130,498 research outputs found
Deux philosophes, Gottschalk et Hasdai ibn Shaprut, temoignent sur les Croates du temps des synasties nationales
Ranoskolastički filozof i teolog Gottschaik boravio je oko godine 847. na dvoru hrvatskog vladara 1tpimira. Načevši dva značajna teološka problema (pitanje dvojne predestinacije i odnos osoba u sv. 1tojstvu) osvrnuo se na proricanje ishoda jednog bojnog pohoda u Dalmaciji i na neke k.arak.teristike u govoru ovdašnjih slavenskih i latinskih stanovnika.
Židovski liječnik i filozof Hasdai ibn Šapcut, ministar na dvoru u Kordobi, primio je oko godine 953. poslanike kralja naroda »Gebalim« (najvjerojatnije hrvatskog kralja Mihajla Krešimira) i preko njih poslao jedno pismo kralju Hazara. On je dao prepisati kroniku Sefer Jossipon. U njoj se spominju Hrvati koje neki smatraju potomcima Hama (preko njegova sina Kanaana), ali koji za sebe drže da su potomci Jafeta (preko njegova unuka Dodanima).Gottschalk (Godescalc d'Orbais), philosophe et théologien de I’époque carolingienne, a séjourné vers à 847 à la cour du souverain croate Terpimir. Soulevant deux controverses théologiques majeures (la question de la double prédestination et le mystère de la Trinité), Gottschalk commente sa prédiction (foodée sur le comportement du cheval du roi) sur l'issue d'une bataille en Dalmatie et mention ne certaines caractéristiques du langage des habitants slaves et latins de ce pays.
Le médecin et philosophe juif Hasdai ibn Shaprut, ministre à la cour du calife de Cordoue, a recu vers 953 les ambassadeurs du roi des »Gebalim« (probablement roi croate Michel Kressimir) et a envoyé par leur intermédiaire une lettre au roi des Khazars. Il a fait transcrire la chronique Sefer Jossipon dans laquelle on mentionne les Croates tenus par certains pour descendants de Cham (par son fils Canaan), mais qui eux-mêmes se considèrent comme descendants de Japhet (par son petit-fils Dodanim)
MeSH term explosion and author rank improve expert recommendations
Information overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
Sex-differences in non-obstructive coronary artery disease: observations in the Euro Heart Survey of Acute Coronary Syndrome.
Apoptosis
Abstract
—Apoptosis is an active form of cell death that is intricately regulated and distinct from necrosis. Data suggest that apoptosis may play a role in the pathophysiology of coronary atherosclerotic disease. Anatomic evidence of apoptosis has been observed in coronary atherosclerosis, restenosis, and transplant arteriopathy, accompanied by an increase in biochemical and genetic markers of apoptosis. Vasoactive substances such as nitric oxide and angiotensin II also regulate vascular smooth muscle cell apoptosis; vasodilating factors may induce apoptosis, whereas vasoconstricting factors may inhibit apoptosis. The aim of this article is to review key points regarding the detection of apoptosis, its regulation, and its possible role in the pathogenesis of coronary artery disease.
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Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
Unanswered ethical and scientific questions for management acute coronary syndrome: patients without obstructive lesions.
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
Both spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Dispelling the Myths Behind First-author Citation Counts
We 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
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