Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

The aim of this study was to monitor the phenological development of okra (Abelmoschus esculentus L., malvaceae), cultivar Santa Cruz 47, in pots with different sources of organic matter. The research was carried out at the State University of Alagoas Campus from January to December 2020 in the greenhouse. The experiment started with the germination test in seed and pots. After the seeds were germinated, the phenology monitoring was carried out. The experimental design was completely randomized, with 4 treatments (t1 - soil without manure, t2 - soil + carbonized rice husk, t3 - soil + goat manure and t4 - soil + cattle manure) and 5 replications, totaling 20 pots. After 20 days of sowing, the plants were thinned, leaving only one plant in each pot, the variables analyzed after thinning were: plant height (AP), stem diameter (DC), number of leaves (NF) and number of flower buds (NBF), in all repetitions. Phenological data were submitted to ANOVA (analysis of variance) for mean comparison. In data analysis, it was found that there was a significant difference between treatments, especially those with cattle and goat manure.

Por ser oriunda de fonte renovável e inesgotável, a energia eólica vem ganhando espaço no Brasil e no mundo. Quando comparada a energias advindas de fontes fósseis, esta se apresenta como uma alternativa para diminuição da emissão dos Gases de Efeito Estufa (GEE), no entanto, como qualquer outra atividade, a energia eólica é passível de impactos negativos. Nesse sentido, o presente estudo tem como objetivo, investigar os impactos causados por parques eólicos no meio ambiente e nas comunidades próximas de sua localização. Para tal, foi realizada uma revisão sistemática da literatura, a partir da busca de artigos teórico-empíricos, nas bases de dados da Web of Science, Scopus e Scielo. Tais estudos passaram por uma triagem que visou responder a seguinte pergunta questão: Como a implantação de parques eólicos no Brasil pode impactar no meio ambiente e na comunidade local? A partir da análise dos dados, observou-se que os impactos abrangeram as esferas ambiental, social, econômica e até a cultural, tornando a produção de energia eólica ainda distante de uma atividade sustentável. Por fim, a partir dessa pesquisa, ficou evidente a importância que os estudos de casos possuem ao se aprofundem nos impactos socioambientais, bem como, no incentivo à mitigação dos impactos de futuros parques eólicos.

The present study aims to describe the aspects related to the factors that influence the attempt and/or suicide among medical class. This is an integrative review realized at Pubmed, Virtual Health Library (Medline, LILACS e IBECS) and Scielo. The following descriptors were used in Health Sciences (DeCS), "Suicide", "physicians" and "doctors" and the Boolean operator (AND). As inclusion criteria, full papers published in Portuguese and English during the last six years (2015-2020) related to the subject of this study. From the crossing of the descriptors, 82 references were gathered, and 8 articles was selected as research samples. It was verified that several factors are associated to suicidal ideation and suicide like depression end development of psychological disorders.  It is hoped that this research can bring a warning to the entire medical community of the risks faced by these professionals and the importance of preserving the mental health.

The present research focused on the original processes and the present conditions of the sandy features called paleodunes along the São Francisco River in the states of Bahia and Pernambuco. Such features are significant records for the understanding of the climatic elements and factors that act over these areas, which are essential for understanding the genesis and evolution of these features through historical time. In this sense, the objective of this article was to analyze the discussions and the scientific records of researchers about this theme, from a systematic literature review, motivated to answer guiding questions (QNs). In order to answer the listed problematic, it was performed, from descriptors, the consultation in search sites, works that approached the theme in thesis, using strict inclusion and exclusion criteria of the findings, through a previously elaborated protocol, with a stipulated time frame. The publications found discuss the processes of origin, evolution, current conditions of these features and possible mitigating actions for the impacts, and point to the need for conservation of these paleoenvironments.

This study aimed to determine the diameter distribution of arboreal and regenerating individuals in an area of Caatinga in recovery process. The work was developed at the NUPEARIDO farm, Patos – PB, where adult individuals of the species Mimosa tenuiflora and Cnidoscolus quercifolius were planted in 2008 and in 2014, the secondary Handroanthus impetiginosus and Amburana cearensis. Diameter measurements were performed at breast level (DBH) and at ground level (DNS), for the trees and regenerants of both species, respectively. Mortality of secondary species and soil moisture content were also observed over the months of the year. The results showed that the arboreal individuals of both pioneer species are centered in the diameter class II (12-22 cm). As for regenerants, the largest number of individuals is found in diameter class I (0.2-12 mm) for Mimosa tenuiflora and class II (12 – 22 mm) for Cnidoscolus quercifolius. The high mortality of secondary species was found. The largest diameters were found in the first diametric classes, in which the climatic conditions may be related to the development of the species and the regeneration process in an area undergoing recovery requires time to adapt to local conditions.

