cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spin Damping in an RF Atomic Magnetometer
Creators: name: Alem, Orang
name: Sauer, Karen L.
name: Romalis, Mike V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Under negative feedback, the quality factor Q of a radio-frequency magnetometer can be decreased by more than two orders of magnitude, so that any initial perturbation of the polarized spin system can be rapidly damped, preparing the magnetometer for detection of the desired signal. We find that noise is also suppressed under such spin-damping, with a characteristic spectral response corresponding to the type of noise; therefore magnetic, photon-shot, and spin-projection noise can be measured distinctly. While the suppression of resonant photon-shot noise implies the closed-loop production of polarization-squeezed light, the suppression of resonant spin-projection noise does not imply spin-squeezing, rather simply the broadening of the noise spectrum with Q. Furthermore, the application of spin-damping during phase-sensitive detection suppresses both signal and noise in such a way as to increase the sensitivity bandwidth. We demonstrate a three-fold increase in the magnetometer's bandwidth while maintaining 0.3 fT/\surdHz sensitivity.
description: 24 pages, 7 figures
Relativistic treatment of diamagnetic susceptibility of helium
Creators: name: Puchalski, Mariusz
name: Lesiuk, Michał
name: Jeziorski, Bogumił
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We report theoretical calculations of the diamagnetic susceptibility, $χ_0$, of helium atom. We determined the complete relativistic correction to $χ_0$ of the order of $α^4$, where $α$ is the fine structure constant, by including all $α^4$ terms originating from the Dirac and Breit equations for a helium atom in a static magnetic field. Finite nuclear mass corrections to $χ_0$ was also evaluated. To obtain very accurate results and reliable uncertainty estimates we used a sequence of explicitly correlated basis sets of fully optimized Slater geminals. We found that $χ_0=-2.119\,106(34)\cdot10^{-5}$ $a_0^3$ and $χ_0=-2.119\,400(34)\cdot10^{-5}$ $a_0^3$ for $^4$He and $^3$He isotopes, respectively, where $a_0$ is the Bohr radius and the uncertainties shown in the parentheses are due entirely to the very conservative estimate of the neglected QED corrections of the order of $α^5$. Our results are compared with the available experimental data and with previous, incomplete theoretical determinations of the $α^4$ contributions to the diamagnetic susceptibility of helium.
Classification of three dimensional complex omega-Lie algebras
Creators: name: Chen, Yin
name: Liu, Chang
name: Zhang, Run-Xuan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17B60, 17A30

description: A complex $ω$-Lie algebra is a vector space $L$ over the complex field, equipped with a skew symmetric bracket $[-,-]$ and a bilinear form $ω$ such that $$[[x,y],z]+[[y,z],x]+ [[z,x],y]=ω(x,y)z+ω(y,z)x+ω(z,x)y$$ for all $x,y,z\in L$. The notion of $ω$-Lie algebras, as a generalization of Lie algebras, was introduced in Nurowski \cite{Nur2007}. Fundamental results about finite-dimensional $ω$-Lie algebras were developed by Zusmanovich \cite{Zus2010}. In \cite{Nur2007}, all three dimensional non-Lie real $ω$-Lie algebras were classified. The purpose of this note is to provide an approach to classify all three dimensional non-Lie complex $ω$-Lie algebras. Our method also gives a new proof of the classification in Nurowski \cite{Nur2007}.
description: To appear in Port. Math
Dries Raeymaekers, Sebastiaan Derks (ed.), The Key to Power? The Culture of Access in Princely Courts, 1400–1750, Leiden (Brill Academic Publishers) 2016
Creators: name: Bourdeu, Étienne
Publisher: name: Francia-Recensio
Year: 2018

description: Dries Raeymaekers, Sebastiaan Derks (ed.), The Key to Power? The Culture of Access in Princely Courts, 1400–1750, Leiden (Brill Academic Publishers) 2016, 369 p., 11 ill., ISBN 978-90-04-274839, EUR 135,00.
description: Francia-Recensio, 2018/3
$Γ$-conjugate weight enumerators and invariant theory
Creators: name: Nebe, Gabriele
name: Scheeren, Leonie
Publisher: name: arXiv
Year: 2023
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 13A50, 94B60, 11S20

