cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Force spectroscopy analysis in polymer translocation
Creators: name: Fiasconaro, Alessandro
name: Falo, Fernando
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: This paper reports the force spectroscopy analysis of a polymer that translocates from one side of a membrane to the other side through an extended pore, pulled by a cantilever that moves with constant velocity against the damping and the potential barrier generated by the reaction of the membrane walls. The polymer is modeled as a beads-springs chain with both excluded volume and bending contributions, and moves in a stochastic three dimensional environment described by a Langevin dynamics at fixed temperature. The force trajectories recorded at different velocities reveal two unexplored exponential regimes: the force increases when the first part of the chain enters the pore, and then decreases when the first monomer reaches the trans region. The spectroscopy analysis of the force values permit the estimation of the free energy barrier as well as the limit force to permit the translocation. The stall force to maintain the polymer fixed has been also calculated independently, and its value confirms the force spectroscopy outcomes.
description: arXiv admin note: text overlap with arXiv:1705.05174
La Salud Mental en la Tercera Edad
Creators: name: MEDINA PONCE, ANGEL JONATAN
name: Bello Curbelo, Aruma
Publisher: name: Zenodo
Year: 2025

description: Seminario impartido como material de prácticas de aula de la asignatura 42417 - Cuidados Enfermeros en el Envejecimiento. Grado en Enfermería. Sede Gran Canaria
Coherent adiabatic theory of two-electron quantum dot molecules in external spin baths
Creators: name: Nepstad, R.
name: Sælen, L.
name: Hansen, J. P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We derive an accurate molecular orbital based expression for the coherent time evolution of a two-electron wave function in a quantum dot molecule where the electrons interact with each other, with external time dependent electromagnetic fields and with a surrounding nuclear spin reservoir. The theory allows for direct numerical modeling of the decoherence in quantum dots due to hyperfine interactions. Calculations result in good agreement with recent singlet-triplet dephasing experiments by Laird et. al. [Phys. Rev. Lett. 97, 056801 (2006)], as well as analytical model calculations. Furthermore, it is shown that using a much faster electric switch than applied in these experiments will transfer the initial state to excited states where the hyperfine singlet-triplet mixing is negligible.
description: 4 pages, 3 figures
Smooth crossing of $w_Λ = -1$ line in a single scalar field model
Creators: name: Sanyal, A. K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Smooth double crossing of the phantom divide line $w_Λ=-1$ has been found possible with a single minimally coupled scalar field for the most simple form of generalized k-essence cosmological model, in the presence of background cold dark matter. Such crossing is a sufficiently late time transient phenomena and does not have any pathological behaviour.
description: 9 pages, 6 figures
1001 Rocket Launches for Space Missions and Their Infrasonic Signature
Creators: name: Pilger, Christoph
name: Hupe, Patrick
name: Gaebler, Peter
name: Ceranna, Lars
Publisher: name: FID GEO
Year: 2021

description: Infrasound array processing is applied to monitor and characterize atmospheric explosions in the context of the Comprehensive Nuclear‐Test‐Ban Treaty. Anyhow, for many infrasound sources the exact location and time are initially unknown and sometimes difficult to precisely estimate afterward. In contrast, rocket launches are well‐defined ground‐truth events generating strong infrasonic signatures. During the last decade, the number of rocket launches for sending satellites into Earth’s orbit and for reaching space strongly increased. We collected ground‐truth information for 1001 rocket launches from 27 global spaceports between 2009 and mid‐2020 and were able to identify infrasound signatures from up to 73% of the launches on the International Monitoring System of infrasound stations. We use these unique data to estimate the global detectability of such events, to characterize rocket infrasound, to derive an amplitude‐energy relation, and to provide the results for further use as a ground‐truth reference in geophysical and atmospheric research.
description: Plain Language Summary: The launching of rockets from spaceports like Cape Canaveral, USA or Baikonur, Kazakhstan produces extremely loud sounds that can be heard at large distances. Similar to the basses of a large concert there are deep sounds that travel even farther, up to thousands of kilometers, through the air. This sound below what humans can hear, so called infrasound, can be collected by extremely sensitive instruments, similar to microphones for recording music. Within our study we were able to identify the sound of 733 out of 1001 rocket launches, performed within more than a decade of spaceflights, to bring satellites, astronauts, or cargo into space. We look at the tone of these starts to find out which types of rockets are best detected at which infrasound stations; and why. We furthermore make our findings available for scientists that want to learn more about the rockets that produce the sound, the air that transports it, and the instruments that record it.
description: Key Points: We analyze 1001 rocket launches since 2009 using International Monitoring System infrasound arrays. We estimate the global detectability, individual signal characteristics, and an amplitude‐energy relation of rocket infrasound. We provide a ground‐truth data set of signal parameters for 7637 infrasound events from 733 launches.
