859 resultados para Research design
Resumo:
OBJECTIVE - We examined the associations of physical activity with fasting plasma glucose (FPG) and with 2-h postload plasma glucose (2-h PG) in men and women with low, moderate, and high waist circumference. RESEARCH DESIGN AND METHODS - The Australian Diabetes, Obesity and Lifestyle (AusDiab) study provided data on a population-based cross-sectional sample of 4,108 men and 5,106 women aged >= 25 years without known diabetes or health conditions that could affect physical activity. FPG and 2-h PG were obtained from an oral glucose tolerance test. Self-reported physical activity level was defined according to the current public health guidelines as active (>= 150 min/week across five or more sessions) or inactive (< 150 min/week and/or less than five sessions). Sex-specific quintiles of physical activity time were used to ascertain dose response. RESULTS - Being physically active and total physical activity time were independently and negatively associated with 2-h PG. When physical activity level was considered within each waist circumference category, 2-h PG was significantly lower in active high-waist circumference women (beta-0.30 [95% CI -0.59 to -0.01], P = 0.044) and active low-waist circumference men(beta-0.25 [-0.49 to -0.02],P = 0.036) compared with their inactive counterparts. Considered across physical activity and waist circumference categories, 2-h PG levels were not significantly different between active moderate-waist circumference participants and active low-waist circumference participants. Associations between physical activity and FPG were nonsignificant. CONCLUSIONS - There are important differences between 2-h PG and FPG related to physical activity. It appears that 2-h PG is more sensitive to the beneficial effects of physical activity, and these benefits occur across the waist circumference spectrum.
Resumo:
Primary objective: To trial the method of email-facilitated qualitative interviewing with people with traumatic brain injury (TBI). Research design: Qualitative semi-structured email-facilitated interviews. Procedures: Nineteen people (17 severe diagnosis) with a TBI participated in email interviews. Main outcomes and results: Findings indicate that this method facilitates the participation of people with TBI in qualitative interviews. Advantages include increased time for reflection, composing answers and greater control of the interview setting. In addition, the data indicates that people with a TBI are capable of greater insight, reflection and humour than indicated by previous research. Conclusion: Findings indicate that new technologies may advance data collection methods for people with cognitive-linguistic impairments who face participation barriers in face-to-face interviews.
Resumo:
OBJECTIVE - The purpose of this study was to determine whether beneficial effects on glycemic control of an initial laboratory-supervised resistance training program could be sustained through a community center-based maintenance program. RESEARCH DESIGN AND METHODS - We studied 57 overweight (BMI >= 27 kg/m(2)) sedentary men and women aged 40-80 years with established (> 6 months) type 2 diabetes. initially, all participants attended a twice-weekly 2-month supervised resistance training program conducted in the exercise laboratory. Thereafter, participants undertook a resistance training maintenance program (2 times/week) for 12 months and were randomly assigned to carry this out either in a community fitness and recreation center (center) or in their domestic environment (home). Glycemic control (HbA(1c) [A1C]) was assessed at 0, 2, and 14 months. RESULTS - Pooling data from the two groups for the 2-month supervised resistance training program showed that compared with baseline, mean A1C fell by -0.4% [95% CI -0.6 to -0.2]. Within-group comparisons showed that A I C remained lower than baseline values at 14 months in the center group (- 0.4% [-0.7 to -0.03]) but not in the home group (-0.1% [-0.4 to 0.3]). However, no between-group differences were observed at each time point. Changes in AIC during the maintenance period were positively associated with exercise adherence in the center group only. CONCLUSIONS - Center-based but not home-based resistance training was associated with the maintenance of modestly improved glycemic control from baseline, which was proportional to program adherence. Our findings emphasize the need to develop and test behavioral methods to promote healthy lifestyles including increased physical activity in adults with type 2 diabetes.
Resumo:
Purpose. This article explores the experiences of 26 assistive technology (AT) users having a range of physical impairments as they optimized their use of technology in the workplace. Method. A qualitative research design was employed using in-depth, open-ended interviews and observations of AT users in the workplace. Results. Participants identified many factors that limited their use of technology such as discomfort and pain, limited knowledge of the technology's features, and the complexity of the technology. The amount of time required for training, limited work time available for mastery, cost of training and limitations of the training provided, resulted in an over-reliance on trial and error and informal support networks and a sense of isolation. AT users enhanced their use of technology by addressing the ergonomics of the workstation and customizing the technology to address individual needs and strategies. Other key strategies included tailored training and learning support as well as opportunities to practice using the technology and explore its features away from work demands. Conclusions. This research identified structures important for effective AT use in the workplace which need to be put in place to ensure that AT users are able to master and optimize their use of technology.
