cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Two essays on corporate finance
Creators: name: Kim, Tae-Nyun
Publisher: name: No Publisher Supplied
Year: 2011

description: The first essay looks at the impact of dynamic financial constraints and corporate cash holdings on investment-cash flow sensitivity. In this essay, I find that a firm increases its investment-cash flow sensitivity when it has higher level of financial constraints than previous period. In addition, I find that financially constrained firms have significantly bigger impact of corporate cash holdings on investment-cash flowsensitivity than unconstrained firms. Moreover, I show that cash holdings of a firm has a negative relationship with its investment-cash flow sensitivity if the level of itsinvestment does not exceed internal financing sources, where the level of internal financing is defined as the sum of the previous period’s cash holdings and the current period’s cash flow. Lastly, I find that bank-dependent firms experience higher increase ininvestment-cash flow sensitivity than non-bank-dependent firms during the IT bubble burst period in the early 2000s and the subprime mortgage crisis in the late 2000s, which suggests that firms facing financial constraints increase investment-cash flow sensitivity. The second essay investigates the influence of the external shock on the speed of adjustment (SOA) toward several target ratios of firms. To look at the impact of an exogenous shock on SOA, I employ mandatory contributions (MCs) of defined benefit (DB) pension plans as a measure of the external shock, and I find a negative impact of the exogenous shock on the level of leverage and SOA toward target leverage. This result is robust when including firm and year fixed effects, when using GMM or long differencingestimation to reduce the biases in estimation, and when assuming that mandatory contributions are endogenously determined. The negative impact of MCs on SOA is especially bigger for firms which have volatile historical leverage or stronger governance structure. Though the total liability level of DB pension plans has a negative impact on both the level of leverage and SOA toward target leverage, it becomes statisticallyinsignificant or trivial in magnitude after including firm fixed effects and year dummies in the model. When examining the impact of MCs on SOA toward other target ratios of firms, I find a negative impact of MCs on SOA toward the target investment level.
Additional file 3: of Serum MMP-8 and TIMP-1 predict prognosis in colorectal cancer
Creators: name: BĂśckelman, Camilla
name: Beilmann-Lehtonen, Ines
name: Kaprio, Tuomas
name: Selja Koskensalo
name: Tervahartiala, Taina
name: Mustonen, Harri
name: Ulf-HĂĽkan Stenman
name: Sorsa, Timo
name: Caj Haglund
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Marine Biology
subject: Cancer

description: Univariable Cox regression analyses for subgroups for disease-specific survival in colorectal cancer patients. (PDF 19Â kb)
title: Detection of an ultra-bright submillimeter galaxy in the Subaru/XMM-Newton Deep Field using AzTEC/ASTE
Creators: name: Ikarashi, S
name: Yun, Min
Publisher: name: University of Massachusetts Amherst
Year: 2010
Subjects: subject: Astrophysics and Astronomy

description: This is the pre-published version harvested from ArXiv.
description: Abstract: We report the detection of an extremely bright ($\sim$34 mJy at 1100 $\mu$m and $\sim$73 mJy at 880 $\mu$m) submillimeter galaxy (SMG), AzTEC-ASTE-SXDF1100.001 (hereafter referred to as SXDF1100.001), discovered in 1100 $\mu$m observations of the Subaru/XMM-Newton Deep Field using AzTEC on ASTE. Subsequent CARMA 1300 $\mu$m and SMA 880 $\mu$m observations successfully pinpoint the location of SXDF1100.001 and suggest that it has two components, extended (FWHM of $\sim$4^{\prime\prime}) and compact (unresolved) ones. Z-Spec on CSO has also been used to obtain a wide band spectrum from 190 to 308 GHz, although no significant emission/absorption lines are found. The derived upper limit to the line-to-continuum flux ratio is 0.1--0.3 (2 $\sigma$) across the Z-Spec band.
Calibration requirements for Epoch of Reionization 21-cm signal observations -- II. Analytical estimation of the bias and variance with time-correlated residual gains
Creators: name: Kumar, Jais
name: Dutta, Prasun
name: Choudhuri, Samir
name: Roy, Nirupam
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Observation of redshifted 21-cm signals from neutral hydrogen holds the key to understanding the structure formation and its evolution during the reionization and post-reionization era. Apart from the presence of orders of magnitude larger foregrounds in the observed frequency range, the instrumental effects of the interferometers combined with the ionospheric effects present a considerable challenge in the extraction of 21-cm signals from strong foregrounds. The systematic effects of time and frequency correlated residual gain errors originating from the measurement process introduce a bias and enhance the variance of the power spectrum measurements. In this work, we study the effect of time-correlated residual gain errors in the presence of strong foreground. We present a method to produce analytic estimates of the bias and vari ance in the power spectrum. We use simulated observations to confirm the efficacy of this method and then use it to understand various effects of the gain errors. We find that as the standard deviation in the residual gain errors increases, the bias in the estimation supersedes the variance. It is observed that an optimal choice of the time over which the gain solutions are estimated minimizes the risk. We also find that the interferometers with higher baseline densities are preferred instruments for these studies.
description: 15 Pages, 9 Figures, Accepted for Publication in MNRAS
Provenance and Weathering of Clays Delivered to the Bay of Bengal During the Middle Miocene: Linkages to Tectonics and Monsoonal Climate
Creators: name: Bretschneider, Lisa
name: Hathorne, Ed C.
name: Huang, Huang
name: Lübbers, Julia
name: Kochhann, Karlos G. D.
name: Holbourn, Ann
name: Kuhnt, Wolfgang
name: Thiede, Rasmus
name: Gebregiorgis, Daniel
name: Giosan, Liviu
name: Frank, Martin
Publisher: name: FID GEO
Year: 2021

