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Articles 5461 - 5490 of 7189
Full-Text Articles in Entire DC Network
Imaging Second-Harmonic Radiation And Scattering Patterns In Zno Micro/Nanostructures, Katrina Marie Geren
Imaging Second-Harmonic Radiation And Scattering Patterns In Zno Micro/Nanostructures, Katrina Marie Geren
Graduate Theses and Dissertations
The optical characteristics of ZnO nanostructures have recently garnered interest due to the inclusion of these structures in many nanoscale optical and optoelectronic devices. This thesis will address several characteristics involving second harmonic generation and scattering in ZnO nano- and microstructures. A method will be presented for determining the nonlinear coefficients of the second order susceptibility in a single ZnO rod. This method uses transmission geometry where previous methods have employed back-reflected irradiation. The nonlinear coefficients found using this new technique were consistent with previous data from similar structures. Models will be presented for predicting the second harmonic scattering patterns …
Whatever Happened To Old Mac Donald's Farm… Concentrated Animal Feeding Operation, Factory Farming And The Safety Of The Nation's Food Supply, Julie Follmer, Roseann B. Termini
Whatever Happened To Old Mac Donald's Farm… Concentrated Animal Feeding Operation, Factory Farming And The Safety Of The Nation's Food Supply, Julie Follmer, Roseann B. Termini
Journal of Food Law & Policy
Today, livestock farming is a far stretch from the nostalgic notion of animals grazing in green pastures, roaming free in the fresh country air and returning at the end of the day to a cozy barn. Simply stated, livestock farming is a large scale business, where tens of thousands of animals are swiftly raised industrial-style for maximum profit. Under the "factory farm" model, large corporate owned operations grow quantities of animals for slaughter for human consumption as food. In fact, livestock farms now raise 40% of all animals in the United States.
The Membrane Interface Of Chloroplast Signal Recognition Particle-Dependent Protein Targeting, Naomi Jane Marty
The Membrane Interface Of Chloroplast Signal Recognition Particle-Dependent Protein Targeting, Naomi Jane Marty
Graduate Theses and Dissertations
A novel signal recognition particle (SRP) found in the chloroplast (cpSRP) works in combination with the cpSRP receptor, cpFtsY, to facilitate the post-translational targeting of a family of nuclear-encoded thylakoid proteins to the Alb3 translocase in thylakoid membranes. Work here focused on understanding events at the membrane that take place to ensure targeting of the cpSRP-dependent substrate to Alb3. Specifically, we sought to understand the structural and functional role of membrane binding by cpFtsY, a protein that exhibits the ability to partition between the membrane (thylakoid) and soluble (stroma) phase during protein targeting. We also sought to understand whether a …
Understanding The Role Of Histones During Chromosome Segregation: A Study Of The Effects Of Histone Gene Dosage In Saccharomyces Cerevisiae, Rebecca Leigh Danforth
Understanding The Role Of Histones During Chromosome Segregation: A Study Of The Effects Of Histone Gene Dosage In Saccharomyces Cerevisiae, Rebecca Leigh Danforth
Graduate Theses and Dissertations
Chromatin plays a role in all cellular functions that involve DNA. These include, but are not limited to replication, recombination, transcription, and chromosome segregation. Chromosome segregation is an extremely well conserved cellular process and is essential for maintaining the genetic integrity of a cell. There is very strong evidence indicating that chromatin structure is critical for maintaining the fidelity of chromosome transmission, but its specific role(s) in this process remains unclear. Chromatin is comprised of arrays of nucleosomes that serve to compact DNA. These nucleosomes consist of 146 bp of DNA that is wrapped around a histone octamer; two each …
Preparation, Separation, Purification, Characterization And Human Cell Line Anti-Cancer Evaluation Of Rice Bran Peptides, Arvind Kannan
Preparation, Separation, Purification, Characterization And Human Cell Line Anti-Cancer Evaluation Of Rice Bran Peptides, Arvind Kannan
Graduate Theses and Dissertations
Bioactive compounds are revolutionizing the nutritional and medicinal world with their inherent disease-fighting properties. A wide range of functional groups fall under the category of imparting health benefits. Compounds from both animal and plant origins have been generated as bioactive agents that have opened up new vistas for alternative medicine and natural healing. For example, in a debilitating disease like cancer, these compounds can act to suppress or delay the underlying pathology over and above the conventional treatment strategies involving drugs or chemotherapy. In other words conventional and invasive therapy, although still considered appropriate at certain stages of cancer, their …
