Changes in the diode characteristics of three different
types of diodes were studied. These were point-contact, bonded and zinc-diffused diodes. The parameters
in which measurable changes were observed were the forward
resistance, the reverse breakdown voltage, the
forward "knee" of the diode curve and the constant of
proportionality relating the...
The properties of flash- evaporated films of GaAs
and GaP were studied in this investigation. Films were
grown at various substrate temperatures, source temperatures,
source-to-substrate distances and rates of deposition
and were evaluated as to their structural,
optical and electric properties.
It was found that substrate temperature was the
major...
The interaction of polylysine with DNA may be divided into two
separate phenomena: the primary interaction involved in formation of
a well-defined complex, and secondary interactions leading to aggregation
of these complexes. Most studies on the interaction of polylysine
with DNA have used techniques which measure properties of
the aggregated...
A fluorescent dye, 1-dimethylaminonaphthalene-5-sulfonyl
chloride (dansyl chloride), was covalently bonded to polylysine. The
dansyl tagged polylysine was complexed to DNA by gradient dialysis.
The polarization and intensity of fluorescence of the dansyl and the
turbidity of the complex were measured as a function of salt concentration
for a variety of...
The reactions of aldehydes with proteins are of nutritional and
physiological significance. The nutritive value of food materials can
be impaired by a reaction necessitating additional dietary protein,
and enzymes have been shown in vitro to be inhibited by reactions
with aldehydes.
Aldehydes present may arise from the autoxidation of...
Starch is a significant component of the human diet and the glucose produced through its digestion provides a critical source of energy. When starch enters the mouth, salivary α-amylase hydrolyzes it into maltooligosaccharides (MOS, degree of polymerization [DP] 3-20) and maltopolysaccharides (MPS, DP >20). Previous studies have found that humans...
Oregon's estuaries are important ecosystems for scientific study. Consequently, knowledge of what research has been conducted helps us identify benchmarks and plan new projects. A comprehensive bibliography of published research, technical reports, local documents, and data sets is one means of recording this knowledge. For these reasons, the Guin Library...
Watermelon (Citrullus lanatus) is rich in lycopene and citrulline and has high phenolic content and antioxidant capacity. Previous studies demonstrate the health benefits of watermelon intake on improved blood pressure regulation along with others. Similarly, cherries, raspberries, walnuts and green tea are rich in anthocyanins, polyphenols, and polyunsaturated fatty acids...
Hatchery-reared salmonid fish routinely encounter stress due to
handling, barging, tagging, and overcrowding. It has been demonstrated that
there exists a direct correlation between stress and transient immune
suppression which can last for many days in fish. Epizootic viral infections
routinely appear in hatcheries and can have a devastating effect...
The need for less toxic quantum dots (QDs) has led to a significant number of investigations related to copper indium sulfide (CIS) QDs. Lower toxicity and broad band absorbance width makes CIS QDs appealing for light emitting diodes (LEDs), lasers, sensors, bio-imaging, solar cells, and computing. The optical and electronic...
Oregon's estuaries are important ecosystems for scientific study. Consequently, knowledge of what research has been conducted helps us identify benchmarks and plan new projects. A comprehensive bibliography of published research, technical reports, local documents, and data sets is one means of recording this knowledge. For these reasons, the Guin Library...
Microbial ecology has been transformed by metagenomics, the study of the genetic in-formation in entire communities of organisms. In the following we develop metagenomic tools arising from the classic Wasserstein metric as applied to questions regarding the diversity between microbial communities. We provide a novel proof of the characteriza-tion of...
Oregon's estuaries are important ecosystems for scientific study. Consequently, knowledge of what research has been conducted helps us identify benchmarks and plan new projects. A comprehensive bibliography of published research, technical reports, local documents, and data sets is one means of recording this knowledge. For these reasons, the Guin Library...
Near-surface advanced argillic hydrothermal alteration zones, also referred to as lithocaps, are characterized by quartz, alunite, clays (pyrophyllite and kaolinite group minerals), and minor F-bearing aluminosilicates (i.e., topaz, zunyite, diaspore, and APS) that form where water-, SO2-, and HF-rich gas condenses into shallow groundwater, acidifies, and reacts with rocks. The...
This thesis examines the cultural context in which Japanese children are constructing their
own perspective of the environment because in the development of environmental education in
Japan, the perspectives of children and teachers have not been taken into consideration. Although
educators have made efforts to give direction to environmental education,...
Oregon's estuaries are important ecosystems for scientific study. Consequently, knowledge of what research has been conducted helps us identify benchmarks and plan new projects. A comprehensive bibliography of published research, technical reports, local documents, and data sets is one means of recording this knowledge. For these reasons, the Guin Library...
This research analyzes the relations of ethnic refugee communities and particularly their
businesses to gentrification and community vitality in a neighborhood in Portland,
Oregon. The data indicates that gentrification is not a linear process of displacement of
African Americans by Whites seeking affordable housing and new frontiers, but rather is...
Oregon's estuaries are important ecosystems for scientific study. Consequently, knowledge of what research has been conducted helps us identify benchmarks and plan new projects. A comprehensive bibliography of published research, technical reports, local documents, and data sets is one means of recording this knowledge. For these reasons, the Guin Library...
Xanthohumol, a prenylated flavonoid found in hops and beer, possesses a long-standing reputation to improve health. Xanthohumol’s cytotoxicity to a wide variety of cancer cell lines is well-established. Herein we provide further insight into the cytotoxicity of not only xanthohumol, but also its non-estrogenic derivatives, to a number of colonic...
Oregon's estuaries are important ecosystems for scientific study. Consequently, knowledge of what research has been conducted helps us identify benchmarks and plan new projects. A comprehensive bibliography of published research, technical reports, local documents, and data sets is one means of recording this knowledge. For these reasons, the Guin Library...