pinecone/core-2020-05-10-deduplication huggingface dataset:
Characterization of Low-mass, Wide-separation Substellar Companions to
  Stars in Upper Scorpius: Near-infrared Photometry and Spectroscopy

We present new 0.9-2.45 $\mu$m spectroscopy ($R \sim 1000$), and $Y$, $J$,
$H$, $K_s$, $L^\prime$ photometry, obtained at Gemini North, of three low-mass
brown dwarf companions on wide orbits around young stars of the Upper Scorpius
OB association: HIP 78530 B, [PGZ2001] J161031.9-191305 B, and GSC 06214-00210
B. We use these data to assess the companions' spectral type, temperature,
surface gravity and mass, as well as the ability of the BT-Settl and
Drift-Phoenix atmosphere models to reproduce the spectral features of young
substellar objects. For completeness, we also analyze the archival spectroscopy
and photometry of the Upper Scorpius planetary mass companion 1RXS
J160929.1-210524 b. Based on a comparison with model spectra we find that the
companions, in the above order, have effective temperatures of 2700, 2500, 2300
and 1700 K. These temperatures are consistent with our inferred spectral types,
respectively M7 $\beta$, M9 $\gamma$, M9 $\gamma$, and L4 $\gamma$. From
bolometric luminosities estimated from atmosphere model spectra adjusted to our
photometry, and using evolution models at 5-10 Myr, we estimate masses of
21-25, 28-70, 14-17 and 7-12 $M_{\rm Jup}$, respectively. J1610-1913 B appears
significantly over-luminous for its inferred temperature, which explains its
higher mass estimate. Synthetic spectra based on the BT-Settl and Drift-Phoenix
atmosphere models generally offer a good fit to our observed spectra, although
our analysis has highlighted a few problems. For example, the best fits in the
individual near-infrared bands occur at different model temperatures. Also,
temperature estimates based on a comparison of the broadband magnitudes and
colors of the companions to synthetic magnitudes from the models are
systematically lower than the temperature estimates based on a comparison with
synthetic spectra.Comment: 16 pages, 8 figures, published in the Astrophysical Journa
On the Parallel and Perpendicular Propagating Motions Visible in Polar
  Plumes: An Incubator For (Fast) Solar Wind Acceleration?

We combine observations of the Coronal Multi-channel Polarimeter (CoMP) and
the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory
(SDO) to study the characteristic properties of (propagating) Alfvenic motions
and quasi-periodic intensity disturbances in polar plumes. This unique
combination of instruments highlights the physical richness of the processes
taking place at the base of the (fast) solar wind. The (parallel) intensity
perturbations with intensity enhancements around 1% have an apparent speed of
120 km/s (in both the 171A and 193A passbands) and a periodicity of 15 minutes,
while the (perpendicular) Alfvenic wave motions have a velocity amplitude of
0.5 km/s, a phase speed of 830 km/s, and a shorter period of 5 minutes on the
same structures. These observations illustrate a scenario where the excited
Alfvenic motions are propagating along an inhomogeneously loaded magnetic field
structure such that the combination could be a potential progenitor of the
magnetohydrodynamic turbulence required to accelerate the fast solar wind.Comment: 15 pages, 4 figures and 1 tabl
Tracing kinematic (mis)alignments in CALIFA merging galaxies : Stellar and ionized gas kinematic orientations at every merger stage

J.M.A. and V.W. acknowledge support from the European Research Council Starting Grant (SEDmorph; P.I. V. Wild).We present spatially resolved stellar and/or ionized gas kinematic properties for a sample of 103 interacting galaxies, tracing all merger stages: close companions, pairs with morphological signatures of interaction, and coalesced merger remnants. In order to distinguish kinematic properties caused by a merger event from those driven by internal processes, we compare our galaxies with a control sample of 80 non-interacting galaxies. We measure for both the stellar and the ionized gas components the major (projected) kinematic position angles (PAkin, approaching and receding) directly from the velocity distributions with no assumptions on the internal motions. This method also allow us to derive the deviations of the kinematic PAs from a straight line (δPAkin). We find that around half of the interacting objects show morpho-kinematic PA misalignments that cannot be found in the control sample. In particular, we observe those misalignments in galaxies with morphological signatures of interaction. On the other hand, the level of alignment between the approaching and receding sides for both samples is similar, with most of the  galaxies displaying small misalignments. Radial deviations of the kinematic PA orientation from a straight line in the stellar component measured by δPAkin are large for both samples. However, for a large fraction of interacting galaxies the ionized gas δPAkin is larger than the typical values derived from isolated galaxies (48%), indicating that this parameter is a good indicator to trace the impact of interaction and mergers in the internal motions of galaxies. By comparing the stellar and ionized gas kinematic PA, we find that 42% (28/66) of the interacting galaxies have misalignments larger than 16°, compared to 10% from the control sample. Our results show the impact of interactions in the motion of stellar and ionized gas as well as the wide the variety of their spatially resolved kinematic distributions. This study also provides a local Universe benchmark for kinematic studies in merging galaxies at high redshift.Publisher PDFPeer reviewe
The Sloan Digital Sky Survey Reverberation Mapping project: : no evidence for evolution in the M•-σ* Relation to z~1

