cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Formation of Self-Organized Anode Patterns in Arc Discharge Simulations
Creators: name: Trelles, Juan Pablo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Mathematical Physics (math-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Pattern formation and self-organization are phenomena commonly observed experimentally in diverse types of plasma systems, including atmospheric-pressure electric arc discharges. However, numerical simulations reproducing anode pattern formation in arc discharges have proven exceedingly elusive. Time-dependent three-dimensional thermodynamic nonequilibrium simulations reveal the spontaneous formation of self-organized patterns of anode attachment spots in the free-burning arc, a canonical thermal plasma flow established by a constant DC current between an axi-symmetric electrodes configuration in the absence of external forcing. The number of spots, their size, and distribution within the pattern depend on the applied total current and on the resolution of the spatial discretization, whereas the main properties of the plasma flow, such as maximum temperatures, velocity, and voltage drop, depend only on the former. The sensibility of the solution to the spatial discretization stresses the computational requirements for comprehensive arc discharge simulations. The obtained anode patterns qualitatively agree with experimental observations and confirm that the spots originate at the fringes of the arc - anode attachment. The results imply that heavy-species - electron energy equilibration, in addition to thermal instability, has a dominant role in the formation of anode spots in arc discharges.
description: 36 pages, 10 figures, 6 tables
Born's rule from statistical mechanics of classical fields: from hitting times to quantum probabilities
Creators: name: Khrennikov, Andrei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We show that quantum probabilities can be derived from statistical mechanics of classical fields. We consider Brownian motion in the space of fields and show that such a random field interacting with threshold type detectors produces clicks at random moments of time. And the corresponding probability distribution can be approximately described by the formalism of quantum mechanics. Hence, probabilities in quantum mechanics and classical statistical mechanics differ not so much as it is typically claimed. The temporal structure of the "prequantum random field" (which is the $L_2$-valued Wiener process) plays the crucial role. Moments of detector's clicks are mathematically described as hitting times which are actively used in classical theory of stochastic processes. Born's rule appears as an approximate rule. In principle, the difference between the "precise detection probability rule" derived in this paper and the conventional Born's rule can be tested experimentally. In our model the presence of the random gain in detectors playes a crucial role. We also stress the role of the detection threshold. It is not merely a technicality, but the fundamental element of the model.
description: arXiv admin note: text overlap with arXiv:0906.1539 by other authors
The transition to a layered phase in the anisotropic five-dimensional SU(2) Yang-Mills theory
Creators: name: Del Debbio, Luigi
name: Kenway, Richard D.
name: Lambrou, Eliana
name: Rinaldi, Enrico
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We extend to large lattices the work of a previous investigation of the phase diagram of the anisotropic five-dimensional SU(2) Yang-Mills model using Monte Carlo simulations in the regime where the lattice spacing in the fifth dimension is larger than in the other four dimensions. We find a first order phase transition between the confining and deconfining phase at the anisotropic parameter point $β_4=2.60$ which was previously claimed to be the critical point at which the order of the transition changes from first to second. We conclude that large lattices are required to establish the first order nature of this line of transitions and consequently that the scenario of dimensional reduction of the five-dimensional theory to a continuum four-dimensional theory via the existence of the so-called "layer phase" is unpromising.
description: 5 pages, 1 table, 6 figures
GaN / VO2 heteroepitaxial p-n junctions: Band offset and minority carrier dynamics
Creators: name: Zhou, You
name: Ramanathan, Shriram
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report on experimental realization of p-n heterojunctions based on p-type GaN, and an n-type correlated oxide, VO2. The band offsets are evaluated by current-voltage and capacitance voltage measurements at various temperatures. A band diagram based on the conventional band bending picture is proposed to explain the evolution of the apparent barier height from electrical measurements and it suggests that the work function of VO2 decreases by ~0.2 eV when it goes through the insulator to metal transtion, in qualitative agreement with Kelvin force microscopy measurements reported in literature. The frequency dependent capacitance measurements allows us to differentiate the miniority carrier effect from the interface states and series resistance contributions, and estimate the minority carrier lifetime in insulating phase of VO2 to be of the order of few microseconds. The nitride-oxide based p-n heterojunctions provide a new dimension
Non-perturbative approach to the problem of anomalous FB asymmetry in top pair production at TEVATRON
Creators: name: Arbuzov, Boris A.
name: Zaitsev, Ivan V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We apply Bogoliubov compensation principle to the problem of forward-backward asymmetry in $t \bar t$ production at TEVATRON. The non-trivial solution of compensation equation for anomalous four-fermion interaction effective interaction of doublets of heavy and light quarks leads to possibility of existence of $\bar t u,\, \bar b d$ vector bound states (resonance). The coupling of the bound state to $\bar t,\,u$ pair is calculated. With this result we obtain satisfactory description of totality of data on the effect of FB asymmetry including slope of effect dependence on invariant $t \bar t$ mass. Predictions for the resonance mass and production cross-section at LHC are presented.
description: 9 pages, 4 figures
A family of simple weight modules over the Virasoro algebra
Creators: name: Lu, Rencai
name: Zhao, Kaiming
Publisher: name: arXiv
Year: 2013
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Using simple modules over the derivation Lie algebra $C[t]\frac{d}{d t}$ of the associative polynomial algebra $C[t]$, we construct new weight Virasoro modules with all weight spaces infinite dimensional. We determine necessary and sufficient conditions for these new weight Virasoro modules to be simple, and determine necessary and sufficient conditions for two such weight Virasoro modules to be isomorphic. If such a weight Virasoro module is not simple, we obtain all its submodules. In particular, we completely determine the simplicity and the isomorphism classes of the weight modules defined in [C. Conley, C. Martin; A family of irreducible representations of the Witt Lie algebra with infinite-dimensional weight spaces. Compos. Math., 128(2), 153-175(2001)] which are a small portion of the modules constructed in this paper.
description: 24 pages
Exploiting Matrix Symmetries and Physical Symmetries in Matrix Product States and Tensor Trains
Creators: name: Huckle, T.
name: Waldherr, K.
name: Schulte-Herbrueggen, T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 15A69, 15B57, 81-08, 15A18

