pinecone/core-2020-05-10-deduplication huggingface dataset:
Durability testing of parabolic trough receivers - Overheating, thermal cycling, bellow fatigue and antifreflex-coating abrasion

This paper describes accelerated aging tests on parabolic trough receivers. Overheating of parabolic trough receivers about 80-100 K over the nominal operating temperature is applied for accelerated aging of the absorber coating. A lifetime prediction based on the Arrhenius parameters requires extensive testing; A reduced test with heating receivers to 478 °C for 1000 hours is applied on receivers for oil fluid in order to compare heat loss and optical efficiency before and after such accelerated aging. In a\ud
further test set, such receivers are thermally cycled between 200 °C and 478 °C for 100 times. A bellow fatigue test has been developed for testing of the bellows stability for the compression and expansion. Receivers are subjected to 20,000 cycles and rested for a 24 hour waiting period. The receiver heat loss during the bellow fatigue test shall not increase more than 30 %. \ud
Durability of the antireflex coating on the glass is tested with the Taber linear abrasor using the CS-10F rubber (¾”) and MIL 12397 Eraser (¼”). Both abrasive materials proved to be suited to obtain reproducible results, although the discussion is still ongoing on which material should be used. The larger diameter of the CS-10F rubber offers the advantage that transmittance measurement with the Lambda 950/1050 spectrophotometer can be performed without the necessity for multiple abrading stripes
The FgfrL1 receptor is required for development of slow muscle fibers.

FgfrL1, which interacts with Fgf ligands and heparin, is a member of the fibroblast growth factor receptor (Fgfr) family. FgfrL1-deficient mice show two significant alterations when compared to wildtype mice: They die at birth due to a malformed diaphragm and they lack metanephric kidneys. Utilizing gene arrays, qPCR and in situ hybridization we show here that the diaphragm of FgfrL1 knockout animals lacks any slow muscle fibers at E18.5 as indicated by the absence of slow fiber markers Myh7, Myl2 and Myl3. Similar lesions are also found in other skeletal muscles that contain a high proportion of slow fibers at birth, such as the extraocular muscles. In contrast to the slow fibers, fast fibers do not appear to be affected as shown by expression of fast fiber markers Myh3, Myh8, Myl1 and MylPF. At early developmental stages (E10.5, E15.5), FgfrL1-deficient animals express slow fiber genes at normal levels. The loss of slow fibers cannot be attributed to the lack of kidneys, since Wnt4 knockout mice, which also lack metanephric kidneys, show normal expression of Myh7, Myl2 and Myl3. Thus, FgfrL1 is specifically required for embryonic development of slow muscle fibers
Reconstruction of ice-sheet changes in the Antarctic Peninsula since the Last Glacial Maximum

This paper compiles and reviews marine and terrestrial data constraining the dimensions and configuration of the Antarctic Peninsula Ice Sheet (APIS) from the Last Glacial Maximum (LGM) through deglaciation to the present day. These data are used to reconstruct grounding-line retreat in 5 ka time-steps from 25 ka BP to present. Glacial landforms and subglacial tills on the eastern and western Antarctic Peninsula (AP) shelf indicate that the APIS was grounded to the outer shelf/shelf edge at the LGM and contained a series of fast-flowing ice streams that drained along cross-shelf bathymetric troughs. The ice sheet was grounded at the shelf edge until ∼20 cal ka BP. Chronological control on retreat is provided by radiocarbon dates on glacimarine sediments from the shelf troughs and on lacustrine and terrestrial organic remains, as well as cosmogenic nuclide dates on erratics and ice moulded bedrock. Retreat in the east was underway by about 18 cal ka BP. The earliest dates on recession in the west are from Bransfield Basin where recession was underway by 17.5 cal ka BP. Ice streams were active during deglaciation at least until the ice sheet had pulled back to the mid-shelf. The timing of initial retreat decreased progressively southwards along the western AP shelf; the large ice stream in Marguerite Trough may have remained grounded at the shelf edge until about 14 cal ka BP, although terrestrial cosmogenic nuclide ages indicate that thinning had commenced by 18 ka BP. Between 15 and 10 cal ka BP the APIS underwent significant recession along the western AP margin, although retreat between individual troughs was asynchronous. Ice in Marguerite Trough may have still been grounded on the mid-shelf at 10 cal ka BP. In the Larsen-A region the transition from grounded to floating ice was established by 10.7–10.6 cal ka BP. The APIS had retreated towards its present configuration in the western AP by the mid-Holocene but on the eastern peninsula may have approached its present configuration several thousand years earlier, by the start of the Holocene. Mid to late-Holocene retreat was diachronous with stillstands, re-advances and changes in ice-shelf configuration being recorded in most places. Subglacial topography exerted a major control on grounding-line retreat with grounding-zone wedges, and thus by inference slow-downs or stillstands in the retreat of the grounding line, occurring in some cases on reverse bed slopes
Search for a pseudoscalar boson decaying into a $Z$ boson and the 125 GeV Higgs boson in ℓ+ℓ−$b\bar{b}$ final states

