cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Supplemental data from: Inference of phylogenetic networks from sequence data using composite likelihood
Creators: name: Kong, Sungsik
name: Swofford, David
name: Kubatko, Laura
Publisher: name: Zenodo
Year: 2024
Subjects: Composite Likelihood
Hybridization
Network Multispecies Coalescent
network inference
phylogenetic network
Site Pattern

description: While phylogenies have been essential in understanding how species evolve, they do not adequately describe some evolutionary processes. For instance, hybridization, a common phenomenon where interbreeding between two species leads to the formation of a new species, must be depicted by a phylogenetic network, a structure that modifies a phylogenetic tree by allowing two branches to merge into one, resulting in reticulation. However, existing methods for estimating networks become computationally expensive as the dataset size and/or topological complexity increase. The lack of methods for scalable inference hampers phylogenetic networks from being widely used in practice, despite accumulating evidence that hybridization occurs frequently in nature. Here, we propose a novel method, PhyNEST (Phylogenetic Network Estimation using SiTe patterns), that estimates binary, level-1 phylogenetic networks with a fixed, user-specified number of reticulations directly from sequence data. By using the composite likelihood as the basis for inference, PhyNEST is able to use the full genomic data in a computationally tractable manner, eliminating the need to summarize the data as a set of gene trees prior to network estimation. To search network space, PhyNEST implements both hill climbing and simulated annealing algorithms. PhyNEST assumes that the data are composed of coalescent independent sites that evolve according to the Jukes-Cantor substitution model and that the network has a constant effective population size. Simulation studies demonstrate that PhyNEST is often more accurate than two existing composite likelihood summary methods (SNaQ and PhyloNet) and that it is robust to at least one form of model misspecification (assuming a less complex nucleotide substitution model than the true generating model). We applied PhyNEST to reconstruct the evolutionary relationships among Heliconius butterflies and Papionini primates, characterized by hybrid speciation and widespread introgression, respectively. PhyNEST is implemented in an open-source Julia package and is publicly available at https://github.com/sungsik-kong/PhyNEST.jl.
description: Funding provided by: The Ohio State UniversityROR ID: https://ror.org/00rs6vg23Award Number:
Funding provided by: Society for the Study of EvolutionROR ID: https://ror.org/057kr0a20Award Number:
Hawking radiation and black hole gravitational back reaction - A quantum geometrodynamical simplified model
Creators: name: Marto, João
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The purpose of this paper is to analyse the back reaction problem, between Hawking radiation and the black hole, in a simplified model for the black hole evaporation in the quantum geometrodynamics context. The idea is to transcribe the most important characteristics of the Wheeler-DeWitt equation into a Schrödinger's type of equation. Subsequently, we consider Hawking radiation and black hole quantum states evolution under the influence of a potential that includes back reaction. Finally, entropy is estimated as a measure of the entanglement between the black hole and Hawking radiation states in this model.
description: 19 pages, 5 figures. Version accepted for publication in Universe, MDPI
Augmented Abstractive Summarization With Document-LevelSemantic Graph
Creators: name: Bi, Qiwei
name: Li, Haoyuan
name: Lu, Kun
name: Yang, Hanfang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Previous abstractive methods apply sequence-to-sequence structures to generate summary without a module to assist the system to detect vital mentions and relationships within a document. To address this problem, we utilize semantic graph to boost the generation performance. Firstly, we extract important entities from each document and then establish a graph inspired by the idea of distant supervision \citep{mintz-etal-2009-distant}. Then, we combine a Bi-LSTM with a graph encoder to obtain the representation of each graph node. A novel neural decoder is presented to leverage the information of such entity graphs. Automatic and human evaluations show the effectiveness of our technique.
description: Accepted to Journal of Data Science
The Basins Zoo
Creators: name: Wagemakers, Alexandre
Publisher: name: arXiv
Year: 2025
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Research in multistable systems is a flourishing field with countless examples and applications across scientific disciplines. I present a catalog of multistable dynamical systems covering relevant fields of knowledge. This work is focused on providing a research tool to the community in the form classified examples and computer code to reproduce basins of attraction. The companion code to this article can be found at https://github.com/awage/BasinsCollection or https://doi.org/10.5281/zenodo.15124200.
Toward an understanding of entanglement for generalized n-qubit W-states
Creators: name: Tamaryan, Levon
name: Kim, Hungsoo
name: Jung, Eylee
name: Hwang, Mi-Ra
name: Park, DaeKil
name: Tamaryan, Sayatnova
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We solve stationarity equations of the geometric measure of entanglement for multi-qubit W-type states. In this way we compute analytically the maximal overlap of one-parameter $n$-qubit and two-parameter four-qubit W-type states and their nearest product states. Possible extensions to arbitrary W-type states and geometrical interpretations of these results are discussed in detail.
description: V1:10 pages, 3 figures V2: 14 pages, one more section is added for the computation of the maximal overlap probability for the two-parametric W-state in 4-qubit system V3: 17 pages, one more 3-dimensional figure is added. Geometric interpretation of the maximal overlap probability is more clearly discussed
Bironium basicolle – Middle
Creators: name: Löbl, Ivan
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Bironium
Bironium basicolle

