cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Aptamer-modified polymer nanoparticles for targeted drug delivery
Creators: name: Modrejewski, Julia
name: Walter, Johanna-Gabriela
name: Kretschmer, Imme
name: Kemal, Evren
name: Green, Mark
name: Belhadj, Hamza
name: Blume, Cornelia
name: Scheper, Thomas
Publisher: name: Berlin : De Gruyter
Year: 2016
Subjects: subject: aptamer
subject: HOOC-PEG-PCL
subject: mPEG-PCL
subject: nanoparticles
subject: copolymer
subject: nanocarrier
subject: paclitaxel
subject: antineoplastic activity
subject: Article
subject: cancer cell
subject: controlled study
subject: drug delivery system
subject: drug dosage form comparison
subject: drug release
subject: drug solubility
subject: female
subject: high performance liquid chromatography
subject: human
subject: human cell
subject: hydrodynamics
subject: in vitro study
subject: infrared spectroscopy
subject: lung cancer
subject: nanoencapsulation
subject: particle size
subject: photon correlation spectroscopy
subject: polymerization
subject: priority journal
subject: process optimization
subject: surface charge
subject: transmission electron microscopy
subject: zeta potential
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: The purpose of this study was to develop a model system for targeted drug delivery. This system should enable targeted drug release at a certain tissue in the body. In conventional drug delivery systems, drugs are often delivered unspecifically resulting in unwarranted adverse effects. To circumvent this problem, there is an increasing demand for the development of intelligent drug delivery systems allowing a tissue-specific mode of delivery. Within this study, nanoparticles consisting of two biocompatible polymers are used. Because of their small size, nanoparticles are well-suited for effective drug delivery. The small size affects their movement through cell and tissue barriers. Their cellular uptake is easier when compared to larger drug delivery systems. Paclitaxel was encapsulated into the nanoparticles as a model drug, and to achieve specific targeting an aptamer directed against lung cancer cells was coupled to the nanoparticles surface. Nanoparticles were characterized by dynamic light scattering (DLS), transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FTIR), and nanotracking analysis (NTA). Also their surface charge was characterized from ζ-potential measurements. Their preparation was optimized and subsequently specificity of drug-loaded and aptamer-functionalized nanoparticles was investigated using lung cancer cells. © 2016 by De Gruyter.
Die Austreibung der Schrift durch die Schrift : Zur philologisch-historischen Reflexion von Mündlichkeit nach 1800 am Beispiel der Grimmschen Kinder- und Hausmärchen
Creators: name: Dehrmann, Mark-Georg
Publisher: name: Berlin : Walter De Gruyter
Year: 2014
Subjects: subject: Volksliteratur
subject: Märchen
subject: Narratologie
subject: Kommunikation
subject: Volksliteratur
subject: Märchen
subject: Erzählforschung
subject: Schriftliche Kommunikation
subject: Mündliche Kommunikation
subject: Dewey Decimal Classification::800 | Literatur, Rhetorik, Literaturwissenschaft

description: The article discusses a paradoxical gesture which is significant for the birth of modern philology and the widespread fascination with folk poetry in the nineteenth century. Scholars often consider the oral nature of these traditions as crucial for their aura. How do they cope with the fact that they have to represent the oral texts in print in order to rescue them for modern culture? The argument focuses on the example of the Brothers Grimm and their Children's and Household Tales.
description: Gelehrte geben in Schrift und Druck Texte heraus, deren Aura für sie gerade auf ihrer mündlichen Natur beruht – diese paradoxe Geste ist bezeichnend für das 19. Jahrhundert, in dem die modernen Philologien entstanden und das Interesse an ‚Volksliteratur‘ weit verbreitet war. Der Beitrag geht ihr am Beispiel der Grimmschen Kinder- und Hausmärchen nach.
description: Les érudits du XIXème siècle sont fascinés par le caractère oral des contes populaires alors même que, pour les conserver, ils les consignent par l’écrit – c’est là un geste paradoxal produit par l’intérêt croissant pour le conte populaire d’une part et de la naissance de la philologie moderne de l’autre. Afin d’examiner ce phénomène, le présent article prend l’exemple des Contes pour les enfants et la maisondes frères Grimm.
Convergence of adaptive learning and expectational stability: The case of multiple rational-expectations equilibria
Creators: name: Heinemann, Maik
Publisher: name: Cambridge : Cambridge University Press
Year: 2000
Subjects: subject: Expectational stability
subject: Learning
subject: Multiple equilibria
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: This paper analyzes the relationship between the expectational stability of rational expectations solutions and the possible convergence of adaptive learning processes. Both concepts are used as selection criteria in the case of multiple rational expectations solutions. Results obtained using recursive least squares lead to the conjecture that there exists a general one-to-one correspondence between these two selection criteria. On the basis of a simple linear model and a stochastic gradient algorithm as an alternative learning procedure, it is demonstrated that such a conjecture would be incorrect: There are cases in which stochastic gradient learning converges to rational expectations solutions that are not expectationally stable.
Quality of Information Maximization for Wireless Networks via a Fully Separable Quadratic Policy
Creators: name: Supittayapornpong, Sucha
name: Neely, Michael J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: An information collection problem in a wireless network with random events is considered. Wireless devices report on each event using one of multiple reporting formats. Each format has a different quality and uses different data lengths. Delivering all data in the highest quality format can overload system resources. The goal is to make intelligent format selection and routing decisions to maximize time-averaged information quality subject to network stability. Lyapunov optimization theory can be used to solve such a problem by repeatedly minimizing the linear terms of a quadratic drift-plus-penalty expression. To reduce delays, this paper proposes a novel extension of this technique that preserves the quadratic nature of the drift minimization while maintaining a fully separable structure. In addition, to avoid high queuing delay, paths are restricted to at most two hops. The resulting algorithm can push average information quality arbitrarily close to optimum, with a trade-off in queue backlog. The algorithm compares favorably to the basic drift-plus-penalty scheme in terms of backlog and delay. Furthermore, the technique is generalized to solve linear programs and yields smoother results than the standard drift-plus-penalty scheme.
Ebook Boundaries: The Risk of Transfiguration a Digital Book into a Non-Book
Creators: name: Tsvetkova, Milena
Publisher: name: Zenodo
Year: 2021
Subjects: Ebook
e-publishing
ebook market
future of еbooks