Dentro de uma realidade nova, o mundo precisou se adaptar aos novos padrões de vida modificados pela presença do SARS-Cov 2. Este vírus tem uma potência de contaminação em larga escala fazendo com que o distanciamento social e isolamento sejam os principiais métodos de prevenção da doença COVID-19. Entretanto, o uso de máscara, higienização das mãos e de superfícies passou a ser rotina diária para prevenção e eliminação do vírus. O respectivo trabalho aborda uma perspectiva química e biológica nos métodos de desinfecção de superfícies utilizando saneantes químicos de grande uso na limpeza e higienização de ambientes, mostrando os mecanismos de ação em contato com o vírus SARS-CoV 2 e a sua eficácia.  

Anthropology has stood out when studying man and his relationship with the environment, to the point of thinking about a construction of an ecological culture coherent with the needs of contemporaneity and with the development of a truly sustainable society. The objective of this research is to relate the structuralist cultural anthropology of Lévi-Strauss and the sustainability of the Riacho Reginaldo Hydrographic Basin, in the municipality of Maceió, Alagoas. The methodology corresponds to a literature review and identification of space, time, model of modern society through Lévi-Strauss' structuralist theory, in addition to the social, environmental and cultural characteristics of this watershed. The results show the relationship between structuralist theory and sustainable social awareness. Lévi-Strauss affirms that for the future of contemporary societies, preserving or restoring the psychological, social and moral factors inherent in the production systems of cold societies and with that, the propagation of sustainable development, uniting primitive ideas with Western thoughts. In the Riacho Reginaldo watershed, it is important to raise awareness of the local population and efficient public policies aimed at sustainability, in addition to depollution projects in order to reduce odor and the large amount of solid waste generated.

Conhecer a distribuição geográfica das espécies e as variáveis que influenciam sua ocorrência são essenciais para a conservação da biodiversidade. O objetivo desse estudo foi investigar a potencial distribuição de Vellozia cinerascens (Mart.) Mart. ex Seub., na região nordeste do Brasil, e identificar as variáveis ambientais que influenciam a sua distribuição. Para a análise da modelagem foram utilizados dados de ocorrência da espécie e variáveis climáticas referentes a três cenários: atual (1970-2000), futuro pessimista e otimista (2080’). O algoritmo Maxent foi escolhido para relacionar a ocorrência da espécie com variáveis bioclimáticas que refletem diferentes condições de temperatura, precipitação e sazonalidade. A influência das variáveis sobre a distribuição das espécies foi avaliada pelo teste Jackknife, já os modelos foram validados pelo índice AUC. Os modelos apresentaram bom desempenho, os valores dos índices AUC foram consistentes variaram entre 0,85 a 0,89. Os mapas preveem áreas de ampla ocorrência para a espécie na região nordeste. Os modelos evidenciaram uma ampliação da área ambientalmente adequada da espécie para o período atual e aumento considerável para o futuro. As variáveis ambientais que mais contribuíram para a distribuição dessa espécie foram às relacionadas à temperatura e umidade. Foi visualizado o surgimento de áreas com alta adequabilidade ambiental para o cenário futuro. As áreas de adequabilidade apresentaram aumento, indicando que as mudanças climáticas provavelmente não afetarão a ocorrência dessa espécie.

Arsenic is a major concern for the environment, as its rate of soil contamination is intense, whether in natural processes or by human activities (use of insecticides, herbicides and fertilizers). Bioremediation is a sustainable technique that can be considered safe, less costly and aggressive to the environment and uses microorganisms as a tool for the remediation of soils contaminated by arsenic, in order to reduce or eliminate the degradation of these soils. Given the need for the scientific community to improve its techniques and several companies, especially those related to consulting and environmental remediation, arouse interest in the implementation of bioremediation, as an option for the rehabilitation of contaminated areas. The objective is to elaborate a wide literature review and identify the main characteristics of arsenic soil contamination, using bioremediation. An integrative literature review was applied using the terms Arsenic, Bioremediation and Soil in Portuguese, English and Spanish. We searched the databases Scielo, Pubmed, Academic Google and BDTD using a 10 years time-frame. The review showed that soil contamination with arsenic directly affects the quality of agricultural products, productivity, ecosystem sustainability and biodiversity. It is concluded that the available bioremediation techniques often need to be used together, in order to face the mixture of different toxic components in the same area

The electronic cigarette (EC) was introduced in the market as a less harmful alternative to conventional cigarettes (CC) and as a therapeutic option to combat smoking, and soon gained the market, attracting mainly the young and adolescent public. Despite this, several studies have suggested that the chronic and acute use of ECs is directly linked to the emergence of various respiratory, gastrointestinal and oral diseases, among others, in addition to causing dependence and encouraging the use of CC. The objective of this research was to carry out a survey about the damage to health caused using EC. A bibliographic survey was carried out in scientific databases indexed in the Scielo, Google scholar and Portal Capes from 2016, using the descriptors " electronic cigarette", "pathology" and "disease" in English and Portuguese. Therefore, it was possible to notice that the literature indicates that the use of these electronic devices can cause lung injuries, acute poisoning, compromise oral health, alter gastrointestinal homeostasis and generate dependence. On the other hand, knowledge about these harms is still not widespread among its users. Therefore, the importance of researching and elucidating all the physiological mechanisms altered by the use of electronic vaporizers is evident, as well as disseminating this information about this new habit to the population.