cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Data-driven software security: Models and methods
Creators: name: Erlingsson, Úlfar
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: For computer software, our security models, policies, mechanisms, and means of assurance were primarily conceived and developed before the end of the 1970's. However, since that time, software has changed radically: it is thousands of times larger, comprises countless libraries, layers, and services, and is used for more purposes, in far more complex ways. It is worthwhile to revisit our core computer security concepts. For example, it is unclear whether the Principle of Least Privilege can help dictate security policy, when software is too complex for either its developers or its users to explain its intended behavior. This paper outlines a data-driven model for software security that takes an empirical, data-driven approach to modern software, and determines its exact, concrete behavior via comprehensive, online monitoring. Specifically, this paper briefly describes methods for efficient, detailed software monitoring, as well as methods for learning detailed software statistics while providing differential privacy for its users, and, finally, how machine learning methods can help discover users' expectations for intended software behavior, and thereby help set security policy. Those methods can be adopted in practice, even at very large scales, and demonstrate that data-driven software security models can provide real-world benefits.
description: Proceedings of the 29th IEEE Computer Security Foundations Symposium (CSF'16), Lisboa, PORTUGAL, June, 2016
The overnight consolidation of lexical tones (Qin et al., 2022)
Creators: name: Qin, Zhen
name: Jin, Rui
name: Zhang, Caicai
Publisher: name: ASHA journals
Year: 2022
Subjects: Phonetics and speech science
Speech pathology
Speech recognition

description: Purpose: Although variability of training materials has the potential to benefit the learning of lexical tones, the benefit is contingent on an individual’s pitch aptitude. Previous studies did not segregate immediate learning and consolidation after an overnight interval, and little is known about how pitch aptitude differences affect consolidation. This study examined whether pitch aptitude predicts overnight consolidation of Cantonese level tones through high-variability (HV) and low-variability (LV) training. Method: Two groups of Mandarin-speaking participants were first assessed in terms of pitch threshold and tone discrimination, which tapped into different aspects of pitch aptitude. They then received Cantonese level tone identification training in either an HV or an LV condition. The participants were trained in the evening, were tested after training, and returned after 24 hr for overnight consolidation assessment. Results: The results indicate that pitch aptitude, measured through pitch threshold, may have predicted overnight consolidation and training progress of the HV group but not those of the LV group. In the HV group, compared with high-aptitude learners, low-aptitude learners benefited temporarily from training variability but did not consolidate the tonal knowledge as much as their high-aptitude counterparts did after 24 hr. Conclusions: The findings suggest that individual learners had difficulty learning nonnative tones by virtue of memory consolidation. Higher pitch aptitude ability (pitch threshold) may provide protection against the decay of learned tones and facilitate tone consolidation. The findings imply that the early emergence of tonal representation is a dynamic process among individuals of nonnative speakers who are exposed to training variability.
 Supplemental Material S1. Additional details of response accuracy.
 Supplemental Material S2. Additional details of individual differences in training progress.
 Supplemental Material S3. Additional details of individual differences in consolidation.
 Supplemental Material S4. Identification performance on untrained-novel talker.
 Qin, Z., Jin, R., & Zhang, C. (2022). The effects of training variability and pitch aptitude on the overnight consolidation of lexical tones. Journal of Speech, Language, and Hearing Research. Advance online publication. https://doi.org/10.1044/2022_JSLHR-22-00058
Überlegungen zur Menschenwürde und zu ethischen Konsequenzen von Edith Steins Verständnis der menschlichen Individualität
Creators: name: Betschart, Christof
Publisher: name: Edith Stein Jahrbuch
Year: 2025

description: 1647268133
description: Edith Stein Jahrbuch, V. 21 (2015): Edith Stein Jahrbuch, Band 21
New Type of sub-THz Oscillator and Amplifier Systems Based on Helical-Type Gyro-TWTs
Creators: name: Marek, Alexander
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2023
Subjects: passive Modenkopplung
Sub-THz
Gyro-TWT
Ultrakurze Pulse
passive mode-locking
sub-THz
gyro-TWT
ultra-short pulses

