Results 41 to 50 of about 3,646,993 (304)

Serological Benefit of SARS‐CoV‐2 Vaccination Relative to Infection in Children With Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with acute lymphoblastic leukemia (ALL) are at risk of severe outcomes from SARS‐CoV‐2 (SCV2). In the post‐pandemic context, where most children have been infected with SCV2, there are limited data on whether vaccination remains beneficial in children with ALL.
Janna R. Shapiro, Freda Qi, Karen Colwill, Alina D. Dorogy, Ying Liu, Michelle Science, Anne‐Claude Gingras, James M. Rini, Sumit Gupta, Sarah Alexander, Shelly Bolotin, Tania H. Watts   +11 more
wiley   +1 more source

Neural networks as effective surrogate models of radio-frequency quadrupole particle accelerator simulations

Machine Learning: Science and Technology
Radio-frequency quadrupoles (RFQs) are multi-purpose linear particle accelerators that simultaneously bunch and accelerate charged particle beams. They are ubiquitous in accelerator physics, especially as injectors to higher-energy machines, owing to ...
Joshua Villarreal, Daniel Winklehner, Daniel Koser, Janet M Conrad   +3 more
doaj   +1 more source

Development of an optical imaging technique for particle number density

Journal of Fluid Science and Technology, 2018
Accurate measurements of particle number density along with particle diameters and velocities are strongly required both in academic and industrial fields.
Naohisa TAKAGAKI, Koji IWANO, Emil ILYASOV, Satoru KOMORI, Yoshiyuki SHIRAKAWA   +4 more
doaj   +1 more source

Quark Mass Matrices in the A_4 Model

, 2002
If the standard model of quark interactions is supplemented by a discrete A_4 symmetry (which may be relevant for the lepton sector), the spontaneous breaking of the electroweak gauge symmetry allows arbitrary quark masses, but all mixing angles are ...
ERNEST MA, Ma E., Particle Data Group
core   +1 more source

A particle-particle, particle-density algorithm for the calculation of electrostatic interactions of particles with slablike geometry [PDF]

The Journal of Chemical Physics, 2007
We present a fast and accurate method to calculate the electrostatic energy and forces of interacting particles with the boundary conditions appropriate to surfaces, i.e., periodic in the two directions parallel to the surface and free in the perpendicular direction.
Ghasemi, S. Alireza, Neelov, Alexey, Goedecker, Stefan   +2 more
openaire   +4 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

S_4 Flavor Symmetry Embedded into SU(3) and Lepton Masses and Mixing

, 2007
Based on an assumption that an S_4 flavor symmetry is embedded into SU(3), a lepton mass matrix model is investigated. A Frogatt-Nielsen type model is assumed, and the flavor structures of the masses and mixing are caused by VEVs of SU(2)_L-singlet ...
C. Hagedorn, Particle Data Group, Y. Koide, Y. Koide, Yoshio Koide   +4 more
core   +1 more source

Cluster Transformation Coefficients for Structure and Dynamics Calculations in n-Particle Systems: Atoms, Nuclei, and Quarks [PDF]

, 2002
The structure and dynamics of an n-particle system are described with coupled nonlinear Heisenberg's commutator equations where the nonlinear terms are generated by the two-body interaction that excites the reference vacuum via particle-particle and ...
Beiersdorfer P, Bouchard S, Brown G E, Crespo López-Urrutia J R, D Ursescu, de-Shalit A, Dobrowolsky A V, Federspiel F J, Fetter A L, Geiger P, Klaft I, L C Liu, Lane A M, M Tomaselli, Olmos de Leon V, Person H, Petrun'kin V A, Racah G, Rowe D J, S Fritzsche, Schneider S M, Seelig P, Shabaev V M, Shabaev V M, Sunergren P, T K hl, Tanihata I, Tomaselli M, Tomaselli M, Tomaselli M, Tomaselli M, Tomaselli M, Tomaselli M, Tomaselli M, Tomaselli M, Tomaselli M, Tomaselli M, W N rtersh user, Wigner E P   +38 more
core   +2 more sources

Particle Detectors

Physics Reports, 1981
AbstractThe principles of instruments used for detecting and identifying high energy particles are reviewed. Recent progress in techniques and materials is included. A few realizations of detector systems are described.
openaire   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source