1,721,000 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
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
Life satisfaction in late life: Markers and predictors of level and change among 80+ year olds
No full textThe overall aim of the thesis was to examine within-individual and between-individual changes in life satisfaction in the oldest-old using different time metrics and to study life satisfaction within the context of psychosocial and health-related variables. Data were obtained from the Swedish OCTO-Twin Study of individuals aged 80 and older who were able to complete the Life Satisfaction Index-Z (LSI-Z). In Study I the association between life satisfaction and scales and questions regarding demographics, self-rated overall health and medically based health, functional capacity (instrumental and personal activities of daily living), cognitive function, depression, locus of control, and social network was investigated. Analyses indicated that social network quality, self-rated overall health, sense of being in control of one’s life, widowhood, and depressive symptoms were associated with life satisfaction. A gender-specific pattern was found; self-rated overall health and depressive symptoms were related to life satisfaction in women, whereas widowhood was significantly associated with lower satisfaction among men. In Study II the associates identified in Study I; perceived quality of social network, self-rated overall health, depressive symptoms, locus of control, and widowhood, in addition to financial satisfaction and the personality traits neuroticism and extraversion, were investigated as predictors of change in life satisfaction across four measurements over a 6-year period. Growth curve analysis showed a fairly consistent significant linear decline in life satisfaction. Certain markers predicted decrease in life satisfaction; the loss of spouse, particularly in men, and higher levels of depressive symptoms. Results suggest that life satisfaction is influenced by changes in psychosocial variables although there is an overall stability in level of life satisfaction in the oldest old. In Study III different time metrics were examined in the study of late life changes in life satisfaction. Findings of age-graded stability of life satisfaction, despite health-related losses distinctive of the oldest old, suggest that mortality-related processes could be more influential than chronological age. The study investigated changes in life satisfaction at 4 measurement occasions over a 6-year period using two competing parameterizations of time, chronological age and time-to-death. Growth curve analyses showed a linear decrease in both time-structures, but the time-to-death metric revealed a significantly better model fit. Notably, age, gender, SES, years to death, level or change in overall load of disease and self-rated health did not predict time-to-death related changes. Lower overall disease load was, however, related to higher levels of life satisfaction. In individuals with higher disease load, an external locus of control was related to lower satisfaction with life. Among those who rated their health as poor, a higher level of neuroticism was related to lower life satisfaction. The results suggest that a time-to-death metric was superior to chronological age to predict change in life satisfaction. In Study IV the relationships between life satisfaction and 25 specific chronic diagnoses were investigated. Problems with sleep, urinary incontinence and stroke were significantly related to life satisfaction in both men and women. Among men, angina pectoris and eczema were related to lower life satisfaction, whereas among women peptic ulcer was related to lower life satisfaction. The results confirm previous findings of a weak relationship between medically based measures of health and life satisfaction. However, health care and future studies of health and life satisfaction need to recognize and address that the meaning and consequences of various diseases may differ among individuals and that gender differences should be considered in this context.
Overall findings from the thesis demonstrate a homogenous decline in life satisfaction in the oldest-old. Despite health-related losses, social network and personal resources accounted for substantial inter-individual differences in life satisfaction. The thesis demonstrated the need to analyse associates of life satisfaction at the intra-individual level and within a broader context of psychosocial and health-related variables also in late lif
Life satisfaction in late life: Markers and predictors of level and change among 80+ year olds
No full textThe overall aim of the thesis was to examine within-individual and between-individual changes in life satisfaction in the oldest-old using different time metrics and to study life satisfaction within the context of psychosocial and health-related variables. Data were obtained from the Swedish OCTO-Twin Study of individuals aged 80 and older who were able to complete the Life Satisfaction Index-Z (LSI-Z). In Study I the association between life satisfaction and scales and questions regarding demographics, self-rated overall health and medically based health, functional capacity (instrumental and personal activities of daily living), cognitive function, depression, locus of control, and social network was investigated. Analyses indicated that social network quality, self-rated overall health, sense of being in control of one’s life, widowhood, and depressive symptoms were associated with life satisfaction. A gender-specific pattern was found; self-rated overall health and depressive symptoms were related to life satisfaction in women, whereas widowhood was significantly associated with lower satisfaction among men. In Study II the associates identified in Study I; perceived quality of social network, self-rated overall health, depressive symptoms, locus of control, and widowhood, in addition to financial satisfaction and the personality traits neuroticism and extraversion, were investigated as predictors of change in life satisfaction across four measurements over a 6-year period. Growth curve analysis showed a fairly consistent significant linear decline in life satisfaction. Certain markers predicted decrease in life satisfaction; the loss of spouse, particularly in men, and higher levels of depressive symptoms. Results suggest that life satisfaction is influenced by changes in psychosocial variables although there is an overall stability in level of life satisfaction in the oldest old. In Study III different time metrics were examined in the study of late life changes in life satisfaction. Findings of age-graded stability of life satisfaction, despite health-related losses distinctive of the oldest old, suggest that mortality-related processes could be more influential than chronological age. The study investigated changes in life satisfaction at 4 measurement occasions over a 6-year period using two competing parameterizations of time, chronological age and time-to-death. Growth curve analyses showed a linear decrease in both time-structures, but the time-to-death metric revealed a significantly better model fit. Notably, age, gender, SES, years to death, level or change in overall load of disease and self-rated health did not predict time-to-death related changes. Lower overall disease load was, however, related to higher levels of life satisfaction. In individuals with higher disease load, an external locus of control was related to lower satisfaction with life. Among those who rated their health as poor, a higher level of neuroticism was related to lower life satisfaction. The results suggest that a time-to-death metric was superior to chronological age to predict change in life satisfaction. In Study IV the relationships between life satisfaction and 25 specific chronic diagnoses were investigated. Problems with sleep, urinary incontinence and stroke were significantly related to life satisfaction in both men and women. Among men, angina pectoris and eczema were related to lower life satisfaction, whereas among women peptic ulcer was related to lower life satisfaction. The results confirm previous findings of a weak relationship between medically based measures of health and life satisfaction. However, health care and future studies of health and life satisfaction need to recognize and address that the meaning and consequences of various diseases may differ among individuals and that gender differences should be considered in this context. Overall findings from the thesis demonstrate a homogenous decline in life satisfaction in the oldest-old. Despite health-related losses, social network and personal resources accounted for substantial inter-individual differences in life satisfaction. The thesis demonstrated the need to analyse associates of life satisfaction at the intra-individual level and within a broader context of psychosocial and health-related variables also in late life
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
