cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Self-improving Algorithms for Coordinate-Wise Maxima and Convex Hulls
Creators: name: Clarkson, Kenneth L.
name: Mulzer, Wolfgang
name: Seshadhri, C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computational Geometry (cs.CG)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: Finding the coordinate-wise maxima and the convex hull of a planar point set are probably the most classic problems in computational geometry. We consider these problems in the self-improving setting. Here, we have $n$ distributions $\mathcal{D}_1, \ldots, \mathcal{D}_n$ of planar points. An input point set $(p_1, \ldots, p_n)$ is generated by taking an independent sample $p_i$ from each $\mathcal{D}_i$, so the input is distributed according to the product $\mathcal{D} = \prod_i \mathcal{D}_i$. A self-improving algorithm repeatedly gets inputs from the distribution $\mathcal{D}$ (which is a priori unknown), and it tries to optimize its running time for $\mathcal{D}$. The algorithm uses the first few inputs to learn salient features of the distribution $\mathcal{D}$, before it becomes fine-tuned to $\mathcal{D}$. Let $\text{OPTMAX}_\mathcal{D}$ (resp. $\text{OPTCH}_\mathcal{D}$) be the expected depth of an \emph{optimal} linear comparison tree computing the maxima (resp. convex hull) for $\mathcal{D}$. Our maxima algorithm eventually achieves expected running time $O(\text{OPTMAX}_\mathcal{D} + n)$. Furthermore, we give a self-improving algorithm for convex hulls with expected running time $O(\text{OPTCH}_\mathcal{D} + n\log\log n)$. Our results require new tools for understanding linear comparison trees. In particular, we convert a general linear comparison tree to a restricted version that can then be related to the running time of our algorithms. Another interesting feature is an interleaved search procedure to determine the likeliest point to be extremal with minimal computation. This allows our algorithms to be competitive with the optimal algorithm for $\mathcal{D}$.
description: 39 pages, 17 figures; thoroughly revised presentation; preliminary versions appeared at SODA 2010 and SoCG 2012
Frühbronzezeitliche Grabhügel in der Gemarkung Bonstorf, Kreis Celle
Creators: name: Deichmüller, Jürgen
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 31 (1962): Nachrichten aus Niedersachsens Urgeschichte
Ein Hügelgräberfeld bei Goldbeck, Kreis Stade
Creators: name: Deichmüller, Jürgen
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 31 (1962): Nachrichten aus Niedersachsens Urgeschichte
P2I Questionnaire Version S
Creators: name: Zollitsch, Linda
name: Vilter, Nick
name: Niesel, Dennis
name: Wilder, Nicolaus
Publisher: name: Zenodo
Year: 2020
Subjects: responsible conduct of research
questionnaire
research integrity
undergraduates

description: The P2I questionnaire S is designed for students without an academic degree (undergraduates)
Long time asymptotics of the totally asymmetric simple exclusion process
Creators: name: Motegi, Kohei
name: Sakai, Kazumitsu
name: Sato, Jun
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the long time asymptotics of the relaxation dynamics of the totally asymmetric simple exclusion process on a ring. Evaluating the asymptotic amplitudes of the local currents by the algebraic Bethe ansatz method, we find the relaxation times starting from the step and alternating initial conditions are governed by different eigenvalues of the Markov matrix. In both cases, the scaling exponents of the leading asymptotic amplitudes with respect to the total number of sites are found to be -1. We also study the asymptotics of correlation functions such as the emptiness formation probability.
description: 21 pages, 5 figures, revised version
Notgrabung in einem wendischen Reihengräberfriedhof bei Növenthien, Kreis Uelzen
Creators: name: Voss, K. L.
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 31 (1962): Nachrichten aus Niedersachsens Urgeschichte
Spontaneous avalanche ionization of a strongly blockaded Rydberg gas
Creators: name: Robert-de-Saint-Vincent, M.
name: Hofmann, C. S.
name: Schempp, H.
name: Günter, G.
name: Whitlock, S.
name: Weidemüller, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We report the sudden and spontaneous evolution of an initially correlated gas of repulsively interacting Rydberg atoms to an ultracold plasma. Under continuous laser coupling we create a Rydberg ensemble in the strong blockade regime, which at longer times undergoes an ionization avalanche. By combining optical imaging and ion detection, we access the full information on the dynamical evolution of the system, including the rapid increase in the number of ions and a sudden depletion of the Rydberg and ground state densities. Rydberg-Rydberg interactions are observed to strongly affect the dynamics of plasma formation. Using a coupled rate-equation model to describe our data, we extract the average energy of electrons trapped in the plasma, and an effective cross-section for ionizing collisions between Rydberg atoms and atoms in low-lying states. Our results suggest that the initial correlations of the Rydberg ensemble should persist through the avalanche. This would provide the means to overcome disorder-induced-heating, and offer a route to enter new strongly-coupled regimes.
description: 5 pages plus supplemental material
Pfalz Werla bei Werlaburgdorf, Schladen, Kreis Goslar
Creators: name: Stelzer, Gudrun
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 31 (1962): Nachrichten aus Niedersachsens Urgeschichte
title: NN-TSV, NCEP neural network training and validation system
title: Brief description of NN background and training software
titleType: Subtitle
Creators: name: Krasnopolʹsky, V. M.
