pinecone/core-2020-05-10-deduplication huggingface dataset:
Optimizing the performance of the spectral/hp element method with collective linear algebra operations

As computing hardware evolves, increasing core counts mean that memory bandwidth is becoming the deciding factor in attaining peak performance of numerical methods. High-order finite element methods, such as those implemented in the spectral/hp framework Nektar++, are particularly well-suited to this environment. Unlike low-order methods that typically utilize sparse storage, matrices representing high-order operators have greater density and richer structure. In this paper, we show how these qualities can be exploited to increase runtime performance on nodes that comprise a typical high-performance computing system, by amalgamating the action of key operators on multiple elements into a single, memorye!cient block. We investigate di↵erent strategies for achieving optimal performance across a range of polynomial orders and element types. As these strategies all depend on external factors such as BLAS implementation and the geometry of interest, we present a technique for automatically selecting the most e!cient strategy at runtime
Can we learn from aviation : safety enhancements in transport by achieving human orientated resilient shipping environment

It is well reported in the literature that more than 80% of shipping accidents are attributed to Human/organisational Error. Maritime community has realised that despite all the increased safety standards and technological developments, accidents are still occurring and the systems are not resilient to errors at various levels. The FP7 SEAHORSE project focuses on safety in marine transport by addressing human and organisational factors through transfer of well proven practices and methodologies from air transport to marine transport in an effective, collaborative and innovative manner. This will be primarily achieved by introducing the principles of resilience engineering in an integrated framework which will result in multi-level resilience that linking individuals, team, multi-party teams and organisations in ship operation that ultimately enhancing shipping safety. This paper presents similarities and gaps between two transport sectors while establishing the principles of transfer of skills, technology from aviation to maritime, which includes but not limited to rules, standard operating procedures, safety culture, just culture and mandatory safety reporting methodologies. The paper further present the feasible areas for transfer, experience gained during the transfer of technology/skills from air to marine while outlining the resilience framework adapted to maritime transport
The Rise of Cohabitation in Latin America and the Caribbean, 1970–2011

This chapter offers a general overview of the often spectacular rise of the share of cohabitation in the process of union formation in 24 Latin American and Caribbean countries during the last 30 years of the twentieth and the first decade of the twenty-first century. First, we offer a brief ethnographic and historical sketch to illustrate the special position of many Latin American regions and sub-populations with respect to forms of partnership formation other than classic marriage. Second, we present the national trends in the rising share of cohabitation in union formation for men and women for the age groups 25–29 and 30–34. Third, we inspect the education and social class differentials by presenting the cross-sectional gradients over time. Fourth, we reflect on the framework of the “second demographic transition” and hence on the de-stigmatization of a number of other behaviors that were equally subject to strong normative restrictions in the past (e.g. divorce, abortion, homosexuality, suicide and euthanasia). Last, we deal with the household and family contexts of married persons and cohabitors respectively
Measurement of the leptonic decay width of J/ψ using initial state radiation

Using a data set of 2.93 fb$^{-1}$ taken at a center-of-mass energy of $\sqrt{s}$ = 3.773 GeV with the BESIII detector at the BEPCII collider, we measure the process $e^+e^-\rightarrow J/\psi\gamma\rightarrow \mu^+\mu^-\gamma$ and determine the product of the branching fraction and the electronic width $\mathcal B_{\mu\mu}\cdot \Gamma_{ee} = (333.4 \pm 2.5_{\rm stat} \pm 4.4_{\rm sys})$~eV. Using the earlier-published BESIII result for $\mathcal B_{\mu\mu}$ = (5.973 $\pm$ 0.007$_{\rm stat}$ $\pm$ 0.037$_{\rm sys}$)\%, we derive the $J/\psi$ electronic width $\Gamma_{ee}$~= (5.58 $\pm$ 0.05$_{\rm stat}$ $\pm$ 0.08$_{\rm sys}$) keV
The VIMOS Public Extragalactic Redshift Survey (VIPERS). Star formation history of passive red galaxies

