pinecone/core-2020-05-10-deduplication huggingface dataset:
Contrast-Enhanced Cross Sectional Imaging and Capsule Endoscopy: New Perspectives for a Whole Picture of the Small Bowel

AbstractSmall bowel evaluation is a challenging task and has been revolutionized by high-quality contrasted sectional imaging (CT enterography - CTE) and magnetic resonance enterography (MRE) as well as by small bowel capsule endoscopy (SBCE).The decision of which technique to employ during the investigation of small bowel diseases is not always simple or straightforward. Moreover, contraindications may preclude the use of these techniques in some patients, and although they are noninvasive procedures, may present with various complications.SBCE plays a crucial role in the investigation of both obscure gastrointestinal bleeding and Crohn's disease, but it is also useful for surveillance of patients with Peutz-Jeghers syndrome, while CTE is very accurate in small bowel tumours and in established Crohn's Disease, and its use in patients presenting with gastrointestinal bleeding is increasing. MRE, an expensive and not widely available technique, is essential for the study of patients with Crohn's Disease, and presents an attractive alternative to SBCE in Peutz-Jeghers syndrome surveillance.These diagnostic modalities are often not competitive but synergistic techniques. Knowing their characteristics, strengths and limitations, indications, contraindications and potential complications, as well as the adaptation to local availability and expertise, is essential to better select which procedures to perform in each patient, both safely and effectively, in order to optimize management and improve patient outcomes
Search for the Standard Model Higgs boson in the decay channel H→ZZ(⁎)→4ℓ with 4.8 fb−1 of pp collision data at s=7 TeV with ATLAS

AbstractThis Letter presents a search for the Standard Model Higgs boson in the decay channel H→ZZ(⁎)→ℓ+ℓ−ℓ′+ℓ′−, where ℓ,ℓ′=e or μ, using proton–proton collisions at s=7 TeV recorded with the ATLAS detector and corresponding to an integrated luminosity of 4.8 fb−1. The four-lepton invariant mass distribution is compared with Standard Model background expectations to derive upper limits on the cross section of a Standard Model Higgs boson with a mass between 110 GeV and 600 GeV. The mass ranges 134–156 GeV, 182–233 GeV, 256–265 GeV and 268–415 GeV are excluded at the 95% confidence level. The largest upward deviations from the background-only hypothesis are observed for Higgs boson masses of 125 GeV, 244 GeV and 500 GeV with local significances of 2.1, 2.2 and 2.1 standard deviations, respectively. Once the look-elsewhere effect is considered, none of these excesses are significant
Extended dynamic subgraph statistics using h-index parameterized data structures

AbstractWe present techniques for maintaining subgraph frequencies in a dynamic graph, using data structures that are parameterized in terms of h, the h-index of the graph. Our methods extend previous results of Eppstein and Spiro for maintaining statistics for undirected subgraphs of size three to directed subgraphs and to subgraphs of size four. For the directed case, we provide a data structure to maintain counts for all 3-vertex induced subgraphs in O(h) amortized time per update. For the undirected case, we maintain the counts of size-four subgraphs in O(h2) amortized time per update. These extensions enable a number of new applications in Bioinformatics and Social Networking research
Areas of worklife as predictors of occupational health – A validation study in two German samples

AbstractBackground/aimOccupational health largely depends on the perceived fit between the employee's abilities and workplace demands/factors. The Areas of Worklife Scale (AWS) specifies six areas that are particularly relevant in this respect: workload, control, reward, community, fairness, and values. The current article aimed at investigating the factorial structure and the criterion validity of the German translation of the AWS.MethodsData were collected in two samples. In study 1, 1455 public service workers were surveyed using the six areas of worklife and well-being. In study 2, to investigate the well-established relationship between the AWS and burnout, the scale was administered to a nursing sample (N=443).ResultsHigh internal consistencies for all six scales were obtained in both studies. Exploratory as well as confirmatory factor analysis replicated the theoretically assumed six scale structure of the AWS. Evidence of criterion validity was found by multiple linear regression analysis with well-being as dependent measure (study 1). SEM analyses supported the hypothesized relationships between the six AWS dimensions and burnout (study 2). As predicted by Leiter and Maslach (2004, 2009), only some areas were directly associated with the health-related outcomes (well-being and burnout). In line with previous work, workload and values proved to be the most critical areas of worklife.ConclusionsThe six areas of worklife have been shown to be significant predictors of health-related outcomes. Based on the current studies, the German translation of the AWS can be proposed as a reliable and valid instrument to identify and specify critical work-related areas for occupational health
Zonal polynomials via Stanleyʼs coordinates and free cumulants

