cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The bumping set and the characteristic submanifold
Creators: name: Walsh, Genevieve S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M60

description: We show here that the Nielsen core of the bumping set of the domain of discontinuity of a Kleinian group $Γ$ is the boundary of the characteristic submanifold of the associated 3-manifold with boundary. Some examples of interesting characteristic submanifolds are given. We also give a construction of the characteristic submanifold directly from the Nielsen core of the bumping set. The proofs are from "first principles", using properties of uniform domains and the fact that quasi-conformal discs are uniform domains.
description: 12 pages, 2 figures; non-mathematical error fixed (The author's name is now on the title page.)
Electric-field control of the magnetic anisotropy in an ultrathin (Ga,Mn)As/(Ga,Mn)(As,P) bilayer
Creators: name: Niazi, Tarik
name: Cormier, Mathieu
name: Lucot, Damien
name: Largeau, Ludovic
name: Jeudy, Vincent
name: Cibert, Joel
name: Lemaître, Aristide
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the electric control of the magnetic anisotropy in an ultrathin ferromagnetic (Ga,Mn)As/(Ga,Mn)(As,P) bilayer with competing in-plane and out-of-plane anisotropies. The carrier distribution and therefore the strength of the effective anisotropy is controlled by the gate voltage of a field effect device. Anomalous Hall Effect measurements confirm that a depletion of carriers in the upper (Ga,Mn)As layer results in the decrease of the in-plane anisotropy. The uniaxial anisotropy field is found to decrease by a factor ~ 4 over the explored gate-voltage range, so that the transition to an out-of-plane easy-axis configuration is almost reached.
Closed subgroups generated by generic measure automorphisms
Creators: name: Solecki, Slawomir
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 37A15, 22F10, 03E15

description: We prove that for a generic measure preserving transformation $T$, the closed group generated by $T$ is a continuous homomorphic image of a closed linear subspace of $L_0(λ,{\mathbb R})$, where $λ$ is Lebesgue measure, and that the closed group generated by $T$ contains an increasing sequence of finite dimensional toruses whose union is dense.
Positive Wigner functions render classical simulation of quantum computation efficient
Creators: name: Mari, A.
name: Eisert, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that quantum circuits where the initial state and all the following quantum operations can be represented by positive Wigner functions can be classically efficiently simulated. This is true both for continuous-variable as well as discrete variable systems in odd prime dimensions, two cases which will be treated on entirely the same footing. Noting the fact that Clifford and Gaussian operations preserve the positivity of the Wigner function, our result generalizes the Gottesman-Knill theorem. Our algorithm provides a way of sampling from the output distribution of a computation or a simulation, including the efficient sampling from an approximate output distribution in case of sampling imperfections for initial states, gates, or measurements. In this sense, this work highlights the role of the positive Wigner function as separating classically efficiently simulatable systems from those that are potentially universal for quantum computing and simulation, and it emphasizes the role of negativity of the Wigner function as a computational resource.
description: 7 pages, minor changes
Gerhard Schulz, Zwischen Demokratie und Diktatur. Verfassungspolitik und Reichsreform in der Weimarer Republik, Bd. III: Von Brüning zu Hitler, 1992
Creators: name: Badia, Gilbert
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 21, Nr. 3 (1994)
Helmut Heiber, Universität unterm Hakenkreuz. Teil 1: Der Professor im Dritten Reich. Bilder aus der akademischen Provinz, 1991; Teil 2, Band 1: Die Kapitulation der Hohen Schulen. Das Jahr 1933 und seine Themen, 1992
Creators: name: Iggers, Georg G.
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 21, Nr. 3 (1994)
Oriented Cohomology Rings of the Semisimple Linear Algebraic Groups of Ranks 1 and 2
Creators: name: Gandhi, Raj
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Algebraic groups
Algebraic geometry
Algebraic oriented cohomology theories
Demazure operator
Formal group law

description: In this thesis, we compute minimal presentations in terms of generators and relations for the oriented cohomology rings of several semisimple linear algebraic groups of ranks 1 and 2 over algebraically closed fields of characteristic 0. The main tools we use in this thesis are the combinatorics of Coxeter groups and formal group laws, and recent results of Calm\`es, Gille, Petrov, Zainoulline, and Zhong, which relate the oriented cohomology rings of flag varieties and semisimple linear algebraic groups to the dual of the formal affine Demazure algebra.
Theory of the magnetic and metal-insulator transitions in RNiO3 bulk and layered structures
Creators: name: Lau, Bayo
name: Millis, Andrew J.
