cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Direct Detection of the Close Companion of Polaris with the Hubble Space Telescope
Creators: name: Evans, Nancy Remage
name: Schaefer, Gail H.
name: Bond, Howard E.
name: Bono, Giuseppe
name: Karovska, Margarita
name: Nelan, Edmund
name: Sasselov, Dimitar
name: Mason, Brian D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Polaris, the nearest and brightest classical Cepheid, is a single-lined spectroscopic binary with an orbital period of 30 years. Using the High Resolution Channel of the Advanced Camera for Surveys onboard the Hubble Space Telescope (HST) at a wavelength of ~2255Å, we have directly detected the faint companion at a separation of 0\farcs17. A second HST observation 1.04 yr later confirms orbital motion in a retrograde direction. By combining our two measures with the spectroscopic orbit of Kamper and an analysis of the Hipparcos and FK5 proper motions by Wielen et al., we find a mass for Polaris Aa of 4.5^{+2.2}_{-1.4} M_\odot--the first purely dynamical mass determined for any Cepheid. For the faint companion Polaris Ab we find a dynamical mass of 1.26^{+0.14}_{-0.07} M_\odot, consistent with an inferred spectral type of F6 V and with the flux difference of 5.4 mag observed at 2255Å. The magnitude difference at the V band is estimated to be 7.2 mag. Continued HST observations will significantly reduce the mass errors, which are presently still too large to provide critical constraints on the roles of convective overshoot, mass loss, rotation, and opacities in the evolution of intermediate-mass stars. Our astrometry, combined with two centuries of archival measurements, also confirms that the well-known, more distant (18") visual companion, Polaris B, has a nearly common proper motion with that of the Aa,Ab pair. This is consistent with orbital motion in a long-period bound system. The ultraviolet brightness of Polaris B is in accordance with its known F3 V spectral type if it has the same distance as Polaris Aa,Ab.
description: 31 pages, 12 figures, 6 tables; accepted for publication in the Astronomical Journal
QCD sum rules for D and B mesons in nuclear matter
Creators: name: Hilger, T.
name: Thomas, R.
name: Kampfer, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: QCD sum rules for D and B mesons embedded in cold nuclear matter are evaluated. We quantify the mass splitting of D - D-bar and B - B-bar mesons as a function of the nuclear matter density; extrapolated to saturation density it is in the order of 60 and 130 MeV driven essentially by the condensates , and . The genuine chiral condensate , amplified by heavy-quark masses, enters the Borel transformed sum rules for the mass splitting beyond linear density dependence. Including strange quark condensates reveals a umerically smaller and opposite effect for the Ds - Ds-bar mass splitting.
description: 16 pages, 8 figures, to be published; a broader range of condensate values is discussed (v2)
Screenagers: Digitale Medien in der österreichischen Jugendarbeit
Creators: name: Anderle, Michaela
name: Pöyskö, Anu
Publisher: name: Medienimpulse
Year: 2016

description: Medienimpulse, Bd. 54 Nr. 2 (2016): 2/2016 - Internet und digitale Medien als sexualisierte Räume
Two-Loop QED Heavy-Flavor Contribution to Bhabha Scattering
Creators: name: Bonciani, R.
name: Ferroglia, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We briefly review the status of the calculation of next-to-next-to-leading order corrections to large angle Bhabha scattering in pure QED. In particular, we focus on the analytic calculation of the two-loop virtual corrections involving a heavy-flavor fermion loop, which was recently completed. We conclude by assessing the numerical impact of these corrections on the Bhabha scattering cross section at colliders operating at a center of mass energy of 1 GeV and at the future ILC.
description: 6 pages, 2 figures. Contribution to the Proceedings of the 9th DESY workshop on "Loops and Legs in Quantum Field Theory", Sondershausen, April 2008. References added
Medienbildung Jetzt! – Wahlprüfsteine zur bildungspolitischen Umsetzung von Medienbildung und Medienkompetenz
Creators: name: Specht, Matthias
name: Lange, Michael
Publisher: name: Medienimpulse
Year: 2016

description: Der Beitrag führt die aktuellen Wahlprüfsteine aus, welche den zum Berliner Abgeordnetenhaus antretenden Parteien zu Fragen der Umsetzung von Medienbildung und Medienkompetenz vorgelegt wurden.
description: Medienimpulse, Bd. 54 Nr. 2 (2016): 2/2016 - Internet und digitale Medien als sexualisierte Räume
Pornografisierung durch Sexualpädagogik?
Creators: name: Rothmüller, Barbara
name: Scheibelhofer, Paul
Publisher: name: Medienimpulse
Year: 2016

description: Der folgende Beitrag befasst sich mit dem widersprüchlichen Verhältnis zwischen Pornografie und Sexualpädagogik. Einerseits wächst in den letzten Jahrzehnten der Anspruch an eine zeitgemäße Sexualpädagogik, Kinder und Jugendliche vor negativen Auswirkungen von Pornografie zu schützen. Andererseits wurde Sexualpädagogik historisch und aktuell oft mit dem Vorwurf konfrontiert, selbst pornografisch zu sein und Schüler_innen dadurch Schaden zuzufügen. Dieses widersprüchliche Verhältnis darstellend, wird im Artikel für die Notwendigkeit eines differenzierten pädagogischen Zugangs zum Thema Pornografie plädiert.
description: Medienimpulse, Bd. 54 Nr. 2 (2016): 2/2016 - Internet und digitale Medien als sexualisierte Räume
Ectoedemia (Ectoedemia) erythrogenella
Creators: name: van Nieukerken, Erik
name: Laštůvka, Aleš
name: Laštůvka, Zdeněk
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Nepticulidae
Ectoedemia
Ectoedemia erythrogenella

