cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Signatures for Black Hole production from hadronic observables at the Large Hadron Collider
Creators: name: Humanic, Thomas J.
name: Koch, Benjamin
name: Stoecker, Horst
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The concept of Large Extra Dimensions (LED) provides a way of solving the Hierarchy Problem which concerns the weakness of gravity compared with the strong and electro-weak forces. A consequence of LED is that miniature Black Holes (mini-BHs) may be produced at the Large Hadron Collider in p+p collisions. The present work uses the CHARYBDIS mini-BH generator code to simulate the hadronic signal which might be expected in a mid-rapidity particle tracking detector from the decay of these exotic objects if indeed they are produced. An estimate is also given for Pb+Pb collisions.
description: 11 pages, 9 figures, ISHIP 2006 conference proceeding
Executive Functions in SLI (Pauls & Archibald, 2016)
Creators: name: Pauls, Laura J.
name: M. D. Archibald, Lisa
Publisher: name: ASHA journals
Year: 2022
Subjects: Child language acquisition
Speech pathology

description: Purpose: Mounting evidence demonstrates deficits in children with specific language impairment (SLI) beyond the linguistic domain. Using meta-analysis, this study examined differences in children with and without SLI on tasks measuring inhibition and cognitive flexibility. Method: Databases were searched for articles comparing children (4–14 years) with and without SLI on behavioral measures of inhibition or cognitive flexibility. Weighted average effect size was calculated using multilevel modeling to measure potential group differences. Results: The analysis included 46 studies. Of those, 34 included inhibitory control measures and 22 included cognitive flexibility tasks. Children with SLI performed below same-aged peers on both inhibitory control tasks (g = −.56) and cognitive flexibility tasks (g = −.27). Moderator analyses showed no effect of linguistic task demands, participant age, or severity of language impairment on the degree of difference between children with SLI and controls on measures of inhibitory control. Conclusion: Reliable differences between children with and without SLI were found on inhibition and cognitive flexibility tasks. A moderate group effect was found for inhibition tasks, but there was only a small effect for cognitive flexibility tasks. Results of moderator analyses suggest that these deficits are present throughout development despite task demands or severity of linguistic impairment.
Making Sense of Complex Sensor Data Streams
Creators: name: Liu, Rongrong
name: Dresp-Langley, Birgitta
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This concept paper draws from our previous research on individual grip force data collected from biosensors placed on specific anatomical locations in the dominant and non dominant hands of operators performing a robot assisted precision grip task for minimally invasive endoscopic surgery. The specificity of the robotic system on the one hand, and that of the 2D image guided task performed in a real world 3D space on the other, constrain the individual hand and finger movements during task performance in a unique way. Our previous work showed task specific characteristics of operator expertise in terms of specific grip force profiles, which we were able to detect in thousands of highly variable individual data. This concept paper is focused on two complementary data analysis strategies that allow achieving such a goal. In contrast with other sensor data analysis strategies aimed at minimizing variance in the data, it is in this case here necessary to decipher the meaning of the full extent of intra and inter individual variance in the sensor data by using the appropriate statistical analyses, as shown in the first part of this paper. Then, it is explained how the computation of individual spatio temporal grip force profiles permits detecting expertise specific differences between individual users. It is concluded that these two analytic strategies are complementary. They enable drawing meaning from thousands of biosensor data reflecting human grip performance and its evolution with training, while fully taking into account their considerable inter and intra individual variability.
Technology mapping and layout synthesis of DCVS
Creators: name: Wong, Carly
Publisher: name: University of British Columbia
Year: 2008

description: Differential Cascode Voltage Switch (DCVS) logic is a dynamic logic family that has a number of desirable properties. In particular, it is hazard-free, easy to make fully robust path delay-fault testable, and has a number of unique timing properties that make it very suitable for self-timed circuits. This thesis investigates the problem of implementing logic with DCVS, and in particular, the automatic synthesis of DCVS circuits. This task is challenging because DCVS gates are usually significantly more complex than standard static CMOS both in terms of internal connectivity and number of inputs. Most of the work done in circuit synthesis, such as technology mapping and layout synthesis, are not directly applicable to DCVS. We present DMAP, a technology mapping and layout synthesis system for DCVS. The system operates in three steps. First, the combinational circuit is decomposed and partitioned into sizable Boolean function clusters. Secondly, DMAP takes each cluster function, and generates a DCVS cell layout that implements that function. We develop a heuristic algorithm for finding a suitable transistor path to lay out the DCVS pull-down network. Finally, the generated DCVS cells are placed and routed inside the CADENCE environment. Experimental results indicate that DCVS circuits can be implemented with considerably fewer cells than by conventional mapping techniques. Furthermore, the number of nets that need to be wired is typically less than twice the number of nets used in standard mapping. This is better than the intuitive assumption that dual-rail circuits require twice as many wires as their single-rail counterparts. Large DCVS circuits can be feasibly produced. DMAP is a first step towards an integrated system for dynamic circuit synthesis.
