pinecone/core-2020-05-10-deduplication huggingface dataset:
Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in s√= 8TeV pp collisions with the ATLAS detector

A search for the direct production of charginos and neutralinos in final states with three leptons and missing transverse momentum is presented. The analysis is based on 20.3 fb−1 of s√ = 8 TeV proton-proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with the Standard Model expectations and limits are set in R-parity-conserving phenomenological Minimal Supersymmetric Standard Models and in simplified supersymmetric models, significantly extending previous results. For simplified supersymmetric models of direct chargino (χ˜±1) and next-to-lightest neutralino (χ˜02) production with decays to lightest neutralino (χ˜01) via either all three generations of sleptons, staus only, gauge bosons, or Higgs bosons, (χ˜±1) and (χ˜02) masses are excluded up to 700 GeV, 380 GeV, 345 GeV, or 148 GeV respectively, for a massless (χ˜01) .We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF 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; 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 ROSATOM, 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
Film blowing of PHBV blends and PHBV-based multilayers for the production of biodegradable packages

Poly(hydroxy butyrate-co-valerate) (PHBV) is a biodegradable polymer that is difficult to melt process into films. Such difficulty is mirrored in the lack of literature on film blowing of PHBV- or PHBV-based materials. To circumvent this problem, 70/30 wt % blends of PHBV with a biodegradable compound (PBSebT), or with poly(butylene adipate-co-terephtalate) (PBAT), were prepared and tested for extrusion film blowing. Both blends showed a similar rheological pattern at 175°C, which is the maximum processing temperature with tolerable thermal degradation. Blending stabilized the film bubbles, thus widening the processing window. However, film properties such as tensile modulus, strain at break and tear resistance remained isotropic and crystallinity characteristics in the machine and transverse directions were generally similar. To bypass the thermal degradation associated with polymer blending, PHBV/PBAT films were coextruded. These showed enhanced functional properties when compared with films blown from blends. The mechanical properties of bilayered films matched those of films blown from commercial PBAT designed for food packaging.The authors acknowledge the European Commission for the financial support of the ECOefficient BIOdegradable Composite Advanced Packaging project (EcoBioCAP) within the Seventh Framework Programme (Contract-No. FP7-265669). This work was also supported by FEDER funds through the program COMPETE (project PTDC/AGR-ALI/122741/2010), by the Portuguese Foundation for Science and Technology (PEst-C/CTM/LA0025/2013 - Projecto Estrategico - LA 25 - 2013-2014 - Strategic Project - LA 25 - 2013-2014) and by Programa Operacional Regional do Norte (ON.2) through project "Matepro - Optimizing Materials and Processes", with reference NORTE-07-0124-FEDER-000037 FEDER COMPETE
Measurement of the production of neighbouring jets in lead-lead collisions at √sNN=2.76 TeV with the ATLAS detector

This Letter presents measurements of correlated production of nearby jets in Pb+Pb collisions at sNN−−−√=2.76 TeV using the ATLAS detector at the Large Hadron Collider. The measurement was performed using 0.14 nb−1 of data recorded in 2011. The production of correlated jet pairs was quantified using the rate, RΔR, of ``neighbouring'' jets that accompany ``test'' jets within a given range of angular distance, ΔR, in the pseudorapidity--azimuthal angle plane. The jets were measured in the ATLAS calorimeter and were reconstructed using the anti-kt algorithm with radius parameters d=0.2, 0.3, and 0.4. RΔR was measured in different Pb+Pb collision centrality bins, characterized by the total transverse energy measured in the forward calorimeters. A centrality dependence of RΔR is observed for all three jet radii with RΔR found to be lower in central collisions than in peripheral collisions. The ratios formed by the RΔR values in different centrality bins and the values in the 40--80 % centrality bin are presented.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; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russian Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZS, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, the Canada Council, CANARIE, CRC, Compute Canada, FQRNT, and the Ontario Innovation Trust, Canada; EPLANET, ERC, FP7, Horizon 2020 and Marie Sklodowska-Curie Actions, European Union; Investissements d'Avenir Labex and Idex, ANR, Region Auvergne and Fondation Partager le Savoir, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF; BSF, GIF and Minerva, Israel; BRF, Norway; the Royal Society and Leverhulme Trust, United Kingdom
A search for debris disks in the Herschel-ATLAS