description: Ectoedemia (Ectoedemia) erythrogenella (Joannis) Fig. 123 Biology. Hostplants: mainly evergreen Rubus species: mainly R. ulmifolius Schott. and R. sanctus Schreb. (sometimes regarded as synonyms). Larvae found from autumn throughout winter, September to April, again in July; adults in April to July. In the northern part of its range certainly univoltine, possibly with more generations in parts of the mediterranean. Figures Ι08–ΙΙ0. Ectoedemia (Ectoedemia) angulifasciella group, male genitalia. Ι08 E. spiraeae, Russia, SW Altai, Katun valley, slide RMNH.INS.15041 Ι09, ΙΙ0 E. spinosella, paratype of E. albiformae, Turkmenistan, 40 km E Kara Kala, slide EJvN 3922. Distribution. Here recorded new for Sardinia and Turkey. Earlier records from Greece and Tunisia based on leafmines are confirmed by reared adults. Material. Croatia: 1♀, Krk, Str. Krk-Vrbnik, 23.VII.1988, G. Baldizzone (GB). Greece: larvae, Fokis, Glifadha-Spilia, 7.XI.2008, Rubus ulmifolius, E.J. van Nieukerken (RMNH); leafmines, Lakonia, 4 km SW Yíthion, coastal plain, 15.II.1990, E.J. van Nieukerken (RMNH); 2♁, 1♀, Lakonia, Nomia, 7 km SW Monemvasia, 13.II.1990, e.l. 6–18.IV.1990, E.J. van Nieukerken (RMNH); leafmines, Messinía, Kardhamili, gorge with dense maquis, 18.II.1990, E.J. van Nieukerken, (RMNH); Italy, Sardinia: 1♁, Cagliari, Domusnovas, Sa Duchessa, 350 m, 28. VI.2004, at light, P. Triberti & G. Baldizzone (PT). Tunisia: 1♀, Ain Draham, 21.IV.1973, larvae on Rubus sp., e.l. V.1973, G. Deschka (AL); 1♁, 5 km E Tamera, leafmines Rubus sp., el 21–25.III.1986, O. Karsholt (ZMUC). Turkey: 1♁, Antalya, Olympos, ancient ruins near beach, 1.III.2005, leafmines on R. sanctus, e.l. 22.IV.2005, E.J. van Nieukerken (RMNH); 2♁, Antalya, Phaselis ruins, 3km NE Tekirova, 4.III.2005, leafmines on R. sanctus, e.l. 18.IV.2005, E.J. van Nieukerken (RMNH).
description: Published as part of van Nieukerken, Erik, Laštůvka, Aleš & Laštůvka, Zdeněk, 2010, Western Palaearctic Ectoedemia (Zimmermannia) Hering and Ectoedemia Busck s. str. (Lepidoptera: Nepticulidae): five new species and new data on distribution, hostplants and recognition, pp. 1-82 in ZooKeys 32 (32) on pages 64-65, DOI: 10.3897/zookeys.32.282, http://zenodo.org/record/576594
Autopornografisierung im Web 2.0 als massenkulturelle Praxis
Creators: name: Sengelin, Johannes
Publisher: name: Medienimpulse
Year: 2016

description: Ausgehend von den Entwicklungen seit den späten 1940er Jahren, die den Körper und den Sex in Bestandteile moderner Informations- und Konsummodelle transformiert haben, wird der aktuelle Wandel von medialen Praktiken am paradigmatischen Beispiel der Autopornografisierung geschildert. Die sich darauf beziehenden Debatten um Jugendgefährdung stellen in ihrer Verstrickung mit heteronormativen Werten Normalisierungsversuche dar, mediale und patriarchale Machtverhältnisse zu stabilisieren. Dagegen führt der Autor Paul B. Preciados Weiterentwicklung der Theorien über den Sex von Michel Foucault ins Feld, deren nüchterne aber kritische Analyse neue Spielräume für eine geschlechtersensible, medienpädagogische Auseinandersetzung eröffnen kann.
description: Medienimpulse, Bd. 54 Nr. 2 (2016): 2/2016 - Internet und digitale Medien als sexualisierte Räume
Editorial 2/2017: Digitale Grundbildung
Creators: name: Barberi, Alessandro
name: Berger, Christian
name: Himpsl-Gutermann, Klaus
Publisher: name: Medienimpulse
Year: 2017

description: Editorial 2/2017
description: Medienimpulse, Bd. 55 Nr. 2 (2017): 2/2017 - Digitale Grundbildung
Comics Intermedial
Creators: name: Winkler, Paul
Publisher: name: Medienimpulse
Year: 2013

description: Als ein fruchtbares Feld der Intermedialitätsforschung wird der Comic im vorliegenden Sammelband neu abgesteckt. Beiträge von insgesamt zwölf Autoren nähern sich der Forschungsthematik dabei anhand von Aspekten wie Kunst, Fotografie, Kino, Rundfunk, Merchandising, Computerspiele oder Internet. Mediale und disziplinäre Übergänge werden veranschaulicht und gleichzeitig ein eigenständiges "Forschungsfeld Comic" neu verhandelt.
description: Medienimpulse, Bd. 51 Nr. 3 (2013): 3/2013 - Visuelle Historiografien/Comics zwischen Reflexion und Konstruktion von Geschichte(n)
Rezension: Der Beweis des Jahrhunderts. Die faszinierende Geschichte des Mathematikers Grigori Perelman
Creators: name: Rogy, Raffaela
Publisher: name: Medienimpulse
Year: 2013

