pinecone/core-2020-05-10-deduplication huggingface dataset:
An adjustment cost model of social mobility.

We analyze herein the effects of the human capital adjustment cost on social mobility. Such an adjustment cost is modeled as a rising marginal cost schedule for augmenting human capital. We use a general human capital technology, which disentangles the adjustment cost from the depreciation cost of the human capital. Missing credit markets prevent individuals from equalizing the initial differences in the human capital. We find that a higher adjustment cost for human capital acquisition slows down the social mobility and results in a persistent inequality across generations. On the other hand, a higher rate of human capital depreciation could increase mobility via a positive effect on new investment. The quantitative analysis of our model suggests that the human capital adjustment cost is nontrivial to account for the observed persistence of inequality and social mobility. In addition, we find that the government redistribution policy could account for the large observed variation in estimates of social mobility
Viperatoxin-II : a novel viper venom protein as an effective bactericidal agent

Infections caused by methicillin-resistant Staphylococcus aureus (MRSA) have become a rising threat to public health. There is an urgent need for development of promising new therapeutic agents against drug resistant bacteria like S. aureus. This report discusses purification and characterization of proteins from Indian Russell's viper snake venom. Novel 15-kDa proteins called "Viperatoxin" (VipTx-I and VipTx-II) were extracted from the whole venom and evaluated using in vitro antimicrobial experiments. The N-terminal amino acid sequence of "Viperatoxin" showed high sequence homology to daboiatoxin isolated from the same venom and also matched phospholipase A2 (PLA2) enzymes isolated from other snake venoms. In an in vitro plate assay, VipTx-II but not VipTx-I showed strong antimicrobial effects against S. aureus and Burkholderia pseudomallei (KHW & TES), Proteus vulgaris and P. mirabilis. The VipTx-II was further tested by a broth-dilution assay at 100-3.1μg/ml concentrations. The most potent bactericidal effect was found at the lowest dilutions (MICs of 6.25μg/ml) against B. pseudomallei, S. aureus and P. vulgaris (MICs of 12.25μg/ml). Electron microscopic investigation revealed that the protein-induced bactericidal potency was closely associated with pore formation and membrane damage, even at the lowest concentrations (<20μg/ml). The toxin caused a low level of cytotoxic effects as observed in human (THP-1) cells at higher concentrations. Molecular weight determinations of VipTx-II by sodium dodecyl sulfate-polyacrylamide gel electrophoresis showed one major, along with a few minor bands. The results indicate that VipTx-II plays a significant role in bactericidal and membrane damaging effects in vitro. Non-cytotoxic properties on human cells highlight it as a promising candidate for further evaluation of antimicrobial potential in vivo
Cosmological Constant from a Deformation of the Wheeler-DeWitt Equation

In this paper, we consider the Wheeler-DeWitt equation modified by a
deformation of the second quantized canonical commutation relations. Such
modified commutation relations are induced by a Generalized Uncertainty
Principle. Since the Wheeler-DeWitt equation can be related to a
Sturm-Liouville problem where the associated eigenvalue can be interpreted as
the cosmological constant, it is possible to explicitly relate such an
eigenvalue to the deformation parameter of the corresponding Wheeler-DeWitt
equation. The analysis is performed in a Mini-Superspace approach where the
scale factor appears as the only degree of freedom. The deformation of the
Wheeler-DeWitt equation gives rise to a Cosmological Constant even in absence
of matter fields. As a Cosmological Constant cannot exists in absence of the
matter fields in the undeformed Mini-Superspace approach, so the existence of a
non-vanishing Cosmological Constant is a direct consequence of the deformation
by the Generalized Uncertainty Principle. In fact, we are able to demonstrate
that a non-vanishing Cosmological Constant exists even in the deformed flat
space. We also discuss the consequences of this deformation on the big bang
singularity.Comment: 11 pages, 0 figures, Accepted in Nucl. Phys.
Exclusion of super-soft symmetry energies and neutron star properties in
  the saturated Nambu-Jona-Lasinio model

Considering the importance of Lorentz invariance and chiral symmetry, we
adopt the saturated Nambu-Jona-Lasinio (NJL) model to study the density
dependence of the symmetry energy. The super-soft symmetry energy can be
obtained from introducing a chiral isovector-vector interaction in the
lagrangian, but should be ruled out by the neutron star (NS) stability in the
mean-field approximation. It is found that the isovector-scalar interaction in
the NJL model can play an important role in softening of the symmetry energy.
We have investigated NS properties. The NS maximum mass obtained with various
isovector-scalar couplings and momentum cutoffs is well above the $2M_\odot$,
and the NS radius obtained well meets the limits extracted from recent
measurements.Comment: 7pages,5figure
Measurement of the t-tbar production cross section in the e-mu channel
  in proton-proton collisions at sqrt(s) = 7 and 8 TeV

