cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamical instability in kicked Bose-Einstein condensates: Bogoliubov resonances
Creators: name: Reslen, J.
name: Creffield, C. E.
name: Monteiro, T. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Bose-Einstein condensates subject to short pulses (`kicks') from standing waves of light represent a nonlinear analogue of the well-known chaos paradigm, the quantum kicked rotor. Previous studies of the onset of dynamical instability (ie exponential proliferation of non-condensate particles) suggested that the transition to instability might be associated with a transition to chaos. Here we conclude instead that instability is due to resonant driving of Bogoliubov modes. We investigate the excitation of Bogoliubov modes for both the quantum kicked rotor (QKR) and a variant, the double kicked rotor (QKR-2). We present an analytical model, valid in the limit of weak impulses which correctly gives the scaling properties of the resonances and yields good agreement with mean-field numerics.
description: 8 pages
Quantum Illumination with a Parametrically Amplified Idler
Creators: name: Blakely, Jonathan N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Quantum illumination uses a quantum state of the electromagnetic field to detect the presence of a target against a bright background more sensitively than any classical state. Most often, the quantum state is a two-mode squeezed vacuum consisting of signal and idler modes with a non-zero phase-sensitive cross correlation, which serves as the signature for target detection, and a zero phase-insensitive cross correlation, which means the modes produce no fringes in second order interference. Here it is shown that applying phase-sensitive amplification to the idler modes of a two-mode squeezed vacuum results in a non-zero phase-insensitive cross correlation enabling reception by a simple beam splitter and photodetectors. It is shown that quantum illumination with a parametrically amplified idler has a lower probability of error than an asymptotically optimal classical-state scheme in discriminating between a present target and an absent target with equal prior probabilities.
description: 21 pages, 3 figures
On the two-loop divergences in 6D, ${\cal N}=(1,1)$ SYM theory
Creators: name: Buchbinder, I. L.
name: Ivanov, E. A.
name: Merzlikin, B. S.
name: Stepanyantz, K. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We continue studying $6D, {\cal N}=(1,1)$ supersymmetric Yang-Mills (SYM) theory in the ${\cal N}=(1,0)$ harmonic superspace formulation. Using the superfield background field method we explore the two-loop divergencies of the effective action in the gauge multiplet sector. It is explicitly demonstrated that among four two-loop background-field dependent supergraphs contributing to the effective action, only one diverges off shell. It is also shown that the divergences are proportional to the superfield classical equations of motion and hence vanish on shell. Besides, we have analyzed a possible structure of the two-loop divergences on general gauge and hypermultiplet background.
description: 1+14 pages; v.2: Section 5 added, exposition in Section 1 partly changed; published version
Identifying Undercompensated Groups Defined By Multiple Attributes in Risk Adjustment
Creators: name: Zink, Anna
name: Rose, Sherri
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Risk adjustment in health care aims to redistribute payments to insurers based on costs. However, risk adjustment formulas are known to underestimate costs for some groups of patients. This undercompensation makes these groups unprofitable to insurers and creates incentives for insurers to discriminate. We develop a machine learning method for "group importance" to identify unprofitable groups defined by multiple attributes, improving on the arbitrary nature of existing evaluations. This procedure was designed to evaluate the risk adjustment formulas used in the U.S. health insurance Marketplaces as well as Medicare. We find that a number of previously unidentified groups with multiple chronic conditions are undercompensated in the Marketplaces risk adjustment formula, while groups without chronic conditions tend to be overcompensated in the Marketplaces. The magnitude of undercompensation when defining groups with multiple attributes is larger than with single attributes. No complex groups were found to be consistently under- or overcompensated in the Medicare risk adjustment formula. Our work provides policy makers with new information on potential targets of discrimination in the health care system and a path towards more equitable health coverage.
On an alternative mechanism for the black hole echoes
Creators: name: Liu, Hang
name: Qian, Wei-Liang
name: Liu, Yunqi
name: Wu, Jian-Pin
name: Wang, Bin
name: Yue, Rui-Hong
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravitational wave echoes from the black holes have been suggested as a crucial observable to probe the spacetime in the vicinity of the horizon. In particular, it was speculated that the echoes are closely connected with specific characteristics of the exotic compact objects, and moreover, possibly provide an access to the quantum nature of gravity. Recently, it was shown that the discontinuity in the black hole metric substantially modifies the asymptotical behavior of quasinormal frequencies. In the present study, we proceed further and argue that a discontinuity planted into the metric furnishes an alternative mechanism for the black hole echoes. Physically, the latter may correspond to an uneven matter distribution inside the surrounding halo. To demonstrate the results, we first numerically investigate the temporal evolution of the scalar perturbations around a black hole that possesses a nonsmooth effective potential. It is shown that the phenomenon persists even though the discontinuity can be located further away from the horizon with rather insignificant strength. Besides, we show that the echoes in the present model can be derived analytically based on the modified pole structure of the associated Green function. The asymptotical properties of the quasinormal mode spectrum and the echoes are found to be closely connected, as both features can be attributed to the same origin. In particular, the period of the echoes in the time domain $T$ is shown to be related to the asymptotic spacing between successive poles along the real axis in the frequency domain $Δ(\Reω)$, by a simple relation $\lim\limits_{\Reω\to+\infty}Δ(\Reω) = 2π/T$. Moreover, we discuss possible distinguishment between different echo mechanisms. The potential astrophysical implications of the present findings are also addressed.
