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Results: 17255
Exchange interactions in Cd1-xMnxTe wide quantum wells
C. Rice, L. C. Smith, J. J. Davies, D. Wolverson, M. Wiater, G. Karczewski, T. Wojtowicz
Oct 24, 2012
The exchange interactions between excitons and manganese ions in wide (80 nm) quantum wells of Cd1−xMnxTe (x≈0.0015 and x≈0.00027) have been measured for states with center of mass quantum numbers up to 10. The corresponding...
Exchange interactions in Cd1-xMnxTe wide quantum wells
C. Rice, L. C. Smith, J. J. Davies, D. Wolverson, M. Wiater, G. Karczewski, T. Wojtowicz
Oct 24, 2012
The exchange interactions between excitons and manganese ions in wide (80 nm) quantum wells of Cd1−xMnxTe (x≈0.0015 and x≈0.00027) have been measured for states with center of mass quantum numbers up to 10. The corresponding...
Order reconstruction patterns in nematic liquid crystal wells
We numerically study structural transitions inside shallow sub-micrometre scale wells with square cross section, filled with nematic liquid crystal material. We model the wells within the Landau–de Gennes theory. We obtain two...
Impact of alloy fluctuations and Coulomb effects on the electronic and optical properties of c -plane GaN/AlGaN quantum wells
A. A. Roble, S. K. Patra, F. Massabuau, M. Frentrup, M. A. Leontiadou, P. Dawson, M. J. Kappers, R. A. Oliver, D. M. Graham, S. Schulz
Dec 10, 2020
Abstract: We report on a combined theoretical and experimental study of the impact of alloy fluctuations and Coulomb effects on the electronic and optical properties of c-plane GaN/AlGaN multi-quantum well systems. The presence...
Order reconstruction patterns in nematic liquid crystal wells
We numerically study structural transitions inside shallow sub-micrometre scale wells with square cross section, filled with nematic liquid crystal material. We model the wells within the Landau–de Gennes theory. We obtain two...
Multistable nematic wells
This review article is a consolidated but not exhaustive account of recent modelling and numerical work on nematic-filled square or cuboid shaped wells with planar degenerate boundary conditions. This seemingly simple...
Deep Brain Stimulation to Increase Generalized Arousal in Intact Mice and a Mouse Model of Traumatic Brain Injury
Amy Wells Quinkert
Jan 01, 0001
G protein-coupled receptors (GPCRs) are dynamic membrane proteins that bind extracellular molecules to transduce biological signals. Although GPCRs represent the largest class of targets for therapeutic agents, ligand-binding...
Published by: Rockefeller University
Multistable nematic wells
This review article is a consolidated but not exhaustive account of recent modelling and numerical work on nematic-filled square or cuboid shaped wells with planar degenerate boundary conditions. This seemingly simple...
First-Ever Public Art Installation for Wells Fargo Golf Championship Planned
Winthrop University
Jan 01, 0001
Wells Fargo Bank has commissioned a series of eight sculpture installations for display at the 2012 Wells Fargo Championship, a PGA TOUR golf tournament that will tee off April 30 through May 6 at Charlotte's Quail Hollow Club....
Published by: Winthrop University
Inversion asymmetry effects in modulation-doped Cd1-xMnxTe quantum wells
Caitlin Rice, D Wolverson, A Moskalenko, S J Bending, Gregorsz Karczewski, Tomek Wojtowicz
Mar 25, 2013
We report a striking in-plane anisotropy of the spin-flip Raman signals observed for dilute magnetic Cd1-xMnxTe quantum wells containing a two-dimensional electron gas. The effect depends upon electron concentration, which can...
Photoluminescence efficiency of zincblende InGaN/GaN quantum wells
SA Church, M Quinn, K Cooley-Greene, B Ding, A Gundimeda, MJ Kappers, M Frentrup, DJ Wallis, RA Oliver, DJ Binks
May 10, 2021
Growing green and amber emitting InGaN/GaN quantum wells in the zincblende, rather than the wurtzite, crystal phase has the potential to improve efficiency. However, optimization of the emission efficiency of these...
Polar (In,Ga)N/GaN Quantum Wells
We present a detailed theoretical analysis of the electronic and optical properties of c-plane InGaN/GaN quantum-well structures with In contents ranging from 5% to 25%. Special attention is paid to the relevance of...
Wells Fargo and Business College Will Host Economic Forecast Breakfast
Winthrop University
Jan 01, 0001
Mark Vitner, managing director and senior economist for Wells Fargo Securities, will provide information on global, national, regional, and local trends impacting the economy. The 7:30 to 9 a.m. event will be held in the...
Published by: Winthrop University
Strong-field terahertz optical sideband generation for wavelength conversion in asymmetric double quantum wells
Terahertz (THz) optical sideband generation in asymmetric double quantum wells in strong THz fields is studied theoretically. Both monotonic THz-power dependence and saturation of the first-order sideband intensity can occur...