Density fluctuations and chiral phase transition
Creators: name: Redlich, K.
name: Friman, B.
name: Sasaki, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Based on an effective QCD Lagrangian we discuss the properties of charge density fluctuations in the vicinity of chiral phase transition. We explore thermodynamics in the presence of spinodal phase separation. We show that appearance of spinodal decomposition in a non-equilibrium first order phase transition results in divergence of the charge density fluctuations related with the electric charge and baryon number conservation. Consequently, divergent fluctuations at the chiral phase transition are not only attributed to the critical end point but are also there along the first order phase transition if the spinodal phase separation take place. Based on the mean field dynamics, the critical exponents for these singular behavior of charge susceptibilities are also discussed.
description: 8 pages, 4 figures, contribution to SQM 2007 in Levoca, Slovakia, J. Phys. G in press
The Auriga Stellar Haloes: Connecting stellar population properties with accretion and merging history
Creators: name: Monachesi, Antonela
name: Gómez, Facundo A.
name: Grand, Robert J. J.
name: Simpson, Christine M.
name: Kauffmann, Guinevere
name: Bustamante, Sebastián
name: Marinacci, Federico
name: Pakmor, Rüdiger
name: Springel, Volker
name: Frenk, Carlos S.
name: White, Simon D. M.
name: Tissera, Patricia B.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine the stellar haloes of the Auriga simulations, a suite of thirty cosmological magneto-hydrodynamical high-resolution simulations of Milky Way-mass galaxies performed with the moving-mesh code AREPO. We study halo global properties and radial profiles out to $\sim 150$ kpc for each individual galaxy. The Auriga haloes are diverse in their masses and density profiles; mean metallicity and metallicity gradients; ages; and shapes, reflecting the stochasticity inherent in their accretion and merger histories. A comparison with observations of nearby late-type galaxies shows very good agreement between most observed and simulated halo properties. However, Auriga haloes are typically too massive. We find a connection between population gradients and mass assembly history: galaxies with few significant progenitors have more massive haloes, possess large negative halo metallicity gradients and steeper density profiles. The number of accreted galaxies, either disrupted or under disruption, that contribute 90% of the accreted halo mass ranges from 1 to 14, with a median of 6.5, and their stellar masses span over three orders of magnitude. The observed halo mass--metallicity relation is well reproduced by Auriga and is set by the stellar mass and metallicity of the dominant satellite contributors. This relationship is found not only for the accreted component but also for the total (accreted + in-situ) stellar halo. Our results highlight the potential of observable halo properties to infer the assembly history of galaxies.
description: Accepted to MNRAS. 30 pages, 19 figures
The normalized volume of a singularity is lower semicontinuous
Creators: name: Blum, Harold
name: Liu, Yuchen
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We show that in any $\mathbb{Q}$-Gorenstein flat family of klt singularities, normalized volumes are lower semicontinuous with respect to the Zariski topology. A quick consequence is that smooth points have the largest normalized volume among all klt singularities. Using an alternative characterization of K-semistability developed by Li, Liu and Xu, we show that K-semistability is a very generic or empty condition in any $\mathbb{Q}$-Gorenstein flat family of log Fano pairs.
description: 28 pages. Comments are very welcome. v2: minor changes. To appear in J. Eur. Math. Soc. (JEMS). Remark: this preprint improves main results of the preprint (arXiv:1711.06962) by the second author
Śląsk kobiet.Tradycja, aktywność i ekologia.pdf
Creators: name: Xymena Bukowska
name: Iwińska, Katarzyna
name: Markowska, Barbara
name: Sałkowska, Marta
Publisher: name: figshare
Year: 2018
Subjects: subject: Anthropology
subject: FOS: Sociology
subject: 140301 Cross-Sectional Analysis
subject: FOS: Economics and business
subject: 149902 Ecological Economics
subject: 140205 Environment and Resource Economics
subject: 140209 Industry Economics and Industrial Organisation
subject: 140211 Labour Economics
subject: Sociology
subject: 140219 Welfare Economics
subject: 140218 Urban and Regional Economics

description: Publikacja opowiada o kobietach na Śląsku, o przemianach ich sposobów myślenia, działania i życia w regionie, którego intensywny rozwój przez dwa stulecia napędzał przemysł ciężki, hutniczy i wydobywczy. Mówi o zmianach społeczno-kulturowych, polityczno-obywatelskich i ekonomiczno-zawodowych zachodzących tu i teraz w życiu mieszkanek Górnego Śląska – o tym, jak je widzą, jak ich doświadczają, jak je czynią. O ich tożsamościach, aktywnościach, rodzinach, ich spojrzeniu na środowisko, ekologię i energetykę.
