Showing papers by "York University published in 2014"
TL;DR: It is shown that further error rate reduction can be obtained by using convolutional neural networks (CNNs), and a limited-weight-sharing scheme is proposed that can better model speech features.
Abstract: Recently, the hybrid deep neural network (DNN)- hidden Markov model (HMM) has been shown to significantly improve speech recognition performance over the conventional Gaussian mixture model (GMM)-HMM. The performance improvement is partially attributed to the ability of the DNN to model complex correlations in speech features. In this paper, we show that further error rate reduction can be obtained by using convolutional neural networks (CNNs). We first present a concise description of the basic CNN and explain how it can be used for speech recognition. We further propose a limited-weight-sharing scheme that can better model speech features. The special structure such as local connectivity, weight sharing, and pooling in CNNs exhibits some degree of invariance to small shifts of speech features along the frequency axis, which is important to deal with speaker and environment variations. Experimental results show that CNNs reduce the error rate by 6%-10% compared with DNNs on the TIMIT phone recognition and the voice search large vocabulary speech recognition tasks.
1,948 citations
TL;DR: Spin precession measurements in the polar molecule thorium monoxide indicate a nearly spherical charge distribution of an electron, which constrains T-violating physics at the TeV energy scale.
Abstract: The Standard Model of particle physics is known to be incomplete. Extensions to the Standard Model, such as weak-scale supersymmetry, posit the existence of new particles and interactions that are asymmetric under time reversal (T) and nearly always predict a small yet potentially measurable electron electric dipole moment (EDM), d(e), in the range of 10(-27) to 10(-30) e·cm. The EDM is an asymmetric charge distribution along the electron spin (S(→)) that is also asymmetric under T. Using the polar molecule thorium monoxide, we measured d(e) = (-2.1 ± 3.7stat ± 2.5syst) × 10(-29) e·cm. This corresponds to an upper limit of |d(e)| < 8.7 × 10(-29) e·cm with 90% confidence, an order of magnitude improvement in sensitivity relative to the previous best limit. Our result constrains T-violating physics at the TeV energy scale.
1,040 citations
TL;DR: It is found that caliper matching had amongst the best performance when assessed using mean squared error, and the order in which treated subjects were selected for matching had at most a modest effect on estimation.
Abstract: Propensity-score matching is increasingly being used to reduce the confounding that can occur in observational studies examining the effects of treatments or interventions on outcomes. We used Monte Carlo simulations to examine the following algorithms for forming matched pairs of treated and untreated subjects: optimal matching, greedy nearest neighbor matching without replacement, and greedy nearest neighbor matching without replacement within specified caliper widths. For each of the latter two algorithms, we examined four different sub-algorithms defined by the order in which treated subjects were selected for matching to an untreated subject: lowest to highest propensity score, highest to lowest propensity score, best match first, and random order. We also examined matching with replacement. We found that (i) nearest neighbor matching induced the same balance in baseline covariates as did optimal matching; (ii) when at least some of the covariates were continuous, caliper matching tended to induce balance on baseline covariates that was at least as good as the other algorithms; (iii) caliper matching tended to result in estimates of treatment effect with less bias compared with optimal and nearest neighbor matching; (iv) optimal and nearest neighbor matching resulted in estimates of treatment effect with negligibly less variability than did caliper matching; (v) caliper matching had amongst the best performance when assessed using mean squared error; (vi) the order in which treated subjects were selected for matching had at most a modest effect on estimation; and (vii) matching with replacement did not have superior performance compared with caliper matching without replacement. © 2013 The Authors. Statistics in Medicine published by John Wiley & Sons, Ltd.
707 citations
TL;DR: In this article, the authors address several issues related to the use of data envelopment analysis (DEA), including model orientation, input and output selection/definition, use of mixed and raw data, and number of inputs and outputs to use versus the number of DMUs.
