cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonclassical light from few emitters in a cavity
Creators: name: Pagel, D.
name: Alvermann, A.
name: Fehske, H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the characteristics of the light generated by few emitters in a cavity at strong light-matter coupling. By means of the Glauber $g^{(2)}$-function we can identify clearly distinguished parameter regimes with super-Poissonian and sub-Poissonian photon statistics. We establish a relation between the emission characteristics for one and multiple emitters, and explain its origin in terms of the photon-dressed emitter states. Cooperative effects lead to the generation of nonclassical light already at reduced light-matter coupling if the number of emitters is increased. Our results are obtained with a full input-output formalism and master equation valid also at strong light-matter coupling. We compare the behavior obtained with and without counter-rotating light-matter interaction terms in the Hamiltonian, and find that the generation of nonclassical light is robust against such modifications. Finally, we contrast our findings with the predictions of the quantum optical master equation and find that it fails entirely at predicting regimes with different photon statistics.
description: 11 pages, 10 figures. Published version
title:  Sull’unità duale di maschile e femminile. Per una genealogia simbolica dell’umano
Creators: name: Ricci Sindoni  ,  Paola
Publisher: name: Roma TrE-Press
Year: 2014

description: Mettendo in gioco differenti strategie cognitive, legate ora alle dinamiche socio-politiche, ora a quelle psicoanalitiche, narrative o storiche, il pensiero della differenza si è perlopiù orientato verso la configurazione di un sapere pratico, intenzionalmente estraneo ad una qualche configurazione ontologica, preferendo al contrario declinarsi come "etica", ricompresa come quell'insieme di norme comportamentali volte a valorizzare la specifica identità del mondo femminile.
description: B@belonline vol. 16/17 Pensare Altrimenti
Invertible disformal transformations with arbitrary higher-order derivatives
Creators: name: Takahashi, Kazufumi
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Invertible disformal transformations serve as a useful tool to explore ghost-free scalar-tensor theories. In this paper, we construct a generalization of invertible disformal transformations that involves arbitrary higher-order covariant derivatives of the scalar field. As a result, we obtain a more general class of ghost-free scalar-tensor theories than ever. Notably, our generalization is such that matter fields can be consistently coupled to these theories without introducing an unwanted extra degree of freedom in the unitary gauge.
description: 9 pages
Structure of the equivalent Newtonian systems in MOND N-body simulations. Density profiles and the core-cusp problem
Creators: name: Re, Federico
name: Di Cintio, Pierfrancesco
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the core-cusp problem of the $Λ$ cold dark matter ($Λ$CDM) scenario in the context of Modified Newtonian Dynamics (MOND) paradigm exploiting the concept of equivalent Newtonian system (ENS). By means of particle-mesh $N-$body simulations in MOND we explore processes of galaxy formation via cold dissipationless collapse or merging of smaller substructures. From the end states of our simulations we recover the associated ENS and study the properties of their dark matter halos. We compare the simulation results with simple analytical estimates with a family of $γ-$models. We find that the dark matter density of ENSs of most spherical cold collapses ha a markedly cored structure, in particular for the lowest values of the initial virial ratios. End states of some simulations with clumpy initial conditions have more complex profiles and some of their ENSs exhibit a moderate cusp, with logarithmic density slope always shallower than 1. These results seem to point towards the fact that the absence in most observed galaxies of a central DM cusp, at variance with what one would expect from theoretical and numerical arguments in $Λ$CDM, would be totally consistent in a MONDian description.
description: 10 pages, 8 figures 1 table. Matching the version accepted in A&A
Fête patronale de la saint Marcel, air de la danse des tripettes joué par les bravadeurs et chanté par les bouchers
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
Asymmetric One-Sided Semi-Device-Independent Steerability of Quantum Discordant States
Creators: name: Jebarathinam, Chellasamy
name: Das, Debarshi
name: Srikanth, R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Superlocality and superunsteerability provide operational characterization of quantum correlations in certain local and unsteerable states respectively. Such quantum correlated states have a nonzero quantum discord. A two-way nonzero quantum discord is necessary for quantum correlations pointed out by superlocality. On the other hand, in this work, we demonstrate that a two-way nonzero quantum discord is not necessary to demonstrate superunsteerability. To this end, we demonstrate superunsteerability for one-way quantum discordant states. This in turn implies the existence of one-way superunsteerability and also the presence of superunsteerability without superlocality. Superunsteerability for nonzero quantum discord states implies the occurence of steerability in a one-sided semi-device-independent way. Just like one-way steerability occurs for certain Bell-local states in a one-sided device-independent way, our result shows that one-way steerability can also occur for certain nonsuperlocal states but in a one-sided semi-device-independent way.
description: v4: close to published version. v3: Revised version resubmitted to PRA. v2: Improved motivations in Introduction on v1. 9 pages, 1 figure
Optical properties of subwavelength hole arrays in vanadium dioxide thin films
Creators: name: Haglund, R.F.
