cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Legal Change in the Face of Risk Averse Subjects: A Generalization of the Theory
Creators: name: Franzoni, Luigi Alberto
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2019
Subjects: SECS-P/03 Scienza delle finanze

description: This study investigates the optimal nature of law making under uncertainty. I focus on a case in which a harmful activity will be subjected to some regulatory measures (a standard, exposure to liability, or a corrective tax). The benefits and costs of precaution are ex-ante uncertain, and this places a risk burden on both injurers and victims. The optimal policy should, at the same time, strike a balance between benefits and costs of the measures, and attenuate the ex-ante risk. Whether measures should be made stronger or softer depends on the size and the sign of the shocks affecting the parties (positive or negative) and their disposition towards risk. With corrective taxes, it also depends on the elasticity of precautions with respect to the tax rate.
Entanglement fidelity and measurement of entanglement preserving in quantum processes
Creators: name: Xiang, Yang
name: Xiong, Shi-Jie
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The entanglement fidelity provides a measure of how well the entanglement between two subsystems is preserved in a quantum process. By using a simple model we show that in some cases this quantity in its original definition fails in the measurement of the entanglement preserving. On the contrary, the modified entanglement fidelity, obtained by using a proper local unitary transformation on a subsystem, is shown to exhibit the behavior similar to that of the concurrence in the quantum evolution.
description: 4 pages, 2 figures. v2: repaired a severe oversight, removed an incorrect claim, added references; v3: version accepted for publication in Phys. Rev. A
Re-entrant Superconductivity Through a Quantum Lifshitz Transition in Twisted Trilayer Graphene
Creators: name: Lake, Ethan
name: Senthil, T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A series of recent experiments have demonstrated robust superconductivity in magic-angle twisted trilayer graphene (TTG). In particular, a recent work by Cao et al. (arxiv:2103.12083) studies the behavior of the superconductor in an in-plane magnetic field and out-of-plane displacement field, finding that the superconductor is unlikely to be spin-singlet. This work also finds that at high magnetic fields and a smaller range of dopings and displacement fields, it undergoes a transition to a distinct field-induced superconducting state. Inspired by these results, we develop an understanding of superconductivity in TTG using a combination of phenomenological reasoning and microscopic theory. We describe role that that an in-plane field plays in TTG, and use this understanding to argue that the re-entrant transition may be associated with a quantum Lifshitz phase transition, with the high-field phase possessing finite-momentum pairing. We argue that the superconductor is likely to involve a superposition of singlet singlet and triplet pairing, and describe the structure of the normal state. We also draw lessons for twisted bilayer graphene (TBG), and explain the differences in the phenomenology with TTG despite their close microscopic relationship. We propose that a singlet-triplet superposition is realized in the TBG superconductor as well, and that the $ν= -2$ correlated insulator may be a time reversal protected $\mathbb{Z}_2$ topological insulator obtained through spontaneous spin symmetry breaking.
description: 7+21 pages. v2: added discussion on lessons for TBG v3: minor edits
Reduced order models for Lagrangian hydrodynamics
Creators: name: Copeland, Dylan Matthew
name: Cheung, Siu Wun
name: Huynh, Kevin
name: Choi, Youngsoo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: As a mathematical model of high-speed flow and shock wave propagation in a complex multimaterial setting, Lagrangian hydrodynamics is characterized by moving meshes, advection-dominated solutions, and moving shock fronts with sharp gradients. These challenges hinder the existing projection-based model reduction schemes from being practical. We develop several variations of projection-based reduced order model techniques for Lagrangian hydrodynamics by introducing three different reduced bases for position, velocity, and energy fields. A time-windowing approach is also developed to address the challenge imposed by the advection-dominated solutions. Lagrangian hydrodynamics is formulated as a nonlinear problem, which requires a proper hyper-reduction technique. Therefore, we apply the over-sampling DEIM and SNS approaches to reduce the complexity due to the nonlinear terms. Finally, we also present both a posteriori and a priori error bounds associated with our reduced order model. We compare the performance of the spatial and time-windowing reduced order modeling approaches in terms of accuracy and speed-up with respect to the corresponding full order model for several numerical examples, namely Sedov blast, Gresho vortices, Taylor-Green vortices, and triple-point problems.
description: 42 pages, 7 figure, 8 tables
OB00182 - OB00182 Ramtek Memorial Stone
Creators: name: No Author
Publisher: name: Zenodo
Year: 2022

description: [caption id="attachment_6720" align="alignnone" width="497"] Ancient Vidarbha showing find-spots of Vākāṭaka inscriptions. (Zenodo).[/caption] [caption id="attachment_6746" align="alignnone" width="497"] Ramtek (Maharashtra). Kevala Nṛsiṃha temple inscription (Zenodo).[/caption]
A corpus-based analysis of the vitality of Sardinian.