description: Let $K$ be a field, $Γ$ a finite group of field automorphisms of $K$, $F$ the $Γ$-fixed field in $K$ and $G\leq $GL$_v(K)$ a finite matrix group. Then the action of $Γ$ defines a grading on the symmetric algebra of the $F$-space $K^v$ which we use to introduce the notion of homogeneous $Γ$-conjugate invariants of $G$. We apply this new grading in invariant theory to broaden the connection between codes and invariant theory by introducing $Γ$-conjugate complete weight enumerators of codes. The main result of this paper applies the theory from Nebe, Rains, Sloane to show that under certain extra conditions these new weight enumerators generate the ring of $Γ$-conjugate invariants of the associated Clifford-Weil groups. As an immediate consequence we obtain a result by Bannai etal that the complex conjugate weight enumerators generate the ring of complex conjugate invariants of the complex Clifford group. Also the Schur-Weyl duality conjectured and partly shown by Gross etal can be derived from our main result.
Pattern dynamics of cohesive granular particles under a plane shear
Creators: name: Takada, Satoshi
name: Hayakawa, Hisao
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We perform three dimensional molecular dynamics simulations of cohesive granular particles under a plane shear. From the simulations, we found that the granular temperature of the system abruptly decreases to zero after reaching the critical temperature, where the characteristic time $t_{\rm cl}$ is approximately represented by $t_{\rm cl} \propto (ζ-ζ_{\rm cr})^{-β}$ with the dissipation rate $ζ$, the critical dissipation rate $ζ_{\rm cr}$ and the exponent $β\simeq 0.8$. We also found that there exist a variety types of clusters depending on the initial density and the dissipation rate.
description: 4 pages, 5 figures
Pedestrian flow through multiple bottlenecks
Creators: name: Ezaki, Takahiro
name: Yanagisawa, Daichi
name: Nishinari, Katsuhiro
Publisher: name: arXiv
Year: 2012
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We investigate the dynamics of the evacuation process with multiple bottlenecks using the floor field model. To deal with this problem, we first focus on a part of the system and report its microscopic behavior. The system is controlled by parameters of inflow and the competitiveness of the pedestrians, and large inflow leads to a congested situation. Through simulations, the metastable state induced by conflicts of pedestrians is observed. The metastability is related to the phase transition from free flow to congestion. The critical condition of the transition is theoretically derived. In addition, we give simulation results of situations with multiple bottlenecks. They imply that local improvement of pedestrian flow sometimes adversely affects the total evacuation time, and that the total optimization of the system is not straightforward.
description: 8 pages, 9 figures
title: A política nas políticas de cooperação portuguesa (1974-2014)
Creators: name: Pinto da Costa, Fernando
name: de Sousa Júnior, Fernando
Publisher: name: Universidade Lusíada Editora
Year: 2014

description: Lusíada. Política internacional e segurança. - ISSN 1647-1342. - S. 1, n. 10 (2014). - p. 141-176
Additional file 5 of Scoping review of the association between bacterial vaginosis and emotional, sexual and social health
Creators: name: Brusselmans, Judith
name: De Sutter, An
name: Devleesschauwer, Brecht
name: Verstraelen, Hans
name: Cools, Piet
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional File 4: Table S3: Characteristics of excluded studies
Mogera wogura
Creators: name: Hutterer, Rainer
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Insectivora
Talpidae
Mogera
Mogera wogura

description: Mogera wogura (Temminck, 1842). In Siebold, Fauna Japonica, l(Mamm.), 1:19. TYPE LOCALITY: Japan, Yokohama, Honshu; restricted by Thomas (1905b). DISTRIBUTION: Japan (Honshu, Kyushu, Tane, Amakusa, Tsushima and other Isis.). COMMENTS: For a taxonomic discussion see Corbet (1978c:35).
description: Published as part of Rainer Hutterer, 1993, Order Insectivora, pp. 69-130 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 126, DOI: 10.5281/zenodo.7353085
description: {"references": ["Thomas, O. 1905 b. On new Japanese mammals (Insectivora, Rodentia). Annals and Magazine of Natural History, ser. 7, 15: 487 - 495.", "Corbet, G. B. 1978 c. The mammals of the Palaearctic region: A taxonomic review. British Museum (Natural History), London, 314 pp."]}
MOESM3 of MicroRNA expression profiling of goat peripheral blood mononuclear cells in response to peste des petits ruminants virus infection
Creators: name: Qi, Xuefeng
name: Wang, Ting
name: Xue, Qinghong
name: Li, Zhen
name: Yang, Bo
name: Wang, Jingyu
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 3. Details of differentially expressed known and novel microRNA (miRNA) in PPRV- versus mock-infected goat PBMC. A total of 316 miRNA (including 103 known miRNA and 213 novel miRNA) were differentially expressed in mock- and PPRV-infected groups. Among these 316 DEmiRNA, 147 miRNA were upregulated and 169 miRNA were downregulated in the PPRV-infected cells compared to the mock-infected cells.
title: Assessing the bias due to non-coverage of residential movers in the German Microcensus panel
title: an evaluation using data from the socio-economic panel
titleType: Subtitle
Creators: name: Rendtel, Ulrich
name: Basic, Edin
Publisher: name: Freie Universität Berlin
Year: 2007
Subjects: subject: panel survey
subject: labour market analysis
subject: residential mobility
subject: non-coverage bias
subject: log-linear modelling
subject: inverse probability weighting
subject: 300 Sozialwissenschaften::330 Wirtschaft

