5,540 research outputs found
ADICIONES AL GÉNERO INGA (INGEAE, MIMOSOIDEAE, LEGUMINOSAE) PARA LA FLORA MESOAMERICANA
No full textPara la Flora Mesoamericana se dan a conocer dos nuevas especies para la ciencia en el género Inga (Ingeae, Mimosoideae, Leguminosae) y se propone un cambio de rango. Así se describen e ilustran a Inga lactifera M. Sousa e I. appendiculata M. Sousa; y se eleva el nivel taxonómico de I. multijuga subsp. mexicana T.D. Penn.; también se ilustra por primera vez a I. chiapensis Miranda ex M. Sousa
A direct A.C. to A.C. regenerative frequency and voltage converter
No full textIncludes bibliographical references.The reliable variable speed operation of an a. c. machine over a wide speed range is a problem that has received attention for some time. In this thesis a system to permit such operation from a fixed frequency fixed voltage supply is proposed, under the name of the asynchronous modulation converter. This converter is of the cycloconverter family, but is force-commutated and is not synchronised with the supply frequency. The power switching element comprises a power transistor in a diode bridge, coupled to the control circuitry by opto-isolators. The output of the a-mod converter is produced by a "chopper" modulation process and this results in the harmonics present being at frequencies well removed from the fundamental. A feedback system to ensure smooth commutation of the output current from the power switches is described. This feedback system operates by sensing the rate of rise of the inductive voltage surge on the load when a switch is opened to operate a freewheel path switch
Microalgas: do tratamento de efluentes para a biorrefinaria
No full textPartes do presente trabalho foram submetidas para publicação:
Subcapítulo 5.1
Graça, S., Sousa, C., Ambrosano, L., Hall, L., Oliveira, A.C., Ribeiro, B., Gouveia, L. (2014); Production of valuable microalgal biomass by treating Urban Wastewater. Submetido Algal Research (Ref. No.: ALGAL-D-14-00148)
Subcapítulo 5.7
Batista, A.P., Ambrosano, L., Graça, S., Sousa, C., Marques, P., Ribeiro, B., Botrel, E., Neto, P. e Gouveia, L. (2014); Combining urban wastewater with biohydrogen production - an integrated microalgae-based approach; Bioresource Technology (Ref. No.: BITE-D-14-04819)Laboratório Nacional de Energia e Geologi
Marsico, G., Dazzani, V., Ristum, M. & Bastos A.C. (2015). Borders in Education: Examining Contexts. In G. Marsico, V. Dazzani, M. Ristum & A.C. Bastos (Eds). (2015). Educational contexts and borders through a cultural lens – Looking inside. Viewing outside.. Cultural Psychology of Education, 1, Geneve, Switzerland: Springer (p.359-366);
No full textThe research in educational psychology has often challenged the concept of educational context. According to the different theoretical frameworks, the construct of context, its borders and the aspects to be taken into account, have been defined in different ways.
The objective of this book is to provide a “context” of discussion in order to rethink the relationship between actors, practices and borders within the educational settings in the various currently thriving perspectives of Cultural Psychology. The main idea is to focus on how teachers, parents, students, educators, professionals, with their own identity and social representations, build their educational practices, share cultural spaces where knowledge is generated, and define the borders of the educational contexts.
