cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Iguanadon and the order dinosauria: extinct, but evolving terrible lizards
Creators: name: Hill, Sheila
Publisher: name: University of British Columbia
Year: 2009

description: Reconstructions of the Iguanodon are an excellent subject upon which to base a study of the relationship between scientific theory and physical evidence. Several fossilized Iguanodon bones were introduced into science, as it then existed, beginning in the early 1820s. These new fossil-remains were interpreted in 1841 by Richard Owen, the pre-eminent British comparative anatomist of his day, when he presented his "Report on British Fossil Reptiles" paper to the British Association for the Advancement of Science. In this paper, he reconstructed the Iguanodon and created the Order Dinosauria. Owen's creation of the Iguanodon, the Order Dinosauria, and his subsequent three-dimensional Iguanodon reconstructions of the late 1840s and 1850s can be viewed through a Kuhnian lens as one element of a battle between two clashing scientific paradigms. Owen created the Order Dinosauria and the Iguanodon with encouragement of influential, conservative members of the scientific establishment to support their theory of Divine Creation and to discredit the materialistic theories of evolution being imported into England from Europe. Owen used his 1841 general review of terrestrial British fossil reptiles to argue against the continuous progressive development of the transmutatory (evolutionary) theories of the period. To overcome what the natural historians of his time believed was a regularity of the progress in fossil record, in which the age of fishes gave way into the age of reptiles which eventually progressed into the mammalian age, Owen employed the extremely limited fossil evidence as a basis for his creation of the Order Dinosauria and his reconstruction of the Iguanodon to establish that dinosaurs were superior to modern reptiles as dinosaurs were rich in mammalian features, from their pachyderm-like posture to active, warm-blooded lifestyles. In contrast, modern reptiles were small, cold-blooded and far removed from the apex of creation. If this was evolution, in was retrograde, and not progressive — exactly as the Divine Creator could have planned in anticipation of his most glorious creation, man.
Improved constraints on non-Newtonian forces at 10 microns
Creators: name: Geraci, Andrew A.
name: Smullin, Sylvia J.
name: Weld, David M.
name: Chiaverini, John
name: Kapitulnik, Aharon
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Astrophysics (astro-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Several recent theories suggest that light moduli or particles in "large" extra dimensions could mediate macroscopic forces exceeding gravitational strength at length scales below a millimeter. Such new forces can be parameterized as a Yukawa-type correction to the Newtonian potential of strength $α$ relative to gravity and range $λ$. To extend the search for such new physics we have improved our apparatus utilizing cryogenic micro-cantilevers capable of measuring attonewton forces, which now includes a switchable magnetic force for calibration. Our most recent experimental constraints on Yukawa-type deviations from Newtonian gravity are more than three times as stringent as our previously published results, and represent the best bound in the range of 5 - 15 microns, with a 95 percent confidence exclusion of forces with $|α| > 14,000$ at $λ$ = 10 microns.
description: 12 pages, 9 figures, accepted for publication in PRD. Minor changes, replaced and corrected Figs 4,5,8
Rezension: "Aufklärung zwischen Kritik und Bedarf. Zum kritischen Potential von Christoph Ransmayrs journalistischem und literarischem Werk" von Henrike Serfas
Creators: name: Gnoato, Davide
Publisher: name: Medienimpulse
Year: 2023

description: Der österreichische Autor Christoph Ransmayr ist einem breiteren Publikum vor allem als erfindungsreicher Romancier bekannt. Die Germanistin Henrike Serfas nimmt in ihrer Dissertation nun vor dem Hintergrund von Theodor W. Adornos/Max Horkheimers Dialektik der Aufklärung sowohl Ransmayrs journalistisches Werk als auch eine Auswahl seiner an der Grenze von Reportage und Fiktion operierenden Texte in den Fokus.
description: Medienimpulse, Bd. 61 Nr. 4 (2024): Habitus / Medialer Habitus / Digitaler Habitus
Individuelle und kollektive Folgen von Social Media-Plattformen aus Sicht der Medienpädagogik
Creators: name: Richter-Boisen, Anette
name: Mertens, Claudia
Publisher: name: Medienimpulse
Year: 2023

