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Articles 11491 - 11520 of 12893
Full-Text Articles in Entire DC Network
Angiotensin Ii And Aldosterone Increase With Fasting In Breeding Adult Male Northern Elephant Seals (Mirounga Angustirostris), Rudy M. Ortiz, Daniel E. E. Crocker, Dorian S. Houser, Paul M. Webb
Angiotensin Ii And Aldosterone Increase With Fasting In Breeding Adult Male Northern Elephant Seals (Mirounga Angustirostris), Rudy M. Ortiz, Daniel E. E. Crocker, Dorian S. Houser, Paul M. Webb
Arts & Sciences Faculty Publications
The renin‐angiotensin‐aldosterone system (RAAS) appears to contribute significantly to osmoregulation of fasting northern elephant seal (Mirounga angustirostris) pups; however, RAAS has not been characterized in fasting adult seals. Therefore, this study examined the contribution of RAAS to water turnover rates in fasting adult male northern elephant seals. Blood samples were obtained twice during their breeding fast at an interval of 6.5 wk, and water efflux rate was estimated by isotopic dilution during the same period. Serum electrolytes (Na+, K+, Cl−) and osmolality were unaltered between the two sampling periods, indicating ionic and …
Psychology And The Theatre: A Qualitative Experiment In Actor Training, Megan Rebecca Brown
Psychology And The Theatre: A Qualitative Experiment In Actor Training, Megan Rebecca Brown
Theses and Dissertations
Psychology and theatre have a remarkable amount in common. In using the basic concepts and theories of psychology, actors can develop more concrete, logical approaches to characters. This thesis is a summation of the course I developed, "Psychology and the Theatre," which was an attempt to teach students introductory psychology and then experiment with translating those concepts to character analysis and stage performance. Students were taught eight units of psychology: Sensation, Perception, and Memory; Learning; Motivation and Emotion; Development; Freud and Psychodynamic Approaches to Personality; Adlerian Individual Psychology; Love and Social Cognition; and Psychological Disorders. Students were given reading quizzes …
Novel Cancer Therapeutics, The Generation Of Ros, And Cell Survival, Clint Mitchell
Novel Cancer Therapeutics, The Generation Of Ros, And Cell Survival, Clint Mitchell
Theses and Dissertations
The impact of Ad.mda-7 on the survival of renal cell carcinoma lines (RCC), primary renal epithelial cells, glioblastoma multiforme lines (GBM), and primary rodent astrocytes is unknown. The present studies examine whether the GST fusion protein, GST-MDA-7, and the adenovirus, Ad.mda-7, altered the growth and survival of the A498 and UOK121N RCC lines or radiosensitized GBM, respectively. Due to previous findings that the RCC lines, but not primary renal epithelial cells, were resistant to type 5 adenoviral infection, we used purified GST-MDA-7 protein to show that GST-MDA-7, but not GST, caused a dose-dependent reduction in A498 and UOK121N proliferation but …
Degenerate Oligonucleotide Primed - Polymerase Chain Reaction Evaluation And Optimization To Improve Downstream Forensic Str Analysis Of Low Quality/Low Quantity Dna, Lindsay Paige Thompson
Degenerate Oligonucleotide Primed - Polymerase Chain Reaction Evaluation And Optimization To Improve Downstream Forensic Str Analysis Of Low Quality/Low Quantity Dna, Lindsay Paige Thompson
Theses and Dissertations
When forensic biological samples yield low quality/low quantity DNA, thecurrent STR analysis methods do not generate acceptable profiles. Whole genomeamplification can be used to pre-amplify the entire genome for downstream analyses. A commercially available kit for DOP-PCR, a form of WGA, is currently being used in the clinical for downstream single locus targets. Forensic analyses utilize a multiplex amplification. This study determined that the "home brew" created by our lab performs the same as the commercially available kit. Future optimization studies of DOP-PCR can utilize this "home brew". Additionally, this research determined that a 10 second increase in electrokinetic injection …
Sinking Poor Decision-Making With Best Practices: A Case Study Of Artificial Reef Decision-Making In The Florida Keys, Thomas Wayne Williams
Sinking Poor Decision-Making With Best Practices: A Case Study Of Artificial Reef Decision-Making In The Florida Keys, Thomas Wayne Williams
Theses and Dissertations
