cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Thermocharge of a hot spot in an electrolyte solution
Creators: name: Majee, Arghya
name: Wüurger, Alois
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We discuss the thermoelectric properties of a locally heated micron-size volume in an electrolyte solution. We find that such a hot spot carries a net charge Q which, for an excess temperature of 10 K, may attain hundreds of elementary charges. The corresponding Seebeck electric field E increases linearly with the radius r inside the heated area, then goes through a maximum, and decays as 1/r2 at larger distances. Our results could be relevant to optothermal actuation of electrolytes and colloidal suspensions.
description: 10 pages, 5 figures
Comparison of secure and high capacity color image steganography techniques in RGB and YCbCr domains
Creators: name: Hemalatha, S.
name: Acharya, U. Dinesh
name: Renuka, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Multimedia (cs.MM)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Steganography is one of the methods used for secret communication. Steganography attempts to hide the existence of the information. The object used to hide the secret information is called as cover object. Images are the most popular cover objects used for steganography. Different techniques have to be used for color image steganography and grey scale image steganography since they are stored in different ways. Color image are normally stored with 24 bit depth and grey scale images are stored with 8 bit depth. Color images can hold large amount of secret information since they have three color components. Different color spaces namely RGB (Red Green Blue), HSV (Hue, Saturation, Value), YUV, YIQ, YCbCr (Luminance, Chrominance) etc. are used to represent color images. Color image steganography can be done in any color space domain. In this paper color image steganography in RGB and YCbCr domain are compared. The secret information considered is grey scale image. Since RGB is the common method of representation, hiding secret information in this format is not secure.
description: Journal, 9 pages
A Quantum Information Retrieval Approach to Memory
Creators: name: Kitto, Kirsty
name: Bruza, Peter
name: Gabora, Liane
Publisher: name: arXiv
Year: 2013
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Quantum Physics (quant-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: As computers approach the physical limits of information storable in memory, new methods will be needed to further improve information storage and retrieval. We propose a quantum inspired vector based approach, which offers a contextually dependent mapping from the subsymbolic to the symbolic representations of information. If implemented computationally, this approach would provide exceptionally high density of information storage, without the traditionally required physical increase in storage capacity. The approach is inspired by the structure of human memory and incorporates elements of Gardenfors' Conceptual Space approach and Humphreys et al.'s matrix model of memory.
description: 8 pages; 2 figures
Kirche unter Atheisten, Kirche in einer säkularen Gesellschaft oder Kirche in einer priviligierten Diaspora?
Creators: name: Haubold, Arndt
Publisher: name: Lutherische Kirche in der Welt
Year: 1970

description: Lutherische Kirche in der Welt, Bd. 59 (2012): Lutherische Kirche in der Welt, Band 59
Effect of assessment error and private information on stern-judging in indirect reciprocity
Creators: name: Uchida, Satoshi
name: Sasaki, Tatsuya
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Stern-judging is one of the best-known assessment rules in indirect reciprocity. Indirect reciprocity is a fundamental mechanism for the evolution of cooperation. It relies on mutual monitoring and assessments, i.e., individuals judge, following their own assessment rules, whether other individuals are "good" or "bad" according to information on their past behaviors. Among many assessment rules, stern-judging is known to provide stable cooperation in a population, as observed when all members in the population know all about others' behaviors (public information case) and when the members never commit an assessment error. In this paper, the effect of assessment error and private information on stern-judging is investigated. By analyzing the image matrix, which describes who is good in the eyes of whom in the population, we analytically show that private information and assessment error cause the collapse of stern-judging: all individuals assess other individuals as "good" at random with a probability of 1/2.
description: 18 pages and 2 figures
title: Nitrogen turnover in a repeatedly manured arid subtropical soil: Incubation studies with 15N isotopes
Creators: name: Khanal, Gunadhish
name: Wachendorf, Christine
name: Dittert, Klaus
name: Willich, Melanie
name: Dietz, Herbert
name: Bürkert, Andreas
name: Ingold, Mariko
Publisher: name: Universität Kassel
Year: 2019
Subjects: subject: 15N‐labeled manure
subject: C and N turnover
subject: oasis agriculture
subject: repeated manure application
subject: 570
subject: 580
subject: Stickstoff-15
subject: Oase
subject: Landwirtschaft
subject: Organisches Düngemittel
subject: Stickstoffversorgung

description: Gefördert im Rahmen des Projekts DEAL
Particle Interactions and Statistical Mechanics of Plasma
Creators: name: S G Siddanth
Publisher: name: figshare
Year: 2022
Subjects: subject: Plasma Physics
subject: 20299 Atomic, Molecular, Nuclear, Particle and Plasma Physics not elsewhere classified
subject: FOS: Physical sciences
subject: 10506 Statistical Mechanics, Physical Combinatorics and Mathematical Aspects of Condensed Matter
subject: FOS: Mathematics
subject: 20203 Particle Physics

