cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonorientable 3-manifolds admitting coloured triangulations with at most 30 tetrahedra
Creators: name: Bandieri, Paola
name: Cristofori, Paola
name: Gagliardi, Carlo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57Q15, 57M15, 57N10

description: We present the census of all non-orientable, closed, connected 3-manifolds admitting a rigid crystallization with at most 30 vertices. In order to obtain the above result, we generate, manipulate and compare, by suitable computer procedures, all rigid non-bipartite crystallizations up to 30 vertices.
description: 18 pages, 3 figures
Aspetti metodologici innovativi nella determinazione quali-quantitativa di contaminanti ambientali in prodotti della pesca
Creators: name: Serpe, Francesco Paolo
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: The legislation on environmental contaminants in food is constantly evolving. Some of these contaminants have already been the subject of official control of the food chain, others, such as polychlorinated biphenyls, are newly added, while others, such as organometallic compounds, are not yet covered. Present work is based on the development of innovative techniques aimed at the implementation of routine analytical methods for the control of substances recently and probable future inclusion in the Official monitoring plans, such as non dioxin-like polychlorinated biphenyls (NDL-PCB) and compounds of arsenic in highly contaminated products such as fishery products.
Regarding the NDL-PCB, this work aims to focus on validation study of an analytical screening method, aimed to detection of polychlorinated biphenyls (PCBs) in fish intended for human consumption, as required by Commission Decision 657/2002/EC. Regarding arsenic, the Committee of Experts of the FAO/WHO defined a tolerable intake only for inorganic arsenic, although it is known the toxicity of some organoarsenic compounds; here we present the validation study of a new method for a rapid and reliable speciation of these compounds in mussels.
This work has allowed us to achieve several goals. Firstly, it has been provided an example, so far not present in the scientific literature, of application of the European requirements for accreditation of the multiresidual screening method for NDL-PCBs determination, whose validity has been proved obtaining the recognition by the Italian accreditation body "Accredia". Moreover, guidance to the regulation has been also provided by the inclusion of substances characterized by overt toxicity and evident presence in foods of animal origin, which are not covered by national and European legislation, such as the various forms of arsenic; moreover, the analytical solutions to laboratories for Official control were provided.
Effect of vortex and entropy sources in sound generation for compressible cavity flow
Creators: name: Arya, Nitish
name: De, Ashoke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The present study reports the effect of different source terms on the near and far-field acoustic characteristics of compressible flow over a rectangular cavity using hybrid computational aeroacoustics methodology. We use a low dispersive and dissipative compressible fluid flow solver in conjunction with an acoustic perturbation equation solver based on the spectral/hp element method. The hybrid approach involves calculating the base fields and the acoustic sources from a fluid simulation in the first step. In the next step, the acoustic solver utilizes the variables to predict the acoustic propagation due to the given sources. The validation of the methodology against benchmark cases provides quite accurate results while compared against the existing literature. The study is then extended to assess the importance of the entropy source term for the flow over a rectangular cavity. The predictions of hybrid simulations with vortex and entropy source terms reproduce the perturbation pressure values very close to the existing direct numerical simulation results. Moreover, the results suggest that the use of just the vortex source terms over-predicts the perturbation pressure near the source region. Finally, we have carried out detailed simulations with all the source terms to investigate the noise sources for compressible flow over the cavity for different Mach number ranges (M = 0.4; 0.5; 0.6; 0.7; 1.5). The obtained acoustic spectra and the sound directivity are in close agreement with the reference experiment.
A high-level graphics language based on the Graphical Kernel System
Creators: name: Sun, Hanqiu
Publisher: name: University of British Columbia
Year: 2010

description: Being an application area of programming languages, graphics languages should keep pace with the development of today's programming languages. Data types, structural operations and free layout of statements provide a more effective means of picture generation, i.e., modelling, rendering and viewing. The Graphical Kernel System (GKS), an international standard graphics language since 1984, is specified on a subroutine basis, therefore suffering from the lack of such high-level language features. This thesis investigates and implements the FORTRAN language binding of GKS into a high-level programming language (HL/GKS) by a generated precompiler. The weaknesses and restrictions of GKS and its FORTRAN binding are discussed. The advanced features and functions of HL/GKS are addressed. The graphical syntax and semantics rules of the extended portion of HL/GKS are introduced. It is expected that HL/GKS will have more attractive features and effective productivity for GKS applications compared to the procedure-level GKS system. The input statements of HL/GKS have the capability of picture communication by interactive devices and hence enable the implementation of sophisticated graphical application programs.