Support for the work of Y.S. was provided by NASA through Hubble Fellowship grant number HST-HF-51314, awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS 5-26555. L.C.H. acknowledges support from the Chinese Academy of Sciences through grant No. XDB09030102 (Emergence of Cosmological Structures) from the Strategic Priority Research Program and from the National Natural Science Foundation of China through grant No. 11473002. W.N.B. acknowledges support from NSF grant AST-1108604. B.M.P. acknowledges support from the NSF through grant AST-1008882.We present host stellar velocity dispersion measurements for a sample of 88 broad-line quasars at 0.1 <z <1 (46 at z > 0.6) from the Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) project. High signal-to-noise ratio coadded spectra (average S/N ≈ 30 per 69 km s-1 pixel) from SDSS-RM allowed for the decomposition of the host and quasar spectra and for measurements of the host stellar velocity dispersions and black hole (BH) masses using the single-epoch (SE) virial method. The large sample size and dynamic range in luminosity (L5100 = 1043.2-44.7 ergs-1) lead to the first clear detection of a correlation between SE virial BH mass and host stellar velocity dispersion far beyond the local universe. However, the observed correlation is significantly flatter than the local relation, suggesting that there are selection biases in high-z luminosity-threshold quasar samples for such studies. Our uniform sample and analysis enable an investigation of the redshift evolution of the M-σ∗ relation relatively free of caveats by comparing different samples/analyses at disjoint redshifts. We do not observe evolution of the M-σ∗ relation in our sample up to z ∼ 1, but there is an indication that the relation flattens toward higher redshifts. Coupled with the increasing threshold luminosity with redshift in our sample, this again suggests that certain selection biases are at work, and simple simulations demonstrate that a constant M-σ∗ relation is favored to z ∼ 1. Our results highlight the scientific potential of deep coadded spectroscopy from quasar monitoring programs, and offer a new path to probe the co-evolution of BHs and galaxies at earlier times.Publisher PDFPeer reviewe
Search for light top squark pair production in final states with leptons and b⁻ jets with the ATLAS detector in sqrts=7 TeV proton-proton collisions

The results of a search for pair production of light top squarks are presented, using 4.7 fb(-1) of root s = 7 TeV proton-proton collisions collected with the ATLAS detector at the Large Hadron Collider. This search targets top squarks with masses similar to, or lighter than, the top quark mass. Final states containing exclusively one or two leptons (e, mu), large missing transverse momentum, light-flavour jets and b-jets are used to reconstruct the top squark pair system. Event-based mass scale variables are used to separate the signal from a large t (t) over bar background. No excess over the Standard Model expectations is found. The results are interpreted in the framework of the Minimal Supersymmetric Standard Model, assuming the top squark decays exclusively to a chargino and a b-quark, while requiring different mass relationships between the Supersymmetric particles in the decay chain. Light top squarks with masses between 123-167 GeV are excluded for neutralino masses around 55 GeV
The rare decay $H\to Z\gamma$ in perturbative QCD

The rare Higgs boson decay $H\to Z\gamma$ is forbidden at tree-level. In the Standard Model, it is loop-mediated through a $W$ boson or a heavy quark. We analytically compute the QCD correction to the heavy quark loop, confirming earlier purely numerical results, that were obtained for on-shell renormalization. The small quark mass expansion of the decay matrix element contains only single-logarithmic contributions at each perturbative order, which is in contrast to the double logarithms observed in $H\to \gamma\gamma$. We investigate the numerical interplay of bottom and top quark contributions, and the dependence of the result on the renormalization scheme
Baby de Sitter black holes and dS 3 /CFT 2

Unlike three-dimensional Einstein gravity, three-dimensional massive gravity admits asymptotically de Sitter space (dS) black hole solutions. These black holes present interesting features and provide us with toy models to study the dS/CFT correspondence. A remarkable property of these black holes is that they are always in thermal equilibrium with the cosmological horizon of the space that hosts them. This invites us to study the thermodynamics of these solutions within the context of dS/CFT. We study the asymptotic symmetry group of the theory and find that it indeed coincides with the local two-dimensional conformal algebra. The charge algebra associated to the asymptotic Killing vectors consists of two copies of the Virasoro algebra with non-vanishing central extension. We compute the mass and angular momentum of the dS black holes and verify that a naive application of Cardy’s formula exactly reproduces the entropy of both the black hole and the cosmological horizon. By adapting the holographic renormalization techniques to the case of dS space, we define the boundary stress tensor of the dual Euclidean conformal field theory
Fair scans of the seesaw. Consequences for predictions on LFV processes