description: In diesem Beitrag werden individuelle und kollektive Folgen für Nutzer*innen von Social Media-Plattformen im Kontext ihrer verhaltenslenkenden Strategien untersucht und diskutiert. Der Fokus liegt hierbei auf der potentiell sozialtrennenden Wirkung der Methoden zur Gewinnung und Festhaltung von Nutzer*innen auf diesen Plattformen. Des Weiteren wird die Rolle von Medienkompetenz als Voraussetzung für kritische Reflexion und Handeln in einer demokratischen aber zunehmend digitalisierten Gesellschaft thematisiert.
description: Medienimpulse, Bd. 61 Nr. 4 (2024): Habitus / Medialer Habitus / Digitaler Habitus
Stellar models with self-consistent Rosseland opacities
Creators: name: Hui-Bon-Hoa, Alain
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The building of a stellar structure requires knowing the Rosseland mean opacity at each layer of the model. This mean opacity is very often interpolated in pre-computed tables due to the overwhelming time to compute it from monochromatic cross sections. The main drawback to using tables is that the opacities can be inconsistent with the actual local chemical composition, for instance in the regions of the star where nucleosynthesis occurs. We developed a strategy that allows very fast calculations of Rosseland opacities from monochromatic cross sections. This method has been implemented in the Toulouse-Geneva evolution code, which we used to compute evolutionary tracks with models whose Rosseland opacities are fully consistent with the chemical mix everywhere in the star. Our self-consistent models show very small structural differences compared to models where the Rosseland opacity is computed with a fixed metal mixture. The main-sequence evolutionary tracks are almost the same for models of mass ranging from 2 to 8 solar masses. At a given surface gravity the relative difference in age is lower than 2% and generally below 1% between the two kinds of calculations, the self-consistent model being younger most of the time. Unless such a precision in age is sought out, the use of tabulated Rosseland opacities with a metal content defined globally is still acceptable, at least in main-sequence stars where the chemical mix changes only through nucleosynthesis.
description: 4 pages, 5 figures
Property Characterization of Carbon Nanotube Reinforced S-Glass and Carbon Fiber Composites
Creators: name: Markkula, Samuel Juhani
Publisher: name: Maryland Shared Open Access Repository
Year: 2009
Subjects: Carbon Nanotube
Compression Testing
Fiber Composite
Multi-length scale
Shear Testing
Tension Testing

description: In this work, unidirectional multi-length scale composites were manufactured and mechanically tested. Carbon nanotubes (CNTs) were grown onto the surfaces of AGY S2-Glass fibers, Grafil 34-700 carbon fibers and Hexcel IM7 carbon fibers using an in-line continuous chemical vapor deposition-based growth process. The processing parameters peculiar to the growth system were growth chamber temperature, catalyst concentration and line speed. These were varied to observe the effect on the CNT growth and parent filament degradation. These processed filaments were wound into unidirectional panels and infused with EPON 828 Epoxy. Unidirectional tension and compression tests were conducted in the reinforcement direction and the in-plane and interlaminar shear responses were also characterized. The effects of processing on micro-morphology were observed via electron microscopy of the CNT-enhanced filaments. The concentration and type of growth directly affected the composite physical properties, specifically fiber volume and bulk density. Increases in growth chamber temperature, chamber residence time and catalyst concentrations each led to a greater volume of CNTs grown on the filament surfaces. Greater volume of CNTs prevents close packing of the filaments, thus decreasing fiber volume and density. The fiber volume directly affects composite mechanical properties in the reinforcement direction. A uniform coating of short CNTs creates a multi-length scale composite that exhibits increases in strength, stiffness and functional extension in the fiber direction. For in-plane and interlaminar shear, a larger volume of CNTs was shown to increase ultimate shear strength and post-failure toughness. These Fiber-CNT-Epoxy composites can be tailored for specific applications based on mechanical property requirements.
Mechanics of Soft Tissue Penetration by a Vibrating Needle
Creators: name: Muralidharan, Krithika
Publisher: name: Maryland Shared Open Access Repository
Year: 2007
Subjects: Engineering, Mechanical (0548)
Engineering, Biomedical (0541)

description: The objective of the current investigation was to measure the force exerted by a vibrating needle as it penetrated into a tissue surrogate or into a soft tissue. Specifically, the former was a clay construct covered with latex rubber 'skin' and the latter was a chicken ventriculus (gizzard). The penetration force was assessed within the frequency range 0-1000 Hz. The influence of mechanical parameters including needle tip geometry, needle diameter, vibration amplitude, speed of insertion and the temperature of the specimen on the penetration force was also assessed. The results showed that the penetration force can be reduced by 2 to 3 times by vibrating a hypodermic needle at 100-1000Hz, in both tissue surrogate and soft tissue. Also, as expected larger amplitudes of vibration, slower rates of insertion, smaller needles, sharper tips and higher specimen temperature all tended to reduce the needle insertion force. The statistical significance of the results obtained by experimental study of tissue surrogate and soft tissue were assessed using appropriate standard test methods. In most cases, ANOVA and post-hoc Tukey's comparison indicated that the variation in penetration force according to frequency and the other test parameters was highly significant (p < 0.001), which lends credence to the idea that needle induced trauma and pain can be reduced by modulating the relevant kinetic and geometric parameters.
The structure of double groupoids
Creators: name: Andruskiewitsch, Nicolás
name: Natale, Sonia
Publisher: name: arXiv
Year: 2006
Subjects: subject: Category Theory (math.CT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 20L05, 18D05

description: We give a general description of the structure of a discrete double groupoid (with an extra, quite natural, filling condition) in terms of groupoid factorizations and groupoid 2-cocycles with coefficients in abelian group bundles. Our description goes as follows: To any double groupoid, we associate an abelian group bundle and a second double groupoid, its frame. The frame satisfies that every box is determined by its edges, and thus is called a `slim' double groupoid. In a first step, we prove that every double groupoid is obtained as an extension of its associated abelian group bundle by its frame. In a second, independent, step we prove that every slim double groupoid with filling condition is completely determined by a factorization of a certain canonically defined `diagonal' groupoid.
description: amslatex, 28 pages, revised version to appear in J. Pure Appl. Algebra
Medienkritik und pädagogisches Handeln im Unterrichtsfach Digitale Grundbildung
Creators: name: Eichstetter, Pia
name: Rainer, Florian
Publisher: name: Medienimpulse
Year: 2023