description: Plasma is an ionized gas composed of free electrons, ions, atoms and molecules. The charged particles contained in the plasma environment are associated with self- generated and self-consistent electric and magnetic fields.This paper would cater to explaining the particle interactions in plasma and its corresponding statistical plasma mechanics. It would also review the theoretical models of the distribution functions in phase space of that holds good for both relativistic and non-relativistic plasma.
Comparing the Performance of Different x86 SIMD Instruction Sets for a Medical Imaging Application on Modern Multi- and Manycore Chips
Creators: name: Hofmann, Johannes
name: Treibig, Jan
name: Hager, Georg
name: Wellein, Gerhard
Publisher: name: arXiv
Year: 2014
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: Single Instruction, Multiple Data (SIMD) vectorization is a major driver of performance in current architectures, and is mandatory for achieving good performance with codes that are limited by instruction throughput. We investigate the efficiency of different SIMD-vectorized implementations of the RabbitCT benchmark. RabbitCT performs 3D image reconstruction by back projection, a vital operation in computed tomography applications. The underlying algorithm is a challenge for vectorization because it consists, apart from a streaming part, also of a bilinear interpolation requiring scattered access to image data. We analyze the performance of SSE (128 bit), AVX (256 bit), AVX2 (256 bit), and IMCI (512 bit) implementations on recent Intel x86 systems. A special emphasis is put on the vector gather implementation on Intel Haswell and Knights Corner microarchitectures. Finally we discuss why GPU implementations perform much better for this specific algorithm.
description: arXiv admin note: text overlap with arXiv:1401.3615
Der seelsorgerliche Dienst der Bischöfe an den Pfarrerinnen und Pfarrern
Creators: name: Weiss, Hans-Martin
Publisher: name: Lutherische Kirche in der Welt
Year: 1970

description: Lutherische Kirche in der Welt, Bd. 59 (2012): Lutherische Kirche in der Welt, Band 59
Cochlear Implantation and Older Age: Exploring the Effect of Different Stimulation Rates on Cognitive Performance
Creators: name: Di Nardi, Cecilia
Publisher: name: Royal College of Surgeons in Ireland
Year: 2022
Subjects: subject: 111702 Aged Health Care
subject: FOS: Health sciences
subject: 110315 Otorhinolaryngology
subject: FOS: Clinical medicine

description: The most documented cognitive changes in the aging brain are slower processing speed and decline in executive functions such as working memory (WM), attention and cognitive flexibility. If the stimulation rate (SR) in cochlear implant (CI) settings is not optimised for the aging population, elderly CI listeners need to devote extra cognitive resources for successful speech understanding, with the increase of listening effort. The overall aim of this PhD is to explore how SR in older CI users affects listening effort and cognitive processing, by evaluating the feasibility of using a bimodal task to extract a visual-related neural marker of effort. An exploratory study on 19 normal hearing (NH) controls was carried out to optimise the task design and sensitivity, along with event-related potentials (ERPs) measures. For the main study the bimodal task was performed by 18 elderly CI users at three SRs: manufacturer standard SR, low-SR and high-SR. The bimodal task sequentially engaged audition and vision to investigate the transfer of listening effort across modalities. Over a 3-months period, CI participants were asked to try two new MAPs. For each SR setting, CI users completed a series of tests in various cognitive domains (attention, executive function, spatial working memory and social cognition) and ERP recordings while performing the bimodal task. The NH study highlighted that the P300 amplitude indexed the level of task-related attention. Results on CI users showed that speech scores in noise were significantly poorer at high-SR, and the visual P300 amplitude was larger when accomplishing the bimodal task at high-SR, which might confirm the need for extra attentional resources at this setting. However, there was little or no effect of SR on cognitive tests. This thesis presents a viable approach to identify a visual-related marker of effort in CI users – artefact free – by developing a bimodal task, which could be an appropriate step to effectively tailor CI parameters for each individual.
A random walk with heavy flavours
Creators: name: Mazumder, Surasree
name: Bhattacharyya, Trambak
name: Das, Santosh K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We focus on evaluating transport coefficients like drag and diffusion of heavy quarks (HQ) passing through Quark Gluon Plasma using perturbative QCD (pQCD). Experimental observable like nuclear suppression factor (RAA) of HQ is evaluated for both zero and non-zero baryonic chemical potential (μ_B) scenarios using Fokker- Planck equation. Theoretical estimates of RAA are contrasted with experiments.
description: Invited article in Special Issue: "Physics of Quark Gluon Plasma: An Update and Status Report" in Advances in High Energy Physics
title: Geehrter Herr! Wir übergeben Ihnen den beiliegenden Aufruf an das deutsche Volk zu einer National-Subscription für die Hinterbliebenen Auerswald's, mit dem Vertrauen, daß Sie diesem Unternehmen durch Sammlung von Beiträgen Ihre thätige Mitwirkung zu widmen die Güte haben werden. ...; [1848]
title: Marienwerder, im Oktober 1848
titleType: Subtitle
Creators: name: Kries, ...
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Ohne Titel
Reaction cross sections of hypernuclei and the shrinkage effect
Creators: name: Akaishi, T.
name: Hagino, K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We calculate the reaction cross sections for $^6{\rm Li}$ and $^7_Λ{\rm Li}$ on a $^{12}{\rm C}$ target at $100\,{\rm MeV/nucleon}$ using the Glauber theory. To this end, we assume a two-body cluster structure for $^6$Li and $^7_Λ{\rm Li}$, and employ the few-body treatment of the Glauber theory, that is beyond the well known optical limit approximation. We show that the reaction cross section for $^7_Λ{\rm Li}$ is smaller than that for $^6$Li by about 4\%, reflecting the shrinkage effect of the $Λ$ particle.
description: 4 pages, 1 figure
Formen der Gemeinschaft reformierter und lutherischer Gemeinden in der protestantíschen Kirche im Elsass
Creators: name: Hauss, Jean Luc
Publisher: name: Lutherische Kirche in der Welt
Year: 1970

