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Articles 4681 - 4710 of 20341
Full-Text Articles in Entire DC Network
Designing A Soil Ph Monitoring Network For The Western Australian Wheatbelt, Karen Holmes, Pat Bellamy, Jim Dixon
Designing A Soil Ph Monitoring Network For The Western Australian Wheatbelt, Karen Holmes, Pat Bellamy, Jim Dixon
Resource management technical reports
Natural resource managers in Western Australia require a purposely designed soil pH monitoring network to identify areas at higher risk of soil acidification and to observe changes in soil pH through time. This monitoring network, in conjunction with field experimental work and acidification modelling, will identify state and regional trends and help shape state natural resource management policy and regional extension programmes, as well as directly inform industry and land managers.
Sound Production In Two Loricariid Catfishes, Amanda Lynn Webb
Sound Production In Two Loricariid Catfishes, Amanda Lynn Webb
Masters Theses & Specialist Projects
Many families of catfish produce sounds via pectoral spine stridulation and/or swim bladder compression using sonic muscles attached to the swim bladder. The sound production capabilities and characteristics in Loricariidae, the largest catfish family, have not been well examined. Sounds produced by two loricariid catfish species, Macrotocinclus affinis and Pterygoplichthys gibbiceps were recorded. Both species produce broad band calls via pectoral spine stridulation. These species produce sounds by rubbing the ridges of the dorsal process of the pectoral spine base against the groove of the pectoral girdle. Call duration was generally shorter in M. affinis (2-15 ms) as opposed to …
Investigation Of C-Reactive Protein And Leptin As Biomarkers Of Obesity With Potential Clinical Utility, Rachel Ann Friedman
Investigation Of C-Reactive Protein And Leptin As Biomarkers Of Obesity With Potential Clinical Utility, Rachel Ann Friedman
Masters Theses & Specialist Projects
Obesity and its subsequent disease states are major health problems in the United States. In many ways, obesity can be considered a “disease state” itself due to the changes it causes on the body. High-intensity exercise also places acute stress the body, putting humans in recovery from exercise in a state that may be analogous to a temporary disease state. The purpose of this study was to examine biomarkers associated with obesity (CRP and Leptin) before and after continuous and intermittent bouts of exercise in an obese but otherwise healthy sample vs. a healthy, non-obese sample. This investigation focused on …
Action Spectrum For Photoentrainment Of The Circadian Clock In Wild-Type Chlamydomonas Reinhardtii, Jennifer Forbes=Stovall
Action Spectrum For Photoentrainment Of The Circadian Clock In Wild-Type Chlamydomonas Reinhardtii, Jennifer Forbes=Stovall
Masters Theses & Specialist Projects
The circadian clock is an endogenous timer that oscillates with a period of approximately 24 hours and is reset upon environmental time cues such as the daily light/ dark or temperature cycles. Chlamydomonas reinhardtii is an ideal model organism for research on the circadian clock, because it shows several well-characterized behaviors that exhibit a circadian rhythm. Its circadian rhythm of phototaxis (swimming toward light) has been automated. Former action spectrum studies using the circadian phototaxis rhythm as an indicator surprisingly found that pulses of blue light were not effective in resetting the circadian clock of dark-adapted cells. This may have …
The Relationship Of Dominance, Reproductive State And Stress In A Non-Cooperative Breeder, The Domestic Horse (Equus Caballus), Carly Anne Sinderbrand
The Relationship Of Dominance, Reproductive State And Stress In A Non-Cooperative Breeder, The Domestic Horse (Equus Caballus), Carly Anne Sinderbrand
Masters Theses & Specialist Projects
