cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Climate implications of biomass appropriation: Integrating bioenergy and animal feeding systems
Creators: name: Meisterling, Kyle W
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 160510 Public Policy
subject: FOS: Political science
subject: 99999 Engineering not elsewhere classified
subject: FOS: Other engineering and technologies

description: Through land use and biomass utilization, humans are dominant forces in the planetary biosphere
and carbon and nitrogen cycles. Economic subsidies and policy mandates for producing biomasssourced
fuels and electricity could increase further the human appropriation of planetary net
primary productivity. After reviewing the magnitude of organic byproducts available as
feedstock, and presenting a model of the climate impact of organic waste management, this
dissertation focuses on the climate impact of the main biomass consumers in the United States:
livestock, including beef and dairy cattle, chickens (for meat and eggs), pigs and turkeys.
Existing estimates of feed consumption by livestock are synthesized, showing that beef cattle in
particular are large consumers of cellulosic biomass in the form of hay and grazed roughage. I
then determine the extent to which harvesting energy from animal manure can reduce and offset
the greenhouse gas (GHG) emissions from producing animal products. Finally, a life cycle
assessment (LCA) of an integrated animal product and bioenergy facility is presented. Biomass
flows and global warming potential (GWP) are modeled for two systems: one where the animal
production and bioenergy facilities are distinct and one where the facilities are integrated. The
animal production system includes a mix of animals. Such a system may be able to more
efficiently utilize byproducts from each system, but increasing the concentration of animals and
manure nutrients may make such a system difficult to implement
Investigation of Capillary Suspension Drying Behavior with Simultaneous Stress and Weight Measurements
Creators: name: Fischer, Steffen Benno
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2021
Subjects: Simultaneous stress measurement
cantilever deflection method
film drying
thin films
capillary suspension
capillary bridge
yield stress
particle induced phase separation
partial solubility
miscibility gap
shelf-life
film defects
uniform film
lateral drying
shrinkage
corner flow
particle coatings

description: Coatings and ceramic green bodies usually contain polymeric additives to prevent cracking caused by drying induced stresses, which requires subsequent removal steps. A new coating formulation using capillary suspensions was found to reduce cracking, while being absent of polymeric additives. This dissertation investigates the drying behavior of capillary suspensions. The cantilever deflection method, commonly used for investigation of drying stresses, is significantly improved. The simultaneous stress and weight measurement technique of the same coating in a temperature and humidity controlled chamber developed in this dissertation is unprecedented. Enhanced by visual observation and coating profiling, we propose liquid flow considerations to explain the observed prolonged constant drying period. Stress measurements performed at different drying conditions and suspension formulations show a decrease in peak stress by up to 40\% for the capillary suspension over the regular suspension without polymeric additives. A complex interplay between yield stress, capillary suspension formulation, and humidity that is capable of reducing the peak stress of a regular suspension is revealed. The role of water, an integral part of most capillary suspensions, was further investigated. We find that capillary suspensions can be formed from partially miscible liquid-liquid systems at low added fluid concentrations ($\mathrm{\lesssim \, } $4 vol%), just outside the miscibility gap, by adding particles followed by mixing. Even when stored in humid conditions, capillary suspension formation is observed. These findings have an effect on undesired flocculation of formulations when stored in a humid environment, but also impact stress reduction during drying.
First-principles study on superconductivity of P- and Cl-doped H$_3$S
Creators: name: Nakanishi, Akitaka
name: Ishikawa, Takahiro
name: Shimizu, Katsuya
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The recent reports on 203 K superconductivity in compressed hydrogen sulfide, H$_3$S, has attracted great interest in sulfur-hydrogen system under high pressure. Here, we investigated the superconductivity of P-doped and Cl-doped H$_3$S using the first-principles calculations based on the supercell method, which gives more reliable results on the superconductivity in doped systems than the calculations based on the virtual crystal approximation reported earlier. The superconducting critical temperature is increased from 189 to 212 K at 200 GPa in a cubic $Im\bar{3}m$ phase by the 6.25 % P doping, whereas it is decreased to 161 K by the 6.25 % Cl doping. Although the Cl doping weakens the superconductivity, it causes the $Im\bar{3}m$ phase to be stabilized in a lower pressure region than that in the non-doped H$_3$S.
description: 7 pages, 5 figures, 5 tables, submitted to Physical Review B
On the minimum mass of reionization sources
Creators: name: Choudhury, T. Roy
name: Ferrara, A.