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Weather Service, National Centers for Environmental Prediction
Year: 2014
Subjects: subject: Numerical weather forecasting--United States
subject: Weather forecasting--Computer simulation--Training

description: This Note describes neural network (NN) training and validation system (TVS) or NN-TVS developed at NCEP (EMC). Section 1 of this Note is an introductory section. Section 2 presents a brief NN tutorial containing limited discussion of basic ideas of NN technique and NN features implemented in the NN-TVS system. Some of the NN features discussed in Section 2 have not yet been implemented in the NN-TVS system and are expected to be implemented in following versions of the system. Section 3 contains a description of the NN-TVS structure and functional relationships between blocks. It also describes scripts necessary for running the system on NCEP computers. Section 4 contains a description of FORTRAN module neural.f90 that can be used to run the trained NN in applications. Section 5 contains appendixes with information about the data files used in NN-TVS (Appendix 1); also the functions and subroutines constituting the NN-TVS system are listed in Appendix 2. The text of the FORTRAN module neural.f90 is presented in Appendix 3. Appendix 4 explains the evaluation statistics that are used in the NN-TVS evaluations of NN training results.
Nonlinear Gravitational Recoil from the Mergers of Precessing Black-Hole Binaries
Creators: name: Lousto, Carlos O.
name: Zlochower, Yosef
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present results from an extensive study of 88 precessing, equal-mass black-hole binaries with large spins (83 with intrinsic spins of 0.8 and 5 with intrinsic spins of 0.9)and use these data to model new nonlinear contributions to the gravitational recoil imparted to the merged black hole. We find a new effect, the cross kick, that enhances the recoil for partially aligned binaries beyond the hangup kick effect. This has the consequence of increasing the probabilities of recoils larger than 2000 km/s by nearly a factor two, and, consequently, of black holes getting ejected from galaxies, as well as the observation of large differential redshifts/blueshifts in the cores of recently merged galaxies.
description: Fix sign error in table 1. Repeated terms dropped in table 5
Eine frühmittelalterliche Siedlungsgrube bei Döhlen, Gern. Großenkneten
Creators: name: Zoller, Detlef
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 31 (1962): Nachrichten aus Niedersachsens Urgeschichte
Fostering Institutional Accountability in Higher Education: Examining Sexual Misconduct at the University of Chicago
Creators: name: McNeilly, Sarah
Publisher: name: University of Chicago
Year: 2018
Subjects: subject: Title IX
subject: University of Chicago
subject: sexual misconduct

description: Although Title IX and Clery Act legislation specifically aims to prevent sexual violence on college campuses, the problem remains persistent and pervasive. According to RAINN, “among undergraduate students, 23.1% of females and 8.4% of males experience sexual assault through physical force, violence or incapacitation.” My research examines institutional accountability for sexual misconduct, conducting a case study into one representative bureaucracy: the University of Chicago. I evaluate the University’s current policy and implementation ability, and find that organizational decoupling is a barrier to accountability for sexual misconduct. I then recommend structural, marketing, and area-specific solutions that ameliorate institutional accountability such that sexual violence against undergraduates may be reduced in the future.
title: Pinning of the Fermi Level in CuFeO₂ by Polaron Formation Limiting the Photovoltage for Photochemical Water Splitting
Creators: name: Hermans, Yannick
name: Klein, Andreas
name: Sarker, Hori Pada
name: Huda, Mohammad N.
name: Junge, Henrik
name: Toupance, Thierry
name: Jaegermann, Wolfram
Publisher: name: Wiley
Year: 2021

description: CuFeO₂ is recognized as a potential photocathode for photo(electro)chemical water splitting. However, photocurrents with CuFeO₂-based systems are rather low so far. In order to optimize charge carrier separation and water reduction kinetics, defined CuFeO₂/Pt, CuFeO₂/Ag, and CuFeO₂/NiOx(OH)y heterostructures are made in this work through a photodeposition procedure based on a 2H CuFeO₂ hexagonal nanoplatelet shaped powder. However, water splitting performance tests in a closed batch photoreactor show that these heterostructured powders exhibit limited water reduction efficiencies. To test whether Fermi level pinning intrinsically limits the water reduction capacity of CuFeO₂, the Fermi level tunability in CuFeO₂ is evaluated by creating CuFeO₂/ITO and CuFeO₂/H₂O interfaces and analyzing the electronic and chemical properties of the interfaces through photoelectron spectroscopy. The results indicate that Fermi level pinning at the Fe³⁺/Fe²⁺ electron polaron formation level may intrinsically prohibit CuFeO₂ from acquiring enough photovoltage to reach the water reduction potential. This result is complemented with density functional theory calculations as well.
