cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Morpes: A Model for Personalized Rendering of Web Content on Mobile Devices
Creators: name: Kuppusamy, K. S.
name: Aghila, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences
subject: 68U35

description: With the tremendous growth in the information communication sector, the mobile phones have become the prime information communication devices. The convergence of traditional telephony with the modern web enabled communication in the mobile devices has made the communication much effective and simpler. As mobile phones are becoming the crucial source of accessing the contents of the World Wide Web which was originally designed for personal computers, has opened up a new challenge of accommodating the web contents in to the smaller mobile devices. This paper proposes an approach towards building a model for rendering the web pages in mobile devices. The proposed model is based on a multi-dimensional web page segment evaluation model. The incorporation of personalization in the proposed model makes the rendering user-centric. The proposed model is validated with a prototype implementation.
description: 10 Pages, 2 Figures
Incentives for retailers competing on price and inventory
Creators: name: Shao, Jing
Publisher: name: University of British Columbia
Year: 2009

description: This dissertation studies three topics in supply chain management. Consider a decentralized supply chain, where a manufacturer distributes products through competing retailers. Incentive conflicts among players often occur in such supply chains since the players have different objectives. This research seeks to help the manufacturer understand downstream retailers' incentives and provide managerial guidelines such as coordinating mechanisms and optimal strategies under existing contractual agreements. The first essay considers a manufacturer who distributes a product line (consisting of different product variants) through competing retailers. Due to the substitution between different product variants, as well as between different retailers, the incentive problems associated with distributing a product line are more complicated than that of distributing a single product. We characterize retailers' incentive distortions, and construct contracts that achieve channel coordination. Using numerical simulations, we study how the retailers' incentives and contracts are affected by underlying model parameters. The second essay investigates firms' incentives for transshipment in a decentralized supply chain. Transshipment price and the control of transshipment parameters are key factors that affect the manufacturer's and retailers' incentives for transshipment. We identify conditions under which the manufacturer and retailers are better off and worse off under transshipment. We also compare the decentralized retailer supply chain with one where the retailers are under joint ownership (a "chain store"). We obtain two surprising results. First, the manufacturer may prefer dealing with the chain store rather than with decentralized retailers. Second, chain store retailers may earn lower profits than decentralized retailers. The third essay examines the impact of a gray market on the firms in a decentralized supply chain. Under certain conditions, a gray market's positive effect, i.e., the demand generating effect, dominates the negative effect, i.e., the demand loss in authorized channels, and increases the manufacturer's profit. However, the manufacturer also can be hurt by a gray market. In some cases, the manufacturer can use the linear wholesale price to deter retailers from transshipping to a gray market. However, the deterrence may not always be successful, and the manufacturer needs to employ other approaches such as penalty terms to terminate a gray market.
title: Von der Disposition zur Performanz. Zusammenfassung einer empirischen Studie zur Umsetzung des gesetzlich festgelegten sprachlichen Bildungsauftrages durch pädagogische Fachkräfte in Kindertageseinrichtungen. Von der Beobachtung der sprachlichen Entwicklung eines Kindes bis zur individuellen Sprachbildung
Creators: name: Clauß, Sara
Publisher: name: Universität Graz
Year: 2020

description: Bildungsauftrag, alltagsintegrierte Sprachbildung, pädagogische Fachkraft, Umsetzung, Qualität
description: ElFo - Elementarpädagogische Forschungsbeiträge Jahrgang 2 / Heft 2 / 2020
Multi-chord fiber-coupled interferometry of supersonic plasma jets and comparisons with synthetic data
Creators: name: Merritt, Elizabeth C.
name: Lynn, Alan G.
name: Gilmore, Mark A.
name: Thoma, Carsten
name: Loverich, John
name: Hsu, Scott C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A multi-chord fiber-coupled interferometer [Merritt et al., Rev. Sci. Instrum. 83, 033506 (2012)] is being used to make time-resolved density measurements of supersonic argon plasma jets on the Plasma Liner Experiment [Hsu et al., Bull. Amer. Phys. Soc. 56, 307 (2011)]. The long coherence length of the laser (>10 m) allows signal and reference path lengths to be mismatched by many meters without signal degradation, making for a greatly simplified optical layout. Measured interferometry phase shifts are consistent with a partially ionized plasma in which an initially positive phase shift becomes negative when the ionization fraction drops below a certain threshold. In this case, both free electrons and bound electrons in ions and neutral atoms contribute to the index of refraction. This paper illustrates how the interferometry data, aided by numerical modeling, are used to derive total jet density, jet propagation velocity (~15-50 km/s), jet length (~20-100 cm), and 3D expansion.
description: 6 pages, 4 figures, invited paper at the 19th High Temperature Plasma Diagnostics Conference, Monterey, CA, May 6--10, 2012
Praktische Durchführung der Berechnung der Fahrgeschwindigkeit von Segelschiffen
Creators: name: Wagner, Bernd
Publisher: name: TUHH Universitätsbibliothek
Year: 1962
Subjects: classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines

description: Praktische Durchführung der Berechnung der Fahrgeschwindigkeit von Segelschiffen
title: Kinderrechte im Fokus der Bildsamkeit
Creators: name: Ammann, Kira
Publisher: name: Universität Graz
Year: 2020

description: Der Kinderrechtediskussion liegt das besondere theoretische Problem zugrunde, dass einem Kind zwar von Anfang an ein Subjektstatus zugesprochen wird, es aber mehrheitlich Erwachsene sind, welche die bestimmende Position einnehmen. Die Subjektivität von Kindern ist damit Beschränkungen unterwor-fen, wenn deren Meinungen und Sichtweisen nicht berücksichtigt werden. Inwiefern Bildsamkeit nun eine neue Perspektive auf das Verhältnis von Erziehung und Kinderrechten darstellt und weshalb dies ebenso für den elementarpädagogischen Bereich gilt, ist Gegenstand dieses Artikels. Erkennbar wird, dass ohne das Kind keine Erziehung stattfinden und mit der Bildsamkeit die gesamte Erziehung von der Perspektive des Kindes her gedacht und beschrieben werden kann.
description: UN-Kinderrechtskonvention, Kinderrechte, Bildsamkeit, Erziehung, Rechtssubjekt, Haltung
description: ElFo - Elementarpädagogische Forschungsbeiträge Jahrgang 2 / Heft 2 / 2020
Pulsating stars harbouring planets
Creators: name: Moya, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Why bother with asteroseismology while studying exoplanets? There are several answers to this question. Asteroseismology and exoplanetary sciences have much in common and the synergy between the two opens up new aspects in both fields. These fields and stellar activity, when taken together, allow maximum extraction of information from exoplanet space missions. Asteroseismology of the host star has already proved its value in a number of exoplanet systems by its unprecedented precision in determining stellar parameters. In addition, asteroseismology allows the possibility of discovering new exoplanets through time delay studies. The study of the interaction between exoplanets and their host stars opens new windows on various physical processes. In this review I will summarize past and current research in exoplanet asteroseismology and explore some guidelines for the future.
description: 6 pages. To be published in Astrophysics and Space Science Proceedings series (ASSP), in the proceedings of "20th Stellar Pulsation Conference Series: Impact of new instrumentation & new insights in stellar pulsations", 5-9 September 2011, Granada, Spain (English edition and references update)
Quasiparticle-vibration coupling in relativistic framework: shell structure of Z=120 isotopes
Creators: name: Litvinova, Elena
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: For the first time, the shell structure of open-shell nuclei is described in a fully self-consistent extension of the covariant energy density functional theory. The approach implies quasiparticle-vibration coupling for superfluid systems. One-body Dyson equation formulated in the doubled quasiparticle space of Dirac spinors is solved for nucleonic propagators in tin isotopes which represent the reference case: the obtained energies of the single-quasiparticle levels and their spectroscopic amplitudes are in agreement with data. The model is applied to describe the shell evolution in a chain of superheavy isotopes $^{292,296,300,304}$120 and finds a rather stable proton spherical shell closure at Z = 120. An interplay of the pairing correlations and the quasiparticle-phonon coupling gives rise for a smooth evolution of the neutron shell gap between N = 172 and N = 184 neutron numbers. Vibrational corrections to the alpha decay energies reach several hundred keV and can be either positive and negative, thus also smearing the shell effects.
description: 10 pages, 3 figures
$^6$He-triton cluster states in $^9$Li
Creators: name: Kanada-En'yo, Yoshiko
name: Suhara, Tadahiro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Cluster states in $^9$Li are investigated with calculations of a $^6$He-$t$ cluster model. Results suggest $^6$He-$t$ cluster states near the $^6$He-$t$ threshold energy. These states construct a $K^π=1/2^-$ band and their neutron configuration is similar to that of the $K^π=0^+_2$ band in $^{10}$Be.
description: 7 pages, 9 figures
High seas, high risk : a global evaluation of the effectiveness of regional fisheries management organizations
Creators: name: Cullis-Suzuki, Sarika
Publisher: name: University of British Columbia
Year: 2009

