cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Green's functions and DOS for some 2D lattices
Creators: name: Kogan, Eugene
name: Gumbs, Godfrey
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this note we present the Green's functions and density of states for the most frequently encountered 2D lattices: square, triangular, honeycomb, kagome, and Lieb lattice. Though the results are well know, we hope that their derivation performed in a uniform way is of some pedagogical value.
description: Latex, 6 pages, 5 eps files. As accepted for publication in Graphene
Protocole theatres-societe 2021
Creators: name: Ponzetto Valentina
Publisher: name: Zenodo
Year: 2021
Subjects: Database, 18th Century French Literature; 19th Century French Literature; Performing Arts; Drama; Theatre; Literary History; Cultural History; Sociability; Amateurs

description: Mode d'emploi pour entrer ou chercher des données dans la base de données "Théâtres de société" Persistent identifier: http://ark.dasch.swiss/ark:/72163/1/0103
Multipath routing algorithm for wireless sensor networks
Creators: name: Lu, Ye Ming
Publisher: name: University of British Columbia
Year: 2010

description: Unlike conventional wireless cellular networks, the energy efficiency is a critical design issue for wireless sensor networks (WSNs). Many works have been done to design routing protocols that allow the sensors to distribute data efficiently with limited energy supply. In this thesis, we propose a novel routing algorithm to disseminate information via multiple paths in static and energy-constrained WSNs. The algorithm consists of a distributed multipath search protocol and a load balancing algorithm. The multipath search protocol discovers multiple node-disjoint paths that connect a pair of sink and source nodes. The load balancing algorithm helps the sink node to allocate traffic over multiple paths found based on their cost, which depends on the energy levels and the hop distances of nodes along each path. We consider it as a key to improve the energy efficiency in our protocol. The results based on the use of ns-2 simulator show that our algorithm can prolong the network lifetime by 9% to 18% and reduce the node energy consumption by a maximum of 34% over comparable schemes, including the energy-aware routing, the directed diffusion, and the directed transmission. The results also indicate that the multipath routing has low control message overhead and incurs a small data packet transfer delay.
Pressure inequalities for nuclear and neutron matter
Creators: name: Lee, Dean
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We prove several inequalities using lowest-order effective field theory for nucleons which give an upper bound on the pressure of asymmetric nuclear matter and neutron matter. We prove two types of inequalities, one based on convexity and another derived from shifting an auxiliary field.
description: 16 pages, published journal version - includes inequalities for spin polarized systems
Inflation, Large Branes, and the Shape of Space
Creators: name: McInnes, Brett
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Linde has recently argued that compact flat or negatively curved spatial sections should, in many circumstances, be considered typical in Inflationary cosmologies. We suggest that the "large brane instability" of Seiberg and Witten eliminates the negative candidates in the context of string theory. That leaves the flat, compact, three-dimensional manifolds -- Conway's *platycosms*. We show that deep theorems of Schoen, Yau, Gromov and Lawson imply that, even in this case, Seiberg-Witten instability can be avoided only with difficulty. Using a specific cosmological model of the Maldacena-Maoz type, we explain how to do this, and we also show how the list of platycosmic candidates can be reduced to three. This leads to an extension of the basic idea: the conformal compactification of the entire Euclidean spacetime also has the topology of a flat, compact, four-dimensional space.
description: 29 pages, clarifications, typos fixed, references added
Algorithm Selection Framework for Cyber Attack Detection
Creators: name: Chalé, Marc
name: Bastian, Nathaniel D.
name: Weir, Jeffery
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The number of cyber threats against both wired and wireless computer systems and other components of the Internet of Things continues to increase annually. In this work, an algorithm selection framework is employed on the NSL-KDD data set and a novel paradigm of machine learning taxonomy is presented. The framework uses a combination of user input and meta-features to select the best algorithm to detect cyber attacks on a network. Performance is compared between a rule-of-thumb strategy and a meta-learning strategy. The framework removes the conjecture of the common trial-and-error algorithm selection method. The framework recommends five algorithms from the taxonomy. Both strategies recommend a high-performing algorithm, though not the best performing. The work demonstrates the close connectedness between algorithm selection and the taxonomy for which it is premised.
description: 6 pages, 7 figures, 1 table, accepted to WiseML '20
Additional file 1 of PLAU promotes growth and attenuates cisplatin chemosensitivity in ARID1A-depleted non-small cell lung cancer through interaction with TM4SF1
Creators: name: Zheng, Yuanliang
name: Zhang, Lixiang
name: Zhang, Kangliang
name: Wu, Shenghao
name: Wang, Chichao
name: Huang, Risheng
name: Liao, Hongli
Publisher: name: figshare
Year: 2024
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Cancer
subject: Hematology
subject: Plant Biology