Aims. We aim to demonstrate that the Herschel-ATLAS (H-ATLAS) is suitable for a blind and unbiased survey for debris disks by identifying candidate debris disks associated with main sequence stars in the initial science demonstration field of the survey. We show that H-ATLAS reveals a population of far-infrared/sub-mm sources that are associated with stars or star-like objects on the SDSS main-sequence locus. We validate our approach by comparing the properties of the most likely candidate disks to those of the known population.
Methods. We use a photometric selection technique to identify main sequence stars in the SDSS DR7 catalogue and a Bayesian Likelihood Ratio method to identify H-ATLAS catalogue sources associated with these main sequence stars. Following this photometric selection we apply distance cuts to identify the most likely candidate debris disks and rule out the presence of contaminating galaxies using UKIDSS LAS K-band images.
Results. We identify 78 H-ATLAS sources associated with SDSS point sources on the main-sequence locus, of which two are the most likely debris disk candidates: H-ATLAS J090315.8 and H-ATLAS J090240.2. We show that they are plausible candidates by comparing their properties to the known population of debris disks. Our initial results indicate that bright debris disks are rare, with only 2 candidates identified in a search sample of 851 stars. We also show that H-ATLAS can derive useful upper limits for debris disks associated with Hipparcos stars in the field and outline the future prospects for our debris disk search programme
Search for diphoton events with large missing transverse momentum in 7 TeV proton-proton collision data with the ATLAS detector

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 diphoton events with large missing transverse momentum has been performed using proton– proton collision data at √ s = 7 TeV recorded with the ATLAS detector, corresponding to an integrated luminosity of 4.8 fb−1. No excess of events was observed above the Standard Model prediction and model-dependent 95% confidence level exclusion limits are set. In the context of a generalised model of gauge-mediated supersymmetry breaking with a bino-like lightest neutralino of mass above 50 GeV, gluinos (squarks) below 1.07 TeV (0.87 TeV) are excluded, while a breaking scale Λ below 196 TeV is excluded for a minimal model of gauge-mediated supersymmetry breaking. For a specific model with one universal extra dimension, compactification scales 1/R < 1.40 TeV are excluded. These limits provide the most stringent tests of these models to dateWe thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF 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 and ERC, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, 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. 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), NLT1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA) and in the Tier-2 facilities worldwid
Microwave Assisted Synthesis of Dihydrobenzo[4,5]Imidazo[1,2-A]Pyrimidin-4-Ones; Synthesis, In Vitro Antimicrobial and Anticancer Activities of Novel Coumarin Substituted Dihydrobenzo[4,5]Imidazo[1,2-A]Pyrimidin-4-Ones

The present article describes the synthesis of dihydrobenzo[4,5]imidazo[1,2-a]pyrimidin-4-one (2a–h) under microwave irradiation. The product was obtained in excellent yield (74–94%) in a shorter reaction time (2 min). These molecules (2a, b) further reacted with various substituted 4-bromomethylcoumarins (3a–f) to yield a new series of coumarin substituted dihydrobenzo[4,5]imidazo[1,2-a]pyrimidin-4-ones (4a–h). The structure of all the synthesized compounds were confirmed by spectral studies and screened for their in vitro antibacterial activity against three Gram-positive bacteria viz., Staphylococcus aureus, Enterococcus faecalis, Streptococcus mutans and three Gram-negative bacteria viz., Escherichia coli, Klebsiella pneumonia, Pseudomonas aeruginosa and antifungal activity against Candida albicans, Aspergillus niger, Aspergillus fumigatus, Aspergillus flavus, Fusarium oxysporum, Penicillium chrysogenum and anticancer activity against Dalton's Ascitic Lymphoma (DAL) cell line.\ud
In general, all the compounds possessed better antifungal properties than antibacterial properties. The coumarin substituted dihydrobenzo[4,5]imidazo[1,2-a]pyrimidin-4-one (4g) (R = i-Pr, R1 = 6-Cl) was found to be the most potent cytotoxic compound (88%) against Dalton's Ascitic Lymphoma cell line at the concentration of 100 µg/mL
Adaptive data migration scheme with facilitator database and multi-tier distributed storage in LHD

Recent “data explosion” induces the demand for high flexibility of storage extension and data migration. The data amount of LHD plasma diagnostics has grown 4.6 times bigger than that of three years before. Frequent migration or replication between plenty of distributed storage becomes mandatory, and thus increases the human operational costs. To reduce them computationally, a new adaptive migration scheme has been developed on LHD’s multi-tier distributed storage. So-called the HSM (Hierarchical Storage Management) software usually adopts a low-level cache mechanism or simple watermarks for triggering the data stage-in and out between two storage devices. However, the new scheme can deal with a number of distributed storage by the facilitator database that manages the whole data locations with their access histories and retrieval priorities. Not only the inter-tier migration but also the intra-tier replication and moving are even manageable so that it can be a big help in extending or replacing storage equipment. The access history of each data object is also utilized to optimize the volume size of fast and costly RAID, in addition to a normal cache effect for frequently retrieved data. The new scheme has been verified its effectiveness so that LHD multi-tier distributed storage and other next-generation experiments can obtain such the flexible expandability
Massive photons from Super and Lorentz symmetry breaking

