This dissertation presents a detailed study of many aspects of the Horizontal Branch (HB) phase of stellar evolution. A classical technique of stellar structure analysis is summarized, and applied to Zero-Age Horizontal ...

Five new genes apparently involved in the metabolism of cell wall peptidoglycan by Escherichia coli are described. One of these, designated murH, was mapped at 99 min on the E. coli linkage map. The murH1 mutant exhibited ...

The existence of the reactive intermediate trans-10b,10c-dimethyl-10b,10c-dihydropyr-1-yne, 57, generated via dehydrobromination, was proved by trapping with N,N-diethyl-1,3-butadienylamine, furan and a series of isoannelated ...

The plasma jet, a commonly used ignition device, has been investigated as a source of acoustic energy suitable for sub-bottom profiling. Named the plasma gun, the device discharges electrical energy in a cylindrical arc ...

Six ribosomal protein genes from the sulfur dependent extreme thermophilic archaebacterium Sulfolobus solfataricus were cloned and sequenced. Four of these genes code for proteins that are equivalent to ribosomal proteins ...

Generalist predators are typically considered to eat foods in proportion to their availability. I show that striped skunks, archtypal generalists, do not just eat foods as available, do not even just select for foods, but ...

Concern about potential losses of biological diversity and productivity following clear-cut logging of old-growth forests in British Columbia led me to compare ectomycorrhizas in old-growth and mature stands of Douglas-fir. Two ...

Protein N-glycosylation, which is ubiquitous in eukaryotes, is a complex pathway involving numerous gene families. Early stages of the glycosylation pathway show a high degree of conservation among eukaryotes, yet ...

The photochemical generation of several novel quinone methide-type intermediates has been observed upon photolysis of pyridoxine (150-Vitamin B₆) and its derivatives 151 and 152, hydroxybiphenyl alkenes 153 and 154, and ...

This review summarizes our current state of knowledge regarding the potential biological effects of mercury (Hg) exposure on fish and wildlife in the Canadian Arctic. Although Hg in most freshwater fish from northern Canada ...