cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Understanding Nucleons in the Nuclear Medium
Creators: name: Higinbotham, D. W.
name: Sulkosky, V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Recent cross section (e,e'pN) short-range correlation experiments have clearly shown the strong dominance of tensor correlations for (e,e'p) missing momenta greater than the Fermi momentum; while recent D(e,e'p)n and 4He(e,e'p)t asymmetry experiments at low missing momentum have shown small changes from the free nucleon form factor. By doing asymmetry experiments as a function of missing momentum, these results can be linked together and observed as a change of sign in the measured asymmetry. This idea will be presented within the context of the recently completed Jefferson Lab Hall A quasi-elastic, polarized 3He(e,e'N) experiments (N=0,p,n,d) where the asymmetries of several reaction channels were measured with three, orthogonal target-spin directions. Together, these various experiments will help us to better understand nucleons in the nuclear medium.
description: 4 pages, 1 figure, to appear in Proceedings of XIII International Conference on Hadron Spectroscopy (Hadron2009)
title: Technical Progress and Evolution
Creators: name: Steindl, Josef
Year: 2017
Subjects: subject: Technischer Fortschritt Forschung und Entwicklung Innovation Diffusion Produktivitätszuwachs Wirtschaftsentwicklung

description: This contribution will be concerned with two ideas: First, the analogy between technical progress and biological evolution, and second, the interaction of science and society (of which "the economy" is only a part). (Auszug, S. 1)
description: Manuskript, 24 Blätter
title: Liberal Education in Harmonics in Philo of Alexandria
Creators: name: Larionova, Sofia
Publisher: name: Hyperboreus 28: 1 (2022) 95–110
Year: 2022

description: This paper aims to analyze the passages of Philo of Alexandria on mathematical education in an attempt to reconstruct post-school mathematical education in the field of mathematical harmonics in the city of Alexandria in the first century CE. Present paper provides evidence that at that time some education in harmonics was received not only by professionals and scientists, but also by other free wealthy citizens. It is shown that the curriculum that became a part of later standard introductions to mathematical sciences, such as “Mathematics useful for reading Plato” by Theon of Smyrna and “Introduction to Harmonics” by Nicomachus of Gerasa, was already being practiced during Philo’s time. The topics that formed the basis of this course were the following: the physical causes of sounds, notes, strings, intervals, concords, ratios, separation of the canon, as well as Platonic and Pythagorean ideas about cosmic harmony. To master such a program, some knowledge of arithmetic and geometry was required. Thus, it is shown that to the time of Philo the quadrivium had already developed as an educational unity, where the topics logically followed one another, and the study of each subsequent subject of the quadrivium required basic knowledge from the previous one.
description: В статье рассматривается распространение практики преподавания квадривиума в эпоху империи на материале сочинений Филона Александрийского (нач. I в. н. э.). Проведен анализ пассажей Филона о математическом образовании и предпринята попытка реконструкции послешкольного математи­ческого образования в сфере гармоники в Александрии. Было показано, что в то время гармонике обучались не только профессионалы и ученые-математики, но и другие свободные обеспеченные граждане. Во время Филона уже практиковался curriculum, отраженный в более поздних стандартных введениях в математические науки, таких как “Математика, полезная для чтения Платона” Теона Смирнского и “Введение в гармонику” Никомаха Герасского. Основу этого учебного курса составляло изучение следующих тем: физические причины возникновения звуков, ноты, струны, интервалы, консонансы, пропорции, разделение канона, а также платонические и пифагорейские идеи о космической гармонии. Продемонстрировано, что для освоения подобной программы требовались некоторые знания арифметики и геометрии. Таким образом, ко времени Филона квадривиум уже оформился как некое образовательное единство, где темы логически следовали друг за другом, а изучение каждого следующего предмета квадривиума требовало базовых знаний из предыдущего.
Catalysts for H2 production
Creators: name: Rosetti, Valentina <1976>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2007
Subjects: CHIM/04 Chimica industriale

description: The research of new catalysts for the hydrogen production described in this thesis was inserted within a collaboration of Department of Industrial Chemistry and Materials of University of Bologna and Air Liquide (Centre de Recherche
Claude-Delorme, Paris). The aim of the work was focused on the study of new materials, active and stable in the hydrogen production from methane, using either a new process, the catalytic partial oxidation (CPO), or a enhanced well-established process, the steam methane reforming (SMR). Two types of catalytic materials were examined: 1) Bulk catalysts, i.e. non-supported materials, in which the active metals (Ni and/or Rh) are stabilized inside oxidic matrix, obtained from perovskite type compounds (PVK) and from hydrotalcite type precursors (HT);
2) Structured catalysts, i.e. catalysts supported on materials having high thermal conductivity (SiC and metallic foams). As regards the catalytic partial oxidation, the effect of the metal (Ni and/or Rh), the role of the metal/matrix ratio and the matrix formulation of innovative catalysts obtained from hydrotalcite type precursors and from perovskites were examined. In addition, about steam reforming process, the study was carried out first on
commercial type catalysts, examining the deactivation in industrial conditions, the role of the operating conditions and the activity of different type of catalysts. Then, innovative materials bulk (PVK and HT) and structured catalysts (SiC and metallic foam) were studied and a new preparation method was developed.
title: „Wenn der Steuermann ruft…“ (Epiktet, Encheiridion 7)
Creators: name: Krämer, Benedikt
Publisher: name: Hyperboreus 28: 1 (2022) 111–122
Year: 2022