description: Lutherische Kirche in der Welt, Bd. 59 (2012): Lutherische Kirche in der Welt, Band 59
Quasiisometries of negatively curved homogeneous manifolds associated with Heisenberg groups
Creators: name: Xie, Xiangdong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 22E25, 30L10, 20F65

description: We study quasiisometries between negatively curved homogeneous manifolds associated with diagonalizable derivations on Heisenberg algebras. We classify these manifolds up to quasiisometry, and show that all quasiisometries between such manifolds (except when they are complex hyperbolic spaces) are almost similarities. We prove these results by studying the quasisymmetric maps on the ideal boundary of these manifolds.
Verfassungsprozess zur Entstehung der Evangelischen Kirche in Mitteldeutschland
Creators: name: Krüger, Marita
Publisher: name: Lutherische Kirche in der Welt
Year: 1970

description: Lutherische Kirche in der Welt, Bd. 59 (2012): Lutherische Kirche in der Welt, Band 59
Magnetism of sodium superoxide
Creators: name: Solovyev, I. V.
name: Pchelkina, Z. V.
name: Mazurenko, V. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: By combining first-principles electronic-structure calculations with the model Hamiltonian approach, we systematically study the magnetic properties of sodium superoxide (NaO2), originating from interacting superoxide molecules. We show that NaO2 exhibits a rich variety of magnetic properties, which are controlled by relative alignment of the superoxide molecules as well as the state of partially filled antibonding molecular π_g-orbitals. The orbital degeneracy and disorder in the high-temperature pyrite phase gives rise to weak isotropic antiferromagnetic (AFM) interactions between the molecules. The transition to the low-temperature marcasite phase lifts the degeneracy, leading to the orbital order and formation of the quasi-one-dimensional AFM spin chains. Both tendencies are consistent with the behavior of experimental magnetic susceptibility data. Furthermore, we evaluate the magnetic transition temperature and type of the long-range magnetic order in the marcasite phase. We argue that this magnetic order depends on the behavior of weak isotropic as well as anisotropic and Dzyaloshinskii-Moriya exchange interactions between the molecules. Finally, we predict the existence of a multiferroic phase, where the inversion symmetry is broken by the long-range magnetic order, giving rise to substantial ferroelectric polarization.
description: 10 pages, 7 figures
Formen der Gemeinschaft reformierter und lutherischer Gemeinden in der Protestantischen Kirche in den Niederlanden
Creators: name: Fritz, Ilona
Publisher: name: Lutherische Kirche in der Welt
Year: 1970

description: Lutherische Kirche in der Welt, Bd. 59 (2012): Lutherische Kirche in der Welt, Band 59
Hands on Workshops. ENCODE report on digital competences, learning outcomes and best practices in teaching and learning
Creators: name: Fogagnolo, Marta
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2021
Subjects: L-ANT/02 Storia greca
L-ANT/03 Storia romana
L-ANT/05 Papirologia