Animals that live in a social group are often organized in a hierarchy with rank determining access to resources. Maintaining a dominant position requires a high rate of energetically expensive aggressive displays and physical exertion. Lab based winnerloser studies, often conducted with individuals from non-social species, have shown that subordinates have higher stress hormone levels than dominant individuals (subordinatestress hypothesis). However, in carnivorous animals that are cooperative breeders, displays of aggression are associated with elevated stress hormone levels (dominancestress hypothesis). The effect of reproductive state on dominance and stress is not addressed within either of these hypotheses. The purpose of …
Determining The Viability Of A Hybrid Experiential And Distance Learning Educational Model For Water Treatment Plant Operators In Kentucky, Jana R. Fattic
Determining The Viability Of A Hybrid Experiential And Distance Learning Educational Model For Water Treatment Plant Operators In Kentucky, Jana R. Fattic
Masters Theses & Specialist Projects
Drinking water and wastewater industries are facing a nationwide workforce shortfall of qualified treatment plant operators due to factors including the en masse retirement of baby boomers and the tightening of regulatory requirements regarding the hands-on experience required prior to licensure. Rural areas are hardest hit due to the lack of educational and experiential opportunities available to them within a reasonable proximity. Using a variety of demographic and industry data, a geographic analysis of Kentucky was conducted to assess the viability of the traditional classroom delivery model versus a hybrid experiential and distance learning educational model (HEDLEM). Although this analysis …
Occupational Health Assessment: A Tool For Nursing Faculty, Sherry R. Lovan, M. Susan Jones
Occupational Health Assessment: A Tool For Nursing Faculty, Sherry R. Lovan, M. Susan Jones
Nursing Faculty Publications
No abstract provided.
Effects Of Glucocorticoid On Microglia Cell Functions, Kari J. Wiedinger
Effects Of Glucocorticoid On Microglia Cell Functions, Kari J. Wiedinger
Theses
No abstract provided.
Effects Of Oxidative Stress On Cultured Spermatogenic Cycts And An Ultrastructural Analysis Of The Testes In Drosophila Pseudoobscura, Robert W. Yates
Effects Of Oxidative Stress On Cultured Spermatogenic Cycts And An Ultrastructural Analysis Of The Testes In Drosophila Pseudoobscura, Robert W. Yates
Theses
No abstract provided.
2011 Fall - Schedule Of Classes, Office Of The Registrar, East Tennessee State University
2011 Fall - Schedule Of Classes, Office Of The Registrar, East Tennessee State University
Registration Resources
No abstract provided.
2011 Fall - Registration Guide, Office Of The Registrar, East Tennessee State University
2011 Fall - Registration Guide, Office Of The Registrar, East Tennessee State University
Registration Resources
No abstract provided.
Multinational Teams: The Relationship Between Work Values And Productivity And The Moderating Effect Of Degree Of Operational Integration, Kelly C. Kinnebrew
Multinational Teams: The Relationship Between Work Values And Productivity And The Moderating Effect Of Degree Of Operational Integration, Kelly C. Kinnebrew
Electronic Theses and Dissertations
The present study gathered data from 147 employees in two U.S. headquartered multinational manufacturing companies. Participants responded to questions about their work-related values, perceptions of the productivity of their work teams, and the degree of operational integration between firms‟ foreign affiliate offices and their U.S. based headquarters. Additionally, analyses were conducted to assess the relationship between team productivity and psychic distance, which is a measure of country-level cultural differences. Work values were assessed using The Values Scale (Neville & Super, 1989), perceptions of team productivity were assessed used an instrument by Kirkman and Rosen (1999), degree of operational integration was …
2011 Summary Report On Institutional Effectiveness, Clemson University
2011 Summary Report On Institutional Effectiveness, Clemson University
Institutional Effectiveness Reports
No abstract provided.
