pinecone/core-2020-05-10-deduplication huggingface dataset:
Facial colorings using Hall's Theorem

International audienceA vertex coloring of a plane graph is ℓ-facial if every two distinct vertices joined by a facial walk of length at most ℓ receive distinct colors. It has been conjectured that every plane graph has an ℓ-facial coloring with at most 3ℓ+1 colors. We improve the currently best known bound and show that every plane graph has an ℓ-facial coloring with at most 7ℓ/2+6 colors. Our proof uses the standard discharging technique, however, in the reduction part we have successfully applied Hall's Theorem, which seems to be quite an unusual approach in this area
Measurement of the total cross section from elastic scattering in pp collisions at root s=7 TeV with the ATLAS detector

A measurement of the total pp cross section at the LHC at root s = 7 TeV is presented. In a special run with high-beta* beam optics, an integrated luminosity of 80 mu b(-1) was accumulated in order to measure the differential elastic cross section as a function of the Mandelstam momentum transfer variable t. The measurement is performed with the ALFA sub-detector of ATLAS. Using a fit to the differential elastic cross section in the vertical bar t vertical bar range from 0.01 GeV2 to 0.1 GeV2 to extrapolate to vertical bar t vertical bar --> 0, the total cross section, sigma(tot)(pp --> X), is measured via the optical theorem to be: sigma(tot)(pp --> X) = 95.35 +/- 0.38 (stat.) +/- 1.25 (exp.) +/- 0.37 (extr.) mb, where the first error is statistical, the second accounts for all experimental systematic uncertainties and the last is related to uncertainties in the extrapolation to vertical bar t vertical bar --> 0. In addition, the slope of the elastic cross section at small vertical bar t vertical bar is determined to be B = 19.73 +/- 0.14 (stat.) +/- 0.26 (syst.) GeV-2
Search for same-sign top-quark production and fourth-generation down-type quarks in pp collisions at root s=7 TeV with the ATLAS detector

A search is preseritecl for same-sign top-quark production and down-type heavy quarks of charge -1/3 in events with two isolated leptons (c or mu) that have the same electric charge, at least two jets and large missing transverse momentum. The data are selected from pp collisions at root s = 7 TeV recorded by the ATLAS detector and correspond to an integrated luminosity of 1.04 fb(-1). The observed data are consistent with expectations from Standard Model processes. Upper limits are set at 95% confidence level on the cross section of new sources of same-sign top-quark pair production of 1.4-2.0 pb depending on the assumed mediator mass. Upper limits are also set on the pair-production cross-section for new heavy down-type quarks; a lower limit of 450 GeV is set at 95% confidence level on the mass of heavy down-type quarks under the assumption that they decay 100% of the time to Wt
Gas lines from the 5-Myr old optically thin disk around HD 141569A

