cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Open Science in Horizon Europe: how and (mostly) why
Creators: name: Giglia, Elena
Publisher: name: Zenodo
Year: 2022
Subjects: Horizon Europe, Open Science, FAIR data, Data Management Plans

description: Webinar held on Nov. 7 for the CIVICA consortium (Social sciences universities) - What's wrong with the current scholarly communication system (or, why do we need Open Science?) - Open Science definition and tools - Focus on research evaluation, Open Access, FAIR data, Open Science in Horizon Europe
Additional file 3: of Inhibition of ERK1/2 in cancer-associated pancreatic stellate cells suppresses cancer–stromal interaction and metastasis
Creators: name: Zilong Yan
name: Kenoki Ohuchida
name: Fei, Shuang
name: Zheng, Biao
name: Weiyu Guan
name: Haimin Feng
name: Kibe, Shin
name: Ando, Yohei
name: Koikawa, Kazuhiro
name: Abe, Toshiya
name: Iwamoto, Chika
name: Shindo, Koji
name: Moriyama, Taiki
name: Nakata, Kohei
name: Miyasaka, Yoshihiro
name: Ohtsuka, Takao
name: Mizumoto, Kazuhiro
name: Hashizume, Makoto
name: Nakamura, Masafumi
Publisher: name: Figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Figure S3. Dual-treatment with SCH772984 and CQ decreased cell viability and induced PSC2 senescence. (A) Microphotograph of PSC2 cells after treatment with indicated agents. Scale bars = 100 μm. (B) Viability of PSCs after treatment with indicated agents. (C) qRT-PCR showed mRNA expression of α-SMA, Collagen Type I, p15 and p16. *P
H63D: The Other Mutation (2021 Version)
Creators: name: Smith, Lucas
name: Seideman, David
name: Diamandis, Carolina
Publisher: name: Zenodo
Year: 2021
Subjects: H63D
the other mutation
HFE gene
hemochromatosis
H63D syndrome
genetic
defect
homozygous mutation
mutation

description: In 2010, the Iron Disorders Institute published the first seminal article on the underestimated risk of a homozygous HFE gene H63D mutation. This short but important article has lost none of its relevance. Since it is in danger of being forgotten and disappearing from more and more websites, we are publishing a reprint of the still seminal article, expanded with some new findings.
Selective buckling via states of self-stress in topological metamaterials
Creators: name: Paulose, Jayson
name: Meeussen, Anne S.
name: Vitelli, Vincenzo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: States of self-stress, tensions and compressions of structural elements that result in zero net forces, play an important role in determining the load-bearing ability of structures ranging from bridges to metamaterials with tunable mechanical properties. We exploit a class of recently introduced states of self-stress analogous to topological quantum states to sculpt localized buckling regions in the interior of periodic cellular metamaterials. Although the topological states of self stress arise in the linear response of an idealized mechanical frame of harmonic springs connected by freely-hinged joints, they leave a distinct signature in the nonlinear buckling behaviour of a cellular material built out of elastic beams with rigid joints. The salient feature of these localized buckling regions is that they are indistinguishable from their surroundings as far as material parameters or connectivity of their constituent elements are concerned. Furthermore, they are robust against a wide range of structural perturbations. We demonstrate the effectiveness of this topological design through analytical and numerical calculations as well as buckling experiments performed on two- and three-dimensional metamaterials built out of stacked kagome lattices.
description: Published version: edits to text, notation; added supplementary figure and discussion. 14 pages, 9 figures, see http://www.lorentz.leidenuniv.nl/~paulose/topological-buckling/ for accompanying videos
Stellar and planetary properties of K2 campaign 1 candidates and validation of 17 planets, including a planet receiving Earth-like insolation
Creators: name: Bieryla, A.
name: Morton, T.D.
name: Foreman-Mackey, D.
name: Mann, A.W.
name: Bowler, B.P.
name: Hogg, D.W.
name: Johnson, J.A.
name: Latham, D.W.
name: Montet, B.T.
Publisher: name: Institute of Physics Publishing
Year: 2015

