999 resultados para 143-866
Resumo:
Objective¦Joint hypermobility (JH) and Joint Hypermobility Syndrome (JHS) are often underdiagnosed¦and were never specifically assessed in a selected population of chronic low back pain¦(LBP). This study aimed to assess JH and JHS among a population with chronic LBP using the¦Beighton and the Brigthon criteria.¦Methods¦We conducted a retrospective cross-sectional study based on a prospective data base¦among 143 patients with non-specific chronic LBP. Patients were seen by the same rheumatologist,¦who looked for JH and JHS and took their medical history. Data were analysed using logistic¦regression.¦Results¦We found a JH prevalence of 33,3% (CI 95% 22.0-44.6) among women and 21,4% (11.7-¦31.2) among men, and for JHS, of 37,9% (26.0-49.8) among women and 30,9% (19.7-42.0) among¦men. JH was less frequent among people older than fifty (P < 0.02). JHS was more prevalent among¦Swiss individuals (P < 0.01) and among individuals having a non-manual job (P<0.03) compared to¦there opposites. Patients having an important limitation for daily living activities were four times¦more likely to have JHS. Degenerative spinal disorders were negatively associated with JH (OR¦0.31 (0.13-0.73) and JHS (OR 0.31 (0.14-0.68).¦Conclusion¦A high prevalence of joint hypermobility was found in our population. JHS should be¦part of differential diagnosis in individuals with chronic non-specific LBP.
Resumo:
General Summary Although the chapters of this thesis address a variety of issues, the principal aim is common: test economic ideas in an international economic context. The intention has been to supply empirical findings using the largest suitable data sets and making use of the most appropriate empirical techniques. This thesis can roughly be divided into two parts: the first one, corresponding to the first two chapters, investigates the link between trade and the environment, the second one, the last three chapters, is related to economic geography issues. Environmental problems are omnipresent in the daily press nowadays and one of the arguments put forward is that globalisation causes severe environmental problems through the reallocation of investments and production to countries with less stringent environmental regulations. A measure of the amplitude of this undesirable effect is provided in the first part. The third and the fourth chapters explore the productivity effects of agglomeration. The computed spillover effects between different sectors indicate how cluster-formation might be productivity enhancing. The last chapter is not about how to better understand the world but how to measure it and it was just a great pleasure to work on it. "The Economist" writes every week about the impressive population and economic growth observed in China and India, and everybody agrees that the world's center of gravity has shifted. But by how much and how fast did it shift? An answer is given in the last part, which proposes a global measure for the location of world production and allows to visualize our results in Google Earth. A short summary of each of the five chapters is provided below. The first chapter, entitled "Unraveling the World-Wide Pollution-Haven Effect" investigates the relative strength of the pollution haven effect (PH, comparative advantage in dirty products due to differences in environmental regulation) and the factor endowment effect (FE, comparative advantage in dirty, capital intensive products due to differences in endowments). We compute the pollution content of imports using the IPPS coefficients (for three pollutants, namely biological oxygen demand, sulphur dioxide and toxic pollution intensity for all manufacturing sectors) provided by the World Bank and use a gravity-type framework to isolate the two above mentioned effects. Our study covers 48 countries that can be classified into 29 Southern and 19 Northern countries and uses the lead content of gasoline as proxy for environmental stringency. For North-South trade we find significant PH and FE effects going in the expected, opposite directions and being of similar magnitude. However, when looking at world trade, the effects become very small because of the high North-North trade share, where we have no a priori expectations about the signs of these effects. Therefore popular fears about the trade effects of differences in environmental regulations might by exaggerated. The second chapter is entitled "Is trade bad for the Environment? Decomposing worldwide SO2 emissions, 1990-2000". First we construct a novel and large database containing reasonable estimates of SO2 emission intensities per unit labor that vary across countries, periods and manufacturing sectors. Then we use these original data (covering 31 developed and 31 developing countries) to decompose the worldwide SO2 emissions into the three well known dynamic effects (scale, technique and composition effect). We find that the positive scale (+9,5%) and the negative technique (-12.5%) effect are the main driving forces of emission changes. Composition effects between countries and sectors are smaller, both negative and