Abstract: In this paper, we address several issues related to the use of data envelopment analysis (DEA). These issues include model orientation, input and output selection/definition, the use of mixed and raw data, and the number of inputs and outputs to use versus the number of decision making units (DMUs). We believe that within the DEA community, researchers, practitioners, and reviewers may have concerns and, in many cases, incorrect views about these issues. Some of the concerns stem from what is perceived as being the purpose of the DEA exercise. While the DEA frontier can rightly be viewed as a production frontier, it must be remembered that ultimately DEA is a method for performance evaluation and benchmarking against best-practice. DEA can be viewed as a tool for multiple-criteria evaluation problems where DMUs are alternatives and each DMU is represented by its performance in multiple criteria which are coined/classified as DEA inputs and outputs. The purpose of this paper is to offer some clarification and direction on these matters.
654 citations
TL;DR: In this article, a critique of Porter and Kramer's concept of creating shared value is presented, namely, it is unoriginal, it ignores the tensions inherent to responsible business activity; it is naive about business compliance; and it is based on a shallow conception of the corporation's role in society.
Abstract: This article critiques Porter and Kramer's concept of creating shared value. The strengths of the idea are highlighted in terms of its popularity among practitioner and academic audiences, its connecting of strategy and social goals, and its systematizing of some previously underdeveloped, disconnected areas of research and practice. However, the concept suffers from some serious shortcomings, namely: it is unoriginal; it ignores the tensions inherent to responsible business activity; it is naive about business compliance; and it is based on a shallow conception of the corporation's role in society. [Michael Porter and Mark Kramer were invited to respond to this article. Their commentary follows along with a reply by Crane and his co-authors.]
650 citations
TL;DR: The Cognitive Reflection Test (CRT) as mentioned in this paper is designed to measure the tendency to override a prepotent response alternative that is incorrect and to engage in further reflection that leads to the correct response.
Abstract: The Cognitive Reflection Test (CRT; Frederick, 2005) is designed to measure the tendency to override a prepotent response alternative that is incorrect and to engage in further reflection that leads to the correct response. It is a prime measure of the miserly information processing posited by most dual process theories. The original three-item test may be becoming known to potential participants, however. We examined a four-item version that could serve as a substitute for the original. Our data show that it displays a .58 correlation with the original version and that it has very similar relationships with cognitive ability, various thinking dispositions, and with several other rational thinking tasks. Combining the two versions into a seven-item test resulted in a measure of miserly processing with substantial reliability (.72). The seven-item version was a strong independent predictor of performance on rational thinking tasks after the variance accounted for by cognitive ability and thinking dispositi...
583 citations
TL;DR: The authors used panel regression techniques that allow for heterogeneous slope coefficients and cross-section dependence to model the impact that urbanization has on CO2 emissions for a panel of emerging economies.
574 citations
TL;DR: In this article, the authors argue that while the increase in acceptance and activity is welcome and has lead to a greater understanding of sustainability, our present knowledge is not sufficient to create truly sustainable supply chains.
Abstract: In the last two decades, the topic of sustainability has moved from the fringes of supply chain management research to the mainstream and is now an area of significant research activity. In this paper, we argue that while this increase in acceptance and activity is welcome and has lead to a greater understanding of sustainability, our present knowledge is not sufficient to create truly sustainable supply chains. We build on this insight to identify five main issues that future research needs to address. We argue that when it comes to the theory of sustainable supply chain management, previous research has focused on the synergistic and familiar while overlooking trade-offs and radical innovation. These theoretical issues are compounded by measures that do not truly capture a supply chain's impacts and methods that are better at looking backwards than forwards. The paper concludes by proposing a series of recommendations that address these issues to help in the development of truly sustainable supply chains.
550 citations
TL;DR: The T2K experiment has observed electron neutrino appearance in a muon neutrinos beam produced 295 km from the Super-Kamiokande detector with a peak energy of 0.6 GeV, corresponding to a significance of 7.3σ.
