Results 81 to 90 of about 454,383 (296)

Three-dimensional topological solitons in PT-symmetric optical lattices [PDF]

open access: yes, 2016
We address the properties of fully three-dimensional solitons in complex parity-time (PT)-symmetric periodic lattices with focusing Kerr nonlinearity, and uncover that such lattices can stabilize both fundamental and vortex-carrying soliton states.
Hang, Chao   +3 more
core   +3 more sources

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

open access: yesFEBS 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   +13 more
wiley   +1 more source

Response of Global Ionospheric Currents to Solar Flares with Extreme Ultraviolet Late Phases

open access: yesThe Astrophysical Journal
It is known that solar flares can affect the current system of the middle- and low-latitude ionosphere. Most earlier studies have focused on such effects during their impulsive phases.
Xuanqing Liu   +7 more
doaj   +1 more source

GEOMETRIZED VACUUM PHYSICS. PART XI: GRAVITY AND LEVITATION

open access: yesAvances en Ciencias e Ingeniería
In this article the phenomenon of planetary gravity is considered as a result of a spatial-phase shift between two counter intravacuum flows, flowing top-down and bottom-up. These powerful intravacuum flows flow along coun-ter spirals wound on all radial
Mikhail Batanov-Gaukhman
doaj   +1 more source

Accurate nine-decade temperature-compensated logarithmic amplifier [PDF]

open access: yes, 1969
Transistor-driven temperature-stable amplifier with logarithmic operating characteristics permits presentation of the entire range of the reactor without range switching.
Bobis, J. P.   +2 more
core   +1 more source

Shock waves in superconducting cosmic strings: growth of current

open access: yes, 2012
Intrinsic equations of motion of superconducting cosmic string may admit solutions in the shock-wave form that implies discontinuity of the current term \chi. The hypersurface of discontinuity propagates at finite velocity determined by finite increment \
A. M. Anile   +4 more
core   +1 more source

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

open access: yesFEBS 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   +2 more
wiley   +1 more source

Stability of the toroidal magnetic field in stellar radiation zones

open access: yes, 2011
Understanding the stability of the magnetic field in radiation zones is of crucial importance for various processes in stellar interior like mixing, circulation and angular momentum transport.
Aleksandrov   +12 more
core   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS 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

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