description: We focus on symmetries related to matrices and vectors appearing in the simulation of quantum many-body systems. Spin Hamiltonians have special matrix-symmetry properties such as persymmetry. Furthermore, the systems may exhibit physical symmetries translating into symmetry properties of the eigenvectors of interest. Both types of symmetry can be exploited in sparse representation formats such as Matrix Product States (MPS) for the desired eigenvectors. This paper summarizes symmetries of Hamiltonians for typical physical systems such as the Ising model and lists resulting properties of the related eigenvectors. Based on an overview of Matrix Product States (Tensor Trains or Tensor Chains) and their canonical normal forms we show how symmetry properties of the vector translate into relations between the MPS matrices and, in turn, which symmetry properties result from relations within the MPS matrices. In this context we analyze different kinds of symmetries and derive appropriate normal forms for MPS representing these symmetries. Exploiting such symmetries by using these normal forms will lead to a reduction in the number of degrees of freedom in the MPS matrices. This paper provides a uniform platform for both well-known and new results which are presented from the (multi-)linear algebra point of view.
Electron-hole symmetry and solutions of Richardson pairing model
Creators: name: Pogosov, W. V.
name: Lin, N. S.
name: Misko, V. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Richardson approach provides an exact solution of the pairing Hamiltonian. This Hamiltonian is characterized by the electron-hole pairing symmetry, which is however hidden in Richardson equations. By analyzing this symmetry and using an additional conjecture, fulfilled in solvable limits, we suggest a simple expression of the ground state energy for an equally-spaced energy-level model, which is applicable along the whole crossover from the superconducting state to the pairing fluctuation regime. Solving Richardson equations numerically, we demonstrate a good accuracy of our expression.
description: 9 pages, 1 figure; accepted for publication in Eur. Phys. J. B
title: Hartwig Lüdtke und Kurt Schietzel (Hrsg.), Handbuch zur mittelalterlichen Keramik in Nordeuropa. Schriften des archäologischen Landesmuseums, Bd. 6, Neumünster: Wachholtz Verlag 2001
Creators: name: Schreg, Rainer
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Hartwig Lüdtke und Kurt Schietzel (Hrsg.), Handbuch zur mittelalterlichen Keramik in Nordeuropa. Schriften des archäologischen Landesmuseums, Bd. 6, Neumünster: Wachholtz Verlag 2001, 3 Bde. mit insges. 1857 S., und 543 Taf., ISBN 3-529-01818-X
Observables Generalizing Positive Operator Valued Measures
Creators: name: Basieva, Irina
name: Khrennikov, Andrei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We discuss a generalization of POVM which is used in quantum-like modeling of mental processing.
description: arXiv admin note: text overlap with arXiv:0711.1366
Deformation in 28Si* produced via 16O + 12C reaction
Creators: name: Kundu, S.
name: Bhattacharya, C.
name: Bhattacharya, S.
name: Rana, T. K.
name: Banerjee, K.
name: Muhkopadhayay, S.
name: Gupta, D.
name: Dey, A.
name: Saha, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The energy spectra of the $α$ particles emitted in the reactions $^{16}$O (7-10 MeV/nucleon) + $^{12}$C have been measured in the center of mass angular range of 25$^\circ$ $\lesssim θ_{c.m.} \lesssim$ 70$^\circ$. The experimental energy spectra have been compared with those obtained from the statistical model calculation with "deformability" parameters predicted by rotating liquid drop model (RLDM) and also fitted the same with optimized "deformability" parameters, which are quite different from the respective RLDM values. The data have also been found to be explained quite well using "frozen" deformation approximation, where the "deformability" parameters have been kept fixed at RLDM values of the parent nucleus throughout the decay process. The effective radius in the latter case is smaller compared to that obtained using the optimized parameters; however, in both cases, the deformations (effective radii) are larger than the corresponding RLDM values. So, considering the uncertainties in the estimation of actual compound nucleus deformations, it can, only qualitatively, be said that equilibrium orbiting, which is similar to particle evaporation in time scale, could also be one of the contributing factors for the observed deformation.
description: 7 pages, 5 figures. Accepted in Phys. Rev. C
Thermal valence-bond-solid transition of quantum spins in two dimensions
Creators: name: Jin, Songbo
name: Sandvik, Anders W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the S=1/2 Heisenberg (J) model on the two-dimensional square lattice in the presence of additional higher-order spin interactions (Q) which lead to a valence-bond-solid (VBS) ground state. Using quantum Monte Carlo simulations, we analyze the thermal VBS transition. We find continuously varying exponents, with the correlation-length exponent "nu" close to the Ising value for large Q/J and diverging when Q/J approaches the quantum-critical point (the critical temperature Tc -> 0). This is in accord with the theory of deconfined quantum-critical points, which predicts that the transition should approach a Kosterlitz-Thouless (KT) fixed point when Tc -> 0+ (while the transition versus Q/J for T=0 is in a different class). We find explicit evidence for KT physics by studying the emergence of U(1) symmetry of the order parameter at T=T_c when Tc -> 0.
description: 5 pages, 5 figures
title: Gründungsgeschichte des Faches „Iranistik“ an der Universität Heidelberg
Creators: name: Sadeghi Seraji, Omid
Publisher: name: University Library Heidelberg
Year: 2015