Tekst jest oparty o wyniki badań śląskich kobiet, przeprowadzonych w latach 2016-17 przez socjolożki z Collegium Civitas. Jest zapisem obserwacji, jak różnego rodzaju zaangażowanie przemienia się w działania obywatelskie na rzecz innych ludzi i środowiska. Badania umożliwiły unikalną możliwość schwytania codziennych chwil i przyjrzenie się – jak w soczewce – procesowi budzącej się świadomości i podmiotowości obywatelskiej i ekologicznej.
Variational and Dyson--Schwinger Equations of Hamiltonian Quantum Chromodynamics
Creators: name: Campagnari, Davide
name: Reinhardt, Hugo
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The variational Hamiltonian approach to Quantum Chromodynamics in Coulomb gauge is investigated within the framework of the canonical recursive Dyson--Schwinger equations. The dressing of the quark propagator arising from the variationally determined non-perturbative kernels is expanded and renormalized at one-loop order, yielding a chiral condensate compatible with the observations.
Quantifying the impact of chemicals on stable carbon and oxygen isotope values of raw pollen
Creators: name: Müller, Carolina
name: Hennig, Julian
name: Riedel, Frank
name: Helle, Gerhard
Publisher: name: FID GEO
Year: 2021

description: Purification protocols to extract pollen from lake sediments contain chemicals that alter the carbon and oxygen pollen‐isotope values according to pollen characteristics and family affiliation. Modern (raw) pollen of broad‐leaved (Alnus glutinosa, Betula pendula, Carpinus betulus, Corylus avellana, Fagus sylvatica and Quercus robur) and coniferous tree species (Picea abies and Pinus sylvestris) were treated with potassium hydroxide (KOH), hydrofluoric acid (HF), sodium hypochlorite (NaClO) and sulphuric acid (H2SO4) to test the impact on δ13Cpollen and δ18Opollen and assess the applicability in purification protocols. Pollen of broad‐leaved and coniferous trees reacted differently to chemical exposure, but response patterns are generally alike. Alterations of δ13Cpollen values vary between + 1.0‰ (B. pendula, NaClO‐treatment) and −5.0‰ (P. sylvestris, H2SO4‐treatment). The δ13Cpollen values of raw and chemically treated samples seem to be related after treatments with KOH, NaClO and HF, whereas the application of H2SO4 led to inconsistent changes among species. The impact of chemicals on δ18Opollen are more diverse and offsets range between +1.1‰ (C. avellana, NaClO‐treatment) and −17.9‰ (P. sylvestris, H2SO4‐treatment). In general, the use of isotope‐altering chemicals in purification protocols should be brought to a minimum, but the application of KOH and NaClO seems mostly unproblematic before δ13Cpollen and δ18Opollen analysis.
description: Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659
Astrophysical signatures of leptonium
Creators: name: Ellis, Simon C.
name: Bland-Hawthorn, Joss
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: More than 10^43 positrons annihilate every second in the centre of our Galaxy yet, despite four decades of observations, their origin is still unknown. Many candidates have been proposed, such as supernovae and low mass X-ray binaries. However, these models are difficult to reconcile with the distribution of positrons, which are highly concentrated in the Galactic bulge, and therefore require specific propagation of the positrons through the interstellar medium. Alternative sources include dark matter decay, or the supermassive black hole, both of which would have a naturally high bulge-to-disc ratio. The chief difficulty in reconciling models with the observations is the intrinsically poor angular resolution of gamma-ray observations, which cannot resolve point sources. Essentially all of the positrons annihilate via the formation of positronium. This gives rise to the possibility of observing recombination lines of positronium emitted before the atom annihilates. These emission lines would be in the UV and the NIR, giving an increase in angular resolution of a factor of 10^4 compared to gamma ray observations, and allowing the discrimination between point sources and truly diffuse emission. Analogously to the formation of positronium, it is possible to form atoms of true muonium and true tauonium. Since muons and tauons are intrinsically unstable, the formation of such leptonium atoms will be localised to their places of origin. Thus observations of true muonium or true tauonium can provide another way to distinguish between truly diffuse sources such as dark matter decay, and an unresolved distribution of point sources.
description: Accepted for publication in EPJ-D, 9 pages, 4 figures
Decoherence of nuclear spins due to direct dipole-dipole interactions probed by resistively detected nuclear magnetic resonance
Creators: name: Ota, T.
name: Yusa, G.
name: Kumada, N.
name: Miyashita, S.
name: Fujisawa, T.
name: Hirayama, Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study decoherence of nuclear spins in a GaAs quantum well structure using resistively detected nuclear magnetic resonance. The transverse decoherence time T2 of 75As nuclei is estimated from Rabi-type coherent oscillations as well as by using spin-echo techniques. By analyzing T2 obtained by decoupling techniques, we extract the role of dipole-dipole interactions as sources of decoherence in GaAs. Under the condition that the device is tilted in an external magnetic field, we exhibit enhanced decoherence induced by the change in strength of the direct dipole-dipole interactions between first nearest-neighbor nuclei. The results agree well with simple numerical calculations.
