cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Complete chloroplast genome sequencing of Caralluma quadrangula and comparative analysis of the Asclepiadoideae subfamily (Apocynaceae)
Creators: name: Abba, Abidina
name: Alzahrani, Dhafer A.
name: Yaradua, Samaila S.
name: Albokhari, Enas J.
Publisher: name: Journal of Applied Botany and Food Quality
Year: 2021

description: Caralluma quadrangula is an herbaceous plant distributed in Saudi Arabia, India, Africa, and the Canary Islands. To assess the phylogenetic and evolutionary relationships among the Asclepiadoideae subfamily in the Apocynaceae family, we carried out a compara-tive chloroplast (cp) genome analysis of four species. The size of the C. quadrangula chloroplast genome is 161,456 bp, while the large single-copy (LSC) is 85,992 bp, the small single-copy (SSC) is 13,380 bp, and the two inverted repeats (IRs) are 31,042 bp each. The genome has a total of 129 genes, among which 19 are located at the inverted repeat region, 85 are protein coding genes, 36 are tRNA genes, and eight are rRNA genes. Visualization of single-copy and inverted repeat borders showed that expansion and contraction have occurred in the cp genomes of the compared species of Ascle-piadoideae. The genome comparative analysis shows that the coding regions are more highly conserved than the non-coding region; thus, the variable hotspot can serve as a barcode for species in the subfamily. Phylogenetic analysis conducted based on cp sequences identified Stapelia as sister to Caralluma, in agreement with previous studies. The current study may facilitate the development of molecular markers to ease the identifi cation and authentication of members of the genus Caralluma in the Apocynaceae.
description: Journal of Applied Botany and Food Quality, Vol. 94 (2021): Journal of Applied Botany and Food Quality
title: LISLET_LEBOISCARRE 1
Creators: name: DESCHAMPS M.
name: HERZLINGER G.
name: PERROTTE J.
name: VARANDA A
name: Herisson, David
name: AnTET - ArScAn UMR 7041
Publisher: name: Archeovision
Year: 2022
Subjects: subject: biface

description: Les sondages préalables à la construction d’une éolienne ont permis la découverte puis la fouille d’un gisement du Paléolithique moyen à Lislet (Aisne). La séquence stratigraphique de Lislet est composée de sédiments loessiques reposant sur le substrat crayeux. Tous les éléments disponibles permettent de déterminer que son âge est eemien-weichselien. À la base se trouve un horizon d’illuviation attribué à l’Eemien. Les sédiments sus-jacents sont corrélables au Pléniglaciaire du Weichselien. L’horizon orangé visible dans l’ensemble des coupes est corrélé au Complexe de Saint-Acheul daté du Pléniglaciaire moyen (stade isotopique 3 : 59 – 33 ka). Une date OSL effectuée sur des sédiments sus-jacents à ce sol orangé a donné 34.9 ± 2.3 ka. Le niveau archéologique est contenu dans ce paléosol de rang interstadiaire et se place dans un laps de temps compris entre la fin du Pléniglaciaire inférieur et la fin du Pléniglaciaire moyen. L’industrie lithique (352 artefacts) est orientée vers la production d’éclats (débitages Levallois, unipolaire, bipolaire et polyédrique) mais la présence d’éclats de façonnage de biface témoigne du transit de ce type de pièces sur le site. Un biface subtriangulaire a été retrouvé hors contexte, mais son association avec l’industrie est très probable. Une attribution culturelle au Moustérien de tradition acheuléenne est proposée.
description: 1 fichier 3D (ply)
10C Survey of Radio Sources at 15.7 GHz: I - Observing, mapping and source extraction
Creators: name: Franzen, Thomas M. O.
name: Davies, Matthew L.
name: Waldram, Elizabeth M.
name: Grainge, Keith J. B.
name: Hobson, Michael P.
name: Hurley-Walker, Natasha
name: Lasenby, Anthony
name: Olamaie, Malak
name: Pooley, Guy G.
name: Rodriguez-Gonzalvez, Carmen
name: Saunders, Richard D. E.
name: Scaife, Anna M. M.
name: Schammel, Michel P.
name: Scott, Paul F.
name: Shimwell, Timothy W.
name: Titterington, David J.
name: Zwart, Jonathan T. L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have observed an area of approximatley 27 deg^2 to an rms noise level of less than 0.2 mJy at 15.7 GHz, using the Arcminute Microkelvin Imager Large Array. These observations constitute the most sensitive radio-source survey of any extent (greater than approximately 0.2 deg^2) above 1.4 GHz. This paper presents the techniques employed for observing, mapping and source extraction. We have used a systematic procedure for extracting information and producing source catalogues, from maps with varying noise and uv-coverage. We have performed simulations to test our mapping and source-extraction procedures, and developed methods for identifying extended, overlapping and spurious sources in noisy images. In an accompanying paper, AMI Consortium: Davies et al. 2010, the first results from the 10C survey, including the deep 15.7-GHz source count, are presented.
description: 9 pages, 11 figures, 4 tables
A good coming and a bad coming : the dual symbolic roles of mice in ancient Egyptian representations
Creators: name: Cessna, Leesha Michelle
Publisher: name: University of British Columbia
Year: 2017