description: Das Fach Iranistik wurde im W/S 1978 an der Universität Heidelberg, als Nebenfach für Magister und Promotion, eingerichtet. Vor der Einrichtung des Faches waren die dazu verbundenen Themen in Rahmen der Lehrangebot der Fakultäten für Orientalistik und Altertumswissenschaft, neuphilologischen Fakultät und philosophisch-historischen Fakultät repräsentiert. Dieses Schreiben rekonstruiert den Gründundgsakt dieses Faches anhand der an der Universitätsarchiv aufbewahrten Korrespondenz zu diesem Thema. رشته ی ایران شناسی در ترم پائیزه ی سال 1978 در دانشگاه هایدلبرگ به عنوان رشته ی جانبی، برای مقاطع مگیستر و دکتری تاسیس شد. پیش از تاسیس رشته ی ایران شناسی درس های مربوط به ایران شناسی در قالب دروس تاریخ باستان و زبان های هند و اروپایی تدریس می شد. ایران شناسی از ترکیب دروس دانشکده های شرق شناسی و تاریخ باستان، زبان های معاصر و فلسفه و تاریخ تاسیس شد. در این نوشتار بر اساس اسناد باقی موجود در آرشیو دانشگاه، سیاست ها، مکاتبات و حوادث منجر به تاسیس رشته ی ایران شناسی بازسازی میگردد.
title: Stelle der „aǧāyeb-nāmeh” Schriften im System der altertümlichen Wissenschaften Fatemeh Mehri
Creators: name: Mehri, Fatemeh
Publisher: name: University Library Heidelberg
Year: 2015

description: Die mit dem Namen „aǧāyeb-nāmeh” bezeichneten Schriften der persischen Literatur wurden häufig nur ausgehend von ihren sprachlichen Aspektn zum Objekt der Recherche der Forschen dieses Feldes Geworden. Dadurch wurde deren „sprachlichen“ Eigenarten und Ausprägung hervorgehoben. Die Inhalt dieser Texten wurde aber stets mit dem Vorwürf „abergläubig“ und „ohne wissenschaftliche Wert“ zu sein vernachlässigt. Ziel dieses Schreibens ist zu zeigen, dass alleinige Zuwendung zu der Sprache, jene Hinweise und Schlüsselbegriffe vernachlässigen lässt, die zum Verständnis dieser Art von Texten beitragen. Diese Hinweise und Schlüsselbegriffe sind in Bezug auf ein System der Wissenschaft zu deuten. Deshalb setzt deren Erläuterung eine begriffliche Erklärung und eine Methodologie der Wissenschaft voraus. In diesem Schreiben ist zu Erklären, inwiefern die Disziplin „Orientalismus“ zur Gestalltung der heutigen Verständnis beigetragen hat. جایگاه متون عجایب نامه ای در نظام دانش های کهن فاطمه مهری در ميان متون كهن فارسي، گاه دسته‌اي از متن‌ها كه اغلب با عنوان كلي «عجايب‌نامه» شناخته مي‌شوند، مورد توجه پژوهشگران زبان و ادب فارسي قرار گرفته‌اند؛ به اين معني كه با برجسته‌سازي وجوه ارزشمند «زباني» موجود در آن‌ها، معرفي، تصحيح و منتشر شده‌‌اند، اما همواره از نظر محتوا، «خرافه‌آميز» و فاقد «ارزش علمی» به شمار رفته‌اند‌يزآميز ؛ هدف اين نوشتار، آن است كه نشان دهد قرار دادن زبان به عنوان نقطۀ عزیمتی برای شناخت این متون، می‌تواند موجب غفلت از اشارات و مفاهیم کلیدی‌ای شود که در شناخت این متن‌ها به کار می‌آید و ماهیت آن‌ها را روشن می‌سازد. این اشارات و مفاهیم اغلب در ارجاع به یک نظام علمی معنا می‌یابند؛ از این رو تدقیق در آن‌ها، پیش از هر چیز نیازمند بحث دربارۀ ماهیت علم و روش‌شناسی علمی است؛ در این مقاله همچنین نشان خواهیم داد شرق‌شناسی در شکل‌گیری رویکردهای موجود، چه نقشی داشته است. واژگان کلیدی: خاصیت (علم خواص)، سنت ادبی، شرق‌شناسی، علم،متن عجایب‌نامه‌ای
Effects of Lyman alpha scattering in the IGM on clustering statistics of Lyman alpha emitters
Creators: name: Behrens, Christoph
name: Niemeyer, Jens
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the correlations between the observed fraction of Lyman alpha emission from star-forming galaxies and the large scale structure by post-processing snapshots of a large, high resolution hydrodynamical simulation with a Lyman alpha radiative transfer code at redshifts z=4, 3, 2. We find correlations of the observed fraction with density, density gradient along the line of sight, velocity and velocity gradient along the line of sight, all within the same order of magnitude (tens of percent). Additionally, a correlation with the angular momentum of the dark matter halo is detected. In contrast to a previous study, we find no significant deformation of the 2-point correlation function due to selection effects from radiative transfer in the IGM within the limited statistics of the simulation volume.
description: 13 pages; accepted for publication in A&A
Convergence of a variational Lagrangian scheme for a nonlinear drift diffusion equation
Creators: name: Matthes, Daniel
name: Osberger, Horst
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: Primary: 65M12. Secondary: 49M10, 35K59