description: 4 pages, 4 figures
Imprints of relativistic effects on the asymmetry of the halo cross-correlation function: from linear to non-linear scales
Creators: name: Breton, Michel-Andrès
name: Rasera, Yann
name: Taruya, Atsushi
name: Lacombe, Osmin
name: Saga, Shohei
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The apparent distribution of large-scale structures in the universe is sensitive to the velocity/potential of the sources as well as the potential along the line-of-sight through the mapping from real space to redshift space (redshift-space distortions, RSD). Since odd multipoles of the halo cross-correlation function vanish when considering standard Doppler RSD, the dipole is a sensitive probe of relativistic and wide-angle effects. We build a catalogue of ten million haloes (Milky-Way size to galaxy-cluster size) from the full-sky light-cone of a new "RayGalGroupSims" N-body simulation which covers a volume of ($2.625~h^{-1}$Gpc)$^3$ with $4096^3$ particles. Using ray-tracing techniques, we find the null geodesics connecting all the sources to the observer. We then self-consistently derive all the relativistic contributions (in the weak-field approximation) to RSD: Doppler, transverse Doppler, gravitational, lensing and integrated Sachs-Wolfe. It allows us, for the first time, to disentangle all contributions to the dipole from linear to non-linear scales. At large scale, we recover the linear predictions dominated by a contribution from the divergence of neighbouring line-of-sights. While the linear theory remains a reasonable approximation of the velocity contribution to the dipole at non-linear scales it fails to reproduce the potential contribution below $30-60~h^{-1}$Mpc (depending on the halo mass). At scales smaller than $\sim 10~h^{-1}$Mpc, the dipole is dominated by the asymmetry caused by the gravitational redshift. The transition between the two regimes is mass dependent as well. We also identify a new non-trivial contribution from the non-linear coupling between potential and velocity terms.
description: 29 pages, accepted
Masses of radiation pressure supported stars in extreme relativistic realm
Creators: name: Mitra, Abhas
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We discuss that in the extreme relativistic limit, i.e., when z >>1, where z is the surface gravitational redshift, there could be radiation pressure supported and dominated stars with arbitrary gravitational mass, high or low. Such Objects are called Eternally Collapsing Objects (ECOs). ECOs are practically as compact as Schwarzschil Black Holes (BH) and, observationally, are likely to be mistaken as BHs. Further since any object undergoing continued collapse must first become an ECO before becoming a true BH state charcterized by M=0, the observed BH Candidates are ECOs.
description: Proceedings of IAU Symposium #238, held 21-25 August, 2006 in Prague, Czech Republic
Microwave vortex dynamics in Tl-2212 thin films
Creators: name: Pompeo, N.
name: Schneidewind, H.
name: Silva, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present measurements of the effective surface impedance changes due to a static magnetic field, $ΔZ(H,T)=ΔR(H,T)+\rmi ΔX(H,T)$, in a Tl-2212 thin film with $T_c>$ 103 K, grown on a CeO$_2$ buffered sapphire substrate. Measurements were performed through a dielectric resonator operating at 47.7 GHz, for temperatures 60 K$\leq TΔR(H)$ in almost the whole $(H,T)$ range explored. A careful analysis of the data allows for an interpretation of these results as dominated by vortex dynamics. In the intermediate-high field range we extract the main vortex parameters by resorting to standard high frequency model and by taking into proper account the creep contribution. The pinning constant shows a marked decrease with the field which can be interpreted in terms of flux lines softening associated to an incipient layer decoupling. Small vortex viscosity, by an order of magnitude lower than in Y-123 are found. Some speculations about these findings are provided.
description: pdfTeX, 4 pages, 3 figures, VORTEX 2007 proceedings, to appear in Physica C
title: ADCO, Cinquième cartulaire de Saint-Étienne de Dijon (1664), Cart. 28 (G 132), 258 folios, f. 00166
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: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cinquième cartulaire de Saint-Étienne de Dijon (1664), Archives départementales de la Côte-d'Or, Cart. 28 (G 132), 258 folios, f. 00166, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cinquième cartulaire de Saint-Étienne de Dijon (1664), Archives départementales de la Côte-d'Or, Cart. 28 (G 132), 258 folios, f. 00166, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
How Does the North Atlantic SST Pattern Respond to Anthropogenic Aerosols in the 1970s and 2000s?
Creators: name: Fiedler, S.
name: Putrasahan, D.
