cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On information rates over a binary input channel
Creators: name: Peleg, Michael
name: Michaeli, Tomer
name: Shamai, Shlomo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We study communication systems over band-limited Additive White Gaussian Noise (AWGN) channels in which the transmitter output is constrained to be symmetric binary (bi-polar). In this work we improve the original Ozarov-Wyner-Ziv (OWZ) lower bound on capacity by introducing new achievability schemes with two advantages over the studied OWZ scheme which is based on peak-power constrained pulse-amplitude modulation. Our schemes achieve a moderately improved information rate and do so with much less sign transitions of the binary signal. The gap between the known upper-bound based on spectral constrains of bi-polar signals and our achievable lower bound is reduced to 0.93 bits per Nyquist interval at high SNR.
description: in IEEE Open Journal of the Communications Society, 2021
title: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 50 Nr. 4 (2021)
title: Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege
titleType: AlternativeTitle
Creators: name: Denkmalpflege In Baden-Württemberg – Nachrichtenblatt Der Landesdenkmalpflege
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2021

description: Die Landesdenkmalpflege Personalia...312-316 Neuerscheinungen...310-312 Mitteilungen...309-310 Zehn hölzerne Fallstufen...302-308 St. Peter- und Paul in Reichenau-Niederzell...296-301 Eisengusskunst auf der Ostalb...290-295 Zwei verbundene Glasscheiben – Chance oder Risiko?...284-289 Repräsentationsarchitektur im Vaubanschen Festungsbau...278-283 Hochwassermarke, Obelisk und Pegelhaus...272-277 „Wohnen in und mit dem Denkmal“...264-271 Das Herzstück ganz aus Beton...258-263 Orgeln heute in Baden-Württemberg...251-257 Ein seltener Schatz der Benediktinerinnen...245-250 HyMoBioStrategie...240-244 40 Jahre Taucharchäologie...234-239 Editorial...233 Inhalt
A Jet-like Outflow toward the High-Mass (Proto)stellar Object IRAS 18566+0408
Creators: name: Zhang, Qizhou
name: Sridharan, T. K.
name: Hunter, Todd R.
name: Chen, Yuan
name: Beuther, Henrik
name: Wyrowski, Friedrich
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We performed interferometric observations of a high-mass protostellar candidate IRAS 18566+0408 in the \nh3 (J,K)=(1,1), (2,2) and (3,3) inversion transitions, the SiO J=2-1 and HCN J=1-0 lines, and the 43 and 87 GHz continuum emission using the VLA and OVRO. The 87 GHz continuum emission reveals two continuum peaks MM-1 and MM-2 along a molecular ridge. The dominant peak MM-1 coincides with a compact emission feature at 43 GHz, and arises mostly from the dust emission. For dust emissivity index $β$ of 1.3, the masses in the dust peaks amount to 70 \msun for MM-1, and 27 \msun for MM-2. Assuming internal heating, the central luminosities of MM-1 and MM-2 are $6 \times 10^4$ and $8 \times 10^3$ \lsun, respectively. The SiO emission reveals a well collimated outflow emanating from MM-1. The jet-like outflow is also detected in \nh3 at velocities similar to the SiO emission. The outflow, with a mass of 27 \msun, causes significant heating in the gas to temperatures of 70 K, much higher than the temperature of $\lsim 15$ K in the extended core. Compact ($< 3''$) and narrow line ($<1.5$ \kms-1) \nh3 (3,3) emission features are found associated with the outflow. They likely arise from weak population inversion in \nh3 similar to the maser emission. Toward MM-1, there is a compact \nh3 structure with a linewidth that increases from 5.5 \kms-1 FHWM measured at 3$''$ resolution to 8.7 \kms-1\ measured at 1$''$ resolution. This linewidth is much larger than the FWHM of $
description: 19 pages, 9 figures. Accepted for publication in Astronomy and Astrophysics
Transport, magnetic and superconducting properties of RuSr2RCu2O8 (R= Eu, Gd) doped with Sn
Creators: name: Pozek, M.
name: Kupcic, I.
name: Dulcic, A.
name: Hamzic, A.
name: Paar, D.
name: Basletic, M.
name: Tafra, E.
