Cell populations of the marine bacterium ANT-300, from
either batch culture or continuous culture with dilution
rates ranging from D = 0.170 h⁻¹ (fast) to D = 0.015 h⁻¹ (slow) were monitored for 98 days under starvation.
Viability (CFU), acridine orange direct counts (AODC), and
optical density were measured. DNA,...
Bacterial cultures enriched from sheep rumen fluid have demonstrated the ability
to detoxify pyrrolizidine alkaloids (seneciphylline and jacobine) in tansy ragwort
(Senecio jacobaea). The microbes are difficult to isolate using classical anaerobic
techniques, therefore, microbes from two different enrichment cultures demonstrating
similar degradation activity were identified using their 16S ribosomal...
The pyrrolizidine alkaloids (PAs) and ergot alkaloids are known natural
toxicants found in livestock forage. These alkaloids contribute to large
economic losses in livestock throughout the world. An understanding of the
mechanisms of toxicity and development of better diagnostic tools for better
management practices was investigated.
Variability exists in the...
The question of how the presence of nucleosomal
packing of DNA modifies carcinogen interaction at
specific sites cannot be answered by studies on whole
chromatin or bulk nucleosomes because of the
heterogeneity of DNA sequences in the particles. This
problem was circumvented by constructing nucleosomes that
are homogenous in DNA-histone...
This thesis outlines dominant ideologies and practices that affect women's
authority in the urban social milieu of north India. Theories that consider the causes
of social stratification by gender as well as social movement patterns are useful for
understanding the durability of gender roles. The utility of these theories for...
Lō`ihi Seamount defines the volcanically active, leading edge in the Hawaiian hotspot chain. It is located on the submarine flank of Mauna Loa, 30 km south of the island of Hawai`i. Lō`ihi’s summit is at 975-m water depth (Pisces Peak), and the seamount has a pronounced southern rift that extends...
Goats were the first livestock species to be domesticated by humans and continue to function as a key source of protein and economic value for many communities. In the sixteenth century, Spanish colonists brought goats to the Americas. Unlike other nations, the United States did not maintain a significant market...
Different models show the effects of environmental decoherence on a quantum system
due to various environments of interest. One important quantity within these models is
the decoherence time, which tells us how quickly environments wash away the coherence of
local measurements. We can describe this effect as the quantum system...