In the context of Standard Model Extensions (SMEs), we analyse four general
classes of Super Symmetry (SuSy) and Lorentz Symmetry (LoSy) breaking, leading
to {observable} imprints at our energy scales. The photon dispersion relations
show a non-Maxwellian behaviour for the CPT (Charge-Parity-Time reversal
symmetry) odd and even sectors. The group velocities exhibit also a directional
dependence with respect to the breaking background vector (odd CPT) or tensor
(even CPT). In the former sector, the group velocity may decay following an
inverse squared frequency behaviour. Thus, we extract a massive and gauge
invariant Carroll-Field-Jackiw photon term in the Lagrangian and show that the
mass is proportional to the breaking vector. The latter is estimated by ground
measurements and leads to a photon mass upper limit of $10^{-19}$ eV or $2
\times 10^{-55}$ kg and thereby to a potentially measurable delay at low radio
frequencies
Search for substellar-mass companions and asymmetries in their parent
  discs

Transitional discs are a class of circumstellar discs around young stars with
extensive clearing of dusty material within their inner regions on 10s of au
scales. One of the primary candidates for this kind of clearing is the
formation of planet(s) within the disc that then accrete or clear their
immediate area as they migrate through the disc.
  Our sample included eight transitional discs. Using the Keck/NIRC2 instrument
we utilised the Sparse Aperture Masking (SAM) interferometry technique to
search for asymmetries indicative of ongoing planet formation. We searched for
close-in companions using both model fitting and interferometric image
reconstruction techniques. Using simulated data, we derived diagnostics that
helped us to distinguish between point sources and extended asymmetric disc
emission. In addition, we investigated the degeneracy between the contrast and
separation that appear for marginally resolved companions.
  We found FP Tau to contain a previously unseen disc wall, and DM Tau, LkHa
330, and TW Hya to contain an asymmetric signal indicative of point source-like
emission.
  We placed upper limits on the contrast of a companion in RXJ1842.9-3532 and
V2246 Oph. We ruled the asymmetry signal in RXJ1615.3-3255 and V2062 Oph to be
false positives.
  In the cases where our data indicated a potential companion we computed
estimates for the value of $M_c \dot M_c$ and found values in the range of
$10^{-5} - 10^{-3} M^2_J yr^{-1}$.
  We found significant asymmetries in four targets. Of these, three were
consistent with companions. We resolved a previously unseen gap in the disc of
FP Tau extending inwards from approximately 10 au.Comment: 14 pages, 12 figures, A&A, accepte
Giant planet formation at the pressure maxima of protoplanetary disks

In the classical core-accretion planet formation scenario, rapid inward
migration and accretion timescales of kilometer size planetesimals may not
favor the formation of massive cores of giant planets before the dissipation of
protoplanetary disks. On the other hand, the existence of pressure maxima in
the disk could act as migration traps and locations for solid material
accumulation, favoring the formation of massive cores. We aim to study the
radial drift of pebbles and planetesimals and planet migration at pressure
maxima in a protoplanetary disk and their implications for the formation of
massive cores as triggering a gaseous runaway accretion phase. The time
evolution of a viscosity driven accretion disk is solved numerically
introducing a a dead zone as a low-viscosity region in the protoplanetary disk.
A population of pebbles and planetesimals evolving by radial drift and
accretion by the planets is also considered. Finally, the embryos embedded in
the disk grow by the simultaneous accretion of pebbles, planetesimals and the
surrounding gas. Our simulations show that the pressure maxima generated at the
edges of the low-viscosity region of the disk act as planet migration traps,
and that the pebble and planetesimal surface densities are significantly
increased due to the radial drift towards pressure maxima locations. However,
our simulations also show that migration trap locations and solid material
accumulation locations are not exactly at the same positions. Thus, a planet's
semi-major axis oscillations around zero torque locations, predicted by MHD and
HD simulations, are needed for the planet to accrete all the available material
accumulated at the pressure maxima. Pressure maxima generated at the edges of a
low-viscosity region of a protoplanetary disk seem to be preferential locations
for the formation and trap of massive cores.Comment: Accepted for publication in A&A, comments are welcom
A multi-wavelength survey of AGN in the XMM-LSS field I. Quasar selection via the KX technique

