37 research outputs found

    Chemical and organic fertilization in development of native species used in slope recovery / Adubação química e orgânica no desenvolvimento de espécies nativas utilizadas na recuperação de taludes

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    The aim of the study was to evaluate the development of Senna spp. and Solanum palinacanthum used in initial process of slope recovery with application of chemical and organic fertilizer. The experimental area is located on Universidade Federal Rural da Amazônia in Parauapebas city, Brazil, the experimental design was completely randomized with three treatments, as specified: Control (without fertilization), organic fertilization (goat manure mixed with palm residue) and chemical fertilization with NPK (04:30:10), with three replications, totalizing nine compound plots. The experimental data were subjected to analysis of variance, by the Tukey and Wilcoxon tests, at 5% probability. The percentage of seedling emergence was higher than 70%, in which the chemical fertilizer promoted a greater increase in growth and initial development of Senna spp. and Solanum palinacanthum, with higher values of height and diameter compared to plants treated with organic fertilizer.The aim of the study was to evaluate the development of Senna spp. and Solanum palinacanthum used in initial process of slope recovery with application of chemical and organic fertilizer. The experimental area is located on Universidade Federal Rural da Amazônia in Parauapebas city, Brazil, the experimental design was completely randomized with three treatments, as specified: Control (without fertilization), organic fertilization (goat manure mixed with palm residue) and chemical fertilization with NPK (04:30:10), with three replications, totalizing nine compound plots. The experimental data were subjected to analysis of variance, by the Tukey and Wilcoxon tests, at 5% probability. The percentage of seedling emergence was higher than 70%, in which the chemical fertilizer promoted a greater increase in growth and initial development of Senna spp. and Solanum palinacanthum, with higher values of height and diameter compared to plants treated with organic fertilizer

    Comportamento de leitões na fase de creche submetidos ao enriquecimento ambiental

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    Environmental enrichment consists of the enhancement of facilities by means of the necessary environmental stimuli to achieve animal welfare in psychical, physiological, and to improve quality of life conditions. In recent years welfare has been turning into one of the biggest challenges for modern production systems. There is a great pressure from civil society and international market claiming for production systems to respect animal welfare. This increases the need for studies that generate knowledge on how to raise pigs in order to ensure the profitability of the system and the maintenance of the quality of life for these animals. Therefore, the aim of this study was to evaluate the behavior of piglets in nursery phase subjected to environmental enrichment. A total of 12 pigs in the nursery phase were distributed into two treatments (with and without environmental enrichment). The following behaviors were evaluated: standing, laying, exploring, smelling, drinking, eating, idling, digging, defecating, urinating, sitting, walking, vocalizing, biting, playing, and fighting. Piglet behavior was recorded every 10 minutes during six days. Significant differences (p<0.05) between treatments were found for playing, eating and biting. No significant differences (p>0.05) were found for fighting behavior regarding the treatments, days and animals. Animal behavior was affected by the presence of environmental enrichment, which decreased some undesirable behaviors in production systems.O enriquecimento ambiental constitui no aperfeiçoamento das instalações na forma de estímulos ambientais necessários para alcançar o bem-estar dos animais nas condições psíquico, fisiológico e melhor qualidade de vida. Nos últimos anos, o bem-estar animal vem se tornando um dos maiores desafios para os modernos sistemas de produção. A pressão da sociedade e do mercado internacional para que os sistemas de produção respeitem o bem-estar animal, aumenta a necessidade de pesquisas que possam gerar conhecimentos sobre possíveis formas de se produzir suínos garantindo a lucratividade do sistema em combinação com a manutenção da qualidade de vida dos mesmos. Sendo assim, objetivou-se com este estudo avaliar o comportamento de leitões na fase de creche submetidos a enriquecimento ambiental. Foram utilizados 12 suínos na fase de creche, distribuídos em dois tratamentos, com presença e ausência de enriquecimento ambiental. Para avaliação das variáveis comportamentais foram observadas as seguintes características: em pé, deitado, explorando, cheirando, bebendo, comendo, ócio, fuçando, defecando, urinando, sentado, andando, vocalizando, mordendo, brincando e brigando. As observações foram realizadas a cada 10 minutos durante seis dias. Houve diferença significativa (p<0,05) para os comportamentos brincando, comendo e mordendo em relação aos tratamentos avaliados. Não houve diferença significativa (p>0,05) para o comportamento brigando em relação aos tratamentos, dias e animais. O comportamento dos animais foi influenciado pela presença do enriquecimento ambiental, em que o mesmo proporcionou a diminuição de alguns comportamentos indesejáveis nos sistemas de produção

    Anticorpo monoclonal no manejo da cefaleia em salvas: Monoclonal antibody in the management of cluster headache

