125,045 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
Associação genômica ampla para resistência a bacteriose em germoplasma de pessegueiro com base em SNPs.
No full textTese (Doutorado em Agronomia - Fitomelhoramento) - Programa de Pós-Graduação em Agronomia. Universidade Federal de Pelotas, Pelotas, 2018. Orientador: Caroline Marques Castro; Co-orientador: Maria do Carmo Bassols Raseira; Sandro Bonow
Global Neoproterozoic petroleum systems: The emerging potential in North Africa
No full textThe Neoproterozoic Eon is relatively poorly known from a petroleum perspective, despite the existence of producing, proven and potential plays in many parts of the world. In tectonic, climatic and petroleum systems terms, the Neoproterozoic to Early Cambrian period can be divided into three distinct phases: a Tonian to Early Cryogenian phase, prior to about 750 Ma, dominated by the formation, stabilization and initial break-up of the supercontinent of Rodinia; a mid Cryogenian to Early Ediacaran phase (c. 750-600Ma) including the major global-scale 'Sturtian' and 'Marinoan' glaciations and a mid Ediacaran to Early Cambrian (c. post 600Ma) phase corresponding with the formation and stabilization of the Gondwana Supercontinent. There is increasing evidence that deposition of many mid to late Neoproterozoic (to Early Palaeozoic) organic-rich units was triggered by strong post-glacial sea level rise on a global scale, following the 'Snowball Earth' type glaciations, coupled with basin development and rifting on a more local scale. Fieldwork in North Africa including the Taoudenni Basin in Mauritania, Algeria and Mali; the Anti-Atlas region of Morocco and the Cyrenaica, Kufra and Murzuk basins in Libya has added to the understanding of reservoir, source and seal relationships and confirmed the widespread presence of Precambrian stromatolitic carbonate units of potential reservoir facies. Current research on the chronostratigraphy, distribution and quality of source rocks, controls on reservoir quality and distribution of seals in the Precambrian-Early Cambrian hydrocarbon plays through-out South America, North Africa, the Middle East and the Indian Subcontinent is documented in this Special Publication. © The Geological Society of London 2009
THE TEXAS RICE INDUSTRY COALITION FOR THE ENVIRONMENT (R.I.C.E.): MAIN POINTS FROM SIX FOCUS GROUPS
No full textThe Texas Rice Industry Coalition for the Environment (R.I.C.E.) was formed in February, 1995. Their stated mission is to build a coalition of interests to foster and strengthen relationships between the rice industry and the natural resources of our rice-producing area in Texas. In June, 1995, a series of six focus groups was conducted. These round table discussions involved two groups of producers (from the East Side and West Side of Houston), two groups of environmentalists in the Houston area, and two groups of non-farming Houstonians (adults and children). These focus groups were structured to elicit opinions from various viewpoints concerning the opportunities, challenges, and priorities of Texas R.I.C.E. The goal of the two producers focus groups conducted on the East Side and the West Side of Houston was to determine whether Texas R.I.C.E.'s activities were widely known and to ascertain producers' viewpoints on the coalition's priorities. Producers were agreed on their key concerns regarding compliance with environmental policy - they face a cost-price squeeze and therefore one-size-fits-all regulations are particularly burdensome. Water quality and quantity were most often mentioned as key factors in the continued viability of the rice industry in Texas. Producers recognize the natural synergy between rice production and waterfowl habitat enhancement, yet they are concerned because waterfowl habitat places increased demands on scarce water. Rice producers are concerned about the public being largely ignorant and uninterested in the environmental benefits of rice production, and they endorsed two-way education between rice producers and environmentalists. No clear consensus emerged in the focus group discussions about the role for Texas R.I.C.E. in lobbying. Some rice producers see education and lobbying as conflicting activities and would prefer for Texas R.I.C.E. to focus on education. Others were positive about collaborative opportunities between rice producers' lobbyists and environmental interest groups' lobbyists. The two environmental focus groups were a mix of bird-watchers, hunters, hikers and conservationists. These environmentalists had a good idea of where rice is grown in Texas and knew that rice production is declining in the state. Their major concerns about the environmental effects from rice production were water usage and water quality, agri-chemical runoff, food and habitat for migratory birds, and trade-offs concerning wetlands. In sum, they appreciated that rice production makes a positive contribution to waterfowl habitat. They were concerned that lost Texas rice acreage will be replaced with urban land uses, thus reducing wildlife habitat benefits. They viewed rice production as being environmentally friendly compared with other types of agricultural production, such as cotton farming. They were favorably impressed that rice producers were taking the initiative to form a coalition. They were anxious to work collaboratively and offered several concrete suggestions about forums and issues for educational campaigns. They suggested that consumptive and non-consumptive users of wildlife habitat (such as hunters and bird-watchers, respectively) should compensate private landowners for allowing access. They