description: The extended Kepler mission, K2, is now providing photometry of new fields every three months in a search for transiting planets. In a recent study, Foreman-Mackey and collaborators presented a list of 36 planet candidates orbiting 31 stars in K2 Campaign 1. In this contribution, we present stellar and planetary properties for all systems. We combine ground-based seeing-limited survey data and adaptive optics imaging with an automated transit analysis scheme to validate 21 candidates as planets, 17 for the first time, and identify 6 candidates as likely false positives. Of particular interest is K2-18 (EPIC 201912552), a bright (K = 8.9) M2.8 dwarf hosting a 2.23 ï¿½ 0.25 planet with K and an orbital period of 33 days. We also present two new open-source software packages which enable this analysis. The first, isochrones, is a flexible tool for fitting theoretical stellar models to observational data to determine stellar properties using a nested sampling scheme to capture the multimodal nature of the posterior distributions of the physical parameters of stars that may plausibly be evolved. The second is vespa, a new general-purpose procedure to calculate false positive probabilities and statistically validate transiting exoplanets.
Pure kinetic inductance coupling for cQED with flux qubits
Creators: name: Geisert, Simon
name: Ihssen, Soeren
name: Winkel, Patrick
name: Spiecker, Martin
name: Fechant, Mathieu
name: Paluch, Patrick
name: Gosling, Nicolas
name: Zapata, Nicolas
name: Günzler, Simon
name: Rieger, Dennis
name: Bénâtre, Denis
name: Reisinger, Thomas
name: Wernsdorfer, Wolfgang
name: Pop, Ioan M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate a qubit-readout architecture where the dispersive coupling is entirely mediated by a kinetic inductance. This allows us to engineer the dispersive shift of the readout resonator independent of the qubit and resonator capacitances. We validate the pure kinetic coupling concept and demonstrate various generalized flux qubit regimes from plasmon to fluxon, with dispersive shifts ranging from 60 kHz to 2 MHz at the half-flux quantum sweet spot. We achieve readout performances comparable to conventional architectures with quantum state preparation fidelities of 99.7 % and 92.7 % for the ground and excited states, respectively, and below 0.1 % leakage to non-computational states.
description: 20 pages, 10 figures
THE MASS-RADIUS RELATION OF YOUNG STARS. I. USCO 5, AN M4.5 ECLIPSING BINARY IN UPPER SCORPIUS OBSERVED BY K2
Creators: name: Kraus, A.L.
name: Rizzuto, A.C.
name: Mann, A.W.
name: Ireland, M.J.
name: Covey, K.R.
name: Cody, A.M.
Publisher: name: Institute of Physics Publishing
Year: 2015

description: We present the discovery that UScoCTIO 5, a known spectroscopic binary in the Upper Scorpius star-forming region (P = 34 days, Mtot sin(i) = 0.64 M⊙), is an eclipsing system with both primary and secondary eclipses apparent in K2 light curves obtained during Campaign 2. We have simultaneously fit the eclipse profiles from the K2 light curves and the existing RV data to demonstrate that UScoCTIO 5 consists of a pair of nearly identical M4.5 stars with MA = 0.329 ± 0.002 M⊙, RA = 0.834 ± 0.006 R⊙, MB = 0.317 ± 0.002 M⊙, and RB = 0.810 ± 0.006 R⊙. The radii are broadly consistent with pre-main-sequence ages predicted by stellar evolutionary models, but none agree to within the uncertainties. All models predict systematically incorrect masses at the 25%-50% level for the HR diagram position of these mid-M dwarfs, suggesting significant modifications to mass-dependent outcomes of star and planet formation. The form of the discrepancy for most model sets is not that they predict luminosities that are too low, but rather that they predict temperatures that are too high, suggesting that the models do not fully encompass the physics of energy transport (via convection and/or missing opacities) and/or a miscalibration of the SpT-Teff scale. The simplest modification to the models (changing Teff to match observations) would yield an older age for this system, in line with the recently proposed older age of Upper Scorpius (τ ∼ 11 Myr).
Statistical methods for fibre-optic sensor networks
Creators: name: Jammayrac, Amaury
Publisher: name: Imperial College London
Year: 2022

description: Given the decrease of sensor cost and the rise of computation power, more structures will be built with an integrated network of sensors to track and monitor their short- and long-term state. The statistical research potential around this type of data is immense and this thesis is a contribution. This thesis is based on a speci c type of bre-optic sensor network installed on a bridge. The sensors extract changes of strain at di erent spatial locations on the bridge and have a covariance structure which has speci c properties. The main one is a latent structure which appears when the changes of strains are projected to a speci c space of lower dimension. This latent structure is rarely described in the literature, and this thesis provides a theoretical framework to describe and reproduce it. This theoretical framework relies on circulant matrices, and develops the concept of Lagged Cosines matrix, which uses cosine waves with similar amplitude and frequency, and di erent phases. The Lagged Cosines matrix is then incorporated as the deterministic component of a newly de ned stochastic model, called the Lagged Cosines model. This model is tted to the data from the sensor network. Based on the results of this t, two main features are inferred from the sensor network and from the response of the bridge to a train crossing it. First, a deep periodic structure is discovered and analysed in the sensor network when the bridge is \at rest". Second, when a train crosses the bridge, the Lagged Cosines model extracts what is de ned as a collective response of the bridge which characterises the changes of strain at di erent spatial locations, which leads to a method of anomaly detection.
SnowApp-ilmastopalvelu talvimatkailukeskuksille
Creators: name: Mettiäinen, Ilona
name: Coath, Martin
name: Grist, Hannah
name: Harvey, Will
Publisher: name: Zenodo
Year: 2020
Subjects: ilmastopalvelu
talvimatkailu
kestävä matkailu
ilmastonmuutokseen sopeutuminen

description: Esite talvimatkailukeskuksille suunnitellusta ilmastopalvelusta, joka on kehitetty Blue-Action: Arctic Impact on Weather and Climate (EU Horizon 2020) -hankkeen WP5 CS1:ssa. Suomenkielinen versio.
How to constrain your m dwarf: Measuring effective temperature, bolometric luminosity, mass, and radius
Creators: name: Feiden, G.A.
name: Braun, K.V.
name: Mann, A.W.
name: Boyajian, T.
name: Gaidos, E.
Publisher: name: Institute of Physics Publishing
Year: 2015

