cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Vortex trapping in suddenly connected Bose-Josephson junctions
Creators: name: Ghosh, Parag
name: Sols, Fernando
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate the problem of vortex trapping in cyclically coupled Bose-Josephson junctions. Starting with $N$ independent BECs we couple the condensates through Josephson links and allow the system to reach a stable circulation by adding a dissipative term in our semiclassical equations of motion. The central question we address is what is the probability to trap a vortex with winding number $m$. Our numerical simulations reveal that the final distribution of winding numbers is narrower than the initial distribution of total phases, indicating an increased probability for no-vortex configurations. Further, the nonlinearity of the problem manifests itself in the somewhat counter-intuitive result that it is possible to obtain a non-zero circulation starting with zero total phase around the loop. The final width of the distribution of winding numbers for $N$ sites scales as $λN^α$, where $α=0.47\pm 0.01$ and $λ<0.67$ (value predicted for the initial distribution) indicating a shrinking of the final distribution. The actual value of $λ$ is found to depend on the strength of dissipation.
description: 4 pages, 5 figures
An empirical model for the beams of radio pulsars
Creators: name: Karastergiou, A.
name: Johnston, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Motivated by recent results on the location of the radio emission in pulsar magnetospheres, we have developed a model which can account for the large diversity found in the average profile shapes of pulsars. At the centre of our model lies the idea that radio emission at a particular frequency arises from a wide range of altitudes above the surface of the star and that it is confined to a region close to the last open field lines. We assert that the radial height range over which emission occurs is responsible for the complex average pulse shapes rather than the transverse (longitudinal) range proposed in most current models. By implementing an abrupt change in the height range to discriminate between young, short-period, highly-energetic pulsars and their older counterparts, we obtain the observed transition between the simple and complex average pulse profiles observed in each group respectively. Monte Carlo simulations are used to demonstrate the match of our model to real observations.
description: Accepted for publication in MNRAS
The behavior of non-linear anisotropies in bouncing Bianchi I models of loop quantum cosmology
Creators: name: Chiou, Dah-Wei
name: Vandersloot, Kevin
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In homogeneous and isotropic loop quantum cosmology, gravity can behave repulsively at Planckian energy densities leading to the replacement of the big bang singularity with a big bounce. Yet in any bouncing scenario it is important to include non-linear effects from anisotropies which typically grow during the collapsing phase. We investigate the dynamics of a Bianchi I anisotropic model within the framework of loop quantum cosmology. Using effective semi-classical equations of motion to study the dynamics, we show that the big bounce is still predicted with only differences in detail arising from the inclusion of anisotropies. We show that the anisotropic shear term grows during the collapsing phase, but remains finite through the bounce. Immediately following the bounce, the anisotropies decay and with the inclusion of matter with equation of state $w < +1$, the universe isotropizes in the expanding phase.
description: 15 pages, 10 figures
A study of auto-anti-idiotypes to BSA
Creators: name: Forsyth, Robert Bruce
Publisher: name: University of British Columbia
Year: 2010

description: In order to study the idiotypic relationships between the antibody populations produced in different species during normal immune responses to ordinary protein antigens, we raised immune sera in mice and chickens using three protein antigens: Bovine serum albumin (BSA), keyhole limpet hemocyanin (KLH) and diphtheria toxoid (DT). An avidin-biotin ELISA was used to measure idiotypic binding between antibody populations from these sera. We found that the chicken sera contained auto-anti-idiotypes (AAI) against antigen specific antibodies which were present in the same serum and which co-purified with those antibodies on antigen-sepharose columns. These AAI were present in secondary response chicken anti-BSA serum at levels comparable to that of the anti-BSA antibody. The chicken AAI also react specifically with Ids in mouse anti-BSA serum. Mouse anti-BSA serum completely inhibited the binding between the chicken Id and AAI. This similarity between the idiotypes of whole populations of antibodies produced in two distantly related species, in the absence of any manipulation with idiotypic or anti-idiotypic reagents, suggests that the AAI detected in this way are internal image antibodies. It indicates there is positive selection for such auto-anti-idiotypes to be internal images.
Thermodynamic properties of Bi2Sr2CaCu2O8 calculated from the electronic dispersion
Creators: name: Storey, J. G.
name: Tallon, J. L.
name: Williams, G. V. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The electronic dispersion for Bi2Sr2CaCu2O(8+d) has been determined from angle-resolved photoelectron spectroscopy (ARPES). From this dispersion we calculate the entropy and superfluid density. Even with no adjustable parameters we obtain an exceptional match with experimental data across the entire phase diagram, thus indirectly confirming both the ARPES and thermodynamic data. The van Hove singularity is crossed in the overdoped region giving a distinctive linear-in-T temperature dependence in the superfluid density there.
description: 5 pages, 4 figures, submitted to Physical Review Letters
A simple derivation of the Overlap Dirac Operator
Creators: name: Fosco, C. D.
name: Torroba, G.
name: Neuberger, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive the vector-like four dimensional overlap Dirac operator starting from a five dimensional Dirac action in the presence of a delta-function space-time defect. The effective operator is obtained by first integrating out all the fermionic modes in the fixed gauge background, and then identifying the contribution from the localized modes as the determinant of an operator in one dimension less. We define physically relevant degrees of freedom on the defect by introducing an auxiliary defect-bound fermion field and integrating out the original five dimensional bulk field.
description: 9 pages, LaTeX
How Large is the Intrinsic Flux Noise of a Magnetic Flux Quantum, of Half a Flux Quantum and of a Vortex-Free Superconductor?