description: Epictetus’/Arrianus’ Encheiridion is for the most part a lucid and readily under­standable text. The precise meaning of c. 7 and its imagery, however, is still a matter of dispute. The present paper offers a reinterpretation of c. 7 which tries to link c. 7 to stoic physics and psychology on the one hand and Epictetus’ personal religiosity and his psychagogic style of writing on the other hand.
description: “Энхиридион” Эпиктета/Арриана представляет собой, по большей части, ясный и легко понимаемый текст. Одно из немногих исключений – гл. 7 с ее трудной для интерпретации образностью, остающейся предметом дискуссий. Автор предлагает пересмотреть интерпретацию этой главы, связав ее как с физическими и психологическими взглядами стоиков, так и с особенностями религиозного мировоззрения Эпиктета и психагогиче­ской манеры его рассуждений.
Relativistic Correction to J/ψProduction at Hadron Colliders
Creators: name: Fan, Ying
name: Ma, Yan-Qing
name: Chao, Kuang-Ta
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Relativistic corrections to the color-singlet J/ψhadroproduction at the Tevatron and LHC are calculated up to O(v^2) in nonrelativistic QCD (NRQCD). The short distance coefficients are obtained by matching full QCD with NRQCD results for the subprocess g+g\to J/ψ+g. The long distance matrix elements are extracted from observed J/ψhadronic and leptonic decay widths up to O}(v^2). Using the CTEQ6 parton distribution functions, we calculate the LO production cross sections and relativistic corrections for the process p+\bar{p}(p)\to J/ψ+X at the Tevatron and LHC. We find that the enhancement of O(v^2) relativistic corrections to the cross sections over a wide range of large transverse momentum p_t is negligible, only at a level of about 1 %. This tiny effect is due to the smallness of the correction to short distance coefficients and the suppression from long distance matrix elements. These results indicate that relativistic corrections can not help to resolve the large discrepancy between leading order prediction and experimental data for J/ψproduction at the Tevatron.
description: 9 pages, 5 figures
Correlations in the Electronic Structure of van der Waals NiPS$_3$ Crystals: An X-Ray Absorption and Resonant Photoelectron Spectroscopy Study
Creators: name: Yan, Mouhui
name: Jin, Yichen
name: Wu, Zhicheng
name: Tsaturyan, Arshak
name: Makarova, Anna
name: Smirnov, Dmitry
name: Voloshina, Elena
name: Dedkov, Yuriy
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The electronic structure of high-quality van der Waals NiPS$_3$ crystals was studied using near-edge x-ray absorption spectroscopy (NEXAFS) and resonant photoelectron spectroscopy (ResPES) in combination with density functional theory (DFT) approach. The experimental spectroscopic methods, being element specific, allow to discriminate between atomic contributions in the valence and conduction band density of states and give direct comparison with the results of DFT calculations. Analysis of the NEXAFS and ResPES data allows to identify the NiPS$_3$ material as a charge-transfer insulator. Obtained spectroscopic and theoretical data are very important for the consideration of possible correlated-electron phenomena in such transition-metal layered materials, where the interplay between different degrees of freedom for electrons defines their electronic properties, allowing to understand their optical and transport properties and to propose further possible applications in electronics, spintronics and catalysis.
Graphene Layer Morphology as an Indicator of the Metals Alloy Formation at the Interface
Creators: name: Voloshina, Elena
name: Paulus, Beate
name: Dedkov, Yuriy
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The intercalation of different species in graphene-metal interfaces is widely used to stabilise the artificial phases of different materials. However, formation of the surface alloys upon the guest-metal intercalation is still an open question, which is very important for the fabrication of graphene-based interfaces with desired properties. Here, the widely studied interfaces of graphene with Ru(0001) and Ir(111) were modified using intercalation of a thin Mn layer and investigated by means of scanning tunnelling microscopy (STM) accompanied by density functional theory (DFT) calculations, which reproduce the observed experimental data. It is found that Mn forms a pseudomorphic layer on Ru(0001) under a strongly buckled graphene layer. In case of Mn intercalation in graphene/Ir(111), a buried thin layer of MnIr alloy is formed beneath the first Ir layer under a flat graphene layer. This unexpected observation is explained on the basis of phase diagram pictures for the Mn-Ru and Mn-Ir systems as well as via comparison of calculated total energies for the respective interfaces. Our results shed light on the understanding of mechanisms of the alloys formation at the graphene-metal interfaces and demonstrate their potential for the preparation of tailored interfaces for future graphene-based applications.
Analyzing Public Reactions, Perceptions, and Attitudes during the MPox Outbreak: Findings from Topic Modeling of Tweets
Creators: name: Thakur, Nirmalya
name: Duggal, Yuvraj Nihal
name: Liu, Zihui
Publisher: name: arXiv
Year: 2023
