cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Das heutige Führungspersonal der bundesdeutschen Gewerkschaften und zukünftige Anforderungen am Beispiel ÖTV
Creators: name: Wulf-Mathies, Monika
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Das heutige Führungspersonal der bundesdeutschen Gewerkschaften und zukünftige Anforderungen am Beispiel ÖTV" of MTS 9 (1990).
description: Moving the Social, Vol 9 (1990): "Gründerväter - Bürokraten - Akademiker". Zur Rekrutierung des gewerkschaftlichen Führungspersonals
Stronger superadditivity relations for multiqubit systems
Creators: name: Ren, Ya-Ya
name: Wang, Zhi-Xi
name: Fei, Shao-Ming
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Superadditivity relations characterize the distributions of coherence in multipartite quantum systems. In this work, we investigate the superadditivity relations related to the $l_1$-norm of coherence $C_{l_1}$ in multiqubit quantum systems. Tighter superadditivity inequalities based on the $α$-th ($α\geqslant 1$) power of $l_1$-norm of coherence are presented for multiqubit states under certain conditions, which include the existing results as special cases. These superadditivity relations give rise to finer characterization of the coherence distributions among the subsystems of a multipartite system. A detailed example is presented.
description: 6 pages, 1 figure
Experimental demonstration of quantum teleportation of broadband squeezing
Creators: name: Yonezawa, Hidehiro
name: Braunstein, Samuel L.
name: Furusawa, Akira
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate an unconditional high-fidelity teleporter capable of preserving the broadband entanglement in an optical squeezed state. In particular, we teleport a squeezed state of light and observe $-0.8 \pm 0.2$dB of squeezing in the teleported (output) state. We show that the squeezing criterion translates directly into a sufficient criterion for entanglement of the upper and lower sidebands of the optical field. Thus, this result demonstrates the first unconditional teleportation of broadband entanglement. Our teleporter achieves sufficiently high fidelity to allow the teleportation to be cascaded, enabling, in principle, the construction of deterministic non-Gaussian operations.
Despeckling Polarimetric SAR Data Using a Multi-Stream Complex-Valued Fully Convolutional Network
Creators: name: Mullissa, Adugna G.
name: Persello, Claudio
name: Reiche, Johannes
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: A Polarimetric Synthetic Aperture Radar (PolSAR) sensor is able to collect images in different polarization states, making it a rich source of information for target characterization. PolSAR images are inherently affected by speckle. Therefore, before deriving ad hoc products from the data, the polarimetric covariance matrix needs to be estimated by reducing speckle. In recent years, deep learning based despeckling methods have started to evolve from single channel SAR images to PolSAR images. To this aim, deep learning based approaches separate the real and imaginary components of the complex-valued covariance matrix and use them as independent channels in a standard convolutional neural networks. However, this approach neglects the mathematical relationship that exists between the real and imaginary components, resulting in sub-optimal output. Here, we propose a multi-stream complex-valued fully convolutional network to reduce speckle and effectively estimate the PolSAR covariance matrix. To evaluate the performance of CV-deSpeckNet, we used Sentinel-1 dual polarimetric SAR images to compare against its real-valued counterpart, that separates the real and imaginary parts of the complex covariance matrix. CV-deSpeckNet was also compared against the state of the art PolSAR despeckling methods. The results show CV-deSpeckNet was able to be trained with a fewer number of samples, has a higher generalization capability and resulted in a higher accuracy than its real-valued counterpart and state-of-the-art PolSAR despeckling methods. These results showcase the potential of complex-valued deep learning for PolSAR despeckling.
หน่วยความจำเปลี่ยนเฟส : เทคโนโลยีบันทึกข้อมูลแห่งอนาคต ตอนที่ 2
Creators: name: สันชัย หาญสูงเนิน
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: เทคโนโลยีบันทึกข้อมูล, หน่วยความจำแบบไม่ลบเลือน, หน่วยความจำเปลี่ยนเฟส

description: 3, 32, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Alfalfa for Dryland Grazing
Creators: name: Lorenz, Russell J.
name: Ríes, Ronald E.
name: Cooper, Clee S.
name: Townsend, Charles E.
name: Rumbaugh, Melvin D.
name: Lorenz, Russell J.
name: Ríes, Ronald E.
name: Cooper, Clee S.
name: Townsend, Charles E.
name: Rumbaugh, Melvin D.
Publisher: name: Unknown
Year: 1982
Subjects: subject: Crop Production/Industries
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: alfalfa
subject: dryland grazing
subject: crested wheatgrass
subject: Russian wildrye
subject: legumes
subject: drought

description: This publication is a compilation of literature review and concepts by alfalfa breeders, agronomists, and a range scientist on dryland grazing in the Northern Great Plains and other Western States. The authors report on such aspects of alfalfa production as persistence under dryland grazing, physiological characteristics contributing toward longevity, diseases and insects of alfalfa, and availability of sources of germplasm.