description: Tectonics and regional monsoon strength control weathering and erosion regimes of the watersheds feeding into the Bay of Bengal, which are important contributors to global climate evolution via carbon cycle feedbacks. The detailed mechanisms controlling the input of terrigenous clay to the Bay of Bengal on tectonic to orbital timescales are, however, not yet well understood. We produced orbital‐scale resolution geochemical records for International Ocean Discovery Program Site U1443 (southern Bay of Bengal) across five key climatic intervals of the middle to late Miocene (15.8–9.5 Ma). Our new radiogenic Sr, Nd, and Pb isotope time series of clays transported to the Ninetyeast Ridge suggest that the individual contributions from different erosional sources overall remained remarkably consistent during the Miocene despite major tectonic reorganizations in the Himalayas. On orbital timescales, however, high‐resolution data from the five investigated intervals show marked fluctuations of all three isotope systems. Interestingly, the variability was much higher within the Miocene Climatic Optimum (around 16–15 Ma) and across the major global cooling (~13.9–13.8 Ma) until ~13.5 Ma, than during younger time intervals. This change is attributed to a major restriction on the supply of High Himalayan erosion products due to migration of the peak precipitation area toward the frontal domains of the Himalayas and the Indo‐Burman Ranges. The transient excursions of the radiogenic isotope signals on orbital timescales most likely reflect climatically driven shifts in monsoon strength.
description: Key Points: A consistent mix of clay sources contributed to the Bay of Bengal throughout the middle to late Miocene A marked change in detrital Sr, Nd, and Pb isotope variability at 13.5 Ma was related to Miocene global cooling Transient orbital‐scale fluctuations in clay source most likely reflect changes in monsoon intensity
description: Deutsche Forschungsgemeinschaft (DFG) http://dx.doi.org/10.13039/501100001659
title: ADCO, Cartulaire de Cîteaux pour les domaines de Beaune (XVe siècle), Cart. 177 (11 H 289), 197 folios, f. 0070
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2015
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de Cîteaux pour les domaines de Beaune (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 177 (11 H 289), 197 folios, f. 0070, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions d’Izeure (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 177 (11 H 289), 197 folios, f. 0070, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Fluid‐Earthquake and Earthquake‐Earthquake Interactions in Southern Kansas, USA
Creators: name: Verdecchia, Alessandro
name: Cochran, Elizabeth S.
name: Harrington, Rebecca M.
Publisher: name: FID GEO
Year: 2021

description: An increase in injection activity associated with energy production in southern Kansas starting in 2013 has been linked to the occurrence of more than 130,000 earthquakes (M −1.5 to 4.9) between 2014 and 2017. Studies suggest that the dramatic increase in seismicity rate is related to wastewater injection into the highly permeable Arbuckle formation. Most of the seismicity is located in the underlying crystalline basement, for which hydrological properties and specific fault geometries are unknown. Additionally, some earthquake clusters occurred relatively far (tens of kilometers) from the main injection wells. Therefore, the effect of pore pressure diffusion may be insufficient to explain the relation between the volume of injected fluids and the spatiotemporal evolution of seismicity. Combining physical models (static stress and poroelasticity) and a statistical cluster analysis applied to a high‐resolution relocated catalog, we analyze the evolution of seismicity in southern Kansas. We find that pore pressure changes (Δp) and Coulomb stress changes (ΔCFS) due to fluid diffusion smaller than 0.1 MPa are enough to initiate seismic sequences, which then evolve depending on their distance from the major injection wells. However, we find that earthquake sequences have different seismogenic responses to Δp and ΔCFS in terms of triggering threshold. In regions located close to disposal wells (Harper area) our cluster analysis suggests that both earthquake interactions and fluid diffusion control the evolution of seismicity. On the other hand, at greater distances (Milan area), where clustering behavior suggests greater earthquake interactions, we find that coseismic ΔCFS are larger than Δp.
description: Key Points: Pore pressure changes due to fluid diffusion smaller than 0.1 MPa are enough to initiate seismic sequences Coseismic ΔCFS due to the largest events in the catalog control the temporal and spatial distribution of aftershocks Earthquake triggering mechanisms in southern Kansas may differ depending on the distance from major wells
Lettre de Esprit-Claude-François Calvet à Jean-François Séguier, 1783-10-08
Creators: name: Calvet, Esprit-Claude-François
name: Esprit-Claude-François Calvet
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: Antiquités (général)
Numismatique

