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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
Ergenlik döneminde eğlence amaçlı esrar kullanımının ve subklinik psikoz riskinin, beynin beyaz madde bütünlüğüne ve yapısal bağlantısına etkisi
No full textCataloged from PDF version of article.Includes bibliographical references (leaves 43-61).The impact of cannabis use on the psychosis risk in the healthy population has been less examined in the literature. Furthermore, previous diffusion tensor imag-ing and structural connectivity studies investigating the effects of cannabis use and psychosis risk offer contradictory results. To address these gaps and inconsistencies in the literature, the author examined whether recreational use of cannabis increases the risk of subclinical psychosis. The author further ex-amined the relationship between recreational cannabis use, subclinical psychosis, and white matter microstructure or structural network connectivity. Twenty-five adolescent cannabis users and 25 demographically matched controls participated in the study. The Cannabis Experience Questionnaire (CEQ) was used to assess cannabis consumption. Subclinical psychosis was evaluated with the Community Assessment of Psychic Experience (CAPE-42) questionnaire. While ROI-based Tract Based Spatial Statistics (TBSS) was used to examine white matter integrity in specified region of interests, Structural Connectivity Analysis was performed to examine brain structural topology. White matter integrity was assessed by four diffusion tensor derived measures: fractional anisotropy, mean diffusivity, axial diffusivity, and radial diffusivity, while structural network topology was examined by several graph-theory metrics: global efficiency, local efficiency and clustering coefficient. In order to eliminate possible confounding effects of alcohol and to-bacco use, weekly alcohol and daily tobacco consumption were also considered. The findings revealed that cannabis users scored higher on subclinical psychosis compared to non-users. ROI-based TBSS analysis indicated that cannabis use and subclinical psychosis do not affect white matter integrity in corpus collosum and superior longitudinal fasciculus. Similarly, the network connectivity parame-ters were not affected by the recreational cannabis use and psychosis risk. These results might indicate that recreational cannabis use increases the psychosis risk in adolescence, but that recreational cannabis use and subclinical psychosis risk together do not affect white matter microstructure and topology.by Hande Ezgi Atmac
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
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
Konya Kentsel Atıksu Arıtma Tesisi ve Organize Sanayi Bölgesi Atıksularının Toksikolojik Etkilerinin Belirlenmesi
No full textGünümüzde atıkların, atıksuların ve endüstriyel kimyasalların tehlike değerlendirmesi için toksisite testleri sıklıkla kullanılmaktadır. Atıksu arıtma tesislerine gelen ham atıksudaki kirleticilerin tespit edilmesinin sebeplerinden biri de geleneksel atıksu arıtma teknolojileri tarafından tamamen giderilememesidir. Bu nedenle canlı organizma ve çevre kirliliği üzerinde olumsuz etkileri önlemek için atıksuların toksisite değerlendirmesi son derecede önemli olmaktadır. Atıksulardaki toksik etkilerin var olduğu ve bu etkilerin canlılara ve çevreye olası zararlı etkileri göz önüne alınarak, çalışmada atıksulardaki toksik etkilerin araştırılması ve etkilerin ortaya konulması amaçlanmıştır. Yapılan çalışmada, Konya Kentsel Atıksu Arıtma Tesisi (Konya Kentsel AAT) ve Konya Organize Sanayi Bölgesi Atıksu Arıtma Tesisi'nden (KOS AAT) giriş atıksu ve çıkış atıksu olmak üzere iki farklı atıksu numuneleri alınarak toksik etkileri belirlenmeye çalışılmıştır. Atıksuların akut toksisitesi, sucul ve karasal ekosistemlerdeki farklı trofik seviyeleri temsil edebilmesi ve duyarlılık yönünden farklı olmaları nedeniyle su teresi olarak bilinen Lepidium sativum, zehirlilik seviyelerinin belirlenmesi için Balık biyodeneyi (ZSF) ve deniz bakterisi Vibrio fischeri biyoindikatörlerinin kullanıldığı toksisite testleri ile değerlendirilmiştir. Sonuçta, Lepidium