cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Robustness of key features of loop quantum cosmology
Creators: name: Ashtekar, Abhay
name: Corichi, Alejandro
name: Singh, Parampreet
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Loop quantum cosmology of the k=0 FRW model (with a massless scalar field) is shown to be exactly soluble if the scalar field is used as the internal time already in the classical Hamiltonian theory. Analytical methods are then used i) to show that the quantum bounce is generic; ii) to establish that the matter density has an absolute upper bound which, furthermore, equals the critical density that first emerged in numerical simulations and effective equations; iii) to bring out the precise sense in which the Wheeler DeWitt theory approximates loop quantum cosmology and the sense in which this approximation fails; and iv) to show that discreteness underlying LQC is fundamental. Finally, the model is compared to analogous discussions in the literature and it is pointed out that some of their expectations do not survive a more careful examination. An effort has been made to make the underlying structure transparent also to those who are not familiar with details of loop quantum gravity.
description: Two changes from the published version: (1) Use of the scalar field clock already in the classical theory leads to a soluble model without any assumptions. sLQC now stands for soluble (rather than simplified) LQC; (2) Some intermediate steps corrected, thanks to a comment by Prof. Ian Lawrie. This also simplified the analysis. Final results unchanged.
A statistical study of the optical spectral variability in gamma-ray blazars
Creators: name: Otero-Santos, J.
name: Acosta-Pulido, J. A.
name: González, J. Becerra
name: Luashvili, A.
name: Segura, N. Castro
name: González-Martín, O.
name: Raiteri, C. M.
name: Carnerero, M. I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Blazars optical emission is generally dominated by relativistic jets, although the host galaxy, accretion disk and broad line region (BLR) may also contribute significantly. Disentangling their contributions has been challenging for years due to the dominance of the jet. To quantify the contributions to the spectral variability, we use the statistical technique for dimensionality reduction Non-Negative Matrix Factorization on a spectroscopic data set of 26 $γ$-ray blazars. This technique allows to model large numbers of spectra in terms of a reduced number of components.We use a priori knowledge to obtain components associated to meaningful physical processes. The sources are classified according to their optical spectrum as host-galaxy dominated BL Lac objects (BL Lacs), BL Lacs, or Flat Spectrum Radio Quasars (FSRQs). Host-galaxy sources show less variability, as expected, and bluer-when-brighter trends, as the other BL Lacs. For FSRQs, more complicated colour-flux behaviours are observed: redder-when-brighter for low states saturating above a certain level and, in some cases, turning to bluer-when-brighter. We are able to reproduce the variability observed during 10 years using only 2 to 4 components, depending on the type. The simplest scenario corresponds to host-galaxy blazars, whose spectra are reconstructed using the stellar population and a power law for the jet. BL Lac spectra are reproduced using from 2 to 4 power laws. Different components can be associated to acceleration/cooling processes taking place in the jet. The reconstruction of FSRQs also incorporates a QSO-like component to account for the BLR, plus a very steep power law, associated to the accretion disk.
description: Accepted for publication in MNRAS
Additional file 1: of Resource allocation in NHS dentistry: recognition of societal preferences (RAINDROP): study protocol
Creators: name: Vernazza, Christopher
name: Carr, Katherine
name: Wildman, John
name: Gray, Joanne
name: Holmes, Richard
name: Exley, Catherine
name: Smith, Robert
name: Donaldson, Cam
Publisher: name: figshare
Year: 2018
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Topic Guide for Workstream 1, Phase 1 Interviews. Draft topic guide for pre-PBMA interviews with dental commissioners. (DOCX 21 kb)
Faithful Effective-One-Body waveforms of equal-mass coalescing black-hole binaries
Creators: name: Damour, Thibault
name: Nagar, Alessandro
name: Dorband, Ernst Nils
name: Pollney, Denis
name: Rezzolla, Luciano
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We continue the program of constructing, within the Effective-One-Body (EOB) approach, high-accuracy analytic waveforms describing the signal emitted by inspiralling and coalescing black hole binaries. Here, we compare a recently derived, resummed 3 PN-accurate EOB quadrupolar waveform to the results of a numerical simulation of the inspiral and merger of an equal-mass black hole binary. We find a remarkable agreement, both in phase and in amplitude, with a maximal dephasing which can be reduced below $\pm 0.005$ gravitational-wave (GW) cycles over 12 GW cycles corresponding to the end of the inspiral, the plunge, the merger and the beginning of the ringdown. This level of agreement is shown for two different values of the effective 4 PN parameter a_5, and for corresponding, appropriately "flexed" values of the radiation-reaction resummation parameter v_pole. In addition, our resummed EOB amplitude agrees to better than the 1% level with the numerical-relativity one up to the late inspiral. These results, together with other recent work on the EOB-numerical-relativity comparison, confirm the ability of the EOB formalism to faithfully capture the general relativistic waveforms.