The inclusive cross section for top quark pair production is measured in
proton-proton collisions at sqrt(s) = 7 and 8 TeV, corresponding to 5.0 and
19.7 invers-femtobarns, respectively, with the CMS experiment at the LHC. The
cross sections are measured in the electron-muon channel using a binned
likelihood fit to multi-differential final state distributions related to
identified b quark jets and other jets in the event. The measured cross section
values are 173.6 +/- 2.1 (stat) +4.5-4.0 (syst) +/- 3.8 (lumi) pb at sqrt(s) =
7 TeV, and 244.9 +/- 1.4 (stat) +6.3-5.5 (syst) +/- 6.4 (lumi) pb at sqrt(s) =
8 TeV, in good agreement with QCD calculations at next-to-next-to-leading-order
accuracy. The ratio of the cross sections measured at 7 and 8 TeV is
determined, as well as cross sections in the fiducial regions defined by the
acceptance requirements on the two charged leptons in the final state. The
cross section results are used to determine the top quark pole mass via the
dependence of the theoretically predicted cross section on the mass, giving a
best result of 173.8 +1.7-1.8 GeV. The data at sqrt(s) = 8 TeV are also used to
set limits, for two neutralino mass values, on the pair production of
supersymmetric top squarks with masses close to the top quark mass.Comment: Replaced with published version. Added the journal reference and DOI.
  All figures and tables can be found at
  http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-13-004/index.htm
Shape coexistence and the role of axial asymmetry in $^{72}$Ge

The quadrupole collectivity of low-lying states and the anomalous behavior of
the $0^+_2$ and $2^+_3$ levels in $^{72}$Ge are investigated via projectile
multi-step Coulomb excitation with GRETINA and CHICO-2. A total of forty six
$E2$ and $M1$ matrix elements connecting fourteen low-lying levels were
determined using the least-squares search code, gosia. Evidence for triaxiality
and shape coexistence, based on the model-independent shape invariants deduced
from the Kumar-Cline sum rule, is presented. These are interpreted using a
simple two-state mixing model as well as multistate mixing calculations carried
out within the framework of the triaxial rotor model. The results represent a
significant milestone towards the understanding of the unusual structure of
this nucleus.Comment: 7 pages and 7 figure
Measurement of the inclusive isolated prompt photon cross section in
  $pp$ collisions at $\sqrt{s} = 8$ TeV with the ATLAS detector

A measurement of the cross section for the inclusive production of isolated
prompt photons in proton-proton collisions at a centre-of-mass energy of
$\sqrt{s} = 8$ TeV is presented. The measurement covers the pseudo rapidity
ranges $|\eta^{\gamma}| < 1.37$ and $1.56 \leq |\eta^{\gamma}| < 2.37$ in the
transverse energy range $25 < E_{\rm T}^{\gamma} < 1500$ GeV. The results are
based on an integrated luminosity of 20.2 fb$^{-1}$, recorded by the ATLAS
detector at the LHC. Photon candidates are identified by combining information
from the calorimeters and the inner tracker. The background is subtracted using
a data-driven technique, based on the observed calorimeter shower-shape
variables and the deposition of hadronic energy in a narrow cone around the
photon candidate. The measured cross sections are compared with leading-order
and next-to-leading order perturbative QCD calculations and are found to be in
a good agreement over ten orders of magnitude.Comment: 26 pages plus author list (43 pages total), 6 figures, 6 tables,
  published version, all figures including auxiliary figures are available at
  https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2014-09
Single-inclusive jet production in electron-nucleon collisions through
  next-to-next-to-leading order in perturbative QCD

We compute the ${\cal O}(\alpha^2\alpha_s^2)$ perturbative corrections to
inclusive jet production in electron-nucleon collisions. This process is of
particular interest to the physics program of a future Electron Ion Collider
(EIC). We include all relevant partonic processes, including deep-inelastic
scattering contributions, photon-initiated corrections, and parton-parton
scattering terms that first appear at this order. Upon integration over the
final-state hadronic phase space we validate our results for the deep-inelastic
corrections against the known next-to-next-to-leading order (NNLO) structure
functions. Our calculation uses the $N$-jettiness subtraction scheme for
performing higher-order computations, and allows for a completely differential
description of the deep-inelastic scattering process. We describe the
application of this method to inclusive jet production in detail, and present
phenomenological results for the proposed EIC. The NNLO corrections have a
non-trivial dependence on the jet kinematics and arise from an intricate
interplay between all contributing partonic channels.Comment: 9 pages, 4 figure
Measurement of the lifetime of the B+c meson using the B+c→J/ψπ+ decay mode