description: [transcription] J'aifait passer, monsieur et cher ami, à M. le baron de Sainte-Croix le paquet que M. Gourand m'a porté à son adresse, je ne vous écrirais même pas là-dessus parce que vous êtes assuré de mon exactitude, mais je viens d'apprendre que M. de Sainte-Croix est en Dauphiné et que madame est à Lyon auprès de ses enfans. Ne soyez donc point en peine si vous tardez à recevoir la nouvelle de la réception de votre paquet, on m'a dit que l'un et l'autre ne doivent retourner qu'après la Toussaint. Je n'aifait depuis longtemps aucune acquisition en antiquités et je ne suis informé d'aucune découverte intéressante, j'espère seulement de recevoir dans peu de jours une urne contenant 45 médailles de grand bronze qu'on vient de trouver à quelques lieues d'ici; on m'a déjà prévenu que les têtes n'allaient que depuis Vespasien jusqu'à Commode. J'aurais bien voulu que vous m'eussiez dit quelque chose d'agréable sur votre santé. Conservez-vous, nous vous en prions tous, et croyez-moitoujours le plus zélé de vos serviteur.

Calvet.

Avignon, ce 8 octobre 1783.
description: [personnes citées] Agricole-Marguerite-Agnèsd'Elbène, baronne de Sainte-Croix, Guillaume-Emmanuel-Joseph de Guilhem de Clermont-Lodève, baron de Sainte-Croix, M. Gourand
description: Source: [lieu de Conservation] Nîmes, Bibliothèque Carré d'Art [cote]ms. 140, fol. 241
description: Source: ark:/12148/btv1b10015185m
Formation of Continental Microplates Through Rift Linkage: Numerical Modeling and Its Application to the Flemish Cap and Sao Paulo Plateau
Creators: name: Neuharth, Derek
name: Brune, Sascha
name: Glerum, Anne
name: Heine, Christian
name: Welford, J. Kim
Publisher: name: FID GEO
Year: 2021

description: Continental microplates are enigmatic plate boundary features, which can occur in extensional and compressional regimes. Here we focus on microplate formation and their temporal evolution in continental rift settings. To this aim, we employ the geodynamic finite element software ASPECT to conduct 3D lithospheric‐scale numerical models from rift inception to continental breakup. We find that depending on the strike‐perpendicular offset and crustal strength, rift segments connect or interact through one of four regimes: (1) an oblique rift, (2) a transform fault, (3) a rotating continental microplate or (4) a rift jump. We highlight that rotating microplates form at offsets >200 km in weak to moderately strong crustal setups. We describe the dynamics of microplate evolution from initial rift propagation, to segment overlap, vertical‐axis rotation, and eventually continental breakup. These models may explain microplate size and kinematics of the Flemish Cap, the Sao Paulo Plateau, and other continental microplates that formed during continental rifting worldwide.
description: Plain Language Summary: Microplates are enigmatic features that form in the boundaries between tectonic plates. In continental rifts, plates are successively broken to eventually form new oceans. As the continental crust is very heterogeneous, rifts rarely form in straight lines. In some cases, individual rift segments initiate hundreds of kilometers apart both along and perpendicular to strike and as these segments grow, they interact and link. Here we use 3D computer simulations to investigate the linkage of offset rifts. We find that rift linkage is primarily controlled by the strike‐perpendicular offset and crustal strength. At low offset they link through an oblique rift segment, at medium offset a transform fault is formed, and at large offsets in weak crust they overlap and rotate a central block known as a microplate. We suggest that the latter processes have shaped the Flemish Cap, the Sao Paulo Plateau, and many other continental promontories at rifted margins worldwide.
description: Key Points: Strike‐perpendicular offset and crustal strength control the mode of rift segment linkage (microplate, oblique, or transform) Rotating continental microplates form at offsets of >200 km for weak and moderately strong crust Modeled microplate evolution may explain the formation of the Flemish Cap, the Sao Paulo Plateau, and other continental promontories
description: Helmholtz Young Investigator Group CRYSTALS
Logarithmically Enhanced Corrections to the Decay Rate and Forward Backward Asymmetry in anti-B --> X(s) l+ l-
Creators: name: Huber, Tobias
name: Hurth, Tobias
name: Lunghi, Enrico
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study logarithmically enhanced electromagnetic corrections to the decay rate in the high dilepton invariant mass region as well as corrections to the forward backward asymmetry (FBA) of the inclusive rare decay $\bar{B} \to X_s \ell^+ \ell^-$. As expected, the relative effect of these corrections in the high dilepton mass region is around -8% for the muonic final state and therefore much larger than in the low dilepton mass region. We also present a complete phenomenological analysis, to improved NNLO accuracy, of the dilepton mass spectrum and the FBA integrated in the low dilepton mass region, including a new approach to the zero of the FBA. The latter represents one of the most precise predictions in flavour physics with a theoretical uncertainty of order 5%. We find $(q_0^2)_{μμ} = (3.50 \pm 0.12) \gev^2$. For the high dilepton invariant mass region, we have ${\cal B}(\bar B\to X_sμμ)_{\rm high} = (2.40^{+0.69}_{-0.62}) \times 10^{-7}$. The dominant uncertainty is due to the $1/m_b$ corrections and can be significantly reduced in the future. For the low dilepton invariant mass region, we confirm previous results up to small corrections.
description: 26 pages, 3 figures, minor changes, published version
The $q-$Onsager algebra and multivariable $q-$special functions
Creators: name: Baseilhac, Pascal
name: Vinet, Luc
name: Zhedanov, Alexei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Two sets of mutually commuting $q-$difference operators $x_i$ and $y_j$, $i,j=1, ...,N$ such that $x_i$ and $y_i$ generate a homomorphic image of the $q-$Onsager algebra for each $i$ are introduced. The common polynomial eigenfunctions of each set are found to be entangled product of elementary Pochhammer functions in $N$ variables and $N+3$ parameters. Under certain conditions on the parameters, they form two `dual' bases of polynomials in $N$ variables. The action of each operator with respect to its dual basis is block tridiagonal. The overlap coefficients between the two dual bases are expressed as entangled products of $q-$Racah polynomials and satisfy an orthogonality relation. The overlap coefficients between either one of these bases and the multivariable monomial basis are also considered. One obtains in this case entangled products of dual $q-$Krawtchouk polynomials. Finally, the `split' basis in which the two families of operators act as block bidiagonal matrices is also provided.
description: 21 pages. v4: typos corrected in eq. (3.24), Example 5.2, Appendix B compared with published version
Application of the Closure Principle Computational Approach Test to Assess Ecotoxicological Field Studies: Comparative Analysis Using Earthworm Field Test Abundance Data
Creators: name: Daniels, Benjamin
name: Roß‐Nickoll, Martina
name: Jänsch, Stephan
name: Pieper, Silvia
name: Römbke, Jörg
name: Scholz‐Starke, Björn
name: Ottermanns, Richard
Publisher: name: FID GEO
Year: 2021