description: Bironium basicolle (Pic) Bironium longipes Csiki, 1909: 72 (homonym). Heteroscapha basicollis Pic, 1956: 72. Bironium basicolle; LÖBL, 1975: 418, Figs 79, 80. Bironium basicolle; LÖBL, 1989: 368. Material examined. Additional specimens were not found in the examined collections. Distribution. Papua New Guinea. Comments. Both, B. basicolle (Pic) and B. longipes Csiki were based on specimens collected at Sattelberg, Huon Peninsula, Morobe Province. This is one of the species possessing entire basal striae joined to the lateral striae.
description: Published as part of Löbl, Ivan, 2021, A review of the Bironium Csiki, 1909 (Coleoptera: Staphylinidae: Scaphidiinae) of New Guinea and the Moluccas, pp. 227-248 in Acta Musei Moraviae 106 (2) on pages 230-231, DOI: 10.5281/zenodo.5706173
description: {"references": ["CSIKI E. 1909: Coleoptera nova in Museo nationali hungarica II. Annales Musei nationalis Hungarici 7: 340 \u2013 343, pl. II.", "PIC M. 1956: Nouveaux colOoptLres de diverses familles. Annales historico-naturales Musei nationalis Hungarici (N. S.) 7: 71 \u2013 92.", "LOBL I. 1975: Beitrag zur Kenntnis der Scaphidiidae (Coleoptera) von Neuguinea. Revue suisse de Zoologie 82: 369 \u2013 420.", "LOBL I. 1989: Sur les Bironium (Coleoptera, Scaphidiidae) de la Nouvelle-GuinOe. Mitteilungen der Schweizerischen entomologischen Gesellschaft 62: 367 \u2013 374."]}
Nonlinear modal testing of damped structures: Velocity feedback vs. phase resonance
Creators: name: Scheel, Maren
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In recent years, a new method for experimental nonlinear modal analysis has been developed, which is based on the extended periodic motion concept. The method is well suited to experimentally obtain amplitude-dependent modal properties (modal frequency, damping ratio and deflection shape) for strongly nonlinear systems. To isolate a nonlinear mode, the negative viscous damping term of the extended periodic motion concept is approximated by ensuring phase resonance between excitation and response. In this work, an alternative approach to isolate a nonlinear mode is developed and analyzed: velocity feedback. The accuracy of the extracted modal properties and robustness of velocity feedback is first assessed by means of simulated experiments. The two approaches phase resonance and velocity feedback are then compared in terms of accuracy and experimental implementation effort. To this end, both approaches are applied to an experimental specimen, which is a cantilevered beam influenced by a strong dry friction nonlinearity. In this work, the discussion is limited to single-point excitation. It is shown that a robust implementation of velocity feedback requires the measurement of several response signals, distributed over the structure. An advantage of velocity feedback is that no controller is needed. The accuracy of the modal properties can, however, suffer from imperfections of the excitation mechanism such as a phase lag due to exciter-structure interactions or gyroscopic forces due to single-point excitation.
description: The final version of this article is available online at https://www.sciencedirect.com/science/article/pii/S0888327021006683
Vacuum instability due to the creation of neutral Fermion with anomalous magnetic moment by magnetic-field inhomogeneities
Creators: name: Adorno, T. C.
name: He, Zi-Wang
name: Gavrilov, S. P.
name: Gitman, D. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study neutral Fermions pair creation with anomalous magnetic moment from the vacuum by time-independent magnetic-field inhomogeneity as an external background. We show that the problem is technically reduced to the problem of charged-particle creation by an electric step, for which the nonperturbative formulation of strong-field QED is used. We consider a magnetic step given by an analytic function and whose inhomogeneity may vary from a "gradual" to a "sharp" field configuration. We obtain corresponding exact solutions of the Dirac-Pauli equation with this field and calculate pertinent quantities characterizing vacuum instability, such as the differential mean number and flux density of pairs created from the vacuum, vacuum fluxes of energy and magnetic moment. We show that the vacuum flux in one direction is formed from fluxes of particles and antiparticles of equal intensity and with the same magnetic moments parallel to the external field. Backreaction to the vacuum fluxes leads to a smoothing of the magnetic-field inhomogeneity. We also estimate critical magnetic field intensities, near which the phenomenon could be observed.
description: 30 pages, 1 figure
Østerbroundersøgelsen 1, 1976-1978
Creators: Peter Lange
Jørgen Nyboe
Gorm Boje Jensen
Merete Appleyard
Publisher: name: Rigsarkivet
Year: 2022

description:
      Undersøgelsens hovedformål er følgende:

      1. Måling af sygdomshyppighed - prævalens og incidens af iskæmisk hjertesygdom.

      2. Måling og beskrivelse af sundhedsrelateret adfærd og  risikofaktorer (determinanter) - bredt defineret, omfattende   biologiske, psykologiske og sociale variable som potentielt er af betydning for iskæmisk hjertesygdom.

      3. Longitudinel evaluering af de undersøgte risikovariable med henblik på analyse af iskæmisk hjertesygdoms   årsagssammenhænge, med det overordnede mål at bidrage til et rationelt grundlag for forebyggelse og   behandling.

