cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Haprolid inhibits tumor growth of hepatocellular carcinoma through Rb/E2F and Akt/mTOR inhibition
Creators: name: Xing, Jun
name: Bhuria, Vikas
name: Bui, Khac Cuong
name: Nguyen, Mai Ly Thi
name: Hu, Zexi
name: Hsieh, Chih-Jen
name: Wittstein, Kathrin
name: Stadler, Marc
name: Wilkens, Ludwig
name: Li, Jun
name: Kalesse, Markus
name: Bozko, Przemyslaw
name: Plentz, Ruben R.
Publisher: name: Basel : MDPI
Year: 2020
Subjects: subject: hepatocellular carcinoma (HCC)
subject: haprolid
subject: antitumor effect
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Background: Hepatocellular carcinoma (HCC) represents a major health burden with limited curative treatment options. There is a substantial unmet need to develop innovative approaches to impact the progression of advanced HCC. Haprolid is a novel natural component isolated from myxobacteria. Haprolid has been reported as a potent selective cytotoxin against a panel of tumor cells in recent studies including HCC cells. The aims of this study are to evaluate the antitumor effect of haprolid in HCC and to understand its underlying molecular mechanisms. Methods: The efficacy of haprolid was evaluated in human HCC cell lines (Huh-7, Hep3B and HepG2) and xenograft tumors (NMRI-Foxn1nu mice with injection of Hep3B cells). Cytotoxic activity of haprolid was determined by the WST-1 and crystal violet assay. Wound healing, transwell and tumorsphere assays were performed to investigate migration and invasion of HCC cells. Apoptosis and cell-cycle distribution were measured by flow cytometry. The effects of haprolid on the Rb/E2F and Akt/mTOR pathway were examined by immunoblotting and immunohistochemistry. Results: haprolid treatment significantly inhibited cell proliferation, migration and invasion in vitro. The epithelial–mesenchymal transition (EMT) was impaired by haprolid treatment and the expression level of N-cadherin, vimentin and Snail was downregulated. Moreover, growth of HCC cells in vitro was suppressed by inhibition of G1/S transition, and partially by induction of apoptosis. The drug induced downregulation of cell cycle regulatory proteins cyclin A, cyclin B and CDK2 and induced upregulation of p21 and p27. Further evidence showed that these effects of haprolid were associated with Rb/E2F downregulation and Akt/mTOR inhibition. Finally, in vivo nude mice experiments demonstrated significant inhibition of tumor growth upon haprolid treatment. Conclusion: Our results show that haprolid inhibits the growth of HCC through dual inhibition of Rb/E2F and Akt/mTOR pathways. Therefore, haprolid might be considered as a new and promising candidate for the palliative therapy of HCC. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Carex rostrata Stokes
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. rostrata Stokes (C. ampullacea Good., C. inflata Rendle et Britten) Cat. 374. Bis 2300 m. l: Salanfe (Coquoz); Barberine (Exk. Soc.Murith.); Vieux-Emosson (desgl.); Arpille (F., Pfister); Dorenaz (Garns). - 2: Zwischen Naters-Bitsch und Geimen (Becherer, Thommen und Zwicky). - 3: Unter Chanrion, 2300m (R. Chodat); Bonigersee ob Törbel, 2100m (Stebler); Saas-Fee, 1810m (J.). - 3a: Unter Engeloch (Becherer); Silva und südwestlich«Zum Kämi» auf Alpien (idem). - 4: Aletschwald (Lüdi).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Great Location: About Effects of Surface Bound Neighboring Groups for Passive and Active Fine-Tuning of CO2 Adsorption Properties in Model Carbon Capture Materials
Creators: name: Klinkenberg, Nele
name: Kraft, Sophia
name: Polarz, Sebastian
Publisher: name: Weinheim : Wiley-VCH
Year: 2021
Subjects: subject: carbon capture
subject: carbon dioxide activation
subject: organic–inorganic hybrids
subject: porous materials
subject: surface design
subject: Adsorption
subject: Binding energy
subject: Carbon capture
subject: Nuclear magnetic resonance spectroscopy
subject: Silica
subject: Adsorption capacities
subject: Binding properties
subject: Click chemistry
subject: Conventional approach
subject: Direct interactions
subject: Heat of adsorption
subject: Molecular environment
subject: Solid state NMR
subject: Carbon dioxide
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: Improved carbon capture materials are crucial for managing the CO2 level in the atmosphere. The past focus was on increasing adsorption capacities. It is widely known that controlling the heat of adsorption (ΔHads) is equally important. If it is too low, CO2 uptake takes place at unfavorable conditions and with insufficient selectivity. If it is too high, chemisorption occurs, and the materials can hardly be regenerated. The conventional approach for influencing ΔHads is the modification of the adsorbing center. This paper proposes an alternative strategy. The hypothesis is that fine-tuning of the molecular environment around the adsorbing center is a powerful tool for the adjustment of CO2-binding properties. Via click chemistry, any desired neighboring group (NG) can be incorporated on the surfaces of the nanoporous organosilica model materials. Passive NGs induce a change in the polarity of the surface, whereas active NGs are capable of direct interaction with the active center/CO2 pair. The effects on ΔHads and on the selectivity are studied. A situation can be realized which resembles frustrated Lewis acid–base pairs, and the investigation of the binding-species by solid-state NMR indicates that the push–pull effects could play an essential role not only in CO2 adsorption but also in its activation. © 2021 The Authors. Advanced Materials published by Wiley-VCH GmbH
