Results 101 to 110 of about 2,852,312 (350)

Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells

FEBS Letters, EarlyView.
Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López, Özge Yilmaz Ardicli, Mübeccel Akdis   +2 more
wiley   +1 more source

Analysis of Multicarrier PWM techniques for Photovoltaic fed Cascaded H-Bridge Multilevel Inverter [PDF]

Journal of Electrical and Electronics Engineering, 2017
Recently multilevel inverter technology emerging as an important alternative in the field of high power, medium voltage energy control. The various topologies for multilevel inverters such as diode-clamped, flying capacitor and cascaded H-bridge have ...
VENKATRAMAN Thiyagarajan, PERIYASAMY Somasundaram   +1 more
doaj  

Probing vacuum birefringence by phase-contrast Fourier imaging under fields of high-intensity lasers

, 2011
In vacuum high-intensity lasers can cause photon-photon interaction via the process of virtual vacuum polarization which may be measured by the phase velocity shift of photons across intense fields.
A. Piazza Di, A. Yariv, A.E. Siegman, A.N. Luiten, B. King, B. Marx, B. Tollis De, B. Tollis De, C. Amsler, D. Habs, E. Zavattini, G.M. Shore, G.V. Dunne, J. Schwinger, J.M. Maldacena, J.W. Goodman, K. Homma, N.B. Narozhny, N.B. Narozhnyi, N.B. Norozhny, O. Aharony, R. Karplus, R. Schützhold, T. Heinzl, T. Tajima, V. Weisskopf, V.I. Ritus, V.N. Baier, W. Dittrich, W. Heisenberg   +29 more
core   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Design, fabrication and performance analysis of TTD structures for S-band active phased array RF beamforming networks

MANAS: Journal of Engineering, 2019
In this study an eight-channel active analog beamforming structure is designed and developed in subsystems by using a Applied Wave Research (AWR) simulation program. This structure works in S-band and contains true-time-delay (TTD) systems.
Ahmet Hastürk, Nursel Akçam, Tayfun Okan   +2 more
doaj  

Large phase modulation of THz wave via an enhanced resonant active HEMT metasurface

Nanophotonics, 2018
Terahertz (THz) science and technology promise unique applications in high-speed communications, high-accuracy imaging, and so on. To keep up with the demand for THz systems, THz dynamic devices should feature large phase shift modulation and high speed.
Zhang Yaxin, Zhao Yuncheng, Liang Shixiong, Zhang Bo, Wang Lan, Zhou Tianchi, Kou Wei, Lan Feng, Zeng Hongxin, Han Jiaguang, Feng Zhihong, Chen Qin, Mazumder Pinaki, Yang Ziqiang   +13 more
doaj   +1 more source

Heterodyne Angle Deviation Interferometry in Vibration and Bubble Measurements

Applied Sciences, 2016
We proposed heterodyne angle deviation interferometry (HADI) for angle deviation measurements. The phase shift of an angular sensor (which can be a metal film or a surface plasmon resonance (SPR) prism) is proportional to the deviation angle of the test ...
Ming-Hung Chiu, Jia-Ze Shen, Jian-Ming Huang   +2 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source