Borel subalgebras of root-reductive Lie algebras
Creators: name: Dan-Cohen, Elizabeth
Publisher: name: arXiv
Year: 2007
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B65, 17B20

description: This paper generalizes the classification in a paper of Dimitrov and Penkov of Borel subalgebras of gl_infty. Root-reductive Lie algebras are direct limits of finite-dimensional reductive Lie algebras along inclusions preserving the root spaces with respect to nested Cartan subalgebras. A Borel subalgebra of a root-reductive Lie algebra is by definition a maximal locally solvable subalgebra. The main general result of this paper is that a Borel subalgebra of an infinite-dimensional indecomposable root-reductive Lie algebra is the simultaneous stabilizer of a certain type of generalized flag in each of the standard representations. For the three infinite-dimensional simple root-reductive Lie algebras more precise results are obtained. The map sending a maximal closed (isotropic) generalized flag in the standard representation to its stabilizer hits Borel subalgebras, yielding a bijection in the cases of sl_infty and sp_infty; in the case of so_infty the fibers are of size one and two. A description is given of a nice class of toral subalgebras contained in any Borel subalgebra. Finally, certain Borel subalgebras of a general root-reductive Lie algebra are seen to correspond bijectively with Borel subalgebras of the commutator subalgebra, which are understood in terms of the special cases.
description: 21 pages
Effective temperature for hopping transport in a Gaussian DOS
Creators: name: Jansson, F.
name: Baranovskii, S. D.
name: Gebhard, F.
name: Österbacka, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: For hopping transport in disordered materials, the mobility of charge carriers is strongly dependent on temperature and the electric field. Our numerical study shows that both the energy distribution and the mobility of charge carriers in systems with a Gaussian density of states, such as organic disordered semiconductors, can be described by a single parameter - effective temperature, dependent on the magnitude of the electric field. Furthermore, this effective temperature does not depend on the concentration of charge carriers, while the mobility does depend on the charge carrier concentration. The concept of the effective temperature is shown to be valid for systems with and without space-energy correlations in the distribution of localized states.
description: 7 pages, 8 figures
Generic equations for pattern formation in evolving interfaces
Creators: name: Castro, M.
name: Muñoz-García, J.
name: Cuerno, R.
name: Hernández, M. García
name: Vázquez, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a general formalism which allows us to derive the evolution equations describing one-dimensional (1D) and isotropic 2D interfacelike systems, that is based on symmetries, conservation laws, multiple scale arguments, and exploits the relevance of coarsening dynamics. Our approach becomes especially significant in the presence of surface morphological instabilities and allows us to classify the most relevant nonlinear terms in the continuum description of these systems. The formalism applies to systems ranging from eroded nanostructures to macroscopic pattern formation. In particular, we show the validity of the theory for novel experiments on ion plasma erosion.
Music Genre Bars
Creators: name: Panda, Swaroop
name: Roy, S. T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Music Genres, as a popular meta-data of music, are very useful to organize, explore or search music datasets. Soft music genres are weighted multiple-genre annotations to songs. In this initial work, we propose horizontally stacked bar charts to represent a music dataset annotated by these soft music genres. For this purpose, we take an example of a toy dataset consisting of songs labelled with help of three music genres; Blues, Jazz and Country. We demonstrate how such a stacked bar chart can be used as a slider for user-input in an interface. We implement this by embedding this genre bar in a streaming application prototype and show its utility in choosing playlists. We finally conclude by proposing further work and future explorations on our proposed preliminary research.
description: A version of this paper was presented at IEEE VIS 2020
X-ray Observations of 1ES 1959+650 in its high activity state in 2016-2017 with AstroSat and Swift
Creators: name: Chandra, Sunil
name: Boettcher, Markus
name: Goswami, Pranjupriya
name: Singh, Kulinder Pal
name: Zacharias, Michael
name: Kaur, Navpreet
name: Bhattacharyya, Sudip
name: Ganesh, Shashikiran
name: Dorner, Daniela
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a comprehensive multi-frequency study of the HBL 1ES 1959+650 using data from various facilities during the period 2016-2017, including X-ray data from {\it AstroSat} and {\it Swift} during the historically high X-ray flux state of the source observed until February 2021. The unprecedented quality of X-ray data from high cadence monitoring with the {\it AstroSat} during 2016-2017 enables us to establish a detailed description of X-ray flares in 1ES 1959+650. The synchrotron peak shifts significantly between different flux states, in a manner consistent with a geometric (changing Doppler factor) interpretation. A time-dependent leptonic diffusive-shock-acceleration and radiation transfer model is used to reproduce the spectral energy distributions (SEDs) and X-ray light curves, to provide insight into the particle acceleration during the major activity periods observed in 2016 and 2017. The extensive data of {\it Swift}-XRT from December 2015 to February 2021 (Exp. = 411.3 ks) reveals a positive correlation between flux and peak position.