A comparison with Māori
Creators: name: Gianni, Onnis
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2019
Subjects: L-LIN/01 Glottologia e linguistica
L-LIN/12 Lingua e traduzione - Lingua inglese

description: Sardinian and Māori are two endangered languages belonging to similar language systems, despite their territorial distance. Both language systems are set on insular settings and shaped by language contact interactions involving local autochthonous languages ‒ Sardinian and Māori ‒ and imported languages ‒ Italian and English respectively. In both cases, language contact conditions have led Italian and English to become majority languages, while Sardinian and Māori have survived as endangered minority languages. This situation has produced new non-standard varieties of the imported majority languages: Regional Italian of Sardinia (RIS) and New Zealand English (NZE). Drawing on corpus-based research on Māori lexical presence in NZE (Macalister 2001; 2006a; 2006b), this study adapts existing methods of analysis to test the vitality of Sardinian, by measuring its influence on RIS. A new corpus, the RIS Corpus, has therefore been created, based on Macalister’s NZE Corpus (2001). A comparison between the lexical presence of Sardinian and Māori in the two corpora shows different representations of the autochthonous cultures in RIS and NZE, in line with UNESCO’s statement on the vitality of the two endangered languages, with Sardinian defined as definitely endangered, and Māori recognised as vulnerable.
Spin dephasing due to a random Berry phase
Creators: name: San-Jose, Pablo
name: Schön, Gerd
name: Shnirman, Alexander
name: Zarand, Gergely
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate relaxation and dephasing of an electron spin confined in a semiconductor quantum dot and subject to spin-orbit coupling. Even in vanishing magnetic field, B = 0, slow noise coupling to the electron's orbital degree of freedom leads to dephasing of the spin due to a random, in general non-Abelian Berry phase acquired by the spin. For illustration we first present a simple quasiclassical description, then consider a model with 2 orbital states only, and finally present a perturbative quantum treatment appropriate for an electron in a realistic (roughly parabolic, not too strongly confining) quantum dot. We further compare the effect of different sources of noise. While at large magnetic fields phonons dominate the relaxation processes, at low fields electron-hole excitations and possibly 1/f noise may dominate.
description: 8 pages, 6 figures, prepared for Proceedings of DECONS06 (Dresden, May 2006)
Additional file 1: of Tumor-derived exosomal HMGB1 fosters hepatocellular carcinoma immune evasion by promoting TIM-1+ regulatory B cell expansion
Creators: name: Ye, Linsen
name: Zhang, Qi
name: Cheng, Yusheng
name: Chen, Xiaolong
name: Wang, Guoying
name: Shi, Mengchen
name: Zhang, Tong
name: Cao, Yingjiao
name: Pan, Hang
name: Zhang, Liting
name: Wang, Genshu
name: Deng, Yinan
name: Yang, Yang
name: Chen, Guihua
Publisher: name: figshare
Year: 2018
Subjects: subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy

description: Table S1. Characteristics of the study population (NÂ =â 51. (DOCX 15 kb)
Additional file 6: of Tumor-derived exosomal HMGB1 fosters hepatocellular carcinoma immune evasion by promoting TIM-1+ regulatory B cell expansion
Creators: name: Ye, Linsen
name: Zhang, Qi
name: Cheng, Yusheng
name: Chen, Xiaolong
name: Wang, Guoying
name: Shi, Mengchen
name: Zhang, Tong
name: Cao, Yingjiao
name: Pan, Hang
name: Zhang, Liting
name: Wang, Genshu
name: Deng, Yinan
name: Yang, Yang
name: Chen, Guihua
Publisher: name: figshare
Year: 2018
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy

description: Table S5. Univariate and Multivariate Analysis of Prognostic Factors for recurrence-free survival and Overall Survival (NÂ =â 29). (DOCX 18 kb)
Coherent control of a single electron spin with electric fields
Creators: name: Nowack, K. C.
name: Koppens, F. H. L.
name: Nazarov, Yu. V.
name: Vandersypen, L. M. K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Manipulation of single spins is essential for spin-based quantum information processing. Electrical control instead of magnetic control is particularly appealing for this purpose, since electric fields are easy to generate locally on-chip. We experimentally realize coherent control of a single electron spin in a quantum dot using an oscillating electric field generated by a local gate. The electric field induces coherent transitions (Rabi oscillations) between spin-up and spin-down with pi/2 rotations as fast as ~55ns. Our analysis indicates that the electrically-induced spin transitions are mediated by the spin-orbit interaction. Taken together with the recently demonstrated coherent exchange of two neighboring spins, our results demonstrate the feasibility of fully electrical manipulation of spin qubits.
description: Total 24 pages, 10 pages main text, 4 figures, 10 pages supplementary material
The Vogel-Fulcher-Tamman law in the elastic theory of glass transition
Creators: name: Trachenko, Kostya
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We propose that the origin of the Vogel-Fulcher-Tammann law is the increase of the range of elastic interaction between local relaxation events in a liquid. In this picture, we discuss the origin of cooperativity of relaxation, the absence of divergence of relaxation time at a finite temperature and the crossover to a more Arrhenius behaviour at low temperature.