      4. Skabe og vedligeholde en database, som muliggør rekruttering af kontrolmaterialer og kliniske materialer.

      5. Den tredie Østerbroundersøgelse danner basis for en række associerede epidemiologiske projekter uden for den kardiovaskulære epidemiologi
Bironium flavapex Lobl 2015
Creators: name: Löbl, Ivan
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Bironium
Bironium flavapex

description: Bironium flavapex Löbl Bironium flavapex Löbl, 2015: 170, Figs 16 -19. Material examined. Additional specimens not found in the new collections. Distribution. Indonesia: Moluccas, Morotai Island. Comments. The followings characters are here newly given: male protarsomere Iabout as wide as half of protibial apex, shorter than protarsomeres II and III combined; protarsomeres III slightly lobed, with long ventral setae not widened.
description: Published as part of Löbl, Ivan, 2021, A review of the Bironium Csiki, 1909 (Coleoptera: Staphylinidae: Scaphidiinae) of New Guinea and the Moluccas, pp. 227-248 in Acta Musei Moraviae 106 (2) on page 233, DOI: 10.5281/zenodo.5706173
description: {"references": ["LOBL I. 2015: Contribution to the knowledge of the Scaphidiinae (Coleoptera: Staphylinidae) of the Moluccas. Stuttgarter Beitrage zur Naturkunde A, Neue Serie 8: 165 \u2013 187."]}
A Deployment Model to Extend Ethically Aligned AI Implementation Method ECCOLA
Creators: name: Antikainen, Jani
name: Agbese, Mamia
name: Alanen, Hanna-Kaisa
name: Halme, Erika
name: Isomäki, Hannakaisa
name: Jantunen, Marianna
name: Kemell, Kai-Kristian
name: Rousi, Rebekah
name: Vainio-Pekka, Heidi
name: Vakkuri, Ville
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: There is a struggle in Artificial intelligence (AI) ethics to gain ground in actionable methods and models to be utilized by practitioners while developing and implementing ethically sound AI systems. AI ethics is a vague concept without a consensus of definition or theoretical grounding and bearing little connection to practice. Practice involving primarily technical tasks like software development is not aptly equipped to process and decide upon ethical considerations. Efforts to create tools and guidelines to help people working with AI development have been concentrating almost solely on the technical aspects of AI. A few exceptions do apply, such as the ECCOLA method for creating ethically aligned AI -systems. ECCOLA has proven results in terms of increased ethical considerations in AI systems development. Yet, it is a novel innovation, and room for development still exists. This study aims to extend ECCOLA with a deployment model to drive the adoption of ECCOLA, as any method, no matter how good, is of no value without adoption and use. The model includes simple metrics to facilitate the communication of ethical gaps or outcomes of ethical AI development. It offers the opportunity to assess any AI system at any given lifecycle phase, e.g., opening possibilities like analyzing the ethicality of an AI system under acquisition.
DNA Mutations via Chern-Simons Currents
Creators: name: Bajardi, Francesco
name: Altucci, Lucia
name: Benedetti, Rosaria
name: Capozziello, Salvatore
name: Del Sorbo, Maria Rosaria
name: Franci, Gianluigi
name: Altucci, Carlo
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Physics (physics.gen-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We test the validity of a possible schematization of DNA structure and dynamics based on the Chern-Simons theory, that is a topological field theory mostly considered in the context of effective gravity theories. By means of the expectation value of the Wilson Loop, derived from this analogue gravity approach, we find the point-like curvature of genomic strings in KRAS human gene and COVID-19 sequences, correlating this curvature with the genetic mutations. The point-like curvature profile, obtained by means of the Chern-Simons currents, can be used to infer the position of the given mutations within the genetic string. Generally, mutations take place in the highest Chern-Simons current gradient locations and subsequent mutated sequences appear to have a smoother curvature than the initial ones, in agreement with a free energy minimization argument.
description: 25 Pages. Accepted for publication in European Physicsl Journal Plus
Østerbroundersøgelsen 2, 1981-1983
Creators: Peter Lange
Jørgen Nyboe
Gorm Boje Jensen
Merete Appleyard
Publisher: name: Rigsarkivet
Year: 2022

description:
      Undersøgelsens hovedformål er følgende:

      1. Måling af sygdomshyppighed - prævalens og incidens af iskæmisk hjertesygdom.

      2. Måling og beskrivelse af sundhedsrelateret adfærd og  risikofaktorer (determinanter) - bredt defineret, omfattende   biologiske, psykologiske og sociale variable som potentielt er af betydning for iskæmisk hjertesygdom.

      3. Longitudinel evaluering af de undersøgte risikovariable med henblik på analyse af iskæmisk hjertesygdoms   årsagssammenhænge, med det overordnede mål at bidrage til et rationelt grundlag for forebyggelse og behandling.