Comprehension Of Functional Support By Enculturated Chimpanzees Pan Troglodytes, Anna M. Yocom, Sarah T. Boysen
Comprehension Of Functional Support By Enculturated Chimpanzees Pan Troglodytes, Anna M. Yocom, Sarah T. Boysen
Sentience Collection
Studies of causal understanding of tool relationships in captive chimpanzees have yielded disparate findings, particularly those reported by Povinelli & colleagues (2000) for tool tasks by laboratory chimpanzees. The present set of experiments tested nine enculturated chimpanzees on three versions of a support task, as described by Povinelli (2000), during which food rewards were presented in different experimental configurations. In Experiment 1, stimulus pairs included a choice between a cloth with a reward on the upper right corner or with a second reward off the cloth, adjacent to a corner, with the second pair comprised of a cloth with food …
Diabetes Prevalence Is Associated With Serum 25-Hydroxyvitamin D And 1,25-Dihydroxyvitamin D In Us Middle-Aged Caucasian Men And Women: A Cross-Sectional Analysis Within The Prostate, Lung, Colorectal And Ovarian Cancer Screening Trial, Kaye E. Brock, Wen-Yi Huang, David R. Fraser, Liang Ke, Marilyn Tseng, Rebecca S. Mason, Rachael Z. Stolzenberg-Solomon, D. Michal Freedman, Jiyoung Ahn, Ulrike Peters, Catherine Mccarty, Bruce W. Hollis, Regina G. Ziegler, Mark P. Purdue, Barry I. Graubard
Diabetes Prevalence Is Associated With Serum 25-Hydroxyvitamin D And 1,25-Dihydroxyvitamin D In Us Middle-Aged Caucasian Men And Women: A Cross-Sectional Analysis Within The Prostate, Lung, Colorectal And Ovarian Cancer Screening Trial, Kaye E. Brock, Wen-Yi Huang, David R. Fraser, Liang Ke, Marilyn Tseng, Rebecca S. Mason, Rachael Z. Stolzenberg-Solomon, D. Michal Freedman, Jiyoung Ahn, Ulrike Peters, Catherine Mccarty, Bruce W. Hollis, Regina G. Ziegler, Mark P. Purdue, Barry I. Graubard
Kinesiology and Public Health
Hypovitaminosis D may be associated with diabetes, hypertension and CHD. However, because studies examining the associations of all three chronic conditions with circulating 25-hydroxyvitamin D (25(0H)D) and 1,25-dihydroxyvitamin D (1,25(0H)2D) are limited, we examined these associations in the US Prostate, Lung, Colorectal and Ovarian (PLCO) Cancer Screening Trial (n 2465). Caucasian PLCO participants selected as controls in previous nested case-control studies of 25(0H)D and 1,25(0H)2D were included in this analysis. Diabetes, CHD and hypertension prevalence, risk factors for these conditions and intake of vitamin D and Ca were collected from a baseline questionnaire. Results indicated …
Posttraumatic Distress As Experienced By Adolescents: Traumatic Stress Through Adolescent Eyes, Andrea Saul
Posttraumatic Distress As Experienced By Adolescents: Traumatic Stress Through Adolescent Eyes, Andrea Saul
College of Liberal Arts & Social Sciences Theses and Dissertations
This dissertation expands research regarding the types of stressors associated with PTSD among adolescents. The study utilized a broad sample of youth who were specifically queried regarding traumatic stressors and their perception of risk of death or serious injury associated with these experiences in order to examine the current DSM-IV PTSD criteria A. The impact of other significant life stressors generally recognized to fall outside the PTSD A1 criterion but that may be perceived or experienced as traumatic through the developmental lens of adolescence were also explored. The inclusion of multiple types of trauma and indicators of repeated trauma allowed …
Analysis Of Protein Secondary Structure Via The Discrete Wavelet Transform, Timothy E. Vanderleest
Analysis Of Protein Secondary Structure Via The Discrete Wavelet Transform, Timothy E. Vanderleest
College of Liberal Arts & Social Sciences Theses and Dissertations
This project develops a secondary structure prediction approach that uses the discrete wavelet transform. In order to use the wavelet technique, we convert the primary amino acid sequence of the protein to a numerical signal using the hydrophobic tendencies associated with the amino acids. The data used in this project consists of both a + B and a/B proteins coming from the Structural Classification of Proteins (SCOP) protein database. This data provides both protein primary sequences and secondary structure locations. In total, 13,435 individual proteins and nearly 15,511 unique protein subunits are analyzed. We use three different experimentally determined hydrophobicity …
Life As A Swimmer, Danielle N. Coville
Life As A Swimmer, Danielle N. Coville
Chemistry and Biochemistry
No abstract provided.
