651 resultados para Lagos rasos
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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p. [107]-[109] advertising matter.
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Vols. 2-6 have subtitle: Documents officiels précédés de notices historiques.
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Includes bibliographical references.
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pt. 1. Yoruba-English.--pt. 2. English-Yoruba.
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Plate signed: Aquera.
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A partir da observação do crescente processo de masculinização das práticas religiosas afro-brasileiras, na cidade de Porto Velho (RO), o presente trabalho faz algumas abordagens da relação de gênero, violência e poder. A hipótese se pautou na constatação do aumento de homens ocupando os cargos de sacerdotes, e da reclamação das mulheres quanto à distribuição das tarefas nos templos, o que levou a pensar na existência de violência de gênero. O objetivo da pesquisa foi o de analisar a relação entre o processo de masculinização das lideranças e a intensificação da violência de gênero. O trabalho de pesquisa de campo foi realizado com a observação aos rituais públicos, atividades internas das casas religiosas e entrevistas semiestruturadas com sacerdotes e sacerdotisas, adeptos e adeptas. Percorreu-se a trajetória das práticas religiosas afro-brasileiras locais buscando compreender as transformações ocorridas, sondando sobre a existência de violência de gênero, quais são, e como se estabelecem nos espaços de práticas religiosas compreendidas por Templos, Casas, Ilês, Roças, Centros, Terreiros e outras denominações.
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Arreda homem que aí vem mulher... , trata das representações de gênero nas manifestações da Pombagira, entidade espiritual da religiosidade afro-brasileira. O trabalho faz uma leitura diferenciada sobre a figura da Pombagira trazendo-a para o campo social, mostrando sua construção e suas funções, desmistificando sua associação com o mal que supomos esteja relacionado com a sua função de intermediadora das relações amorosas, vinculadas ao poder via sexualidade, além da sua manifestação como contestadora do papel feminino construído. A pesquisa foi realizada por meio da observação dos rituais e entrevistas semi-estruturadas com sacerdotes, sacerdotisas e adeptos da religiosidade afro-brasileira em terreiros de Candomblé e Umbanda na cidade de Porto Velho - Rondônia. Apresentamos no primeiro capítulo algumas observações sobre as suas imagens, funções e representações. No segundo capítulo trazemos as construções da sua figura pelos cientistas sociais, religiosos, entrevistados e entrevistadas. O terceiro capítulo foi dedicado às observações sobre as representações da Pombagira, objetivo central do trabalho.AU)
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During the remediation of burial grounds at the US Department of Energy's (DOE's) Hanford Site in Washington State, the dispersion of contaminated soil particles and dust is an issue that is faced by site workers on a daily basis. This contamination problem is even more of a concern when one takes into account the semi-arid characteristics of the region where the site is located. To mitigate this problem, workers at the site use a variety of engineered methods to minimize the dispersion of contaminated soil and dust (i.e. use of water and/or suppression agents that stabilizes the soil prior to soil excavation, segregation, and removal activities). A primary contributor to the dispersion of contaminated soil and dust is wind soil erosion. The erosion process occurs when the wind speed exceeds a certain threshold value which depends on a number of factors including wind force loading, particle size, surface soil moisture, and the geometry of the soil. Thus under these circumstances, the mobility of contaminated soil and generation and dispersion of particulate matter are significantly influenced by these parameters. This dependence of soil and dust movement on threshold shear velocity, fixative dilution and/or application rates, soil moisture content, and soil geometry were studied for Hanford's sandy soil through a series of wind tunnel experiments, laboratory experiments and theoretical analysis. In addition, the behavior of plutonium (Pu) powder contamination in the soil was studied by introducing a Pu simulant (cerium oxide). The results showed that soil dispersion and PM10 concentrations decreased with increasing soil moisture. Also, it was shown that the mobility of the soil was affected by increasing wind velocity. It was demonstrated that the use of fixative products greatly decreased the amount of soil and PM10 concentrations when exposed to varying wind conditions. In addition, it was shown that geometry of the soil sample affected the velocity profile and calculation of roughness surface coefficient when comparing round and flat soil samples. Finally, threshold shear velocities were calculated for soil with flat surface and their dependency on surface soil moisture was demonstrated. A theoretical framework was developed to explain these dependencies.
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Approaches to quantify the organic carbon accumulation on a global scale generally do not consider the small-scale variability of sedimentary and oceanographic boundary conditions along continental margins. In this study, we present a new approach to regionalize the total organic carbon (TOC) content in surface sediments (<5 cm sediment depth). It is based on a compilation of more than 5500 single measurements from various sources. Global TOC distribution was determined by the application of a combined qualitative and quantitative-geostatistical method. Overall, 33 benthic TOC-based provinces were defined and used to process the global distribution pattern of the TOC content in surface sediments in a 1°x1° grid resolution. Regional dependencies of data points within each single province are expressed by modeled semi-variograms. Measured and estimated TOC values show good correlation, emphasizing the reasonable applicability of the method. The accumulation of organic carbon in marine surface sediments is a key parameter in the control of mineralization processes and the material exchange between the sediment and the ocean water. Our approach will help to improve global budgets of nutrient and carbon cycles.
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The exponential growth of studies on the biological response to ocean acidification over the last few decades has generated a large amount of data. To facilitate data comparison, a data compilation hosted at the data publisher PANGAEA was initiated in 2008 and is updated on a regular basis (doi:10.1594/PANGAEA.149999). By January 2015, a total of 581 data sets (over 4 000 000 data points) from 539 papers had been archived. Here we present the developments of this data compilation five years since its first description by Nisumaa et al. (2010). Most of study sites from which data archived are still in the Northern Hemisphere and the number of archived data from studies from the Southern Hemisphere and polar oceans are still relatively low. Data from 60 studies that investigated the response of a mix of organisms or natural communities were all added after 2010, indicating a welcomed shift from the study of individual organisms to communities and ecosystems. The initial imbalance of considerably more data archived on calcification and primary production than on other processes has improved. There is also a clear tendency towards more data archived from multifactorial studies after 2010. For easier and more effective access to ocean acidification data, the ocean acidification community is strongly encouraged to contribute to the data archiving effort, and help develop standard vocabularies describing the variables and define best practices for archiving ocean acidification data.