description: This thesis examines the symbolic role played by textual, 2- and 3-dimensional representations of mice in Ancient Egypt from the Old Kingdom to the New Kingdom. Many of these attestations are found in funerary contexts and performed a medico-magical role. By building on an interpretive framework established by Warren Dawson in the 1920s, this paper demonstrates that the mouse had two opposing yet complimentary roles in Egyptian medical and religious practice. On one hand, the mouse’s powerful fertility was life giving, but on the other, its fertility could turn to the propagation of disease. Certain conventions of depiction and verbal description ensured that the mouse was controlled and prevented from expressing its negative qualities. Furthermore, the power of the mouse was subordinated to both the Nile and the sun god. These symbolic roles are reflective of much later medical interpretations of mice that prevailed from the Greco-Roman period into the early modern era. Thus, this study expands on Dawson’s work to demonstrate the historical origins of later medical practices. The study concludes with an examination of mouse representations in the broader context of Egyptian mythology and cosmology. It is evident that the duality expressed by the mouse is a common element of Egyptian invention as is the convention of controlling a dangerous force by verbal cues and terminology. Lastly, these mouse objects are indicative of the Ancient Egyptian’s familiarity with the physical world and the role of disease vectors and water in the spread of disease.
The Palomar Transient Factory Orion Project: Eclipsing Binaries and Young Stellar Objects
Creators: name: van Eyken, Julian C.
name: Ciardi, David R.
name: Rebull, Luisa M.
name: Stauffer, John R.
name: Akeson, Rachel L.
name: Beichman, Charles A.
name: Boden, Andrew F.
name: von Braun, Kaspar
name: Gelino, Dawn M.
name: Hoard, D. W.
name: Howell, Steve B.
name: Kane, Stephen R.
name: Plavchan, Peter
name: Ramírez, Solange V.
name: Bloom, Joshua S.
name: Cenko, S. Bradley
name: Kasliwal, Mansi M.
name: Kulkarni, Shrinivas R.
name: Law, Nicholas M.
name: Nugent, Peter E.
name: Ofek, Eran O.
name: Poznanski, Dovi
name: Quimby, Robert M.
name: Grillmair, Carl J.
name: Laher, Russ
name: Levitan, David
name: Mattingly, Sean
name: Surace, Jason A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Palomar Transient Factory (PTF) Orion project is an experiment within the broader PTF survey, a systematic automated exploration of the sky for optical transients. Taking advantage of the wide field of view available using the PTF camera at the Palomar 48" telescope, 40 nights were dedicated in December 2009-January 2010 to perform continuous high-cadence differential photometry on a single field containing the young (7-10Myr) 25 Ori association. The primary motivation for the project is to search for planets around young stars in this region. The unique data set also provides for much ancillary science. In this first paper we describe the survey and data reduction pipeline, and present initial results from an inspection of the most clearly varying stars relating to two of the ancillary science objectives: detection of eclipsing binaries and young stellar objects. We find 82 new eclipsing binary systems, 9 of which we are candidate 25 Ori- or Orion OB1a-association members. Of these, 2 are potential young W UMa type systems. We report on the possible low-mass (M-dwarf primary) eclipsing systems in the sample, which include 6 of the candidate young systems. 45 of the binary systems are close (mainly contact) systems; one shows an orbital period among the shortest known for W UMa binaries, at 0.2156509 \pm 0.0000071d, with flat-bottomed primary eclipses, and a derived distance consistent with membership in the general Orion association. One of the candidate young systems presents an unusual light curve, perhaps representing a semi-detached binary system with an inflated low-mass primary or a star with a warped disk, and may represent an additional young Orion member. Finally, we identify 14 probable new classical T-Tauri stars in our data, along with one previously known (CVSO 35) and one previously reported as a candidate weak-line T-Tauri star (SDSS J052700.12+010136.8).
description: 66 pages, 27 figures, accepted to Astronomical Journal. Minor typographical corrections and update to author affiliations
NFDI4Chem: the federated repositories
Creators: name: Bonatto Minella, Christian
name: Bach, Felix
name: Soltau, Kerstin
Publisher: name: Zenodo
Year: 2023

