1,720,955 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
The Effects Of Advancing Stages Of Pregnancy On Balance And Stair Locomotion In Healthy Females
Get PDFBackground: One in four females fall while pregnant, which may lead to injury, hospitalization, or birth complications. No empirical research has been conducted on single-limb support (SLS) balance or joint kinematics during stair locomotion in pregnant and postpartum females. The aim of this study was to quantify possible alterations to postural control and stair kinematics in advancing stages of pregnancy when compared to non-pregnant females. Methods: This cross-sectional study compared eighteen females, consisting of six non-pregnant controls, five 2nd trimester, four 3rd trimester, and three postpartum. Center of pressure excursion area data were obtained during static balance trials on a single force platform for 30s in right limb, left limb, and bilateral conditions (1000 Hz). Sacral velocity and joint range of motion at the knee and ankle joints were collected during stair ascent and descent (200 Hz). Depending on the variable, balance and kinematic results were assessed using separate ANOVAs (α=0.05). Results: Single-limb balance was significantly greater than bilateral (p\u3c0.01), but right and left limb conditions were not significantly different from each other among groups (p=0.58). Stair ascent and descent kinematic variables were not significantly different among groups. According to these results, advancing stages of pregnancy did not significantly alter tasks heavily reliant on single-limb support. Therefore, pregnant females with symmetrical limb balance suggests that they may not be in the high-risk category for falls
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
Mechanical Adaptations To Anterior Load And Fall Risks In Nulliparous Women With Simulated Gestational Weight Gain
Get PDFApproximately twenty-five percent of pregnant women experience falls during pregnancy, posing significant risks to maternal and fetal health outcomes. However, research on falls in pregnant women remains limited. PURPOSE: This study aimed to address this gap by comparing static postural stability between pregnant and nulliparous women with simulated gestational weight gain (GWG), thus validating the use of simulated pregnancy; and to observe the mechanical influences of simulated GWG on postural stability in static and dynamic conditions. It was hypothesized that increasing simulated GWG would decrease postural stability in single-limb stance, bilateral standing, margin of stability during gait initiation, and dynamic stability during a slip perturbation. METHODS: Eleven nulliparous women completed four separate data collections while adorning an anteriorly loaded weight-vest with 0, 2.26, 9.07, and 15.88 kg. Participants performed repeated balance, gait initiation, and treadmill slip perturbations under each weighted condition. RESULTS: Pregnant women and simulated pregnant women exhibited similar postural stability characteristics. Static balance was found to only be affected in anteroposterior sway magnitude between baseline and simulated second trimester in bilateral standing. Margin of stability was not significantly different across simulated trimesters during gait initiation. Dynamic postural stability displayed significant decreases at each heel strike between baseline and second trimester, and additional significance at heel strike one and heel strike three between baseline and third trimester. CONCLUSION: Overall, these findings suggest that the mechanical influences of simulated GWG influence the compensatory performance of postural stability during dynamic movements. This study contributes to the understanding of the mechanical aspects of GWG and may translate to the pregnancy-related postural stability changes and fall-risks
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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