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Author (up) Gonzalez-Fernandez, J.M.; Atta, S.E. openurl 
  Title Facilitated transport of oxygen in the presence of membranes in the diffusion path Type Journal Article
  Year 1982 Publication Biophysical Journal Abbreviated Journal Biophys J  
  Volume 38 Issue 2 Pages 133-141  
  Keywords Animals; Biological Transport, Active; Cell Membrane/*metabolism; Diffusion; Dogs; Horses; Humans; Kinetics; Mathematics; *Models, Biological; Muscles/*metabolism; Oxygen/*metabolism  
  Abstract Most of the experimental observations on facilitated transport have been done with millipore filters, and all the theoretical studies have assumed homogeneous spatial properties. In striated muscle there exist membranes that may impede the diffusion of the carrier myoglobin. In this paper a theoretical study is undertaken to analyze the transport in the presence of membranes in the diffusion path. For the numerical computations physiologically relevant values of the parameters were chosen. The numerical results indicate that the presence of membranes tends to decrease the facilitation. For the nonlinear chemical kinetics of the reaction of oxygen with the carrier, this decrement also depends on the location of the membranes. At the higher oxygen concentration side of each membrane the flow of combined oxygen is transferred to the flow of dissolved oxygen. The reverse process occurs at the lower concentration side. Jump discontinuities of the concentration of the oxygen-carrier compound at each membrane are associated with these transfers. The decrement of facilitation is due to the cumulative effect of these jump discontinuities.  
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  Series Volume Series Issue Edition  
  ISSN 0006-3495 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:7093418 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3806  
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Author (up) Harrington, F.H.; Mech, L.D. url  doi
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  Title An analysis of howling response parameters useful for wolf pack censusing Type Journal Article
  Year 1982 Publication J Wildl Manag Abbreviated Journal  
  Volume 46 Issue Pages  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Harrington1982 Serial 6456  
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Author (up) Hinson, R.E. openurl 
  Title Effects of UCS preexposure on excitatory and inhibitory rabbit eyelid conditioning: an associative effect of conditioned contextual stimuli Type Journal Article
  Year 1982 Publication Journal of Experimental Psychology. Animal Behavior Processes Abbreviated Journal J Exp Psychol Anim Behav Process  
  Volume 8 Issue 1 Pages 49-61  
  Keywords Animals; Association Learning; Cognition; *Conditioning, Eyelid; *Inhibition (Psychology); Practice (Psychology); Rabbits; Reaction Time  
  Abstract Preconditioning experience with the unconditional stimulus (UCS) retards subsequent excitatory conditioning. Three experiments demonstrated that this UCS retardation effect is attenuated by associative manipulations of contextual stimuli of the UCS preexposure environment. The UCS retardation effect was reduced by (a) altering contextual stimuli between preexposure and conditioning (Experiment 1), (b) latently inhibiting contextual stimuli prior to UCS preexposure (Experiment 2), and (c) extinguishing contextual stimuli subsequent to UCS preexposure (Experiment 3). Although UCS preexposure retarded excitatory conditioning, the results of Experiment 4 demonstrated that UCS preexposure facilitated inhibitory conditioning. These results indicate that an association between contextual stimuli and the preexposed UCS contributes to the effects of preconditioning UCS experience on subsequent learning.  
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  ISSN 0097-7403 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:7057144 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2787  
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Author (up) Houpt, K.A.; Keiper, R. openurl 
  Title The position of the stallion in the equine dominance hierarchy of feral and domestic ponies. Type Journal Article
  Year 1982 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci  
  Volume 54 Issue 5 Pages 945-950  
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  Notes Approved no  
  Call Number refbase @ user @ Serial 668  
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Author (up) Houpt, K.A.; Parsons, M.S.; Hintz, H.F. openurl 
  Title Learning ability of orphan foals, of normal foals and of their mothers Type Journal Article
  Year 1982 Publication Journal of animal science Abbreviated Journal J. Anim Sci.  