description: The report presents the results of the feedback and competence questionnaires distributed during workshops/training activities organized by ENCODE or associated partners. These results are useful to identify eventual learning needs, measure the improvement in digital competences and design teaching materials and programmes of next training events. The present analysis is based on data collected by the following events (in chronological order): - the “Epigrafia digitale e EpiDoc Epigrafia greca” Workshop, held by A. Bencivenni and I. Vagionakis within the Greek Epigraphy Class of the MA in Classics/Ancient History/Archaeology of the University of Bologna (October, 12th-14th, 2020) - the “ENCODE Greek and Latin Epigraphy Workshop”, organized by the Department of History and Cultures of the University of Bologna, part of the first Multiplier Event of the ENCODE Project (January, 26th-29th, 2021) - the “EpiDoc Workshop London/Bologna”, organized by G. Bodard (Institute of Classical Studies, University of London) and I. Vagionakis (Department of History and Cultures, University of Bologna), held on April, 12th- 16th, 2021 - the “Edizioni digitali di testi sanscriti: introduzione a xml e tei” Workshop, organized by G. Buriola, M. Franceschini, I. Vagionakis (Department of History and Cultures, University of Bologna), held on April, 26th- 29th, 2021 - the “Linked Open Data for Written Artefacts Intensive Training”, organized by the Hiob Ludolf Centre for Ethiopian Studies of the University of Hamburg, part of the second Multiplier Event of the ENCODE project (May, 26th-28th, 2021) - the “Training Workshop Multilingual and Multicultural Digital Infrastructures for Ancient Written Artefacts”, organized by the Department of Ancient History of the Katholieke Universiteit Leuven, part of the third Multiplier Event (November, 3rd-5th, 2021) - the “ENCODE Winter School Papyrology for non-specialists” organized by the Institut für klassische Philologie of the Julius-Maximilians-Universität of Würzburg, part of the fourth Multiplier Event (February, 14th- 17th, 2022).
Large-scale Magnetic Structure Formation in 3D-MHD Turbulence
Creators: name: Malapaka, Shiva Kumar
name: Müller, Wolf-Christian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The inverse cascade of magnetic helicity in 3D-MHD turbulence is believed to be one of the processes responsible for large scale magnetic structure formation in astrophysical systems. In this work we present an exhaustive set of high resolution direct numerical simulations (DNS) of both forced and decaying 3D-MHD turbulence, to understand this structure formation process. It is first shown that an inverse cascade of magnetic helicity in small-scale driven turbulence does not necessarily generate coherent large-scale magnetic structures. The observed large-scale magnetic field, in this case, is severely perturbed by magnetic fluctuations generated by the small-scale forcing. In the decaying case, coherent large-scale structure form similar to those observed astronomically. Based on the numerical results the formation of large-scale magnetic structures in some astrophysical systems, is suggested to be the consequence of an initial forcing which imparts the necessary turbulent energy into the system, which, after the forcing shuts off, decays to form the large-scale structures. This idea is supported by representative examples e.g. cluster of galaxies.
description: 21 pages in emulateapj format. 29 figures and 1 table. Accepted for publication in APJ on 11/09/2013
Species delimitation with limited sampling: an example from rare trapdoor spider genus Cyclocosmia (Mygalomorphae, Halonoproctidae)
Creators: name: Opatova, Vera
Publisher: name: Zenodo
Year: 2023
Subjects: BPP
Bayes factor delimitation
GDI
genomic data
Phylogenomics
Speciation

description: The outcome of species delimitation depends on many factors, including conceptual framework, study design, data availability, methodology employed, and subjective decision-making. Obtaining sufficient taxon sampling in endangered or rare taxa might be difficult, particularly when non-lethal tissue collection cannot be utilized. The need to avoid overexploitation of the natural populations may thus limit the methodological framework available for downstream data analyses and bias the results. We test species boundaries in rare North American trapdoor spider genus Cyclocosmia Ausserer (1871) inhabiting the Southern Coastal Plain biodiversity hotspot with the use genomic data and two multispecies coalescent model methods. We evaluate the performance of each methodology within a limited sampling framework. To mitigate the risk of species over-splitting, common in taxa with highly structured populations, we subsequently implement a species validation step via genealogical diversification index (gdi), which accounts for both genetic isolation and gene flow. We delimited eight geographically restricted lineages within North American Cyclocosmia, suggesting that major river drainages in the region are likely barriers to dispersal. Our results suggest that utilizing BPP in the species discovery step might be a good option for datasets comprising hundreds of loci, but fewer individuals, which may be a common scenario for rare taxa. However, we also show that such results should be validated via gdi, in order to avoid over-splitting.
description: Any type of text editor; Geneious
Funding provided by: National Science FoundationCrossref Funder Registry ID: https://ror.org/021nxhr62Award Number: DEB 1937604
Funding provided by: Evert and Marion Schligner Foundation*Crossref Funder Registry ID: Award Number:
Funding provided by: Charles UniversityCrossref Funder Registry ID: https://ror.org/024d6js02Award Number: UNCE 204069
description: Genomic data were obtained via Anchored Hybrid Enrichment (AHE) sequencing.
Die reformierte und die lutherische Bekenntnistradition und die Leistungsfähigkeit der Leuenberger Konkordie
Creators: name: Dieter, Theodor
Publisher: name: Lutherische Kirche in der Welt
Year: 1970

description: Lutherische Kirche in der Welt, Bd. 59 (2012): Lutherische Kirche in der Welt, Band 59
Theory of wind accretion
Creators: name: Shakura, N. I.
name: Postnov, K. A.
name: Kochetkova, A. Yu.
name: Hjalmarsdotter, L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A review of wind accretion in high-mass X-ray binaries is presented. We focus attention to different regimes of quasi-spherical accretion onto the neutron star: the supersonic (Bondi) accretion, which takes place when the captured matter cools down rapidly and falls supersonically toward NS magnetospghere, and subsonic (settling) accretion which occurs when plasma remains hot until it meets the magnetospheric boundary. Two regimes of accretion are separated by an X-ray luminosity of about $4\times10^{36}$ erg/s. In the subsonic case, which sets in at low luminosities, a hot quasi-spherical shell must be formed around the magnetosphere, and the actual accretion rate onto NS is determined by ability of the plasma to enter the magnetosphere due to Rayleigh-Taylor instability. We calculate the rate of plasma entry the magnetopshere and the angular momentum transfer in the shell due to turbulent viscosity appearing in the convective differentially rotating shell. We also discuss and calculate the structure of the magnetospheric boundary layer where the angular momentum between the rotating magnetosphere and the base of the differentially rotating quasi-spherical shell takes place. We show how observations of equilibrium X-ray pulsars Vela X-1 and GX 301-2 can be used to estimate dimensionless parameters of the subsonic settling accretion theory, and obtain the width of the magnetospheric boundary layer for these pulsars.
description: LaTeX, 10 pages, 5 figures; submitted to Proc. of Int. Conf. "Physics at the Magnetspheric Boundary", Geneva, Switzerland, 25-28 June, 2013
Rigidity of quasiconformal maps on Carnot groups
Creators: name: Xie, Xiangdong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Complex Variables (math.CV)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 22E25, 30L10, 53C17