Rapid solidification of Earth's magma ocean limits early lunar recession
Creators: name: Korenaga, Jun
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The early evolution of the Earth-Moon system prescribes the tidal environment of the Hadean Earth and holds the key to the formation mechanism of the Moon and its thermal evolution. Estimating its early state by backtracking from the present, however, suffers from substantial uncertainties associated with ocean tides. Tidal evolution during the solidification of Earth's magma ocean, on the other hand, has the potential to provide robust constraints on the Earth-Moon system before the appearance of a water ocean. Here we show that energy dissipation in a solidifying magma ocean results in considerably more limited lunar recession than previously thought, and that the Moon was probably still at the distance of $\sim$7-9 Earth radii at the end of solidification. This limited early recession aggravates the often overlooked difficulty of modeling tidal dissipation in Earth's first billion years, but it also offers a new possibility of resolving the lunar inclination problem by allowing the operation of multiple excitation mechanisms.
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 11 (7)]
Creators: name: Girardus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1252
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Girardus aus Mailand, Sohn des verstorbenen Guazinus de Oprino, versichert dem Beltramus, Sohn des verstorbenen Algexius Scacabarozius, und dem Roaxius Scacabarozius, beide ebenfalls wohnhaft in Mailand an der porta Vercellane, dass er Petra, Tochter des Mons Scacabarozius, zur Frau nehmen werde.
Russeting in apple is initiated after exposure to moisture ends: Molecular and biochemical evidence
Creators: name: Straube, Jannis
name: Chen, Yun-Hao
name: Khanal, Bishnu P.
name: Shumbusho, Alain
name: Zeisler-Diehl, Viktoria
name: Suresh, Kiran
name: Schreiber, Lukas
name: Knoche, Moritz
name: Debener, Thomas
Publisher: name: Basel : MDPI AG
Year: 2021
Subjects: subject: Cuticle
subject: Cutin
subject: Malus × domestica
subject: Periderm
subject: Russet
subject: Suberin
subject: Wax
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)

description: Exposure of the fruit surface to moisture during early development is causal in russeting of apple (Malus × domestica Borkh.). Moisture exposure results in formation of microcracks and de-creased cuticle thickness. Periderm differentiation begins in the hypodermis, but only after discon-tinuation of moisture exposure. Expressions of selected genes involved in cutin, wax and suberin synthesis were quantified, as were the wax, cutin and suberin compositions. Experiments were con-ducted in two phases. In Phase I (31 days after full bloom) the fruit surface was exposed to moisture for 6 or 12 d. Phase II was after moisture exposure had been discontinued. Unexposed areas on the same fruit served as unexposed controls. During Phase I, cutin and wax synthesis genes were down-regulated only in the moisture-exposed patches. During Phase II, suberin synthesis genes were up-regulated only in the moisture-exposed patches. The expressions of cutin and wax genes in the moisture-exposed patches increased slightly during Phase II, but the levels of expression were much lower than in the control patches. Amounts and compositions of cutin, wax and suberin were con-sistent with the gene expressions. Thus, moisture-induced russet is a two-step process: moisture exposure reduces cutin and wax synthesis, moisture removal triggers suberin synthesis. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
A Spatial Characterization of the Sagittarius Dwarf Galaxy Tidal Tails
Creators: name: Newby, Matthew
name: Cole, Nathan
name: Newberg, Heidi Jo
name: Desell, Travis
name: Magdon-Ismail, Malik
name: Szymanski, Boleslaw
name: Varela, Carlos
name: Willett, Benjamin
name: Yanny, Brian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We measure the spatial density of F turnoff stars in the Sagittarius dwarf tidal stream, from Sloan Digital Sky Survey (SDSS) data, using statistical photometric parallax. We find a set of continuous, consistent parameters that describe the leading Sgr stream's position, direction, and width for 15 stripes in the North Galactic Cap, and 3 stripes in the South Galactic Cap. We produce a catalog of stars that has the density characteristics of the dominant leading Sgr tidal stream that can be compared with simulations. We find that the width of the leading (North) tidal tail is consistent with recent triaxial and axisymmetric halo model simulations. The density along the stream is roughly consistent common disruption models in the North, but possibly not in the South. We explore the possibility that one or more of the dominant Sgr streams has been mis-identified, and that one or more of the `bifurcated' pieces is the real Sgr tidal tail, but we do not reach definite conclusions. If two dwarf progenitors are assumed, fits to the planes of the dominant and `bifurcated' tidal tails favor an association of the Sgr dwarf spheroidal galaxy with the dominant Southern stream and the `bifurcated' stream in the North. In the North Galactic Cap, the best fit Hernquist density profile for the smooth component of the stellar halo is oblate, with a flattening parameter q = 0.53, and a scale length of r_0 = 6.73. The Southern data for both the tidal debris and the smooth component of the stellar halo do not match the model fits to the North, although the stellar halo is still overwhelmingly oblate. Finally, we verify that we can reproduce the parameter fits on the asynchronous Milkyway@home volunteer computing platform.