[Miscellaneous historical and comparative notes]
Creators: name: Hinton, Leanne
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: Chalcatongo de Hidalgo Mixtec language

description: Two groupings (3 pages each). Reflections on Longacre on Proto-Mixtecan, and on Rench on comparative Oto-Manguean phonology.
Disappearance of antiferromagnetic spin excitations in over-doped La$_{2-x}$Sr$_{x}$CuO$_{4}$
Creators: name: Wakimoto, S.
name: Yamada, K.
name: Tranquada, J. M.
name: Frost, C. D.
name: Birgeneau, R. J.
name: Zhang, H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Magnetic excitations in the energy range up to 100 meV are studied for over-doped La$_{2-x}$Sr$_{x}$CuO$_{4}$ with $x=0.25$ and 0.30, using time-of-flight neutron spectroscopy. Comparison of spectra integrated over the width of an antiferromagnetic Brillouin zone demonstrates that the magnetic scattering at intermediate energies, $20 \lesssim ω\lesssim 100$ meV, progressively decreases with over-doping. This strongly suggests that the magnetism is not related to Fermi surface nesting, but rather is associated with a decreasing volume fraction of (probably fluctuating) antiferromagnetic bubbles.
description: 4 pages, 3 figures
Supplementary Tables and Figures to “Why Does Library Holding Format Really Matter for Book Impact Assessment?”
Creators: name: Maleki, Ashraf
Publisher: name: figshare
Year: 2021
Subjects: subject: Library and Information Studies
subject: FOS: Media and communications

description: This file is the online appendix to: “Why Does Library Holding Format Really Matter for Book Impact Assessment? Modelling the Relationship between Citations and Altmetrics with Print and Electronic Holdings”
see also:https://doi.org/10.6084/m9.figshare.16531155
“OCLC Library Holdings: Assessing Availability of Academic Books in Libraries in Print and Electronic Compared to Citations and Altmetrics”and
Mass generation and gravity
Creators: name: Novello, Mario
name: Antunes, Vicente
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Despite the success of the Higgs mechanism to account for the generation of the masses of Standard Model (SM) elementary particles, the ultimate nature and origin of "mass" remain open questions in contemporary physics. From a foundational perspective, mass should be fundamentally related to the gravitational interaction and, according to Mach, to the structure of the Universe. In the present letter, a fully dynamical mass generation mechanism induced by higher-order corrections in the GR Lagrangian is discussed. Notably, the vacuum energy plays a key role in this process, which applies to both vector bosons and fermions. We show that, at the classical level, the Higgs mechanism can be thought of as a particular case of the present mechanism.
Replication: Anti hero priming increases sensation seeking
Creators: name: Theil, Anna
name: Sagioglou, Christina
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Social and Behavioral Sciences

description: This is a replicational study of the so-called breaking bad effect (Ulqinaku et al. 2021), according to which priming participants with an anti-hero (vs. hero) increased sensation seeking and a temporal focus on the present.
First direct identification of the barlens vertical structure in galaxy models
Creators: name: Tikhonenko, Iliya S.
name: Smirnov, Anton A.
name: Sotnikova, Natalia Ya.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Applying spectral dynamics methods to one typical $N$-body model with a barlens, we dissect the modelled bar into separate components supported by completely different types of orbits. We identify at least four components: a narrow elongated bar, a boxy bar, and two components contributing to the barlens. We analyse the vertical structure of all components that make up the thick part of the bar, which has a boxy/peanut shape (B/P bulge). We show that the `peanut' shape is mainly due to the orbits that assemble the boxy part of the face-on bar. We associate the X-shape with the narrow and elongated bar. The wider part of the barlens with square-like isophotes contributes to the boxy shape of the B/P bulge when we observe the galaxy edge-on. However, the part of the barlens with rounded isophotes in the face-on view is a rather flat structure in the vertical direction without any significant off-centre protrusions. Thus, for the first time, we demonstrate that the rounded face-on barlens cannot be entirely associated with the B/P bulge.
description: 5 pages, 5 figures, accepted to Astronomy and Astrophysics on March 26, 2021
A demand assigned multiple access strategy for land mobile satellite voice services
Creators: name: Powell, Chris J.
Publisher: name: University of British Columbia
Year: 2008

description: Development of land mobile satellite systems is progressing rapidly, and implementation of new voice and data services for North America is scheduled for early 1994. In order to make the best use of the bandwidth allocated for these services, efficient demand assigned multiple access (DAMA) protocols must be employed. Efficiency achieved in terms of higher channel utilization and availability translates into more revenue for network management and better service for network subscribers. In particular, mobile voice services are examined, and a new blocked-calls-queued discipline, which processes calls in batches, designed specifically for dispatch radio via satellite is analyzed. Computer simulation is used to examine several batch service disciplines, and it is thereby shown that the new system meets the objectives of efficiency in providing a high level of performance by exploiting traffic characteristics unique to dispatch radio rather than adapting conventional techniques used in telephony. In addition, a technique for integrating mobile radio service and mobile telephone service in a dynamic resource sharing strategy using a common DAMA channel pool is introduced. The new strategy attempts to reserve a small margin of free channels for blocked-calls-dropped telephone traffic, while permitting the remaining channels to be shared between radio and telephone on a first come first served basis. It is shown that, without degrading the performance of either traffic source, the proposed integrated system achieves higher throughput than any other system of traffic integration found in the literature which is applicable to these services.