description: Medienimpulse, Bd. 51 Nr. 3 (2013): 3/2013 - Visuelle Historiografien/Comics zwischen Reflexion und Konstruktion von Geschichte(n)
Mode Confinement in Photonic Quasi-Crystal Point-Defect Cavities for Particle Accelerators
Creators: name: Di Gennaro, E.
name: Savo, S.
name: Andreone, A.
name: Galdi, V.
name: Castaldi, G.
name: Pierro, V
name: Masullo, M. R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this Letter, we present a study of the confinement properties of point-defect resonators in finite-size photonic-bandgap structures composed of aperiodic arrangements of dielectric rods, with special emphasis on their use for the design of cavities for particle accelerators. Specifically, for representative geometries, we study the properties of the fundamental mode (as a function of the filling fraction, structure size, and losses) via 2-D and 3-D full-wave numerical simulations, as well as microwave measurements at room temperature. Results indicate that, for reduced-size structures, aperiodic geometries exhibit superior confinement properties by comparison with periodic ones.
description: 4 pages, 4 figures, accepted for publication in Applied Physics Letters
Medienkompetenzvermittlung im Fachgegenstand Musikerziehung
Creators: name: Rankl, Martin
Publisher: name: Medienimpulse
Year: 2014

description: Dieser Artikel befasst sich mit der Integration von Medienbildung in den Musikunterricht und behandelt Aspekte inwieweit musikerzieherische Inhalte auch zur Medienbildung beitragen können. Darüber hinaus sollen exemplarisch einige Programme und Online-Tools vorgestellt werden, die in der praktischen Arbeit im Musikunterricht verwendet werden können.
description: Medienimpulse, Bd. 52 Nr. 3 (2014): 3/2014 - Medienproduktion im Alltag von Kindern und Jugendlichen
An Infinite Number of Static Soliton Solutions to the 5D Einstein-Maxwell Equations with a Dilaton Field
Creators: name: Azuma, Takahiro
name: Koikawa, Takao
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the 5D static Einstein-Maxwell equations with a dilaton field. We construct an infinte number of solutions by using a soliton technique. We study the rod structure of 2-soliton solution and show the 5D dilatonic black ring and black hole solutions are included.
description: v3:25pages, some comments added in sections 1,3,4, one figure and references added
Systematic Effective Field Theory Investigation of Spiral Phases in Hole-Doped Antiferromagnets on the Honeycomb Lattice
Creators: name: Jiang, F. -J.
name: Kämpfer, F.
name: Hofmann, C. P.
name: Wiese, U. -J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by possible applications to the antiferromagnetic precursor of the high-temperature superconductor Na$_x$CoO$_2\cdot$yH$_2$O, we use a systematic low-energy effective field theory for magnons and holes to study different phases of doped antiferromagnets on the honeycomb lattice. The effective action contains a leading single-derivative term, similar to the Shraiman-Siggia term in the square lattice case, which gives rise to spirals in the staggered magnetization. Depending on the values of the low-energy parameters, either a homogeneous phase with four or a spiral phase with two filled hole pockets is energetically favored. Unlike in the square lattice case, at leading order the effective action has an accidental continuous spatial rotation symmetry. Consequently, the spiral may point in any direction and is not necessarily aligned with a lattice direction.
description: 10 pages, 6 figures
Partial Optimal Transport for a Constant-Volume Lagrangian Mesh with Free Boundaries
Creators: name: Lévy, Bruno
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: J.2; I.3
subject: 7401, 76M25, 76F65

description: This article introduces a representation of dynamic meshes, adapted to some numerical simulations that require controlling the volume of objects with free boundaries, such as incompressible fluid simulation, some astrophysical simulations at cosmological scale, and shape/topology optimization. The algorithm decomposes the simulated object into a set of convex cells called a Laguerre diagram, parameterized by the position of $N$ points in 3D and $N$ additional parameters that control the volumes of the cells. These parameters are found as the (unique) solution of a convex optimization problem -- semi-discrete Monge-Ampère equation -- stemming from optimal transport theory. In this article, this setting is extended to objects with free boundaries and arbitrary topology, evolving in a domain of arbitrary shape, by solving a partial optimal transport problem. The resulting Lagrangian scheme makes it possible to accurately control the volume of the object, while precisely tracking interfaces, interactions, collisions, and topology changes.
description: 37 pages, 17 figures
A macroscopic approach for stress driven anisotropic growth in bioengineered soft tissues
Creators: name: Lamm, L.
name: Holthusen, H.
name: Brepols, T.
name: Jockenhövel, S.
name: Reese, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The simulation of growth processes within soft biological tissues is of utmost importance for many applications in the medical sector. Within this contribution we propose a new macroscopic approach fro modelling stress-driven volumetric growth occurring in soft tissues. Instead of using the standard approach of a-priori defining the structure of the growth tensor, we postulate the existance of a general growth potential. Such a potential describes all eligable homeostatic stress states that can ultimately be reached as a result of the growth process. Making use of well established methods from visco-plasticity, the evolution of the growth related right Cauchy-Green tensor is subsequently defined as a time dependent associative evolution law with respect to the introduced potential. This approach naturally leads to a formulation that is able to cover both, isotropic and anisotropic growth related changes in geometry. It furthermore allows the model to flexibly adapt to changing boundary and loading conditions. Besides the theoretical development, we also describe the algorithmic implementation and furthermore compare the newly derived model with a standard formulation of isotropic growth.
Kinetomagnetism of chirality and its applications
Creators: name: Huang, Sang-Wook Cheongand Fei-Ting
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Chiral functionalities exhibited by systems lacking any mirror symmetry encompass natural optical activity, magnetochiral effect, diagonal current-induced magnetization, chirality-selective spin-polarized current of charged electrons or neutral neutrons, self-inductance, and chiral phonons. These phenomena are unified under the hypothesis of kinetomagnetism of chirality, which posits that any moving (charged or neutral) object in chiral systems induces magnetization in its direction of motion, consequently imparting chirality to the object due to this induced magnetization. We also found conjugate relationships among the kinetomagnetism of chirality, linear magnetoelectricity, and electric field induced directional nonreciprocity, highlighting their interconnections with magnetic, electric, and toroidal orders. The concept of the kinetomagnetism of chirality will be an essential basis for the theoretical understanding of known chiral phenomena such as natural optical activity or chiral phonons, and also the discovery of unexplored chiral functionalities.
description: 17 pages, 5 figures
The role of a medical coordinator in extended and long term care facilities in British Columbia : a Delphi study
Creators: name: Peck, Shaun Howard Saville
Publisher: name: University of British Columbia
Year: 2010

