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Jan 7, 2025 | 
academic.oup.com | Deutsches Elektronen-Synchrotron DESY
PDF Split View Sofia Mortensen, Stanislava Kuncová, Justin D Lormand, Tanner M Myers, Soo-Kyoung Kim, Vincent T Lee, Wade C Winkler, Holger Sondermann, Structural and bioinformatics analyses identify deoxydinucleotide-specific nucleases and their association with genomic islands in gram-positive bacteria, Nucleic Acids Research, Volume 53, Issue 1, 13 January 2025, gkae1235, https://doi.org/10.1093/nar/gkae1235 Close Introduction Nucleic acid cleavage is a vital process in cellular physiology...
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Nov 27, 2024 | 
xpresschronicle.com | Deutsches Elektronen-Synchrotron DESY
Scientists made a major advancement in X-ray science by creating high-power attosecond hard X-ray pulses with megahertz repetition rates, allowing for ultrafast electron dynamics study and atomic-level non-destructive measurements.
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Nov 27, 2024 | 
scitechdaily.com | Deutsches Elektronen-Synchrotron DESY
Scientists at European XFEL and DESY produce high-power attosecond X-ray pulses at megahertz repetition rates. With the help of special beam optics relativistic electrons (blue cloud) are strongly compressed (bright line in the center). This leads to a very bright, high-power X-ray pulse on the attosecond timescale.
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Nov 17, 2024 | 
onlinelibrary.wiley.com | de Wijn |La Trobe |European XFEL |Deutsches Elektronen-Synchrotron DESY
Serial femtosecond crystallography (SFX) (Barends et al., 2022; Spence, 2017; Chapman et al., 2011) has emerged as a critical new tool for determining macromolecular structures using small crystals at X-ray free-electron laser (XFEL) sources (Pellegrini, 2020; Decking et al., 2020; Milne et al., 2017; Kim & Yoon, 2009; Ko et al., 2017). A major factor enabling the success of SFX experiments is the sample delivery.
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Nov 8, 2024 | 
biorxiv.org | Alisia Fadini |Thomas Lane |Deutsches Elektronen-Synchrotron DESY |Virginia Apostolopoulou
AbstractAdvances in structural biology increasingly focus on uncovering protein dynamics and transient or weak macromolecular complexes. Such studies require modeling of low-occupancy species, for instance time-evolving intermediates and bound ligands. In protein crystallography, difference maps that compare paired perturbed and reference datasets are a powerful way to identify and aid modeling of low-occupancy species.
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Oct 11, 2024 | 
onlinelibrary.wiley.com | Deutsches Elektronen-Synchrotron DESY |European XFEL |Paul Scherrer Institut
JOURNAL OF SYNCHROTRON RADIATION ISSN: 1600-5775 Volume 31| Part 6| November 2024| Foreword to the special virtual issue dedicated to the proceedings of the PhotonMEADOW2023 Joint Workshop Elke Plönjes,a* Jan Grünert,b Pavle Juranić,c Kai Tiedtkea and Marco Zangrandod,e aDeutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany, bEuropean XFEL, Holzkoppel 4, 22869 Schenefeld, Germany, cSwissFEL, Paul Scherrer Institut, 5232 Villigen, Switzerland, dIstituto Officina dei...
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Jul 17, 2024 | 
link.aps.org | Hyeonseok Seong |Deutsches Elektronen-Synchrotron DESY |Chen Sun |Los Alamos
We identify a new resonance, axion magnetic resonance, that can greatly enhance the conversion rate between axions and photons. A series of axion search experiments rely on converting them into photons inside a constant magnetic field background. A common bottleneck of such experiments is the conversion amplitude being suppressed by the axion mass when ma≳10−4 eV.
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Jun 20, 2024 | 
onlinelibrary.wiley.com | Institut für Physik |Johannes Gutenberg-Universität Mainz |Deutsches Elektronen-Synchrotron DESY
Imaging bandpass filters play an important role in photoelectron spectroscopy. Such filters can transport either real-space images, as studied in detail by Tonner (1990), or momentum-space images, as pioneered by Krömker et al. (2008). The latter family of instruments established a new type of angle-resolved photoelectron spectroscopy (ARPES) called momentum microscopy.
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Jun 5, 2024 | 
onlinelibrary.wiley.com | European XFEL |Deutsches Elektronen-Synchrotron DESY
Hard X-ray operation of X-ray gas monitors at the European XFEL Theophilos Maltezopoulos,a* Frank Brinker,b Florian Dietrich,a Wolfgang Freund,a Jan Grünert,a Ulf Fini Jastrow,b Naresh Kujala,a Joakim Laksman,a Jia Liu,a Kai Tiedtkeb and Thomas Tschentschera aEuropean XFEL, Holzkoppel 4, 22869 Schenefeld, Germany, and bDeutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany*Correspondence e-mail: [email protected] Edited by P.
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May 17, 2024 | 
onlinelibrary.wiley.com | Deutsches Elektronen-Synchrotron DESY
Reconstructing the reflectivity of liquid surfaces from grazing incidence X-ray off-specular scattering data Chen Shen,a* Honghu Zhangb and Benjamin M. Ockob* aDeutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany, and bNational Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973, USA*Correspondence e-mail: [email protected], [email protected] Edited by J.
