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Showing 1 to 12 of 136 entries
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Efficient laser-driven proton acceleration from cylindrical and planar cryogenic hydrogen jets.

Scientific reports

Obst L, Göde S, Rehwald M, Brack FE, Branco J, Bock S, Bussmann M, Cowan TE, Curry CB, Fiuza F, Gauthier M, Gebhardt R, Helbig U, Huebl A, Hübner U, Irman A, Kazak L, Kim JB, Kluge T, Kraft S, Loeser M, Metzkes J, Mishra R, Rödel C, Schlenvoigt HP, Siebold M, Tiggesbäumker J, Wolter S, Ziegler T, Schramm U, Glenzer SH, Zeil K.
PMID: 28860614
Sci Rep. 2017 Aug 31;7(1):10248. doi: 10.1038/s41598-017-10589-3.

We report on recent experimental results deploying a continuous cryogenic hydrogen jet as a debris-free, renewable laser-driven source of pure proton beams generated at the 150 TW ultrashort pulse laser Draco. Efficient proton acceleration reaching cut-off energies of up...

The Peptidoglycan Pattern of Staphylococcus carnosus TM300-Detailed Analysis and Variations Due to Genetic and Metabolic Influences.

Antibiotics (Basel, Switzerland)

Deibert J, Kühner D, Stahl M, Koeksoy E, Bertsche U.
PMID: 27669322
Antibiotics (Basel). 2016 Sep 23;5(4). doi: 10.3390/antibiotics5040033.

The Gram-positive bacterium Staphylococcus carnosus (S. carnosus) TM300 is an apathogenic staphylococcal species commonly used in meat starter cultures. As with all Gram-positive bacteria, its cytoplasmic membrane is surrounded by a thick peptidoglycan (PGN) or murein sacculus consisting of...

Nanodrawing of Aligned Single Carbon Nanotubes with a Nanopen.

Nano letters

Yeshua T, Lehmann C, Hübner U, Azoubel S, Magdassi S, Campbell EE, Reich S, Lewis A.
PMID: 26789406
Nano Lett. 2016 Mar 09;16(3):1517-22. doi: 10.1021/acs.nanolett.5b03424. Epub 2016 Feb 09.

Single-walled carbon nanotubes (SWCNTs) are considered pivotal components for molecular electronics. Techniques for SWCNT lithography today lack simplicity, flexibility, and speed of direct, oriented deposition at specific target locations. In this paper SWCNTs are directly drawn and placed with...

Managers' reactions towards employees' disclosure of psychiatric or somatic diagnoses.

Epidemiology and psychiatric sciences

Mendel R, Kissling W, Reichhart T, Bühner M, Hamann J.
PMID: 24308312
Epidemiol Psychiatr Sci. 2015 Apr;24(2):146-9. doi: 10.1017/S2045796013000711. Epub 2013 Dec 05.

AIMS: To study whether employees who disclose a psychiatric diagnosis, such as depression risk stigmatisation and discrimination at the workplace.METHODS: Randomised experimental study with 748 managers from German companies incorporating four case vignettes displaying an employee with different 'diagnoses'...

New advanced operational regime on the W7-AS stellarator.

Physical review letters

McCormick K, Grigull P, Burhenn R, Brakel R, Ehmler H, Feng Y, Gadelmeier F, Giannone L, Hildebrandt D, Hirsch M, Jaenicke R, Kisslinger J, Klinger T, Klose S, Knauer JP, König R, Kühner G, Laqua HP, Naujoks D, Niedermeyer H, Pasch E, Ramasubramanian N, Rust N, Sardei F, Wagner F, Weller A, Wenzel U, Werner A.
PMID: 12097046
Phys Rev Lett. 2002 Jul 01;89(1):015001. doi: 10.1103/PhysRevLett.89.015001. Epub 2002 Jun 11.

A promising new plasma operational regime on the Wendelstein stellarator W7-AS has been discovered. It is extant above a threshold density and characterized by flat density profiles, high energy and low impurity confinement times, and edge-localized radiation. Impurity accumulation...

Experiments on the pulmonary circulation.