description: Supplementary Material 1
Glomus ibericum, Septoglomus mediterraneum and Funneliformis pilosus, three new species of arbuscular mycorrhizal fungi.
Creators: name: Guillén, Alberto
name: Serrano-Tamay, Fernando J.
name: Peris, Juan Bautista
name: Arrillaga, Isabel
Publisher: name: figshare
Year: 2020
Subjects: subject: 60505 Mycology
subject: FOS: Biological sciences

description: Alignments and tree files regarding to " Glomus ibericum, Septoglomus mediterraneum and Funneliformis pilosus, three new species of arbuscular mycorrhizal fungi".
Quantifying myelin in brain tissue using color spatial light interference microscopy (cSLIM)
Creators: name: Fanous, Michael
name: Caputo, Megan P.
name: Lee, Young Jae
name: Rund, Laurie A.
name: Best-Popescu, Catherine
name: Kandel, Mikhail E.
name: Johnson, Rodney W.
name: Das, Tapas
name: Kuchan, Matthew J.
name: Popescu, Gabriel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: Deficient myelination of the brain is associated with neurodevelopmental delays, particularly in high-risk infants, such as those born small in relation to their gestational age (SGA). New methods are needed to further study this condition. Here, we employ Color Spatial Light Interference Microscopy (cSLIM), which uses a brightfield objective and RGB camera to generate pathlength-maps with nanoscale sensitivity in conjunction with a regular brightfield image. Using tissue sections stained with Luxol Fast Blue, the myelin structures were segmented from a brightfield image. Using a binary mask, those portions were quantitatively analyzed in the corresponding phase maps. We first used the CLARITY method to remove tissue lipids and validate the sensitivity of cSLIM to lipid content. We then applied cSLIM to brain histology slices. These specimens are from a previous MRI study, which demonstrated that appropriate for gestational age (AGA) piglets have increased internal capsule myelination (ICM) compared to small for gestational age (SGA) piglets and that a hydrolyzed fat diet improved ICM in both. The identity of samples was blinded until after statistical analyses.
Power implications of implementing logic using field-programmable gate array embedded memory blocks
Creators: name: Chin, Scott Yin Lunn
Publisher: name: University of British Columbia
Year: 2010

description: Modern field-programmable gate arrays (FPGAs) are used to implement entire systems, and these systems often require storage. FPGA vendors have responded by incorporating two types of embedded memory resources into their architectures: dedicated and nondedicated. The dedicated embedded memory blocks lead to much denser memory implementations and are therefore very efficient for implementing large systems that require storage. However, for logic intensive circuits that do not require storage, the chip area devoted to the embedded FPGA memory is wasted. This need not be the case if the FPGA memories are configured as ROMs to implement logic. Previous work has presented algorithms that automatically map logic circuits to FPGAs with both large ROMs and small lookup tables. These previous studies, however, did not consider the impact on power. Power has become a first-class concern among FPGA vendors. In this thesis, we develop a power model for FPGAs that contain embedded memories, and apply it to investigate the impact of various embedded memory architectural parameters on power dissipation when using memories to implement logic. From this study, we find that mapping logic to memories incurs a significant power penalty due to the power consumed in the embedded memories. We then investigate two possible ways to reduce this power penalty at the CAD level, one of which we found to be effective.
Lagrange-Fedosov Nonholonomic Manifolds
Creators: name: Etayo, Fernando
name: Santamar\{'ı}a, Rafael
name: Vacaru, Sergiu I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Symplectic Geometry (math.SG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 51P05, 53D15, 53B40, 53C07, 53C55, 70G45, 83C15

