1,721,025 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
Use of Mobile Phone Technology to Support Improved Infant and Young Child Feeding Practices in Low- and Middle-income Countries: A Scoping Review
Get PDFSub-optimal Infant and Young Child Feeding (IYCF) practices persist in Low- and Middle-Income Countries (LMIC), contributing to the burden of malnutrition, morbidity and mortality. Contextualized behavior change communication (BCC) delivered through interpersonal support at the community level is effective for improving IYCF practices, but not widely available in LMIC. This scoping review examined the potential for mobile phone technology to facilitate greater access to quality BCC for IYCF. Four delivery channels were identified through a search of the published and grey literature and consultation with implementers. Direct messaging, voice counseling, job aid applications and interactive media each emphasize different BCC techniques. Four studies reported positive effects on IYCF practices with mobile phone-based BCC delivery, but contexts and designs vary. Further research is needed. The incorporation of mobile phone technology in BCC interventions should be guided by formative research to match both the content and delivery approach to the local context.M.Sc
Strengthening family planning with community-based nutrition interventions in Ethiopia : a qualitative study / Daniel Sellen [u.a.]
Get PDFDispelling 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
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
Infant care, nutritional development and lactation in chimpanzees at Ngogo, Kibale National Park, Uganda
Get PDFUnderstanding the factors affecting the time from complete dependence on maternal milk to nutritional independence (i.e. infant nutritional development), and obtaining accurate data on the timing of infant feeding transitions are needed to ultimately understand species-specific life history components. I quantitatively documented infant nutritional development, assessed the patterning of maternal investment through lactation over the course of infancy, and investigated the effects of alloparenting on the speed with which infants were weaned, in approximately 50 infant chimpanzees (Pan troglodytes schweinfurthii) and their mothers of one wild community at Ngogo, Uganda. Measuring nutritional development in wild primates is difficult through observations alone because confirming dietary intake of infants is challenging. I therefore used behavioural data in combination with novel physiological measures of fecal stable isotopes (δ13C:δ15N, %N) to assess age-specific infant nursing and foraging, determine the relative contributions of maternal milk and other foods in infant diets, and assess the timing and process of weaning. First, I showed that fecal stable isotopes can be successfully used to track infant nutritional development, and found that the weaning process begins and ends by around 1 and 4 years of age, respectively, but that offspring could continue to comfort nurse for years afterwards. Second, I found that chimpanzees showed a multi-year and plateauing lactation pattern. Like humans, chimpanzee mothers provided a steady supply of milk while infants increasingly supplemented their growing energy needs with solid foods until the contribution of milk relative to other food in the diet was sufficiently low that milk no longer constituted a dietary need for offspring. Third, infants who were held and carried more by alloparents showed accelerated weaning rates, and their mothers experienced a reduced lactation effort, suggesting that alloparenting in chimpanzees may have a positive effect on female reproductive rates. This dissertation contributes to models of chimpanzee infant care, nutritional development, and patterning of lactation required to understand the evolution of life history patterns in hominins, including relatively earlier weaning and increased female reproductive rates.Ph.D
- …