description: 14 pages and 9 figures
Gradient Projection Memory for Continual Learning
Creators: name: Saha, Gobinda
name: Garg, Isha
name: Roy, Kaushik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The ability to learn continually without forgetting the past tasks is a desired attribute for artificial learning systems. Existing approaches to enable such learning in artificial neural networks usually rely on network growth, importance based weight update or replay of old data from the memory. In contrast, we propose a novel approach where a neural network learns new tasks by taking gradient steps in the orthogonal direction to the gradient subspaces deemed important for the past tasks. We find the bases of these subspaces by analyzing network representations (activations) after learning each task with Singular Value Decomposition (SVD) in a single shot manner and store them in the memory as Gradient Projection Memory (GPM). With qualitative and quantitative analyses, we show that such orthogonal gradient descent induces minimum to no interference with the past tasks, thereby mitigates forgetting. We evaluate our algorithm on diverse image classification datasets with short and long sequences of tasks and report better or on-par performance compared to the state-of-the-art approaches.
description: Accepted for Oral Presentation at ICLR 2021 https://openreview.net/forum?id=3AOj0RCNC2
The Orbifolds of Permutation-Type as Physical String Systems at Multiples of $c=26$ III. The Spectra of $\hat{c}=52$ Strings
Creators: name: Halpern, M. B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In the second paper of this series, I obtained the twisted BRST systems and extended physical-state conditions of all twisted open and closed $\hat{c} = 52$ strings. In this paper, I supplement the extended physical-state conditions with the explicit form of the extended (twisted) Virasoro generators of all $\hat{c} = 52$ strings, which allows us to discuss the physical spectra of these systems. Surprisingly, all the $\hat{c}=52$ spectra admit an equivalent description in terms of generically-unconventional Virasoro generators at $c=26$. This description strongly supports our prior conjecture that the $\hat{c}=52$ strings are free of negative-norm states, and moreover shows that the spectra of some of the simpler cases are equivalent to those of ordinary untwisted open and closed $c=26$ strings.
description: 23 pages
Effective two-body approach to the hierarchical three-body problem
Creators: name: Kuntz, Adrien
name: Serra, Francesco
name: Trincherini, Enrico
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The motion of three bodies can be solved perturbatively when a tightly bound inner binary is orbited by a distant perturber, giving rise for example to the well-known Kozai-Lidov oscillations. We propose to study the relativistic hierarchical three-body orbits by adapting the Effective Field Theory techniques used in the two-body problem. This allows us to conveniently treat the inner binary as an effective point-particle, thus reducing the complexity of the three-body problem to a simpler spinning two-body motion. We present in details the mapping between the inner binary osculating elements and the resulting spin of the effective point-particle. Our study builds towards a derivation of three-body analytic waveforms.
description: 15 pages, 3 figures. Version accepted for publication in PRD
Simultaneous reconstruction of conductivity, boundary shape and contact impedances in electrical impedance tomography
Creators: name: Agnelli, J. P.
name: Kolehmainen, V.
name: Lassas, M.
name: Ola, P.
name: Siltanen, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 35R30, 65N21, 65J20, 30C35

description: The objective of electrical impedance tomography (EIT) is to reconstruct the internal conductivity of a physical body based on current and voltage measurements at the boundary of the body. In many medical applications the exact shape of the domain boundary and contact impedances are not available. This is problematic as even small errors in the boundary shape of the computation domain or in the contact impedance values can produce large artifacts in the reconstructed images which results in a loss of relevant information. A method is proposed that simultaneously reconstructs the conductivity, the contact impedances and the boundary shape from EIT data. The approach consists of three steps: first, the unknown contact impedances and an anisotropic conductivity reproducing the measured EIT data in a model domain are computed. Second, using isothermal coordinates, a deformation is constructed that makes the conductivity isotropic. The final step minimizes the error of true and reconstructed known geometric properties (like the electrode lengths) using conformal deformations. The feasibility of the method is illustrated with experimental EIT data, with robust and accurate reconstructions of both conductivity and boundary shape.