name: Gallerani, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: By means of carefully calibrated semi-analytical reionization models, we estimate the minimum mass of star-forming haloes required to match the current data. Models which do not include haloes of total mass M < 10^9 M_sun fail at reproducing the Gunn-Peterson and electron scattering optical depths simultaneously, as they contribute too few (many) photons at high (low, z \approx 6) redshift. Marginally acceptable solutions require haloes with M \approx 5 \times 10^7 M_sun at z \approx 10, corresponding to virial temperatures (\sim 10^4K) for which cooling can be ensured by atomic transitions. However, a much better match to the data is obtained if minihaloes (M \sim 10^6 M_sun) are included in the analysis. We have critically examined the assumptions made in our model and conclude that reionization in the large-galaxies-only scenario can remain viable only if metal-free stars and/or some other exotic sources at z > 6 are included.
description: 6 pages, 2 figures
Two major extinction events in the evolutionary history of turtles: one caused by a meteorite, the other by hominins
Creators: name: Pereira, Anieli G.
name: Antonelli, Alexandre
name: Silvestro, Daniele
name: Faurby, Søren
Publisher: name: ETH Zurich
Year: 2022
Subjects: Biodiversity crisis
Extinction
Hominins
K-Pg
Mass extinction
PyRate
Testudines

description: We live in a time of highly accelerated extinction, which has the potential to mirror past mass extinction events. However, the rarity of these events and the restructuring of diversity that they cause complicate direct comparisons between the current extinction crisis and earlier mass extinctions. Among animals, turtles (Testudinata) are one of few groups which both have a sufficient fossil record and a sufficiently stable ecological importance to enable meaningful comparisons between the end Cretaceous mass extinction and the ongoing extinction event. In this paper we analyze the fossil record of turtles and recover three significant peaks in extinction rate. Two of these are in the Cretaceous, the second of these took place at the Cretaceous–Paleogene transition (K-Pg), reflecting the overall patterns previously reported for many other taxa. The third major extinction event started in the Pliocene and continues until now. This peak only affected terrestrial turtles and started much earlier in Eurasia and Africa lineages than elsewhere. This suggests that it may be linked to co-occurring hominins rather than having been caused by global climate change.
description: bioRxiv
Singlet Scalar Top Partners from Accidental Supersymmetry
Creators: name: Cheng, Hsin-Chia
name: Li, Lingfeng
name: Salvioni, Ennio
name: Verhaaren, Christopher B.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a model wherein the Higgs mass is protected from the quadratic one-loop top quark corrections by scalar particles that are complete singlets under the Standard Model (SM) gauge group. While bearing some similarity to Folded Supersymmetry, the construction is purely four dimensional and enjoys more parametric freedom, allowing electroweak symmetry breaking to occur easily. The cancelation of the top loop quadratic divergence is ensured by a $Z_3$ symmetry that relates the SM top sector and two hidden top sectors, each charged under its own hidden color group. In addition to the singlet scalars, the hidden sectors contain electroweak-charged supermultiplets below the TeV scale, which provide the main access to this model at colliders. The phenomenology presents both differences and similarities with respect to other realizations of neutral naturalness. Generally, the glueballs of hidden color have longer decay lengths. The production of hidden sector particles results in quirk or squirk bound states, which later annihilate. We survey the possible signatures and corresponding experimental constraints.
description: 41 pages, 9 Figures; v2: updated to published version
Vector Resonances from a Strong Electroweak Sector at Linear Colliders
Creators: name: Casalbuoni, R.
name: Chiappetta, P.
name: Deandrea, A.
name: De Curtis, S.
name: Dominici, D.
name: Gatto, R.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore the usefulness of very energetic linear $e^+e^-$ colliders in the $TeV$ range in studying an alternative scheme of electroweak symmetry breaking based on a strong interacting sector. The calculations are performed within the BESS model which contains new vector resonances. If the mass $M_V$ of the new boson multiplet lies not far from the maximum machine energy, or if it is lower, such a resonant contribution would be quite manifest. A result of our analysis is that also virtual effects are important. It appears that annihilation into a fermion pair in such machines, at the considered luminosities, would improve only marginally on existing limits if polarized beams are available and left-right asymmetries are measured. On the other hand, the process of $W$-pair production by $e^+e^-$ annihilation would allow for sensitive tests of the hypothesized strong sector, especially if the $W$ polarizations are reconstructed from their decay distributions, and the more so the higher the energy of the machine. An $e^+e^-$ collider with c.m. energy $\sqrt{s}=500~GeV$ could improve the limits on the model for the range $500
description: 21 pages, 13 figures (not included, but available on request), TeX, UGVA-DPT 1993/02-805, February 1993
A new period determination for the close PG1159 binary SDSSJ212531.92-010745.9
Creators: name: Schuh, S.
name: Traulsen, I.
name: Nagel, T.
