Digital Commons Network^™

Cyclical, Edna Madera

Theses

The works presented here are portraits of my Mother meditating for motherhood between religious faith and will power, the creation of which, became a personal means of coping with her death. Catholic rosaries and knitted baby booties are depicted as I explore feminine identity within the context of fertility and the social views that condition it. Material explorations include, rusted steel, body fluid, and animal tissue.

Serum- And Glucocorticoid-Induced Kinase 3 In Recycling Endosomes Mediates Acute Activation Of Na+/H+ Exchanger Nhe3 By Glucocorticoids, Peijian He, Sei-Jung Lee, Songbai Lin, Ursula Seidler, Florian Lang, Geza Fejes-Toth, Aniko Naray-Fejes-Toth, C. Chris Yun

Dartmouth Scholarship

Na(+)/H(+) exchanger 3 (NHE3) is the major Na(+) transporter in the intestine. Serum- and glucocorticoid-induced kinase (SGK) 1 interacts with NHE regulatory factor 2 (NHERF2) and mediates activation of NHE3 by dexamethasone (Dex) in cultured epithelial cells. In this study, we compared short-term regulation of NHE3 by Dex in SGK1-null and NHERF2-null mice. In comparison to wild-type mice, loss of SGK1 or NHERF2 significantly attenuated regulation of NHE3 by Dex but did not completely obliterate the effect. We show that transfection of SGK2 or SGK3 in PS120 cells resulted in robust activation of NHE3 by Dex. However, unlike SGK1 or …

Adjustment Of Families With Children Adopted From Eastern Europe, Maria Kuznetsova

Theses and Dissertations

The purpose of this study was to examine the adjustment of older children and adolescents adopted from Eastern Europe and the impact of their preadoption history and family’s functioning on their adjustment. This is a follow-up study of families first surveyed in 2005 with an addition of new families. One hundred and forty-five families reporting on 194 adopted children (9 to 19 years; 104 girls) participated in this study at Time 2. The project was conducted as an internet-based survey. Parents and adopted children reported on children’s emotional, behavioral and social problems (CBCL and YSR), as well as family environment …

Building The Small Spacecraft Technology Pipeline, Dr. James Reuther

Small Satellite Conference

Biography - Dr. Reuther currently serves as the Acting Director for Crosscutting Capability Demonstrations in the Office of Chief Technologist of the National Aeronautics and Space Administration (NASA) Headquarters. Previously, Dr. Reuther served as the Lead of the Test and Verification (T&V) Office for the Orion spacecraft development. After graduating from the University of California Davis with a Bachelors, Masters, and Ph.D. in mechanical and aeronautical engineering, Dr. Reuther performed foundational research in Aerodynamic Shape Optimization. Next, he served as the computation aerothermal sub-team lead for the Columbia Accident Investigation Board (CAIB) and NASA’s Return to Flight (RTF) efforts under …

Letters To The Editor

Jefferson Journal of Psychiatry

We welcome all letters to the editor and encourage authors to reply. Input from residents and faculty on ideas presented in the Journal create an arena for discussion and dialogue that is the ultimate purpose of this undertaking.

Chronic Pain, Roberta Ball, Do

Jefferson Journal of Psychiatry

A complex problem of vast dimensions, chronic pain is receiving increasing attention due to the expansion of knowledge of the neurophysiology, neurochemistry and psychology of pain. Chronic pain presents a challenge to many disciplines in the health professions, and one that is more recently being presented to the psychiatrist.This paper will attempt to define the problem of chronic pain, to explore the concept of organic versus psychogenic pain, to describe the psychodynamics and other characteristics seen in the chronic pain patient and to discuss the importance of the psychiatristin evaluation and treatment of chronic pain .

The Evaluation And Treatment Of A Patient With Anorexia Nervosa, Gail S. Greenspan, Md

Jefferson Journal of Psychiatry

Introduction

Anorexia nervosa is a serious illness that has generated enormous public interest during recent times. Within the psychiatric field, numerous articles and books have been written about this syndrome. This literature reflects varied theoretical frameworks, from primarily biological approaches to family systems to psychodynamic theory. In this paper I will attempt to integrate family systems and psychodynamic theory in an understanding of a young woman with anorexia nervosa who was treated in a hospital setting.