description: Seit dem Schuljahr 2022/2023 wird Digitale Grundbildung flächendeckend als Pflichtfach in Österreich unterrichtet. Der vorliegende Beitrage stellt eine erste Untersuchung des verpflichtenden Unterrichtsfaches dar. Es wird untersucht, inwiefern Medienkompetenz aus der Sicht einer befragten Lehrperson vermittelt wird. Das Verstädnis von Medienkritik wird dabei genauer analysiert.
description: Medienimpulse, Bd. 61 Nr. 4 (2024): Habitus / Medialer Habitus / Digitaler Habitus
Discontinuous current-phase relations in small 1D Josephson junction arrays
Creators: name: Koch, Jens
name: Hur, Karyn Le
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the Josephson effect in small one-dimensional (1D) Josephson junction arrays. For weak Josephson tunneling, topologically different regions in the charge-stability diagram generate distinct current-phase relationships (I$Φ$). We present results for a three-junction system in the vicinity of charge degeneracy lines and triple points. We explain the generalization to larger arrays, show that discontinuities of the I$Φ$ at phase $π$ persist and that, at maximum degeneracy, the problem can be mapped to a tight-binding model providing analytical results for arbitrary system size.
description: 4 pages, 4 figures
Numerical Modeling of Multicrystalline Silicon Growth in a Directional Solidification System
Creators: name: Benson, Adebukola O.
Publisher: name: Maryland Shared Open Access Repository
Year: 2007
Subjects: Multicrystalline, silicon, Directional Solidification, Phase change, Numerical modeling
Engineering, Mechanical (0548)

description: The Directional Solidification is a very important technique for growing high quality multicrystalline silicon at large scale. The physics governing the growth of multicrystalline silicon in the Directional Solidification System involves complex non-linear transport phenomena including but not limited to heat transfer, solidification, thermal stress development, and the formation of defects.  Specifically, heat transfer and solidification process has significantly impact on the quality and productivity of the crystals. This thesis is aimed to achieve an advanced understanding the heat transfer and solidification during the growth process and to identify important design and control parameters that can be modified to improve the processing conditions. To achieve this goal, a coupled heat transfer and solidification model was developed to investigate global heat transfer in the furnace, and solidification in the crucible. Commercial computational fluid dynamics software was used to implement this model. The proposed model was applied to numerically simulate the growth of multicrystalline silicon. The temperature distribution, the shape of the solidification interface, and the evolution of interface during the growth was predicted. The effects of the loading process, the supporting structure, and heater position were investigated. Modifications of current design were proposed in an effort to convert the concave solidification interface, which is not desirable in crystal growth, to a convex shape. Further the effect of different production control profile was analyzed. It is expected that the information obtained from this research will help improve furnace design and process control for producing high quality multicrystalline silicon ingots at high throughput.
Statistics for Iwasawa invariants of elliptic curves
Creators: name: Kundu, Debanjana
name: Ray, Anwesh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11R23, 11R45, 11G05

description: We study the average behaviour of the Iwasawa invariants for the Selmer groups of elliptic curves, setting out new directions in arithmetic statistics and Iwasawa theory.
description: Final version, to appear in Transactions of the AMS. 18 pages
LOWER PLIOCENE BARNACLE FACIES OF WESTERN LIGURIA (NW ITALY): A PEEK INTO A WARM PAST AND A GLIMPSE OF OUR INCOMING FUTURE
Creators: name: COLETTI, GIOVANNI
name: BOSIO, GIULIA
name: COLLARETA, ALBERTO
Publisher: name: RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA
Year: 2021

description: The lower Pliocene deposits of Pairola (Liguria, Italy) display the otherwise rare occurrence of rock-forming amounts of barnacles (mostly belonging to the extinct Euromediterranean species Concavus concavus). Three main facies are recognised in the investigated succession: a barnacle-dominated facies, which formed along a shallow (<15 m deep) nearshore environment, a foraminifera-dominated facies from relatively deeper waters (40-100 m), and an intermediate facies forming at the boundary of the other two. These facies and their relationships suggest deposition in a flooded valley – a kind of setting that was common in the Mediterranean after the Messinian Salinity Crisis. Differing from other rias, the Pairola basin was exposed to strong waves, resulting in conditions favourable to barnacles. Sedimentological and stratigraphic observations indicate that the Pairola succession formed within a timespan covering both cold and warm phases. This is relevant because the sub-tropical foraminifer Amphistegina is ubiquitous throughout the succession. Amphistegina occurs in the Pliocene and lower Pleistocene (Gelasian) of Northern Italy, but not in the remainder of the Pleistocene, not even its warm portions. This genus is currently recolonizing the Mediterranean and is projected to reach the northern coast of the basin soon, foretelling that Anthropocene temperatures are going to overcome those of the late Pleistocene warm periods and reach those of the Pliocene.
description: RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA , V. 127 N. 1 (2021)
Editorial 04/2023: Habitus / Medialer Habitus / Digitaler Habitus
Creators: name: Biermann, Ralf
name: Barberi, Alessandro
name: Zuliani, Barbara
Publisher: name: Medienimpulse
Year: 2023

