1,720,990 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
Dyslipidemia in Patients With Active Rheumatic Disease
No full textINTRODUCTION: Rheumatic diseases have been found to be associated with an increased risk of cardiovascular disease (CVD) and dyslipidemia. Constant state of inflammation among patients with active rheumatic diseases predispose to endothelial damage leading to increased risk of dyslipidemia and CVD. Dyslipidemias are being increasingly recognized as an important contributory factor towards the development of CVD and also the leading cause of death in various autoimmune diseases. We aim to study the prevalence and pattern of dyslipidemia in these patients.MATERIALS & METHODS: Consecutive patients with active rheumatic disease of >3months duration and fibromyalgia attending rheumatology OPD were included from January 2013 to January 2014. Patients with diabetes, hypertension, hypothyroidism, CAD, CKD and those on statin or fibrates were excluded. Activity was determined by clinical features, ESR and CRP levels. Data were collected on predesigned excel sheet including fasting lipid profile.RESULTS: A total of 560 patients were enrolled (RA-255, SLE-70, other-45, FMS-190). Any form of dyslipidemia was found in 75.9% of patients. Isolated raised triglyceride >300mg/dl was seen in 178 (41.9%) of them, whereas LDL>120mg/dl was seen 235(55.3%) of patients (23.7% had LDL>200). Almost all patients (98.7%) had LDL:HDL ratio of >2.5. Dyslipidemia was seen in 86 (45.2%) patients with fibromyalgia but none of them had LDL>120 mg/dl.CONCLUSION: Patients with active rheumatic disease are likely to have significant dyslipidemia which can contribute to excess cardiovascular mortality in these patients. Early identification and correction of significant lipid abnormalities may help to reduce the morbidity and mortality in these patients.Journal of Universal College of Medical Sciences (2016) Vol.04 No.01 Issue 13, page: 6-9</jats:p
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
Comparison of Ultrasonology Findings with Clinical Parameters and Plain Radiograph in Patients with Knee Osteoarthritis
No full textBackground: Knee osteoarthritis (OA) is one of the commonly encountered joint diseases in people with a prevalence ranging up to 7.9% in adult population. There are various clinical and radiologic instruments to measure the disease severity of knee OA. Western Ontario and McMaster Universities Arthritis Index (WOMAC), Knee Injury and Osteoarthritis Outcome Score (KOOS), Short Form (SF)-12, SF-36 are few commonly used clinical instruments. Kellgren-Lawrence classification (KL) is commonly used radiographic tool to assess the severity of osteoarthritis. Nowadays, high frequency musculoskeletal ultrasonology (MSUS) is being used as a reliable tool for assessment of osteoarthritis. Methods: A prospective, cross sectional study was conducted in patients with knee OA attending a tertiary level rheumatology center in Kathmandu, Nepal. Ethical clearance was taken from NHRC Nepal. Baseline demographic profile of the patients along with clinical parameters like WOMAC and VAS for pain and stiffness were recorded in predesigned data sheet. An AP view standing Xray was obtained for involved knee and KL grading done. High frequency MSUS was done for same knee. Synovial hypertrophy, suprapatellar effusion, cartilage thickness (medial, lateral and intercondylar), Doppler activity and osteophytes were noted. Pearson’s coefficient of correlation was calculated to assess correlation between ultrasonology and radiologic parameters. Results: A total of 138 patients with knee OA were enrolled in the study with female predominance of 83% and mean age of 56.87 ± 10.61 years. The mean VAS for pain and WOMAC scores were 4.95 ± 1.78 and 28.36 ± 13.31, respectively. A negative correlation was observed between cartilage thickness (medial) with joint space narrowing (KL grade) and between WOMAC and VAS scores and cartilage thickness. Conclusions: MSUS may be used in clinical practice to diagnose and monitor cases of knee osteoarthritis. It is a potential imaging technique which might help in therapeutic interventions and disease monitoring too
Takayasu Arteritis: A Case Series from Tertiary Rheumatology Center from Nepal
No full textBackground Takayasu arteritis (TA) is an idiopathic, granulomatous, large-vessel arteritis that predominantly involves the aorta, its major branch arteries. Then objective is to evaluate the clinical features, angiographic findings and response of treatment Method 12 patients with TA were studied at the NCRD between 2018 and 2023 and were followed for 3 months to 5 years. Data on clinical features, angiographic and laboratory findings, disease course, and response to therapy were all recorded and stored in a computer-based retrieval system. Result TA was more common in females (54%). The mean age at disease onset was 37.08± 16.91 years. The clinical presentation ranged from asymptomatic to catastrophic with uncontrolled hypertension, gradual loss of vision. The most common clinical finding was a fatigue and dizziness. Hypertension was most often associated with renal artery stenosis (4 out of 12). Almost 50% of the patients had systemic symptoms on presentation. Medical therapy was required for all of the patients. Immunosuppressive treatment with glucocorticoids helped achieve remission (ITAS-0) whereas remaining had decrease in disease activity with one reported mortality. Conclusion In Nepal, Takayasu arteritis is a rare disease. It is heterogeneous in presentation, progression, and response to therapy. Although mortality was low, substantial morbidity occurred in most patients
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