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Showing 1 to 12 of 258 entries
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New Relations for Gauge-Theory and Gravity Amplitudes at Loop Level.

Physical review letters

He S, Schlotterer O.
PMID: 28474909
Phys Rev Lett. 2017 Apr 21;118(16):161601. doi: 10.1103/PhysRevLett.118.161601. Epub 2017 Apr 21.

In this Letter, we extend the tree-level Kawai-Lewellen-Tye (KLT) and Bern-Carrasco-Johansson (BCJ) amplitude relations to loop integrands of gauge theory and gravity. By rearranging the propagators of gauge and gravity loop integrands, we propose the first manifestly gauge- and...

Nanosecond X-Ray Photon Correlation Spectroscopy on Magnetic Skyrmions.

Physical review letters

Seaberg MH, Holladay B, Lee JCT, Sikorski M, Reid AH, Montoya SA, Dakovski GL, Koralek JD, Coslovich G, Moeller S, Schlotter WF, Streubel R, Kevan SD, Fischer P, Fullerton EE, Turner JL, Decker FJ, Sinha SK, Roy S, Turner JJ.
PMID: 28949638
Phys Rev Lett. 2017 Aug 11;119(6):067403. doi: 10.1103/PhysRevLett.119.067403. Epub 2017 Aug 09.

We report an x-ray photon correlation spectroscopy method that exploits the recent development of the two-pulse mode at the Linac Coherent Light Source. By using coherent resonant x-ray magnetic scattering, we studied spontaneous fluctuations on nanosecond time scales in...

Natural or Artificial? Multi-Analytical Study of a Scagliola from Estoi Palace Simulating Imperial Red Porphyry.

Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada

Freire MT, Santos Silva A, Veiga MD, Brito J, Schlütter F.
PMID: 27869040
Microsc Microanal. 2016 Dec;22(6):1281-1303. doi: 10.1017/S1431927616011909. Epub 2016 Nov 21.

In this paper the characterization of a gypsum plaster sample from the end of the 19th century simulating imperial red porphyry using a multi-analytical approach is presented and discussed. The results of X-ray diffraction (XRD), thermogravimetric and differential thermal...

Simultaneous electrospinning and electrospraying: a straightforward approach for fabricating hierarchically structured composite membranes.

ACS applied materials & interfaces

Lavielle N, Hébraud A, Schlatter G, Thöny-Meyer L, Rossi RM, Popa AM.
PMID: 24099219
ACS Appl Mater Interfaces. 2013 Oct 23;5(20):10090-7. doi: 10.1021/am402676m. Epub 2013 Oct 07.

We present here for the first time a simple method for micropatterning nonwoven composite membranes. The approach is based on the simultaneous electrospraying of microparticles and electrospinning of nanofibers from different polymer solution feeds (polyethylene glycol and poly(D,L-lactide)) on...

Stability-Indicating HPLC Assay for Determination of Idebenone in Pharmaceutical Forms.

Journal of analytical methods in chemistry

Kombath S, Balde IB, Carret S, Kabiche S, Cisternino S, Fontan JE, Schlatter J.
PMID: 26605105
J Anal Methods Chem. 2015;2015:835986. doi: 10.1155/2015/835986. Epub 2015 Oct 29.

A stability-indicating method was validated for the determination in pharmaceutical forms of idebenone a coenzyme Q10-like compound. The assay was achieved by liquid chromatography analysis using a reversed-phase C18 column and a detector set at 480 nm. The optimized...

Direct Observation of Excimer-Mediated Intramolecular Electron Transfer in a Cofacially-Stacked Perylene Bisimide Pair.

Journal of the American Chemical Society

Sung J, Nowak-Król A, Schlosser F, Fimmel B, Kim W, Kim D, Würthner F.
PMID: 27407012
J Am Chem Soc. 2016 Jul 27;138(29):9029-32. doi: 10.1021/jacs.6b04591. Epub 2016 Jul 19.

We have elucidated excimer-mediated intramolecular electron transfer in cofacially stacked PBIs tethered by two phenylene-butadiynylene loops. The electron transfer between energetically equivalent PBIs is revealed by the simultaneous observation of the PBI radical anion and cation bands in the...

Magnetic Switching in Granular FePt Layers Promoted by Near-Field Laser Enhancement.