Results are reported on a search for decays of a pseudoscalar A boson into a $Z$ boson and a light scalar h boson, where the Z boson decays into a pair of oppositely-charged electrons or muons, and the h boson decays into $b\bar{b}$. The search is based on data from proton–proton collisions at a center-of-mass energy $\sqrt{s}$=8 TeV collected with the CMS detector, corresponding to an integrated luminosity of 19.7 $fb^{−1}$ . The h boson is assumed to be the standard model-like Higgs boson with a mass of 125 GeV. With no evidence for signal, upper limits are obtained on the product of the production cross section and the branching fraction of the A boson in the Zh channel. Results are also interpreted in the context of two Higgs doublet models
Minimal unitary representation of 5 d superconformal algebra F(4) and AdS6/CFT5 higher spin (super)-algebras

We study the minimal unitary representation (minrep) of SO(5,2) , obtained by quantization of its geometric quasiconformal action, its deformations and supersymmetric extensions. The minrep of SO(5,2) describes a massless conformal scalar field in five dimensions and admits a unique “deformation” which describes a massless conformal spinor. Scalar and spinor minreps of SO(5,2) are the 5 d analogs of Dirac's singletons of SO(3,2) . We then construct the minimal unitary representation of the unique 5 d superconformal algebra F(4) with the even subalgebra SO(5,2)×SU(2) . The minrep of F(4) describes a massless conformal supermultiplet consisting of two scalar and one spinor fields. We then extend our results to the construction of higher spin AdS6/CFT5 (super)-algebras. The Joseph ideal of the minrep of SO(5,2) vanishes identically as operators and hence its enveloping algebra yields the AdS6/CFT5 bosonic higher spin algebra directly. The enveloping algebra of the spinor minrep defines a “deformed” higher spin algebra for which a deformed Joseph ideal vanishes identically as operators. These results are then extended to the construction of the unique higher spin AdS6/CFT5 superalgebra as the enveloping algebra of the minimal unitary realization of F(4) obtained by the quasiconformal methods
Supergravity one-loop corrections on AdS 7 and AdS 3 , higher spins and AdS/CFT

As was shown earlier, the one-loop correction in 10d supergravity on AdS5×S5 corresponds to the contributions to the vacuum energy and 4d boundary conformal anomaly which are minus the values for one N=4 Maxwell supermultiplet, thus reproducing the subleading term in the N2−1 coefficient in the dual SU(N) SYM theory. We perform similar one-loop computations in 11d supergravity on AdS7×S4 and 10d supergravity on AdS3×S3×T4 . In the AdS7 case we find that the corrections to the 6d conformal anomaly a-coefficient and the vacuum energy are again minus the ones for one (2,0) tensor multiplet, suggesting that the total a-anomaly coefficient for the dual (2,0) theory is 4N3−9/4N−7/4 and thus vanishes for N=1 . In the AdS3 case the one-loop correction to the vacuum energy or 2d central charge turns out to be equal to that of one free (4,4) scalar multiplet, i.e. is c=+6 . This reproduces the subleading term in the central charge c=6(Q1Q5+1) of the dual 2d CFT describing decoupling limit of D5–D1 system. We also present the expressions for the 6d a-anomaly coefficient and vacuum energy contributions of general-symmetry higher spin field in AdS7 and consider their application to tests of vectorial AdS/CFT with the boundary conformal 6d theory represented by free scalars, spinors or rank-2 antisymmetric tensors
Band Alignments in InxGa1–xP/GaAs Heterostructures Investigated by Pressure Experiments

