Results 71 to 80 of about 813,041 (316)

Sex steroids, growth factors and mammographic density: a cross-sectional study of UK postmenopausal Caucasian and Afro-Caribbean women. [PDF]

open access: yes, 2009
INTRODUCTION: Sex steroids, insulin-like growth factors (IGFs) and prolactin are breast cancer risk factors but whether their effects are mediated through mammographic density, one of the strongest risk factors for breast cancer, is unknown.
Isabel dos Santos Silva   +29 more
core   +1 more source

Beamstrahlung considerations in laser-plasma-accelerator-based linear colliders

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2012
Beam-beam interaction constraints modify the basic plasma density scalings for a linear collider based on laser-plasma accelerators. In the quantum beamstrahlung regime, it is shown that operating at low plasma density increases beamstrahlung effects ...
C. B. Schroeder   +2 more
doaj   +1 more source

Initial rate of cholesterol esterification association with high density lipoproteins in human plasma

open access: yesJournal of Lipid Research, 1980
The enzyme lecithin:cholesterol acyl transferase has been measured both in total plasma and in the fraction of plasma from which very low and low density lipoproteins have been removed by ultracentrifugation.
J C Pinon, A M Bridoux, M H Laudat
doaj   +1 more source

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

Quantifying experimental edge plasma evolution via multidimensional adaptive Gaussian process regression [PDF]

open access: yes, 2020
Submitted for publication in IEEE Transactions on Plasma ScienceThe edge density and temperature of tokamak plasmas are strongly correlated with energy and particle confinement and their quantification is fundamental to understanding edge dynamics. These
Mathews, Abhilash, Hughes, Jerry W.
core   +1 more source

Relativistic self-focusing of intense laser beam in thermal collisionless quantum plasma with ramped density profile

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2015
Propagation of a Gaussian x-ray laser beam has been analyzed in collisionless thermal quantum plasma with considering a ramped density profile. In this density profile due to the increase in the plasma density, an earlier and stronger self-focusing ...
S. Zare   +4 more
doaj   +1 more source

Rab14 regulates the transport of human papillomavirus to the trans‐Golgi network for infectious cell entry

open access: yesFEBS Letters, EarlyView.
This study reveals that the small GTPase Rab14 is necessary for human papillomavirus (HPV) infection and plays an essential role in the transport of virions to the trans‐Golgi network (TGN). HPV in the early endosome (EE), which harbors GTP‐bound Rab14, is transported to the TGN through the switch of Rab14 from its GTP‐bound to GDP‐bound form.
Yoshiyuki Ishii, Iwao Kukimoto
wiley   +1 more source

Experimental Demonstration of Superradiant Amplification of Ultra-Short Laser Pulses in a Plasma [PDF]

open access: yes, 2005
A novel amplifications scheme for 20-30-fs laser pulses has been demonstrated. The signal pulses are amplified in a plasma by few picosecond long, counterpropagating pump pulses.
Dreher, M., Dreher, Matthias
core   +1 more source

Effects of density gradients and fluctuations at the plasma edge on ECEI measurements at ASDEX Upgrade [PDF]

open access: yes, 2018
Electron cyclotron emission imaging (ECEI) provides measurements of electron temperature (T e) and its fluctuations (δT e). However, when measuring at the plasma edge, in the steep gradient region, radiation transport effects must be taken into account ...
B Vanovac   +55 more
core   +1 more source

Spatial distribution of plasma density and magnetic field amplitude in the dayside magnetosheath as a function of the IMF orientation

open access: yesFrontiers in Astronomy and Space Sciences
The properties of the magnetosheath are of pivotal importance in determining the coupling between the magnetosphere and interplanetary medium. In particular, the magnetic flux pileup and plasma depletion layer (PDL) modify the boundary conditions of ...
B. Michotte de Welle   +7 more
doaj   +1 more source

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