1,720,964 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
Langerhans Cell Histiocytosis with Thyroid Involvement in a 3 Year-Old Child - a Case Report
No full textLangerhans cell histiocytosis (LCH), a monoclonal disease of histiocytes, may involve several organ systems but rarely primarily involves the thyroid gland. This report presents an extremely rare case of LCH of the thyroid in a 3-year-old boy who presented with a neck mass for several weeks. LCH of the thyroid should be considered in the differential diagnosis of a child with a thyroid mass. Pulmonary examination should be done in these patients
Hydatid Cyst Disease in Khozestan Province, Iran
Full text linkBackground: Hydatid cyst is endemic in Iran. Liver is the most common
organ involved. Lung, brain, and other organs may also be involved. The
aim of this study was to evaluate the clinical manifestation and
complications of hydatid cyst disease in Khuzestan, Iran. Methods: This
was a retrospective study. The study population included both children
and adults admitted in Imam Khomeini hospital over a 5-year period
starting from 2001. In this study, age, sex, place of residency, fever,
jaundice were asked and recorded for each cases. data was analyzed by
SPSS ver 16.0 (Chicago, IL,USA). T-test and Chi-square were used for
comparison. Results: Of the 289 cases, 44.6% were males and 55.4% were
females. Mean±SD of age was 41.6±7.59. Liver and lung
involvements were seen in 174 (60.2%) and 97(33.7%) of cases
respectively. The majority (64%) of all cases were from rural area. The
recurrence rate was 19.3%. Frequency of clinical manifestion in
descending order included abdominal pain (58.8%), dyspnea (32.9%),
cough (23.9%), jaundice (22.9%), and fever (21.1%). The mean age in
patients with jaundice was significantly higher than patients without
jaundice (P<0.001). Icterus was more common in male cases than
female cases (p=0.024). Dyspnea was more common in female cases
(P=0.0024). There was a higher incidence of dyspnea in patients with
dull abdominal pain than cases without abdominal pain (P<0.001).
Conclusion: Most of the cases had liver and or lung involvement.
Jaundice was more common in males than in females. Dyspnea was more
common in female cases
Biliary Tract Disease in Pediatric Surgery Department: 10 Years Experience in Khouzestan-IRAN
Full text linkIntroduction: Our aim was to evaluate clinical manifestation, and outcome of biliary tract disease in patients referred for treatment to two referral centers of pediatric surgery of Ahvaz.Materials and Methods: In this retrospective study, patients with biliary tract disease admitted in Imam Khomeini and Abuzar hospitals (two referral centers for pediatric surgery in Ahvaz) during a 10-year period starting from March 2000 were evaluated. Age, sex, clinical manifestation, type of surgery, imaging finding, laboratory finding, duration of hospital stay, blood product infusion, and mortality rates were recorded. Data was analyzed with SPSS Ver 13.0(Chicago, IL, USA). We used Chi-square and t-test for comparison.Results: Twenty cases (m=13, f=7) of biliary atresia were included in this study. Mean age at the time of diagnosis and operation was 82.11 days (30 days- 6.5 months). Jaundice (100%), acholic stool (55%), and dark brown urine (55%) were the most frequent clinical manifestation in patients with biliary atresia. Of all cases, 17 patients underwent surgery. Eighteen cases (m=11, f=7) of cholecystitis were included in this study. Abdominal pain (72%) was the most frequent sign. Eleven cases underwent surgery. Five cases of choledochal cyst (m=0, f=5) were included in this study. Abdominal pain and vomiting was the most common clinical manifestation in cases with choledocal cyst.Conclusion: Jaundice, acholic stool, and dark brown urine were the most frequent clinical manifestation in cases with biliary atresia. Mean age at the time of diagnosis and operation for biliary atresia was 82.11 days (30 days- 6.5 months). Abdominal pain was the most frequent sign of cholecystitis. Early referral and more experience are needed in order to increase survival of biliary atresia cases in our hospital
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
- …
