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2013

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Coming Full Circle, University Of Dayton Aug 2013

Coming Full Circle, University Of Dayton

Blog Archive: River Reflections at the University of Dayton

This week marks the first week of my last year as a "UD" River Steward. Of course once a Stew, always a Stew, so I look forward to continuing my Stewardship for the rest of my life—in Dayton or elsewhere.


Research Tools To Investigate Movements, Migrations, And Life History Of Sturgeons (Acipenseridae), With An Emphasis On Marine-Oriented Populations, Troy C. Nelson, Phaedra Doukakis, Steven T. Lindley, Andrea D. Schreier, Joseph E. Hightower, Larry R. Hildebrand, Rebecca E. Whitlock, Molly A. H. Webb Aug 2013

Research Tools To Investigate Movements, Migrations, And Life History Of Sturgeons (Acipenseridae), With An Emphasis On Marine-Oriented Populations, Troy C. Nelson, Phaedra Doukakis, Steven T. Lindley, Andrea D. Schreier, Joseph E. Hightower, Larry R. Hildebrand, Rebecca E. Whitlock, Molly A. H. Webb

United States Fish and Wildlife Service: Publications

Worldwide, sturgeons (Acipenseridae) are among the most endangered fishes due to habitat degradation, overfishing, and inherent life history characteristics (long life span, late maturation, and infrequent spawning). As most sturgeons are anadromous, a considerable portion of their life history occurs in estuarine and marine environments where they may encounter unique threats (e.g., interception in non-target fisheries). Of the 16 marine-oriented species, 12 are designated as Critically Endangered by the IUCN, and these include species commercially harvested. We review important research tools and techniques (tagging, electronic tagging, genetics, microchemistry, observatory) and discuss the comparative utility of these techniques to investigate movements, …


Daily Eastern News: August 22, 2013, Eastern Illinois University Aug 2013

Daily Eastern News: August 22, 2013, Eastern Illinois University

August

No abstract provided.


Development Of Intestinal Organoids From Embryonic Stem Cells, Li Cao Aug 2013

Development Of Intestinal Organoids From Embryonic Stem Cells, Li Cao

Doctoral Dissertations

Embryonic stem cells, with the ability of self-renewal and differentiation to generate cells of all three germ layers, are promising sources to address developmental questions and also for use in clinical regenerative medicine. Generating lineage-committed intestinal stem cells from embryonic stem cells (ESCs) could provide a tractable experimental system for understanding intestinal differentiation pathways and may ultimately provide cells for regenerating damaged intestinal tissue. Intestinal organoids are multicellular crypt-like structures that can be derived from isolated intestinal stem cells or from embryonic stem cells (ESCs) following described differentiation procedures. In addition to their potential usefulness in tissue repair, intestinal organoids …


The Daily Egyptian, August 22, 2013, Daily Egyptian Staff Aug 2013

The Daily Egyptian, August 22, 2013, Daily Egyptian Staff

August 2013

No abstract provided.


Samoa Stories Of Faith, Thomas Powell, Dr. Jeremy Grimshaw Aug 2013

Samoa Stories Of Faith, Thomas Powell, Dr. Jeremy Grimshaw

Journal of Undergraduate Research

The Samoan Islands are home to a rich and fascinating history and culture which is slowly disappearing as other world influences continue to have an impact on them. As members of the Church of Jesus Christ of Latter Day Saints, it is our responsibility to seek to preserve our heritage, both for our own enlightenment and for the benefit of future generations. Having served my mission in Samoa I have been able to experience firsthand the wonder and beauty of their culture and also to see the many changes it is undergoing.


Breaking Down Iron Walls: The Use Of Applied Theatre In Romanian Schools, Miriam Rasmussen, Julia Ashworth Aug 2013

Breaking Down Iron Walls: The Use Of Applied Theatre In Romanian Schools, Miriam Rasmussen, Julia Ashworth

Journal of Undergraduate Research

Through many studies and programs it has been discovered that a lack of self-worth is one of the main contributing factors to poor morale and work ethic in Romania. It has been found, that, for the majority of the country, poor expectations have led to poor performance in the workplace, hostile environments within communities and a mass migration to other countries within the European Union (Heintz 178). Under that same umbrella of lack of self-worth, there is also a special category of need found in Romanian children who have been placed in orphanages. While research has been done to recognize/identify …


The Effects Of Prenatal Stress On The Levels Of 5 Alpha Reductase And Aromatase Activity In Pregnant Rats And Their Male And Female Offspring, Steve Warren David, Dr. Reuben Ward Rhees Aug 2013