name: Reiff, E.
name: Homeier, D.
name: Schwager, H.
name: Kusterer, D. -J.
name: Lutz, R.
name: Schreiber, M. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Methods to measure masses of PG1159 stars in order to test evolutionary scenarios are currently based on spectroscopic masses or asteroseismological mass determinations. One recently discovered PG1159 star in a close binary system may finally allow the first dynamical mass determination, which has so far been analysed on the basis of one SDSS spectrum and photometric monitoring. In order to be able to phase future radial velocity measurements of the system SDSSJ212531.92-010745.9, we follow up on the photometric monitoring of this system to provide a solid observational basis for an improved orbital ephemeris determination. New white-light time series of the brightness variation of SDSSJ212531.92-010745.9 with the Tuebingen 80cm and Goettingen 50cm telescopes extend the monitoring into a second season (2006), tripling the length of overall observational data available, and significantly increasing the time base covered. We give the ephemeris for the orbital motion of the system, based on a sine fit which now results in a period of 6.95573(5)h, and discuss the associated new amplitude determination in the context of the phased light curve variation profile. The accuracy of the ephemeris has been improved by more than one order of magnitude compared to that previously published for 2005 alone.
description: 3 pages, 2 figures, accepted for publication in Astronomical Notes
Foundations of Narrative Bibliometrics
Creators: name: Torres-Salinas, Daniel
name: Orduña-Olea, Enrique
name: Delgado-Vázquez, Ángel
name: Gorraiz, Juan
name: Arroyo-Machado, Wenceslao
Publisher: name: Zenodo
Year: 2024

description: The document 'Foundations of Narrative Bibliometrics' provides an analysis of the evolution of scientific assessment, highlighting the influence of manifestos such as DORA and CoARA in shaping ethical and responsible practices in academia, as well as their assimilation by Spanish scientific policies. It connects this context with the contributions of evaluative bibliometrics, emphasising the transition towards a more integrative approach that advocates for a balance between quantitative and qualitative methods in research evaluation. Furthermore, it underscores how the Narrative Curriculum has emerged as one of the fundamental tools in new evaluation processes, as it allows for the description of the complexity and context of academic achievements. Narrative Bibliometrics is proposed, defined as the use of bibliometric indicators to generate narratives and stories that support the defence and exposition of a scientific curriculum and/or its individual contributions within the framework of a scientific evaluation process. To introduce the reader, it presents, in a non exhaustive manner, sources, indicators, and practical cases for effectively applying narrative bibliometrics in various scientific evaluation contexts. Hence, this document is offered as an introductory tool for evaluators and researchers for a responsible use of bibliometric indicators.
Non-Perturbative Effects in 2-D String Theory or Beyond the Liouville Wall
Creators: name: Brustein, R.
name: Ovrut, B.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss continuous and discrete sectors in the collective field theory of $d=1$ matrix models. A canonical Lorentz invariant field theory extension of collective field theory is presented and its classical solutions in Euclidean and Minkowski space are found. We show that the discrete, low density, sector of collective field theory includes single eigenvalue Euclidean instantons which tunnel between different vacua of the extended theory. We further show that these ``stringy" instantons induce non-perturbative effective operators of strength $e^{-{1\over g}}$ in the extended theory. The relationship of the world sheet description of string theory and Liouville theory to the effective space-time theory is explained. We also comment on the role of the discrete, low density, sector of collective field theory in that framework.