description: This work presents the development of a new sub-THz source for the generation of trains of coherent high-power ultra-short pulses at 263 GHz via passive mode-locking of two coupled helical gyro-TWTs. For the first time, it is shown that the operation of such passive mode-locked helical gyro-TWTs in the hard excitation regime is of particular importance to reach the optimal coherency of the generated pulses. This could be of particular interest for some new time-domain DNP-NMR methods.
IGR J18293-1213 is an eclipsing Cataclysmic Variable
Creators: name: Clavel, Maïca
name: Tomsick, J. A.
name: Bodaghee, A.
name: Chiu, J. -L.
name: Fornasini, F. M.
name: Hong, J.
name: Krivonos, R.
name: Ponti, G.
name: Rahoui, F.
name: Stern, D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Studying the population of faint hard X-ray sources along the plane of the Galaxy is challenging because of high-extinction and crowding, which make the identification of individual sources more difficult. IGR J18293-1213 is part of the population of persistent sources which have been discovered by the INTEGRAL satellite. We report on NuSTAR and Swift/XRT observations of this source, performed on 2015 September 11. We detected three eclipsing intervals in the NuSTAR light curve, allowing us to constrain the duration of these eclipses, $Δt = 30.8^{+6.3}_{-0.0}$ min, and the orbital period of the system, $T = 6.92\pm0.01$ hr. Even though we only report an upper limit on the amplitude of a putative spin modulation, the orbital period and the hard thermal Bremsstrahlung spectrum of IGR J18293-1213 provide strong evidence that this source is a magnetic Cataclysmic Variable (CV). Our NuSTAR and Swift/XRT joint spectral analysis places strong constraints on the white dwarf mass $M_{\rm wd} = 0.78^{+0.10}_{-0.09}$ M$_\odot$. Assuming that the mass to radius ratio of the companion star $M_* / R_* = 1$ (solar units) and using $T$, $Δt$ and $M_{\rm wd}$, we derived the mass of the companion star $M_* = 0.82\pm0.01$ M$_\odot$, the orbital separation of the binary system $a=2.14\pm0.04$ R$_\odot$, and its orbital inclination compared to the line of sight $i=(72.2^{+2.4}_{-0.0})\pm1.0^\circ$.
description: 8 pages, 5 figures, accepted for publication in MNRAS
Getting ready for ultra-wide spectral scans: Reflections on the ALCHEMI Large Program
Creators: name: Martin, Sergio
name: ALCHEMI collaboration
Publisher: name: Zenodo
Year: 2024

description: For decades we have been limited by sensitivity, bandwidth or a combination of both in order to cover very large spectral windows. ALMA just made it possible and it is about to multiply its speed to make it a routine. I would like to share the experience from more than two decades working on spectral line surveys and in particular some reflections from the ALCHEMI Large Program experience. ALCHEMI stands for the ALMA Comprehensive High-resolution Extragalactic Molecular Inventory, and it is the culmination of line surveys covering ALMA Bands 3 through 7 towards one of the nearest and most prolific extragalactic molecular emitters. Both the tools we currently use and even our own mindset may still be shaped by the limited data we had up until ALMA opened its eyes, and may be simply futile to deal with the datasets to come with WSU. I will present some of the ALCHEMI results and my own reflections on the journey of this fantastic dataset to publication.
The Milky Way Project and ATLASGAL: The distribution and physical properties of cold clumps near infrared bubbles
Creators: name: Kendrew, S.
name: Beuther, H.
name: Simpson, R.
name: Csengeri, T.
name: Wienen, M.
name: Lintott, C. J.
name: Povich, M. S.
name: Beaumont, C.
name: Schuller, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a statistical study of the distribution and physical properties of cold dense material in and around the inner Galactic Plane near infrared bubbles as catalogued by the Milky Way Project citizen scientists. Using data from the ATLASGAL 870 um survey, we show that 48 +/- 2% of all cold clumps in the studied survey region (|l| <= 65 degrees, |b| <= 1 degree) are found in close proximity to a bubble, and 25 +/- 2% appear directly projected towards a bubble rim. A two-point correlation analysis confirms the strong correlation of massive cold clumps with expanding bubbles. It shows an overdensity of clumps along bubble rims that grows with increasing bubble size, which shows how interstellar medium material is reordered on large scales by bubble expansion around regions of massive star formation. The highest column density clumps appear resistent to the expansion, remaining overdense towards the bubbles' interior rather than being swept up by the expanding edge. Spectroscopic observations in ammonia show that cold dust clumps near bubbles appear to be denser, hotter and more turbulent than those in the field, offering circumstantial evidence that bubble-associated clumps are more likely to be forming stars. These observed differences in physical conditions persist for beyond the region of the bubble rims.
description: accepted for publication in ApJ
Many-electron effects on the x-ray Rayleigh scattering by highly charged He-like ions
Creators: name: Volotka, A. V.
name: Yerokhin, V. A.
name: Surzhykov, A.
name: Stöhlker, Th.
name: Fritzsche, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The Rayleigh scattering of x-rays by many-electron highly charged ions is studied theoretically. The many-electron perturbation theory, based on a rigorous quantum electrodynamics approach, is developed and implemented for the case of the elastic scattering of (high-energetic) photons by helium-like ion. Using this elaborate approach, we here investigate the many-electron effects beyond the independent-particle approximation (IPA) as conventionally employed for describing the Rayleigh scattering. The total and angle-differential cross sections are evaluated for the x-ray scattering by helium-like Ni$^{26+}$, Xe$^{52+}$, and Au$^{77+}$ ions in their ground state. The obtained results show that, for high-energetic photons, the effects beyond the IPA do not exceed 2% for the scattering by a closed $K$-shell.
description: 15 pages, 11 figures
Bernoulli equation and the nonexistence of maximal jets
Creators: name: Zdziarski, Andrzej A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We discuss the idea of maximal jets introduced by Falcke & Biermann in 1995. According to it, the maximum possible jet power in its internal energy equals the kinetic power in its rest mass. We show this result is incorrect because of an unfortunate algebraic mistake.
description: A&A, in press
On Variational Arguments for Vibrational Modes near Jamming
Creators: name: Yan, Le
name: DeGiuli, Eric
name: Wyart, Matthieu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Amorphous solids tend to present an abundance of soft elastic modes, which diminish their transport properties, generate heterogeneities in their elastic response, and affect non-linear processes like thermal activation of plasticity. This is especially true in packings of particles near their jamming transition, for which effective medium theory and variational arguments can both predict the density of vibrational modes. However, recent numerics support that one hypothesis of the variational argument does not hold. We provide a novel variational argument which overcomes this problem, and correctly predicts the scaling properties of soft modes near the jamming transition. Soft modes are shown to be related to the response to a local strain in more connected networks, and to be characterized by a volume $1/δz$, where $δz$ is the excess coordination above the Maxwell threshold. These predictions are verified numerically.
description: 5 pages, 2 figures
Planet-forming disks in the WSU era
Creators: name: Miotello, Anna
Publisher: name: Zenodo
Year: 2024

