The diverse community of bacteria living within and on host organisms, known as the microbiome, has an important role in maintaining host health. Dysbiosis, known as a change in the healthy community of the microbiome, has been associated with a number of diseases across host organisms and body sites including...
This thesis examines factors limiting understory herb presence and flowering in young second-growth Douglas-fir (Pseudotsuga menziesii) forests on the west side of the Cascade Mountains, Oregon, USA. I studied the belowground effects of canopy trees on understory herbs and shrubs in old-growth forests using trenched plots from which tree roots...
Management of marine ecosystems increasingly demands comprehensive and quantitative assessments of ocean health,
but lacks a tool to do so. We applied the recently developed Ocean Health Index to assess ocean health in the relatively
data-rich US west coast region. The overall region scored 71 out of 100, with sub-regions...
Full Text:
BenjaminS. Halpern1,2,3*., Catherine Longo1., Courtney Scarborough1., Darren Hardy1,9.,
Benjamin D. Best1
Management of marine ecosystems increasingly demands comprehensive and quantitative assessments of ocean health,
but lacks a tool to do so. We applied the recently developed Ocean Health Index to assess ocean health in the relatively
data-rich US west coast region. The overall region scored 71 out of 100, with sub-regions...
Full Text:
the global assessment (Halpern et al. 2012). Additional details can also be found in the
supporting
Natural products have long been an important source of resources for humans. Many of these compounds possess unique chemical structures and potent biological properties. By targeting natural products with specific chemical properties, we can gain a better understanding of the roles these compounds play in the environment and their interactions...
Cyanobacteria represent an underexploited source of bioactive natural products of interest to the pharmaceutical industry. Lack of development of these compounds as drug leads is due mainly to myriad practical problems with the producing strains including long doubling times, genetic intractability, and low compound yields. Previous attempts at heterologous expression...
Toxoflavin, a toxic secondary metabolite produced by a variety of bacteria, has been implicated as a causative agent in food poisoning and a virulence factor in phytopathogenic bacteria. This toxin is produced by the tox operon in Burkholderia glumae, in which the encoded protein, ToxD, was previously characterized as essential...
Purpose of the Study
The purpose of this study was to investigate the relationships
between modern and traditional schools and children's self-concepts.
In order to do this, it was necessary to describe and define the
phenomenon "self-concept" as used in education and to describe what the
author meant by modern...
The response of adjacent structural systems to earthquake motions is investigated using the finite element framework OpenSees. Results of sensitivity analyses demonstrate that structural response quantities can increase in either or both of the adjacent structures for specific configurations. The structural models used include steel moment-resisting frames and rigid shear...
Single nucleotide polymorphisms (SNPs) can be used as markers to infer population genetic structure. For Mycoplasma cynos, a pathogen associated with infectious respiratory disease among canines and other animals, SNPs may help to elucidate ecological and evolutionary relationships among the strains that reside in the upper respiratory tract of canines...