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2011

University of Nevada, Las Vegas

Physical Sciences and Mathematics

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Articles 1 - 30 of 61

Full-Text Articles in Social and Behavioral Sciences

Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering October 1, 2011 To December 31, 2011, Margaret N. Rees Dec 2011

Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering October 1, 2011 To December 31, 2011, Margaret N. Rees

Get Outdoors Nevada

  • The number of records in the volunteer database decreased by 20.7% over the last quarter. The database now contains 7,072 records.
  • Results show an average of 1,080 visits per month, and with an average of 2,328 pages viewed per month.
  • Get Outdoors Nevada supported 22 volunteer events in a variety of ways. These events utilized 867 volunteers whom contributed approximately 3,774.5 hours of service.
  • Two community outreach events were attended, resulting in 476 direct contacts with 50 names added to the database.
  • The 7th Annual Volunteer Recognition Banquet was held on 11/5/11 with 156 volunteers in attendance.


Take Pride In America In Southern Nevada: Annual Progress Report, Period Covering January 1, 2011 - December 31, 2011, Margaret N. Rees Dec 2011

Take Pride In America In Southern Nevada: Annual Progress Report, Period Covering January 1, 2011 - December 31, 2011, Margaret N. Rees

Anti-littering Programs

  • A meeting of stakeholders across Nevada was held to explore the potential for statewide collaboration on litter and dumping issues.
  • Website activity for the first three quarters of the year averaged 1,122 hits per month, with an average of 1,927 pages viewed per month.
  • The team attended 12 community outreach events resulting in 2,154 direct contacts and 324 new mailing list records.
  • The Take Pride in America (TPIA) in Southern Nevada completed a total of 41 volunteer events contributing a total of 10,779 volunteer hours.
  • The TPIA team filed a no-cost extension to SNPLMA and received an extension until December …


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 a …


A Landscape Approach To Late Prehistoric Settlement And Subsistence Patterns In The Mojave Sink, Tiffany Ann Thomas Dec 2011

A Landscape Approach To Late Prehistoric Settlement And Subsistence Patterns In The Mojave Sink, Tiffany Ann Thomas

UNLV Theses, Dissertations, Professional Papers, and Capstones

The environment of the Late Prehistoric period (1200 A.D. to Historic Contact) Mojave Sink was wetter than modern conditions. The settlement and subsistence patterns of the occupants of the region during this period were driven by the availability of water, subsistence resources, raw material sources, and tradition. These people utilized the regional landscape based upon the seasonal availability of these resources. Supplemental agricultural production has been proposed for the Mojave River Delta due to the more favorable environmental conditions of this period. If agriculture was being practiced it would have affected the regional land-use patterns. For this thesis I propose …


Sustainability And Climate Models For The Intermountain West: An Annotated Bibliography, Marianne A. Buehler, William E. Brown Jr. Nov 2011

Sustainability And Climate Models For The Intermountain West: An Annotated Bibliography, Marianne A. Buehler, William E. Brown Jr.

Brookings Mountain West Publications

This resource on climate models and sustainability in the Intermountain West, a region that includes the states of Arizona, Colorado, Idaho, Nevada, New Mexico, and Utah, is a collaborative effort between the UNLV Libraries (http://library.unlv.edu/) and Brookings Mountain West (http://brookingsmtnwest.unlv.edu/).

The selected citations include academic, government, and non-profit information that highlight ongoing research on climate models and sustainability efforts in the region. The websites, government studies, independent reports, scholarly articles, and media reports reflect the diversity and complexity of climate change and sustainability issues in a region that contains widely varying ecosystems. The Intermountain West, with its deserts, basins, mountains, …


Take Pride In America Phase Iii: Quarterly Progress Report, Period Covering July 25, 2011-October 24, 2011, Margaret N. Rees Oct 2011

Take Pride In America Phase Iii: Quarterly Progress Report, Period Covering July 25, 2011-October 24, 2011, Margaret N. Rees

Anti-littering Programs

  • The GIS database was field tested.
  • Three youth groups began the Hector’s Helpers curriculum.
  • America Recycles Day event planning occurred.
  • Forms were developed for the volunteer monitoring program.