description: 44 pages, 9 figures available as eps files on request
Georgian Politics after the Parliamentary Elections
Creators: name: Chikhladze, Mariam
name: Gvasalia, Tamari
name: Kakachia, Kornely
name: Kakabadze, Shota
name: Langbein, Julia
Publisher: name: ETH Zurich
Year: 2025
Subjects: Georgia (Caucasus Region)
Parliamentary elections October 2024
election manipulation
Georgian Dream
relationship between police and political power in Georgia
Russian Federation
European Union

description: Caucasus Analytical Digest (CAD), 141
description: ISSN:1867-9323
Anisotropic Attack of YAlO3 Model Environmental Barrier Coatings by Molten CaO-MgO-Al2O3-SiO2 Deposits
Creators: name: Plaza, Amanda M. Velazquez
Publisher: name: Carnegie Mellon University
Year: 2024
Subjects: Materials Engineering not elsewhere classified

description:  Environmental barrier coatings (EBCs) are used to protect ceramic-matrixcomposites from undesirable reactions with steam and calcia–magnesia–alumina silicate (CMAS) particulates found in gas-turbine engine environments. Effective EBCs contain yttria or rare earth ions that will react with molten CMAS to form a protective apatite layer that prevents further attack. Methods to improve the EBCs’ CMAS mitigation capabilities focus on improving the apatite yield but neglect optimizing the apatite formation behavior. This study investigates the effect of apatite nucleation behavior on CMAS penetration by comparing the CMAS wettability and attack in the range of 1200ºC to 1350ºC of four different single crystal orientations of yttrium aluminate perovskite (YAlO3, YAP), a promising EBC candidate. The EBC/CMAS interfacial energy and, thus, reaction behavior varies with YAP orientation though no wetting anisotropy could be observed at times greater than 10 min. In regions with low CMAS loading, rapid apatite growth is seen on YAP substrates with orientations associated with high EBC/CMAS interfacial energy. CMAS attack is significant in these samples because the coarse apatite morphology does not form a dense layer. Such behavior is not observed in regions with high CMAS loading where small apatite crystals do form a layer. These layers form on top of an yttrium aluminate garnet (Y3Al5O12, YAG) layer. Garnet influence on apatite layer density has been observed, but the mechanisms are not well understood and are the subject of ongoing work. S/TEM results have found that YAG inclusions can have an orientation relationship with the surrounding apatite crystal. Ongoing work aims to determine if the YAG layers are textured to confirm that it is mediating the apatite nucleation and growth. The present study shows that an environmental barrier coating’s CMAS-mitigating properties can be improved by controlling the nucleation and growth of apatite via secondary phases like garnet and making use of interfacial energy anisotropy.
Civil Wars in the Southwest Borderlands : Cultures in Conflict, 1861 - 1867
Creators: name: Masich, Andrew E.
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: History

description: From 1861 to 1867 the diverse peoples—Indian, Hispano, and Anglo—of the Southwest borderlands struggled for survival and dominance in civil wars, quite apart from the Civil War of the Southern rebellion that raged in the eastern United States. Successful adaptation to the changing conditions in the borderlands required accommodation, compromise, and alliances as much as it did violent confrontation, martial prowess, and the capacity to wage war. The warrior cultures of each of the antagonistic groups bore many similarities, but each brought to the conflict its traditional means of fighting and adapted to the evolving political and social landscape. The martial traditions—tactics, logistics, weapons, martial customs, treatment of enemy captives—of the communities in conflict in order to demonstrate how the preparation and practice of warfare by the different ethnic groups set in motion actions that resulted in conflict and played a significant role in the causes and outcomes of the wars for the borderlands. At the beginning of the Civil War, Navajos, Apaches, and Comanches held the reins of power in the borderlands while sedentary, agrarian Indian communities, Hispanos, and Anglos struggled to maintain strongholds in fortified villages, outposts, and mining settlements. By 1867, the last of the volunteer soldiers of the Civil War era had mustered out of service, and Benito Juárez’s Republicans had driven out the French, executed Emperor Maximilian, and reclaimed Mexico. In the border states of Chihuahua and Sonora, Mexican Republican troops began relocating tribes and reestablishing settlements devastated by Apache raiders. In the newly-configured U.S. territories of Arizona and New Mexico, slavery as an economic and social system began to collapse, and a new social, political, and economic order arose, with Anglos and Hispanos at the top of the hierarchy and the raiding tribes at the bottom. The federal government exerted control over reservation-restricted Indians and defined new territorial boundaries. International relations had also changed. A more defined and restricted border between Mexico and the United States emerged from the war-torn borderlands while Hispano and Anglo citizens uneasily shared a new American political and economic model for survival in the Southwest.
Relationship between EIT Post Eruption Arcades, Coronal Mass Ejections, Coronal Neutral Line and Magnetic Clouds
Creators: name: Yurchyshyn, Vasyl
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There is observational evidence that the elongation of an Earth directed coronal mass ejection (CME) may indicate the orientation of the underlying erupting flux rope. In this study, we compare orientations of CMEs, MCs, eruption arcades and coronal neutral line (CNL). We report on good correlations between i) the directions of the axial field in EIT arcades and the elongations of halo CMEs and ii) the tilt of the CNL and MC axis orientations. We found that majority of the eruptions that had EIT arcades, CMEs and MCs similarly oriented also had the CNL co-aligned with them. To the contrary, those events that showed no agreement between orientations of the EIT arcades, CMEs and MCs, had their MCs aligned with the coronal neutral line. We speculate that the axis of the ejecta may be rotated in such a way that it is locally aligns itself with the heliospheric current sheet.
