117,576 research outputs found
Typed Letter, Signed, 1965 Jan 27
No full textMrs. Myrtle L. Blecha to Mrs. H.W. Vollmer, 1965 Jan 27, TLS, 1 pp. -- Mrs. Blecha, from the Denver-East Seventh Day Adventist Church, writes Mrs. Vollmer explaining that she will be teaching a cooking school soon and would like some professional advice. She has taught some cooking schools in the past, but this time she would like to use some more current and up to date material. She hopes Mrs. Vollmer could help her in getting some of the new material, or at least direct her to someone who could
Antimicrobial peptides and bacteriocins: alternatives to traditional antibiotics
No full textAntimicrobial peptides (AMPs) are ubiquitous, gene-encoded natural antibiotics that have gained recent attention in the search for new antimicrobials to combat infectious disease. In multicellular organisms, AMPs, such as defensins and cathelicidins, provide a coordinated protective response against infection and are a principal component of innate immunity in vertebrates. In unicellular organisms, AMPs, such as bacteriocins, function to suppress competitor species. Because many AMPs kill bacteria by disruption of membrane integrity and are thus thought to be less likely to induce resistance, AMPs are being extensively evaluated as novel antimicrobial drugs. This review summarizes and discusses the antibiotic properties of AMPs highlighting their potential as alternatives to conventional antibiotics
Growth performance of pigs infested with sarcoptic mange
No full textTwo trials were conducted to determine the effect of sarcoptic mange on growth performance of pigs. Results from previous experiments with weaned pigs artificially infested with sarcoptic mites indicated no alteration of growth performance (average daily gain, average daily feed intake, and feed efficiency) in infested pigs. Two trials were conducted to further evaluate the effect of sarcoptic mange on pig growth performance. The first trial used 36, 90-lb pigs artificially infested twice or once with sarcoptic mites. Twice-infested pigs had
higher average daily gain and improved feed efficiency 6 weeks after infestation than non-infested pigs. No alterations of growth performance were observed during the final 4 weeks of the trial. The second trial used 36, 30-lb pigs infested twice with sarcoptic mites (but mange was not as severe as in the first trial), No differences in growth performance were noticed during the 4-week observation period. These results suggest that, at some levels of infestation, sarcoptic mange does not affect pig growth performance
Failure of precalving supplementation of vitamin E and dietary fat to alter reproductive performance of first lactation cows or the health of their calves
No full textA study was conducted to determine the
effect of precalving supplementation with
vitamin E and fat on the reproductive performance
of first lactation cows and the health of
their calves. Approximately 50 days before the
first expected calving, 48 crossbred heifers were
allotted to four treatments: 1) basal diet that
consisted of 13 lb of prairie hay, 7.3 lb of milo,
and 1 lb of supplement per heifer per day; 2)
basal diet+supplement bringing the diet to 4%
fat; 3) basal diet+supplement providing 1000 IU
supplemental vitamin E/day; and 4) basal diet
plus both fat and vitamin E. Supplementation
of vitamin E and(or) fat had no effect on any
reproductive trait in the cows or any immunological
measurement in the calves
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
Square Dancing with the Stars to Enhance Dynamic Hirschman Linkages?
No full textIn this Presidential Address, the author takes the reader on a reconnaissance of his life and time as a regional scientist. He points out scenery he found scintillating along the way, hoping that some may pick up the banner and chew on a few of the ideas for a while. He suggests a revisit to Albert O. Hirschman’s notion of key sectors and more empirical analysis related to Marcus Berliant’s and Masahisa Fujita’s notion of knowledge creation and transfer.Presidential Address, San Antonio, Texas, March 29, 2014 (53rd Meetings of the Southern Regional Science Association
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
The effect of vitamin E, selenium, and copper supplementation preweaning on the performance and immune response of beef calves
No full textTwo experiments were conducted to
determine the effect of vitamin E, selenium, and
copper supplementation on the pre- and
postweaning performance, immune responses,
and serum metabolites o f crossbred beef calves.
In experiment 1, 71 calves were blocked by
weight and allotted to one of four individually
fed treatments: 1) control supplement (2 lb
grain creep ) (CS), 2) CS + .27 mg selenium +
500 IU vitamin E, 3) CS + 9.1 mg copper, and
4) combination of treatments 2 and 3. In
experiment 2, 80 crossbred beef calves were
blocked by weight and allotted to 5 individually
fed treatments: 1) control supplement (2 lb
grain creep) (CS), 2) CS + .27 mg selenium, 3)
CS + .27 mg selenium + 500 IU vitamin E, 4)
CS + .27 mg selenium + 1000 IU vitamin E,
and 5) CS + .27mg selenium + 1500 IU vitamin
E. Supplements were fed daily on an
individual basis. In experiment 1, vitamin E
supplementation reduced plasma haptoglobin
levels by the end of the study and tended
(P=.11) to improve postweaning gain.
However, no other effect was noted on calf
performance or immune parameters in either
experiment
Letter from unknown writer to Jesse L. Boyce
No full textLetter to Jesse L. Boyce from unknown author (possibly Jack) about the investigation into the powder magazine located in the Grand Canyon. Some personal news is included in the letter such as the writer's marriage to the daughter of C.A. Taylor, former Supervisor of Cochise County
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
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