The Effects Of Prenatal Stress On The Levels Of 5 Alpha Reductase And Aromatase Activity In Pregnant Rats And Their Male And Female Offspring, Steve Warren David, Dr. Reuben Ward Rhees

Journal of Undergraduate Research

Sexual differentiation of the brain is dependent on the presence or absence of androgen (testosterone) during prenatal development. Exposure to testosterone is essential for masculinization and defeminization of sexual behavior, and brain structural development. Present evidence suggests that the action of testosterone during brain development involves the metabolic conversion of testosterone in one of two ways. Testosterone is either converted to estradiol by the enzyme aromatase or to dihydrotestosterone by the enzyme 5 alpha reductase. Testosterone and these two metabolites interact to regulate sexual differentiation of the brain. This project monitored the activity of both aromatase and 5 alpha reductase …


Paul Wolfe Interview, Professor Emeritus Department Of Physics And Department Of Geological Science, Wright State University, Lewis Shupe, Paul J. Wolfe Aug 2013

Paul Wolfe Interview, Professor Emeritus Department Of Physics And Department Of Geological Science, Wright State University, Lewis Shupe, Paul J. Wolfe

Wright State University Retirees Association Oral History Project

Lewis Shupe interviewed Dr. Paul Wolfe, Professor Emeritus of the Department of Physics and the Department of Geological Science at Wright State University, on August 22, 2013. In the interview Dr. Wolfe discusses his career, how he came to Wright State, and his memories of the University.


Autism As The Early Closure Of A Neuroplastic Critical Period Normally Seen In Adolescence, Julia Marie Berger, Troy T. Rohn, Julia Thom Oxford Aug 2013

Autism As The Early Closure Of A Neuroplastic Critical Period Normally Seen In Adolescence, Julia Marie Berger, Troy T. Rohn, Julia Thom Oxford

Biology Faculty Publications and Presentations

The most severe cases of autism are diagnosed by extreme social dysfunction and other behavioral abnormalities. A number of genetic studies have been conducted to correlate behavioral phenotypes to genetic dysfunctions, but no “autism gene” has yet been discovered. In addition, environmental factors have been found to influence the development of autistic traits with high probability. This review will examine the role of a shortened period of neuroplasticity as a unifying feature of the autistic phenotype. The neuroplastic period of interest normally extends into adolescence, allowing for neural integration and the development of language and social skills. Early closure of …


Effects Of Betaine On Body Composition, Performance, And Homocysteine Thiolactone, Jason M. Cholewa, Monika Wyszczelska-Rokiel, Rafal Glowacki, Hieronim Jakubowski, Tracey Matthews, Richard Wood, Stuart A.S. Craig, Vincent Paolone Aug 2013

Effects Of Betaine On Body Composition, Performance, And Homocysteine Thiolactone, Jason M. Cholewa, Monika Wyszczelska-Rokiel, Rafal Glowacki, Hieronim Jakubowski, Tracey Matthews, Richard Wood, Stuart A.S. Craig, Vincent Paolone

Kinesiology

Background: This study investigated the effects of long term betaine supplementation on body composition, performance, and homocysteine thiolactone (HCTL) in experienced strength trained men.Methods: Twenty-three subjects were matched for training experience (4.8 ± 2.3 years) and body fat percentage (BF%: 16.9 ± 8.0%), randomly assigned to either a placebo (PL; n = 12) or betaine group (BET; n = 11; 2.5 g/day), and completed a 6 week periodized training program consisting of 3 two-week micro-cycles. Bench press and back squat training volumes were recorded and changes in training volume were assessed at each micro-cycle. Fasting urine was collected at baseline …


The Daily Gamecock, Thursday, August 22, 2013, University Of South Carolina, Office Of Student Media Aug 2013

The Daily Gamecock, Thursday, August 22, 2013, University Of South Carolina, Office Of Student Media

August

No abstract provided.