International audienceContext. The gas- and dust dissipation processes in disks around young stars remain uncertain despite numerous studies. At the distance of ~99–116 pc, HD 141569A is one of the nearest HerbigAe stars that is surrounded by a tenuous disk, probably in transition between a massive primordial disk and a debris disk. Atomic and molecular gases have been found in the structured 5-Myr old HD 141569A disk, making HD 141569A the perfect object within which to directly study the gaseous atomic and molecular component.Aims. We wish to constrain the gas and dust mass in the disk around HD 141569A.Methods. We observed the fine-structure lines of O i at 63 and 145 μm and the C ii line at 157 μm with the PACS instrument onboard the Herschel Space Telescope as part of the open-time large program GASPS. We complemented the atomic line observations with archival Spitzer spectroscopic and photometric continuum data, a ground-based VLT-VISIR image at 8.6 μm, and 12CO fundamental ro-vibrational and pure rotational J = 3–2 observations. We simultaneously modeled the continuum emission and the line fluxes with the Monte Carlo radiative transfer code MCFOST and the thermo-chemical code ProDiMo to derive the disk gas- and dust properties assuming no dust settling.Results. The models suggest that the oxygen lines are emitted from the inner disk around HD 141569A, whereas the [C ii] line emission is more extended. The CO submillimeter flux is emitted mostly by the outer disk. Simultaneous modeling of the photometric and line data using a realistic disk structure suggests a dust mass derived from grains with a radius smaller than 1 mm of ~2.1 × 10-7M⊙ and from grains with a radius of up to 1 cm of 4.9 × 10-6M⊙. We constrained the polycyclic aromatic hydrocarbons (PAH) mass to be between 2 × 10-11 and 1.4 × 10-10M⊙ assuming circumcircumcoronene (C150H30) as the representative PAH. The associated PAH abundance relative to hydrogen is lower than those found in the interstellar medium (3 × 10-7) by two to three orders of magnitude. The disk around HD 141569A is less massive in gas (2.5 to 4.9 × 10-4M⊙ or 67 to 164 M⊕) and has a flat opening angle (<10%).Conclusions. We constrained simultaneously the silicate dust grain, PAH, and gas mass in a ~5-Myr old Herbig Ae disk. The disk-averaged gas-to-dust-mass is most likely around 100, which is the assumed value at the disk formation despite the uncertainties due to disagreements between the different gas tracers. If the disk was originally massive, the gas and the dust would have dissipated at the same rate
‘Swim for Health’: barriers to participation for pre-school aged children and their families in an aquatic activity intervention in the North of England

‘Swim for Health’ was the first of a number of health initiatives instigated by the National Governing Body for Aquatic Activity in the UK, the Amateur Swimming Association. This initiative is a multi-agency partnership with the aims of increasing participation in aquatic activities and decreasing health inequalities across the region. Aquatic activity offers great potential for reducing obesity levels in at risk communities (e.g. Hardy 1990). A key group within this intervention was children of pre-school age and their parents in lower socio-economic groups.\ud
The study aimed to identify perceived barriers to participation in this group.\ud
26 semi-structured interviews and 12 focus groups were carried out with 54 individuals. All participants were female parents aged between 19 and 44 years. Questionnaires were completed with 132 individuals. These data were used to complement interview data. \ud
Results indicate only 50% of participants engaged in physical activity without their families. Participants’ male partners engaged more in physical activity alone, suggesting strong gender roles in physical activity choices. Where solitary physical activity was in evidence, perfecting the body through ‘bodywork’ was central. However, swimming was still popular as a family activity. Participants felt less self-conscious about the perceived deficiencies of their bodies when swimming with their families as they focussed instead on their children’s wellbeing, pool hygiene and risk. Hence, participants emphasised children’s water safety. Time constraints were a key barrier to participation. \ud
Despite participants stating their interest in swimming, significant barriers exist for this group. These barriers were often linked to gender roles
Search for events with large missing transverse momentum, jets, and at
  least two tau leptons in 7 TeV proton-proton collision data with the ATLAS
  detector

A search for events with large missing transverse momentum, jets, and at
least two tau leptons has been performed using 2 fb^-1 of proton-proton
collision data at sqrt(s) = 7 TeV recorded with the ATLAS detector at the Large
Hadron Collider. No excess above the Standard Model background expectation is
observed and a 95% CL visible cross section upper limit for new phenomena is
set. A 95% CL lower limit of 32 TeV is set on the GMSB breaking scale Lambda
independent of tan(beta). These limits provide the most stringent tests to date
in a large part of the considered parameter space.Comment: 6 pages plus author list (19 pages total), 3 figures, revised author
  list, matches published PLB versio
Experimental and theoretical approaches to conscious processing.

