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Nuove iniziative internazionali sulle linee guida per la broncopneumopatia cronica ostruttiva
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Chronic obstructive pulmonary disease international guidelines
No full textAlthough chronic obstructive pulmonary disease (COPD) has a public health importance similar to asthma, it has received less attention. The first guideline on the management of COPD was released in 1987 by the American Thoracic Society. In 1992 the Canadian Thoracic Society released its guidelines. In 1995 the European Respiratory Society and the Thoracic Society of Australia and New Zealand released their guidelines and the American Thoracic Society updated and expand its COPD guidelines. All these documents were followed in 1997 by the guidelines developed by the British Thoracic Society. These COPD guidelines show many similarities but also have some interesting differences. The aim of this paper is to review these similarities and discrepancies. Like all guidelines, COPD guidelines suffer from the limited amount of evidence-based medicine supporting them, a limitation that, however, provides a strong stimulus for further research
Ossidanti ed antiossidanti nella patologia respiratoria.
No full textIn questo articolo passeremo brevemente in rassegna il ruolo dello squilibrio del rapporto ossidanti/antiossidanti nella patogenesi delle malattie respiratorie dell'adulto, in particolare nella broncopneumopatia cronica ostruttiva (BPCO) e nell'asma bronchiale, ma si ritiene comunque che esso abbia un ruolo anche in numerose altre malattie polmonar
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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