On the Unification of Couplings in the Minimal Supersymmetric Standard Model
Creators: name: Carena, M.
name: Pokorski, S.
name: Wagner, C. E. M.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The unification of gauge and Yukawa couplings within the minimal supersymmetric standard model is studied at the two loop level. We derive an expression for the effective scale, $T_{SUSY}$, which characterizes the supersymmetric particle threshold corrections to the gauge couplings, and demonstrate that $T_{SUSY}$ is only slightly dependent on the squark and slepton masses, and strongly dependent on the Higgsino masses as well as on the mass ratio of the gauginos of the strong and weak interactions. Moreover, the value of the top quark Yukawa coupling necessary to achieve the unification of bottom and tau Yukawa couplings is also governed by $T_{SUSY}$, and it yields predictions for the top quark mass which are close to the quasi infrared fixed point results associated with the triviality bounds on this quantity. From the requirement of perturbative consistency of the top quark Yukawa sector of the theory, we obtain constraints on the allowed splitting of the supersymmetric spectrum, which, for certain values of the running bottom quark mass, are stronger than those ones coming from the experimental constraints on the strong gauge coupling.
description: 40 pages, MPI-Ph/93-10
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 1323
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: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1323, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1323, 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
PO 23 - IATROGENIC TRACHEOBRONCHIAL RUPTURE IN A FRAGILE PATIENT
Creators: name: Gonçalves1, Beatriz Carvalho
name: Abreu1, João
name: Rodrigues1, Ricardo
name: Gama1, Karina
name: Luís1, Mariana
Publisher: name: Revista da Sociedade Portuguesa de Anestesiologia
Year: 2023

description: .
description: Revista da Sociedade Portuguesa de Anestesiologia, Vol. 31 N.º 1 (2022): SUPLEMENTO Revista da Sociedade Portuguesa de Anestesiologia
Chemical Partitioning and Resultant Effects on Structure and Electrical Properties in Co-Containing Magnetic Amorphous Nanocomposites for Electric Motors
Creators: name: DeGeorge, Vincent G.
Publisher: name: Carnegie Mellon University
Year: 2017
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: chemical partitioning of Cobalt-containing soft magnetic amorphous and nanocomposite materials has been investigated with particular focus on its consequences on these materials’ nanostructure and electrical resistivity. Theory, models, experiment, and discussion in this regard are presented on this class of materials generally, and are detailed in particular on alloys of composition, (Fe65Co35)79.5+xB13Si2Nb4-xCu1.5, for X={0- 4at%}, and Co-based, Co76+YFe4Mn4-YB14Si2Nb4, for Y={0-4at%}. The context of this work is within the ongoing efforts to integrate soft magnetic metal amorphous and nanocomposite materials into electric motor applications by leveraging material properties with motor topology in order to increase the electrical efficiency and decrease the size, the usage of rare-earth permanent magnets, and the power losses of electric motors. A mass balance model derived from consideration of the partitioning of glass forming elements relates local composition to crystal state in these alloys. The ‘polymorphic burst’ onset mechanism and a Time-Temperature- Transformation diagram for secondary crystallization are also presented in relation to the partitioning of glass forming elements. Further, the intrinsic electrical resistivity of the material is related to the formation of virtual bound states due to dilute amounts of the glass forming elements. And lastly, a multiphase resistivity model for the effective composite resistivity that accounts for the amorphous, crystalline, and glass former-rich amorphous regions, each with distinct intrinsic resistivity, is also presented. The presented models are validated experimentally on the Co-containing alloys by Atom Probe Tomography performed through collaboration with Pacific Northwestern National Laboratory.
Phase noise measurements in long fiber interferometers for quantum repeaters applications
Creators: name: Minář, Jiří
name: de Riedmatten, Hugues
name: Simon, Christoph
name: Zbinden, Hugo
name: Gisin, Nicolas
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Many protocols for long distance quantum communication require interferometric phase stability over long distances of optical fibers. In this paper we investigate the phase noise in long optical fibers both in laboratory environment and in installed commercial fibers in an urban environment over short time scales (up to hundreds of us). We show that the phase fluctuations during the travel time of optical pulses in long fiber loops are small enough to obtain high visibility first order interference fringes in a Sagnac interferometer configuration for fiber lengths up to 75 km. We also measure phase fluctuations in a Mach-Zehnder interferometer in installed fibers with arm length 36.5 km. We verify that the phase noise respects gaussian distribution and measure the mean phase change as a function of time difference. The typical time needed for a mean phase change of 0.1 rad is of order of 100 us, which provides information about the time scale available for active phase stabilization. Our results are relevant for future implementations of quantum repeaters in installed optical fiber networks.
