pinecone/core-2020-05-10-deduplication huggingface dataset:
Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at s√=7 TeV using the ATLAS detector

A measurement of the top--antitop (tt¯) charge asymmetry is presented using data corresponding to an integrated luminosity of 4.6 fb−1 of LHC pp collisions at a centre-of-mass energy of 7 TeV collected by the ATLAS detector. Events with two charged leptons, at least two jets and large missing transverse momentum are selected. Two observables are studied: AℓℓC based on the identified charged leptons, and Att¯C, based on the reconstructed tt¯ final state. The asymmetries are measured to be 
AℓℓC=0.024±0.015 (stat.)±0.009 (syst.), Att¯C=0.021±0.025 (stat.)±0.017 (syst.).
The measured values are in agreement with the Standard Model predictions.We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; EPLANET, ERC and NSRF, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT and NSRF, Greece; RGC, Hong Kong SAR, China; ISF, MINERVA, GIF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; BRF and RCN, Norway; MNiSW and NCN, Poland; GRICES and FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MIZS, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America.r The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (U.K.) and BNL (U.S.A.) and in the Tier-2 facilities worldwide
Cutinase promotes dry esterification of cotton cellulose

Cutinase from Thermobifida fusca was used to esterify the hydroxyl groups of cellulose with the fatty acids from triolein. Cutinase and triolein were pre-adsorbed on cotton and the reaction proceeded in a dry state during 48 hours at 35ºC. The cutinase-catalyzed esterification of the surface of cotton fabric resulted in the linkage of the oleate groups to the glycoside units of cotton cellulose. The superficial modification was confirmed by performing ATR-FTIR on treated cotton samples and by MALDI-TOF analysis of the liquors from the treatment of the esterified cotton with a crude cellulase mixture. Modified cotton fabric also showed a significant increase of hydrophobicity. This work proposes a novel bio-based approach to obtain hydrophobic cotton. This article is protected by copyright. All rights reserved.This work is supported by Opening Project of National Engineering Laboratory for Modern Silk (Grant No. KJS1312); the National Natural Science Foundation of China (Grant No. 31201134 and No. 31470509); the Jiangsu Provincial Natural Science Foundation of China (Grant No.BK2012112), the Industry-academic Joint Technological Prospective Fund Project of Jiangsu Province (Grant No.BY2013015-24) and the Graduate Funding Program of Jiangnan University for Overseas Study
Determining the absolute abundance of dinoflagellate cysts in recent marine sediments : the Lycopdium marker-grain method put to the test

Absolute abundances (concentrations) of dinoflagellate cysts are often determined through the addition of Lycopodium clavatum marker-grains as a spike to a sample before palynological processing. An inter-laboratory calibration exercise was set up in order to test the comparability of results obtained in different laboratories, each using its own preparation method. Each of the 23 laboratories received the same amount of homogenized splits of four Quaternary sediment samples. The samples originate from different localities and consisted of a variety of lithologies. Dinoflagellate cysts were extracted and counted, and relative and absolute abundances were calculated. The relative abundances proved to be fairly reproducible, notwithstanding a need for taxonomic calibration. By contrast, excessive loss of Lycopodium spores during sample preparation resulted in non-reproducibility of absolute abundances. Use of oxidation, KOH, warm acids, acetolysis, mesh sizes larger than 15 µm and long ultrasonication (> 1 min) must be avoided to determine reproducible absolute abundances. The results of this work therefore indicate that the dinoflagellate cyst worker should make a choice between using the proposed standard method which circumvents critical steps, adding Lycopodium tablets at the end of the preparation and using an alternative method.\ud
\u
Search for first generation scalar leptoquarks in the eνjj channel in pp collisions at √s=7 TeV

Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMA search for pair-production of first generation scalar leptoquarks is performed in the final state containing an electron, a neutrino, and at least two jets using proton–proton collision data at √ s = 7 TeV. The data were collected by the CMS detector at the LHC, corresponding to an integrated luminosity of 36 pb−1. The number of observed events is in good agreement with the predictions for standard model processes. Prior CMS results in the dielectron channel are combined with this electron+ neutrino search. A 95% confidence level combined lower limit is set on the mass of a first generation scalar leptoquark at 339 GeV for β = 0.5, where β is the branching fraction of the leptoquark to an electron and a quark. These results represent the most stringent direct limits to date for values of β greater than 0.05We wish to thank Michael Kramer for providing the 7 TeV NLO LQ pair-production cross sections and to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA
The Krzyż conjecture revisited

The Krzyz conjecture concerns the largest values of the Taylor coefficients of a non-vanishing analytic function bounded by one in modulus in the unit disk. It has been open since 1968 even though information on the structure of extremal functions is available. The purpose of this paper is to collect various conditions that the coefficients of an extremal function (and various other quantities associated with it) should satisfy if the conjecture is true and to show that each one of these properties is equivalent to the conjecture itself. This may provide several possible starting points for future attempts at solving the problemThe first, third and fourth authors thankfully acknowledge partial support from MINECO grant MTM2012-37436-C02-02, Spain. Starting in 2014 the first author was supported by Academy of Finland grant 268009. The second author was supported by NSERC, Canada. The third author was also supported by NSF grant DMS-0901524, by NSF CAREER, Award No. DMS-1056965, and Sloan Research Fellowship, USA. The fourth author was partially supported by the European ESF Network HCAA (“Harmonic and Complex Analysis and Its Applications”) during
the period November 2009 - April 201
Vertex ring-indexed lie algebras.

