cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Magnetic Early B-type Stars II: stellar atmospheric parameters in the era of Gaia
Creators: name: Shultz, M. E.
name: Wade, G. A.
name: Rivinius, Th.
name: Alecian, E.
name: Neiner, C.
name: Petit, V.
name: Wisniewski, J. P.
name: MiMeS, the
name: Collaborations, BinaMIcS
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Atmospheric parameters determined via spectral modelling are unavailable for many of the known magnetic early B-type stars. We utilized high-resolution spectra together with NLTE models to measure effective temperatures $T_{\rm eff}$ and surface gravities $\log{g}$ of stars for which these measurements are not yet available. We find good agreement between our $T_{\rm eff}$ measurements and previous results obtained both photometrically and spectroscopically. For $\log{g}$, our results are compatible with previous spectroscopic measurements; however, surface gravities of stars previously determined photometrically have been substantially revised. We furthermore find that $\log{g}$ measurements obtained with HARPSpol are typically about 0.1 dex lower than those from comparable instruments. Luminosities were determined using Gaia Data Release 2 parallaxes. We find Gaia parallaxes to be unreliable for bright stars ($V<6$ mag) and for binaries; in these cases we reverted to Hipparcos parallaxes. In general we find luminosities systematically lower than those previously reported. Comparison of $\log{g}$ and $\log{L}$ to available rotational and magnetic measurements shows no correlation between either parameter with magnetic data, but a clear slow-down in rotation with both decreasing $\log{g}$ and increasing $\log{L}$, a result compatible with the expectation that magnetic braking should lead to rapid magnetic spindown that accelerates with increasing mass-loss.
description: 21 pages, 3 tables, 15 figures, accepted for publication in MNRAS
title: Ordnung für die Gemeinsame Zentrale Einrichtung Forschungszentrum Küste (FZK) der Universität Hannover und der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig
Year: 1996
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 71
Searching for new variable white dwarfs: The discovery of the three new pulsating and three new binary systems
Creators: name: Amaral, Larissa Antunes
name: Vučković, Maja
name: Pelisoli, Ingrid
name: Istrate, Alina
name: Kepler, S. O.
name: Hibbert, Jacob M.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In recent years, approximately 150 low-mass white dwarfs (WDs), typically with masses below 0.4 solar masses, have been discovered. Observational evidence indicates that most of these low-mass WDs are found in binary systems, supporting binary evolution scenarios as the primary formation pathway.
 A few extremely low-mass (ELM) WDs in this population have also been found to be pulsationally variable. In this work, we present a comprehensive analysis aimed at identifying new variable low-mass WDs. From our candidate selection, we observed 16 objects identified within the ZZ Ceti instability strip. These objects were observed over multiple nights using high-speed photometry from the SOAR/Goodman and SMARTS-1m telescopes.
 Our analysis led to the discovery of three new pulsating WDs: one pulsating ELM, one low-mass WD, and one ZZ Ceti star. Additionally, we identified three objects in binary systems: two with ellipsoidal variations in their light curves, one of which is likely a pre-ELM star, and a third showing a reflection effect.
Rhombissus Gnezdilov et Hayashi 2016
Creators: name: Gnezdilov, Vladimir M.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Issidae
Rhombissus

description: Genus Rhombissus Gnezdilov et Hayashi, 2016
 Rhombissus Gnezdilov et Hayashi, 2016: 47. Type species: Issus harimensis Matsumura, 1913, by original designation.
description: Published as part of Gnezdilov, Vladimir M., 2022, New Synonymies And New Combinations For Chinese Issidae (Hemiptera: Auchenorrhyncha: Fulgoroidea), pp. 45-52 in Acta Zoologica Academiae Scientiarum Hungaricae 68 (1) on page 48, DOI: 10.17109/AZH.68.1.45.2022, http://zenodo.org/record/7160706
Evolution of Fluctuations during Graceful Exit in String Cosmology
Creators: name: Kawai, Shinsuke
name: Soda, Jiro
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the evolution of fluctuations in a universe dominated by a scalar field coupled to the Gauss-Bonnet term. During the graceful exit, we found non-negligible enhancements of both curvature perturbation and gravitational wave in the long wavelength limit, and we also found a short wavelength instability for steep background superinflation just after the completion of the graceful exit. This result for one possible graceful exit mechanism would provide a significant implication on the primordial spectrum from the string cos mology.
