1,721,185 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
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
Prevalence of skin conditions among pediatric patients in the region of Düzce
Full text linkYÖK Tez No: 447363Amaç: Pediyatrik dermatoloji ülkemizde yeni tanımlanan bir alandır. Epidemiyolojik verilere katkıda bulunmak amacıyla, polikliniğimize başvuran çocuklardaki deri hastalıklarının prevelansını ve sosyodemografik özelliklere göre dağılımını belirlemeyi amaçladık. Gereç ve Yöntem: Düzce Üniversitesi Tıp Fakültesi Dermatoloji polikliniğine Ekim 2013 – Nisan 2014 tarihleri arasında başvuran 16 yaş ve altındaki 300 pediyatrik hastanın yaş, cinsiyet ve ikamet bilgileri kaydedildi. Hastalar Düzce ili ve ilçelerinin merkezinde oturanlar ve kırsal bölgede oturanlar olarak iki ayrı gruba alındı. Yaşlarına göre 4 ayrı gruba ayrılarak, her yaş grubunda en sık görülen hastalıklar incelendi. Bulgular: Çalışmamızdaki 300 hastanın yaşları 16 ay ile 16 yaş arasındaydı ve yaş ortalaması 8,83(±5,15) yıl olarak belirlendi. Hastaların 152'si kız (% 50,7), 148'i (% 49,3) erkekti. Kız/erkek oranı 1.02 idi. Kızların yaş ortalaması 9,23 (±4,79) yıl, erkeklerin yaş ortalaması 8,42 (±5,48) yıl idi. En sık görülen hastalık grubu enfeksiyöz hastalıklar (% 24,7) olup bunu ekzema (% 23) ve akne (% 17) izlemekteydi. Yaş gruplarına göre ayrıldığında 0-2 yaş için ekzema, 3-5 yaş ve 6-10 yaş için enfeksiyöz hastalıklar, 11-16 yaş için akne ilk sırayı oluşturmaktaydı. Yaşanılan çevreye göre bakıldığında kırsal bölgede yaşayanlarda enfeksiyöz hastalıkların görülme sıklığı daha yüksek olarak tespit edildi (p<0.001). Sonuç: Çalışmamızda Düzce bölgesinde enfeksiyöz hastalıklar en sık görülen hastalık olarak tespit edilmiştir. Ancak çalışmamız az sayıda hasta ile yapılmış kısa süreli kesitsel bir çalışmadır. Daha çok sayıda hastanın incelendiği çalışmalara ihtiyaç vardır. Yeni çalışmalar pediatrik popülasyonda görülen deri hastalıklarının sıklığını anlama ve koruyucu önlemlerin planlanması açısından yol gösterici olacaktır.Aim: Pediatric dermatology is a new area in our country. We studied the prevalence of skin disorders and the distribution of skin disorders according to sociodemographic features in pediatric patients applying to our policlinic and tried to contribute to epidemiological data. Material and Methods: : Age, gender and address informations of 300 pediatric patients admitted to Dermatology Department of Medical Faculty in University of Düzce, between October 2013 and April 2014 were recorded. Patients were grouped into two categories as residents in urban areas and residents in rural areas. Also, patients were divided into four age groups and the most common skin disorders in each age group were determined. Results: 300 patients were aged between 16 month and 16 years old and was mean of 8,83 (±5,15) year age. In the study group, 152 of patients were female (% 50,7), 148 of patients were male (% 49,3). Female to male ratio was 1,02. The mean age of female and male was 9,23 (±4,79) year and 8,42 (±5,48) year. Infectious disorders (% 24,7) were the most common disorders, fallowed by eczema (% 23) and acne (% 17). The most common disorder was eczema aged 0-2 years, infectious disorders were aged 3-5 years and 6-10 years and acne was aged 11-16 years. The rate of infectious disorders was significantly higher in rural areas. Conclusion: The prevalence of infectious diseases were the highest in Düzce. However, our study is a short-term, sectional study. Studies that more patients enrolled are needed. The new studies would be helpful in understanding the prevalence of pediatric skin disorders and planning the preventive measures