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: A slave rotor-Hartree Fock formalism is presented for studying the properties of the p-d model describing perovskite transition metal oxides, and a flexible and efficient numerical formalism is developed for its solution. The methodology is shown to yield, within an unified formulation, the significant aspects of the rare earth nickelate phase diagram, including the paramagnetic metal state observed for the LaNiO3 and the correct ground-state magnetic order of insulating compounds. It is then used to elucidate ground state changes occurring as morphology is varied from bulk to strained and un-strained thin-film form. For ultrathin films, epitaxial strain and charge-transfer to the apical out-of-plane oxygen sites are shown to have significant impact on the phase diagram.
description: 4 pages + ref + 3 figures, submitted for publication
Frequency Conversion in a High Q-factor Sapphire Whispering Gallery Mode Resonator due to Paramagnetic Nonlinearity
Creators: name: Creedon, Daniel L.
name: Benmessai, Karim
name: Tobar, Michael E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Nonlinear frequency conversion is a well known and widely exploited family of effects in optics, often arising from a Kerr nonlinearity in a crystal medium. Here, we report high stability frequency conversion in the microwave regime due to a $χ^{(3)}$ nonlinearity in sapphire introduced by a dilute concentration of paramagnetic spins. First, we produce a high stability comb from two microwave fields at 12.029 and 12.037 GHz corresponding to two high $Q$-factor Whispering Gallery (WG) modes within the Electron Spin Resonance (ESR) bandwidth of the Fe$^{3+}$ ion. The resulting comb is generated by a cascaded four-wave mixing effect with a 7.7 MHz repetition rate. Then, by suppressing four-wave mixing by increasing the threshold power, third harmonic generation is achieved in a variety of WG modes coupled to various species of paramagnetic ion within the sapphire.
A INTOLERÂNCIA DO BEM
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 09 – vol. 01 – n. 05/2021
A liberdade de manifestação como Direito Fundamental não faz qualquer ressalva.
A circunstância de dividir as pessoas por suas convicções não pode significar que
uns estejam certos (os que se acham progressistas) e que estejam errados os que se
apresentam como conservadores. O mundo é muito grande e nele há espaço para
todos.
Nematicity from mixed S_{+-} + d_{x^2-y^2} states in iron-based superconductors
Creators: name: Livanas, G.
name: Aperis, A.
name: Kotetes, P.
name: Varelogiannis, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We demonstrate that in iron-based superconductors, the extended S_{+-} SC state coexists with the d_{x^2-y^2} state under generic conditions. The mixed S_{+-} + d_{x^2-y^2} SC is a natural nematic state in which the tetragonal symmetry C_4 is broken to C_2 explaining puzzling findings of nematic SC in FeSe films [Science 332, 1410 (2011)]. Moreover, we report the possibility of a first order transition at low-T from the nematic S_{+-} + d_{x^2-y^2} state to the pure d_{x^2-y^2} state induced by the Zeeman magnetic field proposing an original experimental strategy for identifying our mixed nematic state in FeSe films. Extrapolating our findings, we argue that nematicity in non superconducting states of underdoped and undoped pnictides may reflect mixed S_{+-} + d_{x^2-y^2} Density Wave states.
description: Improvements and corrections in the texte, references added
The six-point remainder function to all loop orders in the multi-Regge limit
Creators: name: Pennington, Jeffrey
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 present an all-orders formula for the six-point amplitude of planar maximally supersymmetric N=4 Yang-Mills theory in the leading-logarithmic approximation of multi-Regge kinematics. In the MHV helicity configuration, our results agree with an integral formula of Lipatov and Prygarin through at least 14 loops. A differential equation linking the MHV and NMHV helicity configurations has a natural action in the space of functions relevant to this problem---the single-valued harmonic polylogarithms introduced by Brown. These functions depend on a single complex variable and its conjugate, w and w*, which are quadratically related to the original kinematic variables. We investigate the all-orders formula in the near-collinear limit, which is approached as |w|->0. Up to power-suppressed terms, the resulting expansion may be organized by powers of log|w|. The leading term of this expansion agrees with the all-orders double-leading-logarithmic approximation of Bartels, Lipatov, and Prygarin. The explicit form for the sub-leading powers of log|w| is given in terms of modified Bessel functions.
description: 25 pages, 1 figure
Dissipative Many-body Quantum Optics in Rydberg Media
Creators: name: Gorshkov, Alexey V.
name: Nath, Rejish
name: Pohl, Thomas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a theoretical framework for the dissipative propagation of quantized light in interacting optical media under conditions of electromagnetically induced transparency (EIT). The theory allows us to determine the peculiar spatiotemporal structure of the output of two complementary Rydberg-EIT-based light-processing modules: the recently demonstrated single-photon filter and the recently proposed single-photon subtractor, which, respectively, let through and absorb a single photon. In addition to being crucial for applications of these and other optical quantum devices, the theory opens the door to the study of exotic dissipative many-body dynamics of strongly interacting photons in nonlinear nonlocal media.
description: Main text: 4 pages plus references, 3 figures. Supplementary info.: 4 pages
Additional file 1 of Short-term efficacy of angiotensin receptor-neprilysin inhibitor treatment in patients with ST-segment elevation myocardial infarction with reduced ejection fraction after primary percutaneous coronary intervention: a propensity score matching study
Creators: name: Zhang, Qun
name: Qiao, Bao
name: Han, Yu
name: Sun, Shukun
name: Wang, Bailu
name: Wei, Shujian
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Pharmacology
Developmental Biology
Cancer
Science Policy

description: Additional file 1: Supplement Figure 1. The flowchart of the patient enrollment. Supplemental Table 1. The Multivariate logistic regression analysist of Primary cohort. Supplemental Table 2. The Multivariate logistic regressionanalysist of PSM cohort.
