Evolución de la cobertura vegetal en el Parque Nacional Cerros de Amotape de Tumbes utilizando el Índice de Vegetación de Diferencia Normalizada (NDVI): 2000 – 2014
subject: NDVI, cerros de amotape, teledetección, áreas naturales
description: El Parque Nacional Cerros de Amotape Área Natural Protegida, ecosistema con alto valor natural con gran diversidad biológica sufre una fuerte presión, por el cambio climático, actividades antropogénicas, afectando sus áreas de cobertura vegetal (CV). Evaluar su evolución en el Parque Nacional Cerros de Amotape a través del Índice de Vegetación de Diferencia Normalizada (NDVI). Aplicando técnicas de teledetección, mediante análisis multitemporal: 2000-2014, meses marzo a mayo, contrastando temperatura y precipitación. Clasificando valores NDVI: CV tipo 01, suelo sin CV o cuerpos de agua; CV tipo 02, suelo con CV mixta entre suelo desnudo, hierbas o arbustos; CV tipo 03, suelo con vegetación poco densa y la CV tipo 04 suelo con CV densa, suelos cubiertos por árboles y arbustos frondosos y vigorosos; con valores NDVI elevados, con tendencia negativa en su extensión y sustituida por coberturas con NDVI bajos, relacionados directamente con la ausencia precipitaciones pluviales y altas temperaturas, siendo más crítica por la extracción forestal, afectando su capacidad de resiliencia. Incrementándose la cobertura tipo 01, 02, 03, afectada por el pastoreo y agricultura, esta información es elemental, para la adecuada toma de decisiones en la protección y conservación del Parque Nacional.
creator: Adán Campos, Edwin Guerrero, Eber Gines
source: Manglar
publisher: Universidad Nacional de Tumbes
date: 2018
relation: https://erp.untumbes.edu.pe/revistas/index.php/manglar/article/view/92
coverage: Agriculture (General), Plant culture, Animal culture, Ecology

Las enseñanzas de Don Jesús: Una forma yaqui de agroecología
subject: Reconversión productiva, agua, diversificación, seguridad alimentaria, sustentabilidad
description: El objetivo del presente trabajo fue realizar una aproximación para comparar el nivel de sustentabilidad entre el sistema monocultivo trigo y un sistema diversificado presentes en el Valle del Yaqui, lugar donde nació la llamada Revolución Verde y se encuentra localizado en el Sur de Sonora, México. Los ejes del análisis son la innovación, el consumo del agua y la rentabilidad. La metodología aplicada para la realización del presente estudio es una modificación al Marco para la Evaluación de Sistemas de Manejo de Recursos Naturales Incorporando Indicadores de Sustentabilidad (MESMIS). Los resultados indican que, de los 13 indicadores de sustentabilidad evaluados, el sistema diversificado presenta más indicios de sustentabilidad.
creator: Adán Guillermo Ramírez-García
source: Revista Arbitrada Interdisciplinaria Koinonía
publisher: Fundación Koinonia
date: 2020
relation: https://fundacionkoinonia.com.ve/ojs/index.php/revistakoinonia/article/view/557
coverage: Social sciences (General), General Works

Life Cycle Inventory and assessment of the municipal solid waste management system: a case study in a municipality in southern Brazil
description: The present study conducted a Life Cycle Assessment evaluation of the Solid Waste Management System in Santa Cruz do Sul – RS, in order to provide background information and therefore support decision-making for future waste management scenarios. The software package named as Integrated Waste Management – 2, Version 2.5., was used to perform the LCA, where all inputs and waste management system outputs were identified and quantified. The conversion of the results from Life Cycle Inventory to Life Cycle Assessment in environmental impacts was carried out based on impact characterization factors from RECIPE 2008 version 1.08. The impact categories studied were: Photochemical Oxidant Formation Potential, Global Warming Potential, Acidification Potential, Eutrophication Potential, Depletion of the Ozone Layer Potential and Particulate Matter Formation Potential in addition to the Use of Energy and Final Solid Waste. The current waste management scenario has been simulated as baseline, considering three additional scenarios, which included raising the number of households served by selective collection, improvement of recycling recovery efficiency in the sorting stage and the introduction of the biological treatment stage into the system by composting the organic matter. The results showed that the current scenario is the most impacting, for global warming, with a total of 12,102,122.85 kg of emissions per year, whereas scenario 04 showed to represent the lowest contribution rates to environmental impacts in carbon footprint perspective (5,946,702.47 kg of emissions per year). The final disposal stage in landfills had also contributed significantly to environmental impact rates, followed by the waste collection scenario. The proposed changes, suggested by alternative scenarios, had demonstrate considerable environmental savings, hereby justifying the importance of implementing these strategies in waste management. Keywords: Life Cycle Assessment. Environmental Impact. IW…
creator: Adan William da Silva Trentin, Adilson Moacir Becker Jr, Ênio Leandro Machado, Pâmela Andréa Mantey dos Santos, Adriane de Assis Lawisch Rodriguez, Diosnel Antonio Rodriguez Lopez
source: LALCA
publisher: Instituto Brasileiro de Informação em Ciência e Tecnologia (IBICT)
date: 2019
relation: http://revista.ibict.br/lalca/article/view/3788
coverage: Environmental technology. Sanitary engineering, Industrial engineering. Management engineering

