A Simple and Fast Method for the Production and Characterization of Methylic and Ethylic Biodiesels from Tucum Oil via an Alkaline Route

A simple, fast, and complete route for the production of methylic and ethylic biodiesel from tucum oil is described. Aliquots of the oil obtained directly from pressed tucum (pulp and almonds) were treated with potassium methoxide or ethoxide at 40°C for 40 min. The biodiesel form was removed from the reactor and washed with 0.1 M HCl aqueous solution. A simple distillation at 100°C was carried out in order to remove water and alcohol species from the biodiesel. The oxidative stability index was obtained for the tucum oil as well as the methylic and ethylic biodiesel at 6.13, 2.90, and 2.80 h, for storage times higher than 8 days. Quality control of the original oil and of the methylic and ethylic biodiesels, such as the amount of glycerin produced during the transesterification process, was accomplished by the TLC, GC-MS, and FT-IR techniques. The results obtained in this study indicate a potential biofuel production by simple treatment of tucum, an important Amazonian fruit

CONFECÇÃO DE DESTILADOR A VÁCUO COM MATERIAIS DESCARTADOS

A crescente busca pelo enquadramento do Brasil nos parâmetros de desenvolvimento sustentável e química verde representa um interesse industrial e econômico das grandes empresas da atualidade. O desenvolvimento de novos materiais é uma vertente que está agregada à inovação tecnológica, proporcionando a instalação de uma bioeconomia favorável ao crescimento do país. Com o aproveitamento correto de resíduos domésticos, pode-se incluir um novo ramo para os instrumentos laboratoriais indispensáveis, o que auxilia no aparato de laboratórios escolares. Dessa forma, o presente projeto teve como objetivo a construção de destilador a vácuo a partir de materiais reutilizáveis, os quais foram conectados a um destilador simples, presente no Laboratório de Ciências da escola E.E.E.P. Santa Rita. Na construção deste aparelho, foram utilizados: destilador simples, mangueira de borracha, condensador, dois suportes universais com garra, balão de fundo chato, adaptador, tubo de ensaio com saída lateral. Após a confecção foi observado redução da pressão interna e do tempo de destilação de duas soluções: hexano-óleo e água-etanol. A pressão interna foi alterada de 780mmHg para 546mmHg e 750mmHg para 528mmHg, respectivamente. O tempo de duração do processo teve um intervalo de redução de 8 minutos, para ambas as misturas. A construção do destilador a vácuo obteve êxito no resultado final, por promover a diminuição no tempo de processos de separação de misturas. Paralelamente, este trabalho permitiu o incentivo dos alunos a projetos de pesquisas científicas, bem como à preservação ambiental

ÁGUA INFECTADA E A CORRELAÇÃO COM A HEPATITE E

Hepatitis E infection is found worldwide and is common in low- and middle-income countries with limited access to essential water, sanitation, hygiene and health services. In these areas, the disease occurs in both outbreaks and sporadic cases. Outbreaks often follow periods of fecal contamination of drinking water supplies and can affect thousands of people. This article aims to raise awareness among the population about the risks of hepatitis E and mainly to highlight the correlation with water. This is an integrative review of the literature. Within the time window of the last five years. The results confirm the importance of drinking water and basic sanitation, as well as highlighting the lack of studies in this area. Therefore it is necessary to talk more about hepatitis E, this article has the legacy of being the basis for other reviews, highlighting that prevention is the most effective approach against infection, however it is necessary to maintain quality standards for public water supply and establish adequate human feces disposal systems, as well as personal hygiene care.A infecção por hepatite E é encontrada em todo o mundo e é comum em países de baixo e médio rendimento com acesso limitado a serviços essenciais de água, saneamento, higiene e saúde. Nessas áreas, a doença ocorre tanto em surtos quanto em casos esporádicos. Os surtos geralmente seguem-se a períodos de contaminação fecal do abastecimento de água potável e podem afetar milhares de pessoas. Esse artigo tem como objetivo conscientizar a população sobre os riscos da hepatite E e principalmente destacar a correlação com a água. Trata-se de uma revisão integrativa da literatura. Dentro da janela temporal dos últimos cinco anos. Os resultados confirmam a importância da água potável e saneamento básico, bem como evidenciam a falta de estudos nessa área. Por tanto é necessário falar mais sobre a hepatite E, esse artigo fica com o legado de ser base para outras revisões, ressaltando que a prevenção é a abordagem mais eficaz contra a infecção, entretanto é necessário manter padrões de qualidade para o abastecimento público de água e estabelecer sistemas adequados de eliminação de fezes humanas, bem como os cuidados de higiene pessoal

Tuberculose pulmonar: perfil epidemiológico do sertão Pernambucano, Brasil / Pulmonary tuberculosis: epidemiological profile of sertão Pernambucano, Brazil

Atualmente, observa-se que a tuberculose pulmonar constitui um importante problema de Saúde Pública no mundo, uma vez que esse agravo apresentou, em 2015, 10,4 milhões de casos, dos quais, mais de um milhão de pessoas vieram a óbito. Sob essa perspectiva, o presente artigo tem como objetivo traçar um perfil epidemiológico dos casos de Tuberculose Pulmonar notificados no município de Serra Talhada, entre os anos de 2007 a 2017. Foi realizado um estudo de série histórica observacional do tipo transversal, no intervalo de tempo de 2007 a 2017.  No período investigado o número de casos de tuberculose pulmonar foi de 246 casos, o local que teve a maior prevalência foi Serra Talhada, 287 por 100 mil habitantes. Diante dos dados apresentados, é imprescindível concluir, portanto, que esse estudo corrobora o perfil epidemiológico brasileiro para a Tuberculose Pulmonar, o qual indica variabilidade nos índices de acometimento durante o período analisado