The natural reefs of the world are experiencing higher use and pressures, resulting in anthropogenic impacts that are deteriorating many coral stands and creating poor water quality. The Florida Keys rely primarily on the reef system that surrounds the archipelago for their socioeconomic health and successful future. The Florida Keys shares the symbiotic relationship of the terrestrial and marine realms with many other states and countries and the experience of higher demand on the resource. Artificial reefs could provide a substitute to the natural reefs for commercial and recreational users. An increased demand for derelict vessels of the U.S. Navy …
Designing Computer Agents With Facial Personality To Improve Human-Machine Collaboration, Brian Esley Tidball
Designing Computer Agents With Facial Personality To Improve Human-Machine Collaboration, Brian Esley Tidball
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The development of computer agents to enhance human-computer interfaces is an evolving field of study. This study examined whether people perceive personality in static digital faces that portray expressions of emotion, and if the digital faces would influence human performance on a simple human-machine collaborative task. The first experiment measured user-perception of personality, based on the emotional expression in two sets of five static digital faces. The results from this first phase revealed that participants provided different ratings, of the Big-Five personality model sub-traits, based on the emotional expression of a static digital face. This indicates a perception of personality …
Digital Channelized Wide Band Receiver Implemented With A Systolic Array Of Multi-Rate Fir Filters, David M. Rodney
Digital Channelized Wide Band Receiver Implemented With A Systolic Array Of Multi-Rate Fir Filters, David M. Rodney
Browse all Theses and Dissertations
This thesis proposes the use of a Systolic Array of Multi-Rate FIR Filters to improve performance by eliminating the requirement of the FFT and De-Multiplexer associated with the conventional receiver while achieving the same functionality. The FFT is a major bottle neck for improving system performance for the conventional DCWBR because many complex multiplications and additions are required. The proposed new architecture is designed and evaluated in MATLAB to illustrate its viability. Two approaches for improved channel arbitration are accessed in MATLAB, namely, channel bin’s rms comparison and parallelism of the Systolic Array Multi-Rate FIR Filters. The FIR filters (high-pass …
Fpga Frequency Domain Based Gps Coarse Acquisition Processor Using Fft, Cyprian D. Sajabi
Fpga Frequency Domain Based Gps Coarse Acquisition Processor Using Fft, Cyprian D. Sajabi
Browse all Theses and Dissertations
The Global Positioning System or GPS is a satellite based technology that has gained widespread use worldwide in civilian and military applications. Direct Sequence Spread spectrum (DSSS) is the method whereby the data transmitted by the satellite and received by user is kept secure, low power and relatively noise-immune. The first step required in the GPS operation is to perform a lock on the incoming signal, both with respect to time synchronization and frequency resolution. Because of the need for reduced time to lock and also reduced hardware, algorithms based in the frequency domain have been developed. These algorithms take …
Developmental Expression Of Calcium-Binding Proteins In The Avcn And Mntb Of Normal Hearing And Congenitally Deaf Mice, John L. Roebel
Developmental Expression Of Calcium-Binding Proteins In The Avcn And Mntb Of Normal Hearing And Congenitally Deaf Mice, John L. Roebel
Browse all Theses and Dissertations
This experiment analyzes synaptic differences in the central auditory pathway between normal hearing and congenitally deaf (dn/dn) mice, and provides valuable insight into central changes that correspond with human congenital deafness. Specifically, this experiment analyzes developmental expression of the Calcium (Ca2+)-binding proteins Calretinin (CR), Calbindin D-28k (CB) and Parvalbumin (PV) in large excitatory synapses in the anteroventral cochlear nucleus (AVCN) and the medial nucleus of the trapezoid body (MNTB) of normal and dn/dn mice. Immunofluorescence imaging with primary antibodies detecting CR, CB or PV was used to analyze the expression of each at 9 days, 13 days, 20 days, 30 …
In Vitro Toxicity Assessment Of Silver Nanoparticles In Rat Alveolar Macrophages, Cataleya Carlson
In Vitro Toxicity Assessment Of Silver Nanoparticles In Rat Alveolar Macrophages, Cataleya Carlson
Browse all Theses and Dissertations