description: The study tests the hypothesis that ebooks reduce the characteristics of “book” as a communication medium, thus becoming “non-books”. Two hypotheses have been tested: for the preconditions for the failure of the commercial (paid) ebook, and for the preconditions for an end to the ebook in the sense of “book” as a scientific category. Symptoms of the failure of commercial ebooks are as follows: lack of growth on the ebook market, transformation of the book from a commodity into a service, availability for free, as well as resistance by parents and readers. Key reasons for the said resistance are compromised knowledge and learning, and the infringement of readers’ rights. Furthermore, the study establishes the reason for the failure of the ebook in the sense of “book” as a category, which lies in the possibility for manipulation of both its form and content. The conclusion is that investment policies should be targeted at print book publishing while design innovations should be oriented towards physical books and incorporated into paper and print.
title: Essays on Labor Economics
Creators: name: Brüll, Eduard
Publisher: name: Heidelberg University Library
Year: 2019

description: Work is the primary activity in most people’s adult lives. Thus, unsurpirisingly there are intense public debates on 
labor market policies, which have a far-reaching impact on the lives of a large majority of people.  Knowledge of the labor market’s response to changes in demand, supply or its institutional framework is essential to design effective policies.
The aim of this dissertation is to contribute to a better understanding of labor market responses both to single policies and larger trends. It comprises three essays
covering a broad spectrum of related labor market issues. The effects of labor market institutions on employment and wages are a common theme of all three essays.
C-index: a script to identify the best composite Index for seasonal crop management
Creators: name: DI Paola, Arianna
Publisher: name: Zenodo
Year: 2021
Subjects: composite index, crop managment, python script

