Results 91 to 100 of about 446,660 (328)

Quantized adiabatic charge pumping and resonant transmission

open access: yes, 2002
Adiabatically pumped charge, carried by non-interacting electrons through a quantum dot in a turnstile geometry, is studied as function of the strength of the two modulating potentials (related to the conductances of the two point-contacts to the leads ...
A. Aharony   +24 more
core   +1 more source

Magnetically advected winds [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2017
Abstract Observations of X-ray absorption lines in magnetically driven disc winds around black hole binaries and active galactic nuclei yield a universal radial density profile ρ ∝ r−1.2 in the wind. This is in disagreement with the standard Blandford and Payne profile ρBP ∝ r−1.5 expected when the magnetic field is neither advected nor ...
Contopoulos, Ioannis   +2 more
openaire   +3 more sources

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

open access: yesFEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Winding around non-Hermitian singularities [PDF]

open access: yesNature Communications, 2018
Non-Hermitian singularities are ubiquitous in non-conservative open systems. Owing to their peculiar topology, they can remotely induce observable effects when encircled by closed trajectories in the parameter space.
Q. Zhong   +3 more
semanticscholar   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Breakup of Shearless Meanders and "Outer" Tori in the Standard Nontwist Map

open access: yes, 2006
The breakup of shearless invariant tori with winding number $\omega=[0,1,11,1,1,...]$ (in continued fraction representation) of the standard nontwist map is studied numerically using Greene's residue criterion.
A. Apte   +5 more
core   +1 more source

String Winding Modes From Charge Non-Conservation in Compact Chern-Simons Theory [PDF]

open access: yes, 1996
In this letter we show how string winding modes can be constructed using topological membranes. We use the fact that monopole-instantons in compact topologically massive gauge theory lead to charge non-conservation inside the membrane which, in turn ...
Amelino-Camelia   +28 more
core   +2 more sources

Stator Winding Fault Thermal Signature Monitoring and Analysis by In Situ FBG Sensors

open access: yesIEEE transactions on industrial electronics (1982. Print), 2019
Winding short circuit faults are recognized as one of most frequent electric machine failure modes. Effective on-line diagnosis of these is vital, but remains a challenging task, in particular, at incipient fault stage.
A. Mohammed, J. Melecio, S. Djurović
semanticscholar   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

Cambio de bobinados en motores de inducción a partir del análisis dimensional

open access: yesRevista Científica de Ingeniería Energética, 2011
En el trabajo se amplía la metodología desarrollada por los autores para el cálculo de losdevanados del estator de los motores de inducción sometidos a reparación, incluyendo elcálculo para motores alimentados de
Florentino Sesma Zaragoza   +1 more
doaj  

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