MOESM2 of A potential distribution map of wintering Swan Goose (Anser cygnoides) in the middle and lower Yangtze River floodplain, China
Creators: name: An, An
name: Zhang, Yong
name: Cao, Lei
name: Jia, Qiang
name: Wang, Xin
Publisher: name: figshare
Year: 2018
Subjects: subject: Cell Biology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified

description: Additional file 2: Table S2. Spearmanâ s correlation matrix of spatial autocorrelation analysis.
Galactic foreground constraints on primordial $B$-mode detection for ground-based experiments
Creators: name: Hervías-Caimapo, Carlos
name: Bonaldi, Anna
name: Brown, Michael L.
name: Huffenberger, Kevin M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Contamination by polarized foregrounds is one of the biggest challenges for future polarized cosmic microwave background (CMB) surveys and the potential detection of primordial $B$-modes. Future experiments, such as Simons Observatory (SO) and CMB-S4, will aim at very deep observations in relatively small ($f_{\rm sky} \sim 0.1$) areas of the sky. In this work, we investigate the forecasted performance, as a function of the survey field location on the sky, for regions over the full sky, balancing between polarized foreground avoidance and foreground component separation modeling needs. To do this, we simulate observations by an SO-like experiment and measure the error bar on the detection of the tensor-to-scalar ratio, $σ(r)$, with a pipeline that includes a parametric component separation method, the Correlated Component Analysis, and the use of the Fisher information matrix. We forecast the performance over 192 survey areas covering the full sky and also for optimized low-foreground regions. We find that modeling the spectral energy distribution of foregrounds is the most important factor, and any mismatch will result in residuals and bias in the primordial $B$-modes. At these noise levels, $σ(r)$ is not especially sensitive to the level of foreground contamination, provided the survey targets the least-contaminated regions of the sky close to the Galactic poles.
description: 13 pages, 8 figures, 2 tables. Accepted for publication by ApJ, updated to match the accepted version
Cherry-Picking Gradients: Learning Low-Rank Embeddings of Visual Data via Differentiable Cross-Approximation
Creators: name: Usvyatsov, Mikhail
name: Makarova, Anastasia
name: Ballester-Ripoll, Rafael
name: Rakhuba, Maxim
name: Krause, Andreas
name: Schindler, Konrad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We propose an end-to-end trainable framework that processes large-scale visual data tensors by looking at a fraction of their entries only. Our method combines a neural network encoder with a tensor train decomposition to learn a low-rank latent encoding, coupled with cross-approximation (CA) to learn the representation through a subset of the original samples. CA is an adaptive sampling algorithm that is native to tensor decompositions and avoids working with the full high-resolution data explicitly. Instead, it actively selects local representative samples that we fetch out-of-core and on-demand. The required number of samples grows only logarithmically with the size of the input. Our implicit representation of the tensor in the network enables processing large grids that could not be otherwise tractable in their uncompressed form. The proposed approach is particularly useful for large-scale multidimensional grid data (e.g., 3D tomography), and for tasks that require context over a large receptive field (e.g., predicting the medical condition of entire organs). The code is available at https://github.com/aelphy/c-pic.
Bergman metrics and geodesics in the space of Kähler metrics on toric varieties
Creators: name: Song, Jian
name: Zelditch, Steve
Publisher: name: arXiv
Year: 2007
Subjects: subject: Complex Variables (math.CV)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Geodesics on the infinite dimensional symmetric space $\hcal$ of Kähler metrics in a fixed Kähler class on a projective Kähler manifold X are solutions of a homogeneous complex Monge-Ampère equation in $X \times A$, where $A \subset \C$ is an annulus. They are analogues of 1PS (one-parameter subgroups) on symmetric spaces $G_{\C}/G$. Donaldson, Arezzo-Tian and Phong-Sturm raised the question whether Monge-Ampère geodesics can be approximated by 1PS geodesics in the symmetric spaces of Bergman metrics. Phong-Sturm proved weak C^0 convergence of Bergman to Monge-Ampère geodesics on a general \kahler manifold. In this article we prove convergence in $C^2(A \times X)$ in the case of toric Kähler metrics, extending our earlier result on $\CP^1$.
description: A substantial revision. More detail is given on estimates in Section 6, and a precise rate of convergence is given. The introduction is updated to take into account subsequent work by the authors, partly in collaboration with Y. Rubinstein
The Resolved Sunyaev--Zel'dovich Profiles of Nearby Galaxy Groups
Creators: name: Pratt, C. T.
name: Qu, Z.
name: Bregman, J. N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Much of the baryons in galaxy groups are thought to have been driven out to large distances ($\gtrsim$$R_{500}$) by feedback, but there are few constraining observations of this extended gas. This work presents the resolved Sunyaev--Zel'dovich (SZ) profiles for a stacked sample of 10 nearby galaxy groups within the mass range log$_{10}(M_{500}[M_{\odot}]) = 13.6 -13.9$. We measured the SZ profiles using the publicly available $y$-map from the Planck Collaboration as well as our own $y$-maps constructed from more recent versions of $Planck$ data. The $y$-map extracted from the latest data release yielded a significant SZ detection out to 3 $R_{500}$. In addition, the stacked profile from these data were consistent with simulations that included AGN feedback. Our best-fit model using the latest $Planck$ data suggested a baryon fraction $\approx 5.6\%$ within $R_{500}$. This is significantly lower than the cosmic value of $\approx 16\%$, supporting the idea that baryons have been driven to large radii by AGN feedback. Lastly, we discovered a significant ($\sim 3σ$) "bump" feature near $\sim 2$ $R_{500}$ that is most likely the signature of internal accretion shocks.
