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Showing 1 to 12 of 162 entries
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Subnatural linewidth single photons from a quantum dot.

Physical review letters

Matthiesen C, Vamivakas AN, Atatüre M.
PMID: 22463634
Phys Rev Lett. 2012 Mar 02;108(9):093602. doi: 10.1103/PhysRevLett.108.093602. Epub 2012 Feb 28.

The observation of quantum-dot resonance fluorescence enabled a new solid-state approach to generating single photons with a bandwidth approaching the natural linewidth of a quantum-dot transition. Here, we operate in the small Rabi frequency limit of resonance fluorescence--the Heitler...

Subnatural linewidth single photons from a quantum dot.

Physical review letters

Matthiesen C, Vamivakas AN, Atatüre M.
PMID: 22463634
Phys Rev Lett. 2012 Mar 02;108(9):093602. doi: 10.1103/PhysRevLett.108.093602. Epub 2012 Feb 28.

The observation of quantum-dot resonance fluorescence enabled a new solid-state approach to generating single photons with a bandwidth approaching the natural linewidth of a quantum-dot transition. Here, we operate in the small Rabi frequency limit of resonance fluorescence--the Heitler...

High Resolution Synchrotron X-Radiation Diffraction Imaging of Crystals Grown in Microgravity and Closely Related Terrestrial Crystals.

Journal of research of the National Institute of Standards and Technology

Steiner B, Dobbyn RC, Black D, Burdette H, Kuriyama M, Spal R, van den Berg L, Fripp A, Simchick R, Lal RB, Batra A, Matthiesen D, Ditchek B.
PMID: 28184117
J Res Natl Inst Stand Technol. 1991 May-Jun;96(3):305-331. doi: 10.6028/jres.096.017.

Irregularities in three crystals grown in space and in four terrestrial crystals grown under otherwise comparable conditions have been observed in high resolution diffraction imaging. The images provide important new clues to the nature and origins of irregularities in...

Early Pliocene onset of modern Nordic Seas circulation related to ocean gateway changes.

Nature communications

De Schepper S, Schreck M, Beck KM, Matthiessen J, Fahl K, Mangerud G.
PMID: 26507275
Nat Commun. 2015 Oct 28;6:8659. doi: 10.1038/ncomms9659.

The globally warm climate of the early Pliocene gradually cooled from 4 million years ago, synchronous with decreasing atmospheric CO2 concentrations. In contrast, palaeoceanographic records indicate that the Nordic Seas cooled during the earliest Pliocene, before global cooling. However,...

Erratum to: Methylation of the miR-126 gene associated with glioma progression.

Familial cancer

Cui H, Mu Y, Yu L, Xi Y, Matthiesen R, Su X, Sun W.
PMID: 26603436
Fam Cancer. 2016 Apr;15(2):325. doi: 10.1007/s10689-015-9848-2.

No abstract available.

Evidence for ice-free summers in the late Miocene central Arctic Ocean.

Nature communications

Stein R, Fahl K, Schreck M, Knorr G, Niessen F, Forwick M, Gebhardt C, Jensen L, Kaminski M, Kopf A, Matthiessen J, Jokat W, Lohmann G.
PMID: 27041737
Nat Commun. 2016 Apr 04;7:11148. doi: 10.1038/ncomms11148.

Although the permanently to seasonally ice-covered Arctic Ocean is a unique and sensitive component in the Earth's climate system, the knowledge of its long-term climate history remains very limited due to the restricted number of pre-Quaternary sedimentary records. During...

Size Focusing of Nanoparticles by Thermodynamic Control through Ligand Interactions. Molecular Clusters Compared with Nanoparticles of Metals.

The journal of physical chemistry letters

Jose D, Matthiesen JE, Parsons C, Sorensen CM, Klabunde KJ.
PMID: 26286415
J Phys Chem Lett. 2012 Apr 05;3(7):885-90. doi: 10.1021/jz201640e. Epub 2012 Mar 15.

Ligand-capped metal entities come in two sizes, (1) molecular clusters of 10-200 metal atoms and (2) nanoparticles of 2000-10000 metal atoms. In numerous cases, certain "magic sizes" have been found to be most accessible and stable, clusters of 25,...

Early lactation performance in primiparous and multiparous women in relation to different maternity home practices. A randomised trial in St. Petersburg.

International breastfeeding journal

Bystrova K, Widström AM, Matthiesen AS, Ransjö-Arvidson AB, Welles-Nyström B, Vorontsov I, Uvnäs-Moberg K.
PMID: 17488524
Int Breastfeed J. 2007 May 08;2:9. doi: 10.1186/1746-4358-2-9.

BACKGROUND: There are not many studies exploring parity differences in early lactation performance and the results obtained are fairly often contradictory. The present study investigated the effect of different maternity home practices in St. Petersburg, Russia, as well as...

Predicting mortality after intracerebral hemorrhage: comparison of scoring systems and influence of withdrawal of care.

Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association

Matchett SC, Castaldo J, Wasser TE, Baker K, Mathiesen C, Rodgers J.
PMID: 17904067
J Stroke Cerebrovasc Dis. 2006 Jul-Aug;15(4):144-50. doi: 10.1016/j.jstrokecerebrovasdis.2006.03.006.

OBJECTIVE: The Broderick system and the intracerebral hemorrhage (ICH) score are two systems for predicting 30-day mortality in patients with spontaneous ICH. No previous study has compared two ICH scoring systems in an independent patient cohort. Our purpose was...

Observation of spin-dependent quantum jumps via quantum dot resonance fluorescence.

Nature

Vamivakas AN, Lu CY, Matthiesen C, Zhao Y, Fält S, Badolato A, Atatüre M.
PMID: 20844531
Nature. 2010 Sep 16;467(7313):297-300. doi: 10.1038/nature09359.

Reliable preparation, manipulation and measurement protocols are necessary to exploit a physical system as a quantum bit. Spins in optically active quantum dots offer one potential realization and recent demonstrations have shown high-fidelity preparation and ultrafast coherent manipulation. The...

Comparison of estimated energy intake using Web-based Dietary Assessment Software with accelerometer-determined energy expenditure in children.

Food & nutrition research

Biltoft-Jensen A, Hjorth MF, Trolle E, Christensen T, Brockhoff PB, Andersen LF, Tetens I, Matthiessen J.
PMID: 24358037
Food Nutr Res. 2013 Dec 17;57. doi: 10.3402/fnr.v57i0.21434. eCollection 2013.

BACKGROUND: The OPUS (Optimal well-being, development and health for Danish children through a healthy New Nordic Diet) project carried out a school meal study to assess the impact of a New Nordic Diet (NND). The random controlled trial involved...

Strategies to Identify Recognition Signals and Targets of SUMOylation.

Biochemistry research international

Da Silva-Ferrada E, Lopitz-Otsoa F, Lang V, Rodríguez MS, Matthiesen R.
PMID: 22811915
Biochem Res Int. 2012;2012:875148. doi: 10.1155/2012/875148. Epub 2012 Jul 01.

SUMOylation contributes to the regulation of many essential cellular factors. Diverse techniques have been used to explore the functional consequences of protein SUMOylation. Most approaches consider the identification of sequences on substrates, adaptors, or receptors regulating the SUMO conjugation,...

Showing 1 to 12 of 162 entries