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Vibrio Cholerae H-Ns Silences Virulence Gene Expression At Multiple Steps In The Toxr Regulatory Cascade, Melinda B. Nye, James D. Pfau, Karen Skorupski, Ronald K. Taylor

Dartmouth Scholarship

H-NS is an abundant nucleoid-associated protein involved in the maintenance of chromosomal architecture in bacteria. H-NS also has a role in silencing the expression of a variety of environmentally regulated genes during growth under nonpermissive conditions. In this study we demonstrate a role for H-NS in the negative modulation of expression of several genes within the ToxR virulence regulon ofVibrio cholerae. Deletion of hns resulted in high, nearly constitutive levels of expression of the genes encoding cholera toxin, toxin-coregulated pilus, and the ToxT virulence gene regulatory protein. For the cholera toxin- and ToxT-encoding genes, elevated expression in an …

Bipolar Disorder And Locus Of Control: Implications For Treatment Compliance, Linda J. Ryan-Cox

Theses

Theoretically, a paradigm shift in the 1960s made community-based care and out-patient treatment an acceptable alternative to institutionalization of the chronically mentally ill. Utilizing the Levenson Multidimensional Locus of Control Scale for Psychiatric Patients, the author conducted a causal-comparative study to determine if a link exists between having bipolar disorder, a chronic mental illness, and an external locus of control, a link which might explain the inability of this population to maintain their optimal level of mental health utilizing the out-patient treatment model. Though the study failed to demonstrate any significant differences in external measures of loci of control between …

Using A Multiple Intelligence Checklist In Determining Multiple Intelligence, Rebecca Vee Ralston

Theses

Multiple Intelligence Theory was introduced in 1983 by Howard Gardner in his book Frames of Mind. Since the book was introduced. many educators who were searching for new methods to reach their students have utilized the theory of Multiple Intelligences in their classes. To assist in determining students' areas of strength in Multiple Intelligence. The Multiple Intelligence Checklist (MJC) was used in this study. Students, seven hundred seventy-seven, from a suburban elementary school were asked to complete the MIC. Data was collected from students in grades 2 through 5. A factor analysis was completed to determine if the checklist would …

Child Support Enforcement In West Virginia, Amy Ellen Hendershott

Graduate Theses, Dissertations, and Problem Reports (ETD)

The intent of this research is an exploratory examination of trends in child support enforcement before and after the implementation of The Personal Responsibility and Work Opportunity Reconciliation Act of 1996 (PRWORA) and to determine whether West Virginia is keeping up with the national average of child support enforcement. Using a time-trend analysis, this study examined five variables that constitute child support enforcement: total money distributed; paternities established; support orders established; absent parents located; and total caseload. This research found that the PRWORA of 1996 significantly improved paternities established and absent parents located in the state of West Virginia. All …

Women's Income-Generating Activities In Turkey, Nihan Kayaardi

Theses and Dissertations - UTB/UTPA

Home working has recently reemerged in both less-developed and developed countries. It is observed in both unskilled and highly skilled work. In general, there are no estimates of the number of women who bring work into their homes. Home working is part of the informal economy that is disguised and shadowed in the economy. Most of this type of employment is hidden in official statistics. In Turkey, for example the female informal labor force is about 68% (Kumbetoglu, 1993). Most of the work done by the women is piecework, and their earnings depend on the piece-rate.

This thesis utilizes existing …

Theory Of Magnetostatic Coupling In Thin-Film Rectangular Magnetic Elements, Evgeny Y. Tsymbal

Evgeny Tsymbal Publications

A theory of magnetostatic coupling in thin-film uniformly magnetized arrays of rectangular magnetic elements is presented. Analytic expressions for the magnetostatic energy and the dipolar fields are derived. The influence of the aspect ratio and the spacing between the elements on the magnetostatic coupling is investigated. It is found that increasing the aspect ratio reduces the critical distance between the elements, above which the magnetostatic inter-element coupling can be neglected.