K-corrections and spectral templates of Type Ia supernovae
Creators: name: Hsiao, E. Y.
name: Conley, A.
name: Howell, D. A.
name: Sullivan, M.
name: Pritchet, C. J.
name: Carlberg, R. G.
name: Nugent, P. E.
name: Phillips, M. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: With the advent of large dedicated Type Ia supernova (SN Ia) surveys, K-corrections of SNe Ia and their uncertainties have become especially important in the determination of cosmological parameters. While K-corrections are largely driven by SN Ia broad-band colors, it is shown here that the diversity in spectral features of SNe Ia can also be important. For an individual observation, the statistical errors from the inhomogeneity in spectral features range from 0.01 (where the observed and rest-frame filters are aligned) to 0.04 (where the observed and rest-frame filters are misaligned). To minimize the systematic errors caused by an assumed SN Ia spectral energy distribution (SED), we outline a prescription for deriving a mean spectral template time series which incorporates a large and heterogeneous sample of observed spectra. We then remove the effects of broad-band colors and measure the remaining uncertainties in the K-corrections associated with the diversity in spectral features. Finally, we present a template spectroscopic sequence near maximum light for further improvement on the K-correction estimate. A library of ~600 observed spectra of ~100 SNe Ia from heterogeneous sources is used for the analysis.
description: 40 pages, 14 figures, accepted for publication in ApJ
Extended Supply-Use Tables
Creators: name: Dutta, Sourish
Publisher: name: Zenodo
Year: 2021
Subjects: Global Value Chains
Global Production Network
International Trade
Supply-Use Tables
Input-Output Tables

description: The statistical challenges of globalization are profound. We cannot rely solely on national statistics to understand how economies work and how to create industrial policies focusing on competitiveness. It is necessary to see the whole. National statistics build pictures based on relationships between producers and consumers and the rest of the world. But these relationships, especially those with the rest of the world, have become increasingly more complex. There is an increasing need to consider global production within a global accounting framework. This implies a departure from the traditional role of international organizations as compilers of internationally comparable national statistics to bring together the national tables to create a global table.
description: {"references": ["UN Handbook on Accounting for Global Value Chains"]}
Public Transport Planning: When Transit Network Connectivity Meets Commuting Demand
Creators: name: Wang, Sheng
name: Sun, Yuan
name: Musco, Christopher
name: Bao, Zhifeng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: In this paper, we make a first attempt to incorporate both commuting demand and transit network connectivity in bus route planning (CT-Bus), and formulate it as a constrained optimization problem: planning a new bus route with k edges over an existing transit network without building new bus stops to maximize a linear aggregation of commuting demand and connectivity of the transit network. We prove the NP-hardness of CT-Bus and propose an expansion-based greedy algorithm that iteratively scans potential candidate paths in the network. To boost the efficiency of computing the connectivity of new networks with candidate paths, we convert it to a matrix trace estimation problem and employ a Lanczos method to estimate the natural connectivity of the transit network with a guaranteed error bound. Furthermore, we derive upper bounds on the objective values and use them to greedily select candidates for expansion. Our experiments conducted on real-world transit networks in New York City and Chicago verify the efficiency, effectiveness, and scalability of our algorithms.
description: SIGMOD 2021, 14 pages
Noncommutative Geometry and Geometric Phases
Creators: name: Basu, B.
name: Ghosh, Subir
name: Dhar, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We have studied particle motion in generalized forms of noncommutative phase space, that simulate monopole and other forms of Berry curvature, that can be identified as effective internal magnetic fields, in coordinate and momentum space. The Ahranov-Bohm effect has been considered in this form of phase space, with operatorial structures of noncommutativity. Physical significance of our results are also discussed.
description: Revised version, Reference added, to appear in Euro.Phys.Lett
High Resolution Measurement of Near-Field Radiative Heat Transfer enabled by Nanomechanical Resonators
Creators: name: Giroux, Mathieu
name: Zhang, Chang
name: Snell, Nikaya
name: Mu, Gengyang
name: Stephan, Michel
name: St-Gelais, Raphael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Near-field radiative heat transfer (NFHT) research currently suffers from an imbalance between numerous theoretical studies, as opposed to experimental reports that remain, in proportion, relatively scarce. Existing experimental platforms all rely on unique custom-built devices on which it is difficult to integrate new materials and structures for studying the breadth of theoretically proposed phenomena. Here we show high-resolution NFHT measurements using, as our sensing element, silicon nitride (SiN) freestanding nanomembranes$-$a widely available platform routinely used in materials and cavity optomechanics research. We measure NFHT by tracking the high mechanical quality (Q) factor ($>2\times10^6$) resonance of a membrane placed in the near-field of a hemispherical hot object. We find that high Q-factor enables a temperature resolution ($1.2\times10^{-6} \ \mathrm{K}$) that is unparalleled in previous NFHT experiments. Results are in good agreement with a custom-built model combining heat transport in nanomembranes and the effect of non-uniform stress/temperature on the resonator eigenmodes.
