Results 61 to 70 of about 264,735 (274)

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Comprehensive FR1(C) and FR3 Lower and Upper Mid-Band Propagation and Material Penetration Loss Measurements and Channel Models in Indoor Environment for 5G and 6G

IEEE Open Journal of the Communications Society
Wide bandwidth requirements for multi-Gbps communications have prompted the global telecommunications industry to consider new mid-band spectrum allocations in the 4–8 GHz FR1(C) and 7–24 GHz FR3 bands, above the crowded bands below 6 GHz ...
Dipankar Shakya, Mingjun Ying, Theodore S. Rappaport, Hitesh Poddar, Peijie Ma, Yanbo Wang, Idris Al-Wazani   +6 more
doaj   +1 more source

Role of resistivity gradient in laser-driven ion acceleration

Physical Review Special Topics. Accelerators and Beams, 2011
It was predicted that, when a fast electron beam with some angular spread is normally incident on a resistivity gradient, magnetic field generation can occur that can inhibit beam propagation [A. R. Bell et al., Phys. Rev.
L. A. Gizzi, S. Betti, E. Förster, D. Giulietti, S. Höfer, P. Köster, L. Labate, R. Lötzsch, A. P. L. Robinson, I. Uschmann   +9 more
doaj   +1 more source

High-energy quasi-monoenergetic proton beam from micro-tube targets driven by Laguerre–Gaussian lasers

New Journal of Physics, 2023
High-energy proton beams with low energy spread and angular divergence are highly valuable in various applications, such as proton therapy, ultrafast science, and nuclear physics.
S Jin, Y L Yao, B F Lei, G Y Chen, C T Zhou, S P Zhu, X T He, B Qiao   +7 more
doaj   +1 more source

A pulsed, mono-energetic and angular-selective UV photo-electron source for the commissioning of the KATRIN experiment [PDF]

, 2017
The KATRIN experiment aims to determine the neutrino mass scale with a sensitivity of 200 meV/c^2 (90% C.L.) by a precision measurement of the shape of the tritium $\beta$-spectrum in the endpoint region.
Beck, M., Beglarian, A., Behrens, J., Erhard, M., Groh, S., Hannen, V., Kraus, M., Ortjohann, H. -W., Ranitzsch, P. C. -O., Rest, O., Schlösser, K., Thümmler, T., Valerius, K., Weinheimer, C., Wierman, K., Wilkerson, J. F., Winzen, D., Zacher, M.   +17 more
core   +3 more sources

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

Pyrolytic graphite as a selective neutron filter [PDF]

Ядерна фізика та енергетика, 2006
The transmission of neutrons through pyrolytic graphite (PG) crystals, set at different angles with respect to incident beam, were calculated using an additive formula. A computer program HOPG was developed to provide the required calculation.
M. Adib, N. Habib, B. Fathalla
doaj  

Angular Spread Quantification of Multi-Antenna Vehicular Radio Communication Channels [PDF]

2018 IEEE Globecom Workshops (GC Wkshps), 2018
The deployment of multi-antenna systems with software defined reconfigurable beam patterns can potentially benefit vehicle-to-vehicle (V2V) communications by increasing the channel coherence time. This in turn necessitates an accurate characterization and modeling of the angular statistics of vehicular radio propagation environments. This work proposes
Ahmed, Abrar, Nawaz, Syed Junaid, Gulfam, Sardar Muhammad, Wyne, Shurjeel, Patwary, Mohammad N., Pervaiz, Haris   +5 more
openaire   +1 more source

SmallTalk: a novel small‐sized fusion tag for peptide expression and purification

FEBS Open Bio, EarlyView.
The SmallTalk fusion tag allows for the efficient expression and purification of soluble recombinant proteins or peptides in Escherichia coli. Testing with SmallTalk‐GFP confirmed that the proteins were soluble and folded correctly, while SmallTalk‐Bin1b maintained its antimicrobial activity against various bacterial isolates. This streamlined workflow
Atika Tariq, Nestor G. Casillas‐Vega, Alma Gomez‐Loredo, Xristo Zarate   +3 more
wiley   +1 more source

Comparison of 28 GHz UMi Street Canyon Measurements With Map-Based Hybrid Channel Model

IEEE Access
The map-based hybrid channel model is one of the candidates for managing stochastic components above millimeter waves. This model has been used in technical reports published by several well-known standardization organizations.
Gilbert Siy Ching, Hirokazu Yamakura, Yoto Emori, Yukiko Kishiki   +3 more
doaj   +1 more source