pinecone/core-2020-05-10-deduplication huggingface dataset:
Policy for physical education and school sport in England, 2003-2010 : vested interests and dominant discourses.

Background: The salience of physical education and school sport (PESS) in England changed dramatically in the 2000s in terms of central government investment and political interests. The government put in place the physical education, school sport and club links strategy and the physical education and sport strategy for young people for a wide-ranging array of social objectives. Although policy research relating to PESS has centred on the sport policy-making process and the role of government or agents, including teachers, has been growing from the 2000s, this paper argues for the need to explore the social construction and constitution of school knowledge underpinned and influenced by particular dominant vested interests and their associated discourses to understand certain pedagogical implications for young people.\ud
Method: Applying the educational policy sociology approach adapted from Basil Bernstein's work on the social construction of pedagogic discourse, the focus of this paper was to identify the main discourses which constructed and constituted policy for PESS from 2003 to 2010 in England. Qualitative content analysis on six policy documents and 467 media articles was conducted.\ud
Findings: This paper identifies five discourses constructing and constituting policy for PESS during the period under study: sport, health, citizenship, lifelong participation and Olympic legacy. These are sources of policy for PESS that were constructed in Bernstein's re-contextualising field. This paper also seeks to show the complexity of policies and strategies for PESS in that they are anchored in a web of significations in terms of complex connections between elements of discourses. It can be argued that as a structure-in-dominance, policies for PESS reinforced competitive sport-based conceptions of physical education and, arguably, created a limited universe of possibilities, of what was thinkable, for and as PESS.\ud
Conclusions: This paper argues that the inclusions and exclusions of discourses from policy for PESS are all politically charged, and will have an impact on the quality of young people's education and their life chances in the future. Furthermore, this paper proposes that we need to explore in further depth the processes of how to maximise the possibilities of realising quality PESS in order for young people to learn citizenship, foster health improvement and facilitate lifelong participation in physical activities
A parton shower for High Energy Jets.\ud

We present a method to match the multi-parton states generated by the High Energy Jets Monte Carlo with parton showers generated by the Ariadne program using the colour dipole model. The High Energy Jets program already includes a full resummation of soft divergences. Hence, in the matching it is important that the corresponding divergences in the parton shower are subtracted, keeping only the collinear parts. We present a novel, shower-independent method for achieving this, enabling us to generate fully exclusive and hadronized events with multiple hard jets, in hadronic collisions. We discuss in detail the arising description of the soft, collinear and hard regions by examples in pure QCD jet-production
Developing priority variables ("ecosystem Essential Ocean Variables" — eEOVs) for observing dynamics and change in Southern Ocean ecosystems

Reliable statements about variability and change in marine ecosystems and their underlying causes are needed to report on their status and to guide management. Here we use the Framework on Ocean Observing (FOO) to begin developing ecosystem Essential Ocean Variables (eEOVs) for the Southern Ocean Observing System (SOOS). An eEOV is a defined biological or ecological quantity, which is derived from field observations, and which contributes significantly to assessments of Southern Ocean ecosystems. Here, assessments are concerned with estimating status and trends in ecosystem properties, attribution of trends to causes, and predicting future trajectories. eEOVs should be feasible to collect at appropriate spatial and temporal scales and are useful to the extent that they contribute to direct estimation of trends and/or attribution, and/or development of ecological (statistical or simulation) models to support assessments. In this paper we outline the rationale, including establishing a set of criteria, for selecting eEOVs for the SOOS and develop a list of candidate eEOVs for further evaluation. Other than habitat variables, nine types of eEOVs for Southern Ocean taxa are identified within three classes: state (magnitude, genetic/species, size spectrum), predator–prey (diet, foraging range), and autecology (phenology, reproductive rate, individual growth rate, detritus). Most candidates for the suite of Southern Ocean taxa relate to state or diet. Candidate autecological eEOVs have not been developed other than for marine mammals and birds. We consider some of the spatial and temporal issues that will influence the adoption and use of eEOVs in an observing system in the Southern Ocean, noting that existing operations and platforms potentially provide coverage of the four main sectors of the region — the East and West Pacific, Atlantic and Indian. Lastly, we discuss the importance of simulation modelling in helping with the design of the observing system in the long term.\ud
\ud
Regional boundary: south of 30°S.\u
Creating Value in Retail Buyer-Vendor Relationships: A Service-Centered Model