      4. Skabe og vedligeholde en database, som muliggør rekruttering af kontrolmaterialer og kliniske materialer.

      5. Den tredie Østerbroundersøgelse danner basis for en række associerede epidemiologiske projekter uden for den kardiovaskulære epidemiologi
Tully-Fisher Relations and Retardation Theory for Galaxies
Creators: name: Yahalom, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Galaxies are huge physical systems having dimensions of many tens of thousands of light years. Thus any change at the galactic center will be noticed at the rim only tens of thousands of years later. Those retardation effects seem to be neglected in present day galactic modelling used to calculate rotational velocities of matter in the rims of the galaxy. The significant differences between the predictions of Newtonian theory and observed velocities are usually explained by either assuming dark matter or by modifying the laws of gravity (MOND). In this essay we will show that taking retardation effects into account one can explain the azimuthal velocities of galactic matter and the well known Tully-Fisher relations of galaxies.
description: 10 pages, 2 figures
Bironium glabrum Lobl 1989
Creators: name: Löbl, Ivan
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Bironium
Bironium glabrum

description: Bironium glabrum Löbl Bironium glabrum Löbl, 1989: 370, Figs 4 -6. Material examined. Additional specimens not found in the new collections. Distribution. Papua New Guinea. Comments. The species was based on two specimens from Popondetta and Kokoda, both in the Oro Province. The followings characters are here newly given: male protarsomere Inearly as wide as half of protibial apex, slightly shorter than protarsomeres II and III combined; protarsomeres III not lobed, with long ventral setae not widened.
description: Published as part of Löbl, Ivan, 2021, A review of the Bironium Csiki, 1909 (Coleoptera: Staphylinidae: Scaphidiinae) of New Guinea and the Moluccas, pp. 227-248 in Acta Musei Moraviae 106 (2) on pages 233-234, DOI: 10.5281/zenodo.5706173
description: {"references": ["LOBL I. 1989: Sur les Bironium (Coleoptera, Scaphidiidae) de la Nouvelle-GuinOe. Mitteilungen der Schweizerischen entomologischen Gesellschaft 62: 367 \u2013 374."]}
Infall time in the Eddington-Finkelstein metric, with application to Einstein-Rosen bridges
Creators: name: Koiran, Pascal
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Eddington-Finkelstein metric is obtained from the Schwarzschild metric by a change of the time variable. It is well known that a test mass falling into a black hole does not reach the event horizon for any finite value of the Schwarzschild time variable $t$. By contrast, we show that the event horizon is reached for a finite value of the Eddington-Finkelstein time variable $t'$. Then we study in Eddington-Finkelstein time the fate of a massive particle traversing an Einstein-Rosen bridge and obtain a different conclusion than recent proposals in the literature: we show that the particle reaches the wormhole throat for a finite value $t'_1$ of the time marker $t'$, and continues its trajectory across the throat for $t'>t'_1$. Such a behavior does not make sense in Schwarzschild time since it would amount to continuing the trajectory of the particle "beyond the end of time."
description: To appear in International Journal of Modern Physics D
Udenrigministeriets afleveringsoversigt 1946-1972
Creators: Ikke Oplyst
Publisher: name: Rigsarkivet
Year: 2022

description: Protokoller over hvilke korrespondancer udenrigsministeriet har haft. Protokollen har til formåln at give et overblik over hvilket bind de pågældende skrivelser og telegrammer ligger i, og hvilken afdeling i udenrigsministeriet, der haft med det at gøre.
Additional file 1 of What influences the implementation of kangaroo mother care? An umbrella review
Creators: name: Cai, Qian
name: Chen, Dan-Qi
name: Wang, Hua
name: Zhang, Yue
name: Yang, Rui
name: Xu, Wen-Li
name: Xu, Xin-Fen
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Science Policy

description: Additional file 1. PRISMA 2020 Checklist.
A discussion of the stylistic development in the dated oil paintings of Lionel Lemoine Fitzgerald (1890-1956)
Creators: name: Sens, Karen Linda
Publisher: name: University of British Columbia
Year: 2010