Abstract: The T2K experiment has observed electron neutrino appearance in a muon neutrino beam produced 295 km from the Super-Kamiokande detector with a peak energy of 0.6 GeV. A total of 28 electron neutrino events were detected with an energy distribution consistent with an appearance signal, corresponding to a significance of 7.3 sigma when compared to 4.92 +/- 0.55 expected background events. In the Pontecorvo-Maki-Nakagawa-Sakata mixing model, the electron neutrino appearance signal depends on several parameters including three mixing angles theta(12), theta(23), theta(13), a mass difference vertical bar Delta m(32)(2)vertical bar and a CP violating phase delta(CP). In this neutrino oscillation scenario, assuming vertical bar Delta m(32)(2)vertical bar = 2.4 x 10(-3) eV(2), sin theta(2)(23) = 0.5, and vertical bar Delta m(32)(2)vertical bar > 0 (vertical bar Delta m(32)(2)vertical bar <0), a best- fit value of sin2 theta(2)(13) = 0.140(- 0.032)(+0.038) (0.170(-0.037)(+0.045)) is obtained at delta(CP) = 0. When combining the result with the current best knowledge of oscillation parameters including the world average value of theta(13) from reactor experiments, some values of delta(CP) are disfavored at the 90% C. L.
515 citations
TL;DR: In this paper, the degradation routes of biomass model compounds such as cellulose and lignin at near and supercritical conditions are highlighted, and parametric impacts along with some reactor configurations for maximum hydrogen production and technical challenges encountered during hydrothermal gasification processes are also discussed.
402 citations
TL;DR: In this article, the authors presented the electron and photon energy calibration achieved with the ATLAS detector using about 25 fb(-1) of LHC proton-proton collision data taken at center-of-mass energies of root s = 7 and 8 TeV.
Abstract: This paper presents the electron and photon energy calibration achieved with the ATLAS detector using about 25 fb(-1) of LHC proton-proton collision data taken at centre-of-mass energies of root s = 7 and 8 TeV. The reconstruction of electron and photon energies is optimised using multivariate algorithms. The response of the calorimeter layers is equalised in data and simulation, and the longitudinal profile of the electromagnetic showers is exploited to estimate the passive material in front of the calorimeter and reoptimise the detector simulation. After all corrections, the Z resonance is used to set the absolute energy scale. For electrons from Z decays, the achieved calibration is typically accurate to 0.05% in most of the detector acceptance, rising to 0.2% in regions with large amounts of passive material. The remaining inaccuracy is less than 0.2-1% for electrons with a transverse energy of 10 GeV, and is on average 0.3% for photons. The detector resolution is determined with a relative inaccuracy of less than 10% for electrons and photons up to 60 GeV transverse energy, rising to 40% for transverse energies above 500 GeV.
TL;DR: In this article, the authors introduce four processes of consumer responsibilization that, together, comprise the P.A.T. routine (personalization, authorization, capabilization, and transformation).
Abstract: Responsible consumption conventionally stems from an increased awareness of the impact of consumption decisions on the environment, on consumer health, and on society in general. We theorize the influence of moralistic governance regimes on consumer subjectivity to make the opposite case: responsible consumption requires the active creation and management of consumers as moral subjects. Building on the sociology of governmentality, we introduce four processes of consumer responsibilization that, together, comprise the P.A.C.T. routine (personalization, authorization, capabilization, and transformation). After that, we draw on a longitudinal analysis of problem-solving initiatives at the World Economic Forum in Davos, Switzerland, to explore the role of P.A.C.T. in the creation of four, now commonplace, responsible consumer subjects: the bottom-of-the-pyramid consumer, the green consumer, the health-conscious consumer, and the financially literate consumer. Our analysis informs extant macro-level theorizations of market and consumption systems. We also contribute to prior accounts of responsibilization, marketplace mythologies, consumer subjectivity, and transformative consumer research.
TL;DR: In this paper, a measurement of the Z/gamma* boson transverse momentum spectrum using ATLAS proton-proton collision data at a centre-of-mass energy of root s = 7TeV at the LHC is described.
Abstract: This paper describes a measurement of the Z/gamma* boson transverse momentum spectrum using ATLAS proton-proton collision data at a centre-of-mass energy of root s = 7TeV at the LHC. The measurement is performed in the Z/gamma* -> e(+)e(-) and Z/gamma* -> mu(+)mu(-) channels, using data corresponding to an integrated luminosity of 4.7 fb(-1). Normalized differential cross sections as a function of the Z/gamma* boson transverse momentum are measured for transverse momenta up to 800 GeV. The measurement is performed inclusively for Z/gamma* rapidities up to 2.4, as well as in three rapidity bins. The channel results are combined, compared to perturbative and resummed QCD calculations and used to constrain the parton shower parameters of Monte Carlo generators.
