Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
-
- Utah (3)
- Vitamin B1 (2)
- Amino acids (1)
- Ascomycetes (1)
- Effect of temperature on; Plant ecology; Soil Physics (1)
-
- Enzymes (1)
- Fleas (1)
- Gilmania; Gilia (1)
- Manning Canyon (Utah); Paleobotany (1)
- Plants (1)
- Rats (1)
- Research; Strawberry Valley (Wasatch County (1)
- Tularemia; Flies; Utah Lake (Utah) (1)
- United States; Larvae (1)
- Utah); Natural resources (1)
- Utah; Basidiomycetes (1)
- Utah; Botany (1)
- Utah; Natural resources (1)
- Zoology (1)
Articles 1 - 9 of 9
Full-Text Articles in Life Sciences
Summer Soil And Air Temperatures In Four Plant Communities, Paul W. Conrad
Summer Soil And Air Temperatures In Four Plant Communities, Paul W. Conrad
Theses and Dissertations
Temperature, one of the most influential factors controlling the growth and distribution of plants, was measured during a three month summer period within several stands of vegetation. The stands represented four distinct plant communities: sagebrush-grass, mountain brush, aspen, and conifer. Measurements were obtained by a sucrose inversion method which gave exponential average or effective mean temperature (eT) values. Registerants, small glass vials filled with a sucrose-buffer solution, were placed in the air 10 decimeters above the ground level and in the soil 1, 5, and 10 decimeters below the ground level. The sites were carefully described with respect to plant …
A Microscopic Study Of An Early Pennsylvanian Flora From The Manning Canyon Shale, Utah, Max W. Blaylock
A Microscopic Study Of An Early Pennsylvanian Flora From The Manning Canyon Shale, Utah, Max W. Blaylock
Theses and Dissertations
The Manning Canyon Shale on the eastern slope of Lake Mountain in Utah County, Utah contains an Early Pennsylvanian flora within its upper shales. Many of these fossils appear to be new species. A microscopic study of the tissue remains can be of value in the further classification of these fossils. Selected fossils were macerated in hydrofluoric acid, and the residues were examined microscopically for tissue remains. Objects identified as fossil tissue remains were found in twenty five of the forty-eight specimens examined. Fibers, fiber tracheids, tracheids, and spores were isolated from fossils identified as Calamites. The spores were possibly …
A Phytosociological Study Of Coprophilous Ascomycete And Basidiomycete Communities From Santaquin Canyon, Utah, A. Clyde Blauer
A Phytosociological Study Of Coprophilous Ascomycete And Basidiomycete Communities From Santaquin Canyon, Utah, A. Clyde Blauer
Theses and Dissertations
Numerous reports have been published on the taxonomy and distribution of the coprophilous Ascomycetes and Basidiomycetes. No known quantitative work has been done, however, on the succession and structure of the communities formed by these higher fungi. This research was undertaken to study those two phases of the ascomycete and basidiomycete communities which grow and fruit on cow dung collected from Santaquin Canyon, Utah.
The Role Of Thiamine Pyrophosphate In Regulating The Level Of Gamma-Aminobutyric Acid In The Central Nervous System, Bryant L. Adams
The Role Of Thiamine Pyrophosphate In Regulating The Level Of Gamma-Aminobutyric Acid In The Central Nervous System, Bryant L. Adams
Theses and Dissertations
The level of gamma-aminobutyric acid in the brains of white rats suffering from thiamine deficiency symptoms resulting from pyrithiamine or oxythiamine antagonism of thiamine or from thiamine deprivation was measured. The level of this amino acid was 17.5% lower in the brains of pyrithiamine-treated rats and 20.0% lower in the brains of thiamine-deprived rats than in the control rats. Daily injections of ten times the required amounts of vitamin B6 in rats treated with pyrithiamine or oxythiamine or by thiamine deprivation had no effect on the level of brain gamma-aminobutyric acid or on the psiological behavior of these rats. The …
Mammal Populations And Their Effects On Red Elderberry In The Mud Creek Sheep Allotment, Stawberry Valley, Utah, Howard Duane Smith
Mammal Populations And Their Effects On Red Elderberry In The Mud Creek Sheep Allotment, Stawberry Valley, Utah, Howard Duane Smith
Theses and Dissertations
The purpose of this study has been to determine : (1) the mammalian species present in the Mud Creek area; (2) the approximate population density of each trappable species; (3) the species responsible for the damage; (4) the stem density and frequency of Smbucus racemosa; and (5) the approximate extent of damage to the red elderberry stems.
Revision Of Gilia (Polemoniaceae) Section Gilmania, M. Eileen Matthews
Revision Of Gilia (Polemoniaceae) Section Gilmania, M. Eileen Matthews
Theses and Dissertations
The results of this study show that section Gilmania (genus Gilia) consists of only two species G. latifolia and G. ripleyi, which are well separated from the rest of the members of genus Gilia by their simple, aristately toothed, obovate to orbicular leaf blades, many, small, brilliant rose, salverform corollas, basally inserted, stout-filamented stamens, and 30 to 100 small, reddish-brown, oval seeds per locule.
Studies Of Rat Brain Thiamine Pyrophosphokinase, Lavell Rolfson Johnson
Studies Of Rat Brain Thiamine Pyrophosphokinase, Lavell Rolfson Johnson
Theses and Dissertations
The enzyme ATP:thiamine pyrophosphotransferase (thiamine pyrophosphokinaseJ was purified from acetone powders which were prepared from rat brains up to the chromatography on alumina C_γ step by a modified procedure that Mano (Y. Mano, J. Biochem., 42, 283 (1960)] developed for the purification of the rat liver thiamine pyrophosphokinase. The enzyme was purified 12 fold over that in the original extract of the acetone powder. A spectrophotometric assay for the brain thiamine pyrophosphokinase was developed utilizing brewer's yeast apotransketolase. The transketolase assay was able to detect less than 10^-11 moles of thiamine diphosphate, which was synthesized by the kinase, in the …
Identification Of The Adults, Nymphs, And Larvae Of Ticks Of The Genus Dermacentor Koch (Ixodidae) In The Western United States, Elias P. Brinton
Identification Of The Adults, Nymphs, And Larvae Of Ticks Of The Genus Dermacentor Koch (Ixodidae) In The Western United States, Elias P. Brinton
Theses and Dissertations
In 1910 C. W. Stiles made the following comment as a part of a summary statement to his extensive study of the stigmatal plates of Dermaeentor ticks: "The specific determination of ticks is attended in many cases with con-siderable difficulty."
Tularemia And Deer Flies In The Environs Of Utah Lake, Utah, Kaye B. Cox
Tularemia And Deer Flies In The Environs Of Utah Lake, Utah, Kaye B. Cox
Theses and Dissertations
Deer flies have been implicated as mechanical veotors of tularemia in Utah. Although infected flies heretofore have not been tound in nature, there is little doubt of their importance in transmitting tularemia to man. Two species present in this area, Chrysops discalis Williston and Chrysops noctifer Osten Sacken, have been shown experimentally to transmit the disease. The presence of deer flies in the environs of Utah Lake where tularemia is endemic oftera a potential health threat to man, and the expanding human population and development ot recreational facilities adjacent to the lake inorease this potential. Despite the taot that deer …