Studies on fast triggering and high precision tracking with Resistive Plate Chambers
Creators: name: Aielli, G.
name: Bilki, B.
name: Ball, R.
name: Chapman, J. W.
name: Cardarelli, R.
name: Dai, T.
name: Diehl, E.
name: Dubbert, J.
name: Ferretti, C.
name: Feng, H.
name: Francis, K.
name: Guan, L.
name: Han, L.
name: Hou, S.
name: Levin, D.
name: Li, B.
name: Liu, L.
name: Paolozzi, L.
name: Repond, J.
name: Roloff, J.
name: Santonico, R.
name: Song, H. Y.
name: Wang, X. L.
name: Wu, Y.
name: Xia, L.
name: Xu, L.
name: Zhao, T.
name: Zhao, Z.
name: Zhou, B.
name: Zhu, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report on studies of fast triggering and high-precision tracking using Resistive Plate Chambers (RPCs). Two beam tests were carried out with the 180 GeV muon beam at CERN using RPCs with gas gaps of 1.00 or 1.15 mm and equipped with readout strips with 1.27 mm pitch. This is the first beam test of RPCs with fine-pitch readout strips that explores simultaneously precision tracking and triggering capabilities. RPC signals were acquired with precision timing and charge integrating readout electronics at both ends of the strips. The time resolution was measured to be better than 600 ps and the average spatial resolution was found to be 220 um using charge information and 287 um using timing information. The dual-ended readout allows the determination of the average and the difference of the signal arrival times. The average time was found to be independent of the incident particle position along the strip and is useful for triggering purposes. The time difference yielded a determination of the hit position with a precision of 7.5 mm along the strip. These results demonstrate the feasibility using RPCs for fast and high-resolution triggering and tracking.
description: 7 pages, 11 figures, submitted to Nucl. Instru. Meth
Hans Walter Herrmann (Hrsg.), Die alte Diözese Metz. L'ancien diocèse de Metz. Referate eines Kolloquiums in Waldfischbach-Burgalben vom 21. bis 23. März 1990, 1993
Creators: name: Kammerer, Odile
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 22, Nr. 1 (1995)
SDO/AIA Detection of Solar Prominence Formation within a Coronal Cavity
Creators: name: Berger, Thomas E.
name: Liu, Wei
name: Low, B. C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We report the first analyses of SDO/AIA observations of the formation of a quiescent polar crown prominence in a coronal cavity. The He II 304 Å (log T_{max} ~ 4.8 K) data show both the gradual disappearance of the prominence due to vertical drainage and lateral transport of plasma followed by the formation of a new prominence some 12 hours later. The formation of the prominence is preceded by the appearance of a bright emission "cloud" in the central region of the coronal cavity. The peak brightness of the cloud progressively shifts in time from the Fe XIV 211 Å channel, through the Fe XII 193 Å channel, to the Fe IX 171 Å channel (log T_{max} ~ 6.2, 6.1, 5.8 K, respectively) while simultaneously decreasing in altitude. Filter ratio analysis estimates the initial temperature of the cloud in the cavity to be approximately log T \sim 6.25 K with evidence of cooling over time. The subsequent growth of the prominence is accompanied by darkening of the cavity in the 211 Å channel. The observations imply the possibility of prominence formation via in situ condensation of hot plasma from the coronal cavity, in support of the proposed process of magneto-thermal convection in coronal magnetic flux ropes.
description: 7 pages, 5 figures, accepted by The Astrophysical Journal Letters
An Assessment of the Level of Climate Change Knowledge and Awareness Among Business Students in Mindanao: Implications for Future Business Leaders
Creators: name: Palad, John Paul C.
Publisher: name: Zenodo
Year: 2022
Subjects: climate change
sustainability
business students
Mindanao
environment

description: Climate change is becoming increasingly relevant for business students, as companies recognize the need to take action on sustainability and integrate it into their operations. Studying climate change can provide business students with a better understanding of the risks and opportunities associated with climate change, helping them to develop effective sustainability strategies that meet stakeholder expectations and navigate regulatory frameworks. Furthermore, by driving innovation within their companies, business students can help develop new products and services that contribute to a more sustainable future. Overall, climate change studies are essential for business students to gain a comprehensive understanding of the environmental and economic implications of climate change, and to develop the skills and knowledge necessary to create a sustainable and resilient business.
