Digital Commons Network^™

Rayleigh-Taylor Turbulent Mixing Simulations, Tulin Kaman

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

We study the Rayleigh-Taylor mixing layer, presenting on simulations in agreement with experimental data. This problem is an idealized subproblem of important scientific and engineering problems, for example the gravitationally induced mixing in oceanography and performance assessment for inertial confinement fusion. Engineering codes commonly achieve correct simulations through the calibration of adjustable parameters. In this sense, they are interpolative and not predictive. As computational science moves from the interpolative to the predictive and reduces the reliance on experiment the quality of decision making improves. The diagnosis of errors in a multiparameter, multiphysics setting is daunting, so we address this issue …

The Political Economy: Political Determinants Of The Macroeconomy, Ellen Key

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Although political scientists have devoted thousands of pages to the role economic conditions play in political evaluations, less attention has been devoted to the role politics plays in explaining changes in economic behavior and the macroeconomy. Similarly, economists have spent decades studying the factors that lead to changes in macroeconomic conditions but have ignored most political variables. Linking the two literatures, I argue that in order to fully understand the economy one needs to incorporate politics--specifically presidential approval--and the media in addition to variables typically employed in macroeconomic models. This dissertation addresses three overlapping research questions. I first introduce a …

A Search For Charm And Beauty In A Very Strange World, Jason Kamin

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

The Relativistic Heavy Ion Collider (RHIC) was built to produce and study the extremely hot and dense phase of matter called Quark Gluon Plasma (QGP) in which the degrees of freedom are individual partons rather than composite hadrons. Since 2000, RHIC has collided various species of particles in order to disentangle and isolate the properties of the strongly interacting QGP: p+p to set a baseline, d+Au to establish a control experiment, Au+Au to definitively create the QGP, and Cu+Cu to bridge the gap between d+Au and Au+Au. Electron-positron pairs are a particularly effective probe of the QGP because they carry …

Multidimensional Simulations Of Type Ia Supernovae And Classical Novae, Brendan Kurt Krueger

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Explosive astrophysical phenomena have historically played a significant role in understanding the universe and our place within it. Stellar explosions are important distance indicators, allowing exploration of the structure and evolution of the universe. They also form and disperse heavy elements that are recycled into new astrophysical objects. Stellar explosions are not a uniform group; the progenitors and mechanisms of stellar explosions vary tremendously. I used multidimensional simulations to study two distinct types of explosions that are believed to result from similar progenitor systems: compact white dwarf stars that accrete matter from stellar companions. The two types of explosions I …

Tyme, Rime, Minde & Kinde: The Reverberation Of Time In Composition, Cognition & Kynde In The Book Of The Duchess, Kassim Mirza

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

In Europe during the fourteenth century the perception of time was revolutionized by the invention of the mechanical clock. The device rendered the old qualitative, self referential perception of time obsolete and replaced it with a means of time reckoning abstracted from human experience. In this thesis I will analyze the influence of the emergence of the mechanical clock on Geoffrey Chaucer's earliest know work: The Book of the Duchess. I utilize close reading and numerology to interpret the relationship between the forest and the humans of the Dreamscape. Ultimately, I argue that Chaucer allocates the old qualitative perception of …

Characterization Of Benthic Communities, Gregory A. Piniak, Shay Viehman, Christine M. Addison, Nicole D. Fogarty

Marine & Environmental Sciences Faculty Reports

No abstract provided.

Catalog, 2012-2013, Roger Williams University

Catalogs

No abstract provided.

Long-Range Ordered Carbon Clusters: A Crystalline Material With Amorphous Building Blocks, Lin Wang, Bingbing Liu, Hui Li, Wenge Yang, Yang Ding, Stanislav V. Sinogeikin, Yue Meng, Zhenxian Liu, Xiao Cheng Zeng, Wendy L. Mao

Xiao Cheng Zeng Publications

Solid-state materials can be categorized by their structures into crystalline (having periodic translation symmetry), amorphous (no periodic and orientational symmetry), and quasi-crystalline (having orientational but not periodic translation symmetry) phases. Hybridization of crystalline and amorphous structures at the atomic level has not been experimentally observed. We report the discovery of a long-range ordered material constructed from units of amorphous carbon clusters that was synthesized by compressing solvated fullerenes. Using x-ray diffraction, Raman spectroscopy, and quantum molecular dynamics simulation, we observed that, although carbon-60 cages were crushed and became amorphous, the solvent molecules remained intact, playing a crucial role in maintaining …

