pinecone/core-2020-05-10-deduplication huggingface dataset:
Rapidity and transverse-momentum dependence of the inclusive J/psi nuclear modification factor in p-Pb collisions at root s(NN)=5.02 TeV

We have studied the transverse-momentum (p(T)) dependence of the inclusive J/psi production in p-Pb collisions at root s(NN) = 5.02 TeV, in three center-of-mass rapidity (y(cms)) regions, down to zero p(T). Results in the forward and backward rapidity ranges (2.03 &lt; y(cms) &lt; 3.53 and -4.46 &lt; y(cms) &lt; -2.96) are obtained by studying the J/psi decay to mu(+)mu(-), while the mid-rapidity region (-1.37 &lt; y(cms) &lt; 0.43) is investigated by measuring the e(+)e(-) decay channel. The p(T) dependence of the J/psi production cross section and nuclear modification factor are presented for each of the rapidity intervals, as well as the J/psi mean p(T) values. Forward and mid-rapidity results show a suppression of the J/psi yield, with respect to pp collisions, which decreases with increasing p(T). At backward rapidity no significant J/psi suppression is observed. Theoretical models including a combination of cold nuclear matter effects such as shadowing and partonic energy loss, are in fair agreement with the data, except at forward rapidity and low transverse momentum. The implications of the p-Pb results for the evaluation of cold nuclear matter effects on J/psi production in Pb-Pb collisions are also discussed
Search for disappearing tracks in proton-proton collisions at sqrt(s) = 8 TeV

A search is presented for long-lived charged particles that decay within the CMS detector and produce the signature of a disappearing track. Disappearing tracks are identified as those with little or no associated calorimeter energy deposits and with missing hits in the outer layers of the tracker. The search uses proton-proton collision data recorded at sqrt(s) = 8 TeV that corresponds to an integrated luminosity of 19.5 inverse femtobarns. The results of the search are interpreted in the context of the anomaly-mediated supersymmetry breaking (AMSB) model. The number of observed events is in agreement with the background expectation, and limits are set on the cross section of direct electroweak chargino production in terms of the chargino mass and mean proper lifetime. At 95% confidence level, AMSB models with a chargino mass less than 260 GeV, corresponding to a mean proper lifetime of 0.2 ns, are excluded
Testing Grumillerʼs modified gravity at galactic scales

Using galactic rotation curves, we test a – quantum motivated – gravity model that at large distances modifies the Newtonian potential when spherical symmetry is considered. In this model one adds a Rindler acceleration term to the rotation curves of disk galaxies. Here we consider a standard and a power-law generalization of the Rindler modified Newtonian potential that are hypothesized to play the role of dark matter in galaxies. The new, universal acceleration has to be – phenomenologically – determined. Our galactic model includes the mass of the integrated gas and stars for which we consider a free mass model. We test the model by fitting rotation curves of thirty galaxies that has been employed to test other alternative gravity models. We find that the Rindler parameters do not perform a suitable fit to the rotation curves in comparison to the Burkert dark matter profile, but the models achieve a similar fit as the NFWʼs profile does. However, the computed parameters of the Rindler gravity show some spread, posing the model to be unable to consistently explain the observed rotation curves
New determination of the D0→K−π+π0 and D0→K−π+π+π− coherence factors and average strong-phase differences

Measurements of the coherence factors ( RKππ0 and RK3π ) and the average strong-phase differences ( δKππ0D and δK3πD ) for the decays D0→K−π+π0 and D0→K−π+π+π− are presented. These parameters are important inputs to the determination of the unitarity triangle angle γ in B∓→DK∓ decays, where D designates a D0 or D¯0 meson decaying to a common final state. The measurements are made using quantum correlated DD¯ decays collected by the CLEO-c experiment at the ψ(3770) resonance, and augment a previously published analysis by the inclusion of new events in which the signal decay is tagged by the mode D→K0Sπ+π− . The measurements also benefit from improved knowledge of external inputs, namely the D0D¯0 mixing parameters, rKπD and several D -meson branching fractions. The measured values are RKππ0=0.82±0.07 , δKππ0D=(164+20−14)° , RK3π=0.32+0.20−0.28 and δK3πD=(225+21−78)° . Consideration is given to how these measurements can be improved further by using the larger quantum-correlated data set collected by BESIII
Gauge and matter superfield theories on S 2