The Journal of physiology

Fühner H, Starling EH.
PMID: 16993238
J Physiol. 1913 Dec 19;47(4):286-304. doi: 10.1113/jphysiol.1913.sp001625.

No abstract available.

In situ observation of gamma-Fe2O3 nanoparticle adsorption under different monolayers at the air/water interface.

Langmuir : the ACS journal of surfaces and colloids

Degen P, Paulus M, Maas M, Kahner R, Schmacke S, Struth B, Tolan M, Rehage H.
PMID: 18850729
Langmuir. 2008 Nov 18;24(22):12958-62. doi: 10.1021/la802394a. Epub 2008 Oct 14.

We studied the adsorption of gamma-Fe 2O 3 nanoparticles from an aqueous solution under different charged Langmuir monolayers (stearic acid, stearyl alcohol, and stearyl amine). The aqueous subphase was composed of a colloidal suspension of gamma-Fe 2O 3 nanoparticles....

Doubly resonant optical nanoantenna arrays for polarization resolved measurements of surface-enhanced Raman scattering.

Optics express

Petschulat J, Cialla D, Janunts N, Rockstuhl C, Hübner U, Möller R, Schneidewind H, Mattheis R, Popp J, Tünnermann A, Lederer F, Pertsch T.
PMID: 20389431
Opt Express. 2010 Mar 01;18(5):4184-97. doi: 10.1364/OE.18.004184.

We report that rhomb-shaped metal nanoantenna arrays support multiple plasmonic resonances, making them favorable bio-sensing substrates. Besides the two localized plasmonic dipole modes associated with the two principle axes of the rhombi, the sample supports an additional grating-induced surface...

Early embryogenesis in Tropaeolum majus L.: Diversification of plastids.

Planta

Nagl W, Kühner S.
PMID: 24425173
Planta. 1976 Jan;133(1):15-9. doi: 10.1007/BF00386000.

Embryogeny in the nasturtium is characterized by the development of a large, tripartite suspensor and storing cotyledons. A light and electron microscopic study revealed an early diversification of the plastids in the various regions of the suspensor and the...

Botulinum toxin type A treatment to the upper face: retrospective analysis of daily practice.

Clinical, cosmetic and investigational dermatology

Prager W, Huber-Vorländer J, Taufig AZ, Imhof M, Kühne U, Weissberg R, Kuhr LP, Rippmann V, Philipp-Dormston WG, Proebstle TM, Roth C, Kerscher M, Ulmann C, Pavicic T.
PMID: 22791996
Clin Cosmet Investig Dermatol. 2012;5:53-8. doi: 10.2147/CCID.S26550. Epub 2012 Jun 08.

BACKGROUND: Botulinum toxin type A treatment has been used for over 20 years to enhance the appearance of the face. There are several commercially available botulinum toxin type A products used in aesthetic clinical practice. The aim of this...

Double-element metamaterial with negative index at near-infrared wavelengths.

Optics letters

Pshenay-Severin E, Hübner U, Menzel C, Helgert C, Chipouline A, Rockstuhl C, Tünnermann A, Lederer F, Pertsch T.
PMID: 19488146
Opt Lett. 2009 Jun 01;34(11):1678-80. doi: 10.1364/ol.34.001678.

We present the realization of a metamaterial that combines double cut wires and continuous wires in its unit cell. This double-element geometry together with the applied layer-by-layer fabrication technique permits an independent tuning of the geometry of the unit-cell...

The effect of silver thickness on the enhancement of polymer based SERS substrates.

Nanotechnology

Schneidewind H, Weber K, Zeisberger M, Hübner U, Dellith A, Cialla-May D, Mattheis R, Popp J.
PMID: 25319270
Nanotechnology. 2014 Nov 07;25(44):445203. doi: 10.1088/0957-4484/25/44/445203. Epub 2014 Oct 16.

We investigated silver-covered polymer based nanogratings as substrates for surface-enhanced Raman spectroscopy (SERS), in particular with respect to the thickness of the plasmonically active silver film. In order to obtain accurate geometrical input data for the simulation process, we...

Showing 1 to 12 of 136 entries