Vector Boson Fusion Processes as a Probe of Supersymmetric Electroweak Sectors at the LHC
Creators: name: Dutta, Bhaskar
name: Gurrola, Alfredo
name: Johns, Will
name: Kamon, Teruki
name: Sheldon, Paul
name: Sinha, Kuver
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Vector boson fusion (VBF) processes offer a promising avenue to study the non-colored sectors of supersymmetric extensions of the Standard Model at the LHC. A feasibility study for searching for the chargino/neutralino system in the $R-$parity conserving Minimal Supersymmetric Standard Model is presented. The high $E_T$ forward jets in opposite hemispheres are utilized to trigger VBF events, so that the production of the lightest chargino and the second lightest neutralino can be probed without a bias by experimental triggers. Kinematic requirements are developed to search for signals of these supersymmetric states above Standard Model backgrounds in both $τ$ and light lepton ($e$ and $μ$) final states at $\sqrt{s} = 8$ TeV.
description: 7 pages, 8 figures, v2: VBF cuts clarified, other minor clarifications added, version to appear in PRD
Fortführung der Untersuchung des altfriesischen Gräberfeldes von Zetel
Creators: name: Marschalleck, Karl-Heinz
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 31 (1962): Nachrichten aus Niedersachsens Urgeschichte
Gallwitz, Hans: Religion und Magie der Menschen in der Altsteinzeit
Creators: name: Narr, Karl J.
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Gallwitz, Hans: Religion und Magie der Menschen in der Altsteinzeit (Erkenntnis und Glaube. Schriften der Evangelischen Forschungsakademie Ilsenburg, Band 18). Berlin-Friedenau 1960: Wiehern Verlag. 31 Seit, in 8 0 m. 29. Abb. auf Taf.
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 31 (1962): Nachrichten aus Niedersachsens Urgeschichte
Apanteles javensis Rohwer 1919
Creators: name: Gupta, Ankita
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Apanteles
Apanteles javensis

description: Apanteles javensis Rohwer, 1919
 Apanteles javensis Rohwer is reported for the first time from India parasitizing larvae of Pelopidas mathias (Fabricius). The other hosts from macrolepidoptera are Parnara conjuncta Herrich-Schaffer, Mycalesis perseus (Fabricius) and Polytremis pellucida (Murray) (Yu, 2012).
 Brief diagnosis. Female. Black; antennae, tegulae, hind legs largely, mid legs except apex of femora, front legs at base of femora, basal ventrites, lateral membranous margins of first gastral tergite, deep red; rest portion of legs red testaceous. Basal part of hind tibiae lighter than apical part. Stigma pallid with margins brown. Propodeum with areola well marked in the apical half; areola shining. Ovipositor sheath in length equal to basal joint of the hind tarsus. First tergite of metasoma narrow apically and broad basally; punctuate along the marginal third in apical half (except at apex); second tergite completely smooth and shining.
 Discussion. Apanteles javensis can be easily confused with A. baoris Wilkinson which is also a larval parasitoid of P. mathias and has been reported earlier from Indian subcontinent (Orissa and southern parts of India), Malaysia and Ceylon. It can be separated from the latter with the ovipositor sheaths rather longer than the hind tibiae in the case of A. baoris.
 Distribution. India: Kerala (New record), Aakulam lake, Thiruvananthapuram city suburbs Kerala.
 Material examined. 10 females mounted on card, 6 females wet preserved in 70% alcohol, INDIA, Kerala, Thiruvananthapuram, November 2010, emerged from parasitized larvae Pelopidas mathias (Fabricius) (Lepidoptera: Hesperiidae) on host plant Brachiaria mutica (Forssk.) Stapf (Poaceae), leg. Kalesh, S. All specimens deposited in National Bureau of Agriculturally Important Insects (NBAII), Bangalore, India. Code. NBAII /Bra/ Mic/Apan/jav/1110.
 Host record. Pelopidas mathias (Fabricius) larva (Lepidoptera: Hesperiidae) on host plant Brachiaria mutica (Forssk.) Stapf (Poaceae). Brachiaria mutica is a gregarious tall grass growing at the edges of water bodies and in marshes.