We present a “service-centered” model of retail buyer–vendor relationships, in which retail buyers’ perceptions of a vendor’s economic and social resources affect their assessments of relationship value and relationship outcomes. Economic resources offered at the organizational level of the vendor include brand equity and customer support activities (e.g., merchandising support and margin maintenance). Social resources offered at the individual level of the salesperson include special treatment and customer advocacy. Relationship outcomes include the buyer’ intention to grow the business, and in the event of business termination, maintain the interpersonal relationship with the sales representative. Survey data from 532 retail buyers were collected and analyzed using structural equation modeling. The results show that relationship value mediates the effects of economic and social resources on relationship outcomes. However, the process by which this occurs varies
Kinematics of fluid particles on the sea surface. Hamiltonian theory

We derive the John-Sclavounos equations describing the motion of a fluid
particle on the sea surface from first principles using Lagrangian and
Hamiltonian formalisms applied to the motion of a frictionless particle
constrained on an unsteady surface. The main result is that vorticity generated
on a stress-free surface vanishes at a wave crest when the horizontal particle
velocity equals the crest propagation speed, which is the kinematic criterion
for wave breaking. If this holds for the largest crest, then the symplectic
two-form associated with the Hamiltonian dynamics reduces instantaneously to
that associated with the motion of a particle in free flight, as if the surface
did not exist. Further, exploiting the conservation of the Hamiltonian function
for steady surfaces and traveling waves we show that particle velocities remain
bounded at all times, ruling out the possibility of the finite-time blowup of
solutions
Shift-Symmetries at Higher Order

The fate of shift-symmetries in effective string models is considered beyond
tree-level. Such symmetries have been proposed in the past as a way to maintain
a hierarchically small Higgs mass and also play a role in schemes of
cosmological relaxation. It is argued that on general grounds one expects
shift-symmetries to be restored in the limit of certain asymmetric
compactifications, to all orders in perturbation theory. This behaviour is
verified by explicit computation of the Kaehler potential to one-loop order.Comment: 19 page
Heavy Tetraquarks in the Diquark-Antidiquark Picture

The homogeneous Lippmann-Schwinger integral equation is solved in momentum
space to calculate the masses of heavy tetraquarks with hidden charm and
bottom. The tetraquark bound states are studied in the diquark-antidiquark
picture as a two-body problem. A regularized form of the diquark-antidiquark
potential is used to overcome the singularity of the confining potential at
large distances or small momenta. Our numerical results indicate that the
relativistic effect leads to a small reduction in the mass of heavy
tetraquarks, which is less than $2\,\%$ for charm and less than $0.2\,\%$ for
bottom tetraquarks. The calculated masses of heavy tetraquarks for $1s$, $1p$,
$2s$, $1d$ and $2p$ states are in good agreement with other theoretical
calculations and experimental data. Our numerical analysis predict the masses
of heavy tetraquarks for $3s$, $2d$ and $3p$ states for the first time, and we
are not aware of any other theoretical results or experimental data for these
states
The Initial Conditions of Stellar Protocluster Formation: III. The
  Herschel counterparts of the Spitzer Dark Cloud catalogue

Galactic plane surveys of pristine molecular clouds are key for establishing
a Galactic-scale view of the earliest stages of star formation. For this reason
Peretto & Fuller (2009) built an unbiased sample of IRDCs in the 10 deg < |l| <
65 deg, |b|<1 deg region of the Galactic plane using Spitzer 8micron
extinction. However, in absorption studies, intrinsic fluctuations in the
mid-infrared background can be mis-interpreted as foreground clouds. The main
goal of the study presented here is to disentangle real clouds in the Spitzer
Dark Cloud (SDC) catalogue from artefacts due to fluctuations in the
mid-infrared background. We constructed H_2 column density maps at ~18"
resolution using the 160micron and 250micron data from the Herschel Galactic
plane survey Hi-GAL. We also developed an automated detection scheme that
confirms the existence of a SDC through its association with a peak on these
Herschel column density maps. Detection simulations, along with visual
inspection of a small sub-sample of SDCs, have been performed to get better
insight into the limitations of our automated identification scheme. Our
analysis shows that 76(+/-19)% of the catalogued SDCs are real. This fraction
drops to 55(+/-12)% for clouds with angular diameters larger than ~1 arcminute.
The contamination of the PF09 catalogue by large spurious sources reflect the
large uncertainties associated to the construction of the 8micron background
emission, a key stage towards the identification of SDCs. A comparison of the
Herschel confirmed SDC sample with the BGPS and ATLASGAL samples shows that
SDCs probe a unique range of cloud properties, reaching down to more compact
and lower column density clouds than any of these two (sub-)millimetre Galactic
plane surveys.Comment: 11 pages, 14 figures, accepted for publication in A&
Absence of hepatitis delta infection in a large rural HIV cohort
                in Tanzania