description: 12 pages, 6 figures
When communities face malnutrition: how context shapes the factors predicting relevant health advice in Nepal
Creators: name: Roch, Karine Le
name: Caillaud, Sabine
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: No tag

description: This study aimed at highlighting which factors best explain relevant health advice from community members and Female Community Health Volunteers regarding social representations of severe malnutrition among children in Saptari and Nuwakot districts of Nepal.
Alexis G.C. Savvides – Benjamin Hendrickx (Hrsgg.), Encyclopaedic Prosopographical Lexicon of Byzantine History and Civilization (EPLBHC). Volume 1 Aaron-Azarethes
Creators: name: Schneider, Horst
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Alexis G.C. Savvides – Benjamin Hendrickx (Hrsgg.), Encyclopaedic Prosopographical Lexicon of Byzantine History and Civilization (EPLBHC). Volume 1 Aaron-Azarethes, assistant editors: A. J. Simpson, Th. Sansaridou-Hendrickx. Turnhout: Brepols 2007, XXXII + 476 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 10 (2007): Göttinger Forum für Altertumswissenschaft
Franziska Küenzlen, Verwandlungen eines Esels: Apuleius’ Metamorphosen im frühen 16. Jahrhundert. – Der Kommentar Filippo Beroaldos d. Ä. – Die Übersetzungen von Johann Sieder, Guillaume Michel, Diego López de Cortegana und Agnolo Firenzuola – Der Schelmenroman 'Lazarillo de Tormes'
Creators: name: Müller-Reineke, Hendrik
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Franziska Küenzlen, Verwandlungen eines Esels: Apuleius’ Metamorphosen im frühen 16. Jahrhundert. – Der Kommentar Filippo Beroaldos d. Ä. – Die Übersetzungen von Johann Sieder, Guillaume Michel, Diego López de Cortegana und Agnolo Firenzuola – Der Schelmenroman 'Lazarillo de Tormes'. Beihefte zur Germanisch-Romanischen Monatsschrift 25. Heidelberg: Universitätsverlag Winter 2005, 435 S., 12 s/w-Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 10 (2007): Göttinger Forum für Altertumswissenschaft
Measuring size distributions of atmospheric aerosols using natural air ions
Creators: name: Li, Yiran
name: Chen, Xiaotong
name: Jiang, Jingkun
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Astronomical and Space Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Electrical mobility size spectrometers are widely used to measure ambient aerosol number size distributions. A key component of these mobility systems is the charge conditioner, or neutralizer, which is used to place a stationary charge distribution on the aerosols prior to mobility analysis. Yet, there are natural air ions in the atmosphere which are constantly conditioning the charge state of atmospheric aerosols. In this study, we demonstrate that this natural charging process can be utilized by these spectrometers to measure size distributions of atmospheric aerosols without using a conventional neutralizer. This is achieved by measuring charged particles of both polarities, in contrast to only one polarity as conventionally done. The bipolar data is used to retrieve air ion properties from which the aerosol charge fractions are calculated. We deployed this new method in urban Beijing to measure atmospheric aerosols over a period of two years and verified that size distributions can be effectively measured using natural air ions. There is good agreement in aerosol size distributions when comparing this new method to a conventional spectrometer, and good agreement in total particle number concentrations measured by a condensation particle counter. Additionally, measuring charged particles of both polarities makes the uncertainties due to aerosol charging now traceable. We show that during two years of measurement in urban Beijing, the properties of ions produced by conventional neutralizers drifted due to the aging of ion sources, while the properties of natural atmospheric ions remained stable over time, despite occasional short-period fluctuations. Copyright © 2022 American Association for Aerosol Research
Broad-velocity-width Molecular Features in the Galactic Plane
Creators: name: Yokozuka, Hiroki
name: Oka, Tomoharu
name: Takekawa, Shunya
name: Iwata, Yuhei
name: Tsujimoto, Shiho
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We performed a systematic search for broad-velocity-width molecular features (BVFs) in the disk part of our Galaxy by using the CO J = 1-0 survey data obtained with the Nobeyama Radio Observatory 45 m telescope. From this search, 58 BVFs were identified. In comparisons with the infrared and radio continuum images, 36 BVFs appeared to have both infrared and radio continuum counterparts, and 15 of them are described as molecular outflows from young stellar objects in the literature. In addition, 21 BVFs have infrared counterparts only, and eight of them are described as molecular outflows in the literature. One BVF (CO 16.134-0.553) does not have any luminous counterpart in the other wavelengths, which suggests that it may be an analog of high-velocity compact clouds in the Galactic center.
