cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Anomaly Mediation and Radius Stabilization by a Boundary Constant Superpotential in a Warped Space
Creators: name: Maru, Nobuhito
name: Sakai, Norisuke
name: Uekusa, Nobuhiro
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a very simple model of the radius stabilization in a supersymmetric (SUSY) Randall-Sundrum model with a hypermultiplet and a boundary constant superpotential. A wide range of parameters where the anomaly mediation of SUSY breaking is dominated is found although there are many problematic bulk effects of SUSY breaking. A negative cosmological constant in the radius stabilized vacuum can be cancelled by a localized SUSY breaking. Making use of this localized SUSY breaking also solves the μ-problem by Giudice-Masiero mechanism.
description: 3 pages, 1 figures, To appear in the proceedings of 16th International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY08), Seoul, Korea, June 16-21 2008
Supermassive black holes from OASIS and SAURON integral-field kinematics
Creators: name: Cappellari, M.
name: Bacon, R.
name: Davies, R. L.
name: de Zeeuw, P. T.
name: Emsellem, E.
name: Falcon-Barroso, J.
name: Krajnovic, D.
name: Kuntschner, H.
name: McDermid, R. M.
name: Peletier, R. F.
name: Sarzi, M.
name: Bosch, R. C. E. van den
name: van de Ven, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Supermassive black holes are a key element in our understanding of how galaxies form. Most of the progress in this very active field of research is based on just ~30 determinations of black hole mass, accumulated over the past decade. We illustrate how integral-field spectroscopy, and in particular our OASIS modeling effort, can help improve the current situation.
description: 4 pages, 2 figures, LaTeX. To appear in the proceedings of IAU Symposium 245 "Formation and Evolution of Galaxy Bulges", M. Bureau, E. Athanassoula, and B. Barbuy, eds
Classification, Use, and Function of Hanging Nodules in the Neopalatial Administrative Practices (Minoan Crete)
Creators: name: Montecchi, Barbara
Publisher: name: Deutsches Archäologisches Institut
Year: 2018
Subjects: subject: Crete and the Cyclades
subject: Neopalatial Period
subject: administrative practices
subject: seals and sealings

description: Archäologischer Anzeiger, 1. Halbband 2017
description: Clay sealings are administrative devices well attested in the Aegean during the entire Bronze Age. Their shapes, characteristics and function change through time and, at least until the last phase of the Late Bronze Age, are in part still poorly defined. As for the Neopalatial period, almost all the available material dates to LM I (approximately 1580–1450 B.C. on the traditional low chronology, or 1700–1460 B.C. on the high chronology) and is grouped in four main types, conventionally called noduli, roundels, flat-based nodules and hanging nodules. The aim of the present paper is to discuss the case of the hanging nodules, which are in turn divided into ›single-hole‹ and ›two-hole‹ by E. Hallager, but which the CMS terms ›Schnurendplomben‹ (string-end nodules) and ›Schnurplomben‹ (string nodules). Since the evidence at our disposal is inconsistent, its interpretation largely depends on the way in which the data have been collected. My goal here is to suggest some adjustments in the classification methodology (since having the right data is usually better than having more data), and possible relationships among different types of documents according to the archaeological contexts (because data have no value or meaning in isolation, but only exist within a knowledge infrastructure).
Theoretical interpretation of the observed neutrino emission from Tidal Disruption Events
Creators: name: Winter, Walter
name: Lunardini, Cecilia
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The observation of a neutrino at IceCube in association with the Tidal Disruption Event (TDE) AT2019dsg has suggested TDEs as a new class of sources of astrophysical neutrinos. We present a model of this multi-messenger observation in a jetted concordance scenario, where the neutrino production is directly linked to the observed X-rays, and the timing of the neutrino observation (about 150 days post peak) can be naturally described. We briefly discuss the implications of our model for future neutrino-TDE associations.
description: LaTeX, 8 pages, 3 figures. Presented at the 37th International Cosmic Ray Conference (ICRC 2021)
Evolutionary Model of Species Body Mass Diversification
Creators: name: Clauset, Aaron
name: Redner, Sidney
Publisher: name: arXiv
Year: 2008
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Biological Physics (physics.bio-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We present a quantitative model for the biological evolution of species body masses within large groups of related species, e.g., terrestrial mammals, in which body mass M evolves according to branching (speciation), multiplicative diffusion, and an extinction probability that increases logarithmically with mass. We describe this evolution in terms of a convection-diffusion-reaction equation for ln M. The steady-state behavior is in good agreement with empirical data on recent terrestrial mammals, and the time-dependent behavior also agrees with data on extinct mammal species between 95 - 50 Myr ago.
description: 4 pages, 4 figures
Perspectives on oligopoly theory
Creators: name: MacLeod, William Bentley
Publisher: name: University of British Columbia
Year: 2010

