A5102906871- Radioactive contamination and transfer
- Nuclear and radioactivity studies
- Plant Water Relations and Carbon Dynamics
- Forest ecology and management
- Radioactivity and Radon Measurements
- Mechanical Circulatory Support Devices
- Cardiac Arrest and Resuscitation
- Atmospheric chemistry and aerosols
- Vehicle emissions and performance
- Cardiac Structural Anomalies and Repair
- Plant responses to elevated CO2
- Tree-ring climate responses
- Odor and Emission Control Technologies
- Fire effects on ecosystems
- Groundwater flow and contamination studies
- Environmental Impact and Sustainability
- Radioactive element chemistry and processing
- Atmospheric and Environmental Gas Dynamics
- Soil Carbon and Nitrogen Dynamics
- Urban Green Space and Health
- Urban Heat Island Mitigation
- Electrokinetic Soil Remediation Techniques
- Anaerobic Digestion and Biogas Production
- Radioactive Decay and Measurement Techniques
- Soil and Unsaturated Flow
Baltimore City Health Department
2021
Alaska Heart and Vascular Institute
2018-2020
Inova Health System
2020
University of Manchester
2004
Queen's University Belfast
2004
Savannah River National Laboratory
1988-2003
Westinghouse Electric (United States)
1990
DuPont (United States)
1982-1989
Duke Medical Center
1986
Duke University
1977
Cardiogenic shock (CS) is a multifactorial, hemodynamically complex syndrome associated with high mortality. Despite advances in reperfusion and mechanical circulatory support, management remains highly variable outcomes poor.This study investigated whether standardized team-based approach can improve CS risk score guide clinical decision making.A total of 204 consecutive patients were identified. etiology, patient demographic characteristics, right heart catheterization, support use,...
Several soil-plant-atmosphere models have been developed to simulate the energy transport and CO2 exchange of vegetation (Waggoner, Furnival & Reifsnyder 1969; Stewart Lemon Sinclair, Allen 1971; Murphy Knoerr 1970, 1972; Goudriaan Waggoner 1972). These were designed simulate, at a detailed complex level, physical processes involved. Submodels physiological included in these so that predictions micrometeorological conditions could be used water vapour by foliage. Previous they required...
The Savannah River Site has produced plutonium, tritium, and other special nuclear materials for national defense, government programs, some civilian purposes. Radiocesium, a waste product, been released to the environment during operation of five reactors, two radiochemical processing facilities, high-level storage system. During period 1955–1989, 130 GBq 137Cs was atmosphere 2.2 × 104 site streams ponds. Approximately 65% latter remained on site. maximum individual effective dose...
The development and implementation of a Cardiogenic Shock initiative focused on increased disease awareness, early multidisciplinary team activation, rapid initiation mechanical circulatory support, hemodynamic-guided management improvement outcomes in cardiogenic shock.The objectives this study are (1) to collect retrospective clinical for acute decompensated heart failure shock myocardial infarction shock, compare current versus historical survival rates outcomes; (2) evaluate Inova Heart...
A model of the energy exchange between atmosphere and a vegetated surface has been developed used to investigate sources available for evaporation precipitation intercepted by forest canopy. Simulations with this have demonstrated that canopy wetted rainfall will partition more absorbed radiant into latent heat than an unwetted in same environment. This diversion creates decrease sensible transfer from smaller long‐wave radiation emitted
Abstract A computer model was developed for estimating the uptake of sulfur dioxide (SO 2 ) by forests. Submodels are used to calculate atmospheric diffusion immediately above and within forest canopy, into sink areas trees. The program implementing is general can be with only minor changes many gaseous pollutants. Simulations SO sources canopy indicate that moderate amounts absorbed forests during periods favorable weather. inside suggest increased while tolerable levels concentrations...
Abstract Background Transradial access (TRA) is associated with improved survival and reduced vascular complications in acute myocardial infarction (AMI). Limited data exist regarding TRA utilization outcomes for AMI complicated by cardiogenic shock (CS). We sought to assess the safety, feasibility, clinical of AMI‐CS. Methods One‐hundred fifty‐three patients AMI‐CS were stratified into tertiles disease severity using CardShock score. The primary endpoint was successful percutaneous coronary...
The tritiated water (HTO) technique was evaluated as a method for measurement of transpiration young loblolly pine. Twenty-one millicuries tritium in 3 ml were injected into holes drilled at the base trees. rate estimated to average 8.3 liters/day per tree three trees February and 40.4 single July. Several methods collecting from analysis evaluated. collection by condensation clear plastic bags sealed around branch tips proved be simple, reliable water. Difference integral activity with...
Urban forested natural areas are an important component of the forest and tree canopy in northeastern United States urban areas. Although similar to native forests surrounding regions structure, composition, function, these threatened by multiple, co-occurring biological climate stressors that exacerbated environment. Furthermore, cities often lack application formal silvicultural approaches reliant upon evidence-based applied ecological sciences. These include both urban- climate-adapted...
Abstract At the Savannah River Site, it is planned to dispose of liquid, lowlevel nuclear waste by incorporating into a solid, concrete form called saltstone . Saltstone monoliths will be buried in claycapped, subterranean vaults. Although vault/cap burial system designed severely limit access vegetative roots saltstone, study was begun 1984 determine potential for root uptake radionuclides, case an unforeseen accident should cause exposure saltstone. Thirty‐two lysimeters were designed,...
(1) Energy balance measurements based on Bowen ratio techniques were used in conjunction with the big-leaf model to characterize energy and mass exchange between atmosphere forest canopy a loblolly pine plantation. (2) The partitioning of net radiation into latent sensible heat by varied greatly time day from even when measured at same day. Such variation results variations radiation, resistance, air vapour density deficit. maximum during daylight hours was 2.3 minimum 0.1 1. (3) Canopy...
The history of tritium releases to the groundwater from buried waste was reconstructed through dendrochronology. Wood dated tree rings sectioned a cross-section that thought tap groundwater. Cellulose chemically separated wood. cellulose combusted and water combustion collected for liquid scintillation counting. concentration in rose rapidly after 1972 which prior first measurements made this area. Trends outcropping surface are similar trends rings..
Abstract An experiment was carried out to determine the uptake rate and fate of SO 2 absorbed by forest canopy. The radioactive tracer, 35 S used. Branches loblolly pine were exposed in field with a portable chamber. branches excised sample needles immediately washed distilled water. water collected analyzed for content. results indicated that portion could be from another not removed rinse. rinsing at followed patterns absorption, which suggested absorption controlled stomatal diffusion,...
Elevated tritium levels were found in samples of pine needles and surface leaf litter taken along the path an atmospheric tritiated water release from Savannah River Plant, Aiken, South Carolina. After initial exposure period, declined to background within 3 days. The equilibration half-time for terrestrial ecosystems is much shorter after than molecular tritium. This difference due preferential deposition soil.
A model of tritium transport in the environment near an atmospheric source is presented general context modelling material cycling ecosystems. The temporal and spatial scales were chosen to allow a comparison with environmental monitoring data for collected vicinity Savannah River Plant. Initial simulations showed good agreement data, which included measurements vegetation concentrations. can also simulate values organic matter if key parameter distributing hydrogen varied fit data. However,...