See paper for full list of authors - 19 pages, 3 figuresInternational audienceThe difference in total widths between the B+c and B+ mesons is measured using 3.0fb−1 of data collected by the LHCb experiment in 7 and 8 TeV centre-of-mass energy proton-proton collisions at the LHC. Through the study of the time evolution of B+c→J/ψπ+ and B+→J/ψK+ decays, the width difference is measured to beΔΓ≡ΓB+c−ΓB+=4.46±0.14±0.07mm−1c,where the first uncertainty is statistical and the second systematic. The known lifetime of the B+ meson is used to convert this to a precise measurement of the B+c lifetime,τB+c=513.4±11.0±5.7fs,where the first uncertainty is statistical and the second systematic
Search for wz resonances in the fully leptonic channel using pp collisions at root s=8 TeV with the ATLAS detector

A search for resonant WZ production in the l nu l'l' (l, l' = e, mu) decay channel using 20.3 fb(-1) of root s = 8 TeV pp collision data collected by the ATLAS experiment at LHC is presented. No significant deviation from the Standard Model prediction is observed and upper limits on the production cross sections of WZ resonances from an extended gauge model W' and from a simplified model of heavy vector triplets are derived. A corresponding observed (expected) lower mass limit of 1.52 (1.49) TeV is derived for the W' at the 95% confidence level
Measurement of the production cross section of prompt j/psi mesons in association with a w (+/-) boson in pp collisions root s=7 TeV with the ATLAS detector

The process pp -> W (+/-) J/psi provides a powerful probe of the production mechanism of charmonium in hadronic collisions, and is also sensitive to multiple parton interactions in the colliding protons. Using the 2011 ATLAS dataset of 4.5 fb(-1) of root s= 7 TeV pp collisions at the LHC, the first observation is made of the production of W (+/-) + prompt J/psi events in hadronic collisions, using W (+/-) -> mu nu(mu) and J/psi -> mu(+)mu(-) center dot A yield of W (+/-) + prompt J/psi events is observed, with a statistical significance of 5.1 sigma. The production rate as a ratio to the inclusive W (+/-) boson production rate is measured, and the double parton scattering contribution to the cross section is estimated
Approximating the limit: the interaction between 'almost' and some temporal connectives in Italian

International audienceThis paper focuses on the interpretation of the Italian approximative adverb 'almost' by primarily looking at cases in which it modifies temporal connectives, a domain which, to our knowledge, has been largely unexplored thus far. Consideration of this domain supports the need for a scalar account of the semantics of (close in spirit to Hitzeman's semantic analysis of , in: Canakis et al. (eds) Papers from the 28th regional meeting of the Chicago Linguistic Society, 1992). When paired with suitable analyses of temporal connectives, such an account can provide a simple explanation of the patterns of implication that are observed when modifies locational (e.g. 'when'), directional (e.g. 'until' and 'since'), and event-sequencing temporal connectives (e.g. 'before' and 'after'). A challenging empirical phenomenon that is observed is a contrast between the modification of and by , on the one hand, and the modification of and by the same adverb, on the other. While and behave symmetrically, a puzzling asymmetry is observed between and . To explain the asymmetry, we propose an analysis of and on which the former has the meaning of the temporal comparative 'earlier', while the latter is seen as an atomic predicate denoting temporal succession between events (Del Prete, Nat Lang Semantics 16:157-203, 2008). We show that the same pattern of implication observed for is attested when modifies overt comparatives, and propose a pragmatic analysis of this pattern that uniformly applies to both cases, thus providing new evidence for the claim that is underlyingly a comparative. A major point of this paper is a discussion of the notion of scale which is relevant for the semantics of ; in particular, we show that the notion of Horn (entailment-based) scale is not well-suited for handling modification of temporal connectives, and that a more general notion of scale is required in order to provide a uniform analysis of as a cross-categorial modifier
Spectroscopic study of early-type multiple stellar systems II. New binary subsystems.

Context. This work is part of a long-term spectroscopic study of a sample of 30 multiple stars with early-type components. In this second paper we present the results for six multiple systems in which new stellar components have been detected.
Aims. The main aim is to increase the knowledge of stellar properties and dynamical structure of early-type multiple stellar systems.
Methods. Using spectroscopic observations taken over a time baseline of more than five years we measured radial velocities by cross-correlations and spectrally separated the double-lined systems. In addition to the discovery of objects with double-lined spectra, the existence of new spectroscopic subsystems were inferred from the radial velocity variations of single-lined components and through the variation of the barycentric velocity of double-lined subsystems. Orbital elements were calculated when possible.
Results. Seven new stellar components and two members that we expect to confirm with new observations have been discovered in the six studied multiples. We present orbital parameters for two double-lined binaries and preliminary orbits for three single-lined spectroscopic binaries. Five of the six analysed systems are quadruples, while the remaining has five components distributed on four hierarchical levels. These multiplicity orders are in fact lower limits, since these systems lack high-resolution visual observations and additional hierarchical levels might exist in that separation range.
Conclusions. The six analysed systems have a higher degree of multiplicity and a more complex hierarchical structure than previously known, which suggests that high-order multiple systems are significantly more frequent than currently estimated. The long-term spectroscopic monitoring of multiple systems has shown to be useful for the detection of companions in intermediate hierarchical levels.Fil: Veramendi Pont, María Eugenia. Consejo Nacional de Investigaciones Cienti­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; ArgentinaFil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Cienti­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentin
The Genotype-Tissue Expression (GTEx) project.

