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Comparative Ultrastructural Study between Young and Adult forms of Trypanosoma Lewisi (open access)

Comparative Ultrastructural Study between Young and Adult forms of Trypanosoma Lewisi

The purpose of this study was to examine the ultrastructure of both young (dividing form) and adult (stationary form) of Trypanosoma lewisi. Changes observed between the two forms of the organism were related directly to data obtained from previous comparative biochemical studies conducted on these forms of Trypanosoma lewisi.
Date: August 1973
Creator: Abdul-Salam, Jasem M.
System: The UNT Digital Library
Chronic Acceleration and Osteogenesis (open access)

Chronic Acceleration and Osteogenesis

The effect of excess gravity on bone-forming elements of the growing perichondrial shaft of embryonic chicks was investigated through the use of the transmission electron microscope and various cytochemical techniques.
Date: August 1973
Creator: Borgens, Richard Ben
System: The UNT Digital Library
Drift of Aquatic Insects in the Brazos River, Texas (open access)

Drift of Aquatic Insects in the Brazos River, Texas

The objective of this study was to elucidate the nature and extent of drift by the aquatic insect populations of the Brazos River, Texas.
Date: August 1973
Creator: Cloud, Thomas J.
System: The UNT Digital Library
A Multiphasic Study of the Interaction Between the Branchiobdellid Cambarincola Vitrea and its Crayfish Host Procambarus Simulans (open access)

A Multiphasic Study of the Interaction Between the Branchiobdellid Cambarincola Vitrea and its Crayfish Host Procambarus Simulans

The host-parasite interface between the branchiobdellid Cambarincola vitrea Ellis and its crayfish host is investigated along ecological, ultrastructural, serological, and endocrinological lines of evidence. Monthly analysis of a natural branchiobdellid from a vernal habitat demonstrates the annelid to be particularly sensitive to changes involving both the physical habitat as well as the host crayfish.
Date: August 1973
Creator: Koepp, Stephen John
System: The UNT Digital Library
Studies of Selected Cyanophyte Response to Varying Geosmin Concentrations (open access)

Studies of Selected Cyanophyte Response to Varying Geosmin Concentrations

The purpose of this investigation is to determine the effect of varying geosmin concentrations on the growth of selected cyanophytes which did not produce a notable odor in culture.
Date: May 1973
Creator: Richey, Harvey M., III
System: The UNT Digital Library
Isolation and Partial Characterization of a Bacterium Which Gives Off Filtrable Cells (open access)

Isolation and Partial Characterization of a Bacterium Which Gives Off Filtrable Cells

The present study was on the isolation of a bacterium capable of producing filtrable forms which passed through the 0.45ยต filter membrane and regenerated the parental form; the testing of the true filtrability of the isolate; the relationship between growth of the isolate and appearance of filtrability; partial characterization of the isolate and visualization of the elements that passed through the membrane filter with electron microscopy and shadow casting technique.
Date: May 1973
Creator: Siu, Henry H. W.
System: The UNT Digital Library
Primary Productivity and Nutrient Relationships in Garza-Little Elm Reservoir (open access)

Primary Productivity and Nutrient Relationships in Garza-Little Elm Reservoir

A large, multi-basin, reservoir (Garza-Little Elm Reservoir) in north central Texas was studied to determine the relative effects of various parameters on primary productivity. The basins were impounded several years apart,thus allowing the influence of age on water chemistry and biota to be considered. Another principal influence on water quality was secondary sewage effluent that entered one basin from a nearby source.
Date: May 1973
Creator: Smith, Jerry Allen
System: The UNT Digital Library
Location of the Carotenoid Pigments of Corynebacterium Species Strain 7E1C (open access)

Location of the Carotenoid Pigments of Corynebacterium Species Strain 7E1C

The purpose of this investigation was to determine the site of the carotenoid pigments in C. spp. strain 7E1C as a step towards resolving the role of the pigment in the cell.
Date: August 1973
Creator: Wilkinson, Joanne C.
System: The UNT Digital Library