Digital Commons Network^™

Ion Trap Mass Analyzer Apparatus, Methods, And Systems Utilizing One Or More Multiple Potential Ion Guide (Mpig) Electrodes, Curtiss Dwight Hanson

Patents (University of Northern Iowa)

In one aspect of the invention, an ion trap mass analyzer includes a variable- or multi-potential type ion guide (MPIG) assembly which has been pre-configured to produce a parabolic-type potential field. Each MPIG electrode has a resistive coating of designed characteristics. In one example the coating varies in thickness along the length of an underlying uniform substrate. The MPIG assembly can be a single MPIG electrode or an array of a plurality of MPIG electrodes. An array can facilitate delocalization for improved performance. This chemical modification of a uniform underlying substrate promotes cheaper and flexible instruments. The modified MPIG electrodes …

Expanding The Ponzi Scheme Presumption, Dave R. Hague

DePaul Law Review

No abstract provided.

Extending Physical Simulation To The Audio Domain, Graham Mccann, Hugh Mccabe

The ITB Journal

Using physical simulation to control movement and interactions between objects in a 3D environment, such as a computer game, has become increasingly common However; this idea has not been extended in a general sense to the audio domain. The audio component of these systems usually comprises of pre-recorded WAV files that are triggered in response to events. We argue that this approach has serious limitations and propose instead that the physical information made available by physics engines provides an opportunity to carry out synthesis of appropriate sounds from scratch. We outline a framework for adding a sound synthesis module to …

The Ticker, November 16, 2015

The Ticker

The Ticker is the student newspaper of Baruch College. It has been published continuously since 1932, when the Baruch College campus was the School of Business and Civic Administration of the City College of New York.

Cseas Weekly Bulletin (November 16, 2015), Center For Southeast Asian Studies

CSEAS Bulletin

No abstract provided.

Accelerated Taylor Plumes For Mif Targets, Michael R. Brown, D. A. Schaffner, Holden L. Parks , '16, Ariel B. Rock , '16

Physics & Astronomy Faculty Works

The SSX plasma device has been converted to a 2.5 m merging plasma wind tunnel configuration. Experiments are underway to study merging and stagnation of high density, helical Taylor states\footnote{Gray, et al, PRL {\bf 110}, 085002 (2013).} to employ as a potential target for magneto-inertial fusion. Eventually, SSX Taylor states will be accelerated to over 100 km/s and compressed to small volumes either by stagnation or merging. Initial un-accelerated merging studies produce peak proton densities of 5×1015 cm−3. Densities are measured with a precision quadrature He-Ne laser interferometer. Typical merged plasma parameters are Ti=20 eV,Te=10 eV,B=0.4 T with lifetimes of …

Users' Perspective On The Relationship Between Internal Controls And Key Constructs, Santosh Mutnuru

Master's Theses and Doctoral Dissertations

This study sought to understand a user's perspective on the level of influence that internal controls had on the levels of trust, employee engagement, employee performance, and organization performance. The relationship between the level of implementation of internal controls with the level of trust that employees have for their employer, employee engagement, employee performance, and organization performance has not been adequately explored. The study was conducted on users who worked in organizations that implemented Committee of Sponsoring Organizations of the Treadway Commission (COSO) internal controls, and these organizations strictly maintain all of their information in digital format. About nine hundred …

Understanding How Organizations Operate Their It Capacity-Management Processes, Joseph Frederick Bauer

Master's Theses and Doctoral Dissertations

There is a lack of understanding of how organizations operate their IT capacity-management processes. Within the body of literature on IT capacity-management there is an abundance of advice for organizations on how to set up or run the processes for IT capacity-management, but very little in the way of describing the processes as performed and operated in organizations out in the field. Using qualitative methods this research sought to gain an understanding of how organizations are operating their IT capacity-management processes in the field. A dozen subjects from 10 organizations were interviewed and the data were analyzed with a grounded …

The Statesman, V. 59, I. 11, Stony Brook University

Stony Brook Statesman-Sucolian

v.59;i.11

The Role Of Space Materials Research In Spacecraft Charging And Satellite Survivability, Jr Dennison

Presentations

No abstract provided.