We develop a superfield formulation of gauge and matter field theories on a two-dimensional sphere with rigid N = 2 2 $$ \mathcal{N}=\left(2,2\right) $$ as well as extended supersymmetry. The construction is based on a supercoset SU 2 1 U 1 × U 1 $$ \frac{\mathrm{SU}\left(\left.2\right|1\right)}{\mathrm{U}(1)\times \mathrm{U}(1)} $$ containing S 2 as the bosonic subspace. We derive an explicit form of supervielbein and covariant derivatives on this coset, and use them to construct classical superfield actions for gauge and matter supermultiplets in this superbackground. We then apply superfield methods for computing one-loop partition functions of these theories and demonstrate how the localization technique works directly in the superspace
Quantum spin models for the SU(n)1 Wess–Zumino–Witten model

We propose 1D and 2D lattice wave functions constructed from the SU(n)1 Wess–Zumino–Witten (WZW) model and derive their parent Hamiltonians. When all spins in the lattice transform under SU(n) fundamental representations, we obtain a two-body Hamiltonian in 1D, including the SU(n) Haldane–Shastry model as a special case. In 2D, we show that the wave function converges to a class of Halperin's multilayer fractional quantum Hall states and belongs to chiral spin liquids. Our result reveals a hidden SU(n) symmetry for this class of Halperin states. When the spins sit on bipartite lattices with alternating fundamental and conjugate representations, we provide numerical evidence that the state in 1D exhibits quantum criticality deviating from the expected behaviors of the SU(n)1 WZW model, while in 2D they are chiral spin liquids being consistent with the prediction of the SU(n)1 WZW model
The role of Glauber exchange in soft collinear effective theory and the Balitsky–Fadin–Kuraev–Lipatov Equation

In soft collinear effective theory (SCET) the interaction between high energy quarks moving in opposite directions involving momentum transfer much smaller than the center-of-mass energy is described by the Glauber interaction operator which has two-dimensional Coulomb-like behavior. Here, we determine this n – <math altimg="si1.gif" xmlns="http://www.w3.org/1998/Math/MathML"><mover accent="true"><mrow><mi>n</mi></mrow><mrow><mo stretchy="false">¯</mo></mrow></mover></math> collinear Glauber interaction operator and consider its renormalization properties at one loop. At this order a rapidity divergence appears which gives rise to an infrared divergent (IR) rapidity anomalous dimension commonly called the gluon Regge trajectory. We then go on to consider the forward quark scattering cross section in SCET. The emission of real soft gluons from the Glauber interaction gives rise to the Lipatov vertex. Squaring and adding the real and virtual amplitudes results in a cancelation of IR divergences, however the rapidity divergence remains. We introduce a rapidity counter-term to cancel the rapidity divergence, and derive a rapidity renormalization group equation which is the Balitsky–Fadin–Kuraev–Lipatov Equation. This connects Glauber interactions with the emergence of Regge behavior in SCET
The polarization observables T , P , and H and their impact on γp→pπ0 multipoles

Data on the polarization observables T , P , and H for the reaction γp→pπ0 are reported. Compared to earlier data from other experiments, our data are more precise and extend the covered range in energy and angle substantially. The results were extracted from azimuthal asymmetries measured using a transversely polarized target and linearly polarized photons. The data were taken at the Bonn electron stretcher accelerator ELSA with the CBELSA/TAPS detector. Within the Bonn-Gatchina partial wave analysis, the new polarization data lead to a significant narrowing of the error band for the multipoles for neutral-pion photoproduction
Probing the quark–gluon interaction with hadrons

We present a unified picture of mesons and baryons in the Dyson–Schwinger/Bethe–Salpeter approach, wherein the quark–gluon and quark–(anti)quark interactions follow from a systematic truncation of the QCD effective action and include all its tensor structures. The masses of some of the ground-state mesons and baryons are found to be in reasonable agreement with the expectations of a ‘quark-core calculation’, suggesting a partial insensitivity to the details of the quark–gluon interaction. However, discrepancies remain in the meson sector, and for excited baryons, that suggest higher order corrections are relevant and should be investigated following the methods outlined herein
Soft gluon resummation in the signal-background interference process of gg (→ h ∗ ) → ZZ