description: We outline an unified approach to geometrization of Lagrange mechanics, Finsler geometry and geometric methods of constructing exact solutions with generic off-diagonal terms and nonholonomic variables in gravity theories. Such geometries with induced almost symplectic structure are modelled on nonholonomic manifolds provided with nonintegrable distributions defining nonlinear connections. We introduce the concept of Lagrange-Fedosov spaces and Fedosov nonholonomic manifolds provided with almost symplectic connection adapted to the nonlinear connection structure. We investigate the main properties of generalized Fedosov nonholonomic manifolds and analyze exact solutions defining almost symplectic Einstein spaces.
description: latex2e, v3, published variant, with new S.V. affiliation
Quantum and semi-classical aspects of confined systems with variable mass
Creators: name: Gazeau, Jean-Pierre
name: Hussin, Véronique
name: Moran, James
name: Zelaya, Kevin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We explore the quantization of classical models with position-dependent mass (PDM) terms constrained to a bounded interval in the canonical position. This is achieved through the Weyl-Heisenberg covariant integral quantization by properly choosing a regularizing function $Π(q,p)$ on the phase space that smooths the discontinuities present in the classical model. We thus obtain well-defined operators without requiring the construction of self-adjoint extensions. Simultaneously, the quantization mechanism leads naturally to a semi-classical system, that is, a classical-like model with a well-defined Hamiltonian structure in which the effects of the Planck's constant are not negligible. Interestingly, for a non-separable function $Π(q,p)$, a purely quantum minimal-coupling term arises in the form of a vector potential for both the quantum and semi-classical models.
Determination of the diffusion constant using phase-sensitive measurements
Creators: name: Vellekoop, I. M.
name: Lodahl, P.
name: Lagendijk, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We apply a pulsed-light interferometer to measure both the intensity and the phase of light that is transmitted through a strongly scattering disordered material. From a single set of measurements we obtain the time-resolved intensity, frequency correlations and statistical phase information simultaneously. We compare several independent techniques of measuring the diffusion constant for diffuse propagation of light. By comparing these independent measurements, we obtain experimental proof of the consistency of the diffusion model and corroborate phase statistics theory.
description: 9 pages, 8 figures, submitted to Phys. Rev. E
The role of interactions
Creators: name: Schmitt, H. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Interactions between galaxies are suggested to be a mechanism responsible for feeding Active Galactic Nuclei (AGN). Theoretical models show that interactions are an efficient way to drive gas from the galaxy to the nucleus, however, the observational evidence on this subject is controversial. Here we review results in this field, discuss possible limitations of previous studies and the importance of dealing with selection effects. We also show that there is no significant difference in the percentage of low luminosity AGN and normal galaxies with companions, and discuss possible interpretations of this result.
description: 6 pages, 1 figure. Invited review to appear in "The Interplay among Black Holes, Stars and ISM in Galactic Nuclei," Proc. IAU 222 (Gramado, Brazil), eds. Th. Storchi Bergmann, L.C. Ho, H.R. Schmitt
Charged Kaon K -> 3 pi CP Violating Asymmetries
Creators: name: Gamiz, Elvira
name: Prades, Joaquim
name: Scimemi, Ignazio
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: First full next-to-leading order analytical results in Chiral Perturbation Theory for the charged Kaon K -> 3 pi slope g and decay rates CP-violating asymmetries are presented. We discuss the constraints that a measurement of these asymmetries would impose on the Standard Model calculations of epsilon_K' and the kind of information it can provide on Im G_8, Im (e^2 G_E) and higher order weak couplings.
description: Invited Talk given by J.P. at 32nd ICHEP, 16-22 August 2004, Beijing, China. 7 pages, 3 figures. Corrected first name of one author
Enhanced Approach of Non-Smart to Smart Devices using IOT Techniques
Creators: name: T. Tirupal
Publisher: name: figshare
Year: 2020
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: With the progression of innovation and more reliance of individuals on cell phones and expanding requests of a simple and brisk method for tackling everyday life task, it has acquired critical to have an innovation which can consultant over the domiciliary, industrial applications using internet of things (IoT). This paper is based on the implementation of new cost-effective methodology based on IoT to remotely controlling of appliances i.e. ON and OFF. IoT conceptualizes the idea of remotely connecting and monitoring real-world objects (things) through the internet. The IoT can be designed at different scales for different uses. It can start from our homes with simple lightning or appliance control. Today the increase in demand for service over the internet necessitated the data collection and exchange an efficiently. In this sense Internet of Things (IoT) has promised the ability to provide the efficient date storage and exchange by connecting the physical devices via internet. The IoT has created the revolution all over the world and fascinatingly it has become integral part of life. The IoT involves extending internet connectivity beyond standard devices such as desktops, laptops, smartphones, and tablets, to any range of traditionally dumb or non-internet enabled physical devices and everyday objects. Embedded with technology, these devices can communicate and interact over the internet, and they can be remotely monitored and controlled. The uniqueness of IoT design elements in their ability to sleep when not in use.
Electric charge quantization in 331 Models with exotic charges
Creators: name: Abad, David Romero
name: Portales, Jose Reyes
name: Barreto, Elmer Ramirez
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The extensions of the Standard Model based on the $SU(3)_{C} \otimes SU(3)_{L} \otimes U(1)_{X}$ gauge group are known as 331 Models. Different properties such as the fermion assignment and the electric charges of the exotic spectrum, that defines a particular 331 model, are fixed by a $β$ parameter. In this article we study the electric charge quantization in two versions of the 331 models, set by the conditions $β=1/\left( 3\sqrt{3}\right)$ and $β=0$. In these frameworks, arise exotic particles, for instance, new leptons and gauge bosons with a fractional electric charge. Additionally, depending on the version, quarks with non-standard fractional electric charges or even neutral appear. Considering the definition of electric charge operator as a linear combination of the group generators that annihilates the vacuum, classical constraints from the invariance of the lagrangian, and gauge and mixed gauge-gravitational anomalies cancellation, the quantization of the electric charge can be verified in both versions.
description: 12 pages
Methodology for measuring gluon jet fraction and characteristics of quark and gluon jets for hadron-hadron collisions
Creators: name: Shulha, S.
name: Budkouski, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The discriminators of quark-gluon jets developed for $pp$ collisions at the LHC can be used to measure the gluon jet fraction in a jet sample. It allows to measure various characteristics of the quark and gluon jets. The methodology of such measurements for modern hadron colliders is discussed.
description: Submitted to PEPAN
The XENON Dark Matter Search Experiment
Creators: name: Aprile, E.
name: Giboni, K. L.
name: Majewski, P.
name: Ni, K.
name: Yamashita, M.
name: Gaitskell, R.
name: Sorensen, P.
name: DeViveiros, L.
name: Baudis, L.
name: Bernstein, A.
name: Hagmann, C.
name: Winant, C.
name: Shutt, T.
name: Kwong, J.
name: Oberlack, U.
name: McKinsey, D.
name: Hasty, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The XENON experiment aims at the direct detection of dark matter in the form of WIMPs (Weakly Interacting Massive Particles) via their elastic scattering off Xe nuclei. A fiducial mass of 1000 kg, distributed in ten independent liquid xenon time projection chambers(LXeTPCs) will be used to probe thelowest interaction cross section predicted by SUSY models. The TPCs are operated in dual (liquid/gas) phase, to allow a measurement of nuclear recoils down to 16keV energy, via simultaneous detection of the ionization, through secondary scintillation in the gas, and primary scintillation in the liquid. Thedistinct ratio of primary to secondary scintillation for nuclear recoils from WIMPs (or neutrons), and for electron recoils from background, iskey to the event-by-event discrimination capability of XENON. A dual phase xenon prototype has been realized and is currently being tested, along with otherprototypes dedicated to other measurements relevant to the XENON program. As part of the R&D phase, we will realize and move underground a first XENON module (XENON10) with at least 10 kg fiducial mass to measure the background rejection capability and to optimize the conditions for continuous and stable detector operation underground. We present some of the results from the ongoing R&D and summarize the expected performance of the 10 kg experiment, from MonteCarlo simulations. The main design features of the 100 kg detector unit(XENON100), with which we envisage to make up the 1 tonne sensitive mass ofXENON1T will also be presented.
description: 9 pages, 8 figures, appear in the Proceeding of 6th UCLA Symposium on Sources and Detection of Dark Matter and Dark Energy in the Universe
Use and Adaptation of Open Source Software for Capacity Building to Strengthen Health Research in Low- and Middle-Income Countries
Creators: name: Hochwarter, Stefan
name: Atkins, Salla
name: Diwan, Vinod K.
name: Zary, Nabil
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Health research capacity strengthening is of importance to reach health goals. The ARCADE projects' aim was to strengthen health research across Africa and Asia using innovative educational technologies. In the four years of the EU funded projects, challenges also of technical nature were identified. This article reports on a study conducted within the ARCADE projects. The study focused on addressing challenges of video conferencing in resource constrained settings and was conducted using action research. As a result, a plugin for the open source video conferencing system minisip was implemented and evaluated. The study showed that both the audio and video streams could be improved by the introduced plugin, which addressed one technical challenge.
Electrodynamics of Conductive Oxides: Intensity-dependent anisotropy, reconstruction of the effective dielectric constant, and harmonic generation
Creators: name: Scalora, Michael
name: Trull, Jose
name: de Ceglia, Domenico
name: Vincenti, Maria Antonietta
name: Akozbek, Neset
name: Coppens, Zachary
name: Rodríguez-Suné, Laura
name: Cojocaru, Crina
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study electromagnetic pulse propagation in an indium tin oxide nanolayer in the linear and nonlinear regimes. We use the constitutive relations to reconstruct the effective dielectric constant of the medium, and show that nonlocal effects induce additional absorption resonances and anisotropic dielectric response: longitudinal and transverse effective dielectric functions are modulated differently along the propagation direction, and display different epsilon-near-zero crossing points with a discrepancy that increases with increasing intensity. We predict that hot carriers induce a dynamic redshift of the plasma frequency and a corresponding translation of the effective nonlinear dispersion curves that can be used to predict and quantify nonlinear refractive index changes as a function of incident laser peak power density. Our results suggest that large, nonlinear refractive index changes can occur without the need for epsilon-near-zero modes to couple with plasmonic resonators. At sufficiently large laser pulse intensities, we predict the onset of optical bistability, while the presence of additional pump absorption resonances that arise from longitudinal oscillations of the free electron gas give way to corresponding resonances in the second and third harmonic spectra. A realistic propagation model is key to unraveling the basic physical mechanisms that play a fundamental role in the dynamics.
Nested Multi-Soliton Solutions with Arbitrary Hopf Index
Creators: name: Wereszczynski, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Generalized Aratyn-Ferreira-Zimerman O(3) nonlinear sigma model with a particular symmetry breaking term, so-called dielectric function, is discussed. Static multi-soliton configurations with finite energy and nontrivial Hopf index are found. We show that such configurations consist of nested toroidal solitons. Moreover, nontrivial sphaleron-like solutions i.e. configurations with zero total topological charge are also presented.
description: 11 pages, 4 figures
Email flow awareness and deferral strategies
Creators: name: Siu, Nelson
Publisher: name: University of British Columbia
Year: 2010

