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University of Nevada, Las Vegas

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Articles 1 - 30 of 48

Full-Text Articles in Science and Technology Studies

Becoming "Smart" About Relationship Building: Foster Care Youth And The Use Of Technology, Ramona Denby Brinson, Efren Gomez, Keith A. Alford Jul 2015

Becoming "Smart" About Relationship Building: Foster Care Youth And The Use Of Technology, Ramona Denby Brinson, Efren Gomez, Keith A. Alford

Publications

Key Findings:

Youth participants reported satisfaction with services and positive feelings about the smartphone.

The youth participants felt that the smartphone gave them a “voice” and control over the people with whom they wanted to talk.

Certain phone restrictions developed by project leadership were unenforceable.

Youth had certain expectations about the phone and its use but when the phone did not work or was “locked” (e.g., for data overuse) it created friction between the youth and their service provider.

Service-providers report that the phones help to create a sense of normalcy for the youth. Youth “were able to be ...


Power America's — And Nevada's — Advanced Industries: State By State, Region By Region, Mark Muro Oct 2014

Power America's — And Nevada's — Advanced Industries: State By State, Region By Region, Mark Muro

Lectures/Events (BMW)

With the U.S. economy still flat, economic experts and leaders continue to search for the next source of U.S. and regional growth. One key component of the next era of prosperity can be projected: It is what the Brookings Metropolitan Policy Program calls the advanced industry (AI) sector. The nation’s most strategic R&D — and STEM worker intensive industries, AIs like aerospace and IT are prime movers of regional and national prosperity, because they are key sources of technology innovation and generate domestic and international exports. Accordingly, the AI swatch of 50 discrete industries has emerged as ...


Plastic Deformation Of Steel Plates Under High Impact Loading, Brendan O'Toole Mar 2014

Plastic Deformation Of Steel Plates Under High Impact Loading, Brendan O'Toole

NSTec UNLV Symposium

  • UNLV Two-stage Light Gas Gun
  • Experimental Measurements
  • Physical Results of Impact on Target Plates
  • Research Objectives
  • Computational Analysis Methods
  • Material Models used in Computational Analysis
  • Simulation Comparison: Crater and Deformation
  • Simulation Comparison: Free Surface Velocity
  • High Speed Video of Experiments
  • Microscopy of Failure Surface: Is Phase Change an Issue?
  • Electron Back Scatter Diffraction (EBSD) of Failure Surfaces
  • On-going Plans and Future Work


Explore The Six Fundamentals Unlv Accelerated: High-Energy X-Ray Applications (Hexa), Oliver A. Hemmers Mar 2014

Explore The Six Fundamentals Unlv Accelerated: High-Energy X-Ray Applications (Hexa), Oliver A. Hemmers

NSTec UNLV Symposium

  • UNLV and HEXA for a Brighter Southern Nevada Future
  • History of HEXA’s Public-­‐Private Partnership
  • Discovery Through Research and Innova4ve Technologies
  • The Innova4ve Process
  • Southern Nevada Research and Economic Development Applica4ons
  • HEXA Program Benefits


Does Access To Information Technology Make People Happier? Insights From Well-Being Surveys From Around The World, Carol Graham, Milena Nikolova Feb 2014

Does Access To Information Technology Make People Happier? Insights From Well-Being Surveys From Around The World, Carol Graham, Milena Nikolova

Lectures/Events (BMW)

This lecture summarizes new research on the relationship between access to cell phones, TV, and the internet and subjective well-being worldwide. Technology access is positive for well-being in general, but with diminishing marginal returns for those who already have much access. It is also associated with increased stress and anger among cohorts for whom access to the technologies is new. The increased financial inclusion in very poor countries that comes with cell phones and mobile banking also has effects on well-being. Well-being levels are higher in the countries with higher levels of access to mobile banking, but so are stress ...


Game Change: What Have We Learned? Pt. 2, Robert E. Lang, Sonya D. Horsford, Marya L. Shegog, Ramona Denby-Brinson, Fatma Nasoz May 2013

Game Change: What Have We Learned? Pt. 2, Robert E. Lang, Sonya D. Horsford, Marya L. Shegog, Ramona Denby-Brinson, Fatma Nasoz

Lectures/Events (BMW)

Share Knowledge. Change Lives. Transform our Community.

Our Mission: The Lincy Institute at UNLV conducts and supports research that focuses on improving Nevada's health, education, and social services.

Our Research Areas: Education, Health, Social Services, Information Technology


Apps And Apple Devices: Productive Icloud Uses, Cyrus Ford Zarganj Oct 2012

Apps And Apple Devices: Productive Icloud Uses, Cyrus Ford Zarganj

Library Faculty Presentations

This program introduces useful apps for librarians who have two or more Apple devices such as an iPhone, iPad, or MacBook. You can learn how to use the iCloud, sync devices together, and about other useful apps for librarians to work on their projects from different places with different Apple devices without carrying files.