description: Planet-forming disks in the WSU era Talk abstract: Disks around protostars are thought to harbour on-going planet formation and/or recently formed planets. This picture is now supported by observations of rich, potentially planet-related, substructure. Therefore, it is essential to understand the physical and chemical nature of the protoplanetary building-blocks and their spatial distribution to better understand planet formation mechanisms and the demographics of the resulting planetary systems. In its first decade of operations ALMA has been transformational in the field of planet-forming disks, as it has enabled both moderate resolution (0.1" - 0.4", tens of au in nearby SFRs) statistical disk surveys and high resolution (down to 20 mas, 1 au in the closest disks) imaging studies. ALMA unprecedented sensitivity has also allowed us to shed light on the chemical composition of planet-forming disks. Nevertheless, improvements in data quality and sample size have possibly opened more questions than have been answered. In this talk I will review recent advancement in the field of planet-forming disks, with a a focus on results from ALMA Large Programs, and I will expand on the potential of WSU for this field.
Supplementary document for Theoretical study on the diffraction-based generation of 2D orthogonal lattice of optical beams: physical bases and application for a vortex beam multiplication - 6017098.pdf
Creators: name: Hebri, Davud
name: Rasouli, Saifollah
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: subject: 20501 Classical and Physical Optics
subject: FOS: Physical sciences

description: Supplemental document.
Dust and Power: Unravelling the Merger-AGN relation in the second half of the cosmic history
Creators: name: La Marca, Antonio
Publisher: name: Zenodo
Year: 2023

description: Galaxy mergers are fundamental in the hierarchical formation of cosmic structures, but their specific connection to the activation of Active Galactic Nuclei (AGNs) remains uncertain. This study investigates this link using cutting-edge observations and novel techniques. We focus on stellar mass-limited galaxy samples at redshift z < 1 from the Kilo-Degree Survey (KiDS), enriched with multi-wavelength data. We analyze three AGN types detected in the mid-infrared (MIR), X-ray, and via spectral energy distribution (SED) modelling. To identify mergers, we employ convolutional neural networks trained on cosmological simulations (IllustrisTNG and Horizon-AGN), establishing mass- and redshift-matched control groups of non-mergers and non-AGNs. Initial binary AGN/non-AGN classification reveals a pronounced AGN excess (2-3 times) in mergers compared to non-mergers for MIR AGNs, suggesting a strong association. Yet, the primary trigger for MIR AGNs remains unclear. About half of MIR AGNs are found in merging galaxies, raising questions about causality. In contrast, mergers appear less dominant as triggers for X-ray and SED AGNs. Further exploration using the continuous AGN fraction parameter (fAGN) uncovers that merging galaxies consistently exhibit elevated fAGN values across all AGN types relative to non-mergers. We introduce a novel merger fraction (fmerger) - fAGN relationship, which reveals two regimes. When AGNs are less dominant, we find a mildly increasing (or flat) fmerger - fAGN relation, with MIR AGNs displaying the highest fmerger values. However, for highly dominant AGNs (fAGN ≥ 0.8), fmerger rises steeply across all AGN types. Our findings suggest that galaxy mergers are closely linked to dust-obscured AGNs and likely serve as the primary, if not sole, triggers for the most powerful AGNs.
Edith Stein und Leni Valk im Fenster „Klever Märtyrer“ und Heilige der Neuzeit in St. Mariä Himmelfahrt zu Kleve
Creators: name: Vissering, Bodo
Publisher: name: Edith Stein Jahrbuch
Year: 2025

description: 164726796X
description: Edith Stein Jahrbuch, V. 21 (2015): Edith Stein Jahrbuch, Band 21
Teresa von Jesus (von Ávila) und Teresia Benedicta vom Kreuz (Edith Stein)
Creators: name: Essert-Lehn, Helga
Publisher: name: Edith Stein Jahrbuch
Year: 2025

description: 1647267935
description: Edith Stein Jahrbuch, V. 21 (2015): Edith Stein Jahrbuch, Band 21
Updates on ALMA Band 6v2 Receiver Development
Creators: name: Navarrini, Alessando
name: J.G. Lambert
name: A.R. Kerr
name: J. Effland
name: P. Dindo
name: K. Saini
name: R. Lehmensiek
name: D. Vaselaar
name: A. Handy
name: B. Casto
name: G. Morris
name: P. Astudillo
name: A.W. Lichtenberger
name: M. Cyberey
name: D. Monasterio
name: P. Mena
name: C. Jarufe
name: C. Brogan
name: B. Hawkins
Publisher: name: Zenodo
Year: 2024