description: 25 pages, 10 figures, 10 tables [Accepted by the Astrophysical Journal]
Phase space quantization and Loop Quantum Cosmology: A Wigner function for the Bohr-compactified real line
Creators: name: Fewster, Christopher J.
name: Sahlmann, Hanno
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 81S30

description: We give a definition for the Wigner function for quantum mechanics on the Bohr compactification of the real line and prove a number of simple consequences of this definition. We then discuss how this formalism can be applied to loop quantum cosmology. As an example, we use the Wigner function to give a new quantization of an important building block of the Hamiltonian constraint.
description: 26 pages, 3 figures
VAFB-2023-03: National Register of Historic Places Evaluation: Prehistoric Sites in Zones 1 and 2, Vandenberg Space Force Base, Santa Barbara County, California
Creators: name: Zalud, Arianna
Year: 2023

description: This document is an archaeological evaluation Section 110 report. Numerous archaeological excavation projects have occurred on Vandenberg SFB wherein a sufficient amount of data has been obtained to evaluate the eligibility of prehistoric archaeological site for listing in the National Register, but the federal agency eligibility determination was never presented to the State Historic Preservation Officer (SHPO) for consensus determination. The goal of this Project is to provide evaluations to the SHPO to obtain consensus. This report evaluates the eligibility of seven sites in Zone 1 and three sites in Zone 2 for listing in the National Register. Data from each of the 10 sites in Zones 1 and 2 selected for evaluation were collected and reviewed, and the site’s significance was evaluated against the criteria for listing in the National Register. These sites are discussed in numerical order by trinomial in Chapters 5–14.

In summary, six prehistoric archaeological sites are recommended as not eligible for listing in the NRHP which include CA-SBA-705, -3032, -3042, -3044,- 3213, and -3226. However, four archaeological sites are recommended as eligible for inclusion in the NRHP which included CA-SBA-772, -972, -2000, and -3949.
Interplay of transport mechanisms during the evaporation of a pinned sessile water droplet
Creators: name: Akdag, Osman
name: Akkus, Yigit
name: Cetin, Barbaros
name: Dursunkaya, Zafer
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Droplet evaporation has been intensively investigated in past decades owing to its emerging applications in diverse fields of science and technology. Yet the role transport mechanisms has been the subject of a heated debate, especially the presence of Marangoni flow in water droplets. This work aims to draw a clear picture of the switching transport mechanisms inside a drying pinned sessile water droplet in both the presence and absence of thermocapillarity by developing a comprehensive model that accounts for all pertinent physics in both phases as well as interfacial phenomena at the interface. The model reveals a hitherto unexplored mixed radial and buoyant flow by shedding light on the transition from buoyancy induced Rayleigh flow to the radial flow causing coffee ring effect. Predictions of the model excellently match previous experimental results across varying substrate temperatures only in the absence of Marangoni flow. When thermocapillarity is accounted for, strong surface flows shape the liquid velocity field during most of the droplet lifetime and the model starts to overestimate evaporation rates with increasing substrate temperature.
Are Irish voters moving to the left?
Creators: name: Müller, Stefan
name: Regan, Aidan
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: The Irish party system has been an outlier in comparative politics. Ireland never had a left-right divide in parliament, and for decades, the dominant centrist political parties competed around a centre-right policy agenda. The absence of an explicit left-right divide in party competition suggested that Irish voters, on average, occupy centre-right policy preferences. Combining survey data since 1973 and all Irish election studies between 2002 and 2020, we show that the average Irish voter now leans to the centre-left. We also show that income has recently emerged as a predictor of left-right self-placement, and that left-right positions increasingly structure vote choice. These patterns hold when using policy preferences on taxes, spending, and government interventions to reduce inequality as alternative indicators. We outline potential explanations for this leftward shift, and conclude that these developments might be anchored in economic inequalities and the left populist strategies of Sinn Féin.
Variations on leptogenesis
Creators: name: Sierra, Diego Aristizabal
name: Losada, Marta
name: Nardi, Enrico
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study variations of the standard leptogenesis scenario that can arise if an additional mass scale related to the breaking of some new symmetry (as for example a flavor or the B-L symmetry) is present below the mass $M_{N_1}$ of the lightest right-handed Majorana neutrino. Our scheme is inspired by U(1) models of flavor à la Froggatt-Nielsen, and involves new vectorlike heavy fields $F$. We show that depending on the specific hierarchy between $M_{N_1}$ and the mass scale of the fields $F$, qualitatively different realizations of leptogenesis can emerge. We compute the CP asymmetries in $N_1$ decays in all the relevant cases, and we conclude that in most situations leptogenesis could be viable at scales much lower than in the standard scenario.
description: One error corrected, several references added, results unchanged. 17 pages
Brexit and prosperity but defeat: the economic vote conundrum in the 2020 Irish election
Creators: name: Lewis-Beck, Michael S.
