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Search Results: 1 - 10 of 4115 matches for " Caio Leal "
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Considera es sobre a jurisprudencializa o do Direito
Caio Leal
Revista de Direito dos Monitores da Universidade Federal Fluminense , 2009,
Abstract: Este estudo procura analisar a jurisprudencializa o do direito à luz do preenchimento da inefetividade do legislador e do envelhecimento das codifica es, tomando a jurisprudência como fonte [criadora] do direito. Dentre as considera es, uma análise de caso e um passeio pelos campos da Teoria Geral do Direito, do Direito Constitucional e do Direito Penal.
A LEGITIMACY OF TRADE UNION ASSOCIATIONS ACTIVE AND TRADE UNION FEDERATIONS for the bringing of direct actions of unconstitutionality A LEGITIMIDADE ATIVA DAS ASSOCIA ES SINDICAIS E DAS FEDERA ES SINDICAIS PARA A PROPOSITURA DE A ES DIRETAS DE INCONSTITUCIONALIDADE
Caio Freire Leal
Revista de Direito dos Monitores da Universidade Federal Fluminense , 2010,
Abstract: This text explores the possibility of new agents promote the action of the Supreme Court in the concentrated control of constitutionality, making a proper reading of the constitutional permissive regarding trade union confederations and associations of national scope. Esse texto explora a possibilidade de novos agentes promoverem a atua o do Supremo Tribunal Federal no controle concentrado de constitucionalidade, fazendo uma leitura adequada do permissivo constitucional referente às confedera es sindicais e entidades de classe de ambito nacional.
Compósito de resina de poliéster insaturado com baga?o de cana-de-a?úcar: influência do tratamento das fibras nas propriedades
Sanchez, Elisabete M. S.;Cavani, Claudia S.;Leal, Claudinete V.;Sanchez, Caio G.;
Polímeros , 2010, DOI: 10.1590/S0104-14282010005000034
Abstract: the aim of this work is to evaluate the influence of the sugar cane bagasse naoh treatment in the mechanical and dynamic-mechanical properties, in the thermal stability, density and water absorption, when used in unsaturated polyester resin/sugar cane bagasse composite. the sugar cane bagasse was submitted to the chemical treatment with alkaline solution of naoh. the treatment improves the impact and flexural elasticity modulus when compared with resin without fibers, in addition to the adhesion of the fibers with the matrices, but does not improve significantly the tensile elasticity modulus. the surfaces of the impact fracture were analyzed by sem.
Moth Sex Pheromone Receptors and Deceitful Parapheromones
Pingxi Xu, Stephen F. Garczynski, Elizabeth Atungulu, Zainulabeuddin Syed, Young-Moo Choo, Diogo M. Vidal, Caio H. L. Zitelli, Walter S. Leal
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0041653
Abstract: The insect's olfactory system is so selective that male moths, for example, can discriminate female-produced sex pheromones from compounds with minimal structural modifications. Yet, there is an exception for this “lock-and-key” tight selectivity. Formate analogs can be used as replacement for less chemically stable, long-chain aldehyde pheromones, because male moths respond physiologically and behaviorally to these parapheromones. However, it remained hitherto unknown how formate analogs interact with aldehyde-sensitive odorant receptors (ORs). Neuronal responses to semiochemicals were investigated with single sensillum recordings. Odorant receptors (ORs) were cloned using degenerate primers, and tested with the Xenopus oocyte expression system. Quality, relative quantity, and purity of samples were evaluated by gas chromatography and gas chromatography-mass spectrometry. We identified olfactory receptor neurons (ORNs) housed in trichoid sensilla on the antennae of male navel orangeworm that responded equally to the main constituent of the sex pheromone, (11Z,13Z)-hexadecadienal (Z11Z13-16Ald), and its formate analog, (9Z,11Z)-tetradecen-1-yl formate (Z9Z11-14OFor). We cloned an odorant receptor co-receptor (Orco) and aldehyde-sensitive ORs from the navel orangeworm, one of which (AtraOR1) was expressed specifically in male antennae. AtraOR1?AtraOrco-expressing oocytes responded mainly to Z11Z13-16Ald, with moderate sensitivity to another component of the sex pheromone, (11Z,13Z)-hexadecadien-1-ol. Surprisingly, this receptor was more sensitive to the related formate than to the natural sex pheromone. A pheromone receptor from Heliothis virescens, HR13 ( = HvirOR13) showed a similar profile, with stronger responses elicited by a formate analog than to the natural sex pheromone, (11Z)-hexadecenal thus suggesting this might be a common feature of moth pheromone receptors.
