Researchers Mine Information from Next-Generation Subsurface Flow Simulations
A research team based at Virginia Tech University leveraged computing resources at the US Department of Energy's (DOE's) Oak Ridge National Laboratory to explore subsurface multiphase flow phenomena that can't be experimentally observed. Using the Cray XK7 Titan supercomputer at the Oak Ridge Leadership Computing Facility, the team took Micro-CT images of subsurface geologic systems and created two-phase flow simulations. The team's model development has implications for computational research pertaining to carbon sequestration, oil recovery, and contaminant transport. (Source: Computing in Science and Engineering)
Source: Computing in Science and Engineering - December 22, 2015 Category: Information Technology Source Type: research
Tonal noise production from a wall-mounted finite airfoil
This study is concerned with the flow-induced noise of a smooth wall-mounted finite airfoil with flat ended tip and natural boundary layer transition. Far-field noise measurements have been taken at a single observer location and with a microphone array in the Virginia Tech Stability Wind Tunnel for a wall-mounted finite airfoil with aspect ratios of L / C = 1 – 3 , at a range of Reynolds numbers ( Re C = 7.9 × 10 5 – 1.6 × 10 6 , based on chord) and geometric angles of attack ( α = 0 – 6 ° ) . At these Reynolds numbers, the wall-mounted finite airfoil produces a broadband noise contribution w...
Source: Journal of Sound and Vibration - December 8, 2015 Category: Physics Source Type: research
Virginia Tech as a Sentinel Event: The Role of Psychiatry in Managing Emotionally Troubled Students on College and University Campuses
This article reviews the role of psychiatry in colleges and universities, and argues that psychiatrists are significantly underutilized as consultants and educators in managing emotionally troubled students. Focusing on the 2007 Virginia Tech mass shooting case as a sentinel event, the article outlines mental health issues facing post-secondary institutions and legal issues related to psychiatric services, including the following: the increased need for psychiatric services on campus; communication challenges among campus groups involved in managing high-risk students; efforts to balance patient confidentiality with public...
Source: Harvard Review of Psychiatry - November 1, 2015 Category: Psychiatry Tags: Perspectives Source Type: research
2011 Joplin, Missouri Tornado Experience, Mental Health Reactions, and Service Utilization: Cross-Sectional Assessments at Approximately 6 Months and 2.5 Years Post-Event
Conclusions
We conducted two surveys of Joplin, Missouri residents to examine 2011 tornado experience, mental health reactions, and service utilization following the event. Survey 1 was conducted approximately 6 months after the tornado and utilized an RDD sample. Survey 2 was conducted approximately 2.5 years after the event and utilized a purposive convenience sample and was conducted online.
Probable PTSD prevalence was 12.63% at Survey 1 and 26.74% at Survey 2, while current depression prevalence was 20.82% at Survey 1 and 13.33% at Survey 2. The increase of probable PTSD from Survey 1 to Survey 2 may be related, i...
Source: PLOS Currents Disasters - October 26, 2015 Category: Global & Universal Authors: bhouston Source Type: research
Modeling driver stop/run behavior at the onset of a yellow indication considering driver run tendency and roadway surface conditions
Publication date: October 2015 Source:Accident Analysis & Prevention, Volume 83 Author(s): Mohammed Elhenawy, Arash Jahangiri, Hesham A. Rakha, Ihab El-Shawarby The ability to model driver stop/run behavior at signalized intersections considering the roadway surface condition is critical in the design of advanced driver assistance systems. Such systems can reduce intersection crashes and fatalities by predicting driver stop/run behavior. The research presented in this paper uses data collected from two controlled field experiments on the Smart Road at the Virginia Tech Transportation Institute (VTTI) to...
Source: Accident Analysis and Prevention - July 29, 2015 Category: Accident Prevention Source Type: research
Modeling driver stop/run behavior at the onset of a yellow indication considering driver run tendency and roadway surface conditions.