description: This script provides a forward-stepwise algorithm used to identify the best combination of features that maximizes the Fisher's distance between two classes of data. Selected features are synthetizied into a composite index (Cindex).
 In the example, the feratures are a a set of climate-related variables and the resulting composite index represent the combination of specific, selected features, that maximize the distance between exceptional high and low olive yields over Italy in the period 2006-2020. Rationale and further details are presented in:
 Di Paola, A., Di Giuseppe, E., Gutierrez, A P., Ponti, L., & Pasqui, M. (2023). Climate stressors modulate interannual olive yield at province level in Italy: A composite index approach to support crop management. Journal of Agronomy and Crop Science, 00, 1– 14. https://doi.org/10.1111/jac.12636 Please cite the aforementioned article to fully exploiuy ther Creative Commons Licence
Characterization of a highly efficient N-doped TiO 2 photocatalyst prepared via factorial design
Creators: name: Borges, Karen A.
name: Santos, Lidiaine M.
name: Paniago, Roberto M.
name: Barbosa Neto, Newton M.
name: Schneider, Jenny
name: Bahnemann, Detlef W.
name: Patrocinio, Antonio Otavio T.
name: Machado, Antonio Eduardo H.
Publisher: name: Cambridge : Royal Society of Chemistry
Year: 2016
Subjects: subject: TiO2
subject: nanoparticles
subject: Photochemistry
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: The preparation of titanium dioxide nanoparticles doped with nitrogen for application as a photocatalyst in the decomposition of azo dyes was optimized by factorial planning. Five variables were evaluated and the results showed that the stirring method of the reaction medium, the nitrogen source and the calcination temperature are the determining parameters that affect the photocatalytic activity. With this methodology, it was possible to obtain an optimized photocatalyst (K1) with high surface area and high mineralization efficiency (100%) of the dye Ponceau 4R under solar irradiation. K1, its non-doped version and the worst photocatalyst obtained by the factorial planning (K2) were characterized by several techniques to rationalize the different behaviors. The observed mineralization rate constants under artificial UV-A radiation were in the order of 10−2, 10−4 and 10−3 min−1, respectively, for K1, K2 and the non-doped oxide. As shown by N2 sorption isotherms, the powders exhibited large variations in porosity as well as in the specific surface area, with values ranging from 63.03 m2 g−1 for K1 to 12.82 m2 g−1 for K2. Infrared spectra showed that the calcination of the doped oxides between 300 and 500 °C leads to considerable loss of the nitrogen content, which is corroborated by XPS measurements that also indicate the presence of oxygen vacancies on their surfaces. Nanosecond transient absorption measurements show that the electron–hole half-lifetime in K1 is 870 ns, ca. two times longer than that observed for the other photocatalysts. Additionally, dye degradation studies under solar radiation reveal that K1 is ca. 28% faster than the non-doped TiO2 under similar conditions. This higher photoactivity for K1 is attributed to its extended visible light absorption and the optimized morphological and electronic properties.
Nuclear prolate-shape dominance with the Woods-Saxon potential
Creators: name: Takahara, S.
name: Tajima, N.
name: Shimizu, Y. R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the prolate-shape predominance of the nuclear ground-state deformation by calculating the masses of more than two thousand even-even nuclei using the Strutinsky method, modified by Kruppa, and improved by us. The influences of the surface thickness of the single-particle potentials, the strength of the spin-orbit potential, and the pairing correlations are investigated by varying the parameters of the Woods-Saxon potential and the pairing interaction. The strong interference between the effects of the surface thickness and the spin-orbit potential is confirmed to persist for six sets of the Woods-Saxon potential parameters. The observed behavior of the ratios of prolate, oblate, and spherical nuclei versus potential parameters are rather different in different mass regions. It is also found that the ratio of spherical nuclei increases for weakly bound unstable nuclei. Differences of the results from the calculations with the Nilsson potential are described in detail.
description: 16 pages, 17 figures
Jet energy resolution in proton-proton collisions at sqrt(s) = 7 TeV recorded in 2010 with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The measurement of the jet energy resolution is presented using data recorded with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV. The sample corresponds to an integrated luminosity of 35 pb-1. Jets are reconstructed from energy deposits measured by the calorimeters and calibrated using different jet calibration schemes. The jet energy resolution is measured with two different in situ methods which are found to be in agreement within uncertainties. The total uncertainties on these measurements range from 20% to 10% for jets within |y|<2.8 and with transverse momenta increasing from 30 GeV to 500 GeV. Overall, the Monte Carlo simulation of the jet energy resolution agrees with the data within 10%.
description: 13 pages plus author list (26 pages total), 15 figures, 1 table, submitted to European Physical Journal C
Nadja J. Koch, Paradeigma. Die antike Kunstschriftstellerei als Grundlage der frühneuzeitlichen Kunsttheorie
Creators: name: Manetsch, Thomas
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Nadja J. Koch, Paradeigma. Die antike Kunstschriftstellerei
als Grundlage der frühneuzeitlichen
Kunsttheorie. Gratia. Tübinger Schriften zur Renaissanceforschung
und Kulturwissenschaft, Band 50. Verlag
Harrassowitz, Wiesbaden 2013. 463 Seiten mit
14 Schwarzweißabbildungen.
description: Bonner Jahrbücher, Bd. 214.2014(2015): Bonner Jahrbücher
Modeling indicates degradation of mRNA and protein as a potential regulation mechanisms during cold acclimation
Creators: name: Krantz, Maria
name: Legen, Julia
name: Gao, Yang
name: Zoschke, Reimo
name: Schmitz-Linneweber, Christian
name: Klipp, Edda
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: Acclimation
subject: Chloroplast
subject: Modeling
subject: Temperature
subject: Transcription
subject: Translation
subject: 580 Pflanzen (Botanik)