description: Precise and accurate parameters for late-type (late K and M) dwarf stars are important for characterization of any orbiting planets, but such determinations have been hampered by these stars' complex spectra and dissimilarity to the Sun. We exploit an empirically calibrated method to estimate spectroscopic effective temperature (Teff) and the Stefan-Boltzmann law to determine radii of 183 nearby K7-M7 single stars with a precision of 2%-5%. Our improved stellar parameters enable us to develop model-independent relations between Teff or absolute magnitude and radius, as well as between color and Teff. The derived Teff radiusrelation depends strongly on [Fe/H], as predicted by theory. The relation between absolute KS magnitude and radius can predict radii accurate to 3%. We derive bolometric corrections to the and Gaia passbands as a function of color, accurate to 1%-3%. We confront the reliability of predictions from Dartmouth stellar evolution models using a Markov chain Monte Carlo to find the values of unobservable model parameters (mass, age) that best reproduce the observed effective temperature and bolometric flux while satisfying constraints on distance and metallicity as Bayesian priors. With the inferred masses we derive a semi-empirical mass-absolute magnitude relation with a scatter of 2% in mass. The best-agreement models overpredict stellar Teff values by an average of 2.2% and underpredict stellar radii by 4.6%, similar to differences with values from low-mass eclipsing binaries. These differences are not correlated with metallicity, mass, or indicators of activity, suggesting issues with the underlying model assumptions, e.g., opacities or convective mixing length.
Correlation functions of just renormalizable tensorial group field theory: The melonic approximation
Creators: name: Samary, Dine Ousmane
name: Pérez-Sánchez, Carlos I.
name: Vignes-Tourneret, Fabien
name: Wulkenhaar, Raimar
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The $D$-colored version of tensor models has been shown to admit a large $N$-limit expansion. The leading contributions result from so-called melonic graphs which are dual to the $D$-sphere. This is a note about the Schwinger-Dyson equations of the tensorial $φ^{4}_{5}$-model (with propagator $1/{\bf p}^{2}$) and their melonic approximation. We derive the master equations for two- and four-point correlation functions and discuss their solution.
description: 20 pages
Additional file 4: of Inhibition of ERK1/2 in cancer-associated pancreatic stellate cells suppresses cancer–stromal interaction and metastasis
Creators: name: Zilong Yan
name: Kenoki Ohuchida
name: Fei, Shuang
name: Zheng, Biao
name: Weiyu Guan
name: Haimin Feng
name: Kibe, Shin
name: Ando, Yohei
name: Koikawa, Kazuhiro
name: Abe, Toshiya
name: Iwamoto, Chika
name: Shindo, Koji
name: Moriyama, Taiki
name: Nakata, Kohei
name: Miyasaka, Yoshihiro
name: Ohtsuka, Takao
name: Mizumoto, Kazuhiro
name: Hashizume, Makoto
name: Nakamura, Masafumi
Publisher: name: Figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Figure S4. Pancreatic tumor organoid recapitulates p-ERK1/2 expression of PDAC in vitro and in vivo. (A) Western blot of ERK1/2 and p-ERK1/2 shows increasing p-ERK1/2 level in KPC cancer organoid compared with cancer cells. (B) Scheme of xenograft experiment. Mice were randomly divided into two groups and 5 × 104 cancer cells or organoids were intrasplenic implanted with 5 × 104 PSCs. After 2 weeks, liver metastases were evaluated. (C) H&E staining and immunohistochemical staining show metastatic nodules (D), and expression of α-SMA (E) and p-ERK1/2 (F). (G, H) Combination of indicated dose of SCH772984 improved chemosensitivity of gemcitabine of AsPC-1 and SUIT-2 cells in the PSC-conditioned medium. Columns, mean fold changes of three experiments done in triplicate. (PDF 262364 kb)
Spin-dependent Seebeck effect and spin caloritronics in magnetic graphene
Creators: name: Rameshti, Babak Zare
name: Moghaddam, Ali G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the spin-dependent thermoelectric effects in magnetic graphene in both diffusive and ballistic regimes. Employing the Boltzmann and Landauer formalisms we calculate the spin and charge Seebeck coefficients (thermopower) in magnetic graphene varying the spin splitting, temperature, and doping of the junction. It is found that while in normal graphene the temperature gradient drive a charge current, in the case of magnetic graphene a significant spin current is also established. In particular we show that in the undoped magnetic graphene in which different spin carriers belong to conduction and valence bands, a pure spin current is driven by the temperature gradient. In addition it is revealed that profound thermoelectric effects can be achieved at intermediate easily accessible temperatures when the thermal energy is comparable with Fermi energy $k_BT\lesssim μ$. By further investigation of the spin-dependent Seebeck effect and a significantly large figure of merit for spin thermopower $\mathcal{Z}_{\rm sp}T$, we suggest magnetic graphene as a promising material for spin-caloritronics studies and applications.
description: 9 pages, 8 figures
Entwicklung und Evaluation eines Mess- und Auswerteverfahrens zur Bestimmung einer Sanddünenverformung unter Wind- und Welleneinfluss
Creators: name: Koldrack, Nils
Publisher: name: Universität Rostock
Year: 2020
Subjects: subject: 620 Engineering & allied operations
subject: 624 Structural and Environmental Engineering