Resumo:
Historicamente tido como nacional, o meio revista está sendo regionalmente reinventado. Seus moldes tradicionais passam por uma readaptação e os esquematismos dominantes na produção jornalística já não são homogêneos. Há um movimento setorial à procura de um novo mercado, incrustado nas especificidades regionais e no desenvolvimento socioeconômico que está vicejando num cotidiano desconhecido pela chamada grande imprensa. O mercado de revistas no Brasil cresce consecutivamente e de forma organizada há anos. Embora não haja registros nas fontes de autoridade, as revistas regionais e as tiragens têm se multiplicado velozmente, contrariando os revezes econômico-financeiros sentidos por outros setores da indústria cultural. Este fenômeno é o objetivo desta pesquisa: mapear a nova geografia do meio revista nas cinco macrorregiões brasileiras para entender como as identidades regionais são processadas em favor da comunicação com públicos específicos, característica que está na essência da revista. Métodos mistos de pesquisa qualitativa e quantitativa traçam o caminho da justaposição necessária para descrever este surto de publicações regionais. Estudo de casos múltiplos e análise de conteúdo envolvendo cinco revistas de cada uma das regiões políticoadministrativas, descrevem e discutem as tendências da segmentação no mercado editorial além do eixo Rio-São Paulo. Como resultado desta investigação, chega-se às seguintes conclusões: a consolidação de um novo campo jornalístico regional, profissionalizado, competente e criativo, distante do amadorismo, do bairrismo e da mimetização simplista; os mais expressivos veículos de cada uma das cinco macro-regiões infra-nacionais, segundo o construto metodológico criado para esta pesquisa, trabalham as relações, modos e demandas de produção simbólica sem artificialismos; as identidades regionais instituídas estão intimamente ligadas às regiões de influência e as redes urbanas; o retrato do estilo de vida urbano estampado nas revistas do corpus reforça tanto o poder desta como veículo de comunicação, como retroalimenta os sotaques regionais nos níveis sociais onde são produzidas e digeridas.(AU)
Resumo:
O presente estudo buscou a compreensão dos motivos que levam as empresas pesquisadas do setor automobilístico a gerir o conhecimento tácito, mediados pela gestão do conhecimento, na área de gestão de desenvolvimento de produtos. As questões de pesquisa que este estudo objetivou responder foram: Como empresas estudadas utilizam o conhecimento tácito para se tornarem mais eficientes e eficazes nas atividades/ operações? De que forma o conhecimento tácito é percebido na organização por parte dos funcionários e gestores? Para responder a estas perguntas houve a investigação de duas empresas do setor automobilístico, na área de desenvolvimento de produtos. Como base teórica para o desenvolvimento do presente estudo autores como Davenport e Prusak (1998), Nonaka e Takeuchi (1997) e Choo (2006) orientam esta pesquisa. A pesquisa abrange duas empresas do ramo automobilístico na região do ABC Paulista, com equivalência no número de funcionários e porte. Dentre os entrevistados há funcionários e gestores de áreas de gestão de projetos e produtos. A metodologia aplicada ao estudo foi de caráter qualitativo por meio de pesquisa exploratória-descritiva, sendo que o método de coleta de dados se deu a partir de entrevistas semiestruturadas. O estudo investigou quais as práticas usadas para a conversão do conhecimento, fatores facilitadores e fatores dificultadores para a conversão do conhecimento e as principais contribuições da aplicação das práticas e iniciativas voltadas gerir o conhecimento tácito, sob a ótica dos gestores e funcionários. Através do presente estudo pode-se verificar que existe a preocupação com a gestão do conhecimento nas empresas estudadas e que há práticas diversas relativas ao conhecimento tácito e que as formas de disseminação deste conhecimento são distintas. Algumas das práticas são os cursos de especialização, brainstorming e lesson learned e conversas informais. Nos fatores facilitadores há a troca de informação entre os pares, reuniões semanais, equipes multidisciplinares/ multifuncionais. Nos fatores dificultadores há a indicação de questões comportamentais, acúmulo de funções e tempo para partilhar informações.