description: Plants are constantly exposed to temperature fluctuations, which have direct effects on all cellular reactions because temperature influences reaction likelihood and speed. Chloroplasts are crucial to temperature acclimation responses of plants, due to their photosynthetic reactions whose products play a central role in plant metabolism. Consequently, chloroplasts serve as sensors of temperature changes and are simultaneously major targets of temperature acclimation. The core subunits of the complexes involved in the light reactions of photosynthesis are encoded in the chloroplast. As a result, it is assumed that temperature acclimation in plants requires regulatory responses in chloroplast gene expression and protein turnover. We conducted western blot experiments to assess changes in the accumulation of two photosynthetic complexes (PSII, and Cytb6f complex) and the ATP synthase in tobacco plants over two days of acclimation to low temperature. Surprisingly, the concentration of proteins within the chloroplast varied negligibly compared to controls. To explain this observation, we used a simplified Ordinary Differential Equation (ODE) model of transcription, translation, mRNA degradation and protein degradation to explain how the protein concentration can be kept constant. This model takes into account temperature effects on these processes. Through simulations of the ODE model, we show that mRNA and protein degradation are possible targets for control during temperature acclimation. Our model provides a basis for future directions in research and the analysis of future results.
Phonon-Assisted Incoherent Excitation of a Quantum Dot and its Emission Properties
Creators: name: Weiler, S.
name: Ulhaq, A.
name: Roy, C.
name: Ulrich, S. M.
name: Richter, D.
name: Jetter, M.
name: Hughes, S.
name: Michler, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a detailed study of a phonon-assisted incoherent excitation mechanism of single quantum dots. A spectrally-detuned laser couples to a quantum dot transition by mediation of acoustic phonons, whereby excitation efficiencies up to 20 % with respect to strictly resonant excitation can be achieved at T = 9 K. Laser frequency-dependent analysis of the quantum dot intensity distinctly maps the underlying acoustic phonon bath and shows good agreement with our polaron master equation theory. An analytical solution for the photoluminescence is introduced which predicts a broadband incoherent coupling process when electron-phonon scattering is in the strong phonon coupling (polaronic) regime. Additionally, we investigate the coherence properties of the emitted light and study the impact of the relevant pump and phonon bath parameters.
Master's thesis recital (flute)
Creators: name: Fischer, Indigo
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Sonatas (Flute and piano)
Passacaglias (Flute)
Sonatas (Flute and harpsichord)
Flute music
Suites (Flute and piano)--Excerpts
Flute and piano music
Flute and electronic music

description: Flute sonata no. 3 (1933) / Philippe Gaubert -- Passacaglia for flute solo, op. 48, no. 2 (1959) / Ernst von Dohnányi -- Flute sonata in D major, op. 1, no. 4 (approximately 1756) / Anna Bon di Venezia -- East wind : (1987) / Shulamit Ran -- From Three visions. Summerland / William Grant Still -- From Machaut in the machine age. Can I have it without begging? : (2018) / Eve Beglarian
Katja Piesker and Joachim Ganzert, Patara II 2
Creators: name: Aristodemou, Georgia
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Katja Piesker and Joachim Ganzert, Patara II . Das
Theater von Patara. Ergebnisse der Untersuchungen
2004 bis 2008. With contributions by Helmut
Engelmann and Urs Peschlow. Beiträge zur Architektur-
und Kulturgeschichte, Leibniz Universität Hannover,
Abteilung Bau- [und] Stadtbaugeschichte, Fakultät
für Architektur und Landschaft, volume 7.
Publisher Ege Yayınları, Istanbul 2012. 308 pages with
232 figures, 48 tables, 20 plans.
description: Bonner Jahrbücher, Bd. 214.2014(2015): Bonner Jahrbücher
Biostatistical methodology in carcinogenicity studies
Creators: name: Fairweather, William R.
name: Bhattacharyya, Amit
name: Ceuppens, Peter P.
name: Heimann, Günter
name: Hothorn, Ludwig A.
name: Kodell, Ralph L.
name: Lin, Karl K.
name: Mager, Harry
name: Middleton, Brian J.
name: Slob, Wout
name: Soper, Keith A.
name: Stallard, Nigel
name: Ventre, John
name: Wright, Jane
Publisher: name: London : SAGE Publications Ltd.
Year: 1998
Subjects: subject: Carcinogenicity
subject: Data analysis
subject: Literature
subject: Study design
subject: Test statistics
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: This paper addresses the design, conduct, and statistical analysis of carcinogenicity studies, especially in the context of drug products for human use. It contains suggestions concerning the choice of dose levels, number of animals, methods of slide reading, and the ensuing statistical analysis, focusing on the significance testing approach. The purpose of this document is to describe the current thinking of statisticians and others who work in the area of carcinogenicity studies. The authors represent experience gained in the pharmaceutical industry, regulatory agencies, and academia. © 1998, Drug Information Association. All rights reserved.
Barium Abundances in Cepheids
Creators: name: Andrievsky, S. M.
name: Lepine, J. R. D.
name: Korotin, S. A.
name: Luck, R. E.
name: Kovtyukh, V. V.
name: Maciel, W. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We derived the barium atmospheric abundances for a large sample of Cepheids, comprising 270 stars. The sample covers a large range of galactocentric distances, from about 4 to 15 kpc, so that it is appropriated to investigate the existence of radial barium abundance gradients in the galactic disc. In fact, this is the first time that such a comprehensive analysis of the distribution of barium abundances in the galactic disc is carried out. As a result, we conclude that the Ba abundance distribution can be characterized by a zero gradient. This result is compared with derived gradients for other elements, and some reasons are briefly discussed for the independence of the barium abundances upon galactocentric distances.
Klaus Altmayer, Die Herrschaft des Carus, Carinus und Numerianus als Vorläufer der Tetrarchie
Creators: name: Heil, Matthäus
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Klaus Altmayer, Die Herrschaft des Carus, Carinus
und Numerianus als Vorläufer der Tetrarchie. Historia
Einzelschriften, Band 230. Verlag Franz Steiner,
Stuttgart 2014. 506 Seiten mit 28 schwarzweißen Abbildungen
und 2 Zeichnungen.
description: Bonner Jahrbücher, Bd. 214.2014(2015): Bonner Jahrbücher
Exploring shame, mental health, compassion, identity, and help-seeking in Black women who have experienced sexual violence
Creators: name: Milligan, Amani
Publisher: name: University of East London
Year: 2023
Subjects: Black women
sexual violence
sexual assault
help-seeking
Psychological wellbeing
identity
Mental Health

