| Records |
| Author |
HUGHES RD et al, |
Title  |
Interactions between Camague horses and horseflies |
Type |
Journal Article |
| Year |
1981 |
Publication |
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Abbreviated Journal |
Bull Entomol Res 71 |
| Volume |
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Issue |
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Pages |
227-242 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
| Call Number |
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Serial |
1210 |
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| Author |
Partridge, B.L. |
| Title |
Internal dynamics and the interrelations of fish in schools |
Type |
Journal Article |
| Year |
1981 |
Publication |
Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology |
Abbreviated Journal |
J Comp Physiol Sensory Neural Behav Physiol |
| Volume |
144 |
Issue |
3 |
Pages |
313-325 |
| Keywords |
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| Abstract |
The three-dimensional structure of schools of saithe (Pollachius virens) and the interactions between individuals over time were analyzed in 12,240 frames of videotape sampled at 2.7 Hz. Time series analyses of the interactions between identified individuals allowed testing of assumptions of anonymity vs. leadership in schools and investigation of the transfer of information between individuals by which collective decisions are made. Results include the following:1.Saithe match changes in both swimming direction and speed of their neighbors but correlations are greater for swimming speed. Average speed of the school does not greatly affect correlations between neighboring fish although the reaction latencies may be somewhat increased. As shown previously (Partridge et al. 1980) nearest neighbor distance (NND) decreases with increasing school velocity.2.Saithe simultaneously match the headings and swimming speeds of at least their first two nearest neighbors within the school (NN1 and NN2). Partialling out the correlation between a fish's neighbors demonstrates that a fish's correlation to his second nearest neighbor (NN2) is not simply a transitive function of mutual correlation between the NN1 and NN2.3.Several sources of individual variation in schooling performance were examined. In all respects except one, that of preferred positions within the school, saithe showed no individual differences, i.e., some were not “better schoolers” than others. Although fish in the school differed in length by up to a factor of 2.5, no size related effects in NND or nearest neighbor positioning were found.4.Single Linkage Cluster Analysis (SLCA) of the cross-correlations of fishs' swimming speeds and directions demonstrated quantitatively the existence of subgroups within schools if they contain more than 10-11 members. Subgroups acting more-or-less independently in terms of short term variations in speed and direction nonetheless remained within the school as a whole and were not often apparent to observers since members of one group interdigitated with those of another. How individuals know to which subgroup they belong remains unanswered. |
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no |
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Serial |
2063 |
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| Author |
Saigo, S. |
| Title |
Kinetic and equilibrium studies of alkaline isomerization of vertebrate cytochromes c |
Type |
Journal Article |
| Year |
1981 |
Publication |
Biochimica et Biophysica Acta |
Abbreviated Journal |
Biochim Biophys Acta |
| Volume |
669 |
Issue |
1 |
Pages |
13-20 |
| Keywords |
Amino Acid Sequence; Animals; Cytochrome c Group/*metabolism; Dogs; Hydrogen-Ion Concentration; Isomerism; Kinetics; Vertebrates/metabolism |
| Abstract |
Equilibria and kinetics of alkaline isomerization of seven ferricytochromes c from vertebrates were studied by pH-titration and pH-jump methods in the pH region of 7-12. In the equilibrium behavior, no significant difference was detected among the cytochromes c, whereas marked differences in the kinetic behavior were observed. According to the kinetic behavior of the isomerization, the cytochromes c examined fall into three classes: Group I (horse, sheep, dog and pigeon cytochromes c), Group II (tuna and bonito cytochromes c) and Group III (rhesus monkey cytochrome c). The kinetic results are interpreted in terms of the sequential scheme: Neutral form in equilibrium with fast Transient form in equilibrium with slow Alkaline form where the neutral and alkaline forms are the species stable at neutral and alkaline pH, respectively, and the transient form is a kinetic intermediate. From comparison of the primary sequences of the seven cytochromes c and the classification of these cytochromes c, it is concluded that the amino acid substitution Phe/Tyr at the 46-th position has a major influence on the kinetic behavior. In Group II and III cytochromes c, the ionization of Tyr-46 is suggested to bring about loosening of the heme crevice and thus facilitate the ligand replacement involved in the isomerization. |
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English |
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Series Issue |
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Edition |
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| ISSN |
0006-3002 |
ISBN |
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Medium |
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Expedition |
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Conference |
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| Notes |
PMID:6271238 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
3871 |
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| Author |
Bannikov Ag, |
| Title |
Kulan Moskau |
Type |
Book Whole |
| Year |
1981 |
Publication |
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Abbreviated Journal |
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Issue |
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Pages |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
| Call Number |
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Serial |
921 |
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| Author |
McCall, C.A.; Potter, G.D.; Friend, T.H.; Ingram, R.S. |
| Title |
Learning abilities in yearling horses using the Hebb-Williams closed field maze |
Type |
Journal Article |
| Year |
1981 |
Publication |
J. Anim. Sci. |
Abbreviated Journal |
J. Anim. Sci. |
| Volume |
53 |
Issue |
4 |
Pages |
928-933 |
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| Notes |
Cited By (since 1996): 9; Export Date: 24 October 2008 |
Approved |
no |
| Call Number |
Admin @ knut @ |
Serial |
4613 |
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| Author |
Miller, R. |
| Title |
Male aggression, dominance and breeding behaviour in Red Desert feral horses |
Type |
Journal Article |
| Year |
1981 |
Publication |
Zeitschrift fur Tierpsychologie |
Abbreviated Journal |
Z. Tierpsychol. |
| Volume |
57 |
Issue |
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Pages |
340-201 |
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no |
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Equine Behaviour @ team @ |
Serial |
2374 |
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| Author |
Beaver Bv, |
| Title |
Maternal behavior in mares |
Type |
Journal Article |
| Year |
1981 |
Publication |
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Abbreviated Journal |
Vet Med Small Anim Clin |
| Volume |
76 |
Issue |
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Pages |
315-317 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
| Call Number |
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Serial |
924 |
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| Author |
Leblanc Ma, B.M. |
| Title |
Mise au point d`une épreuve destinée de la reconnaissance du jeune par la mère chez chaval |
Type |
Journal Article |
| Year |
1981 |
Publication |
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Abbreviated Journal |
Biol Beh |
| Volume |
6 |
Issue |
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Pages |
283-290 |
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ISBN |
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Expedition |
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Conference |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
| Call Number |
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Serial |
1342 |
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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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English |
Summary Language |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0006-2960 |
ISBN |
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Medium |
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Conference |
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| Notes |
PMID:6261802 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
3809 |
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| Author |
Hendricks, J.C.; Morrison, A.R. |
| Title |
Normal and abnormal sleep in mammals |
Type |
Journal Article |
| Year |
1981 |
Publication |
Journal of the American Veterinary Medical Association |
Abbreviated Journal |
J Am Vet Med Assoc |
| Volume |
178 |
Issue |
2 |
Pages |
121-126 |
| Keywords |
Animals; Cat Diseases/physiopathology; Cats; Cattle; Dog Diseases/physiopathology; Dogs; Dreams; Horses/physiology; Humans; Narcolepsy/physiopathology/veterinary; Sleep/*physiology; Sleep Apnea Syndromes/physiopathology/veterinary; Sleep Disorders/physiopathology/*veterinary; Sleep, REM/physiology |
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English |
Summary Language |
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Series Title |
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Abbreviated Series Title |
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Edition |
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| ISSN |
0003-1488 |
ISBN |
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Expedition |
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Conference |
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| Notes |
PMID:7204232 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
101 |
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