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Search Results: 1 - 10 of 1512 matches for " Alencar Araripe "
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A crian?a e o adolescente, representa??es sociais e processo constituinte
Pinheiro, ?ngela de Alencar Araripe;
Psicologia em Estudo , 2004, DOI: 10.1590/S1413-73722004000300003
Abstract: the purpose of this study was too understand the dynamic of the social representations concerning children and adolescents, among the social representatives who participated in the 1987-88 national constitution assembly, in which children and adolescents were given their legal protection rights. the public dealings granted to the child and the adolescent, in the social brazilian history were approached as a locus of representations, spaces and social practices. the investigation advanced into its empirical universe, the national constitution assembly, which elaborated the federal constitution, with legal innovations for the child and the adolescent. the analysis lead to discoveries in a two-way direction: the distancing between the constitution process and the constitution text; the distancing of the constitution outcome and the brazilian social thoughts. brazil after the constituent assembly is updated, having as analytical reference the social representations of children and adolescents.
Cooperativismo no mercado informacional do Mercosul: uma alternativa Cooperativismo en el Mercado Informacional del Mercosur: una Alternativa
Fatima Maria Alencar Araripe,Rossana Coely de Oliveira Moura
Informa??o & Informa??o , 2000, DOI: 10.5433/1981-8920.2000v5n2p
Abstract: O texto enfoca o cenário atual do processo de globaliza o como o grande propulsor do desencadeamento das preocupa es das na es em formar alian as por blocos econ micos. Apresenta a globaliza o como um coadjuvante do fator desemprego e aponta o cooperativismo como uma alternativa de trabalho no mercado da informa o. Nesse contexto, ressalta a importancia das bases informacionais como pressuposto básico para a adequa o dos produtos e servi os que atendam a essa nova ordem social.
Efeitos da Insula??o Escrotal sobre a Biometria Testicular e Parametros Seminais em Carneiros da Ra?a Santa Inês Criados no Estado do Ceará
Moreira, Emerson Pinto;Moura, Arlindo de Alencar Araripe;Araújo, Airton Alencar de;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000700007
Abstract: a study was conducted to determine the effect of heat stress on semen criteria and testis size in santa inês hairy rams, in the state of ceará, northeast of brazil. the scrotum of eight adult rams was insulated for seven days. animals were evaluated twice before insulation and, after insulation, at 12 different periods until 118 days. scrotal insulation did not affect semen volume, but ph was increased after eight days, returning to normal values after 15 days. sperm concentration was reduced eight days after insulation was removed and animals became azzospermic between 33 and 50 days. after 79 days, sperm concentration returned to values similar to those observed before treatment. scrotal circumference (26.4 cm) decreased to 22.4 cm eight days after insulation and to 21 cm at 21 days, but returned to 24.9 cm after 50 days. moreover, sperm motility and vigor were reduced right after insulation was removed and returned to normal profiles only after 90 days. before treatment, there were 1.7% of sperm cells with primary defects and 9.9% with secondary defects. right after insulation, sperm cells with primary defects increased to 3.6% and those with secondary defects, to 43.4%, and after eight days, these values increased to 8.4 and 60.4%, respectively. from 15 to 60 days, sperm cells with primary defects varied from 27.3 to 16.8%, while those with secondary defects showed only small variations (39.9 to 39%). at the end of the experiment (118 days after insulation), primary defects were reduced to 0.7%, but the percentage of cells with secondary defects was still high (24.4 %). therefore, heat stress caused temporary interruption of sperm production in the ram and sperm motility and secondary defects seemed to be the most sensitive criteria.
Desenvolvimento testicular, espermatogênese e concentra??es hormonais em touros Angus
Aguiar, Gyselle Viana;Araújo, Airton Alencar;Moura, Arlindo de Alencar Araripe;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000600008
Abstract: this study aimed to evaluate changes in hormone secretion and in seminiferous epithelium of angus bulls between 10 and 38 weeks of age. samples of testicular parenchyma and blood were collected from 25 animals castrated in 4 week intervals. traits associated to testicular development and quantitative aspects of spermatogenesis and hormonal concentrations were transformed by logarithm before analyses of variance. changes in testis and seminiferous tubule diameter and testis weight were more pronounced after 26 weeks of age. the percentage of testicular parenchyma occupied by seminiferous tubules increased from 49.3 to 75.2% from 10 to 38 weeks. most tubules (>90%) had only sertoli cells at 10 and 14 weeks, but the number of tubules with gonocytes and a spermatogonia increased at 18 (13.8±1.7%) and 22 weeks (19±1%). tubules with b and intermediate spermatogonia became predominant at 26 weeks (24.5±8.2%) and those with spermatocytes as the most advanced germ cell type were more evident at 30 weeks (42.3±9.9%). round spermatids were detected at 26 weeks and at 38 weeks of age, 62.3±1.5% of all tubules had either elongate or mature spermatids. variations in testis growth (specially testis weight) after 26 weeks were coincident with the establishment of meiosis in the seminiferous tubules, morphological alterations in nucleus and nucleolus of the sertoli cells (indicators of sertoli cell differentiation), lower levels of androstenedione and significant increases in testosterone and estradiol 17b. associations between testis development and concentrations of fsh and lh were less evident.
