The research is about developing a computerized design system for
microtechnology-based energy, and chemical systems (MECS). MECS devices are
a part of microfabrication, which primarily focuses on taking advantage of the
extremely high rates of heat and mass transfer available in microstructures. It
typically consists of intricate arrays of components...
Human cathelicidin antimicrobial peptide (CAMP/LL-37) is a cationic antimicrobial peptide that is widely expressed by myeloid and epithelial cells at the human-environment interface. It possesses broad spectrum antimicrobial capacity against bacteria, fungi and viruses. In addition to its direct antimicrobial activity, CAMP/LL-37 also attracts and recruits monocytes, neutrophils and other...
This study was conducted to (1) determine and assess perceptual
differences among graduate advisors, administrators, and graduate
students regarding the roles and functions of graduate advisors;
(2) determine the appropriate roles and functions of graduate
advisors; and (3) provide constructive feedback to graduate advisors.
A sample population of 415 was...
Research was conducted in a mixed-coniferous forest stand
that was clearcut, burned, and seeded in order to study early plant
succession, grazing influences on native and introduced species, big
game use, and environmental relationships vegetation, animal,
and environmental research was carried out from 1965 to 1967 in
three, five-acre exclosures...
The time-concentration interaction of Al toxicity in the root
meristems of Brevor wheat was studied using the L.D. 50 as a criteria
for Al damage. The L.D. 50 represented a precise, well defined
degree of biological damage which was easily reproduced under conditions
where factors like temperature, pH, nutrient concentration,...
Most of the nutritionally related difficulties of winter feeding
deer apparently result from either poor acceptability of artificial
rations or digestive disturbances that result from feeding starved
animals feeds to which they are not accustomed. Reported in this
thesis are studies conducted with both captive and wild deer concerning
acceptability...
The application of lime to an acid Nekia soil significantly
increased the yield of winter wheat and alfalfa in a field experiment.
Crop yields maximized when the lime was partially mixed into the surface
four inches of the soil. Thorough mixing of the lime into the
surface six inches of...
This study documented the influence of the completion agenda on decision-making by community college career and technical education (CTE) deans. Ten career and technical programs deans were identified as the sample for the study. Washington State was selected because of the Student Achievement Initiative that was developed as a completion...
This dissertation describes a new radio-frequency power-amplifier circuit and mode of operation that exceeds the efficiency of the conventional class C amplifier in the low and medium h-f range. It will be found useful in applications where linearity between the input and output are not required, as in all applications...
Uncertainties in general circulation model (GCM) representations of marine boundary layer (MBL) shallow cloud cover contribute substantially to the spread in model predictions of future climate. Further uncertainties in GCM output arise from an incomplete understanding of cloud-aerosol interactions. For example, the Fifth Assessment Report from the Intergovernmental Panel on...
The human cathelicidin antimicrobial peptide (CAMP) is a broad spectrum microbicidal agent and modulator of both the innate and adaptive immune system. It is induced by 1,25-dihydroxyvitamin D (1,25(OH)₂D₃) through activation of the vitamin D receptor (VDR) and primary bile salts through activation of the xenobiotic nuclear receptor farnesoid X...
Occurrence of human error in highly complex systems, such as a cockpit, can be disastrous and/or overwhelmingly costly. Mismanagement of multiple concurrent tasks has been observed by researchers to be a type of repetitive human error in previous studies of accidents and incidents. This error may occur in the form...
Geometric Problems become increasingly intractable and difficult to visualize as the number of dimensions increases beyond three. Inductions from lower dimensional spaces are possible yet often awkward. This thesis shows how elementary linear algebra, vector calculus, and combinatorics offer improved methods for calculating the dihedral angles of n-simplicies and proving...
A mathematical model was developed to predict the absorption
rate of a slightly soluble gas entrained by a plunging liquid jet. The
single parameter of the model, the transfer factor, TF, was defined
as the summation of the product of the mass transfer coefficient and
interfacial area over all the...
The purposes of this investigation are twofold: (1) to identify the functions necessary for an adequate student personnel program in the two-year community college and (2) to develop guidelines based on the functions identified. Securing And Treating Of Data: The data for this study were obtained by using a questionnaire...