description: We are developing an upgrade for the existing 211-275 GHz ALMA Band 6 receiver, referred to as Band 6v2. The new Band 6v2 receiver, based on a sideband separating SIS mixer architecture, will have a greatly increased IF bandwidth (baseline IF 4-16 GHz, goal IF 4-20 GHz) and a modestly expanded RF band (209-281 GHz) compared to the current Band 6. The Band 6v2 receiver consists of a new Cold Cartridge Assembly and a new Warm Cartridge Assembly designed to meet several challenging specifications that comply with the ALMA Wideband Sensitivity Upgrade requirements, including low noise (TSSB less than 53 K over 80\% of the band), high image rejection (greater than 15 dB over 90\% of the IF range), relatively flat receiver noise and gain vs frequency, as well as improved OMT and optics for lower sidelobe and cross-polarization levels. We are exploring several different configurations for the ALMA Band 6v2 sideband separating receiver, with improvements to all the major components, including optics, OMT, mixers, IF section, and local oscillator. The presentation will provide a brief overview of all the aforementioned aspects of the project.
GARD SIS Junction Fabrication ProcGARD SIS Junction Fabrication Process to serve Next Generation Receivers for ALMAess to serve Next Generation Receivers for ALMA
Creators: name: Pavolotsky, Aleksey
Publisher: name: Zenodo
Year: 2024

description: ALMA Development Roadmap sets the goal of ``increase of the receiver IF bandwidth by at least a factor of two'' to address the three new fundamental science drivers: the origin of galaxies, the origins of chemical complexity and the origin of planets. From the SIS mixer device perspective, the goal of increasing the IF bandwidth by at least a factor of two translates into requirement to decrease of and keep tight control over the SIS junction capacitance, which is responsible for IF response roll off at higher frequencies. In turn, that calls for (1) the SIS junctions with a smaller area and, hence, capacitance, and (2) the material system for the SIS junctions tunnel barrier having a lower specific capacitance. Supported by ESO and in collaboration with NAOJ and NOVA, GARD was running the studies addressing both goals. As the outcome of the studies, GARD currently supports the process for fabricating of SIS junctions with AlN tunnel barrier and the junction area down to 1 sq.um or a bit below. The GARD SIS design rule supports the junctions with RnA>5 Ohm/sq.um along with the specific capacitance Cs(RnA) specification. The SIS junction quality characterized by the ratio of subgap to normal resistances, Rj/Rn>20 (often better). At the workshop, we will present the details about the GARD SIS fabrication process and design rule, as well as the available results of measurements of SIS mixer demonstrators utilizing the SIS junctions made with the upgraded GARD fabrication process.
Experimental Quantification of Thermal Contact Resistances in Automotive Brake Systems
Creators: name: Helmig, Thorsten
name: Westphalen, Jan
name: Kneer, Reinhold
name: Hillemacher, Bernd
Publisher: name: RWTH Aachen University
Year: 2022

description: Annual Meeting on Reaction Engineering and ProcessNet Subject Division Heat and Mass Transfer 2022, Germany, Würzburg, 18 Jul 2022 - 20 Jul 2022
ALMA Past and Future Contributions to a Full Understanding of the Baryon Cycle
Creators: name: Peroux, Céline
Publisher: name: Zenodo
Year: 2024

description: The study of high-redshift galaxies is key to our global understanding of galaxy formation and evolution. In particular, the baryon cycle is a critical component of the complex interplay between the accretion of material, the physics that drives the buildup of stars out of this gas, the subsequent chemical evolution and feedback processes, and the reionisation of the Universe. ALMA to date offers an unprecendented combination of sensitivity, spatial resolution and frequency coverage in the millimetric (mm) and sub-mm domain. Together, these powerful capabilities have transformed our understanding of the (sub)mm extragalactic sky, enabled detailed studies the ISM of both local and the highest-redshift galaxies and redefined our view of the global dust and gas properties of the Universe over large look-back times. These discoveries have in turn both triggered and provided new constraints on theoretical models of galaxy formation and evolution in the early Universe. In this talk, I will point out some of the ALMA results that have shaped this new era. I also propose to highlight what might be possible for studies of the cold and distant Universe during the WSU commissioning phase as well as when the upgrade is completed.
Long orbital period pre-polars containing an early K-type donor stars. Bottleneck accretion mechanism in action
Creators: name: Tovmassian, G.
name: Gonzalez-Buitrago, D.
name: Zharikov, S.
name: Reichart, D. E.
name: Haislip, J. B.
name: Ivarsen, K. M.
name: LaCluyze, A. P.
name: Moore, J. P.
name: Miroshnichenko, A. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We studied two objects identified as a Cataclysmic Variables (CVs) with periods exceeding the natural boundary for Roche lobe filling ZAMS secondary stars. We present observational results for V1082 Sgr with 20.82 h orbital period, an object that shows low luminosity state, when its flux is totally dominated by a chromospherically active K- star with no signs of ongoing accretion. Frequent accretion shut-offs, together with characteristics of emission lines in a high state, indicate that this binary system is probably detached and the accretion of matter on the magnetic white dwarf takes place through stellar wind from the active donor star via coupled magnetic fields. Its observational characteristics are surprisingly similar to V479 And, a 14.5 h binary system. They both have early K-type stars as a donor star. We argue, that similar to the shorter period pre-polars containing M-dwarfs, these are detached binaries with strong magnetic components. Their magnetic fields are coupled, allowing enhanced stellar wind from the K star to be captured and channeled through the bottleneck connecting the two stars onto the white dwarf's magnetic pole, mimicking a magnetic CV. Hence, they become interactive binaries before they reach contact. This will help to explain an unexpected lack of systems possessing white dwarfs with strong magnetic fields among detached white + red dwarf systems.
description: 15 pages, 9 figures, accepted for publication by The Astrophysical Journal
title: Arbre_5
Creators: name: Ségolène Delamare
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2023
Subjects: subject: arborglyphe