description: 15 pages, 10 figures, 1 table, published in ApJ
The application of immunology to food science, two studies : production of monoclonal antibodies (Mabs) specific for an enteropathogenic E. coli (EPEC) ; development of an enzyme-linked immunosorbent assay (ELISA) for [Beta]-N-acetylglucosaminidase (NAGase)
Creators: name: Jarvis, Sandra Marie
Publisher: name: University of British Columbia
Year: 2010

description: Two hybridoma clones, labelled 4D10 C1 and 2H4 H12, produced monoclonal antibodies which recognized the outer membrane of an enteropathogenic Escherichia coli (EPEC) 0142:K86:H6 in an enzyme-linked immunosorbent assay (ELISA) and the whole cell in an immunofluorescence assay. Large scale production of the monoclonal antibodies was accomplished through ascites production in balb/c mice. Purification of the ascites fluid was achieved by gel filtration and ion exchange chromatography. Isotyping of the purified fractions showed 4D10 C1 to be an IgG2 and 2H4 H12 an IgM. These monoclonal antibodies were screened by immunofluorescence assay against several pathogenic and nonpathogenic strains of E.coli in addition to other Enterobacteriaciae. Results of the screening showed these antibodies to be specific for the E.coli serotype to which they were raised. Minimal cross-reactivity with other Enterobacteriaceae was observed. In a separate and concurrent project, the use of an ELISA capable of detecting ß-N-acetylglucosaminidase (NAGase) was examined. White Leghorn hens were injected with commercially prepared bovine NAGase. Eggs were collected and the immunoglobulin fraction separated from the egg yolk by polyethylene glycol precipitation followed by ion exchange on a DEAE-Sephacel column. The use of the purified immunoglobulins was examined in a sandwich, double-sandwich and a competitive ELISA. A statistically significant standard curve for the detection of NAGase was successfully derived using a double-sandwich ELISA when rabbit immunoglobulin was used to coat the microwell plates. This assay was used to measure the NAGase concentration in press juice and fish extract of fresh and frozen salmon muscle samples. The ratio of the NAGase concentration in the press juice to the total NAGase concentration was compared. No significant difference was found between the calculated concentration ratios of the fresh muscle samples and samples frozen for 1 week at -20°C.
Liquid elasticity length and universal dynamic crossovers
Creators: name: Trachenko, Kostya
name: Brazhkin, Vadim
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We discuss two main universal dynamic crossovers in a liquid that correspond to relaxation times of 1 ps and $10^{-7}-10^{-6}$ s. We introduce the concept of liquid elasticity length $d_{el}$. At room temperature, $d_{el}$ is several Åin water and increases to 0.01 mm in honey and 1 mm in tar. We show that on temperature decrease, $d_{el}$ crosses the fundamental lengths of the system, medium-range order $d_m$ and system size $L$. We discuss how $d_{el}=d_m$ and $d_{el}=L$ correspond to the two dynamic crossovers.
Monitoring quantum Otto engines
Creators: name: Son, Jeongrak
name: Talkner, Peter
name: Thingna, Juzar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Unlike classical systems, a measurement performed on a quantum system always alters its state. In this work, the impacts of two diagnostic schemes to determine the performance of quantum Otto heat engines are compared: In one scheme, the energy of the engine's working substance is measured after each stroke (repeated measurements), and in the other one, the energies after each stroke are recorded in one or two pointer states and measured only after the completion of a prescribed number of cycles (repeated contacts). A single pointer state suffices if one is only interested in either work or heat. For joint work and heat diagnostics, two pointers are needed. These schemes are applied to Otto engines, whose working substance consists of a two-level system. Depending on the engine protocol, the duration of a single cycle may be infinite or finite. Because in the repeated contact scheme, the number of measurements is drastically reduced compared to the repeated measurement scheme, the quantum coherence after and during the contact diagnostics is much better maintained than repeated measurements that destroy any coherence at the end of each stroke. We demonstrate that maximum power, reliability, and efficiency of the engine in the presence of repeated contacts typically outperform these figures of merit of repeated measurements. Due to the improved coherence persistence, heat engines with a finite cycle duration require a larger number of cycles to reach a periodically asymptotic state. Overall, our results document the importance of taking into account the particular nature of diagnostic tools for monitoring and testing purposes but also for feedback control, both in theory and experiment.
description: 21 pages and 6 figures. Comments are welcome
Kondo effect in transport through molecules adsorbed on metal surfaces: from Fano dips to Kondo peaks
Creators: name: Aguiar-Hualde, J. M.
name: Chiappe, G.
name: Louis, E.
name: Anda, E. V.
