Results 61 to 70 of about 1,057,490 (313)

Height of the Potential Barrier in Barrier Layer Cells [PDF]

open access: yesNature, 1953
Measurements of the zero resistance of a number of barrier-layer cells1 over a wide range of temperatures have shown that the theoretical expression: where A and ϕ are regarded as constants, is not obeyed over the whole range of temperatures.
openaire   +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

Dissipative quantum systems with a potential barrier: General theory and the parabolic barrier [PDF]

open access: yesPhysical Review E, 1995
We study the real time dynamics of a quantum system with potential barrier coupled to a heat-bath environment. Employing the path integral approach an evolution equation for the time dependent density matrix is derived. The time evolution is evaluated explicitly near the barrier top in the temperature region where quantum effects become important.
Ankerhold, Joachim   +2 more
openaire   +3 more sources

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Stochastic resonance at diffusion over potential barrier [PDF]

open access: yesЯдерна фізика та енергетика, 2013
The general problem of diffusive overcoming of a single-well potential barrier in the presence of a periodic time forcing is studied within the generalized Langevin approach.
V. M. Kolomietz, S. V. Radionov
doaj  

Growth and chemical characterisation studies of Mn silicate barrier layers on SiO2 and CDO [PDF]

open access: yes, 2012
This thesis investigates the suitability of manganese silicate (MnSiO3) as a possible copper interconnect diffusion barrier layer on both a 5.4 nm thick thermally grown SiO2 and a low dielectric constant carbon doped oxide (CDO), with the focus of ...
Bogan, Justin
core  

Tunable Schottky barrier height and surface potential by using hydrogen ions

open access: yes, 2014
In this research work, hydrogen ion can be used for Schottky barrier height and surface potential tuning with specific power. The current output of Ohmic and Schottky contacted device would be enhanced from 8.25 μA to 171 μA and 2.84 pA to 1.3 μA ...
Yeh, P. H.   +1 more
core   +1 more source

Resonances for symmetric two-barrier potentials [PDF]

open access: yesEuropean Journal of Physics, 2011
We describe a method for the accurate calculation of bound-state and resonance energies for one-dimensional potentials. We calculate the shape resonances for symmetric two-barrier potentials and compare them with those coming from the Siegert approximation, the complex scaling method and the box-stabilization method.
openaire   +4 more sources

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

Finite difference approximation of control via the potential in a 1-D Schrodinger equation

open access: yesElectronic Journal of Differential Equations, 2000
We consider the problem of steering given initial data to given terminal data via a time-dependent potential, the control, in a 1-D Schrodinger equation. We determine a condition for existence of a transferring potential within our approximation.
K. Kime
doaj  

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