Digital Commons Network^™

One-Step Synthesis Of Hyaluronic Acid-Based (Sub)Micron Hydrogel Particles: Process Optimization And Preliminary Characterization, Nurettin Sahiner, Xinqiao Jia

Turkish Journal of Chemistry

Hyaluronic acid (HA)-based (sub)micron hydrogel particles were synthesized by crosslinking virgin HA with divinyl sulfone (DVS) in sodium bis(2-ethylhexyl)sulfosuccinate (AOT) reverse micelle systems under basic conditions. Experimental parameters including HA molecular weight, solution concentration, and reaction time were systematically varied in order to obtain well defined hydrogel particles. The use of a cosurfactant, 1-heptanol (1-HP), had a profound effect on the reaction kinetics and the particle morphology. The resulting particles exhibit negative charges on their surfaces. In vitro biocompatibility study indicates that these particles do not cause severe death to the cultured fibroblasts. These HA-based hydrogel particles are promising candidates …

Synthesis And Antifungal Activity Of Some Novel N-(4-Phenyl-3-Aroylthiazol-2(3h)-Ylidene) Substituted Benzamides, Aamer Saeed, Sabah Zaman, Maryam Jamil, Bushra Mirza

Turkish Journal of Chemistry

Variously substituted N-(4-phenyl-3-aroylthiazol-2(3H)-ylidene)benzamides (2a-t) were prepared by base-catalyzed cyclization of corresponding 1-aroyl-3-aryl thioureas with acetophenone in the presence of bromine. Some of the synthesized compounds were assayed in vitro for their antifungal activity and were found to exhibit low to moderate activity.

High Yielding Oxidative Deprotection Of Silyl And Pyranyl Ethers To Their Corresponding Carbonyl Compounds With Strontium Manganate In The Presence Of Aluminium Chloride In Solution And Under Solvent-Free Conditions, Mostafa Gholizadeh, I. Mohmmadpoor Baltork

Turkish Journal of Chemistry

Strontium manganate (SrMnO_4) in the presence of aluminium chloride (AlCl_3) is an efficient reagent for the high yielding oxidative deprotection of aromatic and aliphatic silyl and pyranyl ethers into their corresponding carbonyl compounds, in solution and under solvent-free conditions.

The Manufactured Experience, Debra Ruzinsky

Theses

Repeatedly what I see around me are places and messages that generate manufactured experiences, manipulated by someone with an agenda to promote. My thesis work, entitled "Sweet Reassurance," is a personal approach to re-invention; a conceptually driven body of work that explores my obsession with irony, a need to vent frustration with public policy, complacency, and misguided priorities. The work springs from a notion to create proposals for architectural projects that are rather absurd and could never really be realized. They are my brand of visionary architecture, existing somewhere between the Utopian and the Dystopian. I have developed a vocabulary …

Establishing Universal Screening Risk Indicators Using Reading Curriculum-Based Measurement And The Developmental Reading Assessment, Adrienne M. Zonneville

Theses

The current study examined the abilities of Dynamic Indicator of Basic Early Literacy Skills Oral Reading Fluency (DORF) and the Developmental Reading Assessment (DRA) to be used as screening measures for predicting performance on the yearly state reading assessment in New York. Data from 194 students’ performance on DORF, DRA, and the English Language Arts (ELA) assessment were examined from an existing data base. Participants’ scores on the DORF and the DRA in third grade were compared to their performance on the fourth grade ELA. Screening cut scores were developed for each benchmarking period to assist in identifying students who …

Development, Fabrication, And Characterization Of A Vertical-Diffused Mos Process For Power Rf Applications, Kazuya Tokunaga

Theses

High power radio frequency (RF) applications have become important because of a growing demand from the wireless market. With their superior switching speed, power Metal-Oxide-Semiconductor Field Effect Transistors (MOSFETs) have become one of the well-known technologies used in high power RF systems. The primary focus of this thesis work was the development, fabrication, and characterization of discrete Verticaldrain lateral-Diffused MOS (VDMOS) power transistors using an interdigitated source/gate design. Several types of high power devices were also presented for comparison to the VDMOS structure. This thesis describes the overall purpose and the objectives of the proposed project, and provides the methodology …

Experimental Investigation On The Effects Of Surface Roughness On Microscale Liquid Flow, Tim Brackbill

Theses

Microfluidics has become of interest recently with shrinking device sizes. Roughness structures left from machining processes on the inside of tubes and channels that were once not a concern may now create relative roughness that exceeds 5%. Confusion still exists in the literature as to the extent of the effects of roughness on laminar flow. This work aims to experimentally examine the effects of different roughness structures on internal flows in high aspect ratio rectangular microchannels. A total of four test sections were fabricated to test samples with different patterned rough surfaces, and to also vary the two opposite surfaces …