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: The Kondo effect observed in recent STM experiments on transport through CoPc and TBrPP-Co molecules adsorbed on Au(111) and Cu(111) surfaces, respectively, is discussed within the framework of a simple model (Phys. Rev. Lett. {\bf 97}, 076806 (2006)). It is shown that, in the Kondo regime and by varying the adequate model parameters, it is possible to produce a crossover from a conductance Kondo peak (CoPc) to a conductance Fano dip (TBrPP-Co). In the case of TBrPP-Co/Cu(111) we show that the model reproduces the changes in the shape of the Fano dip, the raising of the Kondo temperature and shifting to higher energies of the dip minimum when the number of nearest neighbors molecules is lowered. These features are in line with experimental observations indicating that our simple model contains the essential physics underlying the transport properties of such complex molecules.
description: 4 pages, 3 figures, submitted to PRL
Hydrodynamical thermotransport relaxation times of semiconductor electrons via acoustic phonons
Creators: name: Rangel-Huerta, A.
name: Rodriguez-Meza, M. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose a hydrodynamic model to study the thermotransport properties of semiconductor electrons. From the semiclassical Boltzmann equation a set of balance equations is built for the relevant fields. The electron density, the electron energy density, the electric current density and the heat flux density are considered as the basic fields of direct transport and cross effect fluxes. The kinetic relaxation times of the production terms are calculated by considering the electron-acoustic phonon interaction as the leading microscopic scattering process. To justify the long time thermalization regime, the Onsager symmetry relations are proved, both on the completely degenerate and non degenerate limits.
description: 5 pages; to appear in Rev. Mex. Fis
Canonical Deformed Groups of Diffeomorphisms and Finite Parallel Transports in Riemannian Spaces
Creators: name: Samokhvalov, Serhiy E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 53B05; 53B20; 58H05; 58H15

description: We show that finite parallel transports of vectors in Riemannian spaces, determined by the multiplication law in the deformed groups of diffeomorphisms, and sequences of infinitesimal parallel transports of vectors along geodesics are equivalent.
description: 12 pages
Entanglement in the quantum Ising model
Creators: name: Grimmett, Geoffrey
name: Osborne, Tobias
name: Scudo, Petra
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the asymptotic scaling of the entanglement of a block of spins for the ground state of the one-dimensional quantum Ising model with transverse field. When the field is sufficiently strong, the entanglement grows at most logarithmically in the number of spins. The proof utilises a transformation to a model of classical probability called the continuum random-cluster model, and is based on a property of the latter model termed ratio weak-mixing. Our proof applies equally to a large class of disordered interactions.
A Positive-Weight Next-to-Leading-Order Monte Carlo for Heavy Flavour Hadroproduction
Creators: name: Frixione, Stefano
name: Nason, Paolo
name: Ridolfi, Giovanni
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a next-to-leading order calculation of heavy flavour production in hadronic collisions that can be interfaced to shower Monte Carlo programs. The calculation is performed in the context of the POWHEG method. It is suitable for the computation of charm, bottom and top hadroproduction. In the case of top production, spin correlations in the decay products are taken into account.
description: 18 pages, 12 figures. Few misprints corrected, references updated, final remarks added
Methanol masers as tools to study high-mass star formation
Creators: name: Pestalozzi, Michele
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this contribution I will attempt to show that the study of galactic 6.7 and 12.2GHz methanol masers themselves, as opposed to the use of methanol masers as signposts, can yield important conclusions contributing to the understanding of high-mass star formation. Due to their exclusive association with star formation, methanol masers are the best tools to do this, and their large number allows to probe the entire Galaxy. In particular I will focus on the determination of the luminosity function of methanol masers and on the determination of an unambiguous signature for a circumstellar masing disc seen edge-on. Finally I will try to point out some future fields of research in the study of methanol masers.
description: 8 pages, invited talk at the IAU Symposium 242, "Astrophysical masers and their environment"
Εκτέλεση αποφάσεων: αμφιβολίες – αντιρρήσεις ως προς την εφαρμογή της
Creators: name: Αδάμπας, Βασίλειος Ι.
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Εκτέλεση αποφάσεων
Αμφιβολίες
Αντιρρήσεις
Οιονεί ένδικα μέσα
Sanctions' execution
Doubts
Objections
Procedural acts

description: Η παρούσα μελέτη υποβλήθηκε και εγκρίθηκε στις 9.9.2013 ως διδακτορική διατριβή από το Τμήμα Νομικής της Σχολής Νομικών, Οικονομικών και Πολιτικών Επιστημών του Α.Π.Θ. Κύριος στόχος του έργου υπήρξε η διεξοδική διερεύνηση όλων των πτυχών μίας μερικότερης έκφανσης του δικαίου της ποινικής εκτέλεσης, και συγκεκριμένα των αμφιβολιών και των αντιρρήσεων ως προς την εφαρμογή της (: άρθρο 565 ΚΠΔ). Στο πλαίσιο αυτό, επιχειρήθηκε αναγωγή στις διατάξεις του ουσιαστικού και του δικονομικού ποινικού δικαίου που κρίθηκαν συναφείς. Ταυτόχρονα, καταβλήθηκε προσπάθεια να εντοπισθεί κάθε ζήτημα, του οποίου η διαχείριση θα μπορούσε να έχει ερμηνευτικές παρεκτάσεις.