name: Feldman, L.C.
name: Donev, E.U.
name: Villegas, F.
name: Suh, J.Y.
name: Lopez, R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: We demonstrate that the transmission of far- and near-field incident light through a periodic array of subwavelength holes in a vanadium-dioxide (V O2) thin film is enhanced in the infrared range with respect to transmission through the unperforated film when V O2 undergoes its semiconductor-to-metal transition. We explain this enhancement by analyzing the loss of transmitted intensity due to leaky evanescent waves inside the holes and scattering at the entrance and exit apertures. Numerical simulations based on the transfer-matrix formalism provide qualitative support for the model and reproduce the principal features of the experimental measurements.
title: Городской праздник в контексте событийной индустрии
Creators: name: Прокофьева, Наталья
name: Максимова, Татьяна
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2020

description: В статье уделяется внимание содержанию и роли праздника как культурного феномена в народной жизни. Исследуется развитие различных функций праздников, включая организацию современного праздника в стратегиях культурной индустрии. Рассматриваются особенности городских праздников в системе событийной индустрии.
Das "Auge Gottes" in den Psalmen
Creators: name: Metzdorf, Justina
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 44 Nr. 2 (2015): Internationale katholische Zeitschrift Communio, Band 44, Heft 2
On isometries of conformally invariant metric
Creators: name: Klén, Riku
name: Vuorinen, Matti
name: Zhang, Xiaohui
Publisher: name: arXiv
Year: 2014
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30C65

description: We prove that isometries in a conformally invariant metric of a general domain are quasiconformal. In the particular case of the punctured space, we prove that isometries in this metric are Mobius, thus resolving a conjecture of Ferrand, Martin and Vuorinen [FMV, p. 200] in this particular case.
description: 8 pages, 2 figures
Magnetically amplified photothermal therapies and multimodal imaging with magnetoplasmonic nanodomes
Creators: name: Li, Zhi
Publisher: name: Zenodo
Year: 2018

description: Nanotherapies require new ways for controlling and improving the delivery of the therapeutic agents to the site of action to maximize their efficacy and minimize the side effects. This control is particularly relevant in photothermal treatments to reduce the required light intensity and amount of injected nanoparticles, and to minimize necrotic cell deaths. Here we present a novel concept for multifunctional nanobiomedical agents: magneto-plasmonic (MP) nanodomes for magnetically guided and amplified photothermal therapies and as contrast agents for multimodal imaging. The MP nanodomes are composed of a Fe/Au bilayer semi-shell deposited on a 100 nm diameter fluorescent polystyrene nanosphere, which gather a unique combination of straightforward functionalization, high colloidal stability, very strong ferromagnetic behavior and intense optical absorption efficiency in the near infrared. We show that the photothermal conversion efficiency of the Fe/Au nanodomes with high Fe ratios is substantially larger than pure plasmonic Au nanodomes and the state-of-art plasmonic nanoheaters, i.e. Au nanorods and nanoshells, by merging strong optical absorption, minimized scattering and low optical anisotropy. Remarkably, the effective magnetophoretic concentration of the Fe/Au nanodomes at the illumination region enables large local increase of the optically induced temperature rise. The Fe semishell also provides very intense T2 contrast in nuclear magnetic resonance, which is at least 15-fold larger per particle than commercial iron oxide contrast agents. Moreover, the fluorescent polystyrene nanosphere and the Au semishell integrate valuable fluorescent and Xray contrasts, respectively, which we have used to assess the nanodomes internalization by cancer cells. The MP nanodomes are nontoxic to cells even in the case of magnetophoretic local enrichment with initially high particle concentration (100 ug/mL). Remarkably, we demonstrate amplified local photothermal treatments by the magnetic enrichment of the nanodomes at the illumination region, which enables reaching nearly 100% reduction of cell viability with low particle concentration (10 ug/mL) and mild NIR laser intensity (5 W/cm2). These results highlight the high potential of MP nanodomes for magnetically guided and amplified photothermal therapies.
Second-harmonic generation from arrays of symmetric gold nanoparticles
Creators: name: McMahon, M.D.
name: Bunton, P.H.
name: Ray, E.A.
name: Haglund, R.F.
name: Lopez, R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: We show that second-harmonic light can be generated from a diffraction grating of gold nanoparticles with planar inversion symmetry. By measuring the angular distribution of second-harmonic light, we observe an effect in which the diffraction pattern of the grating is superimposed on the intrinsic second-harmonic radiation pattern of the nanoparticles. This result suggests that the second-harmonic generation may be used to study coherent nonlinear optical effects in symmetric as well as asymmetric metal nanoparticles.