name: Quinlan, Stephen
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Neuroscience
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: At face, Ireland's economy had staged a remarkable recovery by 2020 since the devastating impact of the Global Financial Crisis. The economy was the fastest growing in Europe, unemployment had reached record lows, and Ireland's debt was back to its lowest level since 2009. The traditional economic voting model assumes voters punish outgoing governments for poor economic performance by voting against them but rewards incumbents for a sound economy by voting for them. Nevertheless, Irish voters delivered a stunning rebuke to the Fine Gael government in 2020, registering an incumbent administration's sixth-worst performance since 1932, raising questions about the applicability of the economic vote. Using the 2020 Irish National Election Study, our contribution unpacks this apparent puzzle. We uncover that macroeconomic conditions were less rosy than at first sight, a pattern recognised by voters. We find the economic vote was alive and well, with voter economic perceptions, and their views on income redistribution (and taxes/spending) having a potent effect on the vote. Brexit, as an economic issue, however, was not influential in shaping the vote. The Fine Gael challenge, and the answer to the conundrum, was most voters perceived the economy was lackluster and the government was on the wrong side of economic policy preferences of most voters.
Why Machine Learning Integrated Patient Flow Simulation?
Creators: name: Abuhay, Tesfamariam M.
name: Mamuye, Adane
name: Robinson, Stewart
name: Kovalchuk, Sergey V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: Patient flow analysis can be studied from a clinical and or operational perspective using simulation. Traditional statistical methods such as stochastic distribution methods have been used to construct patient flow simulation submodels such as patient inflow, Length of Stay (LoS), Cost of Treatment (CoT) and Clinical Pathway (CP) models. However, patient inflow demonstrates seasonality, trend and variation over time. LoS, CoT and CP are significantly determined by attributes of patients and clinical and laboratory test results. For this reason, patient flow simulation models constructed using traditional statistical methods are criticized for ignoring heterogeneity and their contribution to personalized and value based healthcare. On the other hand, machine learning methods have proven to be efficient to study and predict admission rate, LoS, CoT, and CP. This paper, hence, describes why coupling machine learning with patient flow simulation is important and proposes a conceptual architecture that shows how to integrate machine learning with patient flow simulation.
description: Proceedings of the Operational Research Society Simulation Workshop 2021 (SW21)
Gallium arsenide materials and device fabrications
Creators: name: Tan, Kim Wah
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this work was to study certain aspects of device fabrication and material properties of ion implanted MESFETs in semi-insulating LEC GaAs. The fabrication technology and materials properties of GaAs are presently the chief limitations in the way of application of GaAs ion-implanted devices in high speed circuits. One part of the work involved studies on the effects of etching away the surface layers of the starting semi-insulating LEC GaAs. The point here is that it appears that impurities and other defects can sometimes be concentrated at the surface. A test structure containing MESFETs, Schottky diodes and van der Pauw crosses was fabricated using ion implantation on etched and unetched substrates. Improved activation and device characteristics were found on the etched sample. The second part of the work involved studies of the effects of dislocations on device characteristics. The topic is important because dislocations may give scatter in the threshold voltage of MESFETs which would, naturally, become a problem for large scale integration. Arrays of devices were fabricated and their characteristics measured. The position of dislocations was located by etching in such a way as to leave the ghost of the devices behind. The results were unfortunately not conclusive because of the difficulty in accurately etching the samples. We were subsequently forced to use fewer samples than planned.
VAFB-2024-08: National Register of Historic Places Evaluation: Prehistoric Sites in Zones 6 through 10 Vandenberg Space Force Base Santa Barbara County, California
Creators: name: Zalud, Arianna
Year: 2024

description: This document is a Section 110 evaluation report for sites in Zones 6-10 on Vandenberg Space Force Base California. Briefly, a review of existing documentation was used prepare this Section 110 National Register evaluation report for 25 prehistoric sites in Zones 6 through 10. Based on review of existing documentation of previous studies at these sites, 22 of the sites evaluated are recommended eligible for listing in the National Register and the other 3 sites evaluated are not eligible.
Characterizing multistability regions in the parameter space of the Mackey-Glass delayed system
Creators: name: Tarigo, Juan P.
name: Stari, Cecilia
name: Cabeza, Cecilia
name: Marti, Arturo C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Chaotic Dynamics (nlin.CD)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Proposed to study the dynamics of physiological systems in which the evolution depends on the state in a previous time, the Mackey-Glass model exhibits a rich variety of behaviors including periodic or chaotic solutions in vast regions of the parameter space. This model can be represented by a dynamical system with a single variable obeying a delayed differential equation. Since it is infinite dimensional requires to specify a real function in a finite interval as an initial condition. Here, the dynamics of the Mackey-Glass model is investigated numerically using a scheme previously validated with experimental results. First, we explore the parameter space and describe regions in which solutions of different periodic or chaotic behaviors exist. Next, we show that the system presents regions of multistability, i.e. the coexistence of different solutions for the same parameter values but for different initial conditions. We remark the coexistence of periodic solutions with the same period but consisting of several maximums with the same amplitudes but in different orders. We characterize the multistability regions by introducing families of representative initial condition functions and evaluating the abundance of the coexisting solutions. These findings contribute to describe the complexity of this system and explore the possibility of possible applications such as to store or to code digital information.