description: The present essay was submitted and approved on 09/09/2013 as a doctoral dissertation by the Faculty of Law, Economics and Political Sciences of the Aristotle University of Thessaloniki. The main objective of the thesis was the analysis in depth of all aspects of a special expression of law of criminal sanctions' execution, and more specifically the doubts and objections referring to the execution of a sentence (: Art. 565 of Code for Criminal Procedure). In this framework, all the relevant issues of substantive criminal law and criminal procedure were analyzed. Simultaneously, an effort was made in order to trace every issue that could raise interpretative problems
Microscopic description of nuclear quantum phase transitions
Creators: name: Niksic, T.
name: Vretenar, D.
name: Lalazissis, G. A.
name: Ring, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The relativistic mean-field framework, extended to include correlations related to restoration of broken symmetries and to fluctuations of the quadrupole deformation, is applied to a study of shape transitions in Nd isotopes. It is demonstrated that the microscopic self-consistent approach, based on global effective interactions, can describe not only general features of transitions between spherical and deformed nuclei, but also the singular properties of excitation spectra and transition rates at the critical point of quantum shape phase transition.
description: 10 pages, 4 figures, accepted for publication in Physical Review Letters
Prospects for Stochastic Background Searches Using Virgo and LSC Interferometers
Creators: name: Cella, Giancarlo
name: Colacino, Carlo Nicola
name: Cuoco, Elena
name: Di Virgilio, Angela
name: Regimbau, Tania
name: Robinson, Emma L
name: Whelan, John T
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the question of cross-correlation measurements using Virgo and the LSC Interferometers (LIGO Livingston, LIGO Hanford, and GEO600) to search for a stochastic gravitational-wave background. We find that inclusion of Virgo into the network will substantially improve the sensitivity to correlations above 200 Hz if all detectors are operating at their design sensitivity. This is illustrated using a simulated isotropic stochastic background signal, generated with an astrophysically-motivated spectrum, injected into 24 hours of simulated noise for the LIGO and Virgo interferometers.
description: 11 pages, uses IOP style files, submitted to CQG for GWDAW11 proceedings; revised in response to referee comments
NNLO fermionic corrections to the charm quark mass dependent matrix elements in B -> X_s gamma
Creators: name: Boughezal, R.
name: Czakon, M.
name: Schutzmeier, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the virtual O(alpha_s^2) fermionic contributions to the charm quark mass dependent matrix elements of the B -> X_s gamma decay. In the case of a massless quark loop insertion into the gluon propagator, our result obtained as an expansion in z=m_c^2/m_b^2 and an exact expression in terms of multi-fold MB integrals, confirms the findings of Bieri, Greub and Steinhauser [19]. We observe, however, large deviations in the case of a b-quark loop insertion.The charm quark loop shows smaller, but still noticeable differences.
description: 11 pages, 3 figures, 1 table
A macroscopic object passively cooled into its quantum ground state of motion: beyond single-mode cooling
Creators: name: Cattiaux, D.
name: Golokolenov, I.
name: Kumar, S.
name: Sillanpää, M.
name: de Lépinay, L. Mercier
name: Gazizulin, R. R.
name: Zhou, X.
name: Armour, A. D.
name: Bourgeois, O.
name: Fefferman, A.
name: Collin, E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The building blocks of Nature, namely atoms and elementary particles, are described by quantum mechanics. This fundamental theory is the ground on which physicists have built their major mathematical models [1]. Today, the unique features of quantum objects have led to the advent of promising quantum technologies [2, 3]. However, the macroscopic world is manifestly classical, and the nature of the quantum-to-classical crossover remains one of the most challenging open question of Science to date. In this respect, moving objects play a specific role [4, 5]. Pioneering experiments over the last few years have begun exploring quantum behaviour of micron-sized mechanical systems,either by passively cooling single GHz modes, or by adapting laser cooling techniques developed in atomic physics to cool specific modes far below the temperature of their surroundings [6-11]. Here instead we describe a very different approach, passive cooling of a micromechanical system down to 500 microK, reducing the average number of quanta in the fundamental vibrational mode at 15 MHz to just 0.3 (with even lower values expected for higher harmonics); the challenge being to be still able to detect the motion without disturbing the system noticeably. With such an approach higher harmonics and the surrounding environment are also cooled, leading to potentially much longer mechanical coherence times, and enabling experiments questioning mechanical wave-function collapse [12], potentially from the gravitational background [13, 14], and quantum thermodynamics [15]. Beyond the average behaviour, here we also report on the fluctuations of the fundamental vibrational mode of the device in-equilibrium with the cryostat. These reveal a surprisingly complex interplay with the local environment and allow characteristics of two distinct thermodynamic baths to be probed.
