cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Haptic Flesh: Aesthetics of Electronic Touch
Creators: name: Kryzhanivska, Oksana
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Haptics
subject: interactive sculpture
subject: interactive art
subject: tactile interaction
subject: art theory
subject: 21st century art
subject: contemporary sculpture
subject: vibrotactile interface
subject: Fine Arts
subject: Education--Art

description: Identifying the need for novel design approaches for developing vibrotactile interfaces this study explores ways to integrate tactile sensing and feedback into interactive three-dimensional organic sculptures. With the tactile responsive materials and electronics, this practice-based inquiry explores the question of how haptic technology can become a platform of generative, creative expression. Specifically, this study focuses on generating and conveying meaning during different stages of art production with the emphasis on the design of haptic experiences with flexible sculpture. It responds to the concerns of interactive art practices, scientific inquiries into haptics, and new media studies. In this inquiry, the exploration of embedding tactile sensing and feedback technology manifests through the development of composite responsive materials and generating sculptural form. Following a bottom-up approach to design, the variations of physical elements, such as materials, vibrotactile feedback, electronic components, human interactions, and the understanding of tactile aesthetics become artistic media -- equally significant as parts of a production system. Furthermore, this system organized the variables referencing the three-dimensional model of thinking based on designing with topological forms. The abstract notions materialize in this system through a metaphoric sensory encoding and actualize in computer-controlled generated tactile response emitted from within sculptural objects. The resulting interactive artifacts demonstrate this approach and share the understanding of the topological way of three-dimensional thinking with participating audiences that engage with these interfaces by touching the soft flesh-like surfaces of organ-like sculptures. As an outcome of these interactions, new understandings arise about the abilities to generate tactile sensory experiences and their meanings. Furthermore, these works begin to pose questions about the new norm of perceiving three-dimensional art and what these experiences mean for the understanding of technological-body augmentations, and for the future of electronically-mediated tactile interaction in embedded, prosthetic, and organic flexible interfaces.
Detecting stable massive neutral particles through particle lensing
Creators: name: Amendola, Luca
name: Pettorino, Valeria
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Stable massive neutral particles emitted by astrophysical sources undergo deflection under the gravitational potential of our own galaxy. The deflection angle depends on the particle velocity and therefore non-relativistic particles will be deflected more than relativistic ones. If these particles can be detected through neutrino telescopes, cosmic ray detectors or directional dark matter detectors, their arrival directions would appear aligned on the sky along the source-lens direction. On top of this deflection, the arrival direction of non-relativistic particles is displaced with respect to the relativistic counterpart also due to the relative motion of the source with respect to the observer; this induces an alignment of detections along the sky projection of the source trajectory. The final alignment will be given by a combination of the directions induced by lensing and source proper motion. We derive the deflection-velocity relation for the Milky Way halo and suggest that searching for alignments on detection maps of particle telescopes could be a way to find new particles or new astrophysical phenomena.
description: 17 pages, 7 figures. Accepted by PRD
Killing-Yano equations with torsion, worldline actions and G-structures
Creators: name: Papadopoulos, G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We determine the geometry of the target spaces of supersymmetric non-relativistic particles with torsion and magnetic couplings, and with symmetries generated by the fundamental forms of G-structures for $G= U(n), SU(n), Sp(n), Sp(n)\cdot Sp(1), G_2$ and $Spin(7)$. We find that the Killing-Yano equation, which arises as a condition for the invariance of the worldline action, does not always determine the torsion coupling uniquely in terms of the metric and fundamental forms. We show that there are several connections with skew-symmetric torsion for $G=U(n), SU(n)$ and $G_2$ that solve the invariance conditions. We describe all these compatible connections for each of the $G$-structures and explain the geometric nature of the couplings.
description: 17 pages
Two-Round Oblivious Transfer from CDH or LPN
Creators: name: Döttling, Nico
name: Garg, Sanjam
name: Hajiabadi, Mohammad
name: Masny, Daniel
name: Wichs, Daniel
Publisher: name: CISPA
Year: 2023

