cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Thermal blinding of gated detectors in quantum cryptography
Creators: name: Lydersen, Lars
name: Wiechers, Carlos
name: Wittmann, Christoffer
name: Elser, Dominique
name: Skaar, Johannes
name: Makarov, Vadim
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It has previously been shown that the gated detectors of two commercially available quantum key distribution (QKD) systems are blindable and controllable by an eavesdropper using continuous-wave illumination and short bright trigger pulses, manipulating voltages in the circuit [L. Lydersen et al., Nat. Photonics DOI:10.1038/nphoton.2010.214]. This allows for an attack eavesdropping the full raw and secret key without increasing the quantum bit error rate (QBER). Here we show how thermal effects in detectors under bright illumination can lead to the same outcome. We demonstrate that the detectors in a commercial QKD system Clavis2 can be blinded by heating the avalanche photo diodes (APDs) using bright illumination, so-called thermal blinding. Further, the detectors can be triggered using short bright pulses once they are blind. For systems with pauses between packet transmission such as the plug-and-play systems, thermal inertia enables Eve to apply the bright blinding illumination before eavesdropping, making her more difficult to catch.
description: 10 pages, 12 figures
Finite volume schemes for multidimensional hyperbolic systems based on the use of bicharacteristics
Creators: name: Medviďová-Lukáčová, Mária
Publisher: name: TUHH Universitätsbibliothek
Year: 2003
Subjects: subject: multidimensional finite volume methods
subject: Bicharacteristics
subject: Hyperbolic systems
subject: Wave equation
subject: Euler equations
subject: 510: Mathematik
subject: Hyperbolisches System
subject: Erhaltungssatz
subject: Bicharakteristikenverfahren
subject: 510
subject: 65M06:Finite difference methods
subject: 35L05:Wave equation
subject: 65M06
subject: 35L05

description: In this survey paper we present an overview on recent results for the bicharacteristics based finite volume schemes, the so-called finite volume evolution Galerkin (FVEG) schemes. These methods were proposed to solve multidimensional hyperbolic conservation laws. They combine the usually conflicting design objectives of using the conservation form and following the characteritics, or bicharacteritics. This is realized by combining the finite volume formulation with approximate evolution operators, which use bicharacteristics of multidimensional hyperbolic system. In this way all of the infinitely many directions of wave propagation are taken into account. The main goal of this paper is to study long-time behaviour of the FVEG schemes. We present several numerical experiments which con¯rm the fact that the FVEG methods are well-suited for long-time simulations
Recurrence relations for the even and odd characteristic polynomials of a symmetric Toeplitz matrix
Creators: name: Kostić, Aleksandra
name: Voß, Heinrich
Publisher: name: TUHH Universitätsbibliothek
Year: 2003
Subjects: subject: eigenvalue
subject: Toeplitz matrix
subject: factorization
subject: 510: Mathematik
subject: Eigenwert
subject: Toeplitz-Matrix
subject: Faktorisierung
subject: 510
subject: 65F15:Eigenvalues, eigenvectors
subject: 15A18:Eigenvalues, singular values, and eigenvectors
subject: 65F15
subject: 15A18

description: In a recent paper [10] Melman proved an even–odd factorization of the characteristic polynomial of a symmetric Toeplitz matrix T on which a symmetry exploiting method for computing the smallest eigenvalue of T can be based. In this note we present a proof of the factorization which is less technical and more transparent.
Noise-induced effects in magnetization reversal and chirality control of circular array of single-domained nanomagnets
Creators: name: Pankratov, A. L.
name: Vdovichev, S. N.
name: Nefedov, I. M.
name: Karetnikova, I. R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The effect of noise on the process of high-speed remagnetization of vortex state of a pentagonal array of five circular magnetic nanoparticles is studied by means of computer simulation of Landau-Lifshits model. The mean switching time and its standard deviation of the reversal between the counterclockwise and clockwise vorticities have been computed. It has been demonstrated that with the reversal by the pulse with sinusoidal shape, the optimal pulse duration exists, which minimizes both the mean switching time (MST) and the standard deviation (SD). Besides, both MST and SD significantly depend on the angle between the reversal magnetic field and pentagon edge, and the optimal angle roughly equals 10 degrees. Also, it is demonstrated that the optimization of the angle, duration and the amplitude of the driving field leads to significant decrease of both MST and SD. In particular, for the considered parameters, the MST can be decreased from 60 ns to 2-3 ns. Such a chain of magnetic nanoparticles can effectively be used as an element of magnetoresistive memory, and at the temperature 300K the stable operation of the element is observed up to rather small size of nanoparticles with the raduis of 20 nm.
description: 4 pages, 5 figures
Parallel condensation in the presence of global masters
Creators: name: Hofferek, Birgit
name: Pelzer, Andreas
name: Voß, Heinrich
Publisher: name: TUHH Universitätsbibliothek
Year: 2000
Subjects: subject: generalized eigenvalue problem
subject: condensation
subject: parallel method
subject: global masters
subject: 510: Mathematik
subject: Eigenwertproblem
subject: 510
subject: 65F15:Eigenvalues, eigenvectors
subject: 65F15

