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2014

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Effects Of Cryptogamic Crusts On Water Infiltration And Evapora· Lion Rates On Desert Soils, Eric Edgley Feb 2014

Effects Of Cryptogamic Crusts On Water Infiltration And Evapora· Lion Rates On Desert Soils, Eric Edgley

Journal of Undergraduate Research

The purpose of this study is to evaluate the impact of microbiotic (also called cryptogamic) crusts on soil surfaces on water infiltration and evaporative rates on a soil developed from fine textural lake sediments in Utah County, Utah. Twenty study plots (10 with cryptogamic cover and 10 without) are adjacent to the Camp Floyd Cemetery near Cedar Fort, Utah. They were established to evaluate the effect of cryptogamic cover on rates of water infiltration. Two aliquots of 150 ml of water were applied sequentially to each plot through standing water infiltration rings. The infiltration time of each aliquot was recorded. …

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Identification Of A Rat Gene Regulated By Dietary Selenium, Chris Cowdell Feb 2014

Identification Of A Rat Gene Regulated By Dietary Selenium, Chris Cowdell

Journal of Undergraduate Research

Various genes have been discovered which are regulated by the dietary Intake of the trace element Selenium (Se).Some of these genes code for such enzymes as glutathione peroxidase (GP J Type I iodothyronine 5′ delodinase (IDI), and selenoproteln P (Se-P). GP, is an enzyme (a selenoenzyme) which Incorporates Se in place of sulfur within residues of the amino acid cysteine. GP, Is active In the assistance of free radical elimination throughout the body by converting hydrogen peroxide (H,02 ) to oxygen (02) and water (H20). IDI is a selenoenzyme which catalyzes the conversion of the thyroid hormone thyroxine (T 4) …

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Chelex, Guanidine, And Phenol/Chloroform: A Comparison Of Extractions For Ancient Dna From Dentin Powder, J. Daniel Rasband Feb 2014

Chelex, Guanidine, And Phenol/Chloroform: A Comparison Of Extractions For Ancient Dna From Dentin Powder, J. Daniel Rasband

Journal of Undergraduate Research

Several different methods have been employed in the extraction and amplification of ancient DNA (aDNA). The work in this thesis Is an effort to compare three popular extraction techniques, chelex, guanidine/ silica slurry, and phenol/chloroform, as applied to extracting DNA from the dentin of ancient teeth. Modern and ancient samples were extracted using the three techniques. The extract was then amplified using the polymerase chain reaction (PCR). The data show that of the three extraction procedures, the most favorable results were obtained using the guanidine/silica slurry extraction technique, producing consistently good amplification. The phenol/chloroform extraction was mildly successful, showing amplification …

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Byu Microscopy Laboratory /Public School Partnership Curriculum Development, Judy L. Pickett Feb 2014

Byu Microscopy Laboratory /Public School Partnership Curriculum Development, Judy L. Pickett

Journal of Undergraduate Research

For the past five years Dr. John Gardner has been developing a microscopy outreach program for students throughout the state of Utah. I became involved in the program in the fall of 1993 and have been heavily involved in program development since that time.

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The Genotoxicitv Of 1.4-Dioxane Using The Single Cell Gel, Edward Harris Feb 2014

The Genotoxicitv Of 1.4-Dioxane Using The Single Cell Gel, Edward Harris

Journal of Undergraduate Research

1.4-Dioxane (DX), a common ingredient in solvents for oils, waxes and many other organic compounds, has an undetermined genotoxicity. It has been reported to be both a nongenotoxic (Salmonella and Cl-IO chromosome aberration assays) and a genotoxic compound (1). Previous experiments carried out indicate that Sherman strain and Sprague-Dawley rats receiving 0.1% to 1% DX in drinking water develop hepatic/renal damage and hepatocellular and nasal carcinoma respectively (4,7). In this preliminary study, the single cell gel assay was used to determine possible DNA damage caused by DX. Human Raji Burkitt’s lymphoma cells were grown In the presence of various concentrations …

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Determination Of The Cell Tvpe(S) In The Rat Adrenal Zona Glomerulosa That Release Interleukin-6, Michael F. Erickson Feb 2014

Determination Of The Cell Tvpe(S) In The Rat Adrenal Zona Glomerulosa That Release Interleukin-6, Michael F. Erickson

