1,720,975 research outputs found
Book Reviews
No full textBook 1Book Title: A Matter of Choice. Abortion Law Reform in Apartheid South AfricaBook Author: June CopePp. ix + 176. R45,99. Pietermaritzburg: University of Natal Press. 1993. ISBN 0-86980-887-7.Book 2Book Title: Laparoscopic Hysterectomy and Oophorectomy. A Practical Manual and Colour AtlasBook Author: Jeffrey H. PhippsPp. 78. Illustrated. Edinburgh: Churchill-Livingstone. ISBN 0-443-04929-7
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
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
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
Infertility: An update for the family practitioner
No full textThe incidence of infertility is approximately 15–20% (one in every five to six couples). The investigation of the infertile couple begins with a careful history, followed by a physical examination. If any abnormality is observed in the history, the couple must be referred. The principle of evaluation of the infertile couple is to establish if the female is ovulatory or anovulatory. If ovulatory, the couple must be referred for more detailed examinations. If anovulatory and her prolactin and TSH as well as his semen analysis are normal, ovulation induction with a low dose of clomiphene citrate can be offered. On the other hand, if her prolactin and TSH as well as his semen analysis are abnormal, it is best to refer the patient
Artificial intrauterine insemination with washed prepared spermatozoa of the husband
No full textCITATION: De Villiers, T.J., Kruger, T.F., Van der Merwe, J.P. & Menkveld, R. 1987. Kunsmatige intraiiteriene inseminasie met gewaste voorbereide eggenootsemen. S Afr Med J, 72(10):488-489.The original publication is available at http://www.samj.org.zaENGLISH ABSTRACT: Intra-uterine insemination with washed spermatozoa of the husband was evaluated in 42 infertile couples during 103 treatment cycles. A pregnancy rate of 47.3% was obtained after an average of 2 treatment cycles in a group of patients in whom hostile cervical mucus was the only known cause of infertility. A pregnancy rate of 21.7% was obtained after an average of 2.6 treatment cycles in a group of patients in whom low sperm morphology was the only known cause of infertility. The overall conception rate of 33.3% compares favourably with that in other published series.Publisher’s versio
How do the features of experiments influence the experience of first year physics students?
No full textPlease help us populate SUNScholar with the post print version of this article. It can be e-mailed to: [email protected] (Mil.
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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