pinecone/core-2020-05-10-deduplication huggingface dataset:
Frobenius–Schur indicators and exponents of spherical categories

AbstractWe obtain two formulae for the higher Frobenius–Schur indicators: one for a spherical fusion category in terms of the twist of its center and the other one for a modular tensor category in terms of its twist. The first one is a categorical generalization of an analogous result by Kashina, Sommerhäuser, and Zhu for Hopf algebras, and the second one extends Bantay's 2nd indicator formula for a conformal field theory to higher degrees. These formulae imply the sequence of higher indicators of an object in these categories is periodic. We define the notion of Frobenius–Schur (FS-)exponent of a pivotal category to be the global period of all these sequences of higher indicators, and we prove that the FS-exponent of a spherical fusion category is equal to the order of the twist of its center. Consequently, the FS-exponent of a spherical fusion category is a multiple of its exponent, in the sense of Etingof, by a factor not greater than 2. As applications of these results, we prove that the exponent and the dimension of a semisimple quasi-Hopf algebra H have the same prime divisors, which answers two questions of Etingof and Gelaki affirmatively for quasi-Hopf algebras. Moreover, we prove that the FS-exponent of H divides dim(H)4. In addition, if H is a group-theoretic quasi-Hopf algebra, the FS-exponent of H divides dim(H)2, and this upper bound is shown to be tight
Viperatoxin-II: A novel viper venom protein as an effective bactericidal agent

AbstractInfections 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 100–3.125μg/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
Closed string tachyon potential and tt∗ equation

AbstractRecently Dabholkar and Vafa proposed that closed string tachyon potential for non-supersymmetric orbifold C/Z3 in terms of the solution of a tt∗ equation. We extend this result to C2/Zn for n=3,4,5. Interestingly, the tachyon potentials for n=3 and 4 are still given in terms of the solutions of Painlevé III type equation that appeared in the study of C1/Z3 with different boundary conditions. For C2/Z5 case, governing equations are of generalized Toda type. The potential is monotonically decreasing function of RG flow
Universal Racah matrices and adjoint knot polynomials: Arborescent knots

AbstractBy now it is well established that the quantum dimensions of descendants of the adjoint representation can be described in a universal form, independent of a particular family of simple Lie algebras. The Rosso–Jones formula then implies a universal description of the adjoint knot polynomials for torus knots, which in particular unifies the HOMFLY (SUN) and Kauffman (SON) polynomials. For E8 the adjoint representation is also fundamental. We suggest to extend the universality from the dimensions to the Racah matrices and this immediately produces a unified description of the adjoint knot polynomials for all arborescent (double-fat) knots, including twist, 2-bridge and pretzel. Technically we develop together the universality and the “eigenvalue conjecture”, which expresses the Racah and mixing matrices through the eigenvalues of the quantum R-matrix, and for dealing with the adjoint polynomials one has to extend it to the previously unknown 6×6 case. The adjoint polynomials do not distinguish between mutants and therefore are not very efficient in knot theory, however, universal polynomials in higher representations can probably be better in this respect
Case study, dynamic capabilities and upstream strategy: Supermajor EXP

AbstractThis case study explicates the dynamic capabilities framework and shows its relevance for the Global Exploration Division of a major IOC, Supermajor EXP. Three characteristics of dynamic capabilities are described: (1) how they differ from ordinary capabilities; (2) how they are identified, built and strengthened through managerial processes; and (3) how they function throughout the strategy development and execution process (sensing, seizing and transforming). Over a one-year period, EXP implemented key organizational and business model innovations to identify and begin to manage 10 dynamic capabilities. The case demonstrates how EXP identified and prioritized their dynamic capabilities through a strategic assessment, built, strengthened and evolved them through dialogical, collaborative and iterative processes that were informed by learning, sustained them by establishing new organizational structures, and reinforced them through cultural initiatives. Three of EXP's dynamic capabilities are described in detail: (1) accuracy in volume and risk predictions in investment proposals (the degree to which the subsurface reality is exposed when the well is drilled); (2) strategic deployment of talent into the ventures and projects with the highest economic value (right people, in the right seats, doing the right thing, with the right people, at the right time), and (3) effective management of the centralized–decentralized polarity
Changes in sputum composition during 15min of sputum induction in healthy subjects and patients with asthma and chronic obstructive pulmonary disease