We present a precise theoretical prediction for the signal-background interference process of gg (→ h ∗ ) → ZZ , which is useful to constrain the Higgs boson decay width and to measure Higgs couplings to the SM particles. The approximate NNLO K -factor is in the range of 2 . 05 − 2 . 45 (1 . 85 − 2 . 25), depending on M ZZ , at the 8 (13) TeV LHC. And the soft gluon resummation can increase the approximate NNLO result by about 10% at both the 8 TeV and 13 TeV LHC. The theoretical uncertainties including the scale, uncalculated multi-loop amplitudes of the background and PDF+α s are roughly O 10 % $$ \mathcal{O}\left(10\%\right) $$ at NNLL ′ . We also confirm that the approximate K -factors in the interference and the pure signal processes are the same
Investigating transition state resonances in the time domain by means of Bohmian mechanics: The F + HD reaction

In this work, we investigate the existence of transition state resonances on atom¿diatom reactive collisions from a time-dependent perspective, stressing the role of quantum trajectories as a tool to analyze this phenomenon. As it is shown, when one focusses on the quantum probability current density, new dynamical information about the reactive process can be extracted. In order to detect the effects of the different rotational populations and their dynamics/coherences, we have considered a reduced twodimensional dynamics obtained from the evolution of a full three-dimensional quantum time-dependent wave packet associated with a particular angle. This reduction procedure provides us with information about the entanglement between the radial degrees of freedom (r,R) and the angular one (c), which can be considered as describing an environment. The combined approach here proposed has been applied to study the F + HD reaction, for which the FH + D product channel exhibits a resonance-mediated dynamics.Support from the Ministerio de Ciencia e Innovaci´on (Spain) under Projects FIS2010-18132 and FIS2010-22082 is acknowledged. A.S. Sanz and D. López-Duran respectively thank the Ministerio de Ciencia e Innovación for a “Ramón y Cajal” Research Fellowship and the Consejo Superior de Investigaciones Cientıﬁcas for a “JAE-Doc” contract.Peer Reviewe
Mechanical chest compression devices at in-hospital cardiac arrest: A systematic review and meta-analysis.

AIM\ud
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To summarise the evidence in relation to the routine use of mechanical chest compression devices during resuscitation from in-hospital cardiac arrest.\ud
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METHODS\ud
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We conducted a systematic review of studies which compared the effect of the use of a mechanical chest compression device with manual chest compressions in adults that sustained an in-hospital cardiac arrest. Critical outcomes were survival with good neurological outcome, survival at hospital discharge or 30-days, and short-term survival (ROSC/1-h survival). Important outcomes included physiological outcomes. We synthesised results in a random-effects meta-analysis or narrative synthesis, as appropriate. Evidence quality in relation to each outcome was assessed using the GRADE system.\ud
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DATA SOURCES\ud
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Studies were identified using electronic databases searches (Cochrane Central, MEDLINE, EMBASE, CINAHL), forward and backward citation searching, and review of reference lists of manufacturer documentation.\ud
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RESULTS\ud
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Eight papers, containing nine studies [689 participants], were included. Three studies were randomised controlled trials. Meta-analyses showed an association between use of mechanical chest compression device and improved hospital or 30-day survival (odds ratio 2.34, 95% CI 1.42-3.85) and short-term survival (odds ratio 2.14, 95% CI 1.11-4.13). There was also evidence of improvements in physiological outcomes. Overall evidence quality in relation to all outcomes was very low.\ud
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CONCLUSIONS\ud
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Mechanical chest compression devices may improve patient outcome, when used at in-hospital cardiac arrest. However, the quality of current evidence is very low. There is a need for randomised trials to evaluate the effect of mechanical chest compression devices on survival for in-hospital cardiac arrest
A tomografia computadorizada e sua reconstrução 3D aumentam a reprodutibilidade das classificações das fraturas da extremidade proximal do úmero?