of similar magnitude (-3.5% each). Given that trade matters via the composition effects this means that trade reduces total emissions. We next construct, in a first experiment, a hypothetical world where no trade happens, i.e. each country produces its imports at home and does no longer produce its exports. The difference between the actual and this no-trade world allows us (under the omission of price effects) to compute a static first-order trade effect. The latter now increases total world emissions because it allows, on average, dirty countries to specialize in dirty products. However, this effect is smaller (3.5%) in 2000 than in 1990 (10%), in line with the negative dynamic composition effect identified in the previous exercise. We then propose a second experiment, comparing effective emissions with the maximum or minimum possible level of SO2 emissions. These hypothetical levels of emissions are obtained by reallocating labour accordingly across sectors within each country (under the country-employment and the world industry-production constraints). Using linear programming techniques, we show that emissions are reduced by 90% with respect to the worst case, but that they could still be reduced further by another 80% if emissions were to be minimized. The findings from this chapter go together with those from chapter one in the sense that trade-induced composition effect do not seem to be the main source of pollution, at least in the recent past. Going now to the economic geography part of this thesis, the third chapter, entitled "A Dynamic Model with Sectoral Agglomeration Effects" consists of a short note that derives the theoretical model estimated in the fourth chapter. The derivation is directly based on the multi-regional framework by Ciccone (2002) but extends it in order to include sectoral disaggregation and a temporal dimension. This allows us formally to write present productivity as a function of past productivity and other contemporaneous and past control variables. The fourth chapter entitled "Sectoral Agglomeration Effects in a Panel of European Regions" takes the final equation derived in chapter three to the data. We investigate the empirical link between density and labour productivity based on regional data (245 NUTS-2 regions over the period 1980-2003). Using dynamic panel techniques allows us to control for the possible endogeneity of density and for region specific effects. We find a positive long run elasticity of density with respect to labour productivity of about 13%. When using data at the sectoral level it seems that positive cross-sector and negative own-sector externalities are present in manufacturing while financial services display strong positive own-sector effects. The fifth and last chapter entitled "Is the World's Economic Center of Gravity Already in Asia?" computes the world economic, demographic and geographic center of gravity for 1975-2004 and compares them. Based on data for the largest cities in the world and using the physical concept of center of mass, we find that the world's economic center of gravity is still located in Europe, even though there is a clear shift towards Asia. To sum up, this thesis makes three main contributions. First, it provides new estimates of orders of magnitudes for the role of trade in the globalisation and environment debate. Second, it computes reliable and disaggregated elasticities for the effect of density on labour productivity in European regions. Third, it allows us, in a geometrically rigorous way, to track the path of the world's economic center of gravity.
Resumo:
Introduction: Non-operative management (NOM) of blunt splenic injuries in hemodynamically stable patients is nowadays considered the standard treatment. Material and Methods: The aim was to clarify the criteria used for primary operative management (OM) and planned NOM. Furthermore, the study aimed to identify risk factors for failure of NOM. All adult patients with blunt splenic injuries treated from 2000-2008 were reviewed and a logistic regression analysis employed. Results: There were 206 patients (146 men, 70.9%). Mean age was 38.2 ± 19.1 years. The mean Injury Severity Score (ISS) was 30.9 ± 11.6. The American Association for the Surgery of Trauma (AAST) classification of the splenic injury was: grade I, n = 43 (20.9%); grade II, n = 52 (25.2%); grade III, n = 60 (29.1%), grade IV, n = 42 (20.4%) and grade V, n = 9 (4.4%). 47 patients (22.8%) required immediate surgery (OM). More than 5 units of red cell transfusions (odds ratio [OR] 13.72, P < 0.001), a Glasgow Coma Scale < 11 (OR 9.88, P = 0.009) and age ? 55 years (OR 3.29, P = 0.038) were associated with primary OM. 159 patients (77.2%) qualified for a non-surgical approach (NOM), which was successful in 89.9% (143/159). The overall splenic salvage rate amounted to 69.4% (143/206). Multiple logistic regression analysis found age ? 40 years to be the only factor significantly and independently related to the failure of NOM (OR 13.58, P = 0.001). Conclusion: Advanced age is associated with an increased failure rate of NOM in patients with blunt splenic injuries.