AbstractWe study zonal characters which are defined as suitably normalized coefficients in the expansion of zonal polynomials in terms of power-sum symmetric functions. We show that the zonal characters, just like the characters of the symmetric groups, admit a nice combinatorial description in terms of Stanleyʼs multirectangular coordinates of Young diagrams. We also study the analogue of Kerov polynomials, namely we express the zonal characters as polynomials in free cumulants and we give an explicit combinatorial interpretation of their coefficients. In this way, we prove two recent conjectures of Lassalle for Jack polynomials in the special case of zonal polynomials
Category-based task specific grasping

AbstractThe problem of finding stable grasps has been widely studied in robotics. However, in many applications the resulting grasps should not only be stable but also applicable for a particular task. Task-specific grasps are closely linked to object categories so that objects in a same category can be often used to perform the same task. This paper presents a probabilistic approach for task-specific stable grasping of objects with shape variations inside the category. An optimal grasp is found as a grasp that is maximally likely to be task compatible and stable taking into account shape uncertainty in a probabilistic context. The method requires only partial models of new objects for grasp generation and only few models and example grasps are used during the training stage. The experiments show that the approach can use multiple models to generalize to new objects in that it outperforms grasping based on the closest model. The method is shown to generate stable grasps for new objects belonging to the same class as well as for similar in shape objects of different categories
Synthesis and characterization of 5-(4-hydroxy-3-methoxy-phenyl)-3,7-dimethyl-5H-thiazolo[3,2-a]pyrimidine-2,6-dicarboxylic acid 2-ethyl ester 6-methyl ester and its 6-ethyl ester 5-naphthalene derivative

AbstractThe compounds 5-(4-hydroxy-3-methoxy-phenyl)-3,7-dimethyl-5H-thiazolo[3,2-a]pyrimidine-2,6-dicarboxylic acid 2-ethyl ester 6-methyl ester (2a) and 3,7-dimethyl-5-naphthalen-1-yl-5H-thiazolo[3,2-a]pyrimidine-2,6-dicarboxylic acid diethyl ester (2b) were synthesized by the base catalyzed cyclocondensation of 3,4-dihydropyrimidine-2-thione with ethylacetoacetate. IR, 1H NMR, 13C NMR spectra and elemental analysis were used to characterize these compounds. The structures were determined by single crystal X-ray diffraction. The crystal structure is stabilized by intermolecular O–H…N, C–H…O, C–H…π and π…π weak interactions
Measurement of the ratio B(D0→π+π−π0)/B(D0→K−π+π0) and the time-integrated CP asymmetry in D0→π+π−π0

AbstractWe report a high-statistics measurement of the relative branching fraction B(D0→π+π−π0)/B(D0→K−π+π0) using a 532 fb−1 data sample collected with the Belle detector at the KEKB asymmetric-energy e+e− collider. The measured value of the relative branching fraction is B(D0→π+π−π0)/B(D0→K−π+π0)=(10.12±0.04(stat)±0.18(syst))×10−2, which has an accuracy comparable to the world average. We also present a measurement of the time-integrated CP asymmetry in D0→π+π−π0 decay. The result, ACP=(0.43±1.30)%, shows no significant CP violation
Bacterial Zoonoses Transmitted by Household Pets: State-of-the-Art and Future Perspectives for Targeted Research and Policy Actions