description: 34 pages, 17 figures; typos corrected, references added
Polarity relevance in flux rope deflections triggered by coronal holes
Creators: name: Sahade, Abril
name: Cécere, Mariana
name: Costa, Andrea
name: Cremades, Hebe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Many observations show that coronal holes (CHs) deviate coronal mass ejections (CMEs) away from them. However, there are some peculiar events reported where the opposite occurs. To contribute to a space weather forecast efforts, in relation to the prediction of CME trajectories, we study the interaction between flux ropes (FRs) and CHs through numerical simulations. We perform 2.5D numerical simulations where FRs and CHs interact with different relative polarity configurations. We also reconstruct the trajectory and magnetic environment of a peculiar event occurred on 30 April 2012. The numerical simulations indicate that at low coronal levels, depending on the relative magnetic field polarity between the FR and the CH, the deflection will be attractive, i.e. the FR moves towards the CH (for anti-aligned polarities) or repulsive, i.e. the FR moves away to the CH (for aligned polarities). This is likely due to the formation of vanishing magnetic field regions or null points, located between the FR and the CH or, at the other side of the FR, respectively. The analysed observational event shows a double-deflection, first departing from the radial direction by approaching the CH and then moving away from it suggesting that the trajectory could result from a magnetic configuration with an anti-aligned polarity. We numerically reproduce the double deflection of the observed event, providing support to this conjecture.
Strong pickup-channel coupling effects in proton scattering: the case of p + Be-10
Creators: name: Mackintosh, R. S.
name: Keeley, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The dynamic polarization potential (DPP) contribution to the effective proton-nucleus interaction, that is due to the coupling of deuteron channels, is evaluated by applying $S_{lj} \to V(r)$ inversion to the elastic channel $S$-matrix from coupled reaction channel calculations of proton elastic scattering. This was done for protons scattering from $^{10}$Be at 12, 13, 14, 15, and 16 MeV; non-orthogonality corrections were included. We find a consistent pattern of a repulsive real and an absorptive imaginary DPP, with the absorption shifted to a larger radius. This is consistent with what has been found for proton scattering from the neutron skin nucleus $^8$He. The DPP is not of a form that can be represented by a renormalization of the bare potential, and has properties suggesting an underlying non-local process. We conclude that deuteron channels cannot be omitted from a full theoretical description of the proton-nucleus interaction (optical potential).
description: 14 pages, 4 figures, RevTeX4, accepted by Phys Rev C
Το θέατρο στη Θεσσαλονίκη τις δεκαετίες του ’50 και ’60: η περίπτωση του Κυριαζή Χαρατσάρη
Creators: name: Αγγελόπουλος, Αναστάσιος Α.
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Κρατικό Θέατρο Βορείου Ελλάδος
Θεσσαλονίκη
Χαρατσάρης Κυριαζής
Δεκαετία ’50 και ’60
National Theatre of Northern Greece
Thessaloniki
Haratsaris Kyriazis
‘50s and ‘60s

description: Σκοπός της διατριβής ήταν η διερεύνηση των συνθηκών, κατά τη δεκαετία του ’50, που οδήγησαν στην ίδρυση του Κρατικού Θεάτρου Βορείου Ελλάδας, αλλά και η μελέτη του έργου και της προσωπικότητας του σκηνοθέτη και θεατρανθρώπου Κυριαζή Χαρατσάρη, από τη γέννηση μέχρι το θάνατό του (1912-1971). Η διατριβή βασίζεται στην μεθοδολογία του πεδίου, όπως αναπτύχθηκε από τον Pierre Bourdieu, και εξετάζει την μεταμόρφωση της κεντρικής ιδεολογίας της ελληνικότητας της πόλης της Θεσσαλονίκης στην ανάγκη ύπαρξης μίας κρατικής θεατρικής σκηνής, που συντελέστηκε από το σύνολο σχεδόν των πνευματικών ανθρώπων της πόλης, το οποίο στη διατριβή ονομάζουμε πνευματική Θεσσαλονίκη. Η πνευματική Θεσσαλονίκη, ως συλλογικό υποκείμενο, θα συναντηθεί στο θεατρικό πεδίο με τον Κυριαζή Χαρατσάρη, θα αποτύχει όμως, εξαιτίας δικών της αντιφάσεων, να ελέγξει τον τρόπο ίδρυσης του Κ.Θ.Β.Ε., όταν αυτό θα συντελεστεί (1961). Από την πλευρά του, ο Κυριαζής Χαρατσάρης, από μία ελπίδα της πνευματικής πόλης για την δημιουργία αυτόνομης θεατρικής ζωής, θα ακολουθήσει μία μοναχική πορεία στο θέατρο, δημιουργώντας ποιοτικές παραστάσεις, μέχρι την όψιμη ένταξή του στον κρατικό οργανισμό και τον αιφνίδιο θάνατό του.
description: The aim of the presented thesis was the study of the conditions, which, during the ‘50s, led on to the National Theatre’s of Northern Greece institution and, at the same time, it presents the work and life of director Kyriazis Haratsaris from his birth to his death (1912-1971). The thesis is based on the methodology of field, as developed by Pierre Bourdieu, and it examines the transformation of Thessaloniki’s central ideology of “hellenicism” [the anxiety for the preservation of the Greek character of the city] to the need for a state theatre, which was contributed by the city’s intellectuals, who our thesis names as “intellectual Thessaloniki”. This collective subject met with Kyriazis Haratsaris on the field of theatre, but it failed to control the way National Theatre of Northern Greece was finally established (1961). On his part, Kyriazis Haratsaris, who used to be the city’s hope for autonomous theatrical life, followed a lonely career, presenting theatre performances of quality, since his late integration at the state organization and his unexpected death.