Digital Mapping As A Student And Staff Communication Tool, Ryan Gyurkovitz
Digital Mapping As A Student And Staff Communication Tool, Ryan Gyurkovitz
Horticulture and Crop Science
A study in the use of Geographic Information Systems in the development of digital maps for use by students and staff in Plant Identification Courses.
Preconference Proceedings Of The Focus Symposium On Intelligent Information Management Systems, Jens G. Pohl
Preconference Proceedings Of The Focus Symposium On Intelligent Information Management Systems, Jens G. Pohl
Collaborative Agent Design (CAD) Research Center
No abstract provided.
Ua3/9/2 Market Demand Study & Statement Of Estimated Annual Operating Results, Wku President's Office - Ransdell
Ua3/9/2 Market Demand Study & Statement Of Estimated Annual Operating Results, Wku President's Office - Ransdell
WKU Administration Documents
Marketing report created by PKF Consulting firm regarding the tax increment financing district of Bowling Green.
Spite And The Scale Of Competition In Pseudomonas Aeruginosa, R. Inglis, Patrick Roberts, Andy Gardner, Angus Buckling
Spite And The Scale Of Competition In Pseudomonas Aeruginosa, R. Inglis, Patrick Roberts, Andy Gardner, Angus Buckling
Biology Department Faculty Works
Scale of competition has been shown to be an important factor in shaping the evolution of social interactions. Although many theoretical and experimental studies have examined its effect on altruistic cooperation, relatively little research effort has been focused on spiteful behaviors—actions that harm both the actor and the recipient. In this study, we expand on existing theory by investigating the importance of the global frequency of spiteful alleles, and we determine experimentally how the scale of competition affects selection for spite in the bacterial pathogen Pseudomonas aeruginosa under high and intermediate spatial relatedness. Consistent with our theoretical results, we found …
Population Genetic Structure Of Lemon Sharks In The Western Atlantic: Is There Evidence Of Gender-Biased Dispersal And Differences Between Neutral And Adaptive Loci?, Jimiane Lee Ashe
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Sampling difficulties and low genetic diversity have limited population genetic studies of large, vagile shark species. Through extensive sampling (580 individuals from 12 locations) and a multilocus approach involving two mitochondrial DNA loci (control region and ND2, composite sequence 1,730 bp) and eight microsatellites, I was able to delineate the population genetic structure of the lemon shark, Negaprion brevirostris, in the western Atlantic. I articulated two hypotheses to explain genetic structure in coastal sharks: (1) females exhibit natal philopatry to parturition sites, resulting in local population structure and (2) males are dispersive, resulting in high male-mediated gene flow. I predicted …
Evolvability In The Face Of Climate Change: The Effects Of Novel Genetic Variation On Phenotypic Integration And Plasticity To Elevated Carbon Dioxide In Arabidopsis Thaliana, Mark Jonas
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Carbon dioxide is an important selective agent in the evolution of plants. The rapid increase in the concentration of atmospheric carbon has given considerable impetus to studies exploring the impact of elevated carbon dioxide (eCO2) on plant populations. While eCO2 has been shown to affect plants at multiple levels of biological organization--from gene expression to community structure--our understanding of plant evolutionary dynamics in eCO2 environments is limited. A key step in elucidating evolutionary responses is characterizing the effects of novel genetic variation on patterns of phenotypic plasticity and integration among ecologically relevant traits. This approach can provide insights into the …
Increased Neurotrophin-3 Expression Promotes The Metastatic Growth Of Breast Cancer Cells In The Brain, Elizabeth Angela Louie
Increased Neurotrophin-3 Expression Promotes The Metastatic Growth Of Breast Cancer Cells In The Brain, Elizabeth Angela Louie
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
Nearly 20% of breast cancer patients with non-localized disease are eventually diagnosed with brain lesions, making breast cancer a main source of metastatic brain disease in women. The process of metastasis is highly specific, though the molecular basis for breast cancer metastasis to the brain remains unclear. A novel proteomic signature associated with breast cancer brain metastasis showed an association of the expression of neurotrophin-3 (NT-3), a growth factor, with brain-targeting metastatic breast cancer cell lines. To evaluate the importance of NT-3 in the ability of brain-targeting breast cancer cell lines to grow in the brain, I knocked down NT-3 …
