Results 111 to 120 of about 1,396,441 (399)

The thioredoxin‐like and one glutaredoxin domain are required to rescue the iron‐starvation phenotype of HeLa GLRX3 knock out cells

open access: yesFEBS Letters, EarlyView.
Glutaredoxin (Grx) 3 proteins contain a thioredoxin domain and one to three class II Grx domains. These proteins play a crucial role in iron homeostasis in eukaryotic cells. In human Grx3, at least one of the two Grx domains, together with the thioredoxin domain, is essential for its function in iron metabolism.
Laura Magdalena Jordt   +4 more
wiley   +1 more source

Current-driven magnetization reversal and spin-wave excitations in Co /Cu /Co pillars [PDF]

open access: yesPhysical Review Letters, 1999
Using thin film pillars approximately 100 nm in diameter, containing two Co layers of different thicknesses separated by a Cu spacer, we examine the process by which the scattering from the ferromagnetic layers of spin-polarized currents flowing ...
J. Katine   +4 more
semanticscholar   +1 more source

Separating Probability and Reversal Learning in a Novel Probabilistic Reversal Learning Task for Mice

open access: yesFrontiers in Behavioral Neuroscience, 2020
The exploration/exploitation tradeoff – pursuing a known reward vs. sampling from lesser known options in the hope of finding a better payoff – is a fundamental aspect of learning and decision making.
Jeremy A. Metha   +15 more
doaj   +1 more source

Reversal of magnetization of a single-domain magnetic particle by the ac field of time-dependent frequency

open access: yes, 2012
We report numerical and analytical studies of the reversal of the magnetic moment of a single-domain magnetic particle by a circularly polarized ac field of time-dependent frequency.
Cai, Liufei   +2 more
core   +2 more sources

On Reverse Hypercontractivity [PDF]

open access: yesGeometric and Functional Analysis, 2013
We study the notion of reverse hypercontractivity. We show that reverse hypercontractive inequalities are implied by standard hypercontractive inequalities as well as by the modified log-Sobolev inequality. Our proof is based on a new comparison lemma for Dirichlet forms and an extension of the Strook-Varapolos inequality. A consequence of our analysis
Krzysztof Oleszkiewicz   +3 more
openaire   +4 more sources

In vivo evidence for glycyl radical insertion into a catalytically inactive variant of pyruvate formate‐lyase

open access: yesFEBS Letters, EarlyView.
Dimeric pyruvate formate‐lyase cleaves pyruvate using a radical‐based mechanism. G734 serves as a radical storage location, and the radical is transferred to the catalytic C419 residue. Mutation of the C418‐C419 pair causes loss of enzyme activity, but does not impede radical introduction onto G734. Therefore, cis‐ but not trans‐radical transfer occurs
Michelle Kammel   +2 more
wiley   +1 more source

Characterization of hereditarily reversible posets [PDF]

open access: yesarXiv, 2013
A poset P is called reversible if every order preserving bijective self map of P is an order automorphism. P is called hereditarily reversible if every subposet of P is reversible. We give a complete characterization of hereditarily reversible posets in terms of forbidden subsets. A similar result is stated also for preordered sets.
arxiv  

Topological invariants of time-reversal-invariant band structures [PDF]

open access: yes, 2006
The topological invariants of a time-reversal-invariant band structure in two dimensions are multiple copies of the $\mathbb{Z}_2$ invariant found by Kane and Mele.
J. Moore, J. Moore, L. Balents
semanticscholar   +1 more source

Time-Reversal Symmetry Breaking and Spontaneous Anomalous Hall Effect in Fermi Fluids

open access: yes, 2008
We study the spontaneous non-magnetic time-reversal symmetry breaking in a two-dimensional Fermi liquid without breaking either the translation symmetry or the U(1) charge symmetry.
E. Fradkin   +4 more
core   +1 more source

Is computation reversible? [PDF]

open access: yesOptics Communications, 2007
8 pages, 2 ...
Stuart D. Walker, Michael C. Parker
openaire   +3 more sources

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