description: Published as part of Gupta, Ankita, 2012, Reared parasitic wasps attacking hesperiids from Western Ghats (Kerala, India) with description of a new species of Dolichogenidea (Hymenoptera: Braconidae) as a larval parasitoid of Thoressa evershedi (Evans) (Lepidoptera: Hesperiidae), pp. 29-43 in Zootaxa 3413 on pages 35-36, DOI: 10.5281/zenodo.209774
Herrmann, Joachim: Die vor- und frühgeschichtlichen Burgwälle Groß-Berlins und des Bezirks Potsdam
Creators: name: Nowothnig, Walter
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Herrmann, Joachim: Die vor- und frühgeschichtlichen Burgwälle Groß-Berlins und des Bezirks Potsdam. Handbuch der vor- und frühgeschichtlichen Wall- und Wehranlagen, Teil 2, herausgegeben von Wilhelm Unverzagt. Deutsche Akademie der Wissenschaften zu Berlin, Schriften der Sektion für Vor- und Frühgeschichte, Band 9, 1960, 224 Seit., 40 Abb. im Text, 23 Taf., 4 Krt. und eine vierfarbige Siedlungskarte
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 31 (1962): Nachrichten aus Niedersachsens Urgeschichte
Generation of two-dimensional water waves by moving bottom disturbances
Creators: name: Nersisyan, Hayk
name: Dutykh, Denys
name: Zuazua, Enrique
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Physics (physics.class-ph)
subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: Optimization and Control (math.OC)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We investigate the potential and limitations of the wave generation by disturbances moving at the bottom. More precisely, we assume that the wavemaker is composed of an underwater object of a given shape which can be displaced according to a prescribed trajectory. We address the practical question of computing the wavemaker shape and trajectory generating a wave with prescribed characteristics. For the sake of simplicity we model the hydrodynamics by a generalized forced Benjamin-Bona-Mahony (BBM) equation. This practical problem is reformulated as a constrained nonlinear optimization problem. Additional constraints are imposed in order to fulfill various practical design requirements. Finally, we present some numerical results in order to demonstrate the feasibility and performance of the proposed methodology.
description: 21 pages, 7 figures, 1 table, 69 references. Other author's papers can be downloaded at http://www.denys-dutykh.com/
Müller-Karpe, Hermann: Die spätneolithische Siedlung von Polling
Creators: name: Niquet, Franz
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Müller-Karpe, Hermann: Die spätneolithische Siedlung von Polling. Kallmünz (Opf.) 1961. Materialhefte zur bayerischen Vorgeschichte. Hrsg, von Klaus Schwarz, Heft 17, 45 Seit., 34 Tfn., 40
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 31 (1962): Nachrichten aus Niedersachsens Urgeschichte
Magnetic orders and spin-flop transitions in the cobalt doped multiferroic $\rm Mn_{1-x}Co_{x}WO_4$
Creators: name: Ye, Feng
name: Chi, Songxue
name: Fernandez-Baca, Jaime A.
name: Cao, Huibo
name: Liang, K. -C.
name: Wang, Yaqi
name: Lorenz, Bernd
name: Chu, C. W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a comprehensive single crystal neutron diffraction investigation of the $\rm Mn_{1-x}Co_{x}WO_4$ with $0.02\leq x \leq0.30$. At lower concentration $x \leq 0.05$, the system is quickly driven into the multiferroic phase with spin structure forming an elliptical spiral order similar to the parent compound. The reduction of electric polarization is ascribed to the tilting of the spiral plane. For $x\sim 0.075$, the magnetic structure undergoes a spin flop transition that is characterized by a sudden rotation of the spin helix envelope into the $ac$ plane. This spin structure persists for concentration up to $x=0.15$, where additional competing magnetic orders appear at low temperature. For $0.17 \leq x \leq 0.30$, the system experiences another spin flop transition and recovers the low-$x$ spiral spin configuration. A simple commensurate spin structure with $\vec{q}=(0.5,0,0)$ is found to coexist with the incommensurate spiral order. The complex evolution of magnetic structure in Co doped $\rm MnWO_4$ contrasts sharply with other transition metal ion doped $\rm Mn_{1-x}A_xWO_4$ (A=Zn, Mg, Fe) where the chemical substitutions stabilize only one type of magnetic structure. The rich phase diagram of $\rm Mn_{1-x}Co_{x}WO_4 $ results from the interplay between magnetic frustration and spin anisotropy of the Co ions.
description: 13 pages, 17 figures, Revised version as that to appear in PRB
A new framework for data on public services. Early childhood education and care (ECEC) and compulsory education
Creators: name: Nieuwenhuis, Rense
name: Goedemé, Tim
name: Dalén, Pär
name: Delanghe, Heleen
name: Doctrinal, Laure
name: Nelson, Kenneth
name: Sirén, Sebastian
name: Penne, Tess
Publisher: name: Zenodo
Year: 2021

description: The purpose of this deliverable is to report on the development of a new framework for collecting good quality institutional comparative data on public services, using Early Childhood Education and Care (ECEC), and primary and secondary education as pilot areas. Whereas comparative welfare state research has to an important extent focused on the income redistribution function of the welfare state (i.e. taxes and cash benefits), the public services dimension remains under-examined. This is true both in the area of Early Childhood Education and Care, as well as in the area of the affordability of compulsory (primary + secondary) education. As the literature reviews in the respective areas have demonstrated, both areas have been studied extensively, but indicators that are suitable for country-comparative research are available only to a limited extent. For both policy areas, new data were collected through a network of national policy experts. Taking together the policy indicators collected and the evidence reported regarding ECEC and compulsory education, this deliverable demonstrates the importance of a sustainable data infrastructure to collect policy indicators on these policy areas specifically, and public services in general. Institutional indicators that seek to codify the social rights as they are encoded in policies (and legislation) are important to understand the living conditions of Europeans, and complementary to existing data that are often survey-based. Expert networks are an effective method to collect such data.