Transferência de tecnologia para integração lavoura-pecuária em milho, sorgo e milheto pela Embrapa e Emater, no Rio Grande do Sul
subject: Agricultura Familiar, Extensão rural, desenvolvimento rural
description: O objetivo deste trabalho consiste em relatar os resultados de validações de tecnologias da Embrapa e a percepção dos agricultores usuários, dentro de sistemas de produção em propriedades familiares, no estado do Rio Grande do Sul, na safra 2009/10. Foram selecionadas propriedades e instaladas 21 unidades demonstrativas em vários ambientes do Rio Grande do Sul, com áreas entre 500 e 5.000 m2 por cultivar de milho (Zea mays L.) cv. BRS 1002, sorgos [Sorghum bicolor (L.) Moench] cvs. BRS 610 e BRS 800 e milheto [Pennisetum americanum (L.) Leeke] cv. BRS 1501, em faixas, de forma a permitir comparação pelos agricultores. Na instalação, durante o desenvolvimento das unidades e na colheita, foi realizado acompanhamento por técnicos da Emater, da Embrapa Trigo e da Embrapa Transferência de Tecnologia. A transferência deu-se sob a forma de visitas técnicas, dias de campo e divulgação por rádio para os agricultores, além da avaliação do desempenho das unidades. Avaliações foram realizadas pelos agricultores e observou-se que notas mais altas foram obtidas pelo sorgo em relação a milheto e milho. No entanto, todos foram predominantemente favoráveis ao emprego das cultivares, referindo como ponto positivo principal a boa produção de massa verde.
creator: Adão da Silva Acosta, Renato Serena Fontaneli, Henrique Pereira Santos, Marcelo Antonio Araldi Brandoli, Márcio Pacheco Silva, Francisco Tenório Falcão Pereira, Jane Rodrigues de Assis Machado
source: Pesquisa Agropecuária Gaúcha
publisher: Fundação Estadual de Pesquisa Agropecuária (Fepagro)
date: 2011
relation: http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/164
coverage: Agriculture (General), Agriculture

Safeguarding from COVID-19: educating healthcare workers about the available protective equipment.
subject: Health Personnel, covid-19, hand hygiene, Personal protective equipment, humans
description: Coronavirus disease 2019 (COVID-19) is a viral illness which is transmitted through droplet spread and possibily the aerosol method. Older individuals are at higher risk compared with younger adults and children due to the presence of weaker immune functions. Healthcare workers are also at higher risk due to close proximity with the infected cases. Proper precautions and hand hygiene techniques can prevent the transmission of the disease. There is a dearth of evidence on how to manage the disease; therefore, protective measures might help to reduce the spread of infection. This article aimed to evaluate the preventive measure and use of protective equipment among healthcare workers and community settings. Various recent literature searched in the following databases-Medline/PubMed, CINAHL, Scopus-recommendations from centre for disease control and prevention (CDC) and World Health Organization (WHO) reports on preventive measures of COVID-19 were included. After reviewing the previous literature, we summarized proper precautions and hygiene techniques, use of PPE and applicability of surgical and N95 (can block 95% small particles but not resistant to oil) masks to prevent the transmission of disease. This viewpoint can be considered as a unique example of information on infection control and protective measures. However, due to the lack of evidence, further research is required to compare the effectiveness of medical masks and N95 masks.
creator: Adarsh Kumar Srivastav, Sarita Khadayat, Asir John Samuel, Vipin Saini, Vipin Kukkar, Mahendra Singh Rathore
source: Zeitschrift fur Gesundheitswissenschaften = Journal of public health
date: 2021