Journal of Undergraduate Research

Recent studies have shown that the cytokines interleukin-6 (IL-6) and tumor necrosis factor (TNF) are produced by cells found in the zonaglomerulosa of the rat adrenal cortex (I ,2). These cytokines modify adrenal hormone release gland. Specifically, IL-6 stimulates the release of glucocorticoids from the zona fasciculata/reticularis (3) and TNF inhibits the release of aldosterone from the zona glomerulosa (4). It is of interest that during times of traumatic injury or septic shock the serum and tissue levels of these cytokines increase. This increased cytokine level is partly responsible for the lethal effects of septic shock (including severe hypotension) since …

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The Daily Egyptian, February 12, 2014, Daily Egyptian Staff Feb 2014

The Daily Egyptian, February 12, 2014, Daily Egyptian Staff

February 2014

No abstract provided.

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Spartan Daily, February 12, 2014, San Jose State University, School Of Journalism And Mass Communications Feb 2014

Spartan Daily, February 12, 2014, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 142, Issue 7

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A Review Of Air–Ice Chemical And Physical Interactions (Aici): Liquids, Quasi-Liquids, And Solids In Snow, T. Bartels-Rausch, H. -W. Jacobi, T. F. Kahan, J. L. Thomas, E. S. Thomson, J. P. D. Abbatt, M. Ammann, J. R. Blackford, H. Bluhm, C. Boxe, F. Domine, M. M. Frey, I. Gladich, M. I. Guzmán, D. Heger, Th. Huthwelker, P. Klán, W. F. Kuhs, M. H. Kuo, S. Maus, S. G. Moussa, V. F. Mcneill, J. T. Newberg, J. B. C. Pettersson, M. Roeselová, J. R. Sodeau Feb 2014

A Review Of Air–Ice Chemical And Physical Interactions (Aici): Liquids, Quasi-Liquids, And Solids In Snow, T. Bartels-Rausch, H. -W. Jacobi, T. F. Kahan, J. L. Thomas, E. S. Thomson, J. P. D. Abbatt, M. Ammann, J. R. Blackford, H. Bluhm, C. Boxe, F. Domine, M. M. Frey, I. Gladich, M. I. Guzmán, D. Heger, Th. Huthwelker, P. Klán, W. F. Kuhs, M. H. Kuo, S. Maus, S. G. Moussa, V. F. Mcneill, J. T. Newberg, J. B. C. Pettersson, M. Roeselová, J. R. Sodeau

Chemistry Faculty Publications

Snow in the environment acts as a host to rich chemistry and provides a matrix for physical exchange of contaminants within the ecosystem. The goal of this review is to summarise the current state of knowledge of physical processes and chemical reactivity in surface snow with relevance to polar regions. It focuses on a description of impurities in distinct compartments present in surface snow, such as snow crystals, grain boundaries, crystal surfaces, and liquid parts. It emphasises the microscopic description of the ice surface and its link with the environment. Distinct differences between the disordered air–ice interface, often termed quasi-liquid …

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The Guardian, February 12, 2014, Wright State University Student Body Feb 2014

The Guardian, February 12, 2014, Wright State University Student Body

The Guardian Student Newspaper

Twelve page issue of The Guardian, the official student-run newspaper for Wright State University. The Guardian has been published regularly since March of 1965.

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In-Package Nonthermal Plasma Degradation Of Pesticides On Fresh Produce, N. Misra, Shashi Pankaj, Tony Walsh, Finbarr O'Regan, Paula Bourke, Patrick J. Cullen Feb 2014

In-Package Nonthermal Plasma Degradation Of Pesticides On Fresh Produce, N. Misra, Shashi Pankaj, Tony Walsh, Finbarr O'Regan, Paula Bourke, Patrick J. Cullen

Articles

In-package nonthermal plasma (NTP) technology is a novel technology for the decontamination of foods and biological materials. This study presents the first report on the potential of the technology for the degradation of pesticide residues. A cocktail of pesticides, namely Azoxystrobin, Cyprodinil, Fludioxonil and Pyriproxyfen was tested on strawberries. The concentrations of these pesticides were monitored in priori and post- plasma treatment using GC-MS/MS. An applied voltage and time dependent degradation of the pesticides was observed for treatment voltages of 60, 70 and 80 kV and treatment durations ranging from 1 to 5 min, followed by 24 h in-pack storage. …