description: 18 pages, 10 figures, 2 tables, accepted for publication on the Astrophysical Journal
Landschaftsverband Rheinland / Rheinisches Landesmuseum Bonn (Hrsg.), Krieg und Frieden. Kelten – Römer – Germanen. Austellungskatalog
Creators: name: Müller, Holger
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Landschaftsverband Rheinland / Rheinisches Landesmuseum Bonn (Hrsg.), Krieg und Frieden. Kelten – Römer – Germanen. Austellungskatalog. Darmstadt: Primus Verlag 2007, 384 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 10 (2007): Göttinger Forum für Altertumswissenschaft
Mirko Vonderstein, Der Zeuskult bei den Westgriechen
Creators: name: Kreutz, Natascha
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Mirko Vonderstein, Der Zeuskult bei den Westgriechen. Palilia 17. Wiesbaden: Dr. Ludwig Reichert Verlag 2006, 253 S., 54 s/w-Abb., 11 Strichabb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 10 (2007): Göttinger Forum für Altertumswissenschaft
A Dynamical approach to Quasi-Analytic type Problems
Creators: name: Taghavi, Ali
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: In this paper we give an alternative proof for a vanishing result about flat functions proved in G.Stoica, "When must a flat function be identically zero", The American Mathematical Monthly 125(7)648-649,2018. With a dynamical approach we give a generalization of this result to multidimensional variables.
Kai Brodersen (herausgegeben, eingeleitet und übersetzt), Apollodoros: Götter und Helden der Griechen. Griechisch und deutsch
Creators: name: Nesselrath, Heinz-Günther
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Kai Brodersen (herausgegeben, eingeleitet und übersetzt), Apollodoros: Götter und Helden der Griechen. Griechisch und deutsch. Darmstadt: Wissenschaftliche Buchgesellschaft 2004, XII + 327 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 10 (2007): Göttinger Forum für Altertumswissenschaft
Hermann Menge, Lateinische Synonymik
Creators: name: Lindermann, Jens-Olaf
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Hermann Menge, Lateinische Synonymik. Bearbeitet von Otto Schönberger; 8. unveränderte Auflage von Otto Schönberger, Heidelberg: Universitätsverlag Winter 2007. VI, 236 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 10 (2007): Göttinger Forum für Altertumswissenschaft
Non-thermal electron energization during the impulsive phase of an X9.3 flare revealed by Insight-HXMT
Creators: name: Zhang, P.
name: Wang, W.
name: Su, Y.
name: Song, L. M.
name: Li, C. K.
name: Zhou, D. K.
name: Zhang, S. N.
name: Tian, H.
name: Liu, S. M.
name: Zhao, H. S.
name: Zhang, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The X9.3 flare SOL20170906T11:55 was observed by the CsI detector aboard the first Chinese X-ray observatory Hard X-ray Modulation telescope (Insight-HXMT). By using wavelets method, we report about 22 s quasiperiodic pulsations(QPPs) during the impulsive phase. And the spectra from 100 keV to 800 keV showed the evolution with the gamma-ray flux, of a power-law photon index from $\sim 1.8$ before the peak, $\sim 2.0$ around the flare peak, to $\sim 1.8$ again. The gyrosynchrotron microwave spectral analysis reveals a $36.6 \pm 0.6 \arcsec$ radius gyrosynchrotron source with mean transverse magnetic field around 608.2 Gauss, and the penetrated $\ge$ 10 keV non-thermal electron density is about $10^{6.7} \mathrm{cm}^{-3}$ at peak time. The magnetic field strength followed the evolution of high-frequency radio flux. Further gyrosynchrotron source modeling analysis implies that there exists a quite steady gyrosynchrotron source, the non-thermal electron density and transverse magnetic field evolution are similar to higher-frequency light curves. The temporally spectral analysis reveals that those non-thermal electrons are accelerated by repeated magnetic reconnection, likely from a lower corona source.
description: 14 pages, 9 figures, accept for publication by ApJ
Andrea Debiasi, L’epica perduta. Eumelo, il Ciclo, l’occidente
Creators: name: Scafoglio, Giampiero
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Andrea Debiasi, L’epica perduta. Eumelo, il Ciclo, l’occidente. Hesperìa 20. Roma: L’Erma di Bretschneider 2004, Pp. 311.