TL;DR: This article proposed a taxonomy of variation and a common motivational process underlying people's reactions to threats, and found that there are common motivational processes that underlie the similar reactions to all of these diverse kinds of threats.
Abstract: The social psychological literature on threat and defense is fragmented. Groups of researchers have focused on distinct threats, such as mortality, uncertainty, uncontrollability, or meaninglessness, and have developed separate theoretical frameworks for explaining the observed reactions. In the current chapter, we attempt to integrate old and new research, proposing both a taxonomy of variation and a common motivational process underlying people’s reactions to threats. Following various kinds of threats, people often turn to abstract conceptions of reality—they invest more extremely in belief systems and worldviews, social identities, goals, and ideals. We suggest that there are common motivational processes that underlie the similar reactions to all of these diverse kinds of threats. We propose that (1) all of the threats present people with discrepancies that immediately activate basic neural processes related to anxiety. (2) Some categories of defenses are more proximal and symptom-focused, and result directly from anxious arousal and heightened attentional vigilance associated with anxious states. (3) Other kinds of defenses operate more distally and mute anxiety by activating approach-oriented states. (4) Depending on the salient dispositional and situational affordances, these distal, approach-oriented reactions vary in the extent to which they (a) resolve the original discrepancy or are merely palliative; (b) are concrete or abstract; (c) are personal or social. We present results from social neuroscience and standard social psychological experiments that converge on a general process model of threat and defense.
TL;DR: Each of SES and bilingualism contribute significantly and independently to children's development irrespective of the child's level on the other factor.
TL;DR: In this article, a search for squarks and gluinos in final states containing high-p T jets, missing transverse momentum and no electrons or muons is presented.
Abstract: A search for squarks and gluinos in final states containing high-p T jets, missing transverse momentum and no electrons or muons is presented. The data were recorded in 2012 by the ATLAS experiment in s√=8 TeV proton-proton collisions at the Large Hadron Collider, with a total integrated luminosity of 20.3 fb−1. Results are interpreted in a variety of simplified and specific supersymmetry-breaking models assuming that R-parity is conserved and that the lightest neutralino is the lightest supersymmetric particle. An exclusion limit at the 95% confidence level on the mass of the gluino is set at 1330 GeV for a simplified model incorporating only a gluino and the lightest neutralino. For a simplified model involving the strong production of first- and second-generation squarks, squark masses below 850 GeV (440 GeV) are excluded for a massless lightest neutralino, assuming mass degenerate (single light-flavour) squarks. In mSUGRA/CMSSM models with tan β = 30, A 0 = −2m 0 and μ > 0, squarks and gluinos of equal mass are excluded for masses below 1700 GeV. Additional limits are set for non-universal Higgs mass models with gaugino mediation and for simplified models involving the pair production of gluinos, each decaying to a top squark and a top quark, with the top squark decaying to a charm quark and a neutralino. These limits extend the region of supersymmetric parameter space excluded by previous searches with the ATLAS detector.
TL;DR: The extant evidence provides the basis for a model proposing that volunteering increases social, physical, and cognitive activity which, through biological and psychological mechanisms, leads to improved functioning and that these volunteering-related functional improvements should be associated with reduced dementia risk.
Abstract: There is an urgent need to identify lifestyle activities that reduce functional decline and dementia associated with population aging. The goals of this article are to review critically the evidence on the benefits associated with formal volunteering among older adults, propose a theoretical model of how volunteering may reduce functional limitations and dementia risk, and offer recommendations for future research. Database searches identified 113 papers on volunteering benefits in older adults, of which 73 were included. Data from descriptive, cross-sectional, and prospective cohort studies, along with 1 randomized controlled trial, most consistently reveal that volunteering is associated with reduced symptoms of depression, better self-reported health, fewer functional limitations, and lower mortality. The extant evidence provides the basis for a model proposing that volunteering increases social, physical, and cognitive activity (to varying degrees depending on characteristics of the volunteer placement) which, through biological and psychological mechanisms, leads to improved functioning; we further propose that these volunteering-related functional improvements should be associated with reduced dementia risk. Recommendations for future research are that studies (a) include more objective measures of psychosocial, physical, and cognitive functioning; (b) integrate qualitative and quantitative methods in prospective study designs; (c) explore further individual differences in the benefits associated with volunteering; (d) include occupational analyses of volunteers' specific jobs in order to identify their social, physical, and cognitive complexity; (e) investigate the independent versus interactive health benefits associated with volunteering relative to engagement in other forms of activity; and (f) examine the relationship between volunteering and dementia risk.