description: arborglyphe
description: 1 fichier 3D (ply), 20 fichiers image (jpg)
SUSBIND Industry-led White-Paper for EU Ecolabel Criteria for Wooden Furniture Revision
Creators: name: RTDS Group, CE Delft
Publisher: name: Zenodo
Year: 2022

description: The BBI-JU and Horizon 2020 SUSBIND project has published a White Paper based around a survey of furniture industry participants and consumers that addressed multiple aspects of advancing on the framework proposal of the revision of the EU Ecolabel which has been described as a “patchwork of regulatory instruments”. Many of the questions mentioned above are addressed in the SUSBIND survey responses that provide an insight into the thinking behind the possible behaviour of industry and consumer participants. The survey’s questionnaire considered the many European Union Parliamentary initiatives and research papers already in existence to further understand where the barriers, benefits and opportunities lie for certified sustainable products within the EU.
description: {"references": ["https://susbind.eu/susbind-publishes-key-market-insights-to-eu-ecolabel-criteria-for-wooden-furniture-revision/"]}
Anomalous reactivity of supported V2O5 nanoparticles for propane oxidative dehydrogenation: influence of the vanadium oxide precursor
Creators: name: Carrero, Carlos A.
name: Keturakis, Christopher J.
name: Orrego, Andres
name: Schomäcker, Reinhard
name: Wachs, Israel E.
Publisher: name: Technische Universität Berlin
Year: 2013
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften

description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
description: This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
description: The oxidative dehydrogenation (ODH) of propane to propylene by supported vanadia catalysts has received much attention in recent years, but different reactivity trends have been reported for this catalytic reaction system. In the present investigation, the origin of these differing trends are investigated with synthesis of supported V/SiO2, V/TiO2, and V/Al2O3 catalysts prepared with three different vanadium oxide precursors (2-propanol/vanadyl triisopropoxide [VO(O-Pri)3] (VTI), oxalic acid/ammonium metavanadate [NH4VO3] (AMV), and toluene/vanadyl acetylacetonate [VO(C5H7O2)2] (VAA)) in order to elucidate the influence of the precursor on supported vanadia phase and propane ODH activity. In situ Raman spectroscopy revealed that the choice of vanadium precursor does not affect the dispersion of the supported vanadium oxide phase below 4 V nm−2 (0.5 monolayer coverage), where only isolated and oligomeric surface VO4 species are present, and only the AMV precursor favors crystalline V2O5 nanoparticle (NP) formation below monolayer coverage (8 V nm−2). The propane ODH specific reactivity trend demonstrated that there is no significant difference in TOF for the isolated and oligomeric surface VO4 sites. Surprisingly, V2O5 NPs in the ∼1–2 nm range exhibit anomalously high propane ODH TOF values for the supported vanadia catalysts. This was found for all supported vanadium oxide catalysts examined. This comparative study with different V-precursors and synthesis methods and oxide supports finally resolves the debate in the catalysis literature about the dependence of TOF on the surface vanadium density that is related to the unusually high reactivity of small V2O5 NPs.
Simulated stellar kinematics studies of high-redshift galaxies with the HARMONI Integral Field Spectrograph
Creators: name: Kendrew, S.
name: Zieleniewski, S.
name: Houghton, R. C. W.
name: Thatte, N.
name: Devriendt, J.
name: Tecza, M.
name: Clarke, F.
name: O'Brien, K.
name: Häussler, B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present a study into the capabilities of integrated and spatially resolved integral field spectroscopy of galaxies at z=2-4 with the future HARMONI spectrograph for the European Extremely Large Telescope (E-ELT) using the simulation pipeline, HSIM. We focus particularly on the instrument's capabilities in stellar absorption line integral field spectroscopy, which will allow us to study the stellar kinematics and stellar population characteristics. Such measurements for star-forming and passive galaxies around the peak star formation era will provide a critical insight into the star formation, quenching and mass assembly history of high-z, and thus present-day galaxies. First, we perform a signal-to-noise study for passive galaxies at a range of stellar masses for z=2-4, assuming different light profiles; for this population we estimate integrated stellar absorption line spectroscopy with HARMONI will be limited to galaxies with M_star > 10^10.7 solar masses. Second, we use HSIM to perform a mock observation of a typical star-forming 10^10 solar mass galaxy at z=3 generated from the high-resolution cosmological simulation NutFB. We demonstrate that the input stellar kinematics of the simulated galaxy can be accurately recovered from the integrated spectrum in a 15-hour observation, using common analysis tools. Whilst spatially resolved spectroscopy is likely to remain out of reach for this particular galaxy, we estimate HARMONI's performance limits in this regime from our findings. This study demonstrates how instrument simulators such as HSIM can be used to quantify instrument performance and study observational biases on kinematics retrieval; and shows the potential of making observational predictions from cosmological simulation output data.
description: accepted for publication in MNRAS
True Triax Rock tests at GUT
Creators: name: Welsing, Leonie Maria
name: Kewel, Max
name: Jalali, Mohammadreza
name: Feinendegen, Martin
name: Amann, Florian
name: Fuentes Gutierrez, Raul
Publisher: name: RWTH Aachen University
Year: 2022

