177,861 research outputs found
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
Rolf O. Kroger and Linda A. Wood on faking
No full text... faking or response "distorsion" is a misleading concept because it implies that there is a "true" response that can be determined independently of the behavior of the test-taker. Because determining the true response is logically and empirically impossible, the concept of faking must be replaced by the concept of strategic action or the idea that the test-taker uses the test items to portray himself or herself as a certain kind of person on that occasion. (p. 1297) Kroger, R. O., & Wood, ..
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
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
An exploratory study of the relationship between a patient's educational level and the completion of advance directives, 1996
No full textThe overall objective of this study was to determine if there is a relationship between a patient's educational level and the completion of advance directives. To obtain this objective, the following areas were addressed by the researcher: (a) issues related to the education of patients (b) issues related to the completion of advance directives. The population consisted of 50 patients, male and female, ages ranging from twenty-five years to seventy-six plus years admitted to an acute care setting. Findings of the study indicate there is no significant relationship between a patient's educational level and the completion of advance directives
Letter from R. R. Zellick, Assistant Trust Officer, Anglo California National Bank of San Francisco, to Joseph R. Goodman, October 2, 1942
No full textLetter from R. R. Zellick, Assistant Trust Officer at The Anglo California National Bank of San Francisco, to Joseph R. Goodman, regarding property owned by Dave Tatsuno. Zellick mentions a dispute between current tenants and Tatsuno, and that Tatsuno has asked Goodman to help locate trustworthy tenants.Personal correspondence, organizational records, government documents, publications, and other papers created or collected by Joseph R. Goodman documenting the forced removal and incarceration of Japanese Americans during World War II, as well as organized resistance to incarceration. Included in the collection are records of the Japanese Young Men's Christian Association and the Japanese American Citizens' League in San Francisco, including papers of the Japanese YMCA's executive secretary Lincoln Kanai; Sakai family papers; Goodman's correspondence to and from Japanese American incarcerees, organizations opposing forced removal and incarceration of Japanese Americans, the War Relocation Authority, and others; publications, photographs, and ephemera from the Topaz Relocation Center, where Goodman taught high school; War Relocation Authority records and publications; and newspaper clippings, pamphlets, and reports about forced removal and incarceration created by various government, religious, and civic organizations, in California and nationwide
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
Liftings for noncomplete probability spaces
No full textThe current state of knowledge concerning liftings for noncomplete probability spaces is discussed. This is a somewhat expanded version of the author's talk given at the 1991 Summer Conference on General Topology and Applications in Honor of Mary Ellen Rudin and Her Work.PT: S; CR: BURKE MR, IN PRESS P AM MATH S BURKE MR, 1991, ISRAEL J MATH, V73, P33 BURKE MR, 1992, ISRAEL J MATH, V79, P289 CARLSON T, THEOREM LIFTING CHRISTENSEN JPR, 1974, TOPOLOGY BOREL STRUC FREMLIN DH, 1989, HDB BOOLEAN ALGEBRAS, P877 INOESCUTULCEA A, 1966, 5TH P BERK S MATH ST, V2 IONESCUTULCEA A, 1967, CONTRIBUTIONS PROB 1, P63 IONESCUTULCEA A, 1969, TOPICS THEORY LIFTIN JECH TJ, 1978, SET THEORY JOHNSON RA, 1980, P AM MATH SOC, V80, P234 JUST W, IN PRESS T AM MATH S KUPKA J, 1983, INDIANA U MATH J, V32, P717 LOSERT V, 1983, LNM, V1080, P95 MAHARAM D, 1958, P AM MATH SOC, V9, P987 SHELAH S, 1983, ISRAEL J MATH, V45, P90 TALAGRAND M, 1982, P AM MATH SOC, V84, P379 VONNEUMANN J, 1931, CRELLES J MATH, V165, P109; NR: 18; TC: 0; J9: ANN N Y ACAD SCI; PG: 4; GA: BZ86BSource type: Electronic(1
Flow distribution, pressure drop, flooding and entrainment in an air-cooled reflux steam condenser
No full textCITATION: Smit, L. v. Z. & Kroger, D. G. 2001. Flow distribution, pressure drop, flooding and entrainment in an air-cooled reflux steam condenser. R&D Journal, 17(3).Measurements on air-cooled reflux steam condensers or dephlegmators at different power plants have shown that sections of these units do not transfer heat effectively over a range of operating conditions. The ineffective areas may be due to flooding in the finned tubes although entrainment of the condensate in certain steam inlet manifolds is usually the main reason for the poor performance. Laboratory experiments were conducted to show under which conditions entrainment occurs, as well as the pressure drop and flow characteristics for different types of inlet headers or manifolds. A practical and cost effective solution is proposed to eliminate the reduction in dephlegmator performance due to entrainment in a particular manifold.Publisher's versio
Cooling tower performance : a critical evaluation of the Merkel assumptions
No full textCITATION: Kloppers, J. C. & Kroger, D. G. 2004. Cooling tower performance : a critical evaluation of the Merkel assumptions. R&D Journal, 20(1):24-29.The original publication is available at https://www.saimeche.org.za/page/RDJournalThe simpltfying assamptions made by Merkel ure
critically evaluated by comparing the Merkel analysis
to the more rigoroas Poppe analysis of cooling
tower performnnce. It is shown that the uccaracy of
the Merkel method can be greatly improved, under
certain cooling tower operating conditions, to predict
cooling tower performance within very close
tolerance of the performance predicted by the Poppe
method, It is shown under which tower operating
conditions the thermal tower performance, according
to the Merkel method, is likely to diffe, from
the performance predicted by the Poppe method.Publisher's versio
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