145 resultados para Eventos e comemorações culturais
Resumo:
O objetivo deste trabalho foi avaliar as perdas de solo e água por erosão hídrica, em parcelas-padrão sob chuva natural, no período pós-plantio, em diferentes sistemas de manejo de florestas de eucalipto. O experimento foi instalado em Latossolo Vermelho-Amarelo, muito argiloso, relevo ondulado. As coletas de dados foram realizadas no período de outubro de 2002 a fevereiro de 2004, em eventos de chuva considerada erosiva. Os sistemas estudados foram: mata nativa; pastagem plantada; eucalipto plantado em nível; eucalipto plantado na direção do declive; eucalipto plantado na direção do declive com queima de restos culturais; e solo descoberto. Entre os sistemas florestais, o eucalipto em nível é o que mais se aproxima da mata nativa, em perdas de solo, indicando assim maior sustentabilidade desse sistema. Os maiores valores de perda de água são encontrados no sistema eucalipto plantado na direção do declive com queima de restos culturais, sugerindo que o fogo aumenta a repelência à água e diminui a taxa de infiltração de água no solo. Todos os sistemas de manejo do eucalipto estudados apresentaram perdas de solo inferiores ao limite de tolerância.
Resumo:
Este artigo analisa a persistência da marginalização e da exclusão social apesar da pretensa democratização da informação que estaria sendo viabilizada pela introdução de novas tecnologias nos meios de comunicação de massa, nas escolas e nos currículos escolares. Essas novas tecnologias (TV, vídeos, computadores conectados à Internet), tendo sido apropriadas pela Indústria Cultural, continuam produzindo analfabetos e os chamados analfabetos funcionais bem como, mais recentemente, os analfabetos ponto com. Tais recursos não vêm resultando em maior conhecimento e participação dos indivíduos nas decisões políticas e nos bens socio-culturais que ficam restritos a uma pequena minoria, a qual se poderia chamar pelo substantivo cidadão. A tentativa de superação dos modismos pedagógicos, buscando uma educação crítica e criativa em direção a objetivos emancipadores, é tarefa ainda a ser realizada.
Resumo:
A literatura revela que, embora a população jovem possua suficiente conhecimento sobre métodos contraceptivos, é baixa a frequência de sua utilização. Este estudo investigou características do uso de preservativos e possíveis variáveis controladoras desse comportamento em estudantes com idade entre 13 e 18 anos. Foi utilizado um questionário estruturado, cujos resultados sugerem que: (1) os adolescentes demonstram seguir regras que mantêm o comportamento de não usar o preservativo; (2) os pais ou responsáveis não controlam punitivamente esse comportamento; (3) os serviços de saúde são pouco reforçadores para o esclarecimento de dúvidas sobre sexualidade e para a obtenção de preservativos. São analisadas influências de história individual e de práticas culturais sobre os resultados.
Resumo:
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Resumo:
The experiments were conducted during two years (1990/91 and 1992/93), to study the effects of the incorporation of bengal velvetbean and of residues on the development and yield of the winter bean crops. The trial was developed in experimental field at the Faculdade de Engenharia de Ilha Solteira, UNESP, located in Selvíria, MS, Brazil, in dark red latosol covered by savanna vegetation. It was concluded that: the incorporation of residues of corn or corn + bengal velvetbean or only bengal velvetbean had no effects on soil chemical characteristics, evaluated 80 days after the residues incorporation; in yield and bean crop development, no statistical differences were observed among treatments.
Resumo:
The beachs of Santos are situated in Santos Bay, central portion of paulista coast, in São Paulo state. This beachs are frequently affected by cold fronts with winds and currents from the South. These fronts are responsible for the removal and transport of sediments (sand) in Santos beaches. In order to quantify this sedimentation the channels of Santos were analysed, due to their function as box colectors of sediments during storm events. The channels are filled by sands, which volume in channels 1 to 6 was estimated, by using the length, width and height of sand sedimented in the channels, in the event of 22-27 april 2005. The chanels 2, 3 and 1 presented the larger volumes of sands, confirming that the central and SW portion of the beaches of Santos present higher levels of sedimentation or re-sedimentation. That is due to the transport by ocean waves and currents and currents from the Channel of the Port of Santos. This central portion suffer invasion of marine water over street and buildings, caracterizated of geological rise area.
Resumo:
Sickle cell disease is an inflammatory condition with a pathophysiology that involves vaso-occlusive episodes. Mutations of the methylenetetrahydrofolate reductase (MTHFR) and cystathionine beta-synthase (CBS) genes are risk factors for vascular disease. Due to the importance of identifying risk factors for vaso-occlusive events in sickle cell patients, we investigated the frequencies of the C677T and 844ins68 mutations of the MTHFR and CBS genes, respectively. Three hundred patients with Hb SS, HB SC and HbS/Beta thalassemia, from Brasília, Goiânia, Rio de Janeiro, São Jose do Rio Preto and São Paulo were evaluated. Samples of 5 mL of venous blood were collected in EDTA after informed consent was received from patients. Classical diagnostic methods were used to confirm the hemoglobin phenotypes. The hemoglobin genotypes and polymorphisms studied were evaluated by Restriction Fragment Length Polymorphism and Allele Specific amplification. The results showed that 93 patients (31.00%) were heterozygous and 13 (4.33%) homozygous for the C677T mutation and 90 were heterozygotes (30.00%) and 8 homozygous (2.66%) for the 844ins68 mutation, both with significant differences for genotype frequency between the localities. The allelic frequencies are in Hardy-Weinberg equilibrium for both polymorphisms. The frequency of mutations was significant and the presence of related vaso-occlusive events was more common in patients with Hb SS (p = 0007). The 844ins68 mutation was approximately three times more frequent in patients with vaso-occlusive complications (p = 0011). The C677T mutation did not prove to be associated with risk of vaso-occlusive events (p = 0.193). A C677T-844ins68 interaction occurred in 12.08% of the patients, doubling the risk of vaso-occlusive manifestations. The frequencies of the polymorphisms are consistent with those expected in the Brazilian population. The presence of the 844ins68 mutation of the CBS gene proved to be a potential risk factor for vaso-occlusive events in sickle cell patients.
Resumo:
The contemporaneous culture presents new con ditions of interaction with the information flows in the knowledge construction. Multidimensional codifications stimulate the brain and impress meaning to concepts initially empty. Culture is redefined as mosaic-culture, composed by a diversity of media and by immersion in the messages' sphere. In emerge nt countries like Brazil that propose to capacitate citizens for action and for interaction, the aims should imply the respect to the cultural specificities and in the real improvement of the citizens welfare. Information Science in this context must seek theorizations and practices that contribute to social improvements, capacitating and a better understanding of the challenges of Social Web. If the PISA examination demonstrates the County's frailness relating to the information, the 2011 Unicef report point to opportunities. The Universities have an essential role in the capacitating and in the creation of professional contingents, developing their own potentialities in the study, research and knowledge production for a better use of the Information and Communication Technologies. The man-machinery interfaces offer new problems to be dealt together with the literacy lags in Brazil: if information needs to be communicated to re-elaborate in knowledge, its representational supports need to be learnt as technological processes. Implementing informational ambiences studies will produce material for analyses, for the understanding and for the cultural practices importation, converting them to the contextualization of the Country's needs.
Resumo:
Pós-graduação em Artes - IA
Resumo:
Pós-graduação em Artes - IA
Resumo:
Pós-graduação em Ciência da Computação - IBILCE
Resumo:
Pós-graduação em Comunicação - FAAC
Resumo:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Resumo:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)