Tratamento de sementes com micronutrientes na cultura do milho (Zea Mays l.)

O objetivo foi avaliar o efeito do tratamento de sementes de milho (Zea mays) com nutrientes, no crescimento inicial de plantas em condições controladas (casa de vegetação) de acordo com protocolo comercial. Utilizou-se o delineamento experimental inteiramente casualizado, com 10 tratamentos e 5 repetições, sendo 9 tratamentos com produtos comerciais de diferentes composições e um tratamento padrão (testemunha). Aos 30 dias após a emergência realizou-se as avaliações de altura de plantas, diâmetro de caule, número de folhas, comprimento de raiz, massa seca (MS) da parte aérea e da raiz. Concluiu-se que, embora não sejam estatisticamente diferentes da testemunha, o tratamento de sementes de milho com produtos formulados promove acréscimo no comprimento de plantas de milho e incremento no alongamento e massa seca de raiz, aos trinta dias após a emergência

Um olhar da escrita desenvolvida pelas crianças no ensino fundamental

The act of writing is extremely important for the construction of meaningful literacy. This article aims to contextualize historically the development of writing, in addition to exposing pedagogical practices carried out in a class of elementary school. The study carried out is bibliographic and field work, because several articles were used that contributed to the production of the historical context of writing, the field research took place in the observations made in the chosen class, besides a production made by the students that had as its theme the dream that each one has. It was possible to analyze the way students express themselves, seeking more playful work alternatives.O ato de escrever é extremamente importante para a construção de uma alfabetização significativa. Este artigo tem como objetivo contextualizar historicamente o desenvolvimento da escrita, além de expor práticas pedagógicas realizadas em uma turma do Ensino Fundamental. O estudo realizado é de cunho bibliográfico e de campo, pois foram utilizados diversos artigos que contribuíram para a produção do contexto histórico da escrita, a pesquisa de campo se deu nas observações realizadas na turma escolhida, além de uma produção feita pelos estudantes que tinha como tema o sonho que cada um possui. Foi possível analisar a forma que alunos se expressam, buscando alternativas de trabalho mais lúdicas

Correlation between Bipolar Affective Disorder and Suicide Reviewing by the Risk Factors: a Systematic Review

Background: Because there are several reports associations between affective (AD) and bipolar disorder (BD) and suicide, the research develops a discussion of risk factors that inflence the occurrence of suicide attempts in patients with BD.Objectives: To relate risk factors present in patients with bipolar disorder who committed suicide or some suicide attempt.Methods: A survey was made in Scopus with the keyword "bipolar" and the terms "suicide" and "attempted"and "risk factors" from Medical Subject Headings (MeSH). We use only Scopus as the data source, and the statistical information available in tables and graphs provided from this source.Results: Frequently the AD and BD were associated with suicide occurrence in the studies included in this review. They identifid the main risk factors for suicide the previous suicide attempt and hopelessness. The main risk factors for nonfatal suicidal behavior included family history of suicide, early onset of bipolar disorder, extent of depressive symptoms, increasing severity of affective episodes, the presence of mixed affective states, rapid cycling, comorbid Axis I disorders, and abuse of alcohol or drugs. The suicide rate in this disorder reaches three times compared with other mental illnesses, and there are several risk factors: 3:1 ratio of suicide in men compared to women, but in females a greater number of attempts are observed. 25% of persons consume alcohol prior to suicidal attempt. The studies relate these factors and show how they can pose a risk to the carrier of the disorder. There are other risk factor for BD discussed on this review.Conclusions: It is inferred that the factors related to the risk of suicide in patients with bipolar disorder are important to enable the development of strategies designed to identify a possible suicidal ideation, prevention and control of these deaths. These elements are well characterized and defied in the studies

Increasing the photocatalytic and fungicide activities of Ag3PO4 microcrystals under visible-light irradiation

The present study reports for the first time the performance of silver phosphate (Ag3PO4) microcrystals as photocatalyst (degradation of Rodamine B-RhB) and antifungal agent (against Candida albicans–C. albicans) under visible-light irradiation (455 nm). Ag3PO4 microcrystals were synthesized by a simple co-precipitation (CP) method at room temperature. The structural and electronic properties of the as-synthetized Ag3PO4 have been investigated before and after 4 cycles of RhB degradation under visible light using X-ray diffraction (XRD), micro-Raman spectroscopy, UV–Vis spectrophotometer and field emission scanning electron microscopy (FE-SEM) images. The antifungal activity was analyzed in planktonic cells and 48h-biofilm of C. albicans by colony forming units (CFU) counting, confocal laser and FE-SE microscopies. Statistical analysis was carried out using SPSS software. Morphological and structural modifications of Ag3PO4 were observed upon recycling. After 4 recycles, the material maintained its photodegradation property; an eightfold increase in the efficiency of Ag3PO4 was observed in planktonic cells and a two fold increase in biofilm when irradiated under visible light. Thus, higher antifungal effectiveness against C. albicans was obtained when associated with visible-light irradiation.Funding for open access charge: CRUE-Universitat Jaume

Asymptomatic Leishmania infection in blood donors from a major blood bank in Northeastern Brazil: a cross-sectional study

