Results 101 to 110 of about 36,602 (214)
Decadal Shifts in Groundwater Age Detected by Environmental Tracers Across California, USA
Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.Abstract Groundwater age offers important insight into recharge, storage, and contamination risk. Although models predict age changes can be driven by pumping and climate variability, direct observational evidence remains limited. Here, we analyzed paired environmental tracer suites (tritium, carbon‐14, and tritiogenic helium‐3) collected a decade ...
By Bryant C. Jurgens, Zeno F. Levy
wiley +1 more source
Frontiers in Aging Neuroscience, 2019 Objective: Since decreased brain-derived neurotrophic factor (BDNF) and increased dipeptidyl peptidase-4 (DPP4) activity have both been implicated in the pathogenesis of mild cognitive impairment (MCI), the aim of our study was to evaluate the ...
Liuping Xiao +11 more
doaj +1 more source
Efficient single frequency fibre lasers using novel photosensitive Er/Yb optical fibres
, 1997 Boron- and germanium-doped highly photosensitive cladding is used in a novel design to achieve photosensitive Er/Yb-doped fibers, permitting short, strong gratings (length ~1cm, reflectivity >99%) to be written without hydrogenation.
Caplen, J.E. +5 more
core +1 more source
Integrated waveguide-DBR microcavity opto-mechanical system
Optics Express, 2011 Cavity opto-mechanics exploits optical forces acting on mechanical structures. Many opto-mechanics demonstrations either require extensive alignment of optical components for probing and measurement, which limits the number of opto-mechanical devices on-chip; or the approaches limit the ability to control the opto-mechanical parameters independently ...
Marcel W, Pruessner +3 more
openaire +2 more sources
Merging van der Waals Materials and Optical Metasurfaces for Cavity Quantum Electrodynamics
Nanophotonics, Volume 15, Issue 5, 16 March 2026.Flat optical metasurfaces supporting quasi‐bound states in the continuum (qBIC) enable cavity‐like, high‐Q resonances in ultrathin nanostructures. This perspective explores the emergence of cavity quantum electrodynamics in qBIC metasurfaces, specifically those made from ultrathin van der Waals nanostructures, where cavities and emitters are seamlessly
Luca Sortino +2 more
wiley +1 more source
Dilemmas of dating: The case of aprioristic sexual lookism
Journal of Social Philosophy, EarlyView.
Rossella De Bernardi
wiley +1 more source
Qualitative Research in Education, 2019 What insights emerge through researcher reflections on a Design-Based Research (DBR) curricular integration project that contribute to the professional learning of education faculty/ researchers?
Tiffany L. Gallagher, Xavier Fazio
doaj +1 more source
Applied Sciences, 2019 This paper reviews past research and the current state-of-the-art concerning gallium nitride-based vertical-cavity surface-emitting lasers (GaN-VCSELs) incorporating distributed Bragg reflectors (DBRs).
Tatsushi Hamaguchi +2 more
doaj +1 more source
Backward stochastic differential equations with random stopping time and singular final condition
, 2007 In this paper we are concerned with one-dimensional backward stochastic differential equations (BSDE in short) of the following type: \[Y_t=\xi -\int_{t\wedge \tau}^{\tau}Y_r|Y_r|^q dr-\int_{t\wedge \tau}^{\tau}Z_r dB_r,\qquad t\geq 0,\] where $\tau$ is ...
Popier, A.
core +3 more sources
, 2002 The photonic band dispersion and density of states (DOS) are calculated for the three-dimensional (3D) hexagonal structure corresponding to a distributed Bragg reflector patterned with a 2D triangular lattice of circular holes. Results for the Si/SiO$_2$
A. Blanco +25 more
core +1 more source