R.T. acknowledge financial support from the European Research Council under the European Community’s Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement n. 202686.Aims. We trace the evolution and the star formation history of passive red galaxies, using a subset of the VIMOS Public Extragalactic Redshift Survey (VIPERS). The detailed spectral analysis of stellar populations of intermediate-redshift passive red galaxies allows the build up of their stellar content to be followed over the last 8 billion years. Methods. We extracted a sample of passive red galaxies in the redshift range 0.4 Results. We find that at z ~ 1 stellar populations in low-mass passive red galaxies are younger than in high-mass passive red galaxies, similar to what is observed at the present epoch. Over the full analyzed redshift range 0.4 < z < 1.0 and stellar mass range 10 < log (Mstar/M⊙) < 12, the D4000 index increases with redshift, while HδA gets lower. This implies that the stellar populations are getting older with increasing stellar mass. Comparison to the spectra of passive red galaxies in the SDSS survey (z ~ 0.2) shows that the shape of the relations of D4000 and HδA with stellar mass has not changed significantly with redshift. Assuming a single burst formation, this implies that high-mass passive red galaxies formed their stars at zform ~ 1.7, while low-mass galaxies formed their main stellar populations more recently, at zform ~ 1. The consistency of these results, which were obtained using two independent estimators of the formation redshift (D4000 and HδA), further strengthens a scenario in which star formation proceeds from higher to lower mass systems as time passes, i.e., what has become known as the downsizing picture.PostprintPeer reviewe
The sexual adjustment process of cancer patients and their partners: a qualitative evidence  synthesis

Abstract When confronted with cancer,aprominent challenge for patients and their partners is their changed sexual relationship.
An empirically based theoretical model of the sexual adaptation process during cancer might be helpful in guiding the development of adequate interventions for couples who struggle with their sexual relationship. Therefore, the purpose of this study was to synthesize evidence from primary qualitative research studies and to arrive at a detailed description of the process of sexual adjustment during cancer. We conducted a qualitative evidence synthesis of a purposeful sample of 16 qualitative papers, using the meta-ethnography approach to synthesis. We found that the subsequent studies used different theoretical approaches to describe the sexual adaptation process. This led to three divergent sexual adaptation processes: (1) the pathway of grief and mourning, depicting sexual changes as a loss; (2) the pathway of restructuring, depicting the adjustment process toward sexual changes as a cognitive process with a strong focus on the social and cultural forces that shape the values and experiences of sexuality; and (3) the pathway of sexual rehabilitation, depicting sexual changes as a bodily dysfunction that needs treatment and specific behavioral strategies.
All three pathways have theirown opportunities and challenges. A greater awareness of these different pathways could help healthcare providers to better understand the ways a particular couple might cope with changed sexuality, offering them opportunities to discover alternative pathways for sexual adjustment.status: publishe
Noncommutative Pieri Operators on Posets

AbstractWe consider graded representations of the algebra NC of noncommutative symmetric functions on the Z-linear span of a graded poset P. The matrix coefficients of such a representation give a Hopf morphism from a Hopf algebra HP generated by the intervals of P to the Hopf algebra of quasi-symmetric functions. This provides a unified construction of quasi-symmetric generating functions from different branches of algebraic combinatorics, and this construction is useful for transferring techniques and ideas between these branches. In particular we show that the (Hopf) algebra of Billera and Liu related to Eulerian posets is dual to the peak (Hopf) algebra of Stembridge related to enriched P-partitions and connect this to the combinatorics of the Schubert calculus for isotropic flag manifolds
Knowledge of undergraduate nursing course teachers on the prevention and care of peristomal skin

AbstractObjectiveTo evaluate the knowledge of undergraduate nursing course teachers on peristomal skin care in individuals with intestinal stoma.MethodsThis is an exploratory, analytical and cross-sectional study, conducted with undergraduate nursing course teachers from two private universities in the city of São Paulo, named A and B. The sample consisted of 42 teachers/nurses, being 22 from University A and 20 from University B, who supervised the internship at Hospital Vila Nova Cachoeirinha. With the aim to collect data, a structured questionnaire consisting of 10 questions (checklist) was used; each question in the checklist had correct and wrong answers. The teachers had to indicate with “x” the correct answer. The questionnaire was delivered to teachers/nurses on a predetermined day. Data collection was carried out on August 2006.ResultsThe majority of study participants know that stoma demarcation must be performed preoperatively, and that it is important to educate the patient about surgery, care for the stoma and on the collecting device, as well as to perform a sensitivity test for the equipment. The hygiene should be performed with mild soap and water and with a piece of clean, soft, damp cotton cloth without rubbing, and the skin must be kept dry. The hair removal should be done with curved tip scissors, cutting close to the abdominal wall.ConclusionThe results showed that, although most of the participants have a basic knowledge about stomized patients care, updating and improvement are needed
The C. elegans HP1 homologue HPL-2 and the LIN-13 zinc finger protein form a complex implicated in vulval development