description: Eine große ingenieurwissenschaftliche Herausforderung besteht darin, die Bauwerke des Küstenschutzes für zukünftige Herausforderungen wie z.B. durch den Klimawandel zu ertüchtigen, denn im Zusammenhang mit dem Anstieg des Meeresspiegels müssen diese neu dimensioniert werden.Die Dissertation stellt die Entwicklung einer Methode vor, ein Küstenbauwerk während einer Sturmflut temporal und räumlich hochauflösend zu vermessen. Die generierten Daten sollen zu wesentlichen Erkenntnissen über die Dünendynamik und das Verhalten von Dünen in Durchbruchsituationen beitragen.
Explicitly correlated Gaussians with tensor pre-factors: analytic matrix elements
Creators: name: Fedorov, D. V.
name: Teilmann, A. F.
name: Østerlund, M. C.
name: Norrbohm, T. L.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We consider a specific form of explicitly correlated Gaussians -- with tensor pre-factors -- which appear naturally when dealing with certain few-body systems in nuclear and particle physics. We derive analytic matrix elements with these Gaussians -- overlap, kinetic energy, and Coulomb potential -- to be used in variational calculations of those systems. We also perform a quick test of the derived formulae by applying them to p- and d-waves of the hydrogen atom.
Kepler-445, Kepler-446 and the occurrence of compact multiples orbiting mid-M dwarf stars
Creators: name: Kraus, A.
name: Mann, A.W.
name: Ireland, M.
name: Gazak, J.Z.
name: Gaidos, E.
name: Vanderburg, A.
name: Swift, J.J.
name: Feiden, G.A.
name: Muirhead, P.S.
name: Morton, T.D.
Publisher: name: Institute of Physics Publishing
Year: 2015

description: We confirm and characterize the exoplanetary systems Kepler-445 and Kepler-446: two mid-M dwarf stars, each with multiple, small, short-period transiting planets. Kepler-445 is a metal-rich ([Fe/H] = +0.25 ± 0.10) M4 dwarf with three transiting planets, and Kepler-446 is a metal-poor ([Fe/H] = -0.30 ± 0.10) M4 dwarf also with three transiting planets. Kepler-445c is similar to GJ 1214b: both in planetary radius and the properties of the host star. The Kepler-446 system is similar to the Kepler-42 system: both are metal-poor with large galactic space velocities and three short-period, likely rocky transiting planets that were initially assigned erroneously large planet-to-star radius ratios. We independently determined stellar parameters from spectroscopy and searched for and fitted the transit light curves for the planets, imposing a strict prior on stellar density in order to remove correlations between the fitted impact parameter and planet-to-star radius ratio for short-duration transits. Combining Kepler-445, Kepler-446, and Kepler-42, and isolating all mid-M dwarf stars observed by Kepler with the precision necessary to detect similar systems, we calculate that 21% of mid-M dwarf stars host compact multiples (multiple planets with periods of less than 10 days) for a wide range of metallicities. We suggest that the inferred planet masses for these systems support highly efficient accretion of protoplanetary disk metals by mid-M dwarf protoplanets.
Nonverbal Immediacy Analysis in Education: A Multimodal Computational Model
Creators: name: Petković, Uroš
name: Frenkel, Jonas
name: Hellwich, Olaf
name: Lazarides, Rebecca
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Human-Computer Interaction (cs.HC)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.10; I.5.4; K.3.1
subject: 68T45, 68T10, 68U10, 91E45

description: This paper introduces a novel computational approach for analyzing nonverbal social behavior in educational settings. Integrating multimodal behavioral cues, including facial expressions, gesture intensity, and spatial dynamics, the model assesses the nonverbal immediacy (NVI) of teachers from RGB classroom videos. A dataset of 400 30-second video segments from German classrooms was constructed for model training and validation. The gesture intensity regressor achieved a correlation of 0.84, the perceived distance regressor 0.55, and the NVI model 0.44 with median human ratings. The model demonstrates the potential to provide a valuable support in nonverbal behavior assessment, approximating the accuracy of individual human raters. Validated against both questionnaire data and trained observer ratings, our models show moderate to strong correlations with relevant educational outcomes, indicating their efficacy in reflecting effective teaching behaviors. This research advances the objective assessment of nonverbal communication behaviors, opening new pathways for educational research.
description: 12 pages, 3 figures. Camera-ready version for the SAB 2024: 17th International Conference on the Simulation of Adaptive Behavior
Inclusive and Participatory Interfaces for Photo Archives as New Research Opportunity
Creators: name: Frischknecht, Max
name: Felsing, Ulrike
name: Demleitner, Adrian
Publisher: name: Zenodo
Year: 2022
Subjects: Image Archives
Citizen Science
Interface Design
Archive Infrastructures
Participation

description: This contribution is a lecture, given at Photo Archives VIII: The Digital Photo Archive - Theories, Practices and Rhetoric, 05 – 07 May 2022. Organised by the Department of Media Studies at the University of Basel and the Kunsthistorisches Institut in Florenz – Max Planck Institute.
Focal Concerns: Convening Authorities Charging Decisions in Military Sexual Cases
Creators: name: Cox, Matthew C
Publisher: name: University of Illinois at Chicago
Year: 2023