Creators: name: Mannhart, J.
name: Kopp, T.
name: Barash, Y. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: This article addresses the question whether the magnetic flux of stationary vortices or of half flux quanta generated by frustrated superconducting rings is noisy. It is found that the flux noise generated intrinsically by a superconductor is, in good approximation, not enhanced by stationary vortices. Half flux quanta generated by $π$-rings are characterized by considerably larger noise.
description: 11 pages, 3 figures. in: A. Bussmann-Holder, H. Keller (Eds.) High Tc Superconductors and Related Transition Metal Oxides, Springer, 237-242; also to be published in: Journal of Superconductivity (2007)
Induced inflation from a 5D purely kinetic scalar field formalism on warped product spaces
Creators: name: Aguilar, Jose Edgar Madriz
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Considering a separable and purely kinetic 5D scalar field on a warped product metric background we propose a new and more general approach for inducing 4D scalar potentials on a 4D constant foliation of the 5D space-time. We obtain an induced potential for a true 4D scalar field instead of a potential for an effective 4D scalar field. In this formalism we can recover the usual 4D inflationary formalism with a geometrically induced inflationary potential. In addition the quantum confinement of the inflaton modes is obtained naturally from the model for at least a class of warping factors. Besides the 4D inflationary physics that results of this formalism is independent of the 4D-hypersurface chosen.
description: 8 pages Accepted for publication in European Physical Journal C
Hessian Aware Quantization of Spiking Neural Networks
Creators: name: Lui, Hin Wai
name: Neftci, Emre
Publisher: name: arXiv
Year: 2021
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: To achieve the low latency, high throughput, and energy efficiency benefits of Spiking Neural Networks (SNNs), reducing the memory and compute requirements when running on a neuromorphic hardware is an important step. Neuromorphic architecture allows massively parallel computation with variable and local bit-precisions. However, how different bit-precisions should be allocated to different layers or connections of the network is not trivial. In this work, we demonstrate how a layer-wise Hessian trace analysis can measure the sensitivity of the loss to any perturbation of the layer's weights, and this can be used to guide the allocation of a layer-specific bit-precision when quantizing an SNN. In addition, current gradient based methods of SNN training use a complex neuron model with multiple state variables, which is not ideal for compute and memory efficiency. To address this challenge, we present a simplified neuron model that reduces the number of state variables by 4-fold while still being compatible with gradient based training. We find that the impact on model accuracy when using a layer-wise bit-precision correlated well with that layer's Hessian trace. The accuracy of the optimal quantized network only dropped by 0.2%, yet the network size was reduced by 58%. This reduces memory usage and allows fixed-point arithmetic with simpler digital circuits to be used, increasing the overall throughput and energy efficiency.
Constructing Qudits from Infinite Dimensional Oscillators by Coupling to Qubits
Creators: name: Liu, Yuan
name: Sinanan-Singh, Jasmine
name: Kearney, Matthew T.
name: Mintzer, Gabriel
name: Chuang, Isaac L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: An infinite dimensional system such as a quantum harmonic oscillator offers a potentially unbounded Hilbert space for computation, but accessing and manipulating the entire state space requires a physically unrealistic amount of energy. When such a quantum harmonic oscillator is coupled to a qubit, for example via a Jaynes-Cummings interaction, it is well known that the total Hilbert space can be separated into independently accessible subspaces of constant energy, but the number of subspaces is still infinite. Nevertheless, a closed four-dimensional Hilbert space can be analytically constructed from the lowest energy states of the qubit-oscillator system. We extend this idea and show how a $d$-dimensional Hilbert space can be analytically constructed, which is closed under a finite set of unitary operations resulting solely from manipulating standard Jaynes-Cummings Hamiltonian terms. Moreover, we prove that the first-order sideband pulses and carrier pulses comprise a universal set for quantum operations on the qubit-oscillator qudit. This work suggests that the combination of a qubit and a bosonic system may serve as hardware-efficient quantum resources for quantum information processing.
description: 15 pages, 5 figures
Aedes-AI: Neural Network Models of Mosquito Abundance
Creators: name: Kinney, Adrienne C.
name: Current, Sean
name: Lega, Joceline
Publisher: name: arXiv
Year: 2021
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Machine Learning (cs.LG)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: We present artificial neural networks as a feasible replacement for a mechanistic model of mosquito abundance. We develop a feed-forward neural network, a long short-term memory recurrent neural network, and a gated recurrent unit network. We evaluate the networks in their ability to replicate the spatiotemporal features of mosquito populations predicted by the mechanistic model, and discuss how augmenting the training data with time series that emphasize specific dynamical behaviors affects model performance. We conclude with an outlook on how such equation-free models may facilitate vector control or the estimation of disease risk at arbitrary spatial scales.