6 páginas, 3 figuras.InxGa1—xP/GaAs (x = 0.541 and 0.427) heterostructures, grown by Atomic Layer Molecular Beam Epitaxy (ALMBE) on low temperature substrates, have been characterised by pressure-dependent and time-resolved photoluminescence experiments. The excitonic optical transitions and recombination dynamics are both influenced by the particular band alignments of these systems. The valence band offset has been found to have approximately the same absolute value (ΔEVB ≈ 380 meV), independent of the In content of the alloy in the barrier, whereas the conduction band offset varies appreciably depending on the alloy band gap. The huge valence band offset implies a strong asymmetry in the confinement of carriers, affecting the exciton recombination dynamics in the quantum wells.This\ud
work has been supported by the projects TIC96-1020-C02 and HA1997-0129 of the\ud
Ministry of Education of Spain.Peer reviewe
Molecular interactions between fullerene C-60 and ionic liquids

Structural and energetic aspects of solvation of fullerene C-60 in ionic liquids at room temperature were analyzed by using atomistic molecular dynamics simulations. Ethylammonium Nitrate (EAN) and 1-Butyl-3-Methylimidazolium Tetrafluoroborate (BMIMBF4) ionic liquids were conveniently chosen for presenting different polarities. Analysis of the spatial distribution of the ionic liquid revealed different patterns for the solvation of C-60. Energetics indicated that the presence of C-60 weakened the ionic interactions in solution compared to those in pure liquids. Our free energy calculations showed that there is an energy cost of 235 kJ mol(-1) for transferring fullerene C-60 from BMIMBF4 to EAN. (C) 2013 Elsevier B.V. All rights reserved.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210270 Santo Andre, SP, BrazilUniversidade Federal de São Paulo, Inst Ciencia & Tecnol, BR-12231280 Sao Jose Dos Campos, SP, BrazilUniversidade Federal de São Paulo, Inst Ciencia & Tecnol, BR-12231280 Sao Jose Dos Campos, SP, BrazilWeb of Scienc
Cysteine proteinase-1 and cut protein isoform control dendritic innervation of two distinct sensory fields by a single neuron.

Dendrites often exhibit structural changes in response to local inputs. Although mechanisms that pattern and maintain dendritic arbors are becoming clearer, processes regulating regrowth, during context-dependent plasticity or after injury, remain poorly understood. We found that a class of Drosophila sensory neurons, through complete pruning and regeneration, can elaborate two distinct dendritic trees, innervating independent sensory fields. An expression screen identified Cysteine proteinase-1 (Cp1) as a critical regulator of this process. Unlike known ecdysone effectors, Cp1-mutant ddaC neurons pruned larval dendrites normally but failed to regrow adult dendrites. Cp1 expression was upregulated/concentrated in the nucleus during metamorphosis, controlling production of a truncated Cut homeodomain transcription factor. This truncated Cut, but not the full-length protein, allowed Cp1-mutant ddaC neurons to regenerate higher-order adult dendrites. These results identify a molecular pathway needed for dendrite regrowth after pruning, which allows the same neuron to innervate distinct sensory fields
Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at root s=7 TeV using the ATLAS detector

A measurement of the top-antitop (t (t) over bar) charge asymmetry is presented using data corresponding to an integrated luminosity of 4.6 fb(-1) of LHC pp collisions at a centre-of-mass energy of 7 TeV collected by the ATLAS detector. Events with two charged leptons, at least two jets and large missing transverse momentum are selected. Two observables are studied: A(C)(ll) based on the identified charged leptons, and A(C)(t (t) over bar), based on the reconstructed t (t) over bar final state. The asymmetries are measured to be A(C)(ll) =0.024 +/- 0.015 (stat.) +/- 0.009 (syst.), A(C)(t (t) over bar) = 0.021 +/- 0.025 (stat.) +/- 0.017 (syst.). The measured values are in agreement with the Standard Model predictions.<p>ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1007/JHEP05(2015)061</p
Detailed Analysis of Wave Propagation Beneath the Campi Flegrei Caldera (Italy)