description: Research strongly supports the conclusion that prosecutors incorporate factors such as race, class, and gender into prosecutorial decisions. Within the context of research on sexual assault case processing within the civilian criminal justice system, the focal concerns theory posits that legal and extralegal factors influence prosecutorial decision-making (Holleran et al., 2010; Spears & Spohn, 1996; Spohn & Holleran, 2001; Spohn & Tellis, 2012a). The extent to which civilian research related to prosecutorial decision-making has been applied to the military’s system is limited and well overdue (Breen & Johnson, 2018). The current study applied civilian research, and the limited military research that exists, to a military criminal justice setting, using the focal concerns theory, assessing to what extent legal and extralegal variables influenced military charging decisions. Theories based on civilian research were supported, in part. Strength of the evidence, offense seriousness, and victim preference significantly influenced the likelihood a case was charged. Blame and believability factors, race, and class were not significant. The generalizability of this research is limited given the small sample size and location. Additional research is necessary to further illuminate the reasoning employed for case charging in the military.
Scalasca/Cube with POP Advisor blueprint
Creators: name: Wylie, Brian J. N.
Publisher: name: Zenodo
Year: 2020
Subjects: Scalasca Score-P CUBE HemeLB JUWELS MPI+GPU

description: Blueprint for cube showing Scalasca CUBE GUI presentation of Score-P summary measurement of HemeLB application execution on 32 JUWELS/V100 compute nodes with 129 MPI processes and 128 GPUs, including POP Advisor efficiency assessment.
description: The authors gratefully acknowledge the Gauss Centre for Supercomputing e.V. (www.gauss-centre.eu) for funding this project by providing computing time through the John von Neumann Institute for Computing (NIC) on the GCS Supercomputer JUWELS at Jülich Supercomputing Centre (JSC).
Deterministic amplification of Schroedinger cat states in circuit quantum electrodynamics
Creators: name: Joo, Jaewoo
name: Elliott, Matthew
name: Oi, Daniel K. L.
name: Ginossar, Eran
name: Spiller, Timothy P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a dynamical scheme for deterministically amplifying photonic Schroedinger cat states based on a set of optimal state-transfers. The scheme can be implemented in strongly coupled qubit-cavity systems and is well suited to the capabilities of state of the art superconducting circuits. The ideal analytical scheme is compared with a full simulation of the open Jaynes-Cummings model with realistic device parameters. This amplification tool can be utilized for practical quantum information processing in non-classical continuous-variable states.
description: A revised manuscript has 6 figures
An empirical calibration to estimate cool dwarf fundamental parameters from H-band spectra
Creators: name: Mann, A.W.
name: Irwin, J.
name: Newton, E.R.
name: Charbonneau, D.
Publisher: name: Institute of Physics Publishing
Year: 2015

description: Interferometric radius measurements provide a direct probe of the fundamental parameters of M dwarfs. However, interferometry is within reach for only a limited sample of nearby, bright stars. We use interferometrically measured radii, bolometric luminosities, and effective temperatures to develop new empirical calibrations based on low-resolution, near-infrared spectra. We find that H-band Mg and Al spectral features are good tracers of stellar properties, and derive functions that relate effective temperature, radius, and log luminosity to these features. The standard deviations in the residuals of our best fits are, respectively, 73 K, 0.027 R, and 0.049 dex (an 11% error on luminosity). Our calibrations are valid from mid K to mid M dwarf stars, roughly corresponding to temperatures between 3100 and 4800 K. We apply our H-band relationships to M dwarfs targeted by the MEarth transiting planet survey and to the cool Kepler Objects of Interest (KOIs). We present spectral measurements and estimated stellar parameters for these stars. Parallaxes are also available for many of the MEarth targets, allowing us to independently validate our calibrations by demonstrating a clear relationship between our inferred parameters and the stars' absolute K magnitudes. We identify objects with magnitudes that are too bright for their inferred luminosities as candidate multiple systems. We also use our estimated luminosities to address the applicability of near-infrared metallicity calibrations to mid and late M dwarfs. The temperatures we infer for the KOIs agree remarkably well with those from the literature; however, our stellar radii are systematically larger than those presented in previous works that derive radii from model isochrones. This results in a mean planet radius that is 15% larger than one would infer using the stellar properties from recent catalogs. Our results confirm the derived parameters from previous in-depth studies of KOIs 961 (Kepler-42), 254 (Kepler-45), and 571 (Kepler-186), the latter of which hosts a rocky planet orbiting in its star's habitable zone.
Systemic risk analysis in reconstructed economic and financial networks
Creators: name: Cimini, Giulio
name: Squartini, Tiziano
name: Garlaschelli, Diego
name: Gabrielli, Andrea
Publisher: name: arXiv
Year: 2014
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: We address a fundamental problem that is systematically encountered when modeling complex systems: the limitedness of the information available. In the case of economic and financial networks, privacy issues severely limit the information that can be accessed and, as a consequence, the possibility of correctly estimating the resilience of these systems to events such as financial shocks, crises and cascade failures. Here we present an innovative method to reconstruct the structure of such partially-accessible systems, based on the knowledge of intrinsic node-specific properties and of the number of connections of only a limited subset of nodes. This information is used to calibrate an inference procedure based on fundamental concepts derived from statistical physics, which allows to generate ensembles of directed weighted networks intended to represent the real system, so that the real network properties can be estimated with their average values within the ensemble. Here we test the method both on synthetic and empirical networks, focusing on the properties that are commonly used to measure systemic risk. Indeed, the method shows a remarkable robustness with respect to the limitedness of the information available, thus representing a valuable tool for gaining insights on privacy-protected economic and financial systems.
Stellar diameters and temperatures - VI. High angular resolution measurements of the transiting exoplanet host stars HD 189733 and HD 209458 and implications for models of cool dwarfs
Creators: name: Feiden, G.A.
name: López-Morales, M.
name: Maestro, V.
name: Farrington, C.
name: White, T.R.
name: Brewer, J.
name: Turner, N.H.
name: Boyajian, T.
name: McAlister, H.A.
name: Sturmann, L.
name: Spada, F.
name: ten Brummelaar, T.A.
name: Ireland, M.
name: Mann, A.W.
name: Ciardi, D.R.
name: Jones, J.
name: Ridgway, S.
name: Huber, D.
name: van Belle, G.T.
name: Demarque, P.
name: Basu, S.
name: Kane, S.R.
name: Schaefer, G.
name: Goldfinger, P.J.
name: Brooke Lamell, C.
name: Fischer, D.A.
name: von Braun, K.
Publisher: name: Oxford University Press
Year: 2015