description: The German Microcensus (MC) is a large scale rotating panel survey over three years. The MC is attractive for longitudinal analysis over the entire participation duration because of the mandatory participation and the very high case numbers (about 200 thousand respondents). However, as a consequence of the area sampling that is used for the MC , residential mobility is not covered and consequently statistical information at the new residence is lacking in theMCsample. This raises the question whether longitudinal analyses, like transitions between labour market states, are biased and how different methods perform that promise to reduce such a bias. Based on data of the German Socio-Economic Panel (SOEP), which covers residential mobility, we analysed the effects of missing data of residential movers by the estimation of labour force flows. By comparing the results from the complete SOEP sample and the results from the SOEP, restricted to the non-movers, we concluded that the non-coverage of the residential movers can not be ignored in Rubin’s sense. With respect to correction methods we analysed weighting by inverse mobility scores and loglinear models for partially observed contingency tables. Our results indicate that weighting by inverse mobility scores reduces the bias to about 60 percent whereas the official longitudinal weights obtained by calibration result in a bias reduction of about 80 percent. The estimation of loglinear models for nonignorable nonresponse leads to very unstable results.
Reversal of magnetization of a single-domain magnetic particle by the ac field of time-dependent frequency
Creators: name: Cai, Liufei
name: Garanin, D. A.
name: Chudnovsky, E. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report numerical and analytical studies of the reversal of the magnetic moment of a single-domain magnetic particle by a circularly polarized ac field of time-dependent frequency. For the time-linear frequency sweep, the phase diagrams are computed that illustrate the dependence of the reversal on the frequency sweep rate v, the amplitude of the ac field h, the magnetic anisotropy field d, and the damping parameter alpha. It is shown that the most efficient magnetization reversal requires a non-linear time dependence of the frequency, omega(t), for which an exact analytical formula is derived with account of damping. The necessary condition of the reversal is h > alpha d. Implementation of a small-scale magnetization reversal is proposed in which a nanomagnet is electromagnetically coupled to two weak superconducting links controlled by the voltage. Dynamics of such a system is analyzed with account of the back effect of the magnet on the superconducting links.
description: 11 pages, 16 figures, 0 tables
On the 'Loose' Constraint from IceCube Neutrino Non-Detection of GRB 230307A
Creators: name: Song, Xin-Ying
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The recent extremely bright gamma-ray burst (GRB), GRB 230307A from a binary neutron star merger may offer a good probe for the production of GRB-neutrinos. Within the constraint from IceCube neutrino non-detection, the limits for key physical parameters of this burst are extracted in different scenarios including the fireball, Poynting-flux-dominated (PFD) and hybrid jet. Different from the former nearby `monsters' and due to its smaller isotropic equivalent radiated energy ($E_{γ,\rm iso}\sim4\times10^{52}$ erg), the constraint seems loose if non-thermal neutrinos produced from photomeson interactions are the only consideration. However, a quasi-thermal neutrino emission from hadronuclear processes is constrained in this neutron-rich post-merger environment, and the upper limit of the allowed nucleon loading factor is about a few. Based on this, a discussion is presented on the possible prompt emission mechanism and jet composition for GRB 230307A in the context of multi-messenger astrophysics. It is worth noting that till now no GRB-neutrinos have been ever detected, even for the two brightest nearby GRBs ever observed (GRB 221009A and GRB 230307A) which have different dissipation mechanisms.
description: Published in ApJ 958,133;accepted for publication in ApJ on Oct. 11; 13 pages, 3 figures. submitted on 2023.08.11. Minor revision according to the reviwer's suggestions on Oct. 02
title: A political theory of Russian orthodoxy
title: evidence from public goods experiments
titleType: Subtitle
Creators: name: Grigoriadis, Theocharis
Publisher: name: Freie Universität Berlin
Year: 2013
Subjects: subject: Public goods experiments
subject: bureaucracy
subject: enforcement
subject: Russia
subject: religion
subject: incomplete information
subject: hierarchy
subject: 300 Sozialwissenschaften::330 Wirtschaft
subject: 300 Sozialwissenschaften::330 Wirtschaft::336 Öffentliche Finanzen

