1,824 research outputs found

    Ensino de biologia vegetal a partir da construção de um terrário

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    Anais do II Seminário Seminário Estadual PIBID do Paraná: tecendo saberes / organizado por Dulcyene Maria Ribeiro e Catarina Costa Fernandes — Foz do Iguaçu: Unioeste; Unila, 2014Em diversas literaturas, os terrários são apontados como modelos de ecossistema. E o presente trabalho relata uma experiência que tem sido vivida com alunos do segundo ano do Ensino Médio. As aulas acerca do ensino de Biologia Vegetal têm sido ministradas a partir do acompanhamento do terrário montado pelos próprios alunos. Conteúdos como: respiração, fotossíntese, ciclo biogeoquímico, biomas, fisiologia de plantas, tem sido trabalhado de forma mais simples, facilitando tanto o ensino quanto a aprendizagem. Esse método de aula estimula o trabalho em grupo e leva os alunos a uma aprendizagem mais significativa. E aos professores PIBID, da à oportunidade de capacitar-se mais a docênci

    Lesão Pulmonar Associada Ao Uso De Cigarros Eletrônicos: Revisão De Literatura

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    E-cigarettes, a widely used emerging product, are facing growing popularity despite little research into their health risks. Electronic Cigarette Use Associated Lung Injury, or EVALI, has become a prominent concern in recent research, expanding the need to understand the health effects of vaping, given the diversity of technologies and liquids involved. An integrative review was carried out to analyze the relationship between electronic cigarettes and lung injuries, using the PubMed database. 664 articles were selected, with inclusion criteria based on human studies published between 2018 and 2023. The analysis, exclusion and selection process was carefully conducted by the authors. Electronic cigarettes, consisting of a battery, atomizer and liquid, stand out due to the uncertainty about their health effects, in contrast to traditional cigarettes. EVALI, predominantly associated with the vaporization of THC products, reveals serious symptoms and significant risks. The complex composition of e-liquids, especially when exposed to high temperatures, generates harmful substances, including carbonyl compounds, suspected of causing oxidative stress and inflammation in the airways. The integrative review highlights the lack of consensus on the safety of electronic cigarettes and the urgency in understanding the associated risks. EVALI, as a diagnosis of exclusion, highlights the need for immediate investigation in the event of respiratory symptoms. Treatment and monitoring of EVALI patients requires a careful approach, considering clinical and risk factors. Public education about potential dangers and cessation strategies becomes crucial, especially among young people.Los cigarrillos electrónicos, un producto emergente ampliamente utilizado, se enfrentan a una creciente popularidad a pesar de la poca investigación sobre sus riesgos para la salud. La lesión pulmonar asociada al uso de cigarrillos electrónicos, o EVALI, se ha convertido en una preocupación destacada en investigaciones recientes, ampliando la necesidad de comprender los efectos del vapeo en la salud, dada la diversidad de tecnologías y líquidos involucrados. Se realizó una revisión integradora para analizar la relación entre los cigarrillos electrónicos y las lesiones pulmonares, utilizando la base de datos PubMed. Se seleccionaron 664 artículos, con criterios de inclusión basados ​​en estudios en humanos publicados entre 2018 y 2023. El proceso de análisis, exclusión y selección fue cuidadosamente realizado por los autores. Los cigarrillos electrónicos, compuestos por batería, atomizador y líquido, destacan por la incertidumbre sobre sus efectos sobre la salud, a diferencia de los cigarrillos tradicionales. EVALI, predominantemente asociado con la vaporización de productos de THC, revela síntomas graves y riesgos importantes. La compleja composición de los e-líquidos, especialmente cuando se exponen a altas temperaturas, genera sustancias nocivas, incluidos compuestos carbonílicos, sospechosos de causar estrés oxidativo e inflamación en las vías respiratorias. La revisión integradora destaca la falta de consenso sobre la seguridad de los cigarrillos electrónicos y la urgencia de comprender los riesgos asociados. EVALI, como diagnóstico de exclusión, destaca la necesidad de investigación inmediata en caso de síntomas respiratorios. El tratamiento y seguimiento de los pacientes con EVALI requiere un enfoque cuidadoso, considerando los factores clínicos y de riesgo. La educación pública sobre los peligros potenciales y las estrategias para dejar de fumar se vuelve crucial, especialmente entre los jóvenes.Os cigarros eletrônicos, produto emergente amplamente utilizado, enfrentam crescente popularidade apesar da escassa investigação sobre seus riscos à saúde. A Lesão Pulmonar Associada ao Uso de Cigarro Eletrônico, ou EVALI, tornou-se uma preocupação destacada nas pesquisas recentes, ampliando a necessidade de compreender os efeitos da vaporização na saúde, dada a diversidade de tecnologias e líquidos envolvidos. Realizou-se uma revisão integrativa para analisar a relação entre cigarros eletrônicos e lesões pulmonares, utilizando a base de dados PubMed. Foram selecionados 664 artigos, com critérios de inclusão baseados em estudos humanos publicados entre 2018 e 2023. O processo de análise, exclusão e seleção foi conduzido de forma criteriosa pelos autores. Os cigarros eletrônicos, compostos por bateria, atomizador e líquido, destacam-se pela incerteza sobre seus efeitos à saúde, em contraste com os tradicionais. A EVALI, predominantemente associada à vaporização de produtos com THC, revela sintomas graves e riscos significativos. A composição complexa dos e-líquidos, especialmente quando expostos a altas temperaturas, gera substâncias nocivas, incluindo compostos carbonílicos, suspeitos de causar estresse oxidativo e inflamação nas vias aéreas. A revisão integrativa destaca a falta de consenso sobre a segurança dos cigarros eletrônicos e a urgência em compreender os riscos associados. A EVALI, como diagnóstico de exclusão, destaca a necessidade de investigação imediata diante de sintomas respiratórios. O tratamento e o acompanhamento de pacientes EVALI requerem abordagem cuidadosa, considerando fatores clínicos e de risco. A educação pública sobre os perigos potenciais e estratégias de cessação torna-se crucial, especialmente entre os jovens

