Results 21 to 30 of about 232,921 (296)

Double heterostructure lasers with facets formed by a hybrid wet and reactive-ion-etching technique [PDF]

open access: yes, 1985
Double heterostructure lasers were fabricated in which one of the laser facets was produced by a hybrid wet and reactive-ion-etching technique. This technique is suitable for GaAs/GaAlAs heterostructure lasers and utilizes the selectivity of the plasma ...
Margalit, S.   +3 more
core   +1 more source

Quantum Hall phases and plasma analogy in rotating trapped Bose gases [PDF]

open access: yes, 2013
A bosonic analogue of the fractional quantum Hall eff ect occurs in rapidly rotating trapped Bose gases: There is a transition from uncorrelated Hartree states to strongly correlated states such as the Laughlin wave function.
Rougerie, Nicolas   +2 more
core   +4 more sources

Propagation of ultra-short, resonant, ionizing laser pulses in rubidium vapor [PDF]

open access: yes, 2019
We investigate the propagation of ultra-short laser pulses in atomic rubidium vapor. The pulses are intensive enough to ionize the atoms and are directly resonant with the 780 nm $D_2$ line.
Demeter, Gabor
core   +2 more sources

Ultrafast spatio-temporal dynamics of terahertz generation by ionizing two-color femtosecond pulses in gases [PDF]

open access: yes, 2010
We present a combined theoretical and experimental study of spatio-temporal propagation effects in terahertz (THz) generation in gases using two-color ionizing laser pulses.
Babushkin, I.   +8 more
core   +3 more sources

Statistical thermodynamics of dissociating gases and plasmas [PDF]

open access: yesThe Journal of Chemical Physics, 1979
When a dissociation equilibrium is present, the complete phase space should be allocated consistently to either the associated or dissociated species without duplication or omission of any important region. While this problem is trivial in many systems at low pressure, it becomes important and complex for an ionizing system at high pressure. A feasible
openaire   +2 more sources

Exploiting metabolic adaptations to overcome dabrafenib treatment resistance in melanoma cells

open access: yesMolecular Oncology, EarlyView.
We show that dabrafenib‐resistant melanoma cells undergo mitochondrial remodeling, leading to elevated respiration and ROS production balanced by stronger antioxidant defenses. This altered redox state promotes survival despite mitochondrial damage but renders resistant cells highly vulnerable to ROS‐inducing compounds such as PEITC, highlighting redox
Silvia Eller   +17 more
wiley   +1 more source

Shaping the edge radial electric field to create shearless transport barriers in tokamaks

open access: yesFundamental Plasma Physics, 2023
In tokamak-confined plasmas, particle transport can be reduced by modifying the radial electric field. In this paper, we investigate the influence of both a well-like and a hill-like shaped radial electric field profile on the creation of shearless ...
L.A. Osorio-Quiroga   +4 more
doaj   +1 more source

Experimental investigation of double layers in expanding plasmas

open access: yes, 2015
Double layers (DLs) have been observed in a plasma reactor composed of a source chamber attached to a larger expanding chamber. Positive ion beams generated across the DL were characterized in the low plasma potential region using retarding field energy ...
Chabert, P., Corr, C. S., Plihon, N.
core   +1 more source

The black silicon method: a universal method for determining the parameter setting of a fluorine-based reactive ion etcher in deep silicon trench etching with profile control [PDF]

open access: yes, 1994
Very deep trenches (up to 200 µm) with high aspect ratios (up to 10) in silicon and polymers are etched using a fluorine-based plasma (SF6/O2/CHF3). Isotropic, positively and negatively (i.e.
de Boer, Meint J.   +4 more
core   +4 more sources

Dihydroorotate dehydrogenase (DHODH) regulates trophoblast syncytialization through organelle stress–induced cellular senescence

open access: yesFEBS Open Bio, EarlyView.
The inhibition of mitochondrial dihydroorotate dehydrogenase (DHODH) impairs syncytialization and induces cellular senescence via mitochondrial and endoplasmic reticulum stress in human trophoblast stem cells, elevating sFlt1/PlGF levels, a hallmark of placental dysfunction in hypertensive disorders of pregnancy.
Kanoko Yoshida   +6 more
wiley   +1 more source

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