Dirac half-metal in a triangular ferrimagnet
Creators: name: Ishizuka, Hiroaki
name: Motome, Yukitoshi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: An idea is proposed for realizing a fully spin-polarized Dirac semimetal in frustrated itinerant magnets. We show that itinerant electrons on a triangular lattice exhibit the Dirac cone dispersion with half-metallic behavior in the presence of a three-sublattice ferrimagnetic order. The Dirac nodes have the same structure as those of graphene. By variational calculation and Monte Carlo simulation, we demonstrate that the ferrimagnetic order with the Dirac node spontaneously emerges in a simple Kondo lattice model with Ising anisotropy. The realization will be beneficial for spintronics as a candidate for spin-current generator.
description: 5 pages, 4 figures, accepted for publication in Phys. Rev. Lett
Alignment and scaling of large-scale fluctuations in the solar wind
Creators: name: Wicks, Robert T.
name: Mallet, Alfred
name: Horbury, Timothy S.
name: Chen, Christopher H. K.
name: Schekochihin, Alexander A.
name: Mitchell, Jeremy J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Space Physics (physics.space-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We investigate the dependence of solar wind fluctuations measured by the Wind spacecraft on scale and on the degree of alignment between oppositely directed Elsasser fields. This alignment controls the strength of the non-linear interactions and, therefore, the turbulence. We find that at scales larger than the outer scale of the turbulence the Elsasser fluctuations become on average more anti-aligned as the outer scale is approached from above. Conditioning structure functions using the alignment angle reveals turbulent scaling of unaligned fluctuations at scales previously believed to lie outside the turbulent cascade in the `1/f range'. We argue that the 1/f range contains a mixture of non-interacting anti-aligned population of Alfvén waves and magnetic force-free structures plus a subdominant population of unaligned cascading turbulent fluctuations.
description: 5 pages, 4 figures
Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 82 Nr. 2 (2004)
Creators: name: Germania : Anzeiger Der Römisch-Germanischen Kommission Des Deutschen Archäologischen Instituts
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Titelei
Inhalt
Hellenistisch-frühkaiserzeitliche Reitersporen aus dem Zeusheiligtum von Olympia...351-380
Nichtsakrale Moordepots – dänische Beispiele aus der frühen Neuzeit...459-489
Einige Bemerkungen zum frühkaiserzeitlichen Prunkgrab von Kolokolin in der heutigen Ukraine...491-508
Eva Lenneis/Jens Lüning, Die altbandkeramischen Siedlungen von Neckenmarkt und Strögen...513-517
Wolfgang David, Studien zu Ornamentik und Datierung der bronzezeitlichen Depotfundgruppe Hajdúsámson-Apa-Ighiel-Zajta...522-525
Reinhard Jung, Kastanas. Ausgrabungen in einem Siedlungshügel der Bronze- und Eisenzeit Makedoniens 1975–1979...525-529
Pierre Moret/Fernando Quesada Sanz (Hrsg.), La guerra en el mundo ibérico y celtibérico...534-536
Felix Müller, Götter, Gaben, Rituale. Religion in der Frühgeschichte Europas...536-538
Ole Crumlin-Pedersen, The Skuldelev Ships I...544-549
Olof Sundqvist, Freyr’s offspring. Rulers and religion in ancient Svea society...549-542
Norbert Wand, Holzheim bei Fritzlar. Archäologie eines mittelalterlichen Dorfes...555-559
Heinz Grünert, Gustaf Kossinna (1858–1931). Vom Germanisten zum Prähistoriker...565-569
Two trapped particles interacting by a finite-ranged two-body potential in two spatial dimensions
Creators: name: Doganov, Rostislav A.
name: Klaiman, Shachar
name: Alon, Ofir E.
name: Streltsov, Alexej I.
name: Cederbaum, Lorenz S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine the problem of two particles confined in an isotropic harmonic trap, which interact via a finite-ranged Gaussian-shaped potential in two spatial dimensions. We derive an approximative transcendental equation for the energy and study the resulting spectrum as a function of the interparticle interaction strength. Both the attractive and repulsive systems are analyzed. We study the impact of the potential's range on the ground-state energy. Complementary, we also explicitly verify by a variational treatment that in the zero-range limit the positive delta potential in two dimensions only reproduces the non-interacting results, if the Hilbert space in not truncated. Finally, we establish and discuss the connection between our finite-range treatment and regularized zero-range results from the literature.
description: 19 pages, 5 figures, 1 table
Ole Crumlin-Pedersen, The Skuldelev Ships I
Creators: name: Ellmers, Detlev
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Rezension zu: Ole Crumlin-Pedersen, The Skuldelev Ships I. Topography, Archaeology, History, Conservation
and Display. With contributions by Erling Bondesen, Poul Jensen, Olaf Olsen,
Anette Hjelm Petersen und Kristiane Strætkvern. Ships and Boats of the North, Vol. 4,1.
The Viking Ship Museum, Roskilde 2002. ISBN 87-85180-467; ISSN 0901-778X.
