LIME AND GYPSUM APPLICATIONS ON SOIL CHEMICAL ATTRIBUTES AND INITIAL GROWTH OF EUCALYPTUS

Eucalyptus crops in Southern Brazil are generally conducted in acidic soils, thus their yield can be increased by lime and gypsum applications. The objective of this study was to evaluate the effect of lime and gypsum applications on soil chemical attributes and initial growth of Eucalyptus benthamii and Eucalyptus dunnii in a Humic Cambisol (Inceptisol). The experiment was conducted in a greenhouse, with seedlings of both species of eucalyptus grown in soil treated with different rates of lime (0, 3, 6, and 12 Mg ha-1), and gypsum (0, 6, 3, 12.6, and 25.2 Mg ha-1). At 90 days after application of the treatments, the soil chemical attributes and growth components of eucalyptus seedlings. The lime increased the production shoot dry weight, however, the response to gypsum was negative. The lime increased the soil pH, exchangeable calcium (Ca), base saturation (V %), and slightly the soil electrical conductivity, decreased the soil aluminium saturation (m %), and promoted little reduction in the exchangeable potassium (K) and magnesium (Mg) contents. The gypsum didn't alter the soil pH, but decreased the m%, increased soil phosphorus (P) contents, and expressively increased the electrical conductivity, which may have had a negative effect on the eucalyptus growth. In conclusion, the addition of limestone decreases the soil acidity and benefits the growth of eucalyptus seedlings. However, the addition of gypsum has no expressive effects upon those variables, but it can decrease the growth of seedlings when the rates are excessive.Eucalyptus crops in Southern Brazil are generally conducted in acidic soils, thus their yield can be increased by lime and gypsum applications. The objective of this study was to evaluate the effect of lime and gypsum applications on soil chemical attributes and initial growth of Eucalyptus benthamii and Eucalyptus dunnii in a Humic Cambisol (Inceptisol). The experiment was conducted in a greenhouse, with seedlings of both species of eucalyptus grown in soil treated with different rates of lime (0, 3, 6, and 12 Mg ha-1), and gypsum (0, 6, 3, 12.6, and 25.2 Mg ha-1). At 90 days after application of the treatments, the soil chemical attributes and growth components of eucalyptus seedlings. The lime increased the production shoot dry weight, however, the response to gypsum was negative. The lime increased the soil pH, exchangeable calcium (Ca), base saturation (V %), and slightly the soil electrical conductivity, decreased the soil aluminium saturation (m %), and promoted little reduction in the exchangeable potassium (K) and magnesium (Mg) contents. The gypsum didn't alter the soil pH, but decreased the m%, increased soil phosphorus (P) contents, and expressively increased the electrical conductivity, which may have had a negative effect on the eucalyptus growth. In conclusion, the addition of limestone decreases the soil acidity and benefits the growth of eucalyptus seedlings. However, the addition of gypsum has no expressive effects upon those variables, but it can decrease the growth of seedlings when the rates are excessive

Estudo sobre a textualização: entre a produção discente e a intervenção docente

Este breve artigo tem por objetivo levantar algumas questões acerca das intervenções docentes na textualização dos alunos. Assim, analisamos as intervenções feitas por duas professoras de Português nas redações de quatro alunos, à luz das teorias de Grice (1975), Charolles (1978), Beaugrande e Dressler (1981) e Halliday e Hasan (1976). O escopo dessas análises foi a tentativa de identificar, pontualmente, as possíveis bases teóricas que pautaram as correções feitas pelas docentes. Posteriormente, consideramos o observado, refletindo quanto ao que poderia ser otimizado na interação entre a produção textual dos discentes e a correção das professoras, a fim de que tais correções fossem mais produtivas e enriquecedoras

A suplementação com óleo de peixe três vezes mais concentrado em epa (ácido eicosapentaenoico) modifica a função renal em ratos

Objetivos: Óleo de peixe, rico em ácido eicosapentaenoico (EPA), mostrou benefícios renoprotetores em modelos animais de doenças crônicas. O objetivo deste trabalho foi avaliar os efeitos da suplementação com óleo de peixe três vezes mais concentrado em EPA (EPA 3X) na função renal de ratos e a eficiência desta suplementação por um curto período de tempo.Metodologia: Ratos Wistar (n=16) foram divididos em dois grupos, controle (C) e suplementado (CO) por 14 dias com óleo de peixe (EPA 3X). Foram determinados os seguintes parâmetros: ganho de peso, ingesta de água e ração, fluxo urinário, proteinemia, trigliceridemia, osmolaridade, clearance de creatinina e fração de excreção de sódio.Resultados: Os ratos suplementados tiveram níveis de triglicerídeos no plasma 58,4% menores que os ratos controle (p=0,0239), entretanto os restantes dos parâmetros sistemicos avaliados não apresentaram alterações. A suplementação com óleo de peixe não alterou o fluxo urinário. Entretanto, no grupo CO identificou-se um aumento na filtração glomerular, com um incremento em média de 67,8% no clearance de creatinina em relação ao grupo C (p=0,054). A excreção média de proteínas totais na urina e a fração de excreção de sódio foram semelhantes entre os grupos.Conclusão: A suplementação com óleo de peixe três vezes mais concentrado em EPA por um período curto de tempo (quinze dias) provocou alterações significativas tanto em parâmetros sistêmicos (redução significativa na trigliceridemia) quanto na função renal de ratos controle (incremento na filtração glomerular) indicando a eficiência desta suplementação.

