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Now showing items 2671-2680 of 2804
The effects of chronic whole-body irradiation on the reproduction of C-57 black mice
(1961)
One thousand C -57 black mice were exposed to chronic continuous radiation from a Co⁶⁰ source. The dose rates employed were 0, 2, 5, 10 and 20r per day (23 hours), for total accumulated doses of 0, 60, 120, 240, 480 and ...
Chilling injury in okra (Hibiscus esculentus L.) and the relationship of chilling to nitrogen, amino acids, proteins and nucleic acids
(1969)
The effect of low temperature at two relative humidities on the development of okra plants and changes in total and soluble nitrogen, free amino acids and proteins were studied. The levels of RNA and the rates of RNA and ...
The effect of intra-arterial hydrogen peroxide on the healing of standardized ischemic lesions in rabbits
(1969)
The effect of the intra-arterial infusion of dilute hydrogen peroxide on the healing rates of ischemic lesions was investigated based on the proposal that an increased healing rate could be achieved through the alleviation ...
Genetic and environmental trends of growth and production in experimental herds under humid tropical conditions in Costa Rica
(1968)
Data for these analyses were taken from Dairy herds of the Department of Animal Industries, Tropical Center of the Inter-American Institute of Agricultural Sciences, Turrialba, Costa Rica. The maximum annual ranges in ...
Correlation of teacher attitudes with learning among selected disadvantaged elementary students
(1969)
Purpose of the Study: The study was concerned with the investigation of teacher attitudes toward disadvantaged pupils in an Elementary and Secondary Education Act Title I Project in San Antonio, Texas. Procedures: Six ...
Factors affecting the educational and career choices of agricultural education graduates at Texas A & M University, 1960-1964
(1969)
Purpose [line break] The purposes of this investigation were to (1) obtain information concerning the careers of graduates of the Department of Agricultural Education at Texas A&M University to the end that bases could be ...
Ecological and phenological characteristics of perennial broomweed
(1969)
Phenological and ecological characteristics of perennial broom-weed (Xanthocephalum sarothrae (Pursh) Shinners and X. microcephalum (DC.) Shinners), species toxic to livestock, were investigated at six locations in western ...
An analysis of the radiation characteristics of asymmetrically-driven thin linear antennas
(1969)
A study is made of the radiation characteristics of the thin, linear antenna of arbitrary length and driving-point location. A compact algebraic expression for the radiation field of this antenna is found, a special case ...