Records |
Author |
Dowdle, W.R.; Schild, G.C. |
Title |
Influenza: its antigenic variation and ecology |
Type |
Journal Article |
Year |
1976 |
Publication |
Bulletin of the Pan American Health Organization |
Abbreviated Journal |
Bull Pan Am Health Organ |
Volume |
10 |
Issue |
3 |
Pages |
193-195 |
Keywords |
Animals; *Antigens, Viral; Bird Diseases/microbiology; Birds; Hemagglutinins, Viral; Horse Diseases/microbiology; Horses; Humans; Influenza A virus/immunology/isolation & purification; Influenza, Human/epidemiology; Mutation; Neuraminidase/immunology; Orthomyxoviridae/enzymology/*immunology; Orthomyxoviridae Infections/microbiology/veterinary; Recombination, Genetic; Swine; Swine Diseases/microbiology |
Abstract |
Influenza viruses have two surface antigens, the glycoprotein structures hemagglutinin (HA) and neuraminidase (NA). Antibodies to each of these are associated with immunity, but the structures themselves are antigenically variable. When an antigenic change is gradual over time it is referred to as a drift, while a sudden complete or major change in either or both antigens is termed a shift. The mechanism of antigenic drift is usually attributed to selection of preexisting mutants by pressure from increasing immunity in the human population. The mechanism of antigenic shift is less clear, but one tentative hypothesis is that shifts arise from mammalian or avian reservoirs, or through genetic recombination of human and animal influenza strains. |
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Edition |
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ISSN |
0085-4638 |
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Notes |
PMID:187273 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2700 |
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Author |
Mirzaeva, A.G. |
Title |
[Age makeup of female Culicoides sinanoensis Tok. in the coniferous-broad-leaved forest zone of the southern Maritime Territory] |
Type |
Journal Article |
Year |
1974 |
Publication |
Parazitologiia |
Abbreviated Journal |
Parazitologiia |
Volume |
8 |
Issue |
6 |
Pages |
524-530 |
Keywords |
Age Factors; Animals; *Ceratopogonidae/physiology; Corpus Luteum/physiology; Ecology; Female; Horses/parasitology; Humans; Ovulation; Pigments, Biological/physiology; Seasons; Siberia; Trees |
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Language |
Russian |
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Original Title |
Vozrastnoi sostav samok Culicoides sinanoensis Tok. v zone khvoino-shirokolistvennykh lesov Iuzhnogo Primor'ia |
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ISSN |
0031-1847 |
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Notes |
PMID:4449654 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2707 |
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Author |
Davies, R.B.; Clark, G.G. |
Title |
Trypanosomes from elk and horse flies in New Mexico |
Type |
Journal Article |
Year |
1974 |
Publication |
Journal of Wildlife Diseases |
Abbreviated Journal |
J Wildl Dis |
Volume |
10 |
Issue |
1 |
Pages |
63-65 |
Keywords |
Animals; *Artiodactyla; Blood/microbiology; *Diptera; Ecology; *Insect Vectors; New Mexico; Trypanosoma/*isolation & purification; Trypanosomiasis/microbiology/*veterinary |
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Edition |
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ISSN |
0090-3558 |
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Notes |
PMID:4810218 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2709 |
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Author |
Clark, G.G.; Hibler, C.P. |
Title |
Horse flies and Elaeophora schneideri in the Gila National Forest, New Mexico |
Type |
Journal Article |
Year |
1973 |
Publication |
Journal of Wildlife Diseases |
Abbreviated Journal |
J Wildl Dis |
Volume |
9 |
Issue |
1 |
Pages |
21-25 |
Keywords |
Animals; *Diptera; Ecology; *Filarioidea; Geography; Insect Vectors; Larva; New Mexico; Seasons |
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ISSN |
0090-3558 |
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Notes |
PMID:4694585 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2714 |
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Author |
Valova, G.P.; Mefod'ev, V.V. |
Title |
[Specific features of an epidemic process in leptospiroses in northern conditions in Western Siberia] |
Type |
Journal Article |
Year |
1972 |
Publication |
Zhurnal Mikrobiologii, Epidemiologii, i Immunobiologii |
Abbreviated Journal |
Zh Mikrobiol Epidemiol Immunobiol |
Volume |
49 |
Issue |
11 |
Pages |
138-145 |
Keywords |
Animals; Bird Diseases/epidemiology; Birds; Carnivora; Cattle; Cattle Diseases/epidemiology; Dog Diseases/epidemiology; Dogs; Ecology; Foxes; Horse Diseases/epidemiology; Horses; Humans; Insectivora; Leptospirosis/*epidemiology/veterinary; Mice; Rats; Reindeer; Rodent Diseases/epidemiology; Rodentia; Sheep; Sheep Diseases/epidemiology; Siberia |
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Language |
Russian |
Summary Language |
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Original Title |
Nekotorye spetsificheskie cherty epidemicheskogo protsessa pri leptospirozakh v usloviiakh Severa v Zapadnoi Sibiri |
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ISSN |
0372-9311 |
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Notes |
PMID:4645851 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2718 |
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Author |
Manning, G.S.; Ratanarat, C. |
Title |
Fasciolopsis buski (Lankester, 1857) in Thailand |
Type |
Journal Article |
Year |
1970 |
Publication |
The American Journal of Tropical Medicine and Hygiene |
Abbreviated Journal |
Am J Trop Med Hyg |
Volume |
19 |
Issue |
4 |
Pages |
613-619 |
Keywords |
Adolescent; Adult; Aged; Animals; Buffaloes; Cattle; Child; Child, Preschool; *Disease Reservoirs; Dogs; Ecology; *Fasciolidae; Feces; Female; Health Surveys; Horses; Humans; Infant; Infant, Newborn; Male; Middle Aged; *Plants, Edible; Sex Factors; *Snails; Swine; Thailand; Trematode Infections/*epidemiology |
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Original Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0002-9637 |
ISBN |
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Medium |
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Notes |
PMID:5425498 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2734 |
Permanent link to this record |
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Author |
Nelson, G.S. |