description: We show a new general approach for constructing maliciously-secure two-round oblivious transfer (OT). Specifically, we provide a generic sequence of transformations to upgrade a very basic notion of two-round OT, which we call elementary OT, to UC-secure OT. We then give simple constructions of elementary OT under the Computational Diffie-Hellman (CDH) assumption or the Learning Parity with Noise (LPN) assumption, yielding the first constructions of malicious (UC-secure) two-round OT under these assumptions. Since two-round OT is complete for two-round 2-party and multi-party computation in the malicious setting, we also achieve the first constructions of the latter under these assumptions.
Lower Bounds for Local Approximation
Creators: name: Göös, Mika
name: Hirvonen, Juho
name: Suomela, Jukka
Publisher: name: arXiv
Year: 2012
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: In the study of deterministic distributed algorithms it is commonly assumed that each node has a unique $O(\log n)$-bit identifier. We prove that for a general class of graph problems, local algorithms (constant-time distributed algorithms) do not need such identifiers: a port numbering and orientation is sufficient. Our result holds for so-called simple PO-checkable graph optimisation problems; this includes many classical packing and covering problems such as vertex covers, edge covers, matchings, independent sets, dominating sets, and edge dominating sets. We focus on the case of bounded-degree graphs and show that if a local algorithm finds a constant-factor approximation of a simple PO-checkable graph problem with the help of unique identifiers, then the same approximation ratio can be achieved on anonymous networks. As a corollary of our result and by prior work, we derive a tight lower bound on the local approximability of the minimum edge dominating set problem. Our main technical tool is an algebraic construction of homogeneously ordered graphs: We say that a graph is $(α,r)$-homogeneous if its nodes are linearly ordered so that an $α$ fraction of nodes have pairwise isomorphic radius-$r$ neighbourhoods. We show that there exists a finite $(α,r)$-homogeneous $2k$-regular graph of girth at least $g$ for any $α< 1$ and any $r$, $k$, and $g$.
description: 28 pages, 9 figures
Candidate iO from Homomorphic Encryption Schemes
Creators: name: Brakerski, Zvika
name: Döttling, Nico
name: Garg, Sanjam
name: Malavolta, Giulio
Publisher: name: CISPA
Year: 2023

description: We propose a new approach to construct general-purpose indistinguishability obfuscation (iO). Our construction is obtained via a new intermediate primitive that we call split fullyhomomorphic encryption (split FHE), which we show to be sufficient for constructing iO. Specifically, split FHE is FHE where decryption takes the following two-step syntactic form: (i) A secret decryption step uses the secret key and produces a hint which is (asymptotically) shorter than the length of the encrypted message, and (ii) a public decryption step that only requires the ciphertext and the previously generated hint (and not the entire secret key), and recovers the encrypted message. In terms of security, the hints for a set of ciphertexts should not allow one to violate semantic security for any other ciphertexts. Next, we show a generic candidate construction of split FHE based on three building blocks: (i) A standard FHE scheme with linear decrypt-and-multiply (which can be instantiated with essentially all LWE-based constructions), (ii) a linearly homomorphic encryption scheme with short decryption hints (such as the Damg˚ard-Jurik encryption scheme, based on the DCR problem), and (iii) a cryptographic hash function (which can be based on a variety of standard assumptions). Our approach is heuristic in the sense that our construction is not provably secure and makes implicit assumptions about the interplay between these underlying primitives. We show evidence that this construction is secure by providing an argument in an appropriately defined oracle model. We view our construction as a big departure from the state-of-the-art constructions, and it is in fact quite simple.
D14 - A Common Origin of the Cabibbo Angle and the Lepton Mixing Angle theta^l_13
Creators: name: Hagedorn, C.
name: Meloni, D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It has been shown that the Cabibbo angle can be predicted in terms of group theoretical quantities, if the dihedral group D14 plays the role of a flavor symmetry. We extend a supersymmetric D14 model to the lepton sector and show that theta^nu_13 and the deviation of theta^nu_23 from maximal mixing in the neutrino sector originate, similar to the Cabibbo angle in the quark sector, from a mismatch of different subgroups of D14 and are of the size of the Cabibbo angle. The mixing angles in the charged lepton sector are small. Thus, the lepton mixing angle theta^l_13 is naturally in its experimentally preferred range and theta^l_23 within its 3 sigma range. The solar mixing angle is of order one and the charged lepton mass hierarchy is correctly reproduced. Leading order results are only slightly perturbed, if next-to-leading order corrections are taken into account.
description: 18+1 pages, v2: references added and updated, matches journal version
Neue Untersuchungen zur Pythaïs-Prozession von Athen nach Delphi
Creators: name: Kühn, Stefanie
Publisher: name: Edition Topoi
Year: 2018