description: This thesis discusses the stylistic development of Lionel LeMoine FitzGerald (1890-1956) as seen in his dated oil paintings. Chapter I outlines FitzGerald's formative years (1890-1919). It attempts to explain how his love of the prairies and interest in art developed. It suggests the dominant influences in his study of art. It includes a stylistic discussion of FitzGerald's earliest works, including his well known, Late Fall, Manitoba (1918). Chapter II attempts to explain why FitzGerald suddenly lightened and brightened his palette. It explores the sources which may have influenced the development of FitzGerald's impressionistic style (1920-October 1921) and it provides a stylistic analysis of two of his impressionistic works, Summer East Kildonan (1920) and Summer Afternoon, The Prairie (1921). Chapter llldiscusses the importance of FitzGerald's first trip to New York, his study at the Art Students' League (December 1921 - May 1922) and his study of the works of European masters at the Metropolitan Museum. It explores the influence his two art instructors, Boardman Robinson and Kenneth Miller may have had on his work. It also suggests the importance of the works of Cezanne to FitzGerald's development. Chapter IV discusses the new directions FitzGerald pursued upon his return from New York. It reveals that FitzGerald's new style of painting, as seen in Potato Patch, Snowflake (1925) was fairly dependent on the external influences he had seen while in New York. This chapter also discusses the importance of FitzGerald's appointment as instructor for the Winnipeg School of Art, to his development of a new more studied style, as seen in Williamson's Garage (1927). Chapter V explores the influences of his second trip to the East (June 1 -July 1, 1930) on his artistic development, through revealing statements drawn from FitzGerald's Diary. Chapter VI reveals FitzGerald's striving towards more personal expressions during the thirties and forties, as seen in three major works from this period, Doc Snider's House (1931), Jar (1938), and Still Life: Two Apples (1940). Chapter VII discusses FitzGerald's gradual move towards abstraction. Suggestions of this direction, are already noted in From an Upstairs Window, Winter (1948). It includes a stylistic analysis of two abstract works, Composition No. 1 (c. 1950-51) and Abstract: Green and Gold (1954). The last major oil, Hat (1955), is discussed in terms of a final statement made by the artist. An attempt is made to determine the essential characteristics of FitzGerald's paintings, which enable them to transcend their regional boundaries and speak to all of Canada.
Escape Rates in a Stochastic Environment with Multiple Scales
Creators: name: Forgoston, Eric
name: Schwartz, Ira B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We consider a stochastic environment with two time scales and outline a general theory that compares two methods to reduce the dimension of the original system. The first method involves the computation of the underlying deterministic center manifold followed by a naive replacement of the stochastic term. The second method allows one to more accurately describe the stochastic effects and involves the derivation of a normal form coordinate transform that is used to find the stochastic center manifold. The results of both methods are used along with the path integral formalism of large fluctuation theory to predict the escape rate from one basin of attraction to another. The general theory is applied to the example of a surface flow described by a generic, singularly perturbed, damped, nonlinear oscillator with additive, Gaussian noise. We show how both nonlinear reduction methods compare in escape rate scaling. Additionally, the center manifolds are shown to predict high pre-history probability regions of escape. The theoretical results are confirmed using numerical computation of the mean escape time and escape prehistory, and we briefly discuss the extension of the theory to stochastic control.
description: 32 pages, 8 figures, Final revision to appear in SIAM Journal on Applied Dynamical Systems
A Numerical Analysis of a Micro-scale Piezoelectric Cantilever Beam: the Effect of Dimension Parameters on the Eigen Frequency
Creators: name: Fanse, Tejas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Eigen frequency is one of the most important system responses to be considered while designing a micro-scale piezoelectric cantilever beam. This paper investigates and analyzes the effect of dimension parameters of a micro-scale piezoelectric cantilever beam on its eigen frequency. The beam is assumed to be made of silicon. Structural mechanics based finite element analysis is carried out in the environment of COMSOL Multiphysics software for the study. It is seen that length and thickness have continuous effect on the eigen frequency; whereas, the effect of width is discontinuous.
description: 6 pages, 7 figures
Electronic properties of bulk and thin film SrRuO$_3$: a search for the metal-insulator transition
Creators: name: Rondinelli, James M.
name: Caffrey, Nuala M.
name: Sanvito, Stefano
name: Spaldin, Nicola A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We calculate the properties of the 4$d$ ferromagnet SrRuO$_3$ in bulk and thin film form with the aim of understanding the experimentally observed metal to insulator transition at reduced thickness. Although the spatial extent of the 4$d$ orbitals is quite large, many experimental results have suggested that electron-electron correlations play an important role in determining this material's electronic structure. In order to investigate the importance of correlation, we use two approaches which go beyond the conventional local density approximation to density functional theory (DFT): the local spin density approximation + Hubbard $U$ (LSDA+$U$) and the pseudopotential self-interaction correction (pseudo-SIC) methods. We find that the details of the electronic structure predicted with the LSDA do not agree with the experimental spectroscopic data for bulk and thin film SrRuO$_3$. Improvement is found by including electron-electron correlations, and we suggest that bulk orthorhombic SrRuO$_3$ is a {\it weakly strongly-correlated} ferromagnet whose electronic structure is best described by a 0.6 eV on-site Hubbard term, or equivalently with corrections for the self-interaction error. We also perform {\it ab initio} transport calculations that confirm that SrRuO$_3$ has a negative spin polarization at the Fermi level, due to the position of the minority Ru 4$d$ band center. Even with correlations included in our calculations we are unable to reproduce the experimentally observed metal-insulator transition, suggesting that the electronic behavior of SrRuO$_3$ ultra-thin films might be dominated by extrinsic factors such as surface disorder and defects.
description: 15 pages, 12 figures, 3 tables
QSNET, a network of clocks for measuring the stability of fundamental constants
Creators: name: Barontini, G.
name: Boyer, V.
name: Calmet, X.
name: Fitch, N. J.
name: Forgan, E. M.
name: Godun, R. M.
name: Goldwin, J.
name: Guarrera, V.
name: Hill, I. R.
name: Jeong, M.
name: Keller, M.
name: Kuipers, F.
name: Margolis, H. S.
name: Newman, P.
name: Prokhorov, L.
name: Rodewald, J.
name: Sauer, B. E.
name: Schioppo, M.
name: Sherrill, N.
name: Tarbutt, M. R.
name: Vecchio, A.
name: Worm, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Experiment (hep-ex)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The QSNET consortium is building a UK network of next-generation atomic and molecular clocks that will achieve unprecedented sensitivity in testing variations of the fine structure constant, $α$, and the electron-to-proton mass ratio, $μ$. This in turn will provide more stringent constraints on a wide range of fundamental and phenomenological theories beyond the Standard Model and on dark matter models.
Quenching of Gamow-Teller strengths and two particle -- two hole configurations
Creators: name: Gambacurta, Danilo
name: Grasso, Marcella
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We apply the charge-exchange subtracted second random-phase approximation (SSRPA), based on Skyrme functionals, to investigate Gamow-Teller resonances in several closed-shell and closed-subshell nuclei, located in different regions of the nuclear chart. After having discussed the SSRPA findings obtained within different approximation schemes in $^{48}$Ca, we compare our results with {\it{ab-initio}} coupled-cluster predictions available for C and O isotopes, where two-body currents are included. Our integrated strenghts, obtained by using one-body transition operators, are lower compared to the corresponding {\it{ab-initio}} results. This indicates that, within our model, quenching effects are mainly driven by the inclusion of two particle - two hole configurations and that the role of a two-body contribution in the transition operator is less important than in the coupled-cluster approach. By analyzing heavier nuclei, $^{90}$ Zr and $^{132}$Sn, we confirm the same conclusions that we have recently drawn for $^{48}$Ca: the inclusion of two particle - two hole configurations is very effective in our model for providing strengths which are significantly more quenched than in other theoretical models and, thus, in better agreement with the experimental measurements. This occurs because two particle - two hole configurations have a density which strongly increases with the excitation energy. Their inclusion thus pushes a significant amount of the strength to higher energies, compared to what happens in other theoretical models, reducing in this way the cumulative sum of the strength up to excitation energies around 20-30 MeV.