description: Mit der Habitustheorie von Pierre Bourdieu steht ein wissenschaftliches Instrumentarium zur Verfügung, dessen Einfluss weit über die Soziologie hinausreicht und u. v. a. in der Bildungswissenschaft intensiv rezipiert und praktisch umgesetzt wurde (vgl. Rieger-Ladich/Grabau 2017). Die Hauptwerke Bourdieus – etwa Die feinen Unterschiede (1982) oder der Homo Academicus (1988) – sind pointierte Analysen gesellschaftlicher Ausschnitte ihrer Zeit. Die Methoden und die daraus entwickelten theoretischen Implikationen dienten und dienen noch immer als Inspirationsquelle für zahlreiche Forschungsarbeiten und medienpädagogische Modelle, wenn es etwa um die Akkumulation von Bildungskapital, um soziale Ungleichheiten und Klassenantagonismen oder auch um die Verhaltensdispositionen von Akteur*innen geht.
description: Medienimpulse, Bd. 61 Nr. 4 (2024): Habitus / Medialer Habitus / Digitaler Habitus
L’identità (religiosa) della persona migrante e l’accoglienza in Italia, tra le derive securitarie e le politiche di integrazione civica. Brevi considerazioni
Creators: name: Montesano, Stefano
Publisher: name: Stato, Chiese e pluralismo confessionale
Year: 2021

description: SOMMARIO: 1. Il migrante e il suo Dio: prove di identificazione e input di integrazione? - 2. L’identità (anche religiosa) della persona migrante. Dalle politiche discriminatrici all’integrazione civica nel modello di accoglienza italiano. Profili critici - 3. Una (prima e utopica) conclusione: la ridefinizione dell’ordine costituente a partire dall’Altro. The (religious) identity of the migrant person in the reception system, between security drifts and civic integration policies. Brief considerations. ABSTRACT: The essay takes into consideration some general profiles relating to the issue of immigration. Particular attention is paid to the critical issues that can be found in the context of the reception system in Italy that compromise the migrant's right to religious identity.
description: Stato, Chiese e pluralismo confessionale, 2021: 15 febbraio
In-situ acceleration of subrelativistic electrons in the Coma halo and the halo's influence on the Sunyaev-Zeldovich effect
Creators: name: Dogiel, V. A.
name: Colafrancesco, S.
name: Ko, C. M.
name: Kuo, P. H.
name: Hwang, C. Y.
name: Ip, W. H.
name: Birkinshaw, M.
name: Prokhorov, D. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The stochastic acceleration of subrelativistic electrons from a background plasma is studied in order to find a possible explanation of the hard X-ray (HXR) emission detected from the Coma cluster. We calculate the necessary energy supply as a function of the plasma temperature and of the electron energy. We show that, for the same value of the HXR flux, the energy supply changes gradually from its high value (when emitting particle are non-thermal) to lower values (when the electrons are thermal). The kinetic equations we use include terms describing particle thermalization as well as momentum diffusion due to the Fermi II acceleration. We show that the temporal evolution of the particle distribution function has, at its final stationary stage, a rather specific form: it cannot be described by simple exponential or power-law expressions. A broad transfer region is formed by Coulomb collisions at energies between the Maxwellian and power-law parts of the distribution function. In this region the radiative lifetime of a single electron differs greatly from the lifetime of the distribution function as a whole. For a plasma temperature of 8 keV, the particles emitting bremsstrahlung at 20-80 keV lie in this quasi-thermal regime. We show that the energy supply required by quasi-thermal electrons to produce the observed HXR flux from Coma is one or two orders of magnitude smaller than the value derived from the assumption of a nonthermal origin of the emitting particles. This result may solve the problem of rapid cluster overheating by nonthermal electrons. We finally predict the change in Coma's SZ effect caused by the distortions of the Maxwellian electron spectrum, and we show that evidence for acceleration of subrelativistic electrons can be derived from detailed spectral measurements.
description: 14 pages, 11 figures, A&A in press
title: Chondroid syringoma of the foot
Creators: name: Morris, Robert
Publisher: name: EURORAD
Year: 2024
Subjects: subject: Musculoskeletal system
subject: Extremities
subject: Musculoskeletal soft tissue
subject: MR
subject: Neoplasia
subject: Clinical Case

description: Clinical History: A 59-year-old woman presented with a plantar foot mass that is present for 15 years. She has a history of a tumour debulking surgery 12 years ago. The mass is painful when standing or walking.