22 páginas, 5 figuras.-- El Pdf es la versión pre-print: arXiv:1010.5751v1We give a straightforward procedure to scan the seesaw parameter-space, using the common “R-parametrization”, in a complete way. This includes a very simple rule to incorporate the perturbativity requirement as a condition for the entries of the R-matrix. As a relevant application, we show that the somewhat propagated belief that BR(μ → e, γ) in supersymmetric seesaw models depends strongly on the value of θ 13 is an “optical effect” produced by incomplete scans, and does not hold after a careful analytical and numerical study. When the complete scan is done, BR(μ → e, γ) gets very insensitive to θ 13. This holds even if the right-handed neutrino masses are kept constant or under control (as is required for succesful leptogenesis). In most cases the values of BR(μ → e, γ) are larger than the experimental upper bound. Including (unflavoured) leptogenesis does not introduce any further dependence on θ 13, although decreases the typical value of BR(μ → e, γ).This work has been partially supported by\ud
the MICINN, Spain, under contracts FPA-2007-60252 and FPA-2007-60323; Consolider-\ud
Ingenio PAU CSD2007-00060 and MULTIDARK CSD2009-00064. We thank as well the\ud
Generalitat Valenciana grants PROMETEO/2009/116 and PROMETEO/2008/069; the\ud
Comunidad de Madrid through Proyecto HEPHACOS ESP-1473 and the European Commission\ud
under contract PITN-GA-2009-237920. B. Zaldívar acknowledges the fi nancial\ud
support of a FPI (MICINN) grant, with reference BES-2008-004688.Peer reviewe
Study by DTA/TG of the formation of calcium aluminate obtained from an aluminium hazardous waste

A Spanish hazardous waste from tertiary aluminium\ud
industry was used as a raw material for the synthesis\ud
of calcium aluminate. An amorphous precursor was\ud
obtained by a hydrothermal method at different values of\ud
pH. The transformation of the precursor in a crystalline\ud
aluminate was followed by TG/DTA up to 1300  C. At\ud
temperatures between 719 and 744  C, the precursors\ud
evolve towards the formation of C12A7 which becomes CA\ud
at circa 1016  C. Mass spectrometry coupled to thermal\ud
analyser allowed the identification of the decomposition\ud
productsMEC for financing\ud
project CTM2005-01964 and the company Recuperaciones y Reciclajes\ud
Roman S.L. (Fuenlabrada, Madrid, Spain) for supplying the\ud
waste and Dr. M. I. Martı´n for the FRX analysis and Dr. I. Padilla for\ud
the technical assistance. Laura Delgado-Gonzalo is grateful to the\ud
CSIC (Spanish National Research Council) for an I3P contractPeer reviewe
Use of Policy Risk Assessment Results in Political Decision Making

The RAPID project established, during the first period, a thematic network of risk assessment experts, including relevant partners in the ten countries involved, the "Risk assessor database". The project devoted a specific activity, a single work package, to the dissemination and discussion of the methodology developed during" first two years of the project. National workshops were planned in each country to facilitate integrated knowledge translation activity, using a participatory approach to increase potential knowledge-users awareness on the RAPID project, and to engage them in using the RAPID guidance. Workshops were conceived to present case studies and the RAPID guidance to a targeted audience, to discuss and collect further insights, and integrate different perspectives in the final version of the policy evaluation methodology. However, national workshops also actively contributed to develop evidence based methodological guidance and increase its quality and relevance for potential users by bridging know-do gap between researchers and stakeholders; by involving decision makers and potential users in the knowledge creation process; by facilitating diverse stakeholder participation from governmental, academic and private sectors, carefully identified by national RAPID surveys as having direct expertise in the field of risk assessment. The cultural and administrative differences existing in the countries involved in RAPID guarantee the inclusion of a wide range of perspectives. Results of the national workshops helped to identify barriers and solutions for using the guidance, for adapting necessary changes to it and for communicating results to other potential users.
Predicting the initial rate of water absorption in clay bricks

The effect of product characteristics and processing conditions on the initial rate of water absorption of fifteen clay bricks was investigated and the influence of porosimetric parameters (amount, size and tortuosity of pores) as well as of phase composition (amount of calcium-silicates and amorphous phase) was established. The suction behaviour of bricks, which may be brought back to the models of Gummerson et al. (1981) and Hoffman and Niesel (1988), was also evaluated on the basis of both the product microstructure and the liquid physical properties. According to the model of Beltran et al. (1988), which reveled to be sufficiently reliable, the values of the capillary coefficient Ks were calculated and their correlation with the experimental ones has been provided. For a given liquid and in the same experimental conditions, the results indicate that varying in a controlled way the product microstructure (i.e. decreasing the pore size, increasing the pore tortuosity and/or controlling the amorphous/new formed phases ratio) should allow to design materials having a most suitable behaviour
Interactions between mannose-binding lectin and MASPs during complement activation by the lectin pathway.