TL;DR: The performance of the ATLAS muon reconstruction during the LHC run withpp collisions at s=7–8 TeV in 2011–2012 is presented, focusing mainly on data collected in 2012.
Abstract: This paper presents the performance of the ATLAS muon reconstruction during the LHC run with pp collisions at root s = 7-8 TeV in 2011-2012, focusing mainly on data collected in 2012. Measurements ...
TL;DR: In this article, the electron reconstruction and identification efficiencies of the ATLAS detector at the LHC have been evaluated using proton-proton collision data collected in 2011 at TeV and corresponding to an integrated luminosity of 4.7 fb.
Abstract: Many of the interesting physics processes to be measured at the LHC have a signature involving one or more isolated electrons. The electron reconstruction and identification efficiencies of the ATLAS detector at the LHC have been evaluated using proton-proton collision data collected in 2011 at TeV and corresponding to an integrated luminosity of 4.7 fb. Tag-and-probe methods using events with leptonic decays of and bosons and mesons are employed to benchmark these performance parameters. The combination of all measurements results in identification efficiencies determined with an accuracy at the few per mil level for electron transverse energy greater than 30 GeV.
TL;DR: The ubiquitous evidence of specific cell and circuit properties underlying synchronized activity across theta, alpha, beta and gamma frequency bands is surveyed and shows that their activation likely implements gain control, context-dependent gating and state-specific integration of synaptic inputs, giving rise to the dynamic circuit motifs hypothesis of synchronized activation states.
Abstract: Brain circuitry processes information by rapidly and selectively engaging functional neuronal networks. The dynamic formation of networks is often evident in rhythmically synchronized neuronal activity and tightly correlates with perceptual, cognitive and motor performances. But how synchronized neuronal activity contributes to network formation and how it relates to the computation of behaviorally relevant information has remained difficult to discern. Here we structure recent empirical advances that link synchronized activity to the activation of so-called dynamic circuit motifs. These motifs explicitly relate (1) synaptic and cellular properties of circuits to (2) identified timescales of rhythmic activation and to (3) canonical circuit computations implemented by rhythmically synchronized circuits. We survey the ubiquitous evidence of specific cell and circuit properties underlying synchronized activity across theta, alpha, beta and gamma frequency bands and show that their activation likely implements gain control, context-dependent gating and state-specific integration of synaptic inputs. This evidence gives rise to the dynamic circuit motifs hypothesis of synchronized activation states, with its core assertion that activation states are linked to uniquely identifiable local circuit structures that are recruited during the formation of functional networks to perform specific computational operations.
TL;DR: It is suggested that warfarin use is not beneficial in reducing stroke risk, but it is associated with a higher bleeding risk in patients with atrial fibrillation undergoing dialysis.
Abstract: Background—Current observational studies on warfarin use and the risk for stroke and bleeding in patients with atrial fibrillation (AF) undergoing dialysis found conflicting results. Methods and Results—We conducted a population-based retrospective cohort study of patients aged ≥65 years admitted to a hospital with a primary or secondary diagnosis of AF, in Quebec and Ontario, Canada from 1998 to 2007. The AF cohort was grouped into dialysis (hemodialysis and peritoneal dialysis) and nondialysis patients and into warfarin and no-warfarin users according to the first prescription filled for warfarin within 30 days after AF hospital discharge. We determined the association between warfarin use and the risk for stroke and bleeding in dialysis and nondialysis patients. The cohort comprised 1626 dialysis patients and 204 210 nondialysis patients. Among dialysis patients, 46% (756/1626) patients were prescribed warfarin. Among dialysis patients, warfarin users had more congestive heart failure and diabetes mell...