An evaluation of the Phoenix machine : a new apparatus for the in situ densification of soil
Creators: name: Hitchman, Ross
Publisher: name: University of British Columbia
Year: 2010

description: An in situ densification probe which employs the novel technique of simultaneous vibration and drainage has been developed by Phoenix Engineering for the purpose of in situ improvement of loose, granular soils. It is believed that pumping of water during the densification process offers improved densification capability over systems operating with vibration alone. This study evaluates the performance of the Phoenix system and investigates some of the parameters which influence the effectiveness of the densification process. A testing programme was conducted at a site in the Lower Mainland to assess the instrument. The site consists of a pumped fill overlying a natural medium sand. Field tests were accomplished in both materials. Characterization of the site and treatment evaluation were achieved by using in situ tests. Changes to soil parameters due to densification treatment were examined, taking into account the modification of stresses brought about by the vibro compaction process. It was found that relative densities up to 85-90% could consistantly be achieved. The study highlighted the important contribution of pumping water from the soil during compaction operations. It demonstrated that the Phoenix system can offer improved compaction over alternative commercial compaction systems if probe size and spacing are taken into account. The importance of maintaining an adequate supply of backfill is emphasized. It was found that the machine was well suited to compacting silty sands, both natural and fill, but was unable to cause improvement in silt. The influences of changing probe spacing and pattern were examined. The effects of time spent densifying and changes to soil conditions due to time effects are briefly covered. Finally, the limitations of this study are noted, and recommendations for future research are proposed.
Quasiparticles in Neon using the Faddeev Random Phase Approximation
Creators: name: Barbieri, C.
name: Van Neck, D.
name: Dickhoff, W. H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The spectral function of the closed-shell Neon atom is computed by expanding the electron self-energy through a set of Faddeev equations. This method describes the coupling of single-particle degrees of freedom with correlated two-electron, two-hole, and electron-hole pairs. The excitation spectra are obtained using the Random Phase Approximation, rather than the Tamm-Dancoff framework employed in the third-order algebraic diagrammatic contruction [ADC(3)] method. The difference between these two approaches is studied, as well as the interplay between ladder and ring diagrams in the self-energy. Satisfactory results are obtained for the ionization energies as well as the energy of the ground state with the Faddeev-RPA scheme that is also appropriate for the high-density electron gas.
description: Revised manuscript. The working equations of the Faddeev-RPA method are included in the Appendix
The effect of gradation and fines content on the undrained loading response of sand
Creators: name: Kuerbis, Ralph H.
Publisher: name: University of British Columbia
Year: 2010

description: A systematic study of the effect of grain size, gradation and silt content on the monotonic and cyclic undrained loading response of sand is presented. The objective of the study is to gain an improved understanding of the behaviour of fluvial and hydraulic fill sands. A slurry method of deposition is developed to prepare homogeneous specimens of well-graded and silty sands, and to simulate hydraulic fill or fluvial deposition processes. Various soil gradations consolidated from loosest state of slurry deposition are shown to have similar triaxial compression loading behaviour, but quite different triaxial extension loading behaviour. Well-graded sands are shown to be generally more resistant to soil liquefaction. Loose silty sands are shown to possess similar cyclic strengths regardless of silt content, even though they have widely different void ratios. The concept of sand skeleton void ratio is introduced in order to explain the observed behaviour of silty sands with varying fines content. The effect of soil sample preparation technique on laboratory test results is discussed. Water pluviated sand is shown to have a characteristic fabric and strength anisotropy. An interpretation of the factors which contribute to sand fabric and strength anisotropy is provided. The practical performance of water pluviated sand is discussed.
Normalization of Type IIB D-instanton Amplitudes
Creators: name: Sen, Ashoke
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compute the normalization of single D-instanton amplitudes in type IIB string theory and show that the result agrees with the prediction of S-duality due to Green and Gutperle.
description: LaTeX file, 46 pages; v2: typos corrected; v3: minor clarifications added
Additional file 3 of Association of the gallbladder or biliary diseases with dipeptidyl peptidase 4 inhibitors in patients with type 2 diabetes: a meta-analysis of randomized controlled trials
Creators: name: Yu, Meng
name: Yang, Zheng
name: Chen, Chongxin
name: Lv, Yuhuan
name: Xiang, Linyu
name: Zhao, Subei
name: Li, Rong
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 3. Characteristics of the 75 studies included in the meta-analysis.