Development Of A Distributed Artificial Neural Network For Hydrologic Modeling, Rebecca Logsdon
Development Of A Distributed Artificial Neural Network For Hydrologic Modeling, Rebecca Logsdon
Biological and Agricultural Engineering Undergraduate Honors Theses
Development of a distributed artificial neural network for hydrologic modeling
Specificity Analysis Of Site-Directed Mutated Glucose Indicator Proteins, Tanushree Thote
Specificity Analysis Of Site-Directed Mutated Glucose Indicator Proteins, Tanushree Thote
Biological and Agricultural Engineering Undergraduate Honors Theses
Specificity analysis of site-directed mutated glucose indicator proteins
Analysis Of Ecosystem Services At Mullins Creek On The University Of Arkansas Campus, Kathryn Mccoy
Analysis Of Ecosystem Services At Mullins Creek On The University Of Arkansas Campus, Kathryn Mccoy
Biological and Agricultural Engineering Undergraduate Honors Theses
The University of Arkansas has been a site of population and urban growth since its inception in 1871. This urban development has caused extreme changes in land use, and with this has also come a change in ecosystem services provided by the area. Ecosystem services are benefits acquired by humans that are provided by functions are an ecosystem (Constanza et al., 1997). Constanza developed a method for quantifying ecosystem services. In this method, Constanza valuated ecosystem services for biomes. These service values were based on the economic value of the service provided, and were given in dollar per hectare-year. A …
Analysis Of Phase Ii Metabolites Of Methamphetamine By Solid-Phase Extraction And Liquid Chromatography With Tandem Mass Spectrometric Detection, Jordan Carbary, Howard P. Hendrickson
Analysis Of Phase Ii Metabolites Of Methamphetamine By Solid-Phase Extraction And Liquid Chromatography With Tandem Mass Spectrometric Detection, Jordan Carbary, Howard P. Hendrickson
Biological and Agricultural Engineering Undergraduate Honors Theses
Methamphetamine (METH) abuse is one of the most serious health problems in the United States and Europe due to its addictive properties and potential neurotoxic effects [1, 2, 3]. METH abuse appears to have stabilized or decreased slightly in the general populations, however abuse in certain populations is increasing [4, 5]. Treatments for drug abuse are often tested in animal behavioral pharmacology models. One of the first in vivo tests conducted in animals is to follow the concentration of the drug and its metabolites as a function of time. In this way, one can determine how long a potential medication …
Carbon Nanotube Cluster Based Micro-Fluidic System For Bacteria Capture, Concentration, And Separation, Christopher Nelson
Carbon Nanotube Cluster Based Micro-Fluidic System For Bacteria Capture, Concentration, And Separation, Christopher Nelson
Biological and Agricultural Engineering Undergraduate Honors Theses
Disease-causing pathogens continue presenting enormous global health problems, especially due to their easy transmittance to people via water supply systems. The detection, filtration, and purification of bacteria contaminated water samples are complex and subject to a great amount of error. Here we present a new and highly effective micro-fluidic system with carbon nanotube clusters for effective and efficient detection, filtration, and purification of bacteria contaminated medium. The developed system is based upon two unique properties of carbon nanotubes (CNTs): high bacterial affinity and magnetic susceptibility. The CNTs' high affinity to bacteria cells makes them a key candidate for the bacteria …
Putting "Teaching To The Test" To The Test: Is This Really A Problem In Arkansas?, Stuart Buck, Gary W. Ritter
Putting "Teaching To The Test" To The Test: Is This Really A Problem In Arkansas?, Stuart Buck, Gary W. Ritter
Arkansas Education Reports
Arkansas’s state standardized tests have changed over the past few years. Since the ACTAAP legislation of 1999, Arkansas students have taken criterion-referenced Benchmark Tests based on the state’s curricular standards along with national norm-referenced exams each year. Prior to 2004, students in grades 4, 6, and 8 were administered the Benchmark tests in Mathematics and in English Language Arts. Starting in 2005, the odd-numbered grades were added so that students in grades 3-8 took the week-long Benchmark tests, in accordance with the requirements of the federal No Child Left Behind act.