description: 9 pages with 10 figures
A simple model for molecular hydrogen chemistry coupled to radiation hydrodynamics
Creators: name: Nickerson, Sarah
name: Teyssier, Romain
name: Rosdahl, Joakim
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We introduce non-equilibrium molecular hydrogen chemistry into the radiation hydrodynamics code Ramses-RT. This is an adaptive mesh refinement grid code with radiation hydrodynamics that couples the thermal chemistry of hydrogen and helium to moment-based radiative transfer with the Eddington tensor closure model. The H2 physics that we include are formation on dust grains, gas phase formation, formation by three-body collisions, collisional destruction, photodissociation, photoionization, cosmic ray ionization, and self-shielding. In particular, we implement the first model for H2 self-shielding that is tied locally to moment-based radiative transfer by enhancing photodestruction. This self-shielding from Lyman-Werner line overlap is critical to H2 formation and gas cooling. We can now track the non-equilibrium evolution of molecular, atomic, and ionized hydrogen species with their corresponding dissociating and ionizing photon groups. Over a series of tests we show that our model works well compared to specialized photodissociation region codes. We successfully reproduce the transition depth between molecular and atomic hydrogen, molecular cooling of the gas, and a realistic Stromgren sphere embedded in a molecular medium. In this paper we focus on test cases to demonstrate the validity of our model on small scales. Our ultimate goal is to implement this in large-scale galactic simulations.
description: 21 pages, 12 figures, printed in MNRAS
Testing the Equivalence Principle in space after the MICROSCOPE mission
Creators: name: Nobili, Anna M.
name: Anselmi, Alberto
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Tests of the Weak Equivalence Principle can reveal a new, composition dependent, force of nature or disprove many models of new physics. For the first time such a test is successfully carried out in space by the MICROSCOPE satellite. Early results show no violation sourced by the Earth for Pt and Ti test masses with random errors (after 8.26d of integration time) of about 1 part in 1e14, and similar systematic errors.It improves by 10 times over the best ground tests with rotating torsion balances despite 70 times less sensitivity to differential accelerations, thanks to the much stronger driving signal in orbit. The test is limited by thermal noise from internal damping in the gold wires used for electrical grounding. This noise was shown to decrease when the s/c was set to rotate faster than planned. The result will improve by the end of the mission, as thermal noise decreases with more data. Not so systematic errors. We investigate major non-gravitational effects and find that the Pt-Pt sensor does not allow their separation from the signal. The early test reports an upper limit of systematic errors in the Pt-Ti sensor which are not detected in the Pt-Pt one, hence would not be distinguished from a violation. Once all the integration time is used to reduce random noise there will be no time left to check systematics. MICROSCOPE demonstrates the huge potential of space for WEP tests of very high precision and indicates how to reach it. To realize the potential, a new experiment needs the spacecraft to be in rapid, stable rotation around the symmetry axis, needs high quality state-of-the-art mechanical suspensions, and must allow systematic checks. The design of the "Galileo Galilei" (GG) experiment, aiming to test the WEP to 1 part in 1e17 unites all the needed features, indicating that a quantum leap in space is possible provided the new experiment heeds the lessons of MICROSCOPE.
description: To appear on Physical Review D
Correlation Functions in The Itzykson-Zuber Model
Creators: name: Shatashvili, Samson L.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The n-point function for the integral over unitary matrices with Itzykson-Zuber measure is reduced to the integral over Gelfand-Tzetlin table; integrand (for generic n) is given by linear exponential times rational function. For $n=2$ and in some cases for $n>2$ later in fact is the polinomial and this allows to give an explicit and simple expression for all 2-point and a set of n-point functions. For the most general n-point function a simple linear differential equation is constructed.
description: 13p., corrected TEX version, Preprint IASSNS-HEP-92/61
The structured backbone of temporal social ties
Creators: name: Kobayashi, Teruyoshi
name: Takaguchi, Taro
name: Barrat, Alain
Publisher: name: arXiv
Year: 2018
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In many data sets, crucial information on the structure and temporality of a system coexists with noise and non-essential elements. In networked systems, for instance, some edges might be non-essential or exist only by chance. Filtering them out and extracting a set of relevant connections, the "network backbone", is a non-trivial task, and methods put forward until now do not address time-resolved networks, whose availability has strongly increased in recent years. We develop here such a method, by defining an adequate temporal network null model, which calculates the random chance of nodes to be connected at any time after controlling for their activity. This allows us to identify, at any level of statistical significance, pairs of nodes that have more interactions than expected given their activities: These form a backbone of significant ties. We apply our method to empirical temporal networks of socio-economic interest and find that (i) at given level of statistical significance, our method identifies more significant ties than methods considering temporally aggregated networks, and (ii) when a community structure is present, most significant ties are intra-community edges, suggesting that the weights of inter-community edges can be explained by the null model of random interactions. Most importantly, our filtering method can assign a significance to more complex structures such as triads of simultaneous interactions, while methods based on static representations are by construction unable to do so. Strikingly, we uncover that significant triads are not equivalent to triangles composed by three significant edges. Our results hint at new ways to represent temporal networks for use in data-driven models and in anonymity-preserving ways.