description: 59 years, female
Nanoscale structural and electrical properties of graphene grown on AlGaN by catalyst-free chemical vapor deposition
Creators: name: Giannazzo, F.
name: Dagher, R.
name: Schilirò, E.
name: Panasci, S. E.
name: Greco, G.
name: Nicotra, G.
name: Roccaforte, F.
name: Agnello, S.
name: Brault, J.
name: Cordier, Y.
name: Michon, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The integration of graphene (Gr) with nitride semiconductors is highly interesting for applications in high-power/high-frequency electronics and optoelectronics. In this work, we demonstrated the direct growth of Gr on Al0.5Ga0.5N/sapphire templates by propane (C3H8) chemical vapor deposition (CVD) at temperature of 1350°C. After optimization of the C3H8 flow rate, a uniform and conformal Gr coverage was achieved, which proved beneficial to prevent degradation of AlGaN morphology. X-ray photoemission spectroscopy (XPS) revealed Ga loss and partial oxidation of Al in the near-surface AlGaN region. Such chemical modification of a 2 nm thick AlGaN surface region was confirmed by cross-sectional scanning transmission electron microscopy (STEM) combined with electron energy loss spectroscopy (EELS), which also showed the presence of a bilayer of Gr with partial sp2/sp3 hybridization. Raman spectra indicated that the deposited Gr is nanocrystalline (with domain size 7 nm) and compressively strained. A Gr sheet resistance of 15.8 kOhm/sq was evaluated by four-point-probe measurements, consistently with the nanocrystalline nature of these films. Furthermore, nanoscale resolution current mapping by conductive atomic force microscopy (C-AFM) indicated local variations of the Gr carrier density at a mesoscopic scale, which can be ascribed to changes in the charge transfer from the substrate due to local oxidation of AlGaN or to the presence of Gr wrinkles.
description: 20 pages, 8 figures
X-ray accretion signatures in the close CTTS binary V4046 Sgr
Creators: name: Günther, H. M.
name: Liefke, C.
name: Schmitt, J. H. M. M.
name: Robrade, J.
name: Ness, J. -U.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Chandra HETGS observations of the classical T Tauri star (CTTS) V4046 Sgr. The He-like triplets of O VII, Ne IX, and Si XIII are clearly detected. Similar to the CTTS TW Hya and BP Tau, the forbidden lines of O VII and Ne IX are weak compared to the intercombination line, indicating high plasma densities in the X-ray emitting regions. The Si XIII triplet, however, is within the low-density limit, in agreement with the predictions of the accretion funnel infall model with an additional stellar corona. V4046 Sgr is the first close binary exhibiting these features. Together with previous high-resolution X-ray data on TW Hya and BP Tau, and in contrast to T Tau, now three out of four CTTS show evidence of accretion funnels.
description: 5 pages, 5 figures
Svizzera e Italia: soluzioni di triage e medicina intensiva a confronto
Creators: name: Botti, Federica
Publisher: name: Stato, Chiese e pluralismo confessionale
Year: 2021

description: SOMMARIO: 1. Premessa - 2. La strategia elvetica per fare fronte alla pandemia e le osservazioni da parte della Conferenza Episcopale Svizzera - 3. La situazione italiana di fronte alla pandemia e le scelte in campo medico. I limiti all’autodeterminazione attraverso la proposta di introdurre l’obiezione di coscienza - 4. Conclusioni. Switzerland and Italy: triage and intensive medicine solutions in comparison ABSTRACT: Italy and Switzerland are two very different countries. This diversity is particularly evident in the health sector, not only in terms of its organization and management, but above all in the different approach that each country has with regard to the health of its members. The exaltation of therapeutic self-determination by Switzerland clashes with the medical paternalism to which Italy remains nostalgically linked, despite the fact that the needs of Italian society have changed profoundly. However, the dramatic choices to which the spread of Covid-19 has led have created the conditions for an inevitable reversal of the trend on the part of Italy and its approach to Swiss policies in terms of defending the freedom of choice of the individual.
description: Stato, Chiese e pluralismo confessionale, 2021: 15 febbraio
A Catalog of Spectroscopically Confirmed White Dwarfs from the Sloan Digital Sky Survey Data Release 4
Creators: name: Eisenstein, Daniel J.
name: Liebert, James
name: Harris, Hugh C.
name: Kleinmann, S. J.
name: Nitta, Atsuko
name: Silvestri, Nicole
name: Anderson, Scott A.
name: Barentine, J. C.
name: Brewington, Howard J.
name: Brinkmann, J.
name: Harvanek, Michael
name: Krzesinski, Jurek
name: Neilsen, Eric H.
name: Long, Dan
name: Schneider, Donald P.
name: Snedden, Stephanie A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a catalog of 9316 spectroscopically confirmed white dwarfs from the Sloan Digital Sky Survey Data Release 4. We have selected the stars through photometric cuts and spectroscopic modeling, backed up by a set of visual inspections. Roughly 6000 of the stars are new discoveries, roughly doubling the number of spectroscopically confirmed white dwarfs. We analyze the stars by performing temperature and surface gravity fits to grids of pure hydrogen and helium atmospheres. Among the rare outliers are a set of presumed helium-core DA white dwarfs with estimated masses below 0.3 Msun, including two candidates that may be the lowest masses yet found. We also present a list of 928 hot subdwarfs.
description: Accepted by the Astrophysical Journal Supplements, 25 pages, 24 figures, LaTeX. The electronic catalog, as well as diagnostic figures and links to the spectra, is available at http://das.sdss.org/wdcat/dr4/
SN 2017hpa: A Nearby Carbon-Rich Type Ia Supernova with a Large Velocity Gradient
Creators: name: Zeng, Xiangyun
name: Wang, Xiaofeng
name: Esamdin, Ali
name: Pellegrino, Craig
name: Zheng, WeiKang
name: Zhang, Jujia
name: Mo, Jun
name: Li, Wenxiong
name: Howell, D. Andrew
name: Filippenko, Alexei V.
name: Lin, Han
name: Brink, Thomas G.
name: Baron, Edward A.
name: Burke, Jamison
name: DerKacy, James M.
name: McCully, Curtis
name: Hiramatsu, Daichi
name: Hosseinzadeh, Griffin
name: Jeffers, Benjamin T.
name: Ross, Timothy W.
name: Stahl, Benjamin E.
name: Stegman, Samantha
name: Valenti, Stefano
name: Wang, Lifan
name: Xiang, Danfeng
name: Zhang, Jicheng
name: Zhang, Tianmeng
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present extensive, well-sampled optical and ultraviolet photometry and optical spectra of the Type Ia supernova (SN Ia) 2017hpa. The light curves indicate that SN 2017hpa is a normal SN Ia with an absolute peak magnitude of $M_{\rm max}^{B} \approx$ -19.12$\pm$0.11 mag and a post-peak decline rate \mb\ = 1.02$\pm$0.07 mag. According to the quasibolometric light curve, we derive a peak luminosity of 1.25$\times$10$^{43}$ erg s$^{-1}$ and a $^{56}$Ni mass of 0.63$\pm$0.02 $M_{\odot}$. The spectral evolution of SN 2017hpa is similar to that of normal SNe Ia, while it exhibits unusually rapid velocity evolution resembling that of SN 1991bg-like SNe Ia or the high-velocity subclass of SNe Ia, with a post-peak velocity gradient of $\sim$ 130$\pm$7 km s$^{-1}$ d$^{-1}$. Moreover, its early spectra ($t < -7.9$ d) show prominent \CII~$λ$6580 absorption feature, which disappeared in near-maximum-light spectra but reemerged at phases from $t \sim +8.7$ d to $t \sim +11.7$ d after maximum light. This implies that some unburned carbon may mix deep into the inner layer, and is supported by the low \CII~$λ$6580 to \SiII~$λ$6355 velocity ratio ($\sim 0.81$) observed in SN 2017hpa. The \OI~$λ$7774 line shows a velocity distribution like that of carbon. The prominent carbon feature, low velocity seen in carbon and oxygen, and large velocity gradient make SN 2017hpa stand out from other normal SNe Ia, and are more consistent with predictions from a violent merger of two white dwarfs. Detailed modelling is still needed to reveal the nature of SN 2017hpa.
title: PEO-b-PNBA in-situ functionalized mesoporous silica films and their light- and pH-controlled ionic mesopore accessibility
Creators: name: Zhao, Lucy
name: Mikolei, Joanna J.
name: Ceolin, Marcelo
name: Pardehkhorram, Raheleh
name: Czerwenka, Laura
name: Andrieu-Brunsen, Annette
Publisher: name: Elsevier
Year: 2026