Quantifying the energy balance between the turbulent ionised gas and young stars
Creators: name: Egorov, Oleg V.
name: Kreckel, Kathryn
name: Glover, Simon C. O.
name: Groves, Brent
name: Belfiore, Francesco
name: Emsellem, Eric
name: Klessen, Ralf S.
name: Leroy, Adam K.
name: Meidt, Sharon E.
name: Sarbadhicary, Sumit K.
name: Schinnerer, Eva
name: Watkins, Elizabeth J.
name: Whitmore, Brad C.
name: Barnes, Ashley T.
name: Congiu, Enrico
name: Dale, Daniel A.
name: Grasha, Kathryn
name: Larson, Kirsten L.
name: Lee, Janice C.
name: Méndez-Delgado, J. Eduardo
name: Thilker, David A.
name: Williams, Thomas G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the ionised gas morphology, excitation properties, and kinematics in 19 nearby star-forming galaxies from the PHANGS-MUSE survey. We directly compare the kinetic energy of expanding superbubbles and the turbulent motions in the interstellar medium with the mechanical energy deposited by massive stars in the form of winds and supernovae, with the aim to answer whether the stellar feedback is responsible for the observed turbulent motions and to quantify the fraction of mechanical energy retained in the superbubbles. Based on the distribution of the flux and velocity dispersion in the H$α$ line, we select 1484 regions of locally elevated velocity dispersion ($σ$(H$α$)>45 km/s), including at least 171 expanding superbubbles. We analyse these regions and relate their properties to those of the young stellar associations and star clusters identified in PHANGS-HST data. We find a good correlation between the kinetic energy of the ionised gas and the total mechanical energy input from supernovae and stellar winds from the stellar associations, with a typical coupling efficiency of 10-20%. The contribution of mechanical energy by the supernovae alone is not sufficient to explain the measured kinetic energy of the ionised gas, which implies that pre-supernova feedback in the form of radiation/thermal pressure and winds is necessary. We find that the gas kinetic energy decreases with metallicity for our sample covering Z=0.5-1.0 Zsun, reflecting the lower impact of stellar feedback. For the sample of superbubbles, we find that about 40% of the young stellar associations are preferentially located in their rims. We also find a slightly higher (by ~15%) fraction of the youngest (<3 Myr) stellar associations in the rims of the superbubbles than in the centres, and the opposite for older associations, which implies possible propagation or triggering of star formation.
description: Accepted by A&A. The abstract is abridged. 31 pages (including 8 pages in appendix), 20 figures, 2 tables
Diesseits des panoptischen "Blicks von nirgendwo"
Creators: name: Hoff, Johannes
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 44 Nr. 2 (2015): Internationale katholische Zeitschrift Communio, Band 44, Heft 2
343. The effects of initial treatment on relapse of ANCA-associated vasculitis in the PEXIVAS trial
Creators: name: Junek1, Mats
Publisher: name: Zenodo
Year: 2022
Subjects: Vasculitis
ANCA
Abstracts
Giant Cell Arthritis
MPA
GPA
EGPA
Takayasu
IgA vasculitis

description: Background: Relapses of granulomatosis with polyangiitis and microscopic polyangiitis, collectively ANCA-associated vasculitis [AAV]), are important health outcomes. We evaluated the effects of plasma exchange (PLEX) and standard- or reduced-dose oral glucocorticoid dosing regimens on relapses in the PEXIVAS trial. Methods: PEXIVAS was a 2-by-2 factorial randomized controlled trial in patients with severe AAV evaluating the effect of 7 plasma exchanges in 14 days and two regimens of oral glucocorticoids, in addition to standard initial immunosuppression (oral cyclophosphamide, intravenous cyclophosphamide, or rituximab) on the composite outcome of end-stage renal disease or death. In this post-hoc study we evaluated the effects of the randomized treatments on relapses of vasculitis occurring at least 90 days after randomization. Participants were followed for up to 7 years. Analyses were conducted using Cox proportional hazards models adjusted for the randomly assigned treatments and baseline characteristics including initial immunosuppression. Results: Of the 704 participants in PEXIVAS, 150 (23.3%) experienced at least one relapse. There was no evidence of an interaction between PLEX and glucocorticoid regimen (p=0.41). PLEX did not reduce the risk of relapse (hazard ratio [HR] 0.97, 95% confidence interval [CI] 0.70-1.34). The reduced glucocorticoid regimen did not alter the risk of relapse compared to the standard dose regimen (HR 0.95, 95% CI 0.68-1.32). Compared to intravenous cyclophosphamide, oral cyclophosphamide (HR 0.55, 95% CI 0.36-0.83), but not rituximab (HR 0.75, 95% CI 0.43-1.33) was associated with a reduced risk of relapse. Findings were similar when considering death as a competing risk in sensitivity analyses. Discussion: In the PEXIVAS trial neither PLEX nor the induction oral glucocorticoid regimen altered the risk of relapse in patients with severe AAV. Treatment with IV cyclophosphamide was associated with a higher risk of relapse. Disclosures: MJ, EV, RW – No Disclosures, PM – Consultant and recipient of research support for AbbVie, AstraZeneca, Boeringher-Ingelheim, Bristol-Myers Squibb, ChemoCentryx, Forbius, Genentech/Roche, Genzyme/Sanofi, GlaxoSmithKline, InflaRx, Consultant for CSL Behring, Dynacure, Eicos, EMDSerono, Forbius, Janssen, Kiniksa, Magneta, Neutrolis, Novartis, Pfizer, Star Therapeutics Takeda, Talaris, Recipient of research support from Sanofi, Receives royalties from UpToDate. NK – Trial support from Roche, B, Sanofi, Abbvie MW – Research support from Vifor
Lateral downflows in sunspot penumbral filaments and their temporal evolution
