Digital Commons Network^™

Validity And Stability Of The Decisional Balance For Sun Protection Inventory, Hui-Qing Yin, Joseph S. Rossi, Colleen A. Redding, Andrea L. Paiva, Steve F. Babbin, Wayne F. Velicer

Cancer Prevention Research Center Faculty Publications

The 8-item Decisional Balance for sun protection inventory (SunDB) assesses the relative importance of the perceived advantages (Pros) and disadvantages (Cons) of sun protective behaviors. This study examined the psychometric properties of the SunDB measure, including invariance of the measurement model, in a population-based sample of N = 1336 adults. Confirmatory factor analyses supported the theoretically based 2-factor (Pros, Cons) model, with high internal consistencies for each subscale (α ≥.70). Multiple-sample CFA established that this factor pattern was invariant across multiple population subgroups, including gender, racial identity, age, education level, and stage of change subgroups. Multivariate analysis by stage …

Soil Respiration Patterns And Controls In Limestone Cedar Glades, Jennifer Cartwright, Dafeng Hui

Biology Faculty Research

Aims

Drivers of soil respiration (R s ) in rock outcrop ecosystems remain poorly understood. We investigated these drivers in limestone cedar glades, known for their concentrations of endemic plant species and for seasonal hydrologic extremes (xeric and saturated conditions), and compared our findings to those in temperate grasslands and semi-arid ecosystems.

Methods

We measured R s , soil temperature (T s ), volumetric soil water content (SWC), soil organic matter (SOM), soil depth, and vegetation cover monthly over 16 mo and analyzed effects of these variables on R s .

Results

Seasonally, R s primarily tracked T …

Perspectives On Languages For Specifying Simulation Experiments, Luiz Felipe Perrone, Johannes Schützel, Danhua Peng, Adelinde Urhmacher

Faculty Journal Articles

While domain specific languages are well established for describing the system of interest in modeling and simulation, the last years have seen increasingly domain specific languages also exploited for specifying experiments. This development, whose application areas range from computational biology to network simulation, is motivated by the desire to facilitate the reproducibility of simulation results. Thereby, the experimentation process is treated as a first class object of simulation studies. As the experimentation process contains different tasks such as configuration, observation, analysis, and evaluation, domain-specific languages can be exploited to specify experiments as well as individual sub-tasks or even the goal …

Data Visualization For Network Simulations, Luiz Felipe Perrone, Greg L. Shrock, Christopher S. Main

Faculty Journal Articles

As many other kinds of simulation experiments, simulations of computer networks tend to generate high volumes of output data. While the collection and the statistical processing of these data are challenges in and of themselves, creating meaningful visualizations from them is as much an art as it is a science. A sophisticated body of knowledge in information design and data visualization has been developed and continues to evolve. However, many of the visualizations created by the network simulation community tend to be less than optimal at creating compelling, informative narratives from experimental output data. The primary contribution of this paper …

Baysian And Nonbaysian Methods To Estimate The Two Parameters Of Logistic Distribution, Iden H. Alkanani, Sara S. Taher

Baghdad Science Journal

In this paper ,the problem of point estimation for the two parameters of logistic distribution has been investigated using simulation technique. The rank sampling set estimator method which is one of the Non_Baysian procedure and Lindley approximation estimator method which is one of the Baysian method were used to estimate the parameters of logistic distribution. Comparing between these two mentioned methods by employing mean square error measure and mean absolute percentage error measure .At last simulation technique used to generate many number of samples sizes to compare between these methods.

Convergence Of The Generalized Homotopy Perturbation Method For Solving Fractional Order Integro-Differential Equations, Sameer Qasim Hasan, Ali Adnan Abdul Sahib

Baghdad Science Journal

In this paper,the homtopy perturbation method (HPM) was applied to obtain the approximate solutions of the fractional order integro-differential equations . The fractional order derivatives and fractional order integral are described in the Caputo and Riemann-Liouville sense respectively. We can easily obtain the solution from convergent the infinite series of HPM . A theorem for convergence and error estimates of the HPM for solving fractional order integro-differential equations was given. Moreover, numerical results show that our theoretical analysis are accurate and the HPM can be considered as a powerful method for solving fractional order integro-diffrential equations.

Oscillations Of First Order Neutral Differential Equations With Positive And Negative Coefficients, Hussain Ali Mohamad, Muntaha Yousif Abdullah

Baghdad Science Journal

Oscillation criterion is investigated for all solutions of the first-order linear neutral differential equations with positive and negative coefficients. Some sufficient conditions are established so that every solution of eq.(1.1) oscillate. Generalizing of some results in [4] and [5] are given. Examples are given to illustrated our main results.