description: Within the framework of the German NFDI initiative and in particular the NFDI4Chem consortium, Task 3 (Repositories) aims to establish a federation of repositories for the collection, storage, processing, analysis, publication and re-use of research data as part of its infrastructure. The federation will be realised through the implementation of metadata and application programming interface (API) standards as well as vocabularies and ontologies addressed within the consortium. In order to identify those repositories that could form the nucleus of the envisaged virtual federation, the TA3 team developed a list of selection criteria. A number of relevant repositories were identified. Although some of them do not yet meet all the criteria required for integration into the NFDI4Chem service platform, they already play an important role in the chemistry research community and have committed to work towards the standards set by the consortium. Task Area 3 will support other databases and data repositories on interoperability issues and encourage them to participate in the development of NFDI4Chem standards and interfaces. With the aim of both identifying gaps in coverage in terms of data types or disciplines and addressing these through adaptation or, where necessary, new development, the TA3 team carried out a gap analysis of existing relevant repositories through individual interviews with repository leaders. The interview consisted of a series of questions ranging from general information to metadata standards and ontology, data content, technical information about the Authorisation and Authentication Infrastructure (AAI), API, services and functionality, operating environment, software architecture and workflows. The interviews were used to determine the current maturity and operational readiness of the selected repositories and to derive appropriate recommendations to address missing requirements. Future activities will focus on community needs to avoid the development of undesired functionalities. The poster presented at IDW 2023 will highlight the main characteristics and features of the repositories relevant to the chemistry community that have been selected to implement the NFDI4Chem federation.
Study of the K0(L) --> pi0 pi0 nu nu-bar decay
Creators: name: E391a Collaboration
name: Ogata, R.
name: Suzuki, S.
name: Ahn, J. K.
name: Akune, Y.
name: Baranov, V.
name: Chen, K. F.
name: Comfort, J.
name: Doroshenko, M.
name: Fujioka, Y.
name: Hsiung, Y. B.
name: Inagaki, T.
name: Ishibashi, S.
name: Ishihara, N.
name: Ishii, H.
name: Iwai, E.
name: Iwata, T.
name: Kato, I.
name: Kobayashi, S.
name: Komatsu, S.
name: Komatsubara, T. K.
name: Kurilin, A. S.
name: Kuzmin, E.
name: Lednev, A.
name: Lee, H. S.
name: Lee, S. Y.
name: Lim, G. Y.
name: Ma, J.
name: Matsumura, T.
name: Moisseenko, A.
name: Morii, H.
name: Morimoto, T.
name: Nakajima, Y.
name: Nakano, T.
name: Nanjo, H.
name: Nishi, N.
name: Nix, J.
name: Nomura, T.
name: Nomachi, M.
name: Okuno, H.
name: Omata, K.
name: Perdue, G. N.
name: Perov, S.
name: Podolsky, S.
name: Porokhovoy, S.
name: Sakashita, K.
name: Sasaki, T.
name: Sasao, N.
name: Sato, H.
name: Sato, T.
name: Sekimoto, M.
name: Shimogawa, T.
name: Shinkawa, T.
name: Stepanenko, Y.
name: Sugaya, Y.
name: Sugiyama, A.
name: Sumida, T.
name: Tajima, Y.
name: Takita, S.
name: Tsamalaidze, Z.
name: Tsukamoto, T.
name: Tung, Y. C.
name: Wah, Y. W.
name: Watanabe, H.
name: Wu, M. L.
name: Yamaga, M.
name: Yamanaka, T.
name: Yoshida, H. Y.
name: Yoshimura, Y.
name: Zheng, Y.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The rare decay K0(L) --> pi0 pi0 nu nu-bar was studied with the E391a detector at the KEK 12-GeV proton synchrotron. Based on 9.4 x 10^9 K0L decays, an upper limit of 8.1 x 10^{-7} was obtained for the branching fraction at 90% confidence level. We also set a limit on the K0(L) --> pi0 pi0 X (X --> invisible particles) process; the limit on the branching fraction varied from 7.0 x 10^{-7} to 4.0 x 10^{-5} for the mass of X ranging from 50 MeV/c^2 to 200 MeV/c^2.
description: 5 pages, 5 figures
Confines históricos del acceso abierto latinoamericano
Creators: name: Salatino, Maximiliano
name: Banzato, Guillermo
Publisher: name: Zenodo
Year: 2020
Subjects: Acceso abierto
Revistas científicas
Vías del acceso abierto
Comunicación científica

