cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Self-gravitational corrections to the Cardy-Verlinde formula of charged BTZ black hole
Creators: name: Darabi, Farhad
name: Jamil, Mubasher
name: Setare, M. R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Physics (physics.gen-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The entropy of the charged BTZ black hole horizon is described by the Cardy-Verlinde formula. We then compute the self-gravitational corrections to the Cardy-Verlinde formula of the charged BTZ black hole in the context of Keski-Vakkuri, Kraus and Wilczek (KKW) analysis. The self-gravitational corrections to the entropy as given by the Cardy-Verlinde formula are found to be positive. This result provides evidence in support of the claim that the holographic bound is not universal in the framework of two-dimensional gravity models.
description: 12 pages, minor revision, accepted for publication in MPLA
Partial Coalescence of Oil and Water: Spreading Behavior and Material Synthesis
Creators: name: Suhas Rao Tamvada
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: Interactions of oil and water form the basis of numerous natural systems including oil spills, food dressings, cosmetic compounds and pharmaceutical drugs. The impact of a single drop of oil onto an air-water interface represents one of the most elemental interactions between oil and water, and thus presents a model problem to understanding the underlying physics involving such droplet-interface interactions. Previous reports have focused on the outcomes of a drop impact onto an identical bulk, characterizing the interaction of a two phase system. There is also ample literature on high velocity impacts of drops onto interfaces, with evaluations of the effect of the Weber number(We) on the final outcome. However, the comprehensive behavior of a drop upon gentle contact with an interface in a three phase system needs further examination. The current study essays to shed light on the complex dynamics taking place during the gentle impact of an oil drop onto an air-water interface in the context of oil spills. Using high speed imaging, the dynamics of drop deformation during the merger of an oil drop with a bulk liquid in a three phase system is investigated experimentally. The merger is found to either proceed in a single event of complete coalescence or in a cascade of multiple events of partial coalescence where a small portion of the drop detaches itself from the merging oil film at every stage. The mechanism adopted by the drop in coalescing with the bulk liquid is found to depend greatly on the physical properties of the oil drop as characterized by the Ohnesorge number. The transient topological features transpiring during the intermediate stages of transition from a drop to a film scale as a function of the Ohp and are theoretically validated using appropriate force balances. Additionally, the spreading behavior of the oils following two distinct impact scenarios - (1) upon impact onto the air-water interface and (2) succeeding the emergence of a drop from below the surface is investigated. It is found that the spreading characteristics during coalescence and emergence are heavily dependent on the viscosity of the oil and bulk liquid respectively, ultimately determining the extent of film coverage over the liquid substrate. The spreading characteristics are scaled against the physical properties of the oil and bulk liquids, and to validate the spreading behavior of the oils, a theoretical model based on the damped harmonic motion is presented. Finally, through material synthesis, attempts are made to control the dewetting events which lead to the emergence of oils in underwater oil spills. It is demonstrated that through manipulation of the production of the initial parent drop, compounds such as armored drops, and single and double emulsions can be created to suit the needs of applications like drug delivery, and emulsion stabilization.
Optogenetic Interrogation of Subpeduncular Tegmentum Reveals Roles in Sleep and Behavioral Arrest
Creators: name: Isaamullah, Mir
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: In the developing mammalian neural tube, the V2a class of neurons is generated throughout the brainstem and spinal cord. Many studies have revealed that the primary function of these neurons is the patterning of motor behaviors such as breathing (Crone et al., 2012), reaching (Azim et al., 2014) and locomotion(Crone et al., 2009). In this report we show that optical stimulation of V2a neurons at the mid-hindbrain junction produces quantifiable changes in cortical oscillations. We find that brief (1min) stimulation of these neurons produces 3-7Hz oscillations in the prefrontal cortex (PFC) as well as behavioral arrest for the duration of stimulation. Similar slow oscillations in the medial PFC are known to correlate with freezing behavior (Karalis et al., 