description: 13 pages, 3 figures. Small changes. Version published in Phys. Rev. D
Nuclear structure investigation of even-even and odd Pb isotopes by using the Hartree-Fock-Bogoliubov method
Creators: name: Bassem, Younes El
name: Oulne, Mustapha
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The nuclear structure of even-even and odd lead isotopes (178-236 Pb) is investigated within the Hartree-Fock-Bogoliubov theory. Calculations are performed for a wide range of neutron numbers, starting from the proton-rich side up to the neutron-rich side, by using the SLy4 Skyrme interaction and a new proposed formula for the pairing strength which is more precise for this region of nuclei as we did in previous works in the regions of Neodymium (Nd, Z=60) [Int. J. Mod. Phys. E 24, 1550073 (2015)] and Molybdenum (Mo, Z=42) [Nuc. Phys. A 957 22-32 (2017)]. Such a new pairing strength formula allows reaching exotic nuclei region where the experimental data are not available. Calculated values of various physical quantities such as binding energy, two-neutron separation energy, quadrupole deformation, and rms-radii for protons and neutrons are discussed and compared with experimental data and some estimates of other nuclear models like Finite Range Droplet Model (FRDM), Relativistic Mean Field (RMF) model with NL3 functional (NL3), Density-Dependent Meson-Exchange Relativistic Energy Functional (DD-ME2) and results of Hartree-Fock-Bogoliubov calculations based on the D1S Gogny effective nucleon-nucleon interaction (Gogny D1S).
description: 16 pages, 7 figures. arXiv admin note: text overlap with arXiv:1607.06941; text overlap with arXiv:1210.1825 by other authors
title: ADCO, Cartulaire de Cîteaux pour les possessions de Saulon-la-Chapelle et Saulon-la-Rue, Fénay, Noiron et la rivière Cent-fonds (XVe siècle), Cart. 179 (11 H 1075), 70 folios, f. 0035
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
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Cartulaire de Cîteaux pour les possessions de Saulon-la-Chapelle et Saulon-la-Rue, Fénay, Noiron et la rivière Cent-fonds (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 179 (11 H 1075), 70 folios, f. 0035, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Saulon-la-Chapelle et Saulon-la-Rue, Fénay, Noiron et la rivière Cent-fonds (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 179 (11 H 1075), 70 folios, f. 0035, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Markov Chain Methods For Analyzing Complex Transport Networks
Creators: name: Volchenkov, D.
name: Blanchard, Ph.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We have developed a steady state theory of complex transport networks used to model the flow of commodity, information, viruses, opinions, or traffic. Our approach is based on the use of the Markov chains defined on the graph representations of transport networks allowing for the effective network design, network performance evaluation, embedding, partitioning, and network fault tolerance analysis. Random walks embed graphs into Euclidean space in which distances and angles acquire a clear statistical interpretation. Being defined on the dual graph representations of transport networks random walks describe the equilibrium configurations of not random commodity flows on primary graphs. This theory unifies many network concepts into one framework and can also be elegantly extended to describe networks represented by directed graphs and multiple interacting networks.
description: 26 pages, 4 figures
Additional file 1: of Aggression Following Traumatic brain injury: Effectiveness of Risperidone (AFTER): study protocol for a feasibility randomised controlled trial
Creators: name: Shoumitro Deb
name: Leeson, Verity
name: Aimola, Lina
name: Mayur Bodani
name: Li, Lucia
name: Weaver, Tim
name: Sharp, David
name: Crawford, Mike
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Neuroscience
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: SPIRIT Checklist. (DOC 121 kb)
Estimating the Feasibility of 21cm-Ly$α$ Synergies using the Hydrogen Epoch of Reionization Array
Creators: name: Cox, Tyler A.
name: Jacobs, Daniel C.
