Results 71 to 80 of about 534,861 (299)

Anti-Proton Evolution in Little Bangs and Big Bang

open access: yes, 2009
The abundances of anti-protons and protons are considered within momentum-integrated Boltzmann equations describing Little Bangs, i.e., fireballs created in relativistic heavy-ion collisions.
B. Kämpfer   +7 more
core   +1 more source

Simulation of neutron production in hadron-nucleus and nucleus-nucleus interactions in Geant4 [PDF]

open access: yes, 2018
Studying experimental data obtained at ITEP [1] on neutron production in interactions of protons with various nuclei in the energy range from 747 MeV up to 8.1 GeV, we have found that slow neutron spectra have scaling and asymptotic properties [2].
Galoyan, A., Ribon, A., Uzhinsky, V.
core   +2 more sources

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

open access: yesFEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon   +6 more
wiley   +1 more source

Proton therapy for isolated local regional recurrence of breast cancer after mastectomy alone

open access: yesFrontiers in Oncology, 2022
Purpose/ObjectivesTo assess adverse events (AEs) and disease-specific outcomes after proton therapy for isolated local-regional recurrence (LRR) of breast cancer after mastectomy without prior radiotherapy (RT).Materials/MethodsPatients were identified ...
Brady S. Laughlin   +13 more
doaj   +1 more source

Non-variable cosmologically distant gamma-ray emitters as an imprint of propagation of ultra-high-energy protons

open access: yes, 2011
The acceleration cites of ultra-high-energy (UHE) protons can be traced by the footprint left by these particles propagating through cosmic microwave background (CMB) radiation.
A. Yu. Prosekin   +24 more
core   +1 more source

On volume reflection of ultrarelativistic particles in single crystals [PDF]

open access: yes, 2006
The analytical description of the volume reflection of the charged ultrarelativistic particles in bent single crystals is considered. The relation describing the angle of volume reflection as a function of the transversal energy is obtained.
V. A. Maisheev   +2 more
core   +4 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

open access: yesFEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn   +4 more
wiley   +1 more source

New Insight on Damped Oscillating Regular Structures from “Effective” Proton Electromagnetic Form Factor Data

open access: yesAppliedMath
An objective existence of damped oscillation regular structures from the proton “effective” electromagnetic form factor data, appearing when these data are described by a two parametric Tomasi-Gustafsson-Rekalo function, is investigated. If the same data
Stanislav Dubnička   +3 more
doaj   +1 more source

Neutron spin polarization in strong magnetic fields

open access: yes, 2005
The effects of strong magnetic fields on the inner crust of neutron stars are investigated after taking into account the anomalous magnetic moments of nucleons.
Glendenning N. K.   +4 more
core   +3 more sources

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