The present study was conducted to assess the toxicity of nanosized silver particles (Ag-15nm, 30nm and 55nm) in rat alveolar macrophages. For toxicity evaluations, cellular morphology, mitochondrial function (MTT assay), membrane leakage (LDH assay) and reactive oxygen species generation (ROS) were assessed after a 24h under control and exposed conditions. The morphological appearance of control and exposed cells were observed by an inverted, phase contrast microscope and the uptake of nanoparticles was observed using the CytoViva Ultra Resolution Imaging (URI) system. Morphological images captured at 100x magnification demonstrated that nanoparticle-exposed cells at higher doses became abnormal in size, and most …
Cognitively-Engineered Multisensor Data Fusion Systems For Military Applications, Amanda Christine Muller
Cognitively-Engineered Multisensor Data Fusion Systems For Military Applications, Amanda Christine Muller
Browse all Theses and Dissertations
The fusion of imagery from multiple sensors is a field of research that has been gaining prominence in the scientific community in recent years. The technical aspects of combining multisensory information have been and are currently being studied extensively. However, the cognitive aspects of multisensor data fusion have not received so much attention. Prior research in the field of cognitive engineering has shown that the cognitive aspects of any human-machine system should be taken into consideration in order to achieve systems that are both safe and useful. The goal of this research was to model how humans interpret multisensory data, …
The Relationship Between Lactic Acid, Reactive Oxygen Species And The Hypoxia-Induced Acidification Seen In Chemosensitive Neurons Of The Nucleus Tractus Solitarius (Nts), Trevor Downing
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The NTS is one of many sites of chemoreception meaning that it responds to changes in CO2 and pH. NTS neurons also acidify approximately 0.13 pH units in response to hypoxia. Experiments involved brainstem slices exposed to a control hypoxic bout followed by hypoxia in conjunction with different drugs. The drugs included fluorocitrate, 4-hydroxycinnamate, oxygen-glucose deprivation and iodoacetate. Iodoacetate produced the strongest blunting of the hypoxia-induced acidification and decreased the response by ~53%. Results from the studies using the superoxide probe DHE showed an increase in the levels of ROS during the hypoxic exposure prior to reoxygenation. Two ROS scavengers …
Electronic Properties Of Silicon-Based Nanostructures, Gian Giacomo Guzman-Verri
Electronic Properties Of Silicon-Based Nanostructures, Gian Giacomo Guzman-Verri
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We have developed a new unifying tight-binding theory that can account for the electronic properties of recently proposed Si-based nanostructures, namely, Si graphene-like sheets and Si nanotubes. We considered the sp2s* and sp3 models up to first- and second-nearest neighbors, respectively. Our results show that the corresponding Si nanotubes follow the so-called Hamada's rule. Comparison to a recent ab initio calculation is made.
Susceptibility Of Primary Eosinophils To Infection With Hiv-1 Strain Htlv-Iiib, Jai Govind Marathe
Susceptibility Of Primary Eosinophils To Infection With Hiv-1 Strain Htlv-Iiib, Jai Govind Marathe
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Over the past two decades, much research has been done in the field of human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS). However, many of the aspects of pathogenesis of HIV infection and its persistence in the body, despite treatment, remain a mystery. Recent evidence suggests that HIV positive patients develop eosinophilia, especially in the later stages of infection and AIDS. Eosinophils are CD4 positive cells that have the potential to be infected by HIV. Studies have shown that an eosinophilic cell line, AML14.3D10, can be productively infected with a T-cell tropic, CXCR4-using (X4) strain of HIV-1. In this …
A Formal Language Approach For Detecting Texture Paths And Patterns In Images, Prithviraj S. Patil
A Formal Language Approach For Detecting Texture Paths And Patterns In Images, Prithviraj S. Patil
Browse all Theses and Dissertations
This Master thesis considers the use of formal languages representation for image processing, especially texture patterns and determining texture paths in them. The texture paths are detected and extracted by using image processing techniques, such as image segmentation to isolate regions of interest, and then the extraction of repeating textures. The detection of the texture blocks is obtained by recursively using 27 X 27, 9 X 9, and 3 X 3 windows. Predefined repeating texture patterns are also searched for in each of the sets. For each set of texture blocks with similar or same characteristics, curve fitting techniques are …
Feasibility Analysis Of The Strontium Ratio Obtained From Pennsylvanian Chondricthian Dentary, Cullen John Erbacher