description: In this paper, I test the effects of religious norms on the provision of public goods. My evidence is drawn from public goods experiments that I ran with regional bureaucrats in Tomsk and Novosibirsk, Russia. I introduce three treatments, which I define as degrees of Eastern Orthodox collectivist enforcement: 1. Solidarity, 2. Obedience, and 3. Universal discipline. I argue for the existence of an Eastern Orthodox hierarchy in the Russian bureaucracy that facilitates the delivery of public goods under conditions of universal discipline and the principal’s overfulfillment. Eastern Orthodox hierarchy is enforced through universal disciplinary monitoring, which induces collective punishment when the public good is not delivered. Contrary to conventional wisdom about freeriding in administrative institutions, higher ranks in Russian bureaucracies are associated with less freeriding.
New energy spectra in neutrino and photon detectors to reveal hidden dark matter signals
Creators: name: Beenakker, Wim
name: Caron, Sascha
name: Kip, Jochem
name: de Austri, Roberto Ruiz
name: Zhang, Zhongyi
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Neutral particles capable of travelling cosmic distances from a source to detectors on Earth are limited to photons and neutrinos. Examination of the Dark Matter annihilation/decay spectra for these particles reveals the presence of continuum spectra (e.g. due to fragmentation and W or Z decay) and peaks (due to direct annihilations/decays). However, when one explores extensions of the Standard Model (BSM), unexplored spectra emerge that differ significantly from those of the Standard Model (SM) for both neutrinos and photons. In this paper, we argue for the inclusion of important spectra that include peaks as well as previously largely unexplored entities such as boxes and combinations of box, peak and continuum decay spectra.
description: 7 pages, 2 figures
Additional file 6 of Scoping review of the association between bacterial vaginosis and emotional, sexual and social health
Creators: name: Brusselmans, Judith
name: De Sutter, An
name: Devleesschauwer, Brecht
name: Verstraelen, Hans
name: Cools, Piet
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional File 6: Table S3: Summary of studies reporting on the association stress and BV
Subjective Evaluation versus Public Information
Creators: name: Bester, Helmut
name: Münster, Johannes
Publisher: name: Freie Universität Berlin
Year: 2013
Subjects: subject: Subjective evaluation
subject: moral hazard
subject: termination clauses
subject: third–party payments
subject: 300 Sozialwissenschaften::330 Wirtschaft

description: This paper studies a principal–agent relation in which the principal’s private information about the agent’s effort choice is more accurate than a noisy public performance measure. For some contingencies the optimal contract has to specify ex post inefficiencies in the form of inefficient termination (firing the agent) or third–party payments (money burning). We show that money burning is the less efficient incentive device: it is used at most in addition to firing and only if the loss from termination is small. Under an optimal contract the agent’s wage may depend only on the principal’s report and not on the public signal. Nonetheless, public information is valuable as it facilitates truthful subjective evaluation by the principal.
A new numerical approach to Anderson (de)localization
Creators: name: Liaw, Constanze
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We develop a new approach for the Anderson localization problem. The implementation of this method yields strong numerical evidence leading to a (surprising to many) conjecture: The two dimensional discrete random Schroedinger operator with small disorder allows states that are dynamically delocalized with positive probability. This approach is based on a recent result by Abakumov-Liaw-Poltoratski which is rooted in the study of spectral behavior under rank-one perturbations, and states that every non-zero vector is almost surely cyclic for the singular part of the operator. The numerical work presented is rather simplistic compared to other numerical approaches in the field. Further, this method eliminates effects due to boundary conditions. While we carried out the numerical experiment almost exclusively in the case of the two dimensional discrete random Schroedinger operator, we include the setup for the general class of Anderson models called Anderson-type Hamiltonians. We track the location of the energy when a wave packet initially located at the origin is evolved according to the discrete random Schroedinger operator. This method does not provide new insight on the energy regimes for which diffusion occurs.
description: 15 pages, 8 figures
Linear and Nonlinear Adaptive Attitude Control of Asteroid-Orbiting Spacecraft Using State Feedback and Output Feedback
Creators: name: Moya, Nicholas
Publisher: name: University of Nevada, Las Vegas
Year: 2018

description: This thesis presents the derivation of both a linear and nonlinear adaptive control law for the attitude states of a spacecraft in orbit around rotating asteroids. The asteroid is assumed to be irregularly shaped and in an elliptical orbit around the sun. The linearized, time-varying spacecraft model will assume to include unknown parameters and will have external disturbances present. The objective is to control the roll, pitch, and yaw angle trajectories of the spacecraft such that they track desired reference trajectories. To achieve this, the control law will be composed of (1) a feedback controller, sufficiently robust to disturbance such that the system is stable, and (2) an adaptation law to estimate unknown parameters. The design of the linear control law will assume that only the angle measurements of the attitude states will be available for feedback. A high-gain observer will then be designed to estimate the higher-order states necessary to synthesis the control law. It will be shown that the tracking error, as well as the observation error, approach zero in finite time within the closed-loop system. The controller is able to accomplish this while being bounded to a saturation limit to reflect genuine thruster constraints. When the nonlinear, time-varying model is considered, unknown parameters are again assumed to be present. To govern the nonlinearities, and uncertainties present in the model, an adaptive control law is designed using the backstepping method. The control law also incorporates an adaption law, derived from an appropriate Lyapunov function. Using state feedback, it can be seen that the tracking error approaches zero while managing the nonlinearities of the model. For the both the linear and nonlinear systems, simulation results present full attitude control of the spacecraft, despite unknown parameters within the model.
Inhalt
Creators: name: Redaktion, Die
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2018

