Results 11 to 20 of about 2,031 (125)

Hedgehog pathway dysregulation contributes to the pathogenesis of human gastrointestinal stromal tumors via GLI-mediated activation of KIT expression. [PDF]

open access: yes, 2016
Gastrointestinal stromal tumors (GIST) arise within the interstitial cell of Cajal (ICC) lineage due to activating KIT/PDGFRA mutations. Both ICC and GIST possess primary cilia (PC), which coordinate PDGFRA and Hedgehog signaling, regulators of ...
Bardsley, Michael R   +18 more
core   +2 more sources

Path-integral Monte Carlo simulations for interacting few-electron quantum dots with spin-orbit coupling [PDF]

open access: yes, 2005
We develop path-integral Monte Carlo simulations for a parabolic two-dimensional (2D) quantum dot containing $N$ interacting electrons in the presence of Dresselhaus and/or Rashba spin-orbit couplings.
E. I. Rashba   +4 more
core   +1 more source

Conductance quantization and snake states in graphene magnetic waveguides [PDF]

open access: yes, 2008
We consider electron waveguides (quantum wires) in graphene created by suitable inhomogeneous magnetic fields. The properties of uni-directional snake states are discussed. For a certain magnetic field profile, two spatially separated counter-propagating
A. De Martino   +7 more
core   +2 more sources

Emergent magnetic state in (111)-oriented quasi-two-dimensional spinel oxides

open access: yes, 2019
We report on the emergent magnetic state of (111)-oriented CoCr2O4 ultrathin films sandwiched by Al2O3 in the quantum confined geometry. At the two-dimensional crossover, polarized neutron reflectometry reveals an anomalous enhancement of the total ...
Arenholz, Elke   +12 more
core   +1 more source

Aluminium-oxide wires for superconducting high kinetic inductance circuits [PDF]

open access: yes, 2016
We investigate thin films of conducting aluminium-oxide, also known as granular aluminium, as a material for superconducting high quality, high kinetic inductance circuits. The films are deposited by an optimised reactive DC magnetron sputter process and
Bushev, P.   +9 more
core   +2 more sources

Increased performance uncertainty in children with ADHD? - Elevated post-imperative negative variation (PINV) over the ventrolateral prefrontal cortex [PDF]

open access: yes, 2011
Background: We aimed to investigate the influences of attention deficit/hyperactivity disorder (ADHD) on response evaluation, as reflected by the postimperative negative variation (PINV), a slow event-related potential.
Bender, Stephan   +4 more
core   +1 more source

Evidence for a Bulk Complex Order-Parameter in Y0.9Ca0.1Ba2Cu3O7-delta Thin Films

open access: yes, 2004
We have measured the penetration depth of overdoped Y0.9Ca0.1Ba2Cu3O7-delta (Ca-YBCO) thin films using two different methods. The change of the penetration depth as a function of temperature has been measured using the parallel plate resonator (PPR ...
Anderson P. W.   +12 more
core   +1 more source

Monte Carlo simulated dynamical magnetization of single-chain magnets

open access: yes, 2014
Here, a dynamical Monte-Carlo (DMC) method is used to study temperature-dependent dynamical magnetization of famous Mn2Ni system as typical example of single-chain magnets with strong magnetic anisotropy.
Li, Jun, Liu, Bang-Gui
core   +1 more source

The effect of cattle slurry in combination with nitrate and the nitrification inhibitor dicyandiamide on in situ nitrous oxide and dinitrogen emissions [PDF]

open access: yes, 2012
peer-reviewedA field study was conducted to determine the effect of the nitrification inhibitor dicyandiamide (DCD) on N2O and N2 emissions after cattle slurry (CS) application in the presence of nitrate (NO3) fertiliser on seven different occasions ...
Cahalan, E.   +6 more
core   +1 more source

Zitterbewegung of a heavy hole in presence of spin-orbit interactions

open access: yes, 2015
We study the $zitterbewegung$ of a heavy hole in presence of both cubic Rashba and cubic Dresselhaus spin-orbit interactions. On contrary to the electronic case, $zitterbewegung$ does not vanish for equal strength of Rashba and Dresselhaus spin-orbit ...
Biswas, Tutul   +2 more
core   +1 more source

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