Feasibility Analysis Of The Strontium Ratio Obtained From Pennsylvanian Chondricthian Dentary, Cullen John Erbacher
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This research was undertaken to determine the amount of time between transgressive and regressive sequences. One of the methods used to determine the amount of missing time in an unconformity is the 87Sr / 86Sr ratio. The 87Sr / 86Sr ratio will be high around brackish and freshwater environments while it will be lower in open marine conditions. Limestones and their constituent parts are susceptible to diagenetic processes that can contaminate or obliterate isotope values contained within the rocks. The purpose of this research was to discover if reliable isotope information could be pulled from Pennsylvanian aged shark teeth. Nine …
Phenotypic Characterization Of Escherichia Coli Strains Taken From Human Intestinal And Urinary Tracts, Kruthi Murthy
Phenotypic Characterization Of Escherichia Coli Strains Taken From Human Intestinal And Urinary Tracts, Kruthi Murthy
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Escherichia coli (E. coli) is a gram negative bacterium commonly found as a commensal in the intestinal tract of humans and other warm blooded animals. The commensal strains of E. coli are non-pathogenic and do not cause an infection in the host. However, some strains of E. coli are pathogenic and can cause several diseases in humans that include neonatal meningitis, intestinal infections and urinary tract infections. Almost 80-85% of the uncomplicated urinary tract infections are caused by uropathogenic E. coli. Our project involved the characterization of 12 strains of E. coli, isolated from humans in health and disease. These …
Coronary Heart Disease Risk Stratification In Full-Time Miami Valley Hospital Employees, Vicki K. Streng
Coronary Heart Disease Risk Stratification In Full-Time Miami Valley Hospital Employees, Vicki K. Streng
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Heart disease is the number one killer in the United States (American Heart Association, 2005). The purpose of this study was to demonstrate the results of a twelve-week exercise program on coronary heart disease risk factors in full-time hospital employees. Methods: The participants were given cardiovascular, weight training, and flexibility recommendations to follow during a twelve-week period. The main heart disease risk factors measured before and after the completion of the exercise program were blood pressure, total cholesterol, HDL-cholesterol, and body mass index. The information was put into the Framingham Heart Score to estimate the participants’ 10-year risk of developing …
Determining The Effect Of Substitutions At Alanine 47 In Synechococcus Pcc6301 Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase (Rubisco), Christopher R. Salyer
Determining The Effect Of Substitutions At Alanine 47 In Synechococcus Pcc6301 Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase (Rubisco), Christopher R. Salyer
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Mutant screening and genetic selection in various organisms have shown that residues far from the active site of ribulose-1,5-bisphosphate carboxylase/oxygenase (RubisCO) can influence catalytic efficiency and CO2/O2 specificity. Because RubisCO catalyzes the rate-limiting step of photosynthesis, further study of these sites distant from the primary reaction center may provide the necessary information for engineering an increase in primary productivity of crop plants. In a previously described system of random mutagenesis and bioselection (Smith, 2002), the RubisCO genes from the cyanobacterium Synechococcus PCC6301, were randomly mutated and introduced into the photosynthetic bacterium Rhodobacter capsulatus. An A47T substitution resulted in a very …
Pyrrole Carboxamides As Potential Carbonic Anhydrase Inhibitors, Nishrin Ismailbhai Marketwala
Pyrrole Carboxamides As Potential Carbonic Anhydrase Inhibitors, Nishrin Ismailbhai Marketwala
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Carbonic anhydrases (CAs) are metalloenzymes that catalyze the reversible interconversion of CO2 and bicarbonate. We recently initiated a screen of a broad range of indoles and pyrroles possessing acyl-, carboxyl-, amido-, sulfonyl-, sulfamyl- and oxime- functionalities as potential inhibitors of á-CA II isozyme. As slight inhibition was observed in the case of 2-carboxamido-1-(phenylsulfonyl)pyrrole, and aware that pyrrole carboxamide derived sulfonamides had been previously demonstrated to possess CA inhibition, we sought to prepare a series of 1-(phenylsulfonyl)pyrrole-2-carboxamides but lacking a sulfonamide moiety to ascertain if the activity in our case might be due to a hitherto unrecognized pyrrole pharmacophore. To this …