University of Chile1, Centre national de la recherche scientifique2, Lawrence Berkeley National Laboratory3, Max Planck Society4, University of Wyoming5, University of La Laguna6, York University7, Princeton University8, University of Washington9, New Mexico State University10, Pennsylvania State University11, University of Utah12, University of Arizona13, Erciyes University14, University of Zurich15, University of Florida16, University of Cambridge17, Carnegie Mellon University18, University of Barcelona19, Ohio State University20, University of Portsmouth21, Universidade Federal do Rio Grande do Sul22, New York University23, University of Pittsburgh24, University of Chicago25
TL;DR: The Data Release 10 Quasar (DR10Q) catalog from the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky Survey III as discussed by the authors includes all BOSS objects that were targeted as quasar candidates during the first 2.5 years of the survey and that are confirmed as quasars via visual inspection of the spectra.
Abstract: We present the Data Release 10 Quasar (DR10Q) catalog from the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky Survey III. The catalog includes all BOSS objects that were targeted as quasar candidates during the first 2.5 years of the survey and that are confirmed as quasars via visual inspection of the spectra, have luminosities M i [z = 2] 0 = 70 km s-1 Mpc-1 , ΩM = 0.3, and ΩΛ = 0.7), and either display at least one emission line with a full width at half maximum (FWHM) larger than 500 km s-1 or, if not, have interesting/complex absorption features. The catalog also includes known quasars (mostly from SDSS-I and II) that were reobserved by BOSS. The catalog contains 166 583 quasars (74 454 are new discoveries since SDSS-DR9) detected over 6373 deg2 with robust identification and redshift measured by a combination of principal component eigenspectra. The number of quasars with z > 2.15 (117 668) is ~5 times greater than the number of z > 2.15 quasars known prior to BOSS. Redshifts and FWHMs are provided for the strongest emission lines (C iv, C iii, Mg ii). The catalog identifies 16 461 broad absorption line quasars and gives their characteristics. For each object, the catalog presents five-band (u , g , r , i , z ) CCD-based photometry with typical accuracy of 0.03 mag and information on the optical morphology and selection method. The catalog also contains X-ray, ultraviolet, near-infrared, and radio emission properties of the quasars, when available, from other large-area surveys. The calibrated digital spectra cover the wavelength region 3600−10 500 A at a spectral resolution in the range 1300 < 2500; the spectra can be retrieved from the SDSS Catalog Archive Server. We also provide a supplemental list of an additional 2376 quasars that have been identified among the galaxy targets of the SDSS-III/BOSS.
TL;DR: In this paper, the authors propose an analytical framework for the study of transnational business governance interactions, disaggregating the regulatory process to identify potential points of interaction, and suggest analytical questions that probe the key features of interactions at each point.
Abstract: This special issue demonstrates the importance of interactions in transnational business governance. The number of schemes applying non-state authority to govern business conduct across borders has vastly expanded in numerous issue areas. As these initiatives proliferate, they increasingly interact with one another and with state-based regimes. The key challenge is to understand the implications of these interactions for regulatory capacity and performance, and ultimately for social and environmental impact. In this introduction, we propose an analytical framework for the study of transnational business governance interactions. The framework disaggregates the regulatory process to identify potential points of interaction, and suggests analytical questions that probe the key features of interactions at each point.
TL;DR: The literature provides early evidence that prehabilitation may reduce length of stay and possibly provide postoperative physical benefits, but it was not consistently effective in improving health-related quality of life or aerobic fitness in the studies that examined these outcomes.
TL;DR: Green militarization as mentioned in this paper is the use of military and paramilitary personnel, training, technologies, and partnerships in the pursuit of conservation efforts, which is a recent trend around the world.
Abstract: Building from scholarship charting the complex, often ambivalent, relationship between military activity and the environment, and the more recent critical geographical work on militarization, this article sheds light on a particular meshing of militarization and conservation: green militarization An intensifying yet surprisingly understudied trend around the world, this is the use of military and paramilitary personnel, training, technologies, and partnerships in the pursuit of conservation efforts I introduce this concept, first, as a call for more sustained scholarly investigation into the militarization of conservation practice More modestly, the article offers its own contribution to this end by turning to South Africa's Kruger National Park, the world's most concentrated site of commercial rhino poaching Focusing on the state's multilayered and increasingly lethal militarized response to what is itself a highly militarized practice, I illustrate how the spatial qualities of protected areas matter
TL;DR: A 12-week, low-intensity treatment with seven symptomatic infants ages 7-15 months was proposed in this article, and the treated group had much lower rates of both ASD and DQs under 70 than a similarly symptomatic group who did not enroll in the treatment study.