name: Murray, Steven G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Cross-correlating 21cm and Ly$α$ intensity maps of the Epoch of Reionization (EoR) promises to be a powerful tool for exploring the properties of the first galaxies. Next-generation intensity mapping experiments such as the Hydrogen Epoch of Reionization Array (HERA) and SPHEREx will individually probe reionization through the power spectra of the 21cm and Ly$α$ lines respectively, but will be limited by bright foregrounds and instrumental systematics. Cross-correlating these measurements could reduce systematics, potentially tightening constraints on the inferred astrophysical parameters. In this study, we present forecasts of cross-correlation taking into account the effects of exact uv-sampling and foreground filtering to estimate the feasibility of HERAxSPHEREx making a detection of the 21cm-Ly$α$ cross-power spectrum. We also project the sensitivity of a cross-power spectrum between HERA and the proposed next-generation Cosmic Dawn Intensity Mapper. By isolating the sources of uncertainty, we explore the impacts of experimental limitations such as foreground filtering and Ly$α$ thermal noise uncertainty have on making a detection of the cross-power spectrum. We then implement this strategy in a simulation of the cross-power spectrum and observational error to identify redshifts where fiducial 21cmFAST models predict the highest signal-to-noise detection ($z \sim 8$). We conclude that detection of the SPHEREx-HERA cross-correlation will require an optimistic level of 21cm foreground filtering, as well as deeper thermal noise integrations due to a lack of overlapping sensitive modes but for CDIM with its larger range of scales and lower noise forecast detection levels, may be possible even with stricter 21cm foreground filtering.
description: 11 pages, 6 figures, Accepted by MNRAS
The Optical-Radio Mapping: the kinetic efficiency of Radio-Loud AGNs
Creators: name: Shankar, Francesco
name: Cavaliere, Alfonso
name: Cirasuolo, Michele
name: Maraschi, Laura
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We constrain the mean kinetic efficiency of radio-loud active galactic nuclei by using an optically selected sample for which both the optical and the radio luminosity functions (LFs) have been determined; the former traces the bolometric luminosity L, while the latter traces the kinetic power L_k, empirically correlated to the radio emission. Thus in terms of the ratio g_k=L_k/L, we can convert the optical LF of the sample into a radio one. This computed LF is shown to match the directly observed LF for the same sample if g_k=0.10^{+0.05}_{-0.01} holds, with a scatter σ=0.38^{+0.04}_{-0.09} dex; with these values we also match a number of independent correlations between L_k, L and radio emission, that we derive through Monte Carlo simulations. We proceed to translate the value of g_k into a constraint on the kinetic efficiency for the production of radio jets or winds, namely, ε_k=L_k/(Mdot*c^2)~0.01 in terms of the rate Mdot of mass accretion onto the central black hole. Then, on assuming that on average the radio sources share the same kinetic efficiency, we compute a solid lower limit of about 25% on the contribution of radio sources to the local black hole mass density.
description: ApJ, accepted, 7 pages, 6 figures
Recycling and Burial of Biogenic Silica in an Open Margin Oxygen Minimum Zone
Creators: name: Dale, A. W.
name: Paul, K. M.
name: Clemens, D.
name: Scholz, F.
name: Schroller‐Lomnitz, U.
name: Wallmann, K.
name: Geilert, S.
name: Hensen, C.
name: Plass, A.
name: Liebetrau, V.
name: Grasse, P.
name: Sommer, S.
Publisher: name: FID GEO
Year: 2021

description: An extensive data set of biogenic silica (BSi) fluxes is presented for the Peruvian oxygen minimum zone (OMZ) at 11°S and 12°S. Each transect extends from the shelf to the upper slope (∼1,000 m) and dissects the permanently anoxic waters between ∼200 and 500 m water depth. BSi burial (2,100 mmol m−2 yr−1) and recycling fluxes (3,300 mmol m−2 yr−1) were highest on the shelf with mean preservation efficiencies (34% ± 15%) that exceed the global mean of 10%–20%. BSi preservation was highest on the inner shelf (up to 56%), decreasing to 7% and 12% under anoxic waters and below the OMZ, respectively. The data suggest that the main control on BSi preservation is the rate at which reactive BSi is transported away from undersaturated surface sediments by burial and bioturbation to the underlying saturated sediment layers where BSi dissolution is thermodynamically and/or kinetically inhibited. BSi burial across the entire Peruvian margin between 3°S to 15°S and down to 1,000 m water depth is estimated to be 0.1–0.2 Tmol yr−1; equivalent to 2%–7% of total burial on continental margins. Existing global data permit a simple relationship between BSi rain rate to the seafloor and the accumulation of unaltered BSi, giving the possibility to reconstruct rain rates and primary production from the sediment archive in addition to benthic Si turnover in global models.
