Results 31 to 40 of about 127,912 (263)

EUV spectroscopy of highly charged xenon ions [PDF]

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2005
Abstract At the Berlin Electron Beam Ion Trap facility we investigated the radiation of highly charged xenon ions in the extreme ultraviolet wavelength range using a 2 m grazing incidence spectrometer. For Rb-like Xe17+ to Cu-like Xe25+ ions 37 individual lines have been registered in the range between 90 and 240 A and identified by performing atomic
Biedermann, C., Radtke, R., Fussmann, G., Schwob, J. L., Mandelbaum, P.   +4 more
openaire   +3 more sources

HIT web server: A hybrid method to improve electrostatic calculations for biomolecules

Computational and Structural Biotechnology Journal, 2022
The electrostatic features of highly charged biomolecules are crucial and challenging tasks in computational biophysics. The electrostatic calculations by traditional implicit solvent methods are efficient but have difficulties on highly charged ...
Shengjie Sun, Juan A. Lopez, Yixin Xie, Wenhan Guo, Dongfang Liu, Lin Li   +5 more
doaj   +1 more source

Towards an Intrinsic Doppler Correction for X-ray Spectroscopy of Stored Ions at CRYRING@ESR

Atoms, 2023
We report on a new experimental approach for the Doppler correction of X-rays emitted by heavy ions, using novel metallic magnetic calorimeter detectors which uniquely combine a high spectral resolution with a broad bandwidth acceptance.
Felix Martin Kröger, Günter Weber, Steffen Allgeier, Zoran Andelkovic, Sonja Bernitt, Alexander Borovik, Louis Duval, Andreas Fleischmann, Oliver Forstner, Marvin Friedrich, Jan Glorius, Alexandre Gumberidze, Christoph Hahn, Frank Herfurth, Daniel Hengstler, Marc Oliver Herdrich, Pierre-Michel Hillenbrand, Anton Kalinin, Markus Kiffer, Maximilian Kubullek, Patricia Kuntz, Michael Lestinsky, Bastian Löher, Esther Babette Menz, Tobias Over, Nikolaos Petridis, Philip Pfäfflein, Stefan Ringleb, Ragandeep Singh Sidhu, Uwe Spillmann, Sergiy Trotsenko, Andrzej Warczak, Binghui Zhu, Christian Enss, Thomas Stöhlker   +34 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Calculations of Electron Loss to Continuum in Collisions of Li- and Be-Like Uranium Ions with Nitrogen Targets

Atoms, 2020
Doubly differential cross sections for projectile ionization in fast collisions of few-electron uranium ions with the nitrogen target are calculated within the first order of the relativistic perturbation theory. A comparison with the recent measurements
Andrey I. Bondarev, Yury S. Kozhedub, Ilya I. Tupitsyn, Vladimir M. Shabaev, Günter Plunien   +4 more
doaj   +1 more source

The Role of Collision Ionization of K-Shell Ions in Nonequilibrium Plasmas Produced by the Action of Super Strong, Ultrashort PW-Class Laser Pulses on Micron-Scale Argon Clusters with Intensity up to 5 × 10²¹ W/cm²

Photonics, 2023
The generation of highly charged ions in laser plasmas is usually associated with collisional ionization processes that occur in electron–ion collisions. An alternative ionization channel caused by tunnel ionization in an optical field is also capable of
Igor Yu. Skobelev, Sergey N. Ryazantsev, Roman K. Kulikov, Maksim V. Sedov, Evgeny D. Filippov, Sergey A. Pikuz, Takafumi Asai, Masato Kanasaki, Tomoya Yamauchi, Satoshi Jinno, Masato Ota, Syunsuke Egashira, Kentaro Sakai, Takumi Minami, Yuki Abe, Atsushi Tokiyasu, Hideki Kohri, Yasuhiro Kuramitsu, Youichi Sakawa, Yasuhiro Miyasaka, Kotaro Kondo, Akira Kon, Akito Sagisaka, Koichi Ogura, Alexander S. Pirozhkov, Masaki Kando, Hiromitsu Kiriyama, Tatiana A. Pikuz, Yuji Fukuda   +28 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Periodic table for highly charged ions

Physical Review Research
Mendeleev's periodic table successfully groups atomic elements according to their chemical and spectroscopic properties. However, it becomes less sufficient in describing the electronic properties of highly charged ions (HCIs) in which many of the ...
Chunhai Lyu, Christoph H. Keitel, Zoltán Harman   +2 more
doaj   +1 more source

Limits to the Precision of Atomic Lifetime Measurements

Atoms
The mean lives of certain levels in atoms or not so highly charged ions have been measured with a precision on the order of 0.1%. This is better than most other atomic lifetime measurements, but is still much less precise than many measurements of other ...
Elmar Träbert
doaj   +1 more source

Systematic Observation of EUV Spectra from Highly Charged Lanthanide Ions in the Large Helical Device

Atoms, 2018
We have systematically observed extreme ultraviolet (EUV) spectra from highly charged ions of nine lanthanide elements with atomic numbers from 60–70 in optically thin plasmas produced in the Large Helical Device (LHD).
Chihiro Suzuki, Fumihiro Koike, Izumi Murakami, Naoki Tamura, Shigeru Sudo   +4 more
doaj   +1 more source