name: Williams, G. V. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Ru{1-x}Sn{x}Sr2EuCu2O8 and Ru{1-x}Sn{x}Sr2GdCu2O8 have been comprehensively studied by microwave and dc resistivity and magnetoresistivity and by the dc Hall measurements. The magnetic ordering temperature T_m is considerably reduced with increasing Sn content. However, doping with Sn leads to only slight reduction of the superconducting critical temperature T_c accompanied with the increase of the upper critical field B_c2, indicating an increased disorder in the system and a reduced scattering length of the conducting holes in CuO2 layers. In spite of the increased scattering rate, the normal state resistivity and the Hall resistivity are reduced with respect to the pure compound, due to the increased number of itinerant holes in CuO2 layers, which represent the main conductivity channel. Most of the electrons in RuO2 layers are presumably localized, but the observed negative magnetoresistance and the extraordinary Hall effect lead to the conclusion that there exists a small number of itinerant electrons in RuO$_2$ layers that exhibit colossal magnetoresistance.
description: 10 pages, 9 figures
Asymmetric arms maximise visibility in hot-electron interferometers
Creators: name: Barratt, Clarissa J.
name: Ryu, Sungguen
name: Clark, Lewis A.
name: Sim, H. -S.
name: Kataoka, Masaya
name: Emary, Clive
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider theoretically an electronic Mach-Zehnder interferometer constructed from quantum Hall edge channels and quantum point contacts, fed with single electrons from a dynamic quantum dot source. By considering the energy dependence of the edge-channel guide centres, we give an account of the phase averaging in this set up that is particularly relevant for the short, high-energy wavepackets injected by this type of electron source. We present both analytic and numerical results for the energy-dependent arrival time distributions of the electrons and also give an analysis of the delay times associated with the quantum point contacts and their effects on the interference patterns. A key finding is that, contrary to expectation, maximum visibility requires the interferometer arms to be different in length, with an offset of up to a micron for typical parameters. By designing interferometers that incorporate this asymmetry in their geometry, phase-averaging effects can be overcome such that visibility is only limited by other incoherent mechanisms.
description: 12 pages; 6 figures
Robust external spin hyperpolarization of quadrupolar nuclei enabled by strain
Creators: name: Chen, Lu
name: Jiang, Jiawen
name: Plenio, Martin B.
name: Chen, Qiong
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a theoretical study, we investigate the spin dynamics of interacting nitrogen-vacancy (NV) centers and quadrupolar I = 3/2 nuclear spins, specifically 11B spins in hexagonal boron nitride (h-BN) nanosheets located near the microdiamond surface. We demonstrate the possibility of obtaining external spin-polarization by magnetic-field sweeps across the level anticrossings around zero-field. To achieve this, we leverage crystal strains to establish a polarization transfer mechanism that remains robust against variations in NV orientation, crystal strain inhomogeneity, and electron-nuclear effective couplings. These results pave the way for hyperpolarization of spins in nanomaterials near the diamond surface without experiencing polarization loss to intrinsic nuclear spin-1/2 species, such as 13C and 1H nuclear spins in diamond. The 11B spins in h-BN nanosheets, with their extended relaxation time and large surface area, present a promising alternative for relayed nuclear polarization to the liquid phase and for the development of quantum simulators based on surface nuclear spins.
description: 15pages,11figures
Experimental Realization of Polarization Qutrits from Non-Maximally Entangled States
Creators: name: Vallone, Giuseppe
name: Pomarico, Enrico
name: Mataloni, Paolo
name: De Martini, Francesco
name: Barbieri, Marco
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Based on a recent proposal [Phys. Rev. A 71, 062337 (2005)], we have experimentally realized two photon polarization qutrits by using non-maximally entangled states and linear optical transformations. By this technique high fidelity mutually unbiased qutrits are generated at a high brilliance level.
description: RevTex, 8 pages, 6 figures
Repräsentationsarchitektur im Vaubanschen Festungsbau
Creators: name: Cremer, Folkhard
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2021