SummaryThe close contact between household pets and people offers favourable conditions for bacterial transmission. In this article, the aetiology, prevalence, transmission, impact on human health and preventative measures are summarized for selected bacterial zoonoses transmissible by household pets. Six zoonoses representing distinct transmission routes were selected arbitrarily based on the available information on incidence and severity of pet-associated disease caused by zoonotic bacteria: bite infections and cat scratch disease (physical injuries), psittacosis (inhalation), leptospirosis (contact with urine), and campylobacteriosis and salmonellosis (faecal–oral ingestion). Antimicrobial resistance was also included due to the recent emergence of multidrug-resistant bacteria of zoonotic potential in dogs and cats. There is a general lack of data on pathogen prevalence in the relevant pet population and on the incidence of human infections attributable to pets. In order to address these gaps in knowledge, and to minimize the risk of human infection, actions at several levels are recommended, including: (1) coordinated surveillance of zoonotic pathogens and antimicrobial resistance in household pets, (2) studies to estimate the burden of human disease attributable to pets and to identify risk behaviours facilitating transmission, and (3) education of those in charge of pets, animal caretakers, veterinarians and human medical healthcare practitioners on the potential zoonotic risks associated with exposure to pets. Disease-specific recommendations include incentives to undertake research aimed at the development of new diagnostic tests, veterinary-specific antimicrobial products and vaccines, as well as initiatives to promote best practices in veterinary diagnostic laboratories and prudent antimicrobial usage
Radiographic adenoid evaluation – suggestion of referral parameters

AbstractObjectivethis study aimed to evaluate the usefulness of current radiographic measurements, which were originally conceived to evaluate adenoid hypertrophy, as potential referral parameters.Methodschildren aged from 4 to 14 years, of both genders, who presented nasal obstruction complaints, were subjected to cavum radiography. Radiographic examinations (n = 120) were evaluated according to categorical and quantitative parameters, and data were compared to gold-standard videonasopharyngoscopic examination, regarding accuracy (sensitivity, negative predictive value, specificity, and positive predictive value).Resultsradiographic grading systems presented low sensitivity for the identification of patients with two-thirds choanal space obstruction. However, some of these parameters presented relatively high specificity rates when three-quarters adenoid obstruction was the threshold of interest. Amongst the quantitative variables, a mathematical model was found to be more suitable for identifying patients with more than two-thirds obstruction.Conclusionthis model was shown to be potentially useful as a screening tool to include patients with, at least, two-thirds adenoid obstruction. Moreover, one of the categorical parameters was demonstrated to be relatively more useful, as well as a potentially safer assessment tool to exclude patients with less than three-quarters obstruction, to be indicated for adenoidectomy
Towards testing the unitarity of the 3×3 lepton flavor mixing matrix in a precision reactor antineutrino oscillation experiment

AbstractThe 3×3 Maki–Nakagawa–Sakata–Pontecorvo (MNSP) lepton flavor mixing matrix may be slightly non-unitary if the three active neutrinos are coupled with sterile neutrinos. We show that it is in principle possible to test whether the relation |Ve1|2+|Ve2|2+|Ve3|2=1 holds or not in a precision reactor antineutrino oscillation experiment, such as the recently proposed Daya Bay II experiment. We explore three categories of non-unitary effects on the 3×3 MNSP matrix: 1) the indirect effect in the (3+3) flavor mixing scenario where the three heavy sterile neutrinos do not take part in neutrino oscillations; 2) the direct effect in the (3+1) scenario where the light sterile neutrino can oscillate into the active ones; and 3) the interplay of both of them in the (3+1+2) scenario. We find that both the zero-distance effect and flavor mixing factors of different oscillation modes can be used to determine or constrain the sum of |Ve1|2, |Ve2|2 and |Ve3|2 and its possible deviation from one, and the active neutrino mixing angles θ12 and θ13 can be cleanly extracted even in the presence of light or heavy sterile neutrinos. Some useful analytical results are obtained for each of the three scenarios
Island landscapes and European culture : an ‘island studies’ perspective

The active imagining of a European identity needs to engage with the geographical possibilities,\ud
visualisations and performativities of place. It is all too easy but superficial and naive to\ud
consider geophysical parameters as the silent backdrop or empty canvas on which cultural initiatives\ud
unfold. European islands, amongst other features – mountains, coasts, forests – are imbued\ud
with powerful (and often Western) myths and tropes of place: they combine materiality and metaphor,\ud
presenting spaces that at once appear open and closed, fixed yet fluid, complete and peripheral,\ud
vulnerable yet resilient. The geo-social constitution of their culture is also subject to the\ud
vantage point of the observer, him/herself caught in the liminality between being a visitor, being\ud
an islander, and various other uneasily defined categories in between.\ud
Acknowledging the insights of the likes of Clifford Geertz, Ulf Hannerz, Anna-Maria Greverus\ud
and Owe Ronstro¨ m, this paper proposes that a critical analysis and appreciation of European culture\ud
in island landscapes must be one that engages with the nature of islandness; the locus of study\ud
should also be the focus of study. This paper also suggests epistemologies to flesh out this approach,\ud
its merits, but also the dangers associated with essentialising island spaces and peoples.peer-reviewe
A 80 au cavity in the disk around HD 34282