Efeitos da Insula o Escrotal sobre a Biometria Testicular e Parametros Seminais em Carneiros da Ra a Santa Inês Criados no Estado do Ceará
Moreira Emerson Pinto,Moura Arlindo de Alencar Araripe,Araújo Airton Alencar de
Revista Brasileira de Zootecnia , 2001,
Abstract: Um estudo foi conduzido com a finalidade de avaliar o efeito do estresse térmico sobre parametros seminais e biometria testicular em carneiros Santa Inês. Oito animais adultos foram submetidos à insula o escrotal por sete dias. Realizaram-se duas avalia es antes da insula o e, após este período, doze coletas durante 118 dias. A insula o escrotal n o causou varia es no volume dos ejaculados, mas o pH seminal apresentou valores elevados oito dias após a insula o, retornando à normalidade após 15 dias. Ocorreu redu o na concentra o espermática oito dias após a insula o e os animais apresentaram azoospermia entre 33 e 50 dias. Depois de 79 dias, a concentra o espermática retornou aos padr es observados antes da insula o. A circunferência escrotal (26,4 cm) reduziu para 22,4 cm oito dias após o término do tratamento e para 21 cm aos 21 dias, mas retornou a valores próximos à normalidade (24,9 cm) aos 50 dias. Foi observado decréscimo na motilidade e vigor espermático a partir da retirada da bolsa e o retorno destes parametros à normalidade ocorreu somente após 90 dias. Antes da insula o, 1,7% dos espermatozóides apresentaram-se com defeitos maiores e 9,9 %, com defeitos menores. Na primeira coleta após a insula o, 3,6% das células apresentaram defeitos maiores e 43,4 %, defeitos menores; aos oito dias, estes valores foram de 8,4 e 60,4%, respectivamente. Entre 15 e 60 dias após a insula o, a percentagem de defeitos maiores variou entre 27,3 e 16,8%, enquanto a de defeitos menores permaneceu em torno de 39%. Aos 118 dias após a insula o, os defeitos maiores representaram somente 0,7%, mas o número de células com defeitos menores continuou elevado (24,4 %). Portanto, o estresse térmico causou interrup o temporária do processo de produ o espermática e os parametros relativos à motilidade e defeitos menores apresentaram maior susceptibilidade.
Aspectos do licenciamento ambiental da carcinicultura na APA do Delta do Parnaíba
Araripe, Hamilton Gondim de Alencar;Lopes, Jo?o Batista;Bastos, Maria Eugênia Gon?alves;
Ambiente & Sociedade , 2006, DOI: 10.1590/S1414-753X2006000200008
Abstract: the present research examines the environmental matter in the environmental protection area (epa) of the delta of the parnaíba river, focusing on the ambient licensing value. technical visits to all companies installed in the area until the first semester of 2004 and non-structured interviews were carried out; the existing legislation was raised; and the environmental studies and reports of technical inspections performed by ibama were evaluated. the conclusion was that the adjustment made by ibama in the ambient licensing process of what is an area of permanent preservation (app) in the mangrove is the critical point to the carciniculture activity.
Patologia do bloqueio atrioventricular na cardiomiopatia por depósito de desmina
Benvenuti, Luiz Alberto;Aiello, Vera Dermarchi;Falc?o, Breno Alencar Araripe;Lage, Silvia Gelás;
Arquivos Brasileiros de Cardiologia , 2012, DOI: 10.1590/S0066-782X2012000100017
Abstract: generally, restrictive cardiomyopathy due to desmin deposition is characterized by restriction to ventricular diastolic filling and different degrees of atrioventricular block (avb). in this report, we describe the pathological changes of the cardiac conduction system related to avb. the sinus node, the compact node, and the penetrating bundle (bundle of his) had no abnormalities, however, there was extensive fibrosis of the terminal portions of the branching bundle and the beginning of the left and right bundles at the top of the ventricular septum. the pathogenesis of this fibrous replacement is probably the same that leads to extensive fibrosis of the working ventricular myocardium, and remains to be elucidated.