description: A role description for a medical coordinator in extended and long term care facilities in British Columbia has been defined using a Delphi method. Also obtained during the study was a long term care philosophy. Three groups - nurses, administrators, and physicians took part in three rounds of the Delphi study. Thirty-five respondents were interviewed in the first round. During this interview the researcher obtained from the respondents the statements that they considered should be included in this role and philosophy description. During the second round the respondents rated the responses of the first round and in the third round those of the second round were revised after seeing the mean scores of the whole group and the three separate groups. The description of the role of a medical coordinator developed describes the role as it applies to: resident care; private physicians; planning, development and evalution of care; staffing of a facility; education; administration; and the training, experience, skills and attitude of a medical coordinator. When the description created was compared with that for the medical director in a long term care facility in the United States it was found that this study had described additional dimensions of the role, in particular the multi-disciplinary approach and the physician's knowledge, training, experience, skills and attitude. The results of the study show where there was agreement and where there were differences of opinion between the three professional groups. A long term care philosophy which was considered very important for a medical coordinator to promote, has been defined during the study. It focuses on the resident reaching his full potential, the creation of a special environment, as well as acceptance of disability, dying and death. Recommendations from the study are made for facilities which might be considering employing a medical coordinator, for planners deciding whether to provide funds for medical coordinators, for geriatric medical education and for the acceptance of a long term care philosophy in all parts of the health care system where there are long term care clients.
Mode. Theorie, Geschichte und Ästhetik einer kulturellen Praxis.
Creators: name: Möller, Hanna
Publisher: name: Medienimpulse
Year: 2014

description: Medienimpulse, Bd. 52 Nr. 3 (2014): 3/2014 - Medienproduktion im Alltag von Kindern und Jugendlichen
LIINUS/SERPIL: a design study for interferometric imaging spectroscopy at the LBT
Creators: name: Sanchez, F. Mueller
name: Gal, C.
name: Eisenhauer, F.
name: Krabbe, A.
name: Haug, M.
name: Iserlohe, C.
name: Herbst, T. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present two design concepts and the science drivers of a proposed near-infrared interferometric integral field spectrograph for the LBT. This instrument will expand the capabilities of the currently-under-construction interferometric camera LINC-NIRVANA with spectroscopy by means of an integral field unit (IFU) located inside the LINC cryostat. Two instrument concepts have been studied in detail: a microlens array IFU with a spectrograph built entirely inside LINC (the LIINUS approach), and a lenslet+fibers IFU feeding an external spectrograph (the SERPIL approach). In both cases, the instrument incorporates imaging interferometry with integral field spectroscopy, an ideal combination for detailed studies of astronomical objects down to below 10mas angular resolution in the near-infrared. The scientific applications range from solar system studies and spectroscopy of exoplanets to the dynamics of stars and gas in the central regions of the Milky Way and other nearby galaxies.
description: 12 pages, 10 figures, SPIE conference proceedings, Marseille, 2008
Opción National Survey: Uruguay November 2019
Creators: name: Opción Consultores, In Bogliaccini, Juan, And Queirolo Rosario Laboratorio De Opinión Pública And Redes Sociales En Uruguay Collection (Social Networks And Public Opinion Lab Collection)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Interest in politics; vote for or against candidates; 2019 general election; 2019 runoff election; 2019 election prediction; 2014 ballot; Luis Lacalle Pou (National Party); Danial Martinez (Frente Amplio); President Tabaré Vázquez job approval; feelings toward Frente Amplio (a leftist political coalition); feelings toward the National Party. National Agency for Research and Innovation (ANII) Collection.
Apoderiger undetermined
Creators: name: Hlaváč, Peter
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Apoderiger
Apoderiger undetermined

