cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Resource Wealth and Entrepreneurship: A Blessing or a Curse?
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Farzanegan, Mohammad Reza
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: panel data
resource curse
Economics
Wirtschaft
entrepreneurship

description: Resource-rich countries of the Middle East and North Africa (MENA) have the highest youth unemployment rate in the world. While other parts of the world are experiencing an increasing trend in new firms’ formation as a potential solution for their unemployment problem, the MENA region has the lowest records in new business establishments. In this study, we investigate the reasons behind such a significant lag of the resource-rich countries in entrepreneurship. Panel data for more than 80 countries from 2004-2009 shows that higher dependence on resource rents reduces entrepreneurship activities. The decline is more significant in countries with higher levels of point resources such as oil and coal.
Fast Photon Detection for Particle Identification with COMPASS RICH-1
Creators: name: Nerling, F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Particle identification at high rates is an important challenge for many current and future high-energy physics experiments. The upgrade of the COMPASS RICH-1 detector requires a new technique for Cherenkov photon detection at count rates of several $10^6$ per channel in the central detector region, and a read-out system allowing for trigger rates of up to 100 kHz. To cope with these requirements, the photon detectors in the central region have been replaced with the detection system described in this paper. In the peripheral regions, the existing multi-wire proportional chambers with CsI photocathode are now read out via a new system employing APV pre-amplifiers and flash ADC chips. The new detection system consists of multi-anode photomultiplier tubes (MAPMT) and fast read-out electronics based on the MAD4 discriminator and the F1-TDC chip. The RICH-1 is in operation in its upgraded version for the 2006 CERN SPS run. We present the photon detection design, constructive aspects and the first Cherenkov light in the detector.
description: Proceedings of the Imaging 2006 conference, Stockholm, Sweden, 27-30 June 2006, 5 pages, 6 figures, to appear in NIM A; corrected typo in caption of Fig.6
Spectral POD analysis of the turbulent wake of a disk at Re = 50, 000
Creators: name: Nidhan, Sheel
name: Chongsiripinyo, Karu
name: Schmidt, Oliver T.
name: Sarkar, Sutanu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The coherent structures in the turbulent wake of a disk at a moderately high Reynolds number ($\Rey$) of $50,000$ are examined using spectral proper orthogonal decomposition (SPOD) which considers all three velocity components in a numerical database. The SPOD eigenvalues at a given streamwise ($x$) location are functions of azimuthal wavenumber ($m$), frequency ($\Str$), and SPOD index ($n$). By $x/D =10$, two specific modes dominate the fluctuation energy: (i) the vortex shedding (VS) mode with $m=1, \Str =0.135, n=1$, and (ii) the double helix (DH) mode with $m=2, \Str \rightarrow 0, n=1$. The VS mode is more energetic than the DH mode in the near wake but, in the far wake, it is the DH mode which is dominant. The DH mode, when scaled with local turbulent velocity and length scales, shows self-similarity in eigenvalues and eigenmodes while the VS mode, which is a global mode, does not exhibit strict self-similarity. Modes $m = 0$, 3 and 4, although subdominant, also make a significant net contribution to the fluctuation energy, and their eigenspectra are evaluated. The reconstruction of TKE and Reynolds shear stress, $\langle u'_{x} u'_{r} \rangle$, is evaluated by varying $(m,\Str,n)$ combinations. Higher SPOD modes contribute significantly to the TKE, especially near the centerline. In contrast, reconstruction of $\langle u'_{x}u'_{r}\rangle $ requires far fewer modes: $|m| \leq 4 $, $|\Str| \leq 1$ and $n \leq 3$. Among azimuthal modes, $m=1$ and $2$ are the leading contributors to both TKE and $\langle u'_{x}u'_{r} \rangle $. While $m=1$ captures the slope of the shear-stress profile near the centerline, $m=2$ is important to capture $\langle u'_{x}u'_{r} \rangle $ at and near its peak. SPOD is also performed in the vicinity of the disk to describe the modal transition to the principal contributors in the wake.
description: 46 pages, 22 figures
title: Tokyo’s Greenhouse Gas Emissions Trading Scheme: A Model for Sustainable Megacity Carbon Markets?
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Rudolph, Sven
name: Kawakatsu, Takeshi
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: Tokyo
climate policy
Economics
Wirtschaft
ETS
local
city

description: Megacities already account for a major part of global energy-related CO2 emissions with a strong tendency to increase; hence, future climate policy has to put a special emphasis on reducing big cities’ energy consumption, especially in a world, where global climate negotiations are deadlocked. Tokyo, the world’s biggest metropolis and emitter of greenhouse gases roughly comparable to Scandinavian countries, started the world’s first megacity carbon market in 2010, the design of which is unique, due to its focus on end-energy use in buildings. While the program only started in 2010, the first results are now available. Hence, the paper answers the question to what extend Tokyo’s new carbon market can be considered a worthwhile model for other cities as well as an additional building-stone in a bottom-up global climate policy regime. By applying up-to-date sustainability economics reasoning, the paper evaluates the design and the recent results of Tokyo’s carbon market, showing that, while there is still room for improvements, Tokyo has the potential to be a world leader in sustainable local climate policy.