Infinite dimensional Lie algebras are introduced, which are only partially graded, and are specified by indices lying on cyclotomic rings. They may be thought of as generalisations of the Onsager algebra, but unlike it or its sl(n) generalisations, they are not subalgebras of loop algebras associated with sln(n). In a particularly interesting ase associalte with sl(3), their indices lie on the Eisenstein integer triangular lattice and these algebras are expected to undelie vertex operator combinations in CFT, brane physics and graphite monolayers
A measurement of coherent neutral pion production in neutrino neutral current interactions in the NOMAD experiment

We present a Study of exclusive neutral pion production in neutrino-nucleus Neutral Current interactions using data from the NOMAD experiment at the CERN SPS. The data correspond to 1.44 x 10(6) muon-neutrino Charged Current interactions in the energy range 2.5 nu + A + pi(0) and single pi(0) production in neutrino-nucleon scattering. The signature of coherent pi(0) production is an emergent pi(0) almost collinear with the incident neutrino while pi(0)'s produced in neutrino-nucleon deep inelastic scattering have larger transverse momenta. In this analysis all relevant backgrounds to the coherent pi(0) production signal are measured using data themselves. Having determined the backgrounds, and using the Rein-Sehgal model for the coherent pi(0) production to compute the detection efficiency, we obtain 4630 +/- 522(stat) +/- 426(syst) corrected coherent-pi(0) events with E(pi 0) >= 0.5 GeV. We measure sigma(nu A -> nu A pi(0)) = 172.6 +/- 8.1 (stat) +/- 6.9(syst)] x 10(-40) cm(2)/nucleus. This is the most precise measurement of the coherent pi(0) production to date
Linear stability analysis and direct numerical simulation of two layer
  channel flow

We study the stability of two-fluid flow through a plane channel at Reynolds
numbers of a hundred to a thousand in the linear and nonlinear regimes. The two
fluids have the same density but different viscosities. The fluids, when
miscible, are separated from each other by a mixed layer of small but finite
thickness, across which viscosity changes from that of one fluid to that of the
other. When immiscible, the interface is sharp. Our study spans a range of
Schmidt numbers, viscosity ratios and location and thickness of the mixed
layer. A region of instability distinct from that of the Tollmien-Schlichting
mode is obtained at moderate Reynolds numbers. We show that the overlap of the
layer of viscosity-stratification with the critical layer of the dominant
disturbance provides a mechanism for this instability. At very low values of
diffusivity, the miscible flow behaves exactly like the immiscible in terms of
stability characteristics. High levels of miscibility make the flow more
stable. At intermediate levels of diffusivity however, in both linear and
non-linear regimes, miscible flow can be more unstable than the corresponding
immiscible flow without surface tension.Comment: 14 pages, 12 figure
Sivers asymmetry extracted in SIDIS at the hard scale of the Drell-Yan
  process at COMPASS

Proton transverse-spin azimuthal asymmetries are extracted from the COMPASS
2010 semi-inclusive hadron measurements in deep inelastic muon-nucleon
scattering in those four regions of the photon virtuality $Q^2$, which
correspond to the four regions of the di-muon mass $\sqrt{Q^2}$ used in the
ongoing analysis of the COMPASS Drell-Yan measurements. This allows for a
future direct comparison of the nucleon transverse-momentum-dependent parton
distribution functions extracted from these two alternative measurements.
Various two-dimensional kinematic dependences are presented for the azimuthal
asymmetries induced by the Sivers transverse-momentum-dependent parton
distribution function. The integrated Sivers asymmetries are found to be
positive with an accuracy that appears to be sufficient to test the sign change
of the Sivers function predicted by Quantum Chromodynamics.Comment: 13 pages, 6 figure
Large-N correlation functions in ${\cal N} = 2$ superconformal QCD