Mole Street Journal, April 2009, University Of Arkansas, Fayetteville. Dept. Of Chemistry And Biochemistry
Mole Street Journal, April 2009, University Of Arkansas, Fayetteville. Dept. Of Chemistry And Biochemistry
Mole Street Journal
No abstract provided.
Mole Street Journal, March 2009, University Of Arkansas, Fayetteville. Dept. Of Chemistry And Biochemistry
Mole Street Journal, March 2009, University Of Arkansas, Fayetteville. Dept. Of Chemistry And Biochemistry
Mole Street Journal
No abstract provided.
Graduate, Spring-Summer 2009, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville)
Graduate, Spring-Summer 2009, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville)
Graduate
"For alumni and friends of the Dale Bumpers College of Agricultural, Food and Life Sciences and the University of Arkansas System Division of Agriculture."
Research Frontiers, Spring 2009, University Of Arkansas Fayetteville. Office Of University Relations
Research Frontiers, Spring 2009, University Of Arkansas Fayetteville. Office Of University Relations
Research Frontiers
No abstract provided.
Food Safety Consortium Newsletter, Spring 2009, Food Safety Consortium (U.S.)
Food Safety Consortium Newsletter, Spring 2009, Food Safety Consortium (U.S.)
Food Safety Consortium Newsletter
No abstract provided.
Avian Advice, Spring 2009, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville). Center Of Excellence For Poultry Science, University Of Arkansas (System). Cooperative Extension Service
Avian Advice, Spring 2009, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville). Center Of Excellence For Poultry Science, University Of Arkansas (System). Cooperative Extension Service
Avian Advice
No abstract provided.
Mole Street Journal, February 2009, University Of Arkansas, Fayetteville. Dept. Of Chemistry And Biochemistry
Mole Street Journal, February 2009, University Of Arkansas, Fayetteville. Dept. Of Chemistry And Biochemistry
Mole Street Journal
No abstract provided.
Arkansas Physics Times, January 7, 2009, Society Of Physics Students (American Institute Of Physics)
Arkansas Physics Times, January 7, 2009, Society Of Physics Students (American Institute Of Physics)
Arkansas Physics Times
No abstract provided.
Arkansas Swimming And Diving Media Guide, 2008-2009, University Of Arkansas, Fayetteville. Athletics Media Relations, University Of Arkansas, Fayetteville. Women's Athletics Department. Women's Communications Office, University Of Arkansas, Fayetteville. Women's Athletics Department. Women's Sports Information Office, University Of Arkansas, Fayetteville. Men's Athletics Department. Sports Information Office
Arkansas Swimming And Diving Media Guide, 2008-2009, University Of Arkansas, Fayetteville. Athletics Media Relations, University Of Arkansas, Fayetteville. Women's Athletics Department. Women's Communications Office, University Of Arkansas, Fayetteville. Women's Athletics Department. Women's Sports Information Office, University Of Arkansas, Fayetteville. Men's Athletics Department. Sports Information Office
Arkansas Swimming and Diving
Issued by: Women's Communications Office, 2003-2007; Athletics Media Relations, 2008-2012
Hr E-Source, January-March 2009, University Of Arkansas, Fayetteville. Human Resources Department
Hr E-Source, January-March 2009, University Of Arkansas, Fayetteville. Human Resources Department
HR e-Source
"Newsletter for staff and faculty at the University of Arkansas."
Mole Street Journal, January 2009, University Of Arkansas, Fayetteville. Dept. Of Chemistry And Biochemistry
Mole Street Journal, January 2009, University Of Arkansas, Fayetteville. Dept. Of Chemistry And Biochemistry
Mole Street Journal
No abstract provided.
