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Uranium Mining on the Colorado Plateau I.C. 7726
No full textUranium Mining on the Colorado Plateau I.C. 7726 (Sept. 1955)Documents in the AZGS Document Repository collection are made available by the Arizona Geological Survey (AZGS) and the University Libraries at the University of Arizona. For more information about items in this collection, please contact [email protected]
Retained placenta in Friesian mares: reproductive performance after foal heat breeding versus breeding in a subsequent heat
No full textPostpartum reproductive performance was studied in 54 Friesian brood mares with and 50 without retained placenta. Retained placenta was defined as failure to expel all fetal membranes within 3 hours after the delivery of the foal. The group of mares with retained placenta was subdivided into mares in which the placenta had been removed manually (n=30) and mares in which it was not (n=24). Within each group, reproductive performance after breeding in the foal heat and breeding in a subsequent heat was compared. Age of the mares, number of mares treated with antibiotics after insemination, and number of mares treated with prostaglandins were recorded. The interval between delivery and conception, efficacy rate, seasonal pregnancy rate, pregnancy rate after first insemination, pregnancy loss rate, and foaling rate did not differ between the mares with and without retained placenta or between the mares with and without manual removal of the retained placenta. Within each group, the pregnancy rate after first insemination did not differ between breeding for the first time in the foal heat and breeding for the first time in a subsequent heat. It is concluded that reproductive performance did not differ between (1) Friesian mares with and without retained placenta and, (2) Friesian mares with and without manual removal of the placenta. With regard to reproductive performance, retained placenta and manual removal of the placenta are not valid reasons to avoid foal heat breeding in Friesian mares..CF: 3rd International Conference on Equine Reproductive Medicine, Leipzig, Germany, 27-28 October 2001.; RE: 23 ref.; SC: 0V; 0A; 0I; ZA; VE; CA; BESource type: Electronic(1) http://upei-resolver.asin-risa.ca?sid=SP:CABI&id=pmid:&id=&issn=0177-7726&isbn=&volume=17&issue=6&spage=633&pages=633-638&date=2001&title=Pferdeheilkunde%20&atitle=Retained%20placenta%20in%20Friesian%20mares%3a%20reproductive%20performance%20after%20foal%20heat%20breeding%20versus%20breeding%20in%20a%20subsequent%20heat.&aulast=Sevinga&pid=%3Cauthor%3ESevinga%2c%20M%3bBarkema%2c%20H%20W%3bHesselink%2c%20J%20W%3C%2Fauthor%3E%3CAN%3E20013159265%3C%2FAN%3E%3CDT%3EJournal%20article%3bConference%20paper%3C%2FDT%3
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
Retained placenta in Friesian mares: incidence, risk factors, therapy, and consequences
No full textThis study concerns incidence, risk factors, therapy and consequences of retained placenta after normal foalings in Friesian mares. Retained placenta was defined as failure to expel all fetal membranes within 3 hours after the delivery of the foal. Incidence of retained placenta was studied in 495 parturitions. As possible risk factors for retained placenta, serum calcium, magnesium (n=155), and vitamin-E concentrations, and glutathion peroxidase activity in blood (n=99) were determined within 12 hours post partum and compared between mares with and without retained placenta. Age of the mare, sex of the foal, gestational length and recurrence of retained placenta were recorded and also compared between mares with and without retained placenta. As therapy, the relative effectiveness of intra venous administration of oxytocin in saline solution (n=59) and of oxytocin in a Ca-Mg-borogluconate solution (n=53) was studied. Parameters for post partum reproductive performance were compared between mares with (n=54) and without retained placenta (n=50), and within the group of mares with retained placenta, of mares from which the fetal membranes had been removed manually (n=30) and from which it was not (n=24). Incidence of retained placenta in Friesian mares was 54%. Mares which retained the placenta had lower serum calcium concentrations within 12 hours post partum than mares without retained placenta (P<0.05), whereas mean serum magnesium and vitamin-E concentrations, and glutathion peroxidase activity in blood showed no difference. Age of the mare, sex of the foal and gestational length were not different between mares with and without retained placenta. Mares which had retained the placenta after previous foalings, had a 2.9-fold increase of retained placenta. Sixty four percent of the mares treated with oxytocin in Ca-Mg-borogluconate solution responded positively to the treatment, compared to 44% of the mares treated with oxytocin in saline solution (P<0.05). Post partum reproductive performance did not differ between mares with and without retained placenta, and of the mares with retained placenta, between mares with and without manual removal of the placenta..CF: 3rd International Conference on Equine Reproductive Medicine, Leipzig, Germany, 27-28 October 2001.; RE: 17 ref.; RN: 7440-70-2; 70-18-8; 7439-95-4; 50-56-6; 1406-18-4; SC: 0V; 0A; 0I; ZA; VE; CA; BESource type: Electronic(1) http://upei-resolver.asin-risa.ca?sid=SP:CABI&id=pmid:&id=&issn=0177-7726&isbn=&volume=17&issue=6&spage=619&pages=619-622&date=2001&title=Pferdeheilkunde%20&atitle=Retained%20placenta%20in%20Friesian%20mares%3a%20incidence%2c%20risk%20factors%2c%20therapy%2c%20and%20consequences.&aulast=Sevinga&pid=%3Cauthor%3ESevinga%2c%20M%3bBarkema%2c%20H%20W%3bHesselink%2c%20J%20W%3C%2Fauthor%3E%3CAN%3E20013159262%3C%2FAN%3E%3CDT%3EJournal%20article%3bConference%20paper%3C%2FDT%3
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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