AbstractHP1 proteins are essential components of heterochromatin and contribute to the transcriptional repression of euchromatic genes via the recruitment to specific promoters by corepressor proteins including TIF1 and Rb. The Caenorhabditis elegans HP1 homologue HPL-2 acts in the “synMuv” (synthetic multivulval) pathway, which defines redundant negative regulators of a Ras signaling cascade required for vulval induction. Several synMuv genes encode for chromatin-associated proteins involved in transcriptional regulation, including Rb and components of the Mi-2/NuRD and TIP60/NuA4 chromatin remodeling complexes. Here, we show that HPL-2 physically interacts in vitro and in vivo with the multiple zinc finger protein LIN-13, another member of the synMuv pathway. A variant of the conserved PXVXL motif found in many HP1-interacting proteins mediates LIN-13 binding to the CSD of HPL-2. We further show by in vivo localization studies that LIN-13 is required for HPL-2 recruitment in nuclear foci. Our data suggest that the LIN-13/HPL-2 complex may physically link a subset of the Rb related synMuv proteins to chromatin
Interactions between mannose-binding lectin and MASPs during complement activation by the lectin pathway

AbstractThe lectin pathway of complement performs a key role within the immune system by recognising pathogens through patterns of sugar moieties displayed on their cell surfaces and neutralising them via an antibody-independent reaction cascade. While particularly important during early childhood before the adaptive immune system is established, or when adaptive immunity is compromised, it has a protective function throughout life, neutralising invading pathogens directly and helping to stimulate and direct an effective immune response. Complement activation is initiated when complexes comprising mannose-binding lectin (MBL) or serum ficolins and MBL-associated serine protease-2 (MASP-2) bind to pathogens. Binding induces conformational changes in these complexes, leading to autoactivation of the MASPs, which in turn activate the downstream reaction cascade. A major goal in complement research is to understand the molecular events that trigger complement activation. Over the last few years, structure–function studies have improved our knowledge of the way in which MBL binds to MASPs by defining the portions of these proteins that interact and by solving the structures of key protein fragments. In this review, I will summarise the main findings of these studies and describe current theories to explain how the components combine to initiate the reaction cascade
Study of the Cabibbo-suppressed decay modes D0→π−π+ and D0→K−K+

AbstractUsing data from the FOCUS (E831) experiment at Fermilab, we present a new measurement for the branching ratios of the Cabibbo-suppressed decay modes D0→π−π+ and D0→K−K+. We measured: Γ(D0→K−K+)/Γ(D0→π−π+)=2.81±0.10(stat)±0.06(syst), Γ(D0→K−K+)/Γ(D0→K−π+)=0.0993±0.0014(stat)±0.0014(syst), and Γ(D0→π−π+)/Γ(D0→K−π+)=0.0353±0.0012(stat)±0.0006(syst). These values have been combined with other experimental data to extract the ratios of isospin amplitudes and the phase shifts for the D→KK and D→ππ decay channels
Admiration regulates social hierarchy: Antecedents, dispositions, and effects on intergroup behavior

AbstractIn four studies, we report evidence that admiration affects intergroup behaviors that regulate social hierarchy. We demonstrate that manipulating the legitimacy of status relations affects admiration for the dominant and that this emotion negatively predicts political action tendencies aimed at social change. In addition, we show that greater warmth and competence lead to greater admiration for an outgroup, which in turn positively predicts deferential behavior and intergroup learning. We also demonstrate that, for those with a disposition to feel admiration, increasing admiration for an outgroup decreases willingness to take political action against that outgroup. Finally, we show that when the object of admiration is a subversive “martyr,” admiration positively predicts political action tendencies and behavior aimed at challenging the status quo. These findings provide the first evidence for the important role of admiration in regulating social hierarchy
H2FC SUPERGEN: An overview of the Hydrogen and Fuel Cell research across the UK

