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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
Breeding strategies and scope of improvement in arid zone fruit crop-plants under abiotic stressed agro-climate: an analysis
Get PDFDry-land horticulture has immense potential in providing nutrition, social security and eco-restoration for the inhabitants of desert or rainfed and tribal land-areas of hot arid and semi-arid regions of the country. Realizing the importance and visionary support, Indian Council of Agricultural Research (ICAR) had prioritized research with few fruits in 1976 and then AICRP on arid zone fruits was started from 1978 with crop based centers in hot–spot region and this strengthen resulted to giving rise of Central Institute for Arid Horticulture in 1993 as national concern for conservation and use of arid crop-plant diversity and their promotion for horticultural exploitation. During 1985, commercial capacity of ber, pomegranate, aonla, bael, tamarind and custard apple was renowned. Indian sub-continent is one of recognized centre of origin or secondary areas of regional diversity for number of fruit crop-plant which are of native to arid and tribal areas, and not much attended for their potentiality i.e. ber, bordi, jharber, khejri, ker, lasora, gundi, pilu, phalsa, daasra, karonda, aonla, bael, wood apple, custard apple, tamarind, jamun, tendu, chironji, mahua, khirni, Palmyra palm, Indian dates, mulberry, fig and sehjan etc. There is ample scope for these drought tolerant and low input requiring crop-plant and for this there is rich reserve of considerable genetic variability is exists in species from Thar desert and tribal areas of the north-western India, which can yield fruits for fresh consumption, products of horticultural and nutraceutical values. Thus, their systematic exploitation and commercialization can not only provide food security but also ensure economic stability in rural masses in vast arid and semi-arid and/or tribal dominating sub-humid areas
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
Mateera, watermelon (Citrullus lanatus) germplasm utilization for improving fruit quality and marketable harvest under hot arid climate of India: approaches and out-put
No full textCucurbits, a big group of vegetable cultivated extensively in India. It consist wide-range of crops used in culinary, salad, dessert, pickling and processing. Indigenous cucurbits both fresh and dehydrated form ensuring nutritious food to inhabitants of tribal and desert areas. Kachri, kaakdia, mateera, tinda and tumba is grown under rainfed situations and its cultivation is admired with the traditional farming in north-western parts of Rajasthan. Mateera is under-utilized, drought tolerant and native form of watermelon. Its nutrition rich tender and ripen fruits and seed-kernel liked by desert dwellers and sold at high premium. For developing drought and heat tolerant genotypes in mateera, ICAR-CIAH initiated first-time intensive research and wide range of Citrullus germplasm collected, conserved and utilized in crop improvement work from 1994 to 2012. In past, absence of standard varieties in drought tolerant mateera, the arid zone farmers obliged to use heterozygous seed collected from fruits (based on taste) of own fields. This obviously results poor and no-insured quality. On evaluation of the Citrullus germplasm (254 entries) at Bikaner, watermelon genotypes failed to express their potentialities under high temperature and rainfed conditions. Therefore, use of indigenous and generated variability, and promotion of varieties from native germplasm is found to be beneficial.
Mateera line AHW-18, AHW-19, AHW-65, AHW-108, AHW-140, AHW-RSS-1 and AHW-BSM-1 are promising for use in breeding or trait-specific selections. The developed mateera varieties i.e. AHW-19 and Thar Manak are early in harvesting, producing better quality fruits and multiple-use, and recommended for cultivation under resource constraints hot arid environment
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
Scope and strategies for genetic improvement in vegetable crop-plants under high temperature and abiotic stressed climate of Rajasthan: A gap analysis
Get PDFUn-exploited, under-scored and native crop-plants of horticultural significance have enormous potential in providing nutrition rich food and social security to inhabitants of desert and tribal areas of the north-western India. While conducting surveys and explorations for horticultural perspective, and examining distinctness of hot arid, semi-arid and sub-humid climate of Rajasthan from 1994 – 2004, it was concluded that un-availability of apposite crop–genotypes and production techniques are two major constraints which limiting dry-land vegetable promotion. Traditionally, kachri, kakadia, mateera, tinda and guar-phali ensuring native vegetable produce, besides, khejri (Prosopis cineraria) is playing vital role in long-established mixed farming systems of arid farm-lands. In addition, native land-races of kakri, kheera, kundru, kakoda, cowpea, sem-phali and okra are monsoon supported vegetable harvest in the semi-arid and tribal areas of state. Establishment of NRCAH during 1993 at Bikaner supported systematic research on collection, characterization and conservation of native vegetable crop-plants as regional diversity, and further work was intensified on germplasm utilization in particular for high temperature and abiotic stresses tolerant breeding. The crop-genotype studies over 45 vegetables at CIAH demonstrated that there is magnificent scope in obtaining higher marketable and quality yields, provided better and trait-specific genotypes and production site management (HBCPSMA) as integrated concept for vegetable cultivation under hot arid environment. Thus, conserving germplasm, developing genotypes and newer technological advancement in arid vegetables is an advantage towards better nutrition and farmer’s income under dry-land conditions
Snap melon (a non-dessert form of Cucumis melo) germplasm variability and utilization for varietal development under hot arid climate: An output analysis
No full textThe significance of genetic diversity is widely accepted for making rapid crop improvement, and therefore, by utilizing the regional variability, we can develop genotypes of greater economic value and cultivation under the defined environmental situations. Kaakdia, phoot or snap melon (a non–dessert form of Cucumis melo var. momordica) is a much-relished cucurbit of rural India. The mature and ripe fruits are used extensively for vegetable culinary and garnishing salad. Still, it is underutilized and grown mixed or self-sown crop of traditional farming systems. Vine plants are short-duration (95-125 days) and bear variable-sized fruits (0.182–3.258 kg) that are edible at maturity, specific in taste with ripening and cracks. Semi-domesticated landraces and local cultivars of Cucumis melons diversity is found in abundance under the dry-land conditions of north-western parts of India. This culti-group is highly cross-pollinated and the lack of standard genotypes in snap melon resulted in mixed quality fruits and thus, low market preferences. Intensive surveys and explorations were conducted in the diverse climatic areas of Rajasthan from the year 1994 to 2001, and about 125 accessions of kaakdia type germplasm were collected. The germplasm was evaluated repeatedly, and purified, characterized, and utilized over the period (1994 to 2012) for the crop improvement work at Bikaner. The short-listed genotypes (65) were categorized based on plant growth and size, shape, quality, and utility of fruits, and maintained for conservation of the native diversity. Based on horticultural traits, genotypes AHS-6, AHS-8, AHS-10, AHS-14, AHS-19, AHS-23, AHS-42, AHS-46, AHS-50, AHS-53, AHS-54, AHS-56, AHS-57, AHS-63, AHS-64, AHS-70, AHS-81, AHS-82, DPY-216, and DKS/AHS/2011-2 were found to be potential. With a strategic work-plan, excellent fruit quality, early harvesting (67–70 DAS), high yielding (222–241 q/ha), and abiotic stress-tolerating genotypes, viz., AHS-10 and AHS-82, were developed for summer and rainy season crop cultivation. Now, ICAR-CIAH is first in the standardization of snap melon technology and recommended for harvesting of uniform quality fruits (0.876–0.942 kg weight) and fresh market availability from March to November with the defined production practices. In addition, commercial cultivation of the variety Thar Mahak (AHS-82) is beneficial and cost-efficient to the growers as climate climate-resilient crop-commodity and horti-preneurship
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
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