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 50 Nr. 4 (2021)
Web3 and the State: Indian state's redescription of blockchain
Creators: name: Sarkar, Debarun
name: Arora, Cheshta
Publisher: name: arXiv
Year: 2024
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: The article closely reads a discussion paper by the National Institution for Transforming India (NITI) Aayog and a strategy paper by the Ministry of Electronics and Information Technology (MeitY) advocating non-financial use cases of blockchain in India. By noting the discursive shift from transparency to trust to adjustably transparent enacted in these two documents, and consequently the Indian state's redescription of blockchain, the paper foregrounds how blockchain systems are being designated as "decentral" but have recentralizing effects where the state reinvents and re-establishes itself as an intermediary. The paper illustrates how discursive shifts concerning trust, transparency, (de)centralization and (dis)intermediation are crucial sites for investigating redescriptions of emerging sociotechnical systems.
Hochwassermarke, Obelisk und Pegelhaus
Creators: name: Dautel, Isolde
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2021

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 50 Nr. 4 (2021)
A remark on helical waveguides
Creators: name: Exner, Pavel
name: Fraas, Martin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Motivated by a proposal to create an optical helix-shaped waveguides for cold atoms and molecules, we discuss local perturbations which can create bound states in such a setting. This is known about a local slowdown of the twist; we show that a similar effect can result from a local tube protrusion or a change of the helix radius in correlation with its pitch angle.
description: LaTeX, 12 pages
The Mitsui Zaibatsu Tenkō, 1932-1936 : a diversified analysis of the multi-level reforms
Creators: name: Lynn, Hyung Gu
Publisher: name: University of British Columbia
Year: 2010

description: In the prewar Japanese economy, the most dominant business entity was the Mitsui zaibatsu. This diversified, multi-corporate conglomerate was successful in business terms and in influencing government decision-making. In March 1932, the head executive of Mitsui, Dan Takuma, was assassinated amidst the waves of anti-zaibatsu reactions and the rise of ultranationalism. The assassination gave rise to the Mitsui zaibatsu tenkō (conversion) of 1932-1936, a series of reforms conducted by Dan's successor, Ikeda Seihin, which were intended to fulfill the public relations, business and political needs and objectives. Previous studies on the Mitsui tenkō have focused most of their attention on one or two of the specific aspects, such as the business angle or the political implications. The six tenkō policies were designed to meet at least three objectives, and reflected the influence of Mitsui's historical precedents, long-term trends and developments, and abilities and predispositions of Ikeda. Therefore, the specialized approaches have accumulated to give a somewhat distorted view of the Mitsui tenkō. This paper is an attempt to analyze the six tenkō policies in all their implications and significances, through a multi-layered approach which involves an examination of the internal and external environment of 1932-1936, a chronological comparison with past precedents and influencing factors in Mitsui's history, and a comparison with other zaibatsu and Western big business. The data available indicates that the Mitsui tenkō was caused primarily by external pressures, as opposed to internal financial difficulties. The six policies were, for the most part, dependent on precedents and Ikeda's abilities and experiences. The six policies were influenced by precedents in Mitsui's past, and by Ikeda's assessment of the external environment. Although the specific strategies were effective in meeting the three objectives of (1) improving public image; (2) maintaining growth while retaining maximum ownership of subsidiaries; and (3) reorganizing political connections, as the objectives themselves were incompatible with the long-term self-interest of the firm when sustained under the prevailing external environment, the success of the strategies paved the way for the eventual breakdown of the zaibatsu holding company system. In addition, from the analysis of the tenkō, evidence and patterns were derived which indicated the tendency to lump all zaibatsu together, to treat 1932-1940 as one period, to exaggerate the differences between the objectives of Western and Japanese big business, and to downplay the role of the individual, were in varying degrees misleading for the further study of Mitsui and Japanese business history in general.
„Wohnen in und mit dem Denkmal“
Creators: name: Schumann, Patrick
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2021

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 50 Nr. 4 (2021)
Network analysis for the steady-state thermodynamic uncertainty relation
Creators: name: Utsumi, Yasuhiro
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We perform network analysis of a system described by the master equation to estimate the lower bound of the steady-state current noise, starting from the level 2.5 large deviation function and using the graph theory approach. When the transition rates are uniform, and the system is driven to a non-equilibrium steady state by unidirectional transitions, we derive a noise lower bound, which accounts for fluctuations of sojourn times at all states and is expressed using mesh currents. This bound is applied to the uncertainty in the signal-to-noise ratio of the fluctuating computation time of a schematic Brownian computation plus reset process described by a graph containing one cycle. Unlike the mixed and pseudo-entropy bounds that increase logarithmically with the length of the intended computation path, this bound depends on the number of extraneous predecessors and thus captures the logical irreversibility.
description: 10 pages, 2 figures (+Supplemental Material: 4 pages, 1 figure)
Verso una pedagogia del lavoro: spunti di riflessione per pensare il rapporto tra formazione e lavoro
Creators: name: Palma, Manuela Laura
Publisher: name: Ricerche di Pedagogia e Didattica. Journal of Theories and Research in Education
Year: 2018
Subjects: lavoro; formazione; organizzazione; pedagogia del lavoro; dispositivo

description: Negli ultimi decenni il lavoro ha modificato completamente la propria configurazione: sono cambiate le pratiche lavorative, le tipologie di lavoro, le forme contrattuali, il significato associato al lavoro, la sua relazione con il tema dell’identità. Quale contributo riconoscere allora alla pedagogia al di là delle declinazioni più immediate che ribadiscono genericamente il valore e la centralità del “fare formazione”? A quali interrogativi la pedagogia permette di rispondere sul tipo di formazione da promuovere e sulle modalità tramite cui farla? L’intervento approfondisce tre possibili declinazioni del rapporto tra formazione e lavoro: l’educazione al lavoro, l’educazione sul lavoro e l’educazione attraverso il lavoro, riconoscendo quali contributi una pedagogia del lavoro possa offrire per supportare soggetti e organizzazioni nel pensarsi alla luce dei recenti cambiamenti che hanno profondamente trasformato la realtà occupazionale.
description: Ricerche di Pedagogia e Didattica. Journal of Theories and Research in Education, V. 13, N. 3 (2018)
Electron Pair Resonance in the Coulomb Blockade
Creators: name: Sela, Eran
name: Sim, H. S.
name: Oreg, Yuval
name: Raikh, M. E.
name: von Oppen, Felix
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study many-body corrections to the cotunneling current via a localized state with energy $ε_d$ at large bias voltages $V$. We show that the transfer of {\em electron pairs}, enabled by the Coulomb repulsion in the localized level, results in ionization resonance peaks in the third derivative of the current with respect to $V$, centered at $eV=\pm 2ε_d/3$. Our results predict the existence of previously unnoticed structure within Coulomb-blockade diamonds.
description: 5 pages, 4 figures
Herzstück ganz aus Beton
Creators: name: Buchenau, Geraldine
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2021