2016). Long term (8h) stimulation of the same V2a neurons promotes wakefulness that is sustained for days after stimulation. These experiments were performed in double transgenic mice (chx10 +/cre Rosa ChR2-GFP/+; p62-p106) expressing channelrhodopsin (ChR2) in V2a neurons with a sample size of 8 animals for each experiment. Littermate controls undergoing identical procedures and stimulation protocols but lacking ChR2 showed no cortical or behavioral response with optical stimulation at mid-hindbrain junction. This study is unique in its examination of cortical oscillations with optical stimulation of V2a at the mid-hindbrain junction. These findings suggest that V2a neurons at the mid-hindbrain junction can potentially mediate motor behaviors and wakefulness by modulating slow oscillations in the PFC.
American National Election Studies: 1974 Survey
Creators: name: Center For Political Studies, University Of Michigan
name: Survey Research Center, University Of Michigan
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Interest in elections and government (2); television coverage of political campaigns (18); newspapers (21); important problems (12); United States Senate campaigns (37); President Gerald Ford (1); President Richard Nixon (6); Ford pardon of Nixon (5); political campaign activity (8); partisan identification (8); votes for United States President (3); House of Representatives (4); system support and public trust (16); protest of government (3); powerful institutions in United States (21); key issues in American life and politics (47); finances and the economy (6); voting (17); feelings towards political candidates and other notable people (18); feelings towards different groups in American society (24); influence of different groups (17); personal esteem, trust, and quality of life (9); work and employment (66); labor unions (3); family background (16); income and expenses (2).
Finite temperature collective modes in a two phase coexistence region of asymmetric nuclear matter
Creators: name: Aguirre, R. M.
name: De Paoli, A. L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The relation between collective modes and the phase transition in low density nuclear matter is examined. The dispersion relations for collective modes in a linear approach are evaluated within a Landau-Fermi liquid scheme by assuming coexisting phases in thermodynamical equilibrium. Temperature and isospin composition are taken as relevant parameters. The in-medium nuclear interaction is taken from a recently proposed density functional model. We found significative modifications in the energy spectrum, within certain range of temperatures and isospin asymmetry, due to the separation of matter into independent phases. We conclude that detailed calculations should not neglect this effect.
description: 15 pages, 4 figures. Minor changes in the text
Dynamical Electroweak Symmetry Breaking with a Heavy Fourth Generation
Creators: name: Hung, P. Q.
name: Xiong, Chi
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A heavy fourth generation with a mass of the order of 400 GeV or more could trigger dynamical electroweak symmetry breaking by forming condensates through the exchange of a fundamental Higgs scalar doublet. The dynamics leading to these condensates is studied within the framework of the Schwinger-Dyson equation. This scenario leads to the presence of {\em three} (two composite and one fundamental) Higgs doublets, with interesting phenomenological implications. In addition, this dynamical phenomenon occurs in the vicinity of the energy scale where the restoration of scale symmetry might happen.
description: 9 double-sided pages, 7 figures. Version to appear in Nuclear Physics B
Modeling the Mechanisms of the Photomechanical Response of a Nematic Liquid Crystal Elastomer
Creators: name: Dawson, Nathan J.
name: Kuzyk, Mark G.
name: Neal, Jeremy
name: Luchette, Paul
name: Palffy-Muhoray, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Recent studies of azo-dye doped liquid crystal elastomers show a strong photomechanical response. We report on models that predict experimental results that suggest photothermal heating is the dominant mechanism in a planar constrained geometry. We compare our models with experiments to determine key material parameters, which are used to predict the dynamical response as a function of intensity. We show that a local strain from photothermal heating and a nonlocal strain from thermal diffusion is responsible for the observed length changes over time. This work both elucidates the fundamental mechanisms and provides input for the design of photomechanical optical devices, which have been shown to have the appropriate properties for making smart materials.
description: 7 Figures, 1 Table
Understanding structure and character in rural water governance networks
Creators: name: Horning, Darwin Glen
Publisher: name: University of British Columbia
Year: 2017