The scalars $a_0(980)$ and $f_0(980)$ in the process $D_s^+ \to K^{+} K^{-} π^{+}$
Creators: name: Wang, Jun-Ya
name: Duan, Man-Yu
name: Wang, Guan-Ying
name: Li, De-Min
name: Liu, Li-Juan
name: Wang, En
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we have investigated the process $D_s^+\to K^+ K^- π^+$, taking into account the contributions from the $S$-wave pseudoscalar-pseudoscalar interaction within the chiral unitary approach, and also the intermediate $ϕ$ resonance. By analyzing the BESIII and {\it BABAR} measurements, we conclude that the $f_0(980)$ state, dynamically generated from the $S$-wave pseudoscalar-pseudoscalar interaction, gives the dominant contribution close to the $K^+K^-$ threshold in the $K^+K^-$ invariant mass distribution of the decay $D_s^+\to K^+ K^- π^+$ in $S$-wave. On the other hand, our results imply that the lineshape adopted by BESIII and {\it BABAR} for the resonances $a_0(980)$ and $f_0(980)$ is not advisable in the fit to the data close to the $K^+K^-$ threshold.
description: 9 pages, 9 figures, 1 table, Published in Phys.Lett.B 821(2021)136617
Η ανάπτυξη του φωνητικού συστήματος κατά την εκμάθηση της γερμανικής ως ξένης γλώσσας: επίδραση ενδογλωσσικών και εξωγλωσσικών παραγόντων
Creators: name: Νικολακάκης, Ευστράτιος Η.
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Φωνητική
Φωνολογία
Εκμάθηση – κατάκτηση δεύτερης – ξένης γλώσσας
Γλωσσική ανάπτυξη
Φωνητική ανάπτυξη
Phonetics
Phonology
Second – foreign language learning – acquisition
Language development
Phonetic development

description: Σκοπός της διατριβής ήταν η μελέτη της ανάπτυξης του φωνητικού συστήματος ελλήνων μαθητών της γερμανικής αποκλειστικά ως ξένης γλώσσας. Αναφερθήκαμε αναλυτικά στα μοντέλα ανάπτυξης του φωνητικού συστήματος μιας Γ2 και στις προβλέψεις στις οποίες προβαίνουν, καθώς επίσης και στην επίδραση εξωγλωσσικών παράγοντων, όπως η ηλικία, η εμπειρία, το φύλο, η διδασκαλία της Γ2, η χρήση της Γ2 και τα κίνητρα εκμάθησης των ομιλητών της Γ2. Η εγκυρότητα των προβλέψεων στις οποίες προβαίνουν τα μοντέλα αυτά, καθώς επίσης και η επίδραση των παραπάνω παραγόντων εξετάστηκαν εμπειρικά με την συμμετοχή ελλήνων μαθητών της γερμανικής. Οι μαθητές εξετάστηκαν σε ένα πλήθος ασκήσεων και ιδιαίτερα στην παραγωγή των μπροστινών φωνηέντων της γερμανικής γλώσσας. Επιπλέον, ελέγχθηκε η επίδραση του γλωσσικού ύφους στην προφορά των ομιλητών μιας Γ2.
description: The aim of the thesis was to study the development of the phonetic system by Greek students of German as a foreign language. We discussed in detail the models of the phonetic system of a L2 and the predictions made by them, as well as the influence on the phonetic system of extra lingual factors such as age, experience, gender, teaching L2, the use of L2 and motivation of L2 learners. The validity of the predictions which these models make, as well as the effect of the above mentioned factors was examined empirically with the participation of Greek students of German. The students were tested in a number of exercises, particularly in the production of German front vowels. Moreover, we tested the effect of speech style on L2 speakers’ pronunciation.
Coupling biochemistry and mechanics in cell adhesion: a model for inhomogeneous stress fiber contraction
Creators: name: Besser, A.
name: Schwarz, U. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Biological sciences

description: Biochemistry and mechanics are closely coupled in cell adhesion. At sites of cell-matrix adhesion, mechanical force triggers signaling through the Rho-pathway, which leads to structural reinforcement and increased contractility in the actin cytoskeleton. The resulting force acts back to the sites of adhesion, resulting in a positive feedback loop for mature adhesion. Here we model this biochemical-mechanical feedback loop for the special case when the actin cytoskeleton is organized in stress fibers, which are contractile bundles of actin filaments. Activation of myosin II molecular motors through the Rho-pathway is described by a system of reaction-diffusion equations, which are coupled into a viscoelastic model for a contractile actin bundle. We find strong spatial gradients in the activation of contractility and in the corresponding deformation pattern of the stress fiber, in good agreement with experimental findings.
