186,180 research outputs found
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Ovulation inducing factors in rabbits (Oryctolagus cuniculus): The role of interleukin-1.
No full textTHE CASE STUDY OF RESISTIN IN SHEEP: CAN DIET INFLUENCE THE MOLECULE’S LOCALIZATION IN THE ENDOCRINE PANCREAS?
No full textResistin (RETN), a recently discovered adipokine, is a cysteine-rich and secretory protein produced by adipocytes [1]. The RETN has been detected in several tissues, including human and lab animals' pancreas, wherein impairs glucose tolerance and insulin action and causes insulin resistance [2]. This study aimed to evaluate the presence and expression of RETN in the pancreas of 15 adult female sheep reared on Apennine pastures, which show a decrease in their nutritional value due to the increasing stress from summer drought [3]. The sheep were divided into 3 groups according to the diet they were subjected to maximum pasture flowering (MxF) group, maximum pasture dryness (MxD) group, and experimental (Exp) group which received a feed supplementation in addition to the MxD group feeding. As a preliminary analysis, immunohistochemistry (IHC) and immunofluorescence (IF) techniques were performed on formalin-fixed and paraffin-embedded sections of the pancreas to detect the RETN presence and to evaluate the co-expression of RETN with both glucagon (GCG)- and insulin (INS)-producing cells. Mouse monoclonal anti-RETN, rabbit polyclonal anti-GCG, and anti-INS, as primary antibodies, were used to carry out both IHC and IF. The RETN was observed in the endocrine cells and colocalized with both GCG-secreting alpha cells and INS-secreting beta cells, showing a wide distribution throughout the pancreatic islets. No differences in distribution and signal intensity of RETN, GCG, and INS were observed among the three groups of animals fed on different diets.
These data show that RETN protein is produced by the cells of pancreatic islets, including the alpha and beta cells. Nevertheless, further investigations are needed to determine the overall role of pancreatic RETN. The IHC investigation did not reveal any differences related to diet.
The RT-qPCR evaluation of RETN, GCG, and INS expression will further characterize the influence of different diets on pancreatic islet functionality
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Gene and protein expression of the nerve growth factor and its cognate receptors in different testicle morphotypes of a grey squirrel population (Sciurus carolinensis) living in central Italy.
No full text
Reproductive physiology of а population of gray squirrels living in central Italy: reproductive characteristics and role of the Nеrvе Growth Factor.
No full textDispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Dr. Edward P. Wimberly, ITC, July 2011
No full textThis video is a conversation with Dr. Edward P. Wimberly. Dr. Wimberly talks about his book, "No Shame in Wesley's Gospel: A Twenty-First Century Pastoral Gospel". Brad Ost, AUC Woodruff Library, is the interviewer
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