Electrical control of spin relaxation in a quantum dot
Creators: name: Amasha, S.
name: MacLean, K.
name: Radu, Iuliana P.
name: Zumbuhl, D. M.
name: Kastner, M. A.
name: Hanson, M. P.
name: Gossard, A. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate electrical control of the spin relaxation time T_1 between Zeeman split spin states of a single electron in a lateral quantum dot. We find that relaxation is mediated by the spin-orbit interaction, and by manipulating the orbital states of the dot using gate voltages we vary the relaxation rate W= (T_1)^-1 by over an order of magnitude. The dependence of W on orbital confinement agrees with theoretical predictions and from these data we extract the spin-orbit length. We also measure the dependence of W on magnetic field and demonstrate that spin-orbit mediated coupling to phonons is the dominant relaxation mechanism down to 1T, where T_1 exceeds 1s.
description: 4 pages, 3 figures
Discrete Nonholonomic Lagrangian Systems on Lie Groupoids
Creators: name: Iglesias, D.
name: Marrero, J. C.
name: de Diego, D. Martin
name: Martinez, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: This paper studies the construction of geometric integrators for nonholonomic systems. We derive the nonholonomic discrete Euler-Lagrange equations in a setting which permits to deduce geometric integrators for continuous nonholonomic systems (reduced or not). The formalism is given in terms of Lie groupoids, specifying a discrete Lagrangian and a constraint submanifold on it. Additionally, it is necessary to fix a vector subbundle of the Lie algebroid associated to the Lie groupoid. We also discuss the existence of nonholonomic evolution operators in terms of the discrete nonholonomic Legendre transformations and in terms of adequate decompositions of the prolongation of the Lie groupoid. The characterization of the reversibility of the evolution operator and the discrete nonholonomic momentum equation are also considered. Finally, we illustrate with several classical examples the wide range of application of the theory (the discrete nonholonomic constrained particle, the Suslov system, the Chaplygin sleigh, the Veselova system, the rolling ball on a rotating table and the two wheeled planar mobile robot).
description: 45 pages
Spectral Properties of Confining Superexponential Potentials
Creators: name: Schmelcher, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We explore the spectral properties and behaviour of confining superexponential potentials. Several prototypes of these highly nonlinear potentials are analyzed in terms of the eigenvalues and eigenstates of the underlying stationary Schrödinger equation up to several hundreds of excited states. A generalization of the superexponential self-interacting oscillator shows a scaling behaviour of the spacing of the eigenvalues which turns into an alternating behaviour for the power law modified oscillator. Superexponential potentials with an oscillating power show a very rich spectral structure with varying amplitudes and wave vectors. In the parity symmetric case doublets of near degenerate energy eigenvalues emerge in the spectrum. The corresponding eigenstates are strongly localized in the outer wells of the potential and occur as even-odd pairs which are interspersed into the spectrum of delocalized states. We provide an outlook on future perspectives including the possibility to use these features for applications in e.g. cold atom physics.
Observation of Spin-glass-like Behavior in SrRuO3 Epitaxial Thin Films
Creators: name: Palai, R
name: Huhtinen, H
name: Katiyar, R. S.
name: Scott, J. F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report the observation of spin-glass-like behavior and strong magnetic anisotropy in extremely smooth (~1-3 Å) roughness) epitaxial (110) and (010) SrRuO3 thin films. The easy axis of magnetization is always perpendicular to the plane of the film (unidirectional) irrespective of crystallographic orientation. An attempt has been made to understand the nature and origin of spin-glass behavior, which fits well with Heisenberg model.
description: 5 pages, 5 Figures
Pseudogap and charge density waves in two dimensions
Creators: name: Borisenko, S. V.
name: Kordyuk, A. A.
name: Yaresko, A. N.
name: Zabolotnyy, V. B.
name: Inosov, D. S.
name: Schuster, R.
name: Buechner, B.
name: Weber, R.
name: Follath, R.
name: Patthey, L.
name: Berger, H.
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: An interaction between electrons and lattice vibrations (phonons) results in two fundamental quantum phenomena in solids: in three dimensions it can turn a metal into a superconductor whereas in one dimension it can turn a metal into an insulator. In two dimensions (2D) both superconductivity and charge-density waves (CDW) are believed to be anomalous. In superconducting cuprates, critical transition temperatures are unusually high and the energy gap may stay unclosed even above these temperatures (pseudogap). In CDW-bearing dichalcogenides the resistivity below the transition can decrease with temperature even faster than in the normal phase and a basic prerequisite for the CDW, the favourable nesting conditions (when some sections of the Fermi surface appear shifted by the same vector), seems to be absent. Notwithstanding the existence of alternatives to conventional theories, both phenomena in 2D still remain the most fascinating puzzles in condensed matter physics. Using the latest developments in high-resolution angle-resolved photoemission spectroscopy (ARPES) here we show that the normal-state pseudogap also exists in one of the most studied 2D examples, dichalcogenide 2H-TaSe2, and the formation of CDW is driven by a conventional nesting instability, which is masked by the pseudogap. Our findings reconcile and explain a number of unusual, as previously believed, experimental responses as well as disprove many alternative theoretical approaches. The magnitude, character and anisotropy of the 2D-CDW pseudogap are intriguingly similar to those seen in superconducting cuprates.