On matrix elements for the quantized cat map modulo prime powers
Creators: name: Kelmer, Dubi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Number Theory (math.NT)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 81Q50; 11L03

description: The quantum cat map is a model for a quantum system with underlying chaotic dynamics. In this paper we study the matrix elements of smooth observables in this model, when taking arithmetic symmetries into account. We give explicit formulas for the matrix elements as certain exponential sums. With these formulas we can show that there are sequences of eigenfunctions for which the matrix elements decay significantly slower then was previously conjectured. We also prove a limiting distribution for the fluctuation of the normalized matrix elements around their average.
description: 26 pages, final version, to appear in AHP
Measurements of the growth and saturation of electron Weibel instability in optical-field ionized plasmas
Creators: name: Zhang, Chaojie
name: Hua, Jianfei
name: Wu, Yipeng
name: Fang, Yu
name: Ma, Yue
name: Zhang, Tianliang
name: Liu, Shuang
name: Peng, Bo
name: He, Yunxiao
name: Huang, Chen-Kang
name: Marsh, Ken A.
name: Mori, Warren B.
name: Lu, Wei
name: Joshi, Chan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The temporal evolution of the magnetic field associated with electron thermal Weibel instability in optical-field ionized plasmas is measured using ultrashort (1.8 ps), relativistic (45 MeV) electron bunches from a linear accelerator. The self-generated magnetic fields are found to self-organize into a quasi-static structure consistent with a helicoid topology within a few ps and such a structure lasts for tens of ps in underdense plasmas. The measured growth rate agrees well with that predicted by the kinetic theory of plasmas taking into account collisions. Magnetic trapping is identified as the dominant saturation mechanism.
description: Accepted for publication in Physical Review Letters
Three-dimensional stability of magnetically confined mountains on accreting neutron stars
Creators: name: Vigelius, M.
name: Melatos, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We examine the hydromagnetic stability of magnetically confined mountains, which arise when material accumulates at the magnetic poles of an accreting neutron star. We extend a previous axisymmetric stability analysis by performing three-dimensional simulations using the ideal-magnetohydrodynamic (ideal-MHD) code \textsc{zeus-mp}, investigating the role played by boundary conditions, accreted mass, stellar curvature, and (briefly) toroidal magnetic field strength. We find that axisymmetric equilibria are susceptible to the undular sub-mode of the Parker instability but are not disrupted. The line-tying boundary condition at the stellar surface is crucial in stabilizing the mountain. The nonlinear three-dimensional saturation state of the instability is characterized by a small degree of nonaxisymmetry ($\la 0.1$ per cent) and a mass ellipticity of $ε\sim 10^{-5}$ for an accreted mass of $M_a = 10^{-5} M_\odot$. Hence there is a good prospect of detecting gravitational waves from accreting millisecond pulsars with long-baseline interferometers such as Advanced LIGO. We also investigate the ideal-MHD spectrum of the system, finding that long-wavelength poloidal modes are suppressed in favour of toroidal modes in the nonaxisymmetric saturation state.
description: accepted by MNRAS
First Detection of Cosmic Structure in the 21-cm Intensity Field
Creators: name: Pen, Ue-Li
name: Staveley-Smith, Lister
name: Peterson, Jeffrey
name: Chang, Tzu-Ching
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first statistically significant detection of cosmic structure using broadly distributed hydrogen radio emission. This is accomplished using a cross correlation with optical galaxies. Statistical noise levels of $20 μ$K are achieved, unprecedented in this frequency band. This lends support to the idea that large volumes of the universe can be rapidly mapped without the need to resolve individual faint galaxies, enabling precise constraints to dark energy models. We discuss strategies for improved intensity mapping.
description: 5 pages, 4 figures, submitted to MNRAS
Bell Inequalities Classifying Bi-separable Three-qubit States
Creators: name: Sun, Bao-Zhi
name: Fei, Shao-Ming
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a set of Bell inequalities that gives rise to a finer classification of the entanglement for tripartite systems. These inequalities distinguish three possible bi-separable entanglements for three-qubit states. The three Bell operators we employed constitute an external sphere of the separable cube.
description: 8 pages
NMR study on the local structure in La-based high-Tc cuprates
Creators: name: Goto, T.
name: Tonishi, J.