description: We show that quasiconformal maps on many Carnot groups must be biLipschitz. In particular, this is the case for 2-step Carnot groups with reducible first layer. These results have implications for the rigidity of quasiisometries between negatively curved solvable Lie groups.
The Battle of the Bulge: Decay of the Thin, False Cosmic String
Creators: name: Lee, Bum-Hoon
name: Lee, Wonwoo
name: MacKenzie, Richard
name: Paranjape, M. B.
name: Yajnik, U. A.
name: Yeom, Dong-han
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the decay of cosmic strings that are trapped in the false vacuum in a theory of scalar electrodynamics in 3+1 dimensions. We restrict our analysis to the case of thin-walled cosmic strings which occur when large magnetic flux trapped inside the string. Thus the string looks like a tube of fixed radius, at which it is classically stable. The core of the string contains magnetic flux in the true vacuum, while outside the string, separated by a thin wall, is the false vacuum. The string decays by tunnelling to a configuration which is represented by a bulge, where the region of true vacuum within, is ostensibly enlarged. The bulge can be described as the meeting, of a kink soliton anti-soliton pair, along the length of the string. It can be described as a bulge appearing in the initial string, starting from the string of small, classically stable radius, expanding to a fat string of large, classically unstable (to expansion) radius and then returning back to the string of small radius along its length. This configuration is the bounce point of a corresponding O(2) symmetric instanton, which we can determine numerically. Once the bulge appears it explodes in real time. The kink soliton anti-soliton pair recede from each other along the length of the string with a velocity that quickly approaches the speed of light, leaving behind a fat tube. At the same time the radius of the fat tube that is being formed, expands (transversely) as it is no longer classically stable, converting false vacuum to the true vacuum with ever diluting magnetic field within. The rate of this expansion is determined by the energy difference between the true vacuum and the false vacuum. Our analysis could be applied to a network, of cosmic strings formed in the very early universe or vortex lines in a superheated superconductor.
description: 13 pages, 4 figures
Systems of word equations, polynomials and linear algebra: A new approach
Creators: name: Saarela, Aleksi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 68R15

description: We develop a new tool, namely polynomial and linear algebraic methods, for studying systems of word equations. We illustrate its usefulness by giving essentially simpler proofs of several hard problems. At the same time we prove extensions of these results. Finally, we obtain the first nontrivial upper bounds for the fundamental problem of the maximal size of independent systems. These bounds depend quadratically on the size of the shortest equation. No methods of having such bounds have been known before.
description: 19 pages, submitted to a journal, extended version of the conference paper arXiv:1108.3637
A slow bar in the dwarf irregular galaxy NGC 3741
Creators: name: Banerjee, Arunima
name: Patra, Narendra Nath
name: Chengalur, Jayaram N.
name: Begum, Ayesha
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using the Tremaine-Weinberg method, we measure the speed of the HI bar seen in the disk of NGC 3741. NGC 3741 is an extremely gas rich galaxy with an {H\,{\sc i}} disk which extends to about 8.3 times its Holmberg radius. It is also highly dark matter-dominated. Our calculated value of the pattern speed $Ω_p$ is 17.1 $\pm$ 3.4 km $\textrm{s}^{-1}\textrm{kpc}^{-1}$. We also find the ratio of the co-rotation radius to the bar semi-major axis to be (1.6 $\pm$ 0.3), indicating a slow bar. This is consistent with bar models in which dynamical friction results in a slow bar in dark matter dominated galaxies.
description: 7 pages, 4 figures, 2 tables Accepted for publlication in MNRAS
Antrag auf Niedersetzung eines Ausschusses für bildende Kunst; [1848]
Creators: name: Hermann, Friedrich Benedict Wilhelm von
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Beilage Nro. 1 zum Protokoll der 51. öffentlichen Sitzung vom 31. Juli 1848
Recent progress and challenges in exploiting graphics processors in computational fluid dynamics
Creators: name: Niemeyer, Kyle E
name: Sung, Chih-Jen
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: 76-04

description: The progress made in accelerating simulations of fluid flow using GPUs, and the challenges that remain, are surveyed. The review first provides an introduction to GPU computing and programming, and discusses various considerations for improved performance. Case studies comparing the performance of CPU- and GPU- based solvers for the Laplace and incompressible Navier-Stokes equations are performed in order to demonstrate the potential improvement even with simple codes. Recent efforts to accelerate CFD simulations using GPUs are reviewed for laminar, turbulent, and reactive flow solvers. Also, GPU implementations of the lattice Boltzmann method are reviewed. Finally, recommendations for implementing CFD codes on GPUs are given and remaining challenges are discussed, such as the need to develop new strategies and redesign algorithms to enable GPU acceleration.
description: In press in the Journal of Supercomputing
Jesus Christus spricht: "Meine Kraft ist in den Schwachen mächtig" (2. Korinther 12,9)
Creators: name: Guib, Reinhart
Publisher: name: Lutherische Kirche in der Welt
Year: 1970