Phosphorylation Of Calcineurin At A Novel Serine-Proline Rich Region Orchestrates Hyphal Growth And Virulence In Aspergillus Fumigatus, Praveen R. Juvvadi, Christopher Gehrke, Jarrod R. Fortwendel, Frédéric Lamoth, Erik J. Soderblom, Erik C. Cook, Michael A. Hast, Yohannes G. Asfaw, M. Arthur Moseley, Trevor P. Creamer, William J. Steinbach Aug 2013

Phosphorylation Of Calcineurin At A Novel Serine-Proline Rich Region Orchestrates Hyphal Growth And Virulence In Aspergillus Fumigatus, Praveen R. Juvvadi, Christopher Gehrke, Jarrod R. Fortwendel, Frédéric Lamoth, Erik J. Soderblom, Erik C. Cook, Michael A. Hast, Yohannes G. Asfaw, M. Arthur Moseley, Trevor P. Creamer, William J. Steinbach

Molecular and Cellular Biochemistry Faculty Publications

The fungus Aspergillus fumigatus is a leading infectious killer in immunocompromised patients. Calcineurin, a calmodulin (CaM)-dependent protein phosphatase comprised of calcineurin A (CnaA) and calcineurin B (CnaB) subunits, localizes at the hyphal tips and septa to direct A. fumigatus invasion and virulence. Here we identified a novel serine-proline rich region (SPRR) located between two conserved CnaA domains, the CnaB-binding helix and the CaM-binding domain, that is evolutionarily conserved and unique to filamentous fungi and also completely absent in human calcineurin. Phosphopeptide enrichment and tandem mass spectrometry revealed the phosphorylation of A. fumigatus CnaA in vivo at four clustered serine residues …


The Indentured Generation: Bankruptcy And Student Loan Debt, Daniel A. Austin Aug 2013

The Indentured Generation: Bankruptcy And Student Loan Debt, Daniel A. Austin

Santa Clara Law Review

No abstract provided.


The Zynga Clawback: Shoring Up The Central Pillar Of Innovation, Thomas A. Smith Aug 2013

The Zynga Clawback: Shoring Up The Central Pillar Of Innovation, Thomas A. Smith

Santa Clara Law Review

No abstract provided.


Comparative Gene Analysis And Prediction Of Innate Immunity And Apoptosis Machinery In Hydrothermal Vent Tubeworms, Corey M. Bunce Aug 2013

Comparative Gene Analysis And Prediction Of Innate Immunity And Apoptosis Machinery In Hydrothermal Vent Tubeworms, Corey M. Bunce

Master's Theses

Siboglinid tubeworms are an emerging model system for symbiosis in extreme conditions. At deep-sea hydrothermal vents in the Pacific Ocean, they harbor a chemoautotrophic symbiont in a specialized organ, the trophosome, where the bacteria carry out primary production via oxidation of reduced sulfur compounds. The trophosome of siboglinid worms is suggested to be tightly regulated, symbiont-responsive, and developmentally homeostatic. The purported mechanism involves a cellular proliferative or apoptotic response to bacterial signals, environmental cues, or nutrition. Though these processes are well understood in more amenable model systems, there has been little work uncovering the tubeworm’s genetic potential for sensing and …


Experimental Demonstration Of Accelerated Extinction In Source-Sink Metapopulations, John M. Drake, Blaine D. Griffen Aug 2013

Experimental Demonstration Of Accelerated Extinction In Source-Sink Metapopulations, John M. Drake, Blaine D. Griffen

Faculty Publications

Population extinction is a fundamental ecological process which may be aggravated by the exchange of organisms between productive (source) and unproductive (sink) habitat patches. The extent to which such source-sink exchange affects extinction rates is unknown. We conducted an experiment in which metapopulation effects could be distinguished from source-sink effects in laboratory populations of Daphnia magna. Time-to-extinction in this experiment was maximized at intermediate levels of habitat fragmentation, which is consistent with a minority of theoretical models. These results provided a baseline for comparison with experimental treatments designed to detect effects of concentrating resources in source patches. These treatments showed …


Layered Rare Earth And Transition Metal Materials: Synthesis, Modification And Catalytic Application, Yashan Zhang Aug 2013

Layered Rare Earth And Transition Metal Materials: Synthesis, Modification And Catalytic Application, Yashan Zhang

Doctoral Dissertations

This research contains three parts; the first two parts of this thesis demonstrate the synthesis of rare earth layered materials and their application in biodiesel production as basic heterogeneous catalysts. Different rare earth layered materials were synthesized, characterized, modified, and investigated to find a better catalyst for the biodiesel reactions under mild conditions, and the potassium modified neodymium oxycarbonate was the best among them. Both conventional heating and microwave radiation methods were applied to carry out the transesterification reactions. Different parameters such as reaction time, temperature, reactants ratio, and catalyst amount were also studied in the biodiesel reactions to find …


