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Search Results: 1 - 10 of 22828 matches for " Alexandre Cruz Dantas "
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Oxidative stress profile in goats supplemented or not with selenium and vitamin E and submitted to scrotal insulation Perfil de marcadores do estresse oxidativo em caprinos suplementados ou n o com selênio e vitamina E e submetidos à insula o escrotal
Janaína Azevedo Guimar?es,Guadalupe Carvalho Xavier,Pierre Castro Soares,Alexandre Cruz Dantas
Semina : Ciências Agrárias , 2011,
Abstract: To evaluate the effect of supplementation with selenium and vitamin E in the diet of goats induced to scrotal insulation (SI) on the profile of biochemical markers of systemic oxidative metabolism 12 animals were randomly divided into two groups: G1 - no supplementation G2 - supplemented with selenium (0.1 mg / kg body weight of sodium selenite) and vitamin E (0.3 IU / kg body weight). At the end of the adjustment period of 30 days, the scrotal insulation (SI) was performed with the placement of plastic bags in the testes for 18 days. Supplementation with Se + vitamin E began 60 days before induction of SI and maintained for 42 days after the end of SI, corresponding to post-insulation (PSI). Blood samples were obtained by jugular venipuncture to obtain total blood for analysis of reduced glutathione (GSH) and plasma for analysis of thiobarbituric acid reactive substance (TBARS) and determination of ferric reducing ability of plasma (FRAP). No effect of dietary supplementation with Se + vitamin E on the profile of all the variables studied, but there was systemic oxidative action understood by a significant decrease of GSH during the SI, with a gradual increase in the PSI period, as well as lower average of FRAP observed during the SI and the highest average in the period from PSI. It was concluded that analysis of the activity of reduced glutathione (GSH) and concentrations of thiobarbituric acid reactive substances (TBARS) and ferric reducing ability of plasma (FRAP) are recommended laboratory methods to evaluate the systemic response to oxidative damage caused by thermal stress testis in goats. Para avaliar o efeito da suplementa o com selênio e vitamina E na dieta de caprinos induzidos à insula o escrotal (IE) sobre o perfil de indicadores bioquímicos do metabolismo oxidativo sistêmico foram utilizados 12 animais, os quais foram distribuídos aleatoriamente em dois grupos: G1 - sem suplementa o; G2 - suplementados com selênio (0,1 mg/Kg de peso vivo de selenito de sódio) e vitamina E (0,3 UI/Kg de peso vivo). Ao término do período de adapta o de 30 dias, realizou-se a indu o da insula o escrotal (IE) com coloca o de bolsas plásticas nos testículos por período de 18 dias. A suplementa o com Se e Vitamina E teve início 60 dias antes da indu o da IE e mantida durante 42 dias após o término da IE, correspondendo à fase pós-insula o (PIE). Amostras de sangue foram obtidas por venopun o jugular para obten o de sangue total para análise de glutationa reduzida (GSH) e plasma para análise de substancia reativa ao ácido tiobarbitúrico (TBARS) e det
SURTO DE SARNA CORIóPTICA EM CAPRINOS NA CIDADE DE GRAVATá, REGI O AGRESTE DO ESTADO DE PERNAMBUCO OUTBREAK OF CHORIOPTIC MANGE IN GOATS IN THE CITY OF GRAVATá IN PERNAMBUCO′S AGRESTE REGION
Janaina Azevedo Guimar?es,Alexandre Cruz Dantas,Ant?nio Carlos Lopes Camara,José Augusto Bastos Afonso
Ciência Animal Brasileira , 2009,
Abstract: A sarna corióptica é de rara ocorrência em caprinos, no entanto trata-se de uma enfermidade cutanea importante, resultando em perdas econ micas decorrentes do retardo no desenvolvimento dos animais, da perda de peso e do prejuízo à indústria de couro. Desse modo, o objetivo do presente artigo é relatar a ocorrência de um surto de sarna corióptica em um rebanho caprino criado no município de Gravatá (Lat. 08° 12’ 04’’ S e Long. 35° 33’ 53’’ O), regi o Agreste do estado de Pernambuco. Os animais apresentavam extensas áreas de alopecia, eritema, crostas e espessamento da pele na regi o das axilas, peito, ventre e as faces caudal e craniomedial dos membros posteriores, além de intenso prurido. Foi realizado raspado cutaneo e identificado o ácaro Chorioptes bovis spp. PALAVRAS-CHAVES: Caprinos, Chorioptes spp, sarna. Chorioptic mange is of rare occurrence in goats, although it is an important skin disease resulting in economic loss due to the delay in the development of the animals, weight loss and economic losses to the leather industry. Thus, the aim of the present article was to report the occurrence of an outbreak of chorioptic mange in a goat flock reared in the city of Gravatá, (Lat. 08° 12’ 04’’ S and Long. 35° 33’ 53’’ W) in Pernambuco′s Agreste region. The animals showed wide alopecia areas, erythema, crusts and skin thickness in the following areas: armpits, sternum, ventral abdomen, caudal and cranium-medial facets of the hind legs and severe scratching. Chorioptes bovis spp was identified in skin scrapings. KEY WORDS: Chorioptes spp, goats, mange.
METABOLISMO DE INDICADORES PREDITIVOS DA TOXEMIA DA PRENHEZ EM OVELHAS DORPER NO TER O FINAL DA GESTA O, PARTO E PóS-PARTO
Filipe Aureliano Pedrosa Soares,álvaro Veloso Borba Neto,Janaína Azevedo Guimar?es,Alexandre Cruz Dantas
Ciência Animal Brasileira , 2009,
Abstract:
SURTOS DE BABESIOSE CEREBRAL EM BOVINOS LEITEIROS NO NORDESTE BRASILEIRO
Ant?nio Carlos L. Camara,Janaina Azevedo Guimar?es,Alexandre Cruz Dantas,Carla Lopes de Mendon?a
Ciência Animal Brasileira , 2009,
Abstract:
Análise dos fatores relacionados a 60 casos de distocia em ovelhas no Agreste e Sert?o de Pernambuco
Camara, Ant?nio Carlos Lopes;Afonso, José Augusto Bastos;Dantas, Alexandre Cruz;Guimar?es, Janaina Azevedo;Costa, Nivaldo de Azevêdo;Souza, Maria Isabel de;Mendon?a, Carla Lopes de;
Ciência Rural , 2009, DOI: 10.1590/S0103-84782009005000198
Abstract: the aim of the present study was to report the main dystocia causes in sheep in agreste and semiarid region of pernambuco and to evaluate some factors related to their occurrence, besides of determining the efficiency of the treatment choices. the higher incidence of dystocia occurred in rainy season corresponding to 61.7%. results showed a major predominance of maternal dystocia (71.6%) over fetal dystocia (29.4%) with higher incidence in primiparous and gemelar pregnant santa inês ewes. the main maternal dystocia was ringwomb while fetal dystocia was maldisposition in anterior presentation. maternal survival rate correspond to 100% and 88.6%, while lambs achieved 41.2% and 46.7% after obstetrical maneuver and caesarean section, respectively, with predominance of unviable lambs in both procedures. obstetrical maneuver and left flank cesarean section remain as safe options for the treatment of sheep dystocia and are also important coadjutants in minimizing the economical impact that this disease causes in pernambuco.
A filologia saussuriana: debates contemporaneos
Marcio Alexandre Cruz
Alfa : Revista de Linguística , 2009,
Abstract: Parece que uma determinada representa o de Saussure se desfaz sob nossos olhos atualmente, e n o é sem um certo embara o que continuamos a veicular a imagem de um Saussure estruturalista, que teria fundado a ciência linguística ao delimitar seu objeto, a língua – oposta à fala – e que deve ser estudada nela mesma e por ela mesma. Mas a que atribuir essa mudan a de representa o a que se assiste hoje em torno da fi gura de Saussure? Certamente à descoberta dos manuscritos do autor, dir o alguns, em particular os fi lólogos dos textos saussurianos. Essa posi o n o é, contudo, unanime, e divergências advindas do interior da própria fi lologia podem ser observadas. é precisamente dessas divergências de que nos ocuparemos aqui. Analisaremos pelo menos duas posi es contrastantes relativas a essa problemática, mais exatamente, a posi o de Simon Bouquet e a de Rudolf Engler. Trata-se de um estudo em perspectiva histórica. Assim, procuraremos aqui reconstituir o contexto de emergência da fi lologia saussuriana, recuperando suas motiva es iniciais e as formas que ela tomou ao longo do século XX, o que permitirá melhor compreender a problemática que ora levantamos.
A p s i c a n á l i s e a p l i c a d a n o N ú c l e o d e I n ve s t i g a o em A n o r e x i a e Bulimia (NIAB) do Hospital das Clínicas da Universidade Federal de Minas Gerais (UFMG)
Alexandre Dutra Gomes Cruz
Psicologia em Revista , 2007,
Abstract: Resumo de Disserta o
Preparation of Bi4Ti3O12 (BIT) Ceramics via a High-Energy Ball Milling Process Doped with Multi-Walled Carbon Nanotubes (MWNTs)  [PDF]
Alexandre Gon?alves Pinheiro, Gilberto Dantas Saraiva, Josué Mendes Filho, Antonio Sergio Bezerra Sombra
Materials Sciences and Applications (MSA) , 2013, DOI: 10.4236/msa.2013.49067
Abstract:

We prepared the Nano-sized bismuth titanate Bi4Ti3O12 (BIT) powders, through a high-energy ball milling process from their oxides Bi2O3 and TiO2. This BIT phase can be formed after a milling process for 40 min. With an increasing milling time, this particle size of mixture is gradually reduced, thus, we have mostly an amorphous phase. The BIT ceramics were duly obtained by sintering the synthesized powders at temperatures ranging from 850°C to 1000°C. The BIT ceramics sintered at 1020°C for 1 h, exhibiting a density with 7.52 g/cm3 of a crystaline phase and a dielectric of K = 288.11 (100 Hz), as well as a dielectric loss of 0.05 (100 kHz). The High-energy ball milling process is a promising way to prepare BIT ceramics. After the preparation of the BIT, we doped it with the Multi-Walled Carbon Nanotubes which are properly obtained by a chemical vapour deposition (CVD), using nickel as a catalyst, as well as using acetilene at 720°C, and then proceeded with the dielectric and optical measurements.

Apertura económica, exportaciones y procesos de aprendizaje: el caso de la Cervecería Cuauhtémoc-Moctezuma
Alexandre O. Vera-Cruz
Análisis Económico , 2002,
Abstract:
Data Evaluation and Visibility in Single Beam Scanner of Gamma Ray Tomography  [PDF]
Carlos Costa Dantas, Alex Elton Moura, Tiago Leite Rolim, Silvio de Barros Melo, Valdemir Alexandre dos Santos, Emerson Alexandre de Oliveira Lima
World Journal of Nuclear Science and Technology (WJNST) , 2013, DOI: 10.4236/wjnst.2013.31004
Abstract:

In this paper, data analysis and modeling of gamma ray tomography taken into account spatial resolution and source of errors and the attenuation coefficient measurement in row data from tomography process are presented. The results showed that this method is simple, effective and should be prior to any data treatment for opaque vessel reactor and by reconstruction algorithm in process imaging.

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