Abstract
The ability to model driver stop/run behavior at signalized intersections considering the roadway surface condition is critical in the design of advanced driver assistance systems. Such systems can reduce intersection crashes and fatalities by predicting driver stop/run behavior. The research presented in this paper uses data collected from two controlled field experiments on the Smart Road at the Virginia Tech Transportation Institute (VTTI) to model driver stop/run behavior at the onset of a yellow indication for different roadway surface conditions. The paper offers two contributions. First, it...
Source: Accident; Analysis and Prevention. - July 27, 2015 Category: Accident Prevention Authors: Elhenawy M, Jahangiri A, Rakha HA, El-Shawarby I Tags: Accid Anal Prev Source Type: research
When tragedy hits close to home
Aurora, Colorado. Fort Hood, Texas. Virginia Tech. The Washington Navy Yard. And, most recently, Charleston, South Carolina. Each of these places transitioned from being a name on a map to an instant reminder of the devastating aftermath of mass violence. Another is Sandy Hook, the Newtown, Connecticut, elementary school where shooter Adam Lanza killed 26 people,...continue reading (Source: Counseling Today)
Source: Counseling Today - July 24, 2015 Category: Psychiatry & Psychology Authors: By Lynne Shallcross Tags: Counseling Today Features school shooting Trauma and Disaster Source Type: research
Prevalence of IgG Antibodies to Toxoplasma gondii in Veterinary and Undergraduate Students at Virginia Tech, Blacksburg, Virginia
Summary
Toxoplasma gondii is a globally distributed parasitic protozoan that infects humans and other warm‐blooded vertebrates. Felids are the only definitive host for T. gondii, and they excrete oocysts in their faeces. The national prevalence in humans is declining in the United States. This zoonotic organism is of particular interest due to its importance in pregnant women, in individuals with altered immune systems, and in reactivated ocular infections. Exposure to the parasite in humans is usually associated with consumption of raw or undercooked meat or by accidental ingestion of oocysts. It was hypothesized that ...
Source: Zoonoses and Public Health - March 1, 2015 Category: Infectious Diseases Authors: A. C. Rosypal, A. E. Houk, A. M. Zajac, D. S. Lindsay Tags: Original Article Source Type: research
The Trauma of Uncertainty: The Use of Comprehensive Assessment and Prolonged Exposure to Treat Indirect Exposure to a Mass Shooting
In the presented case, "Daryl" experienced 12 hr of uncertainty regarding the safety of a friend before learning the friend was killed during the April 16th shootings at Virginia Tech. Treatment began 4 years following the shootings. Daryl has two previous premature terminations, was treatment resistant, and at high risk for dropping out. Prolonged exposure (PE) was postponed for nine sessions while comprehensive assessment and psychoeducation occurred. PE took place over 15 sessions, with follow-ups occurring at 3, 6, and 12 months following treatment. During PE, a second shooting and accompanying deteriorating sleep led ...
Source: Clinical Case Studies - December 26, 2014 Category: Psychiatry Authors: Wusik, M. F., Jones, R. T. Tags: Articles Source Type: research
Projected Impact of Vaccination Timing and Dose Availability on the Course of the 2014 West African Ebola Epidemic
Discussion
While trials of vaccine for Ebola virus are ongoing, and consequently the estimates presented above are imprecise, our analysis offers four important qualitative results regarding vaccination as a tool for the control of the Ebola epidemic that may be helpful to manufacturers, governments, and health organizations:
We estimate that current non-vaccine interventions are reducing the reproductive number of Ebola in West Africa, even in the absence of large numbers of immune individuals. The final size of this epidemic is projected to be ~ 1% of the regional population. This means that reductions in reproductive...
Source: PLOS Currents Outbreaks - November 21, 2014 Category: Epidemiology Authors: dfisman Source Type: research
Racial and mental illness stereotypes and discrimination: An identity-based analysis of the Virginia Tech and Columbine shootings.