Arkansas Soccer Media Guide, 2009, University Of Arkansas, Fayetteville. Athletics Media Relations, University Of Arkansas, Fayetteville. Women's Athletics Department. Women's Communications Office, University Of Arkansas, Fayetteville. Women's Athletics Department. Women's Sports Information Office
Arkansas Soccer Media Guide, 2009, University Of Arkansas, Fayetteville. Athletics Media Relations, University Of Arkansas, Fayetteville. Women's Athletics Department. Women's Communications Office, University Of Arkansas, Fayetteville. Women's Athletics Department. Women's Sports Information Office
Arkansas Soccer
No abstract provided.
Research Experience For Undergraduates Program, 2009, University Of Arkansas, Fayetteville. Dept. Of Chemistry And Biochemistry
Research Experience For Undergraduates Program, 2009, University Of Arkansas, Fayetteville. Dept. Of Chemistry And Biochemistry
Research Experience for Undergraduates
"Supported by the National Science Foundation."
Chancellor's Annual Report, 2009, University Of Arkansas, Fayetteville. Office Of The Chancellor
Chancellor's Annual Report, 2009, University Of Arkansas, Fayetteville. Office Of The Chancellor
Reports
No abstract provided.
Catalog Of Studies, 2008-2009, University Of Arkansas, Fayetteville
Catalog Of Studies, 2008-2009, University Of Arkansas, Fayetteville
Undergraduate Catalog of Studies
No abstract provided.
Education Policy News, Winter 2009, University Of Arkansas, Fayetteville. Dept. Of Education Reform. Office For Education Policy
Education Policy News, Winter 2009, University Of Arkansas, Fayetteville. Dept. Of Education Reform. Office For Education Policy
Education Policy News
No abstract provided.
Good Agricultural And Handling Practices For Grapes And Other Fresh Produce, Pamela L. Brady, Justin R. Morris
Good Agricultural And Handling Practices For Grapes And Other Fresh Produce, Pamela L. Brady, Justin R. Morris
AAES Research Reports and Research Bulletins
In recent years consumption of fresh fruits and vegetables has increased dramatically. This trend has increased the amount of produce being purchased at farmer’s markets, road-side stands, and neighborhood markets since consumers say they feel that the direct contact with growers at these markets makes them better able to assess the quality and safety of the produce. This buying trend has opened new markets to small- and medium-sized farms, which sell at these local outlets.
A Computational Model Of Breast Ducts, Jordan Greenlee
A Computational Model Of Breast Ducts, Jordan Greenlee
Inquiry: The University of Arkansas Undergraduate Research Journal
Ductal Carcinoma represents almost 75% of breast cancer. In this specific type of cancer. malignant cells in the breast ducts invade the surrounding healthy tissue. Almost all researchers who are investigating microwave modality in the area of breast cancer detection employ oversimplified models of the internal structure of the breast. Use of engineered or biologically inaccurate models can render inaccurate results. Therefore. a mathematical biological model was implemented in this work aiming to bridge the gap between physiologists and engineers. The result show that the proposed breast duct model has the capability of modeling the breast ducts of different kinds …
Development Of A Distributed Artificial Neural Network For Hydrologic Modeling, Rebecca Logsdon
Development Of A Distributed Artificial Neural Network For Hydrologic Modeling, Rebecca Logsdon
Inquiry: The University of Arkansas Undergraduate Research Journal
Hydrological models are used to represent the rainfall-runoff and pollutant transport mechanisms within watersheds. Accurate representation of these dynamic and complex natural processes within a watershed is an important step in managing and protecting a watershed Artificial neural network (ANN) models are often used in hydrologic modeling. Typical ANN models are trained to use lumped data. However, watershed characteristics used as inputs in hydrological modeling are spatially and often temporally dynamic. Therefore, a lumped model does not have the ability to represent changes in spatial dynamics of a watershed. Therefore, the purpose of this study was to develop and test …