The Design, Modeling And Simulation Of Switching Fabrics: For An Atm Network Switch, Dmitriy Molokov

Theses

The requirements of today's telecommunication systems to support high bandwidth and added flexibility brought about the expansion of (Asynchronous Transfer Mode) ATM as a new method of high-speed data transmission. Various analytical and simulation methods may be used to estimate the performance of ATM switches. Analytical methods considerably limit the range of parameters to be evaluated due to extensive formulae used and time consuming iterations. They are not as effective for large networks because of excessive computations that do not scale linearly with network size. One the other hand, simulation-based methods allow determining a bigger range of performance parameters in …

Experimental Study Of Water Droplets Impinging Upon A Hot Surface, Cong Tran

Theses

The objective of the presence investigation is to study the droplet impingement characteristics on heated and unheated surfaces with different surface roughness. The purpose is to show clear photographs of the impinging droplets from beneath the solid surface. Atmospheric pressure (lOlkpa), surface materials (glass and copper), impinging droplet temperature (T, = 24C), original droplet diameter (4.7mm), and testing liquid (H20) were fixed. A MotionScope PCI8000S high-speed camera was placed beneath the heated glass surface. Droplets of water were dropped on the test surface, which is located 25 mm to 50 mm under the tip of a burette. For the unheated …

Halo Acids And Dmso: Electrophilic Aromatic Substitution At Room Temperature Conditions, Pankaj Kulshrestha

Theses

A simple, safe and cost effective experiment to demonstrate electrophilic aromatic substitution in the undergraduate laboratory can be accomplished by placing a small amount of N,N Dimethyl Aniline or a few crystals of Phenol in an NMR tube containing an appropriate level of deutero DMSO. After observation of the expanded proton NMR spectrum of the aromatic region, a few drops of concentrated HBr and HC1 aqueous acids are added and the NMR spectrum recorded after one hour. Observation of an A,A' B,B' typical four line pattern in the aromatic region of NMR spectrum is direct evidence for the halogenation on …

Experimental And Analytical Modal Analysis Of The Gleason Gp-130 Hob Column Components, Joshua Horvath

Theses

Machine tool vibration has and will be an issue in industry as long as shaping by means of physical material removal continues to be used. Developing a machine that can accommodate this natural vibration that occurs in the cutting process is a goal for every new machine design at the Gleason Works, Rochester. Knowing the vibration signature of a machine is very helpful in determining critical and non-critical cutter excitation frequencies. An analytical frequency analysis of simplified virtual models was completed to aid in the design process of the new Gleason GP130 Hobber. To determine the accuracy of these results, …

Isolation And Characterization Of A Genetic Locus That Confers Tolerance To Cadmium And Zinc In Pseudomonas Fluorescens, Szi Fei Feng

Masters Theses

This thesis describes the isolation and characterization of a region containing several genes involved in metal tolerance in the common soil bacterium, Pseudomonas fluorescens ATCC 13525. The DNA region was identified in a cadmium and zinc sensitive mutant, 45-B10, which contains a lacZ-based reporter gene transposon Tn5-B20 inserted in the chromosome. The DNA surrounding the transposon was cloned from this mutant strain and DNA sequencing of this region revealed seven genes that share similarity with genes whose products are involved in the cation-proton antiporter efflux system of other Gram-negative bacteria. Complete DNA sequence was obtained from four of these …

An Advocate From Within: Making A Difference In The Middle: The World Of Tomorrow In The Hands Of Today, Sherry Lynn Demaine

Theses and Dissertations

No abstract provided.

Determining The Effects On Parental Attitudes And Parenting Styles Towards Child Rearing After Participation In A Rural Parenting Program, Kathryn A. Canter

Graduate Theses, Dissertations, and Problem Reports (ETD)

The intent of this study was to examine parental attitudes toward parenting and parenting styles before and after participation in a rural parent education program. The parental attitudes toward parenting were measured by the Parental Attitude Research Instrument (PARI). The three parenting styles; authoritarian, authoritative, and permissive, were measured by the Parenting Style Dimension (PSD). The participants in this study were six mothers of children who attended either the Starting Points Center Happy School or who visited the Food Pantry at Scott's Run Settlement House in Morgantown, West Virginia.;Cronbach's alphas were run on all measures with high reliability found on …