acknowledged problems with adversarial attitudes going both ways between environmentalists and rice producers; they brainstormed about how Texas R.I.C.E. could help break down barriers. The general public adult focus group, comprised of non-farming Houstonians, established a general interest and awareness concerning rice production. However, the Houstonians participating in this focus group were uninformed about the waterfowl habitat benefits associated with rice production. They offered positive endorsement of the Texas R.I.C.E. effort and expressed sincere (and specific) interests in educational programming. The general public children focus group included several children from the Clear Lake area south of Houston. These children exhibited a natural inquisitiveness and concern regarding the environment and food safety. They were largely ignorant of commercial agriculture, excepting several recollections of "visits to relatives' farms." They expressed considerable interest in more agricultural-related curriculum being incorporated into their science and/or social studies curricula.Environmental Economics and Policy,
Pragmatic Case Studies as a Source of Unity in Applied Psychology
No full textTo unify or not to unify applied psychology: that is the question. In this article we review pendulum swings in the historical efforts to answer this question—from a comprehensive, positivist, “top-down,” deductive yes between the 1930s and the early 60s, to a postmodern no since then. A rationale and proposal for a limited, “bottom-up,” inductive yes in applied psychology is then presented, employing a case-based paradigm that integrates both positivist and postmodern themes and components. This paradigm is labeled “pragmatic psychology” and, its specific use of case studies, the “Pragmatic Case Study Method” (“PCS Method”). We call for the creation of peer-reviewed journal-databases of pragmatic case studies as a foundational source of unifying applied knowledge in our discipline. As one example, the potential of the PCS Method for unifying different angles of theoretical regard is illustrated in an area of applied psychology, psychotherapy, via the case of Mrs. B. The article then turns to the broader historical and epistemological arguments for the unifying nature of the PCS Method in both applied and basic psychology.Peer reviewe
Dr. Edwin Wright Collection: Author Unknown
No full textNotes - The author relates several short stories about his neighbours including Alex McDonell, homesteading and life around Meanook and Athabasca (1 page
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
Measurement of the ratio of branching fractions B(B0→K∗0γ )/B(B0s→φγ ) and the directCP asymmetry inB 0→K∗0γ
No full textThe ratio of branching fractions of the radiative B decays B0→K⁎0γ and B0s→ϕγ has been measured using an integrated luminosity of 1.0 fb−1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of s√=7TeV. The value obtained is
B(B0→K⁎0γ)B(B0s→ϕγ)=1.23±0.06(stat.)±0.04(syst.)±0.10(fs/fd),
where the first uncertainty is statistical, the second is the experimental systematic uncertainty and the third is associated with the ratio of fragmentation fractions fs/fd. Using the world average value for B(B0→K⁎0γ), the branching fraction B(B0s→ϕγ) is measured to be (3.5±0.4)×10−5.
The direct CP asymmetry in B0→K⁎0γ decays has also been measured with the same data and found to be
ACP(B0→K⁎0γ)=(0.8±1.7(stat.)±0.9(syst.))%.
Both measurements are the most precise to date and are in agreement with the previous experimental results and theoretical expectations
The construction of Karen Karnak: The multi-author-function
No full textThis thesis is situated within the comparatively recent developments of Web 2.0 and the emergence of interactive WikiMedia, and explores the mode of authorship within a Read/Write culture compared to that of a Read/Only tradition. The hypothesis of this study is that the role of the audience has become merged with the author, and as such, represents new functions and attributes, distinct from a more conventional concept of authorship, in which the roles of audience and author are more separate. Read/Write and participatory culture, as defined by this study, is focused on collaboration, and includes the influences of D.I.Y. culture, Open-Source practices and the production of text by multiple authors. Multi-authorship presents a re-thinking of several concepts which support the notion of the individual author, since the focus of multi-authorship is not on attribution and ownership of a finished text, but on the continued malleability of a text. Modes of multi-authorship, demonstrated in the use of the pseudonyms Alan Smithee and Karen Eliot, represent declarative authors whose names signify multiple origins, whilst concurrently indicating a distinct body of work. The function of these names form an important context to this study, since primary research involves the construction of an experimental mode of multi-authorship utilising WikiMedia technology and the interaction of thirty nine participants, who are invited to create a body of work under the collective pseudonym Karen Karnak. The data generated by this experiment is analysed using aspects of Michel Foucault's author-function to identify and determine power structures inherent in the WikiMedia context. The interplay of power structures, including concepts such as identity, ownership and the body of work, affect the resulting mode of authorship and contribute to the construction of Karen Karnak, suggesting further areas of research into the emerging multi-author
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