Strong-field terahertz optical sideband generation for wavelength conversion in asymmetric double quantum wells
Terahertz (THz) optical sideband generation in asymmetric double quantum wells in strong THz fields is studied theoretically. Both monotonic THz-power dependence and saturation of the first-order sideband intensity can occur...
Inversion asymmetry effects in modulation-doped Cd1-xMnxTe quantum wells
Caitlin Rice, D Wolverson, A Moskalenko, S J Bending, Gregorsz Karczewski, Tomek Wojtowicz
Mar 25, 2013
We report a striking in-plane anisotropy of the spin-flip Raman signals observed for dilute magnetic Cd1-xMnxTe quantum wells containing a two-dimensional electron gas. The effect depends upon electron concentration, which can...
Evolution of Lactase Persistence
The emergence of the capacity to digest milk in some populations represents a landmark in human evolution, linking genetic change with a component of niche construction, namely dairying. Alleles promoting continued activity of...
Drinking water from dug wells in rural ghana--salmonella contamination, environmental factors, and genotypes.
Denise Myriam Dekker, Ralf Krumkamp, Nimako Sarpong, Hagen Frickmann, Kennedy Gyau Boahen, Michael Frimpong, Renate Asare, Richard Larbi, Ralf Matthias Hagen, Sven Poppert, Wolfgang Rabsch, Florian Marks, Yaw Adu-Sarkodie, Jürgen May
Feb 19, 2019
Salmonellosis is an important but neglected disease in sub-Saharan Africa. Food or fecal-oral associated transmissions are the primary cause of infections, while the role of waterborne transmission is unclear. Samples were...
Perovskite light-emitting diodes based on solution-processed self-organized multiple quantum wells
N Wang, L Cheng, R Ge, S Zhang, Y Miao, W Zou, C Yi, Y Sun, Y Cao, R Yang, Y Wei, Q Guo, Y Ke, M Yu, Y Jin, Y Liu, Q Ding, D Di, L Yang, G Xing, H Tian, C Jin, F Gao, RH Friend, J Wang, W Huang
May 02, 2017
Organometal halide perovskites can be processed from solutions at low temperatures to form crystalline direct-bandgap semiconductors with promising optoelectronic properties. However, the efficiency of their electroluminescence...
Associations of the objective built environment along the route to school with children's modes of commuting
As active commuting levels continue to decline among primary schoolchildren, evidence about which built environmental characteristics influence walking or cycling to school remains inconclusive and is strongly context-dependent....
Published by: PLOS ONE
On the appearance of nitrite anion in [PdX(OAc)L<sub>2</sub>] and [Pd(X)(C∧N)L] syntheses (X = OAc or NO<sub>2</sub>)
S E Bajwa, T E Storr, Lauren E Hatcher, T J Williams, C G Baumann, A C Whitwood, D R Allan, S J Teat, Paul R Raithby, I J S Fairlamb
May 01, 2012
Pd 3(OAc) 5NO 2, an impurity in "Pd(OAc) 2" {formally Pd 3(OAc) 6}, emerges as a serious issue in the synthesis of pure Pd II complexes derived from Pd(OAc) 2, for example in our C-H activation precatalyst, Pd(OAc) 2(pip) 2 (pip...
Changes to water management and declining pastoral resilience in Marsabit County, northern Kenya
Abstract: In this article, we provide a review of research on the existing and abandoned wells in Marsabit County, Northern Kenya, and associated Indigenous Knowledge concerning water governance, institutions of leadership, and...
Bridging pre-surgical endocrine therapy for breast cancer during the COVID-19 pandemic
Rajiv V Dave, Beatrix Elsberger, Vicky P Taxiarchi, Ashu Gandhi, Cliona C Kirwan, Baek Kim, Elizabeth M Camacho, Charlotte E Coles, Ellen Copson, Alona Courtney, Kieran Horgan, Patricia Fairbrother, Chris Holcombe, Jamie J Kirkham, Daniel R Leff, Stuart A McIntosh, Rachel O'Connell, Ricardo Pardo, Shelley Potter, Tim Rattay, Nisha Sharma, Raghavan Vidya, Ramsey I Cutress, B-MaP-C study collaborative
Apr 17, 2023
PURPOSE: The B-MaP-C study investigated changes to breast cancer care that were necessitated by the COVID-19 pandemic. Here we present a follow-up analysis of those patients commenced on bridging endocrine therapy (BrET), whilst...
Evolutionary public health
Jonathan CK Wells, Randolph M Nesse, Rebecca Sear, Rufus A Johnstone, Stephen C Stearns
Aug 17, 2017
The emerging discipline of evolutionary medicine is breaking new ground in understanding why people become ill. However, the value of evolutionary analyses of human physiology and behaviour is only beginning to be recognised in...
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