A5065334012- Landslides and related hazards
- Hydrology and Sediment Transport Processes
- Cardiac Arrest and Resuscitation
- Traumatic Brain Injury Research
- Soil erosion and sediment transport
- Geology and Paleoclimatology Research
- Sports injuries and prevention
- Cardiovascular Effects of Exercise
- Cryospheric studies and observations
- Astronomy and Astrophysical Research
- Geotechnical Engineering and Analysis
- Hydrology and Watershed Management Studies
- Planetary Science and Exploration
- Geotechnical Engineering and Underground Structures
- Particle accelerators and beam dynamics
- Gyrotron and Vacuum Electronics Research
- Geological and Geochemical Analysis
- Soil and Unsaturated Flow
- Archaeology and Natural History
- Geological formations and processes
- Nuclear Physics and Applications
- Remote Sensing and LiDAR Applications
- Sports Performance and Training
- Advancements in Photolithography Techniques
- Stellar, planetary, and galactic studies
Washington Water Science Center
2015-2024
United States Geological Survey
2014-2024
BGC Engineering (Canada)
2024
University of Oklahoma
2012-2024
University of Alabama at Birmingham
2012-2024
University of Wisconsin–Madison
2008-2024
Heartland Cancer Research
2021-2023
Children's National
2022
Uniformed Services University of the Health Sciences
2021-2022
University of Washington
2006-2022
We present a catalog of 9316 spectroscopically confirmed white dwarfs from the Sloan Digital Sky Survey Data Release 4. have selected stars through photometric cuts and spectroscopic modeling, backed up by set visual inspections. Roughly 6000 are new discoveries, roughly doubling number dwarfs. analyze performing temperature surface gravity fits to grids pure hydrogen helium atmospheres. Among rare outliers presumed helium-core DA with estimated masses below 0.3 Msun, including two...
Objective: To present evidence-based recommendations that promote optimized fluid-maintenance practices for physically active individuals. Background: Both a lack of adequate fluid replacement (hypohydration) and excessive intake (hyperhydration) can compromise athletic performance increase health risks. Athletes need access to water prevent hypohydration during physical activity but must be aware the risks overdrinking hyponatremia. Drinking behavior modified by education, accessibility,...
To present recommendations for the prevention and screening, recognition, treatment of most common conditions resulting in sudden death organized sports.
SDSS-V will be an all-sky, multi-epoch spectroscopic survey of over six million objects. It is designed to decode the history Milky Way, trace emergence chemical elements, reveal inner workings stars, and investigate origin planets. also create integral-field map gas in Galaxy Local Group that 1,000x larger than current state art at high enough spatial resolution self-regulation mechanisms galactic ecosystems. pioneer systematic, monitoring across whole sky, revealing changes on timescales...
Rainfall-induced debris flows are flow failures in residual and colluvial soils initiated by a reduction of confining stress as result pore-water pressure rise during or following periods intense rainfall. To establish appropriate stability analysis procedures, the behavior soil from source area is investigated. Constant-shear-drained triaxial tests, tests that mimic field path, anisotropically consolidated undrained performed at in-situ level indicate loading prerequisite for failure....
To compare the frequency and magnitude of head impacts between National Collegiate Athletic Association Division I American high school football players. The long-term goal is to correlate impact forces with injury patterns, leading improvements in protective headgear.The helmets players at University Oklahoma (n = 40) Casady High School 16) were instrumented Head Impact Telemetry System (Simbex, Lebanon, NH). Data collected for practices games 2005 season analyzed by player position school....
We study Milky Way kinematics using a sample of 18.8 million main-sequence stars with r<20 and proper-motion measurements derived from SDSS POSS astrometry, including ~170,000 radial-velocity the spectroscopic survey. Distances to are determined photometric parallax relation, covering distance range ~100 pc 10 kpc over quarter sky at high Galactic latitudes (|b|>20 degrees). find that in region defined by 1 <Z< 5 3 <R< 13 kpc, rotational velocity for disk smoothly decreases, all three...
Background: Timely removal from activity after concussion symptoms remains problematic despite heightened awareness. Previous studies indicated potential adverse effects of continuing to participate in physical immediately sustaining a concussion. Hypothesis/Purpose: The purpose was determine the effect timing play on clinical outcomes. It hypothesized that immediate sport-related (SRC) would be associated with less time missed sport, shorter symptomatic period, and better outcomes acute...
The secondary school athletic population leads the nation in athletic-related deaths.1–6 Given that many such deaths are avoidable through proper prevention, recognition, and treatment protocols, those involved with athletics can benefit from policy considerations regarding health safety for participation sport. of athletes is paramount, but barriers jeopardize delivery optimal preventive measures remain prevalent across landscape. To date, these "best-practices" recommendations have been...
Of all sports, football accounts for the highest incidence of concussion in US due to large number athletes participating and nature sport. While there is general agreement that can be reduced through rule changes teaching proper tackling technique, remains debate as whether helmet design may also reduce concussion. A retrospective analysis was performed head impact data collected from 1833 collegiate players who were instrumented with helmet-mounted accelerometer arrays games practices....