We study extremal correlation functions of chiral primary operators in the
large-N SU(N) ${\cal N} = 2$ superconformal QCD theory and present new results
based on supersymmetric localization. We discuss extensively the
basis-independent data that can be extracted from these correlators using the
leading order large-N matrix model free energy given by the four-sphere
partition function. Special emphasis is given to single-trace 2- and 3-point
functions as well as a new class of observables that are scalars on the
conformal manifold. These new observables are particular quadratic combinations
of the structure constants of the chiral ring. At weak 't Hooft coupling we
present perturbative results that, in principle, can be extended to arbitrarily
high order. We obtain closed-form expressions up to the first subleading order.
At strong coupling we provide analogous results based on an approximate
Wiener-Hopf method.Comment: 53 pages, 1 figur
Suppression of Upsilon(1S), Upsilon(2S), and Upsilon(3S) production in
  PbPb collisions at sqrt(s[NN]) = 2.76 TeV

The production yields of Upsilon(1S), Upsilon(2S), and Upsilon(3S) quarkonium
states are measured through their decays into muon pairs in the CMS detector,
in PbPb and pp collisions at the centre-of-mass energy per nucleon pair of 2.76
TeV. The data correspond to integrated luminosities of 166 inverse microbarns
and 5.4 inverse picobarns for PbPb and pp collisions, respectively.
Differential production cross sections are reported as functions of Upsilon
rapidity y up to 2.4, and transverse momentum pT up to 20 GeV/c. A strong
centrality-dependent suppression is observed in PbPb relative to pp collisions,
by factors of up to approximately 2 and 8, for the Upsilon(1S) and Upsilon(2S)
states, respectively. No significant dependence of this suppression is observed
as a function of y or pT. The Upsilon(3S) state is not observed in PbPb
collisions, which corresponds to a suppression for the centrality-integrated
data by at least a factor of approximately 7 at a 95% confidence level. The
observed suppression is in agreement with theoretical scenarios modeling the
sequential melting of quarkonium states in a quark gluon plasma.Comment: Replaced with the published version. Added the journal reference. All
  the figures and tables can be found at
  http://cms-results.web.cern.ch/cms-results/public-results/publications/HIN-15-001/index.htm
Deviations from Born-Oppenheimer mass scaling in spectroscopy and ultracold molecular physics.

We investigate Born-Oppenheimer breakdown (BOB) effects (beyond the usual mass scaling) for the electronic ground states of a series of homonuclear and heteronuclear alkali-metal diatoms, together with the Sr2 and Yb2 diatomics. Several widely available electronic structure software packages are used to calculate the leading contributions to the total isotope shift for commonly occurring isotopologs of each species. Computed quantities include diagonal Born-Oppenheimer corrections (mass shifts) and isotopic field shifts. Mass shifts dominate for light nuclei up to and including K, but field shifts contribute significantly for Rb and Sr and are dominant for Yb. We compare the ab initio mass-shift functions for Li2, LiK and LiRb with spectroscopically derived ground-state BOB functions from the literature. We find good agreement in the values of the functions for LiK and LiRb at their equilibrium geometries, but significant disagreement with the shapes of the functions for all 3 systems.The differences may be due to contributions of nonadiabatic terms to the empirical BOB functions. We present a semiclassical model for the effect of BOB corrections on the binding energies of near-threshold states and the positions of zero-energy Feshbach resonances
Investigating the glucagon receptor and GLP-1 receptor activity of Oxyntomodulin-like analogues in male Wistar rats

© 2015 The Authors.Aims: To investigate the effect of Glu-3 OXM-like analogues on food intake and bodyweight in male rats. Background: Oxyntomodulin (OXM) is a natural agonist at both the glucagon receptor (GCGr) and the glucagon-like peptide 1 receptor (GLP-1r), and peripheral administration reduces food intake and increases energy expenditure in rodents and humans. Substituting the native glutamine (Gln) at amino acid position 3 of OXM for glutamate (Glu) has previously been shown to diminish GCGr activity without affecting GLP-1r activity. The effects of Glu-3 OXM analogues have not been investigated in rats. Methods: The effect of 2 Glu-3-substituted OXM-like analogues (eg, OXM14E3 and OXM15E3) on food intake and body weight was investigated in male Wistar rats during 6 days of daily subcutaneous (SC) administration. The effects of Glu-3 substitution on analogue binding and activity at the rat GCGr and rat GLP-1 receptor were investigated in vitro using Chinese hamster ovary or Chinese hamster lung cells. Results: We report the novel finding that 2 5-nmol/kg Glu-3 OXM-like analogues (OXM14E3 and OXM15E3) significantly increased rat body weight by up to 4% compared with the equivalent non-Glu-3 analogues (OXM14 and OXM15), without affecting food intake. The effect of OXM15E3 on body weight was dose-dependent. Glu-3 analogues, including Glu-3 OXM, decreased glucagon-mediated cyclic adenosine monophosphate accumulation in Chinese hamster ovary cells expressing the rat GCGr, suggesting they may be acting as antagonists. Conclusions: The results indicate Glu-3 OXM-like analogues might not be suitable tools to investigate the mechanism of OXM analogue action in a rat model because they significantly increase body weight independent of food intake. Glu-3 OXM analogues are partial agonists at the rat GCGr and may also act as antagonists, possibly resulting in the observed increase in body weight
Surfactant-aided exfoliation of molybdenum disulfide for ultrafast pulse generation through edge-state saturable absorption

