Stabilizing an attractive Bose-Einstein condensate by driving a surface collective mode

Bose-Einstein condensates with attractive interatomic interactions undergo collective collapse beyond a critical number. We show theoretically that if the low-lying collective modes of the condensate are excited, the radial breathing mode further destabilizes the condensate. Remarkably, excitation of the quadrupolar surface mode causes the condensate to become more stable, imparting quasiangular momentum to it. A significantly larger number of atoms may then occupy the condensate. Efforts are under way for the experimental realization of these effects. ©2001 The American Physical Society.

Saúde da Família: O desafio de uma atenção coletiva

The Family Health Strategies, incorporated by the Ministry of Health in 1994, has consolidated the national policy of health care that has as its main care focus the family. In this model, this institution constitutes the first object of attention, understood from its environment and interaction. In recent decades, the Brazilian family structure is suffering profound changes that directly affect the practices of health care. This study redeem the family concepts and ideas and their social representations and still prove and present the importance and the necessity of the use of these ample instruments of collective boarding in health area: the APGAR, the genogram and eco-map, using the environment observation and family history - crucial factors to the reality of the nuclear family diagnosis - for further planning of health action strategies. It was concluded that the current structure of the family require training from the health teams, for physical, cultural, biological and social points of the family context for the correct use of the instruments cited, important tools for collective approach in the public health area.

Occurrence of mycobacteria in bovine milk samples from both individual and collective bulk tanks at farms and informal markets in the southeast region of Sao Paulo, Brazil

Background: Mycobacterium spp. is one of the most important species of zoonotic pathogens that can be transmitted from cattle to humans. The presence of these opportunistic, pathogenic bacteria in bovine milk has emerged as a public-health concern, especially among individuals who consume raw milk and related dairy products. To address this concern, the Brazilian control and eradication program focusing on bovine tuberculosis, was established in 2001. However, bovine tuberculosis continues to afflict approximately 1,3 percent of the cattle in Brazil. In the present study, 300 samples of milk from bovine herds, obtained from both individual and collective bulk tanks and informal points of sale, were cultured on Löwenstein-Jensen and Stonebrink media. Polymerase chain reaction (PCR)-based tests and restriction-enzyme pattern analysis were then performed on the colonies exhibiting phenotypes suggestive of Mycobacterium spp., which were characterized as acid-fast bacilli.Results: Of the 300 bovine milk samples that were processed, 24 were positively identified as Mycobacterium spp.Molecular identification detected 15 unique mycobacterial species: Mycobacterium bovis, M. gordonae, M. fortuitum, M. intracellulare, M. flavescens, M. duvalii, M. haemophilum, M. immunogenum, M. lentiflavum, M. mucogenicum, M. novocastrense, M. parafortuitum, M. smegmatis, M. terrae and M. vaccae. The isolation of bacteria from the various locations occurred in the following proportions: 9 percent of the individual bulk-tank samples, 7 percent of the collective bulk-tank samples and 8 percent of the informal-trade samples. No statistically significant difference was observed between the presence of Mycobacterium spp. in the three types of samples collected, the milk production profiles, the presence of veterinary assistance and the reported concerns about bovine tuberculosis prevention in the herds.Conclusion: The microbiological cultures associated with PCR-based identification tests are possible tools for the investigation of the presence of Mycobacterium spp. in milk samples. Using these methods, we found that the Brazilian population may be regularly exposed to mycobacteria by consuming raw bovine milk and related dairy products. These evidences reinforces the need to optimize quality programs of dairy products, to intensify the sanitary inspection of these products and the necessity of further studies on the presence of Mycobacterium spp. in milk and milk-based products. © 2013 Franco et al.; licensee BioMed Central Ltd.

O fazer teórico-prático do nutricionista na estratégia saúde da família: representações sociais dos profissionais das equipes

Pós-graduação em Alimentos e Nutrição - FCFAR

Amélia é quem era mulher de verdade?: mulheres pobres e a construção de uma Nova Marília (1980-2004)

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

O Significado do projeto pedagógico a partir das representações sociais dos professores

Pós-graduação em Educação - FCT

HTPC: hora de trabalho perdido coletivamente?

Pós-graduação em Educação - FCT

Sentimentos e percepções de mulheres no ciclo gravídico-puerperal que sobreviveram à morbidade materna grave

Pós-graduação em Enfermagem (mestrado profissional) - FMB

A morte em situações de urgência e emergência: a dimensão cuidadora dos profissionais de enfermagem

Pós-graduação em Enfermagem (mestrado profissional) - FMB

Entre a lei e o desejo: uma construção de um sujeito organizacional

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Corpo, contemporaneidade, juventudes e escola

Pós-graduação em Educação para a Ciência - FC

Tecnologias da informação e comunicação, função composta e regra de cadeia

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Entre o sacerdócio e a contestação: uma história da Apeoesp (1945-1989)

Pós-graduação em História - FCLAS

Representações de indivíduoas em situações de isolamento para transplante de medula óssea

Pós-graduação em Enfermagem (mestrado profissional) - FMB

Cuidado integral ao recém-nascido de muito baixo peso: representações de familiares e enfermeiros

Pós-graduação em Saúde Coletiva - FMB