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Search Results: 1 - 10 of 355043 matches for " Luiz Sérgio Carvalho; "
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Statistical Estimation of Surface Heat Control and Exchange in Endotherms  [PDF]
Barbara Henning, Benilton de Sá Carvalho, José Luiz Boldrini, Sérgio Furtado dos Reis, Denis Otávio Vieira de Andrade
Open Journal of Statistics (OJS) , 2018, DOI: 10.4236/ojs.2018.81013
Abstract: In this paper, we combine polynomial functions, Generalized Estimating Equations, and bootstrap-based model selection to test for signatures of linear or nonlinear relationships between body surface temperature and ambient temperature in endotherms. Linearity or nonlinearity is associated with the absence or presence of cutaneous vasodilation and vasoconstriction, respectively. We obtained experimental data on body surface temperature variation from a mammalian model organism as a function of ambient temperature using infrared thermal imaging. The statistical framework of model estimation and selection successfully detected linear and nonlinear relationships between body surface temperature and ambient temperature for different body regions of the model organism. These results demonstrate that our statistical approach is instrumental to assess the complexity of thermoregulation in endotherms.
Seasonal and spatial variability of appendicularian density and taxonomic composition in the Caravelas Estuary (Northeastern Brazil) and adjacent coastal area
Carvalho, Pedro Freitas de;Bonecker, Sérgio Luiz Costa;
Brazilian Archives of Biology and Technology , 2010, DOI: 10.1590/S1516-89132010000100020
Abstract: this study aimed to identify and assess the seasonal and spatial variations of the appendicularians in the caravelas river estuary and the adjacent coastal area. samples were taken during 12 campaigns over five years (2001 and 2003-2006). ten species were identified; the most abundant were oikopleura dioica, oikopleura rufescens, and oikopleura longicauda. these species represented more than 95% of the total numbers of appendicularians. the remaining species were less frequent and occurred in low densities. the mean density of appendicularians found at the coastal stations (804 ind.m-3.) was higher than in the estuary (66 ind.m-3). however, the differences observed between the estuary and coastal stations were not significant (p=0.54). the samples taken during the dry season showed a higher mean density (587 ind.m-3) than in the rainy season (376 ind.m-3), and the differences between the seasons were statistically significant (p=0.004).
Situa o da gest o de resíduos no setor de hotelaria
Sérgio Carvalho,Roberto Naime,Luiz Alonso de Oliveira Blanco
Revista Nordestina de Ecoturismo , 2009, DOI: 10.6008/ess1983-8344.2009.002.0001
Abstract: Este trabalho realiza um levantamento de dados secundário sobre o estado da arte da gest o de resíduos sólidos no setor hoteleiro. Inicialmente foi feito um levantamento sucinto da quest o ambiental na sociedade e posteriormente das rela es entre hotelaria e meio ambiente. Posteriormente foi feito um diagnóstico da gera o de resíduos na hotelaria e um panorama da gest o de resíduos no setor hoteleiro. A hospitalidade existe desde a antiguidade e sempre foi aplicada pela sociedade como um meio de promover rela es entre partes que se conhecem ou n o, utilizando a troca de produtos ou servi os entre aqueles que d o hospitalidade e aqueles que a recebem. A alimenta o por ser uma necessidade primária requer um ambiente para atender os hóspedes. Com o decorrer do tempo, a alimenta o ampliou seu foco, crescendo e passando também para uma satisfa o maior, sendo um ponto de encontro, um local de moda e um momento de prazer. Com isso aumenta muito o potencial de gera o de resíduos sólidos por hotéis, exigindo a existência de programas de gest o de resíduos. Conhecido como a “indústria sem chaminés”, o turismo, paralelamente aos benefícios proporcionados nas comunidades, produz também impacto ambiental que precisa ser reduzido ao máximo possível, para garantir o futuro do destino turístico como um todo e a sobrevivência dos próprios negócios que lá se instalam. Essa tarefa exige mudan as na maneira de pensar e agir, o que nem sempre é fácil; requer um volume considerável de informa es, nem sempre disponíveis; e geral, na maioria das vezes, muitas resistências das pessoas. Mesmo que os hóspedes ainda n o escolham um hotel pela gest o ambiental desenvolvida, este trabalho mostra que os hóspedes podem rejeitar o estabelecimento pela n o ades o deste a algum programa, principalmente se este hotel for um "resort", pousada ou hotel fazenda.
