Results 41 to 50 of about 826,776 (211)

Switching Spike Plasticity Shapes ACE2 Engagement Across SARS‐CoV‐2 Variants

Advanced Science, EarlyView.
Conformational plasticity governs SARS‐CoV‐2 spike function and ACE2 recognition. Using high‐speed AFM and single‐molecule force spectroscopy, we analyzed the ancestral spike and nine variants, revealing progressive rigidification from Delta, variable plasticity in Omicron sublineages, and JN.1 compaction.
Sarah Stainer, Rong Zhu, Manuel Reithofer, Gerhard Stadlmayr, Katharina Stadlbauer, Panchika Prangkio, Christoph Rippel, Markus Hahn, Aniko Eva Kasztner, Stefanie Stohl, Petr Bednar, Daniel Ruzek, David Glück, Robert Tampé, Gordana Wozniak‐Knopp, Yoo Jin Oh, Miriam Klausberger, Peter Hinterdorfer   +17 more
wiley   +1 more source

Deep Synoptic Array Science: Discovery of the Host Galaxy of FRB 20220912A

The Astrophysical Journal Letters, 2023
We report the detection and interferometric localization of the repeating fast radio burst (FRB) source FRB 20220912A during commissioning observations with the Deep Synoptic Array (DSA-110).
Vikram Ravi, Morgan Catha, Ge Chen, Liam Connor, Jakob T. Faber, James W. Lamb, Gregg Hallinan, Charlie Harnach, Greg Hellbourg, Rick Hobbs, David Hodge, Mark Hodges, Casey Law, Paul Rasmussen, Kritti Sharma, Myles B. Sherman, Jun Shi, Dana Simard, Reynier Squillace, Sander Weinreb, David P. Woody, Nitika Yadlapalli, The Deep Synoptic Array team, Tomas Ahumada, Dillon Dong, Christoffer Fremling, Yuping Huang, Viraj Karambelkar, Jessie M. Miller   +28 more
doaj   +1 more source

Microfluidic Gratings for X‐Ray Phase Contrast Imaging

Advanced Science, EarlyView.
This work establishes a new protocol for the fabrication of X‐ray gratings that exploits the advantages of microfluidics and enables a more inexpensive, faster, and scalable production process. These X‐ray devices are fundamental for implementing X‐ray phase contrast imaging (XPCI) in laboratory and clinical settings, yet their costly and complex ...
Alessandro Rossi, Antonio Ferraro, Francesco Coccimiglio, Tiziana Ritacco, Alberto Astolfo, Michele Giocondo, Vincenzo Formoso, Raffaele Giuseppe Agostino, Francesco Iacoviello, Ioannis Papakonstantinou, Alessandro Olivo   +10 more
wiley   +1 more source

A Tandem TerraSAR-X Configuration for Single-Pass SAR Interferometry [PDF]

, 2004
TanDEM-X is a mission proposal for a TerraSAR-X add-on satellite to enable high-resolution single-pass SAR interferometry. The TanDEM-X mission has the goal of generating a global Digital Elevation Model (DEM) with an accuracy corresponding to the DTED-3
Werner, Marian, Hajnsek, Irena, Moreira, Alberto, Settelmeyer, Eckard, Ebner, Hermann, Hounam, David, Krieger, Gerhard, Riegger, Sebastian   +7 more
core  

CHIME/FRB Discovery and Localization of the Swift-observed FRB 20241228A

The Astrophysical Journal
On 2024 December 28, the Canadian Hydrogen Intensity Mapping Experiment (CHIME) FRB project detected the thus-far nonrepeating FRB 20241228A with a real-time signal-to-noise ratio of >50.
Alice P. Curtin, Shion Andrew, Sunil Simha, Alice Cai, Kenzie Nimmo, Shami Chatterjee, Amanda M. Cook, Fengqiu Adam Dong, Yuxin Dong, Tarraneh Eftekhari, Wen-fai Fong, Emmanuel Fonseca, Jason W. T. Hessels, Ronniy C. Joseph, Victoria Kaspi, Calvin Leung, Robert Main, Kiyoshi W. Masui, Ryan Mckinven, Daniele Michilli, Mason Ng, Ayush Pandhi, Aaron B. Pearlman, Mawson W. Sammons, Ketan R Sand, Paul Scholz, Vishwangi Shah, Kaitlyn Shin, Aaron Tohuvavohu   +28 more
doaj   +1 more source

Bioinspired Metastable Transient Peeling for Repeatable Rapid Release

Advanced Science, EarlyView.
Inspired by the explosive seed ejection of the squirting cucumber, this work introduces metastable transient peeling that temporally regulates stored interfacial energy release via a tunable energy barrier. A viscoelastic hemispherical gripper achieves 52 ms ultrafast, residue‐free release with 300 000‐cycle durability, enabling damage‐free handling of
Lvzhou Li, Qingyue Li, Yao Hu, Xu Dong, Xiangli Wen, Kai Zhu, Yaoyao Jiang, Yu Tian, Jianning Ding   +8 more
wiley   +1 more source

MULTIBASELINE POLARIMETRIC SAR INTERFEROMETRY FOREST HEIGHT INVERSION APPROACHES [PDF]

, 2011
Polarimetric SAR interferometry (Pol-InSAR) is a radar remote sensing technique that is sensitive to the vertical distribution of scattering processes in volumes.
Lee, Seung-Kuk, Hajnsek, Irena, Kugler, Florian, Papathanassiou, Konstantinos   +3 more
core  

Applications of the Irbene Single-Baseline Radio Interferometer

Galaxies
The Irbene single-baseline radio interferometer (ISBI), operated by the Ventspils International Radio Astronomy Centre (VIRAC), offers a rare and versatile configuration in modern radio astronomy.
Ivar Shmeld, Vladislavs Bezrukovs, Jānis Šteinbergs, Karina Šķirmante, Artis Aberfelds, Sergey A. Belov, Ross A. Burns, Dmitrii Y. Kolotkov, Valery M. Nakariakov, Dmitrijs Bezrukovs, Matīss Purviņš, Aija Kalniņa, Arturs Orbidans, Marcis Bleiders, Marina Konuhova   +14 more
doaj   +1 more source

Lab‐Scale Fabrication Process Selection for Soft Robotics: Benchmarking, Tradeoffs, and Guidelines for Formative Manufacturing of Soft Silicone Components

Advanced Intelligent Systems, EarlyView.
Fabrication shapes soft robot performance, but benchmarking data and selection guidelines remain scarce. We fabricate silicone actuators using two molding techniques and three mold types, characterizing them with cycle testing, microscopy, profilometry, and 3D imaging. Applying our lab‐scale, soft robotics‐specific fabrication evaluation criteria shows
Charlotte M. Folinus, Daniel Massimino, Cat Arase, Kaitlyn P. Becker   +3 more
wiley   +1 more source

Dosing PPARγ Activation With Light Using Fast Relaxing Photoswitches

Angewandte Chemie International Edition, EarlyView.
To achieve spatiotemporal control over PPARγ activity, we designed the fast‐relaxing photoswitchable agonist 6 that selectively activates PPARγ in its light‐induced Z‐state and relaxes within seconds (t1/2 47 s) to the inactive E‐state. This unique profile allowed light‐dosed receptor activation in in vitro settings, enabling biological studies on ...
Loris Knümann, Alba Rodriguez‐Paniagua, Martin Reynders, Silke Duensing‐Kropp, Oliver Thorn‐Seshold, Vasily Morozov, Julian A. Marschner, Daniel Merk   +7 more
wiley   +1 more source