1,720,993 research outputs found
Blood donors: An ideal population to study the PSA value and the incidence of prostate cancer in healthy population
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The effects of renal ischemia on kidney function in renal cancer conservative surgery
No full textOver the past ten years nephron sparing surgery for renal cancer has been compared to radical nephrectomy for what concern oncological results, even in elective situations but it is necessary to consider functional results (renal function) as well. Clamping renal artery, inducing a temporary renal ischemia that might represent the major known cause of permanent renal damage, is advised for both open and laparoscopic conservative approach. Data from literature show that before the clamping, the patient should be adequately hydrated and receive mannitol. Ischemia should last preferentially less than 30 minutes and kidney cooling should be advised in case of more prolonged ischemia. Artery reclamping should be avoided. Both in warm and cold ischemia, the renal tissue should be perfused by mannitol once the circulation is resumed
Prostate biopsy guidelines. Post faction [Linee guida sulla biopsia prostatica. Postfazione]
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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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