description: 14 pages including figures and supplementary information
Supersymmetric Field Theory Based on Generalized Uncertainty Principle
Creators: name: Shibusa, Yuuichirou
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct a quantum theory of free fermion field based on the generalized uncertainty principle using supersymmetry as a guiding principle. A supersymmetric field theory with a real scalar field and a Majorana fermion field is given explicitly and we also find that the supersymmetry algebra is deformed from an usual one.
description: 9 pages
Die Bedeutung der europäischen Beschäftigungspolitik für den Strategiewandel der deutschen Gewerkschaften in der Phase der „Eurosklerose“ (1973 –1986)
Creators: name: Seifen, Stephan
Publisher: name: Moving the Social
Year: 2015

description: The article deals with the evolution towards a European social agenda during the period of “Eurosclerosis” and its relevance for a change in German trade unions’ strategy. It follows the thesis that German trade unions changed their attitude concerning Europeanisation from an only complementary national strategy to a real multilevel strategy, shortly after the evolution of social policy issues like the European employment policy and the expansion of participation rights at the European level during the 1970s. Hence, the article includes a short description of German trade unions’ evolution at national and European level by the time and beyond, an overview of the evolution of social issues at European level; it discusses national restrictions and problems and tries to work out a scientific classification applying a political science theory to work out coherences and interdependencies of important actors, parameters and strategies.
description: Moving the Social, Vol 42 (2009): Deutsche Gewerkschaften und europäische Integration im 20. Jahrhundert
Shock probes in a one-dimensional Katz-Lebowitz-Spohn model
Creators: name: Chatterjee, Sakuntala
name: Barma, Mustansir
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider shock probes in a one-dimensional driven diffusive medium with nearest neighbor Ising interaction (KLS model). Earlier studies based on an approximate mapping of the present system to an effective zero-range process concluded that the exponents characterising the decays of several static and dynamical correlation functions of the probes depend continuously on the strength of the Ising interaction. On the contrary, our numerical simulations indicate that over a substantial range of the interaction strength, these exponents remain constant and their values are the same as in the case of no interaction (when the medium executes an ASEP). We demonstrate this by numerical studies of several dynamical correlation functions for two probes and also for a macroscopic number of probes. Our results are consistent with the expectation that the short-ranged correlations induced by the Ising interaction should not affect the large time and large distance properties of the system, implying that scaling forms remain the same as in the medium with no interactions present.
description: Accepted in Physical Review E
Optimal flexibility for conformational transitions in macromolecules
Creators: name: Neher, Richard A.
name: Mobius, Wolfram
name: Frey, Erwin
name: Gerland, Ulrich
Publisher: name: arXiv
Year: 2007
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: Conformational transitions in macromolecular complexes often involve the reorientation of lever-like structures. Using a simple theoretical model, we show that the rate of such transitions is drastically enhanced if the lever is bendable, e.g. at a localized "hinge''. Surprisingly, the transition is fastest with an intermediate flexibility of the hinge. In this intermediate regime, the transition rate is also least sensitive to the amount of "cargo'' attached to the lever arm, which could be exploited by molecular motors. To explain this effect, we generalize the Kramers-Langer theory for multi-dimensional barrier crossing to configuration dependent mobility matrices.
description: 4 pages, 4 figures
Additional file 5 of Association of the gallbladder or biliary diseases with dipeptidyl peptidase 4 inhibitors in patients with type 2 diabetes: a meta-analysis of randomized controlled trials
Creators: name: Yu, Meng
name: Yang, Zheng
name: Chen, Chongxin
name: Lv, Yuhuan
name: Xiang, Linyu
name: Zhao, Subei
name: Li, Rong
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 5. Funnel plot for the meta-analysis of the association between DPP4i and risk of gallbladder or biliary diseases.