description: Göttinger Forum für Altertumswissenschaft, Bd. 10 (2007): Göttinger Forum für Altertumswissenschaft
Quiescent luminosities of accreting neutron stars with different equation of states
Creators: name: Liu, Helei
name: Dohi, Akira
name: Hashimoto, Masa-aki
name: Matsuo, Yasuhide
name: Lü, Guo-Liang
name: Noda, Tsuneo
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We model the quiescent luminosity of accreting neutron stars with several equation of states (EOSs), including the effect of pion condensation and superfluidity. As a consequence of comparison with the observations, we show that the results with Togashi EoS (the strong direct Urca process is forbidden) and TM1e EoS (mass at direct Urca process is $2.06 M_\odot$) can explain the observations well by considering pion condensation and the effect of superfluidity, while LS220 EoS and TM1 EoS can explain the observations well by considering the baryon direct Urca process and the effect of superfluidity. Besides, we compare the results with the observations of a neutron star RX J0812.4-3114 which has the low average mass accretion rate ($\langle\dot{M}\rangle\sim(4-15)\times 10^{-12}~M_\odot ~\rm yr^{-1}$) but high thermal luminosity ($L_q^\infty\sim(0.6-3)\times10^{33}~\rm erg ~ s^{-1}$), and we suggest that a low-mass neutron star ($<1M_\odot$) with minimum cooling can explain the lower limit of the observation of thermal luminosity of RX J0812.4-3114, which is qualitatively consistent with the previous work~\cite{Zhao2019}. However, to explain its upper limit, some other heating mechanisms besides standard deep crustal heating may be needed.
description: 12 pages, 8 figures, accepted by Phys. Rev. D
Irad Malkin (ed.), Mediterranean Paradigms and Classical Antiquity
Creators: name: Walter, Uwe
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Irad Malkin (ed.), Mediterranean Paradigms and Classical Antiquity. London/New York: Routledge 2005. VI + 149 S., Abb., Karten.
description: Göttinger Forum für Altertumswissenschaft, Bd. 10 (2007): Göttinger Forum für Altertumswissenschaft
Karin Metzler, Eustathios von Thessalonike und das Mönchtum. Untersuchungen und Kommentar zur Schrift „De emendanda vita monachica“
Creators: name: Schneider, Horst
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Karin Metzler, Eustathios von Thessalonike und das Mönchtum. Untersuchungen und Kommentar zur Schrift „De emendanda vita monachica“. Supplementa Byzantina, Texte und Untersuchungen, Band 9, herausgegeben von H.-G. Beck (†) – A. Kambylis – R. Keydell (†), Berlin/New York: De Gruyter 2006, XIII + 624 S., und dieselbe, Eustathii Thessalonicensis De emendanda vita monachica, recensuit germanice vertit indicibusque instruxit, Corpus Fontium Historiae Byzantinae, Volumen XLV, series Berolinensis, ediderunt H.-G. Beck (†) – A. Kambylis – R. Keydell (†), Berlin/New York: De Gruyter 2006, VIII + 56* + 270 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 10 (2007): Göttinger Forum für Altertumswissenschaft
Methods for Partitioning Data to Improve Parallel Execution Time for Sorting on Heterogeneous Clusters
Creators: name: Cérin, Christophe
name: Dubacq, Jean-Christophe
name: Roch, Jean-Louis
name: Collaboration, the SafeScale
Publisher: name: arXiv
Year: 2006
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences
subject: F.2.2

description: The aim of the paper is to introduce general techniques in order to optimize the parallel execution time of sorting on a distributed architectures with processors of various speeds. Such an application requires a partitioning step. For uniformly related processors (processors speeds are related by a constant factor), we develop a constant time technique for mastering processor load and execution time in an heterogeneous environment and also a technique to deal with unknown cost functions. For non uniformly related processors, we use a technique based on dynamic programming. Most of the time, the solutions are in O(p) (p is the number of processors), independent of the problem size n. Consequently, there is a small overhead regarding the problem we deal with but it is inherently limited by the knowing of time complexity of the portion of code following the partitioning.
Positivity of Lyapunov exponents for a continuous matrix-valued Anderson model
Creators: name: Boumaza, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study a continuous matrix-valued Anderson-type model. Both leading Lyapunov exponents of this model are proved to be positive and distinct for all ernergies in $(2,+\infty)$ except those in a discrete set, which leads to absence of absolutely continuous spectrum in $(2,+\infty)$. This result is an improvement of a previous result with Stolz. The methods, based upon a result by Breuillard and Gelander on dense subgroups in semisimple Lie groups, and a criterion by Goldsheid and Margulis, allow for singular Bernoulli distributions.
Patrick Schollmeyer, Römische Plastik. Eine Einführung
Creators: name: Piekarski, Dirk
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Patrick Schollmeyer, Römische Plastik. Eine Einführung. Darmstadt: Wissenschaftliche Buchgesellschaft 2005, 160 S., 60 s/w-Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 10 (2007): Göttinger Forum für Altertumswissenschaft
Defect generation in a spin-1/2 transverse XY chain under repeated quenching of the transverse field
Creators: name: Mukherjee, Victor
name: Dutta, Amit
name: Sen, Diptiman
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the quenching dynamics of a one-dimensional spin-1/2 $XY$ model in a transverse field when the transverse field $h(=t/τ)$ is quenched repeatedly between $-\infty$ and $+\infty$. A single passage from $h \to - \infty$ to $h \to +\infty$ or the other way around is referred to as a half-period of quenching. For an even number of half-periods, the transverse field is brought back to the initial value of $-\infty$; in the case of an odd number of half-periods, the dynamics is stopped at $h \to +\infty$. The density of defects produced due to the non-adiabatic transitions is calculated by mapping the many-particle system to an equivalent Landau-Zener problem and is generally found to vary as $1/\sqrtτ$ for large $τ$; however, the magnitude is found to depend on the number of half-periods of quenching. For two successive half-periods, the defect density is found to decrease in comparison to a single half-period, suggesting the existence of a corrective mechanism in the reverse path. A similar behavior of the density of defects and the local entropy is observed for repeated quenching. The defect density decays as $1/{\sqrtτ}$ for large $τ$ for any number of half-periods, and shows a increase in kink density for small $τ$ for an even number; the entropy shows qualitatively the same behavior for any number of half-periods. The probability of non-adiabatic transitions and the local entropy saturate to 1/2 and $\ln 2$, respectively, for a large number of repeated quenching.