description: We present direct radii measurements of the well-known transiting exoplanet host stars HD 189733 and HD 209458 using the CHARA Array interferometer. We find the limbdarkened angular diameters to be θLD = 0.3848 ± 0.0055 and 0.2254 ± 0.0072 mas for HD 189733 and HD 209458, respectively. HD 189733 and HD 209458 are currently the only two transiting exoplanet systems where detection of the respective planetary companion's orbital motion from high-resolution spectroscopy has revealed absolute masses for both star and planet. We use our new measurements together with the orbital information from radial velocity and photometric time series data, Hipparcos distances, and newly measured bolometric fluxes to determine the stellar effective temperatures (Teff = 4875 ± 43, 6092 ± 103 K), stellar linear radii (R* =0.805±0.016, 1.203±0.061 R), mean stellar densities (ρ* =1.62±0.11, 0.58 ± 0.14 ρ), planetary radii (Rp = 1.216 ± 0.024, 1.451 ± 0.074 RJup), and mean planetary densities (ρp = 0.605 ± 0.029, 0.196 ± 0.033 ρJup) for HD 189733b and HD 209458b, respectively. The stellar parameters for HD 209458, an F9 dwarf, are consistent with indirect estimates derived from spectroscopic and evolutionary modelling. However, we find that models are unable to reproduce the observational results for the K2 dwarf, HD 189733. We show that, for stellar evolutionary models to match the observed stellar properties of HD 189733, adjustments lowering the solar-calibrated mixing-length parameter to αMLT =1.34 need to be employed.
Wie geht die Staatsgewalt vom Volke aus?
Creators: name: Hättich, Manfred
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 13 Nr. 3 (1984): Internationale katholische Zeitschrift Communio, Band 13, Heft 3
Advanced Data Processing of THz-Time Domain Spectroscopy Data with Sinusoidally Moving Delay Lines
Creators: name: Vogel, Tim
name: Saraceno, Clara Jody
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We provide a comprehensive technical analysis of the data acquisition process with oscillating delay lines for Terahertz-time domain spectroscopy. The utilization of these rapid stages, particularly in high-repetition-rate systems, is known to enable an effective reduction of noise content through averaging. However, caution must be exercised to optimize the data averaging process, with the goal of significantly optimizing the dynamic range (DR) and signal-to-noise ratio (SNR). Here we discuss some pitfalls to avoid and the effect of improper data handling on the dynamic range obtainable. A free and open-source program, called parrot (Processing All Rapidly & Reliably Obtained THz-traces), is provided alongside this publication to overcome the discussed pitfalls and facilitate the acceleration of experimental setups and data analysis, thereby enhancing signal fidelity and reproducibility.
description: Published in the Journal of Infrared, Millimeter, and Terahertz Waves. 13 pages, 6 figures
Twenty-three New Heartbeat Star Systems Discovered Based on TESS Data
Creators: name: Li, Min-Yu
name: Qian, Sheng-Bang
name: Zhou, Ai-Ying
name: Zhu, Li-Ying
name: Liao, Wen-Ping
name: Zhao, Er-Gang
name: Shi, Xiang-Dong
name: Li, Fu-Xing
name: Sun, Qi-Bin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Heartbeat stars (HBSs) are ideal astrophysical laboratories to study the formation and evolution of binary stars in eccentric orbits and the internal structural changes of their components under strong tidal action. We discover 23 new HBSs based on TESS photometric data. The orbital parameters, including orbital period, eccentricity, orbital inclination, argument of periastron, and epoch of periastron passage of these HBSs are derived by using a corrected version of Kumar et al.'s model based on the Markov Chain Monte Carlo (MCMC) method. The preliminary results show that these HBSs have orbital periods in the range from 2.7 to 20 days and eccentricities in the range from 0.08 to 0.70. The eccentricity-period relation of these objects shows a positive correlation between eccentricity and period, and also shows the existence of orbital circularization. The Hertzsprung-Russell diagram shows that the HBSs are not all located in a particular area. The distribution of the derived parameters suggests a selection bias within the TESS survey towards massive HBSs with shorter orbital periods, higher temperatures and luminosities. These objects are a very useful source to study the structure and evolution of eccentricity orbit binaries and to extend the TESS HBS catalog.
description: 10 pages, 7 figures
Training material for RA-A tool
Creators: name: Gurusamy, Kurinchi Selvan
Publisher: name: Zenodo
Year: 2020
Subjects: RA-A training, preclinical animal research