Faculty Advisor's Column, Harvey J. Schwartz, Md

Jefferson Journal of Psychiatry

This issue of our Journal marks a new stage in our development. We have started accepting papers from residency programs other than our own. Encouraged by the enthusiastic response our prior issues have elicited from psychiatric educators around the country, we are embarking on a program of expansion. In doing so we hope to provide a unique arena for psychiatric resident thinking. Residents nationwide are invited to share with each other and their faculties, their discoveries, their uncertaintiesand the newness with which they view their work.

Interview With Karl Mattson, August 10, 2011, Karl Mattson, Michael J. Birkner

Oral Histories

Karl Mattson was interviewed on August 10, 2011 by Michael Birkner about his life starting with his earliest memories. This interview is part 1 of a 2 part interview.

Length of Interview: 46 minutes

Collection Note: This oral history was selected from the Oral History Collection maintained by Special Collections & College Archives. Transcripts are available for browsing in the Special Collections Reading Room, 4^th floor, Musselman Library. GettDigital contains the complete listing of oral histories done from 1978 to the present. To view this list and to access selected digital versions please visit -- https://gettysburg.contentdm.oclc.org/digital/collection/p16274coll2/search

August 10, 2011 Greenmail, University Of Alabama At Birmingham

GreenMail (student newsletter through 2024)

No abstract provided.

Selecting Improved Lotus Nodulating Rhizobia To Expedite The Development Of New Forage Species, John Gregory Howieson, Ross Andrew Ballard, Ronald J. Yates, Nigel Charman

Grain and Other Field Crops Research Articles

Aims

In the past decades the increasing focus by Australian pasture development programs on the genus Lotus has seen the evaluation of many species previously untested in Australia. In field trials, nodulation failure was commonplace. This work was undertaken to select effective symbionts for Lotus to ensure further agronomic evaluation of the genus was not compromised. The symbiotic needs of Lotus ornithopodioides were a particular focus of the studies.

Methods

Glasshouse experiments were undertaken to evaluate symbiotic relationships between 15 Lotus spp and 23 strains of nodulating Mesorhizobium loti. This was followed by evaluation of elite rhizobial strains for …

Severe 2010 Cold-Water Event Caused Unprecedented Mortality To Corals Of The Florida Reef Tract And Reversed Previous Survivorship Patterns, Diego Lirman, Stephanie Schopmeyer, Derek Manzello, Lewis J. Gramer, William F. Precht, Frank E. Muller-Karger, Kenneth Banks, Brian Barnes, Erich Bartels, Amanda Bourque, James Byrne, Scott Donahue, Janice Duquesnel, Louis Fisher, David S. Gilliam, James C. Hendee, Meaghan E. Johnson, Kerry Maxwell, Erin Mcdevitt, Jamie Monty, Digna Rueda, Rob Ruzicka, Sara Thanner

Marine & Environmental Sciences Faculty Articles

Background

Coral reefs are facing increasing pressure from natural and anthropogenic stressors that have already caused significant worldwide declines. In January 2010, coral reefs of Florida, United States, were impacted by an extreme cold-water anomaly that exposed corals to temperatures well below their reported thresholds (16°C), causing rapid coral mortality unprecedented in spatial extent and severity.

Methodology/Principal Findings

Reef surveys were conducted from Martin County to the Lower Florida Keys within weeks of the anomaly. The impacts recorded were catastrophic and exceeded those of any previous disturbances in the region. Coral mortality patterns were directly correlated to in-situ and satellite-derived …

Effect Of Particle Size, Binder Content And Heat Treatment On Mechanical Properties Of 13-93 Bioactive Glass Scaffolds, Krishna C. R. Kolan, Ming-Chuan Leu, Greg Hilmas, Mariano Garcia Velez

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Particle size, binder content and the post-processing schedule are important parameters that affect the microstructure, and, hence, the mechanical properties of parts produced using the indirect selective laser sintering process. 13-93 bioactive glass, with mean particle sizes ranging from 10 μm to 44 μm, is mixed with different amounts of stearic acid binder to fabricate green scaffolds. Through the design of the post-processing schedule, the time required for postprocessing the green scaffolds is reduced from the initial 80 hrs to 12 hrs. The compressive strength varies from 41 MPa for a part with~60% porosity to 157 MPa for a part …

Bio-Inspired Design Of Bipolar Plate Flow Fields For Polymer Electrolyte Membrane Fuel Cells, Nannan Guo, Ming-Chuan Leu, Maoliang Wu

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The flow field of a bipolar plate distributes hydrogen and oxygen for polymer electrolyte membrane (PEM) fuel cells and removes the produced water from the fuel cells. It greatly influences the performance of fuel cells, especially regarding reduction of mass transport loss. Flow fields with good gas distribution and water removal capabilities reduce the mass transport loss, thus allowing higher power density. Inspired by natural structures such as veins in tree leaves and blood vessels in lungs, which efficiently feed nutrition from one central source to large areas and are capable of removing undesirable by-products, a mathematic model has been …

Volume 48, Number 51: August 10, 2011, University Of North Dakota

University Letter Archive

No abstract provided.