The Mini-SiTian Array: first-two-year operation
Creators: name: He, Min
name: Wu, Hong
name: Ge, Liang
name: Tian, Jian-feng
name: Wang, Zheng
name: Mu, Hai-yang
name: Zhang, Yu
name: Huang, Yang
name: Zheng, Jie
name: Fan, Zhou
name: Li, Zheng-yang
name: Gu, Hong-hui
name: Han, Heng-geng
name: Xiao, Kai
name: Li, Zhi-rui
name: Jin, Jun-jie
name: Wang, Bei-chuan
name: Ma, Jun
name: Zou, Jin-hang
name: Wu, Ying
name: Guo, Jiu-peng
name: Fang, Li-guo
name: Hou, Zhi-gang
name: Zhang, Bo-wen
name: Xu, Yun-fei
name: Mao, Yi-ming
name: Liu, Shuai
name: Ren, Fang-zhou
name: Wang, Cun-shi
name: Li, Xue
name: Wu, Yong-xin
name: Zheng, Chuan-jie
name: Lin, Yi-yang
name: He, Shun-xuan
name: Xu, Kun
name: Zhu, Yi-nan
name: Tu, Zhi-jun
name: Zhao, Xin-lin
name: Sun, Yong-kang
name: Bao, Hua
name: Sun, Xue-ang
name: Cui, Ying-zhen
name: Mou, Lan-ya
name: Shi, Rui-feng
name: Shi, Jing-hang
name: Chen, Xun-hao
name: Hong, Yu-liang
name: Huang, Hao-miao
name: Lin, Zi-kun
name: Pan, Ze-yang
name: Zhao, Rui-ning
name: Cai, Ying-jie
name: Wang, Rui
name: Zhang, Jun-bo
name: Wang, Jin-hu
name: Zhou, Wan
name: Li, Sheng-ming
name: Ren, Jing
name: Chen, Xiao-han
name: Li, Xiang-yu
name: Zhang, Li-yue
name: Mo, Hao
name: Zhou, Yu-yang
name: Wang, Jia-hui
name: Lv, Bu-hui
name: Shang, Zhao-hui
name: Zhao, Yun-ning
name: Zhang, Jin-lei
name: Sun, Yue
name: Liu, Xiao-peng
name: Han, Zi-jian
name: Mao, Yong-na
name: Liu, Ji-feng
Publisher: name: arXiv
Year: 2025
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The SiTian project, designed to utilize 60 telescopes distributed across multiple sites in China, is a next-generation time-domain survey initiative. As a pathfinder for the SiTian project, the Mini-SiTian (MST) has been proposed and implemented to test the SiTian's brain and data pipeline, and to evaluate the feasibility of its technology and science cases. Mounted at the Xinglong Observatory, the MST project comprises three 30 cm telescopes and has been operated since Nov. 2022. Each telescope of the MST possesses a large field of view, covering $2.29^{\circ}$ $\times$ $1.53^{\circ}$ FOV, and is equipped with $g'$, $r'$ and $i'$ filters, respectively. Acting as the pioneer of the forthcoming SiTian project, the MST is dedicated to the discovery of variable stars, transients, and outburst events, and has already obtained some interesting scientific results. In this paper, we will summarize the first-two-year operation of the MST project.
description: 10 pages, 11 figures, Accepted for publication in a special issue of Research in Astronomy and Astrophysics on the Mini-SiTian Array
Semifluxon molecule under control
Creators: name: Dewes, Andreas
name: Gaber, Tobias
name: Koelle, Dieter
name: Kleiner, Reinhold
name: Goldobin, Edward
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Josephson junctions with a phase drop pi in the ground state allow to create vortices of supercurrent carrying only half of the magnetic flux quantum Phi_0~2.07*10^-15 Wb. Such semifluxons have two-fold degenerate ground states denoted up (with flux +Phi_0/2 and supercurrent circulating clockwise) and down (with flux -Phi_0/2 and supercurrent circulating counterclockwise). We investigate a molecule consisting of two coupled semifluxons in a 0-pi-0 long Josephson junction. The fluxes (polarities) of semifluxons are measured by two on-chip SQUIDs. By varying the dc bias current applied to the 0-pi-0 junction, we demonstrate controllable manipulation and switching between two states, up-down and down-up, of a semifluxon molecule. These results provide a major step towards employing semifluxons as bits or qubits for classical and quantum digital electronics.
The Mini-SiTian Array: Design and application of Master Control System
Creators: name: Wang, Zheng
name: Zou, Jin-hang
name: Ge, Liang
name: He, Min
name: Li, Jian
name: Hu, Yi
name: Tian, Jianfeng
Publisher: name: arXiv
Year: 2025
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The SiTian Project represents a groundbreaking initiative in astronomy, aiming to deploy a global network of telescopes, each with a 1-meter aperture, for comprehensive time-domain sky surveys. The network's innovative architecture features multiple observational nodes, each comprising three strategically aligned telescopes equipped with filters. This design enables three-color (g, r, i) channel imaging within each node, facilitating precise and coordinated observations. As a pathfinder to the full-scale project, the Mini-SiTian Project serves as the scientific and technological validation platform, utilizing three 30-centimeter aperture telescopes to validate the methodologies and technologies planned for the broader SiTian network. This paper focuses on the development and implementation of the Master Control System (MCS),and the central command hub for the Mini-SiTian array. The MCS is designed to facilitate seamless communication with the SiTian Brain, the project's central processing and decision-making unit, while ensuring accurate task allocation, real-time status monitoring, and optimized observational workflows. The system adopts a robust architecture that separates front-end and back-end functionalities.A key innovation of the MCS is its ability to dynamically adjust observation plans in response to transient source alerts, enabling rapid and coordinated scans of target sky regions...(abridged)
description: 16 pages, 7 figures, Accepted for publication in a special issue of Research in Astronomy and Astrophysics on the Mini-SiTian Array
Disentangling Hate in Online Memes
Creators: name: Cao, Rui
name: Fan, Ziqing
name: Lee, Roy Ka-Wei
name: Chong, Wen-Haw
name: Jiang, Jing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Computation and Language (cs.CL)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Hateful and offensive content detection has been extensively explored in a single modality such as text. However, such toxic information could also be communicated via multimodal content such as online memes. Therefore, detecting multimodal hateful content has recently garnered much attention in academic and industry research communities. This paper aims to contribute to this emerging research topic by proposing DisMultiHate, which is a novel framework that performed the classification of multimodal hateful content. Specifically, DisMultiHate is designed to disentangle target entities in multimodal memes to improve hateful content classification and explainability. We conduct extensive experiments on two publicly available hateful and offensive memes datasets. Our experiment results show that DisMultiHate is able to outperform state-of-the-art unimodal and multimodal baselines in the hateful meme classification task. Empirical case studies were also conducted to demonstrate DisMultiHate's ability to disentangle target entities in memes and ultimately showcase DisMultiHate's explainability of the multimodal hateful content classification task.
description: Paper accepted in ACM Multimedia 2021
Evolving Evolutionary Algorithms with Patterns
Creators: name: Oltean, Mihai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: A new model for evolving Evolutionary Algorithms (EAs) is proposed in this paper. The model is based on the Multi Expression Programming (MEP) technique. Each MEP chromosome encodes an evolutionary pattern that is repeatedly used for generating the individuals of a new generation. The evolved pattern is embedded into a standard evolutionary scheme that is used for solving a particular problem. Several evolutionary algorithms for function optimization are evolved by using the considered model. The evolved evolutionary algorithms are compared with a human-designed Genetic Algorithm. Numerical experiments show that the evolved evolutionary algorithms can compete with standard approaches for several well-known benchmarking problems.
description: arXiv admin note: substantial text overlap with arXiv:2109.13110
The Mini-SiTian Array: Optical design
Creators: name: Han, Zi-Jian
name: Li, Zheng-Yang
name: Chen, Chao
name: Cong, Jia-Nan
name: Liu, Ting-Ting
name: Zhang, Yi-Ming
name: Li, Qing-Shan
name: Chen, Liang
name: Kong, Wei-Bin
Publisher: name: arXiv
Year: 2025
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Time-domain astronomy is one of the most important areas. Large sky area, deep-field, and short timescale are the priority of time-domain observations. SiTian is an ambitious ground-based project processing all sky optical monitoring, aiming for sky-survey timescale of less than 1 day. It is developed by the Chinese Academy of Sciences, an integrated network of dozens of 1-m-class telescopes deployed worldwide. The Mini-SiTian Telescope Array is carried out for demonstrations on optical design, group scheduling, and software pipeline developments, to overcome the high technical and financial difficulties of SiTian project. One array contains three 300 mm F/3 telescope, with FOV of 5 degrees over 400-1000 nm wavelength range. The Mini-SiTian Telescope Array is now under commissioning in Xinglong Observatory, and a perfect platform for technical research and educational purposes.
description: 11 pages, 15 figures. Accepted for publication in a special issue of Research in Astronomy and Astrophysics on the Mini-SiTian Array
The tomb of Margaret of Brabant by Giovanni Pisano
Creators: name: Blackman, Peter John
Publisher: name: University of British Columbia
Year: 2010