Kinetics And Passive Protection Efficacy Induced By Purified Ava Human Immunoglobulin G In Rabbits Against A Bacillus Anthracis Aerosol Challenge, Jennifer Lee Plahovinsak
Kinetics And Passive Protection Efficacy Induced By Purified Ava Human Immunoglobulin G In Rabbits Against A Bacillus Anthracis Aerosol Challenge, Jennifer Lee Plahovinsak
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The present study was conducted to determine the half-life, assess the toxicity, and passive protection efficacy of purified immunoglobulin G (IgG) from Anthrax Vaccine Adsorbed (AVA) vaccinated human donors. Half-life determinations were calculated from the reportable values obtained using the anti-PA ELISA assay and the Centers for Disease Control's (CDC) "ELISA for Windows" software. For toxicity evaluations animals were observed clinical for one hour post administration and for 14-days post-treatment. The protection efficacy was determined based upon the mortality results from a lethal Bacillus anthracis aerosol challenge. While no protection was achieved in this delayed exposure scenario, the study yielded …
The Modeling Of Solubility, Frank Christopher Campanell
The Modeling Of Solubility, Frank Christopher Campanell
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In this work the solubilities of gases in liquids and liquids in liquids were modeled using both physical properties and topological descriptors of the solutes. Quantitative structure-activity relationship (QSAR) methods were employed to create single-linear regression (SLR) and multiple-linear regression (MLR) models of the solubilities. Factor analysis was employed to determine the number of significant factors present in the solubilities. The solubilities of monoalcohols in water, halogenated alkanes in water, gases in water, gases in alkanes, and gases in alcohols were examined and modeled.
Diatom Paleolimnological Record Of Holocene Climatic And Environmental Change In The Altai Mountains, Siberia, Karlyn S. Westover, Sherilyn C. Fritz, Tatyana A. Blyakharchuk, Herbert E. Wright
Diatom Paleolimnological Record Of Holocene Climatic And Environmental Change In The Altai Mountains, Siberia, Karlyn S. Westover, Sherilyn C. Fritz, Tatyana A. Blyakharchuk, Herbert E. Wright
Department of Earth and Atmospheric Sciences: Faculty Publications
The sedimentary diatom records of three shallow lakes in the Altai Mountains, southern Siberia, were examined to assess the nature and timing of Holocene environmental changes. Few paleoenvironmental records, especially reconstructions not based on pollen, have been reported from this region. The lakes differ in elevation, annual precipitation, and catchment vegetation. Diatom assemblages in all lakes were dominated for the entire period of record by small benthic species of Pseudostaurosira Williams & Round, Staurosira Ehrenberg, and Staurosirella Williams & Round. Planktonic taxa only occur in very low abundances (<5%). The most diverse diatom flora was found in Dzhangyskol, which is situated at the lowest elevation within a forested catchment. A lack of detailed information on the ecological preferences of the dominant taxa and the complexity of environmental drivers make direct interpretation of the diatom record difficult. However, other proxies suggest that dramatic shifts in dominance between Staurosira elliptica and Staurosirella pinnata in Grusha Ozero reflect millennial-scale variability …5%).>
Eigenvalue Comparisons For Boundary Value Problems Of The Discrete Beam Equation, Jun Ji, Bo Yang
Eigenvalue Comparisons For Boundary Value Problems Of The Discrete Beam Equation, Jun Ji, Bo Yang
Faculty Articles
We study the behavior of all eigenvalues for boundary value problems of fourth-order difference equations Delta(4)yi = lambda a(i+2)y(i+2), - 1= b(j), 1
Misogyny, Androgyny, And Sexual Harassment: Sex Discrimination In A Gender-Deconstructed World, Meredith M. Render
Misogyny, Androgyny, And Sexual Harassment: Sex Discrimination In A Gender-Deconstructed World, Meredith M. Render
Articles
Understanding sexual harassment as a form of discrimination because of sex has grown increasingly difficult as our understandings of both gender and sex have grown richer and more complex This piece offers a new descriptive model for understanding gender bias in the context of sexual harassment law The piece argues that two separate sets of ideas about gender have intersected to produce a new picture of gender equality one that is separated from a binary model of men and women but that nonetheless continues to disadvantage women as compared to men The paper refers to this idea as the androcentricassimilation …