International audienceRecent experimental studies and theoretical models have begun to address the challenge of establishing a causal link between subjective conscious experience and measurable neuronal activity. The present review focuses on the well-delimited issue of how an external or internal piece of information goes beyond nonconscious processing and gains access to conscious processing, a transition characterized by the existence of a reportable subjective experience. Converging neuroimaging and neurophysiological data, acquired during minimal experimental contrasts between conscious and nonconscious processing, point to objective neural measures of conscious access: late amplification of relevant sensory activity, long-distance cortico-cortical synchronization at beta and gamma frequencies, and "ignition" of a large-scale prefronto-parietal network. We compare these findings to current theoretical models of conscious processing, including the Global Neuronal Workspace (GNW) model according to which conscious access occurs when incoming information is made globally available to multiple brain systems through a network of neurons with long-range axons densely distributed in prefrontal, parieto-temporal, and cingulate cortices. The clinical implications of these results for general anesthesia, coma, vegetative state, and schizophrenia are discussed
Characterization of graphs and digraphs with small process number

International audienceWe introduce the process number of a digraph as a tool to study rerouting issues in \wdm networks. This parameter is closely related to the vertex separation (or pathwidth). We consider the recognition and the characterization of (di)graphs with small process number. In particular, we give a linear time algorithm to recognize (and process) graphs with process number at most 2, along with a characterization in terms of forbidden minors, and a structural description. As for digraphs with process number 2, we exhibit a characterization that allows one to recognize (and process) them in polynomial time
Screening of ARHSP-TCC patients expands the spectrum of SPG11 mutations and includes a large scale gene deletion.

Autosomal recessive spastic paraplegia with thinning of corpus callosum (ARHSP-TCC)\ud
is a complex form of HSP initially described in Japan but subsequently reported to have\ud
a worldwide distribution with a particular high frequency in multiple families from the\ud
Mediterranean basin. We recently showed that ARHSP-TCC is commonly associated\ud
with mutations in SPG11/KIAA1840 on chromosome 15q. We have now screened a\ud
collection of new patients mainly originating from Italy and Brazil, in order to further\ud
ascertain the spectrum of mutations in SPG11, enlarge the ethnic origin of SPG11\ud
patients, determine the relative frequency at the level of single Countries (i.e., Italy), and\ud
establish whether there is one or more common mutation. In 25 index cases we identified\ud
32 mutations; 22 are novel, including 9 nonsense, 3 small deletions, 4 insertions, 1 in/del,\ud
1 small duplication, 1 missense, 2 splice-site, and for the first time a large genomic\ud
rearrangement. This brings the total number of SPG11 mutated patients in the\ud
SPATAX collection to 111 cases in 44 families and in 17 isolated cases, from 16\ud
Countries, all assessed using homogeneous clinical criteria. While expanding the\ud
spectrum of mutations in SPG11, this larger series also corroborated the notion that\ud
even within apparently homogeneous population a molecular diagnosis cannot be\ud
achieved without full gene sequencing
Rapid early Holocene sea-level rise in Prydz Bay, East Antarctica

Prydz Bay is one of the largest embayments on the East Antarctic coast and it is the discharge point for approximately 16% of the East Antarctic Ice Sheet. Geological constraints on the regional ice sheet history include evidence of past relative sea-level change at three sites; the Vestfold Hills, Rauer Islands and Larsemann Hills. In this paper we compile updated regional relative sea-level data from these sites. We compare these with a suite of relative sea-level predictions derived from glacial isostatic adjustment models and discuss the significance of departures between the models and the field evidence. The compiled geological data extend the relative sea-level curve for this region to 11,258 cal yr BP and include new constraints based on abandoned penguin colonies, new isolation basin data in the Vestfold Hills, validation of a submarine relative sea-level constraint in the Rauer Islands and recalibrated radiocarbon ages at all sites dating from 12,728 cal yr BP. The field data show rapid increases in rates of relative sea level rise of 12-48 mm/yr between 10,473 (or 9678) and 9411 cal yr BP in the Vestfold Hills and of 8.8 mm/yr between 8882 and 8563 cal yr BP in the Larsemann Hills. The relative sea-level high stands of >= 8.8 m from 9411 to after 7564 cal yr BP (Vestfold Hills) and >= 8 mat 8563 and 7066 cal yr BP (Larsemann Hills) are over-predicted by some of the glacial isostatic adjustment models considered here, suggesting that assumptions relating to the magnitude and timing of regional ice loss since the Last Glacial Maximum may need revising. In the Vestfold Hills and Rauer Islands the final deglacial sea-level rise was almost exactly cancelled out by local rebound between 9411 and 5967 cal yr BP and this was followed by a near exponential decay in relative sea-level. In the Larsemann Hills the sea-level data suggest that the rate of ice retreat in this region was not uniform throughout the Holocene. Swath bathymetric surveys of the benthic seafloor topography show the presence of multiple offshore basins. These are a priority for further study as those that remained free of grounded ice should provide precise constraints on relative sea-level rise and ice sheet history during the most rapid phases of the last major deglaciation
Angular analysis and branching fraction measurement of the decay B0→K*0μ+μ-