description: La expansión del acceso abierto en América Latina ha sido posible debido al activismo de los investigadores e intelectuales que lucharon por hacer visible los avances científicos producidos en nuestros países. Esta labor ha sido apoyada por organizaciones como el Centro Latinoamericano y del Caribe de Información en Ciencias de la Salud (BIREME), el Consejo Latinoamericano de Ciencias Sociales (CLACSO), la Universidad Nacional Autónoma de México (UNAM), la Universidad Autónoma del Estado de México (UAEM), especialistas académicos (incluyendo a Hebe Vessuri, Lea Velho, Ana María Cetto, Dominique Babini, Saray Córdoba), y el desarrollo de la primeras bases de datos regionales de revistas (Latindex, SciELO y RedALyC en manos de pioneros como Octavio Alonso Gamboa, Abel Packer y Eduardo Aguado López). Y, principalmente, por la labor de agentes y universidades nacionales que financiaron con su trabajo y recursos económicos la producción de conocimiento científico latinoamericano que permitió su circulación libre y gratuita. En este contexto, nos preguntamos ¿Cuáles fueron las especificidades del acceso abierto desde América Latina? ¿Cuáles fueron sus condiciones de posibilidad? ¿podemos pensar en un acceso abierto latinoamericano antes del acceso abierto internacional en inglés? ¿es posible considerar la circulación de revistas en papel en su rol de intercambios interbibliotecarios como antecedentes de un genuino acceso abierto con otros formatos? ¿Qué impacto tiene la dimensión lingüística en la implementación del acceso abierto? En este trabajo nos proponemos avanzar en la identificación histórica de itinerarios que marcaron el desarrollo del acceso abierto en Latinoamérica y, al mismo tiempo, latinoamericanizar las discusiones acerca del acceso abierto. En un primer momento, nos situaremos en aquellos pioneros proyectos e indagaciones que permitieron la circulación libre de conocimiento en la región. Luego analizaremos la década de 1990, en la que se fundaron los grandes portales regionales de revistas en acceso abierto y se consolidó interinstitucionalmente el acceso abierto. Por último, nos referiremos a los diversos itinerarios recientes del acceso abierto, el fortalecimiento de la vía verde y sus desafíos frente a la internacionalización de la mercantilización del conocimiento científico.
description: Este capítulo será publicado en el libro ""Conocimiento Abierto en América Latina: trayectoria y desafíos" producido por el GT CLACSO "Conocimiento Abierto como Bien Común". Una coedición CLACSO - Universidad Autónoma del Estado de México Editoras: Arianna Becerril García (UAEM) Saray Córdoba (UCR)
Multi-scale initial conditions for cosmological simulations
Creators: name: Hahn, Oliver
name: Abel, Tom
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We discuss a new algorithm to generate multi-scale initial conditions with multiple levels of refinements for cosmological "zoom-in" simulations. The method uses an adaptive convolution of Gaussian white noise with a real space transfer function kernel together with an adaptive multi-grid Poisson solver to generate displacements and velocities following first (1LPT) or second order Lagrangian perturbation theory (2LPT). The new algorithm achieves RMS relative errors of order 10^(-4) for displacements and velocities in the refinement region and thus improves in terms of errors by about two orders of magnitude over previous approaches. In addition, errors are localized at coarse-fine boundaries and do not suffer from Fourier-space induced interference ringing. An optional hybrid multi-grid and Fast Fourier Transform (FFT) based scheme is introduced which has identical Fourier space behaviour as traditional approaches. Using a suite of re-simulations of a galaxy cluster halo our real space based approach is found to reproduce correlation functions, density profiles, key halo properties and subhalo abundances with per cent level accuracy. Finally, we generalize our approach for two-component baryon and dark-matter simulations and demonstrate that the power spectrum evolution is in excellent agreement with linear perturbation theory. For initial baryon density fields, it is suggested to use the local Lagrangian approximation in order to generate a density field for mesh based codes that is consistent with Lagrangian perturbation theory instead of the current practice of using the Eulerian linearly scaled densities.
description: 22 pages, 24 figures. MNRAS in press. Updated affiliations
Interaction Analysis in Smart Work Environments through Fuzzy Temporal Logic
Creators: name: IJsselmuiden, Joris
Publisher: name: Karlsruhe
Year: 2014
Subjects: Interaction analysis
fuzzy temporal logic

description: Interaction analysis is defined as the generation of situation descriptions from machine perception. World models created through machine perception are used by a reasoning engine based on fuzzy metric temporal logic and situation graph trees, with optional parameter learning and clustering as preprocessing, to deduce knowledge about the observed scene. The system is evaluated in a case study on automatic behavior report generation for staff training purposes in crisis response control rooms.
Experimentelle Grundlagenuntersuchungen zum Katalysatorheizbetrieb mit strahlgeführter Benzin-Direkteinspritzung und Einspritzdrücken bis 800 bar
Creators: name: Schumann, Florian
Publisher: name: Karlsruhe
Year: 2014
Subjects: Verbrennungsmotor
Benzin-Direkteinspritzung
Katalysatorheizbetrieb
Einspritzdruck
Emissionen

description: In der vorliegenden Schrift wird über experimentelle Untersuchungen zum Einfluss von Einspritzdrücken bis 800 bar auf den Katalysatorheizbetrieb mit strahlgeführter Benzin-Direkteinspritzung berichtet. Im Fokus der Arbeit stehen die innermotorische Absenkung der Abgasemissionen, insbesondere der Partikelemissionen, und die Verbesserung der Verbrennungsstabilität bei gleichzeitiger Maximierung des Abgasenthalpiestroms.
Personalizing haptics : from individuals’ sense-making schemas to end-user haptic tools
Creators: name: Seifi, Hasti
Publisher: name: University of British Columbia
Year: 2017

description: Synthetic haptic sensations will soon proliferate throughout many aspects of our lives, well beyond the simple buzz we get from our mobile devices. This view is widely held, as evidenced by the growing list of use cases and industry's increasing investment in haptics. However, we argue that taking haptics to the crowds will require haptic design practices to go beyond a one-size-fits-all approach, common in the field, to satisfy users' diverse perceptual, functional, and hedonic needs and preferences reported in the literature. In this thesis, we tackle end-user personalization to leverage utility and aesthetics of haptic signals for individuals. Specifically, we develop effective haptic personalization mechanisms, grounded in our synthesis of users' sense-making schemas for haptics. First, we propose a design space and three distinct mechanisms for personalization tools: choosing, tuning, and chaining. Then, we develop the first two mechanisms into: 1) an efficient interface for choosing from a large vibration library, and 2) three emotion controls for tuning vibrations. In developing these, we devise five haptic facets that capture users' cognitive schemas for haptic stimuli, and derive their semantic dimensions and between-facet linkages by collecting and analyzing users' annotations for a 120-item vibration library. Our studies verify utility of the facets as a theoretical model for personalization tools. In collecting users' perception, we note a lack of scalable haptic evaluation methodologies and develop two methodologies for large-scale in-lab evaluation and online crowdsourcing of haptics. Our studies focus on vibrotactile sensations as the most mature and accessible haptic technology but our contributions extend beyond vibrations and inform other categories of haptics.
Vlasov equation and collisionless hydrodynamics adapted to curved spacetime
Creators: name: Dodin, I. Y.
name: Fisch, N. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The modification of the Vlasov equation, in its standard form describing a charged particle distribution in the six-dimensional phase space, is derived explicitly within a formal Hamiltonian approach for arbitrarily curved spacetime. The equation accounts simultaneously for the Lorentz force and the effects of general relativity, with the latter appearing as the gravity force and an additional force due to the extrinsic curvature of spatial hypersurfaces. For an arbitrary spatial metric, the equations of collisionless hydrodynamics are also obtained in the usual three-vector form.
An Algorithmic View on Sensor Networks - Surveillance, Localization, and Communication
Creators: name: Schieferdecker, Dennis
Publisher: name: Karlsruhe
Year: 2014