description: ­Die Pythaïs-Prozession ist ein athenisches Fest mit einigen Besonderheiten: Im Gegensatz zu den meisten anderen griechischen Prozessionen fand sie nicht periodisch statt, sondern wurde in unregelmäßigen Abständen und insgesamt betrachtet auch relativ selten durchgeführt. Dennoch besaß sie eine große politische Bedeutung, da sie die Führungsposition Athens und die Verbindung zwischen Athen und dem panhellenischen Heiligtum in Delphi hervorheben sollte. In diesem Band werden sämtliche zur Verfügung stehenden epigraphischen, literarischen und archäologischen Quellen zusammengeführt und neu ausgewertet, insbesondere das außergewöhnlich reiche Inschriftenmaterial aus der hellenistischen Epoche und der römischen Kaiserzeit, das hier erstmals in kompletter Übersetzung vorgelegt wird. Neben der Analyse und dem Vergleich der sich verändernden Teilnehmergruppen insbesondere in der hellenistischen Zeit steht die Rekonstruktion des für eine Prozession ungewöhnlich langen Weges von Athen nach Delphi im Mittelpunkt. Damit bietet der Band eine umfassende Rekonstruktion des Pythaïs-Rituals von der klassischen Epoche bis in die römische Kaiserzeit.
Tracking shocked dust: state estimation for a complex plasma during a shock wave
Creators: name: Oxtoby, Neil P.
name: Ralph, Jason F.
name: Durniak, Céline
name: Samsonov, Dmitry
Publisher: name: arXiv
Year: 2011
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We consider a two-dimensional complex (dusty) plasma crystal excited by an electrostatically-induced shock wave. Dust particle kinematics in such a system are usually determined using particle tracking velocimetry. In this work we present a particle tracking algorithm which determines the dust particle kinematics with significantly higher accuracy than particle tracking velocimetry. The algorithm uses multiple extended Kalman filters to estimate the particle states and an interacting multiple model to assign probabilities to the different filters. This enables the determination of relevant physical properties of the dust, such as kinetic energy and kinetic temperature, with high precision. We use a Hugoniot shock-jump relation to calculate a pressure-volume diagram from the shocked dust kinematics. Calculation of the full pressure-volume diagram was possible with our tracking algorithm, but not with particle tracking velocimetry.
description: 10 pages, 8 figures, accepted for publication in Physics of Plasmas
Українська література: підручник для 10 класу загальноосвітніх навчальних закладів. Рівень стандарту, академічний рівень) ; за заг. ред. Г.Ф.Семенюка
Creators: name: Vashkiv, Lesia
name: H. Semenyuk
name: M. Tkachuk
name: O. Slon'ovs'ska
name: R. Hrom'yak
name: N. Pletenchuk
Publisher: name: figshare
Year: 2017
Subjects: subject: Literature
subject: 200509 Central and Eastern European Literature (incl. Russian)
subject: FOS: Languages and literature
subject: 200599 Literary Studies not elsewhere classified
subject: 200523 Middle Eastern Literature

description: У підручнику представлено навчальні матеріали для вивчення української літератури другої половини XIX — початку XX століть. У цьому часі відкриється художня самобутність українського письменства, естетична неповторність національної картини буття народу, його розвиток у контексті європейського літературного процесу. Цей період ознаменувався великими перемогами реалізму в літературі, пов’язаними з іменами Івана Нечуя-Левицького, Панаса Мирного, Михайла Старицького, Бориса Грінченка, Івана Карпенка-Карого, Марка Кропивницького, Івана Франка. Українські митці дотримувалися засад демократизму, гуманізму, психологізму та суспільної зумовленості характеру людини. Вони змалювали яскраві картини буття народу, глибоко висвітлили історичні закономірності і фактори, що обумовлюють вчинки і характери героїв. У другій половині XIX століття розквітали драматургія і лірика, розвивалась літературна критика, утверджувався роман як свідчення зрілості української літератури, її європейськості. Виникали нові естетичні явища: натуралізм, модернізм та його стильові течії — символізм, імпресіонізм, неоромантизм, експресіонізм.
Українська література поступово завойовувала європейське визнання. Її пропагандистами на Заході були Марко Вовчок, Михайло Драгоманов, Іван Франко, Ольга Кобилянська, Богдан Лепкий, англійська письменниця Етель Ліліан Войнич, польська поетеса Марія Конопніцька. Читачів вражали моральна краса народу у творах Михайла Коцюбинського, Василя Стефаника, універсалізм Івана Франка і Лесі Українки.
Належне вивчення української літератури в 10 класі дає змогу поглибити літературну освіту, сформувати естетичні смаки, виховати найкращі риси особистості, зокрема патріотизм, гуманізм, активну життєву позицію, навички вирішувати нестандартні ситуації.
Reducing Energy Consumption and Latency of Applications on Wireless Devices
Creators: name: Sehati, Ali
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Computer Networks
subject: Internet of Things
subject: Energy-Delay Tradeoff
subject: Online Algorithms
subject: Browsing Delay
subject: Request Bundling
subject: Smartphones
subject: Computer Science

description: Energy consumption and delay are the key factors influencing users' quality of experience for applications running on wireless devices. In cellular networks, providing a satisfactory user experience faces several challenges caused by the poor interactions between multiple factors. First, cellular networks suffer from long round trip times and also employ a radio resource control protocol, which keeps the radio of the device in high power state even after completion of a data transfer. Second, in most applications, completing a user action involves many round trips over the high-latency cellular link, which can lead to poor application performance. Moreover, periodic and intermittent traffic pattern exhibited by the majority of applications can result in serious energy inefficiencies. In this thesis, we address these challenges from the network and end device perspectives. First, we design a network-centric solution, called WebPro, that adopts speculative loading and bundling techniques to reduce latency and energy consumption of mobile web browsing. Performance evaluation results obtained through live experiments indicate that WebPro outperforms state-of-the-art, though the degree of improvement varies for different webpages. Then, we focus on energy-delay tradeoff on end devices and design algorithms to balance the energy-delay tradeoff inherent in bundling. Specifically, we formulate a generalized notion of bundling as an online optimization problem. The objective of this problem is to minimize the bundling cost defined as a weighted summation of energy and delay costs. Based on two different energy cost models associated with smartphones and internet of things (IoT) devices, we develop online algorithms to solve the optimization problem. A distinctive feature of our online algorithms is that they do not rely on any assumption about the traffic pattern or nature of applications. We provide theoretical performance bounds for our proposed algorithms by comparing them to an optimal offline algorithm. We evaluate the performance of our algorithms in a range of realistic scenarios using both model-driven simulations and real experiments on a smartphone. Our results show that depending on the delay tolerance level of a user, energy savings ranging from zero to about 100% can be achieved using our algorithms.
Epistol literary critiques development, functions in literary process / Епістолярна літературна критика: становлення, функції в літературному процесі
Creators: name: Vashkiv, Lesia
Publisher: name: figshare
Year: 2017
Subjects: subject: 200509 Central and Eastern European Literature (incl. Russian)
subject: FOS: Languages and literature
subject: 200525 Literary Theory