Geometry-induced enhancement factor improvement in covered-gold-nanorod-dimer antennas
Creators: name: Ramos, Iván A.
name: Hilario, L. M. León
name: Pedano, María L.
name: Reynoso, Andres A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Illuminated gapped-gold-nanorod dimers hold surface plasmon polaritons (SPPs) that can be engineered, by an appropriate choice of geometrical parameters, to enhance the electromagnetic field at the gap, allowing applications in molecular detection via surface-enhanced Raman spectroscopy (SERS). Envisioning hybrid devices in which the SERS spectroscopy of molecules in the gap is complemented by electrical measurements, it arises the question of designing efficient geometries to contact the nanorods without decreasing the enhancement factor (EF) of the nanoantenna, i.e., the figure of merit for SERS spectroscopy. Within this framework we theoretically study the feasibility to fabricate designs based on covering with gold the far-from-the-gap areas of the dimer. We show that by tuning the geometrical parameters of the designs these systems can reach enhancement factors larger than the best achieved in the uncovered dimer: this supremacy survives even in the presence of dimer asymmetries and vacancies at the interfaces between the nanorods and the covering layers. Our results show that geometrical modifications away from the gap can improve the optical response at the gap, thus enabling the use of these devices both for hybrid and optical applications.
description: 10 pages, 8 figures
The RMS Survey: 13CO observations of candidate massive YSOs in the southern hemisphere
Creators: name: Urquhart, J. S.
name: Busfield, A. L.
name: Hoare, M. G.
name: Lumsden, S. L.
name: Oudmaijer, R. D.
name: Moore, T. J. T.
name: Gibb, A. G.
name: Purcell, C. R.
name: Burton, M. G.
name: Marechal, L. J. L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Abridged: The Red MSX Source (RMS) survey is an ongoing multi-wavelength observational programme designed to return a large, well-selected sample of massive young stellar objects (MYSOs). Here we present 13CO observations made towards 854 MYSOs candidates located in the 3rd and 4th quadrants. We detected 13CO emission towards a total of 751 of the 854 RMS sources observed (~88%). In total 2185 emission components are detected above 3$σ$ level. Multiple emission profiles are observed towards the majority of these sources - 455 sources (~60%) - with an average of ~4 molecular clouds along the line of sight. These multiple emission features make it difficult to assign a kinematic velocity to many of our sample. We have used archival CS (J=2-1) and maser velocities to resolved the component multiplicity towards 82 sources and have derived a criterion which is used to identify the most likely component for a further 202 multiple component sources. Combined with the single component detections we have obtained unambiguous kinematic velocities towards 580 sources (~80% of the detections). The 171 sources for which we have not been able to determine the kinematic velocity will require additional line data. Using the rotation curve of Brand and Blitz (1993) and their radial velocities we calculate kinematic distances for all components detected.
description: Summitted to A&A, the resolution of figure 1 has been reduced, samples of Table 3 and Figure 11 are now included but the full version will only be available in the online version of the journal
Physics of Non-Inertial Reference Frames
Creators: name: Kamalov, Timur F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Physics (physics.class-ph)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Physics of non-inertial reference frames is a generalizing of Newton's laws to any reference frames. The first, Law of Kinematic in non-inertial reference frames reads: the kinematic state of a body free of forces conserves and determinates a constant n-th order derivative with respect to time being equal in absolute value to an invariant of the observer's reference frame. The second, Law of Dynamic extended Newton's second law to non-inertial reference frames and also contains additional variables there are higher derivatives of coordinates. Dynamics Law in non-inertial reference frames reads: a force induces a change in the kinematic state of the body and is proportional to the rate of its change. It is mean that if the kinematic invariant of the reference frame is n-th derivative with respect the time, then the dynamics of a body being affected by the force F is described by the (n+1)-th differential equation. The third, Law of Static in non-inertial reference frames reads: the sum of all forces acting a body at rest is equal to zero.
description: 7 pages, Latex
Bs Physics at CDF and D0
Creators: name: Evans, Harold G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Run II at the Tevatron has seen an explosion of results related to the Bs meson, ranging from tests of QCD models, to probes of electro-weak symmetry breaking, to direct searches for new physics effects. I will briefly summarize the CDF and D0 Bs-physics programs, describing the suitability of the detectors for doing this kind of physics, and pointing out how our knowledge of important quantities has improved through Run II measurements.
description: added Fermilab-Conf number, corrected two misquoted theoretical results
Asymptotic Behaviors in Commutative Algebra and Algebraic Geometry
Creators: name: Li, Jiamin
Publisher: name: University of Illinois at Chicago
Year: 2024

description: We study three types of asymptotic behaviors in commutative algebra: limit of length of
local cohomology of thickenings, degrees of generators of socle of local cohomology of thickenings
and limit of F-pure thresholds. In Chapter 1 and 2 we will review necessary background and
motivations for the questions that we study. Chapter 3 will be devoted to the study of limit of
length of local cohomology of determinantal thickenings, where the author proves the existence
of such limits and find closed formulae for the generalized multiplicities of interest (this is
the content of (1)). Chapter 4 is joint work with Perlman (this is the content of (2)). We
will continue the investigation of local cohomology modules of determinantal thickenings, this
time we turn our attention to their socle. In particular, precise formulas of socle degrees are
proved. Finally, in Chapter 5 we will study singularities of pairs in both zero and positive
characteristic, where the main object of study is linkage of ideals, and the relation of least
critical exponents of a pair and its linkage has been proved. The author also applies this result
to deduce corresponding results on F-pure thresholds and log canonical thresholds (this is the
content of (3)).