Load Sensor In An Elastomer Suspension Element, Jazmin Ley

Theses and Dissertations - UTB/UTPA

Knowledge of the loading applied to railcar suspension elements is necessary for improved rail safety, efficiency, and for monitoring bearing health. An economical, reliable system for keeping track of both dynamic and static loads on a rail car bearing offers potential for many improvements in rail service. The difficulties of implementing such a system are considerable because the sensor must be in the bearing load path and is thus subject to all the stressors of that environment including high impact, high load, high temperature, and corrosion. This thesis describes an attempt to incorporate a load measurement system in a polyurethane …

The Influence Of Prognostic Factors And Adjuvant Chemoradiation On Survival After Pancreaticoduodenectomy For Ampullary Carcinoma., Timothy N Showalter, Tingting Zhan, P Rani Anne, Inna Chervoneva, Edith P Mitchell, Charles J Yeo, Ernest L Rosato, Eugene P Kennedy, Adam C Berger

Department of Surgery Faculty Papers

INTRODUCTION: The prognosis after pancreaticoduodenectomy (PD) for ampullary carcinoma (AC) is superior to that of pancreatic cancer. Decisions regarding adjuvant therapy are influenced by factors such as nodal status, stage, and grade, but the influence of these individual variables on survival is unclear.

METHODS: A prospective tumor registry database was queried to identify patients who underwent PD for AC at Thomas Jefferson University between Jan 1997 and Apr 2009. The study was conducted with the approval of the institutional review board. Data were collected through review of hospital and departmental charts. Overall survival (OS) was analyzed using univariate and multivariate …

Fall 2012 E-Certi Newsletter, Center For Educational Research And Teaching Innovation

CAFE Faculty Newsletters

Hello S&T instructors: The fall semester is here and with it a time of saying farewell to Vice Provost Harvest Collier. Read a tribute to him here. Also, read about how Hank Pernicka teaches rocket science and consistently garners teaching awards, plus, find out little known facts about S&T’s Woman of the Year and details of this year’s Curators’ Teaching Summit. Welcome back!

Effects Of Landing Strategy Intervention On Muscle Activation During Drop Landings, Corrie Bailey

Health, Human Performance and Recreation Undergraduate Honors Theses

The purpose of this study was to examine the kinematic, kinetics, and timing of muscle activation of the hamstring and gluteal muscle groups during drop jump landings after five minutes of visual and verbal landing strategy intervention. Thirty-six university students (23.47+/- 2.77 years; 171.99 =?- 8.01 cm; 71.72 =/- 13.56 kg) volunteered to participate. A 5-minute verbal and visual feedback intervention was implemented after participants performed five drop jumps. After the 5-minute intervention, five more drop jumps were performed. The results revealed significant differences in hip and knee flexion, knee valgus, and ground reaction forces pre and post intervention [p<0.05]. In addition, muscle-firing patterns revealed the hamstrings and gluteal muscle groups achieving 20% MVIC prior to the quadriceps muscle group post intervention. The current findings revealed that a 5-minute verbal and visual intervention can elicit greater hip and knee flexion, decrease ground reaction force, and increase the activation of the hamstrings while decreasing the activation of the quadriceps, thereby lessening the likelihood of an ACL injury.

Meaningful Use And Meaningful Curricula: A Survey Of Health Informatics Programs In The U.S., Kai Koong, Madison Ngafeeson, Lai Lui

Journal Articles

The introduction of the US government’s Meaningful Use criteria carries with it many implications including the training curriculum of healthcare personnel. This study examines 108 health informatics degree programmes across the USA. First, the courses offered are identified and classified into generic classes. Next, these generic groupings are mapped to two important frameworks: the Learning to Manage Health Information (LMHI) academic framework; and the Meaningful Use criteria policy framework. Results suggest that while current curricula seemed acceptable in addressing Meaningful Use Stage 1 objective, there was insufficient evidence that these curricula could support Meaningful Use Stage 2 and …

Auto-Fluorescence Lifetime And Light Reflectance Spectroscopy For Breast Cancer Diagnosis: Potential Tools For Intraoperative Margin Detection, Vikrant Sharma, Shivaranjani Shivalingaiah, Yan Peng, David Euhus, Zygmunt Gryczynski, Hanli Liu

