ABSTRACT
ABSTRACT The dispersion of Diceraeus melacanthus (Dallas) from soybean (first crop season) to maize (second crop season) is facilitated by the presence of weeds (e.g. Commelina benghalensis) and soybean grains on the ground. Understanding insect development and behavior on different food sources is important to develop pest management strategies. Thus, three independent experiments were conducted to study D. melacanthus nymph development, and adult preference for feeding and oviposition in different food source scenarios in the field. The first two trials studied development and food preference of D. melacanthus related to different food sources (C. benghalensis branches, moistened soybean grain + soybean seedlings, maize seedlings + C. benghalensis branches, moistened soybean grains + maize seedlings, moistened soybean grains + C. benghalensis branches, maize seedlings, as well as a standard diet). The third trial evaluated D. melacanthus oviposition preferences between the aforementioned plants. Overall, moistened soybean grains resulted in better nutritional quality, thus being crucial for D. melacanthus development, triggering faster nymph development as well as better overall adult fitness. The combination of soybean grains and maize seedlings or C. benghalensis branches showed great potential to benefit D. melacanthus, since these complementary food sources improved stink bug fitness, increasing mainly adult longevity, fecundity and egg viability. Therefore, it can be concluded that in order to reduce D. melacanthus outbreaks in second season maize, it is important to reduce soybean harvest loss (reducing, therefore, moistened soybean grain on the ground) and eliminate stink bug associated plants like C. benghalensis.
ABSTRACT
Objetivo: analisar o sofrimento psíquico entre universitários de enfermagem no contexto da vida acadêmica. Método: pesquisa descritiva, de abordagem qualitativa, realizada com 20 universitários do último semestre de enfermagem, de uma universidade pública no Nordeste, Brasil. Os dados foram produzidos por perguntas abertas, entre março de 2016 a fevereiro de 2017, e avaliados pela análise de conteúdo. Resultados: os motivos de sofrimento psíquico foram as dificuldades de adaptação dos universitários no início do curso, conflitos durante a formação e expectativas quanto ao término da graduação. Diante disso, as consequências identificadas foram dificuldades alimentares, estresse e sintomas de depressão. Os modos de viver dos universitários são influenciados pelas vivências acadêmicas, inclusive os hábitos alimentares, excesso de trabalho e falta de lazer. Eles podem ser precursores de problemas graves de saúde, como ideação suicida. Conclusão: sugere-se ampliar estratégias de prevenção e manejo clínico na universidade articulado aos serviços de saúde mental.
Objective: to analyze the psychic suffering among nursing students in the context of academic life. Method: descriptive research, with a qualitative approach, carried out with 20 university students from the last semester of nursing, from a public university in the Northeast, Brazil. The data were produced by open-ended questions, between March 2016 and February 2017, and evaluated by content analysis. Results: the reasons for psychological suffering were the difficulties of adapting the university students at the beginning of the course, conflicts during training and expectations regarding the end of graduation. Given this, the consequences identified were dietary difficulties, stress and symptoms of depression. The way of life of university students is influenced by academic experiences, including eating habits, overwork and lack of leisure. They can be precursors of serious health problems, such as suicidal ideation. Conclusion: it is suggested to expand prevention and clinical management strategies at the university linked to mental health services.
Objetivo: analizar el sufrimiento psicológico en estudiantes de enfermería en el contexto de la vida académica. Método: investigación descriptiva, con enfoque cualitativo, realizada con 20 estudiantes universitarios del último semestre de enfermería, de una universidad pública del Noreste, Brasil. Los datos se elaboraron mediante preguntas abiertas, entre marzo de 2016 y febrero de 2017, y se evaluaron mediante análisis de contenido. Resultados: los motivos del sufrimiento psicológico fueron las dificultades de adaptación de los universitarios al inicio del curso, los conflictos durante la formación y las expectativas sobre el final de la graduación. Ante esto, las consecuencias identificadas fueron dificultades dietéticas, estrés y síntomas de depresión. La forma de vida de los estudiantes universitarios está influenciada por las experiencias académicas, incluidos los hábitos alimentarios, el exceso de trabajo y la falta de ocio. Pueden ser precursores de problemas de salud graves, como la ideación suicida. Conclusión: se sugiere ampliar las estrategias de prevención y manejo clínico en la universidad vinculadas a los servicios de salud mental.