Efect of an educative action on relatives' knowledge about childhood burns at home

O objetivo deste trabalho foi avaliar o efeito de ação educativa sobre o conhecimento de familiares de crianças a respeito de queimaduras em ambiente doméstico. Participaram 40 familiares de crianças menores de quatro anos, divididos igualmente em grupos intervenção e controle. Foram realizadas entrevista inicial, ação educativa com folder de queimaduras e entrevista após uma semana. As respostas foram comparadas, utilizando-se teste estatístico de Fisher. Na primeira entrevista, registrou-se 60 respostas de situações de risco no grupo controle e 62 no grupo intervenção; na segunda, aumentou para 61 e 80 indicações, respectivamente. Na primeira entrevista, 90% dos participantes do grupo controle e 80% do grupo intervenção verbalizaram acreditar que a queimadura infantil pode ser evitada; na segunda, a indicação diminuiu para 84% e aumentou para 100%, respectivamente. Este estudo mostrou a importância da orientação com folder de queimaduras em ambiente doméstico.

HBT interferometry: historical perspective

I review the history of HBT interferometry, since its discovery in the mid 1950's, up to the recent developments and results from BNL/RHIC experiments. I focus the discussion on the contributions to the subject given by members of our Brazilian group.

Possible origin of RHIC Rout/Rsid HBT results

The effects of opacity of the nuclei together with a blackbody type of emission along the system history are considered as a means to explain the ratio Rout/Rsid observed by STAR and PHENIX collaborations at RHIC. Within our model, no flow is required to explain the data trend of this ratio for large surface emissivities. © 2003 Elsevier Science B.V. All rights reserved.

Synaptonemal complex analysis of the Holstein-Friesian, Piemontese and Simmental breeds of Bos taurus taurus

The synaptonemal complex (SC) of specimens of Sos taurus taurus from the Holstein-Friesian, Piemontese, and Simmental breeds, was analysed. The analysis included quantification of the frequency of various types of abnormalities in the SC, and the frequency of calls with SC abnormalities. All animals had 29 autosomal bivalents and one sexual bivalent and the most frequently recorded abnormality was pairing failure. The number of cells with abnormalities in the Holstein-Friesian breed was 29.41%, in the Piemontese breed was 30.00% and in the Simmental breed it was 29.54%. The subspecies Bos taurus taurus had 29.63% of cells showing abnormalities with 57.33% of these abnormalities occurring in zygotene and 42.67% occurring in pachytene. Statistical analyses showed that there were no significant differences in the number of cells with SC abnormalities among the breeds studied. The frequency of cells with abnormalities, and the efect on the fertility of the Holstein-Friesian, Piemontese and Simmental breeds are discussed.

Search for squeezed-pair correlations at RHIC

Squeezed correlations of particle-antiparticle pairs, also called back-to-back correlations (BBC), are predicted to appear if the hadron masses are modified in the hot and dense hadronic medium formed in high energy nucleus nucleus collisions. Although well established theoretically, the squeezed-particle correlations have not yet been searched for experimentally in high energy hadronic or heavy ion collisions, clearly requiring optimized forms to experimentally search for this effect. Within a non-relativistic treatment developed earlier we show that one promising way to search for the BBC signal is to look into the squeezed correlation function of pairs of phi's at RHIC energies, plotted in terms of the average momentum of the pair, K(12) = 1/2 (k(1) + k(2)). This variable's modulus, 2 vertical bar K(12)vertical bar, is the non-relativistic limit of the variable Q(bbc), introduced herewith. Some squeezing effects on the HBT correlation function are also discussed.

Squeezed correlations among particle-antiparticle pairs

The hadronic correlation among particle-antiparticle pairs was highlighted in the late 1990's, culminating with the demonstration that it should exist if the masses of the hadrons were modified in the hot and dense medium formed in high energy heavy ion collisions. They were called Back-to-Back Correlations (BBC) of particle-antiparticle pairs, also known as squeezed correlations. However, even though they are well-established theoretically, such hadronic correlations have not yet been experimentally discovered. Expecting to compel the experimentalists to search for this effect, we suggest here a clear way to look for the BBC signal, by constructing the squeezed correlation function of phi phi and K(+)K(-) pairs at RHIC energies, plotted in terms of the average momentum of the pair, K(12)=1/2(k(1) + k(2)), inspired by procedures adopted in Hanbury-Brown & Twiss (HBT) correlations.

Fertilização artificial de ovócitos de curimbatá, Prochilodus lineatus

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Impacto das tarifas em mercados de concorrência monopolística

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Femtoscopia em colisões próton-próton no detector CMS do Large Hadron Collider

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Germinação e efeito de doses de fósforo no crescimento inicial e atividade in vivo da fosfatase ácida em Lychnophora ericoides MART

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Efeito agudo dos exercícios com pesos sobre os níveis de leptina, adiponectina e fator de necrose tumoral alfa em adultos não treinados

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Análise da hidrofobicidade na evolução de proteínas

Pós-graduação em Biofísica Molecular - IBILCE

Remodelação miocárdia e função ventricular em ratos espontaneamente hipertensos observados durante o envelhecimento

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeitos da equação de estado em hidrodinâmica relativística através de alguns observáveis

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)