description: Revtex, 35 pages, 13 Postscript figures included, in press with New Journal of Physics, Special Issue on The Physics of the Cytoskeleton
Swampland Conditions for Higher Derivative Couplings from CFT
Creators: name: Kundu, Sandipan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: There are effective field theories that cannot be embedded in any UV complete theory. We consider scalar effective field theories, with and without dynamical gravity, in $D$-dimensional anti-de Sitter (AdS) spacetime with large radius and derive precise bounds (analytically) on the coupling constants of higher derivative interactions $ϕ^2\Box^kϕ^2$ by only requiring that the dual CFT obeys the standard conformal bootstrap axioms. In particular, we show that all such coupling constants, for even $k\ge 2$, must satisfy positivity, monotonicity, and log-convexity conditions in the absence of dynamical gravity. Inclusion of gravity only affects constraints involving the $ϕ^2\Box^2ϕ^2$ interaction which now can have a negative coupling constant. Our CFT setup is a Lorentzian four-point correlator in the Regge limit. We also utilize this setup to derive constraints on effective field theories of multiple scalars. We argue that similar analysis should impose nontrivial constraints on the graviton four-point scattering amplitude in AdS.
description: 37 pages + appendices, multiple figures
Electric polarization and nonlinear optical effects in noncentrosymmetric magnets
Creators: name: Morimoto, Takahiro
name: Kitamura, Sota
name: Okumura, Shun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study electric polarization and nonlinear optical effects in spin systems with broken inversion symmetry. We apply strong coupling expansion to the underlying electronic Hamiltonians, and systematically derive expressions for electric polarization in spin systems that are represented in terms of spin operators. The magnon representation of the obtained electric polarization operator allows us to compute linear and nonlinear optical responses by the standard diagrammatic method. We apply our formalism to Heisenberg model with alternating coupling constants and $J_1$-$J_2$ model with inversion symmetry breaking. We demonstrate that these inversion broken spin systems support dc current flow upon magnon excitations which arises from the shift current mechanism.
description: 17 pages, 4 figures
Observations of interior whispering gallery modes in asymmetric optical resonators with rational caustics
Creators: name: Gao, Jie
name: Heider, Pascal
name: Chen, Charlton J.
name: Yang, Xiaodong
name: Husko, Chad A.
name: Wong, Chee Wei
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose asymmetric resonant cavities with rational caustics and experimentally demonstrate interior whispering gallery modes in monolithic silicon mesoscopic microcavities. These microcavities demonstrate unique robustness of cavity quality factor (Q) against roughness Rayleigh scattering. Angle-resolved tapered fiber measurements and near-field images observe distinct resonant families and asymmetric emission from interior whispering gallery modes, which can be used for microcavity laser and CQED applications.
description: 11 pages, 4 figures
การเรียนรู้วิทยาศาสตร์ที่บูรณาการร่วมกับเทคโนโลยี
Creators: name: สุทธิดา  จำรัส
Publisher: name: Walailak University
Year: 2019
Subjects: ความรู้เนื้อหาผนวกวิธีสอนและเทคโนโลยี
การเตรียมครู
การเรียนรู้ในศตวรรษที่ 21
ศาสตร์การสอนแนวใหม่

description: วารสารนวัตกรรมการเรียนรู้ มหาวิทยาลัยวลัยลักษณ์, 5, 1, 39-64
Pauli error estimation via Population Recovery
Creators: name: Flammia, Steven T.
name: O'Donnell, Ryan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Motivated by estimation of quantum noise models, we study the problem of learning a Pauli channel, or more generally the Pauli error rates of an arbitrary channel. By employing a novel reduction to the "Population Recovery" problem, we give an extremely simple algorithm that learns the Pauli error rates of an $n$-qubit channel to precision $ε$ in $\ell_\infty$ using just $O(1/ε^2) \log(n/ε)$ applications of the channel. This is optimal up to the logarithmic factors. Our algorithm uses only unentangled state preparation and measurements, and the post-measurement classical runtime is just an $O(1/ε)$ factor larger than the measurement data size. It is also impervious to a limited model of measurement noise where heralded measurement failures occur independently with probability $\le 1/4$. We then consider the case where the noise channel is close to the identity, meaning that the no-error outcome occurs with probability $1-η$. In the regime of small $η$ we extend our algorithm to achieve multiplicative precision $1 \pm ε$ (i.e., additive precision $εη$) using just $O\bigl(\frac{1}{ε^2 η}\bigr) \log(n/ε)$ applications of the channel.
