1,721,315 research outputs found
Biography: Purnima Menon
No full textBiography of
Purnima Menon,
Research Associate,
Division of Nutritional Science
Virtual Event - COVID-19: Implications for Global and Country-Level Food Security, Nutrition, and Poverty
No full textJohan Swinnen, David Laborde Debucquet, Xiaobo Zhang, Purnima Menon, and James Thurlow POLICY SEMINAR Virtual Event - COVID-19: Implications for Global and Country-Level Food Security, Nutrition, and Poverty APR 14, 2020 - 12:15 PM TO 01:15 PM ED
Insights on improving nutrition practices in Bangladesh, Vietnam and Ethiopia
No full textPurnima Menon IFPRI and Alive & Thrive Policy Seminar Taking It to Scale: Insights from IFPRI’s Research on Improving Nutrition Behaviors in Multiple Contexts June 28, 2017 - 12:15 PM TO 01:45 PM ED
No Magic Bullets: Insights on Drivers of Stunting Decline from an Analysis of Subnational Success Cases in India
No full textRasmi Avula, Phuong Nguyen, Purnima Menon POLICY SEMINAR Tackling child undernutrition at scale: Insights from national and subnational success cases Co-Organized by IFPRI and Exemplars in Global Health APR 1, 2021 - 09:30 AM TO 11:00 AM ED
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
Determinants of inappropriate complementary feeding practices in infant and young children in Bangladesh: Secondary data analysis of Demographic Health Survey 2007
No full textSuboptimal and inappropriate complementary feeding practices are one of the major causes of child undernutrition in the first 2 years of life in South Asian countries including Bangladesh. The aim of this study was to use the newly developed World Health Organization infant feeding indicators to identify the potential risk factors associated with inappropriate complementary feeding practices. We used data for 1728 children aged 6-23 months obtained from nationally representative data from the 2007 Bangladesh Demographic and Health Survey to assess the association between complementary feeding and other characteristics using multivariate models. Only 71% of infants were consuming soft, semi-solid and solid food by 6-8 months of age. In the multivariate analysis, mothers who had no education had a higher risk for not introducing timely complementary feeds [adjusted odds ratio (AOR)=2.14; 95% confidence interval (CI): 1.08-4.23, P=0.03], not meeting the minimum dietary diversity (AOR=1.69; 95% CI: 1.14-2.54, P=0.01), minimum acceptable diet (AOR=1.70, 95% CI: 1.09-2.67, P=0.02) and minimum meal frequency (AOR=1.73; 95% CI: 1.20-2.49, P=0.003) than the mothers who had secondary or higher education. Infants born in Sylhet, Chittagong and Barisal division had higher risks for not meeting minimum dietary diversity, meal frequency and acceptable diet (
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
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