| Records |
| Author |
Graham, M.; Letz, R. |
| Title |
Within-species variation in the development of ultrasonic signaling of preweanling rats |
Type |
Journal Article |
| Year |
1979 |
Publication |
Developmental Psychobiology |
Abbreviated Journal |
Dev Psychobiol |
| Volume |
12 |
Issue |
2 |
Pages |
129-136 |
| Keywords |
Animals; *Animals, Newborn; Animals, Suckling; Body Weight; Cold/adverse effects; Environment; Genotype; Individuality; Object Attachment; Rats; Stress/*physiopathology; Ultrasonics; *Vocalization, Animal |
| Abstract |
The development of litter and individual differences in the rate of ultrasonic signaling of neonatal rats was studied. Systematic variations among litters and individuals emerged, without differential treatment. These differences were not correlated with variations in general development as indexed by body weight. Two experiments using a cross-fostering design showed that litter differences developed independently of variations in postnatal environment. These results indicate that the variations among litters in ultrasound rate have a prenatal, possibly genetic, etiology and may represent reliable indicants of response to environmental stress. |
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| Language |
English |
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| ISSN |
0012-1630 |
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Notes  |
PMID:456751 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4172 |
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| Author |
Nallan, G.B.; Pace, G.M.; McCoy, D.F.; Zentall, T.R. |
| Title |
Temporal parameters of the feature positive effect |
Type |
Journal Article |
| Year |
1979 |
Publication |
The American journal of psychology |
Abbreviated Journal |
Am J Psychol |
| Volume |
92 |
Issue |
4 |
Pages |
703-710 |
| Keywords |
Animals; Columbidae; Conditioning, Operant; *Discrimination Learning; Form Perception; Male; *Time Perception |
| Abstract |
Trial duration and intertrial interval duration were parametrically varied between groups of pigeons exposed to a discrimination involving the presence vs. the absence of a dot. Half the groups received the dot as the positive stimulus (feature positive groups) and half the groups received the dot as the negative stimulus (feature negative groups). Faster learning by the feature positive birds (feature positive effect) was found when the trial duration was short (5 sec) regardless of whether the intertrial interval was short (5 sec) or long (30 sec). No evidence for a feature positive effect was found when the trial duration was long (30 sec) regardless of the length of the intertrial interval (30 sec or 180 sec). The results suggest that short trial duration is a necessary condition for the occurrence of the feature positive effect, and neither intertrial interval nor trial duration/intertrial interval ratio are important for its occurrence. The suggestion that mechanisms underlying the feature positive effect and autoshaping might be similar was not supported by the present experiment since the trial duration/intertrial interval ration parameter appears to play an important role in autoshaping but not the feature positive effect. |
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English |
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Edition |
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| ISSN |
0002-9556 |
ISBN |
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| Notes |
PMID:532834 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
269 |
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| Author |
Ribeiro, H.S.; Larangeira, N.L.; Paiva, F. |
| Title |
[Prevalence of Dictyocaulus arnfieldi (Cobbald, 1884) Railiet & Henry 1907, in Pantaneira breed horses of the region of Pocone, MT] |
Type |
Journal Article |
| Year |
1979 |
Publication |
Arquivos do Instituto Biologico |
Abbreviated Journal |
Arq Inst Biol (Sao Paulo) |
| Volume |
46 |
Issue |
3-4 |
Pages |
107-110 |
| Keywords |
Animals; Brazil; Dictyocaulus/*isolation & purification; Ecology; Female; Horses/*parasitology; Male; Metastrongyloidea/*isolation & purification; Seasons |
| Abstract |
The authors sacrificed fifty-five horses originated from the “Pantanal”, lowlands in the State of Mato Grosso in two different periods, droughty period and flooded and they described for the first time the Dictyocaulus arnfieldi in Mato Grosso. Relationship between droughty and flooded periods proved not to occur. |
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Portuguese |
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Original Title |
Prevalencia de Dictyocaulus arnfieldi (Cobbald, 1884) Railiet & Henry 1907, em cavalos de raca pantaneira da regiao de Pocone, MT |
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| ISSN |
0020-3653 |
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| Notes |
PMID:554599 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2693 |
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| Author |
Turpeinen, O. |
| Title |
Effect of cholesterol-lowering diet on mortality from coronary heart disease and other causes |
Type |
Journal Article |
| Year |
1979 |
Publication |
Circulation |
Abbreviated Journal |
Circulation |
| Volume |
59 |
Issue |
1 |
Pages |
1-7 |
| Keywords |
Coronary Disease/blood/*mortality/prevention & control; Dairy Products; *Dietary Fats; *Fats, Unsaturated; Finland; Humans; Hypercholesterolemia/complications/*diet therapy/mortality; Male; Middle Aged; Neoplasms/mortality |
| Abstract |
International statistics indicate that there is a close correlation between the consumption of saturated fats (dairy fats and meat fats) and the mortality from coronary heart disease (CHD), and this conception has been confirmed by many epidemiological studies. Such studies alone, however, cannot prove the existence of a cause-and-effect relationship between these two variables; dietary intervention trials are needed. The Finnish Mental Hospital Study was such a trial, conducted in two hospitals near Helsinki in 1959--1971. Practically total replacement of dairy fats by vegetable oils in the diets of these hospitals was followed by a substantial reduction in the mortality of men from CHD. Total mortality also appeared to be reduced. As to the causes of death other than CHD, none was significantly influenced by dietary change. This was also true for malignant neoplasms. To alleviate the burden of CHD on public health, many investigators have recommended important changes in the quantity and quality of dietary fats. |
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English |
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0009-7322 |
ISBN |
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| Notes |
PMID:758101 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
33 |
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| Author |
Moehlman Pdr, |
| Title |
Behavior and ecology of feral asses (Equus asinus) Diss Univ of Wisconsin |
Type |
Journal Article |
| Year |
1979 |
Publication |
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Abbreviated Journal |
Nat. Geo. Soc. Res. Rep., |
| Volume |
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Issue |
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Pages |
405-411 |
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Thesis |
Ph.D. thesis |
| Publisher |
Univ of Wisconsin |
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| Notes |
Thesis 1974 |
Approved |
no |
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Serial |
1398 |
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