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 UAMThe angular distributions and the differential branching fraction of the decay B0→K*(892)0μ+μ- are studied using a data sample corresponding to an integrated luminosity of 5.2fb-1 collected with the CMS detector at the LHC in pp collisions at s=7TeV. From more than 400 signal decays, the forward-backward asymmetry of the muons, the K*(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the square of the dimuon invariant mass. The measurements are in good agreement with standard model predictionsWe acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWF and FWF (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); MoER, SF0690030s09 and ERDF(Estonia); Academy of Finland, MEC, 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(Republic of Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI(Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT(Portugal); JINR (Dubna); MON, RosAtom, RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEPCenter, IPST, STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU(Ukraine); STFC (United Kingdom); DOE and NSF (USA).
Individuals have received support from the Marie-Curie programme and the European Research Council and EPLANET (European Union); the Leventis Foundation; the A.P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation à la Recherche dans lʼIndustrie et dans lʼAgriculture (FRIA–Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie(IWT–Belgium); the Ministry of Education, Youth and Sports (MEYS) of Czech Republic; the Council of Science and Industrial Research, India; the Compagnia di San Paolo(Torino); the HOMING PLUS programme of Foundation for Polish Science, cofinanced by EU, Regional Development Fund; and the Thalis and Aristeia programmes cofinanced by EU–ESF and the Greek NSR
Time varying parameter and fixed parameter linear AIDS : an application to tourism demand forecasting

This study develops time varying parameter (TVP) linear almost ideal demand system (LAIDS) models in both long-run (LR) static and short-run error correction (EC) forms. The superiority of TVP-LAIDS models over the original static version and the fixed-parameter EC counterparts is examined in an empirical study of modelling and forecasting the demand for tourism in Western European destinations by UK residents. Both the long-run static and the short-run EC-LAIDS models are estimated using the Kalman filter algorithm. The evolution of demand elasticities over time is illustrated using the Kalman filter estimation results. The remarkably improved forecasting performance of the TVP-LAIDS relative to the fixed-parameter LAIDS is illustrated by a one-year- to four-years-ahead forecasting performance assessment. Both the unrestricted TVP-LR-LAIDS and TVP-EC-LAIDS outperform their fixed-parameter counterparts in the overall evaluation of demand level forecasts, and the TVP-EC-LAIDS is also ranked ahead of most other competitors when demand changes are concerned.School of Hotel and Tourism Management2005-2006 > Academic research: refereed > Publication in refereed journalpreprint_postprin
Cp*Ir(NHC) complexes as highly versatile and efficient catalysts for the cross-coupling of alcohols and amines

A comparative study on the catalytic activity of a series of Cp*Ir(NHC)Cl2
complexes in several C-O and C-N coupling processes implying hydrogen-borrowing
mechanisms has been performed. The compound Cp*Ir(InBu)Cl2 (InBu = 1,3-di-n-butylimidazolylidene) showed to be highly effective in the cross coupling reactions of
amines and alcohols, providing high yields in the production of unsymmetrical ethers
and N-alkylated amines. A remarkable feature is that the processes were carried out in
the absence of base, phosphine or any other external additive. A comparative study with
other well known catalysts, such as Shvo’s catalyst, is also reporte
Oxidative stress responses ti a graded maximal exercise test in older adults following explosive-type resistance training