O papel da Teoria no método de pesquisa em Administra o The Role of Theory on Administration Research Method
André Luiz Maranh?o de Souza Le?o,Sérgio Carvalho Benício de Mello,Ricardo Sérgio Gomes Vieira
Revista Organiza??es em Contexto , 2010,
Abstract: A Administra o tem se caracterizado como uma ciência profundamente empírica. Este n o chega a ser um problema em si. Contudo, aponta para o risco de produzirmos um conhecimento efêmero ou pífio, que n o sobreviva em longo prazo e para quest es mais amplas que problemas de certas organiza es. Neste sentido, nos perguntamos sobre o lugar da teoria no método adotado para as pesquisas em Administra o, o que envolve um problema epistemológico. Com isto em mente, o presente trabalho discute as abordagens indutiva e hipotético-dedutiva, considerando suas diferen as, bem como vantagens e desvantagens. Discutimos também aspectos críticos em rela o à ado o de uma dessas abordagens, e as confrontamos por meio da chamada "guerra dos paradigmas" . Para além do dilema, apresentamos a possibilidade de abordagens mistas. Finalmente, apontamos que o pesquisador em Administra o quase sempre esteja em algum ponto deste processo, o qual percebemos como um continuum, e que o mais importante seja que tenhamos uma clara vis o do lugar da teoria em nossas pesquisas, como meio de qualificar o conhecimento que geramos. Administration has been characterized as a deeply empirical science. This is not a problem in itself. However, this points to the risk of producing an ephemeral or insignificant knowledge, which does not survive in the long term and to broader issues than problems within certain organizations. In this sense, we ask about the place of theory in the method adopted for researches in Administration, what involves an epistemological problem. With this in mind, this article discusses the hypothetical-deductive and inductive approaches, considering their differences, as well as advantages and disadvantages. We also discuss critical issues regarding the adoption of any of these approaches, and then we face them by the so-called "war of paradigms" . Behind the dilemma, we present the possibility of joint approaches. Finally, we point out that the Administration researcher is almost always somewhere in this process, which we realize as a continuum, and that the most important is that we have a clear vision of the place of theory in our research as a means of qualify the knowledge that generate.
Associa o de paralisia diafragmática bilateral e paralisia da cintura escapular após corre o de aneurisma de aorta: relato de caso
MALBOUISSON Luiz Marcelo Sá,PERES Denise,AYAMA Sérgio,CARMONA Maria José Carvalho
Revista Brasileira de Cirurgia Cardiovascular , 2001,
Abstract: A associa o de paralisia diafragmática bilateral e paralisia da cintura escapular é uma complica o rara após corre o de aneurisma de aorta ascendente. Esta associa o leva à uma forma grave de insuficiência respiratória cujo sucesso do desmame da ventila o mecanica é dependente da capacidade da musculatura respiratória remanescente em compensar o trabalho respiratório excedente. Fisioterapia respiratória intensiva com treinamento da musculatura, corre o dos distúrbios metabólicos, tratamento das infec es respiratórias associadas à ventila o mecanica e otimiza o do suporte nutricional foram fundamentais para o sucesso do desmame.
Stigmata: como as marcas s?o usadas para marcar os consumidores
Le?o, André Luiz Maranh?o de Souza;Mello, Sérgio Carvalho Benício de;
Cadernos EBAPE.BR , 2011, DOI: 10.1590/S1679-39512011000100003
Abstract: despite the growing quest for knowledge about the importance of brands, we know little about how consumers attach meaning to them in their daily lives. with this in mind, we carried out this study to identify how consumers confer meanings to brands when interacting with each other, assuming that social interactions is a strong influence among consumers and, therefore, the impressions of some interfere with the judgments of others. to this end, an ethnography of communication was undertaken through participant observation of everyday interaction of people from different social groups. a key finding was that people use brands as a means of stigmatizing one another in social interactions. our findings align with the social theory of erving goffman, which may be based on a rich interpretation of this level of significance of brands by consumers. our results point to twenty-four forms of stigmatization by the marks, divided into three categories: "communal", "social" and "personal." in the end, we analyzed the possible contributions of our study for both academia and for brand management.