Creators: name: Pozuelo, S. Esteban
name: Rubio, L. R. Bellot
name: Rodriguez, J. de la Cruz
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the temporal evolution of downflows observed at the lateral edges of penumbral filaments in a sunspot located very close to the disk center. Our analysis is based on a sequence of nearly diffraction-limited scans of the Fe I 617.3 nm line taken with the CRisp Imaging Spectro-Polarimeter at the Swedish 1 m Solar Telescope. We compute Dopplergrams from the observed intensity profiles using line bisectors and filter the resulting velocity maps for subsonic oscillations. Lateral downflows appear everywhere in the center-side penumbra as small, weak patches of redshifts next to or along the edges of blueshifted flow channels. These patches have an intermittent life and undergo mergings and fragmentations quite frequently. The lateral downflows move together with the hosting filaments and react to their shape variations, very much resembling the evolution of granular convection in the quiet Sun. There is a good relation between brightness and velocity of the flow structures in the center-side penumbra, with downflows being darker than upflows on average, which is again reminiscent of quiet Sun convection. These results point to the existence of overturning convection in sunspot penumbrae, with elongated cells forming filaments where the flow is upward but very inclined, and weak lateral downward flows. In general, the circular polarization profiles emerging from the lateral downflows do not show sign reversals, although sometimes we detect three-lobed profiles which are suggestive of opposite magnetic polarities in the pixel.
description: 16 pages, 15 figures. Accepted for publication in ApJ. Movies are available at http://spg.iaa.es/downloads
Comment on "Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A*"
Creators: name: Tsukamoto, Naoki
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Vagnozzi et al. constrained the additional parameter of spacetimes with a photon sphere from the observation of the shadow of Sagittarius A* under the assumption that a distance to the Sagittarius A* and its mass parameter was estimated from other observations. They claimed that a Damour-Solodukhin wormhole with an additional parameter $λ$ is not an asymptotically-flat spacetime and that they gave the first robust observational constraint on the parameter $λ$ of the Damour-Solodukhin wormhole. However, they overlooked the fact that: (A) the Damour-Solodukhin wormhole spacetime is asymptotically flat, (B) the throat of the Damour-Solodukhin wormhole works as an effective photon sphere for $λ>\sqrt{2}/2$, and (C) not only a usual mass parameter but also the parameter $λ$ contributes the mass of the Damour-Solodukhin wormhole. Because of the overlook (C), we realize that their constraint on the parameter $λ$ is invalid. This is because their method corresponds to the following way: They estimated the mass parameter from the other observations under the assumption $λ=0$ even though the value of the parameter $λ$ strongly affects the determination of the mass parameter, and then, they used the value of the mass parameter to constrain $λ$ from the observation of the shadow. We conclude that we should constrain the mass parameter and $λ$ from the shadow observation and other observations without the assumption $λ=0$.
description: 3 pages, no figure, minor changes, accepted for publication in Classical and Quantum Gravity
title: Образ города в кинематографе на примере Великого Новгорода
Creators: name: Прокофьева, Наталья
name: Пушкарева, Александра
name: Ширапова, Елизавета
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2020

description: В данной статье рассматривается значение кинематографа для создания образа городского пространства. А также проводится анализ кинофильмов, в которых город выступает одним из главных героев в построении визуального образа картины.
Gott von Angesicht zu Angesicht schauen wollen
Creators: name: Schulze, Markus
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 44 Nr. 2 (2015): Internationale katholische Zeitschrift Communio, Band 44, Heft 2
Minimal chaotic models from the Volterra gyrostat
Creators: name: Seshadri, Ashwin K
name: Lakshmivarahan, S
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Low-order models obtained through Galerkin projection of several physically important systems (e.g., Rayleigh-Bénard convection, mid-latitude quasi-geostrophic dynamics, and vorticity dynamics) appear in the form of coupled gyrostats. Forced dissipative chaos is an important phenomenon in these models, and this paper introduces and identifies 'minimal chaotic models' (MCMs), in the sense of having the fewest external forcing and linear dissipation terms, for the class of models arising from an underlying gyrostat core. The identification of MCMs reveals common conditions for chaos across a wide variety of physical systems. It is shown here that a critical distinction is whether the gyrostat core (without forcing or dissipation) conserves energy, depending on whether the sum of the quadratic coefficients is zero. The paper demonstrates that, for the energy-conserving condition of the gyrostat core, the requirement of a characteristic pair of fixed points that repel the chaotic flow dictates placement of forcing and dissipation in the minimal chaotic models. In contrast if the core does not conserve energy, the forcing can be arranged in additional ways for chaos to appear in the subclasses where linear feedbacks render fewer invariants in the gyrostat core. In all cases, the linear mode must experience dissipation for chaos to arise. The Volterra gyrostat presents a clear example where the arrangement of fixed points circumscribes more complex dynamics.