Nano letters

Granitzka PW, Jal E, Le Guyader L, Savoini M, Higley DJ, Liu T, Chen Z, Chase T, Ohldag H, Dakovski GL, Schlotter WF, Carron S, Hoffman MC, Gray AX, Shafer P, Arenholz E, Hellwig O, Mehta V, Takahashi YK, Wang J, Fullerton EE, Stöhr J, Reid AH, Dürr HA.
PMID: 28272897
Nano Lett. 2017 Apr 12;17(4):2426-2432. doi: 10.1021/acs.nanolett.7b00052. Epub 2017 Mar 17.

Light-matter interaction at the nanoscale in magnetic materials is a topic of intense research in view of potential applications in next-generation high-density magnetic recording. Laser-assisted switching provides a pathway for overcoming the material constraints of high-anisotropy and high-packing density...

Melting of charge stripes in vibrationally driven La(1.875)Ba(0.125)CuO4: assessing the respective roles of electronic and lattice order in frustrated superconductors.

Physical review letters

Först M, Tobey RI, Bromberger H, Wilkins SB, Khanna V, Caviglia AD, Chuang YD, Lee WS, Schlotter WF, Turner JJ, Minitti MP, Krupin O, Xu ZJ, Wen JS, Gu GD, Dhesi SS, Cavalleri A, Hill JP.
PMID: 24785066
Phys Rev Lett. 2014 Apr 18;112(15):157002. doi: 10.1103/PhysRevLett.112.157002. Epub 2014 Apr 17.

We report femtosecond resonant soft x-ray diffraction measurements of the dynamics of the charge order and of the crystal lattice in nonsuperconducting, stripe-ordered La1.875Ba0.125CuO4. Excitation of the in-plane Cu-O stretching phonon with a midinfrared pulse has been previously shown...

Development of an LC/MS method for the trace analysis of triacetone triperoxide (TATP).

The Analyst

Widmer L, Watson S, Schlatter K, Crowson A.
PMID: 12537371
Analyst. 2002 Dec;127(12):1627-32. doi: 10.1039/b208350g.

The detection and quantification of triacetone triperoxide (TATP) using LC/MS is investigated. GC/MS analysis of TATP is hindered by stationary phase activation in very short periods of time. Due to the lower temperatures used in LC. this problem is...

Genetic mapping of 66 new microsatellite (SSR) loci in bread wheat.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik

Gupta K, Balyan S, Edwards J, Isaac P, Korzun V, Röder M, Gautier MF, Joudrier P, Schlatter R, Dubcovsky J, De La Pena C, Khairallah M, Penner G, Hayden J, Sharp P, Keller B, Wang C, Hardouin P, Jack P, Leroy P.
PMID: 12582546
Theor Appl Genet. 2002 Aug;105(2):413-422. doi: 10.1007/s00122-002-0865-9. Epub 2002 Jun 19.

In hexaploid bread wheat ( Triticum aestivum L. em. Thell), ten members of the IWMMN ( International Wheat Microsatellites Mapping Network) collaborated in extending the microsatellite (SSR = simple sequence repeat) genetic map. Among a much larger number of...

Characterization of anodic spark-converted titanium surfaces for biomedical applications.

Journal of materials science. Materials in medicine

Schreckenbach JP, Marx G, Schlottig F, Textor M, Spencer ND.
PMID: 15348111
J Mater Sci Mater Med. 1999 Aug;10(8):453-7. doi: 10.1023/a:1008988706980.

The aim of the present study was to characterize the surface morphology, microstructure and the chemical composition of anodic spark-converted titanium surfaces. The coatings were prepared in an electrochemical cell by the anodic spark deposition technique in an aqueous...

Nanoscale imaging with resonant coherent X rays: extension of multiple-wavelength anomalous diffraction to nonperiodic structures.

Physical review letters

Scherz A, Zhu D, Rick R, Schlotter WF, Roy S, Lüning J, Stöhr J.
PMID: 18764556
Phys Rev Lett. 2008 Aug 15;101(7):076101. doi: 10.1103/PhysRevLett.101.076101. Epub 2008 Aug 13.

The methodology of multiple-wavelength anomalous diffraction, widely used for macromolecular structure determination, is extended to the imaging of nonperiodic nanostructures. We demonstrate the solution of the phase problem by a combination of two resonantly recorded coherent scattering patterns at...

Showing 1 to 12 of 258 entries