Exploring Classroom Practices In Collectivist Cultures Through The Lens Of Hofstede’S Model, Amrita Kaur, Mohammad Noman

The Qualitative Report

This study explores beliefs and classroom practices of teachers from collectivist nations through the lens of Hofstede’s cultural dimensions. In this grounded theory study, an in-depth investigation of the ways in which six teachers from five different collectivist countries described their beliefs and classroom practices was carried out. Through the constant comparative method, the two authors grouped the findings into categories of beliefs and practices which were then examined through the lens of the six dimensions of Hofstede’s model of cultural difference. Six categories of classroom practices, Pedagogy, Interaction, Student Role, Teacher Support, Differential Assessment, and Behavioral Management and three …

Content Abuse And Privacy Concerns In Online Social Networks, Md Imrul Kayes

USF Tampa Graduate Theses and Dissertations

Online Social Networks (OSNs) have seen an exponential growth over the last decade, with Facebook having more than 1.49 billion monthly active users and Twitter having 135,000 new users signing up every day as of 2015. Users are sharing 70 million photos per day on the Instagram photo-sharing network. Yahoo Answers question-answering community has more than 1 billion posted answers. The meteoric rise in popularity has made OSNs important social platforms for computer-mediated communications and embedded themselves into society’s daily life, with direct consequences to the offline world and activities. OSNs are built on a foundation of trust, where users …

Computational Methods For Biomarker Identification In Complex Disease, Amin Ahmadi Adl

USF Tampa Graduate Theses and Dissertations

In a modern systematic view of biology, cell functions arise from the interaction between molecular components. One of the challenging problems in systems biology with high-throughput measurements is discovering the important components involved in the development and progression of complex diseases, which may serve as biomarkers for accurate predictive modeling and as targets for therapeutic purposes. Due to the non-linearity and heterogeneity of these complex diseases, traditional biomarker identification approaches have had limited success at finding clinically useful biomarkers. In this dissertation we propose novel methods for biomarker identification that explicitly take into account the non-linearity and heterogeneity of complex …

A Geometric Approach To Quantum State Separation, E Bagan, V Yerokhin, A Shehu, Edgar Feldman, János A. Bergou

Publications and Research

Probabilistic quantum state transformations can be characterized by the degree of state separation they provide. This, in turn, sets limits on the success rate of these transformations. We consider optimum state separation of two known pure states in the general case where the known states have arbitrary a priori probabilities. The problem is formulated from a geometric perspective and shown to be equivalent to the problem of finding tangent curves within two families of conics that represent the unitarity constraints and the objective functions to be optimized, respectively. We present the corresponding analytical solutions in various forms. In the limit …

Will We Find Gravity Waves?: Physics Professor Involved In Ground-Breaking Research, Danni Francis

Andrews Agenda: Campus News

"The world of science is effectively on the edge of its seat as researchers are close to making revolutionary discoveries in the area of gravity and gravitational waves. Tiffany Summerscales, associate professor of physics at Andrews University, is an active researcher with the Laser Interferometer Gravitational-Wave Observatory (LIGO) collaboration."

Heat Transfer Analysis Of Slot Jet Impingement Onto Roughened Surfaces, Rashid Ali Alshatti

USF Tampa Graduate Theses and Dissertations

The effect of surface roughness on jet impingement heat transfer was investigated in this research. A numerical analysis was conducted for free surface slot jet impinging normally onto a heated plate. Six different geometries and three different plate materials were investigated. The cooling fluid used for the analysis was water, and the flow was laminar with a range of Reynolds number (Re) from 500 to 1000. Temperature distribution, local and average heat transfer coefficient, and local and average Nusselt number were presented for each case.

The steady state heat transfer results show that the increase in Reynolds number (Re) increases …

Cognitive Load Of Registered Nurses During Medication Administration, Sarah Faith Perron

USF Tampa Graduate Theses and Dissertations

Over 4 million avoidable hospital admissions result from medication errors (IMS Insitute for Healthcare Informatics, 2013). Human error accounts for 80% of all medical errors (Palmieri, DeLucia, Peterson, Ott, & Green, 2008). Medication administration is a complex process. It is important to understand the cognitive load (CL) of Registered Nurses (RNs) working in an electronic health record environment to identify the risk factors of medication errors. The purpose of this study is to investigate the factors that influence the CL of RNs during medication administration who are working in an electronic health record environment. Simulated medication administration scenarios with varying …

An Empirical Comparison Of The Effect Of Missing Data On Type I Error And Statistical Power Of The Likelihood Ratio Test For Differential Item Functioning: An Item Response Theory Approach Using The Graded Response Model, Patricia Rodriguez De Gil