The 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.Publisher Version1533
Cumulative effects of common genetic variants on risk of sudden cardiac death.

PMCID: PMC4476546Background\ud
\ud
Genome-wide association studies and candidate-gene based approaches have identified multiple common variants associated with increased risk of sudden cardiac death (SCD). However, the independent contribution of these individual loci to disease risk is modest.\ud
\ud
Objective\ud
\ud
To investigate the cumulative effects of genetic variants previously associated with SCD risk.\ud
\ud
Methods\ud
\ud
A total of 966 SCD cases from the Oregon-Sudden Unexpected Death Study and 1926 coronary artery disease controls from the Wellcome Trust Case–Control Consortium were investigated. We generated genetic risk scores (GRSs) for each trait composed of variants previously associated with SCD or with abnormalities in specific electrocardiographic traits such as QRS duration, QTc interval and heart rate. GRSs were calculated using a weighted approach based on the number of risk alleles weighted by the beta coefficients derived from the original studies. We also compared the highest and lowest quintiles for the GRS composed of SCD SNPs.\ud
\ud
Results\ud
\ud
Increased cumulative risk was observed for a GRS composed of 14 SCD-SNPs (OR = 1.17 [1.05–1.29], P = 0.002). The risk for SCD was 1.5 fold greater in the highest risk quintile when compared to the lowest risk quintile (OR = 1.46 [1.11–1.92]). We did not observe significant associations with SCD for SNPs that determine electrocardiographic traits.\ud
\ud
Conclusions\ud
\ud
A modest but significant effect on SCD risk was identified for a GRS composed of 14 previously associated SCD SNPs. While next generation sequencing methodology will continue to identify additional novel variants, these findings represent proof of concept for the additive effects of gene variants on SCD risk.Dr. Adriana Huertas-Vazquez is supported by the American Heart Association Scientist Development Grant (13SDG14640052) and Dr. Janet S. Sinsheimer by the NIH Grant GM05275. Dr. Chistopher P. Nelson and Dr. Nilesh J. Samani are funded by the British Heart Foundation and Dr. Nilesh J. Samani is a NIHR Senior Investigator. Dr. Sumeet S. Chugh is funded by grants from the US National Heart Lung and Blood Institute (R01HL105170 and R01HL122492), and holds the Pauline and Harold Price Endowed Chair in Cardiac Electrophysiology as the Cedars-Sinai Heart Institute, Los Angeles.Peer-reviewedPublisher Versio
The discourses of marketing and development : towards ‘critical transformative marketing research’.

In order to understand the connection between development, marketing and transformative consumer research (TCR), with its attendant interest in promoting human well-being, this article begins by charting the links between US ‘exceptionalism’, ‘Manifest Destiny’ and modernisation theory, demonstrating the confluence of US perspectives and experiences in articulations and understandings of the contributions of marketing practice and consumer research to society. Our narrative subsequently engages with the rise of social marketing (1960s-) and finally TCR (2006-). We move beyond calls for an appreciation of paradigm plurality to encourage TCR scholars to adopt a multiple paradigmatic approach as part of a three-pronged strategy that encompasses an initial ‘provisional moral agnosticism’. As part of this stance, we argue that scholars should value the insights provided by multiple paradigms, turning each paradigmatic lens sequentially on to the issue of the relationship between marketing, development and consumer well-being. After having scrutinised these issues using multiple perspectives, scholars can then decide whether to pursue TCR-led activism. The final strategy that we identify is termed ‘critical intolerance’
What is the best fixation target? The effect of target shape on stability of fixational eye movements.

People can direct their gaze at a visual target for extended periods of time. Yet, even during fixation the eyes make small, involuntary movements (e.g. tremor, drift, and microsaccades). This can be a problem during experiments that require stable fixation. The shape of a fixation target can be easily manipulated in the context of many experimental paradigms. Thus, from a purely methodological point of view, it would be good to know if there was a particular shape of a fixation target that minimizes involuntary eye movements during fixation, because this shape could then be used in experiments that require stable fixation. Based on this methodological motivation, the current experiments tested if the shape of a fixation target can be used to reduce eye movements during fixation. In two separate experiments subjects directed their gaze at a fixation target for 17 s on each trial. The shape of the fixation target varied from trial to trial and was drawn from a set of seven shapes, the use of which has been frequently reported in the literature. To determine stability of fixation we computed spatial dispersion and microsaccade rate. We found that only a target shape which looks like a combination of bulls eye and cross hair resulted in combined low dispersion and microsaccade rate. We recommend the combination of bulls eye and cross hair as fixation target shape for experiments that require stable fixation