description: 12 pages, 9 figures, figures improved, minor typos solved, new figures, several additions
Influence of the nano-grain depletion in photon-dominated regions: Application to the gas physics and chemistry in the Horsehead
Creators: name: Schirmer, T.
name: Habart, E.
name: Ysard, N.
name: Bron, E.
name: Bourlot, J. Le
name: Verstraete, L.
name: Abergel, A.
name: Jones, A. P.
name: Roueff, E.
name: Petit, F. Le
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The large disparity in physical conditions from the diffuse interstellar medium (ISM) to denser clouds such as photon-dominated regions (PDRs) triggers an evolution of the dust properties (i.e. composition, size, and shape). The gas physics and chemistry are tightly connected to these dust properties and are therefore affected by dust evolution and especially the nano-grain depletion in the outer irradiated part of PDRs. We highlight the influence of nano-grain depletion on the gas physics and chemistry in the Horsehead nebula, a prototypical PDR. We used a model for atomic and molecular gas in PDRs, the Meudon PDR code, using diffuse ISM-like dust and Horsehead-like dust to study the influence of nano-grain depletion on the gas physics and chemistry, focusing on the impact on photoelectric heating and H2 formation and, therefore, on the H2 gas lines. We find that nano-grain depletion in the Horsehead strongly affects gas heating through the photoelectric effect and thus the gas temperature and the H2 formation, hence the H -> H2 position. Consequently, the first four pure rotational lines of H2 (e.g. 0-0 S(0), S(1), S(2), and S(3)) vary by a factor of 2 to 14. The 0-0 S(3) line that is often underestimated in models is underestimated even more when taking nano-grain depletion into account due to the decrease in gas heating through the photoelectric effect. This strongly suggests that our understanding of the excitation of H2 and/or of heating processes in the Horsehead, and more generally in PDRs, is still incomplete. Nano-grain depletion in the outer part of the Horsehead has a strong influence on several gas tracers that will be prominent in JWST observations of irradiated clouds. We therefore need to take this depletion into account in order to improve our understanding of the Horsehead, and more generally PDRs, and to contribute to the optimal scientific return of the mission.
description: Accepted in A&A, comments welcome
Coordinated Cyber-Attack Detection Model of Cyber-Physical Power System Based on the Operating State Data Link
Creators: name: Wang, Lei
name: Xu, Pengcheng
name: Qu, Zhaoyang
name: Bo, Xiaoyong
name: Dong, Yunchang
name: Zhang, Zhenming
name: Li, Yang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Existing coordinated cyber-attack detection methods have low detection accuracy and efficiency and poor generalization ability due to difficulties dealing with unbalanced attack data samples, high data dimensionality, and noisy data sets. This paper proposes a model for cyber and physical data fusion using a data link for detecting attacks on a Cyber-Physical Power System (CPPS). Two-step principal component analysis (PCA) is used for classifying the system's operating status. An adaptive synthetic sampling algorithm is used to reduce the imbalance in the categories' samples. The loss function is improved according to the feature intensity difference of the attack event, and an integrated classifier is established using a classification algorithm based on the cost-sensitive gradient boosting decision tree (CS-GBDT). The simulation results show that the proposed method provides higher accuracy, recall, and F-Score than comparable algorithms.
description: Accepted by Frontiers in Energy Research
High energy neutrinos from neutralino annihilations in the Sun
Creators: name: Barger, Vernon
name: Keung, Wai-Yee
name: Shaughnessy, Gabe
name: Tregre, Adam
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Neutralino annihilations in the Sun to weak boson and top quark pairs lead to high-energy neutrinos that can be detected by the IceCube and KM3 experiments in the search for neutralino dark matter. We calculate the neutrino signals from real and virtual WW, ZZ, Zh, and $t \bar t$ production and decays, accounting for the spin-dependences of the matrix elements, which can have important influences on the neutrino energy spectra. We take into account neutrino propagation including neutrino oscillations, matter-resonance, absorption, and nu_tau regeneration effects in the Sun and evaluate the neutrino flux at the Earth. We concentrate on the compelling Focus Point (FP) region of the supergravity model that reproduces the observed dark matter relic density. For the FP region, the lightest neutralino has a large bino-higgsino mixture that leads to a high neutrino flux and the spin-dependent neutralino capture rate in the Sun is enhanced by 10^3 over the spin-independent rate. For the standard estimate of neutralino captures, the muon signal rates in IceCube are identifiable over the atmospheric neutrino background for neutralino masses above M_Z up to 400 GeV.