Resumo:
Este estudo teve como objetivo principal analisar a relação entre a Liderança Transformacional, a Conversão do Conhecimento e a Eficácia Organizacional. Foram considerados como pressupostos teóricos conceitos consolidados sobre os temas desta relação, além de recentes pesquisas já realizadas em outros países e contextos organizacionais. Com base nisto identificou-se potencial estudo de um modelo que relacionasse estes três conceitos. Para tal considera-se que as organizações que buscam atingir Vantagem Competitiva e incorporam a Knowledge-Based View possam conquistar diferenciação frente a seus concorrentes. Nesse contexto o conhecimento ganha maior destaque e papel protagonista nestas organizações. Dessa forma criar conhecimento através de seus colaboradores, passa a ser um dos desafios dessas organizações ao passo que sugere melhoria de seus indicadores Econômicos, Sociais, Sistêmicos e Políticos, o que se define por Eficácia Organizacional. Portanto os modos de conversão do conhecimento nas organizações, demonstram relevância, uma vez que se cria e se converte conhecimentos através da interação entre o conhecimento existente de seus colaboradores. Essa conversão do conhecimento ou modelo SECI possui quatro modos que são a Socialização, Externalização, Combinação e Internalização. Nessa perspectiva a liderança nas organizações apresenta-se como um elemento capaz de influenciar seus colaboradores, propiciando maior dinâmica ao modelo SECI de conversão do conhecimento. Se identifica então na liderança do tipo Transformacional, características que possam influenciar colaboradores e entende-se que esta relação entre a Liderança Transformacional e a Conversão do Conhecimento possa ter influência positiva nos indicadores da Eficácia Organizacional. Dessa forma esta pesquisa buscou analisar um modelo que explorasse essa relação entre a liderança do tipo Transformacional, a Conversão do Conhecimento (SECI) e a Eficácia Organizacional. Esta pesquisa teve o caráter quantitativo com coleta de dados através do método survey, obtendo um total de 230 respondentes válidos de diferentes organizações. O instrumento de coleta de dados foi composto por afirmativas relativas ao modelo de relação pesquisado com um total de 44 itens. O perfil de respondentes concentrou-se entre 30 e 39 anos de idade, com a predominância de organizações privadas e de departamentos de TI/Telecom, Docência e Recursos Humanos respectivamente. O tratamento dos dados foi através da Análise Fatorial Exploratória e Modelagem de Equações Estruturais via Partial Least Square Path Modeling (PLS-PM). Como resultado da análise desta pesquisa, as hipóteses puderam ser confirmadas, concluindo que a Liderança Transformacional apresenta influência positiva nos modos de Conversão do Conhecimento e que; a Conversão do Conhecimento influencia positivamente na Eficácia Organizacional. Ainda, concluiu-se que a percepção entre os respondentes não apresenta resultado diferente sobre o modelo desta pesquisa entre quem possui ou não função de liderança.
Resumo:
The current paper examines the dissimilarities that have occurred in news framing by state-sponsored news outlets in their different language versions. The comparative framing analysis is conducted on the news coverage of the Russian intervention in Syria (2016) in RT and Radio Liberty in Russian and English languages. The certain discrepancies in framing of this event are found in both news outlets. The strongest distinction between Russian and English versions occurred in framing of responsibility and humanitarian crisis in Syria. The study attempts to explain the identified differences in a framework of public diplomacy and propaganda studies. The existing theories explain that political ideology and foreign policy orientation influences principles of state propaganda and state-sponsored international broadcasting. However, the current findings suggest that other influence factors may exist in the field – such as the local news discourse and the journalistic principles. This conclusion is preliminary, as there are not many studies with the comparable research design, which could support the current discussion. The studies of localized strategies of the international media (whether private networks or state-funded channels) can refine the current conclusions and bring a new perspective to global media studies.
Resumo:
The research agenda for the field of international human resource management (IHRM) is clear. For a better understanding and to benefit substantially, management scholars must study IHRM in context (Jackson, S.E. and Schuler, R.S. 1995. Understanding human resource management in the context of organizations and their environment. Annual Review of Psychology, 46: 237–264; Geringer, J.M., Frayne, C.A. and Milliman, J.F. 2002. In search of 'best practices' in international human resource management: research design and methodology. Human Resource Management, forthcoming). IHRM should be studied within the context of changing economic and business conditions. The dynamics of both the local/regional and international/global business context in which the firm operates should be given serious consideration. Further, it could be beneficial to study IHRM within the context of the industry and the firm's strategy and its other functional areas and operations. In taking these perspectives, one needs to use multiple levels of analysis when studying IHRM: the external social, political, cultural and economic environment; the industry, the firm, the sub-unit, the group, and the individual. Research in contextual isolation is misleading: it fails to advance understanding in any significant way (Adler, N.J. and Ghadar, E. 1990. Strategic human resource management: a global perspective. Human Resource Management in International Comparison. Berlin: de Gruyter; Locke, R. and Thelen, K. 1995. Apples and oranges revisited: contextualized comparisons and the study of comparative labor politics. Politics & Society, 23, 337–367). In this paper, we attempt to review the existing state of academic work in IHRM and illustrate how it incorporates the content and how it might be expanded to do so.
Resumo:
Recently, Drǎgulescu and Yakovenko proposed an analytical formula for computing the probability density function of stock log returns, based on the Heston model, which they tested empirically. Their research design inadvertently favourably biased the fit of the data to the Heston model, thus overstating their empirical results. Furthermore, Drǎgulescu and Yakovenko did not perform any goodness-of-fit statistical tests. This study employs a research design that facilitates statistical tests of the goodness-of-fit of the Heston model to empirical returns. Robustness checks are also performed. In brief, the Heston model outperformed the Gaussian model only at high frequencies and even so does not provide a statistically acceptable fit to the data. The Gaussian model performed (marginally) better at medium and low frequencies, at which points the extra parameters of the Heston model have adverse impacts on the test statistics. © 2005 Taylor & Francis Group Ltd.