The dairy industry relies primarily on consistent acid production
by the lactic streptococci for the manufacture of certain cheeses
and fermented dairy products. Variation in these cultures due to
genetic exchange has not been thoroughly investigated. This study
was undertaken to determine if genetic homology exists within the lactic
group,...
The present investigation with the chromosomes of Zea mays
was conducted to determine: (1) the effects of chelating agents on the
process of cytological exchange, and (2) the effects of chelating agents
on genetic recombination.
To ascertain the influence of chelating agents on cytological
exchange, four known heterozygolis paracentric inversion...
The purpose of this study was to compare the self-perceived
leadership styles, range and adaptability of
women managers in higher education and non-education management positions. Specifically, the study sought to
investigate the: (1) self-perceived leadership styles and
adaptability of women managers in higher education and non-education,
(2) self-perceived leadership styles...
Studies were carried out to elucidate the mechanism of enzymatic
control of methionine biosynthesis in Saccharomyces cerevisiae.
Enzymatic studies demonstrated that, in addition to the methionine
activating enzyme, the S-adenosylmethionine:homocysteine
transmethylase enzyme was induced during cultivation in the presence
of excess methionine. A similar, though reduced effect was
observed when...
Because of the fuel crisis and problems associated with thermal
pollution there is new impetus and urgency for developing more
efficient energy conversion systems for power generation. A preliminary
analysis was undertaken to determine the potential of staged
Rankine cycle systems for substantially higher efficiency. It was
necessary to optimize...
This comparison study involved the exploration of architecture and social life of the thirteenth century Medieval, sixteenth century Tudor and eighteenth century Georgian periods. Within the architectural and social categories, the specific objective was to examine the changes in the five hundred year period. Three specific houses were chosen as...
Vibrio marinus, strain MP-1, was shown to grow from pH 6.7
to 8.5, with an optimum at 7.3. Growth was inhibited below salinity
10%₀ and above 60%₀ . The upper temperature limit of
growth was 20 C, and growth was very rapid with aeration at 15 C.
Heating of the...
Raw and biologically stabilized Kraft mill effluents were introduced
into laboratory artificial streams at a ratio of 15 ml per liter
of water over a two year period. Effluent from the stabilization pond
of a second mill was introduced at concentrations of from 5 to 40 ml
per liter of...
The relative rates of hydrogen abstraction from a series of 13
arylmethanes by the trichloromethyl radical were determined at 70°.
The attacking radical was generated from bromotrichloromethane us
ing benzoyl peroxide as the initiator. The solvent was benzenebromotrichloromethane.
An excellent correlation, with a coefficient
of 0.977, was obtained when the...
A biosystematic investigation was undertaken in 15
species and three subspecies of the genus Aster, in western
North America. Previous studies had been based entirely on
external morphological features, and it was believed that
much could be learned about the natural affinities of the
taxa by exploring their cytological and...
Fluorescence polarization measurements on beef liver glutamate
dehydrogenase conjugated with pyrene butyric acid demonstrate that
the association of the enzyme is adequately described by a reversible
indefinite association with a single equilibrium constant. The data
obtained with protein concentrations up to 0.7 mg/ml in 0.05 M
potassium phosphate, pH 7....
Three species of bacteriophagous nematodes, Pristionchus
lheritieri (Maupas) Paramanov, Pelodera chitwoodi (Bassen)
Dougherty and Rhabditis sp. were studied to determine their potential
roles as vectors of selected insect pathogens, Bacillus thuringiensis
Berliner, Beauveria bassiana (Balsamo) Vuillemin, Metarrhizium
anisopliae (Metchnikoff) Sorokin and a nuclear polyhedrosis
virus of Trichoplusia ni Hubner.
Chlorine...
The purpose of the study, which was conducted at Chemeketa Community
College in Salem, Oregon, was threefold:
1. to assess the attitudes and opinions of administrators, content
faculty, developmental faculty, and students concerning developmental
education needs of community college students.
2. to develop a questionnaire which could serve as a...