Efeito da utilização de assistência técnica sobre a renda de produtores familiares do Brasil no ano de 2014
subject: Agricultura Familiar, Capacitação, assistência técnica, política agrícola
description: Resumo: Análises quantitativas dos efeitos da assistência técnica e extensão rural (ATER) são fundamentais para o aperfeiçoamento da política. Com o objetivo de avaliar o efeito da utilização de assistência técnica sobre a renda mensal dos agricultores familiares brasileiros, no presente trabalho aplicou-se o instrumento econométrico Propensity Score Matching, utilizando-se dados da Pesquisa Nacional por Amostras Domiciliares (PNAD) do ano de 2014. Os resultados obtidos evidenciaram acréscimo estatisticamente significativo de R$ 490,54 sobre a renda mensal dos agricultores familiares devido à utilização de assistência, o que comprova a efetividade da ATER enquanto instrumento de geração de renda. Além disso, a análise em nível agregado permite inferir que o acréscimo de renda mensal total para os agricultores familiares em 2014, devido às ações de ATER, foi estatisticamente superior ao gasto anual do governo com o Programa de Assistência Técnica e Extensão Rural na Agricultura Familiar. Conclui-se, desse modo, que há forte indício da viabilidade da expansão das ações de ATER, principalmente considerando que apenas 17% dos agricultores familiares foram assistidos por tais serviços em 2014. A expansão da política, associada às análises sistêmicas para seu constante aperfeiçoamento, é, portanto, um caminho promissor para o desenvolvimento econômico da agricultura familiar no Brasil.
creator: Adauto Brasilino Rocha Junior, Raniella Orquiza da Silva, Waldemiro Peterle Neto, Cristiana Tristão Rodrigues
source: Revista de Economia e Sociologia Rural
publisher: Sociedade Brasileira de Economia e Sociologia Rural
date: 2020
relation: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032020000200205&tlng=pt
coverage: Agriculture (General)

Gestión de ecosistemas de agricultura orgánica en tiempos de Covid-19
subject: Agricultura orgânica, Buenas Prácticas, Ecoagricultura, Gestión
description: El presente estudio tiene como objetivos identificar los factores que influyen en la gestión del ecosistema de la agricultura orgánica durante la pandemia del Covid-19, conocer algunas buenas prácticas, determinar las características del Sistema Interno de Control (SIC). La metodología empleada fue la revisión sistemática, descriptiva, de fuentes secundarias de información. Los resultados evidencian un alto interés por promover la ecoagricultura en el contexto público y privado en respuesta a las actuales carencias alimenticias surgidas por las limitaciones de diversas índoles causadas por la pandemia. Las conclusiones muestran que la gestión de los ecosistemas se vio afectada debido a la pandemia, las dificultades en contar con el personal capacitado para rotar los cultivos y ofrecer los productos en el mercado, debido a las restricciones sanitarias surgidas. Además, los productores presentaron su percepción indicando que las medidas tomadas se debieron ejecutar hace tiempo y no debido a la crisis sanitaria, promueven que las normativas sigan a largo plazo por la disminución de los niveles de CO2.
creator: Adderly Mamani-Flores, David Eleazar Barra-Quispe, Tania Laura Barra-Quispe
source: Revista Venezolana de Gerencia
publisher: Universidad del Zulia
date: 2022
relation: https://produccioncientificaluz.org/index.php/rvg/article/view/37526
coverage: Business, Commerce

Design, Synthesis and Docking Studies of Flavokawain B Type Chalcones and Their Cytotoxic Effects on MCF-7 and MDA-MB-231 Cell Lines
subject: chalcone synthesis, breast cancer cell lines, SARS, anticancer, flavokawain B derivatives
description: Flavokawain B (1) is a natural chalcone extracted from the roots of Piper methysticum, and has been proven to be a potential cytotoxic compound. Using the partial structure of flavokawain B (FKB), about 23 analogs have been synthesized. Among them, compounds 8, 13 and 23 were found in new FKB derivatives. All compounds were evaluated for their cytotoxic properties against two breast cancer cell lines, MCF-7 and MDA-MB-231, thus establishing the structure–activity relationship. The FKB derivatives 16 (IC50 = 6.50 ± 0.40 and 4.12 ± 0.20 μg/mL), 15 (IC50 = 5.50 ± 0.35 and 6.50 ± 1.40 μg/mL) and 13 (IC50 = 7.12 ± 0.80 and 4.04 ± 0.30 μg/mL) exhibited potential cytotoxic effects on the MCF-7 and MDA-MB-231 cell lines. However, the methoxy group substituted in position three and four in compound 2 (IC50 = 8.90 ± 0.60 and 6.80 ± 0.35 μg/mL) and 22 (IC50 = 8.80 ± 0.35 and 14.16 ± 1.10 μg/mL) exhibited good cytotoxicity. The lead compound FKB (1) showed potential cytotoxicity (IC50 = 7.70 ± 0.30 and 5.90 ± 0.30 μg/mL) against two proposed breast cancer cell lines. It is evident that the FKB skeleton is unique for anticancer agents, additionally, the presence of halogens (Cl and F) in position 2 and 3 also improved the cytotoxicity in FKB series. These findings could help to improve the future drug discovery process to treat breast cancer. A molecular dynamics study of active compounds revealed stable interactions within the active site of Janus kinase. The structures of all compounds were determined by 1H-NMR, EI-MS, IR and UV and X-ray crystallographic spectroscopy techniques.
creator: Addila Abu Bakar, Muhammad Nadeem Akhtar, Norlaily Mohd Ali, Swee Keong Yeap, Ching Kheng Quah, Wan-Sin Loh, Noorjahan Banu Alitheen, Seema Zareen, Zaheer Ul-Haq, Syed Adnan Ali Shah
source: Molecules
publisher: MDPI AG
date: 2018
language: EN
identifier: DOI: 10.3390/molecules23030616
coverage: Organic chemistry