Análise do desempenho produtivo de diversos grupos genéticos Holandês x Gir no Brasil
Facó, Olivardo;L?bo, Raimundo Nonato Braga;Martins Filho, Raimundo;Moura, Arlindo de Alencar Araripe;
Revista Brasileira de Zootecnia , 2002, DOI: 10.1590/S1516-35982002000800010
Abstract: total milk yield per lactation (pl), milk yield in 305 days (pl305) and lactation length (dl) were estimated based on records of the brazilian association of girolando breeders (3,574 lactations). milk production was recorded monthly and 10.8% of the herds were raised under an extensive feeding system, 67.9% under a semi-intensive feeding system and 21.3% under an intensive feeding system. data were analyzed through the least square method by glm procedure (sas, 1996). preliminary analysis indicated a high interaction between genetic group and feeding system. thus, the performance of genetic groups was evaluated within each feeding system. genetic effects of additive difference between (g) holstein and gir breeds, dominance (d) and additive x additive epistatic interactions (gg) were also studied. it was observed that, in some cases, the effects of epistatic interactions should be taken into account. moreover, increasing the proportion of holstein-friesian genes did not have any significant effect on milk yield when herds were raised under poor management conditions. however, as such conditions improved, crosses with higher proportion of holstein tended to show better performance.
Desenvolvimento ponderal e testicular, concentra??es periféricas de testosterona e características de abate em touros da ra?a Nelore
Moura, Arlindo de Alencar Araripe;Rodrigues, Glaycione Costa;Martins Filho, Raimundo;
Revista Brasileira de Zootecnia , 2002, DOI: 10.1590/S1516-35982002000400017
Abstract: an experiment was carried out to evaluate testicular and body growth, peripheral concentrations of testosterone (t) and carcass parameters, from 10 to 30 months of age, in nelore bulls (n=27). between 11 and 21 months, animals were treated with gnrh and blood samples taken 0, 1.5 and 3.0 hours afterwards. animals were slaughtered at 30 months. body weight (bw) varied from 195.2 ± 3.8 kg to 439.1 ± 8.1 kg between 10 and 30 months of age and the ratio bw/carcasss was 55.4 ± 2.3%. testicular (tw) and epididimal weight (ew) at slaughter were 160.9 ± 7.7 g and 20.5 ± 0.62 g, respectively. testosterone secretion reached higher levels between 16 and 18 months and treatment with gnrh caused increases in testosterone at all ages. moreover, basal concentrations of t were related to those determined after gnrh (r = 0.41 to 0.63). body weight from 10 to 30 months was correlated with sc at all ages (r = 0.41 to 0.70) and with testicular (r = 0.48 to 0.62) and epididymal weight (r = 0.48 to 0.73) at 30 months. carcass weight was related to tw (r = 0.45) and ew (r = 0.63). body weight evaluated from 10 to 30 months was related to carcass weight (r = 0.65 to 0.93), but the ratio bw/carcass did not present any correlation with sc, tw, bw or testosterone levels. scrotal circumference at 30 months was related to sc from 10 to 25 months (r = 0.51 to 0.89). therefore, testis criteria since prepubertal ages are potential indicators of body growth and carcass weight in adult bulls.
Fisiopatologia da esquizofrenia: aspectos atuais
Araripe Neto, Ary Gadelha de Alencar;Bressan, Rodrigo Affonseca;Busatto Filho, Geraldo;
Revista de Psiquiatria Clínica , 2007, DOI: 10.1590/S0101-60832007000800010
Abstract: background: schizophrenia is one of the most intriguing and studied psychiatric diseases and its physiopathology has advanced a lot in the last century. objective: to review the most important advances in the physiopathology of schizophrenia. method: review of the literature of each proposed topic by articles searched in medline and/or chosen accordingly the authors? experience. results: the dopaminergic hypothesis was one of the first ethiological theories and until today is among the ones that presents the most consistent evidences. however, it fails to explain important features found in schizophrenia, such as the natural history, the cognitive impairments and the structural abnormalities. evidences provided by epidemiological studies of genetic and environmental risk factors, associated with the findings of neuropathological and neuroimaging studies, suggest an interactive model with several factors acting together to create a global alteration of the brain development. conclusion: the physiophatology of schizophrenia has advanced a lot in the last century, evolving from unicausal theories towards more complex models that consider the interaction among several genetic and environmental factors.
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