Subjects: subject: Social and Information Networks (cs.SI)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: The recent outbreak of the MPox virus has resulted in a tremendous increase in the usage of Twitter. Prior works in this area of research have primarily focused on the sentiment analysis and content analysis of these Tweets, and the few works that have focused on topic modeling have multiple limitations. This paper aims to address this research gap and makes two scientific contributions to this field. First, it presents the results of performing Topic Modeling on 601,432 Tweets about the 2022 Mpox outbreak that were posted on Twitter between 7 May 2022 and 3 March 2023. The results indicate that the conversations on Twitter related to Mpox during this time range may be broadly categorized into four distinct themes - Views and Perspectives about Mpox, Updates on Cases and Investigations about Mpox, Mpox and the LGBTQIA+ Community, and Mpox and COVID-19. Second, the paper presents the findings from the analysis of these Tweets. The results show that the theme that was most popular on Twitter (in terms of the number of Tweets posted) during this time range was Views and Perspectives about Mpox. This was followed by the theme of Mpox and the LGBTQIA+ Community, which was followed by the themes of Mpox and COVID-19 and Updates on Cases and Investigations about Mpox, respectively. Finally, a comparison with related studies in this area of research is also presented to highlight the novelty and significance of this research work.
Unveiling the substructure of the massive clump AGAL G035.1330$-$00.7450
Creators: name: Ortega, M. E.
name: Marinelli, A.
name: Isequilla, N. L.
name: Paron, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: It is known that massive stars form as result of the fragmentation of molecular clumps. However, what is not clear is whether this fragmentation gives rise to cores massive enough to form directly high-mass stars, or leads to cores of low and intermediate mass that generate massive stars acquiring material from their environment. Detailed studies towards clumps at early stages of star formation are needed to collect observational evidence that shed light on this issue. The infrared-quiet massive clump AGAL G035.1330-00.7450, located at a distance of 2.1 kpc, is a promising object to study both the fragmentation and the star formation activity at early stages. Using millimeter observations of continuum and molecular lines obtained from the Atacama Large Millimeter Array database at Bands 6 and 7, we study the substructure of this source. The angular resolution of the data at Band 7 is about 0\farcs7, which allow us to resolve structures of about 0.007 pc ($\sim$1500 au). We found that the clump harbours four dust cores (C1-C4) with masses below 3 M$_{\odot}$. Cores C3 and C4 exhibit well collimated, young, and low-mass molecular outflows. C1 and C2 present CH$_3$CN J=13--12 emission, from which we derive rotational temperatures of about 180 and 100 K, and masses of about 1.4 and 0.9 M$_{\odot}$, respectively. The moment 1 map of the CH$_3$CN emission suggests the presence of a rotating disk towards C1, which is confirmed by the CH$_3$OH and CH$_3$OCHO (20-19) emissions. On the other hand, CN N=2-1 emission shows a clumpy and filamentary structure that seems to connect all the cores. These filaments might be tracing the remnant gas of the fragmentation processes taking place within the clump, or gas that is being transported towards the cores, which would imply a competitive accretion scenario.
description: Accepted for publication in A&A (December 26, 2021)
Flow instabilities of magnetic flux tubes IV. Flux storage in the solar overshoot region
Creators: name: Isik, Emre
name: Holzwarth, Volkmar
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We consider the effects of material flows on the dynamics of toroidal magnetic flux tubes located close to the base of the solar convection zone, initially within the overshoot region. The problem is to find the physical conditions in which magnetic flux can be stored for periods comparable to the dynamo amplification time, which is of the order of a few years. We carry out nonlinear numerical simulations to investigate the stability and dynamics of thin flux tubes subject to perpendicular and longitudinal flows. We compare the simulations with the results of simplified analytical approximations. We determine ranges of the flow parameters for which a linearly Parker-stable magnetic flux tube is stored in the middle of the overshoot region for a period comparable to the dynamo amplification time. The residence time for magnetic flux tubes with fluxes of 2x10^{21} Mx in the convective overshoot layer is comparable to the dynamo amplification time, provided that the average speed and the duration of the downflow do not exceed about 50 m/s and 100 days, respectively, and that the lateral extension of the flow is smaller than about 10 degrees.
description: Accepted to be published in Astronomy and Astrophysics. 16 pages, 16 figures. To access GIF animations, use http://www.mps.mpg.de/homes/ishik/flute/frict_inst.gif, http://www.mps.mpg.de/homes/ishik/flute/TF60.gif and http://www.mps.mpg.de/homes/ishik/flute/TF180.gif
title: Technology and Evolution
Creators: name: Steindl, Josef
Year: 2017
Subjects: subject: Technischer Fortschritt Forschung und Entwicklung Innovation Diffusion Produktivitätszuwachs Wirtschaftsentwicklung

