Results 21 to 30 of about 199,926 (265)

Atomic and Molecular Processes at Solid Surfaces [PDF]

Journal of Colloid and Interface Science, 1977
Abstract Development of new techniques over the past 15 years permits the investigation of the structure, the composition, and reactivity of solid surfaces on the atomic scale. Our present knowledge of the structure of clean surfaces and of adsorbed monolayers as studied by low-energy electron diffraction is reviewed. Surface crystallography provides
openaire   +2 more sources

Theoretical investigation of transition data of astrophysical importance in neutral sulphur

Astronomy & Astrophysics
Accurate and comprehensive atomic data are essential for the modelling of stellar spectra. Uncertainties in the oscillator strengths of specific lines used for abundance analyses directly translate into uncertainties in the derived elemental abundances ...
Li W., Amarsi A. M., Jönsson P.
doaj   +1 more source

On mutual neutralization process in collisions of magnesium with hydrogen isotopes

Physics of Complex Systems, 2023
Cross sections for mutual neutralization processes in magnesium-deuterium collisions are calculated in the collision energy range 0.001–100 eV by the probability current method.
Ярослав Владимирович Воронов, Андрей Константинович Беляев   +1 more
doaj   +1 more source

Ionization equilibrium of nitrogen under kappa electron distributions

Astronomy & Astrophysics
Non-Maxwellian electron energy distributions, such as kappa distributions, have been proposed to explain discrepancies in observed astrophysical plasmas. We employed the coronal approximation to study the level populations of ionized nitrogen under kappa
Song Yunliang, Li Bowen, Chen Ximeng
doaj   +1 more source

Ab Initio Determination of Atomic Structure and Stark Broadening Parameters: Pb IV and Recent Results

Open Astronomy, 2011
We present a review of our previous ab initio calculations of Stark broadening parameters using semi-classical perturbation method for the calculation of Stark widths and shifts, and the SUPERSTRUCURE (SST) code for the determination of atomic structure.
Hamdi R., Nessib N. Ben, Dimitrijević M. S., Sahal-Bréchot S.   +3 more
doaj   +1 more source

Calculated oscillator strengths and transition probabilities of singly ionised nickel (Ni II)

Astronomy & Astrophysics
Aims. This work reports calculated transition probabilities for spectral lines of singly ionised nickel (Ni II) incorporating newly determined experimental energy levels, addressing critical gaps in atomic data required for astrophysical spectroscopy and
Clear Christian P., Uylings Peter, Raassen Ton   +2 more
doaj   +1 more source

Electron energy-loss spectroscopy of autoionizing states of zinc [PDF]

Serbian Astronomical Journal, 2004
Autoionizing energy-loss spectra of Zn from 10.8 to 12.5 eV, for incident electron energies between 20 and 100 eV, have been recorded at scattering angles from 0° to 10°.
Predojević B., Šević Dragutin M., Pejčev Vladimir M., Marinković Bratislav P., Filipović Dušan M.   +4 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

The Application of the Cut-Off Coulomb Model Potential for the Calculation of Bound-Bound State Transitions

Atoms, 2018
In this contribution, we present results of bound state transition modeling using the cut-off Coulomb model potential. The cut-off Coulomb potential has proven itself as a model potential for the dense hydrogen plasma.
Nenad M. Sakan, Vladimir A. Srećković, Zoran J. Simić, Milan S. Dimitrijević   +3 more
doaj   +1 more source