sativum toksisite testi sonucunda Konya Kentsel AAT ve KOS AAT'nin giriş ve çıkış atıksu numuneleri için kökte oluşan inhibisyonun gövdede oluşan inhibisyonundan fazla olduğu tespit edilmiştir. Konya Kentsel AAT'nin giriş ve çıkış atıksu numuneleri kök için 'toksik' ve gövde için 'hafif toksik' olarak sınıflandırılmıştır. KOS AAT'nin giriş ve çıkış atıksuyunda toksik etki farkı az olup kök ve gövde için 'hafif toksik' olarak sınıflandırılmıştır. KOS AAT'den alınan giriş ve çıkış atıksuyuna Balık biyodeneyi (ZSF) toksisite testinin uygulanması sonucunda ise, giriş atıksuyunun, çıkış atıksuyuna göre yüksek miktarda ağır metal ve kirletici madde içermesinden dolayı daha toksik olduğu tespit edilmiştir. Ayrıca çıkış atıksuyunun, SSKY Tablo 19'a göre deşarj standartını sağladığı gözlemlenmiştir. Vibrio fischeri toksisite testinde, dört farklı atıksu numunesine aynı seyreltme oranları (%6.25, %12.5, %25, %50) uygulanarak farklı inhibisyon yüzdelerine karşılık toksik birim değerlerine göre sınıflandırılmıştır. Konya Kentsel AAT'nin giriş atıksuyu 'toksik' ve çıkış atıksuyu 'toksik değil' olarak sınıflandırılmıştır. KOS AAT'nin giriş atıksuyu ise 'toksik' ve çıkış atıksuyu 'zayıf toksik'olarak sınıflandırılmıştır. Çalışmanın sonunda, atıksuların toksik açıdan değerlendirilmesinde, her üç testinde kullanılabilir olduğu, farklı atıksu karakterizasyonları için farklı hassasiyetler gözlenebileceği sonucuna varılmıştır.industrial chemicals. One of the reasons for the detection of pollutants in influent is detected by that they cannot be completely removed by conventional wastewater treatment technologies. For this reason, toxicity assessments of wastewater is important due the prevention of their adverse affect on living organisms and environmental pollution. Considering that there are toxic effects in wastewater and the possible harmful effects of these effects on living things and the environment, it is aimed to investigate the toxic effects in wastewater and to reveal the effects. In this study, influent and effluent samples were taken from Konya Urban Wastewater Treatment Plant (Konya Urban WWTP) and Konya Organized Industrial Zone Wastewater Treatment Plant (KOI WWTP) as two different wastewater samples to determine their toxic effects. Due to the their ability to represent different trophic levels in aquatic and terrestrial ecosystems, and their different sensitivity. Lepidium sativum (known as watercress), Fish bioassay (ZSF) was conducted to determine toxicity levels and marine bacteria Vibrio fischeri bioindicators were used in toxicity tests to evaluate acute toxicity of wastewater. Consequently, according to Lepidium sativum toxicity test results it was determined that root inhibition is higher than hypocotyl inhibition in the influent and effluent of the Konya Urban WWTP and KOI WWTP. The influent and effluent samples of Konya Urban WWTP were classified as 'toxic' to root and 'less toxic' to hypocotyl. Toxic effect difference is between influent and effluent samples of KOI WWTP is less and it classified as 'less toxic' for roots and hypocotyl. As a result of applying fish bioassay (ZSF) toxicity test to influent and effluent samples of KOI WWTP, it was determined that influent is more toxic than effluent because it contains high amounts of heavy metals and pollutants. In addition, it was observed that the effluent sample meets the discharge standard according to SSKY Table 19. In the Vibrio fischeri toxicity test, the same dilution ratios (6.25%, 12.5%, 25%, 50%) were applied to four different wastewater samples and classified according to the toxic unit values corresponding to different inhibition percentages. Influent of Konya Urban WWTP was classified as 'toxic' and effluent as 'non-toxic'. Influent of KOI WWTP was classified as 'toxic' and effluent as 'less toxic'. At the end of this study, it was concluded that all three tests can be applied in the toxic evaluation of wastewater, and different sensitivities that can be observed for different wastewater characterizations
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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