Publisher: name: FID GEO
Year: 2021

description: We show how changes in the global distribution of anthropogenic aerosols favor different spatial patterns in the North Atlantic sea‐surface temperature (NASST). The NASSTs largely show the expected decrease associated with the anthropogenic aerosols in the 1970s, but also an unusual warming response in the eastern sub‐polar gyre, the region of the North Atlantic warming hole. The NASST response reversed for the anthropogenic aerosols in the 2000s against 1970s. The regional reduction in anthropogenic aerosols favored as follows: (1) a strengthening of the warming hole and (2) a NASST increase at high latitudes associated with changes in the coupled atmosphere‐ocean dynamics. We found that the gyre component of the northward Atlantic heat transport in mid‐to high latitudes is an important driver for the heat convergence associated with the NASST patterns. At least two‐thirds of the NASST response in MPI‐ESM1.2 is associated with aerosol‐cloud interactions, highlighting the need to better understand them.
description: Plain Language Summary: The change of the North Atlantic sea‐surface temperature due to anthropogenic aerosols is not well understood. Aerosols reflect incoming solar radiation and influence clouds. Both effects are expected to cool the surface. The expected surface cooling (warming) due to more (less) aerosols is mostly seen in our experiment, but we also find an unusual warming (cooling) in a region in the North Atlantic, where observations show no clear warming trend. We identify that this area, known as the North Atlantic warming hole, is affected by circulation changes that are induced by the aerosol changes between the pre‐industrial, the 1970s and the 2000s. Changes of the heat transport in the ocean from the warming hole to the Arctic drives these changes. The magnitude of this temperature change in our experiments largely depends on the still uncertain aerosol effect on clouds.
description: Key Points: Anthropogenic aerosol patterns affect the coupled atmosphere‐ocean dynamical response 1970s to 2000s aerosol pattern change enhances North Atlantic warming hole through ocean meridional heat convergence by the sub‐polar gyre Most of the response to anthropogenic aerosols is associated with aerosol‐cloud interactions
description: Max Planck Society
description: German Science Foundation
description: German Federal Ministry for Transportation and Digital Infrastructure
Fermionic Lieb-Schultz-Mattis Theorems and Weak Symmetry-Protected Phases
Creators: name: Cheng, Meng
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The Lieb-Schultz-Mattis (LSM) theorem and its higher-dimensional generalizations by Oshikawa and Hastings establish that a translation-invariant lattice model of spin-$1/2$'s can not have a non-degenerate ground state preserving both spin and translation symmetries. Recently it was shown that LSM theorems can be interpreted in terms of bulk-boundary correspondence of certain weak symmetry-protected topological (SPT) phases. In this work we discuss LSM-type theorems for two-dimensional fermionic systems, which have no bosonic analogs. They follow from a general classification of weak SPT phases of fermions in three dimensions. We further derive constraints on possible gapped symmetry-enriched topological phases in such systems. In particular, we show that lattice translations must permute anyons, thus leading to "symmetry-enforced" non-Abelian dislocations, or "genons". We also discuss surface states of other weak SPT phases of fermions.
description: v2: typo fixed, acknowledgement updated; v3 published version
Defect-induced ferromagnetism in fullerenes
Creators: name: Boukhvalov, D. W.
name: Katsnelson, M. I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Based on the ab initio electronic structure calculations the picture of ferromagnetism in polimerized C60 is proposed which seems to explain the whole set of controversial experimental data. We have demonstrated that, in contrast with cubic fullerene, in rhombohedral C60 the segregation of iron atoms is energetically unprofitable which is a strong argument in favor of intrinsic character of carbon ferromagnetism which can be caused by vacancies with unpaired magnetic electrons. It is shown that: (i) energy formation of the vacancies in the rhombohedral phase of C60 is essentially smaller than in the cubic phase, (ii) there is a strong ferromagnetic exchange interactions between carbon cages containing the vacancies, and (iii) the fusion of the magnetic vacancies into nonmagnetic bivacancy is energetically profitable. The latter can explain a fragility of the ferromagnetism.
description: 11 pages, 7 figures, final version to be published in Eur. Phys. J B
Slip Rate of the Danghe Nan Shan Thrust Fault from 10Be Exposure Dating of Folded River Terraces: Implications for the Strain Distribution in Northern Tibet
Creators: name: Xu, Q.
name: Hetzel, R.
name: Hampel, A.
name: Wolff, R.