Graph-Aware Evolutionary Algorithms for Influence Maximization
Creators: name: Konotopska, Kateryna
name: Iacca, Giovanni
Publisher: name: arXiv
Year: 2021
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Social networks represent nowadays in many contexts the main source of information transmission and the way opinions and actions are influenced. For instance, generic advertisements are way less powerful than suggestions from our contacts. However, this process hugely depends on the influence of people who disseminate these suggestions. Therefore modern marketing often involves paying some targeted users, or influencers, for advertising products or ideas. Finding the set of nodes in a social network that lead to the highest information spread -- the so-called Influence Maximization (IM) problem -- is therefore a pressing question and as such it has recently attracted a great research interest. In particular, several approaches based on Evolutionary Algorithms (EAs) have been proposed, although they are known to scale poorly with the graph size. In this paper, we tackle this limitation in two ways. Firstly, we use approximate fitness functions to speed up the EA. Secondly, we include into the EA various graph-aware mechanisms, such as smart initialization, custom mutations and node filtering, to facilitate the EA convergence. Our experiments show that the proposed modifications allow to obtain a relevant runtime gain and also improve, in some cases, the spread results.
description: To be published in the proceedings of ACM Genetic and Evolutionary Computation Conference (GECCO) Companion 2021
Optimal induction of tumor necrosis factor production in human monocytes requires complete S-form lipopolysaccharide
Creators: name: Männel, D. N.
name: Falk, Werner
Publisher: name: Universität Regensburg
Year: 1989
Subjects: subject: 610 Medizin
subject: Cell Line
subject: Cell-Free System
subject: Fibrosarcoma/pathology
subject: Humans
subject: Lipopolysaccharides/pharmacology
subject: Monocytes/metabolism
subject: Nucleic Acid Hybridization
subject: RNA, Messenger/biosynthesis
subject: Salmonella/immunology
subject: Tumor Cells, Cultured/pathology
subject: Tumor Necrosis Factor-alpha/toxicity

description: Optimal activation of human monocytes in vitro for the biosynthesis of tumor necrosis factor was achieved only with complete S-form lipopolysaccharide. Endotoxin preparations with shorter carbohydrate chains or the lipid A component of lipopolysaccharide were not able to induce release of comparable amounts of tumor necrosis factor by monocytes under the conditions described. The same differences in the level of tumor necrosis factor mRNA were observed. Moreover, addition of these agents to appropriate monocyte-activating substances inhibited the production of tumor necrosis factor. The regulatory implications of this phenomenon are discussed.
Evidence Suggesting that 'Oumuamua is the ~30 Myr-old product of a Molecular Cloud
Creators: name: Hsieh, Cheng-Han
name: Laughlin, Gregory
name: Arce, Hector G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The appearance of interstellar objects (ISOs) in the Solar System -- and specifically the arrival of 1I/'Oumuamua -- points to a significant number density of free-floating bodies in the solar neighborhood. We review the details of 'Oumuamua's pre-encounter galactic orbit, which intersected the Solar System at very nearly its maximum vertical and radial excursion relative to the galactic plane. These kinematic features are strongly emblematic of nearby young stellar associations. We obtain an a-priori order-of-magnitude age estimate for 'Oumuamua by comparing its orbit to the orbits of 50,899 F-type stars drawn from Gaia DR2; a diffusion model then suggests a $\sim$ 35 Myr dynamical age. We compare 'Oumuamua's orbit with the trajectories of individual nearby moving groups, confirming that its motion is fully consistent with membership in the Carina (CAR) moving group with an age around 30 Myr. We conduct Monte Carlo simulations that trace the orbits of test particles ejected from the stars in the Carina association. The simulations indicate that in order to uniformly populate the $\sim10^6$ pc$^3$ volume occupied by CAR members with the inferred number density, $n=0.2\,{\rm AU}^{-3}$, of ISOs implied by Pan-STARRS' detection of 'Oumuamua, the required ejection mass is $M\sim 500$ $M_{\rm Jup}$ per known star within the CAR association. This suggests that the Pan-STARRS observation is in significant tension with scenarios that posit 'Oumuamua's formation and ejection from a protostellar disk.
description: 12 pages, 6 figures; accepted by ApJ 2021.5.29
Joint Analysis of Multicolor Photometry: A New Approach to Constrain the Nature of Multiple-Star Systems Hosting Exoplanet Candidates
Creators: name: Miyakawa, Kohei
name: Hirano, Teruyuki
name: Sato, Bun'ei
name: Fukui, Akihiko
name: Narita, Norio
Publisher: name: arXiv
Year: 2021
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: We present a new method to assess the properties of transiting planet candidates by multicolor photometry. By analyzing multicolor transit/eclipse light curves and apparent magnitudes of the target in parallel, this method attempts to identify the nature of the system and provide a quantitative constraint on the properties of unresolved companion(s). We demonstrate our method by observing the six systems hosting candidate transiting planets, identified by the K2 mission (EPIC 206036749, EPIC 206500801, EPIC 210513446, EPIC 211800191, EPIC 220621087, and EPIC 220696233). Applying our analysis code to the six targets, we find that EPIC 206036749, EPIC 210513446, and EPIC 211800191 are likely to be triple-star systems including eclipsing binaries, and EPIC 220696233 is likely a planetary system, albeit further observations are required to confirm the nature. Additionally, we confirm that the systematic errors in the derived system parameters arising from adopting specific isochrone models and observing instruments (passbands) are relatively small. While this approach alone is not powerful enough to validate or refute planet candidates, the technique allows us to constrain the properties of resolved/unresolved companions, and prioritize the planet candidates for further follow-up observations (e.g., radial-velocity measurements).
