828 resultados para Nutritional Sciences - education
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This article discusses teachers’ attitudes towards immigrant students in poor settings and the effect these attitudes have on organization of education on classroom level. It draws on results from two ethnographic studies where some primary school classes in Sweden were followed with participant observation and interviews as main research methods. The article focuses on classroom activities and teachers’ attitudes towards immigrant students and students with low socio-economic status. In the article is argued for the importance of presenting students in poor settings with demanding tasks and challenging education. In these cases, intellectually undemanding tasks in combination with little room for students’ own initiatives resulted in low enthusiasm among students regarding schoolwork and accordingly low learning, while classroom work that demanded active involvement by students in combination with high level of students’ influence on what took place in classrooms resulted in high level of students’ engagement and high outcome.
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Background Young people are at an increased risk for illness in working life. The authorities stipulate certain goals for training in occupational health and safety (OHS) in vocational schools. A previous study concluded that pupils in vocational education had limited knowledge in the prevention of health risks at work. The aim of the current study, therefore, was to study how OHS training is organized in school and in workplace-based learning (WPL). Method The study design featured a qualitative approach, which included interviews with 12 headmasters, 20 teachers, and 20 supervisors at companies in which the pupils had their WPL. The study was conducted at 10 upper secondary schools, located in Central Sweden, that were graduating pupils in four vocational programs. Result The interviews with headmasters, teachers, and supervisors indicate a staggered picture of how pupils are prepared for safe work. The headmasters generally give teachers the responsibility for how goals should be reached. Teaching is very much based on risk factors that are present in the workshops and on teachers’ own experiences and knowledge. The teaching during WPL also lacks the systematic training in OHS as well as in the traditional classroom environment. Conclusion Teachers and supervisors did not plan the training in OHS in accordance with the provisions of systematic work environment management. Instead, the teachers based the training on their own experiences. Most of the supervisors did not get information from the schools as to what should be included when introducing OHS issues in WPL.
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This thesis focuses on the adaptation of formal education to people’s technology- use patterns, theirtechnology-in-practice, where the ubiquitous use of mobile technologies is central. The research question is: How can language learning practices occuring in informal learning environments be effectively integrated with formal education through the use of mobile technology? The study investigates the technical, pedagogical, social and cultural challenges involved in a design science approach. The thesis consists of four studies. The first study systematises MALL (mobile-assisted language learning) research. The second investigates Swedish and Chinese students’ attitudes towards the use of mobile technology in education. The third examines students’ use of technology in an online language course, with a specific focus on their learning practices in informal learning contexts and their understanding of how this use guides their learning. Based on the findings, a specifically designed MALL application was built and used in two courses. Study four analyses the app use in terms of students’ perceived level of self-regulation and structuration. The studies show that technology itself plays a very important role in reshaping peoples’ attitudes and that new learning methods are coconstructed in a sociotechnical system. Technology’s influence on student practices is equally strong across borders. Students’ established technologies-in-practice guide the ways they approach learning. Hence, designing effective online distance education involves three interrelated elements: technology, information, and social arrangements. This thesis contributes to mobile learning research by offering empirically and theoretically grounded insights that shift the focus from technology design to design of information systems.
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http://digitalcommons.colby.edu/atlasofmaine2005/1023/thumbnail.jpg
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Starting from the analysis of a Manifest placed in the World Wide Web in order to gather signatures, the paper discusses the arousal of a wide spread movement of scepticism in the so called Portuguese “civil socie ty” against the overall result of almost forty years of uninterrupted educational reform that has taken place in Portugal since the late sixties and has lead to an increasing percentage of illiteracy and innumeracy. That Manifest is presented as part of a broader movement, deeply rooted in the Portuguese society, and silent so far, which is becoming stronger and has now strength enough to be part of the political agenda. It is also our concern to unveil an emerging trend of blaming sciences of education and badly trained teachers as responsible for the poor outcome of our schooling system.