description: 19 pages. v1: Preliminary version in TQC 2021. v2: Journal version with some additional references and background on Pauli channel estimation. Source code available at https://github.com/sflammia/PauliPopRec
AHOLINING TURMUSH SHAROITI VA SOG'LIQ DARAJASI O'RTASIDAGI GIGIYENIK BOG'LIQLIK
Creators: name: Saxibova, Go'zaloy
name: Umurzakova, Muattar
name: Hasanova, Shoiraxon
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada O‘zbekistonning ayrim tumanlarida aholining turmush sharoitlari va sog‘liq holati o‘rtasidagi gigiyenik bog‘liqlik tizimli tahlil qilindi. Tadqiqotda tumanlar kesimida sanitariya infratuzilmasi (ichimlik suvi ta’minoti, chiqindilarni chiqarish tizimi, uy-joy gigiyenasi), demografik sharoitlar va sog‘liq ko‘rsatkichlari o‘rtasidagi statistik bog‘liqlik o‘rganildi. So‘rovnomalar, GIS texnologiyalari, epidemiologik monitoring va regressiya tahlillari asosida aholi salomatligiga ijtimoiy-gigiyenik omillarning ta’siri aniqlangan. Tadqiqot natijalari shuni ko‘rsatdiki, gigiyenik infratuzilma yetishmovchiligi — bolalar va keksa aholi orasida kasalliklarning oshishiga sabab bo‘luvchi yetakchi omillardandir. Maqolada gigiyenik muhitni sog‘liq siyosati bilan uyg‘unlashtirishga doir aniq ilmiy takliflar va amaliy tavsiyalar berilgan.
Architectural Separation of Authorization and Application Logic in Distributed Systems
Creators: name: Beznosov, Konstantin
Publisher: name: Zenodo
Year: 2005
Subjects: access control
software engineering
CORBA
distributed applications
Engineering Security Mechanisms

description: Security is an essential feature and foremost concern to enterprise software systems. Today, application-level access control (and other security) functions are based on complex, fine-grain and/or context-dependent policies, and thus are largely embedded in application systems. This results in multiple-point security control, which makes system integration and security administration tremendously difficult, costly and error-prone.  In this talk, we present our ongoing effort to address the above problems and to achieve the objectives of application access control by integrating the latest results in distributed object technology and software security under an architecture-centered approach for system composition. The main direction of our approach is the development of an open, adaptive and application-independent distributed authorization service based on emerging middleware standards such as CORBA. The service provides authorization decisions to distributed application systems. It establishes the structural basis for system composition, and for ensuring overall performance, availability and reliability of enterprise-wide authorization services. The use of external authorization service has a promise to overcome most of the drawbacks of coupling authorization logic with application logic. The same approach might be generalized and applied for other security properties of distributed application systems. However several important questions have to be addressed before the approach could be considered viable.  We expect the study to show (1) if the architectural separation of functional and nonfunctional system properties is viable for contemporary distributed computing technologies in general, and (2) if authorization logic can be effectively decoupled from application logic in particular. The research has direct implications on the practice of constructing distributed application systems.  The talk was given at: * Department of Computer Science, Middlesex College, The University of Western Ontario, London, ON, Canada, 30 May.  * Department of Computer Science, York University, Toronto, ON, Canada, 29 May.  * IBM Zurich Research Laboratory, Rüeschlikon, Switzerland, 22 May. * Erik Jonsson School of Engineering and Computer Science, The University of Texas at Dallas, TX, USA, 1 May. * Computer and Information Sciences Department, Temple University, Philadelphia, PA, USA, 11 April.
Multiple quantum wells for passive ultra short laser pulse generation
Creators: name: Quintero-Torres, R.
name: Vazquez-Ceron, E.
name: Rodriguez-Rodriguez, E.
name: Stintz, Andreas
name: Diels, Jean-Claude
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Solid state lasers are demanding independent control in the gain media and cavity loss to achieve ultra short laser pulses using passive mode-locking. Recently, laser mode-locking is achieved with a MBE structure with multiple quantum wells, designed to achieve two functions; Bragg mirror and changes in absorption to control the cavity dynamics. The use of an AlGaAs/AlAs Bragg mirror with a 15 nm GaAs saturable absorber used in a Cr:LiSAF tuneable laser proved to be effective to produce femtosecond pulses. The use of saturable absorbers thus far is a trial and error procedure that is changing due to the correlation with more predictive procedures.
description: 4 pages and 3 figures
The JSNS^2 Detector
Creators: name: Ajimura, S.
name: Botran, M.
name: Choi, J. H.
name: Choi, J. W.
name: Cheoun, M. K.
name: Dodo, T.
name: Furuta, H.
name: Goh, J.
name: Haga, K.
name: Harada, M.
name: Hasegawa, S.
name: Hino, Y.
name: Hiraiwa, T.
name: Jang, H. I.
name: Jang, J. S.
name: Jang, M. C.
name: Jeon, H.
name: Jeon, S.
name: Joo, K. K.
name: Jordan, J. R.
name: Jung, D. E.
name: Kang, S. K.
name: Kasugai, Y.
name: Kawasaki, T.
name: Kim, E. J.
name: Kim, J. Y.
name: Kim, S. B.
name: Kim, W.
name: Kinoshita, H.
name: Konno, T.
name: Lee, D. H.
name: Lee, S.
name: Lim, I. T.
name: Marzec, E.
name: Maruyama, T.
name: Masuda, S.
name: Meigo, S.
name: Monjushiro, S.
name: Moon, D. H.
name: Nakano, T.
name: Niiyama, M.
name: Nishikawa, K.
name: Nomachi, M.
