RESUMO
OBJECTIVE: To assess the level of knowledge about and the attitudes of the Cuban health researchers towards the open access movement. METHODS: A descriptive, cross-sectional study was conducted from March to June 2007 through a printed questionnaire administered to a group of Cuban researchers from several national health institutes, who were selected by means of a stratified random sampling (160 researchers from 11 institutions). Summary statistics and bivariate correlations were obtained using the spss statistical program, version 10.0 for Windows. RESULTS: The best known initiatives for researchers were those related to biomedical sciences, i.e. PubMed Central, HINARI and BioMed Central. The rate of publication in open access journals and deposit in open access repositories was low. Most of researchers (85%) agree to upload a copy of their papers onto an open access repository if their institution requests so. CONCLUSIONS: Our findings indicate a need for the promotion of the beneficial aspects of the open access movement, as well as training and encouragement for researchers so that they can take full advantage of the potential of this movement.
Assuntos
Acesso à Informação , Pesquisa Biomédica , Pesquisadores/psicologia , Atitude , Estudos Transversais , Cuba , Humanos , Inquéritos e QuestionáriosRESUMO
We inform about the utility of Color-Doppler to identify dissection in aortic aneurysm. We studied five patients, fourth with dissection and one without dissection. All of them were in the fourth decade of life, except the patient without dissection, who developed symptoms at the age of 62. Two-dimensional echocardiography displayed the alterations of the aorta, such as dilatation of the walls, the presence or absence of dissection and in the cases with dissection the extension of it (three patients had DeBakey Type I, one DeBakey Type III an other DeBakey Type II). In all patients with dissection the Doppler study determined the presence or absence of flow through the false channel, in particular in the second and fifth patient and with Color-Doppler we observed that the flow was bidirectional. Also the degree of aortic incompetence could be quantified. It is concluded that with two-dimentional echocardiography it is possible to identify the anatomical features of aortic aneurysm and that Doppler study gives additional hemodynamic information which has importance in therapy and prognosis.