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Resolutions of the Board of numbers 359 and 360, of December 23, 2003, relating to Nutrition Labelling for Packaged Foods, establish quality standards and provide the education activities for health consumption, since one of the factors that enable the selection of healthier foods are the food labels as an important part in nutrition education. This is a descriptive study with a cross-sectional design. To calculate sample size, it was considered a margin of error of 20%, confidence level of 95% and prevalence of 52.5% for verifying nutritional information in a pilot study conducted in 2007. A total of 145 subjects were interviewed, resulting in 371 consumers in Natal, Rio Grande do Norte, Brazil, in order to determine prevalence of consulting nutritional information contained on food labels as a nutritional guideline for consumers and its association with sociodemographic variables as well as identify the intervention measures suggested by intervieweds so that this information can be better used to select healthy foods. Twenty-five of the 69 supermarkets belonging to the Supermarket Association of Rio Grande do Norte (ASSURN) were randomly selected. Data collection relied on interviews and extensive direct observation, using a semi-structured form composed of eight closed questions, some of which were multiple choice, and ten open questions. The chi-square test was performed for statistical analysis, using Statistical Package for Social Sciences (SPSS) 15.0 software. Label information most consulted was: expiry date (91.6%); product brand (49.4%); nutritional information (47.0%); zero trans fat (32.9%); zero sugar content (12.8%); zero fat content (3.0%); rich in fibers (2.7%); whether light or diet (30.4%); list of ingredients (16.8%); whether the product contained gluten or not (4.1%). When asked about the importance of nutritional information, 96.8% of the subjects responded important or very important ; of these 46.6% and 3.8% reported partially or totally understanding the information presented. It was found that 41.6% of the consumers consulted nutritional information for dietary reasons related to nontransmissible chronic diseases and 35.7% to be able to choose healthier foods. The data show a significant association between motivation to choose healthier foods and higher family income and schooling (p<0.0001). The intervention measures mentioned to make nutritional information better understood and used were: information and orientation about nutritional information, provided by qualified professionals in the supermarkets, the commercial establishment or the product manufacturer (73.9%) and media disclosure about the nature, importance and purpose of nutritional information (42.9%). In despite of communication noises the consumers use the nutrition claim for the nutritional guidance, showing association with some demographic variables. However, they desire the implementation of intervention measures that can be contextualized in the political construction of nutrition education to promote healthy food choices
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We studied the statistical distribution of student's performance, which is measured through their marks, in university entrance examination (Vestibular) of UNESP (Universidade Estadual Paulista) with respect to (i) period of study - day versus night period (ii) teaching conditions - private versus public school (iii) economical conditions - high versus low family income. We observed long ubiquitous power law tails in physical and biological sciences in all cases. The mean value increases with better study conditions followed by better teaching and economical conditions. In humanities, the distribution is close to normal distribution with very small tail. This indicates that these power law tails in science subjects axe due to the nature of the subjects themselves. Further and better study, teaching and economical conditions axe more important for physical and biological sciences in comparison to humanities at this level of study. We explain these statistical distributions through Gradually Truncated Power law distributions. We discuss the possible reason for this peculiar behavior.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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We studied the statistical distribution of candidate's performance which is measured through their marks in university entrance examination (Vestibular) of UNESP (Universidade Estadual Paulista) for years 1998, 1999, and 2000. All students are divided in three groups: Physical, Biological and Humanities. We paid special attention to the examination of Portuguese language which is common for all and examinations for the particular area. We observed long ubiquitous power law tails in Physical and Biological sciences. This indicate the presence of strong positive feedback in sciences. We are able to explain completely these statistical distributions through Gradually Truncated Power law distributions which we developed recently to explain statistical behavior of financial market. The statistical distribution in case of Portuguese language and humanities is close to normal distribution. We discuss the possible reason for this peculiar behavior.
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This study investigated the effect of assisted nutritional support on the outcome and time of hospitalization (TH) of dogs and cats. The study compared two groups of 400 hospitalized animals. The animals in group 1 did not receive assisted nutritional support because they were hospitalized before the clinical nutrition service was implemented; animals in group 2 were nutritionally managed. Animals in group 1 received a low-cost diet with no consumption control. Group 2 animals had their maintenance energy requirement (MER) calculated, received a high-protein and high-energy super-premium diet, had their caloric intake (CI) monitored, and received enteral and parenteral nutritional support when necessary. The statistical analysis of the results included the standard T test (group 1 versus group 2) and chisquare and Spearman's correlation to evaluate group 2 (CI and outcome, body condition score (BCS) and outcome, BCS and CI). For group 2, favorable outcome (FO), defined as the percent responding to therapy and dis-charged from the hospital, was 83%, and the TH was 8.59 days. These values were lower (P < .001) for group 1 (63.2% FO and TH of 5.7 days). For group 2, 65.5% of the animals received voluntary consumption (93.1% outcome), 14.5% received enterai support (67.9% FO), 6.5% received parenteral support (68% FO), and 6.17% did not eat (38.5% FO), demonstrating an association between the type of nutritional support and outcome (P < .01). Group 2 animals that received 0% to 33% of their MER had 62.9% FO, and those receiving more than 67% had 94.3% FO, which shows that lower mortality rates are associated with higher CI (P < .001). TH was higher for animals with higher CI (P < .001). The BCS did not correlate with Cl (P > .05) but did correlate with outcome (P < .01). FO was 68.7% for animals with low BCS, 85.7% for animals with ideal BCS, and 86.6% for overweight animals. Nutritional support could allow for longer therapies, thus increasing the TH and FO rate.