Modulated optical transmission of subwavelength hole arrays in metal- v O 2 films
Creators: name: Lopez, R.
name: Feldman, L.C.
name: Suh, J.Y.
name: Donev, E.U.
name: Haglund, R.F.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: We demonstrate the modulation of the transmission of near-infrared light through a periodic array of subwavelength apertures in Ag-V O2 and Au-V O2 double-layer films using the semiconductor-to-metal phase transition in V O2. The transmitted intensity ratio increases by a factor of 8 as the V O2 goes from the semiconductor to the metal phase. We attribute this modulation to the switchable dielectric-permittivity contrast between the air-filled holes in the array and the surrounding V O2 material, a conjecture that is semiquantitatively confirmed by simulation.
Das Auge Gottes und der gläserne Mensch
Creators: name: Tück, Jan-Heiner
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 44 Nr. 2 (2015): Internationale katholische Zeitschrift Communio, Band 44, Heft 2
Grundlagen für christliches Handeln
Creators: name: Kampling, Rainer
name: Bäumer, Franz-Josef
name: Schwarzenberger, Rudolf
name: Mette, Norbert
Publisher: name: Diakonia
Year: 1970

description: Diakonia, Bd. 22 Nr. 3 (1991): Diakonia, Band 22, Heft 3
Influence of early dark matter halos on the primordial black holes merger rate
Creators: name: Stasenko, Viktor
name: Belotsky, Konstantin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Primordial black hole (PBH) binaries forming in the early Universe may contribute to the merger events observed by the LIGO-Virgo-KAGRA collaborations. Moreover, the inferred merger rate constraints the fraction of PBH with masses $m \sim 10 \, M_{\odot}$ in the dark matter (DM) to $f_{PBH} \lesssim 10^{-3}$. This constraint assumes that after the formation of PBH binaries, they do not get destroyed or their parameters are not perturbed until the merger. However, PBHs themselves contribute to the formation of early DM structures in which the interactions between PBHs take place actively. This leads to the fact that the binaries can be perturbed in such a way that their lifetime becomes longer than the Hubble time $t_H$. In this work, we consider the effect of the initial spatial Poisson distribution of PBHs on the structure formation at the high redshifts $z \gtrsim 10$. Next, we explore the evolution of such halos due to the interaction of PBHs with each other and with DM particles. We show that the early halos evolve on timescales much shorter than the age of the Universe. Furthermore, for fractions of PBHs $f_{PBH} < 1$, the internal dynamics of a halo is significantly accelerated due to the dynamical friction of PBHs against DM particles. As a result, a significant fraction of binaries will be perturbed in such structures, and the gravitational waves constraints on PBHs with masses $m \sim 10 \, M_{\odot}$ can be weakened to $f_{PBH} \sim 0.1$.
The multiplicity of massive stars in the Scorpius OB1 association through high-contrast imaging
Creators: name: Pauwels, Tinne
name: Reggiani, Maddalena
name: Sana, Hugues
name: Rainot, Alan
name: Kratter, Kaitlin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: One of the most remarkable properties of massive stars is that almost all of them are found in binaries or higher-order multiple systems. Observations that cover the full companion mass ratio and separation regime are essential to constrain massive star and binary formation theories. We used VLT/SPHERE to characterise the multiplicity properties of 20 OB stars in the active star-forming region Sco OB1. We simultaneously observed with the IFS and IRDIS instruments, obtaining high-contrast imaging observations that cover a field of view of 1".73 x 1".73 in YJH bands and 11" x 12".5 in $K_1$ and $K_2$ bands, respectively, corresponding to a separation range between $\sim$200 and 9000 AU. The observations reach contrast magnitudes down to $ΔK_1 \sim 13$, allowing us to detect companions at the stellar-substellar boundary. In total, we detect 789 sources, most of which are likely background or foreground objects. We obtain SPHERE companion fractions of $2.3 \pm 0.4$ and $4.2 \pm 0.8$ for O- and B-type stars, respectively. Including all previously detected companions, we find a total multiplicity fraction of $0.89\pm0.07$ for our sample in the range of $\sim$0-12000 AU. In conclusion, SPHERE explores an as of yet uncharted territory of companions around massive stars, which is crucial to ultimately improve our understanding of massive star and binary formation.