name: Pac, M. Y.
name: Park, J. S.
name: Peeters, S. J. M.
name: Ray, H.
name: Roellinghoff, G.
name: Rott, C.
name: Sakai, K.
name: Sakamoto, S.
name: Shima, T.
name: Shin, C. D.
name: Spitz, J.
name: Stancu, I.
name: Sugaya, Y.
name: Suekane, F.
name: Suzuya, K.
name: Taira, M.
name: Ujiie, R.
name: Yamaguchi, Y.
name: Yeh, M.
name: Yeo, I. S.
name: Yoo, C.
name: Yu, I.
name: Zohaib, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The JSNS^2 (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment aims to search for oscillations involving a sterile neutrino in the eV^2 mass-splitting range. The experiment will search for the appearance of electron antineutrinos oscillated from muon antineutrinos. The electron antineutrinos are detected via the inverse beta decay process using a liquid scintillator detector. A 1MW beam of 3 GeV protons incident on a spallation neutron target produces an intense and pulsed neutrino source from pion, muon, and kaon decay at rest. The JSNS^2 detector is located 24 m away from the neutrino source and began operation from June 2020. The detector contains 17 tonnes of gadolinium (Gd) loaded liquid scintillator (LS) in an acrylic vessel, as a neutrino target. It is surrounded by 31 tonnes of unloaded LS in a stainless steel tank. Optical photons produced in LS are viewed by 120 R7081 Hamamatsu 10-inch Photomultiplier Tubes (PMTs). In this paper, we describe the JSNS^2 detector design, construction, and operation.
description: 41 pages, 29 figures
Valorization of incinerator bottom ash for the production of resource-efficient eco-friendly concrete: Performance and toxicological characterization
Creators: name: M., Ramesh B.
name: Vongole, Rahul Murali
name: Nagraj, Yashas
name: Naganna, Sujay Raghavendra
name: M., Sreedhara B.
name: Mailar, Gireesh
name: S., Ramesh P.
name: Yaseen, Zaher Mundher
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences
subject: 74E30, 74E40

description: The disposal of incinerator bottom ash usually produced by the incineration of inorganic constituents of the municipal solid wastes (MSW) in an eco-friendly way is one of the issues of concern, globally. By the way, the present study is related to the utilization of MSW incinerator bottom ash and recycled demolition waste aggregate as partial replacement materials for fine and coarse aggregate, respectively to produce eco-friendly concrete. This study adopted an innovative pretreatment technique for stabilizing the MSW incinerator bottom ash. Five distinct M20 grade concrete mixes were produced with different proportions of fine aggregate, MSW incinerator bottom ash, coarse aggregate, and recycled demolition waste aggregate along with cement and water. The incinerator bottom ash was replaced at 5% and 10% quantities with fine aggregate and the recycled demolition waste aggregate was replaced at 40% and 60% of the weight of the coarse aggregate. The strength and durability properties of the M20 grade concrete were analyzed. It was noticed that the strength and durability properties of the eco-friendly concrete specimens produced by incorporating 5% - incinerator bottom ash and 40% - recycled demolition waste aggregate were superior to that of the control mix concrete. Laboratory tank leaching tests showed that the eco-friendly concrete do not pose any significant environmental hazard. Furthermore, the microstructural analysis through scanning electron microscope (SEM) images, revealed dense aggregate paste matrix interfaces with less micro-pores and insignificant micro-cracks due to the incorporation of incinerator bottom ash as a partial replacement to the fine aggregate.
description: Accepted for publication in Architecture, Structures and Construction Journal
Vesicular-arbuscular mycorrhizae and apples (Malus domestica Borkh.) in the nursery and in apple replant desease
Creators: name: Gamiet, Sharmin
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study was to determine if different clonal rootstock from apple (Malus domestica Borkh.) formed different vesicular arbuscular mycorrhizal (VAM) associations. Different fertilizers and VAM fungi were tested to determine their effects on apple seedling growth in apple replant diseased (ARD) soils. VAM associations in apple stoolbed nursery were low. Over 80% of all samples had less than 10% mycorrhizal colonization. This reduction in VAM colonization amongst various rootstock clones is a result of detrimental management practices in the stoolbed nursery. Apples grown in a budded nursery had high mycorrhizal colonization, the lowest colonization rate was 30%. Different rootstocks from the budded nursery do not show any significant differences in VAM colonization, whereas clonal rootstocks from the stoolbed nursery do. From the stoolbed nursery, Mailing (M) 2 consistantly showed higher VAM colonization rates, compared to M 4, M7, M9, M 26, Mailing Merton (MM) 106, MM 111, Alnarp 2 and Ottawa 3. Apple replant disease (ARD) is identified as the reason for poor growth of apple seddlings in 5 soils from the Okanagan Valley of British Columbia. Sterilization by autoclaving, pasteurization and formalin increased test seedling height. Air-drying test soil does not affect ARD pot bioassays. However, air-drying the soil and pasteurizing or adding formalin increased plant height significantly more than these treatments in nonair-dried soils. The fertilizer monoammonium phosphate (11-55-0) increased plant height more than ammonium nitrate (34-0-0) while triple superphosphate (0-45-0) did not increase plant height. Root growth was increased by 0-45-0 only. VAM fungi were drastically reduced or eliminated by sterilization and 11-55-0, but not by the other fertilizers. VAM fungi in 2 ARD soils do not overcome ARD. Test seedlings grown in sterilized ARD soils inoculated with 4 species of VAM fungi do not show as great an increase in shoot height compared to the addition of 11-55-0 fertilizer. Root growth shows the inverse response. Glomus intraradices Schenck and Smith, was the best colonizer but inoculation with G. versiforme (Karsten) Berch resulted in the greatest shoot and root growth. Glomus clarum Nicholson and Schenck, and G. monosporum Gerdemann and Trappe, did not result in increases in plant growth in ARD soils. In sterilized ARD soils, VAM fungi do not increase shoot growth as expected, but do increase root growth, suggesting the initial growth of inoculated apple seedlings is root mass. Seedlings given 11-55-0 fertilizers show the reverse pattern of growth. In nonsterilized ARD soils, the growth of seedlings appears to be inversely proportional to VAM colonization.