Artificial Seismic Shadow Zone by Acoustic Metamaterials
Creators: name: Kim, Sang-Hoon
name: Das, Mukunda P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We developed a new method of earthquakeproof engineering to create an artificial seismic shadow zone using acoustic metamaterials. By designing huge empty boxes with a few side-holes corresponding to the resonance frequencies of seismic waves and burying them around the buildings that we want to protect, the velocity of the seismic wave becomes imaginary. The meta-barrier composed of many meta-boxes attenuates the seismic waves, which reduces the amplitude of the wave exponentially by dissipating the seismic energy. This is a mechanical method of converting the seismic energy into sound and heat. We estimated the sound level generated from a seismic wave. This method of area protection differs from the point protection of conventional seismic design, including the traditional cloaking method. The meta-barrier creates a seismic shadow zone, protecting all the buildings within the zone. The seismic shadow zone is tested by computer simulation and compared with a normal barrier.
description: 4 pages, 3 figures
Smolla, Günther, Neolithische Kulturerscheinungen
Creators: name: Niquet, Franz
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Smolla, Günther, Neolithische Kulturerscheinungen. Studien zur Frage ihrer Herausbildung. Antiquitas, Reihe 2, Band 3, Abhandlungen aus dem Gebiete der Vor- und Frühgeschichte. Herausgegeben von Andreas Alföldi und Kurt Tackenberg. Rudolf Habelt Verlag, Bonn 1960, 189 Seit., ohne Abb., 80
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 31 (1962): Nachrichten aus Niedersachsens Urgeschichte
Wegewitz, Willi: Die Urnenfriedhöfe von Dohren und Daensen im Kreise Harburg
Creators: name: Niquet, Franz
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Wegewitz, Willi: Die Urnenfriedhöfe von Dohren und Daensen im Kreise Harburg. Die Urnenfriedhöfe in Niedersachsen. Im Auftrage d. hist. Vereins f. Nds. hrsg. von C. Schuchhardt und fortgesetzt von W. D. Asmus. Band 5. Hildesheim 1961. 61 Seit., 47 Tfn. (18 Zeichnungen, 24 Fotos), 40
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 31 (1962): Nachrichten aus Niedersachsens Urgeschichte
Constraining the substructure of dark matter haloes with galaxy-galaxy lensing
Creators: name: Li, Ran
name: Mo, Houjun
name: Fan, Zuhui
name: Yang, Xiaohu
name: Bosch, Frank C. van den
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: With galaxy groups constructed from the Sloan Digital Sky Survey (SDSS), we analyze the expected galaxy-galaxy lensing signals around satellite galaxies residing in different host haloes and located at different halo-centric distances. We use Markov Chain Monte Carlo (MCMC) method to explore the potential constraints on the mass and density profile of subhaloes associated with satellite galaxies from SDSS-like surveys and surveys similar to the Large Synoptic Survey Telescope (LSST). Our results show that for SDSS-like surveys, we can only set a loose constraint on the mean mass of subhaloes. With LSST-like surveys, however, both the mean mass and the density profile of subhaloes can be well constrained.
description: 19 pages, 14 figures, accepted by MNRAS
Sustainable soil management measures: a synthesis of stakeholder recommendations
Creators: name: Strauss, Veronika
name: Paul, Carsten
name: Dönmez, Cenk
name: Löbmann, Michael
name: Helming, Katharina
Publisher: name: Berlin ; Heidelberg : Springer
Year: 2023
Subjects: subject: Agriculture in transition
subject: Diversification in agriculture
subject: Soil functions
subject: Soil health
subject: Stakeholder recommendations
subject: Sustainable soil management
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin
subject: Dewey Decimal Classification::600 | Technik::640 | Hauswirtschaft und Familienleben

description: Soil degradation threatens agricultural production and soil multifunctionality. Efforts for private and public governance are increasingly emerging to leverage sustainable soil management. They require consensus across science, policy, and practice about what sustainable soil management entails. Such agreement does not yet exist to a sufficient extent in agronomic terms; what is lacking is a concise list of soil management measures that enjoy broad support among all stakeholders, and evidence on the question what hampers their implementation by farmers. We therefore screened stakeholder documents from public governance institutions, nongovernmental organizations, the agricultural industry, and conventional and organic farmer associations for recommendations related to agricultural soil management in Germany. Out of 46 recommended measures in total, we compiled a shortlist of the seven most consensual ones: (1) structural landscape elements, (2) organic fertilization, (3) diversified crop rotation, (4) permanent soil cover, (5) conservation tillage, (6) reduced soil loads, and (7) optimized timing of wheeling. Together, these measures support all agricultural soil functions, and address all major soil threats except soil contamination. Implementation barriers were identified with the aid of an online survey among farmers (n = 78). Results showed that a vast majority of farmers (> 80%) approved of all measures. Barriers were mostly considered to be economic and in some cases technological, while missing knowledge or other factors were less relevant. Barriers were stronger for those measures that cannot be implemented in isolation, but require a systemic diversification of the production system. This is especially the case for measures that are simultaneously beneficial to many soil functions (measures 2, 3, and 4). Results confirm the need for a diversification of the agricultural system in order to meet challenges of food security and climate change. The shortlist presents the first integrative compilation of sustainable soil management measures supporting the design of effective public or private governance.
