1,720,957 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
Walking groups in subjects affected by schizophrenia: a winning strategy against sedentary life style?
No full textPurpose: Subjects with schizophrenia are more likely to be sedentary,
overweight and at higher risk of diabetes, hypertension and dyslipidaemia
than general population. The life expectance is reduced by
7–24 years and about 60% of mortality is due to cardiovascular diseases.
Aim of this study is to include a group of sedentary adults with
schizophrenia in a program of regular physical activity (PA) and to
evaluate the effects of PA on cardiovascular function.
Methods: 12 sedentary subjects with schizophrenia recruited by the
local Public Mental Health Department were included in the study
(age 45 ± 9). Height, weight, BMI, waist circumference and blood
pressure were measured. To assess the baseline walking speed subjects
performed the 1-km test. Heart rate (HR) was monitored
continuously during the test. These evaluations were performed at
baseline and after 6-months of walking. The subjects were guided by
an exercise physiologist to walk 1 h twice/week.
Results: 11 subjects complete the program. The subject not included
in the finishers was hospitalized during the measurement period; he
did not leave the project. The adherence at the program was of 95%.
After 6-months of walking the distance covered in each training
session goes from 4 to 5 km (increase of 25%). No significant
changes in weight and BMI were observed. A degree of 1.2 cm in
waist circumference was observed. The systolic pressure goes from
126 ± 14 to 120 ± 10 (p\0.05). Maximum HR decrease significantly
of 8.4 bpm (p\0.05). In conclusions, the study population
moved from sedentary to physically active. An excellent acceptance
towards the walking group was observed and confirmed by the highest
adherence to the training session. In addition to an improvement in
cardiovascular function and to a reduction in risk factors, an increase
in the capacity for memory and attention in daily activities were
observed.
References
De Hert M et al (2009) Metabolic syndrome in people with
schizophrenia: a review. World Psychiatry 8(1):15–22
Brenda W (2018) Metabolic syndrome in psychiatric patients:
overview, mechanisms, and implications. Dialogues Clin Neurosci
20(1):63–73
Lindamer LA et al (2008) Assessment of physical activity in middle
aged and older adults with schizophrenia. Schizophr Res
104(1–3):294–301
Chiaranda G et al (2012) Peak oxygen uptake prediction from a
moderate, perceptually regulated, 1-km treadmill walk in male
cardiac patients. J Cardiopulm Rehabil Prev 32(5):262–26
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
Efficacy of facial exercises in facial expression categorization in schizophrenia
No full textEmbodied cognition theories suggest that observation of facial expression induces the same pattern of muscle activation, and that this contributes to emotion recognition. Consequently, the inability to form facial expressions would affect emotional understanding. Patients with schizophrenia show a reduced ability to express and perceive facial emotions. We assumed that a physical training specifically developed to mobilize facial muscles could improve the ability to perform facial movements, and, consequently, spontaneous mimicry and facial expression recognition. Twenty-four inpatient participants with schizophrenia were randomly assigned to the experimental and control group. At the beginning and at the end of the study, both groups were submitted to a facial expression categorization test and their data compared. The experimental group underwent a training period during which the lip muscles, and the muscles around the eyes were mobilized through the execution of transitive actions. Participants were trained three times a week for five weeks. Results showed a positive impact of the physical training in the recognition of others’ facial emotions, specifically for the responses of “fear”, the emotion for which the recognition deficit in the test is most severe. This evidence suggests that a specific deficit of the sensorimotor system may result in a specific cognitive deficit
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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