146 research outputs found
Implantação e ativação de viveiro na comunidade Água Boa 2, município de Rio Pardo de Minas, MG.
Resumo - A evasão sazonal de filhos de agricultores é um evento frequente na comunidade de Água Boa 2 na busca de trabalho fora do município de Rio Pardo de Minas, como colhedores de café no Sul de Minas e no Estado de São Paulo ou em eucaliptais na própria região. Tendo uma área de cultivo de cerca de três hectares, a agricultura não é mais suficiente para gerar alimento e sustento da família, obrigando a busca de outras fontes de renda. O extrativismo de fibras, frutos, artesanato, além do carvão vegetal é também uma alternativa de renda. Algumas mulheres preferem não ter entes da família afastados por meses para trabalhar, enquanto outras acompanham os maridos com seus filhos para o trabalho em outras regiões a fim de reforçar a renda familiar, no período de maio a agosto. A renda certa é ensejada por jovens também, para aquisição de bens como celular, eletro-portátil ou moto, notando que oportunidades são restritas quando permanecem na comunidade, comercializando os produtos da roça ou do extrativismo ou como assalariado local. Este relato trata do início da construção do segundo viveiro em março de 2012 e de sua ativação em janeiro de 2014 como uma alternativa de emprego e renda que a comunidade vislumbrou, planejou e se capacitou a partir de 2007. O primeiro viveiro construído com recurso de doação de bazares, com o objetivo de obter renda, produzir mudas para reflorestar nascentes e obter mudas para plantio nos quintais, foi inativado devido insegurança, falta de registro e de responsável técnico. As dificuldades de instalação de um sistema de abastecimento de água para irrigação foi, dentre outras, a causa do atraso na ativação do segundo viveiro e do grupo de jovens. Por outro lado, em meio às dificuldades e entraves, a comunidade vem crescendo e sendo fortalecido pelo movimento de união em defesa da nascente. Abstract - The seasonal evasion of farmers? sons is a frequent event within the Community of Agua Boa 2, seeking for job outside the municipality of Rio Pardo de Minas, as, coffee harvesters in the South of Minas Gerais and São Paulo State or eucalyptus plantation. Having about three hectares for cultivation area, agriculture is not enough for feeding and supporting the family, forcing to search for other means for their income. The extraction of fiber, fruits, handicrafts, besides charcoal from native vegetation is also an alternative for survival. Some women prefer not to have ones from the family away for months to work, while others follow their husbands with their children to work in other regions to reinforce family income during the period May to August. An assured income is also desired by young people to purchase goods such as mobile phones, portable devices or motorcycles, noting that opportunities are scarce by staying in the community, selling the products from the country or extractivism, or as a local employee. This report deals with the start of construction of the second nursery in March 2012 and its activation in January 2014 as an alternative employment and income that the community glimpsed, planned and trained since 2007. The first nursery built using donations of bazaars, with the aim to earn an income, produce seedlings for reforestation springs and get seedlings for planting in backyards, was inactivated due to insecurity, lack of registration and technical officer. The problem of installing a system of water supply for irrigation was, among others, the cause of the delay in the activation of the second nursery and the youth group. On the other hand, in the midst of difficulties and obstacles, the community is growing and being strengthened by the union movement in defense of the springs
Intercâmbio de experiências e levantamento de demandas ergonômicas em unidades de beneficiamento de frutos do cerrado, mandioca e café em comunidades do Norte de Minas Gerais.
Este relato descreve a experiência realizada por meio de uma parceria entre o Projeto Rio Pardo, da Embrapa Cerrados e a Escola Politécnica/USP, visando inserir a questão do trabalho agrícola familiar nas ações desenvolvidas junto aos agricultores de três comunidades de Rio Pardo de Minas/MG, produtoras de frutos do cerrado, goma/farinha de mandioca e café sombreado. O objetivo foi levantar possíveis demandas ergonômicas existentes nestas unidades de produção, que estão implantando agroindústrias familiares para realizar o beneficiamento da produção. As demandas relacionam-se a problemas com a produção, a organização do trabalho e a saúde dos trabalhadores. Percebe-se a coexistência do saber tradicional, transmitido entre gerações, com a inovação em termos de maquinário e instalações. Há diversos arranjos produtivos presentes, fruto da criatividade e sabedoria aplicada dos agricultores. Estas inovações podem ser o embrião de projetos futuros de novos maquinários e arranjos produtivos. Trata-se de fazer comunicar dois saberes, dos projetistas e dos usuários, contribuindo para que estes últimos possam ser empoderados no papel de criadores de inovações, contribuindo para a incorporação de aspectos ergonômicos na evolução dos equipamentos e instalações. Abstract: This report describes the experience carried out through a partnership between Project ? Rio Pardo ?, Embrapa Cerrados/DF and the Polytechnic School of USP, in order to put the issue of family farm labor in the actions developed by farmers in three communities of Rio Pardo de Minas, north of Minas Gerais. The main products are fruits of the cerrado, cassava starch and manioc flour and shaded coffee. The initial goal was to raise possible these existing ergonomic demands of family farming units, which are in the process of implementation of family agri-industries to undertake the processing and beneficiation production. The ergonomic demands are related to production problems with the organization of work and the health of farm workers. In preliminary analyzes, it was possible to perceive the coexistence of traditional knowledge transmitted between generations, with innovation in terms of machinery and facilities. There are several productive arrangements, result of creativity and knowledge of farmers. These innovations, developed by who performs the work, may be the starting point for future designs of new machinery and productive arrangements. It could demonstrated the importance of communication between two knowledge, from the designers and from the users (farmers), contributing to the latter to be empowered in their role as creators of innovation and contributing to the incorporation of ergonomic aspects in the context of setting up their equipment