name: Suzuki, T.
name: Oosawa, A.
name: Fujita, M.
name: Yamada, K.
name: Adachi, T.
name: Koike, Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: To date, there has been no evidence for the macroscopic structural phase transition to the low temperature tetragonal structure (LTT) with a space group P42/ncm in high-TC cuprate of rare earth-free La2-xSrxCuO4 (LSCO). By investigating Cu-NMR on single crystals, we have found that spatially incoherent LTT structure emerges below 50 K in the sample with x=0.12. This incoherent structure is considered to play a key role for the slight depression of the superconductivity around x=1/8.
description: 7 pages, 6 figures, proceeding of LEHTSC2007, to appear in J. Phys.: Conf. Series
title: Hold Your Breath: A New Index of Air Quality
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Buehn, Andreas
name: Farzanegan, Mohammad Reza
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: Emissions
Economics
Wirtschaft
MIMIC model
Development
Air quality
EKC hypothesis

description: Environmental quality and climate change have long attracted attention in policy debates. Recently, air quality has emerged on the policy agenda. We calculate a new index of air quality using CO2 and SO2 emissions per capita as indicators and provide a ranking for 122 countries from 1985 to 2005. The empirical analysis supports the EKC hypothesis and shows a significant influence of determinants such as energy efficiency, industrial production, electricity produced from coal sources, and urbanization on air quality. According to our index, Luxemburg, Norway, Iceland, Switzerland, and Japan are among the top 5 countries in terms of air quality performance. The Democratic Republic of Congo, Eritrea, Ethiopia, Togo, and Nepal performed worst in 2005.
Tracking from Patterns: Learning Corresponding Patterns in Point Clouds for 3D Object Tracking
Creators: name: Shi, Jieqi
name: Li, Peiliang
name: Shen, Shaojie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: A robust 3D object tracker which continuously tracks surrounding objects and estimates their trajectories is key for self-driving vehicles. Most existing tracking methods employ a tracking-by-detection strategy, which usually requires complex pair-wise similarity computation and neglects the nature of continuous object motion. In this paper, we propose to directly learn 3D object correspondences from temporal point cloud data and infer the motion information from correspondence patterns. We modify the standard 3D object detector to process two lidar frames at the same time and predict bounding box pairs for the association and motion estimation tasks. We also equip our pipeline with a simple yet effective velocity smoothing module to estimate consistent object motion. Benifiting from the learned correspondences and motion refinement, our method exceeds the existing 3D tracking methods on both the KITTI and larger scale Nuscenes dataset.
description: 4 pages, ECCV2020 Workshop on Perception for Autonomous Driving(PAD2020)
title: Pollution, Economic Development and Democracy: Evidence from the MENA countries
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Farzanegan, Mohammad Reza
name: Markwardt, Gunther
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: political institutions, environmental quality
democratic development
Economics
Wirtschaft
MENA

description: The Middle East and North Africa (MENA) countries are among the world's top emitters of CO2 and SO2 in per capita terms. The objective of this paper is to analyze whether investing in the democratic development of these countries is an effective tool to make the economic growth in this region more environmentally compatible. Arguing on the basis of the Environmental Kuznets Curve hypothesis and using panel data on the income-emission- democracy nexus, we find evidence that improvements in the democratic development of the MENA countries help to mitigate environmental problems. Our results clearly show, that the quality of democratic institutions has a greater influence on local environmental problems than on global environmental issues in the MENA region.
Kepler Equation for the Compact Binaries under the Spin-spin Interaction
Creators: name: Keresztes, Zoltán
name: Mikóczi, Balázs
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this work we consider compact binaries on eccentric orbit under the spin-spin interaction. Using the post-Newtonian formalism, the binaries undergo a perturbed Keplerian motion. Here we investigate only the radial motion and derive the contribution of the second post-Newtonian order spin-spin effect to the solution.
description: 4 pages, $g_t$ from Kepler equation removed as compared to the published version, in Proceedings of the Astrophysics of Variable Stars
Lepton Flavor Violating Muon Decays in a Model of Electroweak-Scale Right-Handed Neutrinos
Creators: name: Bu, Jian-Ping
name: Liao, Yi
name: Liu, Ji-Yuan
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The small neutrino mass observed in neutrino oscillations is nicely explained by the seesaw mechanism. Rich phenomenology is generally expected if the heavy neutrinos are not much heavier than the electroweak scale. A model with this feature built in has been suggested recently by Hung. The model keeps the standard gauge group but introduces chirality-flipped partners for the fermions. In particular, a right-handed neutrino forms a weak doublet with a charged heavy lepton, and is thus active. We analyze the lepton flavor structure in gauge interactions. The mixing matrices in charged currents (CC) are generally non-unitary, and their deviation from unitarity induces flavor changing neutral currents (FCNC). We calculate the branching ratios for the rare decays μ\to eγand μ\to ee\bar e due to the gauge interactions. Although the former is generally smaller than the latter by three orders of magnitude, parameter regions exist in which μ\to eγis reachable in the next generation of experiments even if the current stringent bound on μ\to ee\bar e is taken into account. If light neutrinos dominate for μ\to eγ, the latter cannot set a meaningful bound on unitarity violation in the mixing matrix of light leptons due to significant cancelation between CC and FCNC contributions. Instead, the role is taken over by the decay μ\to ee\bar e.
description: 11 pages, 2 figures. v2: added 2 refs and improved a comment on previous work; no other changes. v3: proofread version for PLB; added a few clarifying sentences in paragraph before eq (17) plus minor editting changes
On the magnetic field evolution in shell-like supernova remnants
Creators: name: Vukotic, Branislav
name: Arbutina, Bojan
name: Urosevic, Dejan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we apply and discuss a method for the determination of the magnetic field ($H$) evolution in supernova remnants (SNRs) from radio luminosity at given frequency $ν$ to diameter ($L_\mathrmν-D$) correlation. We assumed that $H$ evolves as $H\propto D^{-δ}$, where $D$ is the diameter of the remnant. Value $δ\approx1.2$ is obtained under the equipartition assumption from the equations for revised equipartition calculation (REC) and by using the data sample from the nearby starburst galaxy M82. We try to investigate whether or not SNRs in M82 are in the equipartition state. This is done by comparison of our empirically obtained $δ$ with the theoretical value expected for the equipartition conditions. Inconsistence between the value obtained for equipartition conditions and adiabatic expansion $(δ=1.5)$ and the value empirically obtained herein, can be explained mainly by the influence of sensitivity selection effects which tend to flatten the slope of the $L_ν-D$ relations for extragalactic samples.
description: Accepted by RevMexAA to be published on April 2007. 11 pages, 1 figure
Black Hole Mergers from Hierarchical Triples in Dense Star Clusters
Creators: name: Martinez, Miguel A. S.
name: Fragione, Giacomo
name: Kremer, Kyle
name: Chatterjee, Sourav
name: Rodriguez, Carl L.
name: Samsing, Johan
name: Ye, Claire S.
name: Weatherford, Newlin C.
name: Zevin, Michael
name: Naoz, Smadar
name: Rasio, Frederic A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Hierarchical triples are expected to be produced by the frequent binary-mediated interactions in the cores of globular clusters. In some of these triples, the tertiary companion can drive the inner binary to merger following large eccentricity oscillations, as a result of the eccentric Kozai-Lidov mechanism. In this paper, we study the dynamics and merger rates of black hole (BH) hierarchical triples, formed via binary--binary encounters in the CMC Cluster Catalog, a suite of cluster simulations with present-day properties representative of the Milky Way's globular clusters. We compare the properties of the mergers from triples to the other merger channels in dense star clusters, and show that triple systems do not produce significant differences in terms of mass and effective spin distribution. However, they represent an important pathway for forming eccentric mergers, which could be detected by LIGO--Virgo/KAGRA (LVK), and future missions such as LISA and DECIGO. We derive a conservative lower limit for the merger rate from this channel of $0.35$ Gpc$^{-3}$yr$^{-1}$ in the local Universe and up to $\sim9\%$ of these events may have a detectable eccentricity at LVK design sensitivity. Additionally, we find that triple systems could play an important role in retaining second-generation BHs, which can later merge again in the core of the host cluster.
description: 21 Pages, 11 Figures, 2 Tables, Accepted for publication in ApJ
Copy of letter from R. A. Lambert to J. E. [John Edgar] McAllister, September 22, 1916
Creators: name: Lambert, R. A.
Publisher: name: The University of British Columbia
Year: 2017

description: A copy of a letter to J. E. [John Edgar] McAllister from R. A. Lambert, dated September 22, 1916, regarding Lambert's resignation; originally enclosed within a letter to James Goldie dated September 27, 2016.
title: Is Socially Responsible Investing Really Beneficial? New Empirical Evidence for the US and European Stock Markets
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Moollet, Janick Christian
name: Ziegler, Andreas
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: Education
Erziehung, Schul- und Bildungswesen
Portfolio analysis
Risk factors
Socially responsible investing
Corporate sustainability performance
Stock performance
Asset pricing models

description: This paper empirically examines the theoretically ambivalent relationship between socially responsible investing (SRI) and stock performance. It extends the existing literature by considering both the US and the entire European stock markets as well as by using consistent world-wide corporate sustainability performance data. Our portfolio analysis from 1998 to 2009 reveals the appeal of a recently constructed financial databank comprising the common market return, size, value, and momentum factors according to Carhart (1997). These risk factors from the four-factor model allow us to estimate more reliable risk-adjusted returns than in the restrictive one-factor model based on the Capital Asset Pricing Model. In both the US and European stock markets we find that SRI is associated with large-sized firms. However, this investment strategy generally leads to insignificant abnormal returns when all four risk factors are considered so that we find no evidence that SRI is either penalized or rewarded by the stock markets.
Aperiodic order and pure point diffraction
Creators: name: Lenz, Daniel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We give a leisurely introduction into mathematical diffraction theory with a focus on pure point diffraction. In particular, we discuss various characterisations of pure point diffraction and common models arising from cut and project schemes. We finish with a list of open problems.
description: 14 pages
Spin Structure and Resonant Driving of Spin-1/2 Defects in SiC
Creators: name: Tissot, Benedikt
name: Burkard, Guido
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Transition metal (TM) defects in silicon carbide have favorable spin coherence properties and are suitable as quantum memory for quantum communication. To characterize TM defects as quantum spin-photon interfaces, we model defects that have one active electron with spin 1/2 in the atomic $D$ shell. The spin structure, as well as the magnetic and optical resonance properties of the active electron emerge from the interplay of the crystal potential and spin-orbit coupling and are described by a general model derived using group theory. We find that the spin-orbit coupling leads to additional allowed transitions and a modification of the $g$-tensor. To describe the dependence of the Rabi frequency on the magnitude and direction of the static and driving fields, we derive an effective Hamiltonian. This theoretical description can also be instrumental to perform and optimize spin control in TM defects.
description: 14 pages (including appendices), 6 figures
Casimir densities for two spherical branes in Rindler-like spacetimes
Creators: name: Saharian, A. A.
name: Setare, M. R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Wightman function, the vacuum expectation values of the field square and the energy-momentum tensor are evaluated for a scalar field obeying the Robin boundary conditions on two spherical branes in (D+1)-dimensional Rindler-like spacetime $Ri\times S^{D-1}$, with a two-dimensional Rindler spacetime $Ri$. This spacetime approximates the near horizon geometry of (D+1)-dimensional black hole. By using the generalized Abel-Plana formula, the vacuum expectation values are presented as the sum of single brane and second brane induced parts. Various limiting cases are studied. The vacuum forces acting on the branes are decomposed into the self-action and interaction terms. The interaction forces are investigated as functions of the brane locations and coefficients in the boundary conditions.
description: 15 pages
Mention Extraction and Linking for SQL Query Generation
Creators: name: Ma, Jianqiang
name: Yan, Zeyu
name: Pang, Shuai
name: Zhang, Yang
name: Shen, Jianping
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: On the WikiSQL benchmark, state-of-the-art text-to-SQL systems typically take a slot-filling approach by building several dedicated models for each type of slots. Such modularized systems are not only complex butalso of limited capacity for capturing inter-dependencies among SQL clauses. To solve these problems, this paper proposes a novel extraction-linking approach, where a unified extractor recognizes all types of slot mentions appearing in the question sentence before a linker maps the recognized columns to the table schema to generate executable SQL queries. Trained with automatically generated annotations, the proposed method achieves the first place on the WikiSQL benchmark.
description: Accepted in EMNLP 2020. This work is also known as "IE-SQL: Text-to-SQL as Information Extraction"
The old open cluster NGC 2112: updated estimates of fundamental parameters based on a membership analysis
Creators: name: Carraro, Giovanni
name: Villanova, Sandro
name: Demarque, Pierre
name: Bidin, Christian Moni
name: McSwain, Ginny
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on a new, wide field ($20^{\prime} \times 20^{\prime}$), multicolor ($UBVI$), photometric campaign in the area of the nearby old open cluster NGC 2112. At the same time, we provide medium-resolution spectroscopy of 35 (and high-resolution of additional 5) Red Giant and Turn Off stars. This material is analyzed with the aim to update the fundamental parameters of this traditionally difficult cluster, which is very sparse and suffers from heavy field star contamination. Among the 40 stars with spectra, we identified 21 {\it bona fide} radial velocity members which allow us to put more solid constraints on the cluster's metal abundance, long suggested to be as low as the metallicity of globulars. As indicated earlier by us on a purely photometric basis (Carraro et al. 2002), the cluster [Fe/H] abundance is slightly super-solar ([Fe/H] =0.16$\pm$0.03) and close to the Hyades value, as inferred from a detailed abundance analysis of 3 of the 5 stars with higher resolution spectra. Abundance ratios are also marginally super solar. Based on this result, we revise the properties of NGC 2112 using stellar models from the Padova and Yale-Yonsei groups. For this metal abundance, we find the cluster's age, reddening, and distance values are 1.8 Gyr, 0.60 mag, and 940 pc, respectively. Both the Yale-Yonsei and Padova models predict the same values for the fundamental parameters within the errors. Overall, NGC 2112 is a typical solar neighborhood, thin disk star cluster, sharing the same chemical properties of F-G stars and open clusters close to the Sun. This investigation outlines the importance of a detailed membership analysis in the study of disk star clusters.