Aims. We present a sample of candidate quasars selected using the KX-technique. The data cover 0.68 deg2 of the X-ray Multi-Mirror (XMM) Large-Scale Structure (LSS) survey area where overlapping multi-wavelength imaging data permits an investigation of the physical nature of selected sources.\ud
Methods. The KX method identifies quasars on the basis of their optical (R and z') to near-infrared $(K_{\rm s})$ photometry and point-like morphology. We combine these data with optical (u*,g', r',i',z') and mid-infrared (3.6-24  $\mu$m) wavebands to reconstruct the spectral energy distributions (SEDs) of candidate quasars.\ud
Results. Of 93 sources selected as candidate quasars by the KX method, 25 are classified as quasars by the subsequent SED analysis. Spectroscopic observations are available for 12/25 of these sources and confirm the quasar hypothesis in each case. Even more, 90% of the SED-classified quasars show X-ray emission, a property not shared by any of the false candidates in the KX-selected sample. Applying a photometric redshift analysis to the sources without spectroscopy indicates that the 25 sources classified as quasars occupy the interval 0.7 $\le$ z $\le$ 2.5. The remaining 68/93 sources are classified as stars and unresolved galaxies.Peer-reviewedPublisher Versio
Proceedings of a Sickle Cell Disease Ontology workshop - Towards the first comprehensive ontology for Sickle Cell Disease

Sickle cell disease (SCD) is a debilitating single gene disorder caused by a single point mutation that results in physical deformation (i.e. sickling) of erythrocytes at reduced oxygen tensions. Up to 75% of SCD in newborns world-wide occurs in sub-Saharan Africa, where neonatal and childhood mortality from sickle cell related complications is high. While SCD research across the globe is tackling the disease on multiple fronts, advances have yet to significantly impact on the health and quality of life of SCD patients, due to lack of coordination of these disparate efforts. Ensuring data across studies is directly comparable through standardization is a necessary step towards realizing this goal. Such a standardization requires the development and implementation of a disease-specific ontology for SCD that is applicable globally. Ontology development is best achieved by bringing together experts in the domain to contribute their knowledge. The SCD community and H3ABioNet members joined forces at a recent SCD Ontology workshop to develop an ontology covering aspects of SCD under the classes: phenotype, diagnostics, therapeutics, quality of life, disease modifiers and disease stage. The aim of the workshop was for participants to contribute their expertise to development of the structure and contents of the SCD ontology. Here we describe the proceedings of the Sickle Cell Disease Ontology Workshop held in Cape Town South Africa in February 2016 and its outcomes. The objective of the workshop was to bring together experts in SCD from around the world to contribute their expertise to the development of various aspects of the SCD ontology
Transcriptional profiling identifies the long noncoding RNA plasmacytoma variant translocation (PVT1) as a novel regulator of the asthmatic phenotype in human airway smooth muscle

Background: The mechanism underlying non-severe and severe asthma remains unclear although it is commonly associated with increased airway smooth muscle (ASM) mass. Long non-coding RNAs (lncRNAs) are known to be important in regulating healthy primary ASM cells whilst changed expression has been observed in CD8 T-cells from patients with severe asthma. Methods: Primary ASM cells were isolated from healthy individuals (n=9), patients classified as having non-severe asthma (n=9) or severe asthma (n=9). ASM cells were exposed to dexamethasone and fetal calf serum (FCS). mRNA and lncRNA expression was measured by microarray and quantitative real-time PCR. Bioinformatic analysis was used to examine for relevant biological pathways. Finally, the lncRNA; Plasmacytoma Variant Translocation (PVT1) was inhibited by transfection of primary ASM cells with siRNAs, and the effect upon ASM cell phenotype was examined. Results: The mRNA expression profile was significantly different between patient groups following exposure to dexamethasone and FCS and these were associated with biological pathways that may be relevant to the pathogenesis of asthma including cellular proliferation and pathways associated with glucocorticoid activity. We also observed a significant change in the expression of lncRNAs, yet only one (PVT1) is decreased in expression in the corticosteroid sensitive non-severe asthmatics, and increased in expression in the corticosteroid-insensitive severe asthmatics. Subsequent targeting studies demonstrated the importance of this lncRNA in controlling both proliferation and IL-6 release in ASM cells from patients with severe asthma. Conclusions: lncRNAs are associated with the aberrant phenotype observed in ASM cells from patients with asthma. Targeting of PVT1 may be effective in reducing airway remodelling in asthma