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 50 Nr. 4 (2021)
Paired fermions in strong magnetic fields and daughters of even-denominator Hall plateaus
Creators: name: Yutushui, Misha
name: Hermanns, Maria
name: Mross, David F.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent quantum Hall experiments have observed `daughter states' next to several plateaus at half-integer filling factors in various platforms. These states were first proposed based on model wavefunctions for the Moore-Read state by Levin and Halperin. We show that these daughters and their parents belong to an extensive family tree that encompasses all pairing channels and permits a unified description in terms of weakly interacting composite fermions. Each daughter represents a bosonic integer quantum Hall state formed by composite-fermion pairs. The pairing of the parent dictates an additional number of filled composite-fermion Landau levels. We support our field-theoretic composite-fermion treatment by using the K-matrix formalism, analysis of trial wavefunctions, and a coupled-wire construction. Our analysis yields the topological orders, quantum numbers, and experimental signatures of all daughters of paired states at half-filling and `next-generation' even-denominators. Crucially, no two daughters share the same two parents. The unique parentage implies that Hall conductance measurements alone could pinpoint the topological order of even-denominator plateaus. Additionally, we propose a numerically suitable trial wavefunction for one daughter of the SU(2)$_2$ topological order, which arises at filling factor $ν=\frac{6}{11}$. Finally, our insights explain experimentally observed features of transitions in wide-quantum wells, such as suppression of the Jain states with the simultaneous development of half-filled and daughter states.
description: 11 pages, 4 figures
Excitons in long molecular chains near the reflecting interface
Creators: name: Gartstein, Yu. N.
name: Agranovich, V. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We discuss coherent exciton-polariton states in long molecular chains that are formed due to the interaction of molecular excitations with both vacuum photons and surface excitations of the neighboring reflecting substrate. The resonance coupling with surface plasmons (or surface polaritons) of the substrate can substantially contribute to the retarded intermolecular interactions leading to an efficient channel of the decay of one-dimensional excitons with small momenta via emission of surface excitations. The interface also modifies the radiative decay of excitons into vacuum photons. In an idealized system, excitons with higher momenta would not emit photons nor surface waves. For a dissipative substrate, additional exciton quenching takes place owing to Joule losses as the electric field of the exciton polarization penetrates the substrate. We discuss how these effects depend on the polarization of molecular excitations, their frequency and on the distance of the chain from the substrate.
Orgeln heute in Baden-Württemberg
Creators: name: Zimmermann, Markus
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2021

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 50 Nr. 4 (2021)
seltener Schatz der Benediktinerinnen
Creators: name: Ansel, Jochen
name: Hecht-Lang, Brigitte
name: Lang, Johanna
name: Tomanek, Sigrid
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2021

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 50 Nr. 4 (2021)
On Magnetic Interlayer Coupling and Proximity Effect in a La$_{0.67}$Ca$_{0.33}$MnO$_3$(10 nm)/YBa$_2$Cu$_3$O$_7$(10 nm) Superlattice
Creators: name: Freeland, J. W.
name: Chakhalian, J.
name: Cristiani, G.
name: Habermeier, H. -U.
name: Keimer, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a study of interlayer coupling and proximity effects in a La$_{0.66}$Ca$_{0.33}$MnO$_3$(10 nm)/YBa$_2$Cu$_3$O$_7$(10 nm) superlattice. Using element-sensitive x-ray probes, the magnetic state of Mn can be probed without seeing the strong diamagnetism of the superconductor, which makes this approach ideal to study changes in the magnetic properties across the superconducting transition. By a combined experiment using {\it in situ} transport measurements during polarized soft x-ray measurements, we were able to see no noticeable influence of the superconducting state on the magnetic properties and no evidence for magnetic coupling across a 10 nm YBCO layer.
description: 4 pages, submitted to Applied Physics Letters
HyMoBioStrategie
Creators: name: Ebersbach, Renate
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2021

