduction to the Mass: A Protestant's view In my diploma thesis I address the relationship between catechesis and the Mass, namely how the believers of the Catholic Church are acquainted with what is (or is meant to be) the centerpiece of their religious life. In the first - theoretical - part of the paper I first explain what the Mass is and how it has evolved historically, which gradually leads me to the analysis of its present form and content. I then turn my attention to catechesis, whose historical development I outline as well, and to its place among the various services of the Church. I also mention the close connection between catechesis and liturgy, which both contain a dimension of the other.Another common feature of catechesis and the Mass is that they are both Christocentric, yet at the same time anthropological in their focus on man. In the second part of my thesis I deal with the practical form of introduction to the Mass, which takes place with the help of catechetical aids (catechisms, books or coloring books). I analyze these aids and then conclude with the mention of the liturgical basis of the catechesis of converts and of those who are preparing for their First Holy Communion. Keywords catechesis, Mass,...
123

Studium variability IRES elementů viru hepatitidy typu C / Variability of the IRES elements of the hepatatis C virus

Zeman, Jakub January 2013 (has links)
Hepatitis C virus (HCV) has an internal ribosomal binding site (IRES) located near the 5ʹ end of its genome. The HCV IRES is capable of direct binding to the 40S small ribosomal unit and eukaryotic initiation factor eIF3, and can initiate translation after the assembly of the whole 80S ribosome. Various molecular types can act as IRES inhibitors. Small molecule compounds seem to be the most promising agent for use in the clinic. The main objective of the thesis was to develop a system for searching for small molecule compound inhibitors of HCV IRES in a library of chemical compounds. Several variants of vector carrying bicistronic cassettes were prepared. After validating their functionality by transient transfection of mammalian cell cultures, mammalian stable cell lines were established. These stable cell lines will allow for automatization of the search for small molecule compound inhibitors of HCV IRES. Our second objective was to study the variability of HCV IRES sequences in patient samples. The samples were analysed by temperature gradient gel electrophoresis (TGGE). Select specimen were sequenced, cloned into a vector with bicistronic cassette and analysed by flow cytometry. In this was we evaluated the effect of specific mutations in the HCV IRES sequence on the level of IRES dependent...
124

Investigating factors contributing to late initiation of antenatal care in a health facility in Cape Town

Roelofse, Maryke January 2018 (has links)
Magister Curationis - MCur / Despite the awareness of the importance of initiating antenatal care in the first trimester of a pregnancy (before 12 weeks gestation), late initiation of antenatal care (on or after 24 weeks of gestation) remains a common trend amongst pregnant women. The late initiation of antenatal care poses such a risk, to both the pregnant women and their unborn babies that it can contribute to maternal and foetal mortality and morbidity. The late initiation of antenatal care, an entirely avoidable occurrence, has an impact on targets set by the United Nations Millennium Development Goals (MDGs), now focusing on the Sustainable Development Goals (SDG‟s) set out by the United Nations. This study aim to investigate the factors which contribute to and cause the late initiation of antenatal care in pregnant women in a region in the Western Cape. Aim: The aim of this study was to investigate the factors that influence pregnant woman and contribute to late initiation of antenatal care (after 24 weeks gestational age) in one health facility/district in Cape Town. The findings of the study identified possible factors that may cause pregnant women to initiate antenatal care late in pregnancy and these findings could facilitate planning and possible interventions targeting the importance of early initiation in the community.
125

Childhoods dis-ordered: Non-realist narrative modes in selected post-2000 West African war novels

Addei, Cecilia January 2017 (has links)
Philosophiae Doctor - PhD / This study explores how selected West African war novels employ non-realist narrative modes to portray disruptions in the child’s development into adulthood. The novels considered are Chris Abani’s Song for Night (2007), Ahmadou Kourouma’s Allah is Not Obliged (2006), Uzodinma Iweala’s Beasts of No Nation (2005) and Delia Jarrett-Macauley’s Moses, Citizen and Me (2005). These novels strain at the conventions of realism as a consequence of the attempt to represent the disruptions in child development as a result of the upheavals of war. A core proposition of the study is to present why the authors in question are obliged to employ non-realist modes in representing disrupted childhoods that reflect the social and cultural disorder attendant upon war. The dissertation also asks pertinent questions regarding the ideological effect of these narrative strategies and the effect of the particular stylistic idiosyncrasies of each of the authors in figuring childhood in postcolonial Africa. The novels in question employ surrealism, the absurd, the grotesque and magical realism, in presenting the first person narratives of children in war situations, or the reflections of adult narrators on children affected by war. This study further analyses the ways the aesthetic modes employed by these authors underscore, in particular, children’s experiences of war. Through strategic use of specific literary techniques, these authors highlight questions of vulnerability, powerlessness and violence on children, as a group that has been victimised and co-opted into violence. The study further considers how these narrative transformations in the representations of children in novels, capture transformations in ideas about childhood in postcolonial Africa.
126