Publisher: name: FID GEO
Year: 2021

description: The northeastward motion of the Tibetan Plateau along the Altyn Tagh strike‐slip fault causes thrust faulting in three parallel mountain ranges (Qilian Shan, Daxue Shan, and Danghe Nan Shan) in the plateau interior, and leads to NNE‐directed crustal shortening and plateau growth. While slip rates at the plateau margin (i.e., along the Qilian Shan and the Altyn Tagh fault) are well constrained, rates of thrust faulting and the strain distribution in the plateau interior remain poorly resolved. Here, we use field investigations, a high‐resolution DEM, and 10Be exposure dating to quantify the shortening rate across the Danghe Nan Shan thrust fault from fluvial terraces, which are deformed by a growing NNE‐vergent anticline. 10Be exposure ages from two terrace levels range from 70 ± 5 to 92 ± 7 ka. When combined with uplift values of 37–68 m along the fold hinge, the 10Be ages yield a mean uplift rate of 0.6 ± 0.2 mm/year. Using the cross‐sectional area of the fold and the subsurface geometry of the listric thrust fault, we obtain a shortening rate of 0.8 ± 0.2 mm/year, which is consistent with the rate of elastic strain accumulation recorded by GPS data. Together with published fault slip rates and GPS data, our results indicate that northern Tibet experiences NNE‐directed shortening at a rate of ∼5 mm/year between the Qaidam Basin and the Hexi Corridor. In the plateau interior, this shortening is accommodated by several range‐bounding thrust faults and closely coupled with the eastward decrease in the slip rate of the Altyn Tagh fault.
description: Key Points: 10Be exposure ages for folded fluvial terraces yield a vertical slip rate of 0.6 ± 0.2 mm/year for the Danghe Nan Shan thrust fault. The fault geometry derived from the folded terraces combined with fold‐area balancing yields a shortening rate of 0.8 ± 0.2 mm/year. GPS data and fault slip rates suggest ∼5 mm/year of NNE–SSW‐directed shortening by thrust faulting in the interior of northern Tibet.
description: Alexander von Humboldt Foundation
Frank-Wolfe Network: An Interpretable Deep Structure for Non-Sparse Coding
Creators: name: Liu, Dong
name: Sun, Ke
name: Wang, Zhangyang
name: Liu, Runsheng
name: Zha, Zheng-Jun
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The problem of $L_p$-norm constrained coding is to convert signal into code that lies inside an $L_p$-ball and most faithfully reconstructs the signal. Previous works under the name of sparse coding considered the cases of $L_0$ and $L_1$ norms. The cases with $p>1$ values, i.e. non-sparse coding studied in this paper, remain a difficulty. We propose an interpretable deep structure namely Frank-Wolfe Network (F-W Net), whose architecture is inspired by unrolling and truncating the Frank-Wolfe algorithm for solving an $L_p$-norm constrained problem with $p\geq 1$. We show that the Frank-Wolfe solver for the $L_p$-norm constraint leads to a novel closed-form nonlinear unit, which is parameterized by $p$ and termed $pool_p$. The $pool_p$ unit links the conventional pooling, activation, and normalization operations, making F-W Net distinct from existing deep networks either heuristically designed or converted from projected gradient descent algorithms. We further show that the hyper-parameter $p$ can be made learnable instead of pre-chosen in F-W Net, which gracefully solves the non-sparse coding problem even with unknown $p$. We evaluate the performance of F-W Net on an extensive range of simulations as well as the task of handwritten digit recognition, where F-W Net exhibits strong learning capability. We then propose a convolutional version of F-W Net, and apply the convolutional F-W Net into image denoising and super-resolution tasks, where F-W Net all demonstrates impressive effectiveness, flexibility, and robustness.
description: Accepted to IEEE Transactions on Circuits and Systems for Video Technology. Code and pretrained models: https://github.com/sunke123/FW-Net
GAS CHROMATOGRAPHY -ARTICLE REVIEW
Creators: name: E. Nagadeepthi*, P.Bhargavi, B.Jhansi, B.N Ramana,
Publisher: name: Zenodo
Year: 2024

description: Gas chromatography (GC) is an important technique used for the analysis of mixture. In these instruments (GC Digital Gas Flow Meter) (GC-2010 Pro) the method allows mixtures to separate into each component and determine the amounts of components present in sample. By using Gas chromatography, we can analyze a very small amount (microliters) of sample. The sample to be analyzed by GC must be volatile and thermally stable. Helium gas is used to carry the vaporized sample, where the components of sample flow with different rates. The vaporized sample is allowed to flow in along tube having a porous material called column. As column temperature raised, vapour pressure analyte increases eluted faster. The flame ionization detector is used to analyses the parameters like retention time, retention volume, separation factor, Area under the curve (AUC). The analytical process is relatively fast, accurate and precise.

Keywords: Gas chromatography, Method development, Columns, Volatile, thermostable, Flame ionization detector, Accuracy, Retention time, Retention volume, separation factor, Area under the curve, Derivatization.