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    Introdução: A cefaleia em salvas (CS) é caracterizada por uma dor de cabeça intensa em apenas um lado da cabeça, que surge em crises. Não há cura para a CS e o seu tratamento consiste em minimizar a dor e diminuir a frequência das crises. Nesse cenário, que surge a investigação de maneiras eficazes para promover esse tratamento, entre eles o anticorpo monoclonal. Objetivo: Mostrar o que estudos recentes sobre o emprego de anticorpo monoclonal para esse fim têm trazido sobre sua segurança e eficácia. Metodologia: Trata-se de uma revisão sistemática da literatura realizada nos bancos de dados PubMed e BVS, com: “(Cluster Headache OR Headache Disorders) AND Antibodies, Monoclonal”. Excluiu-se os artigos que não se enquadravam nos objetivos. Resultados e Discussão: Grande parte dos estudos mostrou uma melhora significativa na frequência das crises, enquanto o uso para diminuir foi inconclusivo em quase todos estudos, principalmente quando usado a longo prazo, mas apesar disso, foi considerada uma opção segura para uso. Conclusão: É um tema ainda novo e com poucos estudos, principalmente de longos prazos, que diverge sobre a eficácia na redução da dor durante as crises, mas tende a convergir sobre a eficiência para redução dos intervalos das crises

    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

    Pervasive gaps in Amazonian ecological research

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    Photography-based taxonomy is inadequate, unnecessary, and potentially harmful for biological sciences

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    The question whether taxonomic descriptions naming new animal species without type specimen(s) deposited in collections should be accepted for publication by scientific journals and allowed by the Code has already been discussed in Zootaxa (Dubois & Nemésio 2007; Donegan 2008, 2009; Nemésio 2009a–b; Dubois 2009; Gentile & Snell 2009; Minelli 2009; Cianferoni & Bartolozzi 2016; Amorim et al. 2016). This question was again raised in a letter supported by 35 signatories published in the journal Nature (Pape et al. 2016) on 15 September 2016. On 25 September 2016, the following rebuttal (strictly limited to 300 words as per the editorial rules of Nature) was submitted to Nature, which on 18 October 2016 refused to publish it. As we think this problem is a very important one for zoological taxonomy, this text is published here exactly as submitted to Nature, followed by the list of the 493 taxonomists and collection-based researchers who signed it in the short time span from 20 September to 6 October 2016

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

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    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

    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 understanding 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,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 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 underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities 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 organism 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 neglected 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 lost

    ATLANTIC EPIPHYTES: a data set of vascular and non-vascular epiphyte plants and lichens from the Atlantic Forest

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    Epiphytes are hyper-diverse and one of the frequently undervalued life forms in plant surveys and biodiversity inventories. Epiphytes of the Atlantic Forest, one of the most endangered ecosystems in the world, have high endemism and radiated recently in the Pliocene. We aimed to (1) compile an extensive Atlantic Forest data set on vascular, non-vascular plants (including hemiepiphytes), and lichen epiphyte species occurrence and abundance; (2) describe the epiphyte distribution in the Atlantic Forest, in order to indicate future sampling efforts. Our work presents the first epiphyte data set with information on abundance and occurrence of epiphyte phorophyte species. All data compiled here come from three main sources provided by the authors: published sources (comprising peer-reviewed articles, books, and theses), unpublished data, and herbarium data. We compiled a data set composed of 2,095 species, from 89,270 holo/hemiepiphyte records, in the Atlantic Forest of Brazil, Argentina, Paraguay, and Uruguay, recorded from 1824 to early 2018. Most of the records were from qualitative data (occurrence only, 88%), well distributed throughout the Atlantic Forest. For quantitative records, the most common sampling method was individual trees (71%), followed by plot sampling (19%), and transect sampling (10%). Angiosperms (81%) were the most frequently registered group, and Bromeliaceae and Orchidaceae were the families with the greatest number of records (27,272 and 21,945, respectively). Ferns and Lycophytes presented fewer records than Angiosperms, and Polypodiaceae were the most recorded family, and more concentrated in the Southern and Southeastern regions. Data on non-vascular plants and lichens were scarce, with a few disjunct records concentrated in the Northeastern region of the Atlantic Forest. For all non-vascular plant records, Lejeuneaceae, a family of liverworts, was the most recorded family. We hope that our effort to organize scattered epiphyte data help advance the knowledge of epiphyte ecology, as well as our understanding of macroecological and biogeographical patterns in the Atlantic Forest. No copyright restrictions are associated with the data set. Please cite this Ecology Data Paper if the data are used in publication and teaching events. © 2019 The Authors. Ecology © 2019 The Ecological Society of Americ
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