A linguagem revelando o desenvolvimento do pesquisador na prática da Iniciação Científica / The language revealing the researchers development in the practice of Scientific Initiation

Santos, Thiago Jorge Ferreira 25 February 2016 (has links)
Esta pesquisa teve como objetivo compreender o processo da Iniciação Científica (IC) enquanto um dispositivo de formação do pesquisador na graduação, analisando especificamente o modo como os textos produzidos ao longo da IC podem revelar o desenvolvimento do aluno-pesquisador. Dentre as pesquisas já realizadas sobre a IC, observamos que elas não mostraram a relação entre o pensamento a linguagem nesse percurso formativo. Por isso, tivemos, como objetivos específicos, verificar quais as marcas textuais que nos permitem compreender essa prática científica e de formação por meio da relação entre a linguagem e o pensamento. Para tanto, partimos da teoria do Interacionismo Social (VIGOTSKI, 2001, 2007, 2009) e de estudos contemporâneos acerca da teoria vigotskiana (FRIEDRICH, 2012), sobretudo da noção de funções psicológicas superiores linguagem e pensamento e sua relação na formação dos conceitos científicos. Em seguida, baseamo-nos na corrente do Interacionismo sociodiscursivo (BRONCKART, 1999, 2006, 2008a, 2008b, 2008c, 2009, 2011), que é uma atualização contemporânea do Interacionismo social e que tem entre seus objetivos estudar o papel da linguagem no desenvolvimento humano e na construção de saberes, com base emVigotski e outros autores. Como dados de pesquisa coletamos os textos que, obrigatoriamente, os estudantes devem produzir no contexto da IC, na Faculdade de Filosofia, Letras e Ciências Humanas da Universidade de São Paulo. Assim, foram coletados projetos de pesquisa, relatórios finais, apresentações orais de pesquisa com os respectivos resumos de três estudantes do curso de Letras, na habilitação de Português/Francês. Esses dados foram analisados por meio dos níveis de análise textual e discursiva proposta por Bronckart (1999) e os resultados foram discutidos por meio dos sistemas linguageiros, assim como abordados por Bronckart (2008b) e Bota (2011), pelos quais toda produção linguageira sofre três tipos de restrições: social (incluem-se aqui os mecanismos enunciativos como as vozes e as modalizações), psicológica (restrições impostas pelo uso dos tipos de discurso) e lingüística (restrições impostas pelo uso dos conectores e da coesão verbal e nominal). Como resultado da pesquisa, encontramos uma dinâmica específica entre os tipos de discurso e o gênero textual produzido, pois, a cada etapa da pesquisa, os gêneros determinavam a escolha de determinado tipo de discurso. Também verificamos que a coesão nominal pode nos fornecer resultados importantes para a análise do posicionamento do autor empírico no texto, ou seja, a emergência de um posicionamento de pesquisador. Ademais, encontramos dois tipos de vozes no decorrer da Iniciação Científica: a voz do estudante e a voz do pesquisador. A primeira, identificada nos projetos de pesquisa, tem a função de organizar a pesquisa segundo uma ideia central advinda da experiência das estudantes enquanto graduandas em Letras, na habilitação de Português/Francês. A segunda voz, delimitada nos textos finais das pesquisas, o relatório final e a apresentação oral, é a voz do pesquisador, a qual busca a regularidade nos resultados das pesquisas e os nomeia, dando-lhes um contorno conceitual por meio de uma generalização. / This research aimed to understand the process of Scientific Initiation as an educational device in the undergraduate courses, analyzing specifically how the texts produced over the Scientific Initiation can reveal the development of student-researcher. Among the research already conducted on the Scientific Initiation, we found that they did not show the relationship between language and thought. So we had, as specific objectives, to check which textual markers allow us to understand this scientific educational practice through the relationship between language and thought. The theories that underlie our study are the Social Interactionism (VIGOTSKI, 2001, 2007, 2009) and the contemporary studies of Vigotskian theory (FRIEDRICH, 2012), especially the notion of higher mental functions \"language\" and \"thought\" and their relationship in the development of scientific concepts. We also rely on the Socio-Discursive Interactionism (BRONCKART, 1999, 2006, 2008a, 2008b, 2008c, 2009, 2011), which is a contemporary branch of social interactionism and which has among its objectives to study the role of language in human development and in the construction of knowledge, based on Vigotski and other authors. As research data,we collected texts that students must produce in the context of Scientific Initiation at the Faculty of Philosophy, Letters and Human Sciences, at the University of São Paulo. So we collected research projects, final reports and oral presentations with their abstracts of three students of Letters, students of Portuguese/French languages. These data were analyzed by levels of textual and discourse analysis proposed by Bronckart (1999) and the results were discussed through the language systems concept conceived by Bronckart (2008b) and Bota (2011), by which all language production suffers three types of constraints: social (they include the enunciative mechanisms such as voices and modalizations), psychological (restrictions imposed by use of the types of discourse) and linguistic (restrictions imposed by use of connectors and verbal and nominal cohesion). As a result of the research, we found a specific dynamic between the types of discourse and the produced genre, because in every stage of the research, the genres determined the choice of a particular type of discourse. We also found that the nominal cohesion can provide us with important results for the analysis of the empirical author positions in the text, so the emergence of a researcher position. Furthermore, we find two types of voices during the scientific initiation: the voice of the students and the voice of the researcher. The first, identified in the projects, is used toto organize the research according to a central idea arising from the experience of students in the Undergraduate courses in Letters (Portuguese/ French). The second voice, found on the final texts of the research, the final report and the oral presentation, is the voice of the researcher, which seeks regularities in search results and names them, giving them a conceptual outline through a generalization.
127