Context: Large cavities in disks are important testing grounds for the
mechanisms proposed to drive disk evolution and dispersion, such as dynamical
clearing by planets and photo-evaporation. Aims: We aim to resolve the large
cavity in the disk around HD 34282, such as has been predicted by previous
studies modeling the spectral energy distribution Methods: Using ALMA band 7
observations we study HD 34282 with a spatial resolution of 0.10\arcsec x
0.17\arcsec at 345 GHz. Results: We resolve the disk around HD 34282 into a
ring between 0.24\arcsec and 1.15\arcsec (78 and 374 au adopting a distance of
325 pc). The emission in this ring shows azimuthal asymmetry centered at a
radial distance of 0.46\arcsec and a position angle of 135 degrees and an
azimuthal FWHM of 51 degrees. We detect CO emission both inside the disk cavity
and as far out as 2.7 times the radial extent of the dust emission.
Conclusions: Both the large disk cavity and the azimuthal structure in the disk
around HD 34282 can be explained by the presence of a 50 jupiter mass brown
dwarf companion at a separation of ~ 0.1\arcsec.Comment: 9 pages, 8 figures. Accepted in A&A (05/07/2017
Radiation of a circulating quark in strongly coupled N = 4 super Yang-Mills theory

The energy density and angular distribution of power radiated by a quark undergoing circular motion in strongly coupled N  =  4 supersymmetric Yang‐Mills (SYM) theory is computed using gauge∕gravity duality. The results are qualitatively similar to that of synchrotron radiation produced by an electron in circular motion in classical electrodynamics: At large velocities the quark emits radiation in a narrow beam along its velocity vector with a characteristic opening angle α∼1∕γ and radial thickness scaling like ∼ 1/γ3.Talk presented by D. Nickel at QCD@Work, June 20-23rd, 2010, Martina Franca, Italy.
arXiv:1009.1885v1United States. Dept. of Energy. Office of High Energy and Nuclear Physics (contract DE-FG02-94ER40818)United States. Dept. of Energy. Office of High Energy and Nuclear Physics (grant DE-FG02-05ER41360)United States. Dept. of Energy. Office of High Energy and Nuclear Physics (grant DE-FG02- 00ER41132
Measurement of BB̄ angular correlations based on secondary vertex reconstruction at √s = 7 TeV

A measurement of the angular correlations between beauty and anti-beauty hadrons (BB̄) produced in pp collisions at a centre-of-mass energy of 7 TeV at the CERN LHC is presented, probing for the first time the region of small angular separation. The B hadrons are identified by the presence of displaced secondary vertices from their decays. The B hadron angular separation is reconstructed from the decay vertices and the primaryinteraction vertex. The differential BB̄ production cross section, measured from a data sample collected by CMS and corresponding to an integrated luminosity of 3.1 pb -1, shows that a sizable fraction of the BB̄ pairs are produced with small opening angles. These studies provide a test of QCD and further insight into the dynamics of bb̄ production.The Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authorit
Observation of top quark pairs produced in association with a vector boson in pp collisions at √s = 8 TeV

Measurements of the cross sections for top quark pairs produced in association with a W or Z boson are presented, using 8 TeV pp collision data corresponding to an integrated luminosity of 19.5 fb-1, collected by the CMS experiment at the LHC. Final states are selected in which the associated W boson decays to a charged lepton and a neutrino or the Z boson decays to two charged leptons. Signal events are identified by matching reconstructed objects in the detector to specific final state particles from tt̄W or tt̄Z decays. The tt̄W cross section is measured to be (Formula Presented) fb with a significance of 4.8 standard deviations from the background-only hypothesis. The tt̄Z cross section is measured to be (Formula Presented) fb with a significance of 6.4 standard deviations from the background-only hypothesis. These measurements are used to set bounds on five anomalous dimension-six operators that would affect the tt̄W and tt̄Z cross sections. © 2016, Springer Verlag. All rights reserved.The Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authorit
Carbon isotopes of graphite: Implications on fluid\ud
history

