Exciton-polaritons are a form of light-matter coupling that have potential applications as photonic transistors and logic gates. In order for a photonic transistor or logic gate to be integrated with room temperature fiber-optic technology, excitons-polaritons need to be stable at room temperature and compatible with the red and near-infrared wavelengths...
Hume’s division of truth into agreement with matters of fact or relations of ideas casts doubt on our capacity to have moral knowledge, as moral propositions do not seem to fall obviously into either category. This thesis looks at how two views, ‘descriptive moral functionalism’ and ‘moral concept essentialism’, try...
Sections of the landscape in north central Oregon are
dominated by numerous soil mounds surrounded by stone rings. Mounds
vary in size and shape depending on slope and mound density. Internal
soil mass is free of stones to the bedrock level and is covered
by successive layers of volcanic ash....
The purpose of this study is to determine if the
ntoraines damming proglacial Carver Lake are ice-cored.
The methodology to be employed consists of interpretation
of aerial photographs and field observations. The results
of these studies will be compared. to past research of
known ice-cored moraines in other regions of...
Amphibians are experiencing global population declines and are one of the most threatened groups of vertebrates. This can be attributed to multiple environmental stressors such as habitat loss, disease, invasive species, and climate change. For vocal amphibian species, loss of acoustic habitat due to anthropogenic noise may be yet another...
A novel mode of shallow aquifer management could increase the volumetric potential and distribution of underground, freshwater storage: Shallow aquifer storage and recovery (SASR). In this mode, water is efficiently stored in basin fill aquifers with strong hydraulic connection to surface water. Regional numerical modeling can provide a linkage between...
Uptake and cycling of nitrogen (N) in mature trees are not well understood.
Fertilizer-N uptake, partitioning, and use-efficiency were studied in standard strain
'Topred Delicious' and spur strain 'Redspur Delicious' mature apple trees {Malus
domestica Borck) on 'Malling 7A' (M.7A) rootstocks. The treatments consisted of a
ground application in spring,...
The Lawrence Memorial Grassland Preserve, located in
Wasco County, Oregon, exhibits a wide variety of soil mounds and
patterned ground features. The size, shape, and distribution of
several elements of this peculiar landscape were analyzed with a
detailed map, field observations, and statistical procedures.
Common soil mound shapes are circular,...
The experiments in this thesis are reported as two journal
articles. The first article. The effect of rootstock and scion on
above- and below-graft leaf mineral nutrient content of sweet cherry,
is a field sampling experiment dealing with the effect of Stockton-
Morello and F 12-1 mazzard rootstocks on 'Royal...
There are two major problems associated with soil acidity and
lime response investigations:
A. Determining how much lime (100% "available" CaCO₃ equivalent)
is required to raise a soil pH (or degree of acidity) from its
existing level to a specified level - presumably where need for
lime is eliminated.
B....