description: In the dynamic analysis of structures condensation methods are often used to reduce the number of degrees of freedom to manageable size. Substructuring and choosing the master variables as the degrees of freedom on the interfaces of the substructures yields data structures which are well suited to be implemented on distributed memory parallel computers. This paper discusses a parallel condensation method in the presence of generalized global masters which are obtained in reanalysis or from prolongation of coarse grid approximations.
Comptonization of the cosmic microwave background by high energy particles residing in AGN cocoons
Creators: name: Prokhorov, D. A.
name: Antonuccio-Delogu, V.
name: Silk, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: X-ray cavities and extended radio sources (`cocoons') surrounding active galactic nuclei (AGN) have been detected by the Chandra X-ray mission and radio interferometers. A joint analysis of X-ray and radio maps suggests that pressure values of non-thermal radio-emitting particles derived from the radio maps are not sufficient to inflate the X-ray cavities. We propose using the Sunyaev-Zel'dovich (SZ) effect, whose intensity strongly depends on the pressure, to find the hitherto undetected, dynamically-dominant component in the radio cocoons. We demonstrate that the spectral function at a frequency of 217 GHz has an absolute maximum at a temperature higher than $10^9$ K, therefore the measurement of the SZ effect at this frequency is a powerful tool for potentially revealing the dynamically-dominant component inside AGN jet-driven radio cocoons. A new method is proposed for excluding the contribution from the low energy, non-relativistic electrons to the SZ effect by means of observations at two frequencies. We show how one may correct for a possible contribution from the kinematic SZ effect. The intensity maps of the SZ effect are calculated for the self-similar Sedov solution, and application of a predicted ring-like structure on the SZ map at a frequency of 217 GHz is proposed to determine the energy released during the active jet stage. The SZ intensity map for an AGN cocoon in a distant elliptical is calculated using a 2-D numerical simulation and including relativistic corrections to the SZ effect. We show the intensity spectrum of the SZ effect is flat at high frequencies if gas temperature is as high as $k_\mathrm{b} T_{\mathrm{e}}=500$ keV.
description: 12 pages, 15 figures, accepted for publication in Astronomy and Astrophysics
Bioleaching of sulfide minerals by Leptospirillum ferriphilum CC from polymetallic mine (Armenia)
Creators: name: Vardanyan, Arevik
name: Khachatryan, Anna
name: Castro, Laura
name: Willscher, Sabine
name: Gaydardzhiev, Stoyan
name: Zhang, Ruiyong
name: Vardanyan, Narine
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 550

description: A strain of Leptospirillum sp. CC previously isolated from Akhtala polymetallic ore (Armenia) was studied. The main morphological and physiological characteristics of CC were revealed. The optimal growth temperature was 40 °C and optimal pH 1.5. A phylogenetic analysis based on 16S rRNA gene sequences (GenBank ID OM272948) showed that isolate CC was clustered with L. ferriphilum and possessed 99.8% sequence similarity with the strain L. ferriphilum OL12-2 (KF356024). The molar fraction of DNA (G + C) of the isolate was 58.5%. Bioleaching experiment indicates that L. ferriphilum CC can oxidize Fe(II) efficiently, and after 17 days, 44.1% of copper and 91.4% of iron are extracted from chalcopyrite and pyrite, respectively. The efficiency of L. ferriphilum CC in pyrite oxidation increases 1.7 times when co-cultivated with At. ferrooxidans ZnC. However, the highest activity in pyrite oxidation shows the association of L.ferriphilum CC with heterotrophic Acidocella sp. RBA bacteria. It was shown that bioleaching of copper and iron from chalcopyrite by association of L. ferriphilum CC, At. ferrooxidans ZnC, and At. albertensis SO-2 in comparison with pure culture L. ferriphilum CC for 21 days increased about 1.2 and 1.4–1.6 times, respectively.
The positronic economist : a computational system for analyzing economic mechanisms
Creators: name: Thompson, David R. M.
Publisher: name: University of British Columbia
Year: 2015

description: A mechanism is a formal protocol for collective decision making among self-interested agents. Mechanisms model many important social processes from auctions to elections. They are also widely studied in computer science: the participants in real-world mechanisms are often autonomous software systems (e.g., algorithmic bidding and trading agents), and algorithmic problems (e.g., job scheduling) give rise to mechanisms when users have competing interests. Strategic behavior (or "gaming") poses a major obstacle to understanding mechanisms. Although real-world mechanisms are often fairly simple functions (consider, e.g., plurality voting), a mechanism's outcome depends on both this function and on agents' strategic choices. Game theory provides a principled means for analyzing such choices. Unfortunately, game theoretic analysis is a difficult process requiring either human effort or very large amounts of computation. My thesis is that mechanism analysis can be done computationally, due to recent advances in compact representations of games. Compact representation is possible when a game's description has a suitable independence structure. Exploiting this structure can exponentially decrease the space required to represent games, and exponentially decrease the time required to analyze them. The contributions of my thesis revolve around showing that the relevant kinds of structure (specifically, the structure exploited by action-graph games) are present in important mechanisms of interest. Specifically, I studied two major classes of mechanisms, position auctions (as used for internet advertising) and voting rules. In both cases, I was able to provide exponential improvements in the space and time complexity of analysis, and to use those improvements to address important open questions in the literature. I also introduced a new algorithm for analyzing action-graph games, with faster empirical performance and additional benefits over the previous state-of-the-art. Finally, I created the Positronic Economist system, which consists of a python-based descriptive language for mechanism games, with automatic discovery of computationally useful structure.
Investigation and comparison of land cover change patterns in Xuzhou city, China, and Dortmund city region, Germany, using multitemporal Landsat images
Creators: name: Li, Cheng
name: Thinh, Nguyen Xuan
Publisher: name: Society of Photo-Optical Instrumentation Engineers
Year: 2013
Subjects: subject: Land cover change
subject: Urban growth pattern
subject: Landsat
subject: Vegetation impervious surfacesoil model
subject: Buffer analysis
subject: Jaggedness degree
subject: 710

