| Records |
| Author |
Thomas R. Zentall |
| Title |
Animal Cognition: The Bridge BetweenAnimal Learning and Human Cognition |
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Journal Article |
| Year |
1999 |
Publication |
Psychological Science |
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| Volume |
10 |
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Pages |
206-208 |
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refbase @ user @ |
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3481 |
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| Author |
Mullin, M.H. |
| Title |
MIRRORS AND WINDOWS: Sociocultural Studies of Human-Animal Relationships |
Type |
Journal Article |
| Year |
1999 |
Publication |
Annual Review of Anthropology |
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| Volume |
28 |
Issue |
1 |
Pages |
201-224 |
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| Abstract |
Humans' relationships with animals, increasingly the subject of controversy, have long been of interest to those whose primary aim has been the better understanding of humans' relationships with other humans. Since this topic was last reviewed here, human-animal relationships have undergone considerable reexamination, reflecting key trends in the history of social analysis, including concerns with connections between anthropology and colonialism and with the construction of race, class, and gender identities. There have been many attempts to integrate structuralist or symbolic approaches with those focused on environmental, political, and economic dimensions. Human-animal relationships are now much more likely to be considered in dynamic terms, and consequently, there has been much interdisciplinary exchange between anthropologists and historians. Some research directly engages moral and political concerns about animals, but it is likely that sociocultural research on human-animal relationships will continue to be as much, if not more, about humans. |
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3534 |
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| Author |
Odberg, F.O.; Bouissou, M.F. |
| Title |
The development of equestrianism from the baroque period to the present day and its consequences for the welfare of horses |
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Journal Article |
| Year |
1999 |
Publication |
Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
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Issue |
28 |
Pages |
26-30 |
| Keywords |
Animal Husbandry/*history/standards; Animal Welfare/*history; Animals; Bonding, Human-Pet; History, 15th Century; History, 16th Century; History, 17th Century; History, 18th Century; History, 19th Century; History, 20th Century; *Horses; Humans; Stress/etiology/history/veterinary |
| Abstract |
Many saddle horses are slaughtered at a young age which could be indicative of a welfare problem. Bad riding is probably an underestimated source of poor welfare. Widespread knowledge of 'academic' riding should be encouraged and should be beneficial to all horses, at all schooling levels, for all purposes. In particular, 18th century principles tend to be forgotten and in this article the authors illustrate some differences to modern dressage. Various suggestions are made in order to improve welfare. |
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University of Ghent, Faculty of Veterinary Medicine, Heidestraat 19, B-9820, Merelbeke, Belgium |
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English |
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PMID:11314231 |
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Equine Behaviour @ team @ |
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3729 |
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| Author |
Clayton, H.M.; Lanovaz, J.L.; Schamhardt, H.C.; van Wessum, R. |
| Title |
The effects of a rider's mass on ground reaction forces and fetlock kinematics at the trot |
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Journal Article |
| Year |
1999 |
Publication |
Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
| Volume |
30 |
Issue |
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Pages |
218-221 |
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Animals; Body Weight; Computer Simulation; Gait/*physiology; Horses/*physiology; Physical Conditioning, Animal/*physiology; Stress, Mechanical; Weight-Bearing/*physiology |
| Abstract |
Ground reaction force (GRF) measurements are often normalised to body mass to facilitate inter-individual comparisons. The objective of this study was to explore the effect of a rider on the GRFs and fetlock joint kinematics of trotting horses. The subjects were 5 dressage-trained horses and 3 experienced dressage riders. Ground reaction force measurements and sagittal view videotapes were recorded as the horses trotted at the same velocity in hand (3.49 +/- 0.52 m/s) and with a rider (3.49 +/- 0.46 m/s). Data were time-normalised to stance duration. Ground reaction force measurements were expressed in absolute terms and normalised to the system mass (horse or horse plus rider). All the horses showed changes in the same direction when comparing the ridden condition with the in-hand condition. There was an increase in the absolute peak vertical GRFs of the fore- and hindlimbs with a rider. However, the mass-normalised peak vertical GRFs were lower for the ridden condition, with the peak occurring later in the forelimbs and earlier in the hindlimbs compared with the inhand condition. Maximal fetlock angle and its time of occurrence were similar for the 2 conditions, but the fore fetlock joint was more extended during the later part of the stance phase in ridden horses. The presence of a rider appeared to affect the GRFs and fetlock joint kinematics differently in the fore- and hindlimbs, and the ridden horse did not seem to be equivalent to a proportionately larger horse. This should be considered when normalising for body mass in studies comparing horses in hand and ridden horses. |
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Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing 48824-1314, USA |
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PMID:10659255 |
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Equine Behaviour @ team @ |
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3733 |
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| Author |
Hodson, E.F.; Clayton, H.M.; Lanovaz, J.L. |
| Title |
Temporal analysis of walk movements in the Grand Prix dressage test at the 1996 Olympic Games |
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Journal Article |
| Year |
1999 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
| Volume |
62 |
Issue |
2-3 |
Pages |
89-97 |
| Keywords |
Dressage; Horse; Kinematics; Locomotion; Gait |
| Abstract |
Video analysis was used to measure temporal characteristics of the collected walk, extended walk and half pirouette at walk of eleven competitors during the team dressage competition at the 1996 Summer Olympic Games in Atlanta, GA. Forelimb stance durations, hind limb stance durations, lateral step intervals and diagonal step intervals were symmetrical for the right and left sides in the collected and extended walk strides, but there were left-right asymmetries in the forelimb stance duration and in the lateral step interval in the half pirouette strides. For both collected and extended walk strides, hind limb stance duration was significantly longer than forelimb stance duration. The mean values for the group of eleven horses showed that the collected and extended walks had a regular rhythm. The half pirouette strides showed an irregularity in which there was a short interval between footfalls of the outside forelimb and inside hind limb, and along interval between footfalls of the inside hind limb and inside forelimb. This irregularity reflected an early placement of the inside hind limb. The stance times of both hind limbs were prolonged and this finding, in combination with the early placement of the inside hind limb, led to an increase in the period of tripedal support in each stride of the half pirouette. This was interpreted as a means of maintaining the horses' balance in the absence of forward movement. |