Variation of the ichthyofauna along the Goioerê River: an important tributary of the Piquiri-Paraná basin
Preclinical pharmacokinetics and biodistribution of anticancer dinuclear Palladium(II)-Spermine Complex (Pd2Spm) in mice
Palladium-based compounds are regarded as potential analogs to platinum anticancer drugs with improved properties. The present study assessed the pharmacokinetics and biodistribution of a dinuclear palladium(II)-spermine chelate (Pd2Spm), which has previously been shown to possess promising in vitro activity against several therapy-resistant cancers. Using inductively coupled plasma-mass spectrometry, the kinetic profiles of palladium/platinum in serum, serum ultrafiltrate and tissues (kidney, liver, brain, heart, lungs, ovaries, adipose tissue and mammary glands) were studied in healthy female Balb/c mice after a single intraperitoneal bolus injection of Pd2Spm (3 mg/kg bw) or cisplatin (3.5 mg/kg bw) between 0.5 and 48 h post-injection. Palladium in serum exhibited biphasic kinetics with a terminal half-life of 20.7 h, while the free palladium in serum ultrafiltrate showed a higher terminal half-life than platinum (35.5 versus 31.5 h). Palladium was distributed throughout most of the tissues except for the brain, with the highest values in the kidney, followed by the liver, lungs, ovaries, adipose tissue and mammary glands. The in vitro cellular accumulation was also evaluated in breast cancer cells, evidencing a passive diffusion as a mechanism of Pd2Spm’s cellular entry. This study reports, for the first time, the favorable pharmacokinetics and biodistribution of Pd2Spm, which may become a promising pharmacological agent for cancer treatmentinfo:eu-repo/semantics/publishedVersio
The effect of structural enrichment in hatchery tanks on the morphology of two neotropical fish species
How students perceive medical competences: a cross-cultural study between the Medical Course in Portugal and African Portuguese Speaking Countries
<p>Abstract</p> <p>Background</p> <p>A global effort has been made in the last years to establish a set of core competences that define the essential professional competence of a physician. Regardless of the environment, culture or medical education conditions, a set of core competences is required for medical practice worldwide. Evaluation of educational program is always needed to assure the best training for medical students and ultimately best care for patients. The aim of this study was to determine in what extent medical students in Portugal and Portuguese speaking African countries, felt they have acquired the core competences to start their clinical practice. For this reason, it was created a measurement tool to evaluate self-perceived competences, in different domains, across Portuguese and Portuguese-speaking African medical schools.</p> <p>Methods</p> <p>The information was collected through a questionnaire that defines the knowledge, attitudes and skills that future doctors should acquire. The Cronbach's Alpha and Principal Components Analysis (PCA) were used to evaluate the reliability of the questionnaire. In order to remove possible confounding effect, individual scores were standardized by country.</p> <p>Results</p> <p>The order of the domain's scores was similar between countries. After standardization, Personal Attitudes and Professional Behavior showed median scores above the country global median and Knowledge alone showed median score below the country global median. In Portugal, Clinical Skills showed score below the global median. In Angola, Clinical Skills and General Skills showed a similar result. There were only significant differences between countries in Personal Attitudes (p < 0.001) and Professional Behavior (p = 0.043).</p> <p>Conclusions</p> <p>The reliability of the instrument in Portuguese and Portuguese-speaking African medical schools was confirmed. Students have perceived their level of competence in personal attitudes in a high level and in opposite, knowledge and clinical skills with some weaknesses.</p
The effect of an extract from Ganoderma lucidum (reishi) on the labeling of blood constituents with technetium-99m and on the survival of Escherichia coli
This study evaluated effects of an aqueous extract of Ganoderma lucidum (reishi) on the labeling of blood constituents with technetium-99m (99mTc) and on the survival of cultures of Escherichia coli treated with stannous chloride. Blood samples from Wistar rats were treated with reishi extract, radiolabeling procedure was performed, plasma (P), blood cells (BC) and insoluble (IF) and soluble (SF) fractions of P and BC were separated. The radioactivity was counted for the determination of the percentages of radioactivity (%ATI). Cultures of Escherichia coli AB1157 were treated with stannous chloride in the presence and absence of reishi extract. Blood samples and bacterial cultures treated with NaCl 0.9% were used as controls. Data indicated that reishi extract altered significantly (p99mTc and protecting bacterial cultures against oxidative damage induced by stannous chloride
Commercial fisheries in a mega unregulated floodplain river: assessment of the most favourable hydrological conditions for its preservation
This paper deals with the hydrological variability effects on the primary commercial fish species inhabiting the main channel and the floodplain of the large Paraná River in its middle reaches in Argentina. Analysing more than eight decades (1935–2016) of information on the most frequent and abundant commercial species in conjunction with hydrological levels and temperature, our results show that spring–summer floods of a certain magnitude (c. 6 m) and durations (> 80 days) are crucial for sustaining commercial fisheries. Moreover, the frequency of these floods was modulated by the decadal climatic fluctuations that have occurred over the past 100 years in the Paraná Basin. An insight into the probable incidence of some anthropogenic influences is also provided.Fil: Rabuffetti, Ana Pia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Espínola, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Abrial, Elie. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Amsler, Mario Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Blettler, Martin Cesar Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Eurich, María Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Eberle Folmer, Eliana Gisel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentin
Structure and integrity of fish assemblages in streams associated to conservation units in Central Brazil
Spatial, seasonal and ontogenetic changes in food resource use by a piscivore fish in two Pantanal lagoons, Brazil
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