description: 35 pages, 8 figures, 9 tables. Accepted for publication in The Astrophysical Journal
Charge quenching at defect states in transition metal dichalcogenide–graphene van der Waals heterobilayers
Creators: name: Hernangómez-Pérez, Daniel
name: Donarini, Andrea
name: Refaely-Abramson, Sivan
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: DefectsSpin-orbit couplingTransport phenomena, Physical Systems, 2-dimensional systems, Graphene, Transition metal dichalcogenides, Techniques, Density functional theory, Density matrix, methods, Discrete symmetries in condensed matter, First-principles calculations, Many-body techniques, Quantum master equation, Tight-binding model
subject: 530 Physik

description: We study the dynamical properties of pointlike defects, represented by monoatomic chalcogen vacancies, in WS2–graphene and MoS2–graphene heterobilayers. Employing a multidisciplinary approach based on the combination of ab initio, model Hamiltonian and density matrix techniques, we propose a minimal interacting model that allows for the calculation of electronic transition times associated to population and depopulation of the vacancy by an additional electron. We obtain the “coarse-grained” semiclassical dynamics by means of a quantum master equation approach and discuss the potential role of virtual charge fluctuations in the internal dynamics of impurity quasidegenerate states. The interplay between the symmetry of the lattice and the spin degree of freedom through the spin-orbit interaction and its impact on charge quenching is studied in detail.
The nature of chlorine-inhibition of photocatalytic degradation of dichloroacetic acid in a TiO2-based microreactor
Creators: name: Krivec, M.
name: Dillert, Ralf
name: Bahnemann, Detlef W.
name: Mehle, A.
name: Strancar, J.
name: Drazic, G.
Publisher: name: Cambridge : Royal Society of Chemistry
Year: 2014
Subjects: subject: rate enhancement
subject: inorganic-ions
subject: tio2
subject: oxidation
subject: radicals
subject: reactor
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Photocatalytic degradation of dichloroacetic acid (DCA) was studied in a continuous-flow set-up using a titanium microreactor with an immobilized double-layered TiO2 nanoparticle/nanotube film. Chloride ions, formed during the degradation process, negatively affect the photocatalytic efficiency and at a certain concentration (approximately 0.5 mM) completely stop the reaction in the microreactor. Two proposed mechanisms of inhibition with chloride ions, competitive adsorption and photogenerated-hole scavenging, have been proposed and investigated by adsorption isotherms and electron paramagnetic resonance (EPR) measurements. The results show that chloride ions block the DCA adsorption sites on the titania surface and reduce the amount of adsorbed DCA molecules. The scavenging effect of chloride ions during photocatalysis through the formation of chlorine radicals was not detected.
title: ПРИЧИНЫ ИЗМЕНЕНИЯ ЛИБО ОТМЕНЫ СУДЕБНЫХ РЕШЕНИЙ В ОТНОШЕНИИ УСТАНОВЛЕНИЯ ЗЕМЕЛЬНЫХ СЕРВИТУТОВ
Creators: name: Флик, Яна
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В данной статье проанализированы основания, по которым отменяются либо изменяются решения вынесенные судами первой инстанции при рассмотрении гражданских дел об установлении земельного сервитута, а также причины отказа в принятии искового заявления в установлении сервитута. Анализируется обзор судебной практики за 2017 год.
title: ДЕЙСТВИЕ И БЕЗДЕЙСТВИЕ АРБИТРАЖНЫХ УПРАВЛЯЮЩИХ ВОПРЕКИ ЗАКОНА
Creators: name: Фомин, Ефим
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Статья посвящена проблемам института банкротства юридических лиц, с которыми сталкиваются кредиторы в делах о банкротстве. Автор изучает практику ведения дел о банкротстве арбитражными управляющими, приводит примеры, указывает на проблемы и пути их решения.
Atmospheric components and dopant carry-over influence during laser ablation
Creators: name: Schütz, Viktor
name: Haupt, Oliver
name: Stute, Uwe
Publisher: name: London : Elsevier Ltd.