Systematic genetic analysis of pediatric patients with autoinflammatory diseases
Creators: name: Poker, Yvonne
name: Hardenberg, Sandra Von
name: Hofmann, Winfried
name: Tang, Ming
name: Baumann, Ulrich
name: Schwerk, Nicolaus
name: Wetzke, Martin
name: Lindenthal, Viola
name: Auber, Bernd
name: Schlegelberger, Brigitte
name: Ott, Hagen
name: Von Bismarck, Philipp
name: Viemann, Dorothee
name: Dressler, Frank
name: Klemann, Christian
name: Bergmann, Anke Katharina
Publisher: name: Lausanne : Frontiers Media
Year: 2023
Subjects: subject: autoinflammatory diseases
subject: FMF
subject: genetic diagnostics
subject: inborn errors of immunity (IEI)
subject: whole exome sequencing (WES)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Monogenic autoinflammatory diseases (AID) encompass a growing group of inborn errors of the innate immune system causing unprovoked or exaggerated systemic inflammation. Diagnosis of monogenic AID requires an accurate description of the patients’ phenotype, and the identification of highly penetrant genetic variants in single genes is pivotal. We performed whole exome sequencing (WES) of 125 pediatric patients with suspected monogenic AID in a routine genetic diagnostic setting. Datasets were analyzed in a step-wise approach to identify the most feasible diagnostic strategy. First, we analyzed a virtual gene panel including 13 genes associated with known AID and, if no genetic diagnosis was established, we then analyzed a virtual panel including 542 genes published by the International Union of Immunological Societies associated including all known inborn error of immunity (IEI). Subsequently, WES data was analyzed without pre-filtering for known AID/IEI genes. Analyzing 13 genes yielded a definite diagnosis in 16.0% (n = 20). The diagnostic yield was increased by analyzing 542 genes to 20.8% (n = 26). Importantly, expanding the analysis to WES data did not increase the diagnostic yield in our cohort, neither in single WES analysis, nor in trio-WES analysis. The study highlights that the cost- and time-saving analysis of virtual gene panels is sufficient to rapidly confirm the differential diagnosis in pediatric patients with AID. WES data or trio-WES data analysis as a first-tier diagnostic analysis in patients with suspected monogenic AID is of limited benefit.
Self-service business intelligence and analytics application scenarios: A taxonomy for differentiation
Creators: name: Passlick, Jens
name: Grützner, Lukas
name: Schulz, Michael
name: Breitner, Michael H.
Publisher: name: New York, NY [u.a.] ; Heidelberg ; Berlin : Springer
Year: 2023
Subjects: subject: Business intelligence
subject: Self-service
subject: Software archetypes
subject: SSBIA application scenarios
subject: Taxonomy
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: Self-service business intelligence and analytics (SSBIA) empowers non-IT users to create reports and analyses independently. SSBIA methods and processes are discussed in the context of an increasing number of application scenarios. However, previous research on SSBIA has made distinctions among these scenarios only to a limited extent. These scenarios include a wide variety of activities ranging from simple data retrieval to the application of complex algorithms and methods of analysis. The question of which dimensions are suitable for differentiating SSBIA application scenarios remains unanswered. In this article, we develop a taxonomy to distinguish among SSBIA applications more effectively by analyzing the relevant scientific literature and current SSBIA tools as well as by conducting a case study in a company. Both researchers and practitioners can use this taxonomy to describe and analyze SSBIA scenarios in further detail. In this way, the opportunities and challenges associated with SSBIA application can be identified more clearly. In addition, we conduct a cluster analysis based on the SSBIA tools thus analyzed. We identify three archetypes that describe typical SSBIA tools. These archetypes identify the application scenarios that are addressed most frequently by SSBIA tool providers. We conclude by highlighting the limitations of this research and suggesting an agenda for future research.
Noncolliding Brownian Motion with Drift and Time-Dependent Stieltjes-Wigert Determinantal Point Process
Creators: name: Takahashi, Yuta
name: Katori, Makoto
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Probability (math.PR)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Using the determinantal formula of Biane, Bougerol, and O'Connell, we give multitime joint probability densities to the noncolliding Brownian motion with drift, where the number of particles is finite. We study a special case such that the initial positions of particles are equidistant with a period $a$ and the values of drift coefficients are well-ordered with a scale $σ$. We show that, at each time $t >0$, the single-time probability density of particle system is exactly transformed to the biorthogonal Stieltjes-Wigert matrix model in the Chern-Simons theory introduced by Dolivet and Tierz. Here one-parameter extensions ($θ$-extensions) of the Stieltjes-Wigert polynomials, which are themselves $q$-extensions of the Hermite polynomials, play an essential role. The two parameters $a$ and $σ$ of the process combined with time $t$ are mapped to the parameters $q$ and $θ$ of the biorthogonal polynomials. By the transformation of normalization factor of our probability density, the partition function of the Chern-Simons matrix model is readily obtained. We study the determinantal structure of the matrix model and prove that, at each time $t >0$, the present noncolliding Brownian motion with drift is a determinantal point process, in the sense that any correlation function is given by a determinant governed by a single integral kernel called the correlation kernel. Using the obtained correlation kernel, we study time evolution of the noncolliding Brownian motion with drift.