description: Main text: 18 pages, 6 figures. SI: 22 pages, 17 figures
Old stellar counter-rotating components in early-type galaxies from elliptical-spiral mergers
Creators: name: Di Matteo, P.
name: Combes, F.
name: Melchior, A. -L.
name: Semelin, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate, by means of numerical simulations, the possibility of forming counter-rotating old stellar components by major mergers between an elliptical and a spiral galaxy. We show that counter-rotation can appear both in dissipative and dissipationless retrograde mergers, and it is mostly associated to the presence of a disk component, which preserves part of its initial spin. In turn, the external regions of the two interacting galaxies acquire part of the orbital angular momentum, due to the action of tidal forces exerted on each galaxy by the companion.
description: 6 pages, 15 figures. Accepted on Astronomy & Astrophysics
CP Test in the W Pair Production via Photon Fusion at NLC
Creators: name: Ma, J. P.
name: McKellar, B. H. J.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the possibility to test CP invariance in the $W^+W^-$ production via photon fusion at NLC. The predictions of the CP violation effects are made within two Higgs doublet extensions of the minimal standard model, where CP violation is introduced by a neutral Higgs exchange in s channel in our case. The width effect in the Higgs propagator on the CP violation effects is studied in detail. The CP violation effects can be measured in some parameter region of the extensions.
description: 11 pages, Tex, UM-P-93/16, OZ-93/6 One figure not included
Self-Duality and the KdV Hierarchy
Creators: name: Das, Ashok
name: Galvao, C. A. P.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive the entire KdV hierarchy as well as the recursion relations from the self-duality condition on gauge fields in four dimensions.
description: 7 pages
Transition Distribution Amplitudes for gamma* gamma collisions
Creators: name: Lansberg, J. P.
name: Pire, B.
name: Szymanowski, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the exclusive production of pi-pi and rho-pi in hard gamma* gamma scattering in the forward kinematical region where the virtuality of one photon provides us with a hard scale in the process. The newly introduced concept of Transition Distribution Amplitudes (TDA) is used to perform a QCD calculation of these reactions thanks to two simple models for TDAs. The sizable cross sections for rho-pi and pi-pi production may be tested at intense electron-positron colliders such as CLEO and B factories (Belle and BaBar).
description: Talk given at International Conference on the Structure and Interactions of the Photon (Photon 2007), 9-13 Jul 2007, Paris, France; 4 pages, 5 figures, uses photon2007.cls (included)
Analysis of broadband microwave conductivity and permittivity measurements of semiconducting materials
Creators: name: Ritz, Elvira
name: Dressel, Martin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We perform broadband phase sensitive measurements of the reflection coefficient from 45 MHz up to 20 GHz employing a vector network analyzer with a 2.4 mm coaxial sensor which is terminated by the sample under test. While the material parameters (conductivity and permittivity) can be easily extracted from the obtained impedance data if the sample is metallic, no direct solution is possible if the material under investigation is an insulator. Focusing on doped semiconductors with largely varying conductivity, here we present a closed calibration and evaluation procedure for frequencies up to 5 GHz, based on the rigorous solution for the electromagnetic field distribution inside the sample combined with the variational principle; basically no limiting assumptions are necessary. A simple static model based on the electric current distribution proves to yield the same frequency dependence of the complex conductivity up to 1 GHz. After a critical discussion we apply the developed method to the hopping transport in Si:P at temperature down to 1 K.
description: 9 pages, 10 figures, accepted for publication in the Journal of Applied Physics
Properties of the Superfluid in the Disordered Bose-Hubbard Model
Creators: name: de Abreu, Bruno R.
name: Ray, Ushnish
name: Vitiello, Silvio A.
name: Ceperley, David M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the properties of the superfluid phase in the three-dimensional disordered Bose-Hubbard model using Quantum Monte-Carlo simulations. The phase diagram is generated using Gaussian disorder on the on-site potential. Comparisons with box and speckle disorder show qualitative similarities leading to the re-entrant behavior of the superfluid. Quantitative differences that arise are controlled by the specific shape of the disorder. Statistics pertaining to disorder distributions are studied for a range of interaction strengths and system sizes, where strong finite-size effects are observed. Despite this, both the superfluid fraction and compressibility remain self-averaging throughout the superfluid phase. Close to the superfluid-Bose-glass phase boundary, finite-size effects dominate but still suggest that self-averaging holds. Our results are pertinent to experiments with ultracold atomic gases where a systematic disorder averaging procedure is typically not possible.