This study has estimated the risk of Leishmania transmission via blood transfusion in one of the largest blood banks in Northeastern Brazil, where visceral leishmaniasis is endemic. Five hundred blood samples from donors were tested for circulating Leishmania spp. DNA by real-time PCR. Positive samples were tested by a species-specific conventional PCR targeting Leishmania infantum . Overall, 6.2% (95% CI: 4.1–8.3%) of the samples carried Leishmania DNA and in one sample the species was confirmed as L. infantum . No statistically significant differences were found in relation to gender, sex, education level, incomeas well as the place of residence between positive and negative blood donors. Our results confirm the presence of asymptomatic Leishmania carriers among blood donors in a large blood bank in Northeastern Brazil. Considering the studied population, we estimate that for every 1,000 blood donors screened, 41 to 83 will be positive for Leishmania DNA. This finding reinforces the urgent need for elaborating specific Blood bank guidelines to allow the early detection of asymptomatic Leishmania carriers among blood donors before their blood products are transfused to uninfected individuals

Sociologia do Direito e teoria dos sistemas: uma entrevista com o Professor Alfons Bora

Ferreira da Fonseca G, Fucci Amato L, Loschiavo Leme de Barros MA, et al. Sociologia do Direito e teoria dos sistemas: uma entrevista com o Professor Alfons Bora. Revista Brasileira de Sociologia do Direito. 2020;7(2):188-215.Entrevista realizada com o Prof. Dr. Alfons Bora, dia 26 de setembro de 2019, na sala de reuniões do Departamento de Filosofia e Teoria Geral do Direito, no Largo São Francisco (Faculdade de Direito da USP).</jats:p

Global Suicide: A problem of health systems

It is estimated that over 800 000 people die by suicide and that there are many suicide attempts for each death. Young people are among those most affected. The numbers differ between countries, but it is the low- and middle-income countries that bear most of the global suicide burden, with an estimated 75% of all suicides occurring in these countries. The importance of each risk factor and the way it is classified will depend on each context. These factors can contribute to suicidal behaviours directly but can also contribute indirectly by influencing individual susceptibility to mental disorders. From the analysis of the rate of suicide, the numbers of suicide preventions successful with the number of hospitalizations and hospitalized for attempted suicide, it becomes possible to determine a path in order to create social change in three important factors to be followed to be fulfilled: knowledge (scientific and practical), public support (political will) and a social strategy, showing up as a national response to achieve the goals of suicide prevention

Análise epidemiológica das internações por neoplasias malignas da mama no Brasil

This article aims to analyze the epidemiology of hospitalizations for malignant breast neoplasia in Brazil from 2018 to 2022. This is a descriptive, cross-sectional and epidemiological research. Data on hospitalizations for malignant breast neoplasia were obtained through the Hospital Information System of the Information Technology Department of the Unified Health System (SIH/DATASUS), considering the period from 2018 to 2022. Thus, the following variables were analyzed: year hospitalization, type of care, deaths, sex, age group, ethnicity, and region of the country. During the period analyzed, 354,911 hospitalizations for malignant breast neoplasia were recorded in Brazil. Thus, it was noted that women over 50 years of age and of the white race constitute the profile most affected by breast cancer, in accordance with the age at which mammography screening begins according to the Ministry of Health.Este artigo tem por objetivo analisar a epidemiologia das internações por neoplasia maligna da mama no Brasil no período de 2018 a 2022. Trata-se de uma pesquisa descritiva, transversal e epidemiológica. Os dados acerca das internações por neoplasia maligna de mama foram obtidos através do Sistema de Informações Hospitalares do Departamento de Informática do Sistema Único de Saúde (SIH/DATASUS), considerando o período de 2018 a 2022. Assim, foram analisadas as seguintes variáveis: ano de internação, caráter de atendimento, óbitos, sexo, faixa etária, etnia, e região do país. No período analisado, foram registradas 354.911 internações por neoplasia maligna da mama, no Brasil. Dessa forma, notou-se que mulheres acima de 50 anos e da raça branca constituem o perfil mais acometido pela neoplasia de mama, em concordância com a idade que se inicia o rastreio pela mamografia de acordo com o Ministério da Saúde. &nbsp

Derivados funcionais sulfatados de quitosana como agente de adsorção de Cd+2 / Functional derivatives of chitosan sulphate as Cd+2 adsorption agent

A quitosana, um polissacarídeo biocompatível, atóxico e abundante na região do Nordeste Brasileiro, tem se mostrado um material de grande interesse pela comunidade científica para fins ambientais. Devido a presença de grupos amino e hidroxila, este polissacarídeo pode ser submetido a reações de modificação estrutural, a fim de potencializar seu escopo de aplicações. Neste estudo, realizou-se reações de sulfatação e carboximetilação em quitosana de modo a ampliar sua capacidade de adsorção. Os dois derivados sintetizados apresentaram alta taxa de adsorção de Cd+2 em diferentes pH’s, com valores entre 50% a 70%. A quitosana sulfatada (QTS) possui uma capacidade máxima de adsorção (Qmax) superior a 275 mg/g, sendo maior que a capacidade adsortiva da quitosana reportada na literatura. Os estudos cinéticos demonstraram que os derivativos sulfatados de quitosana obedecem ao modelo de pseudo-segunda ordem, atingindo o tempo de equilíbrio rapidamente. Os estudos de isoterma de adsorção em função do pH demonstraram que a QTS obedece ao modelo de Langmuir em todos os pHs, com a adsorção ocorrendo em monocamada. Desta forma, observou-se que a QTS é um material muito promissor para a adsorção de cádmio