description: 5 pages, 5 figures, Revtex, to appear in Phys. Lett. B
Trends in Youth Activity in New Zealand from 1985-2004
Creators: name: Stillman, Steven
name: Stillman, Steven
Publisher: name: Unknown
Year: 2006
Subjects: subject: Labor and Human Capital
subject: Research Methods/ Statistical Methods
subject: youth
subject: New Zealand
subject: employment
subject: education
subject: inactivity

description: Limited information is currently available on youth activity in New Zealand. This paper uses data primarily from the Household Economic Survey (HES) to provide a comprehensive picture of the activities undertaken by New Zealand youth during this transition to adulthood from 1985 to 2004. It presents evidence on both labour market and education activities and the intersection of the two. It also places these results in context by comparing the findings for New Zealand to similar evidence for Australia. There has been steady growth in study rates throughout the sample period. The fraction of youth only employed increases steadily with age before levelling-off at age 24 for individuals born after 1969 and at age 18 for older cohorts, while the fraction only studying declines steadily with age, but at a slower rate for each successive cohort. The fraction both employed and studying has increased with each successive cohort, but declines with age after age 16 or 17 within cohorts. Business cycles appear to have little impact on the fraction only employed or only studying, but have larger effects on the fraction employed and studying and, in particular, on inactivity.
Forest management practice for enhancing carbon sequestration in national forests of Korea
Creators: name: Hyunjin An
name: Seok, Hyun Deok
name: Sang-Min Lee
name: Junyeong Choi
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: This paper examines forest management planning and its possible outcomes using linear programing (LP). More specifically, the most appropriate forest harvesting schedule was selected that can maximize the carbon sequestration in the current forest areas considering forest manager’s income. The LP model allows the managers to segment forests into cutting units under rotation basis logging activities. Through harvest prescription from LP, we derived the balanced age-class distribution that constitutes improved conditions for sustainable use of forest resource. However, the solutions from LP did not achieve normal forests with perfectly even aged distribution. Instead, it produced a left-skewed age-class distribution due to the cost restriction of management ruling out the achievement of a normal forest as an optimal solution. The results from our LP model also confirm that the forest management activities will enhance yearly carbon sequestration in forests for all scenarios compared to baseline, and the shorter rotation ages tend to call for more carbon sequestration and economic profit. However, it is difficult to ensure that 50 years rotation is the optimal rotation age for the target forests, since we do not consider the benefit of biodiversity conservation.
Background exoplanet candidates in the original Kepler field
Creators: name: Bienias, John
name: Szabo, Robert
Publisher: name: arXiv
Year: 2025
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. During the primary Kepler mission, between 2009 and 2013, about 150,000 pre-selected targets were observed with a 29.42 minute-long cadence. However, a survey of background stars that fall within the field of view (FOV) of the downloaded apertures of the primary targets has revealed a number of interesting objects. In previous papers we have presented surveys of short period Eclipsing Binaries and RR Lyrae stars.
 Aims. The current survey of the Kepler background is concentrated on identifying longer-period eclipsing binaries and pulsating stars. These will be the subject of later papers. In the course of this survey, in addition to eclipsing binaries and pulsating stars, seven exoplanet candidates have been uncovered and in this paper we report on these candidates.
 Methods. We use Lomb-Scargle (LS), light curve transit search and Phase Dispersion Minimisation (PDM) methods to reveal pixels that show significant periodicities, resulting in the identification of the seven exoplanet candidates. We have prepared the light curves for analysis using Pytransit software and cross matched the pixel coordinates with Gaia and other catalogues to identify the sources.
 Results.We identify seven Hot Jupiter exoplanet candidates with planet radii ranging from 0.8878 to 1.5174 RJup and periods ranging from 2.5089 to 4.7918 days.
description: 10 pages, 13 figures, 3 appendices (available on https://zenodo.org/ with links in paper)
Project AMIGA: Distance and Metallicity Gradients Along Andromeda's Giant Southern Stream from the Red Clump
Creators: name: Cohen, Roger E.
name: Kalirai, Jason S.
name: Gilbert, Karoline M.
name: Guhathakurta, Puragra
name: Peeples, Molly S.
name: Lehner, Nicolas
name: Brown, Thomas M.
name: Bianchi, Luciana
name: Barger, Kathleen A.
name: O'Meara, John M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Giant Southern Stream (GSS) of M31, a keystone signature of a major accretion event, yields crucial constraints on M31 formation and evolution models. Currently, our understanding of the GSS, in terms of both its geometry and its chemistry, results from either wide-field imaging probing only a few magnitudes below the red giant branch tip, or deep imaging or spectroscopy of isolated regions. Here, we take an alternative approach, using Hubble Space Telescope (HST) imaging to characterize the horizontal branch red clump (RC) using unbinned maximum likelihood fits to luminosity functions (LFs) from observed color-magnitude diagrams (CMDs). Comparing the RC mean magnitude across three fields at projected distances of 21, 52 and 80 kpc from M31, we find a line of sight distance gradient identical to recent literature measurements in fields along the core. We also find tentative evidence that the line of sight distance dispersion increases with projected distance from M31. Meanwhile, the metallicity in the 52 kpc field westward of the GSS core is at least as high as that in the 21 kpc GSS core field, and the peak colors of the RC in these two fields imply identical metallicities to within 0.2 dex. We discuss implications for distance and metallicity gradients both along and perpendicular to the GSS in the context of recent ground-based photometric and spectroscopic results, including evidence for a dropoff in metallicity moving westward from the GSS, as well as prospects for further constraining stellar populations in the vicinity of the GSS.