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An Injectable, Calcium Responsive Composite Hydrogel For The Treatment Of Acute Spinal Cord Injury, Christopher A. Mckay, Rebecca D. Pomrenke, Joshua S. Mclane, Nicholas J. Schaub, Elise K. Desimone, Lee A. Ligon, Ryan J. Gilbert Feb 2014

An Injectable, Calcium Responsive Composite Hydrogel For The Treatment Of Acute Spinal Cord Injury, Christopher A. Mckay, Rebecca D. Pomrenke, Joshua S. Mclane, Nicholas J. Schaub, Elise K. Desimone, Lee A. Ligon, Ryan J. Gilbert

Chemical and Biochemical Engineering Faculty Research & Creative Works

Immediately following spinal cord injury, further injury can occur through several secondary injury cascades. As a consequence of cell lysis, an increase in extracellular Ca2+ results in additional neuronal loss by inducing apoptosis. Thus, hydrogels that reduce extracellular Ca2+ concentration may reduce secondary injury severity. The goal of this study was to develop composite hydrogels consisting of alginate, chitosan, and genipin that interact with extracellular Ca2+ to enable in situ gelation while maintaining an elastic modulus similar to native spinal cord (∼1000 Pa). It was hypothesized that incorporation of genipin and chitosan would regulate hydrogel electrostatic characteristics …

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Investigating Habits: Strategies,Technologies And Models, Kyle S. Smith, Ann M. Graybiel Feb 2014

Investigating Habits: Strategies,Technologies And Models, Kyle S. Smith, Ann M. Graybiel

Dartmouth Scholarship

Understanding habits at a biological level requires a combination of behavioral observations and measures of ongoing neural activity. Theoretical frameworks as well as definitions of habitual behaviors emerging from classic behavioral research have been enriched by new approaches taking account of the identification of brain regions and circuits related to habitual behavior. Together, this combination of experimental and theoretical work has provided key insights into how brain circuits underlying action-learning and action-selection are organized, and how a balance between behavioral flexibility and fixity is achieved. New methods to monitor and manipulate neural activity in real time are allowing us to …

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The Murray Ledger And Times, February 12, 2014, The Murray Ledger And Times Feb 2014

The Murray Ledger And Times, February 12, 2014, The Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

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Réhabilitation Esthétique Et Fonctionnelle Globale Par La Prothèse Fixée D’Un Cas De Bruxisme, Narjes Hassen, Ramy Oualha, Lamia Oualha, Samir Boukottaya, Nabiha Douki Feb 2014

Réhabilitation Esthétique Et Fonctionnelle Globale Par La Prothèse Fixée D’Un Cas De Bruxisme, Narjes Hassen, Ramy Oualha, Lamia Oualha, Samir Boukottaya, Nabiha Douki

International Arab Journal of Dentistry

Bruxism is an unconscious behavior characterized by contractions of the masticatory muscles outside the physiological functions. The dentist is required to manage the oral consequences of bruxism; the most remarkable one is dental wear. When the dental degree of damage becomes important, a total fixed prosthetic treatment must be conceived.The prosthetic rehabilitation aims at restoring all the occlusal functions (centering, guidance), to allow the entire masticatory system to operate with minimal constraints. It must redefine esthetic criteria, reestablish a good functional occlusal stability and optimize the functions of the masticatory system. These basic concepts are illustrated by the presentation of …

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Structural Dynamics Of A Mitochondrial Trna Possessing Weak Thermodynamic Stability, Hari Bhaskaran, Takaaki Taniguchi, Takeo Suzuki, Tsutomu Suzuki, John J. Perona Feb 2014

Structural Dynamics Of A Mitochondrial Trna Possessing Weak Thermodynamic Stability, Hari Bhaskaran, Takaaki Taniguchi, Takeo Suzuki, Tsutomu Suzuki, John J. Perona

Chemistry Faculty Publications and Presentations

Folding dynamics are ubiquitously involved in controlling the multivariate functions of RNAs. While the high thermodynamic stabilities of some RNAs favor purely native states at equilibrium, it is unclear whether weakly stable RNAs exist in random, partially folded states or sample well-defined, globally folded conformations. Using a folding assay that precisely tracks the formation of native aminoacylable tRNA, we show that the folding of a weakly stable human mitochondrial (hmt) leucine tRNA is hierarchical with a distinct kinetic folding intermediate. The stabilities of the native and intermediate conformers are separated by only about 1.2 kcal/mol, and the species are readily …

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Byu Microscopy Laboratory /Public School Partnership Curriculum Development, Judy L. Pickett Feb 2014

Byu Microscopy Laboratory /Public School Partnership Curriculum Development, Judy L. Pickett

Journal of Undergraduate Research

For the past five years Dr. John Gardner has been developing a microscopy outreach program for students throughout the state of Utah. I became involved in the program in the fall of 1993 and have been heavily involved in program development since that time.