description: In monography analyses Ukrainian epistol critiques of the XIX -the beginning of the XX centuries. On the basis of the letters of the Ukrainian writers the author considers their views concerning the role and task of the literary critiques, characterizes peculiarities of the so-called writers' critiques, follows the development and specifics of the functioning of epistol literary-critical evaluations. The author investigates poetics of a letter as a genre containing literary critiques.
У монографії аналізується українська епістолярна критика XIX — початку XX ст. На матеріалі листів українських письменників з'ясовуються їх погляди на роль і завдання літературної критики, характеризуються особливості так званої письменницької критики, простежується становлення, специфіка функціонування епістолярних літературно-критичних оцінок. Досліджується поетика листа як жанру, що містить у собі літературну критику.
On the Ages of Planetary Systems with Mean Motion Resonances
Creators: name: Koriski, Shuki
name: Zucker, Shay
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present preliminary though statistically significant evidence that shows that multiplanetary systems that exhibit a 2/1 period commensurability are in general younger than multiplanetary systems without commensurabilities, or even systems with other commensurabilities. An immediate possible conclusion is that the 2/1 mean-motion resonance in planetary systems, tends to be disrupted after typically a few Gyrs.
description: 15 pages, 2 tables. Accepted for publication in the Astrophysical Journal Letters
The model manager: a multidimensional conceptual modeling tool in the CIM framework
Creators: name: Shakya, Dibesh
Publisher: name: University of British Columbia
Year: 2011

description: Organizations of all sizes collect a vast quantity of data every year. A data warehouse facilitates strategic multidimensional analysis on these data, by providing a single integrated queryable interface for multiple heterogeneous data sources. However, this interface is at the logical level schema, which fails to take advantage of the fundamental concepts of multidimensional data analysis like facts, dimensions, hierarchies, etc. In this thesis, we discuss a conceptual modeling language from the Conceptual Integration Modeling framework that serves multidimensional data to the users at a much higher level of abstraction. We not only provide the formal semantics for the language, but we also supply conceptual models depicting real world data analysis scenarios. These models are backed up with rigorous mathematical definitions to dispel any ambiguity in their interpretation. We developed a fully functional graphical editor, called the Model manager, to enable users to draw conceptual models visually.
title: Rezension: Performative Zugänge zu Deutsch als Zweisprache (DaZ). Ein Lehr- und Praxisbuch. Tübingen: Narr Francke Attempto Verlag. ISBN: 978-3-8233-8513-4. 461 Seiten. 34,99 €
Creators: name: Decker, Lena
name: Sonntag, Katrin
Publisher: name: Universitäts- und Landesbibliothek Darmstadt
Year: 2023