description: We study a Lagrangian numerical scheme for solution of a nonlinear drift diffusion equation on an interval. The discretization is based on the equation's gradient flow structure with respect to the Wasserstein distance. The scheme inherits various properties of the continuous flow, like entropy monotonicity, mass preservation, metric contraction and minimum/maximum principles. As the main result, we give a proof of convergence in the limit of vanishing mesh size under a CFL-type condition. We also present results from numerical experiments.
description: 28 pages, 6 figures
Optimal Feedback Rate Sharing Strategy in Zero-Forcing MIMO Broadcast Channels
Creators: name: Lee, Jung Hoon
name: Choi, Wan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we consider a multiple-input multiple-output broadcast channel with limited feedback where all users share the feedback rates. Firstly, we find the optimal feedback rate sharing strategy using zero-forcing transmission scheme at the transmitter and random vector quantization at each user. We mathematically prove that equal sharing of sum feedback size among all users is the optimal strategy in the low signal-to-noise ratio (SNR) region, while allocating whole feedback size to a single user is the optimal strategy in the high SNR region. For the mid-SNR region, we propose a simple numerical method to find the optimal feedback rate sharing strategy based on our analysis and show that the equal allocation of sum feedback rate to a partial number of users is the optimal strategy. It is also shown that the proposed simple numerical method can be applicable to finding the optimal feedback rate sharing strategy when different path losses of the users are taken into account. We show that our proposed feedback rate sharing scheme can be extended to the system with stream control and is still useful for the systems with other techniques such as regularized zero-forcing and spherical cap codebook.
description: To appear, IEEE Transactions on Wireless Communications
Parameter-elliptic operators on the extended Sobolev scale
Creators: name: Murach, Aleksandr A.
name: Zinchenko, Tetiana
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary 58J05, Secondary 46E35

description: Parameter--elliptic pseudodifferential operators given on a closed smooth manifold are investigated on the extended Sobolev scale. This scale consists of all Hilbert spaces that are interpolation spaces with respect to the Hilbert Sobolev scale. We prove that these operators set isomorphisms between appropriate spaces of the scale provided the parameter is modulo large enough. For solutions to the corresponding parameter--elliptic equations, we establish two-sided a priori estimates, in which the constants are independent of the parameter.
description: 14 pages
Feature-based Adaptive Process Planning in Material Extrusion
Creators: name: Wang, Mengqiao
Publisher: name: Monash University
Year: 2025
Subjects: classificationCode: 401401
subject: Additive manufacturing

description: This thesis introduces a novel feature-based process planning framework for Material Extrusion (ME). ME, also known as FDM or FFF, is a common type of Additive Manufacturing that works by melting and extruding thermoplastics. ME offers many modifiable manufacturing parameters that can affect various areas of part performance. Feature-based process planning methods can locally modify and apply manufacturing parameters to avoid conflicts and compromises. Compared to existing methods, the proposed framework offers the ability to share and reuse feature data with a standardised method for dividing parts into features, fully parameterised features with simple geometry, and a feature database.
Fractionalized Non-Self-Dual Solutions in the CP(N-1) Model
Creators: name: Dabrowski, Robert
name: Dunne, Gerald V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study non-self-dual classical solutions in the CP(N-1) model with Z_N twisted boundary conditions on the spatially compactified cylinder. These solutions have finite, and fractional, classical action and topological charge, and are `unstable' in the sense that the corresponding fluctuation operator has negative modes. We propose a physical interpretation of these solutions as saddle point configurations whose contributions to a resurgent semi-classical analysis of the quantum path integral are imaginary non-perturbative terms which must be cancelled by infrared renormalon terms generated in the perturbative sector.
description: 11 pages, 5 figures
Collective Suppression of Linewidths in Circuit QED
Creators: name: Nissen, Felix
name: Fink, Johannes M.
name: Mlynek, Jonas A.
name: Wallraff, Andreas
name: Keeling, Jonathan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report the experimental observation, and a theoretical explanation, of collective suppression of linewidths for multiple superconducting qubits coupled to a good cavity. This demonstrates how strong qubit-cavity coupling can significantly modify the dephasing and dissipation processes that might be expected for individual qubits, and can potentially improve coherence times in many-body circuit QED.
Княжа Гора
Creators: name: Кучера, Михайло
Publisher: name: figshare
Year: 2022
Subjects: Archaeology