description: 19 pages, 10 figures, accepted for publication in A&A
Cantique de saint Marcel chanté en provençal et joué aux galoubets-tambourins par Fabre père et fils, suivi d'un propos sur la tonalité de si naturel, dite de "Saint Barnabé"
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
Two-dimensional current percolation in nanocrystalline vanadiumdioxide films
Creators: name: Lopez, R.
name: Haglund, R.F.
name: Feldman, L.C.
name: Rozen, J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: Simultaneous measurements of the transmittance and the resistance were carried out on 20-nm-thick VO2 wires during the semiconductor-to-metal transition (SMT). They reveal an offset between the effective electrical and optical switching temperatures. This shift is due to current percolation through a network of nanometer-scale grains of different sizes undergoing a SMT at distinct temperatures. An effective-medium approximation can model this behavior and proves to be an indirect method to calculate the surface coverage of the films.
First on-sky results of a FIOS prototype, a Fabry Perot Based Instrument for Oxygen Searches
Creators: name: Rukdee, Surangkhana
name: Ben-Ami, Sagi
name: López-Morales, Mercedes
name: Szentgyorgyi, Andrew
name: Charbonneau, David
name: García-Mejía, Juliana
name: Buchner, Johannes
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The upcoming Extremely Large Telescopes (ELTs) are expected to have the collecting area required to detect potential biosignature gases such as molecular oxygen, $\mathrm{O_2}$, in the atmosphere of terrestrial planets around nearby stars. One of the most promising detection methods is transmission spectroscopy. To maximize our capability to detect $\mathrm{O_2}$ using this method, spectral resolutions $\mathrm{R}\geq 300,000$ are required to fully resolve the absorption lines in an Earth-like exoplanet atmosphere and disentangle the signal from telluric lines. Current high-resolution spectrographs typically achieve a spectral resolution of $\mathrm{R}\sim100,000$. Increasing the resolution in seeing limited observations/instruments requires drastically larger optical components, making these instruments even more expensive and hard to fabricate and assemble. Instead, we demonstrate a new approach to high-resolution spectroscopy. We implemented an ultra-high spectral resolution booster to be coupled in front of a high-resolution spectrograph. The instrument is based on a chained Fabry Perot array which generates a hyperfine spectral profile. We present on-sky telluric observations with a lab demonstrator. Depending on the configuration, this two-arm prototype reaches a resolution of R=250,000-350,000. After carefully modeling the prototype's behavior, we propose a Fabry Perot Interferometer (FPI) design for an eight-arm array configuration aimed at ELTs capable of exceeding R=300,000. The novel FPI resolution booster can be plugged in at the front end of an existing R=100,000 spectrograph to overwrite the spectral profile with a higher resolution for exoplanet atmosphere studies.
description: Accepted for publication in A&A; 12 pages, 13 figures
"Hybrid" Black Holes
Creators: name: Frolov, Valeri P.
name: Frolov, Andrei V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss a solution of the Einstein equations, obtained by gluing the external Kerr metric and the internal Weyl metric, describing an axisymmetric static vacuum distorted black hole. These metrics are glued at the null surfaces representing their horizons. For this purpose we use the formalism of massive thin null shells. The corresponding solution is called a "hybrid" black hole. The massive null shell has an angular momentum which is the origin of the rotation of the external Kerr spacetime. At the same time, the shell distorts the geometry inside the horizon. The inner geometry of the "hybrid" black hole coincides with the geometry of the interior of a non-rotating Weyl-distorted black hole. Properties of the "hybrid" black holes are briefly discussed.
description: 9 pages
The Generalised Born Oscillator and the Berry-Keating Hamiltonian
Creators: name: Giordano, Francesco
name: Negro, Stefano
name: Tateo, Roberto
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this study, we introduce and investigate a family of quantum mechanical models in 0+1 dimensions, known as generalized Born quantum oscillators. These models represent a one-parameter deformation of a specific system obtained by reducing the Nambu-Goto theory to 0+1 dimensions. Despite these systems showing significant similarities with $\mathrm{T}\overline{\mathrm{T}}$-type perturbations of two-dimensional relativistic models, our analysis reveals their potential as interesting regularizations of the Berry-Keating theory. We quantize these models using the Weyl quantization scheme up to very high orders in $\hbar$. By examining a specific scaling limit, we observe an intriguing connection between the generalized Born quantum oscillators and the Riemann-Siegel $θ$ function.