Controlled-release and stabilized fertilizers are equivalent options to split application of ammonium nitrate in a double maize-oats cropping system

The application of fertilizers as a topdressing in maize raises serious concerns because too much fertilizer is retained in the upper leaves, causing burning to the tissues. In this study, the use of a controlled-release and a stabilized fertilizer (with 3, 4-dimethylpyrazole phosphate) was compared with the application of a conventional fertilizer split into two equivalent applications in a forage maize-oats cropping system. In maize, 100 and 200 kg N ha−1 of different fertilizers were used in addition to an unfertilized control. The oat crop was not fertilized, since it served only as a winter catch crop. Maize dry matter (DM) yield increased significantly with N rate only in 2019, being the second growing season, with the control showing the lowest average value (7.1 t ha−1). The most fertilized treatments (200 kg N ha−1) gave the highest DM yields, ranging between 14.2 and 16.7 t ha−1, but with no significant differences between them. Oats had a relevant role as a catch crop recovering residual N that could have potentially been lost from the soil. Stalk nitrate concentration proved to be very sensitive to N fertilization (varying from 150.4 to 1945.6 mg kg−1 in 2018 and 494.9 to 1574.9 mg kg−1 in 2019), showing great potential as a tool of N management. These three fertilization strategies seem to be valid options that farmers can consider, after incorporating technical-economic information related to equipment suitability and the price of fertilizers.The authors are grateful to the Foundation for Science and Technology (FCT, Portugal) and European Regional Development Fund (ERDF) under Programme PT2020 for financial support to CIMO (UIDB/00690/2020).info:eu-repo/semantics/publishedVersio

Controlled-release and stabilized fertilizers are equivalent options to split application of ammonium nitrate in a double maize-oats cropping system

The application of fertilizers as a topdressing in maize raises serious concerns because too much fertilizer is retained in the upper leaves, causing burning to the tissues. In this study, the use of a controlled-release and a stabilized fertilizer (with 3, 4-dimethylpyrazole phosphate) was compared with the application of a conventional fertilizer split into two equivalent applications in a forage maize-oats cropping system. In maize, 100 and 200 kg N ha 1 of different fertilizers were used in addition to an unfertilized control. The oat crop was not fertilized, since it served only as a winter catch crop. Maize dry matter (DM) yield increased significantly with N rate only in 2019, being the second growing season, with the control showing the lowest average value (7.1 t ha 1). The most fertilized treatments (200 kg N ha 1) gave the highest DM yields, ranging between 14.2 and 16.7 t ha 1, but with no significant differences between them. Oats had a relevant role as a catch crop recovering residual N that could have potentially been lost from the soil. Stalk nitrate concentration proved to be very sensitive to N fertilization (varying from 150.4 to 1945.6mg kg 1 in 2018 and 494.9 to 1574.9mg kg 1 in 2019), showing great potential as a tool of N management. These three fertilization strategies seem to be valid options that farmers can consider, after incorporating technical-economic information related to equipment suitability and the price of fertilizers.The authors are grateful to the Foundation for Science and Technology (FCT, Portugal) and European Regional Development Fund (ERDF) under Programme PT2020 for financial support to CIMO (UIDB/00690/2020).info:eu-repo/semantics/publishedVersio

Distúrbios/dor musculoesquelética em estudantes de enfermagem de uma universidade comunitária do sul do Brasil