description: The global decline in coastal fisheries has led to fisheries expansion into high seas. Unlike the majority of fisheries within national jurisdiction, high seas fisheries are managed by intergovernmental entities called ‘regional fisheries management organizations’ (RFMOs). The role of RFMOs is generally that of conserving and managing various stocks and/or species, as is mandated by the United Nations Convention on the Law of the Sea. Here, we examine the global effectiveness of RFMOs as they fulfill this role. The assessment of the world’s current 18 RFMOs is achieved through a two-tiered approach. First, we assess RFMO effectiveness in theory, as determined by their stated commitment to RFMO best practices. Second, we assess RFMO effectiveness in practice, as determined by the state of their managed stocks. Results reveal that, overall, RFMOs are lacking in commitment to best practices. Additionally, out of the 48 stocks that were assessed which are under RFMO management, 32 have critically low biomass and/or are being overfished. Taken together results indicate that RFMO effectiveness is poor, highlighting the need for increased RFMO accountability and performance.
The dynamical evolution of dwarf planet (136108) Haumea's collisional family: General properties and implications for the trans-Neptunian belt
Creators: name: Lykawka, Patryk Sofia
name: Horner, Jonathan
name: Mukai, Tadashi
name: Nakamura, Akiko M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Recently, the first collisional family was identified in the trans-Neptunian belt. The family consists of Haumea and at least ten other ~100km-sized trans-Neptunian objects (TNOs) located in the region a = 42 - 44.5 AU. In this work, we model the long-term orbital evolution of an ensemble of fragments representing hypothetical post-collision distributions at the time of the family's birth. We consider three distinct scenarios, in which the kinetic energy of dispersed particles were varied such that their mean ejection velocities (veje) were of order 200 m/s, 300 m/s and 400 m/s, respectively. Each simulation considered resulted in collisional families that reproduced that currently observed. The results suggest that 60-75% of the fragments created in the collision will remain in the trans-Neptunian belt, even after 4 Gyr of dynamical evolution. The surviving particles were typically concentrated in wide regions of orbital element space centred on the initial impact location, with their orbits spread across a region spanning Δa ~ 6-12 AU, Δe ~ 0.1-0.15 and Δi ~ 7-10°. Most of the survivors populated the so-called Classical and Detached regions of the trans-Neptunian belt, whilst a minor fraction entered the Scattered Disk reservoir (<1%), or were captured in Neptunian mean motion resonances (<10%). In addition, except for those fragments located near strong resonances, the great majority displayed negligible long-term orbital variation. This implies that the orbital distribution of the intrinsic Haumean family can be used to constrain the orbital conditions and physical nature of the collision that created the family, billions of years ago. Indeed, our results suggest that the formation of the Haumean collisional family most likely occurred after the bulk of Neptune's migration was complete, or even some time after the migration had completely ceased.
description: 38 pages, 13 figures, accepted for publication in MNRAS (The abstract was shortened. Original version can be found in the pdf file)
How much complementarity?
Creators: name: Bengtsson, Ingemar
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Bohr placed complementary bases at the mathematical centre point of his view of quantum mechanics. On the technical side then my question translates into that of classifying complex Hadamard matrices. Recent work (with Barros e Sa) shows that the answer depends heavily on the prime number decomposition of the Hilbert space. By implication so does the geometry of quantum state space.
description: 6 pages; talk at the Vaxjo conference on Foundations of Probability and Physics, 2011
Ultrafast Optical Excitation of a Persistent Surface-State Population in the Topological Insulator Bi2Se3
Creators: name: Sobota, Jonathan A.
name: Yang, Shuolong
name: Analytis, James G.
name: Chen, Yulin
name: Fisher, Ian R.
name: Kirchmann, Patrick S.
name: Shen, Z. -X.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using femtosecond time- and angle- resolved photoemission spectroscopy, we investigated the nonequilibrium dynamics of the topological insulator Bi2Se3. We studied p-type Bi2Se3, in which the metallic Dirac surface state and bulk conduction bands are unoccupied. Optical excitation leads to a meta-stable population at the bulk conduction band edge, which feeds a nonequilibrium population of the surface state persisting for >10ps. This unusually long-lived population of a metallic Dirac surface state with spin texture may present a channel in which to drive transient spin-polarized currents.
A dynamical dark energy model with a given luminosity distance
Creators: name: Panotopoulos, Grigoris
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is assumed that the current cosmic acceleration is driven by a scalar field, the Lagrangian of which is a function of the kinetic term only, and that the luminosity distance is a given function of the red-shift. Upon comparison with Baryon Acoustic Oscillations (BAOs) and Cosmic Microwave Background (CMB) data the parameters of the models are determined, and then the time evolution of the scalar field is determined by the dynamics using the cosmological equations. We find that the solution is very different than the corresponding solution when the non-relativistic matter is ignored, and that the universe enters the acceleration era at larger red-shift compared to the standard $ΛCDM$ model.
description: 4 pages, 3 figures, accepted for publication in GERG
title: Die Rekonstruktion von Deutungs-, Denk- und Handlungsmustern im Kontext der Lernbegleitung in Lernwerkstätten im Elementarbereich
Creators: name: Hormann, Kathrin
Publisher: name: Universität Graz
Year: 2020