description: 30 pages, 14 figures. AJ accepted. Figure quality has been reduced to meet arXiv size limits
Computation of Mass-Outflow Rates From Advective Accretion Disks Around Black Holes
Creators: name: Das, Tapas K.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We self-consistently compute the mass outflow rate from a mass inflow using the conditions in the centrifugal barrier of an advective flow. Our detailed result agrees with the theoretical estimates given in Chakrabarti (1997; astro-ph/9801079).
description: 10 Latex pages including figures. Kluwer Style files included. Appearing in `Observational Evidence for Black Holes in the Universe', ed. Sandip K. Chakrabarti, Kluwer Academic Publishers (DORDRECHT: Holland)
Architecture of Distributed Data Storage for Astroparticle Physics
Creators: name: Kryukov, Alexander
name: Demichev, Andrey
Publisher: name: arXiv
Year: 2018
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: For the successful development of the astrophysics and, accordingly, for obtaining more complete knowledge of the Universe, it is extremely important to combine and comprehensively analyze information of various types (e.g., about charged cosmic particles, gamma rays, neutrinos, etc.) obtained by using divers large-scale experimental setups located throughout the world. It is obvious that all kinds of activities must be performed continually across all stages of the data life cycle to help support effective data management, in particular, the collection and storage of data, its processing and analysis, refining the physical model, making preparations for publication, and data reprocessing taking refinement into account. In this paper we present a general approach to construction and the architecture of a system to be able to collect, store, and provide users' access to astrophysical data. We also suggest a new approach to the construction of a metadata registry based on the blockchain technology.
description: 11 pages, 2 figures
Hopf Term for a Two-Dimensional Electron Gas
Creators: name: Volovik, G. E.
name: Yakovenko, V. M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this Comment on the paper by W. Apel and Yu. A. Bychkov, cond-mat/9610040 and Phys. Rev. Lett. 78, 2188 (1997), we draw attention to our prior microscopic derivations of the Hopf term for various systems and to shortcomings of the Apel-Bychkov derivation. We explain how the value of the Hopt term prefactor $Θ$ is expressed in terms of a topological invariant in the momentum space and the quantized Hall conductivity of the system. (See also related paper cond-mat/9703195)
description: RevTeX, 1 page, no figures
Blind focusing through strongly scattering media using wavefront shaping with nonlinear feedback
Creators: name: Osnabrugge, Gerwin
name: Amitonova, Lyubov V.
name: Vellekoop, Ivo M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Scattering prevents light from being focused in turbid media. The effect of scattering can be negated through wavefront shaping techniques when a localized form of feedback is available. Even in the absence of such a localized reporter, wavefront shaping can blindly form a single diffraction-limited focus when the feedback response is nonlinear. We developed and experimentally validated a model that accurately describes the statistics of this blind focusing process. We show that maximizing the nonlinear feedback signal does not always result in the formation of a focus. Using our model, we can calculate the minimal requirements to blindly focus light through strongly scattering media.
description: 13 pages, 4 figures
Quantum fingerprints of classical Ruelle-Pollicot resonances
Creators: name: Pance, Kristi
name: Lu, Wentao
name: Sridhar, S.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: N-disk microwave billiards, which are representative of open quantum systems, are studied experimentally. The transmission spectrum yields the quantum resonances which are consistent with semiclassical calculations. The spectral autocorrelation of the quantum spectrum is shown to be determined by the classical Ruelle-Pollicot resonances, arising from the complex eigenvalues of the Perron-Frobenius operator. This work establishes a fundamental connection between quantum and classical correlations in open systems.
description: 6 pages, 2 eps figures included, submitted to PRL
NEARBY Platform: Algorithm for Automated Asteroids Detection in Astronomical Images
Creators: name: Stefanut, T.
name: Bacu, V.
name: Nandra, C.
name: Balasz, D.
name: Gorgan, D.
name: Vaduvescu, O.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In the past two decades an increasing interest in discovering Near Earth Objects has been noted in the astronomical community. Dedicated surveys have been operated for data acquisition and processing, resulting in the present discovery of over 18.000 objects that are closer than 30 million miles of Earth. Nevertheless, recent events have shown that there still are many undiscovered asteroids that can be on collision course to Earth. This article presents an original NEO detection algorithm developed in the NEARBY research object, that has been integrated into an automated MOPS processing pipeline aimed at identifying moving space objects based on the blink method. Proposed solution can be considered an approach of Big Data processing and analysis, implementing visual analytics techniques for rapid human data validation.