description: Governance has emerged as one of the key concerns amongst water experts focused on sustainability. Achieving sustainable states of water governance requires alignment of governance structures with water management objectives that are context specific. Two rural watershed planning processes in the province of British Columbia- the Similkameen Valley (Similkameen) Watershed planning network and the Kettle River (Kettle) Watershed planning network - were investigated using social network analysis (SNA) and social discourse network analysis (s-DNA) to map the socio-ecological relationships and analyze the discourse upon which water governance networks are being built. The resulting network structures and key actor characteristics revealed limited evidence for a transition towards collaborative and adaptive water governance models, which have been argued to be better suited in addressing key goals such as adapting to climate change impacts. Recommendations are made for improving water governance processes in rural regions to achieve effective implementation within the context of the new British Columbia Water Sustainability Act, 2014. SNA and s-DNA provide a means, through interdisciplinary research, to examine social network drivers and potential barriers to sustainable water governance development. Identifying network structures and measuring network characteristics gives resource managers the insight to intervene into evolving governance processes, to ensure proper alignment with contextually determined water sustainability goals. Results from this research will enable those involved in water governance design and implementation to make informed water resource decisions leading to effective, adaptive, and sustainable water governance.
Compressibility of Interacting Electrons in Bilayer Graphene
Creators: name: Yan, Xin-Zhong
name: Ting, C. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using the renormalized-ring-diagram approximation, we study the compressibility of the interacting electrons in bilayer graphene. The compressibility is equivalent to the spin susceptibility apart from a constant factor. The chemical potential and the compressibility of the electrons can be significantly altered by an energy gap (tunable by external gate voltages) between the valence and conduction bands. For zero gap and a typical finite gap in the experiments, we show both systems are stable.
description: 5 pages, 6 figures
Orbital superfluidity in the $P$-band of a bipartite optical square lattice
Creators: name: Wirth, Georg
name: Ölschläger, Matthias
name: Hemmerich, Andreas
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The successful emulation of the Hubbard model in optical lattices has stimulated world wide efforts to extend their scope to also capture more complex, incompletely understood scenarios of many-body physics. Unfortunately, for bosons, Feynmans fundamental "no-node" theorem under very general circumstances predicts a positive definite ground state wave function with limited relevance for many-body systems of interest. A promising way around Feynmans statement is to consider higher bands in optical lattices with more than one dimension, where the orbital degree of freedom with its intrinsic anisotropy due to multiple orbital orientations gives rise to a structural diversity, highly relevant, for example, in the area of strongly correlated electronic matter. In homogeneous two-dimensional optical lattices, lifetimes of excited bands on the order of a hundred milliseconds are possible but the tunneling dynamics appears not to support cross-dimensional coherence. Here we report the first observation of a superfluid in the $P$-band of a bipartite optical square lattice with $S$-orbits and $P$-orbits arranged in a chequerboard pattern. This permits us to establish full cross-dimensional coherence with a life-time of several ten milliseconds. Depending on a small adjustable anisotropy of the lattice, we can realize real-valued striped superfluid order parameters with different orientations $P_x \pm P_y$ or a complex-valued $P_x \pm i P_y$ order parameter, which breaks time reversal symmetry and resembles the $π$-flux model proposed in the context of high temperature superconductors. Our experiment opens up the realms of orbital superfluids to investigations with optical lattice models.
description: 5 pages, 5 figures
Text based methods for variant prioritization
Creators: name: Gottlieb, Michael
Publisher: name: University of British Columbia
Year: 2017