title: Auswahl einer geeigneten Säuglingsnahrung für das reduzierte Warenangebot im Falle einer Versorgungskrise; Empfehlungen im Rahmen des BMBF-Forschungsprojektes NeuENV
title: Chosing an appropriate formula food for being used in public food provision and security
Creators: name: Kurek, Annika
Publisher: name: FH Münster
Year: 2014
Subjects: subject: 640 Hauswirtschaft und Familie

description: Das Konzept der Ernährungsnotfallvorsorge in Deutschland soll die Sicherstellung der Lebensmittelversorgung auch bei Eintritt einer Versorgungskrise, ausgelöst durch Störungen oder Ausfall von Sektoren Kritischer Infrastrukturen wie Transport, Kommunikation oder Energie, gewährleisten. Die natürliche Ernährung des Säuglings durch das Stillen ist besonders in einer Versorgungskrise, aber auch in Nicht-Krisenzeiten eine in jeder Hinsicht empfehlenswerte Methode. Bei so genannten Stillhindernissen von Seiten der Mutter oder des Kindes kann es aber dazu kommen, dass die Ernährung an der Brust, nicht oder nur eingeschränkt möglich ist. Vor diesem Hintergrund muss auf eine industriell hergestellte Säuglingsnahrung (trinkfertig oder zum Zubereiten) ausgewichen werden. Aus diesem Grund bildet die Überprüfung der Eignung trinkfertiger PRE-Säuglingsanfangs-Milchsorten verschiedener Hersteller für das reduzierte Warenangebot in einer Versorgungskrise den Forschungsgegenstand dieser Arbeit. Die Betrachtung der Produkte erfolgte anhand der sechs aufgestellten Kriterien: Mindesthaltbarkeit, Lagerbedingungen/Lagerfähigkeit, Zeitaufwand im Krisenfall, Ressourceneinsatz, Verpackung und Preis.
description: An appropriate formula food for being used in public food provision and security programs was chosen, taking into account aspects of composition, storage and preparation in situations of limited resources.
Architecture-Centered Composition of Adaptive and Dependable Enterprise Security Services
Creators: name: Deng, Yi
name: Beznosov, Konstantin
Publisher: name: Zenodo
Year: 2005
Subjects: RBAC
RelBAC
RAD
CORBA Security
Engineering Security Mechanisms

description: Security is an essential feature and foremost concern to enterprise software systems. Today, application-level security functions, e.g. access control based on complex, fine-grain and/or context dependent security policies, are largely embedded in application software. This results in multiple point security control, which makes system integration and security administration tremendously difficult, costly and error-prone. No effective and scalable means exist to systematically classify, precisely predict and measure end-to-end properties (e.g. completeness and assurance of security policies) of enterprise security services.  In this talk, we present our ongoing effort to address the above problems by integrating the latest results in distributed object technology, formal methods and software security under an architecture-centered approach for system composition. Our objective is threefold: supporting uniform management and dynamic composition of security policies, supporting dynamic composition of enterprise security services and applications, and in the meantime, assuring system-wide properties and quality attributes during design and evolution of the systems.  Our approach has the following integrated elements:  1. Developing an open, adaptive and application-independent distributed architecture for enterprise security services based on emerging middleware standards, e.g. CORBA. Such architecture provides the structural basis for system composition, and for ensuring performance, availability and reliability of the security services.  2. Developing constraint patterns based on the architecture, which systematically classify and define required end-to-end properties of the security service, and its composability against the properties. These constraint patterns provide behavioral basis for the composition.  3. Developing adaptive and scalable modeling and analysis methods to describe the structural and behavioral composition of the security services and to verify its conformance to the architectural constraints during system design and evolution.  Our preliminary results on this research are presented, and open issues discussed.