description: IEEE 14th International Conference on Intelligent Computer Communication and Processing (ICCP), Sep 6-8, 2018, Cluj-Napoca, Romania
title: Benutzungsordnung für die Universitätsbibliothek der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Universitätsbibliothek
Year: 1996
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 72
A stellar census in globular clusters with MUSE. Metallicity spread and dispersion among first-population stars
Creators: name: Latour, M.
name: Kamann, S.
name: Martocchia, S.
name: Husser, T. -O.
name: Saracino, S.
name: Dreizler, S.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Multiple populations are ubiquitous in the old massive globular clusters (GCs) of the Milky Way. It is still unclear how they arose during the formation of a GC. The topic of iron and metallicity variations has recently attracted attention with the measurement of iron variations among the primordial population (P1) stars of Galactic GCs. We use the spectra of more than 8000 RGB stars in 21 Galactic GCs observed with MUSE to derive individual stellar metallicities [M/H]. For each cluster, we use the HST photometric catalogs to separate the stars into two main populations (P1 and P2). We measure the metallicity spread within the primordial population of each cluster by combining our metallicity measurements with the stars $Δ_{\rm F275W,F814W}$ pseudo-color. We also derive metallicity dispersions ($σ_{\rm [M/H]}$) for the P1 and P2 stars of each GC. In all but three GCs, we measure a significant correlation between the metallicity and the $Δ_{\rm F275W,F814W}$ pseudo-color of the P1 stars such that stars with larger $Δ_{\rm F275W,F814W}$ have higher metallicities. We measure metallicity spreads that range from 0.03 to 0.24 dex and correlate with the GC masses. As for the intrinsic metallicity dispersions, when combining the P1 and P2 stars, we measure values ranging from 0.02 dex to 0.08 dex that correlate very well with the GC masses. We compared the metallicity dispersion among the P1 and P2 stars and found that the P2 stars have metallicity dispersions that are smaller or equal to that of the P1 stars. We find that both the metallicity spreads of the P1 stars (from the $Δ_{\rm F275W,F814W}$ spread in the chromosome maps) and the metallicity dispersions ($σ_{\rm [M/H]}$) correlate with the GC masses, as predicted by some theoretical self-enrichment models presented in the literature.
description: Accepted for publication in Astronomy and Astrophysics
User Specific Adaptation in Automatic Transcription of Vocalised Percussion
Creators: name: Ramires, António
name: Penha, Rui
name: Davies, Matthew E. P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The goal of this work is to develop an application that enables music producers to use their voice to create drum patterns when composing in Digital Audio Workstations (DAWs). An easy-to-use and user-oriented system capable of automatically transcribing vocalisations of percussion sounds, called LVT - Live Vocalised Transcription, is presented. LVT is developed as a Max for Live device which follows the `segment-and-classify' methodology for drum transcription, and includes three modules: i) an onset detector to segment events in time; ii) a module that extracts relevant features from the audio content; and iii) a machine-learning component that implements the k-Nearest Neighbours (kNN) algorithm for the classification of vocalised drum timbres. Due to the wide differences in vocalisations from distinct users for the same drum sound, a user-specific approach to vocalised transcription is proposed. In this perspective, a given end-user trains the algorithm with their own vocalisations for each drum sound before inputting their desired pattern into the DAW. The user adaption is achieved via a new Max external which implements Sequential Forward Selection (SFS) for choosing the most relevant features for a given set of input drum sounds.
Isotropic cosmological singularities 3: The Cauchy problem for the inhomogeneous conformal Einstein-Vlasov equations
Creators: name: Anguige, K.
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the conformal Einstein equations for massless collisionless gas cosmologies which admit an isotropic singularity. It is shown that the Cauchy problem for these equations is well-posed with data consisting of the limiting particle distribution function at the singularity.
description: LaTeX, 29 pages, no figures
MUSE observations of V1425 Aql reveal an arc-shaped nova shell
Creators: name: Celedón, L.
name: Tappert, C.
name: Schmidtobreick, L.
name: Selman, F.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Nova shells are the remnants of a nova eruption in a cataclysmic variable system. By studying their geometry we can better understand the physical mechanisms that shape them during the nova eruption. A nova shell that challenges our current understanding of these processes is the shell observed around V1425 Aql. It has at least two different components: an inner and symmetric shell, and an outer and asymmetric shell, with the latter expanding faster than the former. The physical reason behind the asymmetric ejecta is not clear. We aim to characterize the properties and differences between these two components to understand the origin behind the unusual shape. We acquired MUSE data to study the spatial position and kinematics of the expanding gas across the shell. Our analysis includes channel maps, position-velocity diagrams, and the reconstruction of the 3D geometry of the nova shell. Several emission lines are detected within the MUSE wavelength coverage, including but not limited to Balmer, Oxygen, Nitrogen, and Helium lines. There are significant differences in the spectra of the inner and outer shells, with the latter being observed only in forbidden transitions, while the inner shows a mix of forbidden and allowed ones. Our analysis reveals that the outer shell has a geometry consistent with an arc-shaped structure that partially encircles the more spherical inner shell. Within the inner shell, clumpy structures start to be noticeable in the lines of H$α$+[Nii]. We have constrained the geometry of the outer shell to an arc-shaped structure, although the physical reason behind its origin is still eluding us. Further monitoring of the evolution of both shells in this object might help to clarify the mechanism behind this unusual configuration.
