| Records |
| Author |
Parry, B.W.; Gay, C.C.; McCarthy, M.A. |
| Title |
Influence of head height on arterial blood pressure in standing horses |
Type |
Journal Article |
| Year |
1980 |
Publication |
American Journal of Veterinary Research |
Abbreviated Journal |
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| Volume |
41 |
Issue |
10 |
Pages  |
1626-1631 |
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Cited By (since 1996): 4; Export Date: 21 October 2008 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4539 |
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| Author |
Seyfarth, R.M.; Cheney, D.L. |
| Title |
The acoustic features of vervet monkey grunts |
Type |
Journal Article |
| Year |
1984 |
Publication |
The Journal of the Acoustical Society of America |
Abbreviated Journal |
J Acoust Soc Am |
| Volume |
75 |
Issue |
5 |
Pages |
1623-1628 |
| Keywords |
*Acoustics; Animals; Auditory Perception; Cercopithecus/*physiology; Cercopithecus aethiops/*physiology; Cues; Dominance-Subordination; Female; Male; Social Behavior; Sound Spectrography; *Vocalization, Animal |
| Abstract |
East African vervet monkeys give short (125 ms), harsh-sounding grunts to each other in a variety of social situations: when approaching a dominant or subordinate member of their group, when moving into a new area of their range, or upon seeing another group. Although all these vocalizations sound similar to humans, field playback experiments have shown that the monkeys distinguish at least four different calls. Acoustic analysis reveals that grunts have an aperiodic F0, at roughly 240 Hz. Most grunts exhibit a spectral peak close to this irregular F0. Grunts may also contain a second, rising or falling frequency peak, between 550 and 900 Hz. The location and changes in these two frequency peaks are the cues most likely to be used by vervets when distinguishing different grunt types. |
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English |
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0001-4966 |
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| Notes |
PMID:6736426 |
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no |
| Call Number |
refbase @ user @ |
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703 |
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| Author |
Ridge, J.A.; Baldwin, R.L.; Labhardt, A.M. |
| Title |
Nature of the fast and slow refolding reactions of iron(III) cytochrome c |
Type |
Journal Article |
| Year |
1981 |
Publication |
Biochemistry |
Abbreviated Journal |
Biochemistry |
| Volume |
20 |
Issue |
6 |
Pages |
1622-1630 |
| Keywords |
Animals; Ascorbic Acid; *Cytochrome c Group; Guanidines; Horses; Kinetics; Oxidation-Reduction; Protein Conformation; Spectrum Analysis |
| Abstract |
The fast and slow refolding reactions of iron(III) cytochrome c (Fe(III) cyt c), previously studied by Ikai et al. (Ikai, A., Fish, W. W., & Tanford, C. (1973) J. Mol. Biol. 73, 165--184), have been reinvestigated. The fast reaction has the major amplitude (78%) and is 100-fold faster than the slow reaction in these conditions (pH 7.2, 25 degrees C, 1.75 M guanidine hydrochloride). We show here that native cyt c is the product formed in the fast reaction as well as in the slow reaction. Two probes have been used to test for formation of native cyt c. absorbance in the 695-nm band and rate of reduction of by L-ascorbate. Different unfolded species (UF, US) give rise to the fast and slow refolding reactions, as shown both by refolding assays at different times after unfolding (“double-jump” experiments) and by the formation of native cyt c in each of the fast and slow refolding reactions. Thus the fast refolding reaction is UF leads to N and the slow refolding reaction is Us leads to N, where N is native cyt c, and there is a US in equilibrium UF equilibrium in unfolded cyt c. The results are consistent with the UF in equilibrium US reaction being proline isomerization, but this has not yet been tested in detail. Folding intermediates have been detected in both reactions. In the UF leads to N reaction, the Soret absorbance change precedes the recovery of the native 695-nm band spectrum, showing that Soret absorbance monitors the formation of a folding intermediate. In the US leads to N reaction an ascorbate-reducible intermediate has been found at an early stage in folding and the Soret absorbance change occurs together with the change at 695 nm as N is formed in the final stage of folding. |
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0006-2960 |
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| Notes |
PMID:6261802 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
3809 |
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| Author |
Templeton, J.J.; Giraldeau, L.-A. |
| Title |
Public information cues affect the scrounging decisions of starlings |
Type |
Journal Article |
| Year |
1995 |
Publication |
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Abbreviated Journal |
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| Volume |