description: This thesis focuses on scalability issues of diverse problems on sensor networks and presents efficient solutions. First, we show that it is NP-hard to find optimal activation schedules for monitoring areas and provide an EPTAS algorithm. Second, we present a distributed algorithm for the detection of network boundaries that only requires local connectivity information. Finally, we introduce an FPTAS for computing shortest paths and describe an algorithm for determining alternative routes.
No Deal: Investigating the Influence of Restricted Access to Elsevier Journals on German Researchers' Publishing and Citing Behaviours
Creators: name: Fraser, Nicholas
name: Hobert, Anne
name: Jahn, Najko
name: Mayr, Philipp
name: Peters, Isabella
Publisher: name: Zenodo
Year: 2021
Subjects: Projekt DEAL
Elsevier
Open Access
Bibliometrics
Citations

description: In 2014 the Alliance of Science Organisations (Allianz der Wissenschaftsorganisationen), a union of the majority of German research organisations, established Projekt DEAL, a national-level project to negotiate licensing agreements with large scientific publishers. Negotiations between the DEAL consortium and Elsevier, one of the world's largest scientific publishers, began in 2016, and broke down without a successful agreement in 2018; in this time, around 200 German research institutions cancelled their existing license agreements with Elsevier, leading to Elsevier shutting off access to their journal portfolios at those institutions from July 2018 onwards. We aimed to assess the effect of Elsevier access restrictions on the publishing and citing behaviour of researchers from a bibliometric perspective, using a dataset of ~410,000 articles published by researchers from those affected institutions. Our early results show Elsevier’s market share of articles published by researchers from DEAL institutions has fallen over the past 5 years, from a peak of 25.3% in 2015 to 20.6% in 2020; the largest year-on-year loss in market share (>1%) was reported in 2020. Despite a reduction in the proportion of articles published in Elsevier journals, researchers at DEAL institutions have continued to cite Elsevier articles following access restrictions in similar proportions to before, suggesting that researchers use other methods to access and read articles (e.g. interlibrary loans, sharing between co-authors, or “shadow libraries” such as Sci-Hub). We further investigated these behaviours with respect to the timing of contract expirations, research disciplines, collaboration patterns and article OA status. Overall, we find some evidence of reduced willingness amongst researchers at DEAL institutions to publish in Elsevier journals, but no evidence suggesting that researchers are negatively affected in their ability to cite articles following restricted access to those journals.
Optimal Strategies in Infinite-state Stochastic Reachability Games
Creators: name: Brožek, Václav
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences
subject: G.3

description: We consider perfect-information reachability stochastic games for 2 players on infinite graphs. We identify a subclass of such games, and prove two interesting properties of it: first, Player Max always has optimal strategies in games from this subclass, and second, these games are strongly determined. The subclass is defined by the property that the set of all values can only have one accumulation point -- 0. Our results nicely mirror recent results for finitely-branching games, where, on the contrary, Player Min always has optimal strategies. However, our proof methods are substantially different, because the roles of the players are not symmetric. We also do not restrict the branching of the games. Finally, we apply our results in the context of recently studied One-Counter stochastic games.
Friedmann-free limits on spatial curvature
Creators: name: Rich, James
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss limits on cosmological spatial curvature that can be derived without imposing the geometry-density relation required by the Friedmann equation. In particular, studies of the expansion history using stellar evolution in passive galaxies imply a curvature radius greater than the Hubble distance.
description: 2 pages, zero figures, accepted by A&A
Electronic Structure of KFe$_2$Se$_2$ from First Principles Calculations
Creators: name: Cao, Chao
name: Dai, Jianhui
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Electronic structure and magnetic properties for iron-selenide KFe$_2$Se$_2$ are studied by first-principles calculations. The ground state is stripe-like antiferromagnetic with calculated 2.26 $μ_B$ magnetic moment on Fe atoms; and the $J_1$, $J_2$ coupling strengths are calculated to be 0.038 eV and 0.029 eV. The states around $E_F$ are dominated by the Fe-3d orbitals which hybridize noticeably to the Se-4p orbitals. While the band structure of KFe$_2$Se$_2$ is similar to a heavily electron-doped BaFe$_2$As$_2$ or FeSe system, the Fermi surface of KFe$_2$Se$_2$ is much closer to \fs11 system since the electron sheets around $M$ is symmetric with respect to $x$-$y$ exchange. These features, as well as the absence of Fermi surface nesting, suggest that the parental KFe$_2$Se$_2$ could be regarded as an electron over-doped 11 system with possible local moment magnetism.
description: accepted by Chinese Physics Letter, to appear as Chinese Physics Letter, Vol 28, page 057402 (2011)
Die direkte Oxidation von Methan zu Formaldehyd an fluoriertem SiO2: Einfluss der Reaktionsbedingungen und erste Beschreibung der Reaktionskinetik
Creators: name: Renz, Stephanie
Publisher: name: Karlsruhe
Year: 2014