Detection Of Low Density Lipoprotein Receptor Gene Mutations In Patients With Familial Hypercholesterolaemia / Rafezah Razali, Razali Rafezah

Student Works (2010-2019)

Familial hypercholesterolaemia (FH) is an autosomal dominant inherited disorder of lipoprotein metabolism associated with premature coronary artery disease (CAD). Extrapolating the prevalence of heterozygous FH in western populations into Malaysian population, it would be estimated that about 50,000 Malaysians would be affected and at risk of developing premature CAD. Mutations of the low density lipoprotein receptor (LDLR) gene are the most frequent cause of FH but its genetic profiles in the Asian population has been poorly characterised. Therefore, in this study, the screening and characterisation of the LDLR gene mutations and its polymorphisms among patients with clinical diagnosis of FH …

Hubungan Konteks Keluarga Dengan Penglibatan Ibu Bapa Dan Pencapaian Akademik Anak-Anak Di Sekolah Menengah / Abd. Razak Zakaria, Zakaria Abd. Razak

Student Works (2010-2019)

Kajian ini dijalankan bertujuan mengkaji sejauh mana ibu bapa melibatkan diri dalam pendidikan anak-anak ketika di sekolah menengah. Kajian berfokus sepenuhnya kepada murid sebagai sampel. Peserta kajian melibatkan seramai 950 orang yang terdiri daripada murid-murid tingkatan empat dari sekolah menengah bantuan penuh kerajaan dalam negeri Selangor. Kajian tinjauan ini menggunakan sepenuhnya soal selidik dalam mendapatkan data. Persampelan rawak dilakukan dalam memilih sampel kajian. Lokasi bandar dan luar bandar diambil kira dalam penentuan pemilihan sampel. Data-data berskala Likert dianalisis sepenuhnya secara inferensi menggunakan Predictive Analytics Software (PASW) manakala data soalan terbuka dianalisis secara deskriptif. Kekuatan kedua-dua kaedah penganalisisan digunakan bagi menjawab …

Acquisitions Unit Annual Report 2010-2011, Andree J. Rathemacher

Technical Services Reports and Statistics

Annual report of the Acquisitions Unit, University Libraries, University of Rhode Island for FY11. Covers personnel, work flow, special projects, serial and monograph acquisitions, and goals for the coming year. Supplemental files include data on library materials expenditures by a number of variables as well as important working documents from the year, e.g. serial titles withdrawn, subscription changes for 2011, collection comparisons with other HELIN libraries, fiscal close reports, and a list of e-resources acquired through the HELIN Consortium.

Resistant Thyrotoxicosis In A Patient With Graves Disease: A Case Report, Taimur Saleem, Aisha Sheikh, Qamar Masood

Section of Diabetes, Endocrinology and Metabolism

Background: Conventional management of thyrotoxicosis includes antithyroid drugs, radioactive iodine, and surgery while adjunctive treatment includes beta-blockers, corticosteroids, inorganic iodide and iopanoic acid. Very rarely, patients may be resistant to these modalities and require additional management.

Case Presentation: A 50-year-old lady presented with weight loss and palpitations diagnosed as atrial fibrillation. Her past history was significant for right thyroid lobectomy for thyrotoxicosis. Thyroid functions tests at this presentation showed free T4 of 6.63 ng/dl (normal range: 0.93-1.7) and TSH of <0.005 μIU/mL (normal range: 0.4-4.0). She was given aspirin, propranolol, heparin and carbimazole; however free T4 failed to normalize. Switching to propylthiouracil (PTU) did not prove successful. She was then given high doses of prednisolone (1 mg/kg/day) and lithium (400 mg twice daily) which prepared the patient for radioactive iodine treatment by reducing free T4 levels (2.82 ng/dl). Two doses of radioactive iodine were then administered 6 months apart. Subsequently she became hypothyroid and was started on thyroid replacement therapy.