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The Location And Role Of Phosphate In Horse Spleen Ferritin (Hosf), Joseph Johnson Feb 2014

The Location And Role Of Phosphate In Horse Spleen Ferritin (Hosf), Joseph Johnson

Journal of Undergraduate Research

Although iron Is necessary for life, It Is toxic If left free In most organIsms. To control Its toxic effects and still have iron available for biological use, organisms use ferrltins. Ferritins are similar throughout the biological world. Each ferritin is a roughly spherical, hollow protein with a thin, negatively charged shell that can hold up to 4500 Iron atoms. This shell is composed of 24 nearly Identical subunits. Junctions between three or four subunits form channels, 3-fold or 4-fold respectively, that traverse the protein shell. The hydrophilic 3-fold channels are believed to be the key pathway for the uptake …

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Faculty Promotions, Tenure Announced, University Communications, Illinois Wesleyan University Feb 2014

Faculty Promotions, Tenure Announced, University Communications, Illinois Wesleyan University

News and Events (Discontinued Series)

No abstract provided.

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Regional Impact Of Submarine Canyons During Seasonal Upwelling, Thomas Connolly, Barbara Hickey Feb 2014

Regional Impact Of Submarine Canyons During Seasonal Upwelling, Thomas Connolly, Barbara Hickey

Faculty Publications

A numerical model of the northern California Current System along the coasts of Washington and British Columbia is used to quantify the impact of submarine canyons on upwelling from the continental slope onto the shelf. Comparisons with an extensive set of observations show that the model adequately represents the seasonal development of near-bottom density, as well as along-shelf currents that are critical in governing shelf-slope exchange. Additional model runs with simplified coastlines and bathymetry are used to isolate the effects of submarine canyons. Near submarine canyons, equatorward flow over the outer shelf is correlated with dense water at canyon heads …

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Cholera Transmission Dynamic Models For Public Health Practitioners, Isaac Chun-Hai Fung Feb 2014

Cholera Transmission Dynamic Models For Public Health Practitioners, Isaac Chun-Hai Fung

Epidemiology: Faculty Publications (2002-2018)

Great progress has been made in mathematical models of cholera transmission dynamics in recent years. However, little impact, if any, has been made by models upon public health decision-making and day-to-day routine of epidemiologists. This paper provides a brief introduction to the basics of ordinary differential equation models of cholera transmission dynamics. We discuss a basic model adapted from Codeço (2001), and how it can be modified to incorporate different hypotheses, including the importance of asymptomatic or inapparent infections, and hyperinfectious V. choleraeand human-to-human transmission. We highlight three important challenges of cholera models: (1) model misspecification and parameter uncertainty, …

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Periodontal Health Status Of Saudi Patients Undergoing Orthodontic Treatment, Azzam Al-Jundi Feb 2014

Periodontal Health Status Of Saudi Patients Undergoing Orthodontic Treatment, Azzam Al-Jundi

International Arab Journal of Dentistry

The growing awareness about dental aesthetics and functionality in the general population has led to more and more people seeking orthodontic treatment.The patient’s ability to achieve and maintain good overall oral hygiene and prevent periodontal disease is fundamental while undergoing orthodontic treatment. This study was done to evaluate the periodontal health status of Saudi patients scheduled for fixed orthodontic treatment.Fifty patients (12-26 years old) were selected from orthodontic clinics of King Abdul-Aziz Medical City of National Guard, Riyadh, Saudi Arabia. The periodontal health status of the patients was evaluated using the plaque index (PI), the orthodontic plaque index (OPI) and …

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Spartan Daily, February 11, 2014, San Jose State University, School Of Journalism And Mass Communications Feb 2014

Spartan Daily, February 11, 2014, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 142, Issue 6

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Doctors Exploring The Edges Of Neuroscience, Uab Medicine Magazine Feb 2014

Doctors Exploring The Edges Of Neuroscience, Uab Medicine Magazine

Browse All News

No abstract provided.