360 Seiten mit 385 Abbildungen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 82 Nr. 2 (2004)
Nonlinear energy transfer in classical and quantum systems
Creators: name: Manevitch, Leonid
name: Kovaleva, Agnessa
Publisher: name: arXiv
Year: 2012
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Other Condensed Matter (cond-mat.other)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We investigate the effect of slowly-varying parameter on the energy transfer in a system of weakly coupled nonlinear oscillators, with special attention to a mathematical analogy between the classical energy transfer and quantum transitions. For definiteness, we consider a system of two weakly coupled oscillators with cubic nonlinearity, in which the oscillator with constant parameters is excited by an initial impulse, while a coupled oscillator with slowly-varying parameters is initially at rest. It is proved that the equations of the slow passage through resonance in this system are identical to equations of the nonlinear Landau-Zener (LZ) tunneling. Three types of dynamical behavior are distinguished, namely, quasi-linear, moderately nonlinear and strongly nonlinear. The quasi-linear systems exhibit a gradual energy transfer from the excited to the attached oscillator, while the moderately nonlinear systems are characterized by an abrupt transition from the energy localization on the excited oscillator to the localization on the attached oscillator. In the strongly nonlinear systems, the transition from the energy localization to strong energy exchange between the oscillators is revealed. A special case of the rapid irreversible energy transfer in the strongly nonlinear system with slowly-varying parameters is also investigated. The conditions providing different types of the dynamical behavior are derived. Explicit approximate solutions describing the transient processes in moderately and strongly nonlinear systems are suggested. Correctness of the constructed approximations is confirmed by numerical results.
DEITADO ETERNAMENTE EM BERÇO ESPLÊNDIDO
Creators: name: Santana, José Cláudio Pavão
name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 09 – vol. 07 – n. 57/2021
Quando Joaquim Duque-Estrada escreveu a letra do hino nacional e Francisco
Manoel da Silva a musicou, certamente não tinham em mente uma elegia à inação.
À evidência o esplendor da terra, com riquezas e belezas, foi o cenário da expressão tão bela em execução. A própria bandeira nacional evoca isso.
Werner E. Stöckli, Absolute und relative Chronologie des Früh- und Mittelneolithikums in Westdeutschland
Creators: name: Strien, Hans-Christoph
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Rezension zu: Werner E. Stöckli, Absolute und relative Chronologie des Früh- und Mittelneolithikums
in Westdeutschland (Rheinland und Rhein-Main-Gebiet). Basler Hefte zur Archäologie,
Band 1. Archäologie Verlag, Basel 2002. ISBN 3-905448-00-9. 142
Seiten mit 100 Abbildungen und 37 Tabellen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 83 Nr. 1 (2005)
Quantifying properties of ICM inhomogeneities
Creators: name: Zhuravleva, I.
name: Churazov, E.
name: Kravtsov, A.
name: Lau, E. T.
name: Nagai, D.
name: Sunyaev, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a new method to identify and characterize the structure of the intracluster medium (ICM) in simulated galaxy clusters. The method uses the median of gas properties, such as density and pressure, which we show to be very robust to the presence of gas inhomogeneities. In particular, we show that the radial profiles of median gas properties are smooth and do not exhibit fluctuations at locations of massive clumps in contrast to mean and mode properties. It is shown that distribution of gas properties in a given radial shell can be well described by a log-normal PDF and a tail. The former corresponds to a nearly hydrostatic bulk component, accounting for ~99% of the volume, while the tail corresponds to high density inhomogeneities. We show that this results in a simple and robust separation of the diffuse and clumpy components of the ICM. The FWHM of the density distribution grows with radius and varies from ~0.15 dex in cluster centre to ~0.5 dex at 2r_500 in relaxed clusters. The small scatter in the width between relaxed clusters suggests that the degree of inhomogeneity is a robust characteristic of the ICM. It broadly agrees with the amplitude of density perturbations in the Coma cluster. We discuss the origin of ICM density variations in spherical shells and show that less than 20% of the width can be attributed to the triaxiality of the cluster gravitational potential. As a link to X-ray observations of real clusters we evaluated the ICM clumping factor with and without high density inhomogeneities. We argue that these two cases represent upper and lower limits on the departure of the observed X-ray emissivity from the median value. We find that the typical value of the clumping factor in the bulk component of relaxed clusters varies from ~1.1-1.2 at r_500 up to ~1.3-1.4 at r_200, in broad agreement with recent observations.
description: 16 pages, 12 figure, accepted to MNRAS
title: Skin as Feeling Vessel
Creators: name: Muzaffar, Adiba
Publisher: name: Emily Carr University of Art and Design
Year: 2018
Subjects: subject: Skin
subject: Video art
subject: Multimedia works
subject: Performance art

description: This paper is the textual component for an ongoing visual arts MFA graduate thesis at Emily Carr University of Art and Design (Vancouver, BC). The document is structured to take up ideas around discomfort for the female body, through a phenomenological analysis of human skin as a feeling vessel. The media and installation work produced alongside this thesis is a cinematic visual inquiry to pose the question: where is feeling found? Socio-cultural, linguistic and psychological spaces are activated in a manner of thinking such that skin gets read as a border, drape, peel, screen, collector and container for feelings of discomfort, or dis-ease. As the chosen medium for this inquiry is the moving image, the thesis hones in on the ability of transference that film-as-body is capable of triggering. To locate subjectively internalized manifestations of dis-ease via the experience of embodiment is the broad ambition of the work.