description: v2: REVTeX4, 34 pages, 4 figures, minor corrections made for publication in J. Math. Phys
Gleich und ungleich zugleich. Arm und arm sind nicht dasselbe
Creators: name: Klein, Thomas
name: Stauder, Johannes
Publisher: name: Ruperto Carola
Year: 2019

description: Dass Armut in Deutschland nicht mit Armut in einem Entwicklungsland gleichzusetzen ist, ist sicher jedem bewusst. Aber wie ist es zu erklären, dass die Armutsquote in wirtschaftlich schwächeren Ländern als Deutschland geringer sein kann als hierzulande – oder dass diese Quote in einem Land steigen kann, obwohl es niemandem schlechter geht? Die Ursachen hierfür liegen in unterschiedlichen Berechnungs- möglichkeiten der Armutsquote – vor allem in der Unterscheidung zwischen absoluter und ­ relativer Armut. Während der eine Begriff sich an der Versorgung mit lebensnotwendigen Gütern orientiert, informiert der andere darüber, wie gleich oder ungleich der Wohlstand in einer Gesellschaft verteilt ist.
description: Ruperto Carola, Nr. 14 (2019): Absolut & Relativ
Loop invariants: analysis, classification, and examples
Creators: name: Furia, Carlo A.
name: Meyer, Bertrand
name: Velder, Sergey
Publisher: name: arXiv
Year: 2012
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Software verification has emerged as a key concern for ensuring the continued progress of information technology. Full verification generally requires, as a crucial step, equipping each loop with a "loop invariant". Beyond their role in verification, loop invariants help program understanding by providing fundamental insights into the nature of algorithms. In practice, finding sound and useful invariants remains a challenge. Fortunately, many invariants seem intuitively to exhibit a common flavor. Understanding these fundamental invariant patterns could therefore provide help for understanding and verifying a large variety of programs. We performed a systematic identification, validation, and classification of loop invariants over a range of fundamental algorithms from diverse areas of computer science. This article analyzes the patterns, as uncovered in this study, governing how invariants are derived from postconditions; it proposes a taxonomy of invariants according to these patterns, and presents its application to the algorithms reviewed. The discussion also shows the need for high-level specifications based on "domain theory". It describes how the invariants and the corresponding algorithms have been mechanically verified using an automated program prover; the proof source files are available. The contributions also include suggestions for invariant inference and for model-based specification.
A study of the Higgs and confining phases in Euclidean SU(2) Yang-Mills theories in 3d by taking into account the Gribov horizon
Creators: name: Capri, M. A. L.
name: Dudal, D.
name: Gomez, A. J.
name: Guimaraes, M. S.
name: Justo, I. F.
name: Sorella, S. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study SU(2) three-dimensional Yang-Mills theories in presence of Higgs fields in the light of the Gribov phenomenon. By restricting the domain of integration in the functional integral to the first Gribov horizon, we are able to discuss a kind of transition between the Higgs and the confining phase in a semi-classical approximation. Both adjoint and fundamental representation for the Higgs field are considered, leading to a different phase structure.
description: 12 pages. Version accepted for publication in the EPJC
Shukla-Eliasson Attractive Force: Revisited
Creators: name: Akbari-Moghanjoughi, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: By investigation of the dielectric response of a Fermi-Dirac plasma in the linear limit and evaluation of the electrostatic potential around the positive stationary test charge, we find that the Shukla-Eliasson attractive force is present for the plasma density range expected in the interiors of large planets for a wide range of plasma atomic-number. This research which is based on the generalized electron Fermi-momentum further confirms the existence of the newly discovered Lennard-Jones-like attractive potential and its inevitable role in plasma crystallization in the cores of planets. Moreover, it is observed that the characteristics of the attractive potential is strongly sensitive to the variation of the plasma density and composition. Current research can also have applications in the study of strong laser-matter interactions and innertially confined plasmas.
