Bounds on the electromagnetic interactions of excited spin-3/2 leptons

We discuss possible deviations from QED produced by a virtual excited spin-3/2 lepton in the reaction $e^+e^- \longrightarrow 2\gamma$. Data recorded by the OPAL Collaboration at a c.m. energy $\sqrt{s} = 183 GeV$ are used to establish bounds on the nonstandard-lepton mass and coupling strengths.Comment: Latex, 5 pages, 7 ps figures. To be published in Phys. Rev.

Uma autobiografia operária: a memória entre a entrevista e o romance

TRATA-SE da apresentação e análise de uma rara autobiografia romanceada feita por um trabalhador e entregue aos pesquisadores após entrevista realizada com o autor em trabalho de campo na vila operária da cidade de Paulista, em Pernambuco. Apesar de apresentar metáforas e fábulas comuns ao gênero de literatura para leitura em voz alta, como o cordel, o autor domina uma narrativa elaborada com três versões de uma história comum, vista por três personagens, com pequenos mistérios e surpresas: só no meio da narrativa é que o leitor percebe se tratar de uma autobiografia. Por meio de uma narrativa ficcional de sua história vivida, o autor aborda suas origens rurais, a importância de alguns membros do grupo familiar na sua infância e adolescência; aspectos não-revelados nas entrevistas que versavam sobre sua participação recente no trabalho industrial. A experiência de migração para os centros metropolitanos, a diversidade de trabalhos na indústria, a relação com a leitura e a autodidaxia desse filho caçula são fatores, como em outras autobiografias operárias de que se tem conhecimento em escala internacional, para explicar esse trabalho reflexivo por escrito sobre o passado e suas origens sociais.IN THIS article is presented and analysed a rare ficional worker's autobiography given to the anthropologists after interviews in fieldwork done in the company-town located at the city of Paulista, Pernambuco. In spite of the use of fables and metaphors that are common to the literary genre for loud voice lecture, as cordel, the author masters an elaborate narrative with three versions of the same story, seen by three characters, with some mysteries and surprises: only in the middle of the text the reader perceives that it is an autobiography. Through fictional narrative of his living history, the author describes his rural origins and the importance of some members of his family unit in his childhood and youth; all non revealed aspects in the interviews that focused in his recent industrial work participation. The experience of migration to metropolitan centres, the diversity of industrial jobs, the relation to lecture and self-instruction, the position of youngest between brothers, are all factors, as show other working-class autobiographies seen in international comparison, to explain this reflexive written work about the past and about social origins

IDENTIFICAÇÃO E ANÁLISE DOS COMPARTIMENTOS GEOMORFOLÓGICOS DA UNIDADE GEOMORFOLÓGICA DO TABULEIRO INTERIORANO DE FEIRA DE SANTANA-BA

O trabalho tem o intuito de realizar uma compartimentação da unidade geomorfológica do Tabuleiro de Feira de Santana, levando-se em consideração os processos e as formas atuais. Foi realizado um levantamento de dados pluviométricos, para a geração dos mapas de distribuição de chuva e da intensidade, e a extração de parâmetros morfométricos do SRTM. As análises dos dados permitiram a identificação de quatro compartimentos distintos, diferenciando-se as formas dos interflúvios, vales e vertentes

Differentiated postnatal growth of the neurocranium and splanchnocranium in domestic equines

Geometric morphometry of 42 equine skulls from different domestic breeds was used. A digital photograph of the dorsal plane of each skull was obtained, on which were placed seven craniometric landmarks, involving both the neuro and the splanchnocranium. It is verified that the ontogenic process of domestic equids conforms to the CREA rule (Cranial Evolutionary Allometric), by which there is a common allometric pattern among taxa of mammals, by which the smaller species would have shorter faces and skulls wider than larger species. A dolichoprosopy correlated with dolichocephaly is accepted, or in other words, a facial hypermorphosis (since the facial width also has a behavior similar to that of the length of the face) parallel to the increase in the size of the head for domestic equids.Se recurrió al estudio por morfometría geométrica de 42 cráneos de equinos de diversas razas domésticas. Se obtuvo una fotografía digital del plano dorsal de cada cráneo, sobre la que se situaron siete hitos craneométricos, que incluían puntos, tanto del neuro como del viscerocráneo. Se comprueba que el proceso ontogénico de los équidos domésticos se ajusta a la regla del CREA («Cranial Evolutionary Allometric»), por la que existe un patrón alométrico común entre taxones de mamíferos, por el cual las especies más pequeñas presentarían caras más cortas y cráneos más anchos que las especies de mayor tamaño. Se acepta una dolicoprosopia correlacionada con la dolicocefalia, o dicho de otro modo, una hipermorfosis facial (puesto que la anchura facial también tiene un comportamiento similar al de la longitud de la cara) paralela al aumento del tamaño de la cabeza para los équidos domésticos

Age and menarcheal status do not influence metabolic response to aerobic training in overweight girls

BACKGROUND: Multidisciplinary intervention is an alternative for the treatment of children and adolescent obese. However, the influence of age and menarcheal status in the pattern of metabolic response of obese girls has not been investigated. The following study examined the effects of a 12-week multidisciplinary intervention on metabolic health in overweight girls and the contribution of age and menarcheal status on the resulting changes. METHODS: Eighty-eight overweight girls (10 - 16 years) were considered initially for this study and randomly assigned (intervention group: n = 58; control group: n = 30). Forty-six girls completed the intervention program and 16 girls completed the follow-up for the control group. The 12-week intervention included aerobic exercises (three times per week) and nutritional intervention. Anthropometrical measures (body mass, body mass index and waist circumference), menarcheal status and metabolic profiles including glucose, insulin, triglycerides (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) were assessed in the beginning and after of intervention. Additionally, were calculated homeostatic model assessment-insulin resistance (HOMA-IR) and quantitative insulin sensitivity check index (QUICKI). RESULTS: After 12-week, girls decreased significantly the body mass (76.6 ± 14.7 to 75.7 ± 14.6 kg) body mass index (30.1 ± 4.0 to 29.4 ± 4.0 kg/m(2)) and waist circumference (98.9 ± 10.9 to 96.5 ± 11.4 cm). There were differences in HDL-C (43.1 ± 8.2 to 50.3 ± 9.4 mg/dl), TG (120.9 ± 64.3 to 93.3 ± 47.9 mg/dl) and insulin (16.9 ± 7.6 to 15.6 ± 9.8 mg/dl). Relative contribution of age was significant only for within-subject variability in waist circumference. CONCLUSIONS: The multidisciplinary based on aerobic training intervention used in this study produced substantial benefits on metabolic health indicators in overweight girls. The changes observed were not related to inter-individual variability in age and maturity status