49 |
Issue |
6 |
Pages |
1617-1626 |
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| Abstract |
The foraging decisions that individuals make within groups should depend on the information available to them. An aviary experiment was conducted to examine whether a starling's, Sturnus vulgaris, decisions either to approach and feed from (scrounge) or to avoid the patches exploited by a partner bird are influenced by the information the partner provides. Both the type of information a subject could recognize and the point at which this information became available during the partner's exploitation of a patch were manipulaed. Information concerning the quality of a patch was available in the form of a concealed colour cue and from the behaviour of the partner bird. The foraging environment was manipulated such that colour cues were either present or absent, and provided either correct or incorrect information concerning the presence of food. When cues corresponded with past foraging experience, test subjects responded selectively and profitably to the patch exploitations of the partner; they scrounged from a higher proportion of profitable patches than control birds, which lacked the ability to recognize colour cues. Test subjects also arrived more quickly at profitable patches that the partner bird discovered than did control birds; and consequently, were able to obtain more food at each food patch scrounged. Finally, test subjects avoided scrounging when the partner discovered empty patches and thus saved foraging time. Responding selectively to public information, therefore, allows an individual to compete more effectively for resources within a foraging group. |
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no |
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Equine Behaviour @ team @ |
Serial |
2190 |
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| Author |
Hostikka, S.L.; Eddy, R.L.; Byers, M.G.; Hoyhtya, M.; Shows, T.B.; Tryggvason, K. |
| Title |
Identification of a distinct type IV collagen alpha chain with restricted kidney distribution and assignment of its gene to the locus of X chromosome-linked Alport syndrome |
Type |
Journal Article |
| Year |
1990 |
Publication |
Proceedings of the National Academy of Sciences of the United States of America |
Abbreviated Journal |
Proc. Natl. Acad. Sci. U.S.A. |
| Volume |
87 |
Issue |
4 |
Pages |
1606-1610 |
| Keywords |
Amino Acid Sequence; Base Sequence; Chromosome Mapping; Cloning, Molecular; Collagen/*genetics; Epitopes/analysis; Female; Fluorescent Antibody Technique; Gene Library; *Genes; Humans; Immunoblotting; Kidney/cytology/*metabolism; Macromolecular Substances; Molecular Sequence Data; Nephritis, Hereditary/*genetics; Oligopeptides/chemical synthesis/immunology; Placenta/metabolism; Pregnancy; Restriction Mapping; Sequence Homology, Nucleic Acid; *X Chromosome |
| Abstract |
We have identified and extensively characterized a type IV collagen alpha chain, referred to as alpha 5(IV). Four overlapping cDNA clones isolated contain an open reading frame for 543 amino acid residues of the carboxyl-terminal end of a collagenous domain, a 229-residue carboxyl-terminal noncollagenous domain, and 1201 base pairs coding for a 3' untranslated region. The collagenous Gly-Xaa-Yaa repeat sequence has five imperfections that coincide with those in the corresponding region of the alpha 1(IV) chain. The noncollagenous domain has 12 conserved cysteine residues and 83% and 63% sequence identity with the noncollagenous domains of the alpha 1(IV) and alpha 2(IV) chains, respectively. The alpha 5(IV) chain has less sequence identity with the putative bovine alpha 3(IV) and alpha 4(IV) chains. Antiserum against an alpha 5(IV) synthetic peptide stained a polypeptide chain of about 185 kDa by immunoblot analysis and immunolocalization of the chain in human kidney was almost completely restricted to the glomerulus. The gene was assigned to the Xq22 locus by somatic cell hybrids and in situ hybridization. This may be identical or close to the locus of the X chromosome-linked Alport syndrome that is believed to be a type IV collagen disease. |
| Address |
Biocenter, University of Oulu, Finland |
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English |
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0027-8424 |
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PMID:1689491 |
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no |
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Equine Behaviour @ team @ |
Serial |
5291 |
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| Author |
Bloom, P. |
| Title |
Behavior. Can a dog learn a word? |
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Journal Article |
| Year |
2004 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
304 |
Issue |
5677 |
Pages |
1605-1606 |
| Keywords |
Animals; Child; Child, Preschool; *Dogs; Humans; *Learning; *Memory; *Vocabulary |
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Department of Psychology, Yale University, Post Office Box 208205, New Haven, CT 06520-8205, USA. paul.bloom@yale.edu |
