A5088687944- Black Holes and Theoretical Physics
- Particle physics theoretical and experimental studies
- Cosmology and Gravitation Theories
- Quantum Chromodynamics and Particle Interactions
- Noncommutative and Quantum Gravity Theories
- Muscle activation and electromyography studies
- Sports Performance and Training
- Sports injuries and prevention
- Advanced Topics in Algebra
- Algebraic structures and combinatorial models
- Nonlinear Waves and Solitons
- Protein Degradation and Inhibitors
- Musculoskeletal pain and rehabilitation
- Computational Drug Discovery Methods
- Quantum Mechanics and Non-Hermitian Physics
- Transcranial Magnetic Stimulation Studies
- Homotopy and Cohomology in Algebraic Topology
- Balance, Gait, and Falls Prevention
- Protein Structure and Dynamics
- Algebraic and Geometric Analysis
- Motor Control and Adaptation
- Muscle metabolism and nutrition
- Mathematics and Applications
- Geophysics and Gravity Measurements
- Polynomial and algebraic computation
Western Washington University
2011-2025
University of Georgia
2016-2023
Rensselaer Polytechnic Institute
2020-2021
Albion (United States)
2017
Clearfield (United States)
2017
Carbohydrate Competence Center
2017
University of California, Los Angeles
1989-2015
Argonne National Laboratory
1999-2002
Stony Brook University
1996-1999
State University of New York
1996-1999
We provide an action for self-dual Yang-Mills theory which is a simple truncation of the usual action. Only vertices that violate helicity conservation maximally are included. One-loop amplitudes in then follow as subset ones. In light-cone gauges this almost identical to previously proposed actions, but formulation vanishing all higher-loop obvious; explicit perturbative $S$-matrix known. Similar results apply gravity.
We present a conjecture for the n-gluon one-loop amplitudes with maximal helicity violation. The emerges from powerful requirement that have correct behavior in collinear limits of external momenta. One implication is corresponding where three or more gluon legs are replaced by photons vanish n>4.
Transcranial magnetic stimulation (TMS) of the motor cortex excites limb muscles contralateral side body. Reports poorly defined, or a complete lack systematic excitatory responses soleus motoneurons compared with those tibialis anterior (TA) has led to proposal that while all ankle flexor receive strong corticomotoneuronal connections, very few do. In addition, connections these are weak. The nature onto two motoneuron pools was re-evaluated in following experiments. leg area left...
Joint position sense (JPS) is a key neuromuscular factor for developing and maintaining control of muscles around joint. It important when performing specialized tasks, especially at the shoulder. No researchers have studied how Kinesio Tape (KT) application affects JPS.To investigate effects KT no tape on shoulder JPS increasing elevations in athletes.Cross-sectional study.University laboratory.A total 27 healthy athletes who did not participate overhead sports (age = 20.44 ± 1.05 years,...
The effect of tissue fixation on succinate dehydrogenase and cytochrome oxidase activity in single motoneurons the rat was demonstrated using a computer image processing system. Inhibition enzyme by chemical variable, with some being affected more than others. It concluded that quantification enzymatic chemically fixed provides an imprecise estimate activities found fresh-frozen tissues.
Skp1 is a conserved protein linking cullin-1 to F-box proteins in SCF (Skp1/Cullin-1/F-box protein) E3 ubiquitin ligases, which modify substrates with polyubiquitin chains that typically target them for 26S proteasome-mediated degradation. In Dictyostelium (a social amoeba), Toxoplasma gondii (the agent human toxoplasmosis), and other protists, regulated by unique pentasaccharide attached hydroxylated Pro-143 within its C-terminal F-box–binding domain. Prolyl hydroxylation of contributes...
The effects of long COVID-19 on balance and fall risk in older adults are unknown. This study aimed to explore the relationship between confidence/fall risk, as assessed by Activities-Specific Balance Confidence Scale Falls Efficacy Scale-International, status adults. confidence concern falling (≥60 years) with (long-haulers, n = 30) compared who experienced but not (non-long-haulers, 60) (controls) self-reported never having (n 52). Participants gave informed consent completed...
Manifestly Lorentz covariant Feynman rules are given in terms of a "scalar" field for each helicity, dramatically simplifying the calculation amplitudes with massless particles. The spinor helicity formalism is properly identified as null complex spacelike (not lightlike) gauge, where two external momenta define reference frame. Usually this gauge applied only to line factors; we extend method vertices and propagators by modifying action itself using lightcone methods.
Soleus Hoffman-reflex (H-reflex) gain was compared at the same background level of electromyographic activity across lying, natural standing, and tandem stance postures, in 12 young 16 elderly adults. When to a lying posture, adults significantly depressed soleus H-reflex when standing (19% decrease) position (30% decrease; p < .0125 for both positions). For adults, there no significant decrease while naturally, but 28% performing (p .0125). The data indicate that, although mild motor...
To determine whether the adaptations in myosin heavy chain (MHC) isoform expression after functional overload (FO) are accompanied by commensurate protein isoforms responsible for relaxation [sarco(endo)plasmic reticulum (SR) Ca(2+)-adenosinetriphosphatase (SERCA) and phospholamban (PHL)] single muscle fibers, of MHC SERCA presence or absence PHL were determined cat plantaris fibers 3 mo FO. In control relative composition was 23% type I, 21% IIa, 56% IIb. FO resulted a shift toward slower...
The general correlator of composite operators $N=4$ supersymmetric gauge field theory is divergent. We introduce a means for renormalizing these correlators by adding boundary on the AdS space correcting divergences. Such renormalizations are not equivalent to standard normal ordering current algebras in two dimensions. contain contact terms that contribute OPE; we relate them diagrammatically correlation functions compound dual multi-particle states.
Background Creatine supplementation is recommended as an ergogenic aid to improve repeated sprint cycling performance. Furthermore, creatine uptake increased in the presence of electrolytes. Prior research examining effect a creatine-electrolyte (CE) supplement on performance, however, did not show post-supplementation improvement. The purpose this double blind randomized control study was investigate six-week CE intervention overall and peak mean power output during sprints with recovery...
Soleus Hoffmann-reflex (H-reflex) modulation during walking was examined in 7 young and 13 elderly adults. H-reflex size measured 16 equal time divisions (phases) of the step cycle. In both groups, H reflex minimal at heel contact, rose to a maximum shortly after midstance, decreased rapidly as toe-off neared, then swing. There significant interaction between age group cycle phase (p < .05). During midstance walking, participants had smaller two phases .05), despite no difference groups...