Results 71 to 80 of about 242,490 (308)

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Phosphoinositides and inositol phosphates as molecular glues

FEBS Letters, EarlyView.
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry, Alexander J. Cutright, Mong Na Claire Loi, Jessica Martin, Joseph W. Gilligan, Jakub N. Kubina, Michael J. Arambula, Susanna Tanada Palmu, Daniella Zhou, Raymond D. Blind   +9 more
wiley   +1 more source

Infrared transparent frequency selective surface based on metallic meshes

AIP Advances, 2014
This paper presents an infrared transparent frequency selective surface (ITFSS) based on metallic meshes. In this ITFSS structure, periodic cross-slot units are integrated on square metallic meshes empowered by coating and UV-lithography.
Miao Yu, Nianxi Xu, Hai Liu, Jinsong Gao
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

"Reconfigurable Plasma Frequency Selective Surface "

Proceedings of the 2025 International Symposium on Electromagnetic Theory - URSI EMTS 2025
This paper presents single- and double-layer reconfigurable frequency selective surfaces (FSS) for high-power microwave (HPM) shielding, utilizing plasma as an active element. Unlike conventional FSS, plasma-based design enables tunable filtering by adjusting plasma density or shape, reducing the need for extensive structural modifications.
Varikuntla, Krushna Kanth; id_orcid 0000-0002-5749-9530, Abbasi, Muhammad Ali Babar; id_orcid 0000-0002-1283-4614, Yurduseven, Okan; id_orcid 0000-0002-0242-3029   +2 more
openaire   +2 more sources

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Pulsed Laser Micro Polishing: Surface Prediction Model [PDF]

, 2011
This project is focused on developing physics-based models to predict the outcome of pulsed laser micro polishing (PL P). Perry et al. have modeled PL P as oscillations of capillary waves with damping resulting from the forces of surface tension and ...
Li, Xiaochun, Ma, Chao, Duffie, Neil A., Pfefferkorn, Frank E., Vadali, Madhu   +4 more
core   +1 more source

Optimized frequency selective surface for the design of magnetic type thin broadband radio absorbers [PDF]

, 2017
A novel frequency selective surface for expansion of operating frequency range of magnetic-type radio absorbers was elaborated. Frequency selective surface represents an array of flat electrically conductive elements deposited on the polyethylene ...
Kazantsev, Yuri Nikolaevich, N.E. Kazantseva, Vilčáková, J., Kazantsev, Yu., Yu.N. Kazantsev, Kazantseva, N., V. Babayan, J. Vilčáková, Vilčáková, Jarmila, R. Moučka, Babayan, Vladimir Artur, Kazantseva, Natalia E., Moučka, R., Babayan, V., Moučka, Robert   +14 more
core   +1 more source

Textile Frequency Selective Surface

IEEE Microwave and Wireless Components Letters, 2017
Frequency selective surfaces (FSSs) are ubiquitous on rigid substrates and increasingly on flexible polymeric substrates. Here, we developed a FSS on a textile which is neither rigid nor smooth. We fabricate a textile capable of rejecting the millimeter-wave radiation in a narrowband, while retaining desirable textile properties such as flexibility and
Michael Ghebrebrhan, Francisco Aranda, Gary Walsh, David Ziegler, Stephen Giardini, Joel Carlson, Brian Kimball, Diane Steeves, Zhiyu Xia, Shiran Yu, Edward Kingsley, Ramaswamy Nagarajan, Jojit Torcedo, Richard Williams, Andrew Gatesman   +14 more
openaire   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source