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 47, Nr. 3 (2018)
Additional file 4 of The experience of pregnant women in contexts of vulnerability of prenatal primary nursing care: a descriptive interpretative qualitative study
Creators: name: Hudon, Émilie
name: Chouinard, Maud-Christine
name: Ellefsen, Édith
name: Beaudin, Jérémie
name: Hudon, Catherine
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 4.
title: German male income volatility 1984 to 2008
title: trends in permanent and transitory income components and the role of the welfare state
titleType: Subtitle
Creators: name: Bartels, Charlotte
name: Bönke, Timm
Publisher: name: Freie Universität Berlin
Year: 2010
Subjects: subject: Earnings Inequality
subject: Permanent Income Inequality
subject: Transitory Income Volatility
subject: Earnings Dynamics
subject: Safety Net
subject: Transfer Payments
subject: 300 Sozialwissenschaften::330 Wirtschaft

description: Deploying data from the German Socio-Economic Panel (GSOEP) we analyze the variability of individual earnings and equivalent household income. Permanent and transitory variances of male income over the period 1984-2008 are estimated for Old German Laender in order to determine their importance to income dynamics. To uncover the role of the welfare state in smoothening earnings shocks we compute different income concepts reaching from gross earnings to net equivalent household income. We find evidence that the overall inequality of earnings in Germany has been rising throughout the period due to both higher permanent inequality and higher volatility. However, taking the welfare state and its institutions into account, we find that net household income has remained fairly stable.
PROBLEMS OF USING ARTIFICIAL INTELLIGENCE CAPABILITIES IN THE PREVENTION OF CORRUPTION VIOLATIONS IN THE FIELD OF PUBLIC PROCUREMENT
Creators: name: Boyturayev, Farhod
Publisher: name: Zenodo
Year: 2025

description: The article discusses the use of artificial intelligence in preventing cases of corruption in public procurement in the Republic of Uzbekistan. The study analyzed the problems of corruption faced in the field of public procurement, with a special focus on further improving the anti-corruption mechanism using artificial intelligence capabilities.
Outlier robust small area estimation under spatial correlation
Creators: name: Schmid, Timo
name: Tzavidis, Nikos
name: Münnich, Ralf
name: Chambers, Ray
Publisher: name: Freie Universität Berlin
Year: 2015
Subjects: subject: Bias correction
subject: projective and predictive estimators
subject: spatial correlation
subject: business surveys
subject: 300 Sozialwissenschaften::310 Statistiken

description: Modern systems of official statistics require the estimation and publication of business statistics for disaggregated domains, for example, industry domains and geographical regions. Outlier robust methods have proven to be useful for small area estimation. Recently proposed outlier robust modelbased small area methods assume, however, uncorrelated random effects. Spatial dependencies, resulting from similar industry domains or geographic regions, often occur. In this paper we propose outlier robust small area methodology that allows for the presence of spatial correlation in the data. In particular, we present a robust predictive methodology that incorporates the potential spatial impact from other areas (domains) on the small area (domain) of interest. We further propose two parametric bootstrap methods for estimating the mean-squared error. Simulations indicate that the proposed methodology may lead to efficiency gains. The paper concludes with an illustrative application by using business data for estimating average labour costs in Italian provinces.
Numerical interactions between compactons and kovatons of the Rosenau-Pikovsky K(cos) equation
Creators: name: Garralón, Julio
name: Rus, Francisco
name: Villatoro, Francisco R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35Q51, 81T80

description: A numerical study of the nonlinear wave solutions of the Rosenau-Pikovsky K(cos) equation is presented. This equation supports at least two kind of solitary waves with compact support: compactons of varying amplitude and speed, both bounded, and kovatons which have the maximum compacton amplitude, but arbitrary width. A new Padé numerical method is used to simulate the propagation and, with small artificial viscosity added, the interaction between these kind of solitary waves. Several numerically induced phenomena that appear while propagating these compact travelling waves are discussed quantitatively, including self-similar forward and backward wavepackets. The collisions of compactons and kovatons show new phenomena such as the inversion of compactons and the generation of pairwise ripples decomposing into small compacton-anticompacton pairs.
Effective taxation of top incomes in Germany
Creators: name: Bach, Stefan
name: Corneo, Giacomo
name: Steiner, Viktor
Publisher: name: Freie Universität Berlin
Year: 2011
Subjects: subject: Personal Income Tax
subject: Taxing the Rich
subject: Effective Progressivity
subject: 300 Sozialwissenschaften::330 Wirtschaft::336 Öffentliche Finanzen

description: We exploit an exhaustive administrative dataset that includes the individual tax returns of all households in the top percentile of the income distribution in Germany to pin down the effective income taxation of households with very high incomes. Taking tax base erosion into account, we find that the top percentile of the income distribution pays an effective average tax rate of 30.5 percent and contributes more than a quarter of total income tax revenue. Within the top percentile, the effective average tax rate is first increasing and then decreasing with income. Since the 1990s, effective average tax rates for the German super rich have fallen by about a third, with major reductions occurring in the wake of the personal income tax reform of 2001-2005. As a result, the concentration of net incomes at the very top of the distribution has strongly increased in Germany.
Low-count Time Series Anomaly Detection
Creators: name: Renz, Philipp
name: Cutajar, Kurt
name: Twomey, Niall
name: Cheung, Gavin K. C.
name: Xie, Hanting
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Low-count time series describe sparse or intermittent events, which are prevalent in large-scale online platforms that capture and monitor diverse data types. Several distinct challenges surface when modelling low-count time series, particularly low signal-to-noise ratios (when anomaly signatures are provably undetectable), and non-uniform performance (when average metrics are not representative of local behaviour). The time series anomaly detection community currently lacks explicit tooling and processes to model and reliably detect anomalies in these settings. We address this gap by introducing a novel generative procedure for creating benchmark datasets comprising of low-count time series with anomalous segments. Via a mixture of theoretical and empirical analysis, our work explains how widely-used algorithms struggle with the distribution overlap between normal and anomalous segments. In order to mitigate this shortcoming, we then leverage our findings to demonstrate how anomaly score smoothing consistently improves performance. The practical utility of our analysis and recommendation is validated on a real-world dataset containing sales data for retail stores.
description: 6 pages, 7 figures, to be published in IEEE 2023 Workshop on Machine Learning for Signal Processing (MLSP)
Nesoscaptor Abe, Shiraishi and Arai 1991
Creators: name: Hutterer, Rainer
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Insectivora
Talpidae
Nesoscaptor