Goal: To describe the academic profile and assess the prevalence of musculoskeletal disorders/pain in undergraduate nursing students in a Community University in Southern Brazil. Method: It has been a descriptive quantitative study with a survey approach, and has been conducted with 149 nursing students, through the employment of an instrument with questions regarding sociodemographic variables, life, and health habits, as for Standardized Nordic Questionnaire. Results: Most participants were female, age ranging from 18 to 25, unmarried, living with the family, with no children, not receiving government support or family aid, and working for hospitals. The prevalence of musculoskeletal was in the dorsal and lumbar region and shoulders. Conclusions: The prevalence of such symptoms amongst the students leads to the need of implementing preventive and health promotion actions, in order to contribute for the improvement of life quality in both the academic scope and in the future as professionals.Objetivo: Describir el perfil académico y evaluar la prevalencia de trastornos/dolor musculoesquelético en estudiantes de graduación en Enfermería de una universidad comunitaria del sur brasileño.Método: Estudio descriptivo, cuantitativo, del tipo encuesta, con 149 estudiantes de enfermería a través del instrumento compuesto por preguntas referentes a las variables sociodemográficas, hábitos de vida y salud, así como por la versión brasileña Standardized Nordic Questionnaire.Resultados: La mayoría era del sexo femenino, con 18 y 25 años de edad, soltera, vive con la familia, no tiene hijos, no recibe beca o ayuda de la familia y trabaja en hospitales. Prevalencia de síntomas musculoesqueléticos en la región dorsal y baja de la espalda y hombros.Conclusiones: La prevalencia de estos síntomas entre los estudiantes señala la necesidad de implementar acciones preventivas y de promoción de la salud para contribuir a una mejor calidad de vida y salud, en el ámbito académico y en el futuro como profesionales.Objetivo: Descrever o perfil acadêmico e avaliar prevalência de distúrbios/dor musculoesquelética em estudantes do curso de graduação em Enfermagem de uma universidade comunitária do Sul do Brasil.Método: Estudo descritivo de natureza quantitativa do tipo survey, realizado com 149 estudantes de enfermagem, por meio da aplicação do instrumento composto por questões referentes às variáveis sociodemográficas, hábitos de vida e saúde, como pela versão brasileira Standardized Nordic Questionnaire.Resultados: A maioria dos participantes é do sexo feminino, com idade de 18 e 25 anos, sem companheiro, residem com a família, não possuem filhos, não recebem bolsa ou ajuda familiar e trabalham em hospitais. A prevalência de sintomas musculoesqueléticos foi na região dorsal e lombar e ombros.Conclusões: A prevalência desses sintomas entre os estudantes aponta necessidade de implementar ações preventivas e de promoção da saúde, a fim de contribuir para melhor qualidade de vida e saúde tanto no âmbito acadêmico quanto futuramente como profissionais

O TRABALHO DA EQUIPE MULTIDISCIPLINAR NA MELHORIA DA QUALIDADE DE VIDA DE PACIENTES EM ESTÁGIO TERMINAL COM FOCO NOS CUIDADOS PALIATIVOS

Multidisciplinarity in the context of palliative care involves more than the doctor in the center of attention and care. This article objectified to contemplate several aspects related to care for terminally ill patients, focusing on interdisciplinary work. In addition to promoting a reflection to health professionals about the decision making in an integrated and effective way in teamwork. This is a retrospective study, carried out based on bibliographical research in the Portal of CAPES Journals. Initially, fourteen studies were analyzed, excluding those that did not emphasize the theme of multidisciplinary integration among health professionals, thus, five articles and a dissertation were used. According to the studies, it has been observed that palliatism is a science that has been conceptualized recently and does not pretend to cure, but that seeks to provide comfort and mitigate the symptoms of the patient and the suffering of their relatives. In addition, the importance of the care team assists in making effective decisions, although in the surveys it was verified that there is no commitment to full functioning and that there is a need for technological advances in the area and specific training for professionals. Dialogue and cooperation among all involved is very important to achieve the goals that are intended when thinking about palliative care. It is very important that there is more investments, professional training and more focused studies in the practice of the doctor, because the few studies that exist, focus on the nurse's attention and care.Multidisciplinariedade no contexto dos cuidados paliativos envolve mais do que o médico no centro da atenção e do cuidado. Este artigo buscou contemplar vários aspectos relacionados ao cuidado aos doentes terminais, focalizando no trabalho interdisciplinar. Além de promover uma reflexão aos profissionais de saúde acerca da tomada de decisões de forma integrada e efetiva no trabalho em equipe. Trata-se de um estudo retrospectivo, realizado a partir de pesquisas bibliográficas no Portal de Periódicos CAPES. Inicialmente, foram analisados quatorze trabalhos, sendo excluídos aqueles que não enfatizaram a temática da integração multidisciplinar entre os profissionais da saúde, assim, utilizou-se cinco artigos e uma dissertação de mestrado. De acordo com os estudos, observou-se que o paliativismo é uma ciência conceituada há pouco que não possui a pretensão de curar, mas, que busca proporcionar conforto e mitigar os sintomas do doente e o sofrimento de seus familiares. Além disso, a importância da equipe de cuidados auxilia na tomada de decisões adequadas, embora nas pesquisas foi verificada que não há o engajamento para o pleno funcionamento e que há a necessidade de avanços tecnológicos na área e de treinamento específico para os profissionais. O diálogo e cooperação entre todos os envolvidos se faz deveras importante para se alcançar os objetivos que se pretende quando se pensa em cuidado paliativo. Há de se ter ciência de que precisam mais investimentos, capacitação profissional e estudos mais focados na atuação do médico, pois os poucos ensaios que tem, focam na atuação do enfermeiro na atenção e no cuidado. &nbsp