USF Tampa Graduate Theses and Dissertations

In the context of educational research, missing data arise when examinees omit or do not reach an item, which generates an item nonresponse problem. Using a simulation approach, in addition to conducting complete data analyses, this study compared the performance of six methods for treating item nonresponse in the context of differential item functioning (DIF). The effect of missing data on the Type I error and statistical power of the Likelihood Ratio test for DIF detection in small scales was examined in the context of Item Response Theory (IRT-LR), using polytomous, Likert-type data and the graded response model. The effect …

Assessing A Monitoring Scale Of Physiological Health And Risk Assessment Among Those Exposed To Heated Environments: A Brief Report, Corey A. Peacock, Ellen L. Glickman, Gabriel J. Sanders, Yong Suk Seo, Brandon S. Pollock, Keith J. Burns, Lynn Kakos, John Gunstad

Journal of Human Performance in Extreme Environments

Background: Prevention of heat illness is of considerable medical interest within the field of occupational work. There are many established methods of perceptual health assessment; however, many are rather unpractical and timely. The objective was to improve the practicality and timeliness of perceptual physiological monitoring; a Heat Thermal Sensation scale has been developed. The usefulness of the scale was assessed on its ability to monitor physiological variable. Materials and Methods: Ten apparently healthy individuals performed physically exerting activity while exposed to 37 °C. Sensation and physiology were measured throughout. Results: The perceptual monitoring scale demonstrated weak positive correlations with human …

Polymeric Porphyrins As Solar Photocatalysts, Nicholas Upton Day

Dissertations and Theses

Research concentrated on the absorption, transformation, and storage of light energy is useful for the energy challenges faced by humanity. In particular, photocatalysis using solar energy to generate useful fuels has become a primary research goal in the drive to replace fossil fuels for the future. In this dissertation it is shown that poly-tetra(4-aminophenyl)porphyrin (pTAPP) can be oxidatively polymerized using a variety of methods, including electropolymerization, chemical oxidation, and interfacial polymerization and that pTAPP has photocatalytic ability to reduce O₂ to H₂O₂ for a storable fuel.

Organic conductive polymers such as pTAPP are attractive catalysts because …

Fathers Caring For Children With Special Health Care Needs: Experiences Of Work-Life Fit, Claudia Sellmaier

Dissertations and Theses

Research about employed fathers of children with special health care needs (SHCN) is still limited, leaving fathers without the necessary workplace and community supports to better integrate work and life. Caregivers with exceptional caregiving responsibilities report greater levels of work-family conflict and considerable caregiver strain, as well as negative employment and financial consequences related to their caregiving responsibilities. These caregivers often struggle to access community supports such as childcare, after-school care, and support from friends and neighbors.

This study provides insights into the types of job, home, and community resources that are relevant for fathers of children with SHCN in …

Field Recording Or Field Observation?: Audio Meets Method In Qualitative Research, Sam Smiley

The Qualitative Report

The field observation, an ethnographic practice of collecting data and information about a given social setting and situation is often used in preliminary research to have an understanding of the community one is researching. However, from an artist/musician's perspective, the field observation has many commonalities with techniques used in audio field recording. How can field recording be used in parallel with field observations to explore and understand a community through art? This essay will begin with a comparison of field observations and field recordings as methods in their own disciplines, and continue with the concept of “attention” in art, music, …

Device-Independent Quantum Key Distribution With Generalized Two-Mode Schrödinger Cat States, Curtis J. Broadbent, Kevin Marshall, Christian Weedbrook, John C. Howell

Mathematics, Physics, and Computer Science Faculty Articles and Research

We show how weak nonlinearities can be used in a device-independent quantum key distribution (QKD) protocol using generalized two-mode Schrödinger cat states. The QKD protocol is therefore shown to be secure against collective attacks and for some coherent attacks. We derive analytical formulas for the optimal values of the Bell parameter, the quantum bit error rate, and the device-independent secret key rate in the noiseless lossy bosonic channel. Additionally, we give the filters and measurements which achieve these optimal values. We find that, over any distance in this channel, the quantum bit error rate is identically zero, in principle, and …

Modest Or Prude? Redeeming Our Wardrobes, Valorie L. Zonnefeld

Faculty Work Comprehensive List

"We live in a sex-saturated society which bombards us with images and innuendos at every turn."