description: 11 pages, 7 figures, appendix consisting of 2 figures. Acepted for publication in A&A
Improvement of optical image by measurement reduction technique at parametric multiplexing
Creators: name: Balakin, D. A.
name: Chirkin, A. S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the process of parametric optical image amplification, images are formed at new frequencies in addition to the amplified original image. We show that the parametric multiplexing of optical images can be used to produce an image with improved quality. As an example, we study the parametric amplification of an optical image at low-frequency pumping in which multiplexed optical images turn out to be quantum-correlated. Additional improvement is made possible by using the information about the object that is available to the researcher, in particular, about sparsity of its image. To take the available information into account, we apply the measurement reduction technique.
description: 18 pages, 7 figures. arXiv admin note: substantial text overlap with arXiv:1808.07022
title: Organisationsplan für die Technische Universität Braunschweig: Zusammenlegung der Institute für Hochspannungstechnik und für Elektrische Energieanlagen
Creators: name: :None
Publisher: name: Technische Universität Braunschweig
Year: 1996
Subjects: subject: Organisationsplan
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 73
Organic molecules in the protoplanetary disk of DG Tau revealed by ALMA
Creators: name: Podio, L.
name: Bacciotti, F.
name: Fedele, D.
name: Favre, C.
name: Codella, C.
name: Rygl, K. L. J.
name: Kamp, I.
name: Guidi, G.
name: Bianchi, E.
name: Ceccarelli, C.
name: Coffey, D.
name: Garufi, A.
name: Testi, L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Planets form in protoplanetary disks and inherit their chemical compositions. It is thus crucial to map the distribution and investigate the formation of simple organics, such as formaldehyde and methanol, in protoplanetary disks. We analyze ALMA observations of the nearby disk-jet system around the T Tauri star DG Tau in the o-H$_2$CO $3_{1,2}-2_{1,1}$ and CH$_3$OH $3_{-2,2}-4_{-1,4}$ E, $5_{0,5}-4_{0,4}$ A transitions at an unprecedented resolution of $\sim0.15"$, i.e., $\sim18$ au at a distance of 121 pc. The H$_2$CO emission originates from a rotating ring extending from $\sim40$ au with a peak at $\sim62$ au, i.e., at the edge of the 1.3mm dust continuum. CH$_3$OH emission is not detected down to an r.m.s. of 3 mJy/beam in the 0.162 km/s channel. Assuming an ortho-to-para ratio of 1.8-2.8 the ring- and disk-height-averaged H$_2$CO column density is $\sim0.3-4\times10^{14}$ cm$^{-2}$, while that of CH$_3$OH is $<0.04-0.7\times10^{14}$ cm$^{-2}$. In the inner $40$ au no o-H$_2$CO emission is detected with an upper limit on its beam-averaged column density of $\sim0.5-6\times10^{13}$ cm$^{-2}$. The H$_2$CO ring in the disk of DG Tau is located beyond the CO iceline (R$_{\rm CO}\sim30$ au). This suggests that the H$_2$CO abundance is enhanced in the outer disk due to formation on grain surfaces by the hydrogenation of CO ice. The emission peak at the edge of the mm dust continuum may be due to enhanced desorption of H$_2$CO in the gas phase caused by increased UV penetration and/or temperature inversion. The CH$_3$OH/H$_2$CO abundance ratio is $<1$, in agreement with disk chemistry models. The inner edge of the H$_2$CO ring coincides with the radius where the polarization of the dust continuum changes orientation, hinting at a tight link between the H$_2$CO chemistry and the dust properties in the outer disk and at the possible presence of substructures in the dust distribution.
description: 8 pages, 6 figures, accepted for publication on A&A Letters
Rhombissus harimensis
Creators: name: Gnezdilov, Vladimir M.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Issidae
Rhombissus
Rhombissus harimensis

description: Rhombissus harimensis (Matsumura, 1913)
 Issus harimensis Matsumura, 1913: 61.
 Rhombissus brevispinus Che, Zhang et Wang in ZHANG et al. 2020: 359, fig. 143, pl. 27 j–l, syn. n.
