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Author  |
Beaver, B.V. |
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Title |
Problems & values associated with dominance |
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Journal Article |
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Year |
1981 |
Publication |
Veterinary medicine, small animal clinician : VM, SAC |
Abbreviated Journal |
Vet Med Small Anim Clin |
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Volume |
76 |
Issue |
8 |
Pages |
1129-1131 |
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Keywords |
Animals; *Animals, Domestic; *Behavior, Animal; Cats; Cattle; Dogs; Horses; *Social Dominance; Swine |
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English |
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0042-4889 |
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PMID:6914851 |
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no |
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Call Number |
refbase @ user @ |
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678 |
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Author |
Beaver Bv, |
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Title |
Maternal behavior in mares |
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Journal Article |
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Year |
1981 |
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Abbreviated Journal |
Vet Med Small Anim Clin |
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Volume |
76 |
Issue |
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Pages |
315-317 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
924 |
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Author |
Bean, P. |
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Title |
Punishment: A Philosophical and Criminological Enquiry |
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Miscellaneous |
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Year |
1981 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4851 |
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Author |
Barnard, C.J.; Sibly, R.M. |
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Title |
Producers and scroungers: A general model and its application to captive flocks of house sparrows |
Type |
Journal Article |
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Year |
1981 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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Volume |
29 |
Issue |
2 |
Pages |
543-550 |
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Abstract |
Many forms of interaction within and between species appear to be based on `scrounger' individuals or species exploiting a limited resource provided `producers'. A mathematical model is presented which shows whether or not scroungers are maintained in a group, depending on their frequency and the group size. Some of the predictions of the model were tested in captive flocks of house sparrows Passer domesticus L. Here the scroungers obtained most of their food (mealworms) by interaction and the producers found most of their food by actively foraging: the pay-off to each type was measured as mealworm capture rate. Neither type changed strategy opportunistically in response to instantaneous flock composition but, not surprisingly, scroungers fared better when one of more producers were present. However, scrougers did much worse than expected when greatly outnumbered by producers, perhaps because producers then found the available food very quickly. |
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Call Number |
Equine Behaviour @ team @ |
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4200 |
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Author |
Bannikov Ag, |
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Title |
Kulan Moskau |
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Book Whole |
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Year |
1981 |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
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Call Number |
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Serial |
921 |
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Author |
Axelrod, R.; Hamilton, W.D. |
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Title |
The evolution of cooperation |
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Journal Article |
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Year |
1981 |
Publication |
Science |
Abbreviated Journal |
Science |
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Volume |
211 |
Issue |
4489 |
Pages |
1390-1396 |
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Abstract |
Cooperation in organisms, whether bacteria or primates, has been a difficulty for evolutionary theory since Darwin. On the assumption that interactions between pairs of individuals occur on a probabilistic basis, a model is developed based on the concept of an evolutionarily stable strategy in the context of the Prisoner's Dilemma game. Deductions from the model, and the results of a computer tournament show how cooperation based on reciprocity can get started in an asocial world, can thrive while interacting with a wide range of other strategies, and can resist invasion once fully established. Potential applications include specific aspects of territoriality, mating, and disease. |
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Notes |
10.1126/science.7466396 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4933 |
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Author |
Andersson, P.; Kvassman, J.; Lindstrom, A.; Olden, B.; Pettersson, G. |
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Title |
Effect of NADH on the pKa of zinc-bound water in liver alcohol dehydrogenase |
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Journal Article |
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Year |
1981 |
Publication |
European Journal of Biochemistry / FEBS |
Abbreviated Journal |
Eur J Biochem |
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Volume |
113 |
Issue |
3 |
Pages |
425-433 |
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Keywords |
Alcohol Oxidoreductases/*metabolism; Aldehydes/metabolism; Animals; Binding Sites; Cinnamates/metabolism; Horses; Hydrogen-Ion Concentration; Kinetics; Ligands; Liver/*metabolism; NAD/*metabolism; Water/metabolism; Zinc/metabolism |
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Equilibrium constants for coenzyme binding to liver alcohol dehydrogenase have been determined over the pH range 10--12 by pH-jump stop-flow techniques. The binding of NADH or NAD+ requires the protonated form of an ionizing group (distinct from zinc-bound water) with a pKa of 10.4. Complex formation with NADH exhibits an additional dependence on the protonation state of an ionizing group with a pKa of 11.2. The binding of trans-N,N-dimethylaminocinnamaldehyde to the enzyme . NADH complex is prevented by ionization of the latter group. It is concluded from these results that the pKa-11.2-dependence of NADH binding most likely derives from ionization of the water molecule bound at the catalytic zinc ion of the enzyme subunit. The pKa value of 11.2 thus assigned to zinc-bound water in the enzyme . NADH complex appears to be typical for an aquo ligand in the inner-sphere ligand field provided by the zinc-binding amino acid residues in liver alcohol dehydrogenase. This means that the pKa of metal-bound water in zinc-containing enzymes can be assumed to correlate primarily with the number of negatively charged protein ligands coordinated by the active-site zinc ion. |
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ISSN |
0014-2956 |
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PMID:7011796 |
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Call Number |
Equine Behaviour @ team @ |
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3810 |
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