The Unlv Xps Facility – Research Opportunities, Allen L. Johnson Feb 2012

The Unlv Xps Facility – Research Opportunities, Allen L. Johnson

NSTec UNLV Symposium

XPS Outline

•XPS – what is it?

•How is it done?

•What are its limitations?

•Future direction – radioactive samples

–Sample containment and transport
–Sputter controls
–Radiation limits

•Summary


Visualization Facility At Unlv Gis And Remote Core Lab, Haroon Stephen Feb 2012

Visualization Facility At Unlv Gis And Remote Core Lab, Haroon Stephen

NSTec UNLV Symposium

Outline

  • About GIS/RS Lab
  • Visualization Facility
  • Research Areas
  • Summary


Establishing A Center Of Excellence For Security Science And Engineering, Ke-Xun Sun Feb 2012

Establishing A Center Of Excellence For Security Science And Engineering, Ke-Xun Sun

NSTec UNLV Symposium

Outline

• Introduction
• Progress report
• NNSA proposal to establishCenter of Excellence for Security Science and Engineering
• Perspective on UNLV-NSTec collaboration


Development Of Ion Beam Nuclear Transmutation Doping (Ibntd) For Novel Electronics In Extreme Conditions, Michael G. Pravica, Noel A. Guardala, Jack L. Price Feb 2012

Development Of Ion Beam Nuclear Transmutation Doping (Ibntd) For Novel Electronics In Extreme Conditions, Michael G. Pravica, Noel A. Guardala, Jack L. Price

NSTec UNLV Symposium

Development of IBNTD for electronics under extreme conditions.

•We hope to create novel wide bandgap devices using Ion Beam Nuclear Transmutation Doping (IBNTD). These devices may be used as rugged high power switches, and high current/low noise amplifiers. Diamond in itself represents a “Holy Grail” for electrical applications due to its very high thermal conductivity and excellent electrical characteristics.
•We also hope to develop devices that can convert the enormous energy from high-energy nuclear particles (α2+,β-,β+, γparticles) into useful electricity and thus harness the enormous energy still contained in “spent” nuclear fuel. Developing these direct energy conversion ...


Mission Perspective: Non-Proliferation, Emergency Response, And Other Missions Supported By Sdrd, Paul Guss Feb 2012

Mission Perspective: Non-Proliferation, Emergency Response, And Other Missions Supported By Sdrd, Paul Guss

NSTec UNLV Symposium

The NNSS provides scientific data and technical solutions to fulfill national security needs

Our mission has evolved from past history and now includes...

  • Stockpile Stewardship
  • Non-proliferation & Emergency Response
  • Homeland Security
  • Defense Applications
  • Special Technologies


Radiography And Image Processing, Stephen E. Mitchell Feb 2012

Radiography And Image Processing, Stephen E. Mitchell

NSTec UNLV Symposium

Outline

• Introduction
• What? Why? Etc.
• Pulsed Power
• Diode Physics
• Radiography ABC’s
• Challenges


Matter Under Unusual Conditions, Bernard Zygelman Feb 2012

Matter Under Unusual Conditions, Bernard Zygelman

NSTec UNLV Symposium

What is curiosity – driven research and why do we support it?

Vannevar Bush Science The Endless Frontier (1945)

“Science is the pacemaker of technological progress … New productsand new processes do not appear full-grown. They are founded on newprinciples and new conceptions, which in turn are painstakingly developedby research in the purest realms of science“

•Magnetic Resonance Imaging
•Positron Emission Tomography
•Laser applications
•GPS
•Nano Technology


National Center For Nuclear Security, Veraun Chipman, Amanda Klingensmith, Cathy Snelson Feb 2012

National Center For Nuclear Security, Veraun Chipman, Amanda Klingensmith, Cathy Snelson

NSTec UNLV Symposium

National Center for Nuclear Security (NCNS) Mission

•Chartered mission is to enhance the Nation’s verification and detection capabilities in support of nuclear arms control and nonproliferation through R&D activities at the NNSS
•Three focus areas
–Treaty Verification Technologies
–Nonproliferation Technologies
–Technical Nuclear Forensics


Overview Of Nstec Plasma Focus Tubes And Magnetohydrodynamic Modeling Capabilities, Tim Meehan Feb 2012

Overview Of Nstec Plasma Focus Tubes And Magnetohydrodynamic Modeling Capabilities, Tim Meehan

NSTec UNLV Symposium

•Brief Description of how DPFs work, in general what they are useful for.
•DPF devices that we have at NSTec
•Using MHD modeling software to optimize designs and predict performance
•Neutron Resonance Spectroscopy


Development Of Smart Pv Inverters For The Smart Grid, Yahia Baghzouz Feb 2012

Development Of Smart Pv Inverters For The Smart Grid, Yahia Baghzouz

NSTec UNLV Symposium

The Electric Grid has become more complex with recent technological developments. There are more alternative power sources and sensors added into the mix at every part of the grid. The Energy Meter has changed over the past several years as well. The older meters were checked only once a month with a meter reader, but the new "Smart" Meters are capable of reporting energy usage at fifteen minute intervals.