Corrosion Behavior Of Copper And Carbon Steel In Acidic Media, Ekhlas A. Salman Al-Zubidy, Rana A. Hummza

Baghdad Science Journal

The corrosion behavior of copper and carbon steel in 1M concentration of hydrochloric acid (HCl) and sulphuric acid (H2SO4) has been studied. The corrosion inhibition of copper and carbon steel in 1M concentration of hydrochloric acid (HCl) and sulphuric acid (H2SO4) by Ciprofloxacin has been investigated. Specimens were exposed in the acidic media for 7 hours and corrosion rates evaluated by using the weight loss method. The effect of temperature (from 283 ºK to 333 ºK), pH (from 1 to 6), inhibitor concentration (10-4 to 10-2) has been studied. It was observed that sulphuric acid environment was most corrosive to …

The Modified Quadrature Method For Solving Volterra Linear Integral Equations, Mahmood A. Shamran, Sami Abdulla Abid

Baghdad Science Journal

In this paper the modified trapezoidal rule is presented for solving Volterra linear Integral Equations (V.I.E) of the second kind and we noticed that this procedure is effective in solving the equations. Two examples are given with their comparison tables to answer the validity of the procedure.

New Iterative Method For Solving Nonlinear Equations, Rasha J. Mitlif

Baghdad Science Journal

The aim of this paper is to propose an efficient three steps iterative method for finding the zeros of the nonlinear equation f(x)=0 . Starting with a suitably chosen X0 , the method generates a sequence of iterates converging to the root. The convergence analysis is proved to establish its five order of convergence. Several examples are given to illustrate the efficiency of the proposed new method and its comparison with other methods.

Applied Energy Systems - Rudimentary Fluid Mechanics, Jim Mcgovern

Book/Book Chapters

This is a compact textbook for a module addressing rudimentary fluid mechanics within the context of applied energy systems. It is at an introductory level for engineers or technologists. The book does not attempt to cover the principles of fluid mechanics comprehensively. Rather, it provides a practical but theoretically sound foundation, linked to two key areas: hydrostatic power transmission systems and the flow of fluids through pipes and fittings. This selection allows the two areas to be presented in some detail. Through this approach learners can put the principles of fluid mechanics into context, while developing their knowledge and understanding. …

Differences In The Diversity Of Frogspecies Between Sierra Lloronaand El Valle, Panama, Kei Okabe Thurber

Independent Study Project (ISP) Collection

Panama is home to the greatest diversity of species in all of Central America. It is home to 174 species of frogs, 35 of which are endemic to Panama. Frogs are a vital part of many ecosystems. They maintain insect populations and act as food sources for larger predators. Their job of maintaining insect populations is essential to curbing the spread of diseases. Additionally, scientists have found chemical compounds in the skin of frogs that can be used to treat pain and prevent infections. The main threat to the majority of frogs is the deadly fungus Batrachochytrium dendrobatidis (Bd), or …

Q-Muse: A Quantum Computer Music System Designed For A Performance For Orchestra, Electronics And Live Internet-Connected Photonic Quantum Computer, A Kirke, P Shadbolt, A Neville, A Antoine, E Miranda

School of Art, Design and Architecture

Quantum computing is a form of unconventional computation utilizing quantum effects as a fundamental part of its calculations. It has already been used in practical signal encryption in the 2010 Soccer World Cup, and there is competition amongst many governments to build more powerful and practical quantum computers. Although quantum computing is the most widespread and invested in form of unconventional computation, there have been no implementations of artistic systems with live hardware quantum computers. Furthermore there is a vast gap between public understanding of classical digital computing and of quantum computing. Q-Muse is a quantum computer music system design …

Antimicrobial Properties Of Nano-Silver: A Cautionary Approach To Ionic Interference, Kate Sheehy, Alan Casey, Anna Murphy, Gordon Chambers

Articles

Hypothesis: Metallic nanoparticles such as nano-silver have found many applications as alternative antimicrobials in recent years. However methods for determining their proposed antimicrobial activity have received little attention to date. The disk diffusion assay is commonly used as a demonstration of antimicrobial properties and is a regular feature in synthetic nanoparticle papers. The aim of this study was to assess its effectiveness in demonstrating the ‘‘nanoparticle specific’’ antimicrobial properties in the absence of ionic contributions from unreacted reducing agents and or impurities. Experiments: The disk diffusion assay was carried out on a range of silver nanoparticles, both in-house synthesised and …

Frameworks For Nurturing And Assessing Students’ Statistical Thinking In Regression Modelling, Wing Kin, Ken Li

Practical Social and Industrial Research Symposium

No abstract provided.