description: This thesis is a collection of four essays studying the oligopoly problem from various perspectives. In Chapter 1 it is demonstrated that though demand curves are generally continuous in differentiated product models, the non-existence of a Nash equilibria is a generic property. Chapter 2 shows that the use of the classical Cournot-Nash equilibrium in quantities is often equivalent to the use of the core solution concept. Chapter 3 applies the theory of local games to the oligopoly problem to show the relationship between the local stability of equilibria and adjustment costs. Necessary and sufficient conditions for stability are provided which will often yield a unique locally stable equilibrium. Finally Chapter 4 studies the rationality of both conscious parallelism and predatory pricing in a dynamic model with free entry. An axiomatic foundation for conscious parallelism is provided which is then used to show that predatory pricing, widely defined, is always rational in the face of potential entry. By rational we mean subgame perfect Nash equilibria in the sense of Selten [1975].
3D Reconstruction of Bias Effects on Porosity, Alignment and Mesoscale Structure in Electrospun Tubular Polycaprolactone
Creators: name: Liu, Y.
name: Chaparro, F. J.
name: Gray, Z.
name: Gaumer, J.
name: Cybyk, D. B.
name: Ross, L.
name: Gosser, P.
name: Tian, Z.
name: Jia, Y.
name: Dull, T.
name: Yarin, A. L.
name: Lannutti, J. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Porosity variations in tubular scaffolds are critical to reproducible, sophisticated applications of electrospun fibers in biomedicine. Established laser micrometry techniques produced ~14,000 datapoints enabling thickness and porosity plots versus both the azimuthal (Phi) and axial (Z) directions following cylindrical mandrel deposition. These 3D datasets could then be "unrolled" into "maps" revealing variations in thickness and porosity versus 0, -5, and -15 kV collector bias. As bias increases, thinner, more "focused" depositions occur. Simultaneous decreases in net porosity versus bias (91.1% 0kV > 83.4% -5kV > 80.2% -15 kV) are sensible, but significant changes in the distribution were unexpected. Surprisingly, at 0 kV, extensive mesoscale surface roughness is evident. Optical profilometry revealed unique features ~1600-420 mum in size, standing ~210 mum above the surrounding surface. These shrink to only ~440-150 mum in size and ~30 mum higher at -5 kV bias and disappear entirely at -15 kV. Scanning electron microscopy (SEM) resolved these into novel, localized "domains" containing tightly aligned fibers oriented parallel to the mandrel axis. Unexpectedly, we also observed substantial orientation along the mandrel axis. By modifying classical bending instability models to incorporate cylindrical electric fields, simulation revealed that horizontal components in the modified electric field alter bending loop shape, causing the observed alignment. This provides a new, easily utilized tool enabling facile, efficient tuning of orientation.
description: Submitted to Polymer, after minor revision
The Byzantine Settlement History of Miletus and Its Hinterland – Quantitative Aspects. Stratigraphy, Pottery, Anthropology, Coins, and Palynology
Creators: name: Niewöhner, Philipp
Publisher: name: Deutsches Archäologisches Institut
Year: 2018
Subjects: subject: Beylik of Menteşe
subject: environmental history
subject: Invasion Period
subject: late antiquity
subject: ruralization

description: Archäologischer Anzeiger, 2. Halbband 2016
description: The Byzantine settlement history of Miletus, an ancient harbour city on the west coast of Asia Minor, was long obscured by a lack of quantitative data. This paper provides such data and fills in some crucial gaps in our knowledge of the urban development and in our understanding of the rural hinterland. The city appears to have lost much of its former population by the 6th century A.D., which was a particularly prosperous time for the surrounding villages. Thereafter, agriculture continued relatively undisturbed throughout the Persian and Arab invasions, the middle Byzantine period – with considerable prosperity at rural sites – and the Turkish conquest. The city, in contrast, was deserted during the middle Byzantine period. Middle Byzantine prosperity turns out to have been a rural phenomenon of the agricultural hinterland, and urbanism was dead long before the arrival of the Turks, who had to rebuild Miletus under the new name of Balat.
A geometric construction of the exceptional Lie algebras F4 and E8
Creators: name: Figueroa-O'Farrill, José
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We present a geometric construction of the exceptional Lie algebras F4 and E8 starting from the round 8- and 15-spheres, respectively, inspired by the construction of the Killing superalgebra of a supersymmetric supergravity background. (There is no supergravity in the paper.)
description: 12 pages
The Turing Way: A how to guide for reproducible research
Creators: name: Whitaker, Kirstie
Publisher: name: Zenodo
Year: 2019

description: Kirstie's talk at Future-proofing your research: Moving Towards Open & Reproducible Research at Lancaster University on 4 June 2019.

Event URL: https://www.eventbrite.co.uk/e/future-proofing-your-research-moving-towards-open-reproducible-research-tickets-60575376582
description: This work was supported by The UKRI Strategic Priorities Fund under the EPSRC Grant EP/T001569/1, particularly the "Tools, Practices and Systems" theme within that grant, and by The Alan Turing Institute under the EPSRC grant EP/N510129/1.
From Algebraic Geometry to Machine Learning
Creators: name: Douglas, Michael R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: History and Overview (math.HO)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: David Mumford made groundbreaking contributions in many fields, including the pure mathematics of algebraic geometry and the applied mathematics of machine learning and artificial intelligence. His work in both fields influenced my career at several key moments.
Characterization of jacobian Newton polygons of plane branches and new criteria of irreducibility
Creators: name: Barroso, Evelia R. García
name: Gwoździewicz, Janusz
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 32S55, 14H20

description: In this paper we characterize, in two different ways, the Newton polygons which are jacobian Newton polygons of a branch. These characterizations give in particular combinatorial criteria of irreducibility for complex series in two variables and necessary conditions which a complex curve has to satisfy in order to be the discriminant of a complex plane branch.
Electromagnetic cloaking in the visible frequency range
Creators: name: Smolyaninov, I. I