Natural Necessity
Mostrando 13-24 de 164 artigos, teses e dissertações.
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13. Explorando produtos naturais microbianos nas fronteiras da Química e da Biologia
The chemistry of natural products has been remarkably growing in the past few decades in Brazil. Aspects related to the isolation and identification of new natural products, as well as their biological activities, have been achieved in different laboratories working on this subject in the country. More recently, the introduction of new molecular biology tool
Quím. Nova. Publicado em: 2013
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14. Carboidratos como fonte de compostos para a indústria de química fina
Coal, oil, natural gas, and shale gas are biomass that is formed millions of years ago. These are non-renewable and depleting, even considering the recent discovery of new sources of oil in the presalt and new technologies for the exploitation of shale deposits. Currently, these raw materials are used as a source of energy production and are also important f
Quím. Nova. Publicado em: 2013
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15. Leibniz e Hobbes: causalidade e princípio de razão suficiente / Leibniz and Hobbes: causality and principle of sufficient reason
O escopo desta pesquisa de doutorado é examinar a relação entre a doutrina hobbesiana da causalidade e o princípio de razão suficiente em Leibniz, assinalando a aproximação e o distanciamento entre um e outro. Se, por um lado, o filósofo alemão é claramente influenciado por Hobbes na formulação de seu princípio, por outro, é por meio desse pró
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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16. An overview of flexibility and generalized uncertainty in optimization
Two new powerful mathematical languages, fuzzy set theory and possibility theory, have led to two optimization types that explicitly incorporate data whose values are not real-valued nor probabilistic: 1) flexible optimization and 2) optimization under generalized uncertainty. Our aim is to make clear what these two types are, make distinctions, and show how
Comput. Appl. Math.. Publicado em: 2012
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17. A Ética do cuidado na educação infantil: um olhar diferenciado para a formação educacional integral da criança.
A reflection on the educational development of children in Early Childhood Education related to the need to practice the ethics of care in making teaching in institutions of kindergarten viewing the formation of an adult in the future with building ethics into their personal and social action. The first chapter gives way to an ethics of care. To that end, co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/12/2011
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18. O papel do Hilemorfismo nos príncipios do exame da constituição do ser vivo em Aristóteles / The Role of Hilemorphism in the Examination of the Principles of the Constitution of the Living Being in Aristotle
A presente pesquisa tem o objetivo de estudar os princípios de investigação dos seres vivos tendo como parâmetro a concepção hilemórfica dos entes naturais em Aristóteles. Para tanto, em primeiro lugar, analisaremos o hilemorfismo tal como exposto no Livro II da Física, a fim de investigarmos a doutrina da matéria e forma, no contexto em que ela de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/09/2011
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19. Neurofibromatose tipo 1: sobre o que não se vê e o que se sente - uma travessia entre a invisibilidade social e o conhecimento sobre a doença
The Neurofibromatosis type 1 (NF1) is a genetic autosomal dominat disease, that has unpredictable manifestation and course, and occurs in approximately 1:2500 births. Although the most common symptoms have benign clinical features, somatic, aesthetic, and psychosocial aspects interfere in patient s daily life. Among these symptoms are the most common changes
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/07/2011
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20. Runoff inducement research for agriculture in very arid zones of Northeast Brazil.
The concept of runoff inducement for agricultural purposes in discussed in detail. Its implications to the North-East Braziliam conditions and necessity for additional research is explained. An exautive review of the research at various places in the world is included. The latest work being carried out at the Centro of Agricultural Research for Semi-Arid Tro
CONGRESSO BRASILEIRO DE ENGENHARIA AGRICOLA. Publicado em: 2011
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21. Estrutura e agência no meio rural : um estudo do projeto Redes de Referência para a agricultura familiar
One of Brazil s main economic activities is the agriculture and cattle raising industry, so it is for its natural conditions or for its colonization process. Therefore this sector has intensive research and tecnology to help its development. But, the farm men not always adopt the practices from these researches because they not constantly recognize themselve
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/12/2010
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22. Substituição da areia natural por areia de britagem de rochas basálticas para argamassas de revestimento
The present study has the purpose of evaluate the artificial sand, in substitution the extration sand, in mortars of covering. The substitution of percentage of the extration sand was also evaluated. The artificial sand is an alternative to the sand of extration in mortars, in view of the gradual exhaustion of the deposits of sand next to the great consumers
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/03/2010
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23. DiGeorge Syndrome: a not so rare disease
INTRODUCTION: The DiGeorge Syndrome was first described in 1968 as a primary immunodeficiency resulting from the abnormal development of the third and fourth pharyngeal pouches during embryonic life. It is characterized by hypocalcemia due to hypoparathyroidism, heart defects, and thymic hypoplasia or aplasia. Its incidence is 1:3000 live births and, despite
Clinics. Publicado em: 2010
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24. Desenvolvimento e análise de impacto de uma aplicação colaborativa voltada para o aprendizado utilizando interação pen-based / Development and assessment of a pen-based learning tool
Introducing new computational devices in an educational environment isn t only giving hardware and software to the peers. It s needed to identify the peers expectations and adequate them to the teaching methodology. The usage of computing in education can bring a great improvement in the students learning experience, but it s necessary to access these method
Publicado em: 2010