description: 5 pages, 3 figures
Social Institutions and Human Development
Creators: name: Foa, Roberto Stefan
Publisher: name: World Bank Group
Year: 2008
Subjects: Social Development
Human Development
Social Institutions
World Bank
Social Indicators

description: For almost two decades, development theorists and practitioners have drawn attention to the importance of social institutions or ‘social capital’ as a means of enhancing human capabilities and freedoms. However, empirical testing has been inhibited by the absence of cross-country measures. Drawing on a set of 25 data sources, this paper attempts to provide the first worldwide indices of social institutions, understood as the informal norms that pattern human interaction.Six indices are presented corresponding to the following dimensions: (1) inclusion of minorities,(2) gender equity, (3) inter-group cohesion, (4) clubs and associations, (5) interpersonal safety and trust and (6) civic activism. In accordance with a growing literature on the links from institutions to development outcomes, this article provides empirical evidence of the relationship between social institutions, such as social inclusion and norms of non-discrimination, and human development outcomes such as equal access to health, fair government, and a better income.
Open String Amplitudes in Various Gauges
Creators: name: Fuji, Hiroyuki
name: Nakayama, Shinsaku
name: Suzuki, Hisao
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, Schnabl constructed the analytic solution of the open string tachyon. Subsequently, the absence of the physical states at the vacuum was proved. The development relies heavily on the use of the gauge condition different from the ordinary one. It was shown that the choice of gauge simplifies the analysis drastically. When we perform the calculation of the amplitudes in Schnabl gauge, we find that the off-shell amplitudes of the Schnabl gauge is still very complicated. In this paper, we propose the use of the propagator in the modified Schnabl gauge and show that this modified use of the Schnabl gauge simplifies the computation of the off-shell amplitudes drastically. We also compute the amplitudes of open superstring in this gauge.
description: 23 pages, minor corrections
Florian Kragl, Die Weisheit des Fremden. Studien zur mittelalterlichen Alexandertradition
Creators: name: Steinmann, Marc
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Florian Kragl, Die Weisheit des Fremden. Studien zur mittelalterlichen Alexandertradition. Mit einem allgemeinen Teil zur Fremdheitswahrnehmung. Wiener Arbeiten zur germanischen Altertumskunde und Philologie 39. Bern [u. a.]: Lang 2005, 500 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 10 (2007): Göttinger Forum für Altertumswissenschaft
Synchronized Independent Narrow-band Single Photons and Efficient Generation of Photonic Entanglement
Creators: name: Yuan, Zhen-Sheng
name: Chen, Yu-Ao
name: Chen, Shuai
name: Zhao, Bo
name: Koch, Markus
name: Strassel, Thorsten
name: Zhao, Yong
name: Zhu, Gan-Jun
name: Schmiedmayer, Jörg
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We create independent, synchronized single-photon sources with built-in quantum memory based on two remote cold atomic ensembles. The synchronized single photons are used to demonstrate efficient generation of entanglement. The resulting entangled photon pairs violate a Bell's Inequality by 5 standard deviations. Our synchronized single photons with their long coherence time of 25 ns and the efficient creation of entanglement serve as an ideal building block for scalable linear optical quantum information processing.
Hans-Werner Goetz – Steffen Patzold – Karl-Wilhelm Welwei (Hrsg.), Die Germanen in der Völkerwanderung. Auszüge aus den antiken Quellen über die Germanen von der Mitte des 3. Jahrhunderts bis zum Jahre 453 n. Chr.
Creators: name: Berndt, Guido M.