description: This contribution will be dominated by two leading themes : 1) the analogy between technical progress and evolution of species, and 2) the interaction of science and society (or "economy") (Auszug, S. 1) Analogie zwischen technischem Fortschritt und biologischer Evolution, Interaktion von Wissenschaft und Gesellschaft (Wirtschaft);
description: Manuskript, 14 Blätter
title: The Gravestone of Metrodoros from the Excavations of the Southern Suburb of Chersonesos Taurica
Creators: name: Trofimova, Anna
name: Pavlichenko, Natalia
Publisher: name: Hyperboreus 28: 1 (2022) 123–143
Year: 2022

description: The paper is devoted to the publication of a newly found gravestone from the excavations of the Southern Suburb of Chersonesos Taurica. The funerary stele belongs to a known Chersonesean type: the deceased is depicted within an aedicule niche, frontally, completely wrapped in a long himation. The youth’s head displays individual features. The style of the work echoes peculiarities of the Roman portraiture of Trajan’s reign. The composition of the stele, the character of the drapery and the hairstyle make it possible to date the relief to ca. 125–150 AD. The gravestone was produced locally, in Chersonesos, with the portrait most probably being added to an already half-finished workpiece. The epigraph on the stone has survived in its entirety (the type is datable to ca. 125–175 AD), and a reading of it not only provides information about the dead youngster, Μητρόδωρος Ἀπολ­λωνίδου, but also sheds light on the technology used to make lapidary inscriptions in the Northern Black Sea region. Directly under the epitaph of Metrodoros, three lines of another inscription are discernible, carved in thin and rather shallow lines. Their text and the spacing of the words in the lines are absolutely identical to the last three lines of the main inscription; some letters of this “lower” inscription are discernible also above. It may be suggested that this is a so-called ordinatio – i.e. the primary layout of the plate intended for the grave stele.
description: Статья посвящена публикации нового надгробия из раскопок Южного пригорода Херсонеса Таврического. Погребальная стела относится к хорошо известному в Херсонесе типу: умерший изображается в нише-эдикуле фронтально стоящим, полностью облеченным в длинный гиматий. Голова юноши имеет индивидуальные черты; стиль исполнения повторяет особенности римского портрета периода правления Траяна. Композиция стелы, характер драпировок юноши и стиль волос позволяет датировать рельеф второй четвертью – серединой II в. Надгробие было изготовлено на месте, в Херсонесе, скорее всего, портрет был добавлен к шаблону-заготовке. На памятнике полностью сохранилась эпитафия (ее шрифт датируется 2-й – 3-й четвертью II в. н. э.), прочтение которой дает информацию не только об умершем подростке по имени Μητρόδωρος Ἀπολλωνίδου, но и проливает свет на техно­логию изготовления лапидарных надписей в Северном Причерноморье. Прямо под эпитафией Метродора можно видеть три строки другой надписи, вырезанной тонкими неглубокими линиями. Их текст и разбивка слов по строкам полностью идентичны последним трем строкам основной надписи, некоторые буквы этой “нижней” надписи различимы и выше. Можно предположить, что это так называемое ordinatio – то есть первоначальная разметка плиты, предназначенной для надгробной стелы.
Running axial mass of the nucleon as a phenomenological tool for calculating QE neutrino-nucleus cross sections
Creators: name: Kakorin, Igor D.
name: Kuzmin, Konstantin S.
name: Naumov, Vadim A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We suggest an empirical rule-of-thumb for calculating the cross sections of charged-current quasielastic (CCQE) and CCQE-like interactions of neutrinos and antineutrinos with nuclei. The approach is based on the standard relativistic Fermi-gas model and on the notion of neutrino energy dependent axial-vector mass of the nucleon, governed by a couple of adjustable parameters, one of which is the conventional charged-current axial-vector mass. The inelastic background contributions and final-state interactions are therewith simulated using GENIE 3 neutrino event generator. An extensive comparison of our calculations with earlier and current accelerator CCQE and CCQE-like data for different nuclear targets shows good or at least qualitative overall agreement over a wide energy range. We also discuss some problematical issues common to several competing contemporary models of the CCQE (anti)neutrino-nucleus scattering and to the current neutrino interaction generators.
description: 58 pages, 37 figures
Convergence Visualizer of Decentralized Federated Distillation with Reduced Communication Costs
Creators: name: Taya, Akihito
name: Nishiyama, Yuuki
name: Sezaki, Kaoru
Publisher: name: arXiv
Year: 2023
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Federated learning (FL) achieves collaborative learning without the need for data sharing, thus preventing privacy leakage. To extend FL into a fully decentralized algorithm, researchers have applied distributed optimization algorithms to FL by considering machine learning (ML) tasks as parameter optimization problems. Conversely, the consensus-based multi-hop federated distillation (CMFD) proposed in the authors' previous work makes neural network (NN) models get close with others in a function space rather than in a parameter space. Hence, this study solves two unresolved challenges of CMFD: (1) communication cost reduction and (2) visualization of model convergence. Based on a proposed dynamic communication cost reduction method (DCCR), the amount of data transferred in a network is reduced; however, with a slight degradation in the prediction accuracy. In addition, a technique for visualizing the distance between the NN models in a function space is also proposed. The technique applies a dimensionality reduction technique by approximating infinite-dimensional functions as numerical vectors to visualize the trajectory of how the models change by the distributed learning algorithm.
description: (c) 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
Termofluidodinamica di un Getto di Litio
Creators: name: Nitti, Francesco Saverio <1965>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2010
Subjects: ING-IND/19 Impianti nucleari
ING-IND/06 Fluidodinamica