Posting about appropriate clothing choices in a fallen world from In All Things - an online hub committed to the claim that the life, death, and resurrection of Jesus Christ has implications for the entire world.

http://inallthings.org/modest-or-prude-redeeming-our-wardrobes/

National Assessment Of Educational Progress (Naep) Results For 2015, Sarah C. Mckenzie, Gary W. Ritter

Policy Briefs

The National Center for Education Statistics has released this year’s NAEP results which measure nationwide student performance in 4th and 8th grade Reading and Math. NAEP is administered nationally to a representative sample of students from all 50 states, so acts as a standard measure of student performance across states and time. This policy brief will examine Arkansas’ 2015 results and consider possible causes and implications.

Laboratory Scale Optimization Of Alkali Pretreatment For Improvingenzymatic Hydrolysis Of Sweet Sorghum Bagasse, Arosha L. Umagiliyage, Ruplal Choudhary, Yanna Liang, John Haddock, Dennis G. Watson

Articles

Sweet sorghum has been identified as a promising feedstock for biological conversion to fuels as wellas other chemicals. The lignocellulosic stalk of sweet sorghum, called sweet sorghum bagasse (SSB) isa potential source of lignocellulosic biofuel. The primary goal of this study was to determine optimalalkali (lime: Ca(OH)2and lye: NaOH) pretreatment conditions to obtain higher yield of total reducingsugar while reducing the lignin content for biofuel production from SSB. Biomass conversion and ligninremoval were simultaneously optimized through four quadratic models analyzed by response surfacemethodology (RSM). The optimal conditions for lime pretreatment was 1.7% (w/v) lime concentration,6.0% (w/v) SSB loading, 2.4 h …

Founders Keepers Newsletter 2015-11-15, Niu Libraries

University Libraries Archives

No abstract provided.

Structure Symmetry Determination And Magnetic Evolution In Sr2Ir1−XRhXO4, Feng Ye, Xiaoping Wang, Christina Hoffmann, Jinchen Wang, Songxue Chi, Masaaki Matsuda, Bryan C. Chakoumakos, Jaime A. Fernandez-Baca, Gang Cao

Physics and Astronomy Faculty Publications

We use single-crystal neutron diffraction to determine the crystal structure symmetry and the magnetic evolution in the rhodium-doped iridates Sr₂Ir_1−xRh_xO₄ (0≤ x ≤ 0.16). Throughout this doping range, the crystal structure retains a tetragonal symmetry (space group I4₁/a) with two distinct magnetic Ir sites in the unit cell forming staggered IrO₆ rotation. Upon Rh doping, the magnetic order is suppressed and the magnetic moment of Ir⁴⁺ is reduced from 0.21μ_B/Ir for x=0 to 0.18μ_B/Ir for x=0.12. The magnetic structure …

International Doctoral Students, Their Advising Relationships And Adaptation Experiences: A Qualitative Study, Katherine Najjar

Department of Educational Administration: Dissertations, Theses, and Student Research

Thirty four international doctoral students were interviewed to determine what types of advising and mentoring experiences were effective and beneficial, and what experiences had been difficult or unhelpful. The students reported a high level of satisfaction with their advisors and with their program of studies. However, during the interviews, students began to describe other factors that contributed to their well-being and their experiences.

Issues described included language difficulties and problems developing relationships with other students. Although most students developed close, personal relationships with advisors or departmental colleagues, few students reported having large numbers of friends and associates outside of their …

Administration Of Panobinostat Is Associated With Increased Il-17a Mrna In The Intestinal Epithelium Of Hiv-1 Patients, Ane Bjerg Christensen, Anders Dige, Johan Vad-Nielsen, Christel R. Brinkmann, Mia Bendix, Lars Østergaard, Martin Tolstrup, Ole S. Søgaard, Thomas A. Rasmussen, Jens Randel Nyengaard, Jørgen Agnholt, Paul W. Denton

Biology Faculty Publications

Intestinal CD4+ T cell depletion is rapid and profound during early HIV-1 infection.This leads to a compromised mucosal barrier that prompts chronic systemic inflammation.The preferential loss of intestinal T helper 17 (Th17) cells in HIV-1 disease is a driver of the damage within the mucosal barrier and of disease progression.Thus, understanding the effects of new therapeutic strategies in the intestines has high priority. Histone deacetylase (HDAC) inhibitors (e.g., panobinostat) are actively under investigation as potential latency reversing agents in HIV eradication studies. These drugs have broad effects that go beyond reactivating virus, including modulation of immune pathways. We examined colonic …