126,286 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
Subjective health complaints in adolescence: a cross-national comparison of prevalence and dimensionality
No full textBackground. The purpose of this work was to study the prevalence and dimensionality of subjective health complaints in a cross-national population of adolescents.Method. The analyses were based on data from a WHO cross-national survey, Health Behaviour in School-aged Children (HBSC). The study included a representative sample of 11, 13 and 15-year-old adolescents from Finland, Norway, Poland and Scotland. Data were collected in 1993-1994 and the total sample included 20,324 adolescents. Subjective health complaints were measured by the HBSC Symptom Checklist (HBSC-SCL), including headaches, abdominal pain, backache, feeling low, irritability, nervousness, sleeping difficulties and dizziness. Descriptive analyses, MANOVA and structural equation modelling (EQS) were conducted.Results. Patterns of reporting were consistent for all four countries. A large number of students reported a high level of symptoms. The reporting of most symptoms increased with age. Girls reported significantly more symptoms than boys and the gender differences also increased with age. Structural equation modelling suggests a model of two correlated factors, which can be labelled psychological and somatic.Conclusion. The findings of this study indicate that students report a high level of subjective health complaints already at the age of 11 years. The reporting of most symptoms increases with age and more so for girls than for boys. The finding of two dimensions that differ qualitatively, suggests that these dimensions may have different etiologies
The Anomalies Of The Wold-Juréen (1953) Functional Form In Overview
No full textBoth the Wold-Juréen (1953) utility function and the Wold-Juréen (1953) production function have played a central role in the modelling and the analysis of the Giffen behavior. Using an amalgam of these two functions, this paper defines the Wold-Juréen (1953) functional form, and then compares its properties to the properties of the arbitrary functional form, in an effort to provide a global perspective on the unique nature of the Wold-Juréen (1953) functional form. This paper then reports: (a) that the domain of the Wold-Juréen (1953) functional form (or the first functional form) is a subset of the domain of the arbitrary functional form (or the second functional form), (b) that the signs of the second derivatives of the Wold-Juréen (1953) functional form (or the first functional form) are the opposite of the signs of the second derivatives of the arbitrary functional form (or the second functional form), and (c) that (within the context of the unconstrained-maximization problem) the Wold-Juréen (1953) functional form (or the first functional form) is not concave, whereas the arbitrary functional form (or the second functional form) is concave
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
The use of orthogonal signal correction to improve NIR readings of pulp fibre properties
No full textIn 1999 Tembec Industries and the National Renewal Energy Laboratories worked together in developing a methodology to use Near-infrared (NIR). Technology of in-house pulp fibre quality properties Q99 and Q97. The initial results with dry samples of pulp were encouraging. the wet samples results were initially disappointing using the standard chemometric techniques. Svante Wold developed a new chemometric method called Orthogonal Signal correction (OSC), which was used to obtain a good correction of Q99 in the wet pulp samples.</p
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
A remark concerning uniqueness of the Wold decomposition of finite-dimensional stationary processes.
No full textsummary:The uniqueness of the Wold decomposition of a finite-dimensional stationary process without assumption of full rank stationary process and the Lebesgue decomposition of its spectral measure is easily obtained
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
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