description: Ziel des Beitrages ist es, auf Basis der Auswertung von Stimulated Recall Interviews (Calderhead, 1981; Messmer, 2015), ausgewählte Ergebnisse der Rekonstruktion von Deutungs-, Denk- und Handlungsmustern pädagogischer Fachkräfte – bezogen auf die Lernbegleitung in der Lernwerkstatt – vorzustellen. Dazu wird auf der Grundlage eines Beispiels veranschaulicht, wie durch das axiale Kodieren (Strauss & Corbin, 1996) eine bedeutsame Kategorie weiter ausgearbeitet wird, indem das Kodier-Paradigma (Strauss & Corbin, 1996; Strübing, 2014) um diese Kategorie herum entfaltet wird.
description: Lernwerkstatt, Lernwerkstattarbeit, Lernbegleitung, Reflexive Grounded Theory, Kodierparadigma, Stimulated Recall Interview
description: ElFo - Elementarpädagogische Forschungsbeiträge Jahrgang 2 / Heft 2 / 2020
Magnetic relaxation of a system of superparamagnetic particles weakly coupled by dipole-dipole interactions
Creators: name: Déjardin, Pierre-Michel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The effect of long range dipole-dipole interactions on the thermal fluctuations of the magnetization of an assembly of single-domain ferromagnetic particles is considered. If orientational correlations between the particles are neglected, the evolution of the magnetization orientations may be described by a nonlinear Fokker-Planck equation (FPE) reducing to the usual linear one in the limit of infinite dilution [W.F. Brown Jr, Phys. Rev. 130, 1677 (1963)]. The thermally activated relaxation time scale of the assembly is estimated, leading to a simple modification of the axially symmetric asymptotes for the superparamagnetic relaxation time.
description: 31 pages, 3 figures, regular article
Benchmarking, Scenarios & Economic Feasibility Report (CURE Deliverable D6.2)
Creators: name: Holt Andersen, Birgitte
name: Sopelana, Amaia
name: Lauwaet, Dirk
name: Lefebre, Filip
name: Kjær-Hansen, Louise
name: Ludlow, David
Publisher: name: Zenodo
Year: 2022

description: The aim of this deliverable is to access the CURE services against its real impact for the stakeholders considered. The work builds upon the data collection and results of Task 6.1 the Scenario Development (D6.1) complemented by further data collection and literature research.
Ca2+-stimulated MgATPase of the heart
Creators: name: Morcos, Nabil Charles
Publisher: name: University of Calgary
Year: 1978
Subjects: subject: QH 601 M68 1978 Microfiche
subject: Heart - Muscle
subject: Plasma membranes
subject: Cell membranes
subject: Cell metabolism

description: Bibliography: p. 136-149.
Recent palynology of Goat Lake and Lost Lake, Waterton Lakes National Park
Creators: name: Bujak, Catherine Anne
Publisher: name: University of Calgary
Year: 1974
Subjects: subject: QE 993 B84 1974 Microfiche
subject: Palynology
subject: Pollen, Fossil
subject: Parks, National - Canada - Waterton Lakes

description: Bibliography: p. 58-60.
description: Thesis is bound
description: Includes 4 oversized illustrations at back of thesis.
A Táltos És Az Emberi Lét Hét Szintje. Ezoterizrnus És Újpogányság Kölcsönhatásainak Vizsgáiati Lehetőségei A Kortárs Gyógyítói Rendszerekben
Creators: name: Kis-Halas, Judit
Publisher: name: Zenodo
Year: 2014

description: The figure of the 'táltos' in the spiritualist ideas of the contemporary alternative healing practice.
Enhanced refrigerant capacity and magnetic entropy flattening using a two-amorphous FeZrB(Cu) composite
Creators: name: Álvarez, Pablo
name: Llamazares, José L. Sánchez
name: Gorria, Pedro
name: Blanco, Jesús A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The temperature dependence of the isothermal magnetic entropy change, ΔSM, and the magnetic field dependence of the refrigerant capacity, RC, have been investigated in a composite system xA+(1-x)B, based on Fe87Zr6B6Cu1 (A) and Fe90Zr8B2 (B) amorphous ribbons. Under a magnetic field change of 2 T the maximum improvement of the full-width at half maximum of ΔSM(T) curve (47 and 29 %) and the RC (18 and 23 %), in comparison with those of the individual alloys (A and B), is observed for x \approx 0.5. Moreover, a flattening over 80 K in the ΔSM(T) curve around room temperature range is observed, which is a key feature for an Ericsson magnetic refrigeration cycle.
description: Regular paper with 11 pages in the pre-print, 3 pages after publishing. The following article has been accepted by Applied Physics Letter. After it is published, it will be found at http://apl.aip.org/resource/1/applab/v99
I.Sicily inscription 0114
Creators: name: Prag, Jonathan
Publisher: name: Zenodo
Year: 2020
Subjects: subject: Sicily
subject: epigraphy
subject: http://vocab.getty.edu/page/aat/300138808
subject: https://pleiades.stoa.org/places/462492

description: TEI EpiDoc record
description: This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement No 885040
Ebszar Kutyaszar Semminek Tartom, Meggyógyítom. Egy Gyógyító Ráolvasástípus A Magyarországi Boszorkányperekben
Creators: name: Ilyefalvi, Emese
Publisher: name: Zenodo
Year: 2014

description: Analysis of Hungarian verbal charms in the records of 16th-18th century witchcraft trials.
title: Winter and Summer Variability and Trends of Modis Derived Sea Surface Temperatures for the Western Black Sea
Creators: name: Valcheva, Nadezhda
name: Slabakova, Violeta
Publisher: name: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 8-20
Year: 2020
Subjects: subject: FOS: Earth and related environmental sciences

