ABSTRACT
Recently, Mitsuhashi et al observed superconductivity with a transition temperature up to 18 K in potassium doped picene (C(22)H(14)), a polycyclic aromatic hydrocarbon compound (Mitsuhashi et al 2010 Nature 464 76). Theoretical analysis indicates the importance of electron-phonon coupling in the superconducting mechanisms of these systems, with different emphasis on inter- and intra-molecular vibrations, depending on the approximations used. Here we present a combined experimental and ab initio study of the Raman and infrared spectrum of undoped solid picene, which allows us to unambiguously assign the vibrational modes. This combined study enables the identification of the modes which couple strongly to electrons and hence can play an important role in the superconducting properties of the doped samples.
ABSTRACT
O objetivo do trabalho foi apreender como os enfermeiros dos Núcleos de Saúde da Família do Distrito Oeste - Ribeirão Preto compreendem a intersetorialidade e buscam articulação com os equipamentos sociais na assistência à saúde da população de suas áreas adstritas. No percurso metodológico utilizou-se o Discurso do Sujeito Coletivo como técnica de ordenação dos dados. Os resultados mostram que a intersetorialidade é um desafio a ser conquistado, pois os profissionais e setores ainda trabalham de forma fragmentada. Percebe-se, nos depoimentos, uma confusão conceitual sobre intersetorialidade pois tomam-na como responsabilidade individual a partir das demandas individualizadas dos usuários. Desta forma, identificam a intersetorialidade como um processo de trabalho penoso e solitário. Entendem, ainda, a necessidade da criação de uma rede de apoio para a efetivação desse princípio e acreditam que é preciso começar a entender e escutar a opinião de outros profissionais e setores.
Subject(s)
Humans , Male , Female , Intersectoral Collaboration , Family Health , Nurses, Male , Health PromotionABSTRACT
Peripartum cardiomyopathy (PPCM) is a rare form of heart failure affecting women in the last month of pregnancy or the first six months post-partum. The etiology of PPCM remains poorly understood although some risk factors were described. Diagnosis is often difficult and is always necessary to exclude other prior heart disease and other cause of left ventricular dysfunction in pregnancy. Medical therapy for PPCM is similar to that for other forms of congestive heart failure; prognosis is better than in idiopathic cardiomyopathy but many authors observed that women who have had one episode of PPCM are likely to have recurrences in subsequent pregnancies. The present report describes the case of a woman presenting with severe cardiac failure immediately after cesarean section for twin pregnancy. The patient is a 35-year-old nulliparous white woman, with history of anorexia, subsequent amenorrhea, sterility and pregnancy induced with Gn-Rh. The diagnosis of PPCM was difficult for the presence of preeclampsia and acute pulmonary edema occurred four hours after delivery. The successful outcome was possible with an intensive treatment (mechanical ventilation, Swan-Ganz catheter). The whole resolution of the heart failure, six months post-partum, was demonstrated by ultrasonography.