description: The investigative methods traditionally employed by email researchers do not adequately capture the intricacies of email use over an entire day. This thesis improves upon these methods by using a novel combination of daylong in-situ shadowing and passive interface monitoring to provide new insights into how new messages are handled. The findings revealed previously undocumented actions for dealing with email on an ongoing basis, and showed that deferred message handling is a critical usage strategy that has been understudied. Interface logs were used to explore the defer action further and identified two types of email deferral: intra-session and inter-session deferral. This investigation highlights the frequent use of email as a real-time task and attention management tool, and demonstrates why this usage should be supported within email clients. This thesis finally makes the recommendation that future interface improvements should provide more flexible and lightweight mechanisms for integrating email into the user's workflow.
Additional file 1 of An exploration of the Indonesian lay mental health workers’ (cadres) experiences in performing their roles in community mental health services: a qualitative study
Creators: name: Susanti, Herni
name: Brooks, Helen
name: Yulia, Ice
name: Windarwati, Heni D.
name: Yuliastuti, Estin
name: Hasniah, Hasniah
name: Keliat, Budi A.
Publisher: name: figshare
Year: 2024
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Appendix 1 - Focus group guideline, Appendix 2. Participants quoted
Large quantum nonlinear dynamic susceptibility of single-molecule magnets
Creators: name: Luis, F.
name: Gonzalez, V.
name: Millan, A.
name: Garcia-Palacios, J. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The nonlinear dynamical response of Mn$_{12}$ single-molecule magnets is experimentally found to be very large, quite insensitive to the spin-lattice coupling constant, and displaying peaks reversed with respect to classical superparamagnets. It is shown that these features are caused by the strong field dependence of the relaxation rate due to the detuning of energy levels between which tunneling takes place. The nonlinear susceptibility technique, previously overlooked, is thus proposed as a privileged probe to ascertain the occurrence of quantum effects in mesoscopic magnetic systems.
description: 4 pages, 4 figures
A Feature-aware SPH for Isotropic Unstructured Mesh Generation
Creators: name: Ji, Zhe
name: Fu, Lin
name: Hu, Xiangyu
name: Adams, Nikolaus
Publisher: name: arXiv
Year: 2020
Subjects: subject: Graphics (cs.GR)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In this paper, we present a feature-aware SPH method for the concurrent and automated isotropic unstructured mesh generation. Two additional objectives are achieved with the proposed method compared to the original SPH-based mesh generator (Fu et al., 2019). First, a feature boundary correction term is introduced to address the issue of incomplete kernel support at the boundary vicinity. The mesh generation of feature curves, feature surfaces and volumes can be handled concurrently without explicitly following a dimensional sequence. Second, a two-phase model is proposed to characterize the mesh-generation procedure by a feature-size-adaptation phase and a mesh-quality-optimization phase. By proposing a new error measurement criterion and an adaptive control system with two sets of simulation parameters, the objectives of faster feature-size adaptation and local mesh-quality improvement are merged into a consistent framework. The proposed method is validated with a set of 2D and 3D numerical tests with different complexities and scales. The results demonstrate that high-quality meshes are generated with a significant speedup of convergence.
description: 54 pages and 22 figures
How to practise academic integrity
Creators: name: Wright, Sophie
Publisher: name: Monash University
Year: 2020
Subjects: Uncategorized