The High Authority of the ECSC, the European Network of Trade Unions and the DGB: Ideas, Strategies and Achievements
Creators: name: Suzuki, Hitoshi
Publisher: name: Moving the Social
Year: 2015

description: This chapter examines how the trade unions of the six ECSC Member States constructed a European network in order to support the Schuman Plan and to influence the decisionmaking of the ECSC based on workers’ interests. The unions agreed to support the Schuman Plan and aimed at achieving direct participation in the Paris negotiations and in the High Authority of the ECSC. The DGB was one of the few unions that were able to send members regularly into government delegations, and therefore played an indispensable role in both influencing the policies of the ECSC and developing the European network of trade unions: the ERO of the ICFTU, the Committee of 21 and the Bureau de Liaison. After achieving participation, the unions lobbied the High Authority under Jean Monnet’s presidency and jointly claimed that dismantling coal cartels would cause mass unemployment in coalmines and would damage the economy. The unions successfully postponed the anticartel policy of the ECSC, but faced a split in supporting further integration.
description: Moving the Social, Vol 42 (2009): Deutsche Gewerkschaften und europäische Integration im 20. Jahrhundert
AFM Imaging of SWI/SNF action: mapping the nucleosome remodeling and sliding
Creators: name: Montel, Fabien
name: Fontaine, Emeline
name: St-Jean, Philippe
name: Castelnovo, Martin
name: Moskalenko-Faivre, Cendrine
Publisher: name: arXiv
Year: 2007
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We propose a combined experimental (Atomic Force Microscopy) and theoretical study of the structural and dynamical properties of nucleosomes. In contrast to biochemical approaches, this method allows to determine simultaneously the DNA complexed length distribution and nucleosome position in various contexts. First, we show that differences in the nucleo-proteic structure observed between conventional H2A and H2A.Bbd variant nucleosomes induce quantitative changes in the in the length distribution of DNA complexed with histones. Then, the sliding action of remodeling complex SWI/SNF is characterized through the evolution of the nucleosome position and wrapped DNA length mapping. Using a linear energetic model for the distribution of DNA complexed length, we extract the net wrapping energy of DNA onto the histone octamer, and compare it to previous studies.
description: 25 pages,5 figures, to appear in Biophysical Journal
วัณโรคในผู้ต้องขังเรือนจำในภาคเหนือตอนบนประเทศไทย
Creators: name: เจริญศรี แซ่ตั้ง
Publisher: name: กองนวัตกรรมและวิจัย กรมควบคุมโรค
Year: 2562
Subjects: วัณโรค
เรือนจำ

description: วารสารควบคุมโรค, 45, 2, 149-160
Approaches to transnational industrial relations history
Creators: name: Fetzer, Thomas
Publisher: name: Moving the Social
Year: 2015

description: Inspired by the “transnational turn” in history writing, this essay reviews recent scholarship dealing with industrial relations from a transnational perspective. The essay starts with conceptual reflections on the merits and potential pitfalls of a transnational approach, and suggests that that such an approach should include not only the study of actors, networks and processes at the transnational level (top down perspective), but also that of the impact of transnational factors on industrial relations in specific countries and locations (bottom up perspective). The main part of the essay critically reviews the available scholarship with regard to this two-pronged agenda and makes suggestions for future research.
description: Moving the Social, Vol 47 (2012): Essays on social history and the history of social movements
Connecting Topological Anderson and Mott Insulators in Disordered Interacting Fermionic Systems
Creators: name: Zhang, Guo-Qing
name: Tang, Ling-Zhi
name: Zhang, Ling-Feng
name: Zhang, Dan-Wei
name: Zhu, Shi-Liang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The topological Anderson and Mott insulators are two phases that have so far been separately and widely explored beyond topological band insulators. Here we combine the two seemingly different topological phases into a system of spin-1/2 interacting fermionic atoms in a disordered optical lattice. We find that the topological Anderson and Mott insulators in the noninteracting and clean limits can be adiabatically connected without gap closing in the phase diagram of our model. Lying between the two phases, we uncover a disordered correlated topological insulator, which is induced from a trivial band insulator by the combination of disorder and interaction, as the generalization of topological Anderson insulators to the many-body interacting regime. The phase diagram is determined by computing various topological properties and confirmed by unsupervised and automated machine learning. We develop an approach to provide a unified and clear description of topological phase transitions driven by interaction and disorder. The topological phases can be detected from disorder/interaction induced edge excitations and charge pumping in optical lattices.
description: 6+9 pages, 4+9 figures
Gestapo und kommunistischer Widerstand im Rheinland. Thomas Gebauer: Das KPD-Dezernat der Gestapo Düsseldorf, Hamburg: disserta Verlag 2011
Creators: name: Eumann, Ulrich
Publisher: name: Moving the Social
Year: 2015

description: Thomas Gebauer: Das KPD-Dezernat der Gestapo Düsseldorf, Hamburg: disserta Verlag 2011.
description: Moving the Social, Vol 47 (2012): Essays on social history and the history of social movements
Freizeitvergnügen städtischer Unterschichten in Südamerika. Sönke Hansen: Die Arbeiterschichten von Lima (1940–1960). Eine Kultur- und Freizeitgeschichte, Berlin: LIT Verlag 2011
Creators: name: Brändle, Fabian
Publisher: name: Moving the Social
Year: 2015

description: Sönke Hansen: Die Arbeiterschichten von Lima (1940–1960). Eine Kultur- und Freizeitgeschichte, Berlin: LIT Verlag 2011.
