22,114 research outputs found
Mazama bororo Duarte 1996
No full text49. Small Red Brocket Mazama bororo French: Mazame de Sao Paulo / German: Kiistenwald-Mazama / Spanish: Corzuela bororo Taxonomy. Mazama bororo Duarte, 1996, Capao Bonito, Sao Paulo (Brazil). This species is monotypic. Distribution. E Brazil (SE Sao Paulo State & NE Parana State), the smallest distribution of any Neotropical deer species. Descriptive notes. Head-body 85 cm, tail estimated 11-14 cm, shoulder height 50-60 cm; weight 25 kg. It is a mediumsized brocket. The coat is mainly reddish, with a grayish neck. The base of the ear, the chin, the throat, and the belly are whitish. The hindlegs are blackish from the calcaneus to the hoof. The diploid number of chromosomes is 32. Habitat. It lives in the remaining fragments of the Serra do Mar coastal Atlantic forest, from the coast up to 1200 m above sea level. Food and Feeding. It feeds mainly on fruits, leaves, and sprouts. Breeding. Mating may occur throughout the year. Most births occur between August and September, at the end of winter. Activity patterns. It is crepuscular and nocturnal. Movements, Home range and Social organization. Females seem to have home ranges of 10-50 ha. It is a solitary deer. Status and Conservation. Classified as Vulnerable on The IUCN Red List. Habitat fragmentation and destruction are the main threats. The total population has been assessed at about 4500 individuals. Bibliography. Duarte & Jorge (2003), Duarte et al. (2008), Vogliotti & Duarte (2010).Published as part of Don E. Wilson & Russell A. Mittermeier, 2011, Cervidae, pp. 350-443 in Handbook of the Mammals of the World – Volume 2 Hoofed Mammals, Barcelona :Lynx Edicions on page 442, DOI: 10.5281/zenodo.651437
The politics and economics of regulatory impact assessment
No full textThis is the author accepted manuscript. The final version is available from the publisher via the link in this record
Sedimentation of organic matter from fish farms in oligotrophic Mediterranean assessed through bulk and stable isotope (δ13C and δ15N) analyses
No full textEstudo comparativo da clonidina com a dexmedetomidina para a sedação do paciente crítico sob ventilação mecânica
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-Graduação em Ciências MédicasObjetivo: Comparar a segurança e efetividade da clonidina com a dexmedetomidina para a sedação de pacientes críticos. Estabelecer a relação entre essas duas drogas e o desenvolvimento de Delirium bem como seu impacto no sistema imune. Método: Ensaio clínico, aberto, randomizado, aprovado pela Comissão de Ética da Instituição. Foram analisados pacientes que necessitassem de ventilação mecânica por um período mínimo de 24 horas, sem doença neurológica prévia, hipotensão ou bradiarritmia. A segurança dos fármacos foi avaliada pelo seu impacto nos níveis de pressão arterial média (PAM) e freqüência cardíaca (FC). CAM-ICU e níveis de cortisol foram avaliados no começo e 24hs após o início da infusão para mensurar impacto no Delirium e no sistema imune. A efetividade foi analisada pelo tempo em que os pacientes mantiveram-se sob sedação ideal (Ramsay2/4, RASS-3/+1). Para análise estatística foram utilizados os testes t de Student e ?2 (significante p?0,05). Resultados: Foram avaliados 29 pacientes, 14 receberam clonidina (G1) e 15 dexmedetomidina (G2). As características clínicas e demográficas foram semelhantes nesses grupos. A dose média administrada de clonidina foi 0,82µg/kg/h e de dexmedetomidina foi 0,62µg/kg/h. As duas drogas causaram redução na PAM e FC, com exceção da PAM na sexta e vigésima quarta hora do G2. Houve uma tendência que os pacientes do G2 permanecessem mais tempo com sedação ideal (Rass: G1=58,5%, G2=71,9%, Ramsay: G1=54,7%, G2=68,4%) (p=NS). Os níveis de cortisol embora elevados nos dois grupos, não sofreram variação significativa após 24hs de infusão das drogas (G1:34,0/35,2µg/dL, G2:40,9/62,0µg/dL). Houve uma tendência de que Delirium fosse mais freqüentemente diagnosticado no G2 ao final do protocolo (28,6% vs. 45,5% p=NS). Conclusão: A dexmedetomidina e a clonidina mostraram-se efetivas e seguras para a sedação dos pacientes críticos sob ventilação mecânica deste estudo
Phase Distribution Efficiency of cm-Scale Ultrasonically Powered Receivers