description: The study investigates on sea surface temperature (SST) seasonal to interannual variability in the western Black Sea using gridded fields of MODIS derived SST monthly averages of 4 km horizontal resolution. More specifically, winter and summer SSTs products were considered spanning a 17-year period (2003-2019).To this end, seasonal climatic mean fields were obtained and observed features were discussed from a hydrodynamic view point. Furthermore, time series of winter and summer SST means were analysed to reveal the spatial variability pattern. In terms of zonal flow, the winter SST increases eastward, while the summer ones – from northwest to southeast. Both winter and summer SSTs exhibit increasing long-term trends; there is almost uniform increase of the winter SSTs of 0.6-0.7°C per decade for all zonal areas, while the summer ones tend to vary in somewhat wider range – 0.5-0.7°C per decade. Besides, based on the normalized SST anomalies, it was found out that during 2003-2019 SSTs have grown with a lower rate compared to the two preceding decades. Finally, in attempt to link the SST variability to global teleconnection patterns such as North Atlantic Oscillation (NAO), a spectral analysis of seasonal time series was performed, which indicated the existence of quasi-decadal scale of variation that roughly follows the NAO positive and negative cycles.
description: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 8-20
The conundrum of functional brain networks: small-world efficiency or fractal modularity
Creators: name: Gallos, Lazaros K.
name: Sigman, Mariano
name: Makse, Hernan A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The human brain has been studied at multiple scales, from neurons, circuits, areas with well defined anatomical and functional boundaries, to large-scale functional networks which mediate coherent cognition. In a recent work, we addressed the problem of the hierarchical organization in the brain through network analysis. Our analysis identified functional brain modules of fractal structure that were inter-connected in a small-world topology. Here, we provide more details on the use of network science tools to elaborate on this behavior. We indicate the importance of using percolation theory to highlight the modular character of the functional brain network. These modules present a fractal, self-similar topology, identified through fractal network methods. When we lower the threshold of correlations to include weaker ties, the network as a whole assumes a small-world character. These weak ties are organized precisely as predicted by theory maximizing information transfer with minimal wiring costs.
description: 14 pages, 8 figures
Contact transformations for difference schemes
Creators: name: Levi, Decio
name: Thomova, Zora
name: Winternitz, Pavel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Group Theory (math.GR)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We define a class of transformations of the dependent and independent variables in an ordinary difference scheme. The transformations leave the solution set of the system invariant and reduces to a group of contact transformations in the continuous limit. We use a simple example to show that the class is not empty and that such "contact transformations for discrete systems" genuinely exist.
title: Variations of Temperature over Bulgaria and their Connection with Solar Cycles
Creators: name: Chapanov, Yavor
Publisher: name: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 21-32
Year: 2020
Subjects: subject: FOS: Earth and related environmental sciences

description: The Sun is the main source of energy for all Earth’s geosystems, including climate, weather, mean sea level, winds, precipitation, and etc., mainly through Total Solar Irradiance (TSI), whose variations during solar activity cause various changes on the Earth surface. Climate processes, interactions between atmosphere-and ocean system, various local, regional and global hydrological cycles are the main mediator between solar activity and a number of geophysical processes on the Earth surface. The temperature at the Earth surface is widely used climate index, whose variations consist of significant seasonal oscillations, trend and long-term cycles. The variations of temperature over Bulgaria is investigated by means of several long time series of meteorological observations. The changes of seasonal components of temperature and long-term oscillations are analyzed in narrow frequency bands by means of the Partial Fourier Approximation. These temperature variations are compared with the corresponding cycles of solar activity in order to create long-term forecast models.
description: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 21-32
A critique of Quine's indeterminacy: gavagai : gallivant and gainsay
Creators: name: Threet, Judith A.
Publisher: name: University of Calgary
Year: 1979
Subjects: subject: B 945 Q54 T49 1979 Fiche
subject: Quine, Willard Van Orman
subject: Translating and interpreting

description: Bibliography: p. 86.
Cooperative source seeking and level curve tracking for multi-agent systems
Creators: name: Rosero García, Esteban Emilio
Publisher: name: Verlag Dr. Hut
Year: 2017
Subjects: subject: Source seeking
subject: Level curve tracking
subject: Cooperative control
subject: Multi agents
subject: Quad-rotor helicopters
classificationCode: 620
subject: Ingenieurwissenschaften