Complementary DNA (cDNA) clones were generated from the RNA genome
of infectious hematopoietic necrosis virus (IHNV) by using random DNA
oligomers to prime first strand synthesis. These clones were mapped to
their respective locations on the genome and used to determine the
nucleotide sequence of the nucleocapsid (N) gene and...
The purpose of this study was to test in practice the perceptual
field approach learning theory with students identified as slow
learners. The essential aim was to achieve significant improvement
in the self adjustment of the students while not inhibiting their
learning of biology. The approaches and techniques of perceptual...
The mechanisms of pool maintenance were investigated in a small (width = 10 m,
drainage area = 18 km2), gravel-bed stream where pools are commonly associated with
large, in-channel obstructions. Measurements of boundary shear stress, scour and fill of
the stream bed, and bedload transport rate and grain-size distribution were...
Optimization of reservoir operation is involves various competing objectives for a scarce resource (water). To find the optimal operation of reservoirs, it is essential to consider multiple objectives simultaneously. There are various sources of uncertainty associated with the reservoir operation problem that should be considered as well.
The overarching goal...
The asymmetric nature of bit errors in several practical applications provides grounds for efficient error control techniques. The Z-channel model and special classes of codes like asymmetric error detection codes and t-asymmetric error correcting/d-asymmetric error detecting codes can be successfully used in ARQ protocols for feedback error control enhancement. This...
The Purpose of the Study
The central purpose of this study was to determine the professional
education competencies of selected community college vocational
instructors. Respondents in the study included instructors of business
and distributive education. Major dimensions were the construction
and validation of a questionnaire for community college vocational
instructors;...
The research study discussed and amplified in this paper consisted
of the development and evaluation of two instructional concepts
illustrating the procedures for 1) typing an offset master, and 2) duplicating
offset copies. Each concept was prepared for use with the
Audiscan projector, which utilizes a 16mm continuous loop filmstrip...
Certain applications have recently appeared in industry where a traditional bar code printed on a label will not survive because the item to be tracked has to be exposed to harsh environments. Laser direct-part marking is a manufacturing process used to create permanent marks on a substrate that could help...
The study was undertaken to determine if a university-level
preliminary class concentrating upon the formalism and techniques
germane to success in science would serve to improve minority
academic performance, minority here being defined to include certain
Asian Americans, Black Americans, Native Americans, Spanish
surnamed Americans, and those white Americans who...
School districts and educational policymakers need current information on Black parental and primary guardian responses toward the
issue of desegregation. This research focused primarily on the attitudes of Black parents and primary guardians toward their involvement
in elementary desegregated schools. The study attempted to determine
if:
(1) Educational background has...
Much work is presently being done concerning small scale heterogeneities in the
earth's crust. These heterogeneities range from pores in sedimentary rocks up to
fluctuations in the density and seismic constants of the earth's crust with scale lengths
of kilometers. The ability to study and quantify these heterogeneities using seismic...
The purpose of this study was to evaluate the student personnel
services rendered at a public two-year community college. The institution
chosen for the study was Lethbridge Community College, located
in Lethbridge, Alberta, Canada.
Six hundred and one people, representing seven population groups,
were randomly selected for participation in this...
The solution structure determination of DNA molecules has been an important part of structural biology. NMR solution structures are a complement to structures solved via X-ray crystallography; the two methods are the only ways of obtaining three dimensional coordinates of macromolecules. Because of the nature of the molecule, the solution...
Studies toward the total syntheses of highly potent cytotoxic alkaloids
including the bromopyrrole alkaloids and indole alkaloids were conducted and are
described. Studies carried out in the course of this dissertation consist of five total syntheses of natural products that include bromopyrrole alkaloids nagelamide A, D and agelastatin D as...
Cutaneous melanoma remains the deadliest form of skin cancer arising from malignant transformation of pigment-producing melanocytes, with a diagnosis of metastasis indicating a median survival rate of less than a year. Solar ultraviolet (UV) radiation, especially childhood sun exposure, is an important etiological risk factor of melanoma. This DNA damage...
In this dissertation, a new Δ∑ A/D converter is presented that is ideally suited for communication applications. It is based on a single-loop single-stage structure, which can realize a high maximum out-of-band quantization noise gain while maintaining stable operation and thus achieve 14-bit resolution at 8 times oversampling. A fifth-order...