description: Journal of applied remote sensing;7.2013,1
Theoretical analysis of the role of chromatin interactions in long-range action of enhancers and insulators
Creators: name: Mukhopadhyay, Swagatam
name: Schedl, Paul D.
name: Studitsky, Vasily M.
name: Sengupta, Anirvan M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences

description: Long-distance regulatory interactions between enhancers and their target genes are commonplace in higher eukaryotes. Interposed boundaries or insulators are able to block these long distance regulatory interactions. The mechanistic basis for insulator activity and how it relates to enhancer action-at-a-distance remains unclear. Here we explore the idea that topological loops could simultaneously account for regulatory interactions of distal enhancers and the insulating activity of boundary elements. We show that while loop formation is not in itself sufficient to explain action at a distance, incorporating transient non-specific and moderate attractive interactions between the chromatin fibers strongly enhances long-distance regulatory interactions and is sufficient to generate a euchromatin-like state. Under these same conditions, the subdivision of the loop into two topologically independent loops by insulators inhibits inter-domain interactions. The underlying cause of this effect is a suppression of crossings in the contact map at intermediate distances. Thus our model simultaneously accounts for regulatory interactions at a distance and the insulator activity of boundary elements. This unified model of the regulatory roles of chromatin loops makes several testable predictions that could be confronted with \emph{in vitro} experiments, as well as genomic chromatin conformation capture and fluorescent microscopic approaches.
description: 10 pages, originally submitted to an (undisclosed) journal in May 2010
A symmetry exploiting Lanczos method for symmetric Toeplitz matrices
Creators: name: Voß, Heinrich
Publisher: name: TUHH Universitätsbibliothek
Year: 1999
Subjects: subject: Toeplitz matrix
subject: eigenvalue problem
subject: Lanczos method
subject: symmetry
subject: 510: Mathematik
subject: Toeplitz-Matrix
subject: Eigenwertproblem
subject: 510
subject: 65F15:Eigenvalues, eigenvectors
subject: 65F15

description: Several methods for computing the smallest eigenvalues of a symmetric and positive definite Toeplitz matrix T have been studied in the literature. The most of them share the disadvantage that they do not reflect symmetry properties of the corresponding eigenvector. In this note we present a Lanczos method which approximates simultaneously the odd and the even spectrum of T at the same cost as the classical Lanczos approach.
Additional file 1 of Prognostic significance of long non-coding RNA five prime to XIST in various cancers
Creators: name: Zhou, Jian
name: Chen, Junjie
name: Chen, Ziyuan
name: Wu, Gen
name: Zhou, Zhen
name: Wu, Tong
name: Wang, Wanchun
name: Luo, Yingquan
name: Liu, Tang
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Additional file 1 Table S1. Qualitative assessment of enrolled publications.
The pro-sequence of parathyroid hormone prevents premature amyloid fibril formation
Creators: name: Sachan, Shubhra
name: Gonzalez Moya, Celia
name: Voigt, Bruno
name: Köhn, Marcel
name: Balbach, Jochen
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 530

description: The parathyroid hormone (PTH) regulates the calcium and phosphate level in blood after secretion from parathyroid chief cells. The pre- and pro-sequences of precursor preproPTH get cleaved during PTH maturation. In secretory granules, PTH forms functional amyloids. Using thioflavin T fibrillation assays, circular dichroism, NMR spectroscopy, and cellular cAMP activation, we show that the pro-sequence prevents premature fibrillation by impairing primary nucleation because of Coulomb repulsion of positively charged residues. Under seeding or high salt conditions or in the presence of heparin at pH 5.5, proPTH fibril formation is delayed, but the monomer release properties are conserved. ProPTH can still activate in cellulo PTH receptor 1 but with impaired potency. These findings give some perspectives on medical applications of PTH in hormone therapy.
Grundlagen einer interaktionistischen Sozionik
Creators: name: Paetow, Kai
name: Rovatsos, Michael
Publisher: name: TUHH Universitätsbibliothek
Year: 2003
Subjects: subject: 300: Sozialwissenschaften, Soziologie
subject: 71.02:Theorie der Soziologie
subject: 54.72:Künstliche Intelligenz
subject: Soziologische Theorie
subject: Sozionik
subject: Mehragentensystem
subject: Interaktionalismus
subject: 54.72
subject: 71.02
subject: 004
subject: 300

