1,721,120 research outputs found
Experiences With and Preferences for Drip Irrigation Systems in Punjab, Pakistan
No full textThe data in this study were collected to assess preferences with respect to drip irrigation systems, which was promoted under Punjab Irrigated-Agriculture Productivity Improvement Project (PIPIP) in Pakistan. The survey was conducted among 475 households across four districts (Attok, Chakwal, Layyah, and Sahiwal) in the Punjab province of Pakistan. These districts capture contrasting agroecological zones as well as contrasting agricultural systems. The survey was designed primarily to capture differential preferences along a gradient of drip irrigation experience and exposure. In addition, the survey collects household information such as education, farm holdings, cropping systems, and patterns.IFPRI1; CRP2; Open Access;EPTD;CGIAR Research Program on Policies, Institutions, and Markets (PIM)
Homicide-suicide cases during the COVID-19 lockdown in Pakistan: content analysis of newspaper reports
No full text
Adsorption of Brilliant Green dye from aqueous solution onto red clay
No full textThis study was aimed at the adsorption of Brilliant Green (SG) dye on naturally existing red clay (RC) through batch adsorption experiment. Adsorbent characterization showed Brunauer-Emmett-Teller surface area 100.28 m(2)/g, pore volume 0.88 cm(3)/g, and pore diameter 148.2 angstrom. Batch studies were carried out to investigate the effect of experimental factors such as pH (2-10), particle size (58-150 mu m), adsorbent dose (0.3-1.5 g/L), contact time (5-1500 min), initial dye concentration (20-100 mg/L), and temperature (25-65 degrees C) on the adsorption of BG dye. Langmuir (R-2 = 0.993), Freundlich (R-2 = 0.997), Hansley (R-2 = 0.997) and Redlich-Peterson (R-2 = 0.999) isotherms were fitted to describe the equilibrium of BG adsorption process. Isothermal models showed that BG adsorption was a favorable process on RC. Adsorption kinetics were well fitted by Pseudo-second order kinetic model (R-2 = 0.999). Thermodynamic study revealed that BG adsorption on RC was spontaneous, favorable and physiosorptive. The maximum adsorption capacity of RC was found to be 125 mg/g. These results showed that BG dye can be effectively removed from aqueous solution employing RC as a cheap adsorbent. (C) 2013 Elsevier B.V. All rights reserved
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
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