description: With S.I
Additional file 3 of QKI degradation in macrophage by RNF6 protects mice from MRSA infection via enhancing PI3K p110β dependent autophagy
Creators: name: Zhai, Dongsheng
name: Wang, Wenwen
name: Ye, Zichen
name: Xue, Ke
name: Chen, Guo
name: Hu, Sijun
name: Yan, Zhao
name: Guo, Yanhai
name: Wang, Fang
name: Li, Xubo
name: Xiang, An
name: Li, Xia
name: Lu, Zifan
name: Wang, Li
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 3: Analysis of clinical and microbiological characteristics of patients with septic shock
The optimal lattice quantizer in nine dimensions
Creators: name: Allen, Bruce
name: Agrell, Erik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Metric Geometry (math.MG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The optimal lattice quantizer is the lattice which minimizes the (dimensionless) second moment $G$. In dimensions $1$ to $8$, it has been proven that the optimal lattice quantizer is one of the classical lattices, or there is good evidence for this. In contrast, more than two decades ago, convincing numerical studies showed that in dimension $9$, a non-classical lattice is optimal. The structure and properties of this lattice depend upon a real parameter $a>0$, whose value was only known approximately. Here, we give a full description of this one-parameter family of lattices and their Voronoi cells, and calculate their (scalar and tensor) second moments analytically as a function of $a$. The value of $a$ which minimizes $G$ is an algebraic number, defined by the root of a $9$th order polynomial, with $a \approx 0.573223794$. For this value of $a$, the covariance matrix (second moment tensor) is proportional to the identity, consistent with a theorem of Zamir and Feder for optimal quantizers. The structure of the Voronoi cell depends upon $a$, and undergoes phase transitions at $a^2 = 1/2$, $1$ and $2$, where its geometry changes abruptly. At each transition, the analytic formula for the second moment changes in a very simple way. Our methods can be used for arbitrary one-parameter families of layered lattices, and may thus provide a useful tool to identify optimal quantizers in other dimensions as well.
description: Final published version of the paper
Isospin Distillation with Radial Flow: a Test of the Nuclear Symmetry Energy
Creators: name: Colonna, M.
name: Baran, V.
name: Di Toro, M.
name: Wolter, H. H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss mechanisms related to isospin transport in central collisions between neutron-rich systems at Fermi energies. A fully consistent study of the isospin distillation and expansion dynamics in two-component systems is presented in the framework of a stochastic transport theory. We analyze correlations between fragment observables, focusing on the study of the average N/Z of fragments, as a function of their kinetic energy. We identify an EOS-dependent relation between these observables, allowing to better characterize the fragmentation path and to access new information on the low density behavior of the symmetry energy.
description: 4 pages, 4 figures (revtex4)
Imprint of the seesaw mechanism on feebly interacting dark matter and the baryon asymmetry
Creators: name: Datta, Arghyajit
name: Roshan, Rishav
name: Sil, Arunansu
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the type-I seesaw, responsible for generating the light neutrino mass, itself is capable of accommodating one of the three right handed neutrinos as a freeze-in type of dark matter (DM) where the required smallness of the associated coupling is connected to the lightness of the (smallest) active neutrino mass. It turns out that (a) the non-thermal production of DM having mass $\lesssim \mathcal{O}(1)$ MeV (via decays of $W, Z$ bosons and SM Higgs) consistent with relic density as well as (b) its stability determine this smallest active neutrino mass uniquely $\sim {\mathcal{O}}(10^{-12})$ eV. On the other hand, the study of flavor leptogenesis in this scenario (taking into account the latest neutrino data and Higgs vacuum stability issue) fixes the scale of two other right handed neutrinos.
description: 6 pages, 3 figures (Accepted for publication in Physical Review Letters )
Forward-jet production in deep inelastic ep scattering at HERA
Creators: name: Chekanov, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Forward jet cross sections have been measured in neutral current deep inelastic scattering at low Bjorken-x with the ZEUS detector at HERA using an integrated luminosity of ${81.8 \rm pb}^{-1}$. Measurements are presented for inclusive forward jets as well as for forward jets accompanied by a dijet system. The explored phase space, with jet pseudorapidity up to 4.3 is expected to be particularly sensitive to the dynamics of QCD parton evolution at low x. The measurements are compared to fixed-order QCD calculations and to leading-order parton-shower Monte Carlo models.
