A5025625995- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Dark Matter and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Computational Physics and Python Applications
- Particle Accelerators and Free-Electron Lasers
- Neurobiology and Insect Physiology Research
- Advanced Electrical Measurement Techniques
- Nuclear physics research studies
- Neutrino Physics Research
- Micro and Nano Robotics
- Modular Robots and Swarm Intelligence
- Migration, Aging, and Tourism Studies
- Advanced Frequency and Time Standards
- Superconducting Materials and Applications
- Obstructive Sleep Apnea Research
- Atomic and Molecular Physics
- Advanced Chemical Sensor Technologies
- Neuroscience of respiration and sleep
- Olfactory and Sensory Function Studies
- Cerebrospinal fluid and hydrocephalus
- Advancements in PLL and VCO Technologies
- Muon and positron interactions and applications
University of British Columbia
2002-2024
Brookhaven National Laboratory
1989-2010
Stony Brook University
1994-2010
State University of New York
2010
Using external actuation sources to navigate untethered drug-eluting microrobots in the bloodstream offers great promise improving selectivity of drug delivery, especially oncology, but current field forces are difficult maintain with enough strength inside human body (>70-centimeter-diameter range) achieve this operation. Here, we present an algorithm predict optimal patient position respect gravity during endovascular microrobot navigation. Magnetic resonance navigation, using magnetic...
Additional evidence for the rare kaon decay K+-->pi+nu(nu) has been found in a new data set with comparable sensitivity to previously reported result. One event was observed pion momentum region examined, 211<P<229 MeV/c, bringing total combined two. Including all taken, backgrounds were estimated contribute 0.15+/-0.05 events. The branching ratio is B(K+-->pi+nu(nu)) = 1.57(+1.75)(-0.82)x10(-10).
An event consistent with the signature expected for rare kaon decay ${K}^{+}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}\ensuremath{\nu}\overline{\ensuremath{\nu}}$ has been observed. In pion momentum region examined, $211<P<230\mathrm{MeV}/c$, backgrounds are estimated to contribute $0.08\ifmmode\pm\else\textpm\fi{}0.03$ events. If is due ${K}^{+}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}\ensuremath{\nu}\overline{\ensuremath{\nu}}$, branching ratio...
The half-life of $^{39}$Ar is measured using the DEAP-3600 detector located 2 km underground at SNOLAB. In 2016-2020, used a target mass (3269 $\pm$ 24) kg liquid argon distilled from atmosphere in direct-detection dark matter search. Such an also enables direct measurements isotope properties. decay dominant source triggers by two orders magnitude, ensuring high statistics and making well-suited for measuring this isotope's half-life. Use pulse-shape discrimination technique allows powerful...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOdorant Binding by a Pheromone Protein: Active Site Mapping Photoaffinity LabelingGehua Du, Chi-Shing Ng, and Glenn D. PrestwichCite this: Biochemistry 1994, 33, 16, 4812–4819Publication Date (Print):April 1, 1994Publication History Published online1 May 2002Published inissue 1 April 1994https://pubs.acs.org/doi/10.1021/bi00182a009https://doi.org/10.1021/bi00182a009research-articleACS PublicationsRequest reuse permissionsArticle...
We report the results of a search for decay ${K}^{+}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}\ensuremath{\nu}\overline{\ensuremath{\nu}}$ in kinematic region with ${\ensuremath{\pi}}^{+}$ momentum $140<P<195\mathrm{MeV}/c$ using data collected by E787 experiment at BNL. No events were observed. When combined our previous this region, one candidate event an expected background $1.22\ifmmode\pm\else\textpm\fi{}0.24$ 90% C.L. upper limit...
The first search for the decay K^+ -> pi^+ pi^0 nu nubar has been performed with E787 detector at BNL. Based on zero events observed in kinematical region defined by 90 MeV/c < P_{pi^+} 188 and 135 MeV E_{pi^0} 180 MeV, an upper limit B(K^+ nubar) 4.3 x 10^{-5} 90% confidence level is established.
A measurement of the decay K+ -> pi0 mu+ nu_mu gamma has been performed with E787 detector at Brookhaven National Laboratory. Forty events were observed in signal region background expectation (16.5 +- 2.7) events. The branching ratio was measured to be (1.58 0.46(stat.) 0.08(syst.)) x 10^{-5}} kinematic Eg >30 MeV and theta_{mu gamma} > 20degree, where is energy emitted photon angle between muon rest frame. results consistent theoretical predictions.
A description is given of Experiment E787 at Brookhaven National Laboratory, which designated to study the decay K/sup +/ pi +vv a sensitivity 2*10/sup -10/. The authors report on design and construction over 200 channels relatively low-cost solid-state waveform digitizers. These transient digitizers are capable detecting mu v/sub /e/sub /v/sub /v with 75% efficiency rejecting /sub decays level 10/sup -4/. distinguishing features 8-bit dynamic range, 500-MHz sampling, zero suppression fly,...
We have performed a search for the angular-momentum forbidden decay K+→π+γ with E787 detector at BNL. No events were observed in π+ kinematic region around 227MeV/c. An upper limit on branching ratio is determined to be 3.6×10−7 90% confidence level.Received 1 August 2001DOI:https://doi.org/10.1103/PhysRevD.65.052009©2002 American Physical Society
RATIONALE: Obstructive sleep apnea (OSA) is a common, treatable chronic condition that associated with adverse health, societal and economic consequences.Geography contributes to inequities in health care outcomes.However, no study has explored the impact of geography on OSA treatment outcomes.The objective was determine if CPAP adherence adults uncomplicated differed by rural versus urban residential address.METHODS: We recruited from respiratory homecare companies Alberta, Canada.Patients...