Unlv Center For Materials And Structures: Structural Response Due To Blast Loadingand Dynamic Material Characterization, Brendan O'Toole, Mohamed Trabia, Jagadeep Thota Feb 2012

Unlv Center For Materials And Structures: Structural Response Due To Blast Loadingand Dynamic Material Characterization, Brendan O'Toole, Mohamed Trabia, Jagadeep Thota

NSTec UNLV Symposium

Presentation Outline

  • Objectives of our Explosives Related Research
  • Computational Analysis Approach
  • Blast Project Summaries
  • Dynamic Material Characterization
  • Potential Collaborative Projects

  • Pmts And Radiation/Particle Detection Technologies, Brent Davis Feb 2012

    Pmts And Radiation/Particle Detection Technologies, Brent Davis

    NSTec UNLV Symposium

    Describes technical standards for equipment in the field of Nuclear and Optical Physics.


    2011 Research Highlights, Yusheng Zhao Feb 2012

    2011 Research Highlights, Yusheng Zhao

    NSTec UNLV Symposium

    Overview

    •Center Mission and Cluster Tasks
    •Recent Scientific Achievements
    •Current & Future Developments


    Unlv Em-Dot Research, Highlights Of Improvised Electric Detonator (Wire Melt) Research, And Comments On Basic Research With Unlv Non-Equilibrium Plasma Pinch, Robert A. Schill Jr. Feb 2012

    Unlv Em-Dot Research, Highlights Of Improvised Electric Detonator (Wire Melt) Research, And Comments On Basic Research With Unlv Non-Equilibrium Plasma Pinch, Robert A. Schill Jr.

    NSTec UNLV Symposium

    UNLV EM DOT

    •Patented
    –Patent Number: 7,482,814 [1/27/2009]
    •Novel Differential Dot
    –Wide bandwidth & Matched
    –Symmetric, shielded sensor
    –Measures the E and B fields at a single point in space simultaneously
    •Transient Calibration Technique Developed –Excellent Agreement
    –Low inductance test stand –relatively uniform B-field
    –Low capacitance test stand –relatively uniform E-field
    –Test stand is the limiting factor at this time


    Event Flyer, University Of Nevada, Las Vegas Feb 2012

    Event Flyer, University Of Nevada, Las Vegas

    NSTec UNLV Symposium

    Featuring 18 scientists and engineers from UNLV and NSTec describing their work as it relates to national security requirements for the United States.

    Join us for a quick-paced forum to help determine collaborations suitable for advancing engineering and scientific research at NSTec and UNLV.


    The Economics Of Cybersecurity: A National Dilemma, Allan A. Friedman Jan 2012

    The Economics Of Cybersecurity: A National Dilemma, Allan A. Friedman

    Lectures/Events (BMW)

    Cybersecurity has dominated recent headlines, but policy makers and pundits alike still combine different risks, threats, and solutions. Crime, espionage, and international conflict represent different dangers to our society at the local and national level, and each has a set of bad actors with different incentives. Conflating these areas can lead to poorly framed solutions. Exploring the economics of cybersecurity offers a set of tools to understand these incentives, and the sometimes complex policy challenges that arise in dealing with digital risk.


    Development Of A Simulation Tool For Analysis Of Freeway Crashes Due To Cell Phone Usage, Sourabh Sriom Dec 2011

    Development Of A Simulation Tool For Analysis Of Freeway Crashes Due To Cell Phone Usage, Sourabh Sriom

    UNLV Theses, Dissertations, Professional Papers, and Capstones

    Research shows that drivers are susceptible to numerous distractions while driving which can be held responsible as the reason of a crash. Usage of cell phones, i.e. talking or texting while driving is considered one of the prominent distractions which causes a crash. This dissertation aims to study the number of crashes occurring on the freeways and their relation with the drivers of these cars using cell phones while they are driving. Since crashes occur relatively less frequently, the study of crashes is done using what is called the "rare event" theory. Java based simulations are done to model ...