description: Unique in its design, the tomb of Margaret of Brabant is one of the last works of sculpture produced by Giovanni Pisano. Executed between the years of 1312 and 1313, the monument represents the only extant essay, made by Giovanni Pisano, in the field of tomb sculpture. Originally erected in the church of San Francesco di Castelletto, Genoa, the tomb was partially destroyed between 1798 and 1810, along with the church. As it now survives, the tomb consists of six marble fragments; a group representing Margaret of Brabant with two attendants, a Madonna, a figure representing the virtue Justice, and the head from such a figure representing Temperance. The fragments of the monument present problems of reconstruction and interpretation. Documentation of the tomb project is minimal and no contemporary descriptions of the original appearance are known. Although the Justice figure and the Temperance fragment correspond to the same elements in a group of four, mid-fourteenth century virtue figures which are likely to have been copied from the tomb's original complement, the fragments of the tomb, in and of themselves, do not provide a sufficient basis for reconstruction. Interpretation of the tomb has been hindered by its fragmented state, yet two major opinions have been published. Harald Keller has suggested that the tomb represents a Last Judgment scene. Margaret of Brabant is to be seen as rising from the grave at the call of the final trumpets. Herbert von Einem, on the other hand, relates the rising figure of Margaret of Brabant to French examples in relief, of the Assumption of the Virgin and interprets the political significance of this association in the light of Dante's Commedia. An attempt is made here to elucidate both the problems of reconstruction and interpretation offered by the tomb of Margaret of Brabant. By the study of related, contemporary tomb designs, particularly those of Arnolfo di Cambio and Tino di Camaino, the examination of the available documentation and description, a thesis for the reconstruction of the monument and a definition of the elaborate, multi-level, wall appended tomb type which it introduces is presented. By an examination of contemporary theology concerning the nature of the human soul and its fate, a thesis for the interpretation of the tomb as a unified programme illustrating the ascension of the soul of Margaret of Brabant, immediately after death, is expounded. In conclusion, the position of the tomb of Margaret of Brabant in the contemporary tradition of funerary sculpture is analysed. Giovanni Pisano's contributions and innovations are seen to herald a significant change in the conception of tomb design of the period.
Analysing powers of hydrogen and helium-4 for protons at intermediate energies
Creators: name: Dubois, Richard
Publisher: name: University of British Columbia
Year: 2010