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 50 Nr. 4 (2021)
Engineering of Hong-Ou-Mandel interference with effective noise
Creators: name: Siltanen, Olli
name: Kuusela, Tom
name: Piilo, Jyrki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Hong-Ou-Mandel effect lies at the heart of quantum interferometry, having multiple applications in the field of quantum information processing and no classical counterpart. Despite its popularity, only a few works have considered polarization-frequency interaction within the interferometer. In this paper, we fill this gap. Our system of interest is a general biphoton polarization state that experiences effective dephasing noise by becoming entangled with the same photons' frequency state, as the photons propagate through birefringent media. The photons then meet at a beam splitter, where either coincidence or bunching occurs, after which the polarization-frequency interaction continues on the output paths. Alongside performing extensive theoretical analysis on the coincidence probability and different polarization states, we outline multiple interesting applications that range from constructing Bell states to an alternative delayed choice quantum eraser.
description: 13 pages, 7 figures
Binary black hole mergers from Population III star clusters
Creators: name: Mestichelli, Benedetta
name: Mapelli, Michela
name: Torniamenti, Stefano
name: Sedda, Manuel Arca
name: Branchesi, Marica
name: Costa, Guglielmo
name: Iorio, Giuliano
name: Santoliquido, Filippo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Binary black holes (BBHs) born from the evolution of Population III (Pop. III) stars are one of the main high-redshift targets for next-generation ground-based gravitational-wave (GW) detectors. Their predicted initial mass function and lack of metals make them the ideal progenitors of black holes above the upper edge of the pair-instability mass gap, i.e. with a mass higher than $\approx{}134$ (241) M$_\odot$ for stars that become (do not become) chemically homogeneous during their evolution. Here, we investigate the effects of cluster dynamics on the mass function of BBHs born from Pop. III stars, by considering the main uncertainties on Pop. III star mass function, orbital properties of binary systems, star cluster's mass and disruption time. In our dynamical models, at least $\sim$5% and up to 100% BBH mergers in Pop. III star clusters have primary mass $m_1$ above the upper edge of the pair-instability mass gap. In contrast, only $\lesssim {} 3$% isolated BBH mergers have primary mass above the gap, unless their progenitors evolved as chemically homogeneous stars. The lack of systems with primary and/or secondary mass inside the gap defines a zone of avoidance with sharp boundaries in the primary mass - mass ratio plane. Finally, we estimate the merger rate density of BBHs and, in the most optimistic case, we find a maximum of $\mathcal{R}\approx200\,{\rm Gpc^{-3}\,yr^{-1}}$ at $z\sim15$ for BBHs formed via dynamical capture. For comparison, the merger rate density of isolated Pop. III BBHs is $\mathcal{R}\leq{}10\,{\rm Gpc^{-3}\,yr^{-1}}$, for the same model of Pop. III star formation history.
description: 17 pages, 12 figures, 4 tables. Comments welcome
CMB temperature anisotropies from third order gravitational perturbations
Creators: name: D'Amico, G.
name: Bartolo, N.
name: Matarrese, S.
name: Riotto, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we present a complete computation of the Cosmic Microwave Background (CMB) anisotropies up to third order from gravitational perturbations accounting for scalar, vector and tensor perturbations. We then specify our results to the large scale limit, providing the evolution of the gravitational potentials in a flat universe filled with matter and cosmological constant which characterizes the Integrated Sachs-Wolfe effect. As a byproduct in the large scale approximation we are able to give non-perturbative solutions for the photon geodesic equations. Our results are the first step to provide a complete theoretical prediction for cubic non-linearities which are particularly relevant for characterizing the level of non-Gaussianity in the CMB through the detection of the four-point angular connected correlation function (trispectrum). For this purpose we also allow for generic initial conditions due to primordial non-Gaussianity.
description: 19 pages, LateX file; typos corrected; some corrections made and several consistency checks performed regarding Eqs.(2.18); (2.28)-(2.29) and Eqs.(3.8)-(3.24) and Eq.(4.2). Version accepted for publication in JCAP
Shedding Light on Dark Matter and Neutrino Interactions from Cosmology
Creators: name: Paul, Arnab
name: Chatterjee, Arindam
name: Ghoshal, Anish
name: Pal, Supratik
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In $\rmΛ$CDM cosmology, Dark Matter (DM) and neutrinos are assumed to be non-interacting. However, it is possible to have scenarios, where DM-neutrino interaction may be present, leading to scattering of DM with neutrinos and annihilation of DM into neutrinos. We investigate the viability of such scenarios in the light of cosmological data by making use of the Planck 2018 dataset (high-l TT+TE+EE, low-l TT, low-l EE) and constrain these processes in the light of the same. We also discuss a viable particle DM model where DM-neutrino interaction is present, and map the constraints obtained to the parameter space of the model.
description: Accepted in JCAP
Finite-size corrections to the energy spectra of gapless one-dimensional systems in the presence of boundaries
Creators: name: Liu, Yifan
name: Shimizu, Haruki
name: Ueda, Atsushi
name: Oshikawa, Masaki
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present the finite-size scaling theory of one-dimensional quantum critical systems in the presence of boundaries. While the finite-size spectrum in the conformal limit, namely of a conformal field theory with conformally invariant boundary conditions, is related to the dimensions of boundary operators by Cardy, the actual spectra of lattice models are affected by both bulk and boundary perturbations and contain non-universal boundary energies. We obtain a general expression of the finite-size energy levels in the presence of bulk and boundary perturbations. In particular, a generic boundary perturbation related to the energy-momentum tensor gives rise to a renormalization of the effective system size. We verify our field-theory formulation by comparing the results with the exact solution of the critical transverse-field Ising chain and with accurate numerical results on the critical three-state Potts chain obtained by Density-Matrix Renormalization Group.
description: 33 pages, 4 figures, submission to SciPost
Thermodynamic uncertainty relation and thermodynamic speed limit in deterministic chemical reaction networks
Creators: name: Yoshimura, Kohei
name: Ito, Sosuke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We generalize thermodynamic uncertainty relation (TUR) and thermodynamic speed limit (TSL) for deterministic chemical reaction networks (CRNs). The scaled diffusion coefficient derived by considering the connection between macroscopic CRNs and mesoscopic CRNs plays an essential role in our results. The TUR shows that the product of the entropy production rate and the ratio of the scaled diffusion coefficient to the square of the rate of concentration change is bounded below by 2. The TSL states a trade-off relation between speed and thermodynamic quantities, the entropy production and the time-averaged scaled diffusion coefficient. The results are proved under the general setting of open and non-ideal CRNs.
description: 9 pages, 4 figures
Measurement of Upper Limits for Upsilon --> gamma + R Decays
Creators: name: Rosner, J. L
name: Collaboration, CLEO
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Motivated by concerns regarding possible two-body contributions to the recently-measured inclusive Upsilon(nS)->gamma+X (n=1, 2, 3) direct photon spectra, we report on a new study of exclusive radiative decays of these narrow Upsilon(nS) resonances into two-body final states R+gamma, with R a narrow resonant hadronic state decaying into four or more charged particles. Such two-body processes are not explicitly addressed in the extant theoretical frameworks used to calculate the inclusive direct photon spectra, and must also be explicitly inserted into Monte Carlo simulations. Using data collected from the CLEO III detector at the Cornell Electron Storage Ring, we present upper limits of order 0.01 per cent for such bottomonium two-body decays as a function of the R recoil mass.
description: 15 pages postscript,also available through http://www.lns.cornell.edu/public/CLNS/2006/, Submitted to PRD
40 Jahre Taucharchäologie
Creators: name: Goldhammer, Julia
name: Köninger, Joachim
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2021