OBJECTIVES: The epidemiological and clinical determinants of
                hepatitis delta virus (HDV) infection in Sub-Saharan Africa are
                ill-defined. The prevalence of HDV infection was determined in
                HIV/hepatitis B virus (HBV) co-infected individuals in rural
                Tanzania. METHODS: All hepatitis B virus (HBV)-infected adults
                under active follow-up in the Kilombero and Ulanga
                Antiretroviral Cohort (KIULARCO) were screened for anti-HDV
                antibodies. For positive samples, a second serological test and
                nucleic acid amplification were performed. Demographic and
                clinical characteristics at initiation of antiretroviral therapy
                (ART) were compared between anti-HDV-negative and positive
                patients. RESULTS: Among 222 HIV/HBV co-infected patients on
                ART, 219 (98.6%) had a stored serum sample available and were
                included in the study. Median age was 37 years, 55% were female,
                46% had World Health Organization stage III/IV HIV disease, and
                the median CD4 count was 179 cells/mul. The prevalence of
                anti-HDV positivity was 5.0% (95% confidence interval 2.8-8.9%).
                There was no significant predictor of anti-HDV positivity. HDV
                could not be amplified in any of the anti-HDV-positive patients
                and the second serological test was negative in all of them.
                CONCLUSIONS: No confirmed case of HDV infection was found among
                over 200 HIV/HBV co-infected patients in Tanzania. As
                false-positive serology results are common, screening results
                should be confirmed with a second test
Homogenization of high-contrast two-phase conductivities perturbed by a magnetic field. Comparison between dimension two and dimension three.

34 pagesInternational audienceHomogenized laws for sequences of high-contrast two-phase non-symmetric conductivities perturbed by a parameter $h$ are derived in two and three dimensions. The parameter $h$ characterizes the antisymmetric part of the conductivity for an idealized model of a conductor in the presence of a magnetic field. In dimension two an extension of the Dykhne transformation to non-periodic high conductivities permits to prove that the homogenized conductivity depends on $h$ through some homogenized matrix-valued function obtained in the absence of a magnetic field. This result is improved in the periodic framework thanks to an alternative approach, and illustrated by a cross-like thin structure. Using other tools, a fiber-reinforced medium in dimension three provides a quite different homogenized conductivity
ZFPIP/Zfp462 is maternally required for proper early Xenopus laevis development.

International audienceZFPIP (Zinc Finger Pbx1 Interacting Protein) has been recently identified in our laboratory in a yeast two hybrid screen using an embryonic mouse cDNA library and PBX1 as a bait. This gene encodes a large protein (250 kDa) that contains a bipartite NLS, numerous C2H2 zinc fingers and is highly conserved amongst vertebrates. In order to address the role of ZFPIP during embryonic development, we analysed the expression pattern of the gene and performed morpholinos injections into Xenopus laevis embryos. We first showed that the ZFPIP protein was maternally present in oocytes. Then, ZFPIP was detected from morula to neurula stages in the nucleus of the cells, with a gradient from animal to vegetal pole. By injection of ZFPIP morpholinos, we showed that morphant embryos were unable to undergo proper gastrulation and subsequently exhibited a persistent opened blastopore. Analysis of molecular and cellular events that were altered in morphant embryos highlighted an impairment of cell division processes as illustrated by atypical mitosis with aberrant metaphase, anaphase or telophase, incomplete chromosome segregation or conjointed nuclei. The overall data presented here demonstrated that ZFPIP was a major developing gene that acts in the very first steps of embryonic development of Xenopus laevis
Nearly Optimal Algorithms for the Decomposition of Multivariate Rational Functions and the Extended Lüroth's Theorem

International audienceThe extended Lüroth's Theorem says that if the transcendence degree of $\KK(\mathsf{f}_1,\dots,\mathsf{f}_m)/\KK$ is 1 then there exists $f \in \KK(\underline{X})$ such that $\KK(\mathsf{f}_1,\dots,\mathsf{f}_m)$ is equal to $\KK(f)$. In this paper we show how to compute $f$ with a probabilistic algorithm. We also describe a probabilistic and a deterministic algorithm for the decomposition of multivariate rational functions. The probabilistic algorithms proposed in this paper are softly optimal when $n$ is fixed and $d$ tends to infinity. We also give an indecomposability test based on gcd computations and Newton's polytope. In the last section, we show that we get a polynomial time algorithm, with a minor modification in the exponential time decomposition algorithm proposed by Gutierez-Rubio-Sevilla in 2001
Phase damping destroys quantum Fisher information of W states