description: 3. Tage der Standortauswahl, Aachen, Germany, 8 Jun 2022 - 10 Jun 2022
Edith Stein bringt die Erinnerung an die Schoah ins Herz der Kirche
Creators: name: Deselaers, Manfred
Publisher: name: Edith Stein Jahrbuch
Year: 2025

description: 1647267919
description: Edith Stein Jahrbuch, V. 21 (2015): Edith Stein Jahrbuch, Band 21
Observability of Higgs Mode in a system without Lorentz invariance
Creators: name: Han, Xinloong
name: Liu, Boyang
name: Hu, Jiangping
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the observability of the Higgs mode in BEC-BCS crossover. The observability of Higgs mode is investigated by calculating the spectral weight functions of the amplitude fluctuation below the critical transition temperature. At zero temperature, we find that there are two sharp peaks on the spectral function of the amplitude fluctuation attributed to Goldstone and Higgs modes respectively. As the system goes from BCS to BEC side, there is strong enhancement of spectral weight transfer from the Higgs to Goldstone mode. However, even at the unitary regime where the Lorentz invariance is lost, the sharp feature of Higgs mode still exists. We specifically calculate the finite temperature spectral function of amplitude fluctuation at the unitary regime and show that the Higgs mode is observable at the temperature that present experiments can reach.
description: 5 pages, 2 figures
Irregular Vertex Operators for Irregular Conformal Blocks
Creators: name: Polyakov, Dimitri
name: Rim, Chaiho
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct the free field representation of irregular vertex operators of arbitrary rank which generates simultaneous eigenstates of positive modes of Virasoro and W symmetry generators. The irregular vertex operators turn out to be the exponentials of combinations of derivatives of Liouville or Toda fields, creating irregular coherent states. We compute examples of correlation functions of these operators and study their operator algebra.
description: 17 pages, typos corrected, references and acknowledgements added
A Rigorous Analysis of AODV and its Variants
Creators: name: Höfner, Peter
name: van Glabbeek, Rob
name: Tan, Wee Lum
name: Portmann, Marius
name: McIver, Annabelle
name: Fehnker, Ansgar
Publisher: name: arXiv
Year: 2015
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: C.2.2; F.3.1; F.3.2

description: In this paper we present a rigorous analysis of the Ad hoc On-Demand Distance Vector (AODV) routing protocol using a formal specification in AWN (Algebra for Wireless Networks), a process algebra which has been specifically tailored for the modelling of Mobile Ad Hoc Networks and Wireless Mesh Network protocols. Our formalisation models the exact details of the core functionality of AODV, such as route discovery, route maintenance and error handling. We demonstrate how AWN can be used to reason about critical protocol correctness properties by providing a detailed proof of loop freedom. In contrast to evaluations using simulation or other formal methods such as model checking, our proof is generic and holds for any possible network scenario in terms of network topology, node mobility, traffic pattern, etc. A key contribution of this paper is the demonstration of how the reasoning and proofs can relatively easily be adapted to protocol variants.
description: arXiv admin note: substantial text overlap with arXiv:1312.7645
Broadband observations at 3mm: The role of the environment on star- and disk-formation
Creators: name: Pineda, Jaime
Publisher: name: Zenodo
Year: 2024

description: The star- and disk-formation process involves balancing gravity, turbulence, and magnetic fields. Turbulence and magnetic fields attempt to slow down the gravitational collapse. Thanks to high-angular resolution interferometric observations, much progress has been made in studying the disk properties. Unfortunately, little progress has been made in understanding the role of the environment in the formation and evolution of star- and disks. I present NOMEA observations at 3mm. Thanks to the instantaneous 16 GHz bandwidth, we carry out different goals simultaneously. I will show the results of three different aspects enabled by these observations: (1) the first systematic estimate of the number of streamers on embedded protostars, (2) the first large-scale cosmic ray ionization rate and electron fraction maps, and (3) a determination of the power spectrum of turbulence over more than 2-orders of magnitude for ions and neutrals down to the ambipolar diffusion scale. These results show that (1) the delivery of mass down to disk scales is highly asymmetric, with streamers playing an important role, (2) clear evidence for locally generated cosmic rays which will affect the coupling between magnetic fields and gas, and (3) we show a clear power-law behavior down to mpc scales but without evidence for the ambipolar diffusion scale. These results show the power of broadband observations to explore the role of the environment in star- and disk-formation, which will be enabled by WSU.
Flexible users, where are you?
Creators: name: Valor, Carmen
name: Martino, Juan
name: Ruiz, Leonor
Publisher: name: Zenodo
Year: 2022
Subjects: ReDREAM
energy flexibility
demand response
engagement strategies

