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Showing 1 to 12 of 231 entries
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Sub-Femto-g Free Fall for Space-Based Gravitational Wave Observatories: LISA Pathfinder Results.

Physical review letters

Armano M, Audley H, Auger G, Baird JT, Bassan M, Binetruy P, Born M, Bortoluzzi D, Brandt N, Caleno M, Carbone L, Cavalleri A, Cesarini A, Ciani G, Congedo G, Cruise AM, Danzmann K, de Deus Silva M, De Rosa R, Diaz-Aguiló M, Di Fiore L, Diepholz I, Dixon G, Dolesi R, Dunbar N, Ferraioli L, Ferroni V, Fichter W, Fitzsimons ED, Flatscher R, Freschi M, García Marín AF, García Marirrodriga C, Gerndt R, Gesa L, Gibert F, Giardini D, Giusteri R, Guzmán F, Grado A, Grimani C, Grynagier A, Grzymisch J, Harrison I, Heinzel G, Hewitson M, Hollington D, Hoyland D, Hueller M, Inchauspé H, Jennrich O, Jetzer P, Johann U, Johlander B, Karnesis N, Kaune B, Korsakova N, Killow CJ, Lobo JA, Lloro I, Liu L, López-Zaragoza JP, Maarschalkerweerd R, Mance D, Martín V, Martin-Polo L, Martino J, Martin-Porqueras F, Madden S, Mateos I, McNamara PW, Mendes J, Mendes L, Monsky A, Nicolodi D, Nofrarias M, Paczkowski S, Perreur-Lloyd M, Petiteau A, Pivato P, Plagnol E, Prat P, Ragnit U, Raïs B, Ramos-Castro J, Reiche J, Robertson DI, Rozemeijer H, Rivas F, Russano G, Sanjuán J, Sarra P, Schleicher A, Shaul D, Slutsky J, Sopuerta CF, Stanga R, Steier F, Sumner T, Texier D, Thorpe JI, Trenkel C, Tröbs M, Tu HB, Vetrugno D, Vitale S, Wand V, Wanner G, Ward H, Warren C, Wass PJ, Wealthy D, Weber WJ, Wissel L, Wittchen A, Zambotti A, Zanoni C, Ziegler T, Zweifel P.
PMID: 27341221
Phys Rev Lett. 2016 Jun 10;116(23):231101. doi: 10.1103/PhysRevLett.116.231101. Epub 2016 Jun 07.

We report the first results of the LISA Pathfinder in-flight experiment. The results demonstrate that two free-falling reference test masses, such as those needed for a space-based gravitational wave observatory like LISA, can be put in free fall with...

Gold(I)-catalyzed 6-endo hydroxycyclization of 7-substituted-1,6-enynes.

Beilstein journal of organic chemistry

Sanjuán AM, Martínez A, García-García P, Fernández-Rodríguez MA, Sanz R.
PMID: 24204437
Beilstein J Org Chem. 2013 Oct 29;9:2242-9. doi: 10.3762/bjoc.9.263. eCollection 2013.

The cyclization of o-(alkynyl)-3-(methylbut-2-enyl)benzenes, 1,6-enynes having a condensed aromatic ring at C3-C4 positions, has been studied under the catalysis of cationic gold(I) complexes. The selective 6-endo-dig mode of cyclization observed for the 7-substituted substrates in the presence of water...

Phylogenetic-based nomenclatural proposals for Ophiocordycipitaceae (Hypocreales) with new combinations in Tolypocladium.

IMA fungus

Quandt CA, Kepler RM, Gams W, Araújo JP, Ban S, Evans HC, Hughes D, Humber R, Hywel-Jones N, Li Z, Luangsa-Ard JJ, Rehner SA, Sanjuan T, Sato H, Shrestha B, Sung GH, Yao YJ, Zare R, Spatafora JW.
PMID: 25083412
IMA Fungus. 2014 Jun;5(1):121-34. doi: 10.5598/imafungus.2014.05.01.12. Epub 2014 Jun 19.

Ophiocordycipitaceae is a diverse family comprising ecologically, economically, medicinally, and culturally important fungi. The family was recognized due to the polyphyly of the genus Cordyceps and the broad diversity of the mostly arthropod-pathogenic lineages of Hypocreales. The other two...

Gold(I)-catalyzed cycloisomerizations and alkoxycyclizations of ortho-(alkynyl)styrenes.

Chemistry (Weinheim an der Bergstrasse, Germany)

Sanjuán AM, Rashid MA, García-García P, Martínez-Cuezva A, Fernández-Rodríguez MA, Rodríguez F, Sanz R.
PMID: 25557166
Chemistry. 2015 Feb 09;21(7):3042-52. doi: 10.1002/chem.201405789. Epub 2014 Dec 29.