description: Кучера, М. П. 1975. Княжа Гора. В: Бібіков, С. М. (гол. ред.). Археологія Української РСР. Т. 3. Довженок, В. Й. (відп. ред.). Ранньослов’янський та давньоруський періоди. Ч. 2. Археологія епохи Київської Русі. ІІ: Городища, селища та могильники. Київ: Наукова думка, с. 267–269.
title: Die Besiedlungsgeschichte der Bandkeramik in Kujawien
Creators: name: Pyzel, Joanna
Publisher: name: University Library Heidelberg
Year: 2015

description: Dies ist ein Beitrag zur Rekonstruktion der Besiedlungsgeschichte der Bandkeramik in Kujawien sowie der Analyse der Besiedlungsmuster in diesem Gebiet.
Durch eine statistische Analyse, die anhand der Stilistik der Keramik vorgenommen wurde, konnte eine Auswahl von 21 Fundstellen aus unterschiedlichen Teilen und Phasen der Bandkeramik in Kujawien relativ
datiert werden. Diese Datierung bildet die Grundlage für ein Modell, mit dem sich tragfähige Thesen zur bandkeramischen Besiedlungsgeschichte formulieren lassen. Die Hauptergebnisse aufgrund dieses Modells sind, dass das Gebiet Kujawiens schon in der ältesten Bandkeramik dünn besiedelt war, dass die intensive Besiedlung mit der mittleren Bandkeramik einsetzt und dass die Anzahl der Siedlungen auch in späteren Phasen nicht mehr ansteigt. Daran an schließt sich die Auswertung der Befunde von unterschiedlichen
Besiedlungsniveaus – von der Makroregion bis hin zu einzelnen Siedlungen - mit dem Ergebnis, dass sich die Besiedlungsmuster der Bandkeramik unterschiedlicher Regionen nicht wesentlich von einander unterscheiden.
description: This contribution tries to reconstruct the settlement development of the Linear Bandceramic in Kujawia and to analyse the settlement structure there. A selection of 21 sites from various parts and periods of the Linear Bandceramic in Kurawia could be dated by statistical analysis of the pottery styles. The dating provides the basis for a model for enunciating sustainable theses on the settlement development of the Linear Bandceramic: In summary, the region of Kujawia was thinly populated already in the period of the Oldest Linear Bandceramic, the middle Linear Bandceramic sees the begin of an dense settlement with the number of settlement sites not growing anymore in later periods. This is followed by an analysis of the settlement features from various levels of settlement – from the macro-region to the single sites – with the result that settlement structures of the Linear Bandceramic do not vary much from region to region.
Дівич гора
Creators: name: Кучера, Михайло
Publisher: name: figshare
Year: 2019
Subjects: Archaeology

description: Кучера, М. П. 1975. Дівич Гора. В: Бібіков, С. М. (гол. ред.). Археологія Української РСР. Т. 3. Довженок, В. Й. (відп. ред.). Ранньослов’янський та давньоруський періоди. Ч. 2. Археологія епохи Київської Русі. ІІ: Городища, селища та могильники. Київ: Наукова думка, с. 269–270.
title: Spatial analyses of selected dense find scatters at the Allerød site Niederbieber, Neuwied (Rhineland- Palatinate) – excavations 1996-1999
Creators: name: Gelhausen, Frank
Publisher: name: University Library Heidelberg
Year: 2015

description: Seit der Entdeckung des Federmesser-Fundplatzes Niederbieber 1980, wurden bis heute mehr als 900 m² Fläche ausgegraben. Während der letzten Grabungskampagnen zwischen 1996 und 1999 konnten elf weitere
Fundkonzentrationen (K VIII-K XVII) im zentralen Fundplatzbereich aufgedeckt werden. Die Fundkonzentrationen zeichneten sich dabei meist durch zwei zeitlich und räumlich versetzte, unterschiedliche Aktivitätsbereiche aus. Die Anhäufung rückengestumpfter Stücke in unmittelbarer Nähe der Feuerstelle lässt Tätigkeiten zur Jagdvorbereitung (hafting and retooling) vermuten, während die Verwertung der Jagdbeute
(Jagdnachbereitung) abseits der Feuerstelle durch die Akkumulation von Kratzern, Endretuschen sowie Lateralretuschen angezeigt wird. Aufgrund der verhältnismäßig einheitlichen Merkmale im Verteilungsmuster der Fundkonzentrationen ist die Interpretation des Fundplatzes Niederbieber als ein »special task camp« von relativ kleinen Jägergruppen möglich. Anhaltspunkte auf einen längeren Aufenthalt der Menschen fehlen für Niederbieber bislang. In der Region am Mittelrhein deuten hingegen einige Merkmale im Fundinventar sowie im Verteilungsmuster des Federmesser-Fundplatzes Kettig auf eine längere Besiedlung hin (»base camp«). Die offensichtlich unterschiedlichen Funktionen der Fundplätze Niederbieber und Kettig bieten für die Region am Mittelrhein damit neue Perspektiven für unser Verständnis eines Siedlungssystems der allerødzeitlichen Federmesser-Gruppen.
description: Excavations at the Federmessergruppen site of Niederbieber since 1980 have until now uncovered an area of more than 900 m². Excavation campaigns between 1996 and 1999 in particular unearthed eleven dense
find scatters (K VIII-K XVII) in the central area of the site. These find concentrations are characterized by some common features, suggesting that they were the focus of similar activities. The two main activities
recognized are preparation for the hunt, indicated by the dominance of backed pieces accumulated close to the hearths (indicating hafting and retooling), and a post-hunt phase of carcass processing, represented
by the presence of scrapers, truncated and laterally modified pieces which tend to be located away from the hearth. Niederbieber can thus be interpreted as a »special task camp«, at which small groups of Late
Palaeolithic hunters met. Indications of a relatively long term occupation are absent at Niederbieber so far. Within the region, some features of the Federmessergruppen site of Kettig suggest a longer occupation phase and a function (»base camp«) other than the one proposed for Niederbieber. This circumstance offers new perspectives for the reconstruction of possible settlement systems in the Central Rhineland during the Allerød period.
title: Inhalt / Aktuelle Ausstellungen / Impressum
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2015