description: Diese interdisziplinäre Arbeit präsentiert eine Architektur sozial lernfähiger Agenten. Die theoretische Basis dieser Architektur bilden mikrosoziologische Ansätze, die von Mead, Blumer und Goffman entwickelt worden sind. Im soziologischen Theorieabschnitt der Arbeit werden einige Grundkonzepte des Interaktionismus erörtert: vor allem Interaktion, Identität und Rahmen. Diese Konzepte unterbauen im Weiteren das soziologische Fundament zur Entwicklung einer Architektur lernfähiger und situationsspezifisch rahmender Agenten. Die heuristische Leistungsfähigkeit der in diesem Text skizzierten interaktionistischen Sozionik wird an einem Forschungsgegenstand demonstriert, der für die beide beteiligten Disziplinen, die Soziologie wie die Informatik, gleichermaßen von zentralem Interesse ist: soziale Probleme und Konflikte. In einem kurzen Fazit werden zum Schluss die Potentiale dieses interdisziplinären Ansatzes eruiert sowie seine Weiterentwicklungsmöglichkeiten erläutert.
description: This inter-disciplinary work presents an architecture of agents capable of social learning. Micro- sociological approaches developed by Mead, Blumer, and Goffman are the theoretical basis of this architecture. Some basic concepts, namely interaction, identity, and frame, are discussed in the sociological part of the paper. In the following, these concepts build the sociological fundament applied to the development of an architecture of learning and situation-specifically framing agents. The heuristic strength of this interactionist socionic approach sketched out in this text is demonstrated by referring it to a research subject that is of central interest for both disciplines, sociology and computer science, alike: social problems and conflict. In a short summary, the potency of this inter-disciplinary approach is determined as well as the potentials of its improvement.
PARRANDACHILIK FERMALARIDA MIKROSUVO'TLARDAN OZIQA VA ISHLATILGAN OQOVA SUVLARNI MAKROSUVO'TLARI YORDAMIDA TOZALASH USULLARI
Creators: name: Azimov, Shavkat
name: Ibragimova, Mehribonu
name: Mirakbarova, Moxira
Publisher: name: Zenodo
Year: 2025

description: Maqolada parrandachilik fermalaridan chiqadigan oqava suvlarni mikrosuvo’tlar ishtirokida bioremediatsiya yo’li bilan tozalashning samaradorligi va ekologik ahamiyati tekshirib, tahlil qilindi. Parrandachilik sanoati tomonidan chiqariladigan oqava suvlar, o’zida ko’plab zararli moddalarga ega bo’lib, atrof-muhitga katta zarar yetkazishi mumkin. Mikrosuvo’tlar asosidagi bioremediatsiya esa ushbu suvlarni tabiiy va samarali holatda tozalashning bir yo’li sifatida qaralgan
Technological challenges and opportunities to plastics valorization in the context of a circular economy in Europe
Creators: name: Schultz, Felix Carl
name: Reinhardt, Robert Jaroslav
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 330

description: The transition to a fully-fledged circular economy (CE) has proven to be challenging for many industries. Despite possible competitive advantages of moving industries towards CE activities, their practical implementation is still limited. This communication article delivers ad interim an identification of technological challenges and opportunities for the European plastics industries to facilitate circularity ambitions. In applying the qualitative-empirical Gioia-method utilizing the GABEK-WinRelan tool, specific technological challenges and opportunities for plastics industries were identified. Major findings indicate that technological challenges for plastics are predominantly seen in (C1) secondary material contamination; (C2) recycling processing issues; (C3) production processing issues; (C4) production material quality issues; and (C5) end-product quality issues, while the opportunities lie in (O1) effective secondary material management; (O2) innovation for chemical recycling; (O3) innovation for production and processability; (O4) innovative materials; and (O5) innovative end-products. This article contributes to the contemporary debate of CE challenges and opportunities to plastics valorization by highlighting the promising role of chemical recycling on a monomer-level as a key facilitator to a circular plastics economy. Further, it was found that technological transitions must be coupled with compatible market incentive mechanisms guided by effective institutional structures.
Formation and Structure of Low Density Exo-Neptunes
Creators: name: Rogers, Leslie A.
name: Bodenheimer, Peter
name: Lissauer, Jack J.
name: Seager, Sara
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Kepler has found hundreds of Neptune-size (2-6 R_Earth) planet candidates within 0.5 AU of their stars. The nature of the vast majority of these planets is not known because their masses have not been measured. Using theoretical models of planet formation, evolution and structure, we explore the range of minimum plausible masses for low-density exo-Neptunes. We focus on highly irradiated planets with T_eq>=500K. We consider two separate formation pathways for low-mass planets with voluminous atmospheres of light gases: core nucleated accretion and outgassing of hydrogen from dissociated ices. We show that Neptune-size planets at T_eq=500K with masses as small as a few times that of Earth can plausibly be formed core nucleated accretion coupled with subsequent inward migration. We also derive a limiting low-density mass-radius relation for rocky planets with outgassed hydrogen envelopes but no surface water. Rocky planets with outgassed hydrogen envelopes typically have computed radii well below 3 R_Earth. For both planets with H/He envelopes from core nucleated accretion and planets with outgassed hydrogen envelopes, we employ planet interior models to map the range of planet mass--envelope mass--equilibrium temperature parameter space that is consistent with Neptune-size planet radii. Atmospheric mass loss mediates which corners of this parameter space are populated by actual planets and ultimately governs the minimum plausible mass at a specified transit radius. We find that Kepler's 2-6 R_Earth planet candidates at T_eq=500--1000K could potentially have masses less than ~4 M_Earth. Although our quantitative results depend on several assumptions, our qualitative finding that warm Neptune-size planets can have masses substantially smaller than those given by interpolating the masses and radii of planets within our Solar System is robust.
description: 17 pages, 9 figures, accepted for publication in ApJ
Amtliche Mitteilungen der Universität Dortmund Nr. 05/78
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Dortmund
Year: 1978
Subjects: subject: 080