description: Multistimuli-responsive, in-situ functionalized mesoporous silica films were fabricated by evaporation-induced self-assembly through physical entrapment of the functional template poly(ethylene oxide)-b-poly(2-nitrobenzyl acrylate) (PEO-b-PNBA). The light-cleavable and pH-responsive block copolymer PEO-b-PNBA simultaneously serves as structure-directing agent and for in-situ polymer functionalization of the generated mesopore space. The use of different PEO-b-PNBA compositions results in highly filled hybrid mesoporous silica films with different pore sizes, porosity, and polymer chain sequence within the mesopores. Based on these structural variations and the polymer chain sequence the ionic permselectivity of the silica-polymer hybrid thin films is adjusted. The side chains of the template PNBA block can be deprotected upon irradiation, hereby releasing pH-responsive carboxylic acid groups. The irradiation energy and irradiation time-dependent deprotection allows gradually controlled charge regulation in mesopores. This approach of in-situ functionalization using multistimuli-responsive PEO-b-PNBA block copolymers facilitates the fabrication of multi-responsive hybrid mesoporous silica films and bears high potential for the production of complex, hierarchical, multifunctional mesoporous materials. This fabrication method including direct functionalization of mesoporous structures is of high interest for many applications based on controlled molecular transport in nanoscale pores, such as sensing, separation, or catalysis.
Geometric phase in open systems: beyond the Markov approximation and weak coupling limit
Creators: name: Yi, X. X.
name: Tong, D. M.
name: Wang, L. C.
name: Kwek, L. C.
name: OH, C. H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Beyond the quantum Markov approximation and the weak coupling limit, we present a general theory to calculate the geometric phase for open systems with and without conserved energy. As an example, the geometric phase for a two-level system coupling both dephasingly and dissipatively to its environment is calculated. Comparison with the results from quantum trajectory analysis is presented and discussed.
Ergodic Subequivalence Relations Induced by a Bernoulli Action
Creators: name: Chifan, Ionut
name: Ioana, Adrian
Publisher: name: arXiv
Year: 2008
Subjects: subject: Dynamical Systems (math.DS)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 37A20, 37A15