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The Advocate, February 11, 2014, Minnesota State University Moorhead Feb 2014

The Advocate, February 11, 2014, Minnesota State University Moorhead

The Advocate

No abstract provided.

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Quantum Interstate Phase Differences And Multiphoton Processes: Application To Multi-Level Models Of Time Dependent Energy Absorption, John Sutton Welch Feb 2014

Quantum Interstate Phase Differences And Multiphoton Processes: Application To Multi-Level Models Of Time Dependent Energy Absorption, John Sutton Welch

Journal of Undergraduate Research

During the last year I have examined numerical solutions and analytical approximations of the time-dependent Schrodinger equation for quantum systems with two, three and four levels which are perturbed by a classical sinusoidal field, I have been particularly interested in understanding the meaning and effects of the quantum phase on probability changes within the quantum system and have recently submitted my findings to the Journal of Chemical Physics and plan to present a poster of this and current work at the American Chemical Society meeting next April in Anaheim, California.

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Phosducins: Evidence For The Evolution Of New Proteins Through Gene Duplication, Tim Rand, Dr. Barry Willardson Feb 2014

Phosducins: Evidence For The Evolution Of New Proteins Through Gene Duplication, Tim Rand, Dr. Barry Willardson

Journal of Undergraduate Research

The theory of evolution by natural selection is arguably the most important scientific theory ever formulated. Its importance has not been manifest in an “ooh, ah” technological way—it doesn’t empower us to fly airplanes or to illuminate streets at night—but no scientist really thinks technology is the sine qua non of science anyway. The really big theories are the ones that change our thinking, rather than the way we get around or see at night. The theory of evolution changed the way we think about life itself. Interestingly, our acceptance of evolution is based mainly on its elegance. As far …

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Mapping Of The Immune Response Gene(S) Controlling Susceptibility To Murine Experimental Orchitis, Randall Roper Feb 2014

Mapping Of The Immune Response Gene(S) Controlling Susceptibility To Murine Experimental Orchitis, Randall Roper

Journal of Undergraduate Research

The research project I proposed entailed mapping the gene or genes that control susceptibility to Murine Experimental Orchitis by using a large backcross population of 110 animals. These animals have been generated by obtaining an Fl population from the susceptible SJL mice and resistant B lO.S mice and crossing the susceptible Fl population with disease resistant BlO.S mice. Through the use of a histological report of the susceptibility of the large backcross population to Experimental Allergic Orchitis, and the use of microsatellite and RAPD markers to identify distinguishing polymorphisms, the gene may be linked to a specific chromosome of the …

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Ancient “Gene-Ology” Leads To Improvements In Ancient Dna Ex· Traction Methods And Pcr Amplication Techniques, Blake C. Ballif Feb 2014

Ancient “Gene-Ology” Leads To Improvements In Ancient Dna Ex· Traction Methods And Pcr Amplication Techniques, Blake C. Ballif

Journal of Undergraduate Research

During the past decade, the development of ancient DNA research has left modern science seemingly on the verge of breaching the barrier between the world we live in and the ancient past. Archaeologists, anthropologists, and molecular biologists alike have become increasingly more aware of the understanding that can be gleaned from genetic studies of ancient populations and extinct species. Although ancient DNA has remarkably been isolated and amplified from organisms hundreds, thousands, and even millions of years old 1·3, these breakthroughs represent in most cases a single ancient individual or animal with important yet modest amounts of data. In order …

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The Impact Of A Naturally Fragmented Habitat On The Distribution And Breeding Biology Of House Wrens, Suzanne Reeve, Dr. Brian A. Maurer Feb 2014

The Impact Of A Naturally Fragmented Habitat On The Distribution And Breeding Biology Of House Wrens, Suzanne Reeve, Dr. Brian A. Maurer

Journal of Undergraduate Research

The distribution and life history characteristics of organisms can be significantly affected by structural variation in their habitats. One major type of variation is spatial arrangement and whether a habitat extends continuously or exists in small, fragmented patches. The effects of this variation have been documented in organisms from fruit flies (Jaenike 1978) to Amazonian beetles (Klein 1989) to songbirds (Andren and Angelstam 1988, Gates and Gysel 1978). According to research findings and theoretical prediction, many significant consequences of habitat fragmentation are caused by an increased ratio of habitat edge length to area. Studies indicate that increased edge length creates …

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