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 50 Nr. 4 (2021)
Mass-Radius Relationships for Solid Exoplanets
Creators: name: Seager, S.
name: Kuchner, M.
name: Hier-Majumder, C.
name: Militzer, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use new interior models of cold planets to investigate the mass-radius relationships of solid exoplanets, considering planets made primarily of iron, silicates, water, and carbon compounds. We find that the mass-radius relationships for cold terrestrial-mass planets of all compositions we considered follow a generic functional form that is not a simple power law: $\log_{10} R_s = k_1 + 1/3 \log_{10}(M_s) - k_2 M_s^{k_3}$ for up to $M_p \approx 20 M_{\oplus}$, where $M_s$ and $R_s$ are scaled mass and radius values. This functional form arises because the common building blocks of solid planets all have equations of state that are well approximated by a modified polytrope of the form $ρ= ρ_0 + c P^n$. We find that highly detailed planet interior models, including temperature structure and phase changes, are not necessary to derive solid exoplanet bulk composition from mass and radius measurements. For solid exoplanets with no substantial atmosphere we have also found that: with 5% fractional uncertainty in planet mass and radius it is possible to distinguish among planets composed predominantly of iron or silicates or water ice but not more detailed compositions; with $\sim$~5% uncertainty water ice planets with $\gtrsim 25%$ water by mass may be identified; the minimum plausible planet size for a given mass is that of a pure iron planet; and carbon planet mass-radius relationships overlap with those of silicate and water planets due to similar zero-pressure densities and equations of state. We propose a definition of "super Earths'' based on the clear distinction in radii between planets with significant gas envelopes and those without.
description: ApJ, in press, 33 pages including 16 figures
Didattica attiva e orientamento narrativo: un approccio integrato per favorire autostima, autoefficacia e resilienza
Creators: name: Scierri, Irene Dora Maria
name: Toti, Giulia
name: Trapani, Gabriella
Publisher: name: Ricerche di Pedagogia e Didattica. Journal of Theories and Research in Education
Year: 2019
Subjects: Didattica attiva; orientamento narrativo; autostima; autoefficacia; resilienza