Reincarnating The Micro Universe, Jeong Ah Bae

Theses

My “Reincarnation Series” traces the meaning of life, rebirth and the cycle of transformation. It is an outcome of my quest to bridge the internal and external worlds of human experience, rich with polarities and full of complementary forces and opposite energies, properties, and attributes. This blending of contrasts in our world creates beauty. My work stems from my belief in Buddhism and portrays the full engagement in the world of a person’s unreserved presence, including mental, emotional, physical, and spiritual energies. My work reveals how each individual is in a fluid web, within and without consciousness, receptive to growth. …

The Influence Of Street Culture On Brand Identity In Graphic Design, Holly Parshall

Theses

Problem Statement: This thesis explores the influence of street culture on brand identity in graphic design. Aspects of street culture include skateboarding, hip-hop, rap, punk, and street art. Street art is traditionally thought of as illegal or rebellious mark-making of public property or property that does not belong to the person making marks on it. Street art can also be defined as a means of crafting personal expression through the enhancement or augmentation of a natural or man-made environment. In this study, brand identity is defined as "the controllable and fundamental elements of a company, product, or service brand, such …

Sublethal And Killing Effects Of Atmospheric-Pressure, Nonthermal Plasma On Eukaryotic Microalgae In Aqueous Media, Ying Zhong Tang, Xin Pei Lu, Mounir Laroussi, Fred C. Dobbs

OES Faculty Publications

In-depth studies on the interaction of nonthermal plasmas with microorganisms usually focus on bacteria; only little attention has been given to their effects on more complex eukaryotic cells. We report here nonthermal plasma's effects on cell motility, viability staining, and morphology of eukaryotic microalgae, with three marine dinoflagellates and a marine diatom as major targets. The effects on motility and viability staining depended on the time of exposure to plasma and the species of microalgae. We observed a strong pH decrease in aqueous samples (marine and freshwater algal cultures, their culture media, and deionized water) after exposure to plasma, and …

Deep Freeze And The Nssa Labs, Jay Snell

Theses

This work represents a formative evaluation of the effect of Deep Freeze on the labs in the Networking, Security, and Systems Administration department. This department maintains 4 labs for student use and has implemented Deep Freeze, a software package intended to maintain a standard set of configurations on each computer. In order to provide a proper focus to the evaluation, the process consisted of identifying specific evaluation questions, first through a diverging process, including the input of key stake holders, followed by a converging process. The data was collected using both a survey instrument and interviews, providing both quantitative and …

Computational Model Of Mst Neuron Receptive Field And Interaction Effect For The Perception Of Self-Motion, Chen-Ping Yu

Theses

Biologically plausible approach is an alternative to conventional engineering approaches when developing algorithms for intelligent systems. It is apparent that biologically inspired algorithms may yield more expensive calculations when comparing its run time to the more commonly used engineering algorithms. However, biologically inspired approaches have great potential in generating better and more accurate outputs as healthy human brains. Therefore more and more new and exciting researches are being experimented everyday in hope to develop better models of our brain that can be utilized by the machines. This thesis work is an effort to design and implement a computational model of …

Weee And Rohs: Are They Spurring Innovation Among Small And Medium Sized Electronics Businesses In The U.S.?, Frances L. Cabrera

Theses

Eight small businesses in the electronics industry from Rochester, NY were studied in order to determine whether the European Union’s directives, Waste Electrical and Electronic Equipment (WEEE) and Restriction of Hazardous Substances Directives (RoHS) are spurring innovation in the US. Innovation was defined as any change in the design and manufacturing of the products, in the internal organizational structure and management of the business, or in the market strategies pursued by the small businesses that created a benefit beyond RoHS and WEEE compliance. Because WEEE and RoHS are based upon extended producer responsibility principles, this innovation would complement the findings …

Interactions Between Changing Pco2, N2 Fixation, And Fe Limitation In The Marine Unicellular Cyanobacterium Crocosphaera, Fei-Xue Fu, Margaret R. Mulholland, Nathan S. Garcia, Aaron Beck, Mark E. Warner, Sergio A. Sañudo, David A. Hutchins

OES Faculty Publications

We examined the physiological responses of steady-state iron (Fe)-replete and Fe-limited cultures of the biogeochemically critical marine unicellular diazotrophic cyanobacterium Crocosphaera at glacial (19 Pa; 190 ppm), current (39 Pa; 380 ppm), and projected year 2100 (76 Pa; 750 ppm) CO₂ levels. Rates of N₂ and CO₂ fixation and growth increased in step with increasing partial pressure of CO₂ (pCO₂), but only under Fe- replete conditions. N₂) and carbon fixation rates at 75 Pa CO₂ were 1.4-1.8-fold and 1.2-2.0-fold higher, respectively, relative to those at present day and glacial pCO_{2 …}

Efficient Data Access Techniques For Large Structured Data Files, Payal Patel

Theses

The project focuses on programming solutions like multi-threaded reading, preprocessing of data, and using memory mapped files provided by the Java New I/O API to reduce I/O bottlenecks which is one of the major performance degrading factors for faster data access. The project also explores the possibility of utilizing databases as a solution to study and compare the performance of database querying over flat file reading.