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Hans-Werner Goetz – Steffen Patzold – Karl-Wilhelm Welwei (Hrsg.), Die Germanen in der Völkerwanderung. Auszüge aus den antiken Quellen über die Germanen von der Mitte des 3. Jahrhunderts bis zum Jahre 453 n. Chr. (Freiherr-vom-Stein-Gedächtnisausgabe, A 1b, 2 Teilbände), Darmstadt: Wissenschaftliche Buchgesellschaft 2006/7, zusammen LIX + 901 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 10 (2007): Göttinger Forum für Altertumswissenschaft
Brownian Motion in Planetary Migration
Creators: name: Murray-Clay, Ruth A.
name: Chiang, Eugene I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A residual planetesimal disk of mass 10-100 Earth masses remained in the outer solar system following the birth of the giant planets, as implied by the existence of the Oort cloud, coagulation requirements for Pluto, and inefficiencies in planet formation. Upon gravitationally scattering planetesimal debris, planets migrate. Orbital migration can lead to resonance capture, as evidenced here in the Kuiper and asteroid belts, and abroad in extra-solar systems. Finite sizes of planetesimals render migration stochastic ("noisy"). At fixed disk mass, larger (fewer) planetesimals generate more noise. Extreme noise defeats resonance capture. We employ order-of-magnitude physics to construct an analytic theory for how a planet's orbital semi-major axis fluctuates in response to random planetesimal scatterings. To retain a body in resonance, the planet's semi-major axis must not random walk a distance greater than the resonant libration width. We translate this criterion into an analytic formula for the retention efficiency of the resonance as a function of system parameters, including planetesimal size. We verify our results with tailored numerical simulations. Application of our theory reveals that capture of Resonant Kuiper belt objects by a migrating Neptune remains effective if the bulk of the primordial disk was locked in bodies having sizes < O(100) km and if the fraction of disk mass in objects with sizes > 1000 km was less than a few percent. Coagulation simulations produce a size distribution of primordial planetesimals that easily satisfies these constraints. We conclude that stochasticity did not interfere with, nor modify in any substantive way, Neptune's ability to capture and retain Resonant Kuiper belt objects during its migration.
description: Accepted to ApJ
Room-temperature Mechanical Resonator with a Single Added or Subtracted Phonon
Creators: name: Patel, Rishi N.
name: McKenna, Timothy P.
name: Wang, Zhaoyou
name: Witmer, Jeremy D.
name: Jiang, Wentao
name: Van Laer, Raphaël
name: Sarabalis, Christopher J.
name: Safavi-Naeini, Amir H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A room-temperature mechanical oscillator undergoes thermal Brownian motion with an amplitude much larger than the amplitude associated with a single phonon of excitation. This motion can be read out and manipulated using laser light using a cavity-optomechanical approach. By performing a strong quantum measurement, i.e., counting single photons in the sidebands imparted on a laser, we herald the addition and subtraction of single phonons on the 300K thermal motional state of a 4GHz mechanical oscillator. To understand the resulting mechanical state, we implement a tomography scheme and observe highly non-Gaussian phase-space distributions. Using a maximum likelihood method, we infer the density matrix of the oscillator and confirm the counter-intuitive doubling of the mean phonon number resulting from phonon addition and subtraction.
description: 13 pages, 9 figures
Andreas Luther – Mischa Meier – Lukas Thommen (Hrsg.), Das frühe Sparta
Creators: name: Bearzot, Cinzia
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Andreas Luther – Mischa Meier – Lukas Thommen (Hrsg.), Das frühe Sparta. München: Franz Steiner Verlag 2006, 224 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 10 (2007): Göttinger Forum für Altertumswissenschaft
Transfer-matrix approach to the problem of electrical conduction through a series of absorbers
Creators: name: Walczak, Kamil
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Here we study incoherent transport through molecular wire treated as a linear chain of absorbers, where the phase-breaking processes are modeled by the use of imaginary point-like potentials. The calculations are performed within a transfer-matrix method of the scattering theory. An analytic expression for the transmission of a finite chain in obtained, while the electrical current is then computed with the help of the Tsu-Esaki formula. In particular, it is shown that the maximal current dependence on the wire length is exponential.
description: 7 pages, 5 figures
The promise of energy-efficient battery-powered urban aircraft
Creators: name: Sripad, Shashank
name: Viswanathan, Venkatasubramanian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Improvements in rechargeable batteries are enabling several electric urban air mobility (UAM) aircraft designs with up to 300 miles of range with payload equivalents of up to 7 passengers. We find that novel UAM aircraft consume between 130 Wh/passenger-mile up to ~1,200 Wh/passenger-mile depending on the design and utilization, relative to an expected consumption of over 220 Wh/passenger-mi for terrestrial electric vehicles and 1,000 Wh/passenger-mile for combustion engine vehicles. We also find that several UAM aircraft designs are approaching technological viability with current Li-ion batteries, based on the specific power-and-energy while rechargeability and lifetime performance remain uncertain. These aspects highlight the technological readiness of a new segment of transportation.
description: 3 pages, 2 figures, 1 supplementary information file
Generalized hypergeometric Bernoulli numbers
Creators: name: Chakraborty, Kalyan
name: Komatsu, Takao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11B68, 11B37, 33C15

description: We introduce generalized hypergeometric Bernoulli numbers for Dirichlet characters. We study their properties, including relations, expressions and determinants. At the end in Appendix we derive first few expressions of these numbers.
description: Revista de la Real Academia de Ciencias Exactas, Fisicas y Naturales. Serie A. Matematicas