1,720,963 research outputs found
Analisi microdensitometrica della bandeggiatura assile nelle fibrille collagene della cornea dopo criofrattura e replica
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Studio al microscopio elettronico e con diffrazione di raggi X del collagene del tendine della coda di ratto in differenti condizioni sperimentali
No full text[Histochemical and ultrastructural analysis of the distribution of glycosaminoglycans in the renal papilla interstitium of the rat].
No full textAbstract - Sono state condotte ricerche su reni di ratto per evidenziare a livello strutturale ed ultrastrutturale la presenza e la distribuzione di glicosaminoglicani. Sezioni istologiche di papilla renale e blocchi di tessuto per microscopia elettronica venivano trattati con Alcian Blu diluito in concentrazioni elettrolitiche critiche di MgCl2; altri campioni venivano preincubati con condroitinasi o cheratanasi e successivamente colorati con Alcian Blu. La differente colorabilità delle sezioni, in relazione ai differenti trattamenti, suggeriscono la presenza nella papilla renale di una elevata concentrazione di proteoglicani contenente eparansolfato
A comparative study of rat tail tendon collagen by X-ray diffraction and freeze-etching techniques
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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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