description: Studienordnung für den Diplomstudiengang Elektrotechnik an der Universität Dortmund
description: Verlängerung der vorläufigen Promotionsordnung der Abteilung Bauwesen
description: Amtliche Mitteilungen der Universität Dortmund ; 5, 1978
On the stability of the evolution Galerkin schemes applied to a two-dimensional wave equations system
Creators: name: Medviďová-Lukáčová, Mária
name: Warnecke, Gerald
name: Zahaykah, Yousef
Publisher: name: TUHH Universitätsbibliothek
Year: 2004
Subjects: subject: hyperbolic systems
subject: wave equation
subject: evolution Galerkin schemes
subject: discrete Fouriertransformation
subject: amplification matrix
subject: 510: Mathematik
subject: Hyperbolisches System
subject: Evolutionsoperator
subject: Galerkin-Methode
subject: Diskrete Fourier-Transformation
subject: 510
subject: 65M06:Finite difference methods
subject: 35L05:Wave equation
subject: 65M06
subject: 35L05

description: The subject of the paper is the analysis of stability of the evolution Galerkin (EG) methods for the two-dimensional wave equation system. We apply von Neumann analysis and use the Fourier transformation to estimate the stability limits of both the first and the second order EG methods.
Collective Flows in a Transport Approach
Creators: name: Plumari, S.
name: Baran, V.
name: Di Toro, M.
name: Greco, V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We introduce a transport approach at fixed shear viscosity to entropy ratio $\etas$ to study the generation of collective flows in ultra-relativistic heavy-ion collisions. Transport theory supplies a covariant approach valid also at large $\etas$ and at intermediate transverse momentum $p_T$, where deviations from equilibrium is no longer negligible. Such an approach shows that at RHIC energies a temperature dependent $\etas$ enhances significantly the $v_4/v_2^2$ respect to the case of constant $\etas$. Furthermore if NJL chiral dynamics is self-consistently implemented we show that it does not modify the relation between $v_2$ and $\etas$.
description: 4 pages, 4 figures, Proceedings of Hot Quarks 2010, 21-26 June 2010 Las Londe Les Maures; to appear in Journal of Physics: Conference Series
Amtliche Mitteilungen der Universität Dortmund Nr. 08/78
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Dortmund
Year: 1978
Subjects: subject: 080

description: Änderung der Studienordnung der Abteilung Statistik
description: Änderung und endgültige Genehmigung der Diplomprüfungsordnung der Abteilung Statistik
description: Amtliche Mitteilungen der Universität Dortmund ; 8, 1978
Fine tuning of phase qubit parameters for optimization of fast single-pulse readout
Creators: name: Revin, Leonid S.
name: Pankratov, Andrey L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze a two-level quantum system, describing the phase qubit, during a single-pulse readout process by a numerical solution of the time-dependent Schroedinger equation. It has been demonstrated that the readout error has a minimum for certain values of the system`s basic parameters. In particular, the optimization of the qubit capacitance and the readout pulse shape leads to significant reduction of the readout error. It is shown that in an ideal case the fidelity can be increased to almost 97% for 2 ns pulse duration and to 96% for 1 ns pulse duration.
description: 4 pages, 5 figures
Generalized Geologic Map for Land-Use Planning: Jackson County, Kentucky
Creators: name: Hodges, Edward C.
name: Davidson, Bart
name: Carey, Daniel I.
Publisher: name: Kentucky Geological Survey, University of Kentucky
Year: 2006

description: Abstract:
This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.
Investigations concerning the residence time distribution of twin-screw-extrusion processes as indicator for inherent mixing
Creators: name: Wesholowski, Jens
name: Berghaus, Andreas
name: Thommes, Markus
Publisher: name: TU Dortmund
Year: 2018
Subjects: subject: modeling
subject: process control
subject: residence time
subject: twin-dispersion-model
subject: twin-screw-extrusion
subject: 660
subject: Doppelschneckenextruder
subject: Modellierung
subject: Pharmazeutische Technologie