description: Field studies to determine the effects of chemicals on earthworm communities are generally conducted according to International Organization for Standardization standard 11268‐3 (and later comments). However, statistical test procedures suggested in the guideline are frequently criticized, mainly for 2 reasons: 1) Earthworm abundances are count data and often do not fulfill requirements for multiple t tests (normal distribution and homogeneity of variance), and 2) the resulting toxicity metrics of multiple testing procedures (no/lowest‐observed‐effect concentrations [NOEC/LOEC]) fail to adequately detect the actual level of effects. Recently, a new method to overcome these shortcomings was presented by the introduction of the closure principle computational approach test (CPCAT). We applied this statistical method to assess chemical effects on abundance in a large dataset of 26 earthworm field studies (with up to 3 test chemical application rates) and an additional extended study with 6 application rates. A comparative analysis was provided considering results of well‐established multiple testing approaches (Dunnett's test) with particular consideration of the degree of overdispersion found in these data. It was shown that the CPCAT detects substantially more effects in earthworm field tests as statistically significant than standard t test approaches. This lowered the LOEC/NOEC for many chemical treatments to control comparisons. As a consequence, the statistically detected NOECs/LOECs were often set at lower percentage deviations between control and chemical treatment. This is the first time the performance of the CPCAT has been assessed within a comprehensive analysis of earthworm field study data. Environ Toxicol Chem 2021;40:1750–1760. © 2021 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
description: Umweltbundesamt http://dx.doi.org/10.13039/501100010809
Delta-problems for the generalized Euler-Darboux equation
Creators: name: Rodionova, I. N.
name: Dolgopolov, V. M.
name: Dolgopolov, M. V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35L10, 35Q05

description: Degenerate hyperbolic equations are dealing with many important issues for applied nature. While a variety of degenerate equations and boundary conditions, successfully matched to these differential equation, most in the characteristic coordinates reduced to Euler-Darboux one. Some boundary value problems, in particular Cauchy problem, for the specified equation demanded the introduction of special classes in which formulae are simple and can be used to meet the new challenges, including Delta-problems in squares that contain singularity line for equation coefficients with data on adjacent or parallel sides of the square. In this short communication the generalized Euler-Darboux equation with negative parameters in the rectangular region is considered.
description: 5 pages, 1 figure, Uzbek-Israel Scientific Conference Contemporary Problems in Mathematics and Physics (October 6-10, 2017), International Conference Actual problems of differential equations and their applications. TASHKENT. UZBEKISTAN. December 15-17, 2017 and J. Samara State Tech. Univ., Ser. Phys. Math. Sci., Forthcoming paper (Mi vsgtu1557)
Additional file 6: of Comparing performance between log-binomial and robust Poisson regression models for estimating risk ratios under model misspecification
Creators: name: Wansu Chen
name: Qian, Lei
name: Jiaxiao Shi
name: Franklin, Meredith
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Marine Biology