High-Speed, Three-Dimensional Quantification Of Ladybug (Hippodamia Convergens) Flapping Wing Kinematics During Takeoff, Ryan B. George, Dr. Scott L. Thomson Aug 2013

High-Speed, Three-Dimensional Quantification Of Ladybug (Hippodamia Convergens) Flapping Wing Kinematics During Takeoff, Ryan B. George, Dr. Scott L. Thomson

Journal of Undergraduate Research

Ladybug wing and body kinematics during takeoff is explored using high-speed stereoscopic imaging. Recordings of the specimens during flight are acquired at a rate of 3000 frames per second. A direct linear transformation algorithm is performed using custom implementation in Matlab to quantify positions of selected locations on the body, forewings (elytra), and hindwings. Design and setup of instrumentation and analysis procedures are explained. Flapping frequency is reported. Significant motion of the elytra and other findings are presented and their applications are discussed.


Roak-Aradun And Other Stories, Michael Mercer, Kelly Loosli Aug 2013

Roak-Aradun And Other Stories, Michael Mercer, Kelly Loosli

Journal of Undergraduate Research

Brigham Young University’s Animation program is well on its way to becoming legendary. With the combined heroism of the faculty, the students, the administration, and others, there has risen a collegiate experience that rivals that of private art institutions. Yet no university program has room enough for all the knowledge and skills needed for specialty occupations, and so perhaps the greatest success of any education is the transmission of the skills and desire to learn and discover. This has most assuredly been the case with the Animation program. My goal with this research and production project was to obtain for …


Book Review: Feminist Ecocriticism: Environment, Women, Literature, Amukelani T. Ngobeni Aug 2013

Book Review: Feminist Ecocriticism: Environment, Women, Literature, Amukelani T. Ngobeni

Journal of International Women's Studies

Review of Feminist Ecocriticism: Environment, Women, Literature, edited by Douglas A. Vakoch (New York: Lexington Books, 2012)


Costa Rica And The "Electric Fence" Mentality: Stunting Women's Socio-Economic Participation In The 21st Century, Amy Osborne Aug 2013

Costa Rica And The "Electric Fence" Mentality: Stunting Women's Socio-Economic Participation In The 21st Century, Amy Osborne

Journal of International Women's Studies

Costa Rica is regarded as the “top democracy” in Latin America, exceeding basic developmental standards in most categories. The nation’s achievement is evidenced by women’s strong enrollment and retention rates within the nation’s education system. However, Costa Rica’s overwhelming gender disparity in the labor force reveals significant developmental deficiencies and contradicts fundamental democratic ideals. The pervasion of an “electric fence” mentality stunts women’s socio-economic engagement by restraining them to traditionally prescribed gender roles. To better understand women’s economic detachment, special attention must be paid to those institutional practices that perpetuate cultural norms and discriminatory tendencies. Costa Rica’s education system has …


South Asian Fiction And Marital Agency Of Muslim Wives, Hafiza Nilofar Khan Aug 2013

South Asian Fiction And Marital Agency Of Muslim Wives, Hafiza Nilofar Khan

Journal of International Women's Studies

This essay deals with the treatment of wifely agency as delineated by three South Asian women writers: Ismat Chughtai, Tehmina Durrani and Selina Hossain. It tries to prove that the Muslim wives as projected in the fiction of these writers from the patriarchal societies of India, Pakistan and Bangladesh are not uniformly oppressed victims of socio-religious discourses. Though often their bodies are subjected to rigorous discipline, docility and even battery, these wives still demonstrate sufficient agential powers to resist the status quo and chalk out a fresh trope of identity for themselves. Their domestic agency, sexual agency and decision-making powers, …


Nina Simone & The Civil Rights Movement: Protest At Her Piano, Audience At Her Feet, A. Loudermilk Aug 2013

Nina Simone & The Civil Rights Movement: Protest At Her Piano, Audience At Her Feet, A. Loudermilk

Journal of International Women's Studies

American pianist, vocalist, songwriter, and activist Nina Simone (1933-2003) played a major role in the Civil Rights Movement and yet many historical accounts of the era have snubbed her. Bringing into clearer focus the intense and problematic commitment of Simone’s identity as a musician to the protest identity of the Civil Rights Movement, this essay will examine Simone as an icon, her songs in historical context, and her audiences over the years. Her concerts, which continued until the last year of her life, make for a fascinating public record of her turbulent relationship with fans during and after the turbulent …