Institucionaliza??o como mecanismo de controle de marketing
Le?o, André Luiz Maranh?o de Souza;Mello, Sérgio Carvalho Benício de;
Revista de Administra??o Contemporanea , 2010, DOI: 10.1590/S1415-65552010000200005
Abstract: among management activities, control is the most neglected. however, monitoring becomes a key player as the area of marketing has continually sought out metrics to measure its results. upon analyzing the current perspective of marketing control, we conclude that it is contingential. as a result, some problems were identified. we suggest that a different, institutional perspective may be more adequate. for our analysis, we assumed as scope the perspective of service encounters. this choice was due to our belief that all businesses are - in essence - service-oriented, and that service encounters bring aspects of the external environment to the internal environment, as customers and contact employees are from the socio-cultural environment. with this in mind, the aim of this theoretical essay is to develop a marketing control process based on the meanings of the organization. however, we recognize that - as this is a long-term view - short-term interests may compromise it.
Atividades marcárias na vida cotidiana dos consumidores: descoberta de uma nova forma de se pensar as marcas?
Le?o, André Luiz Maranh?o de Souza;Mello, Sérgio Carvalho Benício de;
Revista de Administra??o Contemporanea , 2009, DOI: 10.1590/S1415-65552009000100007
Abstract: in spite of the growing importance placed on brands in contemporary marketing, we know little about the way consumers understand and define them. with this in mind, we carried out this exploratory study, with the objective of identifying what consumers say about brands when they interact with one another. to this end, we assume that, in social interactions, the impressions of some interfere with the judgment of others, enabling consumers to define certain brand aspects and express what they think about them. to access consumer brand thought, a communication ethnography was undertaken through participant observation of the interaction of individuals from different social groups in everyday life (hymes, 1986). this procedure led us to identify 38 brand aspects that we named as brand activities, based on the notion of speech activities, which assumes that what we say are actions (austin, 1990; wittgenstein, 2005). max weber's social theory and his typology of social action helped us to understand our research findings. a reflexive approach towards them prompted us to suggest the discovery of a new way of thinking brands, and in order to do this we propose a preliminary framework. finally, we discuss possible contributions both to academia and brand management.
Brand Activities in the Everyday Life of Consumers: Discovering a New Way of Thinking Brands?
André Luiz Maranh?o de Souza Le?o,Sérgio Carvalho Benício de Mello
Revista de Administra??o Contemporanea , 2009,
Abstract: In spite of the growing importance placed on brands in contemporary marketing, we know little about the way consumers understand and define them. With this in mind, we carried out this exploratory study, with the objective of identifying what consumers say about brands when they interact with one another. To this end, we assume that, in social interactions, the impressions of some interfere with the judgment of others, enabling consumers to define certain brand aspects and express what they think about them. To access consumer brand thought, a communication ethnography was undertaken through participant observation of the interaction of individuals from different social groups in everyday life (Hymes, 1986). This procedure led us to identify 38 brand aspects that we named as brand activities, based on the notion of speech activities, which assumes that what we say are actions (Austin, 1990; Wittgenstein, 2005). Max Weber’s social theory and his typology of social action helped us to understand our research findings. A reflexive approach towards them prompted us to suggest the discovery of a new way of thinking brands, and in order to do this we propose a preliminary framework. Finally, we discuss possible contributions both to academia and brand management.
Institucionaliza o como Mecanismo de Controle de Marketing
André Luiz Maranh?o de Souza Le?o,Sérgio Carvalho Benício de Mello
Revista de Administra??o Contemporanea , 2010,
Abstract: Among management activities, control is the most neglected. However, monitoring becomes a key player as the area of marketing has continually sought out metrics to measure its results. Upon analyzing the current perspective of marketing control, we conclude that it is contingential. As a result, some problems were identified. We suggest that a different, institutional perspective may be more adequate. For our analysis, we assumed as scope the perspective of service encounters. This choice was due to our belief that all businesses are – in essence – service-oriented, and that service encounters bring aspects of the external environment to the internal environment, as customers and contact employees are from the socio-cultural environment. With this in mind, the aim of this theoretical essay is to develop a marketing control process based on the meanings of the organization. However, we recognize that – as this is a long-term view – short-term interests may compromise it.
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