1,721,030 research outputs found
Caswell, Hollis L., Persistent Curriculum Problems, Educational Forum, 43(November, 1978), 99-110.*
No full textIdentifies three problems encountered during the author\u27s years of work in curriculum that still persist: the definition of the basics, procedures to improve the curriculum, and general education
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
Variations on the Author
Full text link“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
Full text linkWe 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
Hepatic glucocorticoid receptor expression in adult sheep following early gestational and / or postnatal undernutrition
No full textIn humans and animals environmental constraints during pre- and postnatal life result in phenotypic changes that can be associated with altered cardiovascular and metabolic disease risk in later life (Barker et al., 2002, Poore et al., 2006). The liver is a key organ in glucose and lipid metabolism and altered maternal diet or body composition are associated with changes in fetal liver blood flow (Haugen et al., 2005). Intrauterine challenges such as hypoxia alter blood flow to left and right lobes of the liver differentially. Maternal gestational low protein diet in rats alters adult hepatic gene expression with different effects between liver lobes (Zhang & Byrne, 2000). The glucocorticoid receptor (GR) is a gene associated with disturbances in cardiovascular and metabolic control. However the interaction between pre- and postnatal environments on hepatic GR is unknown. We investigated the effect of reduced early gestation maternal nutrition and/or early postnatal life undernutrition on the expression of GR in adult sheep liver. Welsh Mountain ewes received 100% (C, n=36) or 50 % of total nutrient requirements (U, n=39) from 1-31 days of gestation, and 100 % thereafter. Offspring were fed ad libitum (CC, n=20; UC, n=19) or to reduce body weight to 85 % of individual target weight from 12 to 25 weeks postnatal age and ad libitum thereafter (CU, n=17; UU, n=21). Each group contained approximately equal numbers of males and females and the ratio of twins to singletons was ~2:1. Offspring were sacrificed at 2.5 years, the livers were harvested and segments from the left and right lobes were frozen in liquid nitrogen. GR mRNA levels were measured by semi quantitative RT-PCR and normalized using the mean of three housekeeping genes (RPL19, ?Actin and GAPDH) selected by use of the geNormTM normalizing kit. All data were analysed by ANOVA. Early life nutrition had no effect on GR mRNA expression. GR mRNA expression was significantly higher in males than females (P<0.001). In both males and females the right liver lobe had higher GR mRNA expression than the left (P<0.001). In females, twins had a higher GR mRNA expression than singletons (P<0.05). We conclude that differences in GR expression between left and right lobes of the liver exist in adult sheep, although early gestation and/or postnatal nutrition did not affect these levels. Our finding of increased GR mRNA expression in males suggests that they may be more sensitive to the adverse effects of excess glucocorticoids
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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