 Notes. All important features of the peculiar male genitalia of Rh. harimensis, with an anal tube turned downwards apically, ventral aedeagal hooks with short upper processes, and ventral phallobase lobe with small apical concavity (GNEZDILOV & HAYASHI 2016: figs 1–4) are readily recognizable in the illustrations accompanying the original description of Rh. brevispinus. The fact ZHANG et al. (2020) did not compare their new species with the evidently very closely related Rh. harimaensis suggests that they likely overlooked this species. Therefore, there is no reason to treat the Chinese continental population as a species distinct from the one occurring in the Japanese Islands, even if the latter population is characterized by a somewhat larger size which might be due to island isolation. The synonymy of these two names is accordingly proposed.
description: Published as part of Gnezdilov, Vladimir M., 2022, New Synonymies And New Combinations For Chinese Issidae (Hemiptera: Auchenorrhyncha: Fulgoroidea), pp. 45-52 in Acta Zoologica Academiae Scientiarum Hungaricae 68 (1) on page 48, DOI: 10.17109/AZH.68.1.45.2022, http://zenodo.org/record/7160706
title: Ordnung über die Errichtung und den Betrieb eines Zentralen Chemielagers
Creators: name: :None
Publisher: name: Technische Universität Braunschweig
Year: 1996
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 74
Exploring Sound Sensing Technology to improve Quality of Life in Urban Living
Creators: name: Corrigan-Kavanagh, Emily
Publisher: name: Zenodo
Year: 2021

description: New AI technology that can now automatically analyse and recognise everyday real-world sound scenes and events, presenting promising potential applications in environmental sensing and urban living. Specifically, urban soundscape analysis could be used to monitor and improve soundscapes experienced for people in towns and cities, helping to create new strategies for enhancing quality of life through urban planning and development. However, current research use cases are often unrealistic, lacking appropriate end-user feedback and engagement. In response, this research is employing a range of participatory approaches to gather feedback from stakeholders to realise the full potential benefit of â€œAI for Sound" technology for society and the economy. For example, the world cafÃ© approach was used to explore how people feel about sounds in their locality and how they would like to change them to direct future research directions of the project. A world cafÃ© is a participatory approach typically set in a cafÃ© style environment where participants engage in three 20-minute discussions on a question posed in small groups, ending with a harvest session where everyone collates conclusions drawn from conversations together. In response to the COVID-19 Pandemic, this research employed the world cafÃ© virtually to engage with residents while adhering to UK national lockdown and social distancing restrictions. This method follows the original world cafe style utilising a video conference tool where virtual Breakout Rooms are used to divide participants into small conversation groups on the same call. This allowed the identification of themes around how people would choose to change their urban sound environments and the contexts that facilitate this to direct future research into associated AI for sound solutions. This presentation reports on some of the highlights from the virtual world cafe and outlines plans for forthcoming research.
Conversational Text Extraction with Large Language Models Using Retrieval-Augmented Systems
Creators: name: Roy, Soham
name: Goswami, Mitul
name: Nargund, Nisharg
name: Mohanty, Suneeta
name: Pattnaik, Prasant Kumar
Publisher: name: arXiv
Year: 2025
Subjects: subject: Information Retrieval (cs.IR)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: This study introduces a system leveraging Large Language Models (LLMs) to extract text and enhance user interaction with PDF documents via a conversational interface. Utilizing Retrieval-Augmented Generation (RAG), the system provides informative responses to user inquiries while highlighting relevant passages within the PDF. Upon user upload, the system processes the PDF, employing sentence embeddings to create a document-specific vector store. This vector store enables efficient retrieval of pertinent sections in response to user queries. The LLM then engages in a conversational exchange, using the retrieved information to extract text and generate comprehensive, contextually aware answers. While our approach demonstrates competitive ROUGE values compared to existing state-of-the-art techniques for text extraction and summarization, we acknowledge that further qualitative evaluation is necessary to fully assess its effectiveness in real-world applications. The proposed system gives competitive ROUGE values as compared to existing state-of-the-art techniques for text extraction and summarization, thus offering a valuable tool for researchers, students, and anyone seeking to efficiently extract knowledge and gain insights from documents through an intuitive question-answering interface.
title: Organisationsplan für die Technische Universität Braunschweig: Aufhebung des Magisterstudiengangs "Geographie" in den Fachbereichen für Philosophie, Wirtschafts- und Sozialwissenschaften sowie für Physik und Geowissenschaften
Creators: name: :None
Publisher: name: Technische Universität Braunschweig
Year: 1996
Subjects: subject: Organisationsplan
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 75
Tetrichina Chang et Chen 2020
Creators: name: Gnezdilov, Vladimir M.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Issidae
Tetrichina

description: Genus Tetrichina Chang et Chen, 2020
 Tetrichina Chang et Chen in CHANG et al. 2020 b: 39. Type species: Tetrichina trihamulata Chang et Chen, 2020, by original designation.
 Lunatissus Meng, Qin et Wang in ZHANG et al. 2020: 496, syn. n. Type species: Lunatissus brevis Che, Zhang et Wang, 2020, by original designation.