description: Apoderiger sp.
Material examined
MADAGASCAR • 1 ♀; one label “RNF/ Sept. 2012/ 11 MADAGASCAR / Ranomafana N.P.; 8.x.2012 / S21°15’54.4’’ E47°25’01.8’’; 1003 m / Talatakely, sifting litter, Winkler/ app. extr. L.S. Rahanitriniaina lgt.” [white, printed]; PCPH.
Distribution
E Madagascar.
Remarks
This is the most southern Apoderiger so far known in Madagascar. Because the male is not available, we prefere not to describe it.
description: Published as part of Hlaváč, Peter, 2025, The Pselaphinae (Coleoptera: Staphylinidae) of Madagascar. VIII. Revision of the myrmecophilous clavigerine genus Apoderiger Wasmann, 1897, pp. 76-95 in European Journal of Taxonomy 981 on page 94, DOI: 10.5852/ejt.2025.981.2811, http://zenodo.org/record/15120438
Opción National Survey: Uruguay October 2019
Creators: name: Opción Consultores, In Bogliaccini, Juan, And Queirolo Rosario Laboratorio De Opinión Pública And Redes Sociales En Uruguay Collection (Social Networks And Public Opinion Lab Collection)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Interest in politics; vote for or against candidates; 2014 general election; Luis Lacalle Pou (National Party); Danial Martinez (Frente Amplio); President Tabaré Vázquez job approval; military policing; party primaries; confidence in the opposition's party ability to govern; country's principle problem; poverty/low wages/unemployment; government spending; corruption; crime; education; the economy; likeability of presidential candidates; presidential debate. National Agency for Research and Innovation (ANII) Collection.
The effect of local dipole moments on the structure and lattice dynamics of K0.98Li0.02TaO3
Creators: name: Wen, Jinsheng
name: Xu, Guangyong
name: Stock, C.
name: Gehring, P. M.
name: Zhong, Z.
name: Boatner, L. A.
name: Venturini, E. L.
name: Samara, G. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present high energy x-ray (67 keV) and neutron scattering measurements on a single crystal of K$_{1-x}$Li$_x$TaO$_3$ for which the Li content ($x=0.02$) is less than $x_c = 0.022$, the critical value below which no structural phase transitions have been reported in zero field. While the crystal lattice does remain cubic down to T=10 K under both zero-field and field-cooled ($E \le 4$ kV/cm) conditions, indications of crystal symmetry lowering are seen at $T_C=63$ K where the Bragg peak intensity changes significantly. A strong and frequency-dependent dielectric permittivity is observed at ambient pressure, a defining characteristic of relaxors. However an extensive search for static polar nanoregions, which is also widely associated with relaxor materials, detected no evidence of elastic neutron diffuse scattering between 300 K and 10 K. Neutron inelastic scattering methods were used to characterize the transverse acoustic and optic phonons (TA1 and TO1 modes) near the (200) and (002) Bragg peaks. The zone center TO1 mode softens monotonically with cooling but never reaches zero energy in either zero field or in external electric fields of up to 4 kV/cm. These results are consistent with the behavior expected for a dipolar glass in which the local polar moments are frozen and exhibit no long-range order at low temperatures.
description: 7 pages, 7 figures
Suppressing carrier density in (BixSb1-x)2Te3 films using Cr2O3 interfacial layers
Creators: name: Yao, Xiong
name: Yi, Hee Taek
name: Jain, Deepti
name: Oh, Seongshik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Band structure engineering and interfacial buffer layers have been demonstrated as effective means to tune the Fermi level in topological insulators (TI). In particular, the charge compensated compound (BixSb1-x)2Te3 (BST) plays a critical role in the molecular beam epitaxy growth of magnetic TIs. Here we introduce a strategy of exploiting epitaxial Cr2O3 as a buffer layer and amorphous Cr2O3 as a capping layer in the growth of BST films. These films exhibit carrier density lower than 1012/cm2 over a wide range of Bi contents and higher mobility than BST films directly grown on Al2O3 substrate, shedding light on the importance of interfacial layers for TI films and paving a new avenue to the application of magnetic BST films.
description: 5 pages, 3 figures, Invited article to a Special issue in Journal of Physics D: Applied Physics
Cyber Crime & Cyber War – "Part of the Game": Cyber Security, Quo Vadis?
Creators: name: Stingeder, Karl H.
Publisher: name: Medienimpulse
Year: 2015

description: Welche Rolle spielt Cyber Crime gegenwärtig? Was unterscheidet Cyber Crime von Cyber War? Wie muss Cyber Security gestaltet sein, um effektiven Schutz nachhaltig zu gewährleisten? Cyber Crime-Aktivitäten kennzeichnen sich häufig durch eine einfache Zugänglichkeit von betrügerischem Know-How und technischen Hilfsmitteln. Bedingt durch eine schleppende und mangelhafte Umsetzung von koordinierten Gegenmaßnahmen, resultieren Cyber-Delikte in einem Low-Risk und High-Reward Szenario für Cyber-Kriminelle. Je organisierter und spezialisierter ein Cyber-Crime-Netzwerk gestaltet ist, desto größer wird das Schadenspotenzial. Cyber Crime ist der Überbegriff für betrügerische Aktivitäten über das Internet. Diese stützen sich auf das Vorbild von "traditionellen" Offline-Kriminalitätsverhaltensmustern, welche durch das technologische Spektrum des Internets einfach zugänglich sind. Nichtsdestoweniger ist es die technische Ausführung der Delikte, die ein wesentliches Unterscheidungsmerkmal zwischen Online- und Offline-Betrug bildet. Auch steht die für organisierte, kriminelle Verbindungen, so auch für Regierungen oder Terrororganisationen geringere Hemmschwelle für eine militärische Instrumentalisierung des Internets im Brennpunkt von Cyber Security. Erfolgen Cyber Crime Aktivitäten unter dem Anspruch der Verfolgung politischer Ziele, sprechen wir von Cyber War. Nachhaltige, gegen Cyber Crime und Cyber War gerichtete Cyber Security-Maßnahmen finden in einem hochdynamischen Umfeld statt. Cyber-Kriminelle sind im Regelfall logistisch und finanziell gut ausgestattet. Viele werden von Regierungen unterstützt. Cyber Crime-Player verfügen über weitreichende technische Fähigkeiten, sodass sie maßgeschneiderte Schadprogramme (Malware) für ihre Ziele entwickeln können. Aktuell fehlt vielen Unternehmen und öffentlichen Institutionen das Bewusstsein für die Notwendigkeit von Abwehrsystemen. Ein Cyber Security-Fokus auf Präventivmaßnahmen ist weder ausreichend noch nachhaltig.
description: Medienimpulse, Bd. 53 Nr. 3 (2015): 3/2015 - Handeln mit Symbolen
Editorial 3/2016: Mediales Lernen/Lehren im Fremdsprachenunterricht/beim Spracherwerb
Creators: name: Barberi, Alessandro
name: Berger, Christian
name: Strasser, Thomas
Publisher: name: Medienimpulse
Year: 2016