Two for the Price of One: Lifting Separation Logic Assertions
Creators: name: Thamsborg, Jacob
name: Birkedal, Lars
name: Yang, Hongseok
Publisher: name: arXiv
Year: 2012
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: F.3.1

description: Recently, data abstraction has been studied in the context of separation logic, with noticeable practical successes: the developed logics have enabled clean proofs of tricky challenging programs, such as subject-observer patterns, and they have become the basis of efficient verification tools for Java (jStar), C (VeriFast) and Hoare Type Theory (Ynot). In this paper, we give a new semantic analysis of such logic-based approaches using Reynolds's relational parametricity. The core of the analysis is our lifting theorems, which give a sound and complete condition for when a true implication between assertions in the standard interpretation entails that the same implication holds in a relational interpretation. Using these theorems, we provide an algorithm for identifying abstraction-respecting client-side proofs; the proofs ensure that clients cannot distinguish two appropriately-related module implementations.
Titelei
Creators: name: Redaktion, Die
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 95 (2017)
Microscopic theory of magnetism in Sr3Ir2O7
Creators: name: Carter, Jean-Michel
name: Kee, Hae-Young
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: An intriguing idea of spin-orbit Mott insulator has been proposed to explain magnetic insulating behavior in various iridates. This scenario relies on the strength of the spin-orbit coupling being comparable to electronic correlations, and it is not a priori obvious whether this picture is valid for all iridates. In particular, Sr3Ir2O7 exhibits a small charge gap and magnetic moment compared to Sr2IrO4, questioning the validity of such hypothesis. To understand the microscopic mechanism for magnetism in Sr3Ir2O7, we construct a tight binding model taking into account the full t2g- orbitals, the staggered rotation of the local octahedra, and the bilayer structure. The bands near the Fermi level are mainly characterized by the total angular momentum Jeff = 1/2, except below the Γ point, supporting a reasonably strong spin-orbit coupling picture. A first order transition to a collinear antiferromagnet via multi-orbital Hubbard interactions is found within the mean field approximation. The magnetic moment jump at the transition is consistently smaller than Sr2IrO4, originated from the underlying band structure of a barely band insulator. Given the small charge gap and moment observed in Sr3Ir2O7, the system is close to a magnetic transition. A comparison to a spin-model is presented and connection to the Mott insulator is also discussed.
description: 5 pages, 4 figures
Einige bemerkenswerte Funde der Latene-Zeit im Allermündungsgebiet
Creators: name: Schünemann, Detlef
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 41 (1972): Nachrichten aus Niedersachsens Urgeschichte
Renormalization of the Coulomb blockade gap due to extended tunneling in nanoscopic junctions
Creators: name: Perfetto, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this work we discuss the combined effects of finite-range electron-electron interaction and finite-range tunneling on the transport properties of ultrasmall tunnel junctions. We show that the Coulomb blockade phenomenon is deeply influenced by the interplay between the geometry and the screening properties of the contacts. In particular if the interaction range is smaller than the size of the tunneling region a "weakly correlated" regime emerges in which the Coulomb blockade gap $\D$ is significantly reduced. In this regime $\D$ is not simply given by the conventional charging energy of the junction, since it is strongly renormalized by the energy that electrons need to tunnel over the extended contact.
description: 7 pages, 5 figures. To appear in Phys. Rev. B
Vorbericht über die Ausgrabung 1971 auf dem Grabfeld der jüngeren Bronze- und frühen Eisenzeit in der Heberbörde bei Altgandersheim, Kr. Gandersheim
Creators: name: Niquet, Franz
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 41 (1972): Nachrichten aus Niedersachsens Urgeschichte
Laux, Friedrich: Die Bronzezeit in der Lüneburger Heide
Creators: name: Busch, R.
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Laux, Friedrich: Die Bronzezeit in der Lüneburger Heide. Veröffentlichungen der urgeschichtlichen Sammlungen des Landesmuseums zu Hannover, Bd. 18. Hildesheim (Verlagsbuchhandlung August Lax) 1971. 278 S., 82 Taf., 33 Karten
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 41 (1972): Nachrichten aus Niedersachsens Urgeschichte
A narrow scalar resonance at 325 GeV?
Creators: name: Meissner, Krzysztof A.
name: Nicolai, Hermann
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose to identify the excess of events with four charged leptons at $E\sim 325\GeV$ seen by the CDF and CMS Collaborations with a new `sterile' scalar particle characterized by a very narrow resonance of the same height and branching ratios as the Standard Model Higgs boson, as predicted in the framework of the so-called Conformal Standard Model
description: 4 pages, 2 figures, text and references corrected
title: Painted tabletops of the late Middle Ages and Jheronimus Bosch’s (workshop) The Seven Deadly Sins and the Four Last Things
Creators: name: Kremb, Jens
Publisher: name: Heidelberg University Library
Year: 2016

description: Der folgende Artikel stellt die schriftliche Ausführung zum gleichnamigen Vortrag dar, der auf der vierten internationalen ‚Jheronimus Bosch Conference‘ 2016 in ‘s-Hertogenbosch präsentiert und im Tagungsband veröffentlicht wurde.