A Study Of Mobile Learning For Higher Education Students In Guangzhou, Chun Hung, Hugo Wong

Practical Social and Industrial Research Symposium

No abstract provided.

Tvet As An Important Factor In Country’S Economic Development, Margarita Pavlova

Practical Social and Industrial Research Symposium

In this keynote speech, Dr Pavlova will bring together a number of strategic development areas for Hong Kong as stated in the 2014 Chief Executive’s Policy Address. These areas include economic development, innovation and technology industries, vocational education and environmental protection.

Technology Integration For Common Core State Standards Implementation: Developing Differentiated Professional Development Based On The Concerns-Based Adoption Model, Tami Boatright

Dissertations

Teachers must learn how to integrate technology for CCSS implementation in an educational environment tasked with preparing 21st century students to not only survive, but thrive in a knowledge-based global society. The changes required for 21st century learning to prepare 21st century students is transformational in nature and represents a paradigm shift for many teachers. The purpose of this quantitative study was to examine the differences in teachers’ Stages of Concern with integrating technology for implementation of CCSS according to age, gender, and years of teaching. In addition it was the purpose of this study to use information obtained from …

Role Of Medio-Dorsal Frontal And Posterior Parietal Neurons During Auditory Detection Performance In Rats, Kaitlin S. Bohon, Michael C. Wiest

Faculty Research and Scholarship

To further characterize the role of frontal and parietal cortices in rat cognition, we recorded action potentials simultaneously from multiple sites in the medio-dorsal frontal cortex and posterior parietal cortex of rats while they performed a two-choice auditory detection task. We quantified neural correlates of task performance, including response movements, perception of a target tone, and the differentiation between stimuli with distinct features (different pitches or durations). A minority of units—15% in frontal cortex, 23% in parietal cortex—significantly distinguished hit trials (successful detections, response movement to the right) from correct rejection trials (correct leftward response to the absence of the …

Antifungal Amphiphilic Aminoglycoside K20: Bioactivities And Mechanism Of Action, Sanjib K. Shrestha, Cheng-Wei Tom Chang, Nicole Meissner, John Oblad, Jaya P. Shrestha, Kevin N. Sorensen, Michelle M. Grilley, Jon Y. Takemoto

Chemistry and Biochemistry Faculty Publications

K20 is a novel amphiphilic antifungal aminoglycoside that is synthetically derived from the antibiotic kanamycin A. Reported here are investigations of K20′s antimicrobial activities, cytotoxicity, and fungicidal mechanism of action. In vitro growth inhibitory activities against a variety of human and plant pathogenic yeasts, filamentous fungi, and bacteria were determined using microbroth dilution assays and time-kill curve analyses, and hemolytic and animal cell cytotoxic activities were determined. Effects on Cryptococcus neoformans H-99 infectivity were determined with a preventive murine lung infection model. The antifungal mechanism of action was studied using intact fungal cells, yeast lipid mutants, and small unilamellar lipid …

Comite De Apoyo A Los Trabajad V. Thomas E. Perez

2014 Decisions

USDC for the Eastern District of Pennsylvania

Daily Eastern News: December 05, 2014, Eastern Illinois University

December

No abstract provided.

A Niobium Deposit Hosted By A Magnetite–Dolomite Carbonatite, Elk Creek Carbonatite Complex, Nebraska, Usa, Michael J. Blessington

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

The Elk Creek Carbonatite Complex (ECCC) is a large Early Cambrian carbonatite complex that intrudes Precambrian basement rocks in Southeast Nebraska. This dolomitic carbonatite complex includes a magnetite-dolomite rock with accessory barite, ilmenite, rutile, and quartz. This rock is identified by a characteristic enrichment in niobium due to accessory pyrochlore mineralization in the form of disseminations and inclusions in ilmenite and magnetite. Pyrochlore is also present in other carbonatite rocks in the complex as an accessory mineral with sporadic local high-grade intercepts in drill cores.