No full textIn the domain of ultrasonically powered biomedical implants, there is an increasing interest in cm-scale ultrasonic receivers (RX). However, when a single-element transducer is used as the RX transducer, an uneven phase distribution across the RX area can significantly reduce the harvestable power. In this paper, we investigate the impact of lateral and angular misalignment on the acoustic field phase distribution across the RX surface. We show that, for a single-element RX transducer, lateral misalignment has minimal effect on the harvestable power, whereas even small angular misalignments can cause a considerable reduction, especially for larger RX sizes. We present a potential solution that consists of subdividing a large RX transducer (e.g. 20 × 20mm2) into smaller elements, which significantly improves power transfer efficiency by taking advantage of the smaller phase variation across the surface of each element. The trade-offs between achieving a minimum acceptable power transfer efficiency and managing the increased complexity in packaging and matching circuitry are also discussed.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Electronic Components, Technology and MaterialsBio-Electronic
Highly efficient laser-driven Compton gamma-ray source
No full textThe recent advancement of high-intensity lasers has made all-optical Compton scattering become a promising way to produce ultrashort brilliant gamma-rays in an ultra-compact system. However, so far achieved Compton gamma-ray sources are limited by low conversion efficiency and spectral intensity. Here we present a highly efficient gamma photon emitter obtained by irradiating a high-intensity laser pulse on a miniature plasma device consisting of a plasma lens and a plasma mirror. This concept exploits strong spatiotemporal laser-shaping process and high-charge electron acceleration process in the plasma lens, as well as an efficient nonlinear Compton scattering process enabled by the plasma mirror. Our full three-dimensional particle-in-cell simulations demonstrate that in this novel scheme, brilliant gamma-rays with very high conversion efficiency (higher than 10(-2)) and spectral intensity (similar to 10(9) photons/0.1%BW) can be achieved by employing currently available petawatt-class lasers with intensity of 10(21) W cm(-2). Such efficient and intense gamma-ray sources would find applications in wide-ranging areas. ©2019 The Author(s)
vertical growth of thalassia testudinum seasonal and interannual variability
No full textThe vertical growth of shoots of the seagrass Thalassia testudinum Banks ex Konig in four meadows, along a range of exposure to waves, in the Mexican Caribbean was examined to elucidate its magnitude and its relationship to sediment dynamics. Average internodal length varied between 0.17 and 12.75 mm, and was greatest in the meadow which experienced the greatest burial by sand waves moved by Hurricane Gilbert (September 1988). Internodal length showed annual cycles, confirmed by the flower scars always preceding or coinciding with the annual minimum internodal length. These annual cycles on the shoot allowed estimation of annual leaf production, which varied, on average, between 14.2 and 19.3 leaves per shoot year-1. High vertical shoot growth was associated with long internodes and high leaf production rate, which increased with increasing vertical shoot growth to a maximum of approximately 25 leaves per shoot year-1, with vertical growth of about 30 mm year-1 or more. Average internodal length showed substantial interannual differences from perturbations derived from the passage of Hurricane Gilbert. The growth response of the plants surviving moderate burial and erosion after the hurricane involved enhanced vertical growth and increased leaf production, and reduced vertical growth, respectively, after 1988. The variability in shoot vertical growth of T testudinum can be separated into seasonal changes in plant growth, and long-term variability associated with episodic perturbations involving sediment redistribution by hurricanes
Façana i campanar del monestir de Monestir de Santa Maria de Ripoll
No full textBoTítol atorgat pel catalogado
Porta de l'església de Sant Pol de Sant Joan de les Abadesses
No full textBoTítol atorgat pel catalogado
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