Results 41 to 50 of about 802,471 (226)
Dilepton photoproduction on a deuteron target
Physics Letters B, 2019 We investigate the sensitivity of the cross section for lepton pair production off a deuteron target, γd→l+l−d, to the deuteron charge radius. We show that for small momentum transfers the Bethe-Heitler process dominates, and that it is sensitive to the ...
Carl E. Carlson +2 more
doaj +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Study the differential Mott Scattering cross section and screening parameters of aluminum [PDF]
Kirkuk Journal of Science, 2017 In the present paper , we have tabulate the screening parametersη_(screening ) and the differential cross section of Mott scattering〖dσ〗_Mott/〖dσ〗_Rutherford by Aluminum nucleus in the energy range(10-0.005)MeV and angles by employing Mackinely ...
Sabah Mahmoud Aman Allah
doaj +1 more source
Discovery and cross-section measurement of neutron-rich isotopes in the element range from neodymium to platinum with the FRS [PDF]
, 2011 :Using the high-resolution performance of the fragment separator FRS at GSI we have discovered 60 new neutron-rich isotopes in the atomic number range of 60⩽Z⩽78.
J. Kurcewicz +48 more
semanticscholar +1 more source
molscat: A program for non-reactive quantum scattering calculations on atomic and molecular collisions [PDF]
Computer Physics Communications, 2018 molscat is a general-purpose program for quantum-mechanical calculations on nonreactive atom– atom, atom–molecule and molecule–molecule collisions. It constructs the coupled-channel equations of atomic and molecular scattering theory, and solves them ...
J. Hutson, C. L. Le Sueur
semanticscholar +1 more source
Cross-section of the photoeffect averaged over the atomic electrons
Ядерна фізика та енергетика, 2016 Simple approximate method for calculation of the cross sections of the photoeffect averaged over all atomic electrons is suggested. This method is based on the statistical Thomas - Fermi model with a new additional assumption.
S. N. Fedotkin
doaj
Atomic (p,n)-threshold cross sections
Physics Letters B, 1981 Abstract The (p,n)-threshold cross section is calculated for a light atom wherein the role of an active K-shell electron is included a priori. We find that the usual nuclear threshold law is covered asymptotically well above threshold on the atomic scale.
openaire +1 more source
Tikrit Journal of Pure Science, 2018 In the present research work, we tableted the ratio of Mott to Rutherford cross section ( ), for Iron and Silver atoms by employing Mckinley - Fashbach equation , in the range of incident electron energy (50KeV-10MeV), by adopting the equations used in
Muneer Ramadan Badah +1 more
doaj +1 more source