Year: 2011
Subjects: subject: Atmospheric components
subject: Dopant carry-over
subject: Laser ablation
subject: Ablation
subject: Crystalline materials
subject: Silicon
subject: Silicon solar cells
subject: Solar cells
subject: Dopant concentrations
subject: Edge isolation
subject: Non-contact
subject: Scanning parameters
subject: Shunt resistances
subject: Various atmosphere
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit
subject: Dewey Decimal Classification::600 | Technik

description: In order to improve the efficiency of multi-crystalline (mc)-silicon solar cells, laser ablation as a non-contact tool is highly suitable for various processes. Apart from the laser and scanning parameters frequently reported in the literature, other factors exist upon which the observable results of laser ablation depend. In addition to laser and scanning parameters, the influence of various atmospheres on the laser ablation process is investigated in this work. The laser edge isolation process is used to demonstrate these effects. The impact on the dopant concentration in the generated laser groove is investigated using the shunt resistance of the solar cells. From these investigations the most suitable laser is determined as well as ambient parameters for the ablation of mc-silicon.
Liquid crystal-enabled electrophoresis of spheres in a nematic medium with negative dielectric anisotropy
Creators: name: Lazo, Israel
name: Lavrentovich, Oleg D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We describe electrophoresis of spherical dielectric particles in a uniformly aligned nematic medium with a negative dielectric anisotropy. A spherical particle that orients the liquid crystal (LC) perpendicularly to its surface moves under the application of the uniform direct current (DC) or alternating current (AC) electric field. The electric field causes no distortions of the LC director far away from the sphere. Electrophoresis in the nematic LC shows two types of nonlinearity in the velocity vs. field dependence. The velocity component parallel to the applied electric field grows linearly with the field, but when the field is high enough, it also shows a cubic dependence. The most interesting is the second type of nonlinear electrophoresis that causes the sphere to move perpendicularly to the applied field. This perpendicular component of velocity is proportional to the square of the field. The effect exists only in a LC and disappears when the material is melted into an isotropic fluid. The quadratic effect is caused by the dipolar symmetry of director distortions around the sphere and is classified as an LC-enabled electrophoresis (LCEEP). The nonlinear electrophoretic mobility of particles in LCEEP offers a rich variety of control parameters to design 3D trajectories of particles for microfluidic and optofluidic applications.
description: 9 pages, 6 figures
title: ПРАВОЗАЩИТНАЯ ДЕЯТЕЛЬНОСТЬ УПОЛНОМОЧЕННОГО ПО ПРАВАМ ЧЕЛОВЕКА В НОВГОРОДСКОЙ ОБЛАСТИ
Creators: name: Хасуев, Руслан
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В статье анализируется деятельность Уполномоченного по правам человека в Новгородской области по рассмотрению обращений граждан и мониторингу соблюдения прав и свобод человека на территории Новгородской области.
Theory of wetting-induced fluid entrainment by advancing contact lines on dry surfaces
Creators: name: Ledesma-Aguilar, Rodrigo
name: Hernández-Machado, Aurora
name: Pagonabarraga, Ignacio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We report on the onset of fluid entrainment when a contact line is forced to advance over a dry solid of arbitrary wettability. We show that entrainment occurs at a critical advancing speed beyond which the balance between capillary, viscous and contact line forces sustaining the shape of the interface is no longer satisfied. Wetting couples to the hydrodynamics by setting both the morphology of the interface at small scales and the viscous friction of the front. We find that the critical deformation that the interface can sustain is controlled by the friction at the contact line and the viscosity contrast between the displacing and displaced fluids, leading to a rich variety of wetting-entrainment regimes. We discuss the potential use of our theory to measure contact-line forces using atomic force microscopy, and to study entrainment under microfluidic conditions exploiting colloid-polymer fluids of ultra-low surface tension.
description: 5 pages, 4 figures
Microwave-accelerated Mizoroki-Heck and Sonogashira cross- coupling reactions in water using a heterogeneous palladium(II)-precatalyst
Creators: name: Dawood, Kamal M.
name: Solodenko, Wladimir
name: Kirschning, Andreas
Publisher: name: s.L. : Arkat USA, Inc.
Year: 2007
Subjects: subject: Catalysis
subject: immobilization
subject: microwave
subject: Mizoroki-Heck reaction
subject: palladium
subject: Sonogashira reaction
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: The catalytic activity of a 2-pyridinealdoxime-based Pd(II)-complex covalently anchored via the oxime moiety to a glass/ polymer composite material was evaluated both under thermal as well as microwave (μw) irradiating conditions in water in Mizoroki-Heck as well as Sonogashira C-C cross-coupling reactions. Synthesis of benzo[b]furan derivatives via Sonogashira cross coupling reaction was achieved when ortho-halo-phenols were employed as aryl halides. The stability and reusability of this Pd-precatalyst was part of the present study.
