Results 121 to 130 of about 143,542 (285)

Active Vibration Control Performance Comparison Based on Middle Pedestal Stiffness Using a Mobility Model and the Narrowband Fx-LMS Technique

Vibration
Vibrations generated from equipment mounted on ships radiate into the water and affect covert operation capabilities. Accordingly, various studies are being conducted to reduce vibration transmitted from mounted equipment.
Anmok Jeong, Kyuchul Jung, Youngcheol Park, Junyeong Heo, Hakjun Lee   +4 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Optimised ‘hybrid’ scenario H-mode plasmas for W radiation control in JET with the Be/W wall

Nuclear Fusion
Screening of high- Z (W) impurities from the confined plasma by the temperature gradient at the plasma periphery of fusion-grade H-mode plasmas was demonstrated for the first time in JET with the Be/W wall (Field et al 2023 Nucl.
A.R. Field, C. Angioni, I.S. Carvalho, P. Carvalho, C.D. Challis, A. Chomiczewska, I.H. Coffey, D. Fajardo, L. Frasinetti, J.M. Fontdecaba, C. Giroud, J. Hobirk, A. Kappatou, D. Keeling, D.B. King, D. Kos, B. Labit, E. Lerche, E. Litherland-Smith, S. Menmuir, C. Olde, H. Sun, N. Vianello, S. Wiesen, JET Contributors, the EUROfusion Tokamak Exploitation Team   +25 more
doaj   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Qualitative effects of resistivity in JET-ILW Europed pedestal predictions

Nuclear Fusion
The effect of resistive MHD in the pedestal predictions for JET-ILW has been investigated, using the Europed workflow (Saarelma et al 2018 Plasma Phys. Control. Fusion 60 014042) with the resistive MHD stability code CASTOR (Kerner et al 1998 J.
A. Lafay-Labrosse, H. Nyström, L. Frassinetti, S. Saarelma, JET Contributors, The EUROfusion Tokamak Exploitation Team   +5 more
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Understanding the formation of a low-pressure pedestal in the presence of a strong internal transport barrier in DIII-D high βp plasmas

Nuclear Fusion
As a promising scenario for fusion reactors, the high poloidal-beta ( ${\beta _{\text{P}}}$ ) scenario is characterized by a strong large radius internal transport barrier (ITB), which significantly enhances the overall confinement quality and the ...
X.R. Zhang, X. Jian, Y.R. Zhu, Y.P. Zou, Z.Y. Li, Y.J. Zhou, L.Z. Liu, S. Zheng, Z.X. Wang, W. Chen, S.Y. Ding, A.M. Garofalo, V.S. Chan, G.Q. Li   +13 more
doaj   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Importance of on ETG stability, turbulence, and transport in NSTX

Nuclear Fusion
This study employs electron-scale gyrokinetic simulations to investigate the electron temperature gradient (ETG) driven instabilities, turbulence, and transport in the pedestal region of the National Spherical Torus Experiment, comparing non-lithiated ...
P.-Y. Li, D.R. Hatch, J.F. Parisi, M. Lampert, E.A. Belli, M. Kotschenreuther, S.M. Mahajan   +6 more
doaj   +1 more source

Methods to recover the narrow Dicke sub-Doppler feature in evacuated wall-coated cells without restrictions on cell size [PDF]

The hyperfine resonance observed in evacuated wall-coated cells with dimensions lambda/2 (lambda is the hyperfine resonance wavelength) consists of a narrow Dicke sub-Doppler linewidth feature, the spike, superimposed on a broad pedestal.
Robinson, H. G.
core   +1 more source