Stable carbon isotope geochemistry provides important information for the recognition of fundamental isotope exchange processes related to the movement of carbon in the lithosphere and permits the elaboration of models for the global carbon cycle. Carbon isotope ratios in fluid-Deposited graphite are powerful tools for unravelling the ultimate origin of carbon (organic matter, mantle, or carbonates) and help to constrain the fluid history and the mechanisms involved in graphite deposition.Graphite precipitation in fluid-deposited occurrences results from CO2- and/or CH4-bearing aqueous fluids. Fluid flow can be considered as both a closed (without replenishment of the fluid) or an open system (with renewal of the fluid by successive fluid batches). In closed systems, carbon isotope systematics in graphite is mainly governed by Rayleigh precipitation and/or by changes in temperature affecting the fractionation factor between fluid and graphite. Such processes result in zoned graphite crystals or in successive graphite generations showing, in both cases, isotopic variation towards progressive 13C or 12C enrichment (depending upon the dominant carbon phase in the fluid, CO2 or CH4, respectively). In open systems, in which carbon is episodically introduced along the fracture systems, the carbon systematics is more complex and individual graphite crystals may display oscillatory zoning because of Rayleigh precipitation or heterogeneous variations of d13C values when mixing of fluids or changes in the composition of the fluids are the mechanisms responsible for graphite precipitation
A new approach for modelling chromospheric evaporation in response to enhanced coronal heating : II. Non-uniform heating

This project has received funding from the Science and Technology Facilities Council (UK) through the consolidated grant ST/N000609/1 and the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement No 647214).We proposed that the use of an approximate “jump condition” at the solar transition region permits fast and accurate numerical solutions of the one dimensional hydrodynamic equations when the corona undergoes impulsive heating. In particular, it eliminates the need for the very short timesteps imposed by a highly resolved numerical grid. This paper presents further examples of the applicability of the method for cases of non-uniform heating, in particular, nanoflare trains (uniform in space but non-uniform in time) and spatially localised impulsive heating, including at the loop apex and base of the transition region. In all cases the overall behaviour of the coronal density and temperature shows good agreement with a fully resolved one dimensional model and is significantly better than the equivalent results from a 1D code run without using the jump condition but with the same coarse grid. A detailed assessment of the errors introduced by the jump condition is presented showing that the causes of discrepancy with the fully resolved code are (i) the neglect of the terms corresponding to the rate of change of total energy in the unresolved atmosphere; (ii) mass motions at the base of the transition region and (iii) for some cases with footpoint heating, an over-estimation of the radiative losses in the transition region.PostprintPeer reviewe
Scalar 3-point functions in CFT : renormalisation, beta functions and anomalies.

We present a comprehensive discussion of renormalisation of 3-point functions of scalar operators in conformal field theories in general dimension. We have previously shown that conformal symmetry uniquely determines the momentum-space 3-point functions in terms of certain integrals involving a product of three Bessel functions (triple-K integrals). The triple-K integrals diverge when the dimensions of operators satisfy certain relations and we discuss how to obtain renormalised 3-point functions in all cases. There are three different types of divergences: ultralocal, semilocal and nonlocal, and a given divergent triple-K integral may have any combination of them. Ultralocal divergences may be removed using local counterterms and this results in new conformal anomalies. Semilocal divergences may be removed by renormalising the sources, and this results in CFT correlators that satisfy Callan-Symanzik equations with beta functions. In the case of non-local divergences, it is the triple-K representation that is singular, not the 3-point function. Here, the CFT correlator is the coefficient of the leading nonlocal singularity, which satisfies all the expected conformal Ward identities. Such correlators exhibit enhanced symmetry: they are also invariant under dual conformal transformations where the momenta play the role of coordinates. When both anomalies and beta functions are present the correlators exhibit novel analytic structure containing products of logarithms of momenta. We illustrate our discussion with numerous examples, including free field realisations and AdS/CFT computations