Laser-Surface-Treatment for Photovoltaic Applications
Creators: name: Horn, Alexander
name: Kalmbach, Cay-Christian
name: González Moreno, Javier
name: Schütz, Viktor
name: Stute, Uwe
name: Overmeyer, Ludger
Publisher: name: Amsterdam : Elsevier
Year: 2012
Subjects: subject: Laser ablation
subject: Process parallelization
subject: Patterning
subject: Thin films
subject: TCO
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: To increas the overall efficiency of photovoltaic systems, such as solar cells or modules, different laser surface treatments have been adopted. In this article laser processing is applied to reduce the reflectivity on silicon solar cells, to reduce structure sizes for patterning processes applied for thin film solar modules, and to improve the opto- electrical properties of front-contact cathodes for thin-film solar modules.
Microwave-accelerated Mizoroki-Heck and Sonogashira cross- coupling reactions in water using a heterogeneous palladium(II)-precatalyst
Creators: name: Dawood, Kamal M.
name: Solodenko, Wladimir
name: Kirschning, Andreas
Publisher: name: s.L. : Arkat USA, Inc.
Year: 2007
Subjects: subject: Catalysis
subject: Immobilization
subject: Microwave
subject: Mizoroki-Heck reaction
subject: Palladium
subject: Sonogashira reaction
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: The catalytic activity of a 2-pyridinealdoxime-based Pd(II)-complex covalently anchored via the oxime moiety to a glass/ polymer composite material was evaluated both under thermal as well as microwave (μw) irradiating conditions in water in Mizoroki-Heck as well as Sonogashira C-C cross-coupling reactions. Synthesis of benzo[b]furan derivatives via Sonogashira cross coupling reaction was achieved when ortho-halo-phenols were employed as aryl halides. The stability and reusability of this Pd-precatalyst was part of the present study. ©ARKAT USA, Inc.
Laser-based approach for bonded repair of carbon fiber reinforced plastics
Creators: name: Völkermeyer, Frank
name: Fischer, Fabian
name: Stute, Uwe
name: Kracht, Dietmar
Publisher: name: Amsterdam : Elsevier B.V.
Year: 2011
Subjects: subject: Bonded repair
subject: Laser-machining
subject: Selective matrix removal
subject: Carbon
subject: Fiber reinforced plastics
subject: Manufacture
subject: Pulsed lasers
subject: Reinforced plastics
subject: Reinforcement
subject: Repair
subject: Shear stress
subject: Ablation depth
subject: Bonded repairs
subject: Laser machining
subject: Material strength
subject: Number of cycles
subject: Process parameters
subject: Shear strength testing
subject: Carbon fiber reinforced plastics
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: This paper describes a laser-based approach for the bonded repair of fiber reinforced plastic (CFRP) parts. According to CFRP's material properties and sensitivity to thermal loads, short pulsed UV laser radiation is deployed to realize a precise ply by ply removal for preparation of the repair geometry. The influence of different process parameters like hatch distance and number of cycles on the ablation depth and throughput is discussed. Finally, a full shear strength testing conformable to DIN 65148 is successfully conducted and demonstrates a maximum of material strength combined with a significant drop in total process time.
Dual and anti-dual modes in dielectric spheres
Creators: name: Zambrana-Puyalto, Xavier
name: Vidal, Xavier
name: Juan, Mathieu L.
name: Molina-Terriza, Gabriel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present how the angular momentum of light can play an important role to induce a dual or anti-dual behaviour on a dielectric particle. Although the material the particle is made of is not dual, i.e. a dielectric does not interact with an electrical field in the same way as it does with a magnetic one, a spherical particle can behave as a dual system when the correct excitation beam is chosen. We study the conditions under which this induced dual or anti-dual behaviour can be induced.
description: 13 pages, 5 figures
Fractal growth of ZrO2 nanoparticles induced by synthesis conditions
Creators: name: Stolzenburg, P.
name: Freytag, Axel
name: Bigall, Nadja C.
name: Garnweitner, G.
Publisher: name: Cambridge : Royal Society of Chemistry
Year: 2016
Subjects: subject: ZrO2
subject: nanoparticles
subject: fractal growth
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Strong changes in morphology and phase composition of zirconia nanoparticles can be induced by altering the growth conditions during nanoparticle synthesis. Here, we demonstrate that fractal ZrO2 nanocrystals showing high specific surface area can be obtained in the nonaqueous synthesis by variation of temperature and precursor concentration. The growth process was studied in detail revealing a size increase from 2.7 to 7 nm as well as a change in the polymorphic composition from tetragonal to monoclinic zirconia. TEM measurements of samples withdrawn over the course of the synthesis showed that particles grow from roundish to dendritic shapes during the phase transformation. In contrast to the common assumption that the phase transition is controlled by thermodynamics, our data shows that the transition is rather governed by kinetics. © The Royal Society of Chemistry 2016.
