1,720,981 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
Ogilvie's syndrome presented with delirium in an older lady with corticobasal syndrome
No full text© 2021 The Author(s). Published by Cambridge University Press.Objective Corticobasal syndrome (CBS) is one of an atypical parkinsonian syndromes characterized by extrapyramidal features as well as cortical involvement signs. A variety of factors may lead to delirium in older adults with chronic progressive life-limiting neurological illnesses like CBS. Ogilvie's syndrome (OS) is an acute colonic pseudo-obstruction in which abdominal distension, nausea, vomiting, and constipation can be seen. We report a case of OS identified as the underlying possible cause of delirium in an 80-year-old woman with CBS. We also discuss the importance of holistic approach which is essential to manage the underlying cause and to preserve the quality of life in particular for the frail geriatric population who potentially needs palliative care or already benefits from palliative care. Method An older patient with CBS presented with symptoms similar to that of acute colonic obstruction and subsequently developed delirium. The patient was found to have colonic pseudo-obstruction (OS). Result Neostigmin infusion was therefore given to treat it and delirium was resolved. Significance of results To the best of our knowledge, clinical manifestation of delirium as OS in a patient with CBS has not been previously reported. OS may be superimposed to CBS in older patients, and OS in such patients may play a role as a precipitating factor for the development of delirium. Given the fact that CBS is progressive and rare neurodegenerative disease and almost all of these patients need palliative care, eventually, health-care professionals, especially in palliative care, should be aware of distinctive challenges of life-limiting chronic neurological illnesses, such as conditions that may lead to the development of acute colonic pseudo-obstruction because the rapid treatment of them prevents the use of potentially harmful drugs, surgical procedures, or inappropriate interventions
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
GERİATRİ PRATİĞİNDE RASYONEL FARMAKOTERAPİ
No full textYaşlanma doğumla başlayıp ölüme kadar devam eden hem genetik hem de çevresel bileşenle-rin etkilediği çok faktörlü bir süreçtir. Canlılarda yaşlanma ilerleyici ve geri dönüşümsüzdür.İlerleyen yaş ile birlikte ortaya çıkan heterojen değişiklikler fonksiyonellikte gerilemeye yolaçmaktadır. Yaşlanma sürecini anlamak ve iyileştirebilmek için birçok farklı mekanizma ortayaatılmıştır. Bu bölümde en sık kabul gören yaşlanma teorileri özetlenmeye çalışılmıştır.Aging is a multifactorial process that starts with birth and continues until death, affected byboth genetic and environmental components. Aging in living things is progressive and irrevers-ible. Heterogeneous changes that occur with advancing age lead to a decline in functionality.Many different mechanisms have been proposed to understand and improve the aging process.In this section, the most widely accepted aging theories are tried to be summarized.</p
Preventive Medicine in Geriatric Practice
No full textOsteoporoz, bozulmuş kemik mikromimarisi ve kemik kütlesindeki azalma sonucu ortaya çıkanve kemik kırılganlığına neden olan ilerleyici bir metabolik kemik hastalığıdır. Osteoporozun en önemliklinik sonucu morbidite ve mortalitede önemli artışa neden olan frajilite kırıklarıdır. Kırıklar sağlık sistemleri için önemli bir yüktür. İlerleyen yaş, osteoporoz için önemli ve değiştirilemez bir risk faktörüdür. Bu nedenle yaşlılarla ilgilenen klinisyenler osteoporozu değerlendirebilecek niteliklere sahipolmalıdır. Osteoporoz gelişimini önlemek için değiştirilebilir risk faktörleri düzeltilmeli, 65 yaş üstü kadınlar ve 70 yaş üstü erkekler dual enerji x-ray absorpsiyometri (DEXA) ile taranmalıdır. Osteoporozdafarmakolojik olmayan tedavi yöntemlerine (egzersiz, diyet , yaşam tarzı değişikliği) ek olarak hasta özellikleri, ilaç etkileri ve yan etkiler göz önünde bulundurularak bifosfonatlar, denosumab gibi anti-rezorptif tedavi ajanları veya teriparatid, abaloparatid, romosuzumab gibi anabolik tedavi ajanları arasındanuygun olan ajan seçilerek uygulanmalıdır. Tedavi yanıtı takip edilmeli ve hiçbir tedavi ajanının kullanımısüresiz olarak kabul edilmemelidir. Osteoporosis is a progressive metabolic bone disease that results from deteriorated bonemicroarchitecture and a decrease in bone mass, which causes bone fragility. The most important clinical result of osteoporosis is fragility fractures that result in significant increase in morbidity and mortality. The age is an important risk factor for osteoporosis. Therefore, clinicians interested in older peopleshould have the qualifications to evaluate osteoporosis. To prevent osteoporosis development, the interchangeable risk factors must be corrected, and men over 65 and over 70 must be scanned with dual energy x-ray absorphaly (DEXA). In addition to non-pharmacological treatment methods (exercise, diet,lifestyle change) in the osteoporosis, patient characteristics, drug effects and side effects should be considered, and the appropriate agent must be applied between treatment agents such as biphosphanates,denosumab, teriparatid, abaloparatid, romosuzumab. The treatment response should be monitored, andno treatment agent should be considered indefinitely. </p
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