18 research outputs found

    Eruption of the lupine tooth in horses thoroughbred and campolina

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    Nos equinos, os primeiros dentes pré-molares da arcada superior, ou dentes lupinos, são pequenos e caracteristicamente vestigiais, mostram-se posicionados imediatamente mesiais à raiz do primeiro dente molar superior, não atuam funcionalmente na mastigação e podem ainda provocar dor no animal. Foram avaliados 63 animais da raça Campolina e 58 da raça Puro Sangue Inglês quanto à presença ou não de dente lupino. Os dados encontrados mostraram que 42,86% dos animais da raça Campolina apresentaram dente lupino, assim como 3,45% da raça Puro Sangue Inglês. A frequência variável encontrada revela que a presença deste dente é uma característica particular e individual dos animais. Foi possível observar através da aplicação do teste exato de Fisher (p_0,05) que entre os equinos das raças PSI e Campolina ocorreu diferença significativa (p_0,0001). De outra forma, para cada uma das raças a ocorrência da presença deste dente entre os sexos não foi observada diferença PSI (p_0,496) e Campolina (p_0,083). _________________________________________________________________________________ ABSTRACTIn horses, the first premolar teeth of the upper arch, or wolf teeth are small and characteristically vestigial, appear positioned immediately mesial to the root of the first molar tooth, do not act functionally in chewing and can also cause pain in animals. There were evaluated 63 animals of Campolina breed and 58 of Thoroughbred in relation to the presence or absence of wolf teeth. The findings showed that 42.86% of the Campolina horses presented wolf teeth, as well as 3.45% of the Thoroughbred. The variable frequency found discloses that the presence of this tooth is a particular and individual feature of animals. It was observed by applying the Fisher’s test (p<0.05) that among equine breeds Thoroughbred and Campolina, there was significant difference (p<0.0001). Otherwise for each of the breeds the occurrence of presence of this tooth among the genders was not observed Thoroughbred (p_0.496) and Campolina (p_0.083)

    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

    Get PDF

    Pervasive gaps in Amazonian ecological research

    Get PDF
    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

    MEDICINA TRADICIONAL E COVID-19 NO BRASIL

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    Covid-19 pelo novo coronavírus (Sars-CoV-2), declarada como pandemia pela OMS, tem configurado uma crise humanitária pela alta transmissibilidade e impacto social e econômico. O estudo registra o uso das plantas medicinais utilizadas para prevenção/tratamento da Covid-19. De cunho etnobotânico e com aplicação de questionário online para pessoas com idade igual ou maior de 18 anos. Um total de 102 pessoas, (52,9%) feminino. A maioria reside em zona urbana (95,1%). A idade variou de 20 a 79 anos. A maioria possui pós-graduação (51%), seguido de graduação (35,3%), ensino médio completo (9,5%). À religião (74,5%) refere-se adepto de religião e 58,8% (casado). A naturalidade destaca Espírito Santo, Rio Grande do Sul, São Paulo, Maranhão, Goiás, Paraná, Santa Catarina, Mato Grosso, Amazonas e Mato Grosso do Sul. Total de 57 espécies mencionado para prevenção/tratamento. Nativas (72,4%), Exóticas (27,6%). As famílias expressivas Asteraceae e Fabaceae. O número variou de uma planta (16,7%) e nove plantas (4,9%). Erva (44,8%), arbusto (22,4%), seguido de árvore e cipó (23,8% cada uma) e o restante entre epífita e rasteira. Folha (46,2%), fruto (12,9%), flores (2,2%), semente (4,3%), casca (8,6%), raiz (11,8%), caule ou galho (12,9). Indicações defesa do corpo (85,5%), tosse (20,7%), dor de garganta (19%), dores musculares e corporais (17,2%) etc. Chá (63,8%), suco (32,8%), infusão (27,6%), fruto e semente in natura (8,6%), decocção, xarope, maceração e banhos (6,9% cada uma), ingestão do óleo (3,4%) e no chimarrão (1,7%). As práticas em saúde básica domiciliar revelam o uso de plantas medicinais nas regiões Centro-Oeste, Sul, Sudeste e Nordeste do Brasil

    Hydrogenated amorphous silicon films deposited by electron cyclotron resonance chemical vapor deposition at room temperature with different radio frequency chuck powers

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    In this work, we present the morphological and electrical characterization of hydrogenated amorphous silicon-films, which were deposited at room temperature on a n(+)-type silicon substrate using the electron cyclotron resonance chemical vapor deposition (ECR-CVD) technique. To study the hydrogen incorporation into the films, radio-frequency (RF) chuck powers of 1 W, 3W and 5W in the silicon substrates were applied during the ECR-CVD depositions. The deposited films were p(+) doped using boron ion implantation (B+ I/I) and annealed at 1273 K, using a Rapid Thermal Annealing (RTA) process for dopant activation. The hydrogen concentration, the crystalline level, the surface roughness were obtained by, respectively, Fourier-transform infrared spectroscopy of the as-deposited films; Raman spectroscopy and atomic force microscopy of the films, after the B+ I/I and RTA. The Fourier-transform infrared and Raman spectra were deconvoluted as gaussian curves to extract the molecular bond concentration between silicon and hydrogen and their vibrational modes, respectively. These analyses indicated that: the H concentration is reduced with the increase of RF chuck powers, and, the films changed from totally amorphous to partially crystalline, respectively, when are compared the structures, before and after the B+ I/I and RTA. Diodes with three p(+) a-Si/n(++)c-Si structures were fabricated with aluminun electrodes and current-voltage curves were extracted, indicating that the devices, with films deposited with 5 W, presented the best results, with ideality factor of 1.169

    Platinosomiasis in Cuxiú (Chiropotes Satanas Utahicki)

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    Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia. Pós-Graduação em Anatomia dos Animais Domésticos e Silvestres. São Paulo, SP, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Centro Nacional de Primatas. Ananindeua, PA, Brasil.Universidade Federal Rural da Amazônia. Instituto de Saúde e Produção Animal. Belém, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Centro Nacional de Primatas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Centro Nacional de Primatas. Ananindeua, PA, Brasil.No presente trabalho relata-se a ocorrência do Platynosomum illiciens em um primata não humano da espécie Chiropotes satanas utahicki mantido em cativeiro pelo Centro Nacional de Primatas (CENP) em Ananindeua-PA. O animal foi submetido a uma avaliação clínica, sanguínea, parasitológica e ultrassonográfica nas quais foi constatada a presença de diarreia e discreta inapetência, alterações significativas nas amostras séricas hepáticas, observação de ovos compatíveis com Platynosomum illiciens ao exame de sedimentação e a presença de massa vegetativa no interior da vesícula biliar, bem como espessamento e dilatação da parede da mesma. Deste modo, sugere-se a inclusão da platinosomíase como diagnóstico diferencial em casos de doenças hepáticas, principalmente quando aliadas a condições favoráveis como regiões tropicais e recintos em torno de matas nativas, ressaltando-se a importância de se investigar a epidemiologia e a relevância desta enfermidade na conservação e medicina de primatas
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