description: 17 pages, 5 figures, 6 tables; published in AJ
Visual analytics algorithms for multidimensional astronomical data
Creators: name: Vohl, Dany
Publisher: name: Zenodo
Year: 2019
Subjects: Visualisation, Data cube

description: The growth rate at which radio astronomy data is captured is accelerating thanks to recent developments in phased-array feed technology that increases the field of view of radio telescopes. With this improved instantaneous field of view, the number of known neutral hydrogen (HI) sources is set to increase rapidly with SKA precursor’s wide-field surveys. This large field of view is inherently linked to large data volume and data rate. To be able to rapidly process large datasets, and explore information hidden within this data, new algorithmic approaches and analytical tools are required. Graphics shaders—algorithms interpreted at runtime to process and visualise data in real-time—can alleviate bottlenecks caused by today’s data challenges and hardware limitations. On highly parallel hardware like graphics processing units (GPU), thousands of shaders can be computed in realtime. The graphics pipeline of modern GPUs allows for the development of custom vertex, geometry and fragment shaders that can be exploited to improve on astronomy-centered analytical visualisation practices. In this talk, I will present 3D statistical visualisation algorithms that can be used as building blocks in a streaming framework to rapidly explore data ranging from hyperspectral and multiwavelength imaging studies of galaxies, planetary nebulae, and time-domain astronomy in an intuitive manner.
Subradiant-to-Subradiant Phase Transition in the Bad Cavity Laser
Creators: name: Shankar, Athreya
name: Reilly, Jarrod T.
name: Jäger, Simon B.
name: Holland, Murray J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We show that the onset of steady-state superradiance in a bad cavity laser is preceded by a dissipative phase transition between two distinct phases of steady-state subradiance. The transition is marked by a non-analytic behavior of the cavity output power and the mean atomic inversion, as well as a discontinuity in the variance of the collective atomic inversion. In particular, for repump rates below a critical value, the cavity output power is strongly suppressed and does not increase with the atom number, while it scales linearly with atom number above this value. Remarkably, we find that the atoms are in a macroscopic entangled steady state near the critical region with a vanishing fraction of unentangled atoms in the large atom number limit.
description: 6 pages Main Text + 7 pages Supplemental Material
Unparticle physics at hadron collider via dilepton production
Creators: name: Mathews, Prakash
name: Ravindran, V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The scale invariant unparticle physics recently proposed by Georgi could manifest at low energies as non integral number d_U of invisible particles. Unparticles if existing, could couple to the Standard Model fields and consequently affect the collider phenomenology. We consider the DY process to explore effects of the peculiar propagator of the scalar and tensor unparticle operators. To probe these effects at hadron collider one needs to go beyond LO in QCD and hence the quantitative impact of QCD corrections for unparticle physics at LHC is investigated. We present the K-factors at LHC. Inclusion of QCD corrections to NLO stabilises the cross section with respect to scale variations.
description: 11 pages, 9 figures, version to appear in Phys. Lett. B
A numerical exploration of signal detector arrangement in a spin-wave reservoir computing device
Creators: name: Ichimura, Takehiro
name: Nakane, Ryosho
name: Tanaka, Gouhei
name: Hirose, Akira
Publisher: name: arXiv
Year: 2021
Subjects: subject: Emerging Technologies (cs.ET)
subject: Applied Physics (physics.app-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: This paper studies numerically how the signal detector arrangement influences the performance of reservoir computing using spin waves excited in a ferrimagnetic garnet film. This investigation is essentially important since the input information is not only conveyed but also transformed by the spin waves into high-dimensional information space when the waves propagate in the film in a spatially distributed manner. This spatiotemporal dynamics realizes a rich reservoir-computational functionality. First, we simulate spin waves in a rectangular garnet film with two input electrodes to obtain spatial distributions of the reservoir states in response to input signals, which are represented as spin vectors and used for a machine-learning waveform classification task. The detected reservoir states are combined through readout connection weights to generate a final output. We visualize the spatial distribution of the weights after training to discuss the number and positions of the output electrodes by arranging them at grid points, equiangularly circular points or at random. We evaluate the classification accuracy by changing the number of the output electrodes, and find that a high accuracy ($>$ 90\%) is achieved with only several tens of output electrodes regardless of grid, circular or random arrangement. These results suggest that the spin waves possess sufficiently complex and rich dynamics for this type of tasks. Then we investigate in which area useful information is distributed more by arranging the electrodes locally on the chip. Finally, we show that this device has generalization ability for input wave-signal frequency in a certain frequency range. These results will lead to practical design of spin-wave reservoir devices for low-power intelligent computing in the near future.