SIP Web Client : comunicações convergentes

Almeida, Carlos Guilherme Chaves e Castro dos Santos January 2008 (has links)
Estágio realizado na Novabase e orientado pelo Eng.º Pedro Faúlha / Tese de mestrado integrado. Engenharia Informátca e Computação. Faculdade de Engenharia. Universidade do Porto. 2008
128

A field- and laboratory-based investigation of shallow debris flow initiation on unburned slopes in southern California

Brady, Jordan E. 01 August 2019 (has links)
Debris flows are a known hazard in southern California where growing numbers of people are moving into the urban-wildland interface, threatening lives and property. A common location to see a debris flow head scarp is the upper one-third to one-half of an unburned slope at or near the head of a first-order catchment, particularly in areas of relatively shallow soils overlying bedrock. Unburned, relatively steep slopes with gently rounded shoulders and thin soil over bedrock in southern California were investigated to determine if there is a position on these types of slopes where near-surface water levels and the associated pore pressures are relatively and consistently higher during and after rainfall events than the rest of the slope, resulting in an area of preferential shallow slope failure and debris flow initiation. It was hypothesized that this position, if it exists, would be on the upper one-third to one-half of the slope near a change from a shallower slope to a steeper slope (the slope shoulder). It was further hypothesized that elevated subsurface pore pressures at this location would contribute to it being an area of preferential shallow slope failure. The near-surface water levels at two field sites in southern California were monitored for three field seasons. In the laboratory, a meso-scale simulator was constructed and used to replicate field conditions using an adjustable artificial slope and simulated rainfall. The field research showed that areas of higher water levels can exist on the upper one-third to one-half of hillslopes meeting the designated criteria. The laboratory simulations showed elevated water levels in the same general area as the field data. Laboratory simulations also suggested that this is an area of preferential shallow slope failure. The angle of the slope influenced how long a slope took to fail and how much water was needed to do so, with gentler slopes requiring more time and approximately double the amount of water than steeper slopes.
129

Principals' Experiences Initiating, Implementing, and Sustaining Change Within Their School

Erickson III, Lennart Theodore 01 January 2015 (has links)
Many research studies have investigated the role of the principal in implementing change. Despite the information gleaned from those investigations, principals continue to struggle with initiating, implementing, and sustaining change in their schools. Guiding this narrative inquiry study were theories related to principal leadership, educational change theory, and the theories associated with school culture, with the intent to understand the experiences of principals as they initiated, implemented, and sustained change in their schools. This study explored the challenges and successes principals experienced along with the specific actions that contributed to successful implementation. Five principals from southern Idaho were interviewed. Narratives were co-constructed based on each of the principal's experiences. Polyvocal analysis was used to analyze the data and co-construct the narratives with the participants. Common themes were examined and compared to recent research related to principals implementing change. A cross narrative analysis was used to compare the common themes and actions attributed to the successful implementation of change. Analysis of the data revealed that, among these 5 principals, successful implementation of change was created by obtaining buy-in from staff, building trust, distributing leadership, providing structured time for teachers to learn and collaborate, building capacity through targeted professional development, and seeking input from all stakeholders. These findings will promote social change by helping principals to understand the experiences of other principals with initiating, implementing, and sustaining change. Also, the common themes identified will inform principals on how to successfully implement change that will positively affect students.
130

Language usage in some traditional rituals in Northern Sotho

Mankga, Ramasela Wilhemina January 2013 (has links)
Thesis (M.A.) --University of Limpopo, 2013 / Most people feel scared and ashamed when practising their rituals and using the relevant language. The aim of this study is to be an eye opener to make people to change their behaviour and attitude. They should be free to perform their rituals with pride and dignity and regard them as valuable. Qualitative method was used to gather the information and data in this research in which interviews were conducted. Males and females were visited at their homes from villages around Mamehlabe, Ngwanallela, gaSebotse, gaMashashane and only few were quoted. Their responses were transparent in a way that it is clear that the Northern Sotho people have their own way of using language and performing rituals. It is recommended that in the performance of rituals and language usage, a full explanation is needed to accumulate practical implementation. The society at large need to be educated in order to transfer the information to the younger generation.

Page generated in 0.0752 seconds