description: 45 pages, 18 figures and 5 tables, PRD version
A supercurrent switch in graphene $π$-junctions
Creators: name: Linder, Jacob
name: Yokoyama, Takehito
name: Huertas-Hernando, Daniel
name: Sudbø, Asle
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the supercurrent in a superconductor/ferromagnet/superconductor graphene junction. In contrast to its metallic counterpart, the oscillating critical current in our setup decays only weakly upon increasing exchange field and junction width. We find an unusually large residual value of the supercurrent at the oscillatory cusps due to a strong deviation from a sinusoidal current-phase relationship. Our findings suggest a very efficient device for dissipationless supercurrent switching.
description: 4 pages, 3 figures. High-quality figures available in published version. Accepted for publication in Phys. Rev. Lett
title: How We Are with Animals: Understanding Connection with Nature in Urban Settings Through Multispecies Ethnography
Creators: name: Smith, Harriet
Publisher: name: Goldsmiths, University of London
Year: 2022

description: This thesis examines how human-animal relations are formative to feelings of connection with nature in urban contexts. The research is undertaken at three field sites in London: the London Zoo, Camley Street Natural Park and Kentish Town City Farm. My investigation attends to the situatedness of multispecies encounters. I provide a relational understanding of urban nature-places and their public engagement practices. I investigate how each organisation’s ontology and epistemology mediates and constructs human and animal encounters at the field sites. I examine this dynamic by critiquing conservation public engagement, and by comparing the zoo and the nature park as conservation based organisations, with the grassroots, multispecies community at the city farm. I utilise a range of methods including multispecies participant observation and participatory experiments and interventions. I pay specific attention to the role of affect and creative activities, such as drawing, as potential tools to engender attunement and embodied communication. I utilise and rework naturalist methods for understanding animals, on the basis that such fieldwork often produces feelings of empathy and attunement between field researchers and research subjects. I investigate how these methods could be repurposed, through participatory interventions, in order to engender more caring and attuned understandings of other animals in urban contexts. I argue that through shifting the value registers towards a non-anthropocentric approach, people feel more included in the more-than-human world.
Thermalization and its mechanism for generic isolated quantum systems
Creators: name: Rigol, Marcos
name: Dunjko, Vanja
name: Olshanii, Maxim
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Time dynamics of isolated many-body quantum systems has long been an elusive subject. Very recently, however, meaningful experimental studies of the problem have finally become possible, stimulating theoretical interest as well. Progress in this field is perhaps most urgently needed in the foundations of quantum statistical mechanics. This is so because in generic isolated systems, one expects nonequilibrium dynamics on its own to result in thermalization: a relaxation to states where the values of macroscopic quantities are stationary, universal with respect to widely differing initial conditions, and predictable through the time-tested recipe of statistical mechanics. However, it is not obvious what feature of many-body quantum mechanics makes quantum thermalization possible, in a sense analogous to that in which dynamical chaos makes classical thermalization possible. For example, dynamical chaos itself cannot occur in an isolated quantum system, where time evolution is linear and the spectrum is discrete. Underscoring that new rules could apply in this case, some recent studies even suggested that statistical mechanics may give wrong predictions for the outcomes of relaxation in such systems. Here we demonstrate that an isolated generic quantum many-body system does in fact relax to a state well-described by the standard statistical mechanical prescription. Moreover, we show that time evolution itself plays a merely auxiliary role in relaxation and that thermalization happens instead at the level of individual eigenstates, as first proposed by J.M. Deutsch and M. Srednicki. A striking consequence of this eigenstate thermalization scenario is that the knowledge of a single many-body eigenstate suffices to compute thermal averages-any eigenstate in the microcanonical energy window will do, as they all give the same result.
description: 8 pages, 6 figures, as published
On the Numerical Evaluation of Fredholm Determinants
Creators: name: Bornemann, Folkmar
Publisher: name: arXiv
Year: 2008
Subjects: subject: Numerical Analysis (math.NA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 65R20, 65F40, 47G10, 15A52

description: Some significant quantities in mathematics and physics are most naturally expressed as the Fredholm determinant of an integral operator, most notably many of the distribution functions in random matrix theory. Though their numerical values are of interest, there is no systematic numerical treatment of Fredholm determinants to be found in the literature. Instead, the few numerical evaluations that are available rely on eigenfunction expansions of the operator, if expressible in terms of special functions, or on alternative, numerically more straightforwardly accessible analytic expressions, e.g., in terms of Painleve transcendents, that have masterfully been derived in some cases. In this paper we close the gap in the literature by studying projection methods and, above all, a simple, easily implementable, general method for the numerical evaluation of Fredholm determinants that is derived from the classical Nystrom method for the solution of Fredholm equations of the second kind. Using Gauss-Legendre or Clenshaw-Curtis as the underlying quadrature rule, we prove that the approximation error essentially behaves like the quadrature error for the sections of the kernel. In particular, we get exponential convergence for analytic kernels, which are typical in random matrix theory. The application of the method to the distribution functions of the Gaussian unitary ensemble (GUE), in the bulk and the edge scaling limit, is discussed in detail. After extending the method to systems of integral operators, we evaluate the two-point correlation functions of the more recently studied Airy and Airy1 processes for the first time.