We investigate the complex propagation of seismic waves beneath the Campi Flegrei Caldera, Italy, using
multichannel recordings of artificial explosions. The sources consisted of air gun explosions shot in the Gulf of
Pozzuoli at offsets ranging between 3 and 7 km. The multichannel recording device was deployed in the
Solfatara crater and consisted of 10 vertical-component and 2 three-component short-period seismometers with a
maximum aperture of about 150m. The Zero-Lag-Correlation (ZLC) technique was adopted to estimate
horizontal slowness and backazimuth of coherent waves crossing the array. For sources located in the northern
sector of the Gulf, with maximum offset 5 km, ray parameters and backazimuths are in agreement with those
predicted for the 1-D velocity model used for routine locations. For sources at offsets larger than ~5 km, the
ZLC curves depict prominent maxima associated with a secondary phase propagating with a lower velocity than
the first-arrival P-wave. Using finite-difference synthetic seismograms generated for a 2-D realistic velocity
model, we explain these late arrivals in terms of a lateral velocity variation located at depths of about 1 km. Such
discontinuity would correspond to a positive Vp anomaly imaged by a recent 3-D tomographic study, and
interpreted as the submerged southern rim of Campi Flegrei caldera collapsed during the explosive eruption of
12 Ky b.p. The small spacing among adjacent shot points allowed simultaneous wavefield decomposition at the
source and receiver arrays. Using a modified version of the double-beam method, we retrieve the independent
variation of horizontal slowness at both the source and receiver regions. For both cases, we found azimuthal
deviations as large as 50° with respect to the great circle path. At the source region, these discrepancies may be
interpreted in terms of ray bending at the interface of the aforementioned positive anomaly. At the receiver array,
the observed anomalies may be attributed to either velocity variations marking the Solfatara crater rim, or to a
near-receiver, low-velocity body whose position would coincide with negative gravimetric anomalies and a high
Vp/Vs ratio region inferred by independent geophysical and seismological studies
Developmental changes in children's facial preferences.

Facial averageness, symmetry, health, and femininity are positively associated with adults' judgements of attractiveness, but little is known about the age at which preferences for individual facial traits develop. We investigated preferences for these facial traits and global attractiveness in 4- to 17-year-olds (N = 346). All age groups showed preferences for globally attractive faces. Preferences for averageness, symmetry, and health did not emerge until middle childhood and experienced apparent disruption or stasis around age 10- to 14-years; femininity was not preferred until early adulthood, and this preference was seen only in girls. Children's pubertal development was not clearly related to any facial preferences, but the results are consistent with the suggestion that early adrenal hormone release may play an activating role in mate preferences, while other constraints may delay further increases in preferences during later puberty
FlightGear as a tool for real time fault-injection, detection and self-repair.

The development of fault-detection and self-healing methods at both a hardware and software level in modern aircraft is an attractive prospect. However it is expensive to design and test these techniques using real aircraft. This paper appraises the viability of using FlightGear, an open- source Flight Simulator, as a test-bed for these approaches. The paper characterises the realism of various aspects of a model of the Airbus A380. Interfaces are established to abstract critical control system routines from FlightGear. These functions are replicated in both software and hardware environments. The control data can then be subjected to fault-injection and the control modules modified to enable fault-detection and self-healing. By applying cluster analysis techniques to training sets of data, a fault-detection, diagnosis and self-healing model is designed to address these injected faults. FlightGear is found to provide highly realistic simulation of aircraft systems and instrumentation. Hardware-in-the-loop testing shows promise as an area for future work. The proposed fault-detection model is found to provide 96% accuracy
Effects of psychological and psychosocial interventions on sport performance:a meta-analysis