Effects Of Climate Change On Spring Ecosystem Hydroecology As A Guide To Developing Alternative Water Policies, Scott Mensing, Saxon E. Sharpe, Scott Bassett, Don Sada, Jim Thomas Oct 2011

Effects Of Climate Change On Spring Ecosystem Hydroecology As A Guide To Developing Alternative Water Policies, Scott Mensing, Saxon E. Sharpe, Scott Bassett, Don Sada, Jim Thomas

Climate Change Seminar Series (NNE)

Hydroecology: the interface of ecological systems and water which combines the scientific disciplines of hydrology and ecology

Goal: evaluate the hydrologic and climate history using pollen, loss on ignition, total inorganic carbon, and invertebrates from spring sediments in Spring Valley, Eastern Nevada and Snake Valley, Western Utah


Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Covering July 6, 2011-October 5, 2011, Margaret N. Rees Oct 2011

Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Covering July 6, 2011-October 5, 2011, Margaret N. Rees

Anti-littering Programs

  • A total of 6 clean-up events were conducted this quarter.
  • Interagency cooperation continued.
  • Recycling containers were distributed to agencies for use at public events.
  • Website redesign continued.


Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering July 1, 2011 To September 30, 2011, Margaret N. Rees Sep 2011

Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering July 1, 2011 To September 30, 2011, Margaret N. Rees

Get Outdoors Nevada

  • The number of records in the volunteer database increased 5% from last quarter. The database now contains 8,918 records.
  • Results show an average of 1,170 visits per month, and with an average of 2,681 pages viewed per month.
  • Six National Public Lands Day events have been completed.
  • The Interagency Volunteer Standard Operations Manual has been updated and made available to all other SNAP teams.
  • Get Outdoors Nevada supported 16 volunteer events in a variety of ways. These events utilized approximately 600 volunteers whom contributed approximately 2,500 hours of service.
  • Preparations for the 11/5/11 volunteer recognition banquet continued.


Undergraduate Research Opportunities Program 2011, Nicholle Booker, University Of Nevada, Las Vegas Aug 2011

Undergraduate Research Opportunities Program 2011, Nicholle Booker, University Of Nevada, Las Vegas

Undergraduate Research Opportunities Program (UROP)

Undergraduate Research Opportunities Program

On August 9, 2011 the UNLV College of Sciences will celebrate the accomplishments of undergraduate students participating in the Summer 2011 Undergraduate Research Opportunities Program (UROP) and the Research Experience For Undergraduates (REU) Program.

The public is invited to attend, beginning at 10:00 a.m.

Please join us to view student research posters. Student research topics include: biomedicine and human health, Nevada's fragile environment and ecosystems, climate change, stem cell research, microbiology, astrophysics, and many others.

Over 25 UNLV undergraduates and a cohort of 25 undergraduates selected from colleges and universities across the nation will mark the …


Youth Initiative Hector’S Helpers: Quarterly Progress Report, Period Covering April 16, 2011 – August 5, 2011, Hector's Helpers Aug 2011

Youth Initiative Hector’S Helpers: Quarterly Progress Report, Period Covering April 16, 2011 – August 5, 2011, Hector's Helpers

Anti-littering Programs

The Hector’s Helpers program was in full action this quarter. Students at Roy Martin Middle School completed their environmental stewardship project. Our team produced and distributed promotional flyers in order to increase Clark County School participation in Hector’s Helpers. In addition this quarter, the Hector’s Helpers team was showcased in a news segment aired by Las Vegas City Scene.