Title |
Onchocerciasis |
Type |
Journal Article |
Year |
1970 |
Publication |
Advances in Parasitology |
Abbreviated Journal |
Adv Parasitol |
Volume |
8 |
Issue |
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Pages |
173-224 |
Keywords |
Africa; Animals; Anthelmintics/therapeutic use; Artiodactyla; Blindness/etiology; Cattle; Circadian Rhythm; Ddt; Diethylcarbamazine/therapeutic use; Diptera/anatomy & histology/growth & development; Dwarfism/etiology; Ecology; Eye/pathology; Feeding Behavior; Female; Geography; Haplorhini; Hernia, Femoral/etiology; Horses; Humans; Insect Vectors/growth & development; Larva/growth & development; Male; Onchocerca/classification/growth & development; *Onchocerciasis/diagnosis/drug therapy/epidemiology/immunology/pathology/prevention & control/veterinary; Primates; Serologic Tests; Skin/pathology; Skin Tests; Suramin/therapeutic use |
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Edition |
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ISSN |
0065-308X |
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Notes |
PMID:4997515 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2738 |
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Author |
Cavoto, K.K.; Cook, R.G. |
Title |
Cognitive precedence for local information in hierarchical stimulus processing by pigeons |
Type |
Journal Article |
Year |
2001 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
27 |
Issue |
1 |
Pages |
3-16 |
Keywords |
Animals; Behavior, Animal; *Cognition; *Columbidae; Conditioning, Operant; Male |
Abstract |
Four experiments investigated the processing of hierarchical stimuli by pigeons. Using a 4 alternative divided-attention task, 4 pigeons were food-reinforced for accurately identifying letters arranged as either hierarchical global- or local-relevant stimuli or as size-matched filled stimuli. Experiment 1 found that task acquisition was faster with local-relevant than global-relevant stimuli. This difference was not due to letter size. Experiment 2 demonstrated successful transfer to a novel irrelevant letter configuration. Experiments 3 and 4 tested pigeons' responses to conflict probe stimuli composed of equally discriminable relevant letters at each level. These tests revealed that all of the pigeons showed a cognitive precedence for local information early in processing, with the pigeons using different cues to initiate the processing of global information. This local advantage contrasts with previously reported results for humans and pigeons but is similar to that reported for nonhuman primates. Alternatives attempting to reconcile these contrasting comparative results are considered. |
Address |
Department of Psychology, Tufts University, Medford, Massachusetts 02155, USA |
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English |
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0097-7403 |
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Notes |
PMID:11199512 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2773 |
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Author |
Tommasi, L.; Vallortigara, G. |
Title |
Searching for the center: spatial cognition in the domestic chick (Gallus gallus) |
Type |
Journal Article |
Year |
2000 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
26 |
Issue |
4 |
Pages |
477-486 |
Keywords |
Animals; Behavior, Animal/physiology; Chickens; Cognition/*physiology; Learning/physiology; Male; Space Perception/*physiology; Spatial Behavior/*physiology |
Abstract |
Chicks learned to find food hidden under sawdust by ground-scratching in the central position of the floor of a closed arena. When tested inan arena of identical shape but a larger area, chicks searched at 2 different locations, one corresponding to the correct distance (i.e., center) in the smaller (training) arena and the other to the actual center of the test arena. When tested in an arena of the same shape but a smaller area, chicks searched in the center of it. These results suggest that chicks are able to encode information on the absolute and relative distance of the food from the walls of the arena. After training in the presence of a landmark located at the center of the arena, animals searched at the center even after the removal of the landmark. Marked changes in the height of the walls of the arena produced some displacement in searching behavior, suggesting that chicks used the angular size of the walls to estimate distances. |
Address |
Department of General Psychology, University of Padua, Italy |
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0097-7403 |
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Conference |
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Notes |
PMID:11056887 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2774 |
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Author |
Boysen, S.T.; Bernston, G.G.; Hannan, M.B.; Cacioppo, J.T. |
Title |
Quantity-based interference and symbolic representations in chimpanzees (Pan troglodytes) |
Type |
Journal Article |
Year |
1996 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
22 |
Issue |
1 |
Pages |
76-86 |
Keywords |
Animals; Behavior, Animal; Cognition; *Discrimination Learning; Female; Male; *Pan troglodytes; *Reinforcement (Psychology); Task Performance and Analysis |
Abstract |
Five chimpanzees with training in counting and numerical skills selected between 2 arrays of different amounts of candy or 2 Arabic numerals. A reversed reinforcement contingency was in effect, in which the selected array was removed and the subject received the nonselected candies (or the number of candies represented by the nonselected Arabic numeral). Animals were unable to maximize reward by selecting the smaller array when candies were used as array elements. When Arabic numerals were substituted for the candy arrays, all animals showed an immediate shift to a more optimal response strategy of selecting the smaller numeral, thereby receiving the larger reward. Results suggest that a response disposition to the high-incentive candy stimuli introduced a powerful interference effect on performance, which was effectively overridden by the use of symbolic representations. |
Address |
Ohio State University, Department of Psychology, Ohio State University, Columbus 43210-1222, USA |
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ISSN |
0097-7403 |
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Notes |
PMID:8568498 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2781 |
Permanent link to this record |