This book stems from the contemporary Cultural Psychology and represents an attempt to reflect upon the educational contexts as characterized by the inherent unity of both situatedness and generalizability in their relationship with other life spaces or micro-cultures
Ristum, M., Bastos, A.C., Dazzani, V. & Marsico, G. (2015). Experiencing the Educational Contexts: Insideness, Outsideness, Beetweeness. In G. Marsico, V. Dazzani, M. Ristum & A.C. Bastos (Eds). (2015). Educational contexts and borders through a cultural lens – Looking inside. Viewing outside. Cultural Psychology of Education, 1, Geneva, Switzerland: Springer (pp. 157-160);
No full textFollowing the theoretical coordinates presented in the first part of this volume, at the more abstract level and while considering Brazil as a case study - some past, present and future developments and implications - we assemble, in this final part, concrete examples about experiencing educational contexts from inside, from outside and in between. We assume here that educational processes entail liminarity: human beings develop in the measure that their continuous meaning-making activity produces distinctions between borders, creates and modifies borders. Three sections are introduced here, including chapters that analyze educational realities in five different countries: Italy, Brazil, Argentina, Japan and the United Kingdom.. The Insideness section focuses on developmental processes that take place within the school, elaborating on such topics as cooperation, social rules, relationships between language and developmental processes, violence and family-school interactions. The Outsideness section includes five chapters that, coming from distinct sociocultural contexts, share common interests, inquiring about educational contexts and activities beyond the walls of the school. Finally, the four chapters found in the Betweenness section analyze various facets at the school-family-work intersection
Estudo da cobrança como instrumento de gestão social de bacias hidrográficas: uma aplicação à bacia hidrográfica do Rio Cubatão do Sul
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Ambiental.A Lei Federal 9.433/97 instituiu no Brasil a Política Nacional de Recursos Hídricos e criou o Sistema Nacional de Recursos Hídricos, definindo fundamentos, objetivos, diretrizes e instrumentos para a gestão social da água como um bem público. Esta Lei enfatiza a bacia hidrográfica como unidade de planejamento e gerenciamento dos recursos hídricos através da participação da sociedade, permitindo assim, a mediação e o diálogo no processo da utilização sustentável da água. Considerando a existência da aplicação da cobrança em vários países, bem como as experiências já existentes no Brasil, este trabalho teve por objetivo estudar metodologias de cobrança com a finalidade de sugerir, com a participação do Comitê Cubatão, um modelo para a Bacia do Rio Cubatão do Sul, localizada no estado de Santa Catarina, levando em conta suas peculiaridades e realidade. A metodologia aplicada obedeceu às seguintes etapas: revisão bibliográfica; verificação junto aos organismos de bacia dos modelos de cobrança já existentes; estudo das variáveis e as justificativas sociais e econômicas para a cobrança dentro de cada um destes modelos; a definição do modelo de cobrança para a Bacia Hidrográfica do Rio Cubatão do Sul, a partir da participação dos membros do Comitê Cubatão; e finalmente, simulação do modelo proposto. Como resultado de uma análise dos dados levantados, exploração das possibilidades existentes, similaridades e, principalmente, pelas atuais limitações de cadastro de usuários na bacia estudada, o modelo escolhido pelos membros do Comitê para a Bacia do Cubatão do Sul foi aquele adotado na Bacia do Paraíba do Sul. Além disso, também foram considerados os critérios recomendados pela OCDE quando da adoção de instrumentos econômicos: praticabilidade e aceitabilidade, critérios estes, facilitadores para a compreensão do modelo proposto por parte dos usuários, que são aqueles que mais necessitam entendê-lo. The Brazilian Federal Law 9.433 instituted in 1997 the "National Politics of Water Resources" and created the National Water Resources System, defining Fundamental considerations, objectives, lines of direction and instruments for water resource management as a public good. The Law emphasizes the watersheds are the units for the planning and management of water resources and the participation of the society is one of its main fundamental considerations, thus it allows the mediation and the dialogue in the process of managing for the sustainability of water use. Considering the existence and the application of water charge instrument in some countries as well as the Brazilian experiences in that field, this work's objective was to study methodologies of water charge with the purpose to suggest, within a participative group of the Cubatão do Sul Watershed Management Committee, a model for the Cubatão do Sul river basin, located in the state of Santa Catarina. This work took place considering the local peculiarities and reality. The applied methodology obeyed the following stages: bibliographical revision; verification within the watershed management commitees about the existing water charge models; study of the mathematical variables and the social and economic justifications for water charge in each one of these models; the participative definition of the model of water charge which is more adapted for the application on the Cubatão do Sul river basin with the members of a Work Group that belong to the river Cubatão do Sul Watershed Management Committee; and finally, simulation of the considered model for the Cubatão do Sul do Sul river basin. As result of an asset of the raised data, exploration of the existing possibilities, similarities and, mainly, considering the current limitations the registration of water users in the studied basin, the model chosen by the members of the Cubatão do Sul river basin was that one developed and adopted in the Paraíba do Sul river basin. Moreover were also considered the main criteria recommended by the OCDE as the adoption of economic instruments: practicability and acceptability, criteria which make the understanding of the water charge model easier for the users, who will deal with this instrument on a daily basis and thus need to understand it well
Zane Grey with Orange A.C. baseball team
No full textThis photograph shows Ohio native Zane Grey with the Orange A.C. Baseball Team, ca. 1896-1904. Prior to becoming a well-known author of western novels, Zane Grey was also a dentist and a semi-professional baseball player, with teams including the Orange Athletic Club and the Newark (New Jersey) Colts
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