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 46 (2015): KulturGut: aus der Forschung der Germanischen Nationalmuseums, Beginn und Erscheinungsfrequenz: Jahr: 2004
Evidence for nonlocal electrodynamics in planar Josephson junctions
Creators: name: Boris, A. A.
name: Rydh, A.
name: Golod, T.
name: Motzkau, H.
name: Klushin, A. M.
name: Krasnov, V. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study temperature dependence of the critical current modulation Ic(H) for two types of planar Josephson junctions: a low-Tc Nb/CuNi/Nb and a high-Tc YBa2Cu3O7 bicrystal grain-boundary junction. At low T both junctions exhibit a conventional behavior, described by the local sine-Gordon equation. However, at elevated T the behavior becomes qualitatively different: the Ic(H) modulation field deltaH becomes almost T-independent and neither deltaH nor the critical field for penetration of Josephson vortices vanish at Tc. Such an unusual behavior is in good agreement with theoretical predictions for junctions with nonlocal electrodynamics. We extract absolute values of the London penetration depth from our data and show that a crossover from local to nonlocal electrodynamics occurs with increasing T when London penetration depth becomes larger than the electrode thickness.
description: 4 pages, 2 figures, submitted to Phys. Rev. Lett
title: Health monitoring and medicinal plant use by bonobos at LuiKotale in the Democratic Republic of the Congo
Creators: name: Kreyer, M
Publisher: name: Liverpool John Moores University
Year: 2022

description: Infectious diseases are a major threat to the survival and fitness of all great ape species. Because of their close genetic relatedness, great apes share human susceptibility to a variety of viral, bacterial and parasitic infections. In the context of a growing human population and increasing habitat encroachment, pathogen transmission is of great concern for both humans and great apes. Therefore, monitoring great ape health status is key to understanding pathogen-host dynamics. Here, I studied two communities of habituated bonobos (Pan paniscus) at the LuiKotale field site in the Democratic Republic of the Congo (DRC) between December 2018 and July 2020. I first looked at health impairments and how they influence feeding behaviour and food choice in bonobos. I then investigated the consumption of Manniophyton fulvum leaves and stem bark by bonobos, and its association with parasite presence in faeces. Lastly, I measured individual urinary neopterin levels as a marker for the activation of cellular immunity, and studied how urinary neopterin varied with season, individual age, sex, reproductive status, and the presence of visual sickness symptoms. I found the presence of health impairments predicted neither a change in feeding behaviour nor an increased consumption of medicinal plant candidates. I hypothesized that bonobos used medicinal plant candidates as prophylaxis rather than cures. The consumption of M. fulvum leaves and stem bark was not associated with the presence of strongyle worms and cestode proglottids in faeces. My results suggest alternative triggers of the consumption of M. fulvum, including intestinal pain and discomfort. Finally, I found urinary neopterin levels increased with the presence of respiratory symptoms and fluctuated over a one-year period. I discussed the possible link to malaria and other infectious diseases in bonobo’s neopterin variation. This study highlights the extent of medicinal plant use by bonobos at LuiKotale and sheds light on ecoimmunological aspects of the species. Further research is needed to understand the nature of diseases and infections carried by and affecting bonobos in order to better understand how individuals use medicinal plant candidates to maintain and restore health in the wild.
Complete relativistic second-order dissipative hydrodynamics from the entropy principle
Creators: name: Jaiswal, Amaresh
name: Bhalerao, Rajeev S.
name: Pal, Subrata
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a new derivation of relativistic dissipative hydrodynamic equations, which invokes the second law of thermodynamics for the entropy four-current expressed in terms of the single-particle phase-space distribution function obtained from Grad's 14-moment approximation. This derivation is complete in the sense that all the second-order transport coefficients are uniquely determined within a single theoretical framework. In particular, this removes the long-standing ambiguity in the relaxation time for bulk viscosity thereby eliminating one of the uncertainties in the extraction of the shear viscosity to entropy density ratio from confrontation with the anisotropic flow data in relativistic heavy-ion collisions. We find that in the one-dimensional scaling expansion, these transport coefficients prevent the occurrence of cavitation even for rather large values of the bulk viscosity estimated in lattice QCD.
description: 5 pages, 2 figures, version to appear in PRC (Rapid Comm)
Policy Brief on the Approach of the IntelComp Project to Use Artificial Intelligence Tools for Science, Technology and Innovation Policy
Creators: name: Markianidou, Paresa
name: Tsipouri, Lena
Publisher: name: Zenodo
Year: 2023