    Early Life Child Micronutrient Status, Maternal Reasoning, and a Nurturing Household Environment have Persistent Influences on Child Cognitive Development at Age 5 years : Results from MAL-ED

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    Funding Information: The Etiology, Risk Factors and Interactions of Enteric Infections and Malnutrition and the Consequences for Child Health and Development Project (MAL-ED) is carried out as a collaborative project supported by the Bill & Melinda Gates Foundation, the Foundation for the NIH, and the National Institutes of Health/Fogarty International Center. This work was also supported by the Fogarty International Center, National Institutes of Health (D43-TW009359 to ETR). Author disclosures: BJJM, SAR, LEC, LLP, JCS, BK, RR, RS, ES, LB, ZR, AM, RS, BN, SH, MR, RO, ETR, and LEM-K, no conflicts of interest. Supplemental Tables 1–5 and Supplemental Figures 1–3 are available from the “Supplementary data” link in the online posting of the article and from the same link in the online table of contents at https://academic.oup.com/jn/. Address correspondence to LEM-K (e-mail: [email protected]). Abbreviations used: HOME, Home Observation for Measurement of the Environment inventory; MAL-ED, The Etiology, Risk Factors, and Interactions of Enteric Infections and Malnutrition and the Consequences for Child Health and Development Project; TfR, transferrin receptor; WPPSI, Wechsler Preschool Primary Scales of Intelligence.Peer reviewe

    Early life child micronutrient status, maternal reasoning, and a nurturing household environment have persistent influences on child cognitive development at age 5 years: Results from MAL-ED

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    Background: Child cognitive development is influenced by early-life insults and protective factors. To what extent these factors have a long-term legacy on child development and hence fulfillment of cognitive potential is unknown. Objective: The aim of this study was to examine the relation between early-life factors (birth to 2 y) and cognitive development at 5 y. Methods: Observational follow-up visits were made of children at 5 y, previously enrolled in the community-based MAL-ED longitudinal cohort. The burden of enteropathogens, prevalence of illness, complementary diet intake, micronutrient status, and household and maternal factors from birth to 2 y were extensively measured and their relation with the Wechsler Preschool Primary Scales of Intelligence at 5 y was examined through use of linear regression. Results: Cognitive T-scores from 813 of 1198 (68%) children were examined and 5 variables had significant associations in multivariable models: mean child plasma transferrin receptor concentration (β: −1.81, 95% CI: −2.75, −0.86), number of years of maternal education (β: 0.27, 95% CI: 0.08, 0.45), maternal cognitive reasoning score (β: 0.09, 95% CI: 0.03, 0.15), household assets score (β: 0.64, 95% CI: 0.24, 1.04), and HOME child cleanliness factor (β: 0.60, 95% CI: 0.05, 1.15). In multivariable models, the mean rate of enteropathogen detections, burden of illness, and complementary food intakes between birth and 2 y were not significantly related to 5-y cognition. Conclusions: A nurturing home context in terms of a healthy/clean environment and household wealth, provision of adequate micronutrients, maternal education, and cognitive reasoning have a strong and persistent influence on child cognitive development. Efforts addressing aspects of poverty around micronutrient status, nurturing caregiving, and enabling home environments are likely to have lasting positive impacts on child cognitive development.publishedVersio

    Pervasive gaps in Amazonian ecological research

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    Pervasive gaps in Amazonian ecological research

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    Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

    Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

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    Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

    Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

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    This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good

    Juxtaposing BTE and ATE – on the role of the European insurance industry in funding civil litigation

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    One of the ways in which legal services are financed, and indeed shaped, is through private insurance arrangement. Two contrasting types of legal expenses insurance contracts (LEI) seem to dominate in Europe: before the event (BTE) and after the event (ATE) legal expenses insurance. Notwithstanding institutional differences between different legal systems, BTE and ATE insurance arrangements may be instrumental if government policy is geared towards strengthening a market-oriented system of financing access to justice for individuals and business. At the same time, emphasizing the role of a private industry as a keeper of the gates to justice raises issues of accountability and transparency, not readily reconcilable with demands of competition. Moreover, multiple actors (clients, lawyers, courts, insurers) are involved, causing behavioural dynamics which are not easily predicted or influenced. Against this background, this paper looks into BTE and ATE arrangements by analysing the particularities of BTE and ATE arrangements currently available in some European jurisdictions and by painting a picture of their respective markets and legal contexts. This allows for some reflection on the performance of BTE and ATE providers as both financiers and keepers. Two issues emerge from the analysis that are worthy of some further reflection. Firstly, there is the problematic long-term sustainability of some ATE products. Secondly, the challenges faced by policymakers that would like to nudge consumers into voluntarily taking out BTE LEI

    Search for stop and higgsino production using diphoton Higgs boson decays

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    Results are presented of a search for a "natural" supersymmetry scenario with gauge mediated symmetry breaking. It is assumed that only the supersymmetric partners of the top-quark (stop) and the Higgs boson (higgsino) are accessible. Events are examined in which there are two photons forming a Higgs boson candidate, and at least two b-quark jets. In 19.7 inverse femtobarns of proton-proton collision data at sqrt(s) = 8 TeV, recorded in the CMS experiment, no evidence of a signal is found and lower limits at the 95% confidence level are set, excluding the stop mass below 360 to 410 GeV, depending on the higgsino mass
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