description: Key Points: Biogenic silica (BSi) preservation is high on the shelf and low under predominantly anoxic bottom waters BSi burial across the Peruvian margin down to 1,000 m water depth accounts for up to 7% of the global burial on continental margins Existing global data permit a simple relationship between BSi accumulation and rain rate
description: Deutsche Forschungsgemeinschaft (DFG) http://dx.doi.org/10.13039/501100001659
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VIII, Cart. 192 (11 H 77), 295 folios, f. 0228r
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VIII, Archives départementales de la Côte-d'Or, Cart. 192 (11 H 77), 295 folios, f. 0228r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VIII, Archives départementales de la Côte-d'Or, Cart. 192 (11 H 77), 295 folios, f. 0228r, 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
Overlooked Implication of Sediment Transport at Low Flow: Migrating Ripples Modulate Streambed Phototrophic and Heterotrophic Microbial Activity
Creators: name: Scheidweiler, David
name: Mendoza‐Lera, Clara
name: Mutz, Michael
name: Risse‐Buhl, Ute
Publisher: name: FID GEO
Year: 2021

description: Sandy streambeds are mobile even at low flow velocities at which sediments can be transported as bedload, more specifically as migrating ripples. Small variations in discharge can result in transitions between sediment transport and no‐transport. Despite being inherent processes of streams and rivers, the effect of sediment transport and transport regime transition on the phototrophic and heterotrophic activity of streambed microbial communities remains unclear. We performed a microcosm experiment mimicking sediment transport as migrating ripples (i.e., migrating) and no sediment transport (i.e., stationary), and their transition to observe the response of the phototrophic and heterotrophic microbial community. Both net community production and community respiration were respectively 77% and 40% suppressed in migrating sediments compared to stationary sediments. In migrating sediments, a combination of mechanical stress, light limitation, and limited habitable area likely hampered microbial metabolism. Stationary conditions facilitated an active community of phototrophs, mainly diatoms, as indicated by high net community production, high rates of dissolved organic carbon release and silicon retention. After transitioning migrating to stationary and vice versa, differences were maintained regardless of the change in mechanical stress and associated stressors, most likely as a result of the interaction between their antecedent transport conditions and developmental stage that shaped the microbial community. Our results indicate that sediment transported as migrating ripples at low flow velocity can strongly modulate streambed metabolism, and discharge oscillations resulting in sediment transport transitions will result in a mosaic of microbial activity and biomass that will emerge at larger scales determining reach‐scale metabolism.
description: Key Points: A microcosm approach was used to identify the effect of ripple migration on the metabolism and composition of microbial communities. Migrating ripples hampered the phototrophic and heterotrophic community respiration, net production, and composition. The influence of transition from (to) migrating ripple to (from) stationary sediment was modulated by community developmental stage.
description: Deutsche Forschungsgemeinschaft (DFG) http://dx.doi.org/10.13039/501100001659
description: Basque Country Government
description: Deutsche Forschungsgemeinschaft (DFG) http://dx.doi.org/10.13039/501100001659
X-ray and IR Point Source Identification and Characteristics in the Embedded, Massive Star-Forming Region RCW 108
Creators: name: Wolk, Scott J.
name: Spitzbart, Bradley D.
name: Bourke, Tyler L.
name: Gutermuth, Robert A.
name: Vigil, Miquela
name: Comerón, Fernando
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the results of an approximately 90 ks Chandra observation of a complex region that hosts multiple sites of recent and active star formation in ARA OB1a. The field is centered on the embedded cluster RCW 108-IR and includes and a large portion of the open cluster NGC 6193. We detect over 420 X-ray sources in the field and combined these data with deep near-IR, Spitzer/IRAC and MSX mid-IR data. We find about 360 of the X-ray sources have near--IR counterparts. We divide the region into 5 parts based on the X-ray point source characteristics and extended 8 micron emission. The most clearly defined regions are the central region - identified by embedded sources with high luminosities in the both the near-IR and X-ray as well as high X-ray temperatures (about 3 keV) and the eastern region - identified by low extinction and 1 keV X-ray temperatures. Other regions, identified by their directional relationship to RCW 108-IR are less uniform - representing combinations of the first two regions, independent star formation epochs, or both. Over 18% percent of the cluster members with over 100 counts exhibit flares. Overall about 50% of the stars appear to have optically thick disks when IRAC data are employed. The largest fraction of X-ray sources are best described as possessing some disk material via a more detailed extinction fitting. We estimate that the total number of pre--main sequence stars in the field is about 1600. Approximately 800 are confined to (1.1 pc) central region.