Dabei wird die sogenannte Todsündentafel (Prado/ Madrid) von Hieronymus Bosch/ Werkstatt vor dem Hintergrund der Diskussion um die eigentliche Funktion der Tafel und der Frage, ob es sich um eine Tischplatte handelt oder nicht, betrachtet. Neben der dazu nötigen Einordnung in die Objektgruppe und dem Vergleich mit den bemalten Tischplatten des Spätmittelalters wird zudem noch eine Neuinterpretation der Komposition der Malerei vorgeschlagen.
title: Manual for inspection of sprayers in use and PRITEAF, dedicated software for inspection of sprayers: success tools developed for the inspector’s training process in Spain
Creators: name: Gil, E.
name: Jiménez, A.
name: García Ramos, F. J.
Publisher: name: Julius Kühn-Institut
Year: 2015
Subjects: subject: inspection
subject: sprayers
subject: pesticide application
subject: SPISE
subject: harmonization
subject: training

description: Julius-Kühn-Archiv 449
description: Software dedicated to inspection of sprayers in use has been developed with the aim to facilitate the accomplishment of the mandatory requirements from EU Directive for a Sustainable Use of Pesticides, specifically those concerning the inspection of sprayers in use. The software- PRITEAF- has been developed according to the European standards EN 13790 concerning mandatory inspection of sprayers in use and it is ready to be used not only for inspectors among all the EU members but also for training purposes all over the world. The software is ready to be on line –after minor arrangements - with the recently approved new international inspection standards ISO 16122, and its main features are: to facilitate the sprayer’s inspection procedure, to manage, storage and transfer all the information to the official bodies in charge of the procedure, and to be used as a support tool to improve the training activities during the process, according the European Directive 2009/128/CE for a Sustainable Use of Pesticides. For this purpose, PRITEAF has been designed for three different types of users: inspection teams, inspection workshops and regional authorities. PRITEAF has been developed using the File Maker Pro package and it is composed of three databases – inspections activities, database on sprayers already inspected, and owners or official responsible for the agricultural activity. The software is completed with specific modules for data acquisition and for generating official reports, files and communications. For its implementation, PRITEAF uses specific hardware (a PC server, a tablet and local Wi-Fi) necessary to ensure proper data collection in the field. After data collection, the software generates an official inspection report and an inspection certificate, as required by law. Using PRITEAF reduces inspection time by 33% compared to traditional sprayer inspection systems. Following its validation, PRITEAF has been made available to regional authorities and inspection workshops across Spain, and is also being used to train all inspection teams in the country. More than 800 inspectors have been officially trained using the developed software, resulting in an interesting tool to improve the daily activities to be executed in all the inspection’s workshops in Europe.
FIZIKA DARSLARIDA RAQAMLI TA'LIM MUHITLARINI QO'LLASH
Creators: name: Kaypnazarov, S.G.
Publisher: name: Zenodo
Year: 2025

description: Hozirgi kunda ko'plab maktablar kompyuter sinflari bilan jihozlangan va o'qituvchilarga darsda raqamli texnologiyalardan foydalanish imkoniyati paydo bo'ldi. Ta'lim jarayonida kompyuterdan foydalanish bolaning qiziqishi va bilishga bo'lgan intilishini rag'batlantiradigan muhitni yaratishga imkon beradi. Kompyuter o'qituvchi va o'quvchi o'rtasidagi elektron vositachiga aylanmoqda. U ta'lim jarayonini jadallashtirish, uni yanada yorqin va ko'rgazmali qilish, har bir o'quvchi uchun individual tezlikda o'qitish imkoniyatini beradi, shuningdek, o'qituvchini bir qator zerikarli vazifalardan, masalan, doskada cheksiz yozishlar, elementar ko'nikma va malakalarni ishlab chiqish, bilimlarni tekshirish kabi ishlardan ozod qiladi.
Generation of maximally entangled states with sub-luminal Lorentz boost
Creators: name: Palge, Veiko
name: Dunningham, Jacob
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent work has studied entanglement between the spin and momentum components of a single spin-1/2 particle and showed that maximal entanglement is obtained only when boosts approach the speed of light. Here we extend the boost scenario to general geometries and show that, intriguingly, maximal entanglement can be achieved with boosts less than the speed of light. Boosts approaching the speed of light may even decrease entanglement. We also provide a geometric explanation for this behavior.
Christiana Elisabeth Later, Die Sapropelitfunde aus dem Oppidum von Manching
Creators: name: Joachim, Hans-Eckart
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Christiana Elisabeth Later, Die Sapropelitfunde aus dem Oppidum von Manching. Die Ausgrabungen in Manching, Band 19. Verlag Dr. Ludwig Reichert,
Wiesbaden 2014. 228 Seiten mit 93 Abbildungen und 16 Tafeln.
description: Bonner Jahrbücher, Bd. 214.2014(2015): Bonner Jahrbücher
DIÁLOGO DO CIENTISTA DOS DIAS ATUAIS
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 09 – vol. 04 – n. 32/2021
A manhã ensolarada e o enclausuramento forçado foram motivos suficientes para que um cientista e um (quase) leigo – amigos de escola – saíssem para caminhar.