description: Calcolo della superficie curvilinea di scorrimento di un getto di litio in maniera che la pressione lungo il getto vari in maniera lineare. Formulazione di un codice di calcolo per la determinazione delle diverse possibili superfici. Studio termofluidodinamico del getto con codici CFD. Accoppiamento tra codici di sistema e codici CFD. Valutazioni delle condizioni di Incipient Boiling per il litio.
title: Neo-Classic
Creators: name: Steindl, Josef
Year: 2017

description: Notes relating to: neo-classical assumptions, factor input, production function, maximisation of profit, elasticity of substitution, Bhaduri, Sraffa, price system.
description: Manuskript, Konvolut aus handschriftlichen Notizen, 26 lose Blätter, teilweise nummeriert, teilweise geheftet
Camera distortion self-calibration using the plumb-line constraint and minimal Hough entropy
Creators: name: Rosten, Edward
name: Loveland, Rohan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this paper we present a simple and robust method for self-correction of camera distortion using single images of scenes which contain straight lines. Since the most common distortion can be modelled as radial distortion, we illustrate the method using the Harris radial distortion model, but the method is applicable to any distortion model. The method is based on transforming the edgels of the distorted image to a 1-D angular Hough space, and optimizing the distortion correction parameters which minimize the entropy of the corresponding normalized histogram. Properly corrected imagery will have fewer curved lines, and therefore less spread in Hough space. Since the method does not rely on any image structure beyond the existence of edgels sharing some common orientations and does not use edge fitting, it is applicable to a wide variety of image types. For instance, it can be applied equally well to images of texture with weak but dominant orientations, or images with strong vanishing points. Finally, the method is performed on both synthetic and real data revealing that it is particularly robust to noise.
description: 9 pages, 5 figures Corrected errors in equation 18
Proceedings 37th Conference on Mathematical Foundations of Programming Semantics
Creators: name: Sokolova, Ana
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Formal Languages and Automata Theory (cs.FL)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: MFPS conferences are dedicated to the areas of mathematics, logic, and computer science that are related to models of computation in general, and to semantics of programming languages in particular. This is a forum where researchers in mathematics and computer science can meet and exchange ideas. The participation of researchers in neighbouring areas is strongly encouraged. Topics include, but are not limited to, the following: bio-computation; concurrent qualitative and quantitative distributed systems; process calculi; probabilistic systems; constructive mathematics; domain theory and categorical models; formal languages; formal methods; game semantics; lambda calculus; programming-language theory; quantum computation; security; topological models; logic; type systems; type theory. We also welcome contributions that address applications of semantics to novel areas such as complex systems, markets, and networks, for example.
title: Household saving
Creators: name: Steindl, Josef
Year: 2017

description: Titel fingiert. - Entstehungszeitraum nach 1980.
description: Manuskript, Konvolut aus handschriftlichen Notizen und statistischen Auswertungen zum Thema Sparen der Haushalte, 51 Seiten und 5 Overheadfolien
title: Polemic with the Empirical School in Galen’s Exhortation to the Study of Medicine
Creators: name: Koryuk, Ksenia
Publisher: name: Hyperboreus 28: 1 (2022) 144–158
Year: 2022