 Notes. The presence of the peculiar moon-shaped processes of the dorsolateral lobes of the phallobase and the distinct process below the neck of capitulum of style in the species of Tetrichina and Lunatissus (CHANG et al. 2020 b, figs 35, 38, ZHANG et al. 2020, figs 222e, 222h, 223e, 223h) leave no doubt about the identity of these genera; therefore, their subjective synonymy is hereby proposed. According to the structure of the phallobase Tetrichina is closely related to the monotypical genus Yangissus Chen, Zhang et Chang, 2014 known from Guizhou (CHEN et al. 2014), but the latter is well distinguished by the presence of furcate ventral aedeagal hooks (CHEN et al. 2014, fig. 2-82M). The genus Tetrichina is apparently endemic to Hainan Island.
 The date of publication of the work of CHANG et al. (2020 b) is indicated in the first page of the article as 6th August, 2020. Thus, Tetrichina has priority over Lunatissus.
 A comparison of the drawings of the male genitalia of Tetrichina and Lunatissus species in the original publications of CHANG et al. (2020 b), WANG et al. (2020), and ZHANG et al. (2020) revealed the synonymies listed below.
description: Published as part of Gnezdilov, Vladimir M., 2022, New Synonymies And New Combinations For Chinese Issidae (Hemiptera: Auchenorrhyncha: Fulgoroidea), pp. 45-52 in Acta Zoologica Academiae Scientiarum Hungaricae 68 (1) on pages 48-49, DOI: 10.17109/AZH.68.1.45.2022, http://zenodo.org/record/7160706
ХОЖА АҲМАД ЯССАВИЙ ҲИКМАТЛАРИДА ДИДАКТИК ҚАРАШЛАР ИНЪИКОСИ
Creators: name: Ҳошимхонов, Хондамир
Publisher: name: Zenodo
Year: 2024

description: ушбу мақолада Хожа Аҳмад Яссавий ҳикматларидаги ижтимоий – ахлоқий, таълим, тарбия, ибрат, панд, насиҳат, дидактик қарашлари таҳлил этилган. Шунингдек, мутафаккир шеъриятидаги шариат, тариқат, маърифат, ҳақиқат тушунчаларининг диний – тасаввуфий жиҳатлари тадқиқ қилинган.
title: Organisationsplan für den Fachbereich Maschinenbau der Technischen Universität Braunschweig: Umbenennung des Instituts für Verbrennungskraftmaschinen und Flugtriebwerke in Institut für Verbrennungskraftmaschinen
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fachbereich 7
Year: 1996
Subjects: subject: Organisationsplan
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 76
Nucleosynthesis in Advective Accretion Disks Around Galactic and Extra-Galactic Black Holes
Creators: name: Mukhopadhyay, B.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compute the nucleosynthesis of materials inside advective disks around black holes. We show that composition of incoming matter can change significantly depending on the accretion rate and accretion disks. These works are improvements on the earlier works in thick accretion disks of Chakrabarti, Jin & Arnett (1987) in presence of advection in the flow.
description: Latex pages including figures. Kluwer Style files included. Appearing in `Observational Evidence for Black Holes in the Universe', ed. Sandip K. Chakrabarti, Kluwer Academic Publishers (DORDRECHT: Holland)
title: Studienordnung für die Teilstudiengänge Anglistische Literaturwissenschaft, Anglistische Sprachwissenschaft und Amerikanistik (jeweils Haupt- und Nebenfach) im Magisterstudiengang
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fachbereich 9
Year: 1996
Subjects: subject: Studienordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 77
title: Studienordnung für den Teilstudiengang Deutsche Literaturwissenschaft (Haupt- und Nebenfach) im Magisterstudiengang
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fachbereich 9
Year: 1996
Subjects: subject: Studienordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 78
Tetrichina fuscovinclum Wang et Bourgoin 2020
Creators: name: Gnezdilov, Vladimir M.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Issidae
Tetrichina
Tetrichina fuscovinclum

description: Tetrichina fuscovinclum Wang et Bourgoin, 2020
 Tetrichina fuscovinclum Wang et Bourgoin in WANG et al. 2020: 594, figs. 10–24.
 Lunatissus brevis Che, Zhang et Wang in ZHANG et al. 2020: 497, fig. 222, pl. 39 d–f, syn. n.