description: Have you ever had a doubt as to when or how to reference an author? Do you find paraphrasing a tricky area of your assessment writing? Do you ever look at your research notes and wonder which part is your contribution and which ideas come directly from someone else?If you answered yes to any of these questions you are not alone! Many university students can be unsure about these things, which are all covered by the term ‘academic integrity’.
Electron acceleration and radio emission following the early interaction of two coronal mass ejections
Creators: name: Morosan, D. E.
name: Palmerio, E.
name: Räsänen, J. E.
name: Kilpua, E. K. J.
name: Magdalenić, J.
name: Lynch, B. J.
name: Kumari, A.
name: Pomoell, J.
name: Palmroth, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Context. Coronal mass ejections (CMEs) are large eruptions of magnetised plasma from the Sun that are often accompanied by solar radio bursts produced by accelerated electrons. Aims. A powerful source for accelerating electron beams are CME-driven shocks, however, there are other mechanisms capable of accelerating electrons during a CME eruption. So far, studies have relied on the traditional classification of solar radio bursts into five groups (Type I-V) based mainly on their shapes and characteristics in dynamic spectra. Here, we aim to determine the origin of moving radio bursts associated with a CME that do not fit into the present classification of the solar radio emission. Methods. By using radio imaging from the Nançay Radioheliograph, combined with observations from the Solar Dynamics Observatory, Solar and Heliospheric Observatory, and Solar Terrestrial Relations Observatory spacecraft, we investigate the moving radio bursts accompanying two subsequent CMEs on 22 May 2013. We use three-dimensional reconstructions of the two associated CME eruptions to show the possible origin of the observed radio emission. Results. We identified three moving radio bursts at unusually high altitudes in the corona that are located at the northern CME flank and move outwards synchronously with the CME. The radio bursts correspond to fine-structured emission in dynamic spectra with durations of ~1 s, and they may show forward or reverse frequency drifts. Since the CME expands closely following an earlier CME, a low coronal CME-CME interaction is likely responsible for the observed radio emission.
description: 14 pages, 13 figures
Motives for Mergers in Food Manufacturing
Creators: name: Cotterill, Ronald W.
name: Pinkerton, Don C.
name: Cotterill, Ronald W.
name: Pinkerton, Don C.
Publisher: name: Unknown
Year: 1993
Subjects: Agribusiness
Industrial Organization