description: Growing use of renewable energy sources demand strategies for flexibilizing users’ demand (Sloot et al., 2021). This flexibilization entails a major change in users’ role and several barriers have been already noted for such shift (Parrish et al., 2020; Schuitema et al., 2017). Experimental approaches in the form of sand-boxes or pilot projects (Mlecnik et al., 2020) are being implemented to test and measure behavioural approaches that can counteract these barriers and, eventually, enable flexible demand. These experiments are fundamental as regulation, policy-making, and business model developments are based upon their results. Whereas much research has examined how consumers behave once they have been engaged in one of these experiments the problem of how to recruit users to participate in these experiments is usually glossed over, despite the importance of recruitment in the engagement journey (Darby, 2020; Parrish et al., 2019). Recruitment also conditions the generalizability of results, since the recruitment strategy affects users’ behaviour in the experiment results (Parrish et al., 2019). Recruitment is especially difficult in the case of flexibility-focused experiments, since only users with flexible equipment are entitled to participate (Darby, 2020). Use of algorithms to identify the best prospects is a sound strategy (Martinez-Pabon et al., 2017), but not feasible for those stakeholders lacking users’ smart meter data. To identify and classify recruitment strategies, we conducted four participatory, co-creation-based workshops with 23 experts in demand-response and electricity markets from different European countries, as part of the EU funded project ReDream. As a result of these sessions, a recruitment strategy was inductively identified. The strategy particularly focused on how to identify participants with flexible equipment and how to build motivation to entice participation. The results of this study are particularly relevant for researchers and organizations targeting users to participate in flexibility programs.
InGaAs mHEMT MMIC Technology for Low Noise Amplifiers in Radio Astronomy
Creators: name: Pütz, Patrick
name: Fabian Thome
name: Arnulf Leuther
name: Gundolf Wieching
Publisher: name: Zenodo
Year: 2024

description: The Alma WSU will provide the unique combination of high angular resolution and sensitive observations with a large bandwidth at high spectral resolution that is crucial for the chemical inventory and physical characterization of planet forming regions.
The focusing cubic NLS with inverse-square potential in three space dimensions
Creators: name: Killip, Rowan
name: Murphy, Jason
name: Visan, Monica
name: Zheng, Jiqiang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider the focusing cubic nonlinear Schrödinger equation with inverse-square potential in three space dimensions. We identify a sharp threshold between scattering and blowup, establishing a result analogous to that of Duyckaerts, Holmer, and Roudenko for the standard focusing cubic NLS. We also prove failure of uniform space-time bounds at the threshold.
description: 35 pages
Neptune's Orbital Migration Was Grainy, Not Smooth
Creators: name: Nesvorny, David
name: Vokrouhlicky, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Kuiper belt is a population of icy bodies beyond the orbit of Neptune. The complex orbital structure of the Kuiper belt, including several categories of objects inside and outside of resonances with Neptune, emerged as a result of Neptune's migration into an outer planetesimal disk. An outstanding problem with the existing migration models is that they invariably predict excessively large resonant populations, while observations show that the non-resonant orbits are in fact common (e.g., the main belt population is 2-4 times larger than Plutinos in the 3:2 resonance). Here we show that this problem can resolved if it is assumed that Neptune's migration was grainy, as expected from scattering encounters of Neptune with massive planetesimals. The grainy migration acts to destabilize resonant bodies with large libration amplitudes, a fraction of which ends up on stable non-resonant orbits. Thus, the non-resonant--to--resonant ratio obtained with the grainy migration is higher, up to ~10 times higher for the range of parameters investigated here, than in a model with smooth migration. The grainy migration leads to a narrower distribution of the libration amplitudes in the 3:2 resonance. The best fit to observations is obtained when it is assumed that the outer planetesimal disk below 30 AU contained 1000-4000 Plutos, or ~1000 bodies twice as massive as Pluto. We find that the probability for an outer disk object to end up on a stable orbit in the Kuiper belt is ~10^{-3}. Together, these results are consistent with having only two (known) Pluto-mass bodies in the Kuiper belt today (Pluto and Eris). The combined mass of Pluto-class objects in the original disk was ~2-8 Earth masses (M_Earth), which represents 10-40% of the estimated disk mass (M_disk ~ 20 M_Earth).
description: The Astrophysical Journal
Zum 500. Geburtstag Teresas von Ávila am 28. März 2015
Creators: name: Stein, Edith
name: Teresa, De Jesús
Publisher: name: Edith Stein Jahrbuch
Year: 2025