GTex consortiumGenome-wide association studies have identified thousands of loci for common diseases, but, for the majority of these, the mechanisms underlying disease susceptibility remain unknown. Most associated variants are not correlated with protein-coding changes, suggesting that polymorphisms in regulatory regions probably contribute to many disease phenotypes. Here we describe the Genotype-Tissue Expression (GTEx) project, which will establish a resource database and associated tissue bank for the scientific community to study the relationship between genetic variation and gene expression in human tissues
Metallicity dependence of high-mass X-ray binary populations

International audienceContext. High-mass X-ray binaries (HMXBs) might have contributed a non-negligible fraction of the energy feedback to the interstellar and intergalactic media at high redshift, becoming important sources for the heating and ionization history of the Universe. However, the importance of this contribution depends on the hypothesized increase in the number of HMXBs formed in low-metallicity galaxies and in their luminosities.Aims. In this work we test the aforementioned hypothesis, and quantify the metallicity dependence of HMXB population properties.Methods. We compile from the literature a large set of data on the sizes and X-ray luminosities of HMXB populations in nearby galaxies with known metallicities and star formation rates. We use Bayesian inference to fit simple Monte Carlo models that describe the metallicity dependence of the size and luminosity of the HMXB populations.Results. We find that HMXBs are typically ten times more numerous per unit star formation rate in low-metallicity galaxies (12 + log (O / H) < 8, namely <20% solar) than in solar-metallicity galaxies. The metallicity dependence of the luminosity of HMXBs is small compared to that of the population size. Conclusions. Our results support the hypothesis that HMXBs are more numerous in low-metallicity galaxies, implying the need to investigate the feedback in the form of X-rays and energetic mass outflows of these high-energy sources during cosmic dawn
New trends in teacher’s education. Educational placement of the adopted child

In Italy, the number of adopted school-age children is increasing. According to the Commission of Intercountry Adoption (2013),\ud
3106 children were adopted, 47.5% of them are between 5 and 9 years old. The present action-research aims at exploring the\ud
spread of good approaches in schools in terms of welcoming of adopted children. For this purpose, 268 teachers of primary\ud
schools were involved in analyzing the social representation about adopted children and their family. The results show a\ud
simplified vision of the adoptive family, which is described as heroic family or, on the contrary, as a family with difficulty
What team members perceive as important to achieve high performance : an exploratory case study

Apresentado em "ProjMAN 2014 - International Conference on Project MANagement, Troia, Portugal, 15-17 Oct. 2014"In today’s demanding business environment companies must perform more efficiently. One of the most important ways to tackle this challenge is to enhance the human resources potential, through effective team management. High-performing teams have been studied for some years, with literature discussing their features from several perspectives as, for instance: leadership; teams as a whole; and team members. But, little has been written on managing these teams in the construction business. Based on a project involving 44 professionals and six teams, our exploratory case study presents preliminary results on perceived importante features for managing teams into high performance. Surprisingly, in opposition to their team members, managers did not perceive as most important some of the common features identified in the literature. Plus, some differences exist between teams’ perceptions. The reported differences may be correlated with the characteristics (e.g., social and demographic) of the professionals.Fundação para a Ciência e a Tecnologia (FCT
Centrality evolution of the charged-particle pseudorapidity density over a broad pseudorapidity range in Pb–Pb collisions at √sNN=2.76TeV

The centrality dependence of the charged-particle pseudorapidity density measured with ALICE in Pb–Pb collisions at √sNN=2.76TeVover a broad pseudorapidity range is presented. This Letter extends the previous results reported by ALICE to more peripheral collisions. No strong change of the overall shape of charged-particle pseudorapidity density distributions with centrality is observed, and when normalised to the number of participating nucleons in the collisions, the evolution over pseudorapidity with centrality is likewise small. The broad pseudorapidity range (−3.5 <η<5) allows precise estimates of the total number of produced charged particles which we find to range from 162 ±22(syst.)to 17170 ±770(syst.)in 80–90% and 0–5% central collisions, respectively. The total charged-particle multiplicity is seen to approximately scale with the number of participating nucleons in the collision. This suggests that hard contributions to the charged-particle multiplicity are limited. The results are compared to models which describe dNch/dηat mid-rapidity in the most central Pb–Pb collisions and it is found that these models do not capture all features of the distributions