OBJECTIVE:to determine whether 3D reconstruction images from computed tomography (CT) increase the inter and intraobserver agreement of the Neer and Arbeitsgemeinschaft für Osteosynthesefragen (AO) classification systems.METHODS:radiographic images and tomographic images with 3D reconstruction were obtained in three shoulder positions and were analyzed on two occasions by four independent observers.RESULTS:the radiographic evaluation demonstrated that using CT improved the inter and intraobserver agreement of the Neer classification. This was not seen with the AO classification, in which CT was only shown to increase the interobserver agreement.CONCLUSION:use of 3D CT allows better evaluation of fractures with regard to their component parts and their displacements, but nevertheless the intraobserver agreement presented is less than ideal.OBJETIVO:determinar se as imagens da reconstrução 3D da tomografia computadorizada (TC) aumentam a concordância inter e intraobservador dos sistemas de classificação de Neer e Arbeitsgemeinschaft für Osteosynthesefragen (AO).MÉTODOS:foram obtidas imagens radiográficas em três posições do ombro e imagens tomográficas com reconstrução 3D, que foram analisadas em dois tempos por quatro observadores independentes.RESULTADOS:a avaliação radiográfica demonstrou que o uso da TC melhora a concordância intra e interobservadores para a classificação de Neer. O mesmo não foi observado na classificação AO, na qual a TC demonstrou aumento somente da concordância interobservadores.CONCLUSÃO:o uso de TC 3D permite uma melhor avaliação da fratura quanto às partes que a compõem e aos seus desvios, mas mesmo assim apresenta uma concordância intraobservadores menor do que a ideal.Universidade Federal de São Paulo (UNIFESP)UNIFESPSciEL
Change of the emission spectra in organic light-emitting diodes by layer thickness modification

The electroluminescence (EL) and photoluminescence properties of organic light-emitting diodes (LED) were analyzed using layer thickness modification. Investigations show that the EL spectra exhibited significant variation with the increase of the viewing angle. It was found that multiple peak emission could be achieved for a certain range of thickness values. It was concluded that near white emission with CIE coordinates (0.32, 0.43) could be obtained for optimized device thickness.published_or_final_versio
Dietary (-)-epicatechin as a potent inhibitor of βγ-secretase amyloid precursor protein processing

Flavonoids, a group of dietary polyphenols have been shown to possess cognitive health benefits. Epidemiologic evidence suggests that they could play a role in risk reduction in dementia. Amyloid precursor protein processing and the subsequent generation of amyloid beta (Aβ) are central to the pathogenesis of Alzheimer's disease, as soluble, oligomeric Aβ is thought to be the toxic species driving disease progression. We undertook an in vitro screen to identify flavonoids with bioactivity at βγ-mediated amyloid precursor protein processing, which lead to identification of a number of flavonoids bioactive at 100 nM. Because of known bioavailability, we investigated the catechin family further and identified epigallocatechin and (-)-epicatechin as potent (nanomolar) inhibitors of amyloidogenic processing. Supporting this finding, we have shown reduced Aβ pathology and Aβ levels following short term, a 21-day oral delivery of (-)-epicatechin in 7-month-old TASTPM mice. Further, in vitro mechanistic studies suggest this is likely because of indirect BACE1 inhibition. Taken together, our results suggest that orally delivered (-)-epicatechin may be a potential prophylactic for Alzheimer's disease
Go-and-Back method: effective estimation of the hidden motion of proteins from single-molecule time series.

We present an effective method for estimating the motion of proteins from the motion of attached probe particles in single-molecule experiments. The framework naturally incorporates Langevin dynamics to compute the most probable trajectory of the protein. By using a perturbation expansion technique, we achieve computational costs more than 3 orders of magnitude smaller than the conventional gradient descent method without loss of simplicity in the computation algorithm. We present illustrative applications of the method using simple models of single-molecule experiments and confirm that the proposed method yields reasonable and stable estimates of the hidden motion in a highly efficient manner
A thermal pressurization model for the spontaneous dynamic rupture propagation on a three-dimensional faul. 1. Methodological approach