description: In dieser Arbeit wird das Problem der kooperativen Regelung zur Quellensuche und Verfolgung von Niveaulinien für Multi-Agenten-Systeme behandelt, die über eine beschränkte ungerichtete Topologie vernetzt sind. Für diesen Zweck werden verteilte Regelungsalgorithmen vorgeschlagen, die den autonomen Agenten das Erreichen der Quelle eines unbekannten Skalarfeldes ermöglichen oder ihnen die Verfolgung einer gewünschten Niveaukurve erlauben. Jeder einzelne Agent schätzt die Richtung des Gradienten, wobei er ausschließlich auf die lokal gesammelten Informationen angewiesen ist, die ihm in Form der relativen Positionsdaten anderer Agenten sowie der Konzentrationswerte des Skalarfeldes an seiner eigenen Position zur Verfügung stehen. Die vorgestellten Regelungsalgorithmen bestehen aus einer Formationsregelung, die die Agenten in gewünschter geometrischer Formation hält, und aus einer Zielverfolgungskompomente, die die Agenten in Quellrichtung oder entlang einer erwünschten Niveaukurve fliegen lässt. In Verlauf der Untersuchung werden sowohl einfache als auch doppelte Integratormodelle berücksichtigt, sowie auch lineare zeitinvariante (LTI-) Modelle und nicht-holonome Systeme. Stabilitätsbedingungen und Simulationsergebnisse sowohl für einfache und doppelte Integratoren wie auch für LTI-Systeme werden präsentiert.
description: In this thesis, the cooperative source seeking and the level curve tracking problem using a group of agents under an undirected constrained communication topology are addressed. To solve it, distributed control algorithms enabling agents to drive towards an unknown scalar field's source or to move along a desired scalar field's level curve are proposed. Each agent estimates a gradient direction based only on neighbouring agents' relative position information and scalar field's concentration values at their own location. The control algorithms presented are based on both a formation control component ( keeping agents in a desired geometric driving pattern) and a trajectory control component (steering agents in the source's direction or along the desired level curve). Along this work single and double integrators are considered, as well as linear time invariant (LTI) and non-holonomic systems. Stability conditions and simulation results are provided for single and double integrators, as well as for LTI systems.
title: Study of One Month High Polluted Pm Event for Sofia Region
Creators: name: Velizarova, Margret
name: Dimitrova, Reneta
Publisher: name: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 33-43
Year: 2020
Subjects: subject: FOS: Earth and related environmental sciences

description: The habitants in Bulgarian capital city are unfortunately still exposed to high levels of particulate matter (PM) despite a lot of efforts made by the government and municipality during the last decades. A high resolution modelling using ADMS-Urban system was carried out for prolonged one month (January 2014) event with elevated levels of PM concentration for Sofia region. Four main emission sources (point industrial, domestic heating, roads and non-well defined transport) were taken into account for this study. Although this type of modelling accounts only for the local sources and has some deficiency, it can be very useful tool for estimation of the contribution of each source type to the concentration field and also allows to simulate different scenarios for future emission reduction that can help the authorities in decision making.
description: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 33-43
The Influence of Remote Bands on Exciton Condensation in Double-Layer Graphene
Creators: name: Mink, M. P.
name: MacDonald, A. H.
name: Stoof, H. T. C.
name: Duine, R. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We examine the influence of remote bands on the tendency toward exciton condensation in a system consisting of two parallel graphene layers with negligible interlayer tunneling. We find that the remote bands can play a crucial supporting role, especially at low carrier densities, and comment on some challenges that arise in attempting quantitative estimates of condensation temperatures.
description: 12 pages, 9 figures
title: Satellite Data Assimilation of Air Quality Parameters in Bulgaria
Creators: name: Syrakov, Dimiter
name: Prodanova, Maria
name: Georgieva, Emilia
Publisher: name: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 44-52
Year: 2020
Subjects: subject: FOS: Earth and related environmental sciences

description: The operational Bulgarian Chemical Weather Forecast System (BgCWFS) was modified and applied for assimilation of satellite retrieved atmospheric chemistry parameters – Aerosol Optical Depth (AOD) and columnar values of NO2 and SO2. The work outlines the methodology based on calculation of correction factors between model estimated and satellite derived parameters. Two model simulations for August 2017 and February 2019 are made – Model Run (without satellite data assimilation – mod-run) and Satellite Run (with satellite data assimilation – sat-run) for all 5 domains of BgCWFS. In the paper the effect of the assimilation is demonstrated stressing mainly on the difference between sat- and mod-runs. The comparison of sat-run results with observations and with third party modelling results are object of other publications.
description: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 44-52
Enzymatic carboxylation of resorcinol in aqueous triethanolamine: first steps towards a lab-scale production process
Creators: name: Ohde, Daniel
Publisher: name: TUHH Universitätsbibliothek
Year: 2022
Subjects: subject: CO2
subject: Carboxylation
subject: Decarboxylation
subject: Biotransformation
subject: Microbubble
subject: CO2 capture
classificationCode: 660
subject: Technische Chemie