description: Over recent years Twin-Screw-Extrusion (TSE) has been established as a platform technology for pharmaceutical manufacturing. Compared to other continuous operation, one of the major benefits of this method is the combination of several unit operations within one apparatus. Several of these are linked to the Residence Time Distribution (RTD), which is typically expressed by the residence time density function. One relevant aspect for pharmaceutical processes is the mixing capacity, which is represented by the width of this distribution. In the frame of this study the influence of the mass flow, the temperature and the screw-barrel clearance were investigated for a constant barrel load (specific feed load, SFL). While the total mass flow as well as the external screw diameter affected the mixing performance, the barrel temperature had no influence for the investigated range. The determined results were additionally evaluated with respect to a fit to the Twin-Dispersion-Model (TDM). This model is based on the superimposition of two mixing functions. The correlations between varied process parameters and the obtained characteristic model parameters proved this general physical view on extrusion.
description: Pharmaceutics : Jg.: 10, Heft: 4 | S. 207-1-207-10;
A Barometer for Sustainable Travel and Tourism to track responsible consumer behaviour. Insights from Canada, Russia, Switzerland, and the USA travel markets
Creators: name: Priskin, Julianna
name: Ponnapureddy, Sindhuri
name: Dodds, Rachel
name: Belozerova, Oxana
name: Day, Jonathon
Publisher: name: Zenodo
Year: 2019
Subjects: monitor
observatory
sustainability
CSR
management
destination
markets

description: The project developed a Barometer for Sustainable Travel and Tourism (BSTT) markets to understand the role and meaning of sustainability criteria in bookings. The barometer consists of a series of relevant questions to estimate market understanding of sustainable tourism products that can be applied each year and internationally. This report details a draft framework for the BSTT with results from Canada, Russia, Switzerland, and the USA. The proposed barometer enables the monitoring of sustainable tourism markets worldwide or at a specific destination.
description: + ID der Publikation: hslu_85270 + Art des Beitrages: Working Paper + Sprache: Englisch + Letzte Aktualisierung: 2021-09-21 09:32:25 + Reihe: ITW Working Paper Series, 9/2019 + Fussnote: ISSN 1662-9019
Proteomic profiling of the pathogenic fungus Cryptococcus neoformans upon regulation of the cyclic-AMP/protein kinase A signaling pathway
Creators: name: Geddes, Jennifer
Publisher: name: University of British Columbia
Year: 2015

description: The pathogenic yeast Cryptococcus neoformans causes life-threatening meningoencephalitis in immunocompromised individuals. The ability of C. neoformans to cause disease depends on the elaboration of virulence factors including a polysaccharide capsule, melanin deposition in the cell wall, the ability to grow at 37°C, and the secretion of extracellular enzymes. The cyclic-AMP/Protein Kinase A (PKA) signal transduction pathway is a key regulator of virulence in C. neoformans and may also regulate the trafficking of virulence factors. The influence of PKA1 expression on the intracellular and extracellular proteomes and identification of Pka1 phosphorylation targets using phosphoproteomics have not been investigated for C. neoformans. In our current study, I performed quantitative proteomics using a galactose-inducible/glucose-repressible expression strain of the PKA1 gene to identify regulated proteins in the secretome and proteome. During investigation of the secretome, five proteins showed changes in extracellular abundance upon Pka1 induction. These included the Cig1 and Aph1 proteins with known roles in virulence, as well as an α-amylase, a glyoxal oxidase, and a novel protein. Targeted proteomics of these Pka1-regulated proteins allowed us to identify the secreted proteins in biological samples suggesting their potential as biomarkers of infection. During investigation of the intracellular proteome, I identified a broad and conserved influence by PKA1. Furthermore, an analysis of protein-ptotein interactions emphasized the impact of PKA activity on several clusters of proteins involving translation and the ribosome, the proteasome, and diverse metabolic processes. Lastly, a phosphoproteomic study identified six potential targets of Pka1 phosphorylation including the master iron regulator, Cir1. Construction of site-directed mutants showed that Pka1 phosphorylation of Cir1 impacted the production of capsule and melanin, cell size, and the ability to grow under low iron conditions. Overall, the data presented in this thesis have contributed a better understanding of the broad and conserved influence of Pka1 on cellular regulation and secretion in C. neoformans, and the discovery of potential biomarkers may facilitate the monitoring of disease progression. Additionally, the identification of new Pka1 phosphorylation targets present opportunities for the development of a molecular understanding of the regulation of virulence as well as novel therapeutic strategies for treatment of cryptococcosis.
State-Dependent Relay Channel with Private Messages with Partial Causal and Non-Causal Channel State Information
Creators: name: Akhbari, Bahareh
name: Mirmohseni, Mahtab
name: Aref, Mohammad Reza
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we introduce a discrete memoryless State-Dependent Relay Channel with Private Messages (SD-RCPM) as a generalization of the state-dependent relay channel. We investigate two main cases: SD-RCPM with non-causal Channel State Information (CSI), and SD-RCPM with causal CSI. In each case, it is assumed that partial CSI is available at the source and relay. For non-causal case, we establish an achievable rate region using Gel'fand-Pinsker type coding scheme at the nodes informed of CSI, and Compress-and-Forward (CF) scheme at the relay. Using Shannon's strategy and CF scheme, an achievable rate region for causal case is obtained. As an example, the Gaussian version of SD-RCPM is considered, and an achievable rate region for Gaussian SD-RCPM with non-causal perfect CSI only at the source, is derived. Providing numerical examples, we illustrate the comparison between achievable rate regions derived using CF and Decode-and-Forward (DF) schemes.
description: 5 pages, 2 figures, to be presented at the IEEE International Symposium on Information Theory (ISIT 2010), Austin, Texas, June 2010
Radial Nano-Heterojunctions Consisting of CdS Nanorods Wrapped by 2D CN:PDI Polymer with Deep HOMO for Photo-Oxidative Water Splitting, Dye Degradation and Alcohol Oxidation
Creators: name: Kumar, Pawan
Publisher: name: figshare
Year: 2023
Subjects: Crystallography
Bioinorganic chemistry
F-block chemistry
Inorganic green chemistry
Main group metal chemistry

