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Search Results: 1 - 10 of 307738 matches for " J.;Godoy Jr. "
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An evaporative and desiccant cooling system for air conditioning in humid climates
Camargo, J. R.;Godoy Jr, E.;Ebinuma, C. D.;
Journal of the Brazilian Society of Mechanical Sciences and Engineering , 2005, DOI: 10.1590/S1678-58782005000300005
Abstract: evaporative cooling operates using water and air as working fluids. it consists in water evaporation, through the passage of an air flow, thus decreasing the air temperature. this system has a great potential to provide thermal comfort in places where air humidity is low, being, however, less efficient where air humidity is high. a way to solve this problem is to use dehumidifiers to pre-conditioning the process air. this paper presents a system that can be used in humid climates coupling desiccant dehumidification equipment to evaporative coolers. the paper shows, initially, the main characteristics of the evaporative cooling and of the adsorption dehumidification systems. later on the coupled systems, in which occurs a dehumidification by adsorption in a counter flow rotary heat exchanger following the evaporate cooling of the air in evaporative coolers, are analyzed. the thermodynamic equations of state are also presented. following, this paper analyzes some operation parameters such as: reactivation temperature, r/p relationship (reactivation air flow/ process air flow) and the thermodynamic conditions of the entering air flow. the paper shows the conditions for the best operation point, with regard to thermal comfort conditions and to the energy used in the process. in addition this paper presents an application of the system in different climate characteristics of several tropical and equatorial cities.
An evaporative and desiccant cooling system for air conditioning in humid climates
Camargo J. R.,Godoy Jr E.,Ebinuma C. D.
Journal of the Brazilian Society of Mechanical Sciences and Engineering , 2005,
Abstract: Evaporative cooling operates using water and air as working fluids. It consists in water evaporation, through the passage of an air flow, thus decreasing the air temperature. This system has a great potential to provide thermal comfort in places where air humidity is low, being, however, less efficient where air humidity is high. A way to solve this problem is to use dehumidifiers to pre-conditioning the process air. This paper presents a system that can be used in humid climates coupling desiccant dehumidification equipment to evaporative coolers. The paper shows, initially, the main characteristics of the evaporative cooling and of the adsorption dehumidification systems. Later on the coupled systems, in which occurs a dehumidification by adsorption in a counter flow rotary heat exchanger following the evaporate cooling of the air in evaporative coolers, are analyzed. The thermodynamic equations of state are also presented. Following, this paper analyzes some operation parameters such as: reactivation temperature, R/P relationship (reactivation air flow/ process air flow) and the thermodynamic conditions of the entering air flow. The paper shows the conditions for the best operation point, with regard to thermal comfort conditions and to the energy used in the process. In addition this paper presents an application of the system in different climate characteristics of several tropical and equatorial cities.
Immunoexpression of CD95 in chronic gastritis and gastric mucosa-associated lymphomas
Vassallo J.,Godoy Jr. C.E.,Godoy C.E.,Chagas C.A.
Brazilian Journal of Medical and Biological Research , 2004,
Abstract: CD95 (Fas/APO-1)-mediated apoptosis plays an important role in immunological regulation and is related to the pathogenesis of autoimmune diseases. Immunoexpression of CD95 has been reported to frequently occur in low grade non-Hodgkin lymphomas, especially of post-germinal center histogenesis, among which those originating in mucosa-associated lymphoid tissue (MALT lymphomas). However, there is no report comparing in situ immunoexpression of this marker in lymphomas and the hyperplastic lymphoid reaction (chronic gastritis) related to Helicobacter pylori infection. The purpose of the present research was to compare the intensity of lymphoid CD95 immunoexpression in 15 cases of H. pylori-related chronic gastritis and 15 gastric MALT lymphomas. CD95 (anti-CD95) was detected by an immunoperoxidase technique in paraffin sections using the catalyzed amplification system. Graduation of reaction intensity (percentage of CD95-positive cells) was semiquantitative, from 1+ to 4+. Nine cases of chronic gastritis were 4+, five 2+ and one 1+. Three lymphomas were 4+, three 3+, four 2+, four 1+, and one was negative. Although 14 of 15 lymphomas were positive for CD95, the intensity of the reaction was significantly weaker compared to that obtained with gastric tissue for patients with gastritis (P = 0.03). The difference in CD95 immunoexpression does not seem to be useful as an isolated criterion in the differential diagnosis between chronic gastritis and MALT lymphomas since there was overlapping of immunostaining patterns. However, it suggests the possibility of a pathogenetic role of this apoptosis-regulating protein in MALT lymphomas.
