1,721,102 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
Nutritional and smoking advice to patients with or at risk of age-related macular degeneration by optometrists in Singapore
Full text linkAge-related macular degeneration (AMD) is the leading cause for visual impairment and blindness registration in the developed world. Globally, 8.7% of the population has AMD and it has been projected that the number of people afflicted with AMD by 2020 will be 196 million, increasing to 288 million by 2040. AMD is multi-factorial and the key pathogenesis of AMD is not known, but it has been postulated to be related to oxidative stress. As there is no known treatment for atrophic AMD, many researchers have investigated the modifiable risk factors such as smoking and diet to prevent progression to neovascular AMD. Following large clinical trials such as AREDS and AREDS 2, many supplements to support eye health emerged in the market. With such a large selection of products and various information, this could be confusing for the patients and even eye care practitioners. This doctorate programme consists of three distinct studies (chapters three to five) and the first objective of this research was to evaluate the nutritional and smoking advice for patients with or at risk of AMD by optometrists in Singapore. This objective was achieved via a questionnaire (online and hardcopy) (chapter three) as well as face-to-face in-depth interviews (chapter four). The questionnaire consisted of 41 questions and participants received the hardcopies through mail or an online link through social media or email to complete the questionnaire electronically. The questionnaire elicited demographic information, frequency of dietary advice to patients with early, advanced or at risk of AMD, as well as smoking advice to AMD patients. The response rate of the questionnaire was 18.2%. 52.9% of the respondents provide dietary advice to patients with advanced AMD most of the time, and 31.7% of the respondents provide dietary advice to patients at risk of AMD most of the time. Optometrists in Singapore advise AMD patients to consume green leafy vegetables and oily fish but seldom advise on the amount to consume. Slightly more than one-third of the optometrists in Singapore will inform smokers of the link between smoking and AMD and slightly more than half will advise AMD patients to stop smoking. From the face-to-face in-depth interviews, Singapore optometrists do believe that nutrition are beneficial for the eye but they need more knowledge and a guideline in this area to be more confident when providing nutritional advice for AMD patients. The second objective of this research was to evaluate a Clinical Decision-Making Aid (CDMA) in the form of a flowchart to determine its impact on the self-efficacy of qualified and student optometrists in providing dietary advice regarding risk or progression of AMD (chapter five). The results show that the self-efficacy scores increased after using the CDMA for both qualified and student optometrists and the number of correct answers for five simulated clinical scenarios also increased after using the CDMA. Despite some conflict regarding nutritional research for AMD, provision of appropriate nutritional and smoking advice is important with regard to reducing risk of progression to sight loss related to AMD. Moreover, optimising nutritional intake and avoiding smoking are beneficial for general well-being. This thesis shows that, with the CDMA, eye care practitioners are able to provide more accurate and research-based nutritional information to their AMD patients with more confidence
Beliefs and understanding of food allergy in children and adolescents aged 11-16 years in the United Kingdom
Full text linkChildren and adolescents with food allergy (FA) face significant challenges in managing their condition. Adolescents are at the highest risk of FA reactions and have the highest frequency of fatal reactions. However, previous research about FA beliefs is limited. Furthermore, though previous research suggests the importance of peers, there are no previous studies that explore adolescent peers’ beliefs about FA. This thesis comprises of four studies to explore beliefs about FA in adolescents aged 11-16 years in the United Kingdom. An inductive mixed methods pragmatic approach was adopted for flexibility, with each study informing development of the next in this exploratory research. First, a systematic review of beliefs about FA in adolescents aged 11-19 years was conducted to identify previous research and gaps in knowledge. This informed development of two qualitative semi-structured interview studies in adolescents aged 11-16 years; one for adolescents with FA and one for adolescents with no clinical history of FA. The systematic review and both qualitative studies were analysed with thematic analysis (Braun & Clarke, 2008). From these findings, two scales were developed: The Adolescent Food Allergy Beliefs scale (AFAB) and the Adolescent Food Allergy Beliefs scale: Peers without food allergy (AFAB-P). Both preliminary scales demonstrate good reliability and validity. Recommendations for future research include further understanding of peer beliefs, especially where interventions include peer-education. Further understanding of the psychological impact of different FA diagnoses should be explored. The preliminary AFAB and AFAB-P, with further validation, may be useful in clinical and educational settings to identify and address beliefs to reduce risk-taking behaviour and peer stigma, and decrease the rate of reactions in this age range
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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