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Showing 1 to 12 of 192 entries
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Good genes and good luck: ammonoid diversity and the end-Permian mass extinction

Geoscience Opportunities for Leadership in Diversity AND Program Evaluation

Brayard A, Bucher H, Escarguel G, Monnet C.
GSID: LcbADD8dunsJ
A Brayard, G Escarguel, H Bucher, C Monnet… - Science, 2009 - science.org

The end-Permian mass extinction removed more than 80% of marine genera. Ammonoid cephalopods were among the organisms most affected by this crisis. The analysis of a global diversity data set of ammonoid genera covering about 106 million years centered...

Longitudinal and transverse Zeeman ladders in the Ising-like chain antiferromagnet BaCo(2)V(2)O(8).

Physical review letters

Grenier B, Petit S, Simonet V, Canévet E, Regnault LP, Raymond S, Canals B, Berthier C, Lejay P.
PMID: 25615498
Phys Rev Lett. 2015 Jan 09;114(1):017201. doi: 10.1103/PhysRevLett.114.017201. Epub 2015 Jan 06.

We explore the spin dynamics emerging from the Néel phase of the chain compound antiferromagnet BaCo(2)V(2)O(8). Our inelastic neutron scattering study reveals unconventional discrete spin excitations, so-called Zeeman ladders, understood in terms of spinon confinement, due to the interchain...

Influence of Dose Rate on the Cellular Response to Low- and High-LET Radiations.

Frontiers in oncology

Wozny AS, Alphonse G, Battiston-Montagne P, Simonet S, Poncet D, Testa E, Guy JB, Rancoule C, Magné N, Beuve M, Rodriguez-Lafrasse C.
PMID: 27014633
Front Oncol. 2016 Mar 14;6:58. doi: 10.3389/fonc.2016.00058. eCollection 2016.

Nowadays, head and neck squamous cell carcinoma (HNSCC) treatment failure is mostly explained by locoregional progression or intrinsic radioresistance. Radiotherapy (RT) has recently evolved with the emergence of heavy ion radiations or new fractionation schemes of photon therapy, which...

Back to the Future of Soil Metagenomics.

Frontiers in microbiology

Nesme J, Achouak W, Agathos SN, Bailey M, Baldrian P, Brunel D, Frostegård Å, Heulin T, Jansson JK, Jurkevitch E, Kruus KL, Kowalchuk GA, Lagares A, Lappin-Scott HM, Lemanceau P, Le Paslier D, Mandic-Mulec I, Murrell JC, Myrold DD, Nalin R, Nannipieri P, Neufeld JD, O'Gara F, Parnell JJ, Pühler A, Pylro V, Ramos JL, Roesch LF, Schloter M, Schleper C, Sczyrba A, Sessitsch A, Sjöling S, Sørensen J, Sørensen SJ, Tebbe CC, Topp E, Tsiamis G, van Elsas JD, van Keulen G, Widmer F, Wagner M, Zhang T, Zhang X, Zhao L, Zhu YG, Vogel TM, Simonet P.
PMID: 26903960
Front Microbiol. 2016 Feb 10;7:73. doi: 10.3389/fmicb.2016.00073. eCollection 2016.

No abstract available.

[The role of diet in the pathogenesis of dental caries].

Revue francaise d'odonto-stomatologie

SIMONNET H.
PMID: 13112896
Rev Fr Odontostomatol. 1953 Sep-Oct;75(9):458-70.

No abstract available.

Icosahedral short-range order in deeply undercooled metallic melts.

Physical review letters

Schenk T, Holland-Moritz D, Simonet V, Bellissent R, Herlach DM.
PMID: 12190531
Phys Rev Lett. 2002 Aug 12;89(7):075507. doi: 10.1103/PhysRevLett.89.075507. Epub 2002 Jul 30.

Experimental evidence of icosahedral short-range order in stable and deeply undercooled melts of pure metallic elements is obtained using the combination of electromagnetic levitation with neutron scattering. This icosahedral short-range order is shown to occur in the bulk metallic...

Chaotic mixing in a steady flow in a microchannel.