description: Science, Technology and Innovation policy making is being revolutionized using text data analytics. The existence of repositories of scientific knowledge, together with the advances in text analytics, are increasingly offering the opportunity to research funders to improve their policy making across the policy cycle. The complexity of the innovation system leads to a granularity challenge. Sophisticated policy questions can only be answered using refined disciplinary, stakeholder and territorial breakdowns, which in turn call for advanced mappings, bottom-up machine-guided approaches and multifaceted visualizations. This policy brief shows the first results of the IntelComp platform: the use cases of Energy, as a key element for mitigating climate change, and of science and technology in Artificial Intelligence. They indicate that IntelComp has successfully produced topic models and automatic classifiers to address the granularity challenge.
title: Evanescent Ureterocele: The introduction of the “Fugu Sign”
Creators: name: Saliba, Thomas
Publisher: name: EURORAD
Year: 2023
Subjects: subject: Paediatric radiology
subject: Paediatric
subject: Urinary Tract / Bladder
subject: Ultrasound
subject: Clinical Cases

description: Clinical History: A 2-year-old girl presented to the radiology department for an ultrasound follow-up of a right sided renal duplication.

description: 2 years, female
Tunneling in cosine potential with periodic boundary conditions
Creators: name: Ambrozinski, Zbigniew
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81Q20

description: In this paper we discuss three methods to calculate energy splitting in cosine potential on a circle, Bloch waves, semi--classical approximation and restricted basis approach. While the Bloch wave method gives only a qualitative result, with the WKB method we are able to determine its unknown coefficients. The numerical approach is most exact and enables us to extract further corrections to previous results.
description: 9 pages, 3 figures
A remark on the permutation representations afforded by the embeddings of $O_{2m}^\pm(2^f)$ in $Sp_{2m}(2^f)$
Creators: name: Guest, Simon
name: Previtali, Andrea
name: Spiga, Pablo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We show that the permutation module over $\mathbb{C}$ afforded by the action of $Sp_{2m}(2^f)$ on its natural module is isomorphic to the permutation module over $\mathbb{C}$ afforded by the action of $Sp_{2m}(2^f)$ on the union of the right cosets of $O_{2m}^+(2^f)$ and $O_{2m}^-(2^f)$.
Quantum Structure in Economics: The Ellsberg Paradox
Creators: name: Aerts, Diederik
name: Sozzo, Sandro
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The 'expected utility hypothesis' and 'Savage's Sure-Thing Principle' are violated in real life decisions, as shown by the 'Allais' and 'Ellsberg paradoxes'. The popular explanation in terms of 'ambiguity aversion' is not completely accepted. As a consequence, uncertainty is still problematical in economics. To overcome these difficulties a distinction between 'risk' and 'ambiguity' has been introduced which depends on the existence of a Kolmogorovian probabilistic structure modeling these uncertainties. On the other hand, evidence of everyday life suggests that context plays a fundamental role in human decisions under uncertainty. Moreover, it is well known from physics that any probabilistic structure modeling contextual interactions between entities structurally needs a non-Kolmogorovian framework admitting a quantum-like representation. For this reason, we have recently introduced a notion of 'contextual risk' to mathematically capture situations in which ambiguity occurs. We prove in this paper that the contextual risk approach can be applied to the Ellsberg paradox, and elaborate a sphere model within our 'hidden measurement formalism' which reveals that it is the overall conceptual landscape that is responsible of the disagreement between actual human decisions and the predictions of expected utility theory, which generates the paradox. This result points to the presence of a quantum conceptual layer' in human thought which is superposed to the usually assumed classical logical layer', and conceptually supports the thesis of several authors suggesting the presence of quantum structure in economics and decision theory.
description: 8 pages, 1 figure. arXiv admin note: substantial text overlap with arXiv:1105.1814, arXiv:1104.1459, arXiv:1105.1812
Disclosure and Help-Seeking after Sexual Violence: Giving Voice to the Experiences of African and Caribbean Women
Creators: name: Mintah, Ruth
Publisher: name: University of East London
Year: 2022
Subjects: Africa and Caribbean women
Sexual violence,
disclosure
help-seeking
social support
Black feminism
intersectionality

description: There is little theoretical and empirical exploration of Black African and Caribbean women’s experiences of sexual violence in the UK. Subsequently, less is known about their post-sexual violence disclosure and help-seeking experiences. Therefore, this thesis aimed to explore factors that might influence Black women’s decision to disclose or seek help after sexual violence and their experiences of doing so. Black feminists have long argued for the necessity to examine the lives of Black women through an intersectional lens, considering how their unique location within society shapes their lived experiences. Therefore, utilising a Black feminist framework, this study interviewed 12 African and Caribbean heritage women using semi-structured interviews. A thematic analysis identified three broad themes: ‘The Sound of Silence’, ‘Speaking the Unspeakable,’ and ‘Needing a Safe Space to Feel Heard.’ The themes revealed that for African and Caribbean heritage women, decision-making around disclosure and the experience of doing so is complex, often contoured by broader sociocultural discourses. Furthermore, these themes highlighted that to support Black survivors of sexual violence adequately, more consideration needs to be given to their diverse cultural contexts and intersectional location within British society. The findings from this study are used to inform implications for how clinical professionals, researchers, and policymakers.
Городище поблизу с. Городище на Волині
Creators: name: Кучера, Михайло
Publisher: name: figshare
Year: 2019
Subjects: Archaeology