description: Despite improvements in sequencing technologies, DNA sequence variant interpretation for rare genetic diseases remains challenging. In a typical workflow for the Treatable Intellectual Disability Endeavor in B.C. (TIDE BC), a geneticist examines variant calls to establish a set of candidate variants that explain a patient's phenotype. Even with a sophisticated computation pipeline for variant prioritization, they may need to consider hundreds of variants. This typically involves literature searches on individual variants to determine how well they explain the reported phenotype, which is a time consuming process. In this work, text analysis based variant prioritization methods are developed and assessed for the capacity to distinguish causal variants within exome analysis results for a reference set of individuals with metabolic disorders.
Vers l'auto-évaluation de la compréhension de l'écrit en français
Creators: name: Amal Khadeir
Publisher: name: Zenodo
Year: 2025

description: Le présent  article se veut la  quintessence d’une recherche-action, à dominante qualitative et à visée prescriptive, effectuée  auprès d’une  classe de  tronc commun scientifique  dans un lycée marocain situé à  Salé.  L’enquête  privilégiant le terrain  se donne pour objectif d’étudier  l’évolution des apprenants  en matière de compréhension de l’écrit en langue française, et ce  après  les avoir fait  profiter  d’une formation basée essentiellement sur l’enseignement-apprentissage des stratégies cognitives et métacognitives de la compréhension  de l’écrit.
American National Election Studies: 1976 Survey
Creators: name: Center For Political Studies, University Of Michigan
name: Survey Research Center, University Of Michigan
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Electoral participation; voting behavior; trust; self-esteem; quality of life; and the impact of mass media; economic conditions; the 1976 presidential debates; political activism; the Equal Rights Amendment; party performance on specific issues; impact of media and presidential debates on political learning; perceptions of economic conditions; quality of life; measures of self-esteem and trust.
Cosmological fluctuation growth in bimetric MOND
Creators: name: Milgrom, Mordehai
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: I look at the growth of weak density inhomogeneities of nonrelativistic matter, in bimetric-MOND (BIMOND) cosmology. I concentrate on matter-twin-matter-symmetric versions of BIMOND, and assume that, on average, the universe is symmetrically populated in the two sectors. MOND effects are absent in an exactly symmetric universe, apart from the appearance of a cosmological constant, Lambda~(a0/c)^2. MOND effects-local and cosmological-do enter when density inhomogeneities that differ in the two sectors appear and develop. MOND later takes its standard form in systems that are islands dominated by pure matter. I derive the nonrelativistic equations governing small-scale fluctuation growth. The equations split into two uncoupled systems, one for the sum, the other for the difference, of the fluctuations in the two sectors. The former is governed strictly by Newtonian dynamics. The latter is governed by MOND dynamics, which entails stronger gravity, and nonlinearity even for the smallest of perturbations. These cause the difference to grow faster than the sum, conducing to matter-twin-matter segregation. The nonlinearity also causes interaction between nested perturbations on different scales. Because matter and twin matter (TM) repel each other in the MOND regime, matter inhomogeneities grow not only by their own self gravity, but also through shepherding by flanking TM overdensitie. The relative importance of gravity and pressure in the MOND system depends also on the strength of the perturbation. The development of structure in the universe, in either sector, thus depends crucially on two initial fluctuation spectra: that of matter alone and that of the matter-TM difference. I also discuss the back reaction on cosmology of BIMOND effects that appear as "phantom matter" resulting from inhomogeneity differences between the two sectors.
description: 14 pages. Some clarifications added. Version published in Phys. Rev. D
Wilson loops in (p+1)-dimensional Yang-Mills theories using gravity/gauge theory correspondence
Creators: name: Chakraborty, Somdeb
name: Roy, Shibaji
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the expectation values of both the time-like and the light-like Wilson loops in a strongly coupled plasma of (p+1)-dimensional Yang-Mills theories using gravity/gauge theory correspondence. From the time-like Wilson loop we obtain the velocity dependent quark-antiquark potential where the dipole is moving through the plasma with an arbitrary velocity 0 1, the Wilson loop becomes light-like and we obtain the form of the jet quenching parameter in those strongly coupled plasma.
description: latex file,17 pages, 8 figures,v2: added references;v3: version to appear in Nuclear Physics B
Surplus Angle and Sign-flipped Coulomb Force in Projectable Horava-Lifshitz Gravity
Creators: name: Kim, Hang Bae
name: Kim, Yoonbai
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We obtain the static spherically symmetric vacuum solutions of Horava-Lifshitz gravity theory, imposing the detailed balance condition only in the UV limit. We find the solutions in two different coordinate systems, the Painlevé-Gullstrand coordinates and the Poincare coordinates, to examine the consequences of imposing the projectability condition. The solutions in two coordinate systems are distinct due to the non-relativistic nature of the HL gravity. In the Painleve-Gullstrand coordinates complying with the projectability condition, the solution involves an additional integration constant which yields surplus angle and implies attractive Coulomb force between same charges.
description: 13 pages
Measurement of the Ratio of the 3-jet to 2-jet Cross Sections in pp Collisions at sqrt(s) = 7 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A measurement of the ratio of the inclusive 3-jet to 2-jet cross sections as a function of the total jet transverse momentum, HT, in the range 0.2 < HT < 2.5 TeV is presented. The data have been collected at a proton-proton centre-of-mass energy of 7 TeV with the CMS detector at the LHC, and correspond to an integrated luminosity of 36 inverse picobarns. Comparisons are made between the data and the predictions of different QCD-based Monte Carlo models for multijet production. All models considered in this study are consistent with the data for HT > 0.5 TeV. This measurement extends to an HT range that has not been explored before.
Novel approaches in chromatographic purification process development for low concentrated proteins in complex mixtures
Creators: name: Kröner, Frieder
Publisher: name: Karlsruhe
Year: 2013
Subjects: protein
chromatography
purification
protein analysis
process development

description: Analytical separations, based on pH, salt gradient ion exchange chromatography, were laid out and combined with modern protein analytical technologies for the characterization of protein mixtures. Methods were used to obtain parameters necessary for purification process development / simulation. The applicability of the obtained parameters was further experimentally proven. Additionally, a method for high resolution separation and identification of protein PEGylation isoforms is demonstrated.
title: Tapered Cross Section Photoelectron Spectroscopy Provides Insights into the Buried Interfaces of III‐V Semiconductor Devices
Creators: name: Maheu, Clément
name: Zare Pour, Mohammad Amin
name: Damestoy, Iban
name: Ostheimer, David
name: Mellin, Maximilian
name: Moritz, Dominik C.
name: Paszuk, Agnieszka
name: Jaegermann, Wolfram
name: Mayer, Thomas
name: Hannappel, Thomas
name: Hofmann, Jan P.
Publisher: name: Wiley-VCH
Year: 2023

