1,720,955 research outputs found
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
Comparative evaluation of procoagulant and proinflammatory markers in drug naive versus oral contraceptive pill’s (OCP’s) treated Polycystic Ovary Syndrome (PCOS) women.
Get PDFPolycystic ovary syndrome (PCOS) is the most common endocrine disorder of young women. There is a spectacular increase in the prevalence of PCOS all over world especially in Asia. The condition seems to be on rise in Kashmir valley although systemic studies on the subject are underway. First line of treatment is often the oral contraceptive pills (OCP’s) as most of these women attend to various gynaecologists and they desire menstrual regulation. Since there is plethora of data that PCOS women have evidence of enhanced markers of inflammation and indicators of coagulation. Therefore treatment with OCP’s may worsen the metabolic, inflammatory and coagulation parameters in this population. We undertook this study to investigate the effect of OCP treatment procoagulant and proinflammatory markers in women with PCOS. The results may therefore translate in to the clinical practice
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Genetic diversity estimates and stability analysis in common bean (Phaseolus vulgaris L.) germplasm of Jammu and Kashmir
No full textSeventy five common bean genotypes were selected in the present study for their morphological characterization, estimation of genetic variability and other genetic parameters, presence of genetic diversity at phenotypic level and genetic distance at the molecular level (using RAPD primers) and stability of some selected genotypes. The experimental material was evaluated in a Randomized Complete Block Design with three replications at three locations, namely Pulse Research Sub-station, Habbak (E-I), Regional Research Station and Faculty of Agriculture, Wadura, Sopore (E-II) and Krishi Vigyan Kendra, Pombay, Kulgam (E-III) during kharif 2008 for genetic divergence and other genetic parameters and in four random environments during kharif 2009 for stability.
Morphological traits of qualitative nature viz., growth habit, leaf characters, stem colour, flower colour, flowering pattern, branching pattern and seed characters were scored, which indicated presence of sufficient variability with respect to these traits. Analysis of variance revealed presence of significant genetic variation among these genotypes for all the traits. G x E interaction was also significant, revealing that genotypes did not perform equally across all the three locations. Genotypic coefficient of variaiton (GCV) was high for seed yield plant-1; moderate for days to 50 per cent flowering, days to maturity, number of pods plant-1, pod length, number of seeds pod-1 and 100-seed weight and low for other traits. For all the traits, estimates of phenotypic coefficient of variation (PCV) were higher than genotypic coefficient of variation (GCV), indicating presence of environmental influence. Heritability estimates (bs) were high for days to 50 per cent flowering, days to maturity, number of pods plant-1, pod length (cm), 100-seed weight (g), seed yield plant-1 (g) and protein content (%). Seed yield plant-1 exhibited a significant positive association with number of branches plant-1, number of pods plant-1, pod length, number of seeds pod-1 and 100-seed weight and negative association with days to 50 per cent flowering and maturity at both the levels.
Estimation of genetic divergence using Mahalanobi’s D2 among bean genotypes was highly significant, while these genotypes got grouped into six, ten and eleven clusters in E-I, E-II and E-III, respectively, but in pooled analysis these genotypes were grouped into three cluster with cluster-I having 23 genotypes, cluster-II (1) and the remaining cluster was monogenotypic. Inter-cluster distance was maximum between clusters-III and IV in E-I, cluster-IV and VII and E-II, cluster-IV and VI in E-II and cluster-I and cluster-III in pooled analysis. The maximum contribution for divergence came from days to maturity (22.52%) followed by 100-seed weight (14.63%), protein content (12.60%), seed yield plant-1 (11.21%) and days to 50 per cent flowering (10.46%). Molecular characterization of thirteen common bean genotypes was done with Random Amplified Polymorphic DNA (RAPD) markers. Initially 15 primers were screened out of which only seven were selected which generated a total of 65 amplification products out of which 63 bands (96.62%) were polymorphic indicating fair amount of polymorphism. The genotypes shared 43% genetic similarity among themselves. Cluster analysis delineated the genotypes into three groups with seven, five and one genotype in cluster-I, II and III, respectively. The maximum similarity index (82.35) based dice similarity coefficient was obtained between SKUA-R-21 and SKUA-R-19, while it was minimum (27.72) between genotypes PBG-29 and SKUA-R-01.
Stability analysis of seventeen common bean genotypes for seed yield plant-1 across 4 random environments revealed that mean square deviation from regression (S2di) was non-significant for SKUA-R-05, SKUA-R-11, SKUA-R-12, SKUA-R-16, SKUA-R-19, SKUA-R-25, SKUA-R-28 and PBG-03 and hence prediction of stability for these genotypes were precise and reliable. The linear regression (bi) was non-significant for SKUA-R-12 and SKUA-R-28 revealing that these cultivars were average in stability. Comparing their performance with the mean, it was observed that SKUA-R-28 was well adapted to all the environments and SKUA-R-12 was adapted to poor environments
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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