description: Vengono qui presentati i risultati del progetto di prevenzione della dispersione scolastica denominato NoOut3. La strategia proposta dal progetto NoOut si fonda su interventi che agiscono direttamente e congiuntamente sui fattori individuali e scolastici connessi alla dispersione. Lo scopo è quello di promuovere i fattori di successo scolastico come prevenzione dell’abbandono e della dispersione. Nello specifico, è stato implementato un percorso integrato di didattica attiva e orientamento narrativo, indirizzato alle prime due classi della scuola secondaria di primo e secondo grado e ne sono stati rilevati gli effetti su autostima, autoefficacia e resilienza, attraverso un disegno quasi sperimentale. I risultati ottenuti sulle dimensioni in oggetto, valutati tramite test ACESS, TMA e RPQ e analizzati tramite ANOVA a misure ripetute, mostrano effetti significativi su tali fattori connessi al successo scolastico.
description: Ricerche di Pedagogia e Didattica. Journal of Theories and Research in Education, V. 14, N. 1 (2019)
Behavioral, cognitive, motivational, and physiological aspects of shyness in a disclosure reciprocity paradigm
Creators: name: Meleshko, Kenneth George Andrew
Publisher: name: University of British Columbia
Year: 2010

description: The present study examined behavioral, cognitive, motivational, and physiological differences between shy and non-shy female subjects involved in a social encounter with a same-sex confederate. The encounter took the form of a structured dyadic interaction within a traditional disclosure reciprocity paradigm. The results showed that the shy subjects spoke for shorter periods of time and maintained a characteristically middle level of intimacy, regardless of what had been disclosed to them first. Thus, they overdisclosed to the low intimacy confederate and underdisclosed to the high intimacy one as compared to the non-shy subjects. The shy subjects were more negative about themselves and expected their partners to also be more negative about them. Both shy and non-shy subjects, however, were equally positive about their partners. The shy subjects also reported higher levels of physiological arousal, and indicated that they used a protective style of self-presentation as compared to the acquisitive style used by the non-shy subjects. The confederate and observer ratings of the subjects presented somewhat different patterns of results, differences which were interpreted within the larger framework of the study. Taken together, the results suggest that a complex relationship between behavioral, cognitive, motivational, and physiological factors may exist which contributes to the interpersonal difficulties of the shy individual.
Slow Relaxation of Photogenerated Charge Carriers Boosts Open-Circuit Voltage of Organic Solar Cells
Creators: name: Upreti, Tanvi
name: Wilken, Sebastian
name: Zhang, Huotian
name: Kemerink, Martijn
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Among the parameters determining the efficiency of an organic solar cell, the open-circuit voltage ($V_\text{OC}$) is the one with most room for improvement. Existing models for the description of $V_\text{OC}$ assume that photogenerated charge carriers are thermalized. Here, we demonstrate that quasi-equilibrium concepts cannot fully describe $V_\text{OC}$ of disordered organic devices. For two representative donor:acceptor blends it is shown that $V_\text{OC}$ is actually 0.1-0.2 V higher than it would be if the system was in thermodynamic equilibrium. Extensive numerical modeling reveals that the excess energy is mainly due to incomplete relaxation in the disorder-broadened density of states. These findings indicate that organic solar cells work as nonequilibrium devices, in which part of the photon excess energy is harvested in the form of an enhanced $V_\text{OC}$.
description: Final version; title changed; journal reference added
The GALEX UV emission in shell galaxies: tracing galaxy "rejuvenation" episodes
Creators: name: Rampazzo, R.
name: Marino, A.
name: Tantalo, R.
name: Bettoni, D.
name: Buson, L. M.
name: Chiosi, C.
name: Galletta, G.
name: Grueztbauch, R.
name: Rich, R. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the GALEX far FUV and near NUV ultraviolet imaging of three nearby shell galaxies, namely NGC 2865, NGC 5018 and NGC 7135. The system of shells and fine structures visible in the optical is detected in the NUV image of NGC 2865 and in both NUV and FUV images of NGC 7135. The NUV image of NGC 5018 does not present shell structures. We detect absorption features in the nuclear region of all three galaxies. NGC 2865 has a nearly flat colour profile with (FUV-NUV)~2 throughout the whole galaxy. NGC 7135 is blue in the center (FUV-NUV)~0 and as red as (FUV-NUV)~1.5 in the outskirts, including the faint shell-like feature. We investigate the ability of the nuclear GALEX (FUV-NUV) colour to provide information about rejuvenation phenomena in the stellar populations of the shell galaxies. To this aim, we derive from theory the relationship between the Mg2, Hbeta, HgammaA, HdeltaA Lick line-strength indices and the (FUV-NUV) colour. We extend the study to a sample of early-type galaxies with emission lines in their optical spectra (Annibali et al. 2007). In the index vs.(FUV-NUV) colour diagrams, most of the galaxies are well explained by passively evolving SSPs. On the average, ages and metallicities of the galaxies in our sample estimated from optical line-strength indices are consistent with those inferred from the (FUV-NUV) colour. In general, all the colours but for (FUV-NUV) and (FUV-V), become nearly age insensitive when 1-2 Gyr have elapsed from the last star forming event. Considering composite stellar population models with a recent burst of star formation, we suggest that the position of the NGC 7135 and NGC 2865 nuclei in the (FUV-NUV)-Hbeta plane could be explained in term of a recent rejuvenation episode. (Abridged)
description: Accepted for publication in MNRAS Main Journal, 21 pages, 15 figures
Relativistic Guiding-Center Motion: Action Principle, Kinetic Theory, and Hydrodynamics
Creators: name: Son, Dam Thanh
name: Stephanov, Mikhail
Publisher: name: arXiv
Year: 2024
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We treat the guiding-center dynamics in a varying external Maxwell field using a relativistically covariant action principle which reproduces the known Vandervoort expression for the drift velocity and extends it to curved spacetime. We derive the corresponding kinetic theory and ideal hydrodynamic theory. In contrast to conventional five-equation hydrodynamics, the guiding-center hydrodynamics needs only three equations due to a constraint on the motion across magnetic field. We argue that such a hydrodynamics is applicable to strongly coupled plasmas where kinetic theory fails.
description: 6 pages + 7 pages of supplementary material. Published version
Effectiveness of a Short After-School Intervention on Physical Fitness in School-Aged Children
Creators: name: Greco, Gianpiero
name: Cataldi, Stefania
name: Fischetti, Francesco
Publisher: name: Ricerche di Pedagogia e Didattica. Journal of Theories and Research in Education
Year: 2019
Subjects: motor abilities; multilateral training; primary school; physical education