description: Results on simulated data when nâ =â 500. (DOCX 18 kb)
Theory of semiconductor quantum-wire based single- and two-qubit gates
Creators: name: Zibold, Tobias
name: Vogl, Peter
name: Bertoni, Andrea
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A GaAs/AlGaAs based two-qubit quantum device that allows the controlled generation and straightforward detection of entanglement by measuring a stationary current-voltage characteristic is proposed. We have developed a two-particle Green's function method of open systems and calculate the properties of three-dimensional interacting entangled systems non-perturbatively. We present concrete device designs and detailed, charge self-consistent predictions. One of the qubits is an all-electric Mach-Zehnder interferometer that consists of two electrostatically defined quantum wires with coupling windows, whereas the second qubit is an electrostatically defined double quantum dot located in a second two-dimensional electron gas beneath the quantum wires. We find that the entanglement of the device can be controlled externally by tuning the tunneling coupling between the two quantum dots.
description: 16 pages, 13 figures, RevTex4 two-column format, to appear in Phys. Rev. B
Trapping of HII regions in Population III star formation
Creators: name: Jaura, Ondrej
name: Glover, Simon C. O.
name: Wollenberg, Katharina M. J.
name: Klessen, Ralf S.
name: Geen, Sam
name: Haemmerlé, Lionel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Radiative feedback from massive Population III (Pop III) stars in the form of ionising and photodissociating photons is widely believed to play a central role in shutting off accretion onto these stars. Understanding whether and how this occurs is vital for predicting the final masses reached by these stars and the form of the Pop III stellar initial mass function. To help us better understand the impact of UV radiation from massive Pop III stars on the gas surrounding them, we carry out high resolution simulations of the formation and early evolution of these stars, using the AREPO moving-mesh code coupled with the innovative radiative transfer module SPRAI. Contrary to most previous results, we find that the ionising radiation from these stars is trapped in the dense accretion disk surrounding them. Consequently, the inclusion of radiative feedback has no significant impact on either the number or the total mass of protostars formed during the 20 kyr period that we simulate. We show that the reason that we obtain qualitatively different results from previous studies of Pop III stellar feedback lies in how the radiation is injected into the simulation. HII region trapping only occurs if the photons are injected on scales smaller than the local scale height of the accretion disk, a criterion not fulfilled in previous 3D simulations of this process. Finally, we speculate as to whether outflows driven by the magnetic field or by Lyman-alpha radiation pressure may be able to clear enough gas away from the star to allow the HII region to escape from the disk.
description: 22 pages, 20 figures, 4 tables. Accepted by MNRAS
When Does the Lorenz 1963 Model Exhibit the Signal‐To‐Noise Paradox?
Creators: name: Mayer, Björn
name: Düsterhus, André
name: Baehr, Johanna
Publisher: name: FID GEO
Year: 2021

description: Seasonal prediction systems based on Earth System Models exhibit a lower proportion of predictable signal to unpredictable noise than the actual world. This puzzling phenomena has been widely referred to as the signal‐to‐noise paradox (SNP). Here, we investigate the SNP in a conceptual framework of a seasonal prediction system based on the Lorenz, 1963 Model (L63). We show that the SNP is not apparent in L63, if the uncertainty assumed for the initialization of the ensemble is equal to the uncertainty in the starting conditions. However, if the uncertainty in the initialization overestimates the uncertainty in the starting conditions, the SNP is apparent. In these experiments the metric used to quantify the SNP also shows a clear lead‐time dependency on subseasonal timescales. We therefore, formulate the alternative hypothesis to previous studies that the SNP could also be related to the magnitude of the initial ensemble spread.
description: Plain Language Summary: Comprehensive Earth System Models seem to be better at predicting the real observed climate system than expected based on their ability to predict their own modelled climate system. This puzzling phenomena is known as the signal‐to‐noise paradox (SNP) and its origin is still under intensive scientific debate with some studies pointing to deficiencies in the model formulation. In this study we investigate under which conditions the SNP can be obtained using a simple conceptual framework for a climate prediction system based on a simple dynamical model. Our results show that the SNP can be reproduced in the absence of model deficiencies if the model overestimates the observational uncertainty. We also investigate the development of the SNP on subseasonal timescales and find a clear dependency on the lead‐time of the prediction. Our results lead us to formulate an alternative hypothesis to previous studies on the origin of the SNP.
description: Key Points: Whether forecasts in the Lorenz Model are reliable or not depends on the ratio of initial ensemble spread to observational uncertainty Until predictability is lost in the Lorenz Model the level of over‐or underconfidence increases with increasing lead‐time
description: Copernicus Climate Change Service
description: Marine Institute and the European Regional Development fund
description: Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
How do secondary iron enrichments form within basaltic eucrites? An experimental approach
Creators: name: Rombeck, Stella
name: Vollmer, Christian
name: Roszjar, Julia
name: Sarafian, Adam R.
name: Klemme, Stephan
Publisher: name: FID GEO
Year: 2021