description: Nesoscaptor Abe, Shiraishi and Arai, 1991. J. Mammal. Soc. Japan, 15:48. TYPE SPECIES: Nesoscaptor uchidai Abe, Shiraishi and Arai, 1991. COMMENTS: Tribe Talpini.
description: Published as part of Rainer Hutterer, 1993, Order Insectivora, pp. 69-130 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 126, DOI: 10.5281/zenodo.7353085
description: {"references": ["Abe, H., S. Shiraishi, and S. Arai. 1991. A new mole from Uotsuri-jima, the Ryukyu Islands. Journal of the Mammalogical Society of Japan, 15: 47 - 60."]}
Determinants of the international performance of services a conceptual model
Creators: name: Sichtmann, Christina
name: Griese, Ilka
name: Klein, Maren
Publisher: name: Freie Universität Berlin
Year: 2007
Subjects: subject: Services
subject: export performance
subject: internationalization
subject: success factors
subject: 300 Sozialwissenschaften::330 Wirtschaft

description: Countless determinants of export success that are supposed to help managers reduce the failure rates of export ventures have been identified. Despite this abundance of studies, however, little is known about the determinants of the internationalization success of services. In this paper, based on prior studies focusing primarily on manufactured goods and the key characteristics distinguishing services from goods, a comprehensive conceptual model for the successful internationalization of services is developed.
Emergent $\mathbb{Z}_2$ symmetry near a CDW multicritical point
Creators: name: Kivelson, Steven A.
name: Pandey, Akshat
name: Singh, Anisha G.
name: Kapitulnik, Aharon
name: Fisher, Ian R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider the critical behavior associated with incommensurate unidirectional charge-density-wave ordering in a weakly orthorhombic system subject to uniaxial strain as an experimentally significant example of $U(1)\times U(1)$ multicriticality. We show that, depending on microscopic details, the phase diagram can have qualitatively different structures which can involve a vestigial meta-nematic critical point, a pair of tricritical points, a decoupled tetracritical point, or (at least at mean-field level) a bicritical point. We analyze the emergent symmetries in the critical regime and find that these can -- at least in some cases -- involve an emergent $\mathbb{Z}_2$ order parameter symmetry.
description: 7 pages, 2 figures
title: The impact of international outsourcing on individual employment security
title: a micro-level analysis
titleType: Subtitle
Creators: name: Geishecker, Ingo
Publisher: name: Freie Universität Berlin
Year: 2006
Subjects: subject: outsourcing
subject: displacement
subject: duration analysis
subject: mass points
subject: 300 Sozialwissenschaften::330 Wirtschaft

description: The paper analyzes how international outsourcing affected individual employment security. The analysis is carried out at the micro-level, combining monthly spell data from household panel data and industry-level outsourcing measures. By utilizing micro-level data, problems such as aggregation and potential endogeneity bias, as well as crude skill approximations that regularly hamper industry level displacement studies, can be reduced considerably. The main finding is that international outsourcing significantly lowers individual employment security. Interestingly, the effect does, however, not differ between high-, medium-, and low-skilled workers but only varies with job duration.
Analisis Faktor Kesulitan Guru PPL Mengelola Kelas Dalam Pembelajaran Matematika Di SMA Se-Kota Langsa
Creators: name: Irwansyah, Budi
Publisher: name: figshare
Year: 2022
Subjects: Applied statistics
Other education not elsewhere classified
Higher education
Teacher education and professional development of educators