Developing A More Holistic Approach To Water Management In The United States, William L. Andreen
Developing A More Holistic Approach To Water Management In The United States, William L. Andreen
Articles
Americans have generally treated water just like land and other natural resources as a commodity for human use manipulation and degradation Little thought or significance at least until relatively recently was attached to the adverse environmental impact of reduced stream flows and the damage caused by hydrologic modifications such as dams and by various development activities that disrupt and pollute aquatic habitats The United States therefore faces the difficult challenge of trying at a late date to bring together three separate but inextricably connected disciplines one focusing on water use one on water quality and yet another focusing on development …
Lab Testing And Field Implementation Of Soil Flushing, Linda S. Lee, Xihong Zhai, Jaesun Lee
Lab Testing And Field Implementation Of Soil Flushing, Linda S. Lee, Xihong Zhai, Jaesun Lee
JTRP Technical Reports
Many of the Indiana Department of Transportation (INDOT) sites are contaminated with aromatic hydrocarbons and chlorinated solvents; these contaminants often occur in the form of light non-aqueous phase liquids (LNAPLs) or dense non-aqueous phase liquids (DNAPLs). Considerable effort has recently been focused on developing in-situ technologies for removing or destroying NAPL source zones, and several potentially viable methods have emerged including cosolvent-enhanced source zone removal. Most recently, site-specific remedial designs involving a combination of in-situ methods (often referred to as a treatment train) have been proposed for which data are still sparse. The primary goal of the laboratory experiments is …
Study Of Salt Wash Water Toxicity On Wastewater Treatment, Mostafa F. Hashad, Surabhi Sharma, Loring F. Nies, James E. Alleman
Study Of Salt Wash Water Toxicity On Wastewater Treatment, Mostafa F. Hashad, Surabhi Sharma, Loring F. Nies, James E. Alleman
JTRP Technical Reports
This research effort focused on evaluating the toxicity of the saline waste water generated from washing of Indiana Department of Transportation (INDOT) deicing trucks and to study the feasibility of discharging it into wastewater treatment plants. Performance of activated sludge treating wastewater under varying levels of salt concentration was studied by measuring the Chemical Oxygen Demand (COD), activated sludge oxygen uptake rate (OUR) and Turbidity. For the COD tests, wastewater was tested with salt concentrations ranging from 0 mg/L – 1500 mg/L. Within this range there is no impact of salt on COD stabilization, suggesting that the microorganisms are not …
Filter Performance And Design For Highway Drains, Sangho Lee, Philippe L. Bourdeau
Filter Performance And Design For Highway Drains, Sangho Lee, Philippe L. Bourdeau
JTRP Technical Reports
The research is an investigation of soil filtration by geotextile fabrics, with the ultimate objective of improving design and long-term performance of underdrain systems in Indiana highways. Experiments were conducted in the laboratory using the best available techniques, Flexible Wall Gradient Ratio Test and Rapid Retention Test, in order to assess soil-filter compatibility and monitor geotextile clogging, for a range of materials and testing conditions. Field information was also collected and samples from highway reconstruction project were examined for their long-term performance. The main findings relate to the influence of the amounts of silt and clay and the state of …
Remediation Of Aromatic Hydrocarbons In Low Permeability Soils: Updating The Remediation Decision Tree (Synthesis Study), Inez Hua, Andy Hopf
Remediation Of Aromatic Hydrocarbons In Low Permeability Soils: Updating The Remediation Decision Tree (Synthesis Study), Inez Hua, Andy Hopf
JTRP Technical Reports
Because of the large number of technologies for in situ remediation, the very different types of contaminants to which these technologies are applicable, and the wide range of field conditions, it can be difficult to choose an optimal technology for a specific site. Sorting and prioritizing the various factors which contribute to the success of a particular clean-up can be daunting. Furthermore, non-technical factors, such as those in the legal, political, or financial realm, may also influence which technology is ultimately chosen. Most in situ treatment methods are effective in permeable soil. However, much of Indiana soil is low-permeability, so …