description: 63 pages including 18 figures, and 15 tables. Tables 1,2,5,7,10,and 11 have been stubbed in the text and included as ancillary files. Accepted by the Astronomical Journal
Additional file 1: of Glycation marker glucosepane increases with the progression of osteoarthritis and correlates with morphological and functional changes of cartilage in vivo
Creators: name: Legrand, Catherine
name: Ahmed, Usman
name: Attia Anwar
name: Rajpoot, Kashif
name: Pasha, Sabah
name: CĂŠcile Lambert
name: Davidson, Rose
name: Clark, Ian
name: Thornalley, Paul
name: Henrotin, Yves
name: Rabbani, Naila
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified

description: Supplementary text: description of measurement and outcome of guinea pig food consumption. Figure S1. (a) MACH-1 mechanical testing system. (b) View of a guinea pig femoral condyle with a position grid superimposed; Figure S2. Body weight of guinea pigs during the study. Figure S3. Partial least squares (PLS) regression model of serum glycated, oxidized, and nitrated amino acids Hyp and CP on total OA histological score. Table S1. Serum glycated, oxidized, nitrated, and citrullinated protein in the guinea pig model of osteoarthritis; Table S2. Correlation between glycation, oxidation, and nitration free adducts and hydroxyproline. Table S3. Correlations between glycated, oxidized, nitrated, and citrullinated serum protein. Table S4. Confusion matrix and nCorrect. (DOCX 735 kb)
Muntz type Theorems I
Creators: name: Almira, J. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: In this paper, we concentrate our attention on the Muntz problem in the univariate setting and for the uniform norm.
description: Paper accepted for publication in Surveys in Approximation Theory
Przekształcenia środowiska przyrodniczego na skutek działalności przemysłu - spojrzenie biologa
Creators: name: A. Kompała-Bąba
name: Sierka, Edyta
Publisher: name: Zenodo
Year: 2006

description: Proposals for practical activities in the are of environmental protection to be realized in areas related to direct and indirect impact of various branches of industry, are presented in the paper. Their objectives is to familiarize students with numerous forms of environmental devastation, methods of post-industrial areas reclamation, especially with the role of spontaneous succession. Furthermore, students have an opportunity to assess the effectiveness of reclamation efforts and to discuss the importance of post-industrial areas for biodiversity preservation.
Orbital selectivity enhanced by nematic order in FeSe
Creators: name: Yu, Rong
name: Zhu, Jian-Xin
name: Si, Qimiao
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by the recent low-tempearture experiments on bulk FeSe, we study the electron correlation effects in a multiorbital model for this compound in the nematic phase using the U(1) slave-spin theory. We find that a finite nematic order helps to stabilize an orbital selective Mott phase. Moreover, we propose that when the d- and s-wave bond nematic orders are combined with the ferro-orbital order, there exists a surprisingly large orbital selectivity between the xz and yz orbitals even though the associated band splitting is relatively small. Our results explain the seemingly unusual observation of strong orbital selectivity in the nematic phase of FeSe, and uncover new clues on the nature of the nematic order, and sets the stage to elucidate the interplay between superconductivity and nematicity in iron-based superconductors.
description: 4 pages, 4 figures with 5 pages, 5 figures in supplementary material, published version
Additional file 10: of Transcriptional profiling and biomarker identification reveal tissue specific effects of expanded ataxin-3 in a spinocerebellar ataxia type 3 mouse model
Creators: name: Toonen, Lodewijk
name: Overzier, Maurice
name: Evers, Melvin
name: Leon, Leticia
name: Zeeuw, Sander Van Der
name: Hailiang Mei
name: Kielbasa, Szymon
name: Goeman, Jelle
name: Hettne, Kristina
name: Olafur Magnusson
name: Poirel, Marion
name: Seyer, Alexandre
name: Hoen, Peter
name: Roon-Mom, Willeke Van
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: Table S2. Lipid classes altered at 4, 12 and 16Â months in SCA3 mice. Only lipid classes with at least one significantly altered unique lipid at any time are shown. (DOCX 14 kb)
O'G'UZ SHEVALARIDA YORDAMCHI SO'Z TURKUMLARINI QO'LLANILISHI
Creators: name: Palvonnazarova, Hayotxon
name: Shamuratova, Sunajon
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqola O‘g‘uz shevalarida yordamchi so‘z turkumlarining qo‘llanishi haqida ma’lumot beradi. Maqolada adabiy til va she’va munosabatlarini yordamchi so‘zlar bilan bog‘lab, qanday farqlarga ega ekanligini aniqladik. Shevalarni o‘rganish va tadqiq qilish hozirgi kunda ham muhim masala hisoblanadi.