description: Some basaltic eucrites and basaltic lithologies in howardites derived from the asteroid 4 Vesta exhibit unusual secondary veinlet textures consisting mostly of fayalitic olivine and Fe‐enrichments within pyroxenes. Recent studies discussed the formation of these Fe‐rich phases either by interaction with a vapor and/or liquid phase (metasomatism), or by a high‐temperature melting process. We therefore performed a series of heating and hydrothermal experiments with liquids of different compositions on natural pyroxene crystals (augite and orthopyroxene) to evaluate these contrasting hypotheses. The results of the heating experiments show that incongruent melting of pyroxenes at about 1070 °C causes textures that are very similar to those observed in the meteorites. We conclude that a part of the natural secondary veins might be explained by heating processes at similar temperatures. The hydrothermal experiments with aqueous liquids of different Fe‐enriched compositions clearly indicate ion exchange reactions resulting in partial Fe‐enrichments of the pyroxene. Interestingly, these Fe‐enrichments occurred independent of the Fe content of the liquid, which can be explained by an internal origin of Fe from the pyroxenes. In one hydrothermal experiment of augite with Fe‐oxalate solution, deposition of fayalitic olivine was observed. From our experimental observations, we conclude that aqueous liquids are plausible candidates for explaining the deposition of Fe‐enrichments and fayalitic olivine inside the fractures of pyroxene. However, we cannot rule out a high‐temperature melting process slightly above the peritectic point of pyroxene to explain a fraction of observed secondary Fe‐enrichments.
description: NASA Jenkins graduate fellowship
description: Heitfeld Foundation
On the failure of the Poincaré Lemma for de-bar-sub-M II
Creators: name: Hill, C. Denson
name: Nacinovich, Mauro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32V05 35N15

description: We obtain very sharp results about the lack of validity of the Poincare lemma for the tangential Cauchy Riemann equations, acting on tangential forms, tangential to a CR manifold M of general CR dimension n, and general CR codimension k. This generalizes the classical nonsolvability example of H. Lewy. We also discuss the CR structure on the characteristic bundle to M, due to certain degeneracies in the Levi form. A number of naturally geometrically occuring examples are given.
Aquatic and terrestrial proxy evidence for Middle Pleistocene palaeolake and lake‐shore development at two Lower Palaeolithic sites of Schöningen, Germany
Creators: name: Krahn, Kim J.
name: Tucci, Mario
name: Urban, Brigitte
name: Pilgrim, Julien
name: Frenzel, Peter
name: Soulié‐Märsche, Ingeborg
name: Schwalb, Antje
Publisher: name: FID GEO
Year: 2021