description: Galen classifies his treatise “Exhortation” as a work against the empirical school (De libr. propr. 19. 38. 19). The extant part of the treatise, at first glance, does not contain a criticism of the empiricists. The mss of the list of Galen’s works yield the view that the title of the treatise was actually “On the treatise by Menodotus to Severus Exhortation to the study of medicine”, and some scholars believe that the second (now lost) part of the treatise could have contained a criticism of the teachings of the empiricist physician Menodotus and that this is the only way to explain the belonging of the treatise to the number of works against the empiricists. The other scholars doubt that polemics with Menodotus played any role in the treatise, and reject the alternative title. The character of Galen’s polemics against the empiricists thus remains obscure. A closer look at the content of the surviving part allows us to detect Galen’s argumentation against the empiricists at least partially. Almost half of the text is devoted to critical discourse on the harmful effects of professional athletics and the work of trainers. In one of his works (De simpl. med. temp. 11. 476. 14 – 477. 5) Galen literally puts sports trainers and an empiricist physician on a par. In his view, both the trainer and the empiricist physician practiced the same method of examination. Therefore, there is reason to believe that Galen could have chosen trainers to illustrate how the empirical method can be misused in professional practice.
description: Гален классифицирует свой трактат “Протрептик” как сочинение против ­эмпирической школы (De libr. propr. 19. 38. 19). Дошедшая часть трактата, на первый взгляд, не содержит критики эмпириков. Рукопись De libr. propr. позволяет думать, что в названии трактата значилось “На сочинение Менодота Северу Побуждение к изучению медицины”, и некоторые ученые считают, что вторая (нынче утраченная) часть трактата могла содержать критику учения врача-эмпирика Менодота и что только так можно объяснить принад­лежность трактата к числу сочинений против эмпириков. Другие ученые сомневаются, что полемика с Менодотом играла какую-либо роль в трактате, и отвергают альтернативное название. Таким образом, характер полемики Галена с эмпириками остается неясным. Более пристальный взгляд на содержание сохранившейся части позволит хотя бы частично обнаружить аргу­ментацию Галена, направленную против эмпириков. Почти половина текста посвящена критическому рассуждению о вреде профессионального спорта и работы тренеров. В одной из своих работ (De simpl. med. temp. 11. 476. 14 – 477. 5) Гален буквально ставит в один ряд спортивных тренеров и врача-­эмпирика. По его мнению, и тренер, и врач-эмпирик практиковали один и тот же метод исследования. Следовательно, есть основания полагать, что Гален мог выбрать тренеров, чтобы проиллюстрировать, как эмпирический метод может быть неправильно использован в профессиональной практике.
Thermodynamics of black branes in asymptotically Lifshitz spacetimes
Creators: name: Bertoldi, Gaetano
name: Burrington, Benjamin A.
name: Peet, Amanda W.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, a class of gravitational backgrounds in 3+1 dimensions have been proposed as holographic duals to a Lifshitz theory describing critical phenomena in 2+1 dimensions with critical exponent $z\geq 1$. We continue our earlier work \cite{Bertoldi:2009vn}, exploring the thermodynamic properties of the "black brane" solutions with horizon topology $\mathbb{R}^2$. We find that the black branes satisfy the relation $\mathcal{E}=\frac{2}{2+z}Ts$ where $\mathcal{E}$ is the energy density, $T$ is the temperature, and $s$ is the entropy density. This matches the expected behavior for a 2+1 dimensional theory with a scaling symmetry $(x_1,x_2)\to λ(x_1,x_2)$, $t\to λ^z t$.
description: 8 pages, references added and regrouped
title: The Trend of Houshold Savings
Creators: name: Steindl, Josef
Year: 2017

