| Records |
| Author |
Sommer, H.; Barz, A.; Lindner, A. |
| Title |
Testing horses for character and temperament |
Type |
Journal Article |
| Year |
1996 |
Publication  |
Tierarztliche Umschau |
Abbreviated Journal |
Tierärztl. Umschau |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
3567 |
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| Author |
Gothe, R. |
| Title |
[Tapeworms, a problem in equine practice?] |
Type |
Journal Article |
| Year |
1994 |
Publication |
Tierarztliche Praxis |
Abbreviated Journal |
Tierarztl Prax |
| Volume |
22 |
Issue |
5 |
Pages |
466-470 |
| Keywords |
Animals; Cestode Infections/diagnosis/parasitology/therapy/*veterinary; *Horse Diseases/diagnosis/parasitology/therapy; Horses |
| Abstract |
This paper gives a survey on biology and ecology of equine tapeworms as well as on pathogenesis, clinics, diagnosis, therapy, and prophylaxis of tapeworm infections. |
| Address |
Institut fur Vergleichende Tropenmedizin und Parasitologie, Ludwig-Maximilians-Universitat Munchen |
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German |
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Original Title |
Bandwurmer, ein Problem in der Pferdepraxis? |
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0303-6286 |
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| Notes |
PMID:7855855 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2663 |
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| Author |
Dixon, J. |
| Title |
The horse: A dumb animal?... neigh |
Type |
Journal Article |
| Year |
1970 |
Publication |
Thoroughbred Rec. |
Abbreviated Journal |
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| Volume |
192 |
Issue |
19 |
Pages |
1654-1657 |
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Cited By (since 1996): 6; Export Date: 24 October 2008 |
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no |
| Call Number |
Admin @ knut @ |
Serial |
4582 |
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| Author |
Kirkpatrick, J.F.; Shldeler, S.E.; Lasley, B.L.; Turner, J.W.J. |
| Title |
Pregnancy determination in uncaptured feral horses by means of fecal steroid conjugates |
Type |
Journal Article |
| Year |
1991 |
Publication |
Theriogenology |
Abbreviated Journal |
Theriogenology |
| Volume |
35 |
Issue |
4 |
Pages |
753-760 |
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| Abstract |
This study was carried out to develop an accurate, rapid and inexpensive method for diagnosing pregnancy in uncaptured feral horses by analysis of fecal steroid metabolites and to compare the accuracy of this method with diagnosis by urinary estrone conjugates (E(1)C). Paired urine and fecal samples were collected from 40 sexually mature feral mares during August and October. Urine samples were extracted directly from the soil and analyzed by enzymeimmunoassay (EIA) for E(1)C. Water extracts of fecal samples were assayed by EIA for E(1)C and nonspecific progesterone metabolites (iPdG). Urinary E(1)C, fecal E(1)C and fecal iPdG concentrations for seven mares which produced foals were 3.9 +/- 1.3 (SEM) mug/mg creatinine, 4.2 +/- 0.8 ng/g feces and 1.411 +/- 569.6 ng/g feces, respectively. Urinary E(1)C and fecal E(1)C and iPdG concentrations for the 33 mares which did not produce foals were 0.1 +/- 0.0 mug/mg creatinine and 0.5 +/- 0.1 and 32.8 +/- 4.5 ng/g feces, respectively. These differed (P < 0.01) from values in mares which produced foals. |
| Address |
Department of Biological Sciences Eastern Montana College Billings, MT 59101 USA |
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English |
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| ISSN |
0093-691X |
ISBN |
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| Notes |
PMID:16726944 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
146 |
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| Author |
Kuckelkorn, B. |
| Title |
Assessment of pregnancy in Kiang mares (Equus hemionus holdereri ) using estrogen determination in feces |
Type |
Journal Article |
| Year |
1994 |
Publication |
Theriogenology |
Abbreviated Journal |
Theriogenology |
| Volume |
42 |
Issue |
1 |
Pages |
37-42 |
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| Abstract |
Analysis of fecal estrogens was used to diagnose pregnancy in 6 Kiang mares (Equus hemionus holdereri ) that were kept at Tierpark Berlin. Three extraction methods were compared and were followed by an established RIA for total estrogen. Extraction of desiccated feces with chloroform/n-hexane and KOH, with and without enzyme hydrolysis showed better results than extraction with diethylether without hydrolysis. Pregnancy was confirmed by observation of foaling in 2 mares that showed estrogen concentrations between 800 and 1800 ng/g and in 1 mare that showed widely fluctuating values between 500 and 1300 ng/g of feces. Two mares with estrogen concentrations below 500 ng/g were not seen to foal. The method using chloroform/n-hexane and KOH without enzyme hydrolysis seems practical for non-invasive evaluation of the endocrine status in this endangered Equidae species. |
| Address |
Institute for Zoo Biology and Wildlife Research Alfred-Kowalke-Str. 17, 10315 Berlin, Germany |
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English |
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0093-691X |
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| Notes |
PMID:16727510 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
2335 |
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| Author |
Szenci, O.; Palme, R.; Taverne, M.A.; Varga, J.; Meersma, N.; Wissink, E. |
| Title |
Evaluation of false ultrasonographic pregnancy diagnoses in sows by measuring the concentration of unconjugated estrogens in feces |
Type |
Journal Article |
| Year |
1997 |
Publication |
Theriogenology |
Abbreviated Journal |
Theriogenology |
| Volume |
48 |
Issue |
5 |
Pages |
873-882 |
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| Abstract |
On Days 26, 28, and 30 after AI, ultrasonographic pregnancy diagnoses were performed on 207 gilts and sows by using a 3.5 MHz linear-array transducer. Fecal samples were taken from the rectum after each ultrasonographic examination, and the concentrations of unconjugated estrogens in selected samples (n = 73) were measured by RIA. Fecal unconjugated estrogen concentration of 11.7 ng/g feces or higher was indicative of pregnancy. The overall sensitivity and specificity of the ultrasonographic test was 99% for farrowing sows and 73.1% for nonfarrowing sows. With one exception, sows with a false negative diagnosis by ultrasonography on Day 26 were correctly diagnosed pregnant by elevated fecal unconjugated estrogens or repeated ultrasonographic examinations on Days 28 or 30. Return to estrus around the sampling period may cause false positive results in the unconjugated estrogen assay, while early embryonic mortality can result in false positive diagnoses in both the ultrasonographic test and estrogen assay. Although there was a positive correlation between the concentrations of unconjugated estrogens in the feces and litter size at farrowing in the selected sows, it seems very unlikely that fecal estrogens can provide an accurate tool for predicting litter size. |
