1,720,967 research outputs found
Healthy Style : un progetto di ricerca-formazione-intervento per la divulgazione di stili di vita salutari nella città di Napoli
La ginnastica dolce come strumento di prevenzione delle sindromi algiche da ipomobilità e degli incidenti domestici negli anziani: risultati preliminari di un’indagine condotta nella città di Napoli
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
Effects of physical fitness on waist circumference in a group of school children living in Southern Italy
Abstract
Purpose Physical fitness (PF) is considered an important
health marker already in youth with positive influence on
adult health. The aim of this study was to investigate the
effects of overweight/obesity on most relevant healthrelated
physical fitness (HRPF) components in a group of
school-age children.
Methods One hundred and thirteen children (49 male; 64
female; 11–13 years) living in Naples were recruited for
the study. Height, weight, waist circumference (WC) and
Body Mass Index (BMI) were measured. Physical activity
(PA) level and sedentary time were determined by a standard
7-day recall questionnaire. HRPF components were
evaluated using EUROFIT-test battery and other validated
tests.
Results Overweight/obesity accounted for 32 % in our
sample. PA level was significantly higher in boys than in
girls and was associated with better performance in several
PF tests in boys. Further, boys had a significant higher
performance than girls in almost all HRPF evaluated
(p\0.05) except for sit-and-reach test, independently
from PA level. Overweight/obesity specifically impaired
performance in bent arm hang and one-half mile run–walk
in boys. In addition, boys with higher WC values had
poorer performance in 4 9 10 m shuttle run, flamingo
balance and standing broad jump tests (p\0.05). One-half
mile run–walk test resulted significantly associated with
higher WC values in a multiple linear regression analysis in
boys (p\0.05).
Conclusions This study confirms an inverse relationship
between overweight/obesity and PF. In particular, high WC
values appeared to be strongly associated with poor aerobic
performance in boys. Our results also suggest that the
mile run–walk test represents a useful test to identify
children with a higher cardio-metabolic risk as represented
by high abdominal adiposity
Variations on the Author
“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
We 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
La prevenzione delle sindromi algiche da ipomobilità negli anziani attraverso la ginnastica dolce: risultati di un'indagine preliminare
Dispelling the Myths Behind First-author Citation Counts
We 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
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