description: The archaeological sites in the open‐cast mine of Schöningen, Germany, represent outstanding archives for understanding Middle Pleistocene interglacial–glacial transitions and human adaption. Aquatic microfossil and pollen assemblages from the ‘Reinsdorf sequence’, likely correlated to Marine Isotope Stage 9, document environmental changes from a thermal maximum to succeeding glacial conditions recorded in two sequences of excavation sites 12 II and 13 II. Multi‐proxy analyses enable detailed reconstruction of lake‐shore and landscape developments despite variable microfossil preservation in changing carbonate‐ and organic‐rich deposits. Rich aquatic vegetation with abundant charophytes suggests repeated phases with water depths of 0.5–2 m at site 13 II, while even greater temporary depths are deduced for 12 II DB. Mesorheophilic and mesotitanophilic ostracod species indicate stream inflows with medium–low calcium contents of >18 mg Ca L–1 originating from nearby springs. Diatoms point to meso‐eutrophic conditions and an alkaline pH of the lake water. Interglacial conditions with thermophile forests but no aquatic microfossils preserved, suggesting a dry or only temporarily flooded site, mark the beginning of the sequence. Continuous presence of aquatic organisms and overall dominance of small tychoplanktonic diatoms during a subsequent cool steppe phase provide evidence for increased water depths and unstable habitats characterized by erosion and probably prolonged periods of lake ice cover. During the succeeding boreal forest‐steppe phase, surface runoff into the productive, shallow lake decreased due to a more extensive vegetation cover. Concurrently, intensified groundwater input in contact with the nearby salt wall caused elevated salinities. Following a lake level drop, stream inflows and lake levels increased again towards the end of the Reinsdorf sequence and promoted development of a diverse fauna and flora at the lake shore; thereby maintaining an attractive living and hunting environment for early humans during a phase of generally cooler temperatures and landscape instability at the transition into a glacial period.
description: Niedersächsisches Ministerium für Wissenschaft und Kultur http://dx.doi.org/10.13039/501100010570
description: Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659
Geometry in transition: A model of emergent geometry
Creators: name: Delgadillo-Blando, Rodrigo
name: O'Connor, Denjoe
name: Ydri, Badis
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a three matrix model with global SO(3) symmetry containing at most quartic powers of the matrices. We find an exotic line of discontinuous transitions with a jump in the entropy, characteristic of a 1st order transition, yet with divergent critical fluctuations and a divergent specific heat with critical exponent $α=1/2$. The low temperature phase is a geometrical one with gauge fields fluctuating on a round sphere. As the temperature increased the sphere evaporates in a transition to a pure matrix phase with no background geometrical structure. Both the geometry and gauge fields are determined dynamically. It is not difficult to invent higher dimensional models with essentially similar phenomenology. The model presents an appealing picture of a geometrical phase emerging as the system cools and suggests a scenario for the emergence of geometry in the early universe.
description: 6 pages, 4 figures
A set-theoretical approach for ABox reasoning services (Extended Version)
Creators: name: Cantone, Domenico
name: Nicolosi-Asmundo, Marianna
name: Santamaria, Daniele Francesco
Publisher: name: arXiv
Year: 2017
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: In this paper we consider the most common ABox reasoning services for the description logic $\mathcal{DL}\langle \mathsf{4LQS^{R,\!\times}}\rangle(\mathbf{D})$ ($\mathcal{DL}_{\mathbf{D}}^{4,\!\times}$, for short) and prove their decidability via a reduction to the satisfiability problem for the set-theoretic fragment \flqsr. The description logic $\mathcal{DL}_{\mathbf{D}}^{4,\!\times}$ is very expressive, as it admits various concept and role constructs, and data types, that allow one to represent rule-based languages such as SWRL. Decidability results are achieved by defining a generalization of the conjunctive query answering problem, called HOCQA (Higher Order Conjunctive Query Answering), that can be instantiated to the most wide\-spread ABox reasoning tasks. We also present a \ke\space based procedure for calculating the answer set from $\mathcal{DL}_{\mathbf{D}}^{4,\!\times}$ knowledge bases and higher order $\mathcal{DL}_{\mathbf{D}}^{4,\!\times}$ conjunctive queries, thus providing means for reasoning on several well-known ABox reasoning tasks. Our calculus extends a previously introduced \ke\space based decision procedure for the CQA problem.
description: 27 pages. Extended version for RR 2017. arXiv admin note: text overlap with arXiv:1606.07337
From Re-Construction to Co-Production: remembering and restaging past participatory exhibitions
Creators: name: Dudley, Laura E.
Publisher: name: University of Leicester
Year: 2024
Subjects: Uncategorized

description: In the context of an increasing emphasis on co-production within museum and gallery practice, this research project asks: can the history of participatory art exhibitions lend insight into present practices, and conversely, how can the process of restaging embed the active participation of the public.
I will focus particularly on landmark exhibitions which, in their original form, had a significant participatory element. My contention is that the restaging of these exhibitions, realized as part of temporary exhibition programmes and motivated by art historical interests, do not yet have a lasting impact on the practices of the museums and galleries. Importantly, neither has re-staging impacted how participatory exhibitions are art-historically valued, particularly in relationship to the public perspective or experience of participation. Considering these as lost opportunities, the project aims to approach past exhibitions not only through the lens of Exhibition History but also through their potential to inform, and be informed by, models and frameworks for participation and co-production.
Within current museum practice, an interest in participation is evidenced through a broad adoption of the term co-production. This term is increasingly used to describe public involvement in both design processes and the realization of exhibitions and programmes. This research aims to establish how the restaging as a form of re-activation of historical exhibitions might also act as a vehicle for public involvement in the authorship of an artwork. This will impact conventional attitudes towards archiving and documenting the process of restaging to prioritise the public perspective, and challenge our understanding of, and propose a checklist of methods to allow public involvement and co-production in the re-activation and re-interpretation of Exhibition History.
A C++ reasoner for the description logic $\mathcal{DL}_{\mathbf{D}}^{4,\!\times}$ (Extended Version)
Creators: name: Cantone, Domenico
name: Nicolosi-Asmundo, Marianna
name: Santamaria, Daniele Francesco
Publisher: name: arXiv
Year: 2017
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We present an ongoing implementation of a KE-tableau based reasoner for a decidable fragment of stratified elementary set theory expressing the description logic $\mathcal{DL}\langle \mathsf{4LQS^{R,\!\times}}\rangle(\mathbf{D})$ (shortly $\mathcal{DL}_{\mathbf{D}}^{4,\!\times}$). The reasoner checks the consistency of $\mathcal{DL}_{\mathbf{D}}^{4,\!\times}$-knowledge bases (KBs) represented in set-theoretic terms. It is implemented in \textsf{C++} and supports $\mathcal{DL}_{\mathbf{D}}^{4,\!\times}$-KBs serialized in the OWL/XML format. To the best of our knowledge, this is the first attempt to implement a reasoner for the consistency checking of a description logic represented via a fragment of set theory that can also classify standard OWL ontologies.
description: Please cite https://www.scopus.com/record/display.uri?eid=2-s2.0-85031922356&origin=resultslist. arXiv admin note: text overlap with arXiv:1702.03096
Additional file 2: of Chloroquine reduces hypercoagulability in pancreatic cancer through inhibition of neutrophil extracellular traps
Creators: name: Boone, Brian
name: Pranav Murthy
name: Miller-Ocuin, Jennifer
name: W. Doerfler
name: Ellis, Jarrod
name: Xiaoyan Liang
name: Ross, Mark
name: Callen Wallace
name: Sperry, Jason
name: Lotze, Michael
name: Neal, Matthew
name: Zeh, Herbert
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology

description: Figure S2. Neutrophil Extracellular Traps (NETs) promote platelet activation in murine pancreatic adenocarcinoma. Platelet activation was assessed by measuring % CD62P positive cells by flow cytometry. Tumor burdened mice had heightened platelet activation compared to sham controls (A). PAD4 KO mice, unable to form NETs had diminished platelet activation. Addition of NET supernatant to murine whole blood increased platelet activation in a dose dependent fashion (B). Chloroquine treatment reversed the tumor associated increase in platelet activation (C). (DOCX 109 kb)
Detailed Balance of Thermalization dynamics in Rydberg atom quantum simulators
Creators: name: Kim, Hyosub
name: Park, Yeje
name: Kim, Kyungtae
name: Sim, H. -S.
name: Ahn, Jaewook
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Dynamics of large complex systems, such as relaxation towards equilibrium in classical statistical mechanics, often obeys a master equation. The equation significantly simplifies the complexities but describes essential information of occupation probabilities. A related fundamental question is the thermalization, a coherent evolution of an isolated many-body quantum state into a state that seems to be in thermal equilibrium. It is valuable to find an effective equation describing this complex dynamics. Here, we experimentally investigate the question by observing sudden quench dynamics of quantum Ising-like models implemented in our quantum simulator, defect-free single-atom tweezers in conjunction with Rydberg atom interaction. We find that saturation of local observables, a thermalization signature, obeys a master equation experimentally constructed by time-resolved monitoring the occupation probabilities of prequench states and imposing the principle of the detailed balance. Our experiment agrees with theories, and demonstrates the detailed balance in a thermalization dynamics that does not require coupling to baths or postulated randomness.
description: 8 pages, 12 figures
OGLE-II High Proper Motion Stars towards the Galactic centre
Creators: name: Rattenbury, Nicholas J.
name: Mao, Shude
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The photometry data base of the second phase of the OGLE microlensing experiment, OGLE-II, is a rich source of information about the kinematics and structure of the Galaxy. In this work we use the OGLE-II proper motion catalogue to identify candidate stars which have high proper motions. 521 stars with proper motion mu > 50 mas/yr in the OGLE-II proper motion catalogue (Sumi 2004) were cross-identified with stars in the MACHO high proper motion catalogue, and the DENIS and 2MASS infra-red photometry catalogues. Photometric distances were computed for stars with colours consistent with G/K and M type stars. 6 stars were newly identified as possible nearby (< 50 pc) M dwarfs.
description: 7 figures and 4 tables, MNRAS, accepted
Modeling urban regions: Comparing random forest and support vector machines for cellular automata
Creators: name: Rienow, Andreas
name: Mustafa, Ahmed
name: Krelaus, Leonie
name: Lindner, Claudia
Publisher: name: FID GEO
Year: 2021

description: Cellular automat​on (CA) are important tools that provide insight into urbanization dynamics and possible future patterns. The calibration process is the core theme of these models. This study compares the performance of two common machine‐learning classifiers, random forest (RF), and support vector machines (SVM), to calibrate CA. It focuses on the sensitivity analysis of the sample size and the number of input variables for each classifier. We applied the models to the Wallonia region (Belgium) as a case study to demonstrate the performance of each classifier. The results highlight that RF produces a land‐use pattern that simulates the observed pattern more precisely than SVM especially with a low sample size, which is important for study areas with low levels of land‐use change. Although zoning information notably enhances the accuracy of SVM‐based probability maps, zoning marginally influences the RF‐derived probability maps. In the case of the SVM, the CA model did not significantly improve due to the increased sample size. The performance of the 5,000 sample size was observed to be better than the 15,000 sample size. The RF‐driven CA had the best performance with a high sample, while zoning information was excluded.
description: US National Science Foundation http://dx.doi.org/10.13039/100000001