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Articles 2131 - 2160 of 2283

Full-Text Articles in Physiology

Front Matter, Vol. 12 No. 1 Oct 1970

Front Matter, Vol. 12 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


End Matter, Vol. 11 No. 4 Oct 1970

End Matter, Vol. 11 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Mites And Lice Of The National Reactor Testing Station, Dorald M. Allred Oct 1970

Mites And Lice Of The National Reactor Testing Station, Dorald M. Allred

Brigham Young University Science Bulletin, Biological Series

Mites of 47 species and lice of 16 species were taken from reptiles of 3 species, birds of 23 species, and mammals of 18 species at the National Reactor Testing Station between June, 1966, and September, 1967. Mammals differed in degree of infestation relative to their geographic distribution at the station. The number of species of ectoparasites which occurred on a particular kind of host generally was in direct proportion to the number of hosts examined, but exceptions occurred in some instances. In some cases the rate of infestation differed relative to the sex of the host. The greatest numbers …


End Matter, Vol. 11 No. 3 Sep 1970

End Matter, Vol. 11 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Distribution Of The Native Trees Of Utah, Kimball S. Erdman Sep 1970

Distribution Of The Native Trees Of Utah, Kimball S. Erdman

Brigham Young University Science Bulletin, Biological Series

Although botanists have been actively collecting in Utah for well over a century, the distribution of many plants are as yet imperfectly known. This is, in part, due to the scattered nature of Utah herbarium material. Also the terrain of the state has impeded collection in more rugged and remote areas. The present study gathers together the data from the major collections of native Utah trees and clarifies our present understanding of tree distributions in the state. The older collection records have been extensively supplemented by the field work of the author and other botanists.

The great diversity of environments …


Front Matter, Vol. 11 No. 3 Sep 1970

Front Matter, Vol. 11 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Osteological And Mylogical Comparisons Of The Head And Thorax Regions Of Cnemidophorus Tigris Septentrionalis Burger And Ameiva Undulata Parva Barbour And Nobel (Family Teiidae), Don Lowell Fisher, Wilmer W. Tanner Jun 1970

Osteological And Mylogical Comparisons Of The Head And Thorax Regions Of Cnemidophorus Tigris Septentrionalis Burger And Ameiva Undulata Parva Barbour And Nobel (Family Teiidae), Don Lowell Fisher, Wilmer W. Tanner

Brigham Young University Science Bulletin, Biological Series

The anterior osteological elements of the skull, lower jaw, and wrist along with the anterior myological characters discussed and figured in this report suggest that A. u. parva and C. t. septentrionalis are members of distinct groups which can be differentiated by internal morphologic characters. Although comparisons were restricted to highly geographically separated individuals of the same family, their general body form and structure appear to be similar.

A great number of anatomical structures are shared in common, but the significant differences between them include:

1. General skull appearance. The skull of C. is generally lighter, that is the bones …


Pinyon-Juniper Succession After Natural Fires On Residual Soils Of Mesa Verde, Colorado, James A. Erdman Jun 1970

Pinyon-Juniper Succession After Natural Fires On Residual Soils Of Mesa Verde, Colorado, James A. Erdman

Brigham Young University Science Bulletin, Biological Series

A mountain brush vegetation typified by Gambel oak (Quercus gambelii) and serviceberry (Amelanchier utahensis) dominates the uplands of Mesa Verde National Park. There is evidence that this brush element is a successional stage that has been maintained by repeated natural fires in a large part of the Mesa Verde landscape. This study was conducted to determine the role of fire in the region's ecology, the nature of the climax pinyon pine (Pinus edulis) and Utah juniper (Juniperus osteosperma) vegetation, and the major successional stages that lead to the climax condition.

Three postburn …


End Matter, Vol. 11 No. 2 Jun 1970

End Matter, Vol. 11 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Front Matter, Vol. 11 No. 2 Jun 1970

Front Matter, Vol. 11 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


End Matter, Vol. 11 No. 1 Jun 1970

End Matter, Vol. 11 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Front Matter, Vol. 11 No. 1 Jun 1970

Front Matter, Vol. 11 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Maintaining Ewe Bodyweight For A Late Mating, T Marshall Jan 1970

Maintaining Ewe Bodyweight For A Late Mating, T Marshall

Journal of the Department of Agriculture, Western Australia, Series 4

DEPARTMENT OF AGRICULTURE experiments have indicated that the bodyweight of ewes at mating can have a large bearing on lambing performance.

It appears that for every 10 lb. increase in pre-mating bodyweight, an increase of some 3 to 6 per cent, lambs born could be expected, depending on the lambing time.


The Role Of The Suprapharyngeal Ganglia Of Lumbricus Terrestris In Respiratory Metabolism, John D. Nelson Dec 1969

The Role Of The Suprapharyngeal Ganglia Of Lumbricus Terrestris In Respiratory Metabolism, John D. Nelson

Masters Theses

No abstract provided.