Educomunicação e suas áreas de intervenção: Novos paradigmas para o diálogo intercultural

oai:omp.abpeducom.org.br:publicationFormat/1O material aqui divulgado representa, em essência, a contribuição do VII Encontro Brasileiro de Educomunicação ao V Global MIL Week, da UNESCO, ocorrido na ECA/USP, entre 3 e 5 de novembro de 2016. Estamos diante de um conjunto de 104 papers executivos, com uma média de entre 7 e 10 páginas, cada um. Com este rico e abundante material, chegamos ao sétimo e-book publicado pela ABPEducom, em seus seis primeiros anos de existência. A especificidade desta obra é a de trazer as “Áreas de Intervenção” do campo da Educomunicação, colocando-as a serviço de uma meta essencial ao agir educomunicativo: o diálogo intercultural, trabalhado na linha do tema geral do evento internacional: Media and Information Literacy: New Paradigms for Intercultural Dialogue

A Simple and Fast Method for the Production and Characterization of Methylic and Ethylic Biodiesels from Tucum Oil via an Alkaline Route

A simple, fast, and complete route for the production of methylic and ethylic biodiesel from tucum oil is described. Aliquots of the oil obtained directly from pressed tucum (pulp and almonds) were treated with potassium methoxide or ethoxide at 40 • C for 40 min. The biodiesel form was removed from the reactor and washed with 0.1 M HCl aqueous solution. A simple distillation at 100 • C was carried out in order to remove water and alcohol species from the biodiesel. The oxidative stability index was obtained for the tucum oil as well as the methylic and ethylic biodiesel at 6.13, 2.90, and 2.80 h, for storage times higher than 8 days. Quality control of the original oil and of the methylic and ethylic biodiesels, such as the amount of glycerin produced during the transesterification process, was accomplished by the TLC, GC-MS, and FT-IR techniques. The results obtained in this study indicate a potential biofuel production by simple treatment of tucum, an important Amazonian fruit

The relationship between the level of vitamin D and ruptured intracranial aneurysms among patients with high sun exposure

Abstract Non-traumatic subarachnoid hemorrhage (SAH) accounts for 3–5% of acute strokes. Intracranial aneurysm is the most common cause of non-traumatic SAH. Vitamin D influences the cardiovascular system, including the formation and rupture of cerebral aneurysms. To evaluate the serum vitamin D level in patients living in the tropical zone who suffered aneurysmal subarachnoid hemorrhage and its correlation with demographic and neurological characteristics. This is an analytical cross-sectional study to assess the serum level of vitamin D in a study population of 99 patients treated and diagnosed with aSAH in a public hospital in Recife-PE over a period of 12 months. In the study sample, composed of individuals with high sun exposure due to the lifestyle they lead in a tropical region, we observed hypovitaminosis D (85.9%), with a median of 19.9 ng/ml, although the majority of individuals are skin with high concentration of melanin (Fitzpatrick skin type IV and V). In addition, rates of sun exposure are high to all patients (Solar Index 9.03 P50). Most individuals were female (79.8%); there was no statistical difference in solar exposure/solar index between genders. As for the neurological repercussions, there was no statistical relevance in the clinical prognostic scales evaluated. As the sample was composed mainly of individuals whose economic activity is agriculture, the values of solar index found are vastly higher than those of other studies conducted in high latitude regions. In line with the literature review, some aspects were raised with the objective of justifying such findings that go from the base of the poor diet of these individuals, the increase of melanin in the skin and genetic alterations that directs us to possible mechanisms of natural photoprotection to high sun exposure. Thus, we had a vast majority (85%) of hypovitaminosis D, which in fact makes us wonder if there is any influence of calcitriol on vitamin D receptors in vascular walls and in the cardiovascular system as a whole, which influence bleeding events of this nature. As for the neurological repercussions, measured using assessment scales (Glasgow coma scale, WFNS scale, Hunt–Hess and Fisher's tomographic scale) there was no significant difference in the results. As it is only a descriptive study, the causal relationship of the facts cannot be established. However, in a population exposed to high sun exposure and affected by aneurysmal SAH, there is a significant rate of hypovitaminosis D, which supports the hypothesis that vitamin D plays a role in vascular pathologies, such as cerebral aneurysms and SAH

AMAZONIA CAMTRAP: A data set of mammal, bird, and reptile species recorded with camera traps in the Amazon forest

The Amazon forest has the highest biodiversity on Earth. However, information on Amazonian vertebrate diversity is still deficient and scattered across the published, peer-reviewed, and gray literature and in unpublished raw data. Camera traps are an effective non-invasive method of surveying vertebrates, applicable to different scales of time and space. In this study, we organized and standardized camera trap records from different Amazon regions to compile the most extensive data set of inventories of mammal, bird, and reptile species ever assembled for the area. The complete data set comprises 154,123 records of 317 species (185 birds, 119 mammals, and 13 reptiles) gathered from surveys from the Amazonian portion of eight countries (Brazil, Bolivia, Colombia, Ecuador, French Guiana, Peru, Suriname, and Venezuela). The most frequently recorded species per taxa were: mammals: Cuniculus paca (11,907 records); birds: Pauxi tuberosa (3713 records); and reptiles: Tupinambis teguixin (716 records). The information detailed in this data paper opens up opportunities for new ecological studies at different spatial and temporal scales, allowing for a more accurate evaluation of the effects of habitat loss, fragmentation, climate change, and other human-mediated defaunation processes in one of the most important and threatened tropical environments in the world. The data set is not copyright restricted; please cite this data paper when using its data in publications and we also request that researchers and educators inform us of how they are using these data