description: Lutherische Kirche in der Welt, Bd. 59 (2012): Lutherische Kirche in der Welt, Band 59
Do we see accreting magnetars in X-ray pulsars?
Creators: name: Postnov, K. A.
name: Shakura, N. I.
name: Kochetkova, A. Yu.
name: Hjalmarsdotter, L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Strong magnetic field of accreting neutron stars ($10^{14}$ G) is hard to probe by X-ray spectroscopy but can be indirectly inferred from spin-up/spin-down measurement in X-ray pulsars. The existing observations of slowly rotating X-ray pulsars are discussed. It is shown that magnetic fields of neutron stars derived from these observations (or lower limits in some cases) fall within the standard $10^{12}$-$10^{13}$ G range. Claims about the evidence for accreting magnetars are critically discussed in the light of recent progress in understanding of accretion onto slowly rotating neutron stars in the subsonic regime.
description: LaTeX, 6 pages,submitted to Proc. Int. Conf. Physics at the Magnetospheric Boundary, Geneva, Switzerland (25-28 June, 2013)
Equivalence between an extension of teleparallelism to a Weyl geometry and general relativity
Creators: name: Formiga, J. B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Recently, an extension of teleparallelism to a Weyl geometry which allows us to easily establish conformal invariance and "geometrize" electromagnetism has been presented. In this paper, I extend a result which concerns the existence of the Schwarzschild solution to a particular class of this extension. In addition, I obtain the field equations of some models based on this extension, including the one which is equivalent to Einstein's field equations with a massless scalar field.
description: 10 pages
Magnetohydrodynamics dynamical relaxation of coronal magnetic fields. IV. 3D tilted nulls
Creators: name: Fuentes-Fernandez, Jorge
name: Parnell, Clare E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this paper we study current accumulations in 3D "tilted" nulls formed by a folding of the spine and fan. A non-zero component of current parallel to the fan is required such that the null's fan plane and spine are not perpendicular. Our aims are to provide valid magnetohydrostatic equilibria and to describe the current accumulations in various cases involving finite plasma pressure.To create our equilibrium current structures we use a full, non-resistive, magnetohydrodynamic (MHD) code so that no reconnection is allowed. A series of experiments are performed in which a perturbed 3D tilted null relaxes towards an equilibrium via real, viscous damping forces. Changes to the initial plasma pressure and to magnetic parameters are investigated systematically.An initially tilted fan is associated with a non-zero Lorentz force that drives the fan and spine to collapse towards each other, in a similar manner to the collapse of a 2D X-point. In the final equilibrium state for an initially radial null with only the current perpendicular to the spine, the current concentrates along the tilt axis of the fan and in a layer about the null point with a sharp peak at the null itself. The continued growth of this peak indicates that the system is in an asymptotic regime involving an infinite time singularity at the null. When the initial tilt disturbance (current perpendicular to the spine) is combined with a spiral-type disturbance (current parallel to the spine), the final current density concentrates in three regions: one on the fan along its tilt axis and two around the spine, above and below the fan. The increased area of current accumulation leads to a weakening of the singularity formed at the null. The 3D spine-fan collapse with generic current studied here provides the ideal setup for non-steady reconnection studies.
Is the late near-infrared bump in short-hard GRB 130603B due to the Li-Paczynski kilonova?
Creators: name: Jin, Zhi-Ping
name: Xu, Dong
name: Fan, Yi-Zhong
name: Wu, Xue-Feng
name: Wei, Da-Ming
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Short-hard gamma-ray bursts (GRBs) are widely believed to be produced by the merger of two binary compact objects, specifically by two neutron stars or by a neutron star orbiting a black hole. According to the Li-Paczynski kilonova model, the merger would launch sub-relativistic ejecta and a near-infrared/optical transient would then occur, lasting up to days, which is powered by the radioactive decay of heavy elements synthesized in the ejecta. The detection of a late bump using the {\em Hubble Space Telescope} ({\em HST}) in the near-infrared afterglow light curve of the short-hard GRB 130603B is indeed consistent with such a model. However, as shown in this Letter, the limited {\em HST} near-infrared lightcurve behavior can also be interpreted as the synchrotron radiation of the external shock driven by a wide mildly relativistic outflow. In such a scenario, the radio emission is expected to peak with a flux of $\sim 100 μ$Jy, which is detectable for current radio arrays. Hence, the radio afterglow data can provide complementary evidence on the nature of the bump in GRB 130603B. It is worth noting that good spectroscopy during the bump phase in short-hard bursts can test validity of either model above, analogous to spectroscopy of broad-lined Type Ic supernova in long-soft GRBs.
description: 4 pages, 2 figures, published in ApJ Letter
title: BUZZ: Σχεδιασμός μετατροπής οχήματος σε αυτοκινούμενη μονάδα κατοίκησης συν-δημιουργίας και εκδηλώσεων
title: BUZZ: designing the conversion of a vehicle into a mobile housing, co-creation and event hosting unit