description: Medienimpulse, Bd. 54 Nr. 3 (2016): 3/2016 - Mediales Lernen/Lehren im Fremdsprachenunterricht/beim Spracherwerb
COMPARATIVE FREQUENCY OF PREVALENCE OF INDIVIDUAL FORMS OF CONGENITAL CURVATURES OF THE GENITAL PENIS IN CHILDREN OF NAMANGAN
Creators: name: Mamasaliev, N.S.
name: Nurmatov, E.Kh.
name: Alimov, M.M.
name: Mamasaliev, Z.N.
name: Qurbonova, R.R.
Publisher: name: Zenodo
Year: 2025

description: Hypospadias as a disease was first described by Galen. However, hypospadias remains the most important medical and medical - social problem today throughout the world.
On commutator relations in $2$-spherical RGD-systems
Creators: name: Bischof, Sebastian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: In this paper we investigate the commutator relations for prenilpotent roots which are nested. These commutator relations are trivial in a lot of cases.
In-line fiber optic optofluidic sensor based on a fully open Fabry-Perot interferometer
Creators: name: Duan, Dewen
name: Kang, Qian
name: Yang, Qianhui
name: Zhao, Zihao
name: Li, Na
name: Du, Guan-Xiang
name: Xie, Yi-Yuan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences
subject: 7805

description: We present an all-fiber, fully open Fabry-Perot interferometer (FPI) cavity that is suitable for fluidic measurement applications. Fabrication of the FPI involves the alignment and bonding of three optical fiber sections using either ceramic glue or low-temperature melting glass. The fabrication procedure allows the protection of the cleaved optical fiber end faces, which serve as the two mirrors of the FPI, from damage, thus ensuring the high visibility of the FPI sensor. The FPI's complete openness permits the analyte of interest fluids to flow smoothly into the cavity and interact directly with the light, obviating the need for additional assistance. The fabrication experiment demonstrates that the fabrication procedure can readily achieve a visibility of over 20 dB. Refractive index testing indicates that the sensor exhibits a sensitivity of over 1116 nm/RIU within the range of 1.334-1.375. A comparison of temperature investigations indicates that the fully open cavity FPI fabricated by bonding with low-temperature melting glass exhibits relatively lower temperature immunity than that bonded with ceramic glue. Both have a relatively low temperature fluctuation within the temperature range of 40°C-100°C, with less than 3 nm and 4.5 nm in the over 60°C changes, respectively. Our proposed fully open FPI is an economical, robust, and simple-to-fabricate structure with the potential for mass production. This renders it an appealing option for practical optofluidics applications.
description: 6 pages, 10 figures
Interference oscillations of microwave photoresistance in double quantum wells
Creators: name: Wiedmann, S.
name: Gusev, G. M.
name: Raichev, O. E.
name: Lamas, T. E.
name: Bakarov, A. K.
name: Portal, J. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We observe oscillatory magnetoresistance in double quantum wells under microwave irradiation. The results are explained in terms of the influence of subband coupling on the frequency-dependent photoinduced part of the electron distribution function. As a consequence, the magnetoresistance demonstrates the interference of magneto-intersubband oscillations and conventional microwave- induced resistance oscillations.
description: 5 pages, 3 figures
title: Die Systemgestaltung durch das Europäische Parlament: eine Analyse der EURATOM Verträge
Creators: name: Umek, Philipp
Publisher: name: Universität Innsbruck
Year: 2016

description: Das Europäische Parlament ist als einzig direkt gewähltes Organ der Europäischen Union ein zentraler institutioneller Akteur und gestaltet die Europäische Union entscheidend mit. Ich erforsche die Entwicklung der EURATOM-Verträge um zu erklären, wie diese Verträge die Gelegenheitsstrukturen des Europäischen Parlaments zur Systemgestaltung geprägt haben. Das Ziel meiner Forschung ist, die Möglichkeiten des Parlaments zur Beeinflussung und Mitgestaltung der Europäischen Integration in diesem Bereich zu erklären, indem ich die EURATOM-Verträge von 1957 und 2012 analysiere. Die Entscheidungsmodi und Gelegenheitsstrukturen werden codiert und gegenübergestellt um eine zeitliche Entwicklung abzulesen.
Opción National Survey: Uruguay September 2019
Creators: name: Opción Consultores, In Bogliaccini, Juan, And Queirolo Rosario Laboratorio De Opinión Pública And Redes Sociales En Uruguay Collection (Social Networks And Public Opinion Lab Collection)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Interest in politics; vote for or against candidates; party primaries; 2014 general election; Luis Lacalle Pou (National Party); Danial Martinez (Frente Amplio); President Tabaré Vázquez job approval; military policing; confidence in the opposition's party ability to govern; country's principle problem; poverty/low wages/unemployment; government spending; corruption; crime; education; the economy; likeability of presidential candidates; governemnt treatment of foreign vs domestic corporations. National Agency for Research and Innovation (ANII) Collection.
Die Digitale Revolution frisst unsere Kinder?
Creators: name: Ulbrich, Hans-J.
Publisher: name: Medienimpulse
Year: 2016