description: 33 pages, 10 figures, 9 tables, accepted by The European Physical Journal C
Log-domain decoding of quantum LDPC codes over binary finite fields
Creators: name: Lai, Ching-Yi
name: Kuo, Kao-Yueh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: A quantum stabilizer code over GF$(q)$ corresponds to a classical additive code over GF$(q^2)$ that is self-orthogonal with respect to a symplectic inner product. We study the decoding of quantum low-density parity-check (LDPC) codes over binary finite fields GF$(q=2^l)$ by the sum-product algorithm, also known as belief propagation (BP). Conventionally, a message in a nonbinary BP for quantum codes over GF$(2^l)$ represents a probability vector over GF$(2^{2l})$, inducing high decoding complexity. In this paper, we explore the property of the symplectic inner product and show that scalar messages suffice for BP decoding of nonbinary quantum codes, rather than vector messages necessary for the conventional BP. Consequently, we propose a BP decoding algorithm for quantum codes over GF$(2^l)$ by passing scalar messages so that it has low computation complexity. The algorithm is specified in log domain by using log-likelihood ratios (LLRs) of the channel statistics to have a low implementation cost. Moreover, techniques such as message normalization or offset can be naturally applied in this algorithm to mitigate the effects of short cycles to improve BP performance. This is important for nonbinary quantum codes since they may have more short cycles compared to binary quantum codes. Several computer simulations are provided to demonstrate these advantages. The scalar-based strategy can also be used to improve the BP decoding of classical linear codes over GF$(2^l)$ with many short cycles.
description: correct the definition of {\cal S}^\perp on page 4 and equation (17)
Analytical derivatives of Neural Networks
Creators: name: Rodini, Simone
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a simple recursive algorithm that allows the computation of the first- and second-order derivatives with respect to the inputs of an arbitrary deep feed forward neural network (DFNN). The algorithm naturally incorporates the derivatives with respect to the network parameters. To test the algorithm, we apply it to the study of the quantum mechanical variational problem for few cases of simple potentials, modeling the ground-state wave function in terms of a DFNN.
description: 12 pages, 7 figures
title: L'effet de rétroaction de l'élaboration d'une table de spécification (TDS) dans un dispositif de formation en soins palliatifs
title: L'effet de rétroaction de l'élaboration d'une table de spécification (TDS) dans un dispositif de formation en soins palliatifs
titleType: AlternativeTitle
Creators: name: Berisha, Kosovare
Publisher: name: Unknown
Year: 0
Subjects: subject: cycle de Construction et de gestion qualité des évaluations du transfert (CGQET)
subject: modèle de Kirkpatrick
subject: table de spécification
subject: formation de base en soins palliatifs
subject: dispositif d’évaluation
subject: modèle de Paramétrage des actions didactiques (PAD)

description: Palliative Vaud est une institution mandatée par la Direction générale de la santé (DGS) du canton de Vaud qui a pour mission d’offrir des formations de base en soins palliatifs aux professionnel·le·s de toutes professions confondues. Dans l’optique de développer une formation initiale adéquate, l’équipe de Palliative Vaud souhaitait se munir d’un outil d’évaluation pertinent qui leur permette d’adopter une démarche qualité dans le processus de contrôle du dispositif. La mise en place du dispositif d’évaluation a entraîné chez les formatrices des remises en question. Suite à ce constat, nous nous sommes intéressés de plus près au « Washback » qu’a pu générer l’élaboration de l’évaluation à l’aide du cycle CGQET, plus précisément, l’étape « 1. Analyse » du processus d’élaboration de l’évaluation. Ainsi, cette recherche tente de répondre à la question suivante: « Quels sont les effets de réflexions menées lors de la co- construction d’une Table de spécifications (TDS) lors de la mise en œuvre du cycle de Construction et de gestion qualité des évaluations du transfert (cycle CGQET) sur le dispositif de formation de base en soins palliatifs ? » Pour répondre à notre question de recherche, des entretiens semi-directifs ont été réalisés avec deux formatrices de palliative vaud et une comparaison de documents a été effectuée. Les résultats obtenus de la comparaison des documents et ainsi que de l’analyse des données récoltés à l’aide du modèle de Paramétrage des actions didactiques (PAD), nous ont permis de mettre en évidence différents éléments. Tout d’abord, nous avons constaté que des modifications ont eu lieu entre la table de spécification (TDS) conçue en 2019 lors de la première itération et la TDS de 2020 lors de la deuxième itération du cycle CGQET. Ensuite, nous avons constaté que les réflexions menées lors de co-construction de la TDS ont d’une certaine manière contribuées à la régulation du dispositif de formation de base de 2020 offerte par palliative vaud. Pour finir, l’analyse démontre que des modifications ont été apportées à l’évaluation des niveaux N2 et N3 conçue en 2020. En conclusion, bien que les faits démontrent que des changements ont bien eu lieu, l’analyse des entretiens relève que les réflexions issues de la mise en œuvre du cycle CGQET ne sont pas la seule cause. En effet, il s’avère que d’autres facteurs ont également joué un rôle dans la remise en question des formatrices.
Beratung und Kontrolle: Ein für den aktivierenden Sozialstaat typisches Handlungsdilemma
Creators: name: Magnin, Chantal
Publisher: name: Zenodo
Year: 2004

description: Kein Abstract vorhanden.
description: + ID der Publikation: hslu_20861 + Art des Beitrages: Wissenschaftliche Medien + Jahrgang: 30 + Sprache: Deutsch + Letzte Aktualisierung: 2019-07-02 11:45:23