Additional file 4: 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: Space Science
subject: Medicine
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: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Table S1. Select results of randomized trial of potentially resectable pancreatic cancer patients treated with preoperative gemcitabine/nab-paclitaxel with and without hydroxychloroquine (HCQ). There were no significant differences in pretreatment patient demographics or characteristics. Correlative markers of NET formation including circulating levels of DNA and tissue factor were also assessed as discussed in the manuscript. Pre-tx = Pre-treatment, CCI=Charlson Comorbidity Index, EUS = Endoscopic ultrasound. (DOCX 15 kb)
Group Theoretical Construction of Nucleon Operators using All-to-All Quark Propagators
Creators: name: Edwards, R. G.
name: Fleming, G. T.
name: Joo, B.
name: Juge, K. J.
name: Lichtl, A.
name: Morningstar, C. J.
name: Richards, D. G.
name: Wallace, S. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We describe a method to construct irreducible baryon operators using all-to-all quark propagators. It was demonstrated earlier that a large basis of extended baryon operators on anisotropic, quenched lattices can be used to reliably extract the masses of 5 or more excited states in the nucleon channel. All-to-all quark propagators are expected to be needed when studying these excited states on light, dynamical configurations because contributions from multi-particle states are expected to be significant. The dilution method is used to approximate the all-to-all quark propagators. Low-lying eigenmodes can also be used if necessary. For efficient computation of matrix elements of the interpolating operators, the algorithms should exploit the fact that many extended baryon operators can be obtained from the different linear combinations of three-quark colour-singlet operators. The sparseness of the diluted noise vectors also afford several computation simplifications. Some preliminary results are presented for nucleon effective masses.
description: 7 pages, 6 figures, talk presented at the XXV International Symposium on Lattice Field Theory, July 30 - August 4, 2007, Regensburg, Germany
Late Pleistocene to Holocene vegetation and climate changes in northwestern Chukotka (Far East Russia) deduced from lakes Ilirney and Rauchuagytgyn pollen records
Creators: name: Andreev, Andrei A.
name: Raschke, Elena
name: Biskaborn, Boris K.
name: Vyse, Stuart A.
name: Courtin, Jeremy
name: Böhmer, Thomas
name: Stoof‐Leichsenring, Kathleen
name: Kruse, Stefan
name: Pestryakova, Lyudmila A.
name: Herzschuh, Ulrike
Publisher: name: FID GEO
Year: 2021

description: This paper presents two new pollen records and quantitative climate reconstructions from northern Chukotka documenting environmental changes over the last 27.9 ka. Open tundra‐ and steppe‐like habitats dominated between 27.9 and 18.7 cal. ka BP. Betula and Alnus shrubs might have grown in sheltered microhabitats but disappeared after 18.7 cal. ka BP. Although the climate was rather harsh, local herb‐dominated communities supported herbivores as is evident by the presence of coprophilous spores in the sediments. The increase in Salix and Cyperaceae ~16.1 cal. ka BP suggests climate amelioration. Shrub Betula appeared ~15.9 cal. ka BP, and became dominant after ~15.52 cal. ka BP, whilst typical steppe communities drastically reduced. Very high presence of Botryococcus in the Lateglacial sediments reflects widespread shallow habitats, probably due to lake level increase. Shrub Alnus became common after ~13 cal. ka BP reflecting further climate amelioration. Simultaneously, herb communities gradually decreased in the vegetation reaching a minimum ~11.8 cal. ka BP. A gradual decrease of algae remains suggests a reduction of shallow‐water habitats. Shrubby and graminoid tundra was dominant ~11.8–11.1 cal. ka BP, later Salix stands significantly decreased. The forest‐tundra ecotone established in the Early Holocene, shortly after 11.1 cal. ka BP. Low contents of green algae in the Early Holocene sediments likely reflect deeper aquatic conditions. The most favourable climate conditions were between ~10.6 and 7 cal. ka BP. Vegetation became similar to the modern after ~7 cal. ka BP but Pinus pumila came to the Ilirney area at about 1.2 cal. ka BP. It is important to emphasize that the study area provided refugia for Betula and Alnus during MIS 2. It is also notable that our records do not reflect evidence of Younger Dryas cooling, which is inconsistent with some regional environmental records but in good accordance with some others.
description: European Research Council
IRIS Observations of Spicules and Structures Near the Solar Limb
Creators: name: Alissandrakis, C. E.
name: Vial, J. -C.
name: Koukras, A.
name: Buchlin, E.