We recently demonstrated that low frequency, moderate intensity, explosive-type resistance training (EMRT) is highly beneficial in elderly subjects towards muscle strength and power, with a systemic adaptive response of anti-oxidant and stress-induced markers. In the present study, we aimed to evaluate the impact of EMRT on oxidative stress biomarkers induced in old people (70–75 years) by a single bout of acute, intense exercise. Sixteen subjects randomly assigned to either a control, not exercising group (n=8) or a trained group performing EMRT protocol for 12-weeks (n=8), were submitted to a graded maximal exercise stress test (GXT) at baseline and after the 12-weeks of EMRT protocol, with blood samples collected before, immediately after, 1 and 24 h post-GXT test. Blood glutathione (GSH, GSSG, GSH/GSSG), plasma malonaldehyde (MDA), protein carbonyls and creatine kinase (CK) levels, as well as PBMCs cellular damage (Comet assay, apoptosis) and stress–protein response (Hsp70 and Hsp27 expression) were evaluated. The use of multiple biomarkers allowed us to confirm that EMRT per se neither affected redox homeostasis nor induced any cellular and oxidative damage. Following the GXT, the EMRT group displayed a higher GSH/GSSG ratio and a less pronounced increase in MDA, protein carbonyls and CK levels compared to control group. Moreover, we found that Hsp70 and Hsp27 proteins were induced after GXT only in EMRT group, while any significant modification within 24 h was detected in untrained group. Apoptosis rates and DNA damage did not show any significant variation in relation to EMRT and/or GXT. In conclusion, the adherence to an EMRT protocol is able to induce a cellular adaptation allowing healthy elderly trained subjects to cope with the oxidative stress induced by an acute exercise more effectively than the aged-matched sedentary subjects
Detailed analysis of slow oscillatory movements of eye position

Our eyes make continuous movements even when attempting to fixate a stationary 
object. The involuntary eye movements occurring during fixation are referred to as 
fixational eye movements. There is a general agreement on three types of eye 
movements occurring during visual fixation: tremor, drift and microsaccade. 
Previously, in a 20-minute long recording of eye position during visual fixation, we 
observed a slow periodic fluctuation in the eye position signal. The characteristics 
of this fluctuation did not match any of the three known components normally 
occurring during visual fixation on healthy subjects.




The hypothesis in this thesis has been that the slow fluctuation found in the 
recording is a never before described, fourth component of the fixational eye 
movement system. The aim of the project has been to test this hypothesis and to 
further elaborate the underlying control mechanism of this slow eye movement 
component. Study 1: The main purpose of this first study was to prove that the 
fluctuation was not an artifact due to recording system, sampling frequency or 
filtering technique. The analysis procedure to filter out the fluctuation was 
developed and tested. Study 2: The influence of different visual stimuli was 
evaluated to investigate the perceptual influence on the oscillation. Study 3: The 
effect of increased extraocular muscle tonus was explored during a convergence 
task.



  
The results indicate that a slow oscillatory movement occurs during visual fixation 
together with tremor, drift and microsaccade. This slow eye movement has a low 
frequency of 0.04 to 0.10 Hz and amplitude of less than 0.50 degrees. The 
underlying control mechanisms for amplitude and frequency are different: visual 
perception seems to have an effect solely on the amplitude whereas varying muscle 
force only changes the frequency.



 
It has not been the purpose to describe the underlying reason for why the eyes 
oscillate and we still have no clear idea of why this oscillation is present in normal 
healthy subjects. We speculate that the light energy in the optical focus is 
distributed in an oscillatory mode around the fovea that might be a retina 
protective mechanism
CP, T and CPT versus temporal asymmetries for entangled states of the B-d-system

The observables used in the K-system to characterize T and CPT violation are no longer useful for the Bd-system, since the width difference between the physical states is vanishingly small. We show that only Im(epsilon) and Re(delta) can survive if Delta Gamma=0, and build alternative CP-odd, CPT-odd, T-odd and temporal asymmetries for the (B_CP -> B0, B0bar) transitions. These quantities enable us to test T and CPT invariances of the effective Hamiltonian for the B-system. The method needs the CP eigenstates B_CP, which can be tagged unambiguously to order lambda^3 from the entangled states of a B-factory