Bioengineering Faculty Publications - Archive

This study investigates the use of two spectroscopic techniques, auto-fluorescence lifetime measurement (AFLM) and light reflectance spectroscopy (LRS), for detecting invasive ductal carcinoma (IDC) in human ex vivo breast specimens. AFLM used excitation at 447 nm with multiple emission wavelengths (532, 562, 632, and 644 nm), at which autofluorescence lifetimes and their weight factors were analyzed using a double exponent model. LRS measured reflectance spectra in the range of 500-840 nm and analyzed the spectral slopes empirically at several distinct spectral regions. Our preliminary results based on 93 measured locations (i.e., 34 IDC, 31 benign fibrous, 28 adipose) from 6 …

Planning For Crime: Crime Prevention Through Environmental Design In Bishop Arts District Neighborhood, Oak Cliff, Dallas., Sharmila Gurung, Ardeshir Anjomani

Planning Masters Professional Reports - Archive

There is a lack of emphasis in the planning world, both academically and in the field, on preventing crime. Defensible Space and Crime Prevention through Environmental Design (CPTED) has been the two main approaches taken by planners and criminal justice officials that is design-based and that has brought some level of collaboration between the two professions. This study analyzes the built environment of select crime hotspots in the Bishop Arts District Neighborhood from a design-based crime prevention perspective in order to draw correlations between high crime areas and elements of design-based theories. Using GIS software, crime map is plotted to …

Simulation Can Help Make The Invisible Visible, Eileen Smith

UCF Forum

Learning should not be a matter of stuffing a person’s head full of facts, but rather a process of lighting a fire in people so they have the confidence to successfully learn and become motivated to take charge of their educational journey.

Reassessing Damage Remedy To Online Copyright Infringement, Yang Sun

Maurer Theses and Dissertations

No abstract provided.

Binding The Executive (By Law Or By Politics), Aziz Huq

Public Law and Legal Theory Working Papers

No abstract provided.

Volunteer Income Tax Assistance Programs And Taxpayer Actions To Improve Personal Finances, Erica Bobbitt, Cathy F. Bowen, Robin I. Kuleck, Ronald Taverno

Journal of Extension

The income tax-filing process creates teachable moments for learning about taxes and other financial matters. Educators and volunteers from Penn State Cooperative Extension helped taxpayers file 2008 returns under Volunteer Income Tax Assistance Program (VITA). Nearly 600 filers (588) completed and simultaneously received educational information about managing personal finances. This article describes the actions taxpayers took to improve their financial stability. Nearly half (48.8%) of the filers believed their understanding of taxes had increased a lot since having their taxes prepared by Penn State Cooperative Extension. Implications for Extension educators and program benefits for taxpayers and volunteers are suggested.

Demographic Data For Effective Programming: An Update On Sources And Successful Practice, Katherine J. Curtis, Daniel Veroff, Bill Rizzo, James Beaudoin

Journal of Extension

This article details recent changes in demographic data released by the US Census Bureau and the implications for use among Extension educators. We discuss updates to demographic data products and the keys for their successful use. Focus is on the American Community Survey (ACS). Users must adopt new practices to effectively use the ACS, which now provides the most current and reliable demographic data for communities in the United States.

Increasing Your Productivity With Web-Based Surveys, Mary Wissman, Brittney Stone, Ellen Schuster

Journal of Extension

Web-based survey tools such as Survey Monkey can be used in many ways to increase the efficiency and effectiveness of Extension professionals. This article describes how Survey Monkey has been used at the state and county levels to collect community and internal staff information for the purposes of program planning, administration, evaluation and planning effective training.

Profiles Of Asian American Subgroups In Massachusetts: Vietnamese Americans In Massachusetts, Shauna Lo, Thao Tran

Institute for Asian American Studies Publications

Vietnamese Americans are the third largest Asian American subgroup in Massachusetts. In the 2010 decennial census, the Vietnamese American population in the state numbered 47,636, an increase of nearly 30% since 2000.

The largest concentration of Vietnamese Americans is in the city of Boston, while Worcester also has a significant population. There are also sizable communities of Vietnamese Americans just to the north and south of Boston—to the north in Malden, Everett, Medford, Revere, Chelsea, and Lynn, and to the south in Quincy, Randolph, and Braintree.

