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Now showing items 411-420 of 443
The effects of carbon monoxide and methylene chloride on the canine heart
(1975)
The effects of separate and combined exposures to carbon monoxide (CO) and methylene chloride (CHâ‚‚CIâ‚‚) on the heart and cardiovascular system were studied. Inhalation studies were conducted on two groups of ten conscious ...
An assessment of perceptions of competencies needed by postsecondary vocational-technical teachers in Texas
(1975)
Purpose This study investigates, through a descriptive survey design, the opinions of postsecondary vocational-technical teachers in Texas regarding competencies which have been identified as those needed for effective ...
The effect of fluorine as a substituent on bond dissociation energies
(1975)
The kinetics of the thermal and chemically activated elimination of HF from 1,1,1-trifluoroethane was analyzed resulting in DH₂₉₈₋ (CH₃-CF₃) = 101.2±1.1 kcal mol�¹ and ΔH°[subscript f](CH₃-CF₃,g,298) ...
Morphology, taxonomy, and distribution of selected diatom species of Thalassiosira Cleve in the Gulf of Mexico and antarctic waters
(1975)
Cultures of marine phytoplankton have Increasing value in morphological and taxonomic studies. Fifteen species of Thalassiosira have been studied from culture and field samples in both light and scanning electron microscopes, ...
An experimental investigation of the impact of stated purpose on performance evaluation
(1975)
Teaching performances of two university instructors were evaluated by students in a junior-level management course. The first performance rated was a forty-two-minute, videotaped incident. The second situation involved a ...
Measurements of the three components of the thermomagnetic force
(1975)
The purpose of this investigation was to study the three components of the thermomagnetic force. Since the thermal force study was necessary in order to better understand the behavior of the thermomagnetic force, measurements ...
Inner shell ionization of intermediate- and high-z elements produced by collisions with fast heavy charged particles
(1975)
A review of the theoretical approaches to inner-shell ionization in fast ion-atom collisions has been presented. K x-ray yields have been measured for ten elements ranging from Fe (Z = 26) to Au (Z = 79) using 30-100 MeV ...
The relative effectiveness of two approaches to preparing vocational office education students for employment in office occupations
(1975)
Purpose The purpose of this study was to determine if an approach to the preparation for employment of vocational office education (VOE) students which required completion of laboratory training as preparatory training for ...
Johnson's Dictionary categorized : a selection for eighteenth-century studies
(1975)
While there are a number of conditions which have contributed to the continued neglect of Samuel Johnson's Dictionary of the English Language (1755), perhaps the major one is the sheer magnitude of material to be found in ...
Hydrothermal processes along mid-ocean ridges: an experimental investigation
(1975)
An experimental investigation of high-temperature seawater/basalt interactions has been conducted in order to better evaluate the geochemical and economic implications of hydrothermal circulation of seawater in the oceanic ...