877 research outputs found
Mapeamento Geológico-Geotécnico Preliminar, Utilizando Geoprocessamento, no Município de Campos dos Goytacazes, Estado do Rio de Janeiro.
Campos dos Goytacazes County is located on the north coast of Rio de Janeiro State. The city of Camposdos Goytacazes was developed on a fl ooding plain and due to the fragility of the physical environment; the cityhas been suffering serious environmental problems. The methodology used base in acquisition of data bank,remote sensoring techniques, Field Information and application of SIG ArcGis9. In a fi rst step, the themesgeology, pedology and geomorphology units was overlaying, where could obtain a Geological-GeotechnicalUnits Map, with lowed and elevated units, the which had been defi ned in accordance with its characteristics.The purpose of this map, as well as the objective of the work is to plan the territory for the future generations
Interacção, emoção e aprendizagem
Mestrado em Multimédia em EducaçãoO presente trabalho propõe uma abordagem aos sistemas multimédia
educativos baseada na relação entre a aprendizagem, a interacção no
contexto das interfaces gráficas e as emoções.
Os produtos multimédia com finalidades educativas para crianças nem sempre
fornecem um suporte válido para o desenvolvimento da criatividade, das
capacidades (cognitivas, perceptivo-motoras e emocionais) e para a aquisição
de conhecimento. De modo a cumprirem estas funções é necessário que
esses produtos sejam desenvolvidos com vista à integração das
necessidades, interesses e capacidades das crianças.
Partindo dos pressupostos que interfaces com diferentes paradigmas e estilos
de interacção produzem diferentes reacções emocionais nos utilizadores, e
que essas reacções emocionais interferem na aprendizagem, este projecto
procurou evidências desses pressupostos através de um estudo de caso para
o qual foi desenvolvido e testado um sistema multimédia vocacionado para o
ensino da História da Arte.The present work proposes an approach to multimedia educational systems
based on the relationship between learning, interaction in the context of
graphical interfaces and emotions.
Educational multimedia systems, addressed for children, don’t always provide
a valid support for the development of creativity, skills or knowledge acquisition.
In order to fulfil these functions multimedia systems need to be developed
aiming for the integration of children’s capacities and needs, as perceptive
motor skills, cognitive and emotional skills.
Assuming that interfaces with different paradigms and styles of interaction
produce different emotional reactions in the users, and that these emotional
responses interfere/interplay with learning, this project looked for evidences of
this assumptions through a case study for which was developed and tested a
multimedia system with a theme from Art History
Relatório detalhado de atividade profissional: estudo de caso: ETAR de Faro-Olhão
Mestrado em Engenharia do AmbienteO presente trabalho propõe-se apresentar o percurso
profissional, na área de engenharia do ambiente, desde a
conclusão da licenciatura até ao presente, com destaque para
os projetos mais importantes desenvolvidos durante este
período. Como estudo de caso, é apresentado o projeto
desenvolvido para o tratamento de águas residuais de Faro-
Olhão, incluindo a análise comparativa de duas soluções
alternativas de tratamento por “SBR” e “MBR”.The aim of this report is to present the professional activity,
developed since my graduation until the present, detailing some
of the most important projects in the field of environmental
engineering. It includes a case study for the waste water
treatment plant of Faro - Olhão, with a comparative analysis
between two alternative treatment solutions "SBR" and "MBR"
Iguarivarius internationalization to Cuba
This work project provides a deeper comprehension of the Cuban current situation and suggests processual and investment choices to Iguarivarius - a Portuguese meat exporter. We analysed the macro and micro environments and we also studied the application of Just-In-Time methodology, evaluating its impacts, as well as an internationalization approach based on the Uppsala model. With business opportunities arising from an increased number of tourists that demand more and higher quality meat, we concluded that Iguarivarius should enter the market, following a sequential entry strategy with low commitment of resources, applying a logistic methodology that allows cost-efficiency and customer satisfactio