Creators: name: Αυλωνιτης Αλεξιος
name: Γιαννακακης Πλατων
Publisher: name: Technical University of Crete
Year: 2020

description: Η παρούσα διπλωματική εργασία επιχειρεί τον σχεδιασμό μετατροπής ενός τετράτροχου οχήματος (ημιφορτηγού) σε μια υβριδική μονάδα: α. κατοίκησης β. συνδημιουργίας και διοργάνωσης καλλιτεχνικών δρώμενων (εκδηλώσεων). Η πρόταση αυτή επιχειρεί να εξερευνήσει έναν εναλλακτικό τρόπο νομαδικής κατοίκησης και συνδημιουργίας και μελετά τη δυνατότητα μεταβολής και αναπροσαρμογής τη μονάδας σύμφωνα με τον εκάστοτε περιβάλλοντα χώρο, τις ανάγκες των διαμενόντων και τις λειτουργικές απαιτήσεις.
Characterization of compact monotonically ($ω$)-monolithic spaces using system of retractions
Creators: name: Cuth, Marek
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 54C15

description: We prove that a compact space is monotonically Sokolov if and only if it is monotonically $ω$-monolithic. This gives answers to several questions of R. Rojas-Hernandez and V. V. Tkachuk.
Das Zeugnis der lutherischen Kirchen im südlichen Afrika von Christus als Hoffnung für die Welt in der Auseinandersetzung mit der Apartheid
Creators: name: Scriba, Georg
Publisher: name: Lutherische Kirche in der Welt
Year: 1970

description: Lutherische Kirche in der Welt, Bd. 58 (2011): Lutherische Kirche in der Welt, Band 58
"Wenn einer kalendern kann, kommt er durch die ganze Welt"
Creators: name: Gazer, Hac̣ik Rafi
Publisher: name: Lutherische Kirche in der Welt
Year: 1970

description: Lutherische Kirche in der Welt, Bd. 58 (2011): Lutherische Kirche in der Welt, Band 58
title: Исследование гидродинамики пламени в плоском канале с неподвижным поршнем
title: Study of Flame Hydrodynamics in a Flat Channel with a Fixed Piston
Creators: name: Семенов, Олег Юрьевич
Publisher: name: Издательский центр СурГУ
Year: 2019

description: В статье обсуждаются условия наблюдения эффектов, проявляющихся при распространении фронта пламени в каналах, представляющих собой систему геометрических и теплофизических параметров, влияющих на горение газовой смеси в стационарных и динамических режимах. Проведено экспериментальное исследование распространения фронта газовоздушного пламени в плоском канале с неподвижным поршнем. Обнаружено формирование во фронте пламени вихревых течений. Исследованы гидродинамика и структура пламени, зависящие от параметров эксперимента.
description: The article discusses the conditions for observing effects that manifest themselves when the flame front propagates in the channels and represents a system of geometric and thermophysical parameters affecting the combustion of a gas mixture in stationary and dynamic modes. An experimental study of the propagation of the front of an air-gas flame in a flat channel with a fixed piston is carried out. The formation of eddy currents in the flame front is detected. The hydrodynamics and flame structure depending on the parameters of the experiment are investigated.
A Stochastic Model of Translocation of Knotted Proteins
Creators: name: Capała, Karol
name: Szymczak, Piotr
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Knotted proteins, when forced through the pores, can get stuck if the knots in their backbone tighten under force. Alternatively, the knot can slide off the chain, making translocation possible. We construct a simple energy landscape model of this process with a time-periodic potential that mimics the action of a molecular motor. We calculate the translocation time as a function of the period of the pulling force, discuss the asymptotic limits and biological relevance of the results.
description: 6 pages
Hamigeran G Does Not Affect Golgi Structure or Function in HEK293 Cells
Creators: name: Singh, Ameet
name: Olivera, Catrina
name: Russell, Euan R
name: Miller, John
name: Northcote, Peter
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2022
Subjects: Uncategorized

description: The hamigerans are diterpenoid secondary metabolites isolated from the New Zealand marine sponge Hamigera tarangaensis. Of all the hamigerans that have been isolated and characterised at Victoria University of Wellington, hamigeran G showed the most potent anti-proliferative activity against a mammalian cancer cell line. We previously reported that it might be targeting the Golgi network of cells based on a chemical genomic screen on yeast (Saccharomyces cerevisiae). Here, we investigated the effects of hamigeran G on the Golgi network of mammalian cells and showed that it did not have a significant effect on Golgi apparatus morphology or Golgi network functions such as protein secretion and endocytosis. Results of this study, therefore, conclude that the Golgi network is unlikely to be the primary target of hamigeran G's anti-proliferative activity. Further work is needed to fully elucidate the mechanism of action and target(s) of hamigeran G.
Das Kirchspiel Wilstedt mit seinem Einfluss auf die weite Welt und mit dem Beeinflusstwerden von der weiten Welt
Creators: name: Hintz, Norbert
Publisher: name: Lutherische Kirche in der Welt
Year: 1970