description: 43 pages, 9 figures
Why is Tin so soft?
Creators: name: Piekarewicz, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The distribution of isoscalar monopole strength in the neutron-even 112-124Sn-isotopes has been computed using a relativistic random-phase-approximation approach. The accurately-calibrated model used here (``FSUGold'') has been successful in reproducing both ground-state observables as well as collective excitations - including the giant monopole resonance (GMR) in 90Zr, 144Sm, and 208Pb. Yet this same model significantly overestimates the GMR energies in the Sn isotopes. It is argued that the question of ``Why is Tin so soft?'' becomes an important challenge to the field and one that should be answered without sacrificing the success already achieved by several theoretical models.
description: 5 pages, 3 figures to be submitted to PRC
Synthesis, spectral characterisations of 3t-pentyl-2r,6c-diarylpiperidin-4-one oxime picrates: DFT studies and potent anti-microbial agents
Creators: name: Savithiri, S.
name: Rajarajan, G.
name: Bharanidharan, S.
name: doss, M. Arockia
Publisher: name: Taylor & Francis
Year: 2022
Subjects: Biophysics
Biochemistry
Physical Sciences not elsewhere classified
Biotechnology
Chemical Sciences not elsewhere classified

description: In this paper, various substituted 3t-pentyl-2r,6c-diarylpiperidin-4-one oxime picrates were synthesised and characterised by elemental analysis, FT-IR, NMR, UV–Visible and Fluorescence spectral techniques. For compound 1, NMR spectral assignments were made unambiguously by their one-dimensional (1H and 13C NMR) and two-dimensional (1H–1H COSY, NOESY, HSQC and HMBC) spectra. The observed chemical shifts and coupling constants suggest that compounds 1–7 adopt normal chair conformation with the equatorial orientation of all the substituents like aryl group at C(2) and C(6) and pentyl group at C(3). Compounds 2 and 7 exhibited potent anti-bacterial activity and fungal activity against all the tested strains while all the other compounds showed moderate activity. The molecular structure of compounds (1–7) was optimised at the density functional theory (DFT)/B3LYP/6-311++G(d,p) level of basis set. The calculated first hyperpolarisability (β0) values show that all the molecules might have non-linear optical (NLO) behaviour. The HOMO–LUMO transition implies that intra-molecular charge transfer takes place within the molecule. The molecular electrostatic potential (MEP) surface is used to understand the reactive sites of a molecule.
Improved exclusion limit for light dark matter from $e^+e^-$ annihilation in NA64
Creators: name: Andreev, Yu.
name: Banerjee, D.
name: Bernhard, J.
name: Bondi, M.
name: Burtsev, V.
name: Celentano, A.
name: Charitonidis, N.
name: Chumakov, A.
name: Cooke, D.
name: Crivelli, P.
name: Depero, E.
name: Dermenev, A.
name: Donskov, S.
name: Dusaev, R.
name: Enik, T.
name: Feshchenko, A.
name: Frolov, V.
name: Gardikiotis, A.
name: Gerassimov, S.
name: Gninenko, S.
name: Hoesgen, M.
name: Jeckel, M.
name: Kachanov, V.
name: Karneyeu, A.
name: Kekelidze, G.
name: Ketzer, B.
name: Kirpichnikov, D.
name: Kirsanov, M.
name: Kolosov, V.
name: Konorov, I.
name: Kovalenko, S.
name: Kramarenko, V.
name: Kravchuk, L.
name: Krasnikov, N.
name: Kuleshov, S.
name: Lyubovitskij, V.
name: Lysan, V.
name: Marsicano, L.
name: Matveev, V.
name: Mikhailov, Yu.
name: Molina, L.
name: Peshekhonov, D.
name: Polyakov, V.
name: Radics, B.
name: Rojas, R.
name: Rubbia, A.
name: Samoylenko, V.
name: Sieber, H.
name: Shchukin, D.
name: Tikhomirov, V.
name: Tlisova, I.
name: Toropin, A.
name: Trifonov, A.
name: Ulloa, P.