description: Do things with words¹, Sprache erfolgreich als Werkzeug gebrauchen, das ist das Ziel eines gelungenen Sprachunterrichts: Er soll Lernende sprachlich handlungsfähig machen. Diese sprachlichen Handlungen müssen angemessen vermittelt und trainiert werden.
FIBRE-pac: FMOS image-based reduction package
Creators: name: Iwamuro, F.
name: Moritani, Y.
name: Yabe, K.
name: Sumiyoshi, M.
name: Kawate, K.
name: Tamura, N.
name: Akiyama, M.
name: Kimura, M.
name: Takato, N.
name: Tait, P.
name: Ohta, K.
name: Totani, T.
name: Suzuki, Y.
name: Tonegawa, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The FIBRE-pac (FMOS image-based reduction package) is an IRAF-based reduction tool for the fiber multiple-object spectrograph (FMOS) of the Subaru telescope. To reduce FMOS images, a number of special techniques are necessary because each image contains about 200 separate spectra with airglow emission lines variable in spatial and time domains, and with complicated throughput patterns for the airglow masks. In spite of these features, almost all of the reduction processes except for a few steps are carried out automatically by scripts in text format making it easy to check the commands step by step. Wavelength- and flux-calibrated images together with their noise maps are obtained using this reduction package.
description: Accepted for publication in PASJ. 9 pages, 14 figures
The parsec-scale jet of PKS 1749+096
Creators: name: Lu, R. -S.
name: Shen, Z. -Q.
name: Krichbaum, T. P.
name: Iguchi, S.
name: Lee, S. -S.
name: Zensus, J. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: PKS 1749+096 is a BL Lac object showing weak extended jet emission to the northeast of the compact VLBI core on parsec scales. We aim at better understanding the jet kinematics and variability of this source and finding clues that may applicable to other BL Lac objects. The jet was studied with multi-epoch multi-frequency high-resolution VLBI observations. The jet is characterized by a one-sided curved morphology at all epochs and all frequencies. The VLBI core, located at the southern end of the jet, was identified based on its spectral properties. The equipartition magnetic field of the core was investigated, through which we derived a Doppler factor of 5, largely consistent with that derived from kinematics (component C5). The study of the detailed jet kinematics at 22 and 15 GHz, spanning a period of more than 10 years, indicates the possible existence of a bimodal distribution of the jet apparent speed. Ballistic and non-ballistic components are found to coexist in the jet. Superluminal motions in the range of 5-21 c were measured in 11 distinct components. We estimated the physical jet parameters with the minimum Lorentz factor of 10.2 and Doppler factors in the range of 10.2-20.4 (component C5). The coincidence in time of the component's ejection and flares supports the idea that, at least in PKS 1749+096, ejection of new jet components is connected with major outbursts in flux density. For the best-traced component (C5) we found that the flux density decays rapidly as it travels downstream the jet, accompanied by a steepening of its spectra, which argues in favor of a contribution of inverse Compton cooling. These properties make PKS 1749+096 a suitable target for an intensive monitoring to decipher the variability phenomenon of BL Lac objects.
description: Replaced to match published version
Heavy flavor physics with the CMS experiment
Creators: name: Chiochia, Vincenzo
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Thanks to the excellent tracking and muon identification performance, combined with a flexible trigger system, the CMS experiment at the Large Hadron Collider is conducting a rich and competitive program of measurements in the field of heavy flavor physics. We review the status of b-quark production cross section measurements in inclusive and exclusive final states, the measurement of B hadron angular correlations, the search for rare $B^0_s$ and $B^0$ decays to dimuons, and the observation of the X(3872) resonance.
description: Presented at the 2011 Hadron Collider Physics symposium (HCP-2011), Paris, France, November 14-18 2011, 4 pages, 4 figures
Спогади про Вчителя
Creators: name: Vashkiv, Lesia
Publisher: name: figshare
Year: 2017
Subjects: Literature

description: Спогади Лесі Садової-Вашків про доктора філологічних наук, професора Тернеопільського національного педагогічного університету ім. В.Гнатюка Романа Теодоровича Гром’яка.
Polymers as compressible soft spheres
Creators: name: D'Adamo, Giuseppe
name: Pelissetto, Andrea
name: Pierleoni, Carlo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a coarse-grained model in which polymers under good-solvent conditions are represented by soft spheres whose radii, which should be identified with the polymer radii of gyrations, are allowed to fluctuate. The corresponding pair potential depends on the sphere radii. This model is a single-sphere version of the one proposed in Vettorel et al., Soft Matter 6, 2282 (2010), and it is sufficiently simple to allow us to determine all potentials accurately from full-monomer simulations of two isolated polymers (zero-density potentials). We find that in the dilute regime (which is the expected validity range of single-sphere coarse-grained models based on zero-density potentials) this model correctly reproduces the density dependence of the radius of gyration. However, for the thermodynamics and the intermolecular structure, the model is largely equivalent to the simpler one in which the sphere radii are fixed to the average value of the radius of gyration and radiiindependent potentials are used: for the thermodynamics there is no advantage in considering a fluctuating sphere size.
description: 21 pages, 7 figures
Coupling lattice Boltzmann model for simulation of thermal flows on standard lattices
Creators: name: Li, Q.
name: Luo, K. H.
name: He, Y. L.
name: Gao, Y. J.
name: Tao, W. Q.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this paper, a coupling lattice Boltzmann (LB) model for simulating thermal flows on the standard D2Q9 lattice is developed in the framework of the double-distribution-function (DDF) approach in which the viscous heat dissipation and compression work are considered. In the model, a density distribution function is used to simulate the flow field, while a total energy distribution function is employed to simulate the temperature field. The discrete equilibrium density and total energy distribution functions are obtained from the Hermite expansions of the corresponding continuous equilibrium distribution functions. The pressure given by the equation of state of perfect gases is recovered in the macroscopic momentum and energy equations. The coupling between the momentum and energy transports makes the model applicable for general thermal flows such as non-Boussinesq flows, while the existing DDF LB models on standard lattices are usually limited to Boussinesq flows in which the temperature variation is small. Meanwhile, the simple structure and basic advantages of the DDF LB approach are retained. The model is tested by numerical simulations of thermal Couette flow, attenuation-driven acoustic streaming, and natural convection in a square cavity with small and large temperature differences. The numerical results are found to be in good agreement with the analytical solutions and/or other numerical results reported in the literature.
description: 9 figures
Hardness of LWE on General Entropic Distribution
Creators: name: Brakerski, Zvika
name: Döttling, Nico
Publisher: name: CISPA
Year: 2023