SummaryIntroductionThe use of sputum induction by inhalation of hypertonic saline to study the cellular and biochemical composition of the airways allows noninvasive sampling of the airways content and identification of markers of airways inflammation.ObjectiveThe present study aimed to identify possible changes in the cellular composition of induced sputum between samples obtained sequentially (three periods of 5min each) during one sputum induction. Moreover, difference between these samples and the mixed one (mixture of samples obtained after 5, 10 and 15min of induction) was investigated.MethodsForty-six subjects (10 healthy volunteers, 12 patients with chronic obstructive pulmonary disease (COPD) and 24 patients with asthma) (mean age 53.0±14.0yr, forced expiratory volume in one second (FEV1) 71.8±19.0% pred) produced sputum after three consecutive 5min periods of hypertonic (4.5%) saline inhalation. Stained cytospins from the three periods separately and from the mixed sample were produced and analyzed.ResultsThe mean percentage of neutrophils, eosinophils, lymphocytes and epithelial cells did not change significantly in samples obtained consecutively after 5, 10 and 15min of the induction procedure. There was no significant difference in the cellular composition of samples obtained after 5, 10 and 15min of induction and the cellular composition of the mixed sample (P=0.06).ConclusionThe separate analysis of induced sputum from three consecutive sampling and the mixed sample did not demonstrate significant changes in their cellular composition. Fifteen minutes induction procedure with the fixed concentration of hypertonic saline and processing of the mixed sample can be recommended for clinical settings and clinical trials
Psychosexual Development in Men with Congenital Hypogonadotropic Hypogonadism on Long-Term Treatment: A Mixed Methods Study

AbstractIntroductionCongenital hypogonadotropic hypogonadism (CHH) is a rare, genetic, reproductive endocrine disorder characterized by absent puberty and infertility. Limited information is available on the psychosocial impact of CHH and psychosexual development in these patients.AimThe aim of this study was to determine the impact of CHH on psychosexual development in men on long-term treatment.MethodsA sequential mixed methods explanatory design was used. First, an online survey (quantitative) was used to quantify the frequency of psychosexual problems among CHH men. Second, patient focus groups (qualitative) were conducted to explore survey findings in detail and develop a working model to guide potential nursing and interdisciplinary interventions.Main Outcome MeasuresPatient characteristics, frequency of body shame, difficulty with intimate relationships, and never having been sexually active were assessed. Additionally, we collected subjective patient-reported outcomes regarding the impact of CHH on psychological/emotional well-being, intimate relationships, and sexual activity.ResultsA total of 101 CHH men on long-term treatment (>1 year) were included for the analysis of the online survey (mean age 37 ± 11 years, range 19–66, median 36). Half (52/101, 51%) of the men had been seen at a specialized academic center and 37/101 (37%) reported having had fertility-inducing treatment. A high percentage of CHH men experience psychosexual problems including difficulty with intimate relationships (70%) and body image concerns/body shame (94/101, 93%), and the percentage of men never having been sexually active is five times the rate in a reference group (26% vs. 5.4%, P < 0.001). Focus groups revealed persisting body shame and low self-esteem despite long-term treatment that has lasting impact on psychosexual functioning.ConclusionsCHH men frequently experience psychosexual problems that pose barriers to intimate relationships and initiating sexual activity. These lingering effects cause significant distress and are not ameliorated by long-term treatment. Psychosexual assessment in CHH men with appropriate psychological support and treatment should be warranted in these patients. Dwyer AA, Quinton R, Pitteloud N, and Morin D. Psychosexual development in men with congenital hypogonadotropic hypogonadism on long-term treatment: A mixed methods study. Sex Med 2015;3:32–41
Constraining hypernuclear density functional with Λ-hypernuclei and compact stars

AbstractWe present a simultaneous calculation of heavy single-Λ hypernuclei and compact stars containing hypernuclear core within a relativistic density functional theory based on a Lagrangian which includes the hyperon octet and lightest isoscalar-isovector mesons which couple to baryons with density-dependent couplings. The corresponding density functional allows for SU(6) symmetry breaking and mixing in the isoscalar sector, whereby the departures in the σ–Λ and σ–Σ couplings away from their values implied by the SU(3) symmetric model are used to adjust the theory to the laboratory and astronomical data. We fix σ–Λ coupling using the data on the single-Λ hypernuclei and derive an upper bound on the σ–Σ from the requirement that the lower bound on the maximum mass of a compact star is 2M⊙
Higgs–dilaton(radion) system confronting the LHC Higgs data