description: The aim of this study was to assess the effects of an 8-week extracurricular multilateral training program on some components of physical fitness in children. Participants (8-10 years) were randomly assigned to an experimental group (EMT, n=14) that performed an extracurricular multilateral training (60 min., 3 sessions per week), or a control group (ST, n=14) that performed a standard school-based physical education program only. Participants physical fitness was assessed by measuring the sit and reach, stork balance stand, standing long jump, and Harre test at baseline and after 8-weeks.The EMT showed significantly (p<0.05) greater improvement than ST group in all fitness tests following training. Results indicate that extracurricular multilateral activities focused on exercises aimed to the development of the conditional and coordinative motor abilities, improve the health- and skill-related components of physical fitness.
description: Ricerche di Pedagogia e Didattica. Journal of Theories and Research in Education, V. 14, N. 1 (2019)
Inhalt
Creators: name: Redaktion, Die
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2021

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 50 Nr. 4 (2021)
Recensione di: Pietro Maltese, Generazioni precarie. Formazione e lavoro nella realtà dei call center, ETS, Pisa, 2011
Creators: name: Di Grigoli, Antonio Raimondo
Publisher: name: Ricerche di Pedagogia e Didattica. Journal of Theories and Research in Education
Year: 2019

description: Ricerche di Pedagogia e Didattica. Journal of Theories and Research in Education, V. 14, N. 1 (2019)
Entanglement dynamics in Rule 54: Exact results and quasiparticle picture
Creators: name: Klobas, Katja
name: Bertini, Bruno
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the entanglement dynamics generated by quantum quenches in the quantum cellular automaton Rule $54$. We consider the evolution from a recently introduced class of solvable initial states. States in this class relax (locally) to a one-parameter family of Gibbs states and the thermalisation dynamics of local observables can be characterised exactly by means of an evolution in space. Here we show that the latter approach also gives access to the entanglement dynamics and derive exact formulas describing the asymptotic linear growth of all Rényi entropies in the thermodynamic limit and their eventual saturation for finite subsystems. While in the case of von Neumann entropy we recover exactly the predictions of the quasiparticle picture, we find no physically meaningful quasiparticle description for other Rényi entropies. Our results apply to both homogeneous and inhomogeneous quenches.
description: 33 pages, 5 figures; v2 accepted version
Results for a turbulent system with unbounded viscosities: weak formulations, existence of solutions, boundedness, smoothness'
Creators: name: Dreyfuss, Pierre
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J70; 35D05; 35D10; 86A05

description: We consider a circulation system arising in turbulence modelling in fluid dynamics with unbounded eddy viscosities. Various notions of weak solutions are considered and compared. We establish existence and regularity results. In particular we study the boundedness of weak solutions. We also establish an existence result for a classical solution
เทคนิคการทำแผนที่ซีฟปรับปรุงเพื่อเลือกที่ตั้งโครงการพัฒนาที่อยู่อาศัยในเมืองการค้าชายแดนไทย-มาเลเซีย
Creators: name: ตรีชาติ เลาแก้วหนู
Publisher: name: Thammasat Printing House
Year: 2018
Subjects: เทคนิคการทำแผนที่ซีฟปรับปรุง
การเลือกที่ตั้ง
โครงการพัฒนาที่อยู่อาศัย
เมืองชายแดน

description: Journal of Architectural/Planning Research and Studies, 15, 2, 43-56