American hop growers have historically dried hops in the range of 140-155°F/ 60-68°C using deep bed kilns (24 – 32 inches/ 60 – 81 cm), but over the last 10 years they have shifted to lower temperatures (125 -135 °F/ 52 – 57°C) for drying new American aroma cultivars. Reduced...
There is a growing need for individualized instructional designs in 4-year institutions due to: 1) growing undergraduate enrollment trends across the U.S., 2) broader diversity in students backgrounds, and 3) the growing prevalence of asynchronous remote learning. With the growth in computer technology in education, tools such as adaptive intelligent...
: ____________________________________________________________
Julie D. Tucker Milo D. Koretsky
There is a growing need for individualized instructional
The purpose of this study is to explore through their own stories and journeys (storjourns), how lesbian leaders influence and transform dominant community college culture. Five lesbian leaders participated who held the position of Director, Associate Dean, Dean, Executive Vice President, and President/Executive Dean. This microethnographical inquiry divulges and makes...
Studies towards the total synthesis of (+)-Phomactin A (1), D (6), and G (9), fungal metabolites with unique molecular architecture and pronounced biological activity, are described. These studies resulted in the synthesis of advanced intermediates 354 and 356, which contain all of the carbon atoms of 1, 6 and 9....
In order to assess the importance of RNA synthesis in the induction
and antibody-producing phases of immune responses, actinomycin
D was used to inhibit the primary and secondary in vitro immune
responses of mouse spleen cells against heterologous erythrocytes.
The presence of actinomycin D (0.1 or 0.125 μg /ml) throughout...
In recent years, there has been growing interest in both industry and academia to use continuous-time (CT) Δ-Σ A/D converters for wideband wireless and wireline communication applications.
So far no reported CT Δ-Σ A/D modulator achieves 14-bit or higher dynamic range (DR) with more than 2MHz signal bandwidth (equivalently 4MS/s)....
Two light sensitive mutants of the green alga Scenedesmus obliquus strain D₃ have been characterized. The photodynamic nature of their sensitivity has been established, the subchloroplast site of photodamage has been investigated, and their noncarotenogenic character has been verified. The two mutants possess several similarities, although mutant L. S. -41...
This thesis describes compensation techniques for cascaded delta-sigma A/D
converters (ADCs) and high-performance switched-capacitor (SC) circuits. Various
correlated-double-sampling (CDS) techniques are presented to reduce the effects of the
nonidealities, such as clock feedthrough, charge injection, opamp input-referred noise and
offset, and finite opamp gain, in SC circuits. A CDS technique...
Cellulolytic enzymes capable of efficiently degrading crystalline cellulose are a
complex mixture of endo- (endoglucanases) and exo-acting (cellobiohydrolases)
enzymes. One approach to separating these enzymes is affinity chromatography. A new
ligand, p-aminophenyl l-thio-β-D-cellobioside (APTC), is introduced for this purpose.
The property of APTC in affinity chromatography is demonstrated using Trichoderma...
Partial reactions of photosynthesis were examined in the wild
type strain and six photosynthetic mutants (8, 11, 26, 40, 50, a') of
Scenedesmus obliquus, strain D₃. A reproducible procedure for the
isolation of active chloroplast fragments from Scenedesmus was
developed. Several chloroplast reactions were examined, as well
as two in...
The enantioselective total synthesis of quinolizidine-containing natural product cermizine D and formal syntheses of senepodine G and cermizine C has been achieved. These natural products are members of the lycopodium alkaloids, which have attracted significant attention due to their exciting biological activities and the diverse structural scaffolds. Key steps in...
This paper develops an equation, from an heuristic set of assumptions,
which describes the axial current, leakage current, resultant
electric field, and resultant earth potential occurring when
a pipeline buried within a resistive earth is subjected to a distributed,
primary, axial, electrostatic field produced from a high-voltage, direct-current (HVDC) power...
The effect of unsteady thermocapillary convection on the mass transfer rate of a solute between two immiscible liquids within a rectangular microscale channel with differentially heated sidewalls was numerically investigated. A computational fluid dynamic code in Fortran77 was developed using the finite volume method with Marker and Cell (MAC) technique...