name: Vasilishin, B.
name: Vasquez, G.
name: Volkov, P.
name: Volkov, V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The current most stringent constraints for the existence of sub-GeV dark matter coupling to Standard Model via a massive vector boson $A^\prime$ were set by the NA64 experiment for the mass region $m_{A^\prime}\lesssim 250$ MeV, by analyzing data from the interaction of $2.84\cdot10^{11}$ 100-GeV electrons with an active thick target and searching for missing-energy events. In this work, by including $A^\prime$ production via secondary positron annihilation with atomic electrons, we extend these limits in the $200$-$300$ MeV region by almost an order of magnitude, touching for the first time the dark matter relic density constrained parameter combinations. Our new results demonstrate the power of the resonant annihilation process in missing energy dark-matter searches, paving the road to future dedicated $e^+$ beam efforts.
description: Version accepted for publication as a Letter in Phys. Rev. D
Aberration cancellation in quantum interferometry
Creators: name: Bonato, C.
name: Sergienko, A. V.
name: Saleh, B. E. A.
name: Bonora, S.
name: Villoresi, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report the first experimental demonstration of even-order aberration cancellation in quantum interferometry. The effect is a spatial counterpart of the spectral group velocity dispersion cancellation, which is associated with spectral entanglement. It is manifested in temporal interferometry by virtue of the multi-parameter spatial-spectral entanglement. Spatially-entangled photons, generated by spontaneous parametric down conversion, were subjected to spatial aberrations introduced by a deformable mirror that modulates the wavefront. We show that only odd-order spatial aberrations affect the quality of quantum interference.
Galaxy Distribution as a Probe of the Ringlike Dark Matter Structure in the Galaxy Cluster Cl0024+17
Creators: name: Qin, Bo
name: Shan, Huan-Yuan
name: Tilquin, Andre
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In a galaxy cluster, galaxies are mostly collisionless particles in recent epoches. They resemble collisionless cold dark matter particles in some way. Therefore, the spatial distributions of dark matter and cluster galaxies might be expected to possess similar features in the gravitational potential of a cluster. Here we use the galaxy distribution in cluster Cl0024+17 to probe for the ringlike dark matter structure recently discovered by means of strong and weak lensing observations. The galaxies are taken from the catalog of Czoske et al., which contains 650 objects with measured redshifts, of which ~300 galaxies have redshifts in the range 0.37
description: 3 pages 2 figures, minor corrections & new references, ApJ Letters, 2008, 679, L81
title: Fourier Analysis of DG Schemes for Advection‐Diffusion
Creators: name: Ortleb, Sigrun
Publisher: name: Universität Kassel
Year: 2021
Subjects: subject: 510
subject: Harmonische Analyse
subject: Diskontinuierliche Galerkin-Methode
subject: Wellenausbreitung

description: Gefördert im Rahmen des Projekts DEAL
CA-SBA-742: Archaeological site record for CA-SBA-742
Creators: name: Kekich, Jessica
Year: 1971
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: United States of America (Country)
valueUri: https://core.tdar.org/browse/geographic-keyword/384/united-states-of-america-country
subject: North America (Continent)
valueUri: https://core.tdar.org/browse/geographic-keyword/2890/north-america-continent
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: CA-SBA-742
valueUri: https://core.tdar.org/browse/site-name/136924/ca-sba-742
subject: temporary shellfish collecting site
valueUri: https://core.tdar.org/browse/site-type/5002/temporary-shellfish-collecting-site
subject: Shell
valueUri: https://core.tdar.org/browse/material-type/14/shell
subject: Monterey Chert
valueUri: https://core.tdar.org/browse/material-type/334/monterey-chert
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Haliotis cracherodii
valueUri: https://core.tdar.org/browse/material-type/1476/haliotis-cracherodii
subject: Abalone
valueUri: https://core.tdar.org/browse/material-type/342/abalone
subject: Mussel
valueUri: https://core.tdar.org/browse/material-type/1270/mussel
subject: Tegula
valueUri: https://core.tdar.org/browse/material-type/3801/tegula
subject: Haliotis Rufesens
valueUri: https://core.tdar.org/browse/material-type/3833/haliotis-rufesens
subject: mytilus
valueUri: https://core.tdar.org/browse/material-type/3835/mytilus
subject: Hammerstone
valueUri: https://core.tdar.org/browse/other-keyword/5939/hammerstone
subject: MIdden
valueUri: https://core.tdar.org/browse/other-keyword/135815/midden
subject: Core
valueUri: https://core.tdar.org/browse/other-keyword/618/core
subject: Archaeological Overview
valueUri: https://core.tdar.org/browse/investigation-type/1/archaeological-overview

description: This document is the archaeological site record for CA-SBA-742. The record consists of 1 recordation event.