AbstractWe consider the Higgs–dilaton(radion) system using the trace of energy–momentum tensor (Tμμ) with the full Standard Model (SM) gauge symmetry GSM≡SU(3)c×SU(2)L×U(1)Y, and find out that the resulting phenomenology for the Higgs–dilaton(radion) system is distinctly different from the earlier studies based on the Tμμ with the unbroken subgroup HSM≡SU(3)c×U(1)em of GSM. After electroweak symmetry breaking (EWSB), the SM Higgs boson and dilaton(radion) will mix with each other, and there appear two Higgs-like scalar bosons and the Higgs–dilaton mixing changes the scalar phenomenology in interesting ways. The signal strengths for the gg-initiated channels could be modified significantly compared with the SM predictions due to the QCD scale anomaly and the Higgs–dilaton(radion) mixing, whereas anomaly contributions are almost negligible for other channels. We also discuss the self-couplings and the signal strengths of the 126 GeV scalar boson in various channels and possible constraints from the extra light/heavy scalar boson. The Higgs–dilaton(radion) system considered in this work has a number of distinctive features that could be tested by the upcoming LHC running and at the ILC
The internal disruption as hard MHD limit of 1/2 sawtooth like activity
  in Large Helical Device

LHD inward-shifted configurations are unstable to resistive MHD
pressure-gradient-driven modes. Sawtooth like activity was observed during LHD
operation. The main drivers are the unstable modes $1/2$ and $1/3$ in the
middle and inner plasma region which limit the plasma confinement efficiency of
LHD advanced operation scenarios. The aim of the present research is to study
the hard MHD limit of $1/2$ sawtooth like activity, not observed yet in LHD
operation, and to predict its effects on the device performance. Previous
investigations pointed out this system relaxation can be an internal disruption
[J. Varela et al, internal disruptions and sawtooth like activity in LHD, 38 th
EPS Conference on Plasma Physics, 2011, P5.077]. In the present work, we
simulate an internal disruption; we study the equilibria properties before and
after the disruptive process, its effects on the plasma confinement efficiency
during each disruptive phase, the relation between the $n/m = 1/2$ hard MHD
events and the soft MHD events and how to avoid or reduce their adverse
effects. The simulation conclusions point out that the large stochastic region
in the middle plasma strongly deforms and tears the flux surfaces when the
pressure gradient increases above the hard MHD limit. If the instability
reaches the inner plasma, the iota profiles will be perturbed near the plasma
core and three magnetic islands can appear near the magnetic axis. If the
instability is strong enough to link the stochastic regions in the middle
plasma (around the half minor radius $\rho$) and the plasma core ($\rho <
0.25$), an internal disruption is driven
X-Shooter study of accretion in Chamaeleon I: II. A steeper increase of
  accretion with stellar mass for very low mass stars?

The dependence of the mass accretion rate on the stellar properties is a key
constraint for star formation and disk evolution studies. Here we present a
study of a sample of stars in the Chamaeleon I star forming region carried out
using the VLT/X-Shooter spectrograph. The sample is nearly complete down to
M~0.1Msun for the young stars still harboring a disk in this region. We derive
the stellar and accretion parameters using a self-consistent method to fit the
broad-band flux-calibrated medium resolution spectrum. The correlation between
the accretion luminosity to the stellar luminosity, and of the mass accretion
rate to the stellar mass in the logarithmic plane yields slopes of 1.9 and 2.3,
respectively. These slopes and the accretion rates are consistent with previous
results in various star forming regions and with different theoretical
frameworks. However, we find that a broken power-law fit, with a steeper slope
for stellar luminosity smaller than ~0.45 Lsun and for stellar masses smaller
than ~ 0.3 Msun, is slightly preferred according to different statistical
tests, but the single power-law model is not excluded. The steeper relation for
lower mass stars can be interpreted as a faster evolution in the past for
accretion in disks around these objects, or as different accretion regimes in
different stellar mass ranges. Finally, we find two regions on the mass
accretion versus stellar mass plane empty of objects. One at high mass
accretion rates and low stellar masses, which is related to the steeper
dependence of the two parameters we derived. The second one is just above the
observational limits imposed by chromospheric emission. This empty region is
located at M~0.3-0.4Msun, typical masses where photoevaporation is known to be
effective, and at mass accretion rates ~10^-10 Msun/yr, a value compatible with
the one expected for photoevaporation to rapidly dissipate the inner disk.Comment: Accepted for publication on Astronomy & Astrophysics. Abstract
  shortened for arxiv constraints. Revised version after language editin
The chemistry of episodic accretion in embedded objects. 2D radiation
  thermo-chemical models of the post-burst phase