description: Solar energy harvesting using semiconductor photocatalysis offers an enticing solution to two of the biggest societal challenges, energy scarcity and environmental pollution. After decades of effort, no photocatalyst exists which can simultaneously meet the demand for excellent absorption, high quantum efficiency and photochemical resilience/durability. While CdS is an excellent photocatalyst for hydrogen evolution, pollutant degradation and organic synthesis, photocorrosion of CdS leads to the deactivation of the catalyst. Surface passivation of CdS with 2D graphitic carbon nitrides (CN) such as g-C3N4 and C3N5 has been shown to mitigate the photocorrosion problem but the poor oxidizing power of photogenerated holes in CN limits the utility of this approach for photooxidation reactions. We report the synthesis of exfoliated 2D nanosheets of a modified carbon nitride constituted of tris-s-triazine (C6N7) linked pyromellitic dianhydride polydiimide (CN:PDI) with a deep oxidative highest occupied molecular orbital (HOMO) position, which ensures sufficient oxidizing power for photogenerated holes in CN. The heterojunction formed by the wrapping of mono-/few layered CN:PDI on CdS nanorods (CdS/CN:PDI) was determined to be an excellent photocatalyst for oxidation reactions including photoelectrochemical water splitting, dye decolorization and the photocatalytic conversion of benzyl alcohol to benzaldehyde. Extensive structural characterization using HR-TEM, Raman, XPS, etc., confirmed wrapping of few-layered CN:PDI on CdS nanorods. The increased photoactivity in CdS/CN:PDI catalyst was ascribed to facile electron transfer from CdS to CN:PDI in comparison to CdS/g-C3N4, leading to an increased electron density on the surface of the photocatalyst to drive chemical reactions.
Amtliche Mitteilungen der Universität Dortmund Nr. 06/78
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Dortmund
Year: 1978
Subjects: subject: 080

description: Änderung der Promotionsordnung für die Abteilung Elektrotechnik der Universität Dortmund
description: Verlängerung der Genehmigungsfrist der vorläufigen Diplom-Prüfungsordnung für die Diplomprüfung in Elektrotechnik
description: Amtliche Mitteilungen der Universität Dortmund ; 6, 1978
Neural network generated parametrizations of deeply virtual Compton form factors
Creators: name: Kumericki, Kresimir
name: Mueller, Dieter
name: Schafer, Andreas
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We have generated a parametrization of the Compton form factor (CFF) H based on data from deeply virtual Compton scattering (DVCS) using neural networks. This approach offers an essentially model-independent fitting procedure, which provides realistic uncertainties. Furthermore, it facilitates propagation of uncertainties from experimental data to CFFs. We assumed dominance of the CFF H and used HERMES data on DVCS off unpolarized protons. We predict the beam charge-spin asymmetry for a proton at the kinematics of the COMPASS II experiment.
description: 16 pages, 5 figures
Categorial Minimalist Grammar
Creators: name: Amblard, Maxime
name: Lecomte, Alain
name: Retoré, Christian
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computation and Language (cs.CL)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We first recall some basic notions on minimalist grammars and on categorial grammars. Next we shortly introduce partially commutative linear logic, and our representation of minimalist grammars within this categorial system, the so-called categorial minimalist grammars. Thereafter we briefly present λμ-DRT (Discourse Representation Theory) an extension of λ-DRT (compositional DRT) in the framework of λμcalculus: it avoids type raising and derives different readings from a single semantic representation, in a setting which follows discourse structure. We run a complete example which illustrates the various structures and rules that are needed to derive a semantic representation from the categorial view of a transformational syntactic analysis.
title: Centenary (Historiography)
title: Centenary (Historiography)
Creators: name: Dülffer, Jost
Publisher: name: BSB - Bavarian State Library
Year: 2020
Subjects: subject: Weltkrieg [1914-1918]
subject: Kollektives Gedächtnis
subject: World War, 1914-1918
subject: Collective memory

description: Innovative historical scholarship played an important role in the shaping of memory during the centenary of the First World War. It guided international public memory, was part of it and as such summarized the events. The war guilt question, global warfare and its social and cultural consequences as well as regional developments in all parts of the world contributed to new perspectives. Problems of peace, continuing violence and state-building in the aftermath of the First World War were also major themes of the centenary in scholarly publications. This article was written in January 2020.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
title: Food and Nutrition (France)
title: Food and Nutrition (France)
Creators: name: Le Bras, Stéphane
name: Cronier, Emmanuelle
Publisher: name: BSB - Bavarian State Library
Year: 2020
Subjects: subject: World War, 1914-1918
subject: Food supply--France