description: Interfaces are key elements that define electronic properties of the final device. Inevitably, most of the active interfaces of III–V semiconductor devices are buried and it is therefore not straightforward to characterize them. The Tapered Cross Section Photoelectron Spectroscopy (TCS‐PES) approach is promising to address such a challenge. That the TCS‐PES can be used to study the relevant heterojunction in epitaxial III–V architectures prepared by metalorganic chemical vapor deposition is demonstrated here. A MULTIPREP polishing system that enables controlling the angle between the sample holder and the polishing plate has been employed to improve the reproducibility of the polishing procedure. With this procedure, that preparing the TCS of III–V semiconductor devices with tapering angles lower than 0.02° is possible is demonstrated. The PES provides then information about the buried interfaces of Ge|GaInP and GaAs|GaInP layer stacks. Both, chemical and electronic properties have been measured by PES. It evidences that the preparation of the TCSs under an uncontrolled atmosphere modifies the pristine properties of the critical buried heterointerfaces. Surface states and reaction layers are created on the TCS surface, which restrict unambiguous conclusions on buried interface energetics.
Recognition of Traffic Situations based on Conceptual Graphs
Creators: name: Boroch, Natasa
Publisher: name: Karlsruhe
Year: 2013
Subjects: Driver assistance systems
conceptual graphs
scene description
collision detection

description: This work investigates the suitability of conceptual graphs for situation recognition. The scene graph is created in the form of a conceptual graph according to the concept type hierarchy, relation type hierarchy, rules and constraints using the previously obtained information about objects and lanes. The graphs are then matched using projection with the query conceptual graph, which represents the situation. The functionality of the model is shown on the real traffic situations.
Automated Experiments for Deriving Performance-relevant Properties of Software Execution Environments
Creators: name: Hauck, Michael Alexander
Publisher: name: Karlsruhe
Year: 2013

description: The execution environment can play a crucial role when analyzing the performance of a software system. However, detecting execution environment properties and integrating such properties into performance analyses is a manual, error-prone task. In this thesis, a novel approach for detecting performance-relevant properties of the software execution environment is presented. These properties are automatically detected using predefined experiments and integrated into performance prediction tools.
The supernova delay time distribution in galaxy clusters and implications for Type-Ia progenitors and metal enrichment
Creators: name: Maoz, Dan
name: Sharon, Keren
name: Gal-Yam, Avishay
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Knowledge of the supernova (SN) delay time distribution (DTD) - the SN rate versus time that would follow a hypothetical brief burst of star formation - can shed light on SN progenitors and physics. We compile recent measurements of the Type-Ia SN (SN Ia) rate in galaxy clusters at redshifts z=0-1.45. Together with the observed iron-to-stellar mass ratio in clusters, which constrains the time-integrated number of SN Ia events in clusters, we recover the DTD of SNe Ia in cluster environments. The DTD peaks at the shortest time-delay interval we probe, 0
description: ApJ, in press
Thermoresponsive chromatographische Bioseparation von Proteinen
Creators: name: Müller, Tobias Karl Hubert
Publisher: name: Karlsruhe
Year: 2013
Subjects: Bioproduktaufarbeitung
Proteinchromatographie
Temperatureinfluss
Intelligente Polymere
Separationsreaktor

description: Im Rahmen der vorliegenden Dissertation wurde ein kontinuierliches Verfahren zur chromatographischen Separation von Proteinen durch die Kombination von funktionalisierten Partikeln und eines neuartigen Bioseparationsreaktors entwickelt. Die Dissertation beschäftigt sich dabei mit der Untersuchung des Temperatureinflusses auf unterschiedlichen Sorbentien, mit der grundlegenden Charakterisierung des Systems, ersten Anwendungstests sowie der Simulation komplexerer Trennaufgaben.
Heavy particle radioactivities of superheavy nuclei
Creators: name: Poenaru, D. N.
name: Gherghescu, R. A.
name: Greiner, W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The concept of heavy particle radioactivity (HPR) is changed to allow emitted particles with Z_e>28 from parents with Z>110 and daughter around 208Pb. Calculations for superheavy (SH) nuclei with Z=104-124 are showing a trend toward shorter half-lives and larger branching ratio relative to alpha decay for heavier SHs. It is possible to find regions in which HPR is stronger than alpha decay. The new mass table AME11 and the theoretical KTUY05 and FRDM95 masses are used to determine the released energy. For 124 we found isotopes with half-lives in the range of ns to ps.
description: 4 pages, 4 figurex, revtex4-1
Error estimation and mesh adaptation paradigm for unstructured mesh finite volume methods
Creators: name: Sharbatdar, Mahkame
Publisher: name: University of British Columbia
Year: 2017