Drawing School Segregation: Racial and Ethnic Imbalances between American Public School Districts' Attendance Zones
Creators: name: Caffrey-Maffei, Lucy
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: subject: school segregation
subject: integration
subject: desegregation
subject: attendance zone

description: The United States school system has been historically and infamously racially segregated. That is
due, in part, to school districts' enrollment and school assignment policies, which often rely upon
residential arrangements. In particular, districts tend to spatially divide their jurisdiction into a set
of geographic spaces called attendance zones (AZs) and assign all same-aged students who live
within a given AZ to attend school together. The present study uses geographic information
science (GIS) methods to develop a measure of the racial/ethnic segregation between American
public school districts’ AZs. It also uses hierarchical linear modeling to estimate temporal and
descriptive trends in inter-AZ segregation across the nation between six school years between
1999-2000 and 2015-2016. I find that racial/ethnic segregation between districts’ attendance
zones decreased between the 1999-2000 and 2009-10 school years. The magnitude of that
decrease is larger in districts with more attendance zones. Further, I find a lack of evidence to
suggest that inter-AZ segregation varies between districts actively under court-ordered
desegregation plans and those that were either released from or never under desegregation plans.
Through this analysis, I contribute to the field a longitudinal account of the way in which school
segregation has evolved since a few pivotal court rulings in the 1990s and 2000s compromised
the ways in which schools and school districts were able to go about facilitating racial
integration. I also lay bare the direct role districts, by way of school assignment policies, have in
destining racial/ethnic segregation in their schools.
Device-independent quantum key distribution with spin-coupled cavities
Creators: name: Máttar, Alejandro
name: Brask, Jonatan Bohr
name: Acín, Antonio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Device-independent quantum key distribution (DIQKD) guarantees the security of a shared key without any assumptions on the apparatus used, provided that the observed data violate a Bell inequality. Such violation is challenging experimentally due to channel losses and photo-detection inefficiencies. Here we describe a realistic DIQKD protocol based on interaction between light and spins stored in cavities, which allows a heralded mapping of polarisation entanglement of light onto the spin. The spin state can subsequently be measured with near unit efficiency. Heralding alleviates the effect of channel loss, and as the protocol allows for local heralding, the spin decay is not affected by the communication time between the parties, making Bell inequality violation over an arbitrary distance possible. We compute the achievable key rates of the protocol, based on recent estimates of experimentally accessible parameter values and compare to the other known DIQKD protocol, which is entirely optical. We find significant improvements in terms of key bits per source use. For example we gain about five orders of magnitude over a distance of 75km, for realistic parameter values.
description: 5 pages, 3 figures
Towards virtual plant modelling as a tool in climate change impact research
Creators: name: Kahlen, Katrin
name: Zinkernagel, Jana
name: Chen, Tsu-Wei
Publisher: name: Amsterdam : Elsevier
Year: 2015
Subjects: subject: functional-structural plant model
subject: plant architecture
subject: canopy photosynthesis
subject: FACE
subject: CO2
subject: water
subject: temperature
subject: climate change
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: A major issue of our today’s research is to help meeting the challenges of future food security. One task is to assess and develop crop management strategies adapted to predicted future climatic conditions. Yet, both the variability of environmental conditions and the uncertainty of climate projections as well as the orchestra of multiple plant responses and their interaction with the environment make it difficult to predict plant behavior in the field. Recent studies have demonstrated the usefulness of classical crop models as a tool to investigate crop productivity under predicted climate conditions. These models use data on plant architecture only to a limited extent as they usually follow a systems approach by focusing on processes for predicting dry matter production. However, plant architecture is a major determinant of the crops’ resource use efficiency. Moreover, plants show time dependent structural changes as they grow and develop, and these processes are affected by various environmental factors and stresses. Virtual plant models consider both the three-dimensional plant architecture and concepts of plant physiology. Here, we outline the way in which virtual plant modelling can further improve our understanding on the impact of climate change on food production. Greenhouse and growth chamber experiments may serve as data sources for model parameterization, in particular of response functions with respect to environmental stimuli. Data from field experiments in free air carbon enrichment (FACE) facilities, such as those obtained in the new Geisenheim FACE for special crops, may be used to evaluate virtual plant models with respect to future climatic conditions. A combination of field data and virtual plant model simulations may then allow us to assess the specific role of plant architecture in resource use efficiency and help to develop advanced strategies for future crop production.
The Physics of Quantum Information: Complementarity, Uncertainty, and Entanglement
Creators: name: Renes, Joseph M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The overarching goal of this thesis is to demonstrate that complementarity is at the heart of quantum information theory, that it allows us to make (some) sense of just what information "quantum information" refers to, and that it is useful in understanding and constructing quantum information processing protocols. The detailed research results which form the basis of these claims are to be found in the included papers, and the aim here is to present an overview comprehensible to a more general audience.
description: 80 pages, Habilitation thesis, TU Darmstadt, 2011
TEE Network -Transforming Ecology Education to Four Dimensional Network (RCN-UBE Introduction)
Creators: name: Mourad, Teresa
name: Middendorf, George
Publisher: name: QUBES Educational Resources
Year: 2023

description: The TEE network explores the unique role of a disciplinary society in encouraging education innovation and motivating a network of core volunteer leaders and distributed faculty in multiple institutions and across multiple networks.