Attribute Function: an Enabler for Effective Inexpensive Application-specific Security Decisions
Creators: name: Beznosov, Konstantin
Publisher: name: Zenodo
Year: 2005
Subjects: attribute function
object security attributes
access control
Engineering Security Mechanisms

description: Security is an essential feature and foremost concern to Internet and enterprise distributed software applications. However, the adoption of secure distributed applications by commercial and government organizations is considerably hampered by the prohibitively high cost of ownership and the inability to support real-world security requirements adequately. New methods for designing security mechanisms for large-scale distributed applications to enable both lowering the ownership cost of the applications and making them more adequate for real-world security requirements are necessary.  In this talk, I will discuss plans for near term research on testing the hypothesis that the attribute function (AF), which I have recently proposed, allows effective use of application-specific factors in security policy decisions without expensive coupling between the decision function and the application. An addition to the traditional decision and enforcement functions present in most security mechanisms (e.g., access control, data protection, and security audit), AF is introduced to provide application-specific information to these functions.
Entanglement Wedge Cross Section in Holographic Excited States
Creators: name: Sahraei, Mohammad
name: Vasli, Mohammad Javad
name: Mozaffar, M. Reza Mohammadi
name: Velni, Komeil Babaei
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We evaluate the entanglement wedge cross section (EWCS) in asymptotically AdS geometries which are dual to boundary excited states. We carry out a perturbative analysis for calculating EWCS between the vacuum and other states for a symmetric configuration consisting of two disjoint strips and obtain analytical results in the specific regimes of the parameter space. In particular, when the states described by purely gravitational excitations in the bulk we find that the leading correction to EWCS is negative and hence the correlation between the boundary subregions decreases. We also study other types of excitations upon adding the extra matter fields including current and scalar condensate. Our study reveals some generic properties of boundary information measures dual to EWCS, e.g., entanglement of purification, logarithmic negativity and reflected entropy. Finally, we discuss how these results are consistent with the behavior of other correlation measures including the holographic mutual information.
description: 35 pages, 8 figures, v2: a minor correction, references added, v3: title changed, updated to match the published version
Electroweak corrections to W-boson hadroproduction at finite transverse momentum
Creators: name: Hollik, W.
name: Kasprzik, T.
name: Kniehl, B. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We calculate the full one-loop electroweak radiative corrections to the cross section of single W-boson inclusive hadroproduction at finite transverse momentum (p_T). This includes the O(alpha) corrections to W+j production, the O(alpha_s) corrections to W+gamma production, and the tree-level contribution from W+j photoproduction with one direct or resolved photon in the initial state. We present the integrated cross section as a function of a minimum-p_T cut as well as the p_T distribution for the experimental conditions at the Fermilab Tevatron and the CERN LHC and estimate the theoretical uncertainties.
description: 27 pages, 13 figures; typos corrected, references added, matches version to appear in Nucl. Phys. B
Characterizing mechanical motion: A comparison of methods that disrupt biological motion and the factors influencing perceived mechanicalness
Creators: name: Özen, Gizem
name: Urgen, Burcu A.
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Life Sciences
subject: Cognitive Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: biological motion
subject: human robot interaction
subject: mechanical motion
subject: visual cognition

description: Exploring the methods that disrupt biological motion and examining the factors that influence the perceived mechanicalness of movement
Generalization of escape rate from a metastable state driven by external cross-correlated noise processes
Creators: name: Chaudhuri, Jyotipratim Ray
name: Chattopadhyay, Sudip
name: Banik, Suman Kumar
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We propose generalization of escape rate from a metastable state for externally driven correlated noise processes in one dimension. In addition to the internal non-Markovian thermal fluctuations, the external correlated noise processes we consider are Gaussian, stationary in nature and are of Ornstein-Uhlenbeck type. Based on a Fokker-Planck description of the effective noise processes with finite memory we derive the generalized escape rate from a metastable state in the moderate to large damping limit and investigate the effect of degree of correlation on the resulting rate. Comparison of the theoretical expression with numerical simulation gives a satisfactory agreement and shows that by increasing the degree of external noise correlation one can enhance the escape rate through the dressed effective noise strength.
description: 9 pages, 1 figure
Black Holes and Large Order Quantum Geometry
Creators: name: Huang, Min-xin
name: Klemm, Albrecht
name: Marino, Marcos
name: Tavanfar, Alireza
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study five-dimensional black holes obtained by compactifying M theory on Calabi-Yau threefolds. Recent progress in solving topological string theory on compact, one-parameter models allows us to test numerically various conjectures about these black holes. We give convincing evidence that a microscopic description based on Gopakumar-Vafa invariants accounts correctly for their macroscopic entropy, and we check that highly nontrivial cancellations -which seem necessary to resolve the so-called entropy enigma in the OSV conjecture- do in fact occur. We also study analytically small 5d black holes obtained by wrapping M2 branes in the fiber of K3 fibrations. By using heterotic/type II duality we obtain exact formulae for the microscopic degeneracies in various geometries, and we compute their asymptotic expansion for large charges.
description: 42 pages, 20 eps figures, small corrections