description: Makalah ini membahas salah satu aplikasi teknik statistik multivariat, yaitu analisis faktor yang bertujuan untuk mengetahui faktor utama apa saja yang menyebabkan kesulitan guru PPL mengelola kelas dalam pembelajaran matematika di SMA se-Kota Langsa. Sampel yang diambil sebanyak 28 mahasiswa PPL Program Studi Pendidikan Matematika (Prodi PMA) STAIN Zawiyah Cot Kala Langsa, yang tekniknya dilakukan dengan cara sensus (sampling jenuh). Hasil penelitian ini menunjukkan bahwa total persentase varians dari keempat faktor yang menyebabkan guru PPL kesulitan mengelola kelas dalam pembelajaran matematika adalah sebesar 57,926%, dimana faktor dominannya adalah adanya toleransi kelas terhadap kekeliruan-kekeliruan yang muncul di dalam kelas, diantaranya; 1) Guru PPL kurang mampu mengatasi keributan yang ada di dalam kelas, 2) Guru PPL kurang mampu mengurangi reaksi negatif siswa terhadap kelompok lain, seperti merendahkan kelompok yang berkemampuan rendah, 3) Guru PPL kurang mampu mencegah/mengatasi siswa yang dengan sengaja mendorong prilaku temannya untuk tidak mengikuti aturan, 4) Guru PPL kurang mampu meleraikan siswa yang bermusuhan di dalam kelas.
title: Determinants of service quality in bureaucracy
title: Parkinson’s theory at work
titleType: Subtitle
Creators: name: Jochimsen, Beate
Publisher: name: Freie Universität Berlin
Year: 2007
Subjects: subject: bureaucracy
subject: Parkinson’s law
subject: waiting time
subject: service quality
subject: queueing theory
subject: 300 Sozialwissenschaften::330 Wirtschaft

description: Parkinson’s law states that work expands to fill the time available for its completion and that the number of administrators in an office is bound to increase over time. An unique laboratory to test Parkinson’s ideas are vehicle registration offices in Germany. Using their data we found empirical support for Parkinson’s law: First, service quality is no better in offices that have more staff per case. Second, service quality is worse if the service procedure is disaggregated into multiple smaller sub-services. Third, the staff size is a convex function of the number of customers. These results are robust to specifications in various alternative models.
Gravitational wave polarizations with different propagation speeds
Creators: name: Schumacher, Kristen
name: Yunes, Nicolas
name: Yagi, Kent
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In some modified theories of gravity, gravitational waves can contain up to six different polarizations, which can travel at speeds different from that of light. Searches for these different polarizations in gravitational wave data are important because any detection would be clear evidence of new physics, while clear non-detections could constrain some modified theories. The first step toward searching the data for such gravitational wave content is the calculation of the amplitudes of these different polarizations. Here we present a model-independent method to obtain the different polarizations of gravitational waves directly from the metric perturbation in theories where these polarizations are allowed to travel at different speeds. We develop our calculations so that the same procedure works with either the metric perturbation itself or its trace-reversed form. Our results are in agreement with previous work in the limit that all polarization speeds are the speed of light. We demonstrate how our model-independent method can be used with two specific modified theories of gravity, suggesting its wide applicability to other theories that allow for different gravitational wave propagation speeds. We further extend the parametrized post-Einsteinian formalism to apply to such theories that travel with different speeds. Finally, we discuss how the different speeds of different polarizations may affect null stream tests of general relativity with gravitational wave observations by multiple interferometers. Differences in propagation speeds may make null streams ineffective or lead to the detection of what seem to be isolated scalar or vector modes.
description: 13 pages; replaced with accepted version
Who is the Real Hero? Measuring Developer Contribution via Multi-dimensional Data Integration
Creators: name: Sun, Yuqiang
name: Xu, Zhengzi
name: Liu, Chengwei
name: Zhang, Yiran
name: Liu, Yang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Proper incentives are important for motivating developers in open-source communities, which is crucial for maintaining the development of open-source software healthy. To provide such incentives, an accurate and objective developer contribution measurement method is needed. However, existing methods rely heavily on manual peer review, lacking objectivity and transparency. The metrics of some automated works about effort estimation use only syntax-level or even text-level information, such as changed lines of code, which lack robustness. Furthermore, some works about identifying core developers provide only a qualitative understanding without a quantitative score or have some project-specific parameters, which makes them not practical in real-world projects. To this end, we propose CValue, a multidimensional information fusion-based approach to measure developer contributions. CValue extracts both syntax and semantic information from the source code changes in four dimensions: modification amount, understandability, inter-function and intra-function impact of modification. It fuses the information to produce the contribution score for each of the commits in the projects. Experimental results show that CValue outperforms other approaches by 19.59% on 10 real-world projects with manually labeled ground truth. We validated and proved that the performance of CValue, which takes 83.39 seconds per commit, is acceptable to be applied in real-world projects. Furthermore, we performed a large-scale experiment on 174 projects and detected 2,282 developers having inflated commits. Of these, 2,050 developers did not make any syntax contribution; and 103 were identified as bots.
Topological phases in gated bilayer graphene: Effects of Rashba spin-orbit coupling and exchange field
Creators: name: Qiao, Zhenhua
name: Li, Xiao
name: Tse, Wang-Kong
name: Jiang, Hua
name: Yao, Yugui
name: Niu, Qian
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a systematic study on the influence of Rashba spin-orbit coupling, interlayer potential difference and exchange field on the topological properties of bilayer graphene. In the presence of only Rashba spin-orbit coupling and interlayer potential difference, the band gap opening due to broken out-of-plane inversion symmetry offers new possibilities of realizing tunable topological phase transitions by varying an external gate voltage. We find a two-dimensional $Z_2$ topological insulator phase and a quantum valley Hall phase in $AB$-stacked bilayer graphene and obtain their effective low-energy Hamiltonians near the Dirac points. For $AA$ stacking, we do not find any topological insulator phase in the presence of large Rashba spin-orbit coupling. When the exchange field is also turned on, the bilayer system exhibits a rich variety of topological phases including a quantum anomalous Hall phase, and we obtain the phase diagram as a function of the Rashba spin-orbit coupling, interlayer potential difference, and exchange field.
description: 15 pages, 17figures, and 1 table
Additional file 1 of Associations of combined physical activity and body mass index groups with colorectal cancer survival outcomes
Creators: name: Himbert, Caroline
name: Ose, Jennifer
name: Gigic, Biljana
name: Viskochil, Richard
name: Santuci, Kelly
name: Lin, Tengda
name: Ashworth, Anjelica
name: Cohan, Jessica N.
name: Scaife, Courtney L.
name: Jedrzkiewicz, Jolanta
name: Damerell, Victoria
name: Atkins, Katelyn M.
name: Gong, Jun
name: Mutch, Matthew G.
name: Bernadt, Corey
name: Felder, Seth
name: Sanchez, Julian
name: Cohen, Stacey A.
name: Krane, Mukta K.
name: Hinkle, Nathan
name: Wood, Elizabeth
name: Peoples, Anita R.
name: Figueiredo, Jane C.
name: Toriola, Adetunji T.
name: Siegel, Erin M.
name: Li, Christopher I.
name: Shibata, David
name: Boucher, Kenneth
name: Round, June L.
name: Ulrich, Alexis B.
name: Schneider, Martin
name: Huang, Lyen C.
name: Hardikar, Sheetal
name: Ulrich, Cornelia M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: Additional file 1: Supplementary Table S1. Cox proportional hazard models of physical activity quartiles with overall and disease-free survival in colorectal cancer patients. Supplementary Table S2. Cox proportional hazard models of combined physical activity (8.75 MET hrs/wk threshold) and BMI groups with overall and disease-free survival in colorectal cancer patients. Supplementary Table S3. Baseline study population characteristics by completed and missing physical activity data [n (%) if not otherwise stated]. Supplementary Figure S1. Individual and combined physical activity and BMI groups.
Wissensmanagement und unternehmensinterner Wissenstransfer
Creators: name: Meier, Matthias
name: Weller, Ingo
Publisher: name: Freie Universität Berlin
Year: 2010
Subjects: subject: Wissensmanagement
subject: Wissenstransfer
subject: Mitarbeiterbefragung
subject: Organizational Knowledge Creation Theory
subject: 600 Technik, Medizin, angewandte Wissenschaften::650 Management, Öffentlichkeitsarbeit

description: In der Wissensmanagementforschung wird dem Wissenstransferprozess besondere Aufmerksamkeit geschenkt: Wissenstransfer sichert die Lernfähigkeit und das Innovationspotential und trägt damit zur Wettbewerbs- und Überlebensfähigkeit von Organisationen bei. Obwohl der Wissenstransfer von den Mitarbeitern in Organisationen getragen und geleistet wird, findet ein Großteil der Forschung auf der Organisationsebene statt. An diesem Kritikpunkt setzen wir an. Im theoretischen Teil des Aufsatzes werfen wir vier Forschungsfragen auf, die wir anschließend mit einem Individualdatensatz aus einer Mitarbeiterbefragung aufgreifen. Dabei identifizieren und schätzen wir individuelle Wahrnehmungsmuster von Wissensmanagement und beziehen diese auf zwei in der Literatur viel diskutierte Wissenstransferprozesse: Sozialisation und Kombination. Abschließend wird der (forschungs)praktische Nutzen der Ergebnisse diskutiert.
Inverse backscattering for the Schrödinger equation in 2D
Creators: name: Reyes, Juan Manuel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study the inverse backscattering problem for the Schrödinger equation in two dimensions. We prove that, for a non-smooth potential in 2D the main singularities up to 1/2 of the derivative of the potential are contained in the Born approximation (Diffraction Tomography approximation) constructed from the backscattering data. We measure singularities in the scale of Hilbertian Sobolev spaces.
Nesoscaptor uchidai Abe, Shiraishi and Arai 1991
Creators: name: Hutterer, Rainer
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Insectivora
Talpidae
Nesoscaptor
Nesoscaptor uchidai

description: Nesoscaptor uchidai Abe, Shiraishi and Arai, 1991. J. Mammal. Soc. Japan, 15:53. TYPE LOCALITY: Japan, Ryukyu Isis, Senkaku Isis, west coast of Uotsuri-jima. DISTRIBUTION: Known only from the type locality.
description: Published as part of Rainer Hutterer, 1993, Order Insectivora, pp. 69-130 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 126, DOI: 10.5281/zenodo.7353085