The Virginia Tech and Columbine High shootings are 2 of the deadliest school massacres in the United States. The present study investigates in a nationally representative sample how White Americans’ causal attributions of these shooting moderate their attitudes toward the shooter’s race. White Americans shown a vignette based on the Virginia Tech shooting were more likely to espouse negative beliefs about Korean American men and distance themselves from this group the more they believed that the shooter’s race caused the shooting. Among those who were shown a vignette based on the Columbine High shooting, believing t...
Source: Cultural Diversity and Ethnic Minority Psychology - September 8, 2014 Category: Psychiatry & Psychology Authors: Chen, Charlene Y.; Purdie-Vaughns, Valerie; Phelan, Jo C.; Yu, Gary; Yang, Lawrence H. Source Type: research
Delayed Treatment Seeking Following the April 16th Shootings at Virginia Tech: Impact on a First Responder
This case study discusses the treatment of an emergency responder to the 2007 shooting on Virginia Tech’s campus where 33 students and faculty members were killed. After a thorough assessment, prolonged exposure (PE) was used to treat the emergency worker, referred to as Jack, for posttraumatic stress disorder (PTSD). Assessment measures administered at the conclusion of treatment, 1 month post-treatment, and 6 months post-treatment suggest that the treatment gains were maintained following the culmination of treatment. The primary aim of this article is to provide support for the effectiveness of PE among emergency ...
Source: Clinical Case Studies - September 2, 2014 Category: Psychiatry Authors: Golden, L. L., Jones, R. T., Donlon, K. Tags: Articles Source Type: research
Mechanistic Insight into the Electronic Influences Imposed by Substituent Variation in Polyazine-Bridged Ruthenium(II)/Rhodium(III) Supramolecules.
Abstract
Invited for the cover of this issue are researchers from the Department of Chemistry at Virginia Tech featuring work on electrochemical properties of photochemical molecular devices for solar hydrogen production. The image highlights the complexity of the redox chemistry of the studied supramolecules, detailing speciation following reduction. Mr. Skye King assisted in the development of the molecular models for the cover. Read the full text of the article at 10.1002/chem.201402564.
PMID: 24898974 [PubMed - as supplied by publisher] (Source: Chemistry)
Source: Chemistry - June 4, 2014 Category: Chemistry Authors: White TA, Mallalieu HE, Wang J, Brewer KJ Tags: Chemistry Source Type: research
Firearms regulation, violence and the mentally ill: A contemporary Antipodean appraisal.
This article explores in more detail how such policies and practices have been applied in the Australian State of New South Wales and the lessons to be learned elsewhere from this experience.
PMID: 24768212 [PubMed - as supplied by publisher] (Source: International Journal of Law and Psychiatry)
Source: International Journal of Law and Psychiatry - April 23, 2014 Category: Medical Law Authors: Chappell D Tags: Int J Law Psychiatry Source Type: research
Snapshot: High of 74 + Dolphins re-sign Starks + Former Gov. Askew dies + 3 killed in Venezuela + Happy Birthday WWW (Video)
Here are the top stories you need to know about.
South Florida weather
High of 74. Partly cloudy with 10 percent chance of rain.
Sports
Miami Heat lost to the Brooklyn Nets 95-96 yesterday in Miami. The team will play the Nuggets tomorrow at 6:30 p.m. College basketball: The Miami Hurricanes lost to Virginia Tech 53-57 yesterday. The Hurricanes will play North Carolina State Wolfpack tonight at 6 p.m. Dolphins re-sign DT Randy Starks, remain busy in free agency(Sun Sentinel)
Talkers
Former… (Source: bizjournals.com Health Care:Physician Practices headlines)
Source: bizjournals.com Health Care:Physician Practices headlines - March 13, 2014 Category: American Health Authors: Shaun Bevan Source Type: research