| Address |
University of Veterinary Science, Department of Obstetrics and Reproduction H-1400 Budapest, P.O. Box 2, Hungary |
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0093-691X |
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| Notes |
PMID:16728179 |
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no |
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Equine Behaviour @ team @ |
Serial |
4077 |
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| Author |
Ginther, O.J.; Lara, A.; Leoni, M.; Bergfelt, D.R. |
| Title |
Herding and snaking by the harem stallion in domestic herds |
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Journal Article |
| Year |
2002 |
Publication |
Theriogenology |
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| Volume |
57 |
Issue |
8 |
Pages |
2139-2146 |
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Cited By (since 1996): 1; Export Date: 21 October 2008 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
4516 |
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| Author |
Delacour, J. |
| Title |
Object Perception and Recognition: A Model for the Scientific Study of Consciousness |
Type |
Journal Article |
| Year |
1997 |
Publication |
Theory Psychology |
Abbreviated Journal |
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| Volume |
7 |
Issue |
2 |
Pages |
257-262 |
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| Abstract |
The main obstacles to the scientific study of consciousness are its subjectivity and its complexity. Object perception and recognition (OPR) can be a useful model in such a study because there is a remarkable agreement between the subjective and objective aspects of OPR; in addition, while OPR is somewhat simpler than other forms of cognition, it adequately represents one characteristic feature of consciousness: intentionality. It thus allows convergent studies of experimental psychology, artificial intelligence and biology, in both humans and animals. Recent advances in the neurophysiology of visual OPR in subhuman primates and its brain imaging in humans provide a vital thread to the neural basis of consciousness, especially of its integrative, unifying character. |
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| Notes |
10.1177/0959354397072007 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
2967 |
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| Author |
Lachmann M.; Bergstrom C.T. |
| Title |
Signalling among Relatives II. Beyond the Tower of Babel |
Type |
Journal Article |
| Year |
1998 |
Publication |
Theoretical Population Biology |
Abbreviated Journal |
Theor. Pop. Biol. |
| Volume |
54 |
Issue |
2 |
Pages |
146-160 |
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| Abstract |
Models of costly signalling are commonly employed in evolutionary biology in order to explain how honest communication between individuals with conflicting interests can be stable. These models have focused primarily on a single type of honest signalling equilibrium, the separating equilibrium in which any two different signallers send distinct signals, thereby providing signal receivers with complete information. In this paper, we demonstrate that in signalling among relatives (modelled using the Sir Philip Sidney game), there is not one but a large number of possible signalling equilibria, most of which are pooling equilibria in which different types of signallers may share a common signal. We prove that in a general Sir Philip Sidney game, any partition of signallers into equi-signalling classes can have a stable signalling equilibrium if and only if it is a contiguous partition, and provide examples of such partitions. A similar (but slightly stricter) condition is shown to hold when signals are transmitted through a medium with signalling error. These results suggest a solution to a problem faced by previous signalling theory models: when we consider the separating equilibrium, signal cost is independent of the frequency of individuals sending that signal and, consequently, even very rare signaller types can drastically affect signal cost. Here, we show that by allowing these rare signallers to pool with more common signallers, signal cost can be greatly reduced. Copyright 1998 Academic Press. |
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no |
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refbase @ user @ |
Serial |
560 |
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| Author |
Quesada, J; Kintsch, W.; Gomez, E. |
| Title |
Complex problem-solving: a field in search of a definition? |
Type |
Journal Article |
| Year |
2005 |
Publication |
Theoretical Issues in Ergonomics Science |
Abbreviated Journal |
Theor Issues Ergon Sci |
| Volume |
6 |
Issue |
1 |
Pages |
5-33 |
| Keywords |
Problem solving; Dynamic decision making; Micro-worlds; Expertise |
| Abstract |
Complex problem-solving (CPS) is as an area of cognitive science that has received a good amount of attention, but theories in the field have not progressed accordingly. The reasons could be the lack of good definitions and classifications of the tasks (taxonomies). Although complexity is a term used pervasively in psychology and is operationalized in different ways, there are no psychological theories of complexity. The definition of problem-solving has been changed in the past to reflect the varied interests of the researchers and has lost its initial concreteness. These two facts together make it difficult to define CPS or make clear if CPS should reuse the theory and methods of classical problem-solving or on the contrary should build a theoretical structure starting from scratch. A taxonomy is offered of tasks using both formal features and psychological features that are theory-independent that could help compare the CPS tasks used in the literature. The adequateness is also reviewed of the most extended definitions of CPS and conclude that they are in serious need of review, since they cover tasks that are not considered problem-solving by their own authors or are not complex, but ignore others that should clearly be included. |
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Taylor and Francis Ltd |
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no |
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refbase @ user @ |
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604 |
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