description: Let $Γ$ be a countable group and denote by $\Cal S$ the equivalence relation induced by the Bernoulli action $Γ\curvearrowright [0,1]^Γ$, where $[0,1]^Γ$ is endowed with the product Lebesgue measure. We prove that for any subequivalence relation $\Cal R$ of $\Cal S$, there exists a partition $\{X_i\}_{i\geq 0}$ of $[0,1]^Γ$ with $\Cal R$-invariant measurable sets such that $\Cal R_{|X_0}$ is hyperfinite and $\Cal R_{|X_i}$ is strongly ergodic (hence ergodic), for every $i\geq 1$.
description: 16 pages
Universal Dephasing Noise Injection via Schrodinger Wave Autoregressive Moving Average Models
Creators: name: Murphy, Andrew
name: Epstein, Jacob
name: Quiroz, Gregory
name: Schultz, Kevin
name: Tewala, Lina
name: McElroy, Kyle
name: Trout, Colin
name: Tien-Street, Brian
name: Hoffmann, Joan A.
name: Clader, B. D.
name: Long, Junling
name: Pappas, David P.
name: Sweeney, Timothy M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present and validate a novel method for noise injection of arbitrary spectra in quantum circuits that can be applied to any system capable of executing arbitrary single qubit rotations, including cloud-based quantum processors. As the consequences of temporally-correlated noise on the performance of quantum algorithms are not well understood, the capability to engineer and inject such noise in quantum systems is paramount. To date, noise injection capabilities have been limited and highly platform specific, requiring low-level access to control hardware. We experimentally validate our universal method by comparing to a direct hardware-based noise-injection scheme, using a combination of quantum noise spectroscopy and classical signal analysis to show that the two approaches agree. These results showcase a highly versatile method for noise injection that can be utilized by theoretical and experimental researchers to verify, evaluate, and improve quantum characterization protocols and quantum algorithms for sensing and computing.
description: 8 pages, 6 figures. Updated References
MPEC 2024-A35 : 2024 AN
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 AN

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Eterodossia e minoranze religiose: il Tardo Antico, al termine di un lungo percorso
Creators: name: Banfi, Antonio
Publisher: name: Stato, Chiese e pluralismo confessionale
Year: 2021

description: SOMMARIO: 1. Premessa - 2. L’esperienza “classica”: Atene - 3. L’esperienza “classica”: Roma - 4. Il IV secolo fra continuità e rotture. Heterodoxy and religious minorities. Late Antiquity, at the end of a long journey ABSTRACT: This paper aims to encourage some reflections on the issue of the origins of religious intolerance and on the issues related to the treatment of minorities in Greek and Roman antiquity. In particular, a significant moment in this affair, destined to have prolonged effects, is constituted by the anti-Jewish revolts in Alexandria, in the mid-first century. A.D.
description: Stato, Chiese e pluralismo confessionale, 2021: 15 febbraio
Implementing a Unification Algorithm for Protocol Analysis with XOR
Creators: name: Tuengerthal, Max
name: Kuesters, Ralf
name: Turuani, Mathieu
Publisher: name: arXiv
Year: 2006
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: In this paper, we propose a unification algorithm for the theory $E$ which combines unification algorithms for $E\_{\std}$ and $E\_{\ACUN}$ (ACUN properties, like XOR) but compared to the more general combination methods uses specific properties of the equational theories for further optimizations. Our optimizations drastically reduce the number of non-deterministic choices, in particular those for variable identification and linear orderings. This is important for reducing both the runtime of the unification algorithm and the number of unifiers in the complete set of unifiers. We emphasize that obtaining a ``small'' set of unifiers is essential for the efficiency of the constraint solving procedure within which the unification algorithm is used. The method is implemented in the CL-Atse tool for security protocol analysis.
Heralding multiple photonic pulsed Bell-pairs via frequency-resolved entanglement swapping
Creators: name: Merkouche, Sofiane
name: Thiel, Valérian
name: Davis, Alex O. C.
name: Smith, Brian J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entanglement is a unique property of quantum systems and an essential resource for many quantum technologies. The ability to transfer or swap entanglement between systems is an important protocol in quantum information science. Entanglement between photons forms the basis of distributed quantum networks and the demonstration of photonic entanglement swapping is essential for their realization. Here an experiment demonstrating entanglement swapping from two independent multimode time-frequency entangled sources is presented, resulting in multiple heralded temporal-mode Bell states. Entanglement in the heralded states is verified by measuring conditional anti-correlated joint spectra as well as quantum beating in two-photon interference. Our proof-of-concept experiment is able to distinguish up to five orthogonal Bell pairs within the same setup, limited in principle only by the entanglement of the sources.
Exploring the Design Space of Lunar GNSS in Frozen Orbit Conditions
Creators: name: Pereira, Filipe
name: Selva, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: The past decade has witnessed a growing interest in lunar exploration missions. The autonomy of lunar surface and in-orbit missions is, however, dependent on accurate and instantaneous navigation services. These services can not be provided by current Global Navigation Satellite Systems (GNSS) whose signals suffer from poor geometry and coverage in the vicinity of the Moon. Preliminary results of a systems architecture study on a new satellite navigation system orbiting the moon are presented. Lunar frozen orbit conditions under J2, C22 and third-body perturbations are assumed. The formulation includes the following design decisions: (1) Orbit semi-major axis, (2) Number of satellites, (3) Number of orbital planes, (4) Satellite phasing in adjacent planes, (5) Orbit eccentricity and (6) Argument of periapsis.The Borg Multi-Objective Evolutionary Algorithm (MOEA) framework is used to optimize the satellite constellation design problem, with a fitness function that takes into account performance, cost, availability and station-keeping deltaV. The performance metric is based on the Geometric Dilution of Precision (GDOP), which is computed over a grid of 500 equidistant points on the lunar surface. Additionally, the input satellite orbits used in the GDOP computation are obtained from high-fidelity orbit propagation using NASA General Mission Analysis Toolbox. Finally, satellite costs are based on satellite dry mass estimates derived from the power budget analysis assuming a satellite lifetime of 10 years. Results show that Lunar GNSS constellation with 20 satellites at frozen orbits can achieve satisfactory performance at mid-latitudes but not at the poles.
description: 8 pages, 6 figures
A High-Contrast Search for Variability in HR 8799bc with VLT-SPHERE
Creators: name: Biller, B. A.
name: Apai, D.
name: Bonnefoy, M.
name: Desidera, S.
name: Gratton, R.
name: Kasper, M.
name: Kenworthy, M.
name: Lagrange, A. M.
name: Lazzoni, C.
name: Mesa, D.
name: Vigan, A.
name: Wagner, K.
name: Vos, J. M.
name: Zurlo, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The planets HR8799bc display nearly identical colours and spectra as variable young exoplanet analogues such as VHS 1256-1257ABb and PSO J318.5-22, and are likely to be similarly variable. Here we present results from a 5-epoch SPHERE IRDIS broadband-$H$ search for variability in these two planets. HR 8799b aperture photometry and HR 8799bc negative simulated planet photometry share similar trends within uncertainties. Satellite spot lightcurves share the same trends as the planet lightcurves in the August 2018 epochs, but diverge in the October 2017 epochs. We consider $Δ(mag)_{b} - Δ(mag)_{c}$ to trace non-shared variations between the two planets, and rule out non-shared variability in $Δ(mag)_{b} - Δ(mag)_{c}$ to the 10-20$\%$ level over 4-5 hours. To quantify our sensitivity to variability, we simulate variable lightcurves by inserting and retrieving a suite of simulated planets at similar radii from the star as HR 8799bc, but offset in position angle. For HR 8799b, for periods $5\%$. For HR 8799c, our sensitivity is limited to variability $>25\%$ for similar periods.
description: 41 pages, 24 figures, accepted to MNRAS
A Microcontroller-based Wireless Optical pH Sensor
Creators: name: Vuppu, Sandeep
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: pH sensor
microcontroller
fluorescence
optical sensor
portable instrument
Engineering, Electronics and Electrical (0544)