description: This zipped file provides the links to the training material, link for the quiz to assess the understanding of the training material, the PowerPoint presentation used for the training material, and the RA-A tool. You can unzip the file using the unzip program available in your computer or through a free unzip program 7-zip available at https://www.7-zip.org/download.html.
Der deutsche Widerstand und der 20. Juli 1944
Creators: name: Erdmann, Karl Dietrich
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 13 Nr. 3 (1984): Internationale katholische Zeitschrift Communio, Band 13, Heft 3
"Während sie beteten, erbebte der Ort"
Creators: name: Alting Von Geusau, Frans Alphons Maria
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 13 Nr. 3 (1984): Internationale katholische Zeitschrift Communio, Band 13, Heft 3
Additional file 5: of Inhibition of ERK1/2 in cancer-associated pancreatic stellate cells suppresses cancerâ  stromal interaction and metastasis
Creators: name: Zilong Yan
name: Kenoki Ohuchida
name: Fei, Shuang
name: Zheng, Biao
name: Weiyu Guan
name: Haimin Feng
name: Kibe, Shin
name: Ando, Yohei
name: Koikawa, Kazuhiro
name: Abe, Toshiya
name: Iwamoto, Chika
name: Shindo, Koji
name: Moriyama, Taiki
name: Nakata, Kohei
name: Miyasaka, Yoshihiro
name: Ohtsuka, Takao
name: Mizumoto, Kazuhiro
name: Hashizume, Makoto
name: Nakamura, Masafumi
Publisher: name: Figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Plant Biology
subject: 60506 Virology

description: Table S1. Primers used for quantitative RT-PCR. (DOCX 56 kb)
Extended topological group structure due to average reflection symmetry
Creators: name: Diez, M.
name: Pikulin, D. I.
name: Fulga, I. C.
name: Tworzydlo, J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We extend the single-particle topological classification of insulators and superconductors to include systems in which disorder preserves average reflection symmetry. We show that the topological group structure of bulk Hamiltonians and topological defects is exponentially extended when this additional condition is met, and examine some of its physical consequences. Those include localization-delocalization transitions between topological phases with the same boundary conductance, as well as gapless topological defects stabilized by average reflection symmetry.
description: 8 pages, 5 figures, 1 table; improved section 4 "Extended topological classification" incl. example of stacked QSH layers
When do stars in 47 Tucanae lose their mass?
Creators: name: Heyl, Jeremy
name: Kalirai, Jason
name: Richer, Harvey B.
name: Marigo, Paola
name: Antolini, Elisa
name: Goldsbury, Ryan
name: Parada, Javiera
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: By examining the diffusion of young white dwarfs through the core of the globular cluster 47 Tucanae, we estimate the time when the progenitor star lost the bulk of its mass to become a white dwarf. According to stellar evolution models of the white-dwarf progenitors in 47 Tucanae, we find this epoch to coincide approximately with the star ascending the asymptotic giant branch ($3.0 \pm 8.1$ Myr before the tip of the AGB) and more than ninety million years after the helium flash (with ninety-percent confidence). From the diffusion of the young white dwarfs we can exclude the hypothesis that the bulk of the mass loss occurs on the red-giant branch at the four-sigma level. Furthermore, we find that the radial distribution of horizontal branch stars is consistent with that of the red-giant stars and upper-main-sequence stars and inconsistent with the loss of more than 0.2 solar masses on the red-giant branch at the six-sigma level.
description: 8 pages, 4 figures, version accepted by the Astrophysical Journal
Time-Resolved and Time-Integrated Spectro-Polarimetry Predictions of Gamma Ray Bursts
Creators: name: Parsotan, Tyler
Publisher: name: Zenodo
Year: 2022

description: A major question surrounding the study of Gamma Ray Bursts (GRBs) is the origin of the high energy prompt emission detected in the first few tens of seconds of the event. This question can be answered with time-resolved and time-integrated polarimetry observations across the electromagnetic spec- trum. Recently, we used the MCRaT radiative transfer code to make robust optical to gamma-ray spectropolarimetry predictions for GRB prompt emission. The MCRaT code follows photons as they scatter in a hydrodynamically simulated GRB jet, taking cyclo-synchrotron emission and absorption processes and the full Klein-Nishina cross section into account. Using these simulations we present our constructed mock observations and associated correlations which can then be compared against future observations. We also show how our simulations allow us to infer GRB jet properties from future detected spectropolarimetric measurements, something that was not possible before. This study shows the importance and the utility of conducting global radiative transfer simulations of realistic GRB jet structures.
Wide cool and ultracool companions to nearby stars from pan-STARRS 1
Creators: name: Bowler, B.P.
name: Best, W.M.J.
name: Kaiser, N.
name: Draper, P.W.
name: Metcalfe, N.
name: Aller, K.M.
name: Wainscoat, R.J.
name: Dupuy, T.
name: Flewelling, H.
name: Price, P.A.
name: Morgan, J.S.
name: Tonry, J.L.
name: Magnier, E.A.
name: Chambers, K.C.
name: Liu, M.C.
name: Mann, A.W.
name: Hodapp, K.W.
name: Kudritzki, R.-P.
name: Burgett, W.S.
name: Deacon, N.R.
name: Redstone, J.A.
Publisher: name: Institute of Physics Publishing
Year: 2014

