Objective: To compare stress levels in freshman and senior nursing students. Method: A cross-sectional study was carried out in a public federal university of the state of Bahia, with students who answered questionnaires about sociodemographic variables, academic life, and a scale for assessing stress in nursing students. Chi-square and Fisher’s exact tests were applied to analyze the relationship between variables. To assess proportional trends between ordinal variables and groups, a chi-square test for linear trend was applied. The significance level was 5%. Results: One hundred and fifty-four students participated in the study. There was a tendency to higher stress levels among students in the last year compared to those in the first year, in four out of six domains: Performance of Practical Activities (p=0.00), Professional Communication (p=0.00), Environment (p=0.00) and Professional Education (p=0.00). Conclusion: High levels of stress were observed in students taking the last year. There is a need for broader research that includes other years of the course, an institutional reflection on stress factors and the adoption of an institutional policy that favors a better confrontation of stress factors.

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Neste trabalho foi desenvolvido e caracterizado filmes biodegradáveis à base de amido de feijão macáçar, plastificado com glicerol e com a mistura glicerol e ácido acético glacial (HAc). Os filmes foram obtidos por casting empregando amido de feijão macáçar (3 g/100 g de solução filmogênica) e diferentes concentrações do plastificante glicerol (20 e 30 g/100 g de amido) e da mistura glicerol e ácido acético glacial, nas proporções de 20 g e 10 g/100 g de amido, respectivamente. Os filmes apresentaram boas continuidade, uniformidade, manuseabilidade, transparência e, ainda, ausência de bolhas e rachaduras na superfície. O aumento da quantidade de solução filmogênica nas formulações, de 0,23 para 0,46 g/cm2, afetou positivamente a espessura, a gramatura e a densidade, mas não alterou a umidade e transparência dos filmes. O carácter hidrofílico dos filmes cresceu com aumento da quantidade de plastificante.

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