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refbase @ user @ |
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3960 |
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| Author |
Cioni, P.; Strambini, G.B. |
| Title |
Pressure/temperature effects on protein flexibilty from acrylamide quenching of protein phosphorescence |
Type |
Journal Article |
| Year |
1999 |
Publication |
Journal of Molecular Biology |
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| Volume |
291 |
Issue |
4 |
Pages |
955-964 |
| Keywords |
phosphorescence; tryptophan; acrylamide; quenching; protein dynamics |
| Abstract |
Pressure is an effective modulator of protein structure and biological function. The influence of hydrostatic pressure ([less-than-or-equals, slant]3 kbar, 10-50[degree sign]C) on conformational dynamics was assessed from the rate of migration of acrylamide through the protein interior. Migration rates in apoazurin, alcohol dehydrogenase and alkaline phosphatase were obtained from the phosphorescence quenching rate constant (kq) of the deeply buried Trp residues. The dominant effect of applied pressure is to slow the diffusion process, although at low temperature, high pressure may also accelerate it. For apoazurin, alcohol dehydrogenase and alkaline phosphatase the activation free volumes, ΔVobs++, derived from the pressure-dependence of kq, ranges from +10, +16 and +20 ml mol-1 at 50[degree sign]C to -20, +5 and 0 ml mol-1 at 10[degree sign]C, respectively. Analysing ΔVobs++ in terms of a positive contribution from cavity expansion and a negative one from peptide hydration, the results emphasise that whereas at warm temperature the formation of cavities plays a dominant role in the migration process, at low temperature the required flexibility may be conferred by internal protein hydration. The relatively small magnitude of both ΔVobs++ and the activation enthalpy (ΔH++=10-20 kcal mol-1) indicates that acrylamide diffusion jumps inside these proteins appear to involve relatively small amplitude structural fluctuations not requiring major unfolding-like transitions. The implication of these findings for the thermodynamic stability of proteins under pressure is discussed. |
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refbase @ user @ |
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3975 |
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| Author |
Robinson, I.H. |
| Title |
The human-horse relationship: how much do we know? |
Type |
Journal Article |
| Year |
1999 |
Publication |
Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
| Volume |
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Issue |
28 |
Pages |
42-45 |
| Keywords |
*Animal Husbandry/economics; Animals; *Bonding, Human-Pet; Cost-Benefit Analysis; Hobbies; *Horses; Humans; Power (Psychology); Sports |
| Abstract |
Human relationships or interactions with horses have varied throughout history depending on human needs, but it is horses' ability to carry a human individual that has had perhaps the greatest impact on their relationship with man. Despite our long association with the horse, there have been few studies on human-horse relationships. There is little historical evidence on individual relationships with horses but indications of strong human-horse relationships have been noted in mounted societies, such as North American Plains Indians. Riding a horse has traditionally been associated with power, and was reserved for the ruling elite in many areas. Demographic data suggest that human relationships with horses may have changed in recent times. Although the lack of land and the relatively high cost of horse care may reduce the possibility of ownership for many people, the availability of riding establishments and increases in leisure time mean that riding is no longer restricted to the upper classes. There is a wide range in type and intensity of potential interactions with horses, indicating that human-horse relationships are likely to vary considerably. Some people appear to sacrifice a great deal in order to own a horse. However, the motivation behind these activities and the process by which an individual assesses personal costs of ownership versus their perceived benefits remains to be studied. Future research should focus on characterising the human-horse relationship, and the degree of individual and cultural variation. A greater understanding of horse owner perceptions of 'costs' versus 'benefits' may also increase our understanding of the relationship and the economic importance of horses in society. |
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WALTHAM Centre for Pet Nutrition, Freeby Lane, Waltham-on-the-Wolds, Leics LE14 4RT, UK |
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PMID:11314234 |
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Equine Behaviour @ team @ |
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4361 |
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| Author |
Gough, M.R. |
| Title |
A note on the use of behavioural modification to aid clipping ponies |
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Journal Article |
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1999 |
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Applied Animal Behaviour Science |
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Appl. Anim. Behav. Sci. |
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63 |
Issue |
2 |
Pages |
171-175 |
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Cited By (since 1996): 3; Export Date: 21 October 2008 |
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Equine Behaviour @ team @ |
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4518 |
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| Author |
Mills, D.S.; Nankervis, K.J. |
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Book Whole |
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1999 |
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Equine Behaviour: Principles and Practice |
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Cited By (since 1996): 26; Export Date: 21 October 2008 |
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Equine Behaviour @ team @ |
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4533 |
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Mladenoff, D.J.; Sickley, T.A.; Wydeven, A.P. |
| Title |
Predicting gray wolf landscape recolonization: logistic regression models vs. new field data |
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Journal Article |
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1999 |
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Ecol Appl |
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9 |
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Equine Behaviour @ team @ Mladenoff1999 |
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6442 |
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