Chiral loop corrections to weak decays of B mesons to positive and negative parity charmed mesons
Creators: name: Eeg, Jan O.
name: Fajfer, Svjetlana
name: Kamenik, Jernej
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We determine chiral loop corrections to the B meson decay amplitudes to positive and negative parity charmed mesons within a framework which combines heavy quark and chiral symmetries. Then we investigate the impact of the lowest-lying positive parity heavy mesons on the determination of the Isgur-Wise functions. The corrections due to these states are competitive with the contributions arising from K and eta meson loops. Since lattice studies rely on the chiral behavior of the amplitudes we discuss the chiral limit of our results. We find that the determination of the slope at zero recoil of the Isgur-Wise function xi for the B transition to negative parity charm mesons is moderately affected by the inclusion of new states, while the slope of tau_{1/2} is affected significantly more.
description: 10 pages, 4 figures
title: «Зеленые» финансы: процесс развития и перспективы трансформации
Creators: name: ELS IPR BOOKS
Publisher: name: Международный банковский институт имени Анатолия Собчака
Year: 2020

description: Монография посвящена «зеленым» финансам, которые выступают сегодня в качестве ресурсной основы процесса финансирования устойчивого развития. Рассмотрены ключевые вопросы, создающие теоретическую и практическую основу для понимания роли концепции устойчивого развития в обосновании новой модели «зеленой» экономики; значения проблемы финансирования «зеленого» роста и подходов к распределению ответственности между государством и рынком; сути и назначения «зеленых» финансовых инструментов; специфики трансформаций, происходящих в настоящее время на национальном и международном финансовом рынках в связи с формированием «зеленого» сегмента. Особое внимание уделено изучению процесса внедрения в российскую практику «зеленых» инвестиций, а также формирования институциональной среды «зеленого» финансирования в России. Формулируется позиция в отношении влияния «зеленых» финансов на трансформацию современной системы финансовых отношений и подходов к ведению финансового бизнеса. Высказывается мнение о важности психологической готовности личности к изменениям, формируемым в рамках новой «зеленой» модели экономического развития. Рекомендуется специалистам в области финансов и инвестиций, управления предприятием и государственного управления, международных экономических отношений и глобальных процессов, а также студентам и аспирантам.
Sutherland Models for Complex Reflection Groups
Creators: name: Crampe, N.
name: Young, C. A. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: There are known to be integrable Sutherland models associated to every real root system -- or, which is almost equivalent, to every real reflection group. Real reflection groups are special cases of complex reflection groups. In this paper we associate certain integrable Sutherland models to the classical family of complex reflection groups. Internal degrees of freedom are introduced, defining dynamical spin chains, and the freezing limit taken to obtain static chains of Haldane-Shastry type. By considering the relation of these models to the usual BC_N case, we are led to systems with both real and complex reflection groups as symmetries. We demonstrate their integrability by means of new Dunkl operators, associated to wreath products of dihedral groups.
description: 26 pages, 8 figures, latex; v3, acknowledgement added
Οι Έλληνες Εβραίοι στη Μεταπολεμική Ελλάδα: oι διαδρομές μιας ταυτότητας
Creators: name: Σιδηροπούλου, Μαρία Χ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Εβραϊκή ταυτότητα(-τες)
Εκκοσμίκευση
Αυτο-προσδιορισμός
Jewish identity(-ies)
Secularization
Self-determination

description: Η ανά χείρας διδακτορική διατριβή, συνιστά μια απόπειρα διερεύνησης της σχέσης μεταξύ δύο θεμελιακών εννοιών, της εκκοσμίκευσης και της εβραϊκής ταυτότητας στην Ελλάδα. Πιο αναλυτικά, η δ.δ. μέσα από την εκπόνηση μιας επιτόπιας εμπειρικής έρευνας επιδιώκει να μελετήσει, αφενός τον τρόπο με τον οποίο τα υποκείμενα της έρευνας αυτο-προσδιορίζονται όσον αφορά τη θρησκευτική τους ταυτότητα, τόσο ατομικά όσο και συλλογικά, και αφετέρου, επιχειρεί να διαφωτίσει τις ταυτοτικές διακλαδώσεις της μοντέρνας εβραϊκής ταυτότητας, σε σχέση με την ευρύτερη ελληνική κοινωνία.Στην παρούσα διατριβή, οι σύγχρονες κοσμικές όψεις της ελληνο-εβραϊκής ταυτότητας διερευνώνται στο συνεχώς μεταβαλλόμενο κόσμο και πιο ειδικά, στο πλαίσιο της εκκοσμικευμένης, τοπικής ελληνικής κοινωνίας. Η έρευνα εστιάζει συγκριτικά στις πόλεις: Των Αθηνών, της Θεσσαλονίκης, της Λάρισας και του Βόλου, εφόσον, η αντίληψη μιας ενιαίας εθνο-ιουδαϊκής ταυτότητας και εν προκειμένω της σεφαραδίτικης, δηλαδή της ισπανο-εβραϊκής είναι κυρίαρχη μεταπολεμικά σε ολόκληρη την ελλαδική επικράτεια. Με τη χρήση ποιοτικών και ποσοτικών μεθοδολογικών εργαλείων, διερευνάται πως εκφράζεται ο σημερινός αυτο-χαρακτηρισμός κάποιου/ας σε Εβραίο ή Εβραία στην Ελλάδα, τι υποδηλώνει, ποιες επιπλέον συνισταμένες περικλείει και το πως αυτές διαφοροποιούνται ανά γενιά τόσο εντός του εβραϊκού περιβάλλοντος, όσο και εκτός.