description: Die direkte Oxidation von Methan zu Formaldehyd stellt eines der Verfahren dar, mit denen gasförmiges Methan noch vor Ort in ein einfacher zu transportierendes Wertprodukt umgewandelt werden könnte. Ziel dieser Arbeit war es erstmaligen den Einfluss der Reaktionsbedinungen auf die Formaldehydausbeute für einen fluorierten SiO2-Katalysatorzu bestimmen. Basierend auf diesen Messungen wurde ein geeignetes Reaktionsnetz abgeleitet und für dieses ein erstes Modell der Reaktionskinetik entwickelt.
Thermodynamics of Lovelock-Lifshitz Black Branes
Creators: name: Dehghani, M. H.
name: Mann, R. B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the thermodynamics of Lovelock-Lifshitz black branes. We begin by introducing the finite action of third order Lovelock gravity in the presence of a massive vector field for a flat boundary, and use it to compute the energy density of these black branes. Using the field equations, we find a conserved quantity along the $r$ coordinate that relates the metric parameters at the horizon and at infinity. Remarkably, though the subleading large-$r$ behavior of Lovelock-Lifshitz black branes differs substantively from their Einsteinian Lifshitz counterparts, we find that the relationship between the energy density, temperature, and entropy density is unchanged from Einsteinian gravity. Using the first law of thermodynamics to obtain the relationship between entropy and temperature, we find that it too is the same as the Einsteinian case, apart from a constant of integration that depends on the Lovelock coefficients.
description: 16 pages, no figure, typos fixed
An elementary exposition of the Efimov Effect
Creators: name: Bhaduri, Rajat K.
name: Chatterjee, Arindam
name: van Zyl, Brandon P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Two particles that are just shy of binding may develop an infinite number of shallow bound states when a third particle is added. This counter intuitive quantum mechanical result was first predicted by V. Efimov for identical bosons interacting with a short-range pair-wise potential. The so-called Efimov effect persists even for non-identical particles, provided at least two of the three bonds are almost bound. The Efimov effect has recently been verified experimentally using ultra-cold atoms. In this article, we explain the origin of this effect using only elementary quantum mechanics, and summarize the experimental evidence for the Efimov effect. A new, simple derivation for the number of Efimov states is given in the Appendix.
description: 4 figures. Version to appear in American Journal of Physics. Minor typos fixed
Prozessentwicklung für die Automatisierung der Herstellung und Anwendung von hochdichten Peptidmicroarrays
Creators: name: Schillo, Sebastian Mathias
Publisher: name: Karlsruhe
Year: 2014
Subjects: Peptidmicroarray
Automatisierung

description: Peptidmicroarrays, bestehend aus einer großen Vielfalt unterschiedlicher Peptide auf einer festen Oberfläche, können helfen, eine Vielzahl immunologischer und biochemischer Fragestellungen zu beantworten. In der vorliegenden Arbeit wurden drei Prozesse entwickelt, die den Weg von händischer Arbeit in die Richtung automatisierter Prozesse mit einstellbareren Prozessparametern ebnen.
Natural human mobility patterns and spatial spread of infectious diseases
Creators: name: Belik, Vitaly
name: Geisel, Theo
name: Brockmann, Dirk
Publisher: name: arXiv
Year: 2011
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We investigate a model for spatial epidemics explicitly taking into account bi-directional movements between base and destination locations on individual mobility networks. We provide a systematic analysis of generic dynamical features of the model on regular and complex metapopulation network topologies and show that significant dynamical differences exist to ordinary reaction-diffusion and effective force of infection models. On a lattice we calculate an expression for the velocity of the propagating epidemic front and find that in contrast to the diffusive systems, our model predicts a saturation of the velocity with increasing traveling rate. Furthermore, we show that a fully stochastic system exhibits a novel threshold for attack ratio of an outbreak absent in diffusion and force of infection models. These insights not only capture natural features of human mobility relevant for the geographical epidemic spread, they may serve as a starting point for modeling important dynamical processes in human and animal epidemiology, population ecology, biology and evolution.
Autonomic Performance-Aware Resource Management in Dynamic IT Service Infrastructures
Creators: name: Huber, Nikolaus Matthias
Publisher: name: Karlsruhe
Year: 2014

description: Model-based techniques are a powerful approach to engineering autonomic and self-adaptive systems. This thesis presents a model-based approach for proactive and autonomic performance-aware resource management in dynamic IT infrastructures. Core of the approach is an architecture-level modeling language to describe performance and resource management related aspects in such environments. With this approach, it is possible to autonomically find suitable system configurations at the model level.
Bewegungs- und Verschleißverhalten von Hartmetalllamellen bei der Betonbearbeitung
Creators: name: Hentschel, Sebastian
Publisher: name: Karlsruhe
Year: 2014
Subjects: Hartmetalllamelle
Schlaglamelle