Compressive Link Acquisition in Multiuser Communications
Creators: name: Li, Xiao
name: Rueetschi, Andrea
name: Scaglione, Anna
name: Eldar, Yonina C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: An important receiver operation is to detect the presence specific preamble signals with unknown delays in the presence of scattering, Doppler effects and carrier offsets. This task, referred to as "link acquisition", is typically a sequential search over the transmitted signal space. Recently, many authors have suggested applying sparse recovery algorithms in the context of similar estimation or detection problems. These works typically focus on the benefits of sparse recovery, but not generally on the cost brought by compressive sensing. Thus, our goal is to examine the trade-off in complexity and performance that is possible when using sparse recovery. To do so, we propose a sequential sparsity-aware compressive sampling (C-SA) acquisition scheme, where a compressive multi-channel sampling (CMS) front-end is followed by a sparsity regularized likelihood ratio test (SR-LRT) module. The proposed C-SA acquisition scheme borrows insights from the models studied in the context of sub-Nyquist sampling, where a minimal amount of samples is captured to reconstruct signals with Finite Rate of Innovation (FRI). In particular, we propose an A/D conversion front-end that maximizes a well-known probability divergence measure, the average Kullback-Leibler distance, of all the hypotheses of the SR-LRT performed on the samples. We compare the proposed acquisition scheme vis-à-vis conventional alternatives with relatively low computational cost, such as the Matched Filter (MF), in terms of performance and complexity.
description: to appear in IEEE Transactions on Signal Processing
A Symmetry-Based Method for Constructing Nonlocally Related PDE Systems
Creators: name: Bluman, George W.
name: Yang, Zhengzheng
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Nonlocally related partial differential equation (PDE) systems are useful in the analysis of a given PDE system. It is known that each local conservation law of a given PDE system systematically yields a nonlocally related system. In this paper, a new and complementary method for constructing nonlocally related systems is introduced. In particular, it is shown that each point symmetry of a given PDE system systematically yields a nonlocally related system. Examples include applications to nonlinear diffusion equations, nonlinear wave equations and nonlinear reaction-diffusion equations. As a consequence, previously unknown nonlocal symmetries are exhibited for two examples of nonlinear wave equations. Moreover, since the considered nonlinear reaction-diffusion equations have no local conservation laws, previous methods do not yield nonlocally related systems for such equations.
Trapped surfaces in a hadronic fluid
Creators: name: Bilic, Neven
name: Tolic, Dijana
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Pion propagation in a hadronic fluid with a non-homogeneous relativistic flow is studied in terms of the linear sigma model. The wave equation turns out to be equivalent to the equation of motion for a massless scalar field propagating in a curved spacetime geometry. The metric tensor depends locally on the soft pion dispersion relation and the four-velocity of the fluid. For a relativistic flow in curved spacetime the apparent and trapping horizons may be defined in the same way as in general relativity. An expression for the analog surface gravity is derived.
description: 24 pages, 6 figures, misprints corrected, a comment added in conclusions, accepted in Phys. Rev. D
Majorana fermions in s-wave noncentrosymmetric superconductor with Rashba and Dresselhaus (110) spin-orbit couplings
Creators: name: You, Jiabin
name: Oh, C. H.
name: Vedral, Vlatko
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The asymmetric spin-orbit (SO) interactions play a crucial role in realizing topological phases in noncentrosymmetric superconductor (NCS).We investigate the edge states and the vortex core states in s-wave NCS with Rashba and Dresselhaus (110) SO couplings by both numerical and analytical methods. In particular, we demonstrate that there exists a novel semimetal phase characterized by the flat Andreev bound states in the phase diagram of the s-wave Dresselhaus NCS which supports the emergence of Majorana fermion (MF). The flat dispersion implies a peak in the density of states which has a clear experimental signature in the tunneling conductance measurements and the MFs proposed here should be experimentally detectable.
title: Naturvergessenheit: Erinnerung an die verlorene Ganzheit des Menschen im 18. Jahrhundert
Creators: name: Diener, Leander
Publisher: name: Universität Erfurt
Year: 2023
Subjects: subject: 300

description: This paper follows the narrative of humanity's forgetfulness of nature (Naturvergessenheit) and its consequences. Max Horkheimer’s and Theodor W. Adorno’s Dialectic of the Enlightenment serves as a starting and end point for a reflection on historical constellations of body concepts, human societies, and nature. These body concepts hve been negotiated as nervous bodies since the 18th century and have repeatedly put a lost wholeness (Ganzheit) up for debate. Although no relief was found for the almost pathological desire for wholeness, the negotiations helped to verbalize something which has recurred since the Enlightenment: a dialectical desire for reconciliation and an ongoing emancipatory attempt to remember one's own nature.
description: Body Politics: Zeitschrift für Körpergeschichte, vol. 10(2022), no. 14, p. 38
Lieb's soliton-like excitations in harmonic trap
Creators: name: Astrakharchik, G. E.
name: Pitaevskii, L. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the solitonic Lieb II branch of excitations in one-dimensional Bose-gas in homogeneous and trapped geometry. Using Bethe-ansatz Lieb's equations we calculate the "effective number of atoms" and the "effective mass" of the excitation. The equations of motion of the excitation are defined by the ratio of these quantities. The frequency of oscillations of the excitation in a harmonic trap is calculated. It changes continuously from its "soliton-like" value ω_h/\sqrt{2} in the high density mean field regime to ω_h in the low density Tonks-Girardeau regime with ω_h the frequency of the harmonic trapping. Particular attention is paid to the effective mass of a soliton with velocity near the speed of sound.
description: 5 figures