description: Error quantification for industrial CFD requires a new paradigm in which a robust flow solver with error quantification capabilities reliably produces solutions with known error bounds. Error quantification hinges on the ability to accurately estimate and efficiently exploit the local truncation error. The goal of this thesis is to develop a reliable truncation error estimator for finite-volume schemes and to use this truncation error estimate to improve flow solutions through defect correction, to correct the output functional, and to adapt the mesh. We use a higher-order flux integral based on lower order solution as an estimation of the truncation error which includes the leading term in the truncation error. Our results show that using this original truncation error estimate is dominated by rough modes and fails to provide the desired convergence for the applications of defect correction, output error estimation and mesh adaptation. So, we tried to obtain an estimate of the truncation error based on the continuous interpolated solution to improve their performance. Two different methods for interpolating were proposed: CGM's 3D surfaces and C¹ interpolation of the solution. We compared the effectiveness of these two interpolating schemes for defect correction and using C¹ interpolation of the solution for interpolating is more helpful compared to CGM, so we continued using C¹ interpolation for other purposes. For defect correction, although using the modified truncation error does not improve the order of accuracy, significant quantitative improvements are obtained. Output functional correction is based on the truncation error and the adjoint solution. Both discrete and continuous adjoint solutions can be used for functional correction. Our results for a variety of governing equations suggest that the interpolating scheme can improve the correction process significantly and improve accuracy asymptotically. Different adaptation indicators were considered for mesh adaptation and our results show that the estimate of the truncation error based on the interpolated solution is a more accurate indicator compared to the original truncation error. Adjoint-based mesh adaptation combined with modified truncation error provides even faster convergence of the output functional.
New distribution records from the Brazilian Cerrado and species distribution modelling of Boana crepitans, Lithobates palmipes, Pipa pipa, and Micrurus h. hemprichii
Creators: name: Silionamã Pereira Dantas
name: Helane Dias Tavares
name: Wanieulli Pascoal
name: Saviato, Mário Junior
name: Robson Waldemar Ávila
name: Vasconcelos, Tiago Silveira
name: Fabrício Hiroiuki Oda
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 60506 Virology

description: Even though the herpetofauna richness in the Cerrado – a vast tropical savanna ecoregion of Brazil – is one of the highest of all Brazilian biomes, it still needs to be thoroughly investigated. This study reports the first records of the emerald-eyed tree frog (Boana crepitans), amazon waterfrog (Lithobates palmipes), star-fingered frog (Pipa pipa), and hemprich’s coral snake (Micrurus hemprichii hemprichii) within the states of Maranhão in the northeastern region and Tocantins in the northern region of Brazil. The first state records of Boana crepitans, Pipa pipa and Micrurus h. hemprichii in Tocantins, and Lithobates palmipes in Maranhão, appear in highly climatically suitable areas within the Species Extent of Occurrences (EOO), as predicted in Ecological Niche Modelling (ENM). Our new records of Pipa pipa and Micrurus h. hemprichii, compared to the ENM predictions, represent their southeastern distributional range limits. Our results also suggest that the current gaps on the distributional species ranges probably result from the lack of herpetological surveys in those regions.
A Variational Characterization of the Catenoid
Creators: name: Bernstein, Jacob
name: Breiner, Christine
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 53A10

description: In this note, we use a result of Osserman and Schiffer \cite{OS} to give a variational characterization of the catenoid. Namely, we show that subsets of the catenoid minimize area within a geometrically natural class of minimal annuli. To the best of our knowledge, this fact has gone unremarked upon in the literature. As an application of the techniques, we give a sharp condition on the lengths of a pair of connected, simple closed curves $σ_1$ and $σ_2$ lying in parallel planes that precludes the existence of a connected minimal surface $Σ$ with $\partial Σ=σ_1\cupσ_2$.
description: 21 pages, 1 figure, added Section 4 with additional application
Lévy-Schrödinger wave packets
Creators: name: Petroni, Nicola Cufaro
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60G51 Processes with independent increments, L\'evy processes 81P20 Stochastic mechanics

description: We analyze the time--dependent solutions of the pseudo--differential Lévy--Schrödinger wave equation in the free case, and we compare them with the associated Lévy processes. We list the principal laws used to describe the time evolutions of both the Lévy process densities, and the Lévy--Schrödinger wave packets. To have self--adjoint generators and unitary evolutions we will consider only absolutely continuous, infinitely divisible Lévy noises with laws symmetric under change of sign of the independent variable. We then show several examples of the characteristic behavior of the Lévy--Schrödinger wave packets, and in particular of the bi-modality arising in their evolutions: a feature at variance with the typical diffusive uni--modality of both the Lévy process densities, and the usual Schrödinger wave functions.
description: 41 pages, 13 figures; paper substantially shortened, while keeping intact examples and results; changed format from "report" to "article"; eliminated Appendices B, C, F (old names); shifted Chapters 4 and 5 (old numbers) from text to Appendices C, D (new names); introduced connection between Relativistic q.m. laws and Generalized Hyperbolic laws
The equivariant cohomology of isotropy actions on symmetric spaces
Creators: name: Goertsches, Oliver
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C35, 55N25, 57S15