description: Die vorliegende Forschungsarbeit beinhaltet eine Analyse zum Bewegungs- und Verschleißverhalten von Hartmetalllamellen bei der Betonbearbeitung. Experimentelle und numerische Untersuchungen dienen in dieser Arbeit zur Modell-Verifizierung sowie zur Definition der Verschleißcharakteristika.
Horizontal visibility graphs transformed from fractional Brownian motions: Topological properties versus Hurst index
Creators: name: Xie, Wen-Jie
name: Zhou, Wei-Xing
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Nonlinear time series analysis aims at understanding the dynamics of stochastic or chaotic processes. In recent years, quite a few methods have been proposed to transform a single time series to a complex network so that the dynamics of the process can be understood by investigating the topological properties of the network. We study the topological properties of horizontal visibility graphs constructed from fractional Brownian motions with different Hurst index $H\in(0,1)$. Special attention has been paid to the impact of Hurst index on the topological properties. It is found that the clustering coefficient $C$ decreases when $H$ increases. We also found that the mean length $L$ of the shortest paths increases exponentially with $H$ for fixed length $N$ of the original time series. In addition, $L$ increases linearly with respect to $N$ when $H$ is close to 1 and in a logarithmic form when $H$ is close to 0. Although the occurrence of different motifs changes with $H$, the motif rank pattern remains unchanged for different $H$. Adopting the node-covering box-counting method, the horizontal visibility graphs are found to be fractals and the fractal dimension $d_B$ decreases with $H$. Furthermore, the Pearson coefficients of the networks are positive and the degree-degree correlations increase with the degree, which indicate that the horizontal visibility graphs are assortative. With the increase of $H$, the Pearson coefficient decreases first and then increases, in which the turning point is around $H=0.6$. The presence of both fractality and assortativity in the horizontal visibility graphs converted from fractional Brownian motions is different from many cases where fractal networks are usually disassortative.
description: 12 pages, 8 figures
title: Κατασκευή γυναικείου ενδύματος με την τεχνολογία της τρισδιάστατης εκτύπωσης
title: Making of women’ s clothing with the technology of 3D printing
Creators: name: Αγγελη Αθηνα
Publisher: name: Technical University of Crete
Year: 2021

description: Η παρούσα διπλωματική εργασία πραγματεύεται τη διαδικασία της τρισδιάστατης εκτύπωσης από τη σύλληψη της ιδέας και τη δημιουργία ενός ψηφιακού μοντέλου μέχρι την παραγωγή ενός γυναικείου ενδύματος. Αναλυτικότερα, για το σχεδιασμό του γυναικείου τοπ χρησιμοποιήθηκε το λογισμικό CAD Autodesk Inventor και πραγματοποιήθηκε η εκτύπωση του με τη βοήθεια του τρισδιάστατου εκτυπωτή Creality CR-10S5 τεχνολογίας Fused Deposition Modeling (FDM).
Ο σκοπός αυτής της διπλωματικής, εκτός από το σχεδιασμό και την εκτύπωση του γυναικείου τοπ, είναι η εισαγωγή του αναγνώστη στις καινοτόμες τεχνολογίες προσθετικής κατασκευής και των υλικών που χρησιμοποιούνται στη βιομηχανία της μόδας.
Στο πρώτο κεφάλαιο, γίνεται μια εισαγωγική αναφορά στην τρισδιάστατη εκτύπωση, στην ιστορική εξέλιξη της και στις σημαντικότερες εφαρμογές της συγκεκριμένης τεχνολογίας στο χώρο της μόδας. Επίσης, παρουσιάζονται τα πλεονεκτήματα και τα μειονεκτήματα της τρισδιάστατης εκτύπωσης στο συγκεκριμένο τομέα.
Στο δεύτερο κεφάλαιο, περιγράφονται τα επιμέρους στάδια μετάβασης από τη σχεδίαση στην εκτύπωση. Επιπλέον, γίνεται η ανάλυση των τεχνολογιών και των υλικών της τρισδιάστατης εκτύπωσης και παρουσιάζεται συνοπτικά η σύγκριση τους.
Στο τρίτο κεφάλαιο, παρουσιάζονται όλα τα στάδια για τη δημιουργία του γυναικείου τοπ, από τη σχεδίαση του, την κατάλληλη προετοιμασία πριν την εκτύπωση μέχρι την τελική διαδικασία εκτύπωσης του.
Στο τέταρτο κεφάλαιο, αναλύονται όλες οι δοκιμαστικές εκτυπώσεις που πραγματοποιήθηκαν πριν την τελική εκτύπωση, οι αστοχίες που παρατηρήθηκαν καθώς επίσης και οι τρόποι αντιμετώπισης αυτών.
Στο πέμπτο κεφάλαιο, αναφέρονται συνοπτικά τα συμπεράσματα της παρούσας διπλωματικής εργασίας.
Towards the observation of phase locked Bloch oscillations in arrays of small Josephson junctions
Creators: name: Maibaum, Felix
name: Lotkhov, Sergey V.
name: Zorin, A. B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have designed an experiment and performed extensive simulations and preliminary measurements to identify a set of realistic circuit parameters that should allow the observation of constant-current steps at I=2ef in short arrays of small Josephson junctions under external AC drive of frequency f. Observation of these steps demonstrating phase lock of the Bloch oscillations with the external drive requires a high-impedance environment for the array, which is provided by on-chip resistors close to the junctions. We show that the width and shape of the steps crucially depend on the shape of the drive and the electron temperature in the resistors.
The effect of radiation pressure on emission line profiles and black hole mass determination in active galactic nuclei
Creators: name: Netzer, Hagai
name: Marziani, Paola
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a new analysis of the motion of broad line region (BLR) clouds in active galactic nuclei (AGNs) taking into account the combined influence of gravity and radiation pressure force. We calculate cloud orbits under a large range of conditions and include the effect of a changing column density as a function of location. The dependence of radiation pressure force on the level of ionization and the column density are accurately computed. The main results are: a. The mean cloud location r(BLR) and the line widths (FWHMs) are combined in such a way that the simple virial mass estimate, r{BLR} FWHM^2/G, gives a reasonable approximation to the black hole mass M even when radiation pressure force is important. The reason is that L/M rather than L is the main parameter affecting the planar cloud motion. b. Reproducing the observed mean radius, FWHM and intensity of H-beta and CIV 1549 requires at least two different populations of clouds. c. The cloud location is a function of both L^{1/2} and L/M. Given this we suggest a new approximation for r(BLR) which, when inserted into the BH mass equation, results in a new approximation for M. The new expression involves L^{1/2}, FWHM and two constants that are obtained from a comparison with available M-sigma mass estimates. It deviates only slightly from the old mass estimate at all luminosities. d. The quality of present black hole mass estimators depends, critically, on the way the present M-sigma AGN sample (16 objects) represents the AGN population, in particular the distribution of Eddington ratios.
description: Accepted for publication in ApJ, 11 pages, 9 figures
Tunable charge donation and spin polarization of metal adsorbates on graphene using applied electric field
Creators: name: Parq, Jae-Hyeon
name: Yu, Jaejun
name: Kwon, Young-Kyun
name: Kim, Gunn
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Metal atoms on graphene, when ionized, can act as a point charge impurity to probe a charge response of graphene with the Dirac cone band structure. To understand the microscopic physics of the metal-atom-induced charge and spin polarization in graphene, we present scanning tunneling spectroscopy (STS) simulations based on density functional theory calculations. We find that a Cs atom on graphene are fully ionized with a significant band bending feature in the STS, whereas the charge and magnetic states of Ba and La atoms on graphene appear to be complicated due to orbital hybridization and Coulomb interaction. By applying an external electric field, we observe changes in charge donations and spin magnetic moments of the metal adsorbates on graphene.
description: 8 pages, 6 figures
Review of AdS/CFT Integrability, Chapter VI.1: Superconformal Symmetry
Creators: name: Beisert, Niklas
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 17B10, 81T13, 81T30, 81T60

