Assessing the risk from exposure to a chemical mixture in the environment can seem prohibitively challenging. Most components of the mixture are not readily identifiable, chemicals may interact to cause other-than-additive toxicity, and the number of potential combinations of environmental contaminants is enormous. These challenges can make it seem impossible...
Post-secondary education institutions across the United States are increasingly allocating resources to promote international education exchange programs as a pedagogical praxis to develop students into global citizens. Underlying such notions of global citizenship is the assumption that students will also develop a stronger post-national or cosmopolitan identity as a result...
Cancer is one of the leading causes of death in the U.S., and new approaches to control cancer are constantly sought. This dissertation is comprised of two parts: (i) improving the uptake and retention of gadolinium in tumors for potential gadoliniumneutron capture therapy (Gd-NCT) and (ii) integration of gemcitabine or...
The thrust of this thesis is to study oral solid dosage formulation using hot melt coating method and to use pharmacokinetic modeling and simulation (PK M&S) as a tool that can help to predict pharmacokinetics of a drug in human and the probability of passing various bioequivalence criteria of the...
This case study describes and analyzes the experiences of Mt. Hood Community
College (MHCC) in its implementation of four retention interventions. Each of the four
interventions are described in detail. Discussion is framed within the context that retention
is a by-product of institutional renewal brought about by implementing interventions that...
The Brassicaceae, Mustard Family, is a well marked natural
family, whose tetramerous flowers, tetradynamous stamens, and
distinctive bi- carpellary fruits, clearly distinguish it from related
families. It is a large family of some 3, 000 recognized species and
over 300 genera. Although numerous attempts have been made over
the past...
Managing wildlands to protect species and ecosystem services in response to climate change is challenging. To develop effective long-term strategies, natural resource managers need to account for the projected effects of climate change as well as the uncertainty inherent in those projections. Vegetation models are one important source of projected...
Organismal tolerance to abiotic environmental stresses contributes significantly to setting the distribution limits of organisms, as demonstrated by vertical zonation patterns in the marine intertidal zone. In this thesis, the ultimate (evolutionary) and proximate (mechanistic) causes of tolerance to temperature and emersion stresses associated with the intertidal zone were examined...
Extended orientation courses have been shown to be a
valuable means of increasing student retention. However,
little is known about the extent of their use, their form,
their organization or their content. The purpose of this
study was to determine what is being done in today's two-year
college extended orientation...
Using techniques that permit the direct observation of
fetuses in vivo, prenatal behavioral development was
compared among four species in the rodent family Muridae:
the Norway rat (Rattus norvegicus), Mongolian gerbil
(Meriones unguiculatus), cotton rat (Sigmodon hispidus), and
spiny mouse (Acomys cahirinus). Rattus and Meriones bear
altricial offspring, as do...