Assessing A Combined Theories Approach To Climate Change Communication, Ted Greenhalgh Aug 2011

Assessing A Combined Theories Approach To Climate Change Communication, Ted Greenhalgh

UNLV Theses, Dissertations, Professional Papers, and Capstones

This research examines the complexities of communicating climate change risk information and the underlying individual attitudes and message content that affect message reception. Using climate change messages incorporating fear appeals and normative information subject's reactions to the messages were evaluated using the Theory of Planned Behavior model. The study found that fear appeals did increase behavioral intention to adopt a lower carbon lifestyle among test group subjects. The Theory of Planned Behavior model showed that attitudes and self-efficacy were significant predictors of the behavioral intent to adopt a lower carbon lifestyle, while community norms were only marginally predictive. However, not …


Redefining Security In Sub-Saharan Africa, Winta Sintayehu Gebremariam Aug 2011

Redefining Security In Sub-Saharan Africa, Winta Sintayehu Gebremariam

UNLV Theses, Dissertations, Professional Papers, and Capstones

New and challenging threats to humans are currently on the rise. These threats to human well being have been neglected and ignored within the traditional conception of security. Security studies have mainly focused on traditional threats, mostly military and political. Although still important, this perspective lacks the ability to address nontraditional threats that are killing and injuring millions each year. Each year, millions die of diseases such as HIV/AIDS, tuberculosis, malaria, hunger, and water related diseases among others. Although these threats are widespread throughout the world, Sub-Saharan Africa bears the brunt of these threats. This thesis proposes an ecological approach …


The Effect Of Endpoint Knowledge On Dot Enumeration, Alex Michael Moore Aug 2011

The Effect Of Endpoint Knowledge On Dot Enumeration, Alex Michael Moore

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study attempts to extend the principle tenets of the Overlapping Waves Theory (Siegler, 1996), a framework designed to explain the progression of trends in cognitive development, to adult participants’ performance in a dot enumeration task. Literature in the 0-100 number line estimation task (Siegler & Booth, 2004, Ashcraft & Moore, 2011) has revealed a pervasive trend in child estimation such that young children (especially those in kindergarten) respond with a logarithmic line of best fit, while children at the third grade and above overwhelmingly respond with linear estimates to this same range of numbers. A similar developmental trend is …


Statistical Analysis Of Fatalities Due To Vehicle Accidents In Las Vegas, Nv, Annabelle Marie Mathis Aug 2011

Statistical Analysis Of Fatalities Due To Vehicle Accidents In Las Vegas, Nv, Annabelle Marie Mathis

UNLV Theses, Dissertations, Professional Papers, and Capstones

The goal of this thesis is to investigate factors that affect the odds of having a fatality in a vehicle collision. We will be looking at characteristics of the driver that caused the accident (age, gender, behavior, actions, influences, and seat belt worn), the characteristics of the vehicle the driver drove (type of vehicle, and air bag deployment), the characteristics of the environment in which the accident occurred (weather, road condition, lighting, time of day, the day of the week, and month of the year), the characteristics of the crash (direction of accident and how many vehicles were involved), and …


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




Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Covering April 5, 2011-July 4, 2011, Margaret N. Rees Jul 2011

Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Covering April 5, 2011-July 4, 2011, Margaret N. Rees

Anti-littering Programs

  • Plans were set for a meeting of government, business and nonprofit stakeholders to explore how to enhance statewide collaboration on litter and dumping issues.
  • The Hector’s Helpers program with the Clark County School District continued in various schools.
  • Planning for the integration of the information sharing portal, volunteer litter monitoring and the GIS database was conducted.
  • A total of 12 clean-up events were conducted this quarter.


Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Annual Progress Report, Period Covering July 1, 2010 - June 30, 2011, Margaret N. Rees Jun 2011

Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Annual Progress Report, Period Covering July 1, 2010 - June 30, 2011, Margaret N. Rees

Get Outdoors Nevada

  • From July 1, 2010 to June 30, 2011 the Volgistics database has increased the number of records from 6,536 to a total of 8,460 records at the end of this period.
  • Website activity this year averaged 1,110 hits per month, with an average of 2,347 pages viewed per month.
  • The team attended 11 community outreach events resulting in 2,455 direct contacts and 393 new mailing list records.
  • The Interagency Volunteer Program (IVP) completed a total of 71 volunteer events contributing a total of 17,784 volunteer hours.
  • A total of 131 volunteers completed orientations and trainings with the IVP.
  • A total …


Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering April 1, 2011-June 30, 2011, Margaret N. Rees Jun 2011

Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering April 1, 2011-June 30, 2011, Margaret N. Rees

Get Outdoors Nevada

  • The number of records in the volunteer database increased by 12.2% over the last quarter. The database now contains 8,460 records.
  • The number of site visits decreased by 12.3 % over the last quarter. Results show an average of 1,188 visits per month.
  • The number of page views increased 26.4% over last month. Results show an average of 2,632 pages viewed per month.
  • The IVP standard operations manual is under final review.
  • Get Outdoors Nevada supported twenty-one volunteer events in a variety of ways. These events utilized 1,112 volunteers whom contributed 4,599 combined hours of service.
  • Volunteer Orientation Training Automation …


Unlv Stars Fact Sheet, University Of Nevada, Las Vegas Jun 2011

Unlv Stars Fact Sheet, University Of Nevada, Las Vegas

Reports (USI)

University of Nevada, Las Vegas, by earning a 2011 Silver Rating in the Sustainability Tracking, Assessment & Ratings System (STARS), is ahead of the curve among public universities – and improving.

STARS is a voluntary, self–reporting framework developed by the Association for the Advancement of Sustainability in Higher Education (AASHE) to help measure sustainability performance over time and among colleges and universities nationwide. The UNLV Sustainability Council oversaw STARS, which by measuring sustainability can help UNLV to reduce energy consumption and waste, improve education, attract research, and generate jobs.

A rating of Silver puts UNLV in great company – with …


Unlv Stars Unabridged Report, University Of Nevada, Las Vegas Jun 2011

Unlv Stars Unabridged Report, University Of Nevada, Las Vegas

Reports (USI)

University of Nevada, Las Vegas, by earning a 2011 Silver Rating in the Sustainability Tracking, Assessment & Ratings System (STARS), is ahead of the curve among public universities – and improving.

STARS is a voluntary, self–reporting framework developed by the Association for the Advancement of Sustainability in Higher Education (AASHE) to help measure sustainability performance over time and among colleges and universities nationwide. The UNLV Sustainability Council oversaw STARS, which by measuring sustainability can help UNLV to reduce energy consumption and waste, improve education, attract research, and generate jobs.

A rating of Silver puts UNLV in great company – with …


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.


Telework Within The Bureau Of Reclamation Lower Colorado Region Office, Theresa Lee, Lynne Arnold, John Wagner, Elias Samorano, Anita Morgan May 2011

Telework Within The Bureau Of Reclamation Lower Colorado Region Office, Theresa Lee, Lynne Arnold, John Wagner, Elias Samorano, Anita Morgan

UNLV Theses, Dissertations, Professional Papers, and Capstones

A team of researchers from The University of Nevada, Las Vegas were invited by management to observe, assess, and offer recommendations. It was determined by the research team that the first step to improving participation would be to observe the functional telework policy, compare and contrast it with the Department of the Interior standards, and offer recommendations to generate data necessary to develop an updated telework policy by management. The recommendations made by this group include creating an employee eligibility list, tracking actual participation by creating a renewal policy for employees choosing to telework. It is also recommended that a …


Climate Change In Rural Nevada: The Influence Of Vulnerability On Risk Perception And Environmental Behavior, Ahmad Safi May 2011

Climate Change In Rural Nevada: The Influence Of Vulnerability On Risk Perception And Environmental Behavior, Ahmad Safi

UNLV Theses, Dissertations, Professional Papers, and Capstones

In this research, I examine the impact of vulnerability on risk perception, stated willingness to adopt individual mitigation behavior, and support for climate change mitigation policies. My major research question is, "Does vulnerability to climate change increase risk perception, encourage more energy-efficient individual behavior, and enhance support for climate change mitigation policies?" But to understand the role of vulnerability I also pursue answers to questions regarding its three components: Physical vulnerability; sensitivity and adaptive capacity. I investigate the following sub-questions:

  • Do physical vulnerability, and sensitivity to climate change increase risk perception, encourage more energy-efficient individual behavior, and enhance support for …


Estimating Wildfire Potential On A Mojave Desert Landscape Using Remote Sensing And Field Sampling, Peter F. Van Linn Iii May 2011

Estimating Wildfire Potential On A Mojave Desert Landscape Using Remote Sensing And Field Sampling, Peter F. Van Linn Iii

UNLV Theses, Dissertations, Professional Papers, and Capstones

Landscape level wildfire prediction can be used to allocate wildfire resources and guide land management practices. Wildfire prediction in arid habitats in the Southwestern United States is of specific concern because of the negative ecological impacts of fire on desert habitats and the current lack of accurate fire prediction tools for such areas. This study examines the ability to predict previous fire occurrences and estimate future fire potential using satellite imagery and on the ground field survey techniques along with ignition potential data (lightning strikes and distance to roads), topographical data (elevation and aspect), and climate information (maximum and minimum …


Consensus On The Colorado: Issues In The Allocation Of A Limited Resource, Jeffrey D. Tilton May 2011

Consensus On The Colorado: Issues In The Allocation Of A Limited Resource, Jeffrey D. Tilton

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to identify current issues in water allocation in the Lower Colorado River Basin and to locate existing areas of consensus among its stakeholders. Surveys, both paper and web-based provided the data required to measure overwhelming agreement on issues. The data analysis served to locate the areas of agreement within and between interest groups. While overwhelming agreement between all groups proved to be a relatively rare occurrence, the existence of issue specific agreement between two or more groups was more common than expected. Accord was demonstrated in all four major areas: allocation, augmentation, conservation, and …


An Empirical Comparison Of Life Cycle Cost Of Green School Buildings And Non-Green School Buildings, Nitisha Pushpala May 2011

An Empirical Comparison Of Life Cycle Cost Of Green School Buildings And Non-Green School Buildings, Nitisha Pushpala

UNLV Theses, Dissertations, Professional Papers, and Capstones

One of the major economic concerns today of the world is reduction of energy consumption because of depleting energy sources in the world. The construction sector in the United States is also contributing in reducing the energy consumption and construction cost of the buildings by constructing cost and energy efficient buildings with energy efficient materials and techniques. The U.S Department of Energy introduced the Building Technologies Program that develops techniques, tools and technologies for making buildings more energy efficient. Other private bodies like the Leadership in Energy and Environmental Design (LEED), which is developed by the U.S. Green Building Council …


Planning For Building-Integrated Agriculture In Las Vegas, Robert Vralsted May 2011

Planning For Building-Integrated Agriculture In Las Vegas, Robert Vralsted

UNLV Theses, Dissertations, Professional Papers, and Capstones

High food prices, concern about food nutrition and safety, and an awareness of commercial farming's environmental impact have generated a renewed interest in sustainable urban agriculture. Advances in controlled environment agriculture (CEA) have made it possible to grow food virtually anywhere in a much more sustainable manner than traditional field-based agriculture. Locating and planning urban farms using retrofitted existing building stock to maximize food production and ease of distribution in Las Vegas requires consideration of multiple barriers related to geography, economics, and the built environment. Consideration of these factors in the planning process informs the design of a successful BIA …


Risk Auto Theft: Predicting Spatial Distributions Of Crime Events, Tana J. Gurule, Tamara D. Madensen Apr 2011

Risk Auto Theft: Predicting Spatial Distributions Of Crime Events, Tana J. Gurule, Tamara D. Madensen

Graduate Research Symposium (GCUA) (2010 - 2017)

Police typically rely on retrospective hotspot maps to informe prevention strategies aimed at reducing future crime. The current study reviews environmental crime theories that help to identify casual factors associated with rish of auto theft. Map layers are created from data that operationalize these risk factors. These layers are combined using spatial analysis techniques to produce a "risk density" map. Analysis of crime data are used to determing wheter our "risk density" map better predicts subsequetnt theft events than a traditional retrospective hotspot map.