Statistical Methods For Biological Pathway Analysis, Xiao Wu
Statistical Methods For Biological Pathway Analysis, Xiao Wu
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
This thesis features a novel theoretical development, as well as a novel application of the structural equation modeling (SEM) framework for biological pathway and biological measurement platform comparisons respectively. For the SEM methodology development, we have extended the covariate structural equation modeling (cSEM) method (Sharpe, 2010) for pathway comparisons that was limited to continuous variables on the pathway nodes and categorical variables as pathway covariates only, to allow both continuous and categorical variables as pathway nodes as well as pathway covariates. This novel mixed variable cSEM method will permit researchers to implement a pathway with both continuous variables such as …
Assessing The Role Of Amyloid Beta In Alzheimer's Disease Using The 5xfad And Tgswdi Transgenic Mouse Strains, Wen Jin Xu
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
The Amyloid Cascade theory of Alzheimer's disease (AD) states that formation and accumulation of amyloid plaques in the brain leads to deleterious downstream effects such as neurodegeneration and gliosis that ultimately cause behavioral deficits and memory loss. In recent years however, the exact role amyloid beta (A&beta) plays in AD has come into question. The most prevalent theory is that amyloid plaque deposition in the parenchyma is the main contributor of pathology in AD. More recent hypotheses state that A&beta deposition in the neural microvasculature in the form of cerebral amyloid angiopathy (CAA) plays a central role in AD. The …
Joint Genetic And Microrna Study Of The Human Thrombocytosis Under A System Biology Scheme, Xiao Xu
Joint Genetic And Microrna Study Of The Human Thrombocytosis Under A System Biology Scheme, Xiao Xu
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
The disease of human thrombocytosis is a type of myeloproliferative disorder (MPD) characterized by a complex alteration of genetic and epigenetic factors. Consequently, the pathological cellular environment is permeated by transcriptomic deregulation, interferomic aberrations, protein level irregularity and disrupted cellular pathways. In this dissertation, we present a novel study of the human thrombocytosis disease through a multi-layered genetic, microRNA and proteomic platelet modeling and analysis in a systems biology scheme. This includes (1) the extraction of distinctive messenger RNA and microRNA expression profiles in human platelets for two subtypes of thrombocytosis patients versus the normal control group, (2) the derivation …
The Electronic Structures Of Organic Molecules On Metal Surface And Size-Selected Clusters On Oxide Surface, Jing Zhou
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
In order to improve the performance of molecular electronics and catalysts, it is important to understand the electronic structures of adsorbed molecules or clusters on surfaces. The work presented in this thesis focuses on the characterization of the electronic properties and their relationship with geometric structures using two-photon photoemission, scanning tunneling microscopy and other surface analysis techniques. Mainly, two types of systems have been studied. One is adsorbed organic molecules (thiophene and aromatic diisocyanides) on a Au(111) surface. On the surface, phenyl diisocyanide molecules lie flat and form one-dimensional molecular chain structures after thermal treatment at 300 K. The molecular …
Solid State Nmr Study Of Protonic Conductors For Applications As Electrolyte Materials In Solid Oxide Fuel Cells, Lucienne Buannic
Solid State Nmr Study Of Protonic Conductors For Applications As Electrolyte Materials In Solid Oxide Fuel Cells, Lucienne Buannic
Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)
In the context of the current energy crisis, we need to develop cleaner and more efficient energy conversion devices. The Solid Oxide Fuel Cell is one of the most promising conversion devices currently under study: it creates electricity by reduction of either fossil fuels or biofuels with an efficiency of up to 60% (compared to 30% for a combustion engine). In order to render this application viable for commercialization, we need to reduce the operating temperature of the device. This will decrease the fabrication cost and considerably extend the lifetime of the device, however the ionic conduction has to be …