description: An absolute calibration of the analysing powers of hydrogen and helium-4 has been performed at 24° and 15° lab, respectively, for protons between 200 and 520 MeV with a typical uncertainty of ±2%. In a double scattering experiment, the TRIUMF polarized proton beam was scattered, first at 15° on a liquid helium target, then a second time at 24° on a polyethylene target. The method combines the advantages of the very high analysing power of helium and the small difference in incident energies on both scatters. The analysing power of helium-4 was measured to be 0.964 ± .012, 0.792 ± .011 and 0.476 ± .018 at energies of 222, 325 and 518 MeV, respectively. The analysing power of hydrogen was found to be 0.294 ± 0.003, 0.354 ± 0.005 and 0.412 ± 0.013 at proton energies of 205, 308 and 499 MeV, respectively. This represents a great improvement over previous p-p data which was not known to better than ±6%, and so will permit a more accurate determination of nucleon-nucleon phase shifts.
Bironium loksai Lobl – Metanepisterna 1989
Creators: name: Löbl, Ivan
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Bironium
Bironium loksai

description: Bironium loksai Löbl Bironium loksai Löbl, 1989: 368, Figs 1 -3. Material examined. Additional specimens not found in the new collections. Distribution. Papua New Guinea. Comments. The species was based on four specimens from Wau, Morobe Prov., Papua New Guinea. The followings characters are here newly given: elytra with basal striae entire, joined to lateral striae; male protarsomere Iabout as wide as half of protibial apex, nearly as long as protarsomeres II and III combined; protarsomeres III lacking prominent ventral lobes, with long ventral setae slightly widened apically. The latter characters state is diagnostic.
description: Published as part of Löbl, Ivan, 2021, A review of the Bironium Csiki, 1909 (Coleoptera: Staphylinidae: Scaphidiinae) of New Guinea and the Moluccas, pp. 227-248 in Acta Musei Moraviae 106 (2) on page 236, DOI: 10.5281/zenodo.5706173
description: {"references": ["LOBL I. 1989: Sur les Bironium (Coleoptera, Scaphidiidae) de la Nouvelle-GuinOe. Mitteilungen der Schweizerischen entomologischen Gesellschaft 62: 367 \u2013 374."]}