description: The hardness of the Learning with Errors (LWE) problem is by now a cornerstone of the cryptographic landscape. In many of its applications the so called ``LWE secret'' is not sampled uniformly, but comes from a distribution with some min-entropy. This variant, known as ``Entropic LWE'', has been studied in a number of works, starting with Goldwasser et al. (ICS 2010). However, so far it was only known how to prove the hardness of Entropic LWE for secret distributions supported inside a ball of small radius. In this work we resolve the hardness of Entropic LWE with arbitrary long secrets, in the following sense. We show an entropy bound that guarantees the security of arbitrary Entropic LWE. This bound is higher than what is required in the ball-bounded setting, but we show that this is essentially tight. Tightness is shown unconditionally for highly-composite moduli, and using black-box impossibility for arbitrary moduli. Technically, we show that the entropic hardness of LWE relies on a simple to describe lossiness property of the distribution of secrets itself. This is simply the probability of recovering a random sample from this distribution s, given s+e, where e is Gaussian noise (i.e. the quality of the distribution of secrets as an error correcting code for Gaussian noise). We hope that this characterization will make it easier to derive entropic LWE results more easily in the future. We also use our techniques to show new results for the ball-bounded setting, essentially showing that under a strong enough assumption even polylogarithmic entropy suffices.
Debugging Inputs
Creators: name: Kirschner, Lukas
name: Soremekun, Ezekiel
name: Zeller, Andreas
Publisher: name: CISPA
Year: 2023

description: When a program fails to process an input, it need not be the program code that is at fault. It can also be that the input data is faulty, for instance as result of data corruption. To get the data processed, one then has to debug the input data—that is, (1) identify which parts of the input data prevent processing, and (2) recover as much of the (valuable) input data as possible. In this paper, we present a general-purpose algorithm called ddmax that addresses these problems automatically. Through experiments, ddmax maximizes the subset of the input that can still be processed by the program, thus recovering and repairing as much data as possible; the difference between the original failing input and the “maximized” passing input includes all input fragments that could not be processed. To the best of our knowledge, ddmax is the first approach that fixes faults in the input data without requiring program analysis. In our evaluation, ddmax repaired about 69% of input files and recovered about 78% of data within one minute per input.
Using surface integrals for checking the Archimedes' law of buoyancy
Creators: name: Lima, F. M. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Classical Physics (physics.class-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A mathematical derivation of the force exerted by an \emph{inhomogeneous} (i.e., compressible) fluid on the surface of an \emph{arbitrarily-shaped} body immersed in it is not found in literature, which may be attributed to our trust on Archimedes' law of buoyancy. However, this law, also known as Archimedes' principle (AP), does not yield the force observed when the body is in contact to the container walls, as is more evident in the case of a block immersed in a liquid and in contact to the bottom, in which a \emph{downward} force that \emph{increases with depth} is observed. In this work, by taking into account the surface integral of the pressure force exerted by a fluid over the surface of a body, the general validity of AP is checked. For a body fully surrounded by a fluid, homogeneous or not, a gradient version of the divergence theorem applies, yielding a volume integral that simplifies to an upward force which agrees to the force predicted by AP, as long as the fluid density is a \emph{continuous function of depth}. For the bottom case, this approach yields a downward force that increases with depth, which contrasts to AP but is in agreement to experiments. It also yields a formula for this force which shows that it increases with the area of contact.
description: 15 pages, 3 figures, accepted for publication in "Eur. J. Phys." (10/20/2011)
Fast evolving size of early-type galaxies at z>2 and the role of dissipationless (dry) merging
Creators: name: Cimatti, A.
name: Nipoti, C.
name: Cassata, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the analysis of a large sample of early-type galaxies (ETGs) at 02 are removed from the sample, suggesting an accelerated increase of the typical sizes at z>2, especially for the ETGs with the largest masses. A pure dry merging LambdaCDM model is marginally consistent with the average size evolution at 02 progenitor ETGs. This opens the crucial question on what physical mechanism can explain the accelerated evolution at z>2, or whether an unclear observational bias is partly responsible for that.
description: MNRAS (Letters), in press, 5 pages, 3 figures
Spectrophotometric measurement of the Extragalacic Background Light
Creators: name: Mattila, Kalevi
name: Lehtinen, Kimmo
name: Vaisanen, Petri
name: von Appen-Schnur, Gerhard
name: Leinert, Christoph
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Extragalactic Background Light (EBL) at UV, optical and NIR wavelengths consists of the integrated light of all unresolved galaxies along the line of sight plus any contributions by intergalactic matter including hypothetical decaying relic particles. The measurement of the EBL has turned out to be a tedious problem. This is because of the foreground components of the night sky brightness, much larger than the EBL itself: the Zodiacal Light (ZL), Integrated Starlight (ISL), Diffuse Galactic Light (DGL) and, for ground-based observations, the Airglow (AGL) and the tropospheric scattered light. We have been developing a method for the EBL measurement which utilises the screening effect of a dark nebula on the EBL. A differential measurement in the direction of a high-latitude dark nebula and its surrounding area provides a signal that is due to two components only, i.e. the EBL and the diffusely scattered ISL from the cloud. We present a progress report of this method where we are now utilising intermediate resolution spectroscopy with ESO's VLT telescope. We detect and remove the scattered ISL component by using its characteristic Fraunhofer line spectral signature. In contrast to the ISL, in the EBL spectrum all spectral lines are washed out. We present a high quality spectrum representing the difference between an opaque position within our target cloud and several clear OFF positions around the cloud. We derive a preliminary EBL value at 400 nm and an upper limit to the EBL at 520 nm. These values are in the same range as the EBL lower limits derived from galaxy counts.
description: 7 pages, 6 figures, Invited talk, IAU Symposium No.284
Epistol literary critiques development, functions in literary process.pdf
Creators: name: Vashkiv, Lesia
Publisher: name: figshare
Year: 2017
Subjects: subject: 200509 Central and Eastern European Literature (incl. Russian)
subject: FOS: Languages and literature
subject: 200525 Literary Theory