description: 23+16 pages; 8 figures; Published version
Allocution du secrétaire du comité des fêtes de Barjols annonçant la fin de l'édition 1954 de la fête patronale de la saint Marcel
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
Human Activity and Forest Degradation Threaten Populations of the Nigeria–Cameroon Chimpanzee (Pan troglodytes ellioti) in Western Cameroon
Creators: name: Fotang, Chefor
name: Bröring, Udo
name: Roos, Christian
name: Enoguanbhor, Evidence Chinedu
name: Abwe, Ekwoge
name: Dutton, Paul
name: Schierack, Peter
name: Angwafo, Tsi Evaristus
name: Birkhofer, Klaus
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: Bushmeat hunting
subject: Core areas
subject: Edge length
subject: Forest fragmentation
subject: Forest perforation
subject: Nest counts
subject: Mature forest
subject: Pan troglodytes ellioti
subject: Secondary forest
subject: 590 Tiere (Zoologie)

description: Increased human activities such as commodity-led deforestation, extension of agriculture, urbanization, and wildfires are major drivers of forest loss worldwide. In Cameroon, these activities cause a loss of suitable primate habitat and could ultimately threaten the survival of chimpanzees (Pan troglodytes). We derived independent estimates of the population size of the Endangered Nigeria–Cameroon chimpanzee (Pan troglodytes ellioti) in Kom-Wum Forest Reserve, Cameroon, and surrounding unprotected forest areas through 1) direct observations, 2) camera trapping, 3) distance sampling, 4) marked nest counts, and 5) standing crop nest counts. In addition, we georeferenced signs of chimpanzee and human activity along line transects. We used a generalized linear mixed model to predict the occurrence of chimpanzees in response to edge length (measured as the perimeter of core forest patches), core area of forest patches (measured as area of forest patches beyond an edge width of 100 m), habitat perforation (measured as the perimeter of nonforested landscape within core forest patches), patch size(measured as area of forest patches), and forest cover. Chimpanzee density estimates ranged from 0.1 (direct observation) to 0.9 (distance sampling) individuals km−2 depending on estimation method with a mean nest group size of 7 ± 5.4 (SD). The mean encounter rate for signs of chimpanzee activity was significantly higher in mature forests (2.3 signs km−1) than in secondary forests (0.3 signs km−1) and above 1000 m elevation (4.0 signs km−1) than below 1000 m (1.0 signs km−1). The mean encounter rate for signs of human activity was significantly higher in secondary (8.0 signs km−1) than in mature forests (0.9 signs km−1). Secondary forests, habitat perforation, and edge length had a significant negative effect on the occurrence of chimpanzee signs. Overall, human activity and forest degradation affected the number of observed chimpanzee signs negatively. Regular antipoaching patrols and reforestation programs in degraded areas could potentially reduce threats to populations of endangered species and may increase suitable habitat area.
Symmetry breaking effects on spin and electronic transport in graphene
Creators: name: Asmar, Mahmoud M.
name: Ulloa, Sergio E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The decoration of graphene samples with adatoms or nanoparticles leads to the enhancement of spin-orbit interactions as well as to the introduction of symmetry-breaking effects that could have drastic effects on spin and electronic transport phenomena. We present an analysis based on symmetry considerations and examine the impact on the scattering matrix for graphene systems containing defects that enhance spin-orbit interactions, while conserving the electronic total angular momentum. We show that the appearance and dominance of skew scattering, and the related observation of valley and/or spin Hall effect in decorated graphene samples, suggests the set of symmetries that adatom perturbations should satisfy. We further show that detailed measurements of the transport and elastic times as a function of carrier concentration make it possible to not only extract the strength of the spin-orbit interaction, as suggested before, but also obtain the amplitude of the symmetry-breaking terms introduced. To examine how different terms would affect measurements, we also present calculations for typical random distributions of impurities with different perturbations, illustrating the detailed energy dependence of different observables
Evolution of the Lyman-α emitting fraction and UV properties of lensed star-forming galaxies between 2.9 < z < 6.7
Creators: name: Goovaerts, Ilias
name: Pello, Roser
name: Thai, Tran Thi
name: Tuan-Anh, Pham
name: Richard, Johan
name: Claeyssens, Adélaïde
name: Carinos, Emile
name: de la Vieuville, Geoffroy
name: Matthee, Jorryt
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Faint galaxies are theorised to have played a major role in reionising the Universe. Their properties as well as the Lyman-α emitter fraction, could provide useful insight into this epoch. We use four galaxy clusters from the Lensed Lyman-alpha MUSE Arcs Sample (LLAMAS) which also have deep HST photometry to select a population of intrinsically faint Lyman Break Galaxies (LBGs) and Lyman-alpha Emitters (LAEs). We study the interrelation of these two populations, their properties, and the fraction of LBGs that display Lyman-alpha emission. The use of lensing clusters allows us to access an intrinsically faint population, the largest sample collected for this purpose: 263 LAEs and 972 LBGs between redshifts of 2.9 and 6.7, Lyman-alpha luminosities between 39.5 < log(L)(erg/s) < 42 and absolute UV magnitudes between -22 < M1500 < -12. We find a redshift evolution of the Lyman-alpha emitter fraction in line with past results, with diminished values above z = 6, taken to signify an increasingly neutral intervening IGM. Inspecting this redshift evolution with different limits on Lyman-alpha equivalent width (EW) and M1500 we find that the Lyman-alpha emitter fraction for the UV-brighter half of our sample is higher than the fraction for the UV-fainter half, a difference which increases at higher redshift. This is a surprising result and can be interpreted as a population of low Lyman-alpha EW, UV-bright galaxies situated in reionised bubbles. This result is especially interesting in the context of similar, UV-bright, low Lyman-alpha EW objects recently detected around the epoch of reionisation. We extend to intrinsically fainter objects the previously observed trends of LAEs among LBGs as galaxies with high star-formation rates and low dust content, as well as the strongest LAEs having in general fainter UV magnitudes and steeper UV slopes.