description: 12 pages, 10 eps figure, in press in MNRAS
title: Is a “Firm” a Firm? A Stackelberg Experiment
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Hildenbrand, Andreas
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: experimental economics.
industrial organization
Stackelberg game
Economics
Wirtschaft
individual behavior
team behavior, framing

description: Industrial organization is mainly concerned with the behavior of large firms. Experimental industrial organization therefore faces a problem: How can firms be brought into the laboratory? The main approach relies on framing: Call individuals “firms”! This experimental approach is not in line with modern industrial organization, according to which a firm’s market behavior is also determined by its organizational structure. In this paper, a Stackelberg experiment is considered in order to answer the question whether framing individual decision making as organizational decision making or implementing an organizational structure is more effective in generating profit-maximizing behavior. Firms are either represented by individuals or by teams. I find that teams’ quantity choices are more in line with the assumption of profit maximization than individuals’ choices. Compared to individuals, teams appear to be less inequality averse.
Time imaging reconstruction for the PANDA Barrel DIRC
Creators: name: Dzhygadlo, R.
name: Ali, A.
name: Belias, A.
name: Gerhardt, A.
name: Krebs, M.
name: Lehmann, D.
name: Peters, K.
name: Schepers, G.
name: Schwarz, C.
name: Schwiening, J.
name: Traxler, M.
name: Schmitt, L.
name: Böhm, M.
name: Lehmann, A.
name: Pfaffinger, M.
name: Stelter, S.
name: Uhlig, F.
name: Düren, M.
name: Etzelmüller, E.
name: Föhl, K.
name: Hayrapetyan, A.
name: Köseoglu, I.
name: Kreutzfeld, K.
name: Rieke, J.
name: Schmidt, M.
name: Wasem, T.
name: Sfienti, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The innovative Barrel DIRC (Detection of Internally Reflected Cherenkov light) counter will provide hadronic particle identification (PID) in the central region of the PANDA experiment at the new Facility for Antiproton and Ion Research (FAIR), Darmstadt, Germany. This detector is designed to separate charged pions and kaons with at least 3 standard deviations for momenta up to 3.5 GeV/c, covering the polar angle range of 22$^{\circ}$-140$^{\circ}$. An array of microchannel plate photomultiplier tubes is used to detect the location and arrival time of the Cherenkov photons with a position resolution of 2 mm and time precision of about 100 ps. The time imaging reconstruction has been developed to make optimum use of the observables and to determine the performance of the detector. This reconstruction algorithm performs particle identification by directly calculating the maximum likelihoods using probability density functions based on detected photon propagation time in each pixel, determined directly from the data, or analytically, or from detailed simulations.
description: International Workshop on Fast Cherenkov Detectors (DIRC2019)
Simultaneous amplification and non-symmetric amplitude damping of two-mode Gaussian state
Creators: name: Chen, Xiao-yu
name: Jiang, Li-zhen
name: Chen, Ji-wu
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The evolution of two-mode Gaussian state under symmetric amplification, non-symmetric damping and thermal noise is studied. The time dependent solution of the state characteristic function is obtained. The separability criterions are given for the final state of weak amplification as well as strong amplification.
description: 6 pages, 2 figures
Optimal angular window for observing Dark Matter annihilation from the Galactic Center region: the case of gamma-ray lines
Creators: name: Serpico, Pasquale D.
name: Zaharijas, Gabrijela
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Although the emission of radiation from dark matter annihilation is expected to be maximized at the Galactic Center, geometric factors and the presence of point-like and diffuse backgrounds make the choice of the angular window size to optimize the chance of a signal detection a non-trivial problem. Contrarily to what is often assumed, we find that the best strategy is to focus on a window size around the Galactic Center of ~ 1 deg to >~ 30 deg, where the optimal size depends on the angular distribution of the signal and the backgrounds. Although our conclusions are general, we illustrate this point in the particular case of annihilation into two monochromatic photons in the phenomenologically most interesting range of energy 45 GeV < E < 80 GeV, which is of great interest for the GLAST satellite. We find for example that Dark Matter models with sufficiently strong line annihilation signals, like the Inert Doublet Model, may be detectable without or with very moderate boost factors.
description: 7 pages, 3 figures. Matched to the published version
Grüter, Verena / Schubert, Benedict (Hrsg.), Klangwandel
Creators: name: Klaiber, Walter
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 60 Nr. 3 (2011): Ökumenische Rundschau, Band 60, Heft 3
title: Do poor health conditions lead to higher allocation of development assistance?