description: We present the discovery of 57 wide (>5″) separation, low-mass (stellar and substellar) companions to stars in the solar neighborhood identified from Pan-STARRS 1 (PS1) data and the spectral classification of 31 previously known companions. Our companions represent a selective subsample of promising candidates and span a range in spectral type of K7-L9 with the addition of one DA white dwarf. These were identified primarily from a dedicated common proper motion search around nearby stars, along with a few as serendipitous discoveries from our Pan-STARRS 1 brown dwarf search. Our discoveries include 23 new L dwarf companions and one known L dwarf not previously identified as a companion. The primary stars around which we searched for companions come from a list of bright stars with well-measured parallaxes and large proper motions from the Hipparcos catalog (8583 stars, mostly A-K dwarfs) and fainter stars from other proper motion catalogs (79170 stars, mostly M dwarfs). We examine the likelihood that our companions are chance alignments between unrelated stars and conclude that this is unlikely for the majority of the objects that we have followed-up spectroscopically. We also examine the entire population of ultracool (>M7) dwarf companions and conclude that while some are loosely bound, most are unlikely to be disrupted over the course of ∼10 Gyr. Our search increases the number of ultracool M dwarf companions wider than 300 AU by 88% and increases the number of L dwarf companions in the same separation range by 82%. Finally, we resolve our new L dwarf companion to HIP 6407 into a tight (0.″13, 7.4 AU) L1+T3 binary, making the system a hierarchical triple. Our search for these key benchmarks against which brown dwarf and exoplanet atmosphere models are tested has yielded the largest number of discoveries to date.
Supplementary Information from Food for all? Wildfire ash fuels growth of diverse eukaryotic plankton
Creators: name: Ladd, T. M.
name: Catlett, D.
name: Maniscalco, M. A.
name: Kim, S. M.
name: Kelly, R. L.
name: John, S. G.
name: Carlson, C. A.
name: Iglesias-Rodríguez, M. D.
Publisher: name: The Royal Society
Year: 2023
Subjects: Ecology not elsewhere classified
Microbiology not elsewhere classified

description: Includes Supplementary Materials and Methods, Figs. S1 - S4, Tables S1 – S5, Captions for Datasets S1 - S2
Revisiting the statistical equilibrium of H$^-$ in stellar atmospheres
Creators: name: Barklem, Paul S.
name: Amarsi, Anish M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The negative hydrogen ion H$^-$ is, almost without exception, treated in local thermodynamic equilibrium (LTE) in the modelling of F, G, and K stars, where it is the dominant opacity source in the visual spectral region. This assumption rests in practice on a study from the 1960s. Since that work, knowledge of relevant atomic processes and theoretical calculations of stellar atmospheres and their spectra have advanced significantly, but this question has not been reexamined. We present calculations based on a slightly modified analytical model that includes H, H$_2$, and H$^-$, together with modern atomic data and a grid of 1D LTE theoretical stellar atmosphere models with stellar parameters ranging from T$_\mathrm{eff} = 4000$ to 7000~K, $\log{g} = 1$ to 5 cm/s$^2$, and [Fe/H]$=-3$ to 0. We find direct non-LTE effects on populations in spectrum-forming regions, continua, and spectral lines of about 1-2% in stars with higher T$_\mathrm{eff}$ and/or lower $\log g$. Effects in models for solar parameters are smaller by a factor of 10, about 0.1-0.2%, and are practically absent in models with lower T$_\mathrm{eff}$ and/or higher $\log g$. These departures from LTE found in our calculations originate from the radiative recombination of electrons with hydrogen to form H$^-$ exceeding photodetachment, that is, overrecombination. Modern atomic data are not a source of significant differences compared to the previous work, although detailed data for processes on H$_2$ resolved with vibrational and rotational states provide a more complete and complex picture of the role of H$_2$ in the equilibrium of H$^-$. In the context of modern studies of stellar spectra at the percent level, our results suggest that this question requires further attention, including a more extensive reaction network, and indirect effects due to non-LTE electron populations.
description: Accepted by Astronomy and Astrophysics. Replaced with new version following language editing, as well as correct font, and correction of some minor typos
The SL(2,C) Casson invariant for knots and the $\widehat{A}$-polynomial
Creators: name: Boden, Hans U.
name: Curtis, Cynthia L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25, 57M27

description: In this paper, we extend the definition of the $SL_2(\Bbb C)$ Casson invariant to arbitrary knots $K$ in integral homology 3-spheres and relate it to the $m$-degree of the $\widehat{A}$-polynomial of $K$. We prove a product formula for the $\widehat{A}$-polynomial of the connected sum $K_1 \# K_2$ of two knots in $S^3$ and deduce additivity of $SL_2(\Bbb C)$ Casson knot invariant under connected sum for a large class of knots in $S^3$. We also present an example of a nontrivial knot $K$ in $S^3$ with trivial $\widehat{A}$-polynomial and trivial $SL_2(\Bbb C)$ Casson knot invariant, showing that neither of these invariants detect the unknot.
description: Final version; new material includes a discussion of the character variety of Whitehead link