Airborne discrete-return lidar is an active remote sensing technology capable of obtaining accurate, fine-resolution three-dimensional measurements over large areas. Discrete-return lidar data produce three-dimensional object characterizations in the form of point clouds defined by precise x, y and z coordinates. The data also provide intensity values for each point that...
:
_____________________________________________________________________
Kevin D. Boston
Airborne discrete-return lidar is an active remote sensing technology
Studies towards the total synthesis of (-)-gymnodimine (1), a marine neurotoxin with a unique molecular architecture and pronounced biological activity, are described. These studies resulted in a convergent approach to the advanced intermediate 315, containing the C3-C32 section of 1. Two synthetic routes were developed to construct the tetrahydrofuran subunit...
Purposes of the Study: The study had several purposes, the major one being to identify common professional education competencies essential to adequate performance by administrators of vocational education at the community college level. Other purposes of the study were to: (1) determine if significant differences existed in vocational administration competencies...
Cervical cancer is the fourth most common cancer in women worldwide with human papillomavirus (HPV) being the main cause of the disease. Currently available treatment methods are limited and emphasize the need for discovery of new therapies that improve patient outcome. Chromosomal amplifications have been identified as a source of...
Providing transformational learning opportunities for undergraduate students demands changes to teaching practices. In large-enrollment introductory courses, graduate teaching assistants (GTAs) play an important role in facilitating student learning in small group environments. However GTAs are not provided the pedagogical development necessary to support them to be effective in their teaching...
After nearly 20 years of commercial use in orchards without
apparent tree injury in Oregon and Washington, 2,4-D [(2,4-dichlorophenoxy)
acetic acid] was reported in 1970 to cause injury to apple
and pear trees in Washington. In the early 1970's, there was widespread
concern among growers, researchers, and processors in the...
This dissertation details the investigation of an alternate pathway to
isoprenoids that occurs in plants and microorganisms, the non-mevalonate
pathway. This exploration of the pathway focuses on the second step, the
conversion of 1-deoxy-D-xylulose-5-phosphate (DXP) to 2-C-methylerythritol-4-phosphate (MEP) by the enzyme DXP isomeroreductase (DXR). These studies led to an appreciation...
The major phenolics of 'd' Anjou' pear (Pyrus communis L.)
tissues were chlorogenic acid and arbutin. Chlorogenic acid
inhibited mycelial growth and spore germination of Penicillium
expansum and mycelial growth of Mucor piriformis. Slight increases
in radial growth and spore germination of Botrytis cinerea occurred
on chlorogenic acid media. Chlorogenic...
In recent years, the methyl erythritol phosphate (MEP) pathway to isoprenoids has been the subject of intensive research. The interest is because isoprenoids have important roles in many cellular processes essential for the survival of several pathogenic organisms, making the inhibition of this pathway an attractive target for the drug...
I. Lithium alkyl and aryl monosubstituted cyclooctatetraenide
dianions (Li₂ C₈H₇-R; R = methyl, n- butyl, sec- butyl, tert- butyl,
phenyl and benzyl) were synthesized by the reaction of the appropriate
organolithium reagent with cyclooctatetraene in diethyl ether or
tetrahydrofuran. The reaction occurred cleanly and with good yield
of lithium monosubstituted...
This dissertation presents the results of statistical analyses of large climate datasets from two time intervals – the 20th century instrumental record and the proxy record of the last deglaciation – in order to understand the forcings and mechanisms of past climate variability.
A longstanding question in climate dynamics concerns...
Several investigators have recently called attention to the
fact that the flux equation for water movement in unsaturated soils
may not be an appropriate mathematical model for the development
of the theory of unsaturated flow phenomena.
An analytical theory is developed for the purpose of testing
the validity of the...
As the aging population continues to grow worldwide, age-related complications are becoming more apparent within the aging population. One of the first age-related complications to become apparent is age-associated memory impairment and it can make the elderly more dependent on caregivers early on. The N-methyl-D-aspartate (NMDA) receptor is important to...