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Showing 1 to 12 of 505 entries
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Structures of Pb(n) (n = 21-30) clusters from first-principles calculations.

Journal of physics. Condensed matter : an Institute of Physics journal

Li XP, Lu WC, Wang CZ, Ho KM.
PMID: 21403370
J Phys Condens Matter. 2010 Nov 24;22(46):465501. doi: 10.1088/0953-8984/22/46/465501. Epub 2010 Oct 29.

Neutral lead clusters Pb(n) (n = 21-30) were studied using a genetic algorithm (GA)/tight-binding (TB) search combined with density functional theory (DFT)-Perdew-Burke-Ernzerhof (PBE) calculations. The calculated results show that the Pb(n) (22 ≤ n ≤ 30) clusters favor endohedral...

Thermal replacement reaction: a novel route for synthesizing eco-friendly ZnO@γ-In2Se3 hetero-nanostructures by replacing cadmium with indium and their photoelectrochemical and photocatalytic performances.

Nanoscale

Zhang Z, Choi M, Baek M, Yong K.
PMID: 25902878
Nanoscale. 2015 May 21;7(19):8748-57. doi: 10.1039/c5nr01025j.

A novel route called thermal replacement reaction was demonstrated for synthesizing eco-friendly ZnO@γ-In2Se3 hetero-structural nanowires on FTO glass by replacing the element cadmium with indium for the first time. The indium layer was coated on the surface of the...

Odd-Integer Quantum Hall States and Giant Spin Susceptibility in p-Type Few-Layer WSe_{2}.

Physical review letters

Xu S, Shen J, Long G, Wu Z, Bao ZQ, Liu CC, Xiao X, Han T, Lin J, Wu Y, Lu H, Hou J, An L, Wang Y, Cai Y, Ho KM, He Y, Lortz R, Zhang F, Wang N.
PMID: 28234544
Phys Rev Lett. 2017 Feb 10;118(6):067702. doi: 10.1103/PhysRevLett.118.067702. Epub 2017 Feb 10.

We fabricate high-mobility p-type few-layer WSe_{2} field-effect transistors and surprisingly observe a series of quantum Hall (QH) states following an unconventional sequence predominated by odd-integer states under a moderate strength magnetic field. By tilting the magnetic field, we discover...

Single Photon Counting UV Solar-Blind Detectors Using Silicon and III-Nitride Materials.

Sensors (Basel, Switzerland)

Nikzad S, Hoenk M, Jewell AD, Hennessy JJ, Carver AG, Jones TJ, Goodsall TM, Hamden ET, Suvarna P, Bulmer J, Shahedipour-Sandvik F, Charbon E, Padmanabhan P, Hancock B, Bell LD.
PMID: 27338399
Sensors (Basel). 2016 Jun 21;16(6). doi: 10.3390/s16060927.

Ultraviolet (UV) studies in astronomy, cosmology, planetary studies, biological and medical applications often require precision detection of faint objects and in many cases require photon-counting detection. We present an overview of two approaches for achieving photon counting in the...

Spectral anomalies and Gouy rotation around the singularity of ultrashort vortex pulses.

Optics express

Liebmann M, Treffer A, Bock M, Elsaesser T, Grunwald R.
PMID: 29041269
Opt Express. 2017 Oct 16;25(21):26076-26088. doi: 10.1364/OE.25.026076.

Spectral anomalies of femtosecond pulses with orbital angular momentum were studied in the vicinity of singularities. Bessel-Gauss (BG) beams were generated with mode-locked Ti:sapphire oscillators and dispersion-compensated diffractive axicons acting as spiral phase plates (SPPs). High-resolution two-dimensional spectral mapping...

Simple but Effective Way To Enhance Photoelectrochemical Solar-Water-Splitting Performance of ZnO Nanorod Arrays: Charge-Trapping Zn(OH).

ACS applied materials & interfaces

Baek M, Kim D, Yong K.
PMID: 28045250
ACS Appl Mater Interfaces. 2017 Jan 25;9(3):2317-2325. doi: 10.1021/acsami.6b12555. Epub 2017 Jan 12.