Episodic accretion is an important process in the evolution of young stars
and their environment. The observed strong luminosity bursts of young stellar
objects likely have a long lasting impact on the chemical evolution of the disk
and envelope structure. We want to investigate observational signatures of the
chemical evolution in the post-burst phase for embedded sources. With such
signatures it is possible to identify targets that experienced a recent
luminosity burst. We present a new model for episodic accretion chemistry based
on the 2D, radiation thermo-chemical disk code ProDiMo. We have extended
ProDiMo with a proper treatment for envelope structures. For a representative
Class I model, we calculated the chemical abundances in the post-burst phase
and produced synthetic observables like intensity maps and radial profiles.
During a burst many chemical species, like CO, sublimate from the dust
surfaces. As the burst ends they freeze out again (post-burst phase). This
freeze-out happens from inside-out due to the radial density gradient in the
disk and envelope structure. This inside-out freeze-out produces clear
observational signatures in spectral line emission, like rings and distinct
features in the slope of radial intensity profiles. We fitted synthetic C18O
J=2-1 observations with single and two component fits and find that post-burst
images are much better matched by the latter. Comparing the quality of such
fits allows identification of post-burst targets in a model-independent way.
Our models confirm that it is possible to identify post-burst objects from
spatially resolved CO observations. However, to derive proper statistics, like
frequencies of bursts, from observations it is important to consider aspects
like the inclination and structure of the target and also dust properties as
those have a significant impact on the freeze-out timescale.Comment: 17 pages, 6 figures, 2 tables. Accepted for publication in A&
Measurements of top quark spin observables in tt¯ events using dilepton final states in s√=8 TeV pp collisions with the ATLAS detector

Measurements of top quark spin observables in tt¯ events are presented based on 20.2 fb−1 of s√=8 TeV proton-proton collisions recorded with the ATLAS detector at the LHC. The analysis is performed in the dilepton final state, characterised by the presence of two isolated leptons (electrons or muons). There are 15 observables, each sensitive to a different coefficient of the spin density matrix of tt¯ production, which are measured independently. Ten of these observables are measured for the first time. All of them are corrected for detector resolution and acceptance effects back to the parton and stable-particle levels. The measured values of the observables at parton level are compared to Standard Model predictions at next-to-leading order in QCD. The corrected distributions at stable-particle level are presented and the means of the distributions are compared to Monte Carlo predictions. No significant deviation from the Standard Model is observed for any observable
Study of Z production in PbPb and pp collisions at root s(NN)=2.76 TeV in the dimuon and dielectron decay channels

The production of Z bosons is studied in the dimuon and dielectron decay channels in PbPb and pp collisions at (Formula presented.) TeV, using data collected by the CMS experiment at the LHC. The PbPb data sample corresponds to an integrated luminosity of about 166 μb−1, while the pp data sample collected in 2013 at the same nucleon-nucleon centre-of-mass energy has an integrated luminosity of 5.4 pb−1. The Z boson yield is measured as a function of rapidity, transverse momentum, and collision centrality. The ratio of PbPb to pp yields, scaled by the number of inelastic nucleon-nucleon collisions, is found to be 1.06 ± 0.05 (stat) ± 0.08 (syst) in the dimuon channel and 1.02 ± 0.08 (stat) ± 0.15 (syst) in the dielectron channel, for centrality-integrated Z boson production. This binary collision scaling is seen to hold in the entire kinematic region studied, as expected for a colourless probe that is unaffected by the hot and dense QCD medium produced in heavy ion collisions. © 2015, The Author(s).The Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authorit
On the Bayesian calibration of expensive computer models with input
  dependent parameters

Computer models, aiming at simulating a complex real system, are often
calibrated in the light of data to improve performance. Standard calibration
methods assume that the optimal values of calibration parameters are invariant
to the model inputs. In several real world applications where models involve
complex parametrizations whose optimal values depend on the model inputs, such
an assumption can be too restrictive and may lead to misleading results. We
propose a fully Bayesian methodology that produces input dependent optimal
values for the calibration parameters, as well as it characterizes the
associated uncertainties via posterior distributions. Central to methodology is
the idea of formulating the calibration parameter as a step function whose
uncertain structure is modeled properly via a binary treed process. Our method
is particularly suitable to address problems where the computer model requires
the selection of a sub-model from a set of competing ones, but the choice of
the `best' sub-model may change with the input values. The method produces a
selection probability for each sub-model given the input. We propose suitable
reversible jump operations to facilitate the challenging computations. We
assess the performance of our method against benchmark examples, and use it to
analyze a real world application with a large-scale climate model