description: Moving the Social, Vol 47 (2012): Essays on social history and the history of social movements
Besinnen auf die eigene Kraft. Rainer Holze/Siegfried Prokop (Hg.): Basisdemokratie und Arbeiterbewegung. Günter Benser zum 80. Geburtstag, Berlin: Karl Dietz Verlag 2011
Creators: name: Kaiser, Gerd
Publisher: name: Moving the Social
Year: 2015

description: Rainer Holze/Siegfried Prokop (Hg.): Basisdemokratie und Arbeiterbewegung. Günter Benser zum 80. Geburtstag, Berlin: Karl Dietz Verlag 2011.
description: Moving the Social, Vol 47 (2012): Essays on social history and the history of social movements
Additional file 1 of How should we evaluate sweetened beverage tax policies? A review of worldwide experience
Creators: name: Ng, Shu Wen
name: Colchero, M. Arantxa
name: White, Martin
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1.
Vanishing of the upper critical field in Bi_2Sr_2CaCu_2O_{8+δ} from Landau-Ott scaling
Creators: name: Doria, Mauro M.
name: Romaguera, Antonio R. de C.
name: Salem-Sugui, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We apply Landau-Ott scaling to the reversible magnetization data of Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$ published by Y. Wang et al. [\emph{Phys. Rev. Lett. \textbf{95} 247002 (2005)}] and find that the extrapolation of the Landau-Ott upper critical field line vanishes at a critical temperature parameter, T^*_c, a few degrees above the zero resistivity critical temperature, T_c. Only isothermal curves below and near to T_c were used to determine this transition temperature. This temperature is associated to the disappearance of the mixed state instead of a complete suppression of superconductivity in the sample.
description: 3 figures
title: OPTIMIZATION OF APPROACHES TO PERFORMING MESOCOLONECTOMY  WITH LYMPHADENECTOMY FOR TUMOR GENESIS RIGHT-SIDED  COLONIC OBSTRUCTION
Creators: name: Bashankaev, Badma N.
name: Sidorova, Aleksandra V.
name: Yunusov, Bulat T.
name: Arkharov, Aleksandr V.
Publisher: name: Astrakhan State Medical University
Year: 2021

description: The combined prospective-retrospective study analyzed the results of the treatment of 157 patients operated on for obstructive intestinal obstruction due to tumours of the right colon. In the control group (81 patients), risk factors for the development of complications and “nonradicality” of surgical interventions, D2 lymphadenectomy, as well as causes that worsen the general prognosis and long-term oncological results were identified. In the main group, 76 pa-tients underwent a developed complex diagnostic and treatment algorithm and a modified technique of laparoscopic mesocolonectomy with D3 lymph node dissection. The average number of affected lymph nodes in patients of the main group with identified metastases was 17,4 ± 4,2 compared to 10,2 ± 4,6 in patients in the control group.In both groups, the greatest number of complications was observed in patients with decompensated intestinal obstruction and multiple organ failure or a clinic of peritonitis. Intraoperative and postoperative complications in patients in the main and control groups were comparable and did not differ statistically (p > 0,05). A smaller number of anastomotic leaks in patients of the main group (n = 3; 3,9 %) compared with patients in the control group (n = 5; 6,2 %) is associated with the use of intraoperative decompression of the colon.The proposed D3 lymph node dissection technique allows increasing the number of removed lymph nodes without impairing the immediate results of patient treatment.
Key words: colon, cancer, acute colon obstruction, mesocolonectomy, right-sided hemicolectomy, lymphadenectomy, tumour, complications.
Guilt by Association. Julius Barmat and German Democracy
Creators: name: Zatlin, Jonathan
Publisher: name: Moving the Social
Year: 2015

description: Although largely forgotten today, the so-called “Barmat Affair” resulted in the longest trial in the Weimar Republic’s short history and one of its most heated scandals. The antidemocratic right seized upon the ties that Julius Barmat, a Jewish businessman of Ukrainian provenance, maintained to prominent socialists to discredit Weimar by equating democracy with corruption, corruption with Jews, and Jews with socialists. The left responded to the right’s antidemocratic campaign with reasoned refutations of the idea that democracy inevitably involved graft. Few socialist or liberal politicians, however, responded to the right’s portrayal of Weimar as “Jewish.” The failure of the left to identify antisemitism as a threat to democracy undermined attempts to democratize the German judiciary and ultimately German society itself.
description: Moving the Social, Vol 47 (2012): Essays on social history and the history of social movements
ความสัมพันธ์ระหว่างกลยุทธ์การจัดการองค์กรสมัยใหม่และความได้เปรียบทางการแข่งขันของธุรกิจโรงแรมในประเทศไทย
Creators: name: กนกอร อ่อนเรือง
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: กลยุทธ์การจัดการองค์กรสมัยใหม่, ความได้เปรียบทางการแข่งขัน, ธุรกิจโรงแรมในประเทศไทย

description: 6, 32, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม