1,720,960 research outputs found
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
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
Psychiatric Comorbidities and BMI: An Exploratory Analysis
Full text linkBackground: Individuals with most forms of mental illness have higher rates of obesity than members of the general public putting them at an increased risk for many physical health problems that reduce both quality of life and life expectancy. The presence of multiple comorbid psychiatric disorders has been associated with poorer clinical outcomes in other mental health measures such as disability and sobriety and is proposed as a risk factor for elevated BMI (body mass index) in this study.
Objective: Determine if multiple psychiatric comorbidities are associated with elevated BMI and, if so, which combinations are linked with the greatest risk.
Design: A secondary analysis of the Collaborative Psychiatric Epidemiology Surveys dataset. The psychiatric disorder group (N=7,355) included individuals reporting symptoms of one or more mental illnesses. Controls (N=12,658) included subjects reporting no symptoms suggesting the presence of a psychiatric disorder. BMI was examined using descriptive statistics, t-tests, and Chi-square analyses.
Results: The number of comorbid psychiatric disorders an individual had was associated with BMI. In particular, bipolar disorder, agoraphobia, panic disorder, and attention-deficit hyperactivity (ADHD) disorder had the greatest number of association and the largest effect sizes.
Conclusion: Medical professionals should monitor patients more closely for weight gain when they have multiple psychiatric disorders. Patients with bipolar disorder, agoraphobia, panic disorder, and ADHD should be of particular concern
Association between Socioeconomic Status and BMI among People with Schizophrenia and Bipolar Disorder
Full text linkBackground: Many health disparities among individuals with schizophrenia and bipolar disorder are due to obesity-associated diseases. Several causes of obesity have been discovered, but few risk factors are known. In the general public, low socioeconomic status (SES) is associated with obesity.
Objective: Examine the relationship between SES and body mass index (BMI) among people with schizophrenia and bipolar disorder.
Design: A secondary analysis of the Collaborative Psychiatric Epidemiology Surveys dataset. The psychiatric group (N=480) included individuals with symptoms of schizophrenia or bipolar disorder. Those reporting no symptoms were controls (N=5,161). Childhood SES variables included mother and father education and profession, government assistance, having gone hungry, and not having received needed medical care. Adult SES variables included food security, financial security, and government assistance. SES and BMI were examined using descriptive statistics and t-tests.
Results: BMI was higher in the psychiatric group than controls (28.3 v. 27). Age, sex, occupation, and education were associated with BMI for controls. Age, sex, financial insecurity, and receiving government assistance elevated BMI in the psychiatric group.
Conclusion: Findings suggest monitoring patients with low SES most closely
Association between Adverse Events in Childhood and BMI among People with Schizophrenia and Bipolar Disorder
Full text linkBackground: People with schizophrenia and bipolar disorder die significantly earlier than members of the general public (16-18 years and 12-13 years, respectively). Diseases associated with obesity such as diabetes, heart disease, and stroke account for much of this discrepancy. People with mental illness often have difficulty losing weight despite intensive interventions. As a result, nurses caring for patients with mental illness need to monitor their weight diligently and implement individualized interventions to promote achieving or maintaining a healthy weight. Because intensive interventions come with some risk and expense, programs must target individuals with the most potential to develop obesity. In the general public, a history of adverse events in childhood such as abuse are associated with elevated body mass index (BMI). Objective: The purpose of this study is to examine if a history of adverse events in childhood is associated with BMI among people with schizophrenia or bipolar disorder. Methods: A secondary analysis of the Collaborative Psychiatric Epidemiology Surveys. BMI was calculated using self-reported height and weight. A history of a number of self-reported adverse events in childhood was used to form comparison groups. These relationships were examined both among people with schizophrenia (n=181) or bipolar disorder (n=299) and respondents with no psychiatric disorders (n=5,161). Results: Among subjects without mental illness, only a history of physical abuse by someone other than a parent was significantly associated with elevated BMI. Among individuals with schizophrenia or bipolar disorder, a history of physical abuse by a parent and emotional neglect from the subject\u27s father were associated a higher BMI. In particular, among females the odds-risk (OR) for obesity associated with physical abuse from parents was 3.34 while the OR associated with paternal emotional neglect was 2.44. Within both groups, no adverse events were significant related to BMI among males. Two types of adverse events were significantly linked with BMI in the psychiatric disorders group and one was significant in the control group. Discussion: This study indicates that practitioners should pay especially close attention to weight management among their female patients with a history of adverse events in childhood
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