Role of doping agent degree of sulfonation and casting solvent on the electrical conductivity and morphology of pedot:Spaes thin films
Creators: name: Tomasino, Daniela Valeria
name: Wolf, Mario
name: Farina, Hermes
name: Chiarello, Gianluca
name: Feldhoff, Armin
name: Ortenzi, Marco Aldo
name: Sabatini, Valentina
Publisher: name: Basel : MDPI AG
Year: 2021
Subjects: subject: Casting solvent effect
subject: Degree of sulfonation
subject: Doping agent
subject: Electrically conductive thin films
subject: Poly(3,4-ethylenedioxythiophene)
subject: Sulfonated polyarylether sulfone
subject: Dimethyl sulfoxide
subject: Dimethylformamide
subject: Electric conductivity
subject: Emulsification
subject: Emulsion polymerization
subject: Film preparation
subject: Organic solvents
subject: Polymer films
subject: Semiconducting films
subject: Semiconductor doping
subject: Solubility
subject: Sulfonation
subject: Thin films
subject: Conducting materials
subject: Electrical conductivity
subject: N ,N-Dimethylformamide
subject: N-methyl-2-pyrrolidone
subject: Poly(3 ,4 ethylenedioxythiophene) (PEDOT)
subject: Polymerization solvents
subject: Poor solubilities
subject: Morphology
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Poly(3,4-ethylenedioxythiophene) (PEDOT) plays a key role in the field of electrically conducting materials, despite its poor solubility and processability. Various molecules and polymers carrying sulfonic groups can be used to enhance PEDOT’s electrical conductivity. Among all, sul-fonated polyarylether sulfone (SPAES), prepared via homogenous synthesis with controlled degree of sulfonation (DS), is a very promising PEDOT doping agent. In this work, PEDOT was synthesized via high-concentration solvent-based emulsion polymerization using 1% w/w of SPAES with different DS as dopant. It was found that the PEDOT:SPAESs obtained have improved solubility in the chosen reaction solvents, i.e., N, N-dimethylformamide, dimethylacetamide, dimethyl sulfoxide, and N-methyl-2-pyrrolidone and, for the first time, the role of doping agent, DS and polymerization solvents were investigated analyzing the electrical properties of SPAESs and PEDOT:SPAES samples and studying the different morphology of PEDOT-based thin films. High DS of SPAES, i.e., 2.4 meq R-SO3− × g−1 of polymer, proved crucial in enhancing PEDOT’s electrical conductivity. Furthermore, the DMSO capability to favor PEDOT and SPAES chains rearrangement and interaction results in the formation of a polymer film with more homogenous morphology and higher conductivity than the ones prepared from DMAc, DMF, and NMP. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Cornhill magazine, Volume 33
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2025
Subjects: subject: Short stories
valueUri: http://id.worldcat.org/fast/1117043
subject: Fiction
valueUri: http://id.worldcat.org/fast/923709
subject: Short stories, English
valueUri: http://id.worldcat.org/fast/1117174
subject: English literature--Periodicals
valueUri: http://id.worldcat.org/fast/912141
subject: English periodicals
valueUri: http://id.worldcat.org/fast/912239

description: Quarterly literary periodical of short stories founded by George Smith with W.M. Thackeray as first editor (January 1860-March 1862).
Generation of two-mode entangled states by quantum reservoir engineering
Creators: name: Arenz, Christian
name: Cormick, Cecilia
name: Vitali, David
name: Morigi, Giovanna
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A method for generating entangled cat states of two modes of a microwave cavity field is proposed. Entanglement results from the interaction of the field with a beam of atoms crossing the microwave resonator, giving rise to non-unitary dynamics of which the target entangled state is a fixed point. We analyse the robustness of the generated two-mode photonic "cat state" against dephasing and losses by means of numerical simulation. This proposal is an instance of quantum reservoir engineering of photonic systems.
description: 8 pages, 7 figures
title: СОХРАННОСТЬ ЖИЛЫХ ПОМЕЩЕНИЙ ДЕТЕЙ-СИРОТ
Creators: name: Цой, Мария
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В статье анализируется необходимость создания порядка по обеспечению сохранности жилых помещений, принадлежащих на правах собственности детям-сиротам, а также закрепленных за ними.
