Correlation Study Of Diffenrential Skin Temperatures (DST) For Ovulation Detection Using Infra-Red Thermography

1982 ◽  
Author(s):  
K.H. S. Rao ◽  
A. v. Shah ◽  
B. Ruedi
Keyword(s):  
Correlation Study ◽  
Ovulation Detection ◽  
Infra Red ◽  
Skin Temperatures

Some aspects of body temperature regulation in sheep

1968 ◽  
Vol 71 (1) ◽  
pp. 61-66 ◽  
Author(s):  
M. E. D. Webster ◽  
K. G. Johnson
Keyword(s):  
Body Temperature ◽  
Surface Area ◽  
Cold Water ◽  
The Body ◽  
Body Temperatures ◽  
Mean Body Temperature ◽  
Merino Sheep ◽  
Infra Red ◽  
Heat Increment ◽  
Skin Temperatures

SummarySkin temperatures, deep body temperatures and respiratory rates have been measured in Southdown and Merino sheep following feeding, and during infra-red irradiation, rumen infusions of hot and cold water, and cold exposure induced by shearing. The increases in respiratory rate and skin temperatures induced by infra-red heating and the heat increment of feeding were reversed by addition of iced water to the rumen and were suppressed by shearing. These responses could not be systematically related to particular body temperatures in the sheep and appeared to be continuously variable rather than ‘all-or-none’ phenomena. Considerable overlap was observed between respiratory and vasomotor mechanisms of thermoregulation. Measurements of the surface area and weight of ears and legs showed that these regions contribute approximately 23% of the surface area and 8% of the body weight in Merino sheep. Calculations suggested that up to 70% of the additional heat produced in the 2 h after feeding in sheep may be stored in the tissues through increase in mean body temperature. Sheep kept in short wool throughout the winter appeared to establish a new thermoregulatory ‘set-point’ associated with lower rectal temperatures than those in sheep with a full fleece.

The significance of the extremities of the ox (Bos taurus) in thermoregulation

1962 ◽  
Vol 58 (1) ◽  
pp. 109-120 ◽  
Author(s):  
G. C. Whittow
Keyword(s):  
Environmental Temperature ◽  
Bos Taurus ◽  
Temperate Climate ◽  
Climate Variations ◽  
Infra Red ◽  
Thermoregulatory Function ◽  
Spontaneous Fluctuations ◽  
Environmental Temperatures ◽  
Skin Temperatures ◽  
Made In

1. Measurements of the temperatures of the extremities, rectal temperatures, respiratory rates and heart rates have been made in calves during exposure at environmental temperatures within the range – 5·0° –45·0° C.2. Large variations in the skin temperatures of the extremities were recorded between environmental temperatures of –5·0° and 25·0° C. At environmental temperatures above 25·0° C. the extremity temperatures and the skin temperatures of the trunk were similar.3. Feeding and localized infra-red irradiation of part of the trunk of the animals resulted in marked increases in the skin temperatures of the unheated extremities.4. Evidence was obtained that the variations in the skin temperatures of the extremities were brought about by changes of blood flow to these parts.5. Respiratory rates varied also with the environmental temperature at which the animals were exposed. When the animals were exposed to localized infra-red irradiation of the trunk the increase in respiratory rate was significantly greater when the extremities were initially warm than when they were cool.6. In addition to spontaneous fluctuations in the skin temperatures of the ears at environmental temperatures of 10·0°–25·0° C, periodic increases in the skin temperatures of the ears were observed in all the calves at an environmental temperature of – 5·0° C. The increase in the skin temperatures of the ears persisted throughout the 7 hr. exposure to an environmental temperature of – 5·0° C.7. It was concluded that, in a temperate climate, variations in the skin temperatures of the extremities of the ox have a thermoregulatory function.

Electron Microscopy of Human Gallstones

1971 ◽  
Vol 29 ◽  
pp. 296-297
Author(s):  
C. Wolpers ◽  
R. Blaschke
Keyword(s):  
Electron Microscopy ◽  
Room Temperature ◽  
Bile Pigment ◽  
X Ray Diffraction ◽  
Triclinic Crystal System ◽  
X Ray ◽  
Follow Up Study ◽  
Infra Red ◽  
Main Components

Scanning microscopy was used to study the surface of human gallstones and the surface of fractures. The specimens were obtained by operation, washed with water, dried at room temperature and shadowcasted with carbon and aluminum. Most of the specimens belong to patients from a series of X-ray follow-up study, examined during the last twenty years. So it was possible to evaluate approximately the age of these gallstones and to get information on the intensity of growing and solving.Cholesterol, a group of bile pigment substances and different salts of calcium, are the main components of human gallstones. By X-ray diffraction technique, infra-red spectroscopy and by chemical analysis it was demonstrated that all three components can be found in any gallstone. In the presence of water cholesterol crystallizes in pane-like plates of the triclinic crystal system.

The infra-red spectra of B-chloro- and B-bromoborazoles

1962 ◽  
Vol 18 (4) ◽  
pp. 1487-1497 ◽  
Author(s):  
I BUTCHER ◽  
W GERRARD ◽  
E MOONEY ◽  
R ROTHENBURY ◽  
H WILLIS
Keyword(s):  
Infra Red

Photon correlation study of spermatozoa motility

1979 ◽  
Vol 40 (11) ◽  
pp. 1085-1088 ◽  
Author(s):  
B. Herpigny ◽  
J.-P. Boon
Keyword(s):  
Correlation Study ◽  
Photon Correlation ◽  
Spermatozoa Motility
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