name: Chane-Yook, M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have analyzed IRIS spectral and slit-jaw observations of a quiet region near the South Pole. In this article we present an overview of the observations, the corrections, and the absolute calibration of the intensity. We focus on the average profiles of strong (Mg ii h and k, C ii and Si iv), as well as of weak spectral lines in the near ultraviolet (NUV) and the far ultraviolet (FUV), including the Mg ii triplet, thus probing the solar atmosphere from the low chromosphere to the transition region. We give the radial variation of bulk spectral parameters as well as line ratios and turbulent velocities. We present measurements of the formation height in lines and in the NUV continuum, from which we find a linear relationship between the position of the limb and the intensity scale height. We also find that low forming lines, such as the Mg ii triplet, show no temporal variations above the limb associated with spicules, suggesting that such lines are formed in a homogeneous atmospheric layer and, possibly, that spicules are formed above the height of 2 arc sec. We discuss the spatio-temporal structure near the limb from images of intensity as a function of position and time. In these images, we identify p-mode oscillations in the cores of lines formed at low heights above the photosphere, slow moving bright features in O i and fast moving bright features in C ii. Finally, we compare the Mg ii k and h line profiles, together with intensity values of the Balmer lines from the literature, with computations from the PROM57Mg non-LTE model developed at the Institut d'Astrophysique Spatiale and estimated values of the physical parameters. We obtain electron temperatures in the range of $\sim8000$ K at small heights to $\sim20000$ K at large heights, electron densities from $1.1 \times 10^{11}$ to $4 \times 10^{10}$ cm$^{-3}$ and a turbulent velocity of $\sim24$km/s.
description: Accepted for publication in Solar Physics
D5.1 Climate Vulnerability along the Atlantic Coast
Creators: name: Goris, Nadine
name: Lauvset, Siv Kari
name: Kessler, Augustin
name: Whittle, Christo
name: Iachetti, Clara
name: Schloss, Irene
Publisher: name: Zenodo
Year: 2022

description: The main aim of task 5.1 is to identify the most immediate climate threats at ASTRAL’s aquaculture sites, and along the Atlantic coast, using a combination of in situ observations and regionally optimized satellite data products. This is of great importance to ensure the sustained productivity of ASTRAL’s IMTA value chains as climate change affects the environmental conditions at the IMTA sites, which, in turn, could affect the organisms being cultured.

Climate change-induced environmental changes may lead to an IMTA site being less optimal for the productivity of specific organisms and more optimal for other organisms. It is therefore necessary to get an overview of changes in environmental conditions over the past several decades. Using this knowledge, we can better assess which environmental variables are most vulnerable to climate change and therefore may have the greatest impact on the organisms being cultured at ASTRAL’s aquaculture sites.
Persistent Provenance of South Asian Monsoon‐Induced Silicate Weathering Over the Past 27 Million Years
Creators: name: Ali, Sajid
name: Hathorne, Ed C.
name: Frank, Martin
Publisher: name: FID GEO
Year: 2021

description: The development of the South Asian monsoon (SAM) and Himalaya‐Tibetan Plateau uplift were closely intertwined with some studies suggesting that uplift initiated the monsoon whereas others link tectonics with monsoon‐controlled exhumation. Silicate weathering controls atmospheric CO2 on geological timescales resulting in a large potential for monsoon strength and the Himalayan orogeny to influence global climate but detailed records of SAM‐induced weathering on million year (Myr) timescales are lacking. Here, we present radiogenic Sr, Nd, and Pb isotope compositions of clay minerals produced by silicate weathering and transported to the central Bay of Bengal. The radiogenic isotope data exhibit a relatively small range and demonstrate a remarkably consistent mixture of sources dominated by Himalayan rocks and the Indo‐Burman ranges, which consist of sediments derived from the Himalayas. This suggests that the spatial pattern of regional weathering, which today is highest in the regions of strongest monsoon rains, has persisted in a similar form for the last 27 Myrs. A pronounced increase in primary clay mineral abundance (from 9% to 22%) coincident with global cooling 13.9 Myrs ago points to a shift in the weathering regime given that the clay provenance did not change dramatically. Relatively weaker chemical weathering intensity during the mid and late Miocene cooling suggests increased aridity and changes in the large scale atmospheric circulation in the SAM domain. The establishment of the dry winter monsoon season during the mid and late Miocene may have caused this shift in the weathering regime and can reconcile much of the contrasting evidence for SAM initiation.