Indenes and related polycyclic structures have been efficiently synthesized by gold(I)-catalyzed cycloisomerizations of appropriate ortho-(alkynyl)styrenes. Disubstitution at the terminal position of the olefin was demonstrated to be essential to obtain products originating from a formal 5-endo-dig cyclization. Interestingly, a...

Vibrational resonance in a noise-induced structure.

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

Zaikin AA, López L, Baltanás JP, Kurths J, Sanjuán MA.
PMID: 12241340
Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Jul;66(1):011106. doi: 10.1103/PhysRevE.66.011106. Epub 2002 Jul 22.

We report on the effect of vibrational resonance in a spatially extended system of coupled noisy oscillators under the action of two periodic forces, a low-frequency one (signal) and a high-frequency one (carrier). Vibrational resonance manifests itself in the...

Numerical and experimental exploration of phase control of chaos.

Chaos (Woodbury, N.Y.)

Zambrano S, Allaria E, Brugioni S, Leyva I, Meucci R, Sanjuán MA, Arecchi FT.
PMID: 16599742
Chaos. 2006 Mar;16(1):013111. doi: 10.1063/1.2161437.

A well-known method to suppress chaos in a periodically forced chaotic system is to add a harmonic perturbation. The phase control of chaos scheme uses the phase difference between a small added harmonic perturbation and the main driving to...

Nanoscale shape-memory alloys for ultrahigh mechanical damping.

Nature nanotechnology

San Juan J, Nó ML, Schuh CA.
PMID: 19581892
Nat Nanotechnol. 2009 Jul;4(7):415-9. doi: 10.1038/nnano.2009.142. Epub 2009 Jun 07.

Shape memory alloys undergo reversible transformations between two distinct phases in response to changes in temperature or applied stress. The creation and motion of the internal interfaces between these phases during such transformations dissipates energy, making these alloys effective...

Raman spectroscopic study of cation disorder in poly- and single crystals of the nickel aluminate spinel.

Journal of physics. Condensed matter : an Institute of Physics journal

Laguna-Bercero MA, Sanjuán ML, Merino RI.
PMID: 21690998
J Phys Condens Matter. 2007 May 08;19(18):186217. doi: 10.1088/0953-8984/19/18/186217. Epub 2007 Apr 11.

The Raman spectrum of NiAl(2)O(4) inverse spinel has been studied in quenched polycrystalline pellets produced by solid-state reaction and in single crystals grown by the floating zone method. The lattice parameters and inversion degrees were determined by x-ray diffraction....

Multimodal morphometry and functional magnetic resonance imaging in schizophrenia and auditory hallucinations.

World journal of radiology

García-Martí G, Aguilar EJ, Martí-Bonmatí L, Escartí MJ, Sanjuán J.
PMID: 22590670
World J Radiol. 2012 Apr 28;4(4):159-66. doi: 10.4329/wjr.v4.i4.159.

AIM: To validate a multimodal [structural and functional magnetic resonance (MR)] approach as coincidence brain clusters are hypothesized to correlate with clinical severity of auditory hallucinations.METHODS: Twenty-two patients meeting Diagnostic and Statistical Manual of Mental Disorders (fourth edition, DSM-IV)...

Effects of periodic forcing in chaotic scattering.

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

Blesa F, Seoane JM, Barrio R, Sanjuán MA.
PMID: 24827315
Phys Rev E Stat Nonlin Soft Matter Phys. 2014 Apr;89(4):042909. doi: 10.1103/PhysRevE.89.042909. Epub 2014 Apr 17.

The effects of a periodic forcing on chaotic scattering are relevant in certain situations of physical interest. We investigate the effects of the forcing amplitude and the external frequency in both the survival probability of the particles in the...

Raman spectrum of Pr2CuO4: Crystal-field transitions of Pr3+ and the A* mode.

Physical review. B, Condensed matter

Laguna MA, Sanjuán ML.
PMID: 9980472
Phys Rev B Condens Matter. 1995 Nov 01;52(17):13000-13005. doi: 10.1103/physrevb.52.13000.

No abstract available.

[H-Ca+]0 defect in thermochemically reduced CaO: A static and dynamical EPR study.

Physical review. B, Condensed matter

Chen Y, Orera VM, Sanjuán ML.
PMID: 9994908
Phys Rev B Condens Matter. 1990 Oct 15;42(12):7604-7609. doi: 10.1103/physrevb.42.7604.

No abstract available.

Showing 1 to 12 of 231 entries