description: The development and application of a portable, wireless fluorescence-based optical pH sensor system is presented. The design incorporates the MSP430 microcontroller as the control unit, an RF transceiver for wireless communication, digital filters and amplifiers, and a USB based communication module for data transmission. The pH sensor is based on ratiometric fluorescence detection from 6-methacryloyl-8-hydroxy-1,3-pyrene disulfonic acid (MA-HPDS) sensor patch. The ability of the sensor patch to detect the pH of the solution without physical contact makes the instrument inherently non-invasive. The sensor system also has the ability to transmit data wirelessly, enabling its use in processes that entail stringent temperature control and sterility. The use of the microcontroller makes the system a reliable, low-cost, and low-power device. The luminous intensity of the light source can be digitally controlled to maximize the sensitivity of the system. The sensor system is accurate and reversible over the pH range of 6-9 with an average response time of less than 3 minutes and has a detection limit of 0.05 pH.
System for Real Time Optical Tracking and Analysis of Rattus Paws
Creators: name: Biskach, Michael Patrick
Publisher: name: Maryland Shared Open Access Repository
Year: 2010
Subjects: Gait
Locomotion
Neuromuscular Disease
Paw
Rattus
Tracking

description: An existing gait analysis system designed to quantify the locomotion characteristics of rats and calculate the extent to which the gait of the rat is affected by neuromuscular disease or injury is significantly improved through the correlation of automatic paw tracking via live video analysis and the synchronization of load cell signals representing ground reaction forces in all three Cartesian directions. A time consuming data conversion and synchronization procedure for clinical trials with a sample size greater than 10 is replaced with software capable of automatic processing of both video footage and load cell signal voltage. Video analysis is performed in real time that consists of calculating timing information which allows load cell information to be isolated for each paw leading to individual limb ground reaction force curves. A new paw illumination system consisting of illumination LEDs installed on the side of clear acrylic floor panels helped to contrast paws with the background during periods of paw contact with the floor which reflects light to the video camera positioned directly beneath the clear platform. The increased paw to background contrast allows for more effective separation and tracking of individual paws. To increase the data collection process efficiency a new gait measurement platform was designed to measure the gait of the rat as it traverses a platform in both directions. Programmable food access and lights are used to control rat movement while minimal manual labor is required to operate the system. Rat handling, measurement duration, and operating difficulty are reduced to a level where more than a dozen rats are can be accommodated during a trial. This new bi-directional design coupled with streamlined data processing leads to a more efficient gait analysis system capable of measuring more rat runs per trial and therefore potentially increasing the amount of knowledge gained that relates to alleviating symptoms of human neuromuscular diseases as modeled in rats.
รูปแบบและลักษณะเฉพาะดนตรีประกอบการแสดง เรื่องรามเกียรติ์ ตอน นิ้วเพชร สู่การสร้างสรรค์เพลงไทยร่วมสมัย
Creators: name: เศรษฐวุฒิ ปัญญวัตวงศ์
Publisher: name: บัณฑิตศึกษา สถาบันบัณฑิตพัฒนศิลป์ กระทรวงวัฒนธรรม
Year: 2023
Subjects: รามเกียรติ์
นิ้วเพชร
การสร้างสรรค์เพลงไทยร่วมสมัย
ดนตรีประกอบการแสดง

description: วิพิธพัฒนศิลป์, 3, 3, 32-48