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Stepping, Katharina
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: MDGs
Health
Assistance
Foreign aid
Economics
Wirtschaft
Aid policy

description: This paper analyzes the targeting of development assistance for health across countries in a multivariate regression framework, based on data from 22 bilateral donors to 160 recipients between 1990 and 2007. Donor characteristics, recipient characteristics and the donor-recipient-relationship are argued to be important determinants. The results show that health indicators influence the average allocation decision, but not to the same degree. HIV prevalence significantly increases aid receipts, while under-five mortality and maternal mortality are insignificant. The quality of the institutional environment in the recipient country, programmatic preferences of the donor and the relationship between donor and recipient also affect the average allocation pattern.
A population of binaries in the Asymptotic Giant Branch of 47 Tucanae?
Creators: name: Beccari, Giacomo
name: Ferraro, Francesco R.
name: Lanzoni, Barbara
name: Bellazzini, Michele
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used a set of archived Hubble Space Telescope/ACS images to probe the evolved populations of the globular cluster 47 Tucanae. We find an excess of Asymptotic Giant Branch (AGB) stars in the cluster core. We interpret this feature as the signature of an extra-population likely made by the progeny of massive stars originated by the evolution of binary systems. Indeed the comparison with theoretical tracks suggests that the AGB population of 47 Tuc can be significantly contaminated by more massive stars currently experiencing the first ascending Red Giant Branch.
description: 14 pages, 4 figures, in press on ApJ Letters
Tunable ferromagnetism at non-integer filling of a moiré superlattice
Creators: name: Chen, Guorui
name: Sharpe, Aaron L.
name: Fox, Eli J.
name: Wang, Shaoxin
name: Lyu, Bosai
name: Jiang, Lili
name: Li, Hongyuan
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Crommie, Michael F.
name: Kastner, M. A.
name: Shi, Zhiwen
name: Goldhaber-Gordon, David
name: Zhang, Yuanbo
name: Wang, Feng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The flat bands resulting from moiré superlattices in magic-angle twisted bilayer graphene (MATBG) and ABC-trilayer graphene aligned with hexagonal boron nitride (ABC-TLG/hBN) have been shown to give rise to fascinating correlated electron phenomena such as correlated insulators and superconductivity. More recently, orbital magnetism associated with correlated Chern insulators was found in this class of layered structures centered at integer multiples of n0, the density corresponding to one electron per moiré superlattice unit cell. Here we report the experimental observation of ferromagnetism at fractional filling of a flat Chern band in an ABC-TLG/hBN moirésuperlattice. The ferromagnetic state exhibits prominent ferromagnetic hysteresis behavior with large anomalous Hall resistivity in a broad region of densities, centered in the valence miniband at n = -2.3 n0. This ferromagnetism depends very sensitively on the control parameters in the moiré system: not only the magnitude of the anomalous Hall signal, but also the sign of the hysteretic ferromagnetic response can be modulated by tuning the carrier density and displacement field. Our discovery of electrically tunable ferromagnetism in a moiré Chern band at non-integer filling highlights the opportunities for exploring new correlated ferromagnetic states in moiré heterostructures.
description: 12 pages, 4 figures
Deep Neural Network Approach for Annual Luminance Simulations
Creators: name: Liu, Yue
name: Colburn, Alex
name: Inanici, Mehlika
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Graphics (cs.GR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Annual luminance maps provide meaningful evaluations for occupants' visual comfort, preferences, and perception. However, acquiring long-term luminance maps require labor-intensive and time-consuming simulations or impracticable long-term field measurements. This paper presents a novel data-driven machine learning approach that makes annual luminance-based evaluations more efficient and accessible. The methodology is based on predicting the annual luminance maps from a limited number of point-in-time high dynamic range imagery by utilizing a deep neural network (DNN). Panoramic views are utilized, as they can be post-processed to study multiple view directions. The proposed DNN model can faithfully predict high-quality annual panoramic luminance maps from one of the three options within 30 minutes training time: a) point-in-time luminance imagery spanning 5% of the year, when evenly distributed during daylight hours, b) one-month hourly imagery generated or collected continuously during daylight hours around the equinoxes (8% of the year); or c) 9 days of hourly data collected around the spring equinox, summer and winter solstices (2.5% of the year) all suffice to predict the luminance maps for the rest of the year. The DNN predicted high-quality panoramas are validated against Radiance (RPICT) renderings using a series of quantitative and qualitative metrics. The most efficient predictions are achieved with 9 days of hourly data collected around the spring equinox, summer and winter solstices. The results clearly show that practitioners and researchers can efficiently incorporate long-term luminance-based metrics over multiple view directions into the design and research processes using the proposed DNN workflow.
title: The determinants of selection and allocation decisions for health assistance. Which role do health indicators play?
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Stepping, Katharina
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: Aid policy
MDGs
Assistance
Health
Foreign aid
Economics
Wirtschaft

description: This paper analyzes the selection and allocation decisions of major and like-minded bilateral donors as regards development assistance for health for the period of 1990 till 2007. The central question is to what extent health indicators, reflecting the health objectives stated in the Millennium Development Goals, influence such decisions. The analysis reveals that health indicators are important determinants of the selection and allocation process for health assistance but to a different degree at the two stages; HIV prevalence is the proxy with the strongest impact. The results also show that the quality of the institutional environment and the bilateral relations affect the decisions of many donors. The national health expenditures, however, have no systematic effect and the allocation pattern of possible competitors is irrelevant for almost all donors. The evidence illustrates, furthermore, the great heterogeneity among major and like-minded donors as well as the differences between selection and allocation stage.
title: Does the Iranian oil supply matter for the oil prices?
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Farzanegan, Mohammad Reza
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: Oil production
Sanction
Oil price
Granger causality
Economics
Wirtschaft
Iran
VAR model

description: There is an increasing tension between the Iranian Government and the west on an increasingly likely European oil embargo and the Iranian threat to close the Strait of Hormuz. The main question is: What will happen to the international oil prices in the case of shocks in the flow of Iranian oil to the international markets? In this study, we analyze the dynamic relationship between the Iranian oil supply and international oil prices from January 1973 -September 2011, using a modified version of the Granger causality test introduced by Toda and Yamamoto (1995). Our results show that there is no Granger causality between the Iranian oil production and international oil prices. Historical data on the Iranian oil production do not provide any useful information to explain the current and future values of international oil prices. Thus, global oil prices do not follow shocks in the Iranian oil production.
Alpha-particle condensation in 16O via a full four-body OCM calculation
Creators: name: Funaki, Y.
name: Yamada, T.
name: Horiuchi, H.
name: Roepke, G.
name: Schuck, P.
name: Tohsaki, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In order to explore the 4 α-particle condensate state in 16O, we solve a full four-body equation of motion based on the 4 αOCM (Orthogonality Condition Model) in a large 4 αmodel space spanned by Gaussian basis functions. A full spectrum up to the 0_6^+ state is reproduced consistently with the lowest six 0^+ states of the experimental spectrum. The 0^+_6 state is obtained at about 2 MeV above the 4 αbreakup threshold and has a dilute density structure, with a radius of about 5 fm. The state has an appreciably large αcondensate fraction of 61 %, and a large component of α+12C(0_2^+) configuration, both features being reliable evidence for this state to be of 4 αcondensate nature.
description: 4 pages, 3 figures and 1 table
Coupling spins to nanomechanical resonators: Toward quantum spin-mechanics
Creators: name: Wang, Hailin
name: Lekavicius, Ignas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spin-mechanics studies interactions between spin systems and mechanical vibrations in a nanomechanical resonator and explores their potential applications in quantum information processing. In this tutorial, we summarize various types of spin-mechanical resonators and discuss both the cavity-QED-like and the trapped-ion-like spin-mechanical coupling processes. The implementation of these processes using negatively charged nitrogen vacancy and silicon vacancy centers in diamond is reviewed. Prospects for reaching the full quantum regime of spin-mechanics, in which quantum control can occur at the level of both single spin and single phonon, are discussed with an emphasis on the crucial role of strain coupling to the orbital degrees of freedom of the defect centers.
MPEC 2024-T197 : 2024 TD6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TD6

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Terrorism Risk and Democratic Preferences in Pakistan
Creators: name: Ur Rehman, Faiz
name: Vanin, Paolo
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: SECS-P/01 Economia politica

description: Beyond direct damages, terrorism creates fear and insecurity, potentially reducing support for democratic institutions if these are deemed inadequate to tackle the threat, and increasing support for military governments. To investigate this possibility, we use data from Pakistan, a country that experienced an exponential rise in terrorism since 2001. Exploiting individual level
data on democratic attitudes and district level information on terrorist attacks, we document that persistent exposure to terrorism (and more broadly to violence) is associated to a significantly lower support for democratic values. Results are robust to the inclusion of different sets of controls, to sample splits based on gender, urbanization and education, and to endogeneity considerations. Instrumenting terrorism and violence by the distance from the Pak-Afghan border and by religious fractionalization suggests that the documented correlation reflects a causal impact. Terrorism thus threatens not only individuals, but also democratic institutions.