description: 10 pages, 7 figures
CP Violation in $t \bar{t}$ Production at $e^+ e^-$ Colliders
Creators: name: Grzcadkowski, Bohdan
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The general production {\it and} decay mechanism of $\ttbar$ in future high-energy $\epem$ colliders has been investigated in a model-independent way, focusing on an observation of possible CP violation. Angular asymmetries sensitive to CP violation either in the production {\it or} in the subsequent decays have been found. General considerations are illustrated through 1-loop effects induced by gluino exchange in the supersymmetric version of the Standard Model.
description: LATEX
3_PRECOLONIAL_CENTRALIZATION,_KORANIC_EDUCATION_AND_SCHOOL_PARTICIPATION Appendix [Gates Abridged] - Copy.docxPRECOLONIAL CENTRALIZATION, KORANIC EDUCATION AND SCHOOL PARTICIPATION IN NIGERIA
Creators: name: Adewole, Musiliu
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 380104
subject: Economics of education
classificationCode: 380199
subject: Applied economics not elsewhere classified

description: The main manuscript of the study entitled "PRECOLONIAL CENTRALIZATION, KORANIC EDUCATION AND SCHOOL PARTICIPATION IN NIGERIAThe main"
title: ADCO, Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Cart. 180 (11 H 755), 83 folios, f. 0065
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/2017
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: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Archives départementales de la Côte-d'Or, Cart. 180 (11 H 755), 83 folios, f. 0065, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Archives départementales de la Côte-d'Or, Cart. 180 (11 H 755), 83 folios, f. 0065, 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
Fermion Doubling and Gauge Invariance on Random Lattices
Creators: name: Griffin, C J
name: Kieu, T D
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Random-lattice fermions have been shown to be free of the doubling problem if there are no interactions or interactions of a non-gauge nature. On the other hand, gauge interactions impose stringent constraints as expressed by the Ward-Takahashi identities which could revive the free-field suppressed doubler modes in loop diagrams. Comparing random lattice, naive and Wilson fermions in two dimensional abelian background gauge theory, we show that indeed the doublers are revived for random lattices in the continuum limit. Some implications of the persistent doubling phenomenon on random lattices are also discussed.
description: 7 A4 pages, 3 figures in postcript are included
On the detection of low rank matrices in the high-dimensional regime
Creators: name: Chevreuil, Antoine
name: Loubaton, Philippe
Publisher: name: arXiv
Year: 2018
Subjects: subject: Signal Processing (eess.SP)
subject: Statistics Theory (math.ST)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: We address the detection of a low rank $n\times n$deterministic matrix $\mathbf{X}_{0}$ from the noisy observation ${\bf X}_{0}+{\bf Z}$ when $n\to\infty$, where ${\bf Z}$ is a complex Gaussian random matrix with independent identically distributed $\mathcal{N}_{c}(0,\frac{1}{n})$ entries. Thanks to large random matrix theory results, it is now well-known that if the largest singular value $λ_{1}$ of ${\bf X}_{0}$ verifies $λ_{1}>1$, then it is possible to exhibit consistent tests. In this contribution, we prove a contrario that under the condition $λ_{1}<1$, there are no consistent tests. Our proof is rather simple, inspired by previous works devoted to the case of rank 1 matrices ${\bf X}_{0}$.
description: 7 pages, 2 figures, submitted to EUSIPCO2018
Hypernatural inflation
Creators: name: Linde, Andrei
name: Wang, Dong-Gang
name: Welling, Yvette
name: Yamada, Yusuke
name: Achucarro, Ana
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We constructed a model of natural inflation in the context of $α$-attractor supergravity, in which both the dilaton field and the axion field are light during inflation, and the inflaton may be a combination of the two. The T-model version of this theory is defined on the Poincare disk with radius |Z| = 1. It describes a Mexican hat potential with the flat axion direction corresponding to a circle of radius |Z| < 1. The axion decay constant $f_{a}$ in this theory can be exponentially large because of the hyperbolic geometry of the Poincare disk. Depending on initial conditions, this model may describe $α$-attractor inflation driven by the radial component of the inflaton field, natural inflation driven by the axion field, or a sequence of these two regimes. We also construct the E-model version of this theory, which has similar properties. In addition, we describe generalized $α$-attractor models where the potential can be singular at the boundary of the moduli space, and show that they can provide a simple solution for the problem of initial conditions for the models with plateau potentials.
description: 25 pages, 8 figures; v2: published version with references added and discussion extended