The Road Ahead: A Dynamic, Interactive, And Multidimensional Flash Website, Hung-Ju Hsia

Theses

Everyone has several dreams in his/her life. To be an International student in the United States, I am fulfilling one of my dreams. At December 17th 2001, I stepped on the United States, a dream territory where I had never been to, and started a fantastic journey. Everything was so fresh to me. In California, I felt the warm sunshine, friendly people, and a vigorous life style. In New York, I found beautiful snow, a serious attitude on working, and a stylish life style. Traveling across the country, I realized why people call America a dream territory. Maybe two years …

Chemistry, Hiroki Sato

Theses

Chemistry by Hiroki Sato, M.F.A Thesis, Rochester Institute of Technology, 2008 A description of the creation of a 3D computer animated film, "Chemistry," a project whose goal is to invoke an emotional response in the audience as they watch a reaction between a crystal and a light bulb in a laboratory. Includes thesis proposal, budget, timeline, original story boards, color stills, and a code for a Maya Python tool that helps to create and animate some complex geometrical objects.

2008 Georgia Southern University Women's Soccer Media Guide, Georgia Southern University

Women's Soccer Records

• Georgia Southern Women's Soccer 2008 Media Guide

Georgia Southern Magazine, Georgia Southern University

Georgia Southern Magazine

• Campus News
• Biodiversity University
• Foundation News
• Sports Scene
• Three Cheers for Cheerleading!
• Chronicles
• Preserving History

The Mechanism Of Silver Dissolution For Biomedical Devices And Hygienic Coating Applications., Yanmei Ma

Doctoral

This work focuses on the mechanism of silver dissolution for biomedical and hygienic coating applications. The research work began from the investigation of silver dissolution behaviour from pure silver and silver-platinum alloys in solutions with or without chloride using the technique of cyclic volammetry (CV). A zero resistance amperometry (ZRA) measurement was carried out to study the effect of platinum on the silver dissolution behaviour in 0.89%wt. NaCI solution. The mechanism of silver dissolution from pure silver and silver-platinum alloys in 0.89%wt. NaCI solution was proposed by an equivalent circuit model under the investigation of electrochemical impedance spectroscopy (EIS). It …

2008 - 2009 Undergraduate Catalog, Armstrong Atlantic State University

Armstrong Office of the Registrar: Undergraduate Catalogs (Archived)

Academic catalog for Armstrong Atlantic State University.

A Longitudinal Study Of The Effects Of Child Maltreatment On Later Outcomes Among High-Risk Adolescents, Kimberly A. Tyler, Katherine A. Johnson, Douglas A. Brownridge

Department of Sociology: Faculty Publications

The current study longitudinally examines the effects of child maltreatment, parenting, and disadvantaged neighborhood on victimization, delinquency, and well-being via running away and school engagement among a sample of 360 high-risk adolescents. Results of a path analysis revealed that parenting was associated with school engagement, running away, and well-being. Childhood neglect was related to victimization while sexual abuse and living in a more disadvantaged neighborhood were associated with poorer wellbeing. Greater school engagement was associated with higher levels of well-being and a lower likelihood of delinquency. Finally, running away was positively associated with participating in delinquent activities. In terms of …

Rapid Dissemination Of Francisella Tularensis And The Effect Of Route Of Infection, S. S. Ojeda, Z. J. Wang, Chris A. Mares, T. A. Chang, Q. Li, E. G. Morris, P. A. Jerabek, J. M. Teale

Biology Faculty Publications (Archived)

Background. Francisella tularensis subsp. tularensis is classified as a Category A bioweapon that is capable of establishing a lethal infection in humans upon inhalation of very few organisms. However, the virulence mechanisms of this organism are not well characterized. Francisella tularensis subsp. novicida, which is an equally virulent subspecies in mice, was used in concert with a microPET scanner to better understand its temporal dissemination in vivo upon intranasal infection and how such dissemination compares with other routes of infection. Adult mice were inoculated intranasally with F. tularensis subsp. novicida radiolabeled with 64Cu and imaged by microPET at 0.25, 2 …

About Facebook - Change At The Social-Networking Juggernaut Creates New Opportunities For Law Library Outreach, Jennifer L. Behrens

Faculty Scholarship

No abstract provided.