description: Aspects of the D=4, N=4 superconformal symmetry relevant to the AdS/CFT duality and integrability are reviewed. These include the Lie superalgebra psu(2,2|4), its representations, conformal transformations and correlation functions in N=4 super Yang-Mills theory as well as an illustration of the AdS5xS5 superspace on which the dual string theory is formulated.
description: 16 pages, see also overview article arXiv:1012.3982, v2: references to other chapters updated, v3/v4: minor corrections and clarifications, accepted for publication in LMP
Deep learning for sequence modelling : applications in natural languages and distributed compressive sensing
Creators: name: Palangi, Hamid
Publisher: name: University of British Columbia
Year: 2017

description: The underlying data in many machine learning tasks have a sequential nature. For example, words generated by a language model depend on the previously generated words, behavior of a user in a social network evolves over different snapshots of the social graph over time, different speech frames in a speech recognition system depend on the previously generated frames, etc. The main question is, how can we leverage the sequential nature of data to extract better features for the target machine learning task? In an effort to address this question, this thesis presents three important applications of deep sequence modelling methods. The first application is sentence modelling for web search task where the question addressed is: How to create a vector representation for a natural language sentence, aimed at a specific task such as web search? We propose Long Short-Term Memory Deep Structured Semantic Model (LSTM-DSSM), a model for information retrieval on click-through data with significant performance gains compared to existing state of the art baselines. The proposed LSTM-DSSM model sequentially takes each word in a sentence, extracts its relevant information, and embeds it into a semantic vector. The second application involves distributed compressive sensing, where the main questions addressed are: (a) How to relax the joint sparsity constraint? (b) How to exploit the structural dependency of a group of sparse vectors to reconstruct them better from down-sampled measurements (structures besides sparsity)? (c) How to exploit available offline data during sparse reconstruction at the decoder? We present a deep learning approach to distributed compressive sensing and show that it addresses the above three questions and is almost as fast as greedy methods during reconstruction. The third application is related to speech recognition. The question addressed here is: How to build a recurrent acoustic model for the task of phoneme recognition? We present a Recurrent Deep Stacking Network (R-DSN) architecture for this task. Each module in the R-DSN is initialized with an Echo State Network (ESN), and then all connection weights within the module are fine tuned.
Manifestly gauge independent formulations of the Z2 invariants
Creators: name: Prodan, Emil
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We use a "monodromy" argument to derive new expressions for the ${\bm Z}_2$ invariants of topological insulators with time-reversal symmetry in 2 and 3 dimensions. The derivations and the final expressions do not require any gauge choice and the calculation of the invariants is based entirely on the projectors onto the occupied states. Explicit numerical tests for tight-binding models with strongly broken inversion symmetry are presented in 2 and 3-dimensions.