388 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
Some Comments on the Question Whether Co-occurrence Data Should Be Normalized
No full textIn a recent paper in the Journal of the American Society for Information Science and Technology, Leydesdorff and Vaughan assert that raw cocitation data should be analyzed directly, without first applying a normalization like the Pearson correlation. In this report, it is argued that there is nothing wrong with the widely adopted practice of normalizing cocitation data. One of the arguments put forward by Leydesdorff and Vaughan turns out to depend crucially on incorrect multidimensional scaling maps that are due to an error in the PROXSCAL program in SPSS.Multidimensional scaling;Author cocitation analysis;Co-occurrence data;Normalization;PROXSCAL;Pearson correlation
Some Comments on the Question Whether Co-Occurrence Data Should Be Normalized
No full textIn a recent article in JASIST, L. Leydesdorff and L. Vaughan (2006) asserted that raw cocitation data should be analyzed directly, without first applying a normalization such as the Pearson correlation. In this communication, it is argued that there is nothing wrong with the widely adopted practice of normalizing cocitation data. One of the arguments put forward by Leydesdorff and Vaughan turns out to depend crucially on incorrect multidimensional scaling maps that are due to an error in the PROXSCAL program in SPSS.multidimensional scaling;PROXSCAL;Pearson correlation;author cocitation analysis;co-occurrence data;normalization
Kinetics and mechanism of unimolecular decomposition of 3-methyl-1para-tolyltriazene
No full textPT: J; CR: ALBERT K, 1976, B CHEM SOC JPN, V49, P2537 CSERHEGYI A, 1971, MAGY KEM FOLY, V77, P607 CURCI R, 1973, SPECTROSC LETT, V6, P293 DAVIES GL, 1956, J CHEM SOC, P4397 DAVIES GL, 1972, COMPREHENSIVE CHEM K, V5, P582 ENGEL PS, 1980, CHEM REV, V80, P102 ISAACS NS, 1974, J CHEM SOC P2, P899 ISAACS NS, 1974, J CHEM SOC P2, P902 JONES CC, 1980, J CHEM SOC CHEM COMM, P322 KRYGER RG, 1977, J AM CHEM SOC, V99, P7589 PRYOR WA, 1970, J AM CHEM SOC, V92, P5403 SEEMAN JI, 1978, J ORG CHEM, V43, P1854 VAUGHAN K, 1977, J CHEM SOC P2, P17 VAUGHAN K, 1978, CHEM SOC REV, V7, P377; NR: 14; TC: 4; J9: CAN J CHEM; PG: 4; GA: LH023Source type: Electronic(1
On morphology, molecular composition and breakdown behaviour in semi-crystalline polymers
No full text
Fit before merit: exploring former McNair Scholars’ perceptions of faculty-student relationships
No full textThe Ronald E. McNair Scholars Postbaccalaureate Achievement Program is a federally funded program in the United States aimed at preparing underrepresented undergraduate students for graduate school. Within the program, which tends to have a meritocratic disposition, a mentorship component seeks to help students learn how to work with faculty members within the context of research. The central question of this exploratory study was how former McNair Scholars perceive the effectiveness of the mentorship component of the McNair program. This study is a student-centered and invites future studies about other perspectives within the McNair program, especially from faculty members and program staff. Based on eight interviews with former McNair Scholars in graduate school, in addition to complementary insights from my experience as a former McNair scholar and a previous participant observation study on current McNair Scholars’ work, a key finding is that the mentoring component struggled to address the tension between fit and merit within faculty-student relationships. This finding has implications for the future of the mentorship component of the McNair Program in addition to other the theorization of faculty-student relationships.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2019-08-01The student, Terry Vaughan, accepted the attached license on 2017-06-06 at 10:28.The student, Terry Vaughan, submitted this Dissertation for approval on 2017-06-06 at 10:47.This Dissertation was approved for publication on 2017-06-06 at 15:21.DSpace SAF Submission Ingestion Package generated from Vireo submission #11196 on 2017-09-29 at 11:13:27Made available in DSpace on 2017-09-29T16:39:05Z (GMT). No. of bitstreams: 2
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Previous issue date: 2017-06-06Embargo set by: Colleen Fallaw for item 103372
Lift date: 2019-09-29T16:39:52Z
Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemEmbargo set by: Colleen Fallaw for item 103372
Lift date: 2019-09-29T17:52:45Z
Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemLimited Restriction Lifted for Item 103372 on 2019-09-30T09:15:32Z
Diseases and insect pests of cane fruits in Oregon
No full textEdward K. Vaughan and R.G. Rosenstiel.This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
A collection of the works of that holy man and profound divine, Thomas Iackson ... [electronic resource] : containing his comments upon the Apostles Creed, &c. : with the life of the author and an index annexed.
No full textIncludes index.Added engraved t.p. has title: A collection of Dr. Jacksons works.Edited by Barnabas Oley; life of Jackson by Edmund Vaughan, v. 1."The eternal truth" (Wing J91) has special t.p., continuous paging.Errata at end.Imperfect: volumes 2 and 3 are lacking in the filmed copy.Reproduction of original in British Library.WingWingElectronic reproduction
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