description: Die Triethanolamin-vermittelte enzymatische Carboxylierung von Resorcinol wurde untersucht, bei der CO2 als Ressource genutzt wird. Das Reaktionssystem wurde charakterisiert und Strategien zur Steigerung von der Reaktionsausbeute getestet. Schließlich wurde ein Prozess zur Produktion von 2,6-Dihydroxybenzoesäure in Reinheit von über 99,8% etabliert. Ermöglicht wurde dies durch Verwendung eines geeigneten Adsorbers zur in situ Produktentfernung. Eine Optimierung der CO2 Begasung mit Mikroblasen konnte weiterhin erzielt werden, wodurch der Massentransport und der Nutzungsgrad von CO2 gesteigert werden konnte. Die erzielten Erkenntnisse bringen die enzymatische Carboxylierung, kombiniert mit Aminen, näher einer industriellen Umsetzung.
description: The triethanolamine-mediated enzymatic carboxylation of resorcinol was investigated, where CO2 is used as resource. The reaction system was characterized and different strategies to improve reaction yields tested. In this work, a process was established and characterized to produce 2,6-dihydroxybenzoic acid in a purity of over 99.8%. This was enabled by the application of a suitable adsorbent for in situ product removal. Furthermore, the CO2 gassing was optimized with microbubble gassing, which improved the mass transfer, CO2 utilization and reduced foam formation. The gained insights into the amine-based enzymatic carboxylation helps to promote this process for industrial application.
title: Preliminary Results for the Recurrence of Air Quality Index for the City of Sofia from 2008 to 2019
Creators: name: Gadzhev, Georgi
Publisher: name: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 53-64
Year: 2020
Subjects: subject: FOS: Earth and related environmental sciences

description: The living environment of human beings and, obviously, the atmospheric composition has a great impact for the quality of life and human health. Air Quality (AQ) is a key element of European citizens’ wellbeing and quality of life. The objectives of the present work are to conduct reliable, comprehensive and detailed studies of the impact of lower atmosphere composition on the quality of life and health risks for the population in the city of Sofia. The performed numerical simulations with the US EPA Models-3 system are for 12 years from 2008- 2019 and calculated on five domains: Europe, Balkan Peninsula, Bulgaria, Sofia Municipality and Sofia City with increasing space resolution – from 81 km (Europe) to 1 km (Sofia City). The System is based on the well-known models WRF (Meso- Meteorological Model) and US EPA dispersion model CMAQ (Chemical Transport Model). As emission input the TNO data is used for the two biggest domains. For the 3 Bulgarian domains the current emission inventory prepared by Bulgarian environmental authorities is exploited.
description: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 53-64
title: Particulate Matter Characteristics and Atmospheric Boundary Layer Height over Sofia
Creators: name: Savov, Plamen
name: Kolev, Nikolay
name: Batchvarova, Ekaterina
name: Kirova, Hristina
name: Kolarova, Maria
Publisher: name: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 65-78
Year: 2020
Subjects: subject: FOS: Earth and related environmental sciences

description: The paper presents results from aerosol experimental campaigns performed in the urban environment of Sofia. Laser Particle Counter (PLC) data of 2 summer days (June, 7 and 8) and 4 winter days (December, 18, 19, 20, 21) of 2019 are discussed. Aerosol particle concentrations (number/l and mass μg/m3) in channels 0-2.5 μm and 2.5-10 μm are measured at the open green area near Pliska (at 30 m distance from boulevard Tsarigradsko shose). The combined effect of the daily development of atmospheric boundary layer height, meteorological parameters, and hourly variations in the concentrations of the aerosol fractions is discussed. WRF-GDAS and HYSPLIT models are used for determination of the atmospheric boundary layer height and to follow the transport of air masses. BSC-DREAM dust model is used as an additional source of information to assess the long-range intrusion of dust.
description: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 65-78
Aspen communities and invasion of grassland in the Porcupine Hills, Southwestern Alberta
Creators: name: Frederickson, Dennis Ralph
Publisher: name: University of Calgary
Year: 1975
Subjects: subject: SD 397 A7 F74 1975 Microfiche
subject: Aspen
subject: Forest ecology - Alberta - Porcupine Hills

description: Bibliography: p. 113-120.
Lower bounds for the constants in the Bohnenblust-Hille inequality: the case of real scalars
Creators: name: Diniz, Diogo
name: Muñoz-Fernández, Gustavo
name: Pellegrino, Daniel
name: Seoane-Sepúlveda, Juan B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: The Bohnenblust-Hille inequality was obtained in 1931 and (in the case of real scalars) asserts that for every positive integer $N$ and every $m$-linear mapping $T:\ell_{\infty}^{N}\times...\times\ell_{\infty}^{N}\rightarrow \mathbb{R}$ one has (\sum\limits_{i_{1},...,i_{m}=1}^{N}|T(e_{i_{^{1}}},...,e_{i_{m}})|^{\frac{2m}{m+1}})^{\frac{m+1}{2m}}\leq C_{m}\VertT\Vert, for some positive constant $C_{m}$. Since then, several authors obtained upper estimates for the values of $C_{m}$. However, the novelty presented in this short note is that we provide lower (and non-trivial) bounds for $C_{m}$.
title: Sensitivity to the Wrf Model Configuration of the Wind Chill Index for Sofia Region – Preliminary Results
Creators: name: Ivanov, Vladimir
name: Dimitrova, Reneta
Publisher: name: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 79-89
Year: 2020
Subjects: subject: FOS: Earth and related environmental sciences