description: We show that for every symmetric space G/K of compact type with K connected, the K-action on G/K by left translations is equivariantly formal.
description: 11 pages. v2 corrects a faulty quotation of Proposition VII.3.4 in Loos, Symmetric spaces (Proposition 4.8 in v1) which led to incorrect conclusions. Statement of main theorem remains unchanged in v2
Normally preordered spaces and utilities
Creators: name: Minguzzi, E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics

description: In applications it is useful to know whether a topological preordered space is normally preordered. It is proved that every $k_ω$-space equipped with a closed preorder is a normally preordered space. Furthermore, it is proved that second countable regularly preordered spaces are perfectly normally preordered and admit a countable utility representation.
description: 17 pages, 1 figure. v2 contains a second proof to the main theorem with respect to the published version. The last section of v1 is not present in v2. It will be included in a different work
American National Election Studies: 1972-1976 Survey
Creators: name: Center For Political Studies, University Of Michigan
name: Survey Research Center, University Of Michigan
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Vietnam; vice-presidential candidacy of Thomas Eagleton; attitudes on race; women’s role; school busing; government guarantee of jobs and standard of living; abortion; group influence; vote in the presidential primary and post-materialism; Watergate; Nixon impeachment; Nixon pardon; Senate campaigns; evaluations of government and governmental institutions at various levels; media; media as sources of campaign information; electoral participation; voting behavior; trust; self-esteem; quality of life; and the impact of mass media; economic conditions; the 1976 presidential debates; political activism; the Equal Rights Amendment; party performance on specific issues; impact of media and presidential debates on political learning; perceptions of economic conditions; quality of life; measures of self-esteem and trust.
The role of lysine methyltransferase Ehmt2/G9a in mesenchymal development
Creators: name: Zhang, Regan-Heng
Publisher: name: University of British Columbia
Year: 2017

description: The euchromatic histone methyltransferase 2 (Ehmt2), aka. G9a, is responsible for methylating histone H3 at lysine 9. However, it is a multifaceted gene whose functions sometimes exceed histone-tail modifications, and the nature and importance of its regulatory effects differ vastly between different tissue systems. A number of lines of evidence hint at its critical role in the developmental biology and tissue biology of mesenchymal tissues. In this work I assessed the role of Ehmt2 in skeletal muscle, adipose tissues, and craniofacial development. Previous publications employing immortalised cell lines have proposed that Ehmt2 is an important inhibitor of myogenic differentiation. In addition to the well-known repressive effects of H3K9 dimethylation, for which Ehmt2 is largely responsible, it was postulated that it can directly methylate MYOD, a master regulator of myogenesis, and lead to repression of myogenic cell differentiation. In a mouse model to validate this, I found conditional knockout muscle stem cells activated, proliferated, and differentiated normally without Ehmt2. Knockout mice under the control of Myod-Cre developed and regenerated normally after acute injury to leg muscle, refuting the previous theory that Ehmt2 is required for myogenesis. The global loss of H3K9 dimethylation in normal myogenesis also signalled that this histone tail modification is largely irrelevant in skeletal muscle. Despite the gene’s dispensability in a number of developmental tissues, Ehmt2-/- mice die early during embryogenesis. In order to uncover the role of Ehmt2 in other mesenchymal tissues, I generated a transgenic mouse line to conditionally delete Ehmt2 during mesoderm and neural crest development. I found that the loss of Ehmt2 in the Pdgfra developmental lineage resulted in striking yet highly reproducible craniofacial malformations. Adipose tissue is also an important topic in the understanding of Ehmt2, especially since previous publications have found its importance in white adipose tissue, and its homologue, Ehmt1/GLP, to be required for brown adipose tissue specification and activation. The PdgfraCre Ehmt2floxed/null mouse model revealed novel in vivo insight for the role in which Ehmt2 limits lipid accumulation and is required for normal brown adipose development.
FEATURES OF RECOGNITION AND ACCOUNTING OF NON-CURRENT TANGIBLE ASSETS OF THE ENTERPRISE
Creators: name: Kozachenko, A.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2020
Subjects: non-current assets
fixed assets
capital investments
long-term biological assets
accounting