description: This paper reviews theories that identify motives for mergers, reviews recent empirical research, specifies a model that incorporates alternative motives, and tests the model with data from food manufacturing mergers between 1979 and 1986. Results suggest that capital markets are not efficient, and that mergers are not to redress agency problems. Acquirers paid higher premiums for target firms that have recently had low profitability, and paid higher premiums when the stock market was low. The model explains at best 30 percent of the variation in premiums, suggesting that major explanations for mergers remain as yet unidentified.
Additional file 1 of The impact of damaging epilepsy and cardiac genetic variant burden in sudden death in the young
Creators: name: Puckelwartz, Megan J.
name: Pesce, Lorenzo L.
name: Hernandez, Edgar J.
name: Webster, Gregory
name: Dellefave-Castillo, Lisa M.
name: Russell, Mark W.
name: Geisler, Sarah S.
name: Kearns, Samuel D.
name: Karthik, Felix
name: Etheridge, Susan P.
name: Monroe, Tanner O.
name: Pottinger, Tess D.
name: Kannankeril, Prince J.
name: Shoemaker, M. Benjamin
name: Fountain, Darlene
name: Roden, Dan M.
name: Faulkner, Meghan
name: MacLeod, Heather M.
name: Burns, Kristin M.
name: Yandell, Mark
name: Tristani-Firouzi, Martin
name: George, Alfred L.
name: McNally, Elizabeth M.
Publisher: name: figshare
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional File 1: Table S1. Detailed Cause of Death. Table S2. Epilepsy Gene panels. Table S3. Cardiomyopathy and Arrhythmia Gene panels. Table S4. Pathogenic and Likely pathogenic, Mendelian variants as ranked by GEM. Table S5. Enrichment of variants in epilepsy or cardiac genes in the SDY cohort compared to an ancestry and sex matched 1000 genomes cohort. Table S6. Linear regression of age at death against number of rare epilepsy variants. Figure S1. Summary of exclusion and inclusion criteria for the SDY Case Registry. Figure S2. The SDY cohort had enriched GEM-damaging (A) epilepsy and (B) CMAR2 gene burden compared to a sex- and ancestry-matched control cohort.
Economic Criteria for Settling Federalism Disputes with an Application to Food Safety Regulation
Creators: name: Caswell, Julie A.
name: Kleinschmit, Jaana K.
name: Caswell, Julie A.
name: Kleinschmit, Jaana K.
Publisher: name: Unknown
Year: 1993
Subjects: Food Consumption/Nutrition/Food Safety