A alegria de se encontrarem foi visível. Literalmente visível, porque as máscaras esconderam os sorrisos, mas o brilho nos olhares traduziu o carinho de ambos. O olhar não mente.
title: Perfformances evaluation of different vertical patternators
Creators: name: Allochis, D.
name: Balsari, P.
name: Tamagnone, M.
name: Marucco, P.
name: Val, P.
name: Bozzer, C.
Publisher: name: Julius Kühn-Institut
Year: 2015

description: Julius-Kühn-Archiv 449
description: Assessment of vertical spray profile is one of the main steps to adjust sprayers for bush and tree crops, as it allows to verify that the spray plume matches the target canopy profile. The equipment used for assessing the vertical spray profile is typically a vertical test bench or patternator. Even if the sprayer adjustment is recommended in EU Directive 128/2009/EC, the use of vertical test benches is only optional in the procedures for the inspection of air-assisted sprayers in use currently adopted in the EU Member States, that mainly refer to EN 13790- 2 and to new ENISO FDIS 16122-3.  At present, in the International Standards, there is not any indication of the minimum requirements that the vertical test benches have to fulfill, neither in terms of constructive characteristics or of functional parameters.  For this reason, the types of vertical test benches used in the test stations, even if are based on the same principle of functioning (presence of a vertical surface to collect the whole liquid sprayed and of graduated tubes for measuring it), present some differences in terms of structure, mainly related to collectors types and their disposal along the test bench. Two main categories of vertical test benches can be identified: 1) equipped with a continuous collecting wall; 2) equipped with a discrete number of separated collectors. In each category it is then possible to have different models, depending on the size, materials, number and position of the collectors. With the main purpose to define methodology and criteria for the vertical patternator evaluation, specific performance tests were carried out in laboratory using four different types of vertical test benches and a horizontal test bench complying with ISO 5682-1 requirements. Spray recovery capacity and reproducibility of results, both in terms of recovery and of spray profile were assessed using different droplet sizes, air speeds and air directions. Results of these first experimental trials pointed out that the criteria applied to assess the performance of the vertical test benches seemed able to discriminate the differences between the models tested. Amount of spray recovery was mostly affected by droplets size rather than by air velocity. Spray profile detected on the different vertical patternator types examined resulted generally similar. These first experimental results could constitute a basis for the development of a SPISE advice about test methodology and requirements for vertical test benches.
Magnetic Dipole and Electric Quadrupole Transitions in the Trivalent Lanthanide Series: Calculated Emission Rates and Oscillator Strengths
Creators: name: Dodson, Christopher M.
name: Zia, Rashid
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Given growing interest in optical-frequency magnetic dipole transitions, we use intermediate coupling calculations to identify strong magnetic dipole emission lines that are well suited for experimental study. The energy levels for all trivalent lanthanide ions in the 4fn configuration are calculated using a detailed free ion Hamiltonian, including electrostatic and spin-orbit terms as well as two-body, three-body, spin-spin, spin-other-orbit, and electrostatically correlated spin-orbit interactions. These free ion energy levels and eigenstates are then used to calculate the oscillator strengths for all ground-state magnetic dipole absorption lines and the spontaneous emission rates for all magnetic dipole emission lines including transitions between excited states. A large number of strong magnetic dipole transitions are predicted throughout the visible and near-infrared spectrum, including many at longer wavelengths that would be ideal for experimental investigation of magnetic light-matter interactions with optical metamaterials and plasmonic antennas.
description: 11 page manuscript including 4 figures and 4 tables; 75 page ancillary supplement including 26 supplemental tables; v2 minor improvements, references added, supplemental material updated, Phys. Rev. B version
Full alignment of colloidal objects by programmed forcing
Creators: name: Moths, Brian
name: Witten, T. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: By analysis and simulation we demonstrate two methods for achieving complete orientational alignment of a set of identical, asymmetric colloidal objects dispersed randomly in a fluid. Sedimentation or electrophoresis in a constant field can lead to partial alignment, in which the objects rotate about a common body axis, but the phases of rotation for these objects are random. We show that this phase disorder can be removed by two forms of programmed forcing. First, simply alternating the forcing between two directions reduces the statistical entropy of the orientation arbitrarily. Second, addition of a small rotating component to the applied field in analogy to magnetic resonance can lead to phase locking of the objects' orientation. We identify conditions for alignment of a broad class of generic objects and discuss practical limitations.
description: 5 pages, 2 figures
A free boundary problem arising from segregation of populations with high competition
Creators: name: Quitalo, Veronica
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this work, we show how to obtain a free boundary problem as the limit of a fully non linear elliptic system of equations that models population segregation (Gause-Lotka-Volterra type). We study the regularity of the solutions. In particular, we prove Lipschitz regularity across the free boundary. The problem is motivated by the work done by Caffarelli, Karakhanyan and Fang-Hua Lin for the linear case.