Evolutionary Changes in the Complexity of the Tectum of Nontetrapods: A Cladistic Approach
Caio Maximino
PLOS ONE , 2008, DOI: 10.1371/journal.pone.0003582
Abstract: Background The tectum is a structure localized in the roof of the midbrain in vertebrates, and is taken to be highly conserved in evolution. The present article assessed three hypotheses concerning the evolution of lamination and citoarchitecture of the tectum of nontetrapod animals: 1) There is a significant degree of phylogenetic inertia in both traits studied (number of cellular layers and number of cell classes in tectum); 2) Both traits are positively correlated accross evolution after correction for phylogeny; and 3) Different developmental pathways should generate different patterns of lamination and cytoarchitecture. Methodology/Principal Findings The hypotheses were tested using analytical-computational tools for phylogenetic hypothesis testing. Both traits presented a considerably large phylogenetic signal and were positively associated. However, no difference was found between two clades classified as per the general developmental pathways of their brains. Conclusions/Significance The evidence amassed points to more variation in the tectum than would be expected by phylogeny in three species from the taxa analysed; this variation is not better explained by differences in the main course of development, as would be predicted by the developmental clade hypothesis. Those findings shed new light on the evolution of an functionally important structure in nontetrapods, the most basal radiations of vertebrates.
O problema da autoria na teoria literária: apagamentos, retomadas e revis?es
Gagliardi, Caio;
Estudos Avan?ados , 2010, DOI: 10.1590/S0103-40142010000200018
Abstract: the latest discussions about authorship are closely related to the searching for the meaning of the text. because of that, the authorship is being understood as one of the most controversial subjects in literature theory. the first two parts of this paper comprehend a critic and sistematic analysis of 1. the author refusal as source of the text meaning (proust, eliot, croce, wimsatt and beardsley, derrida, barthes and foucault), and 2. the defense and reviewing of this concept (booth, bloom, eco e compagnon). and in the last part, 3. it is proposed a particular hypothesis of analises and interpretation of the authorship, through a change of contexts: the recurrence to the heteronomy concept, by fernando pessoa.
Modulation of nociceptive-like behavior in zebrafish (Danio rerio) by environmental stressors
Maximino, Caio;
Psychology & Neuroscience , 2011, DOI: 10.3922/j.psns.2011.1.017
Abstract: zebrafish have been demonstrated to react consistently to noxious chemical stimuli and present reliable phenotypes of stress, fear, and anxiety. in this article, we describe the modulation of nociceptive-like responses of zebrafish to fear-, stress-, and anxiety-eliciting situations. animals were exposed to an alarm substance, confinement stress, or a novel environment before being injected with 1% acetic acid in the tail. the alarm substance and confinement stress reduced the display of erratic movements and tail-beating behavior elicited by acetic acid. the novelty of the environment, in contrast, increased the frequency of tail-beating behavior. the results suggest that descending modulatory control of nociception exists in zebrafish, with apparent fear- and stress-induced analgesia and anxiety-induced hyperalgesia.
Estudo de raios cósmicos utilizando uma camara de nuvens de baixo custo
Laganá, Caio;
Revista Brasileira de Ensino de Física , 2011, DOI: 10.1590/S1806-11172011000300002
Abstract: using images from cosmic rays interactions obtained with a low cost cloud chamber, the main observed phenomena in such an experiment are presented, discussed and classified.
água escondida
Caio Reisewitz
ARS (S?o Paulo) , 2011, DOI: 10.1590/s1678-53202011000100001
Abstract:
Modulation of nociceptive-like behavior in zebrafsh (Danio rerio) by environmental stressors
Caio Maximino
Psychology & Neuroscience , 2011,
Abstract: Zebrafsh have been demonstrated to react consistently to noxious chemical stimuli and present reliable phenotypes of stress, fear, and anxiety. In this article, we describe the modulation of nociceptive-like responses of zebrafsh to fear-, stress-, and anxiety-eliciting situations. Animals were exposed to an alarm substance, confnement stress, or a novel environment before being injected with 1% acetic acid in the tail. The alarm substance and confnement stress reduced the display of erratic movements and tail-beating behavior elicited by acetic acid. The novelty of the environment, in contrast, increased the frequency of tail-beating behavior. The results suggest that descending modulatory control of nociception exists in zebrafsh, with apparent fear- and stress-induced analgesia and anxiety-induced hyperalgesia.
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