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Showing 1 to 12 of 170 entries
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Phonon-assisted nonlinear optical processes in ultrashort-pulse pumped optical parametric amplifiers.

Scientific reports

Isaienko O, Robel I.
PMID: 26975881
Sci Rep. 2016 Mar 15;6:23031. doi: 10.1038/srep23031.

Optically active phonon modes in ferroelectrics such as potassium titanyl phosphate (KTP) and potassium titanyl arsenate (KTA) in the ~7-20 THz range play an important role in applications of these materials in Raman lasing and terahertz wave generation. Previous...

Quantum Dot Thin-Films as Rugged, High-Performance Photocathodes.

Nano letters

Makarov NS, Lim J, Lin Q, Lewellen JW, Moody NA, Robel I, Pietryga JM.
PMID: 28253617
Nano Lett. 2017 Apr 12;17(4):2319-2327. doi: 10.1021/acs.nanolett.6b05175. Epub 2017 Mar 14.

Typical use of colloidal quantum dots (QDs) as bright, tunable phosphors in real applications relies on engineering of their surfaces to suppress the loss of excited carriers to surface trap states or to the surrounding medium. Here, we explore...

StreAM-[Formula: see text]: algorithms for analyzing coarse grained RNA dynamics based on Markov models of connectivity-graphs.

Algorithms for molecular biology : AMB

Jager S, Schiller B, Babel P, Blumenroth M, Strufe T, Hamacher K.
PMID: 28572834
Algorithms Mol Biol. 2017 May 30;12:15. doi: 10.1186/s13015-017-0105-0. eCollection 2017.

BACKGROUND: In this work, we present a new coarse grained representation of RNA dynamics. It is based on adjacency matrices and their interactions patterns obtained from molecular dynamics simulations. RNA molecules are well-suited for this representation due to their...

Nuclear forensic analysis of an unknown uranium ore concentrate sample seized in a criminal investigation in Australia.

Forensic science international

Keegan E, Kristo MJ, Colella M, Robel M, Williams R, Lindvall R, Eppich G, Roberts S, Borg L, Gaffney A, Plaue J, Wong H, Davis J, Loi E, Reinhard M, Hutcheon I.
PMID: 24836840
Forensic Sci Int. 2014 Jul;240:111-21. doi: 10.1016/j.forsciint.2014.04.004. Epub 2014 Apr 13.

Early in 2009, a state policing agency raided a clandestine drug laboratory in a suburb of a major city in Australia. During the search of the laboratory, a small glass jar labelled "Gamma Source" and containing a green powder...

Literacy shapes thought: the case of event representation in different cultures.

Frontiers in psychology

Dobel C, Enriquez-Geppert S, Zwitserlood P, Bölte J.
PMID: 24795665
Front Psychol. 2014 Apr 16;5:290. doi: 10.3389/fpsyg.2014.00290. eCollection 2014.

There has been a lively debate whether conceptual representations of actions or scenes follow a left-to-right spatial transient when participants depict such events or scenes. It was even suggested that conceptualizing the agent on the left side represents a...

The application of portable microchip electrophoresis for the screening and comparative analysis of synthetic cathinone seizures.

Forensic science international

Lloyd A, Russell M, Blanes L, Somerville R, Doble P, Roux C, Kumar CG.
PMID: 25016536
Forensic Sci Int. 2014 Sep;242:16-23. doi: 10.1016/j.forsciint.2014.06.013. Epub 2014 Jun 24.

Variation in the chemical composition of illicit tablets and powders is common among samples within a given drug seizure. Using microchip electrophoresis (ME), multiple tablets can be screened in a cost-effective and timely manner. This method could be used...

Cavitation bubble dynamics inside liquid drops in microgravity.

Physical review letters

Obreschkow D, Kobel P, Dorsaz N, de Bosset A, Nicollier C, Farhat M.
PMID: 17026369
Phys Rev Lett. 2006 Sep 01;97(9):094502. doi: 10.1103/PhysRevLett.97.094502. Epub 2006 Sep 01.

We studied spark-generated cavitation bubbles inside water drops produced in microgravity. High-speed visualizations disclosed unique effects of the spherical and nearly isolated liquid volume. In particular, (1) toroidally collapsing bubbles generate two liquid jets escaping from the drop, and...

Effect of wheat bran and wheat germ on the intestinal uptake of oleic acid, monoolein, and cholesterol in the rat.

The Journal of nutritional biochemistry

Borel P, Martigne M, Senft M, Garzino P, Lafont H, Lairon D.
PMID: 15539162
J Nutr Biochem. 1990 Jan;1(1):28-33. doi: 10.1016/0955-2863(90)90095-3.

The effects of fiber-rich wheat bran and wheat germ on the intestinal absorption of dietary cholesterol, free fatty acids, and monoglycerides were studied. Rats were given a test meal containing [(14)C]oleic acid, [(14)C]monoolein, and [(3)H]cholesterol. After a 1-hour digestion...

Universal size-dependent trend in auger recombination in direct-gap and indirect-gap semiconductor nanocrystals.

Physical review letters

Robel I, Gresback R, Kortshagen U, Schaller RD, Klimov VI.
PMID: 19518831
Phys Rev Lett. 2009 May 01;102(17):177404. doi: 10.1103/PhysRevLett.102.177404. Epub 2009 May 01.

We report the first experimental observation of a striking convergence of Auger recombination rates in nanocrystals of both direct- (InAs, PbSe, CdSe) and indirect-gap (Ge) semiconductors, which is in contrast to a dramatic difference (by up to 4-5 orders...

Screening of gunshot residues using desorption electrospray ionisation-mass spectrometry (DESI-MS).

Forensic science international

Morelato M, Beavis A, Ogle A, Doble P, Kirkbride P, Roux C.
PMID: 22047751
Forensic Sci Int. 2012 Apr 10;217(1):101-6. doi: 10.1016/j.forsciint.2011.10.030. Epub 2011 Nov 01.

Several studies have indicated that there are potential environmental sources of particles resembling inorganic primer found in gunshot residues (GSR); as a consequence examiners are reluctant to unambiguously assign the origin of inorganic particles. If organic gunshot residues (OGSR)...

Efficient propagation of TM polarized light in photonic crystal components exhibiting band gaps for TE polarized light.

Optics express

Borel P, Frandsen L, Thorhauge M, Harpøth A, Zhuang Y, Kristensen M, Chong H.
PMID: 19466056
Opt Express. 2003 Jul 28;11(15):1757-62. doi: 10.1364/oe.11.001757.

We have investigated the properties of TM polarized light in planar photonic crystal waveguide structures, which exhibit photonic band gaps for TE polarized light. Straight and bent photonic crystal waveguides and couplers have been fabricated in silicon-on-insulator material and...

Mining for hemicellulases in the fungus-growing termite Pseudacanthotermes militaris using functional metagenomics.

Biotechnology for biofuels

Bastien G, Arnal G, Bozonnet S, Laguerre S, Ferreira F, Fauré R, Henrissat B, Lefèvre F, Robe P, Bouchez O, Noirot C, Dumon C, O'Donohue M.
PMID: 23672637
Biotechnol Biofuels. 2013 May 14;6(1):78. doi: 10.1186/1754-6834-6-78.

BACKGROUND: The metagenomic analysis of gut microbiomes has emerged as a powerful strategy for the identification of biomass-degrading enzymes, which will be no doubt useful for the development of advanced biorefining processes. In the present study, we have performed...

Showing 1 to 12 of 170 entries