description: In monography analyses Ukrainian epistol critiques of the XIX -the beginning of the XX centuries. On the basis of the letters of the Ukrainian writers the author considers their views concerning the role and task of the literary critiques, characterizes peculiarities of the so-called writers' critiques, follows the development and specifics of the functioning of epistol literary-critical evaluations. The author investigates poetics of a letter as a genre containing literary critiques.
У монографії аналізується українська епістолярна критика XIX — початку XX ст. На матеріалі листів українських письменників з'ясовуються їх погляди на роль і завдання літературної критики, характеризуються особливості так званої письменницької критики, простежується становлення, специфіка функціонування епістолярних літературно-критичних оцінок. Досліджується поетика листа як жанру, що містить у собі літературну критику.
Case method as a means to intensify the educational process of intending economists / Кейс-метод як засіб активізації навчального процесу майбутніх економістів
Creators: name: Vashkiv, Lesia
name: Vashkiv, Oleksandr
Publisher: name: figshare
Year: 2017
Subjects: subject: Education
subject: 130106 Secondary Education
subject: FOS: Educational sciences

description: The article presents practical aspects of case-method usage in the process of researching social responsibility of business; the article also gives a detailed insight into a situational exercise on the level of its constituting elements; the peculiarities and the advantages of case-method are characterized and compared to the traditional teaching methods.
У статті розглядаються практичні аспекти застосування кейс-методу у процесі вивчення питань соціальної відповідальності бізнесу, деталізується ситуаційна вправа на рівні її складових елементів, характеризуються особливості кейс-методу та його переваги у порівнянні з традиційними формами навчання.
BIAS: Bluetooth Impersonation AttackS
Creators: name: Antonioli, Daniele
name: Tippenhauer, Nils Ole
name: Rasmussen, Kasper
Publisher: name: CISPA
Year: 2023

description: Bluetooth (BR/EDR) is a pervasive technology for wireless communication used by billions of devices. The Bluetooth standard includes a legacy authentication procedure and a secure authentication procedure, allowing devices to authenticate to each other using a long term key. Those procedures are used during pairing and secure connection establishment to prevent impersonation attacks. In this paper, we show that the Bluetooth specification contains vulnerabilities enabling to perform impersonation attacks during secure connection establishment. Such vulnerabilities include the lack of mandatory mutual authentication, overly permissive role switching, and an authentication procedure downgrade. We describe each vulnerability in detail, and we exploit them to design, implement, and evaluate master and slave impersonation attacks on both the legacy authentication procedure and the secure authentication procedure. We refer to our attacks as Bluetooth Impersonation AttackS (BIAS). Our attacks are standard compliant, and are therefore effective against any standard compliant Bluetooth device regardless the Bluetooth version, the security mode (e.g., Secure Connections), the device manufacturer, and the implementation details. Our attacks are stealthy because the Bluetooth standard does not require to notify end users about the outcome of an authentication procedure, or the lack of mutual authentication. To confirm that the BIAS attacks are practical, we successfully conduct them against 31 Bluetooth devices (28 unique Bluetooth chips) from major hardware and software vendors, implementing all the major Bluetooth versions, including Apple, Qualcomm, Intel, Cypress, Broadcom, Samsung, and CSR.
“Zemlya” by Olga Kobylyanska as the object of literary studies of Pavlo Fylypovych / «Земля» Ольги Кобилянської як об’єкт літературознавчих студій Павла Филиповича
Creators: name: Vashkiv, Lesia
name: Vashkiv, Anastasia
Publisher: name: figshare
Year: 2017
Subjects: Literature

