Results 31 to 40 of about 2,605 (250)

Strong-field control of the dissociative ionization of N2O with near-single-cycle pulses

New Journal of Physics, 2014
The dissociative ionization of N _2 O by near-single-cycle laser pulses is studied using phase-tagged ion–ion coincidence momentum imaging. Carrier–envelope phase (CEP) dependences are observed in the absolute ion yields and the emission direction of ...
M Kübel, A S Alnaser, B Bergues, T Pischke, J Schmidt, Y Deng, C Jendrzejewski, J Ullrich, G G Paulus, A M Azzeer, U Kleineberg, R Moshammer, M F Kling   +12 more
doaj   +1 more source

Dissociation-ionization and ionization-dissociation by multiphoton absorption of acetaldehyde at 266 and 355 nm. Dissociation pathways

Revista Mexicana de Física, 2016
The experimental results from the interaction of a sample of acetaldehyde (CH$_3$ CHO) with laser radiation at intensities between 10$^9$ and 10$^{11}$~Wcm$^{-2}$ and wavelengths of 266 and 355 nm are reported. As a result of multiple photon absorption, cations from ionization-dissociation (I-D) or dissociation-ionization (D-I) processes, were detected
J.C. Poveda, I. Álvarez, A. Guerrero-Tapia, C. Cisneros   +3 more
openaire   +2 more sources

Dissociative ionization cross-sections and the rate coefficients of H2S, OCS, LiH, and SiC

Astronomy & Astrophysics
Context. Electron-molecule and positron-molecule interactions play a major role in the interstellar medium. Although several inelastic channels have been studied in the literature, dissociative ionization studies of molecules are scarce. Aims.
Shanmugasundaram Suriyaprasanth, Dharmalingam Geetha, Graves Vincent, Gupta Dhanoj   +3 more
doaj   +1 more source

Observation of Direct Dissociative Ionization in Molecular Hydrogen [PDF]

Physical Review Letters, 2001
Physical Review ...
Bakker, B.L.G., Parker, D.H., van der Zande, W.J.   +2 more
openaire   +2 more sources

Third order effect of postionization population redistribution in strong field

Physical Review Research, 2021
In strong field ionization, the pump pulse not only photoionizes the molecule, but also drives efficient population exchanges between its ionic ground and excited states.
Xiangxu Mu, Ming Zhang, Hanwei Yang, Min Li, Keyu Guo, Zijian Lü, Jiechao Feng, Haitan Xu, Song Bin Zhang, Zheng Li   +9 more
doaj   +1 more source

Single-photon induced symmetry breaking of the electron localization and photoelectron directional emission in the dissociative ionization of H2

New Journal of Physics, 2022
By numerically solving the non-Born–Oppenheimer time-dependent Schrödinger equation of H _2 exposed to an isolated EUV laser pulse, we demonstrate the photoionization associated with the 2 sσ _g and 3 pσ _u dissociative states of ${\mathrm{H}}_{2}^{+}$ .
Jun-Ping Wang, Zhao-Han Zhang, Feng He
doaj   +1 more source

On the Electron-Induced Reactions of (CH₃)AuP(CH₃)₃: A Combined UHV Surface Science and Gas-Phase Study

Nanomaterials, 2022
Focused-electron-beam-induced deposition (FEBID) is a powerful nanopatterning technique where electrons trigger the local dissociation of precursor molecules, leaving a deposit of non-volatile dissociation products.
Ali Kamali, Elif Bilgilisoy, Alexander Wolfram, Thomas Xaver Gentner, Gerd Ballmann, Sjoerd Harder, Hubertus Marbach, Oddur Ingólfsson   +7 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Time‐restricted feeding prior to Mycobacterium tuberculosis infection reduces tissue CD4+ T cells with limited impact on bacterial clearance

FEBS Open Bio, EarlyView.
Time‐restricted feeding (TRF) in mice increased liver fatty acid oxidation and decreased fatty acid biosynthesis. These alterations persisted when TRF was discontinued and the host was infected with Mycobacterium tuberculosis. Pre‐exposure to TRF did not alter tissue (lung and spleen) mycobacterial burden but significantly reduced CD3+ T cells in lungs
Ashish Gupta, Nidhi Yadav, Subhasmita Das, R. Rajendra Kumar Reddy, Nupur Sharma, Amol Ratnakar Suryawanshi, Jaswinder Singh Maras, Ranjan Kumar Nanda   +7 more
wiley   +1 more source

Importin 7 mediates the nuclear import of HIV‐1 integrase via a specific interacting interface

FEBS Open Bio, EarlyView.
HIV‐1 integrase enables viral DNA integration into the host genome. By binding to the core domain of the host protein Importin 7 via its C‐terminal domain, the integrase is transported across the nuclear membrane into the nucleus, where integration of the viral genome into host DNA takes place. This translocation is a critical step for subsequent viral
Juana Bana, Avigail Yariv, Tal Oppenheim, Hadar Amartely, Dana Reichmann, Oded Livnah   +5 more
wiley   +1 more source