description: Кучера, М. П. 1975. Городище поблизу с. Городище на Волині. В: Бібіков, С. М. (гол. ред.). Археологія Української РСР. Т. 3. Довженок, В. Й. (відп. ред.). Ранньослов’янський та давньоруський періоди. Ч. 2. Археологія епохи Київської Русі. ІІ: Городища, селища та могильники. Київ: Наукова думка, с. 276–277.
Drivers of health equity in the Americas: Protocol of a scoping review
Creators: name: Gibbons, Claire
name: Adriene Cox
name: MAYLEN ROJAS-BOTERO
name: Araujo, Miguel
name: Chapman, Evelina
name: García-Saisó, Sebastian
name: OSCAR MUJICA
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: SDOH
subject: Americas
subject: drivers
subject: Scoping Review
subject: Equity in health

description: The purpose of this scoping review is to identify the main existing understandings of the drivers of equity in health, their relationship with the social determinants of health, and the methods used to study them, in the context of the Americas
Graph theory enables drug repurposing. How a mathematical model can drive the discovery of hidden Mechanisms of Action
Creators: name: Gramatica, Ruggero
name: Di Matteo, T.
name: Giorgetti, Stefano
name: Barbiani, Massimo
name: Bevec, Dorian
name: Aste, Tomaso
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: We introduced a methodology to efficiently exploit natural-language expressed biomedical knowledge for repurposing existing drugs towards diseases for which they were not initially intended. Leveraging on developments in Computational Linguistics and Graph Theory, a methodology is defined to build a graph representation of knowledge, which is automatically analysed to discover hidden relations between any drug and any disease: these relations are specific paths among the biomedical entities of the graph, representing possible Modes of Action for any given pharmacological compound. These paths are ranked according to their relevance, exploiting a measure induced by a stochastic process defined on the graph. Here we show, providing real-world examples, how the method successfully retrieves known pathophysiological Mode of Actions and finds new ones by meaningfully selecting and aggregating contributions from known bio-molecular interactions. Applications of this methodology are presented, and prove the efficacy of the method for selecting drugs as treatment options for rare diseases.
description: 8 pages, 7 figures
title: Macrodystrophia Lipomatosa
Creators: name: Gala, Foram
Publisher: name: EURORAD
Year: 2023
Subjects: subject: Musculoskeletal system
subject: Bones
subject: Musculoskeletal bone
subject: Musculoskeletal soft tissue
subject: Digital radiography
subject: MR
subject: Developmental disease
subject: Clinical Cases

description: Clinical History: A 6-month-old boy presented with gradual and progressive enlargement of the right upper limb since birth, especially the right hand involving the middle three fingers. He had difficulty in thumb opposition and resultant functional disability. There is associated clinodactyly of right thumb with syndactyly of the middle and ring fingers. 

description: 6 months, male
Temperature-dependent optical conductivity of layered LaSrFeO_4
Creators: name: Reul, J.
name: Fels, L.
name: Qureshi, N.
name: Shportko, K.
name: Braden, M.
name: Grüninger, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Compounds with intermediate-size transition metals such as Fe or Mn are close to the transition between charge-transfer systems and Mott-Hubbard systems. We study the optical conductivity σ(ω) of insulating layered LaSrFeO_4 in the energy range 0.5 - 5.5 eV from 15 K to 250 K by the use of spectroscopic ellipsometry in combination with transmittance measurements. A multipeak structure is observed in both σ^a(ω) and σ^c(ω). The layered structure gives rise to a pronounced anisotropy, thereby offering a means to disentangle Mott-Hubbard and charge-transfer absorption bands. We find strong evidence that the lowest dipole-allowed excitation in LaSrFeO_4 is of Mott-Hubbard type. This rather unexpected result can be attributed to Fe 3d - O 2p hybridization and in particular to the layered structure with the associated splitting of the e_g level. In general, Mott-Hubbard absorption bands may show a strong dependence on temperature. This is not the case in LaSrFeO_4, in agreement with the fact that spin-spin and orbital-orbital correlations between nearest neighbors do not vary strongly below room temperature in this compound with a high-spin 3d^5 configuration and a Neel temperature of T_N = 366 K.
description: 8 pages, 7 figures
Донецьке городище
Creators: name: Кучера, Михайло
Publisher: name: figshare
Year: 2019
Subjects: Archaeology

description: Кучера, М. П. 1975. Донецьке городище. В: Бібіков, С. М. (гол. ред.). Археологія Української РСР. Т. 3. Довженок, В. Й. (відп. ред.). Ранньослов’янський та давньоруський періоди. Ч. 2. Археологія епохи Київської Русі. ІІ: Городища, селища та могильники. Київ: Наукова думка, с. 284–286.