description: Background: Women of African and Caribbean descent are more likely to experience sexual violence than their counterparts and less likely to access mental health support post-sexual violence. Black women navigate a distinct sociopolitical and cultural context that creates a unique intrapsychic and systemic experience of sexual violence. This can impact their mental health, identity, feelings of shame and help-seeking experiences, however, there has been little empirical exploration of this within the UK. Aims: To investigate the associative, predictive, and moderating relationships between shame (internal and external), self-concept, self-compassion, psychological distress, and psychological wellbeing in Black women who have experienced sexual violence. To explore how Black women understand their identity in relation to sexual violence and the factors that hinder and facilitate help-seeking experiences. Methods: A mixed-methods design was employed to quantitatively explore relationships between shame (internal and external), self-concept, self-compassion, psychological distress, and psychological wellbeing via an online survey (N= 37). Five participants took part in semi-structured interviews to discuss identity and helpseeking experiences post-sexual violence. Results: Higher levels of shame were associated with lower psychological wellbeing. Higher levels of self-compassion were associated with and predicted higher levels of wellbeing. However, self-compassion did not moderate the relationship between external shame and psychological distress. The 'Strength Paralleling Vulnerability' and ' "Not Designed for Us" ' themes showed help-seeking experiences were influenced by narratives of strength and obstructed by systemic barriers. Conclusions: The quantitative findings suggest that Black women’s psychological wellbeing is particularly compromised following sexual violence. The 'strong Black woman' narrative can influence Black women's sense of identity and help-seeking. Help-seeking experiences were shown to be complex, silencing and influenced by sociocultural and political factors. The study’s findings have multilevel systemic clinical, policy and research implications.
Sascha Kansteiner (Herausgeber), Ergänzungsprozesse. Transformation antiker Skulptur durch Restaurierung
Creators: name: Maderna, Caterina
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Sascha Kansteiner (Herausgeber), Ergänzungsprozesse.
Transformation antiker Skulptur durch Restaurierung.
Transformationen der Antike, Band 26. Verlag
Walter de Gruyter, Berlin und Boston 2013. 201
Seiten, 47 Tafeln.
description: Bonner Jahrbücher, Bd. 214.2014(2015): Bonner Jahrbücher
Description of the contract between a deterministic anisotropic tool surface and a workpiece subjected to plastic deformation
Creators: name: Rotarescu, M.-I.
Publisher: name: London : SAGE Publications Ltd.
Year: 1998
Subjects: subject: Anisotropic surface
subject: Contact boundary conditions
subject: Finite element method (FEM)
subject: Metal forming
subject: Anisotropy
subject: Boundary conditions
subject: Computer simulation
subject: Finite element method
subject: Friction
subject: Interfaces (materials)
subject: Machine tools
subject: Plastic deformation
subject: Tool-workpiece interaction
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: The finite element method offers an opportunity to obtain important information by simulating metal-forming processes. The description of the tool-workpiece interaction still remains a critical issue. The aim of this paper is to describe the contact between a deterministic anisotropic tool surface (grooved) and a workpiece. This is done by means of an existing contact processor and a friction law that has been conceived to describe sliding friction. This compromise solution of describing a contact state near to sticking by means of a law created for sliding friction is investigated. The results obtained using a macrogeometric model of the grooved surface are compared to those achieved by an idealized smooth surface and different friction coefficients. Next, an anisotropic model is introduced and calibrated using the inverse method based on the ring upsetting test for a hot-worked steel. © IMechE 1998.
Information Theoretic Models for Dependence Analysis and Missing Data Estimation
Creators: name: D. S. Hooda
name: Parmil Kumar
Publisher: name: Zenodo
Year: 2021
Subjects: Maximum entropy principle
contingency table
chi-square statistics
Lagrange's multipliers
dependence measure