description: Medienimpulse, Bd. 54 Nr. 3 (2016): 3/2016 - Mediales Lernen/Lehren im Fremdsprachenunterricht/beim Spracherwerb
Mini-review on Monte Carlo programs for Bhabha scattering
Creators: name: Balossini, G.
name: Bignamini, C.
name: Calame, C. M. Carloni
name: Montagna, G.
name: Nicrosini, O.
name: Piccinini, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review the status of Monte Carlo generators presently used for simulations of the large-angle Bhabha process at electron-positron colliders of moderately high energy (flavour factories), operating at centre-of-mass energies between about 1 GeV and 10 GeV. It is shown how the theoretical accuracy reached by present Bhabha programs for physics at flavour factories is at the level of 0.1% and, therefore, comparable with that reached about a decade ago for luminosity monitoring through small-angle Bhabha scattering at LEP.
description: Contribution to the Proceedings of the 9th DESY workshop on "Loops and Legs in Quantum Field Theory", Sondershausen, April 2008
Characterizing Human Mobility Patterns in a Large Street Network
Creators: name: Jiang, Bin
name: Yin, Junjun
name: Zhao, Sijian
Publisher: name: arXiv
Year: 2008
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Previous studies demonstrated empirically that human mobility exhibits Levy flight behaviour. However, our knowledge of the mechanisms governing this Levy flight behaviour remains limited. Here we analyze over 72 000 people's moving trajectories, obtained from 50 taxicabs during a six-month period in a large street network, and illustrate that the human mobility pattern, or the Levy flight behaviour, is mainly attributed to the underlying street network. In other words, the goal-directed nature of human movement has little effect on the overall traffic distribution. We further simulate the mobility of a large number of random walkers, and find that (1) the simulated random walkers can reproduce the same human mobility pattern, and (2) the simulated mobility rate of the random walkers correlates pretty well (an R square up to 0.87) with the observed human mobility rate.
description: 13 figures, 17 pages
Die Kultusministerkonferenz und die Medienbildung – Stellungnahmen zum KMK-Strategie-Entwurf "Bildung in der digitalen Welt"
Creators: name: Missomelius, Petra
Publisher: name: Medienimpulse
Year: 2016

description: Medienimpulse, Bd. 54 Nr. 3 (2016): 3/2016 - Mediales Lernen/Lehren im Fremdsprachenunterricht/beim Spracherwerb
A full-dimensional quantum dynamical study of the vibrational ground state of $H_3O_2^-$ and its isotopomers
Creators: name: Yang, Yonggang
name: Kühn, Oliver
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We investigated the effect of deuteration on the vibrational ground state of the hydrated hydroxide anion using a nine-dimensional quantum dynamical model for the case of J=0. The propagation of the nuclear wave function has been performed with the multi-configuration time-dependent Hartree method which yielded zero-point energies for the normal and fully deuterated species in quantitative agreement with previous diffusion Monte Carlo calculations. According to the zero-point energy the isotopomers having the hydrogen atom in the bridging position are more stable by about 1 kJ/mol as compared to the deuterium case. This holds irrespective of the deuteration state of the two OH groups. We also report the secondary geometric H/D isotope effect on the O--O distance which amounts to an elongation of about 0.005 A for the symmetric isotopomers and 0.009 A in the asymmetric case. Finally, we explore the isotopomer sensitivity of the ground state tunneling splitting due to the torsional motion of the two OH groups.
description: 21 pages, 3 figures, 5 tables
Opción National Survey: Uruguay August 2019
Creators: name: Opción Consultores, In Bogliaccini, Juan, And Queirolo Rosario Laboratorio De Opinión Pública And Redes Sociales En Uruguay Collection (Social Networks And Public Opinion Lab Collection)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Interest in politics; feeling toward political parties; military policing; President Tabaré Vázquez job approval; confidence in the opposition's party ability to govern; country's principle problem; poverty/low wages/unemployment; government spending; corruption; crime; education; the economy; party primaries; likeability of presidential candidates; relationship with Brazilian government; labor strikes; sexual diversity; immigration; 2014 general election; Luis Lacalle Pou (National Party); Danial Martinez (Frente Amplio). National Agency for Research and Innovation (ANII) Collection.
Exploiting Localized Transition Waves to Tune Sound Propagation in Soft Materials
Creators: name: Watkins, Audrey A.
name: Eichelberg, Austin
name: Bilal, Osama R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Programmable materials hold great potential for many applications such as deployable structures, soft robotics, and wave control, however, the presence of instability and disorder might hinder their utilization. Through a combination of analytical, numerical, and experimental analyses, we harness the interplay between instabilities, geometric frustration, and mechanical deformations to control the propagation of sound waves within self-assembled soft materials. We consider levitated magnetic disks confined by a magnetic boundary in-plane. The assemblies can be either ordered or disordered depending on the intrinsic disk symmetry. By applying an external load to the assembly, we observe the nucleation and propagation of different topological defects within the lattices. In the presence of instabilities, the defect propagation gives rise to time-independent localized transition waves. Surprisingly, in the presence of frustration, the applied load briefly introduces deformation-induced order to the material. By further deforming the lattices, new patterns emerge across all disk symmetries. We utilize these patterns to tune sound propagation through the material. Our findings could open new possibilities for designing exotic materials with potential applications ranging from sound control to soft robotics.
Sherlock – der Dandy in tausend Gestalten
Creators: name: Rogy, Raffaela
Publisher: name: Medienimpulse
Year: 2016