Resumo:
A sample of 15 patients participating in an injectable methadone trial and of 15 patients in an oral methadone maintenance treatment, who admitted injecting part or all of their methadone take-home doses, were compared to 20 patients in maintenance treatment who use methadone exclusively by mouth. The present study confirms the poorer general health, the higher levels of emotional, psychological or psychiatric problems, the higher use of illicit drugs, and the higher number of problems related to employment and support associated with the use of the intravenous mode of administration of methadone. As expected, due to the shunt of metabolism in the gut wall and of the liver first-pass effect, higher concentration to dose ratios of (R)-methadone, which is the active enantiomer, were measured in the intravenous group (23% increase). This difference reached an almost statistically significant value (P = 0.054). This raises the question whether the effect of a higher methadone dose could be unconsciously sought by some of the intravenous methadone users.
Resumo:
BACKGROUND: In 2004, complementary and alternative medicine (CAM) was offered by physicians in one-third of Swiss hospitals. Since then, CAM health policy has changed considerably. This study aimed to describe the present supply and use of CAM in hospitals in the French-speaking part of Switzerland, and to explore qualitatively the characteristics of this offer. METHODS: Between June 2011 and March 2012, a short questionnaire was sent to the medical directors of hospitals (n = 46), asking them whether CAM was offered, where and by whom. Then, a semi-directive interview was conducted with ten CAM therapists. RESULTS: Among 37 responses (return rate 80%), 19 medical directors indicated that their hospital offered at least one CAM and 18 reported that they did not. Acupuncture was the most frequently available CAM, followed by manual therapies, osteopathy and aromatherapy. The disciplines that offered CAM most frequently were rehabilitation, gynaecology and obstetrics, palliative care, psychiatry, and anaesthetics. In eight out of ten interviews, it appeared that the procedures for introducing a CAM in the hospital were not tightly supervised by the hospital and were mainly based on the goodwill of the therapists, rather than clinical/scientific evidence. CONCLUSION: The number of hospitals offering CAM in the French-speaking part of Switzerland seemed to have risen since 2004. The selection of a CAM to be offered in a hospital should be based on the same procedure of evaluation and validation as conventional therapy, and if the safety and efficiency of the CAM is evidence-based, it should receive the same resources as a conventional therapy.
Resumo:
RÉSUMÉ : L'article a pour but d'expliquer la théorie linguistique de D. N. Ovsjaniko Kulikovskij (Russie, 1853-1920) et de proposer une nouvelle vision de la conception de ce linguiste souvent présenté comme un simple élève de A. A. Potebnja (1835-1891). L'article veut montrer comment Ovsjaniko Kulikovskij réalise son projet de créer une « linguistique scientifique » par opposition à la « philologie ». Il permet de suivre la manière dont s'est développé l'emprunt à la physique des notions d'« économie d'énergie » et de celle du « moindre effort » pour la psychologie et ensuite, la linguistique, notions qui étaient promises à un grand avenir dans la linguistique du XXe siècle.
Resumo:
O artigo traz resultados de análises de documentos de instituições de educação profissional e tecnológica com relação ao uso dos saberes profissionais na sua interação com o sistema social. Foram analisados Planos de Desenvolvimento Institucional para o período de 2009 a 2013 de cinco Institutos Federais de Educação, Ciência e Tecnologia de Minas Gerais, bem como documentos legais e do Ministério da Educação. Desejou-se saber como esses documentos definiram o uso dos saberes profissionais no atendimento de demandas específicas do sistema social. Foram priorizadas, sobretudo, demandas concretas do desenvolvimento socioeconômico local, regional e nacional; de interesses de grupos sociais e instituições; de peculiaridades regionais; de arranjos produtivos, sociais e culturais locais e as decorrentes da necessidade de preservação do meio ambiente.
Resumo:
O artigo discute a formação dos professores da Educação Profissional e Tecnológica no Brasil na perspectiva de construção de uma cultura profissional diante das alterações ocasionadas pelas políticas públicas para essa modalidade de educação no cenário mais amplo das exigências, mudanças e crise global do capitalismo. A noção de cultura tem a possibilidade heurística de enfatizar a subjetividade dos atores num coletivo centrado nas relações com o conhecimento, uma vez que os saberes partilhados, que articulam práticas sociais e identidades coletivas, possibilitam atitudes reflexivas sobre os conhecimentos mobilizados em contexto de trabalho. Para o desenvolvimento dessas ideias, o texto está organizado em quatro teses com o foco nos professores da Educação Profissional e Tecnológica: a primeira tese põe em destaque os dilemas e paradoxos vividos por esses profissionais; a segunda discute os saberes docentes na perspectiva da experiência profissional; a terceira aborda a identidade docente nesse tipo de curso como uma categoria histórica e culturalmente situada e a quarta tese discute a autonomia dos professores diante do desenvolvimento científico e tecnológico e das regulações do modelo gerencial das instituições de ensino.