    Do Libraries Still Need Book Vendors And Subscription Agents?, Stephen Bosch, Christopher Sugnet, J. Cory Tucker, Lauren Corbett Oct 2011

    Do Libraries Still Need Book Vendors And Subscription Agents?, Stephen Bosch, Christopher Sugnet, J. Cory Tucker, Lauren Corbett

    Library Faculty Publications

    Digital content blurs the lines of traditional library acquisition workflows and organization. For example: link resolvers and the loading of order confirmation record files may be handled by systems staff in one organization and by technical services staff in another. Lines are being crossed between acquisitions and interlibrary loan functions, notably with electronic versions of theses and dissertations. Regardless of this blurring of lines, library staff use vendors still in acquiring content for the library collection. The reasons for using vendors have stood for decades, but are changes in the information industry having an impact? In the current environment, what ...


    Best Instructional Practices For Distance Education: A Meta-Analysis, Robin Michael Roberts Aug 2011

    Best Instructional Practices For Distance Education: A Meta-Analysis, Robin Michael Roberts

    UNLV Theses, Dissertations, Professional Papers, and Capstones

    Recent meta-analyses on the efficacy of distance education have concluded that no significant difference exists between face-to-face and distance education. At the same time, these meta-analyses noted that considerable heterogeneity existed between the individual studies used in the meta-analyses. Investigation of moderators responsible for that heterogeneity suggested that four things other than media delivery were primarily responsible for the majority of variation between study outcomes: methodological quality, instructor involvement, type of interaction, instructional methods and time-on-task. A comparative meta-analysis was performed to further investigate these moderators. Methodological quality, maturational differences in students and any undetermined media effects were controlled for ...


    Evaluating And Implementing Web Scale Discovery Services: Part Two, Jason Vaughan, Tamera Hanken Jul 2011

    Evaluating And Implementing Web Scale Discovery Services: Part Two, Jason Vaughan, Tamera Hanken

    Library Faculty Presentations

    Part Four: Quick Tour of the Current Marketplace:

    • "The Big 5"
    • Similarities and differences

    Part Five: It's Not All Sliced Bread:

    • Shortcomings of web scale discovery

    Part Six: Implementation (pre launch steps):

    • Selecting and preparing implementation staff
    • Preparing and communicating process/decisions with all staff
    • Working with the vendor (roles, expectations, timeline)
    • Workflow changes and implications (technical services)

    Part Seven: Specific implementation tasks, issues, and considerations:

    • Record loading and mapping (catalog content)
    • Harvesting and mapping digital/local content
    • Working with central index data (internal & external content)
    • Web integration and customization
    • Assessment and continuous improvement


    Evaluating And Implementing Web Scale Discovery Services: Part One, Jason Vaughan, Tamera Hanken Jul 2011

    Evaluating And Implementing Web Scale Discovery Services: Part One, Jason Vaughan, Tamera Hanken

    Library Faculty Presentations

    Preface: Before Web Scale Discovery

    • A very brief overview

    Part 1: What is Web Scale Discovery

    • Content
    • Technology

    Part 2: Why is Web Scale Discovery important?

    • What’s the need?
    • How is it different from earlier attempts at broad discovery?

    Part 3: A Framework for Evaluating Web Scale Discovery Services

    • What we did at UNLV
    • Other options




    Management And Support Of Shared Integrated Library Systems, Jason Vaughan, Kristen Costello Jun 2011

    Management And Support Of Shared Integrated Library Systems, Jason Vaughan, Kristen Costello

    Library Faculty Publications

    The University of Nevada, Las Vegas (UNLV) University Libraries has hosted and managed a shared integrated library system (ILS) since 1989. The system and the number of partner libraries sharing the system has grown significantly over the past two decades. Spurred by the level of involvement and support contributed by the host institution, the authors administered a comprehensive survey to current Innovative Interfaces libraries. Research findings are combined with a description of UNLV’s local practices to provide substantial insights into shared funding, support, and management activities associated with shared systems.


    Cyberbullying In Schools: A Research Study On School Policies And Procedures, Brian Wiseman May 2011

    Cyberbullying In Schools: A Research Study On School Policies And Procedures, Brian Wiseman

    UNLV Theses, Dissertations, Professional Papers, and Capstones

    A mixed-methods research design first using quantitative then qualitative data was used in order to explore what cyberbullying policies are being employed by principals in the state of Nevada. Electronic surveys were given to all 118 middle school principals in Nevada. Middle school was chosen because it is the age where cyberbullying behaviors are most prevalent. Out of the 118 surveys that were deployed, 66 principals responded. A series of independent t-tests and a chi-squared analysis was conducted using the survey data. The survey concluded by asking principals if they were willing to participate in a one-on-one interview regarding the ...