description: This PhD dissertation constitutes an attempt to explore the relationship between two fundamental concepts: Secularisation and Jewish identity in Greece. To be more specific, through an on-the-spot empirical research, the dissertation seeks to examine, on the one hand, the way in which the subjects of the research self-determine themselves in terms of religious identity, both individually and collectively, and, on the other, it attempts to elucidate the ramifications of modern Jewish identity and its interrelationships with the wider Greek society. In the present thesis, the contemporary secular aspects of the Greek-Jewish identity are examined within the ever-changing world and more specifically, within the context of the secularized local Greek society. The research focuses on the cities of Athens, Thessaloniki, Larissa and Volos, since the perception of a single ethnic-Jewish identity, and in this case the Sephardic, i.e. the Spanish-Jewish, is the dominant one throughout Greece in the post-war period. With the use of qualitative and quantitative methodological tools, it is explored how the self-characterization of a person as a Jew currently in Greece is expressed, what it implies, what additional components it includes and how those are differentiated from generation to generation both within and outside the Jewish environment.
Nonlinear equations for p-adic open, closed, and open-closed strings
Creators: name: Vladimirov, V. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We investigate the structure of solutions of boundary value problems for a one-dimensional nonlinear system of pseudodifferential equations describing the dynamics (rolling) of p-adic open, closed, and open-closed strings for a scalar tachyon field using the method of successive approximations. For an open-closed string, we prove that the method converges for odd values of p of the form p=4n+1 under the condition that the solution for the closed string is known. For p=2, we discuss the questions of the existence and the nonexistence of solutions of boundary value problems and indicate the possibility of discontinuous solutions appearing.
description: 16 pages, 3 figures
Multiplicity in Supersymmetric Spin Chains
Creators: name: Kagan, David
name: Young, Charles A. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We discuss a simple procedure for obtaining new integrable spin chains from old by replacing each single state of the original model by some collection of states. This works whenever the Lax matrix of the chain has a certain form. The simplest example is the su(n) XX model. We apply the techniques of the nested algebraic Bethe ansatz to solve such systems, in the bosonic and supersymmetric cases.
description: 14 pages. v2: Added references and minor corrections; v3: Acknowledgement added
Molecular Hydrogen emission from disks in the eta Chamaeleontis cluster
Creators: name: Howat, Suzanne K. Ramsay
name: Greaves, Jane S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Disks in the 6 Myr old cluster eta Chamaeleontis were searched for emission from hot H2. Around the M3 star ECHAJ0843.3-7905 we detect circumstellar gas orbiting at ~2 AU. If the gas is UV-excited, the ro-vibrational line traces a hot gas layer supported by a disk of mass ~0.03Msolar, similar to the minimum mass solar nebula. Such a gas reservoir at 6 Myr would promote the formation and inwards migration of gas giant planets.
description: Accepted for publication in MNRAS. 9 pages
Relative Hyperbolicity, Trees of Spaces and Cannon-Thurston Maps
Creators: name: Mj, Mahan
name: Pal, Abhijit
Publisher: name: arXiv
Year: 2007
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 20F32 (Primary), 57M50 (Secondary)

description: We prove the existence of continuous boundary extensions (Cannon-Thurston maps) for the inclusion of a vertex space into a tree of (strongly) relatively hyperbolic spaces satisfying the qi-embedded condition. This implies the same result for inclusion of vertex (or edge) subgroups in finite graphs of (strongly) relatively hyperbolic groups. This generalises a result of Bowditch for punctured surfaces in 3 manifolds and a result of Mitra for trees of hyperbolic metric spaces.
description: 27pgs No figs, v3: final version, incorporating referee's comments, to appear in Geometriae Dedicata
Transient effects in double quantum dot sandwiched laterally between superconducting and metallic leads
Creators: name: Taranko, R.
name: Wrześniewski, K.
name: Baran, B.
name: Weymann, I.
name: Domański, T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the transient phenomena appearing in a subgap region of the double quantum dot coupled in series between the superconducting and normal metallic leads, focusing on the development of the superconducting proximity effect. For the uncorrelated nanostructure we derive explicit expressions of the time-dependent occupancies in both quantum dots, charge currents, and electron pairing induced on individual dots and between them. We show that the initial configurations substantially affect the dynamical processes, in which the in-gap bound states emerge upon coupling the double quantum dot to superconducting reservoir. In particular, the superconducting proximity effect would be temporarily blocked whenever the quantum dots are initially singly occupied. Such {\it triplet}/{\it Andreev blockade} has been recently reported experimentally for double quantum dots embedded in the Josephson [D. Bouman et al., Phys. Rev. B 102, 220505 (2020)] and Andreev [P. Zhang et al., arXiv:2102.03283 (2021)] junctions. We also address the role of correlation effects within the lowest-order decoupling scheme and by the time-dependent numerical renormalization group calculations. Competition of the repulsive Coulomb interactions with the superconducting proximity effect leads to renormalization of the in-gap quasiparticles, speeding up the quantum oscillations and narrowing a region of transient phenomena, whereas the dynamical Andreev blockade is well pronounced in the weak inter-dot coupling limit. We propose feasible methods for detecting the characteristic time-scales that could be observable by the Andreev spectroscopy.