Precursor of Inflation
Creators: name: Cho, Inyong
name: Kim, Hyeong-Chan
name: Moon, Taeyoon
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate a nonsingular initial state of the Universe which leads to inflation naturally. The model is described by a scalar field with a quadratic potential in Eddington-inspired Born-Infeld gravity. The curvature of this initial state is given by the mass scale of the scalar field which is much smaller than the Planck scale. Therefore, in this model, quantum gravity is not necessary in understanding this pre-inflationary stage, no matter how large the energy density becomes. The initial state in this model evolves eventually to a long inflationary period which is similar to the usual chaotic inflation.
description: 6pages, 1figure
Proliferation of observables and measurement in quantum-classical hybrids
Creators: name: Elze, Hans-Thomas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Following a review of quantum-classical hybrid dynamics, we discuss the ensuing proliferation of observables and relate it to measurements of (would-be) quantum mechanical degrees of freedom performed by (would-be) classical ones (if they were separable). -- Hybrids consist in coupled classical ("CL") and quantum mechanical ("QM") objects. Numerous consistency requirements for their description have been discussed and are fulfilled here. We summarize a representation of quantum mechanics in terms of classical analytical mechanics which is naturally extended to QM-CL hybrids. This framework allows for superposition, separable, and entangled states originating in the QM sector, admits experimenter's "Free Will", and is local and non-signalling. -- Presently, we study the set of hybrid observables, which is larger than the Cartesian product of QM and CL observables of its components; yet it is smaller than a corresponding product of all-classical observables. Thus, quantumness and classicality infect each other.
description: 13 pages; to appear in International Journal of Quantum Information
title: Generative Neural Network Approach to Designing and Optimizing Dynamic Inductive Power Transfer Systems
Creators: name: Curtis, Andrew Pond
Publisher: name: Utah State University
Year: 2023

description: Electric vehicles (EVs) offer many improvements over traditional combustion engines including increasing efficiency, while decreasing cost of operation and emissions. There is a need for the development of cheap and efficient charging systems for the future success of EVs. Most EVs currently utilize static plug-in charging systems. An alternative charging method of significant interest is dynamic inductive power transfer systems (DIPT). These systems utilize two coils, one placed in the vehicle and one in the roadway to wirelessly charge the vehicle as it passes over. This method removes the current limitations on EVs where they must stop and statically charge for a period of time. However, the physical designs of the charging unit coils depends on many physical parameters, which leads to complexity when determining how to design the unit. A design then needs to be judged for its quality and performance, for which there are eight proposed objective functions. These objective functions represent performance metrics but are conflicting. Some metrics, such as output power are to be maximized, while others such as stray magnetic field and volume of windings and magnetic cores are to be minimized. Different unit designs will trade off performance for these objectives.
In order to address the complex issue of finding near-optimal designs, a machine-learning, Generative Neural Network (GNN) approach is presented for the rapid development of near-optimal DIPT systems. GNNs generate new examples from a trained neural network and have demonstrated remarkable power in creating novel graphic design images from text-to-image training. This stems from their ability to be creative yet constrained in a regular domain. In this case, a simulator network and evaluator generator network are implemented. The simulator is a pre-trained neural network that maps from the physical designs to the objective functions. The generator network is trained to generate the near-optimal physical designs. A design is considered successful if it passes given thresholds for each of the eight objective functions, which evaluate the quality of a design. Before training, the rate of finding successful designs is 0.005%, but within 500 training epochs the rate becomes 98% (about 30 seconds total GPU run time). Engineers and production professionals are interested in both the best performing designs as well as a diversity of configurations to build. In order to improve on these criteria, several different loss functions were developed that incorporate the objective functions. Loss functions are what the neural networks use to determine how to adjust parameters and produce a better design. The various loss functions presented greatly influence the ability of the GNN to produce diverse and high-performance design solutions.
Comparison of theoretical white dwarf cooling timescales
Creators: name: Salaris, Maurizio
name: Althaus, Leandro G.
name: García-Berro, Enrique
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: An accurate assessment of white dwarf cooling times is paramount to place white dwarf cosmochronology of Galactic populations on more solid grounds. This issue is particularly relevant in view of the enhanced observational capabilities provided by the next generation of Extremely Large Telescopes, that will offer more avenues to employ white dwarfs as probes of Galactic evolution and test-beds of fundamental physics. We estimate for the first time the consistency of results obtained from two independent and widely used evolutionary codes (BaSTI and LPCODE) for white dwarf models with fixed mass and chemical stratification, when the same input physics is employed in both codes. We considered 0.55Msun white dwarf models with both pure carbon and uniform carbon-oxygen (50/50 mass fractions) core. We have assessed for the first time the maximum possible accuracy in the current estimates of white dwarf cooling times, resulting only from the different implementations of the stellar evolution equations and homogeneous input physics in two independent stellar evolution codes. This accuracy amounts to 2% at luminosities lower than log(L/L_{\sun})= -1.5$. This agreement is true for both pure carbon and uniform carbon-oxygen stratification core models, and also when the release of latent heat and carbon-oxygen phase separation are considered. This difference is smaller than the uncertainties in cooling times due to the present uncertainties in the white dwarf chemical stratification. We have also determined quantitatively and explained the effect of varying equation of state, low-temperature radiative opacities and electron conduction opacities in our calculation. Finally, we extend the scope of our work by providing tabulations of our cooling sequences and the required input physics, that can be used as a comparison test of cooling times obtained from other white dwarf evolutionary codes.
description: 8 pages, 5 figures, accepted for publication in Astronomy and Astrophysics