Immunoexpression of CD95 in chronic gastritis and gastric mucosa-associated lymphomas
Vassallo, J.;Godoy Jr., C.E.;Godoy, C.E.;Chagas, C.A.;Metze, K.;Trevisan, M.A.S.;
Brazilian Journal of Medical and Biological Research , 2004, DOI: 10.1590/S0100-879X2004000900015
Abstract: cd95 (fas/apo-1)-mediated apoptosis plays an important role in immunological regulation and is related to the pathogenesis of autoimmune diseases. immunoexpression of cd95 has been reported to frequently occur in low grade non-hodgkin lymphomas, especially of post-germinal center histogenesis, among which those originating in mucosa-associated lymphoid tissue (malt lymphomas). however, there is no report comparing in situ immunoexpression of this marker in lymphomas and the hyperplastic lymphoid reaction (chronic gastritis) related to helicobacter pylori infection. the purpose of the present research was to compare the intensity of lymphoid cd95 immunoexpression in 15 cases of h. pylori-related chronic gastritis and 15 gastric malt lymphomas. cd95 (anti-cd95) was detected by an immunoperoxidase technique in paraffin sections using the catalyzed amplification system. graduation of reaction intensity (percentage of cd95-positive cells) was semiquantitative, from 1+ to 4+. nine cases of chronic gastritis were 4+, five 2+ and one 1+. three lymphomas were 4+, three 3+, four 2+, four 1+, and one was negative. although 14 of 15 lymphomas were positive for cd95, the intensity of the reaction was significantly weaker compared to that obtained with gastric tissue for patients with gastritis (p = 0.03). the difference in cd95 immunoexpression does not seem to be useful as an isolated criterion in the differential diagnosis between chronic gastritis and malt lymphomas since there was overlapping of immunostaining patterns. however, it suggests the possibility of a pathogenetic role of this apoptosis-regulating protein in malt lymphomas.
Effects of Androgen Receptor and Androgen on Gene Expression in Prostate Stromal Fibroblasts and Paracrine Signaling to Prostate Cancer Cells
Matthew J. Tanner,R. Charles Welliver Jr,Mengqian Chen,Michael Shtutman,Alejandro Godoy,Gary Smith,Badar M. Mian,Ralph Buttyan
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0016027
Abstract: The androgen receptor (AR) is expressed in a subset of prostate stromal cells and functional stromal cell AR is required for normal prostate developmental and influences the growth of prostate tumors. Although we are broadly aware of the specifics of the genomic actions of AR in prostate cancer cells, relatively little is known regarding the gene targets of functional AR in prostate stromal cells. Here, we describe a novel human prostate stromal cell model that enabled us to study the effects of AR on gene expression in these cells. The model involves a genetically manipulated variant of immortalized human WPMY-1 prostate stromal cells that overexpresses wildtype AR (WPMY-AR) at a level comparable to LNCaP cells and is responsive to dihydrotestosterone (DHT) stimulation. Use of WPMY-AR cells for gene expression profiling showed that the presence of AR, even in the absence of DHT, significantly altered the gene expression pattern of the cells compared to control (WPMY-Vec) cells. Treatment of WPMY-AR cells, but not WPMY-Vec control cells, with DHT resulted in further changes that affected the expression of 141 genes by 2-fold or greater compared to vehicle treated WPMY-AR cells. Remarkably, DHT significantly downregulated more genes than were upregulated but many of these changes reversed the initial effects of AR overexpression alone on individual genes. The genes most highly effected by DHT treatment were categorized based upon their role in cancer pathways or in cell signaling pathways (transforming growth factor-β, Wnt, Hedgehog and MAP Kinase) thought to be involved in stromal-epithelial crosstalk during prostate or prostate cancer development. DHT treatment of WPMY-AR cells was also sufficient to alter their paracrine potential for prostate cancer cells as conditioned medium from DHT-treated WPMY-AR significantly increased growth of LNCaP cells compared to DHT-treated WPMY-Vec cell conditioned medium.
Combate à lagarta do cartucho Spodoptera frugiperda (J.E.Smith, 1797), em planta??o de milho
Corte, C.R.;Almeida, S.L.;Takaoka, M.;Blanco Jr., R.;Godoy, J.M.T.;Mariconi, F.A.M.;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1985, DOI: 10.1590/S0071-12761985000100010
Abstract: a corn field work was carried out in tietê, state of s?o paulo, brazil in order to control the fall armyworm. the treatments, with four repetitions, and the quantities of active ingredients, per hectare, were as follows: a - check; b - bendiocarb, 250 g; c - hydrazone bts 54439, 250 g ; d - trichlorfon, 250 g ; e - pyrethroid biphenthrin, 30 g ; f - pyrethroid fmc 65318, 30 g ; g - thiodicarb, 200 g ; h - triazophos, 200 g. the best results were obtained with pyrethroid fmc 65318, thiodicarb and pyrethroid biphenthrin.
Relativized Quantum Physics Generating N-Valued Coulomb Force and Atomic Hydrogen Energy Spectrum  [PDF]
Walter J. Christensen Jr.
Journal of Modern Physics (JMP) , 2015, DOI: 10.4236/jmp.2015.63025
Abstract: Though not well-known, Einstein endeavored much of his life to general-relativize quantum mechanics, (rather than quantizing gravity). Albeit he did not succeed, his legacy lives on. In this paper, we begin with the general relativistic field equations describing flat spacetime, but stimulated by vacuum energy fluctuations. In our precursor paper, after straightforward general relativistic calculations, the resulting covariant and contravariant energy-momentum tensors were identified as n-valued operators describing graviton excitation. From these two operators, we were able to generate all three boson masses (including the Higgs mass) in precise agreement as reported in the 2010 CODATA (NIST); moreover local, as-well-as large-scale, accelerated spacetimes were shown to naturally occur from this general relativized quantum physics approach (RQP). In this paper, applying the same approach, we produce an n-valued Coulombs Force Law leading to the energy spectrum for atomic hydrogen, without assuming quantized atomic radii, velocity and momentum, as Bohr did.