description: 20 pages, 11 figures
Photonic Computing to Accelerate Data Processing in Wireless Communications
Creators: name: Salmani, Mahsa
name: Eshaghi, Armaghan
name: Luan, Enxiao
name: Saha, Sreenil
Publisher: name: arXiv
Year: 2021
Subjects: subject: Emerging Technologies (cs.ET)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Massive multiple-input multiple-output (MIMO) systems are considered as one of the leading technologies employed in the next generations of wireless communication networks (5G), which promise to provide higher spectral efficiency, lower latency, and more reliability. Due to the massive number of devices served by the base stations (BS) equipped with large antenna arrays, massive-MIMO systems need to perform high-dimensional signal processing in a considerably short amount of time. The computational complexity of such data processing, while satisfying the energy and latency requirements, is beyond the capabilities of the conventional widely-used digital electronics-based computing, i.e., Field-Programmable Gate Arrays (FPGAs) and Application-Specific Integrated Circuits (ASICs). In this paper, the speed and lossless propagation of light is exploited to introduce a photonic computing approach that addresses the high computational complexity required by massive-MIMO systems. The proposed computing approach is based on photonic implementation of multiply and accumulate (MAC) operation achieved by broadcast-and-weight (B&W) architecture. The B&W protocol is limited to real and positive values to perform MAC operations. In this work, preprocessing steps are developed to enable the proposed photonic computing architecture to accept any arbitrary values as the input. This is a requirement for wireless communication systems that typically deal with complex values. Numerical analysis shows that the performance of the wireless communication system is not degraded by the proposed photonic computing architecture, while it provides significant improvements in time and energy efficiency for massive-MIMO systems as compared to the most powerful Graphics Processing Units (GPUs).
Central Wastewater Collection and Treatment Feasibility Guide for Local Decision Makers in the Rural Ozarks
Creators: name: Nelson, Marlys Knutson
name: Fessehaye, Michael
name: Nelson, Marlys Knutson
name: Fessehaye, Michael
Publisher: name: Unknown
Year: 1981
Subjects: subject: Community/Rural/Urban Development
subject: Public Economics
subject: Research Methods/ Statistical Methods
subject: Cost estimates
subject: wastewater
subject: Ozarks region

description: Local decisionmakers will find this budget analysis useful in evaluating the need for small community wastewater collection, conveyance, and treatment facilities. Capital and operating costs are projected for a hypothetical community of about 2,000 people (breakeven rates for this community for residential hookups equaled $9.24 per month). Supporting data for the local budgeting and decision process were gathered from recently built facilities in the Ozarks and non-Ozarks regions of Oklahoma and Missouri. Blank forms to help estimate demand, capital costs, and annual profit or loss are presented. Federal and State funding and regulations are discussed.
MOST photometry of the RRd Lyrae variable AQ Leo: Two radial modes, 32 combination frequencies, and beyond
Creators: name: Gruberbauer, Michael
name: Kohlenberg, Katrien
name: Rowe, Jason F.
name: Huber, Daniel
name: Matthews, Jaymie M.
name: Reegen, Piet
name: Kuschnig, Rainer
name: Cameron, Chris
name: Kallinger, Thomas
name: Weiss, Werner W.
name: Guenther, David B.
name: Moffat, Anthony F. J.
name: Rucinski, Slavek
name: Sasselov, Dimitar
name: Walker, Gordon A. H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Highly precise and nearly uninterrupted optical photometry of the RR Lyrae star AQ Leo was obtained with the MOST (Microvariability & Oscillations of STars) satellite over 34.4 days in February-March 2005. AQ Leo was the first known double-mode RR Lyrae pulsator (RRd star). Three decades after its discovery, MOST observations have revealed that AQ Leo oscillates with at least 42 frequencies, of which 32 are linear combinations (up to the sixth order) of the radial fundamental mode and its first overtone. Evidence for period changes of these modes is found in the data. The other intrinsic frequencies may represent an additional nonradial pulsation mode and its harmonics (plus linear combinations) which warrant theoretical modeling. The unprecedented number of frequencies detected with amplitudes down to millimag precision also presents an opportunity to test nonlinear theories of mode growth and saturation in RR Lyrae pulsators.