Carbonatite rock samples are characterized by transmitted-light microscopy, cathodoluminescent microscopy, backscattered electron imaging (BEI), and …

Combating Eutrophication: An Ecosystem Scale Analysis Of Aluminum Sulfate (Alum) Effectiveness Among Lakes, With Comparison To Alum And Biomanipulation Dual Treatment, Christa M. Webber

School of Natural Resources: Dissertations, Theses, and Student Research

Eutrophic conditions in lakes and reservoirs in agricultural regions often drive summer blooms of toxic cyanobacteria. Aluminum sulfate (alum) applications are commonly used to control cyanobacteria blooms and restore water quality in eutrophic lakes. However, studies of alum treatments often lack true replication, comparison to reference lakes, or comparison to other restoration techniques, such as an alum and biomanipulation combined or “dual” treatments. Without these comparisons, the variation of treatment response between replicate lakes and restoration techniques remains uncertain. Therefore, I sought to assess how water quality is affected by multiple restoration techniques among geographically proximate (1.4 km²) …

Vibrational And Structural Signatures Of The Crossover Between Dense Glassy And Sparse Gel-Like Attractive Colloidal Packings, Matthew A. Lohr, Tim Still, Raman Ganti, Matthew D. Gratale, Zoey S. Davidson, Kevin B. Aptowicz, Carl P. Goodrich, Daniel M. Sussman, A. G. Yodh

Physics & Engineering Faculty Publications

We investigate the vibrational modes of quasi-two-dimensional disordered colloidal packings of hard colloidal spheres with short-range attractions as a function of packing fraction. Certain properties of the vibrational density of states (vDOS) are shown to correlate with the density and structure of the samples (i.e., in sparsely versus densely packed samples). Specifically, a crossover from dense glassy to sparse gel-like states is suggested by an excess of phonon modes at low frequency and by a variation in the slope of the vDOS with frequency at low frequency. This change in phonon mode distribution is demonstrated to arise largely from localized …

Student Learning Outcomes Poster Session For Csb/Sju Joint Board Of Trustees Meeting, December 5th, 2014, Pamela L. Bacon, Bret Benesh, Carie Braun, Brian Campbell, Theresa Johnson, Jeanne Cofell, Catherine Bohn-Gettler, Janean Kleist, Michelle Li-Kuehne, Barbara May, Janna Lafountaine, Megan Lampel, Zainab Oke, Emily Schroeder, Katherine Thao, Anya Winkler, Sanford L. Moskowitz, Lisa M. Lindgren, Charles W. Wright, Abraham Lauer, Joshua St. George, Bryan Van Der Heiden

Office of Academic Review and Curricular Advancement Staff Publications

A faculty and student poster session was held focusing on student learning outcomes at the December 5^th, 2014 joint Board of Trustee meeting. The posters focused on using assessment of student learning to improve teaching and learning and covered student learning outcomes at the course, departmental, and institutional levels.

Ms171: Interview With Margaret Kripke, Margaret Kripke Ph.D., Houston Academy Of Medicine-Texas Medical Center Library

Texas Medical Center - Women's History Project

An oral history interview with Margaret Kripke. See more at Texas Medical Center-Women's History Project and its finding aid.

Ms171: Interview With Ritsu Komaki, Ritsu Komaki Md, Facr, Fastro, Houston Academy Of Medicine-Texas Medical Center Library

Texas Medical Center - Women's History Project

An oral history interview with Ritsu Komaki. See more at Texas Medical Center-Women's History Project and its finding aid.

Vagal Nerve Stimulation Therapy: What Is Being Stimulated?, Guy Kember, Jeffrey L. Ardell, John A. Armour, Mair Zamir

ETSU Faculty Works

Vagal nerve stimulation in cardiac therapy involves delivering electrical current to the vagal sympathetic complex in patients experiencing heart failure. The therapy has shown promise but the mechanisms by which any benefit accrues is not understood. In this paper we model the response to increased levels of stimulation of individual components of the vagal sympathetic complex as a differential activation of each component in the control of heart rate. The model provides insight beyond what is available in the animal experiment in as much as allowing the simultaneous assessment of neuronal activity throughout the cardiac neural axis. The results indicate …

Western At War: Western Michigan College During World War Ii, Patrick Hargis

Honors Theses

This research paper examines the programs and policies put into action by Western Michigan College during World War II and how the war shaped the college. This research primarily utilized primary documents generated by the college’s wartime committee, President Paul Sangren, yearbooks and other ephemera. Little research has been done in this area focused on Western Michigan College, and the little research that has been done has focused on the Navy V-12 program that existed on campus at the time. While this research includes the V-12 program, as well as the various other military programs active at the time, a …