Conclusion: This case highlights management options in patients with resistant thyrotoxicosis. Radioactive iodine and surgery are definitive modes …

Studies Of Food Thickeners In Nigeria For Contamination By Aflatoxigenic Forms Of Aspergillus And Their Detection By Pcr, G. I. Okwu, Premila Achar, Michael J. Ikenebomeh, S. Y. Sreenivasa

Faculty Articles

This paper reports the contamination of ready-to-use food thickeners, collected from the South-East geo-political zone in Nigeria, by aflatoxigenic form of Aspergillus species. A total of 150 samples from different open markets were observed for fungal contamination by using serial dilution-spread plate method. Although, Aspergillus, Fusarium and Penicillium were the most frequently isolated fungi, Aspergillus species were found to be the most prevalent in all the samples. Furthermore, Aspergillus flavus and Aspergillus parasiticus produced aflatoxin on yeast extract sucrose (YES) media incubated for 10 to 15 days at 27°C in a CO₂ incubator. Aspergillus niger showed no sign of …

Genetic Risk And A Primary Role For Cell-Mediated Immune Mechanisms In Multiple Sclerosis, Stephen Sawcer, Garrett Hellenthal, Matti Pirinen, Chris C.A. Spencer, Nikolaos A. Patsopoulos, Loukas Moutsianas, Alexander Dilthey, Zhan Su, Colin Freeman, Sarah E. Hunt, Sarah Edkins, Emma Gray, David R. Booth, Simon C. Potter, An Goris, Gavin Band, Annette Bang Oturai, Amy Strange, Janna Saarela, Céline Bellenguez, Bertrand Fontaine, Matthew Gillman, Bernhard Hemmer, Rhian Gwilliam, Frauke Zipp, Alagurevathi Jayakumar, Roland Martin, Stephen Leslie, Stanley Hawkins, Stanley Hawkins

Peninsula Medical School

Multiple sclerosis is a common disease of the central nervous system in which the interplay between inflammatory and neurodegenerative processes typically results in intermittent neurological disturbance followed by progressive accumulation of disability. Epidemiological studies have shown that genetic factors are primarily responsible for the substantially increased frequency of the disease seen in the relatives of affected individuals, and systematic attempts to identify linkage in multiplex families have confirmed that variation within the major histocompatibility complex (MHC) exerts the greatest individual effect on risk. Modestly powered genome-wide association studies (GWAS) have enabled more than 20 additional risk loci to be identified …

Distant Horizons: Smallsat Evolution In The Mid-To-Far Term, Matt Bille, Paul Kolodziejski, Tom Hunsaker

Small Satellite Conference

There are many smallsat missions now in progress or in development, and these are pushing smallsats into new realms of technology, compactness, and mission utility. Proposals for the near term will shrink smallsats further, couple them in new ways using constellations or fractionated architectures, and edge into new mission areas. What, though, is on the horizon looking out 10-25 years or more? While there have been some overly optimistic predictions about smallsats, the advances demonstrated or in development in computing, nanomaterials, microelectromechanical systems, and other areas indicate the future will include some smallsat applications only now being imagined, and others …

High Pressure Structural Studies On Nb5si3 Up To 26.2 Gpa, Brandon Stewart, Ravhi S. Kumar

Undergraduate Research Opportunities Program (UROP)

With the use of synchrotron techniques, we can better understand how crystalline structures behave under extreme conditions. This yields the opportunity to resolve complex crystal structures [1]. Here, we focus on the high pressure crystal structure of Nb5Si3. Refractory metal silicides are an important class of materials as they are used in high temperature applications such as turbines and aerospace modules. As an example, the performance of a jet engine is highly influenced by the maximum internal pressure and temperature possible. Obtaining higher levels of thrust is dependent upon the material's ability to remain structurally sound under extreme temperatures and …

The Role Of A Transcription Factor In Regulating Rice Response To Drought Stress, Diana Ha, Liyuan A. Zhang, Jeffery Shen

Undergraduate Research Opportunities Program (UROP)

The current water shortage is a major concern in regard to our global climate change crisis. A decrease in the availability of water will have direct effects on the development of plants. Some crops, such as Oryza sativa, or commonly known as rice, requires an abundant amount of water for adequate growth. With the water shortage crisis, it will become extremely difficult to harvest such crops to meet the world’s food demand. However, many plants have evolved mechanisms for overcoming and tolerating stresses such as drought. My research focuses on studying the proteins involved with these mechanisms. The WRKY superfamily …

The Use Of Chloramines To Eradicate Quagga Mussel Larvae, Trea Lacroix, Kumud Acharya

Undergraduate Research Opportunities Program (UROP)