We investigate the role of frictional heating and thermal pressurization on earthquake
ruptures by modeling the spontaneous propagation of a three-dimensional (3-D) crack on a
planar fault governed by assigned constitutive laws and allowing the evolution of
effective normal stress. We use both slip-weakening and rate- and state-dependent
constitutive laws; in this latter case we employ the Linker and Dieterich evolution law for
the state variable, and we couple the temporal variations of friction coefficient with those
of effective normal stress. In the companion paper we investigate the effects of thermal
pressurization on the dynamic traction evolution. We solve the 1-D heat conduction
equation coupled with Darcy’s law for fluid flow in porous media. We obtain a relation
that couples pore fluid pressure to the temperature evolution on the fault plane. We
analytically solve the thermal pressurization problem by considering an appropriate heat
source for a fault of finite thickness. Our modeling results show that thermal pressurization
reduces the temperature increase caused by frictional heating. However, the effect of the
slipping zone thickness on temperature changes is stronger than that of thermal
pressurization, at least for a constant porosity model. Pore pressure and effective normal
stress evolution affect the dynamic propagation of the earthquake rupture producing a
shorter breakdown time and larger breakdown stress drop and rupture velocity. The
evolution of the state variable in the framework of rate- and state-dependent friction laws
is very different when thermal pressurization is active. In this case the evolution of the
friction coefficient differs substantially from that inferred from a slip-weakening law. This
implies that the traction evolution and the dynamic parameters are strongly affected by
thermal pressurization
Microbial communities from different types of natural wastewater treatment systems: vertical and horizontal flow constructed wetlands and biofilters

The prokaryotic microbial communities (Bacteria and Archaea) of three different systems operating in Denmark for the treatment of domestic wastewater (horizontal flow constructed wetlands (HFCW), vertical flow constructed wetlands (VFCW) and biofilters (BF)) was analysed using endpoint PCR followed by Denaturing Gradient Gel Electrophoresis (DGGE). Further sequencing of the most representative bacterial bands revealed that diverse and distinct bacterial communities were found in each system unit, being gamma-Proteobacteria and Bacteroidetes present mainly in all of them, while Firmicutes was observed in HFCW and BF. Members of the Actinobacteria group, although found in HFCW and VFCW, seemed to be more abundant in BF units. Finally, some representatives of alpha, beta and delta-Proteobacteria, Acidobacteria and Chloroflexi were also retrieved from some samples. On the other hand, a lower archaeal diversity was found in comparison with the bacterial population. Cluster analysis of the DGGE bacterial band patterns showed that community structure was related to the design of the treatment system and the organic matter load, while no clear relation was established between the microbial assemblage and the wastewater influent. (C) 2014 Elsevier Ltd. All rights reserved.Preprin
A new sample of X-ray selected narrow emission-line galaxies I. The nature of optically elusive AGN

Using the 3XMM catalogue of serendipitous X-ray sources, and the SDSS-DR9 spectroscopic catalogue, we have obtained a new sample of X-ray selected narrow emission line galaxies. The standard optical diagnostic diagram and selection by hard X-ray luminosity expose a mismatch between the optically-based and X-ray-based classifications. The nature of these misclassified elusive AGN can be understood in terms of their broader X-ray and optical properties and leads to a division of this sub-sample into two groups. A little more than half are likely to be narrow-line Seyfert 1s (NLS1s), so misclassified because of the contribution of the broad line region to their optical spectra. The remainder have some of the properties of Seyfert 2 (Sy2) AGN; their optical elusiveness can be explained by optical dilution from the host galaxy plus a star-formation contribution and by their underluminous optical emission due to low accretion rates. Because some of the Sy2 sources have very low accretion rates, are unabsorbed, plus the fact that they lack broad optical emission lines, they are good candidates to be true Sy2 AGN.Peer-reviewedPublisher Versio
Synthesis, structure and properties of the oxychalcogenide series A(4)O(4)TiSe(4) (A=Sm, Gd, Tb, Dy, Ho, Er and Y)

Seven oxyselenide materials have been synthesised with composition A4O4TiSe4 (A=Sm, Gd–Er, Y) via solid state reactions of A2O3, TiSe2 and Se at 900 °C. They are all isostructural with Gd4O4TiSe4. Structures have been refined from powder X-ray diffraction data and have monoclinic C2/m symmetry with unit cell parameters of a≈15.7 Å, b≈3.75 Å, c≈9.65 Å and β≈117.5°. They contain infinite ribbons of edge-sharing A4O and A3TiO tetrahedra 4 units wide, which are linked by chains of TiSe4O2 edge-sharing octahedra. Compositions A=Gd–Ho, Y are semiconductors with conductivities 1–3 Sm−1 at 300 K, with electronic band gaps of between 0.25 and 0.37 eV. Magnetic susceptibility is reported from 1.8 K to 300 K for compositions A=Gd–Ho. Rare earth moments appear to order antiferromagnetically at low temperatures with Gd and Tb showing evidence of ferromagnetism due to spin canting over a narrow temperature range close to TN