description: The article is dedicated to the analysis of the foreword by P.Fylypovych to the publication of “Zemlya” by O.Kobylyanska in Kyiv in 1928. Literary studies by P.Fylypovych is analyzed in the context of interpretation of the novel of O.Kobylyanska by other investigators: I.Franko, S.Yefremov, M.Yevshan. The perspectives of further research of topic “P.Fylypovych as investigator of writings by O.Kobylyanska” are suggested.
Стаття присвячена розгляду передмови П. Филиповича до публікації «Землі» O. Кобилянської в Києві у 1928 році. Аналіз здійснюється в контексті інтерпретації твору й іншими дослідниками: І. Франком, С. Єфремовим, М. Євшаном.
Strange Quark PDFs and Implications for Drell-Yan Boson Production at the LHC
Creators: name: Kusina, A.
name: Stavreva, T.
name: Berge, S.
name: Olness, F. I.
name: Schienbein, I.
name: Kovarik, K.
name: Jezo, T.
name: Yu, J. Y.
name: Park, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Global analyses of Parton Distribution Functions (PDFs) have provided incisive constraints on the up and down quark components of the proton, but constraining the other flavor degrees of freedom is more challenging. Higher-order theory predictions and new data sets have contributed to recent improvements. Despite these efforts, the strange quark PDF has a sizable uncertainty, particularly in the small x region. We examine the constraints from experiment and theory, and investigate the impact of this uncertainty on LHC observables. In particular, we study W/Z production to see how the s-quark uncertainty propagates to these observables, and examine the extent to which precise measurements at the LHC can provide additional information on the proton flavor structure.
description: 14 pages, 11 figures, added references
Experimental constraints from flavour changing processes and physics beyond the Standard Model
Creators: name: Gersabeck, Marco
name: Gligorov, Vladimir V.
name: Serra, Nicola
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Flavour physics has a long tradition of paving the way for direct discoveries of new particles and interactions. Results over the last decade have placed stringent bounds on the parameter space of physics beyond the Standard Model. Early results from the LHC, and its dedicated flavour factory LHCb, have further tightened these constraints and reiterate the ongoing relevance of flavour studies. The experimental status of flavour observables in the charm and beauty sectors is reviewed in measurements of CP violation, neutral meson mixing, and measurements of rare decays.
description: 15 pages, 10 figure, 1 table, invited review for a special "Top Physics and Flavour Physics beyond the Standard Model in the LHC Era" issue of The European Physical Journal C
Graviton mass bounds from space-based gravitational-wave observations of massive black hole populations
Creators: name: Berti, Emanuele
name: Gair, Jonathan
name: Sesana, Alberto
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Space-based gravitational-wave detectors, such as LISA or a similar ESA-led mission, will offer unique opportunities to test general relativity. We study the bounds that space-based detectors could place on the graviton Compton wavelength λ_g=h/(m_g c) by observing multiple inspiralling black hole binaries. We show that while observations of individual inspirals will yield mean bounds λ_g~3x10^15 km, the combined bound from observing ~50 events in a two-year mission is about ten times better: λ_g~3x10^16 km (m_g~4x10^-26 eV). The bound improves faster than the square root of the number of observed events, because typically a few sources provide constraints as much as three times better than the mean. This result is only mildly dependent on details of black hole formation and detector characteristics. The bound achievable in practice should be one order of magnitude better than this figure (and hence almost competitive with the static, model-dependent bounds from gravitational effects on cosmological scales), because our calculations ignore the merger/ringdown portion of the waveform. The observation that an ensemble of events can sensibly improve the bounds that individual binaries set on λ_g applies to any theory whose deviations from general relativity are parametrized by a set of global parameters.
description: 5 pages, 3 figures, 2 tables. Minor changes to address comments by the referees
Spectroscopic stellar parameters for 582 FGK stars in the HARPS volume-limited sample. Revising the metallicity-planet correlation
Creators: name: Sousa, Sérgio G.
name: Santos, Nuno C.
name: Israelian, Garik
name: Mayor, Michel
name: Udry, Stephane
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: To understand the formation and evolution of solar-type stars and planets in the solar neighborhood, we need to obtain their stellar parameters with high precision. We present a catalog of precise stellar parameters for low-activity FGK single stars in a volume-limited sample followed by the HARPS spectrograph in the quest to identify extra-solar planets. The spectroscopic analysis was completed assuming LTE with a grid of Kurucz atmosphere models and using the ARES code to perform an automatic measurement of the line equivalent widths. The results are compared with different independent methods and also with other values found in the literature for common stars. Both comparisons are consistent and illustrate the homogeneity of the parameters derived by our team. The derived metallicities of this sample reveal a somewhat different distribution for the present planet hosts, but still indicates the already known higher frequency of planets observed for the more metal-rich stars. We combine the results derived in this sample with the one from the CORALIE survey to present the largest homogeneous spectroscopic study of the metallicity-giant-planet relation using a total of 1830 stars.
description: 9 pages, 9 Figures, in press on A\&A