Front Matter, Vol. 10 No. 4 Oct 1969

Front Matter, Vol. 10 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


End Matter, Vol. 10 No. 4 Oct 1969

End Matter, Vol. 10 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Nesting Ecology Of Raptorial Birds In Central Utah, Joseph R. Murphy, Franz J. Camenzind, Dwight G. Smith, J. Bradford Weston Oct 1969

Nesting Ecology Of Raptorial Birds In Central Utah, Joseph R. Murphy, Franz J. Camenzind, Dwight G. Smith, J. Bradford Weston

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Kinetic Studies Of The Cell Elongation Phenomenon In Etiolated Pisum Stem Segments, Grant M. Barkley Aug 1969

Kinetic Studies Of The Cell Elongation Phenomenon In Etiolated Pisum Stem Segments, Grant M. Barkley

Masters Theses

The short-term growth response of etiolated pea stem segments (Pisum sativum L., var. Alaska) was investigated using a high-resolution growth recording device. The immediate effect of treatment with indoleacetic acid (IAA) is an inhibition of growth. This inhibition lasts about 10 minutes and then the rate of elongation rises abruptly to a new steady rate about 4 times the rate of elongation before auxin treatment. This rapid steady rate of elongation, however, continues for only about 22 minutes before declining suddenly to a lower steady rate of growth about 2 times the rate of elongation before the addition of auxin. …


The Effect Of Exercise On Metabolic Rate With Time In Overweight And Normal Weight Subjects, Roberta Jewell Keswick Aug 1969

The Effect Of Exercise On Metabolic Rate With Time In Overweight And Normal Weight Subjects, Roberta Jewell Keswick

Loma Linda University Electronic Theses, Dissertations & Projects

Previous studies in the Lome Linda University laboratory showed that obese subjects on an exercise program lost approximately one pound more per week as compared to a non-exercise group. Energy expenditure calculations of the exercise did not account for the total caloric deficit required to lose the additional pound. The present study was designed to investigate changes in BMR and metabolic rate with time for normal weight and overweight subjects involved in a practical exercise program. The relationship of changes in BMR and metabolic rate in coping with the problems of obesity were also studied.

Fifteen subjects, eight overweight and …


New Records And Species Of Neotropical Bark Beetles (Scolytidae: Coleoptera), Stephen L. Wood Jun 1969

New Records And Species Of Neotropical Bark Beetles (Scolytidae: Coleoptera), Stephen L. Wood

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Front Matter, Vol. 10 No. 3 Jun 1969

Front Matter, Vol. 10 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


End Matter, Vol. 10 No. 3 Jun 1969

End Matter, Vol. 10 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


End Matter, Vol. 10 No. 2 Jun 1969

End Matter, Vol. 10 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Front Matter, Vol. 10 No. 2 Jun 1969

Front Matter, Vol. 10 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


A Study Of The Weevil Tribe Celeuthetini Of The Solomon Islands (Coleoptera: Curculionidae), Vasco M. Tanner Jun 1969

A Study Of The Weevil Tribe Celeuthetini Of The Solomon Islands (Coleoptera: Curculionidae), Vasco M. Tanner

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


End Matter, Vol. 9 No. 4 Jun 1968

End Matter, Vol. 9 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Osteology And Myology Of Phrynosoma P. Platyrhinos Girard And Phrynosoma D. Hernandesi Girard, Richard L. Jenkins, Wilmer W. Tanner Jun 1968

Osteology And Myology Of Phrynosoma P. Platyrhinos Girard And Phrynosoma D. Hernandesi Girard, Richard L. Jenkins, Wilmer W. Tanner

Brigham Young University Science Bulletin, Biological Series

This study confirms the work of Etheridge (1964) in suggesting the peculiarity of the genus Phrynosoma within the family Iguanidae. The anterior osteology and myology of Phrynosoma platyrhinos platyrhinos Girard and Phrynosoma douglassi hernandesi Girard indicate Phrynosoma to be highly specialized and to differ significantlv from the Iguanid structure as portrayed by Oelrich (1956), Robison and Tanner (1962), and Avery and Tanner (1964). They also differ because of: ( 1 ) absence of lacrimal and postfrontal bones; (2) occurrence of occipital (also mandibular and temporal) spines; (3) posterodorsal shift of the skull elements; (4) divided nature of the M. sternohyoideus, …


Front Matter, Vol. 10 No. 1 Jun 1968

Front Matter, Vol. 10 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Front Matter, Vol. 9 No. 4 Jun 1968

Front Matter, Vol. 9 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


End Matter, Vol. 10 No. 1 Jun 1968

End Matter, Vol. 10 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.