Background: Psychologists are increasingly supporting the quest for performance enhancement in sport and there is a need to evaluate the evidence base underpinning their work. Objectives: To synthesize the most rigorous available research that has evaluated psychological, social, and psychosocial interventions with sport performers on variables relating to their athletic performance, and to address some of the perplexing issues in the sport psychology intervention literature (e.g., do interventions have a lasting effect on sport performance?). Methods: Randomized controlled trials were identified through electronic databases, hand-searching volumes of pertinent journals, scrutinizing reference lists of previous reviews, and contacting experts in the evaluation of interventions in this field. Included studies were required to evaluate the effects of psychological, social, or psychosocial interventions on sport performance in athletes when compared to a no-treatment or placebo-controlled treatment comparison group. A random effects meta-analysis calculating the standardized mean difference (Hedges’ g), meta-regressions, and trim and fill analyses were conducted. Data were analyzed at post-test and follow-up (ranging from 1 to 4 weeks after the intervention finished) assessments. Results: Psychological and psychosocial interventions were shown to enhance sport performance at post-test (k = 35, n = 997, Hedges’ g = 0.57, 95 % CI = 0.22–0.92) and follow-up assessments (k = 8, n = 189, Hedges’ g = 1.16, 95 % CI = 0.25–2.08); no social interventions were included or evaluated. Larger effects were found for psychosocial interventions and there was some evidence that effects were greatest in coach-delivered interventions and in samples with a greater proportion of male participants. Conclusions: Psychological and psychosocial interventions have a moderate positive effect on sport performance, and this effect may last at least a month following the end of the intervention. Future research would benefit from following guidelines for intervention reporting
The $\Delta(27)$ flavor 3-3-1 model with neutral leptons

We build the first 3-3-1 model based on the $\Delta (27)$ discrete group
symmetry, consistent with fermion masses and mixings. In the model under
consideration, the neutrino masses are generated from a combination of type-I
and type-II seesaw mechanisms mediated by three heavy right-handed Majorana
neutrinos and three $SU(3)_{L}$ scalar antisextets, respectively. Furthermore,
from the consistency of the leptonic mixing angles with their experimental
values, we obtain a non-vanishing leptonic Dirac CP violating phase of
$-\frac{\pi }{2}$. Our model features an effective Majorana neutrino mass
parameter of neutrinoless double beta decay, with values $m_{\beta \beta }=$ 10
and 18 meV for the normal and the inverted neutrino mass hierarchies,
respectively.Comment: 35 pages, 1 figure, discussion enlarged, references added. Journal
  version to appear in Nuclear Physics
Measurement of the transverse momentum spectra of weak vector bosons
  produced in proton-proton collisions at sqrt(s) = 8 TeV

The transverse momentum spectra of weak vector bosons are measured in the CMS
experiment at the LHC. The measurement uses a sample of proton-proton
collisions at sqrt(s) = 8 TeV, collected during a special low-luminosity
running that corresponds to an integrated luminosity of 18.4 +/- 0.5 inverse
picobarns. The production of W bosons is studied in both electron and muon
decay modes, while the production of Z bosons is studied using only the dimuon
decay channel. The ratios of W- to W+ and Z to W differential cross sections
are also measured. The measured differential cross sections and ratios are
compared with theoretical predictions up to next-to-next leading order in QCD.Comment: Replaced with the published version. Added the journal reference and
  DOI. All the figures and tables can be found at
  http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-14-012
Drug delivery into microneedle-porated nails from nanoparticle reservoirs.

Copyright © 2015. Published by Elsevier B.V.Author's post-print version.  The definitive version is available from the publisher via doi: 10.1016/j.jconrel.2015.10.026This study demonstrates the potential of polymeric nanoparticles as drug reservoirs for sustained topical drug delivery into microneedle-treated human nail. Laser scanning confocal microscopy was used to image the delivery of a fluorescent model compound from nanoparticles into the nail. A label-free imaging technique, stimulated Raman scattering microscopy, was applied, in conjunction with two-photon fluorescence imaging, to probe the disposition of nanoparticles and an associated lipophilic 'active' in a microneedle-porated nail. The results provide clear evidence that the nanoparticles function as immobile reservoirs, sequestered on the nail surface and in the microneedle-generated pores, from which the active payload can be released and diffuse laterally into the nail over an extended period of time