description: Federal ism disputes arising from state regulations, particularly those pursuing health, safety, and environmental goals, are a common feature of the U.S . political system. Discussion of bases for settling such disputes often focuses on the in- and out-state incidence of benefits and costs but incidence is a complex concept that has not been systematically analyzed. We discuss five factors important to evaluating incidence and present spillover criteria for judging disputes based on them. When applied to a Massachusetts regulation of daminozide residues in heat-processed apple products, the criteria reach different conclusions on its appropriateness, although the main criteria suggest it should be invalidated by the courts or preempted by federal law. The application illustrates how the spillover criteria can clarify analysis of federalism disputes.
The Impact of a Major Security Event on an Open Source Project: The Case of OpenSSL
Creators: name: Walden, James
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Context: The Heartbleed vulnerability brought OpenSSL to international attention in 2014. The almost moribund project was a key security component in public web servers and over a billion mobile devices. This vulnerability led to new investments in OpenSSL. Objective: The goal of this study is to determine how the Heartbleed vulnerability changed the software evolution of OpenSSL. We study changes in vulnerabilities, code quality, project activity, and software engineering practices. Method: We use a mixed methods approach, collecting multiple types of quantitative data and qualitative data from web sites and an interview with a developer who worked on post-Heartbleed changes. We use regression discontinuity analysis to determine changes in levels and slopes of code and project activity metrics resulting from Heartbleed. Results: The OpenSSL project made tremendous improvements to code quality and security after Heartbleed. By the end of 2016, the number of commits per month had tripled, 91 vulnerabilities were found and fixed, code complexity decreased significantly, and OpenSSL obtained a CII best practices badge, certifying its use of good open source development practices. Conclusions: The OpenSSL project provides a model of how an open source project can adapt and improve after a security event. The evolution of OpenSSL shows that the number of known vulnerabilities is not a useful indicator of project security. A small number of vulnerabilities may simply indicate that a project does not expend much effort to finding vulnerabilities. This study suggests that project activity and CII badge best practices may be better indicators of code quality and security than vulnerability counts.
description: 11 pages, 8 figures, 17th International Conference on Mining Software Repositories (MSR '20)
Multivariate probit regression using simulated maximum likelihood
Creators: name: Cappellari, Lorenzo
name: Jenkins, Stephen P.
name: Cappellari, Lorenzo
name: Jenkins, Stephen P.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Research Methods/ Statistical Methods
subject: maximum likelihood estimation
subject: multivariate probit regression model
subject: GHK
subject: mvprobit
subject: mvppred

description: We discuss the application of the GHK simulation method for maximum likelihood estimation of the multivariate probit regression model and describe and illustrate a Stata program mvprobit for this purpose.
Noninvasive monitoring of human circadian phase using model-based particle filter estimation
Creators: name: Mott, Christopher Grey
Publisher: name: University of British Columbia
Year: 2007

description: This thesis presents a novel method for monitoring the state of an individual’s circadian physiology. While scientific understanding of circadian physiology has advanced rapidly in recent years, the difficulty of measuring an individual’s circadian phase in a non-invasive and portable manner remains a barrier to applications in workplace safety and medical fields. Existing approaches to circadian monitoring use measurements from a single physiological marker such as core body temperature. A new modelling framework is developed here that allows the integration of multiple physiological measurements and a predictive model of circadian physiology dynamics. On top of this framework a particle filter estimation algorithm is implemented that accurately captures the nonlinear dynamics of the circadian system and allows real-time incorporation of sensory input using Bayesian statistics. A human study in which subjects spent five days in an laboratory while continuously monitored with an array of sensors generated data from which the algorithm is demonstrated. Tuning parameters and the theoretical performance limits of the algorithm are also explored through a series of simulations. The novel conceptual aspects of the modelling framework will require further validation however results indicate that this system presents a set of capabilities leading towards application for circadian monitoring beyond the laboratory.
Relatedness and Performance: A Reexamination of the Diversification-Performance Link
Creators: name: Ding, John Y.
name: Caswell, Julie A.
name: Ding, John Y.
name: Caswell, Julie A.
Publisher: name: Unknown
Year: 1993
Subjects: Agribusiness
Industrial Organization

description: Empirical studies of firm diversification suggest the existence of a positive relationship between the relatedness of diversification and firm performance. Using evidence from the food manufacturing sector, we find that this relationship is weak at best and that market share appears to be a more powerful predictor of firm performance.
Lean mainstream schemes for Stata 8 graphics
Creators: name: Juul, Svend
name: Juul, Svend
Publisher: name: Unknown
Year: 2003
Subjects: subject: Research Methods/ Statistical Methods
subject: graphs
subject: schemes