Resumo:
O propósito principal deste artigo é analisar como os acadêmicos portugueses estão lidando com as novas condições de produção de conhecimento científico ligadas à emergência da sociedade/economia do conhecimento e à crescente mercantilização e "managerização" da educação superior. Os desafios profissionais instituídos por essas novas condições podem erodir a autonomia e liberdade dos acadêmicos, construídas graças ao conhecimento científico e à colegialidade. De acordo com os resultados de uma pesquisa internacional na qual se apoia a componente empírica deste artigo, a maioria dos acadêmicos ouvidos continua vinculada aos princípios humboldtianos/mertonianos de produção do conhecimento, como base de referência do profissionalismo acadêmico. Contudo, os acadêmicos assumiram, igualmente, posições híbridas em relação à categorização epistemológica da pesquisa científica, à articulação entre a pesquisa e ensino e à filiação disciplinar, departamental e institucional.
Resumo:
Este artigo resulta de pesquisa etnográfica desenvolvida em Portugal, Brasil e Canadá sobre a atividade profissional dos assistentes sociais e se centra nos aspectos relacionados ao saber que se mobiliza na interação junto às populações. A atividade profissional dos assistentes sociais responde a problemas vividos por indivíduos de forma singular, mas que decorrem do funcionamento das estruturas socioeconômicas e políticas e de seus sistemas que influenciam percursos, modos e condições de vida de pessoas, grupos e identidades individuais e coletivas. A resposta a esses problemas da ação exige um saber profissional proveniente de uma estrutura sociocognitiva específica que está na base da forma identitária que se constrói e reconstrói pela reflexão individual e coletiva e pela afirmação da autonomia profissional na ação. Os profissionais trabalham em tensão permanente, intrínseca à própria ação, para reinventar e adaptar procedimentos difíceis de codificar e formalizar no cruzamento de relações sociais complexas com lógicas individuais e coletivas diversas e mesmo antagônicas. Tensões, conflitos e limites nos contextos de interação com as populações são fatores de complexificação e de incerteza no saber. Mas, para agir nessas condições, o profissional precisa de algum padrão de regularidade e de generalidade que se constituem como procedimentos profissionais de seu saber de ação, como mostra este artigo.
Resumo:
O artigo ambiciona colocar em causa a proliferação discursiva contemporânea em torno das condutas do alunado tidas como indisciplinadas, situando-a, em diálogo com a conceituação foucaultiana, no interior de um quadro socio-histórico e institucional atravessado por demandas multiformes de governamento dos sujeitos escolares. Para tanto, o texto oferece primeiramente uma configuração preliminar da produção acadêmica brasileira sobre a temática disciplinar nas últimas três décadas, bem como problematiza os nortes teórico-metodológicos da investigação voltada ao âmbito (contra)normativo do cotidiano escolar. Em seguida, apresenta os resultados de uma investigação baseada nos registros das ocorrências disciplinares que tomaram lugar no ensino médio de uma escola pública na cidade de São Paulo, num intervalo de cinco anos (2003-2007). Por fim, opera algumas aproximações analíticas do problema, apontando que se as queixas disciplinares parecem ser, num primeiro momento, solidárias a uma espécie de esgarçadura do modus operandi escolar clássico, num segundo momento, elas passam a apontar para a irrupção de modos sutis de controle das condutas não apenas discentes, mas também dos profissionais, de modo consoante aos processos de governamentalização em ação na contemporaneidade.
Resumo:
O trabalho trata do tema da alimentação na rotina de uma instituição de atendimento à pequena infância, focalizando dados de uma pesquisa de abordagem etnográfica. Os resultados revelam que os momentos de alimentação se inscrevem em um contexto no qual o corpo aparece como protagonista de processos disciplinares, direcionados à civilização da conduta de cada indivíduo em particular, e de controle, sustentados por saberes que se apoiam no impulso pela sobrevalorização da sobrevivência biológica, deixando-a "mais sadia". Trata-se de saberes que atuam sobre a redução somática à mera naturalidade do consumo do animal laborans.