This study presents an effective and the simplest method to substantially improve the photoelectrochemical water-splitting ability of hydrothermally grown ZnO nanorod arrays (NRAs). In the hydrothermal growth of ZnO NRAs, unwanted Zn(OH)

Early inner solar system origin for anomalous sulfur isotopes in differentiated protoplanets.

Proceedings of the National Academy of Sciences of the United States of America

Antonelli MA, Kim ST, Peters M, Labidi J, Cartigny P, Walker RJ, Lyons JR, Hoek J, Farquhar J.
PMID: 25453079
Proc Natl Acad Sci U S A. 2014 Dec 16;111(50):17749-54. doi: 10.1073/pnas.1418907111. Epub 2014 Dec 01.

Achondrite meteorites have anomalous enrichments in (33)S, relative to chondrites, which have been attributed to photochemistry in the solar nebula. However, the putative photochemical reactions remain elusive, and predicted accompanying (33)S depletions have not previously been found, which could...

Hyperfractionated high-dose rate brachytherapy in the treatment of oral tongue cancer.

Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology

Tuček L, Petera J, Sirák I, Vošmik M, Doležalová H, Brokešová S, Hodek M, Kašaová L, Paluska P.
PMID: 24376988
Rep Pract Oncol Radiother. 2011 Aug 06;16(6):243-7. doi: 10.1016/j.rpor.2011.07.001. eCollection 2011.

BACKGROUND: Low-dose rate brachytherapy is a well established treatment modality of oral cancer. Data about high-dose rate (HDR) brachytherapy are still sparse with various fractionation schedules and heterogeneous results.AIM: The aim of our retrospective study was to evaluate the...

A Novel MSCRAMM Subfamily in Coagulase Negative Staphylococcal Species.

Frontiers in microbiology

Arora S, Uhlemann AC, Lowy FD, Hook M.
PMID: 27199900
Front Microbiol. 2016 Apr 29;7:540. doi: 10.3389/fmicb.2016.00540. eCollection 2016.

Coagulase negative staphylococci (CoNS) are important opportunistic pathogens. Staphylococcus epidermidis, a coagulase negative staphylococcus, is the third leading cause of nosocomial infections in the US. Surface proteins like Microbial Surface Components Recognizing Adhesive Matrix Molecules (MSCRAMMs) are major virulence...

An adaptive genetic algorithm for crystal structure prediction.

Journal of physics. Condensed matter : an Institute of Physics journal

Wu SQ, Ji M, Wang CZ, Nguyen MC, Zhao X, Umemoto K, Wentzcovitch RM, Ho KM.
PMID: 24351274
J Phys Condens Matter. 2014 Jan 22;26(3):035402. doi: 10.1088/0953-8984/26/3/035402. Epub 2013 Dec 18.

We present a genetic algorithm (GA) for structural search that combines the speed of structure exploration by classical potentials with the accuracy of density functional theory (DFT) calculations in an adaptive and iterative way. This strategy increases the efficiency...

Expression and function of purinergic receptors in platelets from apheresis-derived platelet concentrates.

Blood transfusion = Trasfusione del sangue

Koessler J, Weber K, Koessler A, Yilmaz P, Boeck M, Kobsar A.
PMID: 26674810
Blood Transfus. 2016 Nov;14(6):545-551. doi: 10.2450/2015.0073-15. Epub 2015 Nov 17.

BACKGROUND: The storage of platelets affects platelet integrity and functionality, a process named platelet storage lesion (PSL). Reduced adenosine diphosphate (ADP)-induced platelet aggregation is a typical manifestation of PSL. However, the role of ADP receptors in this context has...

Clinical models of stress.

Acta neuropsychiatrica

Hoes M.
PMID: 26984333
Acta Neuropsychiatr. 2002 Aug;14(4):196-201. doi: 10.1034/j.1601-5215.2002.140407.x.

BACKGROUND: Here we propose a stress model with disease-specific aspects and aspecific factors. The latter are subdivided into load (perception, psychic defence mechanisms), strain (psychophysiological responses) and stress sensu strictu (biological and behavioural compensation). Insufficiently compensated strain will result...

Showing 1 to 12 of 505 entries