description: 1647267889
description: Edith Stein Jahrbuch, V. 21 (2015): Edith Stein Jahrbuch, Band 21
The Dirichlet problem for p-harmonic functions with respect to arbitrary compactifications
Creators: name: Björn, Anders
name: Björn, Jana
name: Sjödin, Tomas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 31E05 (Primary), 30L99, 31C45, 35J66, 35J92, 49Q20 (Secondary)

description: We study the Dirichlet problem for p-harmonic functions on metric spaces with respect to arbitrary compactifications. A particular focus is on the Perron method, and as a new approach to the invariance problem we introduce Sobolev-Perron solutions. We obtain various resolutivity and invariance results, and also show that most functions that have earlier been proved to be resolutive are in fact Sobolev-resolutive. We also introduce (Sobolev)-Wiener solutions and harmonizability in this nonlinear context, and study their connections to (Sobolev)-Perron solutions, partly using Q-compactifications.
Search for Gamma-ray Emission from Dark Matter Annihilation in the Small Magellanic Cloud with the Fermi Large Area Telescope
Creators: name: Caputo, Regina
name: Buckley, Matthew R.
name: Martin, Pierrick
name: Charles, Eric
name: Brooks, Alyson M.
name: Drlica-Wagner, Alex
name: Gaskins, Jennifer M.
name: Wood, Matthew
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Small Magellanic Cloud (SMC) is the second-largest satellite galaxy of the Milky Way and is only 60 kpc away. As a nearby, massive, and dense object with relatively low astrophysical backgrounds, it is a natural target for dark matter indirect detection searches. In this work, we use six years of Pass 8 data from the Fermi Large Area Telescope to search for gamma-ray signals of dark matter annihilation in the SMC. Using data-driven fits to the gamma-ray backgrounds, and a combination of N-body simulations and direct measurements of rotation curves to estimate the SMC DM density profile, we found that the SMC was well described by standard astrophysical sources, and no signal from dark matter annihilation was detected. We set conservative upper limits on the dark matter annihilation cross section. These constraints are in agreement with stronger constraints set by searches in the Large Magellanic Cloud and approach the canonical thermal relic cross section at dark matter masses lower than 10 GeV in the $b\bar{b}$ and $τ^+τ^-$ channels.
description: 17 pages, 11 figures. Accepted by PRD
The prospects of the ALMA wideband sensitivity upgrade for the study of nearby galaxies
Creators: name: Querejeta, Miguel
Publisher: name: Zenodo
Year: 2024

description: ALMA is revolutionising our understanding of nearby galaxies by mapping large areas with resolutions that approach the scales of individual molecular clouds, primarily with bright molecular lines such as CO(2-1). This is yielding an unprecedented view on how the interstellar medium (ISM) is organised around dynamical structures such as rings, bars, and spiral arms. The use of additional lines and isotopologues, such as HCN or 13CO, provide an extra layer that permits us to gauge key properties such as gas density. Yet, to fully characterise the physical conditions of the ISM in nearby galaxies, it is crucial to map simultaneously as many lines as possible, including not only reliable dense gas tracers, but also tracers of shocks and other physical processes. In this talk, I will review some of the main science goals that can be tackled with the ALMA wideband sensitivity upgrade in the field of nearby galaxies. These include efficient multi-line and isotopologue mapping, as well as improved sensitivity to mm continuum. I will provide some examples of how NOEMA can already achieve some of these goals, which sets the path that ALMA could follow.
Moutard transform approach to generalized analytic functions with contour poles
Creators: name: Grinevich, P. G.
name: Novikov, R. G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Complex Variables (math.CV)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We continue studies of Moutard-type transforms for the generalized analytic functions started in arXiv:1510.08764, arXiv:1512.00343. In particular, we show that generalized analytic functions with the simplest contour poles can be Moutard transformed to the regular ones, at least, locally. In addition, the later Moutard-type transforms are locally invertible.
description: LaTeX, 22 pages
Protoplanetary disks in the hostile environment of Carina
Creators: name: Mesa-Delgado, A.
name: Zapata, L.
name: Henney, W. J.
name: Puzia, T. H.
name: Tsamis, Y. G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report the first direct imaging of protoplanetary disks in the star-forming region of Carina, the most distant, massive cluster in which disks have been imaged. Using the Atacama Large Millimeter/sub-millimeter Array (ALMA), disks are observed around two young stellar objects (YSOs) that are embedded inside evaporating gaseous globules and exhibit jet activity. The disks have an average size of 120 AU and total masses of 30 and 50 M_Jup. Given the measured masses, the minimum timescale required for planet formation (~1-2 Myr) and the average age of the Carina population (~1-4 Myr), it is plausible that young planets are present or their formation is currently ongoing in these disks. The non-detection of millimeter emission above the 4sigma threshold (~7 M_Jup) in the core of the massive cluster Trumpler~14, an area containing previously identified proplyd candidates, suggest evidence for rapid photo-evaporative disk destruction in the cluster's harsh radiation field. This would prevent the formation of giant gas planets in disks located in the cores of Carina's dense sub-clusters, whereas the majority of YSO disks in the wider Carina region remain unaffected by external photo-evaporation.
description: 6 pages, 2 figures. Accepted for publication in ApJ Letters