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Showing 1 to 12 of 267 entries
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Cosmic-ray positron energy spectrum measured by PAMELA.

Physical review letters

Adriani O, Barbarino GC, Bazilevskaya GA, Bellotti R, Bianco A, Boezio M, Bogomolov EA, Bongi M, Bonvicini V, Bottai S, Bruno A, Cafagna F, Campana D, Carbone R, Carlson P, Casolino M, Castellini G, De Donato C, De Santis C, De Simone N, Di Felice V, Formato V, Galper AM, Karelin AV, Koldashov SV, Koldobskiy SA, Krutkov SY, Kvashnin AN, Leonov A, Malakhov V, Marcelli L, Martucci M, Mayorov AG, Menn W, Mergé M, Mikhailov VV, Mocchiutti E, Monaco A, Mori N, Munini R, Osteria G, Palma F, Papini P, Pearce M, Picozza P, Pizzolotto C, Ricci M, Ricciarini SB, Rossetto L, Sarkar R, Scotti V, Simon M, Sparvoli R, Spillantini P, Stochaj SJ, Stockton JC, Stozhkov YI, Vacchi A, Vannuccini E, Vasilyev GI, Voronov SA, Yurkin YT, Zampa G, Zampa N, Zverev VG.
PMID: 24010424
Phys Rev Lett. 2013 Aug 23;111(8):081102. doi: 10.1103/PhysRevLett.111.081102. Epub 2013 Aug 19.

Precision measurements of the positron component in the cosmic radiation provide important information about the propagation of cosmic rays and the nature of particle sources in our Galaxy. The satellite-borne experiment PAMELA has been used to make a new...

Analytical model for THz emissions induced by laser-gas interaction.

Optics express

Debayle A, Gremillet L, Bergé L, Köhler Ch.
PMID: 24921563
Opt Express. 2014 Jun 02;22(11):13691-709. doi: 10.1364/OE.22.013691.

We develop a one-dimensional model of THz emissions induced by laser-driven, time-asymmetric ionization and current oscillations in a hydrogen gas. Our model highlights complex scalings of the THz fields with respect to the laser and gas parameters, in particular,...

Robust ultrasonic damage detection under complex environmental conditions using singular value decomposition.

Ultrasonics

Liu C, Harley JB, Bergés M, Greve DW, Oppenheim IJ.
PMID: 25600118
Ultrasonics. 2015 Apr;58:75-86. doi: 10.1016/j.ultras.2014.12.005. Epub 2015 Jan 06.

Guided wave ultrasonics is an attractive monitoring technique for damage diagnosis in large-scale plate and pipe structures. Damage can be detected by comparing incoming records with baseline records collected on intact structure. However, during long-term monitoring, environmental and operational...

ACPA-positive primary Sjögren's syndrome: true primary or rheumatoid arthritis-associated Sjögren's syndrome?.

RMD open

Payet J, Belkhir R, Gottenberg JE, Bergé E, Desmoulins F, Meyer O, Mariette X, Seror R.
PMID: 26509066
RMD Open. 2015 Apr 30;1(1):e000066. doi: 10.1136/rmdopen-2015-000066. eCollection 2015.

OBJECTIVES: Anticyclic citrullinated protein antibodies (ACPA) are highly specific of rheumatoid arthritis (RA). However, they have also been detected in 5-10% of primary Sjögren's syndrome (pSS). We compared ACPA-positive and negative patients with pSS and assessed the risk of...

Novel signal peptides improve the secretion of recombinant Staphylococcus aureus Alpha toxin.

AMB Express

Han S, Machhi S, Berge M, Xi G, Linke T, Schoner R.
PMID: 28497288
AMB Express. 2017 Dec;7(1):93. doi: 10.1186/s13568-017-0394-1. Epub 2017 May 12.

Secretion of heterologous proteins into Escherichia coli cell culture medium offers significant advantages for downstream processing over production as inclusion bodies; including cost and time savings, and reduction of endotoxin. Signal peptides play an important role in targeting proteins...

Ultrabroad Terahertz Spectrum Generation from an Air-Based Filament Plasma.

Physical review letters

Andreeva VA, Kosareva OG, Panov NA, Shipilo DE, Solyankin PM, Esaulkov MN, González de Alaiza Martínez P, Shkurinov AP, Makarov VA, Bergé L, Chin SL.
PMID: 26918992
Phys Rev Lett. 2016 Feb 12;116(6):063902. doi: 10.1103/PhysRevLett.116.063902. Epub 2016 Feb 11.

We have solved the long-standing problem of the mechanism of terahertz (THz) generation by a two-color filament in air and found that both neutrals and plasma contribute to the radiation. We reveal that the contribution from neutrals by four-wave...

Probing a Device's Active Atoms.