We study the quantum Fisher information (QFI) of W states in the basic decoherence channels. We show that, as decoherence starts and increases, under i) depolarizing, QFI smoothly decays; ii) amplitude damping, QFI first exhibits a sudden drop to the shot noise level, then decreases to zero and finally increases back to the shot noise level; iii) phase damping, QFI is zero for all non-zero decoherence. We also find that on the contrary to GHZ states, QFI of W states in x and y directions are equal to each other and zero in z direction.Publisher's VersionAuthor Post Prin
Using Bisimulation Proof Techniques for the Analysis of Distributed Algorithms

International audienceWe illustrate the use of recently developped proof techniques for weak bisimulation by analysing a generic framework for the definition of distributed abstract machines based on a message-passing implementation. We first define this framework, and then focus on the algorithm which is used to route messages asynchronously to their destination. A first version of this algorithm can be analysed using the standard bisimulation up to expansion proof technique. We show that in a second, optimised version, rather complex behaviours appear, for which more sophisticated techniques, relying on termination arguments, are necessary to establish behavioural equivalence
New spectroscopic and polarimetric observations of the A0 supergiant HD 92207

Our recent search for the presence of a magnetic field in the bright earlyA-type supergiant HD92207 using FORS2 in spectropolarimetric mode revealed thepresence of a longitudinal magnetic field of the order of a few hundred Gauss.However, the definite confirmation of the magnetic nature of this objectremained pending due to the detection of short-term spectral variabilityprobably affecting the position of line profiles in left- and right-handpolarized spectra. We present new magnetic field measurements of HD92207obtained on three different epochs in 2013 and 2014 using FORS2 inspectropolarimetric mode. A 3sigma detection of the mean longitudinal magneticfield using the entire spectrum, <B_z>_all=104+-34G, was achieved inobservations obtained in 2014 January. At this epoch, the position of thespectral lines appeared stable. Our analysis of spectral line shapes recordedin opposite circularly polarized light, i.e. in light with opposite sense ofrotation, reveals that line profiles in the light polarized in a certaindirection appear slightly split. The mechanism causing such a behaviour in thecircularly polarized light is currently unknown. Trying to settle the issue ofshort-term variability, we searched for changes in the spectral line profileson a time scale of 8-10min using HARPS polarimetric spectra and on a time scaleof 3-4min using time series obtained with the CORALIE spectrograph. Nosignificant variability was detected on these time scales during the epochsstudied.Fil: Hubrig, S.. Leibniz-Institut f¨ur Astrophysik Potsdam; AlemaniaFil: Kholtygin, A. F.. Saint-Petersburg State University. Astronomical Institute; RusiaFil: Schöller, M.. European Southern Observatory; AlemaniaFil: Anderson, R. I.. Geneva University. Geneva Observatory; Suiza. Johns Hopkins University. Department of Physics and Astronomy; Estados UnidosFil: Saesen, S.. Geneva University. Geneva Observatory; SuizaFil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Cientí­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; ArgentinaFil: Ilyin, I.. Leibniz-Institut f¨ur Astrophysik Potsdam; AlemaniaFil: Briquet, M.. Université de Liège. Institut d’Astrophysique et de Géophysique; Bélgic
Trait Substitution Sequence process and Canonical Equation for age-structured populations

International audienceWe are interested in a stochastic model of trait and age-structured population undergoing mutation and selection. We start with a continuous time, discrete individual-centered population process. Taking the large population and rare mutations limits under a well-chosen time-scale separation condition, we obtain a jump process that generalizes the Trait Substitution Sequence process describing Adaptive Dynamics for populations without age structure. Under the additional assumption of small mutations, we derive an age-dependent ordinary differential equation that extends the Canonical Equation. These evolutionary approximations have never been introduced to our knowledge. They are based on ecological phenomena represented by PDEs that generalize the Gurtin-McCamy equation in Demography. Another particularity is that they involve a fitness function, describing the probability of invasion of the resident population by the mutant one, that can not always be computed explicitly. Examples illustrate how adding an age-structure enrich the modelling of structured population by including life history features such as senescence. In the cases considered, we establish the evolutionary approximations and study their long time behavior and the nature of their evolutionary singularities when computation is tractable. Numerical procedures and simulations are carried
Search for single b∗-quark production with the ATLAS detector at s√=7 TeV

The results of a search for an excited bottom-quark b∗ in pp collisions at √s = 7 TeV, using 4.7 fb−1 of
data collected by the ATLAS detector at the LHC are presented. In the model studied, a single b∗-quark is
produced through a chromomagnetic interaction and subsequently decays to a W boson and a top quark.
The search is performed in the dilepton and lepton+jets final states, which are combined to set limits on
b∗-quark couplings for a range of b∗-quark masses. For a benchmark with unit size chromomagnetic and
Standard Model-like electroweak b∗ couplings, b∗ quarks with masses less than 870 GeV are excluded at
the 95% credibility level.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, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; BRF and 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