1,721,157 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
Residential mobility and severe mental illness: a population-based analysis
No full textThis research uses population-based administrative data linking health service use to longitudinal postal code information to describe the residential mobility of individuals with a severe mental illness (SMI), schizophrenia. This group is compared to two cohorts, one with no mental illness, and one with a severe physical illness of inflammatory bowel disease. The percentage of individuals with one or more changes in postal code in a 3-year period is examined, along with measures of rural-to-rural regional migration and rural-to-urban migration. Demographic, socioeconomic, and health service use characteristics are examined as determinants of mobility. The odds of moving were twice as high for the SMI cohort as for either of the other two cohorts. There were no statistically significant differences in rural-to-rural or rural-to-urban migration among the cohorts. Marital status, income quintile, and useof physicians are consistent determinants of mobility. The results are discussed from the perspectives of health services planning and access to housing
Residential mobility of individuals with diagnosed schizophrenia: a comparison of single and multiple movers
No full textSeveral studies have compared
the residential mobility of individuals with
schizophrenia to mobility of individuals with other
mental disorders or with no mental disorders. Little
research has been undertaken to describe differences
between single (i.e., infrequent) and multiple (i.e.,
frequent) movers with schizophrenia, and the association
between frequency of mobility and health and
health service use. Methods The data source is population-
based administrative records from the province
of Manitoba, Canada. Hospital separations and
physicians claims are linked to health registration files
to identify a cohort with diagnosed schizophrenia and
track changes in residential postal code over time.
Single movers (N = 736), who had only one postal
code change in a 2.5-year observation period, are
compared to multiple movers (N = 252), who had two
or more postal code changes. Differences in demographic,
socioeconomic, and geographic characteristics,
measures of health service use, and the
prevalence of several chronic diseases were examined
using v2 tests, logistic regression, and generalized
linear regression. Results Multiple movers were significantly
more likely to be young, live in socioeconomically
disadvantaged neighborhoods, and reside
in the urban core. The prevalence of a co-occurring
substance use disorder and arthritis was higher for
multiple than single movers. Use of acute and
ambulatory care for schizophrenia, other mental disorders,
as well as physical disorders was generally
higher for multiple than single movers. Conclusions
Frequency of mobility should be considered in
the development of needs-based funding plans and
service delivery interventions. Other opportunities to
use record-linkage techniques to examine residential
mobility are considered.<br/
Mental health and the city: intra-urban mobility among individuals with schizophrenia
No full textIntra-urban residential mobility of a cohort with schizophrenia was compared to a matched cohort with no mental
illness using population-based administrative data. The percentage of individuals with one or more changes in postal code
in the three-year mobility study period was examined, along with measures of the movement between different intra-urban
areas. The schizophrenia cohort was more likely to move than the matched cohort; however, this depends on their age,
income level, and area of residence at baseline. Age, gender, marital status, income quintile, and use of physicians and
hospitalizations were associated with mobility. Individuals in the schizophrenia cohort were significantly more likely to
move from the suburb to the inner city, and significantly less likely to move from the inner city to the suburb than those
with no mental illness. Implications of the findings and directions for future research are discussed, with particular
attention paid to the utility of administrative data for further mental health research
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
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