Advanced materials (Deerfield Beach, Fla.)

Studniarek M, Halisdemir U, Schleicher F, Taudul B, Urbain E, Boukari S, Hervé M, Lambert CH, Hamadeh A, Petit-Watelot S, Zill O, Lacour D, Joly L, Scheurer F, Schmerber G, Da Costa V, Dixit A, Guitard PA, Acosta M, Leduc F, Choueikani F, Otero E, Wulfhekel W, Montaigne F, Monteblanco EN, Arabski J, Ohresser P, Beaurepaire E, Weber W, Alouani M, Hehn M, Bowen M.
PMID: 28295696
Adv Mater. 2017 May;29(19). doi: 10.1002/adma.201606578. Epub 2017 Mar 13.

Materials science and device studies have, when implemented jointly as "operando" studies, better revealed the causal link between the properties of the device's materials and its operation, with applications ranging from gas sensing to information and energy technologies. Here,...

Time Dependence of the Electron and Positron Components of the Cosmic Radiation Measured by the PAMELA Experiment between July 2006 and December 2015.

Physical review letters

Adriani O, Barbarino GC, Bazilevskaya GA, Bellotti R, Boezio M, Bogomolov EA, Bongi M, Bonvicini V, Bottai S, Bruno A, Cafagna F, Campana D, Carlson P, Casolino M, Castellini G, De Santis C, Di Felice V, Galper AM, Karelin AV, Koldashov SV, Koldobskiy SA, Krutkov SY, Kvashnin AN, Leonov A, Malakhov V, Marcelli L, Martucci M, Mayorov AG, Menn W, Mergé M, Mikhailov VV, Mocchiutti E, Monaco A, Mori N, Munini R, Osteria G, Panico B, Papini P, Pearce M, Picozza P, Ricci M, Ricciarini SB, Simon M, Sparvoli R, Spillantini P, Stozhkov YI, Vacchi A, Vannuccini E, Vasilyev GI, Voronov SA, Yurkin YT, Zampa G, Zampa N, Potgieter MS, Vos EE.
PMID: 27367381
Phys Rev Lett. 2016 Jun 17;116(24):241105. doi: 10.1103/PhysRevLett.116.241105. Epub 2016 Jun 17.

Cosmic-ray electrons and positrons are a unique probe of the propagation of cosmic rays as well as of the nature and distribution of particle sources in our Galaxy. Recent measurements of these particles are challenging our basic understanding of...

Hyperbolic shock waves of the optical self-focusing with normal group-velocity dispersion.

Physical review letters

Bergé L, Germaschewski K, Grauer R, Rasmussen JJ.
PMID: 12365988
Phys Rev Lett. 2002 Oct 07;89(15):153902. doi: 10.1103/PhysRevLett.89.153902. Epub 2002 Sep 24.

The theory of focusing light pulses in Kerr media with normal group-velocity dispersion in (2+1) and (3+1) dimensions is revisited. It is shown that pulse splitting introduced by this dispersion follows from shock fronts that develop along hyperbolas separating...

Chirp-induced dynamics of femtosecond filaments in air.

Optics letters

Nuter R, Skupin S, Bergé L.
PMID: 15865398
Opt Lett. 2005 Apr 15;30(8):917-9. doi: 10.1364/ol.30.000917.

We investigate the influence of a chirped phase on femtosecond pulses propagating in air. Pulses with an initially negative chirp are temporally compressed by compensation with group-velocity dispersion. We demonstrate that this property, combined with plasma defocusing, can be...

Distribution of time-bin entangled qubits over 50 km of optical fiber.

Physical review letters

Marcikic I, de Riedmatten H, Tittel W, Zbinden H, Legré M, Gisin N.
PMID: 15525142
Phys Rev Lett. 2004 Oct 29;93(18):180502. doi: 10.1103/PhysRevLett.93.180502. Epub 2004 Oct 28.

We report experimental distribution of time-bin entangled qubits over 50 km of optical fibers. Using actively stabilized preparation and measurement devices we demonstrate violation of the Clauser-Horne-Shimony-Holt Bell inequality by more than 15 standard deviations without removing the detector...

Interaction of ultrashort x-ray pulses with B4C , SiC, and Si.

Physical review. E, Statistical, nonlinear, and soft matter physics

Bergh M, Tîmneanu N, Hau-Riege SP, Scott HA.
PMID: 18352130
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Feb;77(2):026404. doi: 10.1103/PhysRevE.77.026404. Epub 2008 Feb 11.

The interaction of 32.5 and 6 nm ultrashort x-ray pulses with the solid materials B4C , SiC, and Si is simulated with a nonlocal thermodynamic equilibrium radiation transfer code. We study the ionization dynamics as a function of depth...

Showing 1 to 12 of 267 entries