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A abordagem aos alimentos transgênicos (AT) tem adquirido grande importância na sociedade contemporânea, apresentando-se como um tema muito debatido e controverso. Esses debates ocorrem fundamentalmente nos campos ambiental, da saúde, da economia e da ética, entre outros. A presente pesquisa traz no seu âmbito os conhecimentos científicos dos alunos de um curso de Licenciatura em Ciências Biológicas, sobre AT. Sentimos a necessidade de compreender “Quais conhecimentos científicos os discentes do curso de Licenciatura em Ciências Biológicas da Universidade Federal do Pará (UFPA) mobilizam em relação aos alimentos transgênicos?” E, considerando tais conhecimentos “Como se posicionam quando solicitados à tomada de decisão?” Trata-se de estudo qualitativo, realizado no período que compreendeu maio a agosto de 2011, nas dependências do Instituto de Educação Matemática e Científica (IEMCI) da UFPA, mediante o desenvolvimento do Curso de Extensão: “Controvérsias Sociocientíficas no Ensino de Ciências”, com o tema AT. Para o levantamento dos conhecimentos dos discentes, elaboramos um questionário no qual contemplamos também uma questão que solicitava a tomada de decisão em relação ao tema em questão. Os dados relativos aos conhecimentos dos alunos foram organizados e analisados mediante a construção de “Matriz de Cognição Comparada”. Em nossa avaliação, a maioria dos sujeitos da presente pesquisa apresenta conhecimentos pertinentes a respeito do que seja transgênico. A compreensão dos discentes sobre a produção de um AT, em geral, é apresentada de forma coerente ao que encontramos na literatura da área. Observamos quanto aos aspectos positivos da produção desses alimentos, que os argumentos utilizados pelos educandos são muito parecidos com aqueles veiculados pelos proponentes dos AT na literatura específica da área. Quando indagados sobre os aspectos negativos da produção dos AT, observamos preocupações dos sujeitos quanto aos danos ao ambiente e quanto à insuficiência de resultados de estudos conclusivos, no que diz respeito aos benefícios e/ou malefícios desses alimentos. Alguns alunos expressaram preocupações no que diz respeito ao consumo de AT, notadamente dos riscos à saúde. Eles mencionam também nessa questão, a carência de estudos conclusivos em relação à questão dos possíveis maléficos do consumo dos AT. Várias foram as justificativas apontadas pelos alunos para apoio ao consumo dos AT, tais como: o combate à fome, preços mais acessíveis, maior qualidade, durabilidade, maior teor de vitaminas, melhoria na qualidade nutricional desses alimentos e benefícios econômicos. Sobre a tomada de decisão, as respostas foram divididas em favoráveis e contrárias. Para os favoráveis, as respostas foram desde aqueles que acreditam que os transgênicos podem beneficiar a população mundial no combate a fome, até os que pensam nas melhorias nutricionais desses alimentos. Em relação aos alunos que se manifestaram contrários, destacamos os que consideraram a existência de outras formas de melhorar a produção natural de alimentos, e acreditam ser muito mais benéfico para a população o incentivo desta sem o uso de agrotóxicos e pesticidas.
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Pós-graduação em Alimentos e Nutrição - FCFAR
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The objective was to evaluate the effect of nutritional density and season on the performance of young rabbit does before the first mating. Forty-eight females from the Botucatu Genetic Group were used in each season (warm or cool), starting at the age of 70 days, housed in groups of four per cage up to 119 days, and reared individually from 120 to 140 days of age. The high-density diet was formulated to contain, on a 90% DM basis, 18.4% CP, 16.5% ADF and 2,500 kcal DE kg-1; whereas the low-density diet was formulated to contain 14.7% CP, 24% ADF and 2,000 kcal DE kg-1. The experiment was conducted according to a 2x2 factorial design (two diets x two seasons) with repeated measures (weeks). The high-density diet promoted lower feed intake, higher final weight, and higher daily weight gain, adjusted for constant intake. But these facts alone do not warrant using a high-density diet for growing rabbit does, because it could have a negative impact during the reproductive phase. In the warm season, there was a reduction in feed intake and an improvement in feed efficiency. Along time, however, the mean body weight of does was similar in the two seasons.