God Is a Porcupine—Brain, Consciousness and Spacetime Physics  [PDF]
Walter J. Christensen Jr.
Journal of Modern Physics (JMP) , 2017, DOI: 10.4236/jmp.2017.88084
Abstract: Whereas the human body requires a vast numbers of atoms to maintain its intricate anatomical functions, we assert that the human brain requires “something extra” to carry out its higher mental and emotional functions. Recently, neuroscientists are beginning to suspect brain cells are not fast enough, or intricate enough, to correlate complex spatiotemporal information into cognitive understanding. They conclude that spacetime fields may be necessary to assist the brain during neurological processing—in much the same way magnetic and electric fields are essential for the propagation of light. This “something extra,” we argue, is spacetime itself—where structures in the brain, called facilitators (somewhat like Descartes pineal gland), have evolved biologically in such a way, so as to be able to store and retrieve spacetime quanta for the formation and generation of consciousness and memory. In this way, cognition is not a thing complete. Rather it is emergent, and accumulates as discretized spacetime quanta in the brain so rapidly, we perceive our own awareness to be continuous, events spontaneous. In this paper, we consider spacetime to be a field (like all quantum fields), which can be excited into quanta particles called gravitons. We then apply this quanta excitation to help explain the brain’s cognitive processes. If the brain has indeed evolved to interact with discretized spacetime, then with the advent of improved functional imaging equipment, we might be able to map detailed correlations between neural processes, conscious experience and spacetime. In so doing, it might be possible to learn more about the fundamental workings of spacetime itself.
Optical properties of type-I and II quantum dots
Iikawa, F.;Godoy, M. P. F.;Nakaema, M. K. K.;Brasil, M. J. S. P.;Maialle, M. Z.;Degani, M. A.;Ribeiro, E.;Medeiros-Ribeiro, G.;Carvalho Jr., W.;Brum, J. A.;
Brazilian Journal of Physics , 2004, DOI: 10.1590/S0103-97332004000400004
Abstract: this paper focuses on recent results on the optical properties of self-assembled quantum dots involving type-i ingaas/gaas and type-ii inp/gaas interfaces. in the first part, we focus on the ingaas/gaas quantum dots, that were used to study the influence of a two-dimensional electron gas on the optical emission of single quantum dots. in the second part, we present the results on type-ii inp/gaas quantum dots. in this system, we observed an experimental evidence indicating that the model used to interpret the blue shift of the type-ii quantum well optical emission cannot be applied to type-ii quantum dots.
La genética, los marcadores moleculares y la conservación de especies
J.A. Godoy
Ecosistemas , 2009,
Abstract: La presencia de la genética y los marcadores moleculares en la ecología y la biología evolutiva no ha dejado de crecer en las últimas décadas, y la biología de la conservación no ha sido una excepción. Por un lado, estudios teóricos, experimentales y empíricos han documentado los cambios genéticos que las poblaciones sufren como consecuencia de la fragmentación y el declive, y han confirmado las consecuencias negativas que éstos pueden tener para la viabilidad poblacional y la evolución adaptativa. Por otro lado, la aplicación de marcadores moleculares y la rica teoría evolutiva aporta información sobre la historia evolutiva,la demografía, la ecología y el comportamiento de las especies que puede ayudar en la evaluación de riesgos, la asignación de prioridades, la delimitación de unidades y el dise o de estrategias de conservación eficaces. Además, las técnicas moleculares aportan métodos para la asignación de muestras a especies, poblaciones o individuos y para la identificación de sexo que, sobre todo cuando se combinan con materiales obtenidos de manera no invasiva, aportan herramientas eficientes para la conservación y la gestión de especies amenazadas. La presencia de la genética en conservación se ha visto impulsada en los últimos a os por la aparición de nuevos marcadores moleculares, el uso de muestras degradadas o antiguas, y por significativos avances en los métodos de análisis de datos que aprovechan desarrollos teóricos importantes como la teoría del coalescente. En particular, el salto a una escala genómica promete salvar la tradicional limitación impuesta por la naturaleza predominantemente neutral de la variación explorada con los marcadores moleculares tradicionales y ofrecer acceso a la base genética de la variación adaptativa. No obstante, la superación de este y otros retos pendientes requerirá un mayor nivel de interacción entre enfoques empíricos, teóricos y experimentales, y entre las disciplinas de la genética y la ecología. La probada importancia de la variación genética para la persistencia de las especies y la sustancial contribución de las técnicas genéticas a la práctica conservacionista demandan una mayor presencia de la genética en la conservación de especies, tanto en sus aspectos normativos como de gestión.
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