Attitudes Of Indiana Specialeducation Teachers Towards The Use And Implementation Of Assistive Technology, Bruce H. Guggenberger

All-Inclusive List of Electronic Theses and Dissertations

This study examines the attitudes of specialEducation towards the use and implementation of Assistive Technology (AT). The study attempts to determine a relationship between the attitudes of teachers and the presence of an Assistive Technology Coordinator/Committee, whether the school is part of the Individualized Classroom Accountability Network (ICAN) project, the type of disability, and grade level of the student. The study was influenced by Everett Rogers's Diffusion of Innovation theory. The mixed-method research was conducted using specialEducation teachers within the State of Indiana. A sample of 164 specialEducation teachers responded to the quantitative survey. Each subject completed a 28 question …

Killing In Combat And World Assumptions, Jennifer Mcdonner

All-Inclusive List of Electronic Theses and Dissertations

The current research was qualitative in nature, exploring the experience of having killed in combat from a constructivist and phenomenological framework. The researcher used semi-structured interviews to examine the lived experiences of U.S. soldiers who have killed in combat and how those experiences relate to fundamental assumptions such as benevolence of the world, meaningfulness of the world, and inherent self worth as proposed by Janoff-Bulman. Participants were four men and one woman who served in Operation Iraqi Freedom. The researcher identified thematic networks of the evolving self, the self in relation to others, and the impermanence of the environment as …

Beyond Content, Deeper Than Delivery: What Critique Feedback Reveals About Communication Expectations In Design Education, Deanna Dannels, Amy Housley Gaffney, Kelly Norris Martin

International Journal for the Scholarship of Teaching & Learning

In design education, the critique is a communication event in which students present their design and critics provide feedback. Presumably, the feedback gives the students information about their progress on the design. Yet critic feedback also serves a socializing function—providing students information about what it means to communicate well in the design education context. Using a qualitative research methodology, this study explores what critic feedback reflects about expected communication competencies in design studios. Results suggest that communication competence in this setting involves interaction management, demonstration of design evolution, transparent advocacy of intent, explanation of visuals, and the staging of the …

Performance Of Privatised And Private Firms : Empirical Evidence From Egypt, Mohamed Bahaa El Din Mohamed M. M. Bekheit

Plymouth Business School Theses

Privatisation has been a major political and economic phenomenon over the past few decades, and researchers continue to target it for both theoretical and empirical work. The objective of this thesis is to evaluate the Egyptian experiment concerning its privatisation programme, and to determine whether this programme has affected the performance of privatised firms. Using 15 years of data, which cover the period 1990/1991 to 2004/2005; this thesis empirically investigates three main issues. Firstly, it examines whether the performance of privatised firms improves following privatisation through comparing pre- and postprivatisation performance in terms of profitability, operating efficiency, output, leverage and …

Electrocatalytic Oxidation Of D-Glucose Using A Cd Ad-Atom-Modified Au(111) Electrode In Alkaline Solution, Zekerya Dursun, Sami Ben Aoun, Isao Taniguchi

Turkish Journal of Chemistry

Au(111) single crystal electrodes were modified by underpotential deposition (UPD) of Cd ad-atoms with different coverages, which were used for the electrocatalytic oxidation of glucose in alkaline media. The catalytic activity of the electrodes was dependent on how the Cd ad-atoms covered the surface. Under the presented experimental conditions the monolayer (ML) Cd ad-atom-covered Au(111) electrode had the best catalytic activity on D-glucose oxidation, in terms of both potential shifts and peak current increases, as compared to the 0.11, 0.5, and 2 ML covered and bare Au(111) electrodes. Double layer capacity measurements revealed that the shifts of the potential of …

Synthesis And Characterization Of A Novel Metal Phosphonate, Zirconium (Iv)-Hydroxy Ethylidene Diphosphonate, And Its Application As An Ion Exchanger, Amit Jayswal, Uma Chudasama

Turkish Journal of Chemistry

A novel hybrid ion exchange material, Zirconium-hydroxy ethylidene diphosphonate [ZrHEDP], of the class of tetravalent metal acid (TMA) salts has been synthesized by the sol-gel technique. The material was characterized with elemental analysis (ICP-AES), thermal analysis (TGA, DSC), and FT-IR and X-ray diffraction studies. The chemical resistivity of the material in various media was evaluated. ZrHEDP was further investigated for its possible use as an ion exchanger. The Na^+ ion-exchange capacity (IEC) of the material was determined, and kinetics and thermodynamics of exchange for the metal ions Cu(II), Ni(II), Zn(II), and Mn(II) towards ZrHEDP were studied. The sorption of the …