CADÊ A PALAVRA QUE ESTAVA AQUI? O IMPLÍCITO COMEU! IMPLÍCITOS SEMÂNTICOS NO LIVRO DIDÁTICO DE LÍNGUA PORTUGUESA
Este artigo tem como principal objetivo analisar a abordagem do fenômeno semântico implícito em atividades no livro didático de língua portuguesa, além dos objetivos específicos de verificar a presença de palavras ou ideias implícitas e identificar a contribuição do trabalho com implícito no livro didático de língua portuguesa. O corpus da pesquisa constitui-se do livro didático Português Contemporâneo: diálogo, reflexão e uso, volume 1, 1º ano do Ensino Médio, de William Cereja, Carolina Vianna e Christiane Damien, (2016), aprovado no PNLD 2018. A partir das análises realizadas em discussão com os estudos de autores modernos, constatou-se que palavras ou ideias implícitas são abordadas de forma recorrente em atividades no livro didático de língua portuguesa sob a perspectiva da construção dos sentidos do texto e contribuem para a formação do leitor reflexivo e crítico
N,N '-dimethyl-N,N '-dicyclohexylsuccinamide: A novel molecule for the separation and recovery of Pd(II) by liquid-liquid extraction
N,N'-dimethyl-N,N'-dicyclohexylsuccinamide (DMDCHSA) is investigated as a potential molecule for the liquid-liquid extraction of Pd(II) from chloride solutions for the first time. The effect of several parameters on Pd(II) extraction, such as the contact period between both phases, hydrochloric acid, extractant and hydrogen ion concentrations, is evaluated. Pd(II) extraction equilibrium is very fast (30 s) and the extraction percentage (%E) increases with the HCI concentration in the aqueous phases, being higher than 60% for [HCl] > 5 M. The loading capacity of DMDCHSA for Pd(II) is reasonable (molar ratio extractant/metal higher than 16). Several stripping agents (e.g. distilled water, 1 M HCl, seawater and 20 g/L chloride solution as NaCl) were successfully used to transfer Pd(II) to a new aqueous phase, and data obtained from five successive extraction-stripping cycles suggest a good DMDCHSA stability pattern. Attempts to replace 1,2-dichloroethane (1,2-DCE) by commercial and more environmentally friendly diluents showed much worse %E for Pd(II). Selectivity tests with binary, ternary and more complex metal ion solutions were carried out to evaluate the performance of DMDCHSA towards Pd(II) recovery from 6 M HCl, when in presence of Pt(IV), Fe(III), Zn(II), Al(III) and Ce(III), metal ions usually present in solutions that may result from the hydrometallurgical treatment of spent automobile catalytic converters. It was generally observed that the additional metal ions do not affect the recovery of Pd(II) by DMDCHSA, although Fe(III) and Pt(IV) were co-extracted in a great extent. A solvent extraction (SX) scheme is proposed, based on a previous separation of Fe(III) with tributylphosphate (TBP) and on the selective and sequential stripping of Pt(IV) and Pd(II) from the loaded DMDCHSA with 0.01 M thiourea in 0.5 M HCI and seawater, respectively. The dependence of the Pd(II) distribution ratios on DMDCHSA and acidity, complemented with UV-Visible spectroscopy data, points out to DMDCHSA:Pd(II) extracted species with a 2:1 molar ratio and suggests the occurrence of an outer-sphere ion pair reaction, in which both [PdCl4](2-) and HCI are extracted
Uma nova reforma do ensino médio e as oportunidades educacionais: ponderações recentes / Una nueva reforma de la escuela secundaria y cómo las oportunidades educativas: consideraciones iniciales
Este artigo tem por objetivo apresentar, com base em uma investigação bibliográfica, reflexões iniciais de uma pesquisa de doutorado que analisa as implicações da nova reforma do Ensino Médio para a educação brasileira, sobretudo, para oferta dessa última etapa da Educação Básica. Nesse sentido, este trabalho faz uma análise a partir de autores, como Sfredo e Silva (2016) e Carrano (2017), que avaliam os impactos dessa e de outras reformas voltadas para essa etapa educacional, instauradas ao longo da história, que partiam de perspectivas semelhantes a atual proposta. Desse modo, é possível considerar a partir das discussões aqui levantadas, que a reformulação prescrita pela lei 13.415 reforça o processo de desigualdade educacional, ao mesmo tempo, em que intensifica a natureza e o caráter dual atribuído a essa etapa de ensino pelas diferentes políticas promulgadas no Brasil.
