Universidade Estadual do Vale do Acaraú

About: Universidade Estadual do Vale do Acaraú is a education organization based out in Sobral, Brazil. It is known for research contribution in the topics: Chalcone & Health promotion. The organization has 205 authors who have published 234 publications receiving 1901 citations.

Desempenho e respostas adaptativas de novilhos angus x nelore em clima tropical

Abstract: The aim of this study was to evaluate the performance and the adaptive profile of de 25 steers ¶ Angus x µ Nelore (RED) and 25 steersAngus xNelore (NEL), during the milking and the fattening phas- es, in an intensive system, at Rio Grande do Norte state. The body weights, anterior and posterior high, as well as the thoracic perimeter, were monthly measured to evaluate the growth pattern. As adaptive responses were registered rectal temperature and hair coat traits. The statistical analyzes were based in the minimum square method, utilized mixed models. At the beginning of the trial both of genetic groups presented the same body weight (103,03kg) and from the second sampling on the animals RED were superior in comparison with the NEL and showed higher body weight at the weaning (181,60kg RED e 158,57kg NEL) and the 13th months. On the other hand, there was no difference between the genetic groups for the final weight (slaughter body weight). There were differences in all the performance characteristics analyzed. The RED group was superior in relation to the NEL group. The hair coat characteristics didn't differ between the genetic groups, except the hair coat length, which was higher in the RED animals. We concluded that both of genetic groups were adapted to tropical weather conditions, nevertheless, despite the better performance showed by the animals RED during the suckling and the fattening phases, the NEL animal may be indicated because of the similar slaughter body weight.

Duração da imunidade passiva para lentivírus de pequenos ruminantes em cordeiros

Abstract: In order to evaluate the passive immunity against small ruminant lentiviruses (SRLV) in lambs, this study was conducted from two experimental groups. The first one (G1) was established by nine lambs subjected to artificial feeding of colostrum of goats positive for SRLV. The second one (G2) was the control group, consisting of ten lambs subjected to suckling of colostrum from their negative mothers. Blood samples were obtained before the first feeding, after 24 hours of birth and at 7, 15, 30, 50, 70, 90 and 120 days of age. The concentrations of total serum protein (TSP), albumin (ALB), globulin (GLOB) and immunoglobulin G (IgG) were determined and antibodies to SRLV were surveyed from the techniques of agar gel immunodiffusion (AGID), enzyme linked immunosorbent assay (Elisa) and immunoblotting (IB). In both groups, the lowest averages of TSP, GLOB and IgG were observed at birth and the highest averages were observed at 24 hours of life, due to absorption of colostral immunoglobulins. For G1, transfer of immunity could also be detected by immunodiagnostic tests. At birth, the animals were seronegative. After 24 hours, all animals were positive in three serological tests. Negative results began to be observed after 15 days of age by the AGID test. As for Elisa testing, all animals remained reagent until 50 days old. Only IB was able to detect anti-SRLV at 70 days. Regarding G2, all animals tested negative in AGID and IB, from birth until 120 days of age. However, false-positive results were observed until day 15 in Elisa, due to nonspecific reactions. These data are consistent with the sensitivity and specificity of serological tests and show that starting at 90 days of age, colostral antibodies to SRLV are no longer detected in the serum of lambs.

Crystallization and preliminary X-ray diffraction analysis of the lectin from Dioclea rostrata Benth seeds

Abstract: Lectins from the Diocleinae subtribe (Leguminosae) are highly similar proteins that promote various biological activities with distinctly differing potencies. The structural basis for this experimental data is not yet fully understood. Dioclea rostrata lectin was purified and crystallized by hanging-drop vapour diffusion at 293 K. The crystal belongs to the orthorhombic space group I222, with unit-cell parameters a = 61.51, b = 88.22, c = 87.76 A. Assuming the presence of one monomer per asymmetric unit, the solvent content was estimated to be about 47.9%. A complete data set was collected at 1.87 A resolution.

Análise estrutural das representações sociais sobre a aids entre pessoas que vivem com vírus da imunodeficiência humana

Abstract: Objetivo: identificar la estructura de las representaciones sociales sobre el SIDA entre personas con Virus de la imunodeficiencia humana. Metodo: investigacion descriptiva, fundamentada en la Teoria del Nucleo Central de las representaciones sociales. Se aplico un test de asociacion libre de palabras entre 231 adultos en terapia antiretroviral. Las evocaciones fueron procesadas en el software Ensemble de programmes permettantl'analyse des evocations - EVOC2000® que genero un cuadro correspondiente a la probable estructura de la representacion. Resultados: el nucleo central fue integrado por los elementos enfermedad, tristeza, miedo, muerte y transmision. El sistema periferico se constituyo en mayor frecuencia por prejuicio, remedio y tratamiento, en la primera periferia: dificil, preservativo y cura, en la segunda periferia: malo, prevencion y normal, en la zona de contraste. Conclusion: las percepciones centrales revelaron elementos compartido desde el surgimiento de la infeccion. El sistema periferico apunto la necesidad de esfuerzo continuo para el enfrentamiento de la sociedad y sentimientos negativos, hasta que alcancen la cura

Psychometric parameters of the subscale of hostility from the Symptom Checklist 90 (SCL-90)

Abstract: The present study aimed to know the psychometric parameters of the SCL-90 hostility scale. For this, two studies were traced; In Study 1, 209 students, mean age 16 years (SD = 1.29), who responded to the Scale of Hostility and a sociodemographic questionnaire. The exploratory factorial analysis indicated a unidimensional structure, whose Cronbach’s alpha was.71. In Study 2, we sought to find additional evidence of validity and reliability counting with 212 students with a mean age of 16 years (SD = 1.19). The confirmatory factorial analysis tested the unifactorial structure and pointed to good adjustment indexes; good internal consistency and composite reliability were also observed. In general, the Scale of Hostility provided evidence of satisfactory validity and reliability.