Asymmetric dimethylarginine (ADMA) levels to investigate in patient with psoriasis
Full text linkYÖK Tez No: 329865Amaç: Psoriasis obezite, metabolik sendrom, kardiyovasküler hastalıklar gibi birçok komorbidite ile ilişkilendirildirilmektedir. Asimetrik dimetilarjinin (ADMA) nitrik oksit sentezinin major inhibitörüdür. Son çalışmalarda serum ADMA ve inflamatuar bir belirteç olan yüksek sensitif C Reaktif Protein (hsCRP) düzeylerindeki artışın endotel disfonksiyonu ve artmış aterogenez ile ilişkili olduğu gösterilmiştir. Bu çalışmada psoriasis hastalarında ADMA ve hsCRP serum seviyelerini ölçerek psoriasis hastalarında endotelyal disfonksiyon olup olmadığını belirlemeyi amaçladık.Yöntem: Çalışmaya 35 psoriasisli hasta ve 26 gönüllü kontrol grubu dahil edildi. Tüm katılımcıların vücut kitle indeks (VKİ) ölçümleri yapıldı ve biyokimyasal parametreler için açlık kan örnekleri alındı. Hasta ve kontrol gruplarının serum ADMA, hsCRP, HDL, LDL, trigliserid, total kolesterol düzeyleri ve VKİ kıyaslandı. Psoriasis alan şiddet indeksi (PASI) skoru ile ADMA düzeyleri ve hsCRP arasındaki ilişki kıyaslandı.Bulgular: Hasta ve kontrol grubu arasında demografik özellikler ve tüm laboratuar parametrelerinin düzeyleri arasında istatistiksel anlamlı farklılık yoktu. Psoriasisli hastalarda PASI skoru ile ADMA seviyeleri, VKİ ve laboratuar parametreleri arasında anlamlı bir ilişki ve korelasyon saptanmadı PASI skorları ile hsCRP düzeyleri arasında anlamlılık ve orta derecede pozitif korelasyon saptandı (r=0,73; p?0,01).Sonuç: Hafif ve orta şiddetteki psoriasis kardiyovasküler hastalıklar açısından bağımsız bir risk faktörü olmamakla beraber, hsCRP seviyelerinin tedaviye yanıt ve hastalığın şiddetini belirlemede PASI?ye alternatif objektif bir belirteç olarak kullanılabileceği sonucuna ulaşılmıştır.ANAHTAR KELİMELER: asimetrik dimetilarjinin, yüksek sensitif C reaktif protein, kardiyovasküler risk, komorbiditeler, psoriasisAim: Psoriasis is associated with multiple comorbidities such as obesity, the metabolic syndrom and cardiovascular diseases. ADMA is a major inhibitor of nitric oxide sentase in humans. Recent reports have demonstrated that elevated hsCRP, is an inflammatory marker, and plasma ADMA levels are associated with endothelial dysfunction and increased atherogenesis. We aimed to determine by measuring the serum levels of ADMA and hsCRP in patients with psoriasis, whether endothelial dysfunction and psoriasis is an independent risk factor for cardiovascular disease.Methods: Thirty five psoriatic patientes and twenty six healty control grup were included into the study. Body mass index of all participants were measured and fasting blood samples were taken for the biochemical parameters. Serum levels of ADMA, HDL, LDL, trigliserid, total cholesterol, hsCRP and BMI were compared between patient and control subjects. The relationship between ADMA and hsCRP levels compared with PASI score.Results: There was no statistically significant difference between psoriatic and control groups for the demographic characteristics, and all laboratory parameterslevels. There was no significant relationship and correlation between PASI score and ADMA, BMI and laboratory parameters. Statiscally significant and modorate correlation was found between PASI score and hsCRP (r=0,73; p?0,01).Conclusion: Mild and modorate psoriasis is not independent risk factor for cardiovascular disease. Hovewer ıt is concluded that the levels of hsCRP can be used as an alternative marker to PASI for response to treatment and to determine the severity of the disaese
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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