The Large Synoptic Survey Telescope is designed to provide an unprecedented optical imaging dataset that will support investigations of our Solar System, Galaxy and Universe, across half the sky over ten years repeated observation. However, exactly how LSST observations be taken (the observing strategy or "cadence") not yet finalized. In this dynamically-evolving community white paper, we explore detailed performance anticipated science expected depend on small changes strategy. Using...
Abstract Topographic surveys inevitably contain error, introducing uncertainty into estimates of volumetric or mean change based on the differencing repeated surveys. In geomorphic community, has often been framed as a problem separating out real from apparent due purely to and addressed by removing measured considered indistinguishable random noise analyses (thresholding). Thresholding is important when quantifying gross changes (i.e. total erosion deposition), which are systematically...
Abstract Purpose: Metaplastic breast cancer (MpBC) is a rare aggressive subtype that responds poorly to cytotoxics. Median survival approximately 8 months for metastatic disease. We report results advanced MpBC treated with ipilimumab + nivolumab, cohort of S1609 cancers (DART: NCT02834013). Patients and Methods: Prospective, open-label, multicenter phase II (two-stage) trial (1 mg/kg i.v. every 6 weeks) plus nivolumab (240 mg 2 MpBC. Primary endpoint was objective response rate (ORR)....
Background An arthroscopic iliopsoas tendon release will alleviate painful snapping of the tendon. One question that remains is whether athletes can return to sports after this procedure. This study presents results 5 competitive and 10 recreational who had an their Hypothesis Athletes full participation in sport release. Study Design Case series; Level evidence, 4. Methods Fifteen (2 college, 3 high school, recreational) with hips no pain relief anesthetic magnetic resonance arthrography...
This observational study was designed to determine whether football players with a history of heat cramps have elevated fluid and sodium losses during training. During “two-a-day” training camp, five Division I collegiate (20.2 ± 1.6 y, 113 20 kg) (C) were matched (weight, age, race position) cohort teammates (19.6 0.6 110 who had never cramped (NC). Change in body weight (adjusted by intake) determined gross sweat loss. Sweat samples (forearm patch) analyzed for potassium concentrations....
Research Article| May 01, 2015 Exhumation by debris flows in the 2013 Colorado Front Range storm Scott W. Anderson; Anderson 1Department of Geography, and Institute Arctic Alpine (INSTAAR), University Colorado, Boulder, 80309, USA *Current address: U.S. Geological Survey, Tacoma, Washington 98402, USA. Search for other works this author on: GSW Google Scholar Suzanne P. † †E-mail: Suzanne.Anderson@colorado.edu Robert S. 2Department Sciences, Geology (2015) 43 (5): 391–394....
Research Article| March 01, 2014 Geologic and physiographic controls on bed-material yield, transport, channel morphology for alluvial bedrock rivers, western Oregon Jim E. O'Connor; O'Connor † 1U.S. Geological Survey, Water Science Center, 2130 SW 5th Avenue, Portland, 97201, USA †E-mail: oconnor@usgs.gov Search other works by this author on: GSW Google Scholar Joseph F. Mangano; Mangano USA2Department of Geosciences, Colorado State University, Fort Collins, 80523, Scott W. Anderson;...
Background: A student-athlete’s mental state, including history of trait anxiety and depression, or current psychological state may affect baseline concussion assessment performance. Purpose: (1) To determine if illness (anxiety, with depression) influences scores, (2) to correlates performance, (3) affects Brief Symptom Inventory–18 (BSI-18) subscores anxiety, somatization. Study Design: Cross-sectional study; Level evidence, 3. Methods: sample 8652 collegiate student-athletes (54.5% males,...
Abstract River channel beds aggrade and incise through time in response to temporal variation the upstream supply of water sediment. However, we lack a thorough understanding which these is dominant driver bed elevation change. This hampers flood hazard prediction, as changes can either augment or reduce heights. Here, explore drivers change using multidecadal series river at 49 United States Geological Survey (USGS) gage sites uplands Washington State, USA. We find that elevations many...
Following spatially expansive landslide events, rapid remote sensing data acquisition is perhaps the most efficient means of capturing nature and extent landsliding. This particularly true in Appalachian Mountains eastern North America, where high annual rainfall, humidity, vegetation can obscure features within a single growing season. In July 2022, convective rainfall event with an exceedance probability 0.1&#8211;0.2% caused record-breaking flooding widespread landslides throughout...
The potential for collapse due to a reduction in confinement is evaluated two very different soils: uniformly graded sand and an undisturbed clayey colluvial soil. Soil specimens were consolidated anisotropically subjected constant-shear-drained (CSD) tests. During the CSD test, effective confining pressure gradually reduced while shear stress held constant. Only loose observed before failure envelope or steady state reached. In general, path behave differently than of similar initial...