description: In the present chapter information theoretic dependence measure has been defined using maximum entropy principle, which measures amount of dependence among the attributes in a contingency table. A relation between information theoretic measure of dependence and Chi-square statistic has been discussed. A generalization of this information theoretic dependence measure has been also studied. In the end Yate’s method and maximum entropy estimation of missing data in design of experiment have been described and illustrated by considering practical problems with empirical data. An algorithm to estimate the missing values in a fuzzy matrix is defined and applied to estimate of missing data in contingency table.
A solar tornado triggered by flares?
Creators: name: Panesar, N. K.
name: Innes, D. E.
name: Tiwari, S. K.
name: Low, B. C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar tornados are dynamical, conspicuously helical magnetic structures mainly observed as a prominence activity. We investigate and propose a triggering mechanism for the solar tornado observed in a prominence cavity by SDO/AIA on September 25, 2011. High-cadence EUV images from the SDO/AIA and the Ahead spacecraft of STEREO/EUVI are used to correlate three flares in the neighbouring active-region (NOAA 11303), and their EUV waves, with the dynamical developments of the tornado. The timings of the flares and EUV waves observed on-disk in 195Å are analyzed in relation to the tornado activities observed at the limb in 171Å. Each of the three flares and its related EUV wave occurred within 10 hours of the onset of the tornado. They have an observed causal relationship with the commencement of activity in the prominence where the tornado develops. Tornado-like rotations along the side of the prominence start after the second flare. The prominence cavity expands with acceleration of tornado motion after the third flare. Flares in the neighbouring active region may have affected the cavity prominence system and triggered the solar tornado. A plausible mechanism is that the active-region coronal field contracted by the `Hudson effect' due to the loss of magnetic energy as flares. Subsequently the cavity expanded by its magnetic pressure to fill the surrounding low corona. We suggest that the tornado is the dynamical response of the helical prominence field to the cavity expansion.
description: 7 pages, 8 Figures, accepted for publication in A&A, Movies can be found at http://www.mps.mpg.de/data/outgoing/panesar/tornado/
Phase-tunable colossal magneto-heat resistance in ferromagnetic Josephson thermal valves
Creators: name: Giazotto, F.
name: Bergeret, F. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We propose a heat valve based on the interplay between thermal transport and proximity-induced exchange splitting in Josephson tunnel junctions. We demonstrate that the junction heat conductance strongly depends on the relative alignment of the exchange fields induced in the superconductors. Colossal magneto-heat resistance ratios as large as 10^7% are predicted to occur under proper temperature and phase conditions, as well as suitable ferromagnet-superconductor combinations. Moreover, the quantum phase tailoring, intrinsic to the Josephson coupling, offers an additional degree of freedom for the control of the heat conductance. Our predictions for the phase-coherent and spin-dependent tuning of the thermal flux can provide a useful tool for heat management at the nanoscale.
description: 4.5 pages, 3 color figures
Dieter Marcos, Architektur des Krieges & Geist der Romantik Studien zur Festungsarchitektur des frühen 19. Jahrhunderts dargestellt am Beispiel der Festung Koblenz
Creators: name: Dollen, Busso Von
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2019

description: Rezension zu: Dieter Marcos, Architektur des Krieges & Geist der Romantik Studien zur Festungsarchitektur des frühen 19. Jahrhunderts dargestellt am Beispiel der Festung Koblenz. Lahnstein: Imprimatur Verlag 2000, 159 Seiten, zahlreiche Schwarzweiß-Abbildungen, kartoniert. ISBN 3-9807361-1-3
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 46, Nr. 2 (2005): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Biopolitics and Temporality in Arendt and Foucault
Creators: name: Braun, Kathrin
Publisher: name: London : SAGE Publications Ltd.
Year: 2007
Subjects: subject: Arendt
subject: biopolitics
subject: Foucault
subject: messianic time
subject: modernity
subject: natality
subject: temporality
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie

description: The article demonstrates that Hannah Arendt's examination of modern temporality strongly intersects with Michel Foucault's diagnosis of modern biopolitics. Both observe three key features of biopolitical modernity: the political zoefication of life, a technocratic understanding of politics, and processual temporality which link the project of modernity to the project of 20th-century totalitarianism. Arendt, however, also offers an alternative, nonbiopolitical understanding of politics, life, and time captured in the concept of natality. Built into the concept of natality is the ‘weakly’ messianic temporal structure of the interval as opposed to processual temporality. © 2007, SAGE. All rights reserved.
Ultrasound-assisted synthesis of layered zeolitic imidazolate framework: crystal formation and characteristics
Creators: name: Gholampour, Nadia
name: Eslamian, Morteza
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Two-dimensional (2-D) Zn/Co, Zn, and Co zeolitic imidazolium frameworks (ZIF) were synthesized using straightforward ultrasound techniques. Dual metal Zn/Co ZIF-L, Zn ZIF-L and Co ZIF-L with leaf-like shape morphologies were prepared in 15 min. Various characterizations have been applied including X-ray diffraction, scanning electron microscopy and energy dispersive X-ray photoelectron spectroscopy to verify that the 2-D structures of these ZIF-L series have been established. The influence of various synthetic conditions such as different metal/ligand ratios as well as different synthesis times on crystal structure, morphology and porosity of Zn/Co ZIF-L were investigated. Cross-leaf morphology was obtained by reducing the metal/ligand ratio. Study of CO2 adsorption revealed that these ZIF-L series have a considerable CO2 adsorption capacity. In situ fabrication of TiO2 nanoparticles within Zn/Co ZIF-L was realized via ultrasonication for 15 min as Zn/Co ZIF-L was created. TiO2@Zn/Co ZIF-L was effectively applied as a catalyst in photodegradation of methyl orange under solar irradiation. The results indicate that ultrasound is an efficient way to synthesize high-quality metal matrix frameworks (MOFs) and immobilize nanoparticles in MOF structures with high yield, in a short time.
Stefan Grathoff, Mainzer Erzbischofsburgen. Erwerb und Funktion von Burgherrschaft am Beispiel der Mainzer Erzbischöfe im Hoch- und Spätmittelalter
Creators: name: Friedhoff, Jens
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2019