description: Entsprungen aus den viktorianischen Romanen von Sir Arthur Conan Doyle kehrt die Figur des Kriminalvirtuosen Sherlock Holmes in das 21. Jahrhundert mit der BBC-Serie Sherlock zurück. Der vorliegende Text geht dem Privatdetektiv Sherlock Holmes in dieser Neuinterpretation nach und untersucht Konzepte äußerlicher wie innerlicher Performanz. Denkfiguren wie das Genie, der Dandy oder der Held werden miteinander diskutiert, in Beziehung gesetzt und (neu) interpretiert. Dabei werden Techniken von Einsamkeit mit dem Attribut der Langeweile und des Spiels gelesen. Die filmästhetische Ebene bildet einen entscheidenden Faktor, um den genialen Kopf, die dandyhafte Attitüde und die heldenhaften Taten von Sherlock zu erkennen und nachzuvollziehen. Auf stilistischer Seite war es ein Anliegen die Spannungselemente sowie die Ausgänge der einzelnen Episoden von Sherlock nicht preiszugeben und alles auf die Figur Sherlock Holmes mit ihrer zeitlichen Transformation und vielseitigen Charakteristik, die die Bildung einer Hybridgestalt fordert, zu fokussieren.
description: Medienimpulse, Bd. 54 Nr. 3 (2016): 3/2016 - Mediales Lernen/Lehren im Fremdsprachenunterricht/beim Spracherwerb
Orbital motion of NGC 6166 (3C 338) and its impact on the jet morphology at kiloparsec scales
Creators: name: Antas, A. S. R.
name: Caproni, A.
name: Machado, R. E. G.
name: Laganá, T. F.
name: Souza, G. S.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the central region of the galaxy cluster Abell 2199 (A2199) resides the cD galaxy NGC 6166, which spatially coincides with the 3C 338 radio source. Lobes, jets, and a more detached southern structure (similar to a jet labelled as ridge) are seen at kiloparsec-scale images of 3C 338. This unusual radio morphology has led to the proposition of different hypotheses about its physical origin in the literature. In this work, we study the feasibility of a dynamical scenario where NGC 6166 moves around the X-ray inferred centre of A2199 from the point of view of three-dimensional hydrodynamic simulations. The physical characteristics of the intra-cluster medium in which the jet propagates are constrained to those derived from X-ray observations in the vicinity of NGC 6166. Possible orbits for the jet inlet region are derived from the estimated radial velocity of NGC 6166, while the jet parameters are constrained by parsec-scale interferometric radio observations and the estimated jet power of 3C 338 obtained from radio and X-ray data. Our results show that the hypothesis of NGC 6166 has been moving around the centre of A2199 during the last tens of million of years is compatible with the general radio morphology of 3C 338. Furthermore, the proposed dynamic scenario for the motion of NGC 6166 may be linked to gravitational perturbations induced by the passage of a sub-cluster of galaxies hundreds of millions of years ago.
description: 26 pages, 24 figures;
title: Front Matter, Table of Contents, Preface, Conference Organization
Creators: name: Haddad, Serge
name: Varacca, Daniele
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2021
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization
subject: Theory of computation → Concurrency

description: Front Matter, Table of Contents, Preface, Conference Organization
description: LIPIcs, Vol. 203, 32nd International Conference on Concurrency Theory (CONCUR 2021), pages 0:i-0:xiv
Random versus holographic fluctuations of the background metric. I. (Cosmological) running of space-time dimension
Creators: name: Maziashvili, Michael
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A profound quantum-gravitational effect of space-time dimension running with respect to the size of space-time region has been discovered a few years ago through the numerical simulations of lattice quantum gravity in the framework of causal dynamical triangulation [hep-th/0505113] as well as in renormalization group approach to quantum gravity [hep-th/0508202]. Unfortunately, along these approaches the interpretation and the physical meaning of the effective change of dimension at shorter scales is not clear. The aim of this paper is twofold. First, we find that box-counting dimension in face of finite resolution of space-time (generally implied by quantum gravity) shows a simple way how both the qualitative and the quantitative features of this effect can be understood. Second, considering two most interesting cases of random and holographic fluctuations of the background space, we find that it is random fluctuations that gives running dimension resulting in modification of Newton's inverse square law in a perfect agreement with the modification coming from one-loop gravitational radiative corrections.
description: 6 pages, Accepted for publication in Phys. Lett. B
Combining Binary Security, Artificial Neural Network Security and Philosophy of Science
Creators: name: Silva, Pedro Mendes Da
Publisher: name: Zenodo
Year: 2019
Subjects: Binary Security
Neural Network Security
Philosophy of Science.
Science of security

description: Three papers from different disciplines are analyzed and a future research direction combining concepts from these papers is proposed, merging ideas from Binary Security, Neural Network Security and Philosophy

of Science.

Technical Report for the Interdisciplinary Research discipline,

PDEIC, 2018.
description: Technical Report for the Interdisciplinary Research discipline,
PDEIC, 2018. This research was supported by FCT-Portugal grant
SFRH/BD/132560/2017