CULTURE MEDIA EVALUATION ON THE Leucoagaricus gongylophorus AND Escovopsis sp. FUNGI DEVELOPMENT
This study aimed to evaluate the in vitro interference of different culture media, Czapek Dox Agar, Nutrient Agar, Starch Casein agar, Malt Extract Broth Base, Nutrient Broth, and the medium containing Peptone, Malt, Agar and crushed peach palm pulp (Bactris gasipaes) and tucumã (Astrocaryum aculeatum) on the fungus Leucoagaricus gongylophorus and the parasitic fungus Escovopsis sp. growth. The fungi were inoculated in different culture media and then kept in acclimatized chambers at 28 ºC in the dark for 42 days, being analyzed at weekly intervals, totaling six evaluations. Fungal colonies were evaluated considering the factor "f" (cm), obtained from the product between the width (W) and length (L) of the diameter of the colonies (f = W x L). The results showed that the symbiotic fungus and the leafcutter ant parasitic fungus showed a growth increase compared to the media provided in the plates, and the media added with tucumã peel, tucumã peel+pulp, fresh peach palm, and cooked peach palm had a significant effect in the L. gongylophorus fungus development. However, these treatments were not promising for the Escovopsis sp. fungus compared to other culture media
O Centro de atenção psicossocial do Jardim América em Fortaleza e a desinstitucionalização: uma história de resistências
This article aims to discuss how mental health professionals
understand the deinstitutionalization of asylums in Fortaleza, having as axis
guiding the Brazilian Psychiatric Reform. The research that originated it was of a
bibliographic, documentary and field. Systematic and participant observation,
as well as the semi-structured interview with the professionals, enabled us to
more often into the institution's universe. Among the main results
we perceive the professionals' concern about the risk of an open service
also institutionalize. They consider the formation of care networks to be essential
in health, as a means of preventing deinstitutionalization from becoming a
distant dream, and because many of the demands that came to the institution
stem from "social problems" that could be addressed in the community.Este artigo objetiva discutir como os profissionais da saúde mentalentendem a desinstitucionalização manicomial em Fortaleza, tendo como eixonorteador a Reforma Psiquiátrica brasileira. A pesquisa que o originou foi de naturezabibliográfica, documental e de campo. A observação sistemática e a participante, assim como a entrevista semi-estruturada com os profissionais, nos possibilitaram adentrar mais amiúde no universo da instituição. Entre os principais resultados percebemos a preocupação dos profissionais quanto ao risco de um serviço dito aberto também institucionalizar. Eles consideram imprescindível a formação de redes de cuidado em saúde, como meio de evitar que a desinstitucionalização se transforme em um sonho distante, e em razão de que, muitas das demandas chegadas à instituição decorreriam de "problemas sociais", que poderiam ser atendidos na comunidade
Voltammetric growth of tin oxides in borate solution of pH 8.7
Voltammetry has been employed to study the growth of tin oxides in buffer solution of 0.3 mol L-1 H3BO3 + 0.15 mol L-1 Na2B4O7·10H2O (pH 8.7). Voltammetric data were compared with the results of tin in a phosphate solution of pH 8.7, presented in the previous work, in order to study the influence of these anions on the growth of tin oxides. The thicknesses of grown oxides were determined using ex-situ ellipsometric technique and the volume per charge unity of the film, Vf, was calculated for different charge densities of the film. The results showed that less dense films were obtained at higher sweep rates. Tin oxide films grown in phosphate solution at 2 mV s-1 were denser than those grown in borate solution at the same sweep rate. The kinetic parameters, determined applying the ohmic model, showed that there are no significant differences between the kinetics at the metal/film interface of tin in borate and tin in phosphate solutions. Despite these facts, the ionic specific resistivity for oxide film growth in borate solution were significantly higher than in phosphate solution. This result indicates that incorporation of anions occurs during the growth of the films
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