Effects Of Acetaminophen On Estrogen-Responsive Alkaline Phosphatase In Ishikawa Endometrial Cancer Cells, Janet A. Dowdy

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examines the effect of acetaminophen (APAP) on the estrogen-responsive gene alkaline phosphatase in Ishikawa endometrial cancer cells. Basal levels of alkaline phosphatase activity were significantly inhibited in cells treated with 0.03, 0.1, 0.3 and 1mM APAP compared to control. Alkaline phosphatase activity induced with 1nM estradiol was significantly inhibited in a concentration dependent manner by 0.0.1, 0.3 and 1mM APAP. APAP did not directly inhibit the activity of alkaline phosphatase at any of the concentrations tested. Increasing estradiol concentrations (0.01, 0.1 and 1nM) did not alter the level of inhibition of alkaline phosphatase activity by 0.1, 0.3 or …

Development And Application Electrochemical And Spectrophotometric Methods Based Upon Ac Potential Modulation For Characterization Of Hybrid Bilayer Membranes And Electroactive Self -Assembled Monolayers Supported On Gold Electrodes, Dmitri A. Brevnov

Graduate Theses, Dissertations, and Problem Reports (ETD)

Applications of the electrochemical method, AC Voltammetry (ACV), and its modifications based upon monitoring ac current as a function of ac potential modulation are described. The first chapter involves investigating the effect of a short peptide, melittin, on both hybrid bilayer membrane (HBM) dielectric properties and HBM resistance to heterogeneous electron transfer. These effects are discussed in terms of three possible mechanisms by which melittin may affect HBMs. In the second chapter, a modification of ACV, second harmonic ACV, is considered. A data processing method is suggested to analyze data collected at high perturbation frequencies at which the effect of …

Philosophies Of Adult Education As Practiced By Agricultural Education Teachers In Pennsylvania, West Virginia, And Virginia, Crystal R. Buckingham

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study was to increase understanding of adult education philosophies as practiced by Pennsylvania, West Virginia, and Virginia secondary school agriculture teachers.;A Philosophy of Adult Education Inventory (PAEI) and researcher-created demographic sheet was sent to a sample of agriculture teachers in the tri-state area (n = 314). Descriptive data were analyzed using the Statistical Package for Social Sciences for Windows (SPSS). Frequencies, means, and correlational and multivariate analyses were used to describe and analyze the research results.;It was shown that there is a slight relationship between adult education preparation and the five philosophies. The Humanist philosophy is …

Actinomycotic Liver Abscess, Tarig S. Al-Khuwaitir, Ahmed A. Abdulwahab, Tariq M. El-Sharqawy, Abdullah A. Cheryakkath, Safia M. Sherbeeni

Saudi Medical Journal

Actinomycosis bacteria are known for their disregard to anatomical boundaries and their ability to infect organs all over the body including the liver. Here the infection is usually contained in the form of single or multiple abscesses. The clinical manifestations produced are variable even protean and only in some patients point to the right upper abdominal quadrant. However with appropriate imaging modalities and culture techniques for microaerophilic organisms accurate diagnosis is possible and specific antibiotic therapy can be initiated. We report a patient with an actinomycotic liver abscess and no apparent predisposing factor. She was diagnosed on the basis of …

Imaging Connection August 2000, Chester F. Carlson Center For Imaging Science

RIT Digital Archives

Oh Say Can You See... RIT Scientist Will Help Shine Light on Star Spangled Banner||Collaboration Between RIT and Chiba University||Introducing Associate Director, Joe Pow||Laboratory for Advanced Spectral Sensing (LASS)||Student Scholarships Enhance Recruitment Efforts||Wiedman's Portrait Unveiled in Imaging Science||Imaging Science Teams with MCC and CIPE||The Science of Imaging & The Imaging of Science

Making Law Of War Treaties: Lessons From Submarine Warfare Regulation, Hays W. Parks

International Law Studies

No abstract provided.

International Humanitarian Law From Agincourt To Rome, Theodor Meron

International Law Studies

No abstract provided.

The Initiation, Suspension, And Termination Of War, Yoram Dinstein

International Law Studies

No abstract provided.