description: The new Stata 8 graphics are powerful and flexible. Now, a few months after the first release, the graphics still have some shortcomings—both in design and in the manual documenting the program—but progress is being made. The graph layout used throughout the Graphics Reference Manual has led some users to underestimate the potential of the program. This paper presents two schemes for a lean layout, conforming to the mainstream in scientific publishing.
Tailored flux pinning in superconductor/ferromagnet multilayers with engineered magnetic domain morphology from stripes to skyrmions
Creators: name: Palermo, X.
name: Reyren, N.
name: Mesoraca, S.
name: Samokhvalov, A. V.
name: Collin, S.
name: Godel, F.
name: Sander, A.
name: Bouzehouane, K.
name: Santamaría, J.
name: Cros, V.
name: Buzdin, A. I.
name: Villegas, Javier E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superconductor/Ferromagnet (S/F) hybrid systems show interesting magneto-transport behaviors that result from the transfer of properties between both constituents. For instance, magnetic memory can be transferred from the F into the S through the pinning of superconducting vortices by the ferromagnetic textures. The ability to tailor this type of induced behavior is important to broaden its range of applications. Here we show that engineering the F magnetization reversal allows tuning the strength of the vortex pinning (and memory) effects, as well as the field range in which they appear. This is done by using magnetic multilayers in which Co thin films are combined with different heavy metals (Ru, Ir, Pt). By choosing the materials, thicknesses, and stacking order of the layers, we can design the characteristic domain size and morphology, from out-of-plane magnetized stripe domains to much smaller magnetic skyrmions. These changes strongly affect the magneto-transport properties. The underlying mechanisms are identified by comparing the experimental results to a magnetic pinning model.
Bypassing Pauli's theorem
Creators: name: Isidro, J. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We define a quantum-mechanical time operator that is selfadjoint and compatible with the energy operator having a spectrum bounded from below. On their common domain, the operators of time and energy satisfy the expected canonical commutation relation. Pauli's theorem is bypassed because the correspondence between time and energy is not given by the standard Fourier transformation, but by a variant thereof known as the holomorphic Fourier transformation.
description: Final section expanded
Controlling vortical motion of particles in two-dimensional driven superlattices
Creators: name: Mukhopadhyay, Aritra K.
name: Schmelcher, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We demonstrate the control of vortical motion of neutral classical particles in driven superlattices. Our superlattice consists of a superposition of individual lattices whose potential depths are modulated periodically in time but with different phases. This driving scheme breaks the spatial reflection symmetries and allows an ensemble of particles to rotate with an average angular velocity. An analysis of the underlying dynamical attractors provides an efficient method to control the angular velocities of the particles by changing the driving amplitude. As a result, spatially periodic patterns of particles showing different vortical motion can be created. Possible experimental realizations include holographic optical lattice based setups for colloids or cold atoms.
Experimental determination of the number of flux lines trapped by micro-holes in superconducting samples
Creators: name: Silhanek, A. V.
name: Raedts, S.
name: Van Bael, M. J.
name: Moshchalkov, V. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The influence of a periodic landscape of pinning sites on the vortex dynamics in Pb thin films is explored by ac-susceptibility measurements. For different amplitudes h of the ac-drive, the ac-susceptibility x=x'+ix'' exhibits a complex field dependence associated with different dynamic regimes. At very low ac-drives where both, multiquanta vortices trapped by the antidots and interstitial vortices oscillate inside the pinning potential (intra-valley motion), a small kink in x'(H) together with a very low dissipation is observed. At intermediate ac-excitations such that vortices in the antidots remain pinned whereas interstices are driven out of the pinning well, a more pronounced kink in the screening coinciding with the onset of dissipation (x''(H) ~ 0) indicates the entrance of interstitial vortices. Eventually, at high enough amplitudes all vortices are set in motion and the penetration of interstitial vortices appears as a sudden reduction of the shielding power. We show that these distinctive features allow us to clearly identify the maximum number of flux quanta per hole regardless the vortex dynamic regime.
description: 6 pages, 3 figures, to be published in Phys. Rev. B
A Brief Survey on Replica Consistency in Cloud Environments
Creators: name: Campêlo, Robson A.
name: Casanova, Marco A.
name: Guedes, Dorgival O.
name: Laender, Alberto H. F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences
subject: H.2

description: Cloud computing is a general term that involves delivering hosted services over the Internet. With the accelerated growth of the volume of data used by applications, many organizations have moved their data into cloud servers to provide scalable, reliable and highly available services. A particularly challenging issue that arises in the context of cloud storage systems with geographically-distributed data replication is how to reach a consistent state for all replicas. This survey reviews major aspects related to consistency issues in cloud data storage systems, categorizing recently proposed methods into three categories: (1) fixed consistency methods, (2) configurable consistency methods and (3) consistency monitoring methods.
description: 13 pages, 1 figure, 2 tables, 62 references
Restructuring's Effect on Related and Unrelated Diversification Among Top Food Manufacturing Firms in the 1980s
Creators: name: Ding, John Y.
name: Caswell, Julie A.
name: Rogers, Richard T.
name: Ding, John Y.
name: Caswell, Julie A.
name: Rogers, Richard T.
Publisher: name: Unknown
Year: 1993
Subjects: Agribusiness
Industrial Organization

description: Corporate restructuring during the 1980s is argued to have focused on improving firm performance by increasing related and decreasing unrelated diversification. The restructuring patterns of top food manufacturing firms do not support this; instead, much of the restructuring appears to have been driven by the pursuit of stronger market positions. The