Results 51 to 60 of about 215,499 (207)

Mg/Ca ratios in freshwater microbial carbonates: Thermodynamic, kinetic and vital effects [PDF]

open access: yes, 2014
The ratio of magnesium to calcium (Mg/Ca) in carbonate minerals in an abiotic setting is conventionally assumed to be predominantly controlled by (Mg/Ca)solution and a temperature dependant partition coefficient. This temperature dependence suggests that
Greenway, G.   +4 more
core   +2 more sources

Acute and Chronic Effects of High Frequency Electric Pulse Stimulation on the Akt/mTOR Pathway in Human Primary Myotubes

open access: yesFrontiers in Bioengineering and Biotechnology, 2020
Electrical pulse stimulation (EPS) has been suggested to be a useful method to investigate the mechanisms underlying the adaptations of human skeletal muscle to both endurance and resistance exercise.
Mayalen Valero-Breton   +6 more
doaj   +1 more source

Asymptotic expansion of the optimal control under logarithmic penalty: worked example and open problems [PDF]

open access: yes, 2007
We discuss the problem of expansion of optimal control, state and costate when a logarithmic penalty is applied to constraints. We show that, in a simple case, that the variation of (a regular) junction point, and of the optimal control, state and ...
Alvarez, Felipe   +2 more
core   +2 more sources

Adiabatic Control of the Electron Phase in a Quantum Dot

open access: yes, 2003
A Berry phase can be added to the wavefunction of an isolated quantum dot by adiabatically modulating a nonuniform electric field along a time-cycle.
Giuliano, D.   +2 more
core   +1 more source

The pervasive role of biological cohesion in bedform development [PDF]

open access: yes, 2015
Sediment fluxes in aquatic environments are crucially dependent on bedform dynamics. However, sediment-flux predictions rely almost completely on clean-sand studies, despite most environments being composed of mixtures of non-cohesive sands, physically ...
A Hazen   +31 more
core   +7 more sources

Effect of lincRNA-EPS on osteoclastogenesis of RAW264.7 cells induced by RANKL and LPS: An experimental study

open access: yesKouqiang hemian waike zazhi
[Objective:] To study the effect of long non-coding RNA-EPS (lincRNA-EPS) on osteoclastogenesis of RAW264.7 cells induced by receptor activator for nuclear factor-κB ligand (RANKL) and lipopolysaccharide (LPS).
ZHANG Xu, WANG Yabing, SU Jiansheng
doaj   +1 more source

Parametrically controlling solitary wave dynamics in modified Kortweg-de Vries equation

open access: yes, 2005
We demonstrate the control of solitary wave dynamics of modified Kortweg-de Vries (MKdV) equation through the temporal variations of the distributed coefficients.
Abramowitz M   +10 more
core   +1 more source

The Development of an Electrical Pulse Stimulation System for Examining In Vitro Models of Exercise

open access: yesProceedings
Background and objectives: Electrical pulse stimulation (EPS) is widely used to investigate the mechanisms behind the beneficial effects of physical activity in in vitro studies. The aim of our study was to develop a cheap, stable EPS system and protocol
Grzegorz Nikrandt   +2 more
doaj   +1 more source

Screening and characterization of Lactobacillus strains producing large amounts of exopolysaccharides [PDF]

open access: yes, 1998
A total of 182 Lactobacillus strains were screened for production of extracellular polysaccharides (EPS) by a new method: growth in liquid media with high sugar concentrations. Sixty EPS-positive strains were identified; 17 strains produced more than 100
Brink, B. ten,   +4 more
core   +3 more sources

Current state and prospects of development of frequency converters for marine electric propulsion systems

open access: yesРоссийская Арктика
Marine electric propulsion systems (EPS) are increasingly used on various vessels due to their advantages and advancements in transistor converter technology. Modern frequency converters (FC) rely on intelligent power modules (IPM).
M.Yu. Sergeev
doaj   +1 more source

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