description: Lutherische Kirche in der Welt, Bd. 58 (2011): Lutherische Kirche in der Welt, Band 58
Die Lage der Evangelischen Kirche A.B. in Rumänien zwanzig Jahre nach dem Umbruch
Creators: name: Rehner, Wolfgang H.
Publisher: name: Lutherische Kirche in der Welt
Year: 1970

description: Lutherische Kirche in der Welt, Bd. 58 (2011): Lutherische Kirche in der Welt, Band 58
The mixed kappa and delta opioid receptor agonist, MP1104, attenuates chemotherapy-induced neuropathic pain
Creators: name: Atigari, Diana
name: Paton, Kelly
name: Uprety, Rajendra
name: Váradi, András
name: Alder, Amy
name: Scouller, Brittany
name: Miller, John
name: Majumdar, Susruta
name: Kivell, Bronwyn
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2022
Subjects: subject: 111599 Pharmacology and Pharmaceutical Sciences not elsewhere classified
subject: FOS: Clinical medicine
subject: 110999 Neurosciences not elsewhere classified
subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Effective treatments for chronic pain without abuse liability are urgently needed. One in 5 adults suffer chronic pain and half of these patients report inefficient treatment. Mu opioid receptor agonists (MOP), including oxycodone, tramadol and morphine, are often prescribed to treat chronic pain, however, use of drugs targeting MOP can lead to drug dependency, tolerance and overdose deaths. Kappa opioid receptor (KOP) agonists have antinociceptive effects without abuse potential; however, they have not been utilised clinically due to dysphoria and sedation. We hypothesise that mixed opioid receptor agonists targeting the KOP and delta opioid receptor (DOP) would have a wider therapeutic index, with the rewarding effects of DOP negating the negative effects of KOP. MP1104, an analogue of 3-Iodobenzoyl naltrexamine, is a novel mixed opioid receptor agonist with potent antinociceptive effects mediated via KOP and DOP in mice without rewarding or aversive effects. In this study, we show MP1104 has potent, long-acting antinociceptive effects in the warm-water tail-withdrawal assay in male and female mice and rats; and is longer acting than morphine. In the paclitaxel-induced neuropathic pain model in mice, MP1104 reduced both mechanical and cold allodynia and unlike morphine, did not produce tolerance when administered daily for 23 days. Moreover, MP1104 did not induce sedative effects in the open-field locomotor activity test, respiratory depression in mice using whole-body plethysmography, or have cross-tolerance with morphine. This data supports the therapeutic development of mixed opioid receptor agonists, particularly mixed KOP/DOP agonists, as non-addictive pain medications with reduced tolerance.
Lectures on Designing Screening Experiments
Creators: name: D'yachkov, Arkadii G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Designing Screening Experiments (DSE) is a class of information - theoretical models for multiple - access channels (MAC). We discuss the combinatorial model of DSE called a disjunct channel model. This model is the most important for applications and closely connected with the superimposed code concept. We give a detailed survey of lower and upper bounds on the rate of superimposed codes. The best known constructions of superimposed codes are considered in paper. We also discuss the development of these codes (non-adaptive pooling designs) intended for the clone - library screening problem. We obtain lower and upper bounds on the rate of binary codes for the combinatorial model of DSE called an adder channel model. We also consider the concept of universal decoding for the probabilistic DSE model called a symmetric model of DSE.
description: 66 pages
Discourses of Vision in Nineteenth-Century Britain: Seeing, Thinking, Writing, by Jonathan Potter
Creators: name: Warren, Treena Kay
Publisher: name: Victorian Network
Year: 2020

description: BOOK REVIEW Discourses of Vision in Nineteenth-Century Britain: Seeing, Thinking, Writing“, by Jonathan Potter (Basingstoke: Palgrave Macmillan, 2018). 269 pp. Hardback, £59.99. Reviewed by Treena Kay Warren.
description: Victorian Network, Vol. 9 (2020): Victorian Visions
Divergence of Dynamical Conductivity at Certain Percolative Superconductor-Insulator Transitions
Creators: name: Loh, Yen Lee
name: Dhakal, Rajesh
name: Neis, John F.
name: Moen, Evan M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Random inductor-capacitor (LC) networks can exhibit percolative superconductor-insulator transitions (SITs). We use a simple and efficient algorithm to compute the dynamical conductivity σ(ω,p) of one type of LC network on large (4000 x 4000) square lattices, where δ=p-p_c is the tuning parameter for the SIT. We confirm that the conductivity obeys a scaling form, so that the characteristic frequency scales as Ω~ |δ|^{νz} with νz \approx 1.91, the superfluid stiffness scales as Υ~ |δ|^t with t \approx 1.3, and the electric susceptibility scales as χ_E ~ |δ|^{-s} with s = 2νz - t \approx 2.52. In the insulating state, the low-frequency dissipative conductivity is exponentially small, whereas in the superconductor, it is linear in frequency. The sign of Im σ(ω) at small ωchanges across the SIT. Most importantly, we find that right at the SIT Re σ(ω) ~ ω^{t/νz-1} ~ ω^{-0.32}, so that the conductivity diverges in the DC limit, in contrast with most other classical and quantum models of SITs.
description: 4.2 pages, 4 figures