description: In times of war, food becomes a major concern in military and civilian matters. This contribution aims to discuss the food situation in France and its specificities between 1914 and 1918. It focuses on food supply both for the military and the home front, in order to understand how those issues are connected and entangled. It covers official directives, as well as everyday life and the impact on individuals and collective groups, to demonstrate how food is part of the process of totalization and how the French reacted and adapted on both societal and state levels.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Controlling electron transfer at sensitized TiO₂ surfaces
Creators: name: Blair, Amber Dawn
Publisher: name: University of British Columbia
Year: 2015

description: A series of three bis-tridentate ruthenium(II) complexes containing one cyclometalating ligand with terminal triphenylamine (TPA) substituents have been synthesized and characterized for insight into electron transfer reactions at TiO₂ surfaces. The structure of each complex conforms to a molecular scaffold formulated as [Ru(II)(TPA-2,5-thiophene-pbpy)(H₃tctpy)] (pbpy = 6-phenyl-2,2’-bipyridine; H₃tctpy = 4,4’,4”-tricarboxy-2,2’:6’,2”-terpyridine), where an electron-donating group (EDG) or an electron-withdrawing group (EWG) is installed about the anionic ring of the pbpy ligand and methyl groups surrounding the TPA-thiophene bridge. Modification of the anionic ring of the pbpy chelated with EDGs and EWGs enables the modulation of the Ru(III)/Ru(II) redox potential over 140 mV. This property offers the opportunity to turn on and off intramolecular hole transfer. Pulsed light laser excitation of the sensitized thin film resulted in rapid excited state injection and in some cases hole transfer to TPA [TiO₂(e⁻)/Ru(III)−TPA → TiO₂(e⁻)/Ru(II)−TPA･⁺. The rate constants for charge recombination of [TiO₂(e⁻)/Ru(III)−TPA → TiO₂/Ru(II)−TPA and TiO₂(e⁻)/Ru(II)−TPA･⁺ → TiO₂/Ru(II)−TPA] were drastically affected by modification of the bridging unit and can be modulated over 5.2 – 6.2×10⁵ s ⁻¹ and 1.7 – 5.1×10⁴ s⁻¹ respectively.
title: Women's Mobilization for War (India)
title: Women's Mobilization for War (India)
Creators: name: Das, Santanu
Publisher: name: BSB - Bavarian State Library
Year: 2020
Subjects: subject: Indien
subject: Literatur
subject: India
subject: War and literature

description: This article recovers the wartime experiences, writings, and songs of women from undivided India. To do so, the article argues for a shift in the very understanding of war from “combat” to “conflict”, and stresses the need to go beyond conventional archival sources to include letters, memoirs, poems, interviews, essays as well as songs. The article considers how the category of gender intersects with that of class, religion, and literacy among others and discusses the responses of aristocrats, middle-class women, poets, and writers as well as non-literate village women from Punjab to the First World War.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Retirement expectations in Germany – towards rising social inequality?
Creators: name: Hess, Moritz
Publisher: name: TU Dortmund
Year: 2018
Subjects: subject: Retirement
subject: Germany
subject: Social inequality
subject: Expected retirement age
subject: Ageing
subject: Pension policy
subject: SOEP
subject: DEAS
subject: 300
subject: Sozioökonomisches Panel
subject: Altern |
subject: Soziale Gerechtigkeit |
subject: Rente |
subject: Deutschland |
subject: Rentenalter |

description: In the last 20 years, German policy makers have reformed the pension system and the labor market with the aim of prolonging working life. As a consequence, older workers’ employment rate and average retirement age rose. In addition to the actual behavior of today’s retiree cohorts, the reforms also influence the expected retirement age of future pensioners, the development of which will be investigated in this paper, arguing that they have adapted to the reforms and increased their expected retirement age. The analyses are based on data from the SOEP and DEAS survey and results show an increase of the expected retirement age. However, while high-skilled workers both want and expect to retire late, low-skilled workers prefer to retire early but expect that they have to work longer in order to ensure a reasonable pension. This finding hints at rising social inequality in the transition from work to retirement.
description: Societies.;Vol. 8. 2018, (3), p. 50
title: Intelligence and Espionage (Norway)
title: Intelligence and Espionage (Norway)
Creators: name: Teige, Ola
name: Brandal, Nik.
Publisher: name: BSB - Bavarian State Library
Year: 2020
Subjects: subject: Norwegen
subject: Weltkrieg [1914-1918]
subject: Espionage
subject: Norway--History--1905-1940

description: Before 1914, foreign intelligence activity in Norway was limited, reflecting its status as peaceful and non-aligned. This changed with the outbreak of the First World War, as Norway’s importance for the warring powers increased due to its natural resources and its geographical position. Norway’s ports became important hubs for gathering information and providing conduits to enemy territory. Simultaneously, the strain put on Norwegian society by the large flow of migrants and the fear that subversive acts of foreign espionage could endanger Norway’s neutrality, led to widespread xenophobia. This, in turn, resulted in the build-up of a Norwegian counterintelligence and the passing of new legislation that authorized state intervention into almost every aspect of society.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War