Sex And Selfhood: What Feminist Philosophy Can Learn From Recent Ethnography In Ho Chi Minh City, Mathew A. Foust Aug 2013

Sex And Selfhood: What Feminist Philosophy Can Learn From Recent Ethnography In Ho Chi Minh City, Mathew A. Foust

Journal of International Women's Studies

This article explores the connection of class dynamics to the moral agency of sex workers and their clients. It revisits the analyses of several contemporary feminist theorists, placing these analyses in dialogue with a recent ethnographic study of the sex work industry in Ho Chi Minh City, Vietnam. In light of this comparative analysis, it is argued that accurate understanding and assessment of the moral agency of sex workers and their clients requires attunement to the complex and evolving class dynamics within which each is situated. Thus, while traditional frameworks for approaching this subject are useful, they are ultimately inadequate.


Changing Status Of Women And The Phenomenon Trafficking Of Women For Transactional Sex In Nigeria: A Qualitative Analysis, Clementina A. Osezua Aug 2013

Changing Status Of Women And The Phenomenon Trafficking Of Women For Transactional Sex In Nigeria: A Qualitative Analysis, Clementina A. Osezua

Journal of International Women's Studies

This paper examines the changing status of Bini women occasioned by the upsurge and endemic nature of the phenomenon of trafficking of women for the purpose of transactional sex. It engaged ethnographic methods of data collection with the use of family based interviews, focus group discussions using vignette stories, life histories, and key informant interviewing. Data were analyzed based on emerged themes. Findings revealed that “successful” trafficked Bini women enjoyed high socio-economic status in their families of procreation especially where family members were the direct recipients of the proceeds from transactional sex. Most mothers of “successfully” trafficked victims wielded greater …


Microbial Gut Diversity Of Africanized And European Honey Bee Larval Instars, Svjetlana Vojvodic, Sandra M. Rehan, Kirk E. Anderson Aug 2013

Microbial Gut Diversity Of Africanized And European Honey Bee Larval Instars, Svjetlana Vojvodic, Sandra M. Rehan, Kirk E. Anderson

College of Science & Mathematics Departmental Research

The first step in understanding gut microbial ecology is determining the presence and potential niche breadth of associated microbes. While the core gut bacteria of adult honey bees is becoming increasingly apparent, there is very little and inconsistent information concerning symbiotic bacterial communities in honey bee larvae. The larval gut is the target of highly pathogenic bacteria and fungi, highlighting the need to understand interactions between typical larval gut flora, nutrition and disease progression. Here we show that the larval gut is colonized by a handful of bacterial groups previously described from guts of adult honey bees or other pollinators. …


Inheritance Of The Past: Patriarchy, Race And Gender In Faulkner's And Chopin's South, Therese D. Osborne Aug 2013

Inheritance Of The Past: Patriarchy, Race And Gender In Faulkner's And Chopin's South, Therese D. Osborne

Master of Liberal Studies Theses

The death of the Confederacy sealed in white southern memory a lost world of beauty that denied the cruelty of its “peculiar institution.” Southern writers have seemed haunted by this conflict between the cherished past of their ancestors and the reality of the devastated region, with its legacy in slavery. Through the commentary of women diarists who mourn their crumbling society, and selected works of William Faulkner and Kate Chopin, this paper examines the myth and reality of the southern past. It reveals the enduring impact of the all-powerful white patriarchy that gave order to the antebellum South, destroyed it, …


Rotunda - Vol 92, No 1 - Aug 21, 2013, Longwood University Aug 2013

Rotunda - Vol 92, No 1 - Aug 21, 2013, Longwood University

Rotunda

No abstract provided.


Analysis Of A Compliant Centrifugal Clutch Using Computeraided Engineering Tools, James D. Baker, Dr. Larry L. Howell Aug 2013

Analysis Of A Compliant Centrifugal Clutch Using Computeraided Engineering Tools, James D. Baker, Dr. Larry L. Howell

Journal of Undergraduate Research

Contemporary engineering has received the benefits of computer-aided engineering (CAE) tools that automate and simplify the design of mechanical systems. However, such tools do not provide direct support for the specific field of compliant mechanisms, whose behavior can require difficult techniques for design and synthesis. Compliant mechanisms utilize flexible segments instead of joints, to achieve their motion. It was proposed that two CAE tools, namely Pro/ENGINEER and ADAMS/View, along with a method for analyzing compliant mechanisms known as the pseudo-rigid-body model, could greatly reduce the time and effort required to generate accurate results in the analysis of a compliant centrifugal …