  Volume 55 Issue 5 Pages 1027-1032  
  Keywords Age Factors; Animals; Body Weight; Dominance-Subordination; Female; Horses/*physiology; *Learning; *Maternal Deprivation; Mothers/*psychology  
  Abstract The maze learning ability of six pony foals that had been weaned at birth was compared to that of six foals reared normally. The foals' learning ability was also compared to their mothers' learning ability at the same task; the correct turn in a single choice point maze. The maze learning test was conducted when the foals were 6 to 8 mo old and after the mothered foals had been weaned. There was no significant difference between the ability of orphaned (weaned at birth) and mothered foals in their ability to learn to turn left (6 +/- .7 and 5.1 +/- .1 trials, respectively) or to learn the reversal, to turn right (6.7 +/- .6 and 6.2 +/- .6 trials, respectively). The orphan foals spent significantly more time in the maze in their first exposure to it than the mothered foals (184 +/- 42 vs 55 +/- 15 s. Mann Whitney U = 7, P less than .05). The mothers of the foals (n = 11) learned to turn left as rapidly as the foals (5.9 +/- .7 trials), but they were slower to learn to turn right (9.8 +/- 1.4 vs 6.4 +/- .4 trials, Mann Whitney U = 33, P less than .05), indicating that the younger horses learned more rapidly. There was no correlation between the trials to criteria of the mare and those of her foal, but there was a significant negative correlation between rank in trials to criteria and age (r = -65, P less than .05) when data from the mare and foal trials were combined. The dominance hierarchy of the mares was determined using a paired feeding test in which two horses competed for one bucket of feed. Although there was no correlation between rank in the hierarchy and maze learning ability, there was a correlation between body weight and rank in the hierarchy (r = .7, P less than .05). This may indicate either that heavier horses are likely to be dominant or that horses high in dominance gain more weight. Maternal deprivation did not appear to seriously retard learning of a simple maze by foals, although the orphans moved more slowly initially. The lack of maternal influence on learning is also reflected in the lack of correlation between the mare's learning ability and that of her foal. Young horses appear to learn more rapidly than older horses.  
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  Series Volume Series Issue Edition  
  ISSN 0021-8812 ISBN Medium  
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  Notes PMID:7174546 Approved no  
  Call Number refbase @ user @ Serial 58  
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Author (up) KASEDA Y et al, openurl 
  Title Sire – foal relationships between harem stallions and foals in Misaki horses Type Journal Article
  Year 1982 Publication Abbreviated Journal Jap J Zootech Sci  
  Volume 53 Issue Pages 822-830  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1241  
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Author (up) Keiper Rr, B.J. openurl 
  Title Refuge – seeking and pest avoidance by feral horses in desert and island environments Type Journal Article
  Year 1982 Publication Abbreviated Journal App Anim Ethol  
  Volume 9 Issue Pages 111-120  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1257  
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Author (up) Klimov, V.; Orlov, V.M. openurl 
  Title Current status and problems of conservation of Przewalski's horse (Equus przewalskii). Type Journal Article
  Year 1982 Publication J. Zool., London Abbreviated Journal J. Zool., London  
  Volume 61 Issue 12 Pages  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 2329  
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Author (up) Klingel, H. openurl 
  Title Social organization of feral horses Type Journal Article
  Year 1982 Publication Journal of Reproduction and Fertility. Supplement Abbreviated Journal J Reprod Fertil Suppl  
  Volume 32 Issue Pages 89-95  
  Keywords Animals; Animals, Wild; Female; Horses/*physiology; Male; Sexual Behavior, Animal; *Social Behavior; Territoriality  
  Abstract The basic social unit in feral horses is the family group consisting of one stallion, one to a few unrelated mares and their foals. Surplus stallions associate in bachelor groups. Stallions are instrumental in bringing mares together in a unit which then persists even without a stallion. The similarity of social organization in populations living in a variety of different habitats indicates that feral horses have reverted to the habits of their wild ancestors, and that domestication has had no influence on this basic behavioural feature.  
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  Series Volume Series Issue Edition  
  ISSN 0449-3087 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:6962906 Approved no  
  Call Number refbase @ user @ Serial 1958  
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Author (up) Lenarz, M.S. openurl 
  Title Habitat partitioning in feral horses: the value of being dominant Type Journal Article
  Year 1982 Publication University of Chicago Abbreviated Journal  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 2340  
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