A5105675994- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Molecular Spectroscopy and Structure
- Particle Detector Development and Performance
- Fish Ecology and Management Studies
- Advanced Chemical Physics Studies
- Freshwater macroinvertebrate diversity and ecology
- Atmospheric Ozone and Climate
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Spectroscopy and Laser Applications
- Water Quality and Resources Studies
- Neutrino Physics Research
- Environmental Toxicology and Ecotoxicology
- Black Holes and Theoretical Physics
- Aquatic Invertebrate Ecology and Behavior
- Mercury impact and mitigation studies
- Inorganic Fluorides and Related Compounds
- Particle Accelerators and Free-Electron Lasers
- Soil and Water Nutrient Dynamics
- Water Quality and Pollution Assessment
- Computational Physics and Python Applications
- Heavy metals in environment
- Usability and User Interface Design
University of Exeter
1993-2024
University of Minnesota
2000-2024
Carnegie Mellon University
2023-2024
McMaster University
2023
Community Living
2022
University of Colorado Boulder
2005-2021
Oak Ridge National Laboratory
2009-2020
University of California, Davis
2011-2019
Institute of High Energy Physics
2012-2018
University of Bristol
2010-2018
A precise measurement of the cross section process $e^+e^-\toπ^+π^-(γ)$ from threshold to an energy 3GeV is obtained with initial-state radiation (ISR) method using 232fb$^{-1}$ data collected BaBar detector at $e^+e^-$ center-of-mass energies near 10.6GeV. The ISR luminosity determined a study leptonic $e^+e^-\toμ^+μ^-(γ)γ_{\rm ISR}$, which found agree next-to-leading-order QED prediction within 1.1%. for systematic uncertainty 0.5% in dominant $ρ$ resonance region. leading-order hadronic...
Personal control exercised by 74 adults from community living settings in Minnesota was evaluated. Comparisons between living-unit sizes or types controlled statistically for pre-existing differences adaptive and challenging behavior. Individuals semi-independently more personal than did residents of HCBS Waiver-funded settings, who had persons ICFs/MR. Within the 1- to 5-person size range, size-related were detected control. Using hierarchical regression, we found that characteristics,...
A 16-parameter force field for OCS based on curvilinear coordinates is presented in table 2 and the agreement between observed calculated transitions rotational constants indicated tables 4, 5 6. The computational approach differs from that of Morino Nakagawa [2] similar work other molecules by authors, perturbation theory eschewed vibrational are derived via numerical solution a large matrix. usual parameters xij , yijk α i B γ ij thereby rendered inappropriate intermediates. also leads to...
Abstract The quantification of absorbed light is essential for understanding laser-material interactions and melt pool dynamics in order to minimize defects additively manufactured metal components. geometry a vapor depression formed during laser melting closely related energy absorption. This relationship has been observed by the state-of-the-art situ high-speed synchrotron X-ray visualization integrating sphere radiometry. These two techniques create temporally resolved dataset consisting...
Centrifugal distortion shifts in the microwave spectra of cis and trans nitrous acids their deuterated species have been analyzed using first-order treatments Hill Edwards, Watson. The two methods are close agreement for ground vibrational state planar molecules. constants thus derived used, together with infra-red fundamentals isotopic shifts, to determine quadratic potential function each isomer. Eleven out a possible sixteen force determined as follows (in mdyn Å–1): acid, ƒ11(OH)= 6.55,...
OBJECTIVES ChatGPT is an artificial intelligence model that can interpret free-text prompts and return detailed, human-like responses across a wide domain of subjects. This study evaluated the extent threat posed by to validity short-answer assessment problems used examine pre-clerkship medical students in our undergraduate education program. METHODS Forty prior student assessments were retrieved stratified levels Bloom's Taxonomy. Thirty these submitted ChatGPT-3.5. For remaining 10...
The light : nutrient hypothesis posits that herbivore growth is increasingly constrained by low food quality as the ratio of to nutrients increases in aquatic ecosystems. We tested predictions this examining effects large seasonal cycles and on mineral content periphyton rate a dominant (the snail Elimia clavaeformis) two oligotrophic streams. Streambed irradiances White Oak Creek Walker Branch (eastern Tennessee, USA) varied dramatically basis due leaf phenology surrounding deciduous...
Recovery dynamics in a previously disturbed stream undergoing remediation was assessed by measuring several chemical and biological endpoints. Three major trophic levels (periphyton, benthic macroinvertebrates, fish communities) were analyzed along with various indicators of health including sub-organismal (biochemical physiological) individual-level responses. Ambient toxicity testing, water quality measurements, bioaccumulation studies also conducted to provide additional recovery....
The ground-state rotational spectra of 16OPF3 and 18OPF3 have been recorded analysed to yield a structure accurate centrifugal distortion constants. pure spectrum has for five the molecule's vibrationally excited states. analysis ν5 = 1 ν6 states is discussed in detail values ζ55 z ζ66 obtained. In addition, information obtained about elusive A constant due an accidental near degeneracy which yields value ν=4797·86 MHz. Some used derive harmonic force field OPF3 molecule. use constants...
A gas microwave spectrometer using source modulation is briefly described, together with its special features to minimize cell reflections and optimize performance. These include second derivative presentation, a high pass signal filter in the output, klystron phase locking retention of optimum position on mode, attenuators inside waveguide tapers. Some examples performance are given figures.
Summary. Luteal tissue slices from an African elephant in early pregnancy have been shown to synthesize progesterone added pregnenolone. The percentage conversion (2·4%/100 mg luteal tissue/hr) is very much lower than that found for human, bovine and porcine corpora lutea. It was possible isolate a small amount of (0·18 μg/g) large quantity taken another pregnant elephant; this far below the values active lutea all other mammals. reasons relative inability are not known. may be extremely...
Abstract Some expected changes in climate resulting from human greenhouse gas emissions are clear and well documented, but others may be harder to predict because they involve extreme weather events or heretofore unusual combinations of patterns. One recent example that become more frequent with change occurred early spring 2007 when a large Arctic air mass moved into the eastern United States following very warm late winter. In this paper, we document effects freeze event on Walker Branch,...
This Classic Article is a reprint of the original work by John Gregory Smith, Pathological Appearances Seven Cases Injury Shoulder-Joint: With Remarks. An accompanying biographical sketch FRCS available at DOI 10.1007/s11999-010-1232-9. The ©1834 and reprinted from Smith JG. appearances seven cases injury shoulder-joint: with remarks. London Medical Gazette. 1834;14:280-285.
The sulfonylurea herbicides are commonly used in the cereal belt of south-eastern Australia and there is concern that their persistence alkaline soils long enough to damage subsequent rotational crops such as legumes oilseeds. In this study, we investigated leaching 3 (chlorsulfuron, triasulfuron metsulfuron-methyl) (pH range 7.4–8.6) for at least 4 years after treatment. general, chlorsulfuron was predicted persist 3–5 [time degrade 1% (DT99) 33–63 months treatment depending on field site],...
We study the processes $\gamma \gamma \to K^0_S K^{\pm}\pi^{\mp}$ and K^+ K^- \pi^0$ using a data sample of 519~$fb^{-1}$ recorded with BaBar detector operating at SLAC PEP-II asymmetric-energy $e^+ e^-$ collider center-of-mass energies near $\Upsilon(nS)$ ($n = 2,3,4$) resonances. observe $\eta_c$ decays to both final states perform Dalitz plot analyses model-independent partial wave analysis technique. This allows measurement mass-dependence $I=1/2$ $K \pi$ $\mathcal{S}$-wave amplitude...