The greatest area of growth of Vietnamese Americans in the state is to the …

Neurosurgical Applications Of Magnetic Resonance Diffusion Tensor Imaging, Daniel D. Hirsch, Bs, Benjamin M. Zussman, Bs, Adam E. Flanders, Md, Ashwini D. Sharan, Md

JHN Journal

Magnetic Resonance (MR) Diffusion Tensor Imaging (DTI) is a rapidly evolving technology that enables the visualization of neural fiber bundles, or white matter (WM) tracts. There are numerous neurosurgical applications for MR DTI including: (1) Tumor grading and staging; (2) Pre-surgical planning (determination of resectability, determination of surgical approach, identification of WM tracts at risk); (3) Intraoperative navigation (tumor resection that spares WM damage, epilepsy resection that spares WM damage, accurate location of deep brain stimulation structures); (4) Post-operative assessment and monitoring (identification of WM damage, identification of tumor recurrence). Limitations of MR DTI include difficulty tracking small and crossing …

Mitochondrial Fission Induces Glycolytic Reprogramming In Cancer-Associated Myofibroblasts, Driving Stromal Lactate Production, And Early Tumor Growth., Carmela Guido, Diana Whitaker-Menezes, Zhao Lin, Richard G Pestell, Anthony Howell, Teresa A Zimmers, Mathew C Casimiro, Saveria Aquila, Sebastiano Ando', Ubaldo E Martinez-Outschoorn, Federica Sotgia, Michael P Lisanti

Department of Stem Cell Biology and Regenerative Medicine Faculty Papers & Presentations

Recent studies have suggested that cancer cells behave as metabolic parasites, by inducing oxidative stress in adjacent normal fibroblasts. More specifically, oncogenic mutations in cancer cells lead to ROS production and the "secretion" of hydrogen peroxide species. Oxidative stress in stromal fibroblasts then induces their metabolic conversion into cancer-associated fibroblasts. Such oxidative stress drives the onset of autophagy, mitophagy, and aerobic glycolysis in fibroblasts, resulting in the local production of high-energy mitochondrial fuels (such as L-lactate, ketone bodies, and glutamine). These recycled nutrients are then transferred to cancer cells, where they are efficiently burned via oxidative mitochondrial metabolism (OXPHOS). We …

Sci-Tech Book News Reviews, Susan Fingerman

Sci-Tech News

No abstract provided.

Full Issue: Vol. 66, No. 3

Sci-Tech News

No abstract provided.

Elementary School Experience With Comprehension Testing May Influence Metacomprehension Accuracy Among Seventh And Eighth Graders, Keith W. Thiede, Joshua S. Redford, Jennifer Wiley, Thomas D. Griffin

Curriculum, Instruction, and Foundational Studies Faculty Publications and Presentations

We explored whether exposure to different kinds of comprehension tests during elementary years influenced metacomprehension accuracy among 7^th and 8^th graders. This research was conducted in a kindergarten through eighth grade charter school with an expeditionary learning curriculum. In literacy instruction, teachers emphasize reading for meaning and inference building, and they regularly assess deep comprehension with summarization, discussion, dialogic reasoning and prediction activities throughout the elementary years. The school recently expanded, doubling enrollments in 7^th and 8^th grades. Thus, approximately half of the students had long-term exposure to the curriculum and the other half did not. …

Efficiency Estimates And Rankings Employing Data Envelopment And Stochastic Frontier Analyses: Evaluating The Management Of U.S. Public Colleges, G. Thomas Sav

Economics Faculty Publications

This paper estimates and compares operating efficiencies of publicly owned associate degree granting colleges in the United States using data envelopment analysis (DEA) and stochastic frontier analysis (SFA). Comparisons are based on panel data for 698 colleges over four academic years, 2005-09. Included are both constant and variable returns to scale DEA estimates along with half and truncated normal inefficiency SFA estimates. The values 0.56 vs. 0.45 represent the largest mean DEA-SFA efficiency differential. DEA results indicate that 13% of colleges are fully (100%) efficient while SFA puts that percentage at only 1.7%. Comparisons of rankings based on efficiency performance …

Principles And Best Practices, Timothy L. Sellnow

Communication Presentations

No abstract provided.

The Daily Gamecock, Wednesday, August 1, 2012, University Of South Carolina, Office Of Student Media

August

No abstract provided.