Minkowski space structure of the Higgs potential in 2HDM: II. Minima, symmetries, and topology
Creators: name: Ivanov, I. P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We continue to explore the consequences of the recently discovered Minkowski space structure of the Higgs potential in the two-Higgs-doublet model. Here, we focus on the vacuum properties. The search for extrema of the Higgs potential is reformulated in terms of 3-quadrics in the 3+1-dimensional Minkowski space. We prove that 2HDM cannot have more than two local minima in the orbit space and that a twice-degenerate minimum can arise only via spontaneous violation of a discrete symmetry of the Higgs potential. Investigating topology of the 3-quadrics, we give concise criteria for existence of non-contractible paths in the Higgs orbit space. We also study explicit symmetries of the Higgs potential/lagrangian and their spontaneous violation from a wider perspective than usual.
description: 27 pages, 5 figures
Atom-resonant squeezed light from a tunable monolithic ppRKTP parametric amplifier
Creators: name: Zielinska, Joanna A.
name: Mitchell, Morgan W.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate vacuum squeezing at the D1 line of atomic rubidium (795 nm) with a tunable, doubly-resonant, monolithic sub-threshold optical parametric oscillator in periodically-poled Rb-doped potassium titanyl phosphate. The squeezing appears to be undiminished by a strong dispersive optical nonlinearity recently observed in this material.
Recent Result in QCD Thermodynamics from the Lattice
Creators: name: Fodor, Z.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Recent results on QCD thermodynamics are presented. The nature of the T>0 transition is determined, which turns out to be an analytic cross-over. The absolute scale for this transition is calculated. The results were obtained by using a Symanzik improved gauge and stout-link improved fermionic action. In order to approach the continuum limit four different sets of lattice spacings were used with temporal extensions N_t=4, 6, 8 and 10 (they correspond to lattice spacings a \sim 0.3, 0.2, 0.15 and 0.12 fm). The equation of state is determined on N_t=4 and 6 lattices. The importance of the continuum limit for different results (critical endpoint, colour superconducting phase) at non-vanishing baryonic densities is discussed.
description: 15 pages, Critical Point and Onset of Deconfinement 4th International Workshop, July 9-13 2007, GSI Darmstadt,Germany
title: ADCO, Grènetier de Cîteaux : comptes (1497-1504) (11 H 1172), f. 00018
Creators: name: de la Côte-d'Or, Archives départementales
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
name: Archives Départementales De La Côte-D'Or
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: comptes
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Grènetier de Cîteaux : comptes (1497-1504), Archives départementales de la Côte-d'Or, (11 H 1172). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1497-1504), Archives départementales de la Côte-d'Or, (11 H 1172), f. 00018, 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
A ridge-parameter approach to deconvolution
Creators: name: Hall, Peter
name: Meister, Alexander
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G07, 62F05 (Primary)

description: Kernel methods for deconvolution have attractive features, and prevail in the literature. However, they have disadvantages, which include the fact that they are usually suitable only for cases where the error distribution is infinitely supported and its characteristic function does not ever vanish. Even in these settings, optimal convergence rates are achieved by kernel estimators only when the kernel is chosen to adapt to the unknown smoothness of the target distribution. In this paper we suggest alternative ridge methods, not involving kernels in any way. We show that ridge methods (a) do not require the assumption that the error-distribution characteristic function is nonvanishing; (b) adapt themselves remarkably well to the smoothness of the target density, with the result that the degree of smoothness does not need to be directly estimated; and (c) give optimal convergence rates in a broad range of settings.
description: Published in at http://dx.doi.org/10.1214/009053607000000028 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Distortion of the p-mode peak profiles by the solar-cycle frequency shifts: do we need to worry?
Creators: name: Chaplin, W. J.
name: Elsworth, Y.
name: New, R.
name: Toutain, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We seek to address whether solar-cycle frequency shifts of the Sun's low-l p modes `distort' the underlying shapes of the mode peaks, when those peaks are observed in power frequency spectra made from data spanning large fractions, or more, of the cycle period. We present analytical descriptions of the expected profiles, and validate the predictions through use of artificial seismic timeseries data, in which temporal variations of the oscillator frequencies are introduced. Our main finding is that for the Sun-like frequency shifts the distortion of the asymmetrical Lorentzian-like profiles is very small, but also just detectible. Our analysis indicates that by fitting modes to the usual Lorentzian-like models -- which do not allow for the distortion -- rather than new models we derive, there is a bias in the mode height and linewidth parameters that is comparable in size to the observational uncertainties given by multi-year datasets. Bias in the frequency parameter gives much less cause for worry, being over an order of magnitude smaller than the corresponding frequency uncertainties. The distortion discussed in this paper may need to be considered when multi-year Sun-like asteroseismic datasets are analyzed on stars showing strong activity cycles.
description: 7 pages; accepted for publication in MNRAS
Stable Biological Production in the Eastern Equatorial Pacific Across the Plio‐Pleistocene Transition (∼3.35–2.0 Ma)
Creators: name: Jakob, Kim A.