Abstract: The goal of early autism screening is earlier treatment. We pilot-tested a 12-week, low-intensity treatment with seven symptomatic infants ages 7–15 months. Parents mastered the intervention and maintained skills after treatment ended. Four comparison groups were matched from a study of infant siblings. The treated group of infants was significantly more symptomatic than most of the comparison groups at 9 months of age but was significantly less symptomatic than the two most affected groups between 18 and 36 months. At 36 months, the treated group had much lower rates of both ASD and DQs under 70 than a similarly symptomatic group who did not enroll in the treatment study. It appears feasible to identify and enroll symptomatic infants in parent-implemented intervention before 12 months, and the pilot study outcomes are promising, but testing the treatment’s efficacy awaits a randomized trial.
TL;DR: In this paper, an improved measurement of the mass of the Higgs boson is derived from a combined fit to the reconstructed invariant mass spectra of the decay channels H -> gamma gamma and H -> ZZ* -> 4l.
Abstract: An improved measurement of the mass of the Higgs boson is derived from a combined fit to the reconstructed invariant mass spectra of the decay channels H -> gamma gamma and H -> ZZ* -> 4l. The analysis uses the pp collision data sample recorded by the ATLAS experiment at the CERN Large Hadron Collider at center-of-mass energies of 7 TeV and 8 TeV, corresponding to an integrated luminosity of 25 fb(-1). The measured value of the Higgs boson mass is m(H) = 125.36 +/- 0.37(stat) +/- 0.18 (syst) GeV. This result is based on improved energy-scale calibrations for photons, electrons, and muons as well as other analysis improvements, and supersedes the previous result from ATLAS. Upper limits on the total width of the Higgs boson are derived from fits to the invariant mass spectra of the H -> gamma gamma and H -> ZZ* -> 4l decay channels.
TL;DR: In this article, the authors used VARMA-AGARCH and DCC-AGarch models to model volatilities and conditional correlations between emerging market stock prices, copper prices, oil prices and wheat prices.
TL;DR: In this paper, a measurement of the production processes of the recently discovered Higgs boson is performed in the two-photon final state using 4.5 fb(-1) of proton-proton collisions data at root s = 7 TeV and 20.4 GeV.
Abstract: A measurement of the production processes of the recently discovered Higgs boson is performed in the two-photon final state using 4.5 fb(-1) of proton-proton collisions data at root s = 7 TeV and 20.3 fb(-1) at root s = 8 TeV collected by the ATLAS detector at the Large Hadron Collider. The number of observed Higgs boson decays to diphotons divided by the corresponding Standard Model prediction, called the signal strength, is found to be mu = 1.17 +/- 0.27 at the value of the Higgs boson mass measured by ATLAS, m(H) = 125.4 GeV. The analysis is optimized to measure the signal strengths for individual Higgs boson production processes at this value of m(H). They are found to be mu(ggF) = 1.32 +/- 0.38, mu(VBF) = 0.8 +/- 0.7, mu(WH) = 1.0 +/- 1.6, mu(ZH) = 0.1(-0.1)(+3.7), and mu t (t) over barH = 1.6(-1.8)(+2.7), for Higgs boson production through gluon fusion, vector-boson fusion, and in association with a W or Z boson or a top-quark pair, respectively. Compared with the previously published ATLAS analysis, the results reported here also benefit from a new energy calibration procedure for photons and the subsequent reduction of the systematic uncertainty on the diphoton mass resolution. No significant deviations from the predictions of the Standard Model are found.
TL;DR: In this paper, the physicochemical changes with pyrolysis temperature (400-550°C) were analyzed for their physicochemical properties with respect to different types of Canadian waste biomass, including poultry litter, wheat straw, flax straw and sawdust.