description: Key Points: Relatively stable mixture of source rocks weathered to clays over the past 27 Myrs Pronounced increase in primary clay minerals occurred 13.9 Myrs ago Shift in weathering regime possibly result of winter monsoon dry season development
Additional file 3: 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: Space Science
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Figure S3. Neutrophil and fibrinogen conjugates in the pancreatic tumor microenvironment. Pancreatic tumor specimens from resected patients with pancreatic adenocarcinoma were stained for neutrophil elastase (red) and fibrinogen (white). Representative images from three individual patients are shown, demonstrating focal areas of elastase and fibrinogen in the tumor, suggesting interactions between neutrophils and thrombosis in the tumor microenvironment. (DOCX 489 kb)
Classical and Quantum Features of the Mixmaster Singularity
Creators: name: Montani, Giovanni
name: Battisti, Marco Valerio
name: Benini, Riccardo
name: Imponente, Giovanni
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This review article is devoted to analyze the main properties characterizing the cosmological singularity associated to the homogeneous and inhomogeneous Mixmaster model. After the introduction of the main tools required to treat the cosmological issue, we review in details the main results got along the last forty years on the Mixmaster topic. We firstly assess the classical picture of the homogeneous chaotic cosmologies and, after a presentation of the canonical method for the quantization, we develop the quantum Mixmaster behavior. Finally, we extend both the classical and quantum features to the fully inhomogeneous case. Our survey analyzes the fundamental framework of the Mixmaster picture and completes it by accounting for recent and peculiar outstanding results.
description: 170 pages, 14 figures, ~500 references. Invited review paper to appear on Int. J. Mod. Phys. A. v2: minor changes, references added. v3: Conclusions added
Using Artificial Intelligence and real galaxy images to constrain parameters in galaxy formation simulations
Creators: name: Macciò, Andrea V.
name: Ali-Dib, Mohamad
name: Vulanović, Pavle
name: Noori, Hind Al
name: Walter, Fabian
name: Krieger, Nico
name: Buck, Tobias
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Cosmological galaxy formation simulations are still limited by their spatial/mass resolution and cannot model from first principles some of the processes, like star formation, that are key in driving galaxy evolution. As a consequence they still rely on a set of 'effective parameters' that try to capture the scales and the physical processes that cannot be directly resolved in the simulation. In this study we show that it is possible to use Machine Learning techniques applied to real and simulated images of galaxies to discriminate between different values of these parameters by making use of the full information content of an astronomical image instead of collapsing it into a limited set of values like size, or stellar/ gas masses. In this work we apply our method to the NIHAO simulations and the THINGS and VLA-ANGST observations of HI maps in nearby galaxies to test the ability of different values of the star formation density threshold $n$ to reproduce observed HI maps. We show that observations indicate the need for a high value of $n \gtrsim 80$ ,cm$^{-3}$ (although the exact numerical value is model-dependent), which has important consequences for the dark matter distribution in galaxies. Our study shows that with innovative methods it is possible to take full advantage of the information content of galaxy images and compare simulations and observations in an interpretable, non-parametric and quantitative manner.
description: 8 pages, 5 figures, accepted for publication on MNRAS
Grain‐Size Distribution and Propagation Effects on Seismic Signals Generated by Bedload Transport
Creators: name: Lagarde, Sophie
name: Dietze, Michael
name: Gimbert, Florent
name: Laronne, Jonathan B.
name: Turowski, Jens M.
name: Halfi, Eran
Publisher: name: FID GEO
Year: 2021

description: Bedload transport is a key process in fluvial morphodynamics, but difficult to measure. The advent of seismic monitoring techniques has provided an alternative to in‐stream monitoring, which is often costly and cannot be utilized during large floods. Seismic monitoring is a method requiring several steps to convert seismic data into bedload flux data. State‐of‐the‐art conversion approaches exploit physical models predicting the seismic signal generated by bedload transport. However, due to a lack of well‐constrained validation data, the accuracy of the resulting inversions is unknown. We use field experiments to constrain a seismic bedload model and compare the results to high‐quality independent bedload measurements. Constraining the Green's function (i.e., seismic ground properties) with an active seismic survey resulted in an average absolute difference between modeled and empirically measured seismic bedload power of 11 dB in the relevant frequency band. Using generically estimated Green's function parameters resulted in a difference of 20 dB, thus highlighting the importance of using actual field parameters. Water turbulence and grain hiding are unlikely to be the cause of differences between field observations and our analysis. Rather, they may be either due to the inverted model being particularly sensitive to the coarse tail of the grain‐size distribution, which is least well constrained from field observations, or due to the seismic model underestimating effects of the largest grains.
description: Key Points: Constrained seismic model inversion reveals dominant control of largest grain size on bedload flux estimates Measuring ground properties from a seismic experiment allows improving spectrogram fit by an order of magnitude in seismic power Considering all field‐constrained parameters results in bedload flux overestimation by two orders of magnitude
description: Israel Science Foundation (ISF) http://dx.doi.org/10.13039/501100003977
description: Israel Science Foundation (ISF) http://dx.doi.org/10.13039/501100003977
description: NSF‐BSF