THE ROLE OF CHLOROQUINE AND PSYCHOSOCIAL SUPPORT IN A PATIENT WITH COVID-19: A CASE REPORT IN INDONESIA
subject: coronavirus, covid-19, chloroquine, Indonesia, oseltamivir, Psychosocial Support
description: Background: COVID-19 is caused by the 2019 novel coronavirus (2019nCoV) which was identified on 7 January 2020 by the Chinese Center for Disease Control and Prevention (CDC) from the throat swab sample of a patient. This novel coronavirus is phylogenetically similar to the severe acute respiratory syndrome coronavirus (SARS-CoV) that caused SARS outbreak in 2002.Objective: To describe a case of a COVID -19 patient in a hospital in Indonesia. Case Report: A 55-year-old male was admitted to the Emergency Department of Arifin Achmad Hospital on 31 March 2020. He was transferred from a private hospital after three days of hospitalization. Previously, he came to another hospital complaining palpitation, cough, having difficulty of breathing, and intermittent fever. He then was advised to be admitted and tested for a COVID-19 test. At first, he did not admit to having traveled recently. After three days, the pharyngeal swab test was received confirming that he was contracted with COVID-19. The patient was then transferred to our hospital and hospitalized for ten days. Discussion: The patient was fully recovered after ten days of treatment with antiviral drug namely Oseltamivir 75 mg orally twice a day and chloroquine phosphate 500 mg twice a day orally. The combination of both drugs showed an immune-modulating activity which might increase its antiviral effects. Therefore, the use of this agent in COVID-19 patients might be worthwhile. During hospitalization, reducing patient anxiety was also one of our main goals as many studies has found that anxiety is associated with poor immune system.Conclusion: This case report demonstrated the current situation in Indonesia where people become reluctant to fully disclose their symptoms or travel history to the health care workers, which may put many others on the risk of being transmitted with the virus. Although the proven efficacy of chloroquine is still lacking, it has become the favorable choice at this moment as indicated in …
creator: Ade Dilaruri, Ira Rahmawati
source: Belitung Nursing Journal
publisher: Belitung Raya Foundation
date: 2020
coverage: Nursing

Examining the Predictors of Resilience and Work Engagement during the COVID-19 Pandemic
subject: resilience, covid-19 pandemic, Social support, work engagement, Self-Efficacy, conservation of resources
description: Previous studies have acknowledged the importance of resilience in enabling individuals to cope and bounce back from crises and unexpected situations like the COVID-19 pandemic. Thus, this study advances conservation of resources theory by investigating the job, social, and personal resources underlying employees’ resilience, and the impact of resilience in stimulating job engagement amid the COVID-19 pandemic. The model was tested using data collected from 259 employees in Malaysia. Results of path modeling analysis revealed significant impacts of self-efficacy, facilitating conditions, and family and friends’ support on employees’ resilience. Besides, resilience was significantly associated with job engagement. Our findings suggest that management concerns for employees may not enhance employees’ resilience amid the COVID-19 pandemic. Nevertheless, management could stimulate their employees’ resilience by providing them with the flexibility to spend quality time with their loved ones and adequate support for enabling working conditions.
creator: Adedapo Oluwaseyi Ojo, Olawole Fawehinmi, Mohd Yusoff Yusliza
source: Biotemas
publisher: Universidade Federal de Santa Catarina
date: 2021
coverage: Environmental effects of industries and plants, Renewable energy sources, Environmental sciences