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English |
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1095-9203 |
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PMID:15192205 |
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no |
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28 |
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| Author |
Schultz, W.; Dayan, P.; Montague, P.R. |
| Title |
A Neural Substrate of Prediction and Reward |
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Journal Article |
| Year |
1997 |
Publication |
Science |
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| Volume |
275 |
Issue |
5306 |
Pages |
1593-1599 |
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The capacity to predict future events permits a creature to detect, model, and manipulate the causal structure of its interactions with its environment. Behavioral experiments suggest that learning is driven by changes in the expectations about future salient events such as rewards and punishments. Physiological work has recently complemented these studies by identifying dopaminergic neurons in the primate whose fluctuating output apparently signals changes or errors in the predictions of future salient and rewarding events. Taken together, these findings can be understood through quantitative theories of adaptive optimizing control. |
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no |
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Equine Behaviour @ team @ |
Serial |
5749 |
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| Author |
Hauser MD; Kralik J |
| Title |
Life beyond the mirror: a reply to Anderson & Gallup |
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Journal Article |
| Year |
1997 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
54 |
Issue |
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1568 |
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no |
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Equine Behaviour @ team @ |
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3002 |
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| Author |
Timney, B.; Macuda, T. |
| Title |
Vision and hearing in horses |
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Journal Article |
| Year |
2001 |
Publication |
Journal of the American Veterinary Medical Association |
Abbreviated Journal |
J Am Vet Med Assoc |
| Volume |
218 |
Issue |
10 |
Pages |
1567-1574 |
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no |
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Equine Behaviour @ team @ room B 3.029 |
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2278 |
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Bartoš, L.; Bartošová, J.; Pluhácek, J.; Šindelárová, J. |
| Title |
Promiscuous behaviour disrupts pregnancy block in domestic horse mares |
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Journal Article |
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2011 |
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Abbreviated Journal |
Behavioral Ecology and Sociobiology |
| Volume |
65 |
Issue |
8 |
Pages |
1567-1572 |
| Keywords |
Foetal loss; Domestic horse; Bruce effect; Sexual behaviour |
| Abstract |
Based on questionnaires from horse breeders, we found that bringing a pregnant mare which had been mated away from home into a vicinity of a familiar male who was not the father of her foetus increased probability of pregnancy disruption. These mares aborted in 31% of cases, while none of those mated within the home stable aborted. Repeated sexual activity either by a stallion or dominant gelding from the normal home group was observed shortly after the mare came from away-mating. Pregnant mares isolated from home males by a fence were even seen soliciting them over the fence. We speculate that, once returned to the home “herd”, and introduced to familiar males, mares were more likely to terminate their pregnancy to save energy and avoid likely future infanticidal loss of their progeny by dominant male(s) of the home social group. This is a newly discovered phenomenon where a mare manipulates the male’s paternity assessment by promiscuous mating. It may explain a common increased incidence of foetal loss in domestic horses occurring in nearly 40% of pregnancies. We conclude that the common practice of transporting the mare for mating and then bringing her back to an environment with males, stallions or geldings, which did not sire the foetus, is the main cause of high percentages of pregnancy disruption in domestic horses. |
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Springer-Verlag |
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English |
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0340-5443 |
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no |
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Equine Behaviour @ team @ |
Serial |
5834 |
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