description: Steindl analyses the increase in household savings. "The trend in household saving necessitates a reorientation, a shift in attitudes as far as full employment policy is concerned: As a potential threat to employment, the share of full employment profits in GDP recedes slightly into the background and the compostition and inequality of personal incomes steps into the foreground. Not only the functional distribution, even more the personal distribution of incomes becomes relevant for effective demand." (Auszug, S. 2)
description: Manuskript, 7 lose Blätter, 8 Seiten, nummeriert und geheftet
AU Dataset for Visuo-Haptic Object Recognition for Robots
Creators: name: Bonner, Lasse Emil R.
name: Buhl, Daniel Daugaard
name: Kristensen, Kristian
name: Navarro-Guerrero, Nicolás
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Multimodal object recognition is still an emerging field. Thus, publicly available datasets are still rare and of small size. This dataset was developed to help fill this void and presents multimodal data for 63 objects with some visual and haptic ambiguity. The dataset contains visual, kinesthetic and tactile (audio/vibrations) data. To completely solve sensory ambiguity, sensory integration/fusion would be required. This report describes the creation and structure of the dataset. The first section explains the underlying approach used to capture the visual and haptic properties of the objects. The second section describes the technical aspects (experimental setup) needed for the collection of the data. The third section introduces the objects, while the final section describes the structure and content of the dataset.
Co-propagation of QKD & 6 Tb/s (60x100G) DWDM channels with ~17 dBm total WDM power in single and multi-span configurations
Creators: name: Gavignet, P.
name: Pincemin, E.
name: Herviou, F.
name: Loussouarn, Y.
name: Mondain, F.
name: Grant, A. J.
name: Johnson, L.
name: Woodward, R. I.
name: Dynes, J. F.
name: Summers, B.
name: Shields, A. J.
name: Taira, K.
name: Sato, H.
name: Zink, R.
name: Grempka, V.
name: Castay, V.
name: Zou, J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report co-propagation experiments of the quantum channel (at 1310 nm) of a Quantum Key Distribution (QKD) system with Dense Wavelength Division Multiplexing (DWDM) data channels in the 1550 nm range. Two configurations are assessed. The first one is a single span configuration where various lengths of Standard Single Mode Fiber (SSMF) (from 20 to 70 km) are used and the total WDM channels power is varied. The Secure Key Rate (SKR) and the Quantum Bit Error Ratio (QBER) are recorded showing that up to ~17 dBm total power of 30 or 60 channels at 100 Gb/s can coexist with the quantum channel. A metric to evaluate the co-propagation efficiency is also proposed to better evaluate the ability of a QKD system to provide secure keys in a co-propagation regime. The second experiment is a three spans link with a cascade of three QKD systems and two trusted nodes in a 184 km total link length. We report the transmission of a coherent 400 Gb/s Dual Polarization DP-16QAM (Quadrature Amplitude Modulation) channel that transports a QKD secured 100 GbE data stream, with other fifty-four 100 Gb/s WDM channels. Encryption is demonstrated at the same time as co-propagation.
description: arXiv admin note: text overlap with arXiv:2305.13742
Topological interactions between ring polymers: Implications for chromatin loops
Creators: name: Bohn, Manfred
name: Heermann, Dieter W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Chromatin looping is a major epigenetic regulatory mechanism in higher eukaryotes. Besides its role in transcriptional regulation, chromatin loops have been proposed to play a pivotal role in the segregation of entire chromosomes. The detailed topological and entropic forces between loops still remain elusive. Here, we quantitatively determine the potential of mean force between the centers of mass of two ring polymers, i.e. loops. We find that the transition from a linear to a ring polymer induces a strong increase in the entropic repulsion between these two polymers. On top, topological interactions such as the non-catenation constraint further reduce the number of accessible conformations of close-by ring polymers by about 50%, resulting in an additional effective repulsion. Furthermore, the transition from linear to ring polymers displays changes in the conformational and structural properties of the system. In fact, ring polymers adopt a markedly more ordered and aligned state than linear ones. The forces and accompanying changes in shape and alignment between ring polymers suggest an important regulatory function of such a topology in biopolymers. We conjecture that dynamic loop formation in chromatin might act as a versatile control mechanism regulating and maintaining different local states of compaction and order.
description: 12 pages, 11 figures. The article has been accepted by The Journal Of Chemical Physics. After it is published, it will be found at http://jcp.aip.org
More supplements to a class of logarithmically completely monotonic functions associated with the gamma function
Creators: name: Guo, Senlin
name: Qi, Feng
Publisher: name: arXiv
Year: 2009
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 33B15, 26A48, 26A51, 26D20, 65R10

description: In this article, a necessary and sufficient condition and a necessary condition are established for a function involving the gamma function to be logarithmically completely monotonic on $(0,\infty)$. As applications of the necessary and sufficient condition, some inequalities for bounding the psi and polygamma functions and the ratio of two gamma functions are derived.
description: 8 pages
Ellipsoidal equilibrium figure and Cassini states of rotating planets and satellites deformed by a tidal potential in the spatial case
Creators: name: Folonier, Hugo A.
name: Boué, Gwenaël
name: Ferraz-Mello, Sylvio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The equilibrium figure of an inviscid tidally deformed body is the starting point for the construction of many tidal theories such as Darwinian tidal theories or the hydrodynamical Creep tide theory. This paper presents the ellipsoidal equilibrium figure when the spin rate vector of the deformed body is not perpendicular to the plane of motion of the companion. We obtain the equatorial and the polar flattenings as functions of the Jeans and the Maclaurin flattenings, and of the angle $θ$ between the spin rate vector and the radius vector. The equatorial vertex of the equilibrium ellipsoid does not point toward the companion, which produces a torque perpendicular to the rotation vector, which introduces terms of precession and nutation. We find that the direction of spin may differ significantly from the direction of the principal axis of inertia $C$, so the classical approximation $\mathsf{I}\vecω\approx C\vecω$ only makes sense in the neighborhood of the planar problem. We also study the so-called Cassini states. Neglecting the short-period terms in the differential equation for the spin direction and assuming a uniform precession of the line of the orbital ascending node, we obtain the same differential equation as that found by Colombo (1966). That is, a tidally deformed inviscid body has exactly the same Cassini states as a rotating axisymmetric rigid body, the tidal bulge having no secular effect at first order.
description: 17 pages, 7 figures
title: Transition from Command to Market Economies in Central and Eastern Europe: First Experiences and Questions
Creators: name: Łaski, Kazimierz
Year: 2017
Subjects: subject: Osteuropa Systemtransformation Stabilitätspolitik