Properly Speaking, Only Celestial Bodies Have Been Reserved For Use Exclusively For Peaceful (Non-Military) Purposes, But Not Outer Void Space, Bin Cheng

International Law Studies

No abstract provided.

August 1, 2000, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.

What Shall We Talk About Today? Righteousness As An Issue Of Christian And Islamic Dialogue, Marko P. Djuric

Occasional Papers on Religion in Eastern Europe

No abstract provided.

Progress Rural Western Australia 2000 Conference Proceedings, 18 And 19 August 2000, Fairbridge Farm, Pinjarra, Western Australia., Department Of Agriculture And Food, Western Australia, Progress Rural Western Australia.

All other publications

Conference Aims and Objectives

Aim

To assist in the creation of an excellent life for people in rural. WA

Objectives

• To provide an opportunity for people from right across rural Western Australia to share ideas, learn from each other, energise and develop new skills and knowledge
• To allow conference participants to develop an understanding/about the cutting edge of regional branding and marketing
• To showcase, explore and celebrate successes in agricultural innovations and entrepreneurship
• To motivate people to be pro-active at the planning and implementation level in rural communities.
• To facilitate the development of cohesive, inclusive rural communities that work together …

An Analysis Of The Impact Of Age On The Academic Performance Of Students In The Liberty University External Degree Program, Frank Lyle King

Doctoral Dissertations and Projects

The purpose of this project is to explore whether the age of a Liberty University External Degree Program (EDP) student impacts the degree of student success, as measured by the earned grade point average (GPA). EDP student GPAs were compared with Liberty University resident students GPAs. The EDP students consistently performed better than the resident students in all age groups examined. Demographic variables such as race, gender, socioeconomic status, marital status, military status, and amount of credits transferred to Liberty University were found not to be statistically significant factors in the performance of EDP students compared to resident students.

Accounting For The Complexity Of Causal Explanations In The Wake Of An Environmental Risk, Lee Ann Kahlor, Sharon Dunwoody, Robert J. Griffin

College of Communication Faculty Research and Publications

In 1993, Milwaukee-area residents experienced a nationally publicized outbreak of cryptosporidium, a parasite, which infested the metropolitan drinking supply and sickened some 400,000 people. Using survey data gathered from 610 adult residents in the wake of that outbreak, this study looks at predictors of the complexity of people’s understanding of two causal components of the outbreak: 1) how the parasite got into the water supply and 2) how it causes illness once in the human body. Analysis of open-ended data indicated that, consistent with the knowledge gap hypothesis, socioeconomic status is a significant predictor of differences in explanatory complexity. And, …

Determination Of Phenols In Water Using Solid Phase Microextraction And Fourier Transform Infrared Spectroscopy And Measurement Of Distribution Constants For Solid Phase Microextraction Using A Successive Extraction Technique, Betsy J. Bannier

Theses and Dissertations

Solid phase microextraction (SPME) is an effective method for concentrating organic compounds prior to analysis by a variety of detection methods, including Fourier transform infrared spectroscopy (FTIR) and gas chromatography (GC). The first part of this work focused on the selection of an infrared-compatible solid phase that would partition phenols out of aqueous solutions. The criteria we employed dictated that potential solid phases be polar yet insoluble in water, have open regions in their IR spectra between 400-1200 cm·', 3010-3095 cm·', or 3200-3650 cm·' and be less than 200 μm thick.

Infrared spectra of a variety of proprietary epoxies and …

Adapting To The Information Age, Jens G. Pohl

Collaborative Agent Design (CAD) Research Center

This paper draws attention to the profound changes that human civilization is experiencing as it moves from an industrial environment into an information environment, in which unprecedented emphasis is placed on the knowledge and capabilities of the individual. A clear distinction is drawn between data and information in relationship to computer-based facilities, and the transition of data-processing to the higher levels of information and knowledge representation in quasi intelligent decision-support systems. It is argued that the cultivation of its human capital becomes a foundational requirement for the success of a knowledge-based organization. In such an organization traditional practices of hierarchical, …

Daily Eastern News: July 31, 2000, Eastern Illinois University

July

No abstract provided.