description: The thermal comfort is one of the main issues nowadays. The implications from the modelled future climate projections also put a question of the expected thermal environmental conditions. The objective of this paper is a winter human discomfort study for Sofia and its surroundings. Data from numerical simulations with Weather Research and Forecasting (WRF) model were used to calculate a Wind Chill index, which describes the deviation from the winter thermal comfort. This index depends on air temperature and wind, and it is categorized in a 6-grade scale, which describes how far or close are the environmental conditions from the human thermal comfort. Numerical experiments with combination of different parameterization schemes for atmospheric boundary layer and microphysical processes were carried out. Model performance for the temperature and wind speed were used for estimation of the best model options for calculation of the Wind Chill index.
description: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 79-89
Effects of bronchospastic and bronchodilator agents on guinea pig trachobronchial smooth muscle
Creators: name: Hanna, Christopher J.
Publisher: name: University of Calgary
Year: 1976
Subjects: subject: RM 388 H34 1976 Microfiche
subject: Bronchoconstrictor agents
subject: Bronchodilator agents
subject: Guinea-pigs as laboratory animals

description: Bibliography: p. 100-115.
Keep them coming back for more : urban Aboriginal youth's perceptions and experiences of wholistic education in Vancouver
Creators: name: Parent, Amy
Publisher: name: University of British Columbia
Year: 2009

description: The perceptions and experiences of eight Aboriginal youth who participate in Aboriginal youth organizations in Vancouver, British Columbia are explored in this thesis. I begin by examining the literature on Aboriginal youth within the larger context of mainstream society and the urban environment in order to highlight the role that current and historical structural policies have played in their lives. I then trace and critique the positive youth development movement, and examine the various wholistic models of Aboriginal education that have been applied to mainstream and Aboriginal community- based settings. My theoretical approach is a synthesis of Indigenous, critical and Indigenous feminist theories. An Indigenous wholistic framework that incorporates an intergenerational methodology is used to examine the two research questions: (1) How do urban Aboriginal youth articulate, conceptualize and view Indigenous knowledge? (2) What are Aboriginal youths’ experiences of wholistic education provided by urban Aboriginal organizations? Do these organizations meet their needs in terms of a wholistic understanding? From the Aboriginal youth’s perspective, how can urban Aboriginal organizations integrate a more wholistic approach? A sharing circle workshop and open ended interviews with youth and an Elder from the urban Aboriginal community were chosen for the methods. I have also interwoven key teachings that I have learned from Raven (the trickster) who has traveled with me throughout this journey and has significantly shaped this research story. This study confirms the findings in the literature which state that urban Aboriginal youth are finding new ways to explore their Indigeniety and cultural traditions. Four main themes emerged from the first research question: (1) Indigenous Knowledge is Important (2) Indigenous Knowledge is a Process (3) Indigenous Knowledge is Wholistic, and (4) Indigenous Knowledge is Expressed in Multiple Ways. These themes interconnect to form a wholistic representation of Indigenous knowledge. The second research question describes how the organizations are providing wholistic education to meet the youth’s needs and discusses how they can integrate a more wholistic approach. The youth also share their hopes and dreams, and visions for Aboriginal youth organizations by identifying future directions for program planning and development.
title: Modelling of the Sulphur and Nitrogen Depositions over the Balkan Peninsula by CMAQ and EMEP-MSC-W – Preliminary Results
Creators: name: Gadzhev, Georgi
name: Ivanov, Vladimir
Publisher: name: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 90-100
Year: 2020
Subjects: subject: FOS: Earth and related environmental sciences

description: The air quality US EPA models-3 system consisting of SMOKE – emission model and pre-processor, MM5 – meteorological driver, and CMAQ – chemical-transport model, is used in many studies of the air quality in the Balkan Peninsula, and in particular Bulgaria. It runs in different model resolutions, depending on the domain, from European to city scale. The EMEP-MSC-W model is another chemical transport model, widely used in air quality modelling. Two of the processes involved in the concentration change of some pollutant are the dry and wet depositions. The air quality modelling capability depends on many factors, for example, meteorology and emissions. We study the differences in the simulation of the wet and dry depositions for nitrogen and sulphur compounds, between the CMAQ and the EMEP-MSC-W model for a period of 8 years.
description: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 90-100
Difference operators on lattices
Creators: name: Gan, Aiping
name: Guo, Li
Publisher: name: arXiv
Year: 2024
Subjects: subject: Rings and Algebras (math.RA)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 06B20, 06D05, 12H10, 13N15, 05A15, 39A70

description: A differential operator of weight $λ$ is the algebraic abstraction of the difference quotient $d_λ(f)(x):=\big(f(x+λ)-f(x)\big)/λ$, including both the derivation as $λ$ approaches to $0$ and the difference operator when $λ=1$. Correspondingly, differential algebra of weight $λ$ extends the well-established theories of differential algebra and difference algebra. In this paper, we initiate the study of differential operators with weights, in particular difference operators, on lattices. We show that differential operators of weight $-1$ on a lattice coincide with differential operators, while differential operators are special cases of difference operators. Distributivity of a lattice is characterized by the existence of certain difference operators. Furthermore, we characterize and enumerate difference operators on finite chains and finite quasi-antichains.
description: 19 pages