name: Ho, S. Ling
name: Meckler, A. Nele
name: Pross, Jörg
name: Fiebig, Jens
name: Keppler, Frank
name: Friedrich, Oliver
Publisher: name: FID GEO
Year: 2021

description: Upwelling within the Eastern Equatorial Pacific (EEP) Ocean is a key factor for the Earth's climate because it supports >10% of the present‐day biological production. The dynamics of upwelling in the EEP across the Plio‐Pleistocene transition—an interval particularly relevant for understanding near‐future warming due to Anthropocene‐like atmospheric carbon‐dioxide levels—have been intensively studied for the region east of the East Pacific Rise. In contrast, changes of the equatorial upwelling regime in the open Pacific Ocean west of this oceanographic barrier have received markedly less attention. We therefore provide new proxy records from Ocean Drilling Program Site 849 located within the EEP open‐ocean upwelling regime. Our target interval (∼3.35–2.0 Ma) covers the Plio‐Pleistocene transition characterized by the intensification of Northern Hemisphere Glaciation (iNHG). We use benthic δ18O values to generate a new, high‐resolution age model for Site 849, and sand‐accumulation rates together with benthic δ13C values to evaluate net export production. Although showing temporary substantial glacial‐interglacial variations, our records indicate stability in net export production on secular timescales across the iNHG. We suggest the following processes to have controlled the long‐term evolution of primary productivity at Site 849. First, nutrient export from the high latitudes to the EEP; second, a successive shoaling of the Pacific nutricline during the studied interval; and third, a simultaneous reduction in dust‐borne iron input.
description: Key Points: Glacial‐interglacial change in net export production at East Pacific Site 849 from ∼3.35 to 2.0 Ma. No secular change in net export production in the East Pacific across the Plio‐Pleistocene transition. Net export production on secular timescales regulated by nutrient content of upwelled waters, nutricline dynamics, and iron fertilization.
description: Deutsche Forschungsgemeinschaft (DFG) http://dx.doi.org/10.13039/501100001659
description: Trond Mohn Foundation
Low frequency view of GW 170817/GRB 170817A with the Giant Meterwave Radio Telescope
Creators: name: Resmi, L.
name: Schulze, S.
name: Chandra, C. H. Ishwara
name: Misra, K.
name: Buchner, J.
name: De Pasquale, M.
name: Ramirez, R. Sanchez
name: Klose, S.
name: Kim, S.
name: Tanvir, N. R.
name: O'Brien, P. T.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The short gamma-ray burst (GRB) 170817A was the first GRB associated with a gravitational-wave event. Due to the exceptionally low luminosity of the prompt $γ$-ray and the afterglow emission, the origin of both radiation components is highly debated. The most discussed models for the burst and the afterglow include a regular GRB jet seen off-axis and the emission from the cocoon encompassing a "choked" jet. Here, we report low radio-frequency observations at 610 and 1390~MHz obtained with the Giant Metrewave Radio Telescope (GMRT). Our observations span a range of $\sim7$ to $\sim152$ days after the burst. The afterglow started to emerge at these low frequencies about 60~days after the burst. The $1390$~MHz light curve barely evolved between 60 and 150 days, but its evolution is also marginally consistent with a $F_ν\propto t^{0.8}$ rise seen in higher frequencies. We model the radio data and archival X-ray, optical and high-frequency radio data with models of top-hat and Gaussian structured GRB jets. We performed a Markov Chain Monte Carlo analysis of the structured-jet parameter space. Though highly degenerate, useful bounds on the posterior probability distributions can be obtained. Our bounds of the viewing angle are consistent with that inferred from the gravitational wave signal. We estimate the energy budget in prompt emission to be an order of magnitude lower than that in the afterglow blast-wave.
description: Published in The Astrophysical Journal
Limits on Magnetically Induced Faraday Rotation from Polarized $^3$He Atoms
Creators: name: Abney, Josh
name: Broering, Mark
name: Roy, Murchhana
name: Korsch, Wolfgang
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Faraday rotation has become a powerful tool in a large variety of physics applications. Most prominently, Faraday rotation can be used in precision magnetometry. Here we report the first measurements of gyromagnetic Faraday rotation on a dense, hyperpolarized $^3$He gas target. Theoretical calculations predict the rotations of linearly polarized light due to the magnetization of spin-1/2 particles are on the scale of 10$^{-7}$ radians. To maximize the signal, a $^3$He target designed to use with a multipass cavity is combined with a sensitive apparatus for polarimetry that can detect optical rotations on the order of 10$^{-8}$ radians. Although the expected results are well above the sensitivity for the given experimental conditions, no nuclear-spin induced rotation was observed.