description: 14 pages, 10 figures, accepted in A&A
Das Kreuz als Mitte der Geschichte, oder: Was Christus für alle Menschen aller Zeiten getan hat
Creators: name: Menke, Karl-Heinz
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 44 Nr. 1 (2015): Internationale katholische Zeitschrift Communio, Band 44, Heft 1
RH 1.5D: a massively parallel code for multi-level radiative transfer with partial frequency redistribution and Zeeman polarisation
Creators: name: Pereira, Tiago M. D.
name: Uitenbroek, Han
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The emergence of three-dimensional magneto-hydrodynamic (MHD) simulations of stellar atmospheres has sparked a need for efficient radiative transfer codes to calculate detailed synthetic spectra. We present RH 1.5D, a massively parallel code based on the RH code and capable of performing Zeeman polarised multi-level non-local thermodynamical equilibrium (NLTE) calculations with partial frequency redistribution for an arbitrary amount of chemical species. The code calculates spectra from 3D, 2D or 1D atmospheric models on a column-by-column basis (or 1.5D). While the 1.5D approximation breaks down in the cores of very strong lines in an inhomogeneous environment, it is nevertheless suitable for a large range of scenarios and allows for faster convergence with finer control over the iteration of each simulation column. The code scales well to at least tens of thousands of CPU cores, and is publicly available. In the present work we briefly describe its inner workings, strategies for convergence optimisation, its parallelism, and some possible applications.
description: 6 pages, 3 figures. A&A in press. Updated version reflects changes in latest proofs
Painting baryons onto N-body simulations of galaxy clusters with image-to-image deep learning
Creators: name: Chadayammuri, Urmila
name: Ntampaka, Michelle
name: ZuHone, John
name: Bogdàn, Àkos
name: Kraft, Ralph
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Galaxy cluster mass functions are a function of cosmology, but mass is not a direct observable, and systematic errors abound in all its observable proxies. Mass-free inference can bypass this challenge, but it requires large suites of simulations spanning a range of cosmologies and models for directly observable quantities. In this work, we devise a U-net - an image-to-image machine learning algorithm - to ``paint'' the IllustrisTNG model of baryons onto dark-matter-only simulations of galaxy clusters. Using 761 galaxy clusters with $M_{200c} \gtrsim 10^{14}M_\odot$ from the TNG-300 simulation at $z<1$, we train the algorithm to read in maps of projected dark matter mass and output maps of projected gas density, temperature, and X-ray flux. The models train in under an hour on two GPUs, and then predict baryonic images for $\sim2700$ dark matter maps drawn from the TNG-300 dark-matter-only (DMO) simulation in under two minutes. Despite being trained on individual images, the model reproduces the true scaling relation and scatter for the $M_{DM}-L_X$, as well as the distribution functions of the cluster X-ray luminosity and gas mass. For just one decade in cluster mass, the model reproduces three orders of magnitude in $L_X$. The model is biased slightly high when using dark matter maps from the DMO simulation. The model performs well on inputs from TNG-300-2, whose mass resolution is 8 times coarser; further degrading the resolution biases the predicted luminosity function high. We conclude that U-net-based baryon painting is a promising technique to build large simulated cluster catalogs which can be used to improve cluster cosmology by combining existing full-physics and large $N$-body simulations.
description: Accepted to MNRAS
Marginal likelihoods of distances and extinctions to stars: computation and compact representation
Creators: name: Sale, S. E.
name: Magorrian, J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a method for obtaining the likelihood function of distance and extinction to a star given its photometry. The other properties of the star (its mass, age, metallicity and so on) are marginalised assuming a simple Galaxy model. We demonstrate that the resulting marginalised likelihood function can be described faithfully and compactly using a Gaussian mixture model. For dust mapping applications we strongly advocate using monochromatic over bandpass extinctions, and provide tables for converting from the former to the latter for different stellar types.
description: 14 pages, 12 figures. Accepted for publication in MNRAS. Source code is available at https://github.com/stuartsale