description: Modern conditions for effective management of the enterprise place increased demands on it in terms of management of non-current assets. This should be due to the fact that the competitiveness of the enterprise, financial stability, tactical and strategic prospects for its development depend on the rational and efficient use of noncurrent assets and, as a consequence, the ability to achieve a certain volume of activity and profit. Therefore, there is a need to study the state of formation and use of non-current assets of the enterprise, including non-current tangible assets. The article reveals the economic essence of "non-current assets". Their components with the separation of directly non-current tangible assets are considered. Methodical and organizational aspects of accounting for non-current tangible assets are studied.
Scale-dependent Bias from the Reconstruction of Non-Gaussian Distributions
Creators: name: Chongchitnan, Sirichai
name: Silk, Joseph
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Primordial non-Gaussianity introduces a scale-dependent variation in the clustering of density peaks corresponding to rare objects. This variation, parametrized by the bias, is investigated on scales where a linear perturbation theory is sufficiently accurate. The bias is obtained directly in real space by comparing the one- and two-point probability distributions of density fluctuations. We show that these distributions can be reconstructed using a bivariate Edgeworth series, presented here up to an arbitrarily high order. The Edgeworth formalism is shown to be well-suited for 'local' cubic-order non-Gaussianity parametrized by g_NL. We show that a strong scale-dependence in the bias can be produced by g_NL of order 10,000, consistent with CMB constraints. On correlation length of ~100 Mpc, current constraints on g_NL still allow the bias for the most massive clusters to be enhanced by 20-30% of the Gaussian value. We further examine the bias as a function of mass scale, and also explore the relationship between the clustering and the abundance of massive clusters in the presence of g_NL. We explain why the Edgeworth formalism, though technically challenging, is a very powerful technique for constraining high-order non-Gaussianity with large-scale structures.
description: 16 pages, 7 figures, submitted to Phys. Rev. D
ECONOMIC ASPECTS OF AGRO-FOOD CHAINS ОN THE BIOFUEL MARKET OF UKRAINE
Creators: name: Varchenko, O.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2020
Subjects: supply chain
biomass
biofuels
value added
manufacturers
suppliers
energy service companies
traders

description: It is proved that ensuring the competitiveness of the biofuel supply chain is achieved based on improving the efficiency of participants functioning at each level, the formation of appropriate conditions of competition based on entering new marketeers, expanding the capacity of the internal market and its individual segments. The expediency of development of small forms of agrarian business in the field of bioenergy in the country is substantiated leading to growth of economy and, in particular, agrarian branch, creation of new jobs and expansion of tax base. The value chains that are formed on the bioenergy market of the country are identified and characterized, and the factors that influence the efficiency of its functioning are systematized. A methodological approach to determine the economic feasibility of directing agricultural products in different lines of industrial use, including biofuel refining, which allows to determine the effect at the level of individual participants in the chain and the country as a whole. It is established that the quality confirmation of both raw materials and final products, which is achieved based on compliance with standards and certification of production activity plays a crucial role in the formation of the technological chain of production, marketing and final consumption of solid biofuels. Production feasibility of bioenergy resources through the cumulative value added formed in the respective technological circuits has been determined.
A Game Theoretical Analysis of Localization Security in Wireless Sensor Networks with Adversaries
Creators: name: Gatti, Nicola
name: Monga, Mattia
name: Sicari, Sabrina
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences
subject: K.6.5; C.2.0

description: Wireless Sensor Networks (WSN) support data collection and distributed data processing by means of very small sensing devices that are easy to tamper and cloning: therefore classical security solutions based on access control and strong authentication are difficult to deploy. In this paper we look at the problem of assessing security of node localization. In particular, we analyze the scenario in which Verifiable Multilateration (VM) is used to localize nodes and a malicious node (i.e., the adversary) try to masquerade as non-malicious. We resort to non-cooperative game theory and we model this scenario as a two-player game. We analyze the optimal players' strategy and we show that the VM is indeed a proper mechanism to reduce fake positions.
description: International Congress on Ultra Modern Telecommunications and Control Systems 2010. (ICUMT'10)
MPEC 2025-F233 : 2025 FT14
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 FT14

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Magnetresonanzbildgebung zur Führung und Überwachung minimalinvasiver Thermotherapien
Creators: name: Maier, Florian
Publisher: name: Karlsruhe
Year: 2012
Subjects: MRT
HIFU
LITT
Tracking
Thermometrie

description: Minimalinvasive Thermoablationsverfahren bieten das Potenzial, Tumore zielgerichtet und für den Patienten schonend zu zerstören. Das primäre Ziel dieser Arbeit war die Verbesserung und Vereinfachung der Anwendbarkeit zweier Thermoablationsverfahren: Hochintensiver fokussierter Ultraschall und laserinduzierte interstitielle Thermotherapie. Hierzu wurden Methoden und Softwarepakete zur Zielführung und Überwachung der Eingriffe innerhalb eines Magnetresonanztomographen entwickelt.