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Citations of Brazilian physical therapy journals in national publications

BACKGROUND Quotations in Brazilian journals are mainly obtained from national articles (articles from Brazilian journals); thus, it is essential to determine how frequently these articles reference Brazilian journals. OBJECTIVE This study sought to verify how frequently national papers are cited in the references of three Brazilian physical therapy journals. METHOD All references for articl...

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We have investigated the activated adsorption of methane on Pt(1 1 1) by the combination of a supersonic molecular beam and in situ high-resolution X-ray photoelectron spectroscopy at the German synchrotron radiation facility BESSY II. On exposing the surface to a methane beam with kinetic energies between 0.30 and 0.83 eV, CH3 is formed as a stable species at 120 K; upon heating, at around 260...

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ژورنال

عنوان ژورنال: Nature

سال: 1990

ISSN: 0028-0836,1476-4687

DOI: 10.1038/348480c0