description: We start this paper by investigating the sequencing of the transition towards a market economy (the alternative of a shock versus a more gradual therapy). Then we go on to stabilization and recession as necessery phenomena during tranistion from a a command towards a market economy. The relation between stabilization policy and growth is analysed in the next chapter. Finally we will devote some thoughts to ideological matters. (Auszug S. 3)
description: 31 Blätter
Numerical algorithms for the solution of a single phase one-dimensional Stefan problem
Creators: name: Milinazzo, Fausto
Publisher: name: University of British Columbia
Year: 2010

description: A one-dimensional, single phase Stefan Problem is considered. This problem is shown to have a unique solution which depends continuously on the boundary data. In addition two algorithms are formulated for its approximate numerical solution. The first algorithm (the Similarity Algorithm), which is based on Similarity, is shown to converge with order of convergence between one half and one. Moreover, numerical examples illustrating various aspects of this algorithm are presented. In particular, modifications to the algorithm which are suggested by the proof of convergence are shown to improve the numerical results significantly. Furthermore, a brief comparison is made between the algorithm and a well-known difference scheme. The second algorithm (a Collocation Scheme) results from an attempt to reduce the problem to a set of ordinary differential equations. It is observed that this set of ordinary differential equations is stiff. Moreover, numerical examples indicate that this is a high order scheme capable of achieving very accurate approximations. It is observed that the apparent stiffness of the system of ordinary differential equations renders this second algorithm relatively inefficient.
An Extension of the Theory of Kinematic MHD Models of Collapsing Magnetic Traps to 2.5D with shear flow and to 3D
Creators: name: Grady, Keith J.
name: Neukirch, Thomas
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context: During solar flares a large number of charged particles are accelerated to high energies, but the exact mechanism responsible for this is, so far, still unclear. Acceleration in collapsing magnetic traps is one of the mechanisms proposed. Aims: In the present paper we want to extend previous 2D models for collapsing magnetic traps to 3D models and to 2D models with shear flow. Methods: We use analytic solutions of the kinematic magnetohydrodynamic (MHD) equations to construct the models. Particle orbits are calculated using the guiding centre approximation. Results: We present a general theoretical framework for constructing kinematic MHD models of collapsing magnetic traps in 3D and in 2D with shear flow. A few illustrative examples of collapsing trap models are presented, together with some preliminary studies of particle orbits. For these example orbits, the energy increases roughly by a factor of 5 or 6, which is consistent with the energy increase found in previous 2D models.
description: 8 pages, 10 figures. To be published in Astronomy & Astrophysics
Optimized pulses for population transfer via laser induced continuum structures
Creators: name: Stefanatos, Dionisis
name: Paspalakis, Emmanuel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We use optimal control in order to find the optimal shapes of pulses maximizing the population transfer between two bound states which are coupled via a continuum of states. We find that the optimal bounded controls acquire the bang-interior and interior-bang form, with the bang part corresponding to the maximum allowed control value and the interior part to values between zero and the maximum. Then, we use numerical optimal control to obtain the switching times and the interior control values. We compare our results with those obtained using Gaussian STIRAP pulses, and find that the optimal method performs better, with the extent of improvement depending on the effective two-photon detuning and the size of incoherent losses. When we consider effective two-photon resonance, the improvement is more dramatic for larger incoherent losses, while when we take into account the effective two-photon detuning, the improvement is better for smaller incoherent losses. We also obtain how the transfer efficiency increases with increasing absolute value of the Fano factor. The present work is expected to find application in areas where the population transfer between two bound states through a continuum structure plays an important role, for example coherence effects, like population trapping and electromagnetically induced transparency, optical analogs for light waves propagating in waveguide-based photonic structures, and qubits coupled via a continuum of bosonic or waveguide modes.
Kshirsagar--Tan independence property of beta matrices and related characterizations
Creators: name: Bobecka, Konstancja
name: Wesołowski, Jacek
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: A new independence property of univariate beta distributions, related to the results of Kshirsagar and Tan for beta matrices, is presented. Conversely, a characterization of univariate beta laws through this independence property is proved. A related characterization of a family of $2\times2$ random matrices including beta matrices is also obtained. The main technical challenge was a problem involving the solution of a related functional equation.
description: Published in at http://dx.doi.org/10.3150/07-BEJ118 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
title: The Distribution of Wealth under a Progressive Estate Tax
Creators: name: Steindl, Josef
Year: 2017
Subjects: subject: Vermögensverteilung Vermögenssteuer

description: This paper is a sequel to my previous paper "the distribution of wealth after a model of Wold and Whittle", and it retains practically all assumptions, except that allowance is now made for a progressive estate tax. As a consequence the additive process of the former model has to be replaced by a more general process. acquired wealth, inheritance of wealth, taxation.
description: Manuskript, 18 lose Blätter, zum Teil nummeriert