We use liquid phase exfoliation to produce dispersions of molybdenum disulfide (MoS2) nanoflakes in aqueous surfactant solutions. The chemical structures of the bile salt surfactants play a crucial role in the exfoliation and stabilization of MoS2. The resultant MoS2 dispersions are heavily enriched in single and few (<6) layer flakes with large edge to surface area ratio. We use the dispersions to fabricate free-standing polymer composite wide-band saturable absorbers to develop mode-locked and Q-switched fiber lasers, tunable from 1535 to 1565 and 1030 to 1070nm, respectively. We attribute this sub-bandgap optical absorption and its nonlinear saturation behavior to edge-mediated states introduced within the material band-gap of the exfoliated MoS2 nanoflakes
Shared values and deliberative valuation : Future directions

Valuation that focuses only on individual values evades the substantial collective and intersubjective meanings, significance and value from ecosystems. Shared, plural and cultural values of ecosystems constitute a diffuse and interdisciplinary field of research, covering an area that links questions around value ontology, elicitation and aggregation with questions of participation, ethics, and social justice. Synthesising understanding from various contributions to this Special Issue of Ecosystem Services, and with a particular focus on deliberation and deliberative valuation, we discuss key findings and present 35 future research questions in eight topic areas: 1) the ontology of shared values; 2) the role of catalyst and conflict points; 3) shared values and cultural ecosystem services; 4) transcendental values; 5) the process and outcomes of deliberation; 6) deliberative monetary valuation; 7) value aggregation, meta-values and ?rules of the game?; and 8) integrating valuation methods. The results of this Special Issue and these key questions can help develop a more extensive evidence base to mature the area and develop environmental valuation into a more pluralistic, comprehensive, robust, legitimate and effective way of safeguarding ecosystems and their services for the futurepublishersversionPeer reviewe
The use of close-range photogrammetry in zooarchaeology : Creating accurate 3D models of wolf crania to study dog domestication

Acknowledgements We thank the Muséum National d'Histoire Naturelle, Paris, that provided access to the specimens, and access to the morphometric platform where the surface scans were performed. We also thank Raphael Cornette and Julien Claude for the fruitful discussions we had when writing the manuscript. This work was supported by NERC (grant number NE/K003259/1) and the European Research Council (ERC-2013-StG 337574-UNDEAD). This is publication ISEM 2016-127. We thank the two anonymous reviewers who greatly helped to improve the manuscript.Peer reviewedPublisher PD
Search for first generation scalar leptoquarks in pp collisions at √s = 7 TeV with the ATLAS detector

We report a search for first generation scalar leptoquarks using 1.03 fb[superscript −1] of proton–proton collisions data produced by the Large Hadron Collider at √s = 7 TeV and recorded by the ATLAS experiment. Leptoquarks are sought via their decay into an electron or neutrino and a quark, producing events with two oppositely charged electrons and at least two jets, or events with an electron, missing transverse momentum and at least two jets. Control data samples are used to validate background predictions from Monte Carlo simulation. In the signal region, the observed event yields are consistent with the background expectations. We exclude at 95% confidence level the production of first generation scalar leptoquark with masses m[subscript LQ] < 660 (607) GeV when assuming the branching fraction of a leptoquark to a charged lepton is equal to 1.0 (0.5).European Organization for Nuclear ResearchUnited States. Dept. of EnergyNational Science Foundation (U.S.)Brookhaven National Laborator
Search for H → γγ produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector

A search is performed for Higgs bosons produced in association with top quarks using the diphoton decay mode of the Higgs boson. Selection requirements are optimized separately for leptonic and fully hadronic final states from the top quark decays. The dataset used corresponds to an integrated luminosity of 4.5 fbsuperscript 1] of proton–proton collisions at a center-of-mass energy of 7 TeV and 20.3 fb[superscript −1] at 8 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess over the background prediction is observed and upper limits are set on the t[bar over t]H production cross section. The observed exclusion upper limit at 95% confidence level is 6.7 times the predicted Standard Model cross section value. In addition, limits are set on the strength of the Yukawa coupling between the top quark and the Higgs boson, taking into account the dependence of the t[bar over t]H and tH cross sections as well as the H→γγ branching fraction on the Yukawa coupling. Lower and upper limits at 95% confidence level are set at −1.3 and +8.0 times the Yukawa coupling strength in the Standard Model.European Organization for Nuclear ResearchUnited States. Dept. of EnergyNational Science Foundation (U.S.)Brookhaven National Laborator