description: Rezension zu: Stefan Grathoff, Mainzer Erzbischofsburgen. Erwerb und Funktion von Burgherrschaft am Beispiel der Mainzer Erzbischöfe im Hoch- und Spätmittelalter. (Geschichtliche Landeskunde Bd. 58). Stuttgart: Franz Steiner Verlag, 2005, XIII und 590 Seiten, 9 Karten, geb., ISBN 3-515-08240-9
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 46, Nr. 4 (2005): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Experimental demonstration of long-distance continuous-variable quantum key distribution
Creators: name: Jouguet, Paul
name: Kunz-Jacques, Sébastien
name: Leverrier, Anthony
name: Grangier, Philippe
name: Diamanti, Eleni
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Distributing secret keys with information-theoretic security is arguably one of the most important achievements of the field of quantum information processing and communications. The rapid progress in this field has enabled quantum key distribution (QKD) in real-world conditions and commercial devices are now readily available. QKD systems based on continuous variables present the major advantage that they only require standard telecommunication technology, and in particular, that they do not use photon counters. However, these systems were considered up till now unsuitable for long-distance communication. Here, we overcome all previous limitations and demonstrate for the first time continuous-variable quantum key distribution over 80 km of optical fibre. The demonstration includes all aspects of a practical scenario, with real-time generation of secret keys, stable operation in a regular environment, and use of finite-size data blocks for secret information computation and key distillation. Our results correspond to an implementation guaranteeing the strongest level of security for QKD reported to date for such long distances and pave the way to practical applications of secure quantum communications.
City, museums for the people, and new media (1900-1933/1934)
Creators: name: Saldern, Adelheid Von
Publisher: name: London : SAGE Publications Ltd.
Year: 2005
Subjects: subject: Germany
subject: Heimat
subject: Museums
subject: New media
subject: culture
subject: media industry
subject: media role
subject: museum
subject: Central Europe
subject: Eastern Hemisphere
subject: Eurasia
subject: Europe
subject: World
subject: Dewey Decimal Classification::900 | Geschichte und Geografie

description: The article deals with the educational intentions of and the discourses on popularization of museums by the new media. The use of radio by museums as a means of attracting more people will be reconstructed from the turn of the century to the Nationalist Socialist period. Looking at the Hamburg, the article demonstrates how the city Heimat museum, the Museum of Hamburg History, and its director, Professor Otto Lauffer, cooperated with the Hamburg radio station Norag and one of its program directors, Dr. Kurt Stapelfeldt. The cooperation of the two men was based on similar ideas of Volk, Stamm, and Heimat and demonstrates the use of the most modern media at the time for the popularization of a conservative, attractively prepared concept. Although there was a bias for the rural past, their Heimat concept was not anti-urban per se. Instead, they wanted the cities to search their identities in the peculiarities of the old rural culture of their region. Lauffer and Stapelfeldt considered their work apolitical; in fact, their concept was directed against the modern republican and democratic political culture of the Weimer Republic, and therefore it belonged to the pre-story of the Third Reich. © 2005 Sage Publications.
Synthesis and characterization of new ruthenium(III) complexes derived from fluoreneamine-based Schiff base ligands and their catalytic activity in transfer hydrogenation of ketones
Creators: name: Nagalakshmi, Veerasamy
name: Nandhini, Raja
name: Venkatachalam, Galmari
name: Balasubramani, Kasturi
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: An easy and convenient synthesis of a new series of octahedral ruthenium(III) complexes bearing Schiff base ligands of general formula [RuCl2(EPh3)2(L)] (where E = P, As and L = O,N-donor Schiff bases) has been reported. The composition of all complexes has been unequivocally characterized by spectral (IR, UV-vis, EPR) and ESI-MS techniques. The substituted Schiff base ligands behave as bidentate O,N-donors and coordinate to ruthenium via the phenolic oxygen, the azomethine nitrogen. Complexes 1–6 have been proven to catalyze the transfer hydrogenation of linear, cyclic and aromatic ketones to their corresponding secondary alcohols in the presence of i-PrOH/KOH at 80 °C with conversion up to 99%. The effect of other variables on the transfer hydrogenation reaction such as solvent, base, and catalyst loading is also reported.
Die Burgen Alt- und Neu-Windeck. Zwei Burggründungen der Landgrafen von Thüringen am Mittellauf der Sieg
Creators: name: Friedhoff, Jens
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2019

