Results 31 to 40 of about 62,497 (197)

Simulating Organogenesis in COMSOL: Tissue Mechanics

open access: yes, 2017
During growth, tissue expands and deforms. Given its elastic properties, stresses emerge in an expanding and deforming tissue. Cell rearrangements can dissipate these stresses and numerous experiments confirm the viscoelastic properties of tissues [1]-[4]
Iber, D., Peters, M. D.
core   +1 more source

Coupled-mode analysis of fiber-optic add drop filters for dense wavelength-division multiplexing [PDF]

open access: yes, 1997
We present a coupled-mode theory of fiber-optic add drop filters, which involve directional coupling between two fibers combined with fiber Bragg gratings defined inside the coupling region.
Orlov, Sergei S.   +2 more
core   +1 more source

Análisis del transporte de sedimentos en el curso bajo del río Ebro mediante modelización numérica de una avenida controlada

open access: yesIngeniería del Agua
El principal objetivo de este estudio es el análisis de la movilización de sedimento durante la avenida controlada del 5 de mayo de 2022 en el curso bajo del río Ebro desde la presa de Ribarroja.
David López-Gómez   +13 more
doaj   +1 more source

Suppression of beating noise of narrow-linewidth erbium-doped fiber ring lasers by use of a semiconductor optical amplifier [PDF]

open access: yes, 2003
Beating noise in narrow-linewidth erbium-doped fiber ring lasers puts severe limitations on applications of the lasers. We demonstrate the suppression of beating noise in fiber ring lasers by using a semiconductor optical amplifier in the laser cavity ...
Baby, Varghese   +3 more
core   +1 more source

Influence of Obstructive Sleep Apnea on Maternal and Perinatal Outcomes in Patients With Gestational Diabetes Mellitus

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT The prevalence of obstructive sleep apnea (OSA) increases during pregnancy and is associated with gestational diabetes mellitus (GDM), although its clinical impact on birth outcomes remains unclear. We aimed to assess the effect of several OSA criteria and intermittent hypoxia in the third trimester on perinatal outcomes in women with GDM.
María Cerdà Moncadas   +14 more
wiley   +1 more source

Tone‐Evoked Sleep Electroencephalographic Slow Oscillations as a Function of Peripheral Rhythms: New Insights Into the Brain–Heart Integration

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Recent studies have shown that acoustic stimulation, a common neuromodulation technique, can enhance slow‐wave activity (SWA), which is associated with immune, autonomic nervous system activity and cognitive health benefits. Despite some disagreement, many studies suggest that maximising tone‐evoked SWA depends on the timing of the acoustic ...
Mohamad Forouzanfar   +4 more
wiley   +1 more source

Simulating Organogenesis in COMSOL: Comparison Of Methods For Simulating Branching Morphogenesis

open access: yes, 2017
During organogenesis tissue grows and deforms. The growth processes are controlled by diffusible proteins, so-called morphogens. Many different patterning mechanisms have been proposed.
Aland, Sebastian   +3 more
core   +1 more source

Excessive Daytime Sleepiness, but Not Insomnia Is Associated With Dyslipidaemia in Patients With Obstructive Sleep Apnoea Participating in ESADA

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Excessive daytime sleepiness (EDS) as well as insomnia have been associated with a higher risk for cardiovascular disease in patients with obstructive sleep apnoea (OSA). The link is not fully understood but may involve dyslipidaemia. The aim of the study was to analyse if the EDS and insomnia phenotypes were associated with deranged serum ...
Andras Bikov   +61 more
wiley   +1 more source

Ultralow-threshold microcavity Raman laser on a microelectronic chip [PDF]

open access: yes, 2004
Using ultrahigh-Q toroid microcavities on a chip, we demonstrate a monolithic microcavity Raman laser. Cavity photon lifetimes in excess of 100 ns combined with mode volumes typically of less than 1000 µm^3 significantly reduce the threshold for ...
Armani, D. K.   +3 more
core   +1 more source

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