Quagga Mussels, Dressenia bugensis, are a growing problem in the western United States, particularly in their ability to infest underwater infrastructures and clog water intake pipes and screens of power and treatment plants. Chlorine has been found to be the most effective chemical to get rid of veligers (planktonic larval form of quagga mussels) in the pipes. However, chlorine leaves a residue called trihalomethane, which is a carcinogen at higher concentrations. The purpose of this project is to test the effectiveness of an alternate chemical, chloramines (chlorine and ammonia), which leaves behind little to no residual trihalomethane. Upon experimentation with …

Magnetosome Genes In The Gammaproteobacterium Strain Bw-2, Lucero Rivera, Denis Trubitsyn, Dennis A. Bazylinski

Undergraduate Research Opportunities Program (UROP)

Magnetotactic bacteria (MTB) biomineralize intracellular nanometer-sized, magnetic crystals surrounded by a lipid bilayer membrane known as magnetosomes. These crystals, which consist of magnetite (Fe3O4) or greigite (Fe3S4), causes the cell to align along the geomagnetic field lines as they swim, a phenomenon known as magnetotaxis. Strain BW-2 is a magnetite-producing magnetotactic bacterium isolated from Badwater Basin, Death Valley National Park (California) and is one of only two species of MTB that are known to phylogenetically belong to the Gammaproteobacteria class of the Proteobacteria phylum. The biomineralization of magnetite in magnetotactic bacteria is mediated by a series of genes that include …

Identification Of Nitrifying Bacteria Contained In A Commercial Inoculant Using Molecular Biology Techniques, Anthony Harrington, John Perry, Penny S. Amy

Undergraduate Research Opportunities Program (UROP)

Nitrifying bacteria play an important role in aquatic and terrestrial environments through the nitrogen cycle. Nitrification, one of the processes of the nitrogen cycle, refers to the oxidation of ammonia to nitrate. This process requires two types of chemoautotrophic bacteria, ammonia-oxidizing bacteria (AOB), and nitrite-oxidizing bacteria (NOB). These bacteria are essential in maintaining an optimal environment for plants and aquatic organisms, such as fish. Current applications of nitrifiers include: inoculants for aquariums, biofertilizers, and nitrogen removal in wastewater treatment plants. This study wants to identify a consortium of nitrifers that can be used to produce sufficient nitrate for plants in …

Ubiquitylation Of Proteins In The Frozen Wood Frog, Alexa Khan, Michael Ulrich, Kenneth Storey, Frank Van Breukelen

Undergraduate Research Opportunities Program (UROP)

Wood frogs (Rana sylvatica) are able to withstand freezing. Respiratory and cardiac activity ceases when frozen. Homeostatic functions like protein synthesis and degradation presumably must also be compromised. We investigated the fate of ubiquitin-dependent proteolysis in the freeze-thaw cycle and how that might gives clues to wood frog survival. We performed western blots for ubiquitin conjugates

Biological Effects On Serpentinite Weathering, Mary H. Evert, Julie Baumeister, Elisabeth Hausrath

Undergraduate Research Opportunities Program (UROP)

Serpentinites, perhaps more than any other rock type, control the composition and evolution of the development of the surrounding ecosystems. The bulk chemistry of serpentinite rocks, high in Mg and trace elements, and low in nutrients such as Ca, K, P, and N, causes an extreme and stressful environment for ecosystems. However, the role that those serpentine ecosystems play in development of serpentine soils has not been examined.

Due to the unusual chemistry of serpentine soils, serpentine ecosystems have deeper and better-developed root systems than other ecosystems. The rhizosphere of serpentine systems, documented to produce abundant organic acids and siderophores, …

Novel Thermophilic Cellulolytic Isolates Belonging To The Phylum Chloroflexi, Maryknoll Palisoc, Jessica K. Guy, Joseph P. Peacock, Duy C. Trinh, Jeremy A. Dodsworth, Brian P. Hedlund

Undergraduate Research Opportunities Program (UROP)

Current biofuel technologies utilize valuable foodstuffs, such as corn kernels and cane sugar, as sources of easily metabolized sugars. Microbes are used to ferment these sugars into bioethanol, a first-generation biofuel. However, in order to avoid diverting foodstuffs from the food supply, the development of second-generation biofuels technology is necessary. Second-generation biofuels are produced by converting structurally complex lignocellulosic biomass, such as agricultural and municipal wastes, to fermentable sugars or directly to biofuels.

The major technological hurdle limiting the mass production of second-generation biofuels is the difficulty in efficiently converting structurally complex lignocellulosic materials to fermentable sugars or directly to …