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 47, Nr. 2 (2006): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Simulating the coupling of angular momenta in distant matter qubits
Creators: name: Ammon, C.
name: Maser, A.
name: Schilling, U.
name: Bastin, T.
name: von Zanthier, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a mathematical proof of the algorithm allowing to generate all - symmetric and non-symmetric - total angular momentum eigenstates in remote matter qubits by projective measurements, proposed in Maser et al. [Phys. Rev. A 79, 033833 (2009)]. By deriving a recursion formula for the algorithm we show that the generated states are equal to the total angular momentum eigenstates obtained via the usual quantum mechanical coupling of angular momenta. In this way we demonstrate that the algorithm is able to simulate the coupling of N spin-1/2 systems, and to implement the required Clebsch-Gordan coefficients, even though the particles never directly interact with each other.
description: 17 pages, 1 figure
Committees as strategic practice: The role of strategic conversation in a public administration
Creators: name: Hoon, Christina
Publisher: name: London : SAGE Publications Ltd.
Year: 2007
Subjects: subject: Committee
subject: Interactions
subject: Middle managers
subject: Strategic conversation
subject: Strategic practice
subject: Strategizing
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie

description: This longitudinal qualitative study examined the role of committees as strategic practice during the implementation of personnel development in a public administration. The results show that the interaction between the management levels is not only organized in formal committees where the middle managers undertake strategic initiatives and the strategic context is set by the senior managers. Rather, the middle managers and the senior managers organize the discussion on strategic issues in informal interactions around committees. These close informal interactions can be understood as a strategic conversation that entails the micro-mechanisms of generating an understanding, aligning towards an issue and making prearrangements which give support for the flow of discussion. The findings show that the strategic conversations are beneficial within shaping strategy as they frame the committee as strategic practice and enable the strategic context to be reshaped and redefined. Copyright © 2007 The Tavistock Institute ® SAGE Publications.
The ionothermal synthesis of a new 3-D framework based on classic β-[Mo8O26]4− anions
Creators: name: Lu, Kun
name: Zhu, Zihan
name: Peng, Lin
name: Fu, Hai
name: Wang, Xinlong
name: Wang, Enbo
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: An unusual metal-organic framework, {H[Ag(I)L][Mo(VI)4O13]}n (1) (L=(4-((1H-1,2,4-triazol-1-yl)methyl)phenyl)methanol)), has been obtained under ionothermal conditions. According to the single-crystal X-ray diffraction analysis, 1 is a new 3-D framework based on β-[Mo8O26]4− type polymolybdate anions with two kinds of channels (A and B) along the b-axes and c-axes in the framework. The neighboring inorganic Mo8-Ag chains are linked by the organic ligands through the Ag centers resulting in 2-D layers. These adjacent 2-D layers extend into a 3-D framework through Ag1 nodes and β-[Mo8O26]4− anions, respectively, resulting in a topological symbol (64 · 82)2(64 · 82). In addition, the gas adsorption, proton conduction and luminescent properties of 1 are also discussed in detail. Moreover, the electrochemical impedance spectroscopy (EIS) measurements show a conductivity (1.9 × 10−4 S cm−1 at 65 °C and 95% relative humidity (RH)), with an activation energy of 0.41 eV for 1. The mechanism of proton conduction for 1 is proved to be the vehicular mechanism.
Class Actions As Firms
Creators: Parkinson, Alex Atticus
Publisher: name: Columbia University
Year: 2016
Subjects: subject: Law
subject: FOS: Law
subject: Class actions (Civil procedure)
subject: Business enterprises
subject: Jurisprudence
subject: Agency costs

description: Class action literature is fixated on principal-agent problems—a near-singular focus that has largely been tracked by the courts, which frequently treat the class action mechanism as a Pandora’s box of agency costs. The ascent of the “principal-agent framework” is unsurprising. The divide between class members and class counsel gives rise to a host of classical principal-agent problems: self interested class counsel often have incentives to act contrary to the interests of class members, and class representatives are poor monitors of such behavior. However, the hegemony of this framework can misguide courts, which not only aggressively regulate genuine principal-agent problems, as they should, but also regularly constrain the size and scope of class actions without explaining why doing so mitigates agency costs. That said, the principal-agent framework rests on an often-assumed, important, and inarguable foundation: principal-agent problems arise because class actions separate ownership (litigation interests belonging to class members) from management (class counsel). This Article refracts the frame of analysis by one degree—from the principal agent framework to Coasean firm analysis. Descriptively, the class action is a like firm. Class actions are, like firms, comprised of ownership interests that aggregate to avoid the higher costs of acting alone in the market, cede control to a manager to achieve efficiencies, and operate pursuant to a profit motive. Moreover, like a firm, there is a natural—almost organic—limit to the growth of a class action: it will expand until litigating outside the class action would prove less costly than additional “growth.” This Article’s “firm framework” is consonant with the most useful components of the principal-agent framework—those that rest on the separation of ownership and management—yet breaks with the traditionalist account in important ways.