Results 41 to 50 of about 1,526,367 (327)

Low Q^2 measurements of the proton form factor ratio $mu_p G_E / G_M$ [PDF]

open access: yes, 2011
We present an updated extraction of the proton electromagnetic form factor ratio, mu_p G_E/G_M, at low Q^2. The form factors are sensitive to the spatial distribution of the proton, and precise measurements can be used to constrain models of the proton ...
A. Beck   +88 more
core   +2 more sources

Long-term results of a phase II study of hypofractionated proton therapy for prostate cancer: moderate versus extreme hypofractionation

open access: yesRadiation Oncology, 2019
Background We performed a prospective phase II study to compare acute toxicity among five different hypofractionated schedules using proton therapy. This study was an exploratory analysis to investigate the secondary end-point of biochemical failure-free
Boram Ha   +13 more
doaj   +1 more source

Commissioning and quality assurance of a novel solution for respiratory-gated PBS proton therapy based on optical tracking of surface markers

open access: yesZeitschrift für Medizinische Physik, 2022
We present the commissioning and quality assurance of our clinical protocol for respiratory gating in pencil beam scanning proton therapy for cancer patients with moving targets.
Giovanni Fattori   +18 more
doaj   +1 more source

Predicting Proton-Air Cross Sections at sqrt s ~30 TeV, using Accelerator and Cosmic Ray Data

open access: yes, 1999
We use the high energy predictions of a QCD-inspired parameterization of all accelerator data on forward proton-proton and antiproton-proton scattering amplitudes, along with Glauber theory, to predict proton-air cross sections at energies near \sqrt s ...
Francis Halzen   +10 more
core   +3 more sources

Pencil‐beam scanning proton therapy for the treatment of glomus jugulare tumours

open access: yesJournal of Medical Radiation Sciences, 2022
Introduction Glomus jugulare tumours (GJT) are benign tumours that arise locally and destructively in the base of the skull and can be successfully treated with radiotherapy.
Jiří Kubeš   +13 more
doaj   +1 more source

Antiproton-Proton Channels in J/psi Decays

open access: yes, 2005
The recent measurements by the BES Collaboration of J/psi decays into a photon and a proton-antiproton pair indicate a strong enhancement at the proton-antiproton threshold not observed in the decays into a neutral pion and a proton-antiproton pair.
B. Loiseau   +3 more
core   +2 more sources

Constituent quark model for nuclear stopping in high energy nuclear collisions [PDF]

open access: yes, 1996
We study the nuclear stopping in high energy nuclear collisions using the constituent quark model. It is assumed that wounded nucleons with different number of interacted quarks hadronize in different ways.
Choi, T. K., Maruyama, M., Takagi, F.
core   +3 more sources

Parity Violation in Proton-Proton Scattering

open access: yes, 1997
Measurements of parity-violating longitudinal analyzing powers (normalized asymmetries) in polarized proton-proton scattering provide a unique window on the interplay between the weak and strong interactions between and within hadrons. Several new proton-
A.A. Green   +61 more
core   +1 more source

On proton-proton bremsstrahlung [PDF]

open access: yesPhysics Letters B, 1967
Abstract The cross section for proton-proton bremsstrahlung has been calculated for soft photons in a model independent way. Comparison with experiments has been made.
openaire   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS 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   +2 more
wiley   +1 more source

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