Physical review letters

Simonnet C, Groisman A.
PMID: 15903994
Phys Rev Lett. 2005 Apr 08;94(13):134501. doi: 10.1103/PhysRevLett.94.134501. Epub 2005 Apr 04.

We report experiments on mixing of a passively advected fluorescent dye in a low Reynolds number flow in a microscopic channel. The channel is a chain of repeating segments with a custom designed profile that generates a steady three-dimensional...

Neighborhood Socioeconomic Characteristics, Birth Outcomes and Infant Mortality among First Nations and Non-First Nations in Manitoba, Canada.

The open women's health journal

Luo ZC, Wilkins R, Heaman M, Martens P, Smylie J, Hart L, Wassimi S, Simonet F, Wu Y, Fraser WD.
PMID: 22287997
Open Womens Health J. 2010;4:55-61. doi: 10.2174/1874291201004020055.

OBJECTIVE: Little is known about the possible impacts of neighborhood socioeconomic status on birth outcomes and infant mortality among Aboriginal populations. We assessed birth outcomes and infant mortality by neighborhood socioeconomic status among First Nations and non-First Nations in...

Role of antisymmetric exchange in selecting magnetic chirality in Ba3NbFe3Si2O14.

Physical review letters

Zorko A, Pregelj M, Potočnik A, van Tol J, Ozarowski A, Simonet V, Lejay P, Petit S, Ballou R.
PMID: 22243107
Phys Rev Lett. 2011 Dec 16;107(25):257203. doi: 10.1103/PhysRevLett.107.257203. Epub 2011 Dec 16.

We present an electron spin resonance (ESR) investigation of the acentric Ba(3)NbFe(3)Si(2)O(14), featuring a unique single-domain double-chiral magnetic ground state. Combining simulations of the ESR linewidth anisotropy and the antiferromagnetic-resonance modes allows us to single out the Dzyaloshinsky-Moriya (DM)...

The role of order-disorder transitions in the quest for molecular multiferroics: structural and magnetic neutron studies of a mixed valence iron(II)-iron(III) formate framework.

Journal of the American Chemical Society

Cañadillas-Delgado L, Fabelo O, Rodríguez-Velamazán JA, Lemée-Cailleau MH, Mason SA, Pardo E, Lloret F, Zhao JP, Bu XH, Simonet V, Colin CV, Rodríguez-Carvajal J.
PMID: 23130914
J Am Chem Soc. 2012 Dec 05;134(48):19772-81. doi: 10.1021/ja3082457. Epub 2012 Nov 19.

Neutron diffraction studies have been carried out to shed light on the unprecedented order-disorder phase transition (ca. 155 K) observed in the mixed-valence iron(II)-iron(III) formate framework compound [NH(2)(CH(3))(2)](n)[Fe(III)Fe(II)(HCOO)(6)](n). The crystal structure at 220 K was first determined from Laue...

THz magnetoelectric atomic rotations in the chiral compound Ba3NbFe3Si2O14.

Physical review letters

Chaix L, de Brion S, Lévy-Bertrand F, Simonet V, Ballou R, Canals B, Lejay P, Brubach JB, Creff G, Willaert F, Roy P, Cano A.
PMID: 25167309
Phys Rev Lett. 2013 Apr 12;110(15):157208. doi: 10.1103/PhysRevLett.110.157208. Epub 2013 Apr 12.

We have determined the terahertz spectrum of the chiral langasite Ba3NbFe3Si2O14 by means of synchrotron-radiation measurements. Two excitations are revealed that are shown to have a different nature. The first one, purely magnetic, is observed at low temperature in...

Rare Event Algorithm Links Transitions in Turbulent Flows with Activated Nucleations.

Physical review letters

Bouchet F, Rolland J, Simonnet E.
PMID: 30848628
Phys Rev Lett. 2019 Feb 22;122(7):074502. doi: 10.1103/PhysRevLett.122.074502.

Many turbulent flows undergo drastic and abrupt configuration changes with huge impacts. As a paradigmatic example we study the multistability of jet dynamics in a barotropic beta plane model of atmosphere dynamics. It is considered as the Ising model...

Showing 1 to 12 of 192 entries