1,721,128 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
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
Association between Sleep Quality and Metabolic Syndrome in Korea
Get PDF학위논문 (석사)-- 서울대학교 대학원 : 의학과, 2013. 8. 조비룡.서론: 수면의 질과 대사증후군과의 관계에 대한 연구는 미미한 실정으로 본 논문에서는 Pittsburgh Sleep Quality Scale (PSQI)을 이용하여 평가한 수면의 질과 대사증후군과의 관계를 알아보고자 하였다.
방법: 단면조사로 수행된 연구로서 수면의 질과 대사증후군지표와의 관계를 알아보자고 하였다. 2010년 1월부터 2011년 12월까지 서울대학교병원 가정의학과 건강증진센터에 내원한 나이가 18-80세의 3,057 명 (남자 2,076명, 여자 981명)을 대상으로 하였다. 이 대상자 중 대사증후군의 유병율은 21.5% (남자 27.0%, 여자 10.0%)였다. PSQI 총점에 따라 불만족스러운 수면군 (n = 529)과 만족스러운 수면군 (n = 2,528), 두 군으로 분류하였으며 수면의 질과 복부비만, 인슐린 저항성, 대사증후군지표와의 관계를 분석하였다. 대사증후군지표 측정, 인슐린 측정, 복부비만CT (컴퓨터 촬영)을 실행하였다. 대사증후군은 2005년 AHA/NHLBI에서 제시한 진단기준에 따라 정의하였다. 모든 통계분석은 나이, 교육수준, 음주, 흡연, 스트레스, 불안, 우울, 신체활동, 코골기, 고혈압약물 복용에 대해 보정하였다.
결과: 로지스틱회귀분석에서는 수면의 질과 대사증후군의 관계는 유의한 결과를 보이지 않았다 (남자 OR = 1.07, 95% CI: 0.79 - 1.44여자 OR = 1.16, 95% CI: 0.66 – 2.02). 그리고 선형회귀분석에서도 수면의 질과 복부 내장비만, 인슐린, 인슐린 저항성, 대부분 대사증후군 지표들과의 관계는 유의하지 않았다. 다만 남자에서는 불면증과HDL-콜레스테롤 (p = 0.014)은 양의 상관관계를 보였으나, 여자에서는 불면증과 허리둘레 (p < 0.001) 또는 체질량 지수는 (p = 0.009) 양의 상관관계를 보였다.
결론: 수면의 질과 대사증후군과의 관계는 유의하지 않다. 다만 여자에서는 수면의 질과 비만과의 관련성은 있다. 향후 수면장애 집단을 대상으로 수면의 질을 향상시키는 중재 프로그램이 대사증후군에 미치는 효과에 관한 전향적인 코호트 연구가 필요할 것으로 여겨진다.Introduction: To determine whether a simple, structured self-report of overall sleep quality is associated with the presence of the metabolic syndrome and its components.
Methods: An observational, cross-sectional study comparing global score on the Pittsburgh Sleep Quality Index (PSQI) with concurrently collected measures of the components of the metabolic syndrome and presence or absence of the syndrome. A total of 3,057 adults, aged 18 - 80, who visited the Center for Health Promotion of Seoul National University Hospital in Korea between January 2010 and December 2011, were included in this study. The sample included 2,076 males (67.9%) and 981 females (32.1%). The prevalence of metabolic syndrome in our sample was 21.5% (27.0% for males and 10.0% for females). The subjects were divided into two groups of poor sleeper group (n = 529) vs. good sleeper group (n = 2,528) by the Pittsburgh Sleep Quality Index global score. The components of metabolic syndrome, serum levels of insulin and abdominal computed tomography (CT) scans were measured. The metabolic syndrome criterion of the AHA/NHLBI 2005 was adopted. All analyses were adjusted for age, education, alcohol, smoking, stress, anxiety, depression, physical activity, snoring and use of hypertensive drugs.
Results: Logistic regression results showed that global sleep-quality score on the PSQI were not related significantly to the presence of the metabolic syndrome (OR = 1.07, 95% CI: 0.79 - 1.44 for malesOR = 1.16, 95% CI: 0.66 – 2.02 for females). The multiple-regression results showed that the PSQI global sleep-quality score was not related to abdominal visceral fat, insulin levels, insulin resistance and most metabolic syndrome components significantly. However, poor sleep quality was related to high-density lipoprotein (p = 0.014) positively among males, and the predictor of waist circumference (p < 0.001) and body mass index (p = 0.009) gain among females.
Conclusions: In conclusion, self-reported global sleep quality is not related to metabolic syndrome and most its risk factor components. However, obesity is associated with poor sleep quality in women. Additional prospective cohort studies are needed to evaluate relationships among these measures, the behavioral and physiologic mechanisms that link sleep quality and metabolic disorders.Abstract i
Contents iii
List of tables iv
Introduction 6
Methods 8
Results 13
Discussion 34
Reference 37
Abstract (Korean) 42Maste
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
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
Review and Assessment to Support Chronic Noncommunicable Diseases Management in the Primary Care in Korea
No full textAuthor-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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