description: accepted for publication in MNRAS; revision v2 : broken references have been fixed
Αξιολόγηση προγραμμάτων ανοικτής εκπαίδευσης και προτάσεις για το σχεδιασμό τους
Creators: name: Βαβούρας, Θεόδωρος
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Εξ αποστάσεως εκπαίδευση
Συστήματα διαχείρισης μαθημάτων
Μαζικά ανοικτά διαδικτυακά μαθήματα
Κίνητρα και εμπόδια στην εκπαίδευση
Distance education
Massive open online courses
Learning management systems
Motivation and barriers to learning

description: Τα προγράμματα ανοικτής μάθησης μέσω διαδικτύου τα τελευταία χρόνια έχουν μία εκρηκτική ανάπτυξη. Η αρχή έγινε με τους Ανοικτούς Εκπαιδευτικούς Πόρους (OER) και πλέον τα Μαζικά Ανοικτά Διαδικτυακά Μαθήματα (MOOC) απαριθμούν χιλιάδες τίτλους μαθημάτων και εκατομμύρια μαθητές σε όλο τον κόσμο. Στην παρούσα εργασία γίνεται αξιολόγηση των προγραμμάτων MOOC, η αξιολόγηση αφορά δύο βασικούς γνωστικούς παράγοντες, ως προς τα κίνητρα και τα εμπόδια σε όλη τη διαδικασία της εμπλοκής των μαθητευομένων. Η αξιολόγηση γίνεται σε βάθος των δύο γνωστικών παραγόντων και με βάση συγκεκριμένα κριτήρια. Η ανάλυση των ευρημάτων ανέδειξε τα πιο σημαντικά κίνητρα και εμπόδια των μαθητευομένων. Η μαθηματική και στατιστική επεξεργασία των δεδομένων έδωσε τον Τελικό Δείκτη Πρόθεσης που συσχετίζεται με την πρόθεση του μαθητή να ολοκληρώσει ή όχι τα μαθήματα. Τέλος, προτείνονται δομικές αλλαγές στη σχεδίαση των προγραμμάτων ανοικτής μάθησης ώστε να μεγιστοποιείται η εμπλοκή με τα μαθήματα σε όλη τη διαδικασία της μάθησης.
description: Internet-based open distance learning programs in recent years have been booming. The beginning was with the Open Educational Resources (OER), and now Massive Open Online Courses (MOOC) enumerates thousands of course titles and millions of students all over the world. In this thesis, MOOC programs are evaluated in two key cognitive areas, as to the motives and barriers in the process of apprentice engagement. The assessment is made in depth of the two cognitive domains and based on specific criteria. Analysis of the findings has highlighted the most important motives and barriers of learners. Mathematical and statistical data processing gave us the Final Intent Index which is associated with the learner's intent to complete or not the courses. Finally, structural changes are proposed in the design of open learning programs to maximize engagement with the courses throughout the process of learning.
Η ιστοεξερεύνηση ως παιδαγωγικό εργαλείο στη διδασκαλία/εκμάθηση της γαλλικής ως ξένης γλώσσας για την ανάπτυξη γλωσσικών επικοινωνιακών και ψηφιακών δεξιοτήτων
Creators: name: Δρεπανίδου, Ελένη Ανδρέα
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Ιστοεξερεύνηση
Ψηφιακοί γραμματισμοί
Γλωσσικές επικοινωνιακές δεξιότητες
Διδασκαλία/εκμάθηση Γαλλικής γλώσσας
WebQuest
Digital literacies
Language communication skills
Teaching/learning French

description: Η έλευση και η ευρεία χρήση του παγκόσμιου ιστού, η ανάπτυξη των Τεχνολογιών πληροφορίας και επικοινωνίας (ΤΠΕ), έχει επηρεάσει όλους τους τομείς της ανθρώπινης δραστηριότητας, ένας από τους οποίους είναι η εκπαίδευση. Ο ρόλος των ΤΠΕ ιδιαίτερα στην ξενόγλωσση εκπαίδευση είναι σημαντικός. Η αναγκαιότητα καλλιέργειας των ψηφιακών γραμματισμών και η ζωτική σημασία τους για την υποστήριξη της εκπαιδευτικής διαδικασίας υπογραμμίζεται επίσης από τους εκπαιδευτικούς. Υποστηρίζεται ότι, στην εποχή των εφαρμογών ιστού και εφαρμογών κινητών συσκευών, είναι απαραίτητο οι μαθητές να διδάσκονται πολύ περισσότερα από την έντυπη γλώσσα και να εισαχθούν σε πολύ περισσότερες δεξιότητες αλφαβητισμού από αυτές που απαιτούνται για ένα έντυπο κείμενο. Η ανάπτυξη νέων ψηφιακών γραμματισμών θα είναι απαραίτητος πόρος για αυτούς ώστε να λειτουργήσουν στις σύγχρονες κοινωνίες. Αυτοί οι ψηφιακοί γραμματισμοί θεωρούνται συχνά ως μέρος, ή τουλάχιστον συνδέονται, με αυτά που αναφέρονται στην εκπαιδευτική κοινότητα ως δεξιότητες του 21ου αιώνα. Στο πλαίσιο αυτό, αναπτύξαμε παιδαγωγικές προτάσεις, οι οποίες περιλαμβάνουν δραστηριότητες ιστοεξερεύνησης, για διδασκαλία/εκμάθηση γαλλικών ως ξένης γλώσσας, με στόχο την ανάπτυξη γλωσσικών επικοινωνιακών και ψηφιακών δεξιοτήτων.
description: The advent and widespread use of the world wide web, the development of information and communication technologies (ICT), has affected all areas of human activity, one of which is education. The role of ICT especially in foreign language education is important. The necessity of cultivating digital literacies and their vital importance in supporting the educational process is also underlined by educators. It is claimed that, in the age of the web and mobile applications, it is necessary for students to be taught much more than printed language and to be introduced to much more than literacy skills in a printed text. The development of new digital literacies will be a necessary resource for them to function in modern societies. These digital literacies are often seen as part of, or at least linked to, what are often referred to in the education community as 21st century skills. In this context, we developed pedagogical proposals, which includes WebQuests activities for teaching/learning French as a foreign language with the aim of developing language communication and digital skills.