Resumo:
Purpose – The purpose of this paper is to challenge the assumption that process losses of individuals working in teams are unavoidable. The paper aims to challenge this assumption on the basis of social identity theory and recent research. Design/methodology/approach – The approach adopted in this paper is to review the mainstream literature providing strong evidence for motivation problems of individuals working in groups. Based on more recent literature, innovative ways to overcome these problems are discussed. Findings – A social identity-based analysis and recent findings summarized in this paper show that social loafing can be overcome and that even motivation gains in group work can be expected when groups are important for the individual group members' self-concepts. Practical implications – The paper provides human resource professionals and front-line managers with suggestions as to how individual motivation and performance might be increased when working in teams. Originality/value – The paper contributes to the literature by challenging the existing approach to reducing social loafing, i.e. individualizing workers as much as possible, and proposes a team-based approach instead to overcome motivation problems.
Resumo:
The aim of this work is to use systematic review methodology to answer the question “What are the current barriers to kerbside recycling of household waste in the UK?” A systematic search of electronic databases and journals was undertaken to identify academic published work. A critical scoping review of research published between 2000 – 2008 profiles theory and research design. The systematic review identified twelve relevant papers, of which seven contain original data. To define the current barriers the explanations of barriers were systematically aggregated into four main categories: household / individual behaviour; services / local situation; attitudes / motivation; information and knowledge. The purpose of the work is to inform future marketing campaigns which will assist the UK to reach the statutory targets of waste diversion. The synthesis will be useful to environmental professionals working in waste authorities and researchers and students. The framework offers an opportunity to develop better marketing and communications strategies to help more people recycle more things more often and will inform future recycling policy development.
Resumo:
The two areas of theory upon which this research was based were „strategy development process?(SDP) and „complex adaptive systems? (CAS), as part of complexity theory, focused on human social organisations. The literature reviewed showed that there is a paucity of empirical work and theory in the overlap of the two areas, providing an opportunity for contributions to knowledge in each area of theory, and for practitioners. An inductive approach was adopted for this research, in an effort to discover new insights to the focus area of study. It was undertaken from within an interpretivist paradigm, and based on a novel conceptual framework. The organisationally intimate nature of the research topic, and the researcher?s circumstances required a research design that was both in-depth and long term. The result was a single, exploratory, case study, which included use of data from 44 in-depth, semi-structured interviews, from 36 people, involving all the top management team members and significant other staff members; observations, rumour and grapevine (ORG) data; and archive data, over a 5½ year period (2005 – 2010). Findings confirm the validity of the conceptual framework, and that complex adaptive systems theory has potential to extend strategy development process theory. It has shown how and why the strategy process developed in the case study organisation by providing deeper insights to the behaviour of the people, their backgrounds, and interactions. Broad predictions of the „latent strategy development? process and some elements of the strategy content are also possible. Based on this research, it is possible to extend the utility of the SDP model by including peoples? behavioural characteristics within the organisation, via complex adaptive systems theory. Further research is recommended to test limits of the application of the conceptual framework and improve its efficacy with more organisations across a variety of sectors.
Resumo:
This thesis begins by examining the concepts of civil society and social capital. Specifically, it outlines the role of health and education third sector organisations (TSOs) in building civil society and generating social capital which is conducive to democratisation. Following this, the thesis presents literature on civil society development in the context of the Russian Federation, highlighting a void in our understanding of health and education TSOs in this context. The literature review examines cultural-historic antecedents and their impact on civil society development. These antecedents result in three constraints which limit TSOs ability to establish civil society as an autonomous space. In light of these constraints, the thesis explores the present day realities faced by Russian TSOs and proposes that the all-dominant nature of the Russian state leads to managed civil society arrangements. Consequently the thesis addresses the question of how a managed civil society manifests itself in the context of the Russian Federation. Using a qualitative research design, the thesis investigates the control mechanisms created by legislative framework, the ability of third sector organisations to substitute for the state, and the organisational characteristics of TSOs within a managed civil society space. Based on interview data from 82 TSOs across three geographical regions, the empirical chapters explore these three aspects in-depth. Firstly, the thesis demonstrates how a specific legislative framework is used as a legally mandated method to manage civil society. Secondly, the thesis explores more subtle attempts by the state to manage civil society. And thirdly, the thesis highlights ways in which the state controls TSOs and coerces them to mimic marionette organisations. Overall, the evidence presented throughout the thesis highlights the idiosyncratic nature of managed civil society arrangements in Russia in which the state is able to control and direct civil society