 Notes. The paper of WANG et al. (2020) was published on the 2nd of October 2020 as indicated on the first page and accordingly T. fuscovinclum has priority over L. brevis. The grammatical gender of the generic name Tetrichina is feminine (CHANG et al. 2020 b); the epithet fuscovinclum is to be treated as a noun in apposition, therefore its ending is not to be changed.
description: Published as part of Gnezdilov, Vladimir M., 2022, New Synonymies And New Combinations For Chinese Issidae (Hemiptera: Auchenorrhyncha: Fulgoroidea), pp. 45-52 in Acta Zoologica Academiae Scientiarum Hungaricae 68 (1) on page 49, DOI: 10.17109/AZH.68.1.45.2022, http://zenodo.org/record/7160706
All that is left is all that matters: the politics of social spending in authoritarian regimes
Creators: name: Panaro, Angelo Vito
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Computational Biology

description: This article investigates the political determinants of social spending in authoritarian regimes, focusing on health and education sectors. The theoretical argument builds on the assumption that dictators use social benefits and services as a tool to acquire political consensus. However, I argue that not all dictators face similar incentives to promote social spending; these incentives ultimately depend on (a) the presence of de jure multiparty elections, (b) the size of the regime-supporting group, and (c) the political ideology of the government. The empirical analysis reveals that, while there is no effect of de jure multiparty elections or ruling coalition size, authoritarian governments legitimizing their position in power through a left-wing ideology are associated with higher levels of public social spending. The results remain robust to different model specifications and thus call for further attention to regimes’ ideological connotations, rather than political institutions, when analysing social policy decisions in authoritarian contexts.
Calculation of Densities of States and Spectral Functions by Chebyshev Recursion and Maximum Entropy
Creators: name: Silver, R. N.
name: Roder, H.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We present an efficient algorithm for calculating spectral properties of large sparse Hamiltonian matrices such as densities of states and spectral functions. The combination of Chebyshev recursion and maximum entropy achieves high energy resolution without significant roundoff error, machine precision or numerical instability limitations. If controlled statistical or systematic errors are acceptable, cpu and memory requirements scale linearly in the number of states. The inference of spectral properties from moments is much better conditioned for Chebyshev moments than for power moments. We adapt concepts from the kernel polynomial approximation, a linear Chebyshev approximation with optimized Gibbs damping, to control the accuracy of Fourier integrals of positive non-analytic functions. We compare the performance of kernel polynomial and maximum entropy algorithms for an electronic structure example.
description: 8 pages RevTex, 3 postscript figures
Exploring Attitudes and Perceptions of the Digital Human Body and mHealth apps for Weight Loss: A Thematic Analysis
Creators: name: Taylor, Lauren
Publisher: name: Zenodo
Year: 2021

description: To explore non-users perceptions of a realistic and tailored representation of an anatomical body (Digital Twin), which provides normative and risk information on a mobile health app. The aim was to investigate potential mechanisms important for behaviour change (particularly weight management). Design
 A qualitative methodology was used to explore the experiences of people, in this case non-users wanting to self-manage their health. Method
 Semi-structured interviews were carried out using Zoom. An explorative and participant-led approach was taken to allow the participant to express what was important to them. Twenty participants who had not used the Digital twin were recruited (13 females and 7 males; mean age was 30). The interviews were transcribed verbatim and analysed using Thematic Analysis. Results
 Four main themes were developed: Psychosocial initiators of behaviour change (health beliefs and social support); psychosocial facilitators or maintenance of behaviour (usefulness, cues to action and tailoring); barriers to mHealth app use (biases and sharing information); barriers to maintenance of behaviour change (adverse reactions, loss of motivation and sociocultural factors). The results will inform the design of an intervention for weight loss using the Digital Twin. Conclusion
 Overall, the participants responded positively to the concept of the Digital Twin. It was suggested that the Digital Twin should be tailored to represent their personalised health information and BMI. These results will feed into an intervention designed to use the Digital Twin to initiate and maintain weight behaviour change and will further our understanding of using such technology in behaviour change.
title: Studienordnung für den Teilstudiengang Germanistische Linguistik (Haupt- und Nebenfach) im Magisterstudiengang
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fachbereich 9
Year: 1996
Subjects: subject: Studienordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 79
How does the electric current propagate through the fully-hydrogenated borophene?
Creators: name: An, Yipeng
name: Jiao, Jutao
name: Hou, Yusheng
name: Wang, Hui
name: Wu, Dapeng
name: Wang, Tianxing
name: Fu, Zhaoming
name: Xu, Guoliang
name: Wu, Ruqian
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We study the electronic transport properties of two-dimensional (2D) fully-hydrogenated borophene (namely, borophane), using the density functional theory and non-equilibrium Green's function approaches. Borophane shows a perfect electrical transport anisotropy and is promising for applications. Along the peak- or equivalently the valley-parallel direction, the 2D borophane exhibits a metallic characteristic and its current-voltage (I-V) curve shows a linear behavior, corresponding to the ON state in borophane-based nano-switch. In this case, electrons mainly propagate via the B-B bonds along the linear boron chains. In contrast, the electron transmission is almost forbidden along the perpendicular buckled direction (i.e., the OFF state), due to its semi-conductor property. Our work demonstrates that 2D borophane could combine the metal and semiconductor features and can be a promising candidate of nano-switching materials with stable structure and high ON/OFF ratio.