AbstractThe United Kingdom has a vast scientific base across the entire Hydrogen and Fuel Cell research landscape, with a world class academic community coupled with significant industrial activity from both UK-based Hydrogen and Fuel Cell companies and global companies with a strong presence within the country. The Hydrogen and Fuel Cell (H2FC) SUPERGEN Hub, funded by the Engineering and Physical Sciences Research Council (EPSRC), was established in 2012 as a five-year programme to bring the UK's H2FC research community together. Here we present the UK's current Hydrogen and Fuel Cell activities along with the role of the H2FC SUPERGEN Hub
The complex geometry of a domain related to μ-synthesis

AbstractWe establish the basic complex geometry and function theory of the pentablock P, which is the bounded domainP={(a21,trA,det⁡A):A=[aij]i,j=12∈B} where B denotes the open unit ball in the space of 2×2 complex matrices. We prove several characterisations of the domain. We show that P arises naturally in connection with a certain robust stabilisation problem in control theory, the problem of μ-synthesis. We describe the distinguished boundary of P and exhibit a 4-parameter group of automorphisms of P. We demonstrate connections between the function theories of P and B. We show that P is polynomially convex and starlike, and we show that the real pentablock P∩R3 is a convex set bounded by five faces, three of them flat and two curved
Measurement of the ratio of the 3-jet to 2-jet cross sections in pp collisions at s=7 TeV

AbstractA measurement of the ratio of the inclusive 3-jet to 2-jet cross sections as a function of the total jet transverse momentum, HT, in the range 0.2<HT<2.5 TeV is presented. The data have been collected at a proton–proton centre-of-mass energy of 7 TeV with the CMS detector at the LHC, and correspond to an integrated luminosity of 36 pb−1. Comparisons are made between the data and the predictions of different QCD-based Monte Carlo models for multijet production. All models considered in this study are consistent with the data for HT>0.5 TeV. This measurement extends to an HT range that has not been explored before
Functional Architecture of Olfactory Ionotropic Glutamate Receptors

SummaryIonotropic glutamate receptors (iGluRs) are ligand-gated ion channels that mediate chemical communication between neurons at synapses. A variant iGluR subfamily, the Ionotropic Receptors (IRs), was recently proposed to detect environmental volatile chemicals in olfactory cilia. Here, we elucidate how these peripheral chemosensors have evolved mechanistically from their iGluR ancestors. Using a Drosophila model, we demonstrate that IRs act in combinations of up to three subunits, comprising individual odor-specific receptors and one or two broadly expressed coreceptors. Heteromeric IR complex formation is necessary and sufficient for trafficking to cilia and mediating odor-evoked electrophysiological responses in vivo and in vitro. IRs display heterogeneous ion conduction specificities related to their variable pore sequences, and divergent ligand-binding domains function in odor recognition and cilia localization. Our results provide insights into the conserved and distinct architecture of these olfactory and synaptic ion channels and offer perspectives into the use of IRs as genetically encoded chemical sensors.Video Abstrac
Vitamin C supply to bronchial epithelial cells linked to glutathione availability in elf — A role for secreted γ-glutamyltransferase?

AbstractPrevious work in our laboratory has shown that glutathione (GSH) availability is linked to cellular supply of ascorbic acid, through the action of γ-glutamyltransferase (GGT). This enzyme activity is expressed in bronchial epithelia, and is also secreted in epithelial lining fluid. We verified thus the possibility that GGT-mediated metabolism of glutathione may favour the supply of ascorbic acid to bronchial cells. Using human BEAS-2B cells transfected with GGT cDNA, as well as WT cells exposed to ELF-like GGT concentrations, we observed that indeed much higher (5–10 fold) levels of ascorbic acid are accumulated in the presence of GSH and active GGT. The data suggest that administration of aerosolized GSH to CF patients may as well concur to sustain the vitamin C status of bronchial epithelia
Is the nonmonotonic behavior in the cross section of ϕ photoproduction near threshold a signature of a resonance?

AbstractWe study whether the nonmonotonic behavior found in the differential cross section of the ϕ-meson photoproduction near threshold can be described by a resonance. Namely, we add a resonance to a model consisting of Pomeron and (π,η) exchange by fiat and see if, with a suitable assignment of spin and parity, mass and width, as well as the coupling constants, one would be able to obtain a good description to all the data reported by the LEPS Collaboration in the low-energy region. The resonant contribution is evaluated by using an effective Lagrangian approach. We find that, with the assumption of a JP=3/2− resonance with mass of 2.10±0.03 GeV and width of 0.465±0.141 GeV, LEPS data can indeed be well described. The ratio of the helicity amplitudes A12/A32 calculated from the resulting coupling constants differs in sign from that of the known D13(2080). We further find that the addition of this postulated resonance can substantially improve the agreement between the existing theoretical predictions and the recent ω photoproduction data if a large value of the OZI evading parameter xOZI=12 is assumed for the resonance
Fq[Mn], Fq[GLn] and Fq[SLn] as quantized hyperalgebras

AbstractWithin the quantum function algebra Fq[GLn], we study the subset Fq[GLn]—introduced in [F. Gavarini, Quantization of Poisson groups, Pacific J. Math. 186 (1998) 217–266]—of all elements of Fq[GLn] which are Z[q,q−1]-valued when paired with Uq(gln), the unrestricted Z[q,q−1]-integral form of Uq(gln) introduced by De Concini, Kac and Procesi. In particular we obtain a presentation of it by generators and relations, and a PBW-like theorem. Moreover, we give a direct proof that Fq[GLn] is a Hopf subalgebra of Fq[GLn], and that Fq[GLn]|q=1≅UZ(gln∗). We describe explicitly its specializations at roots of 1, say ε, and the associated quantum Frobenius (epi)morphism from Fε[GLn] to F1[GLn]≅UZ(gln∗), also introduced in [F. Gavarini, Quantization of Poisson groups, Pacific J. Math. 186 (1998) 217–266]. The same analysis is done for Fq[SLn] and (as key step) for Fq[Mn]
Evolution of Martensitic Microstructure of Carbon Steel Tempered at Low Temperatures

AbstractThis work presents the microstructural changes of a carbon steel during tempering at low temperatures (first stage of tempering), and its effects in the second and third stages. These changes are determined by internal friction. Internal friction is measured in a forced vibration mode at 5Hz, in a temperature range from 300 to 600K. Four internal friction peaks appear: S1 at 350K, P1 at 380K, P2 at 440K, P3 at 480K. S1 only appears in the sample tempered at 380K for 20hours, and this can be related to the reduction of the martensite tetragonality. The height of P1 is lowest when the intensity of tempering is increased. This height can be related to the quantity of epsilon carbide than precipitate. The heights of P2 and P3 are not changed significantly, but the difference of temperature between both is lowest when the tempering intensity is increased. This suggests than the dissolution of epsilon carbide and formation of cementite takes places in a lowest range of temperatur
Cosmological constraints on ghost dark energy in the Brans–Dicke theory by using MCMC approach

AbstractBy using a Markov Chain Monte Carlo simulation, we investigate cosmological constraints on the ghost dark energy (GDE) model in the framework of the Brans–Dicke (BD) theory. A combination of the latest observational data of the cosmic microwave background radiation data from seven-year WMAP, the baryon acoustic oscillation data form the SDSS, the supernovae type Ia data from the Union2 and the X-ray gas mass fraction data from the Chandra X-ray observations of the largest relaxed galaxy clusters are used to perform constraints on GDE in the BD cosmology. In this paper, we consider both flat and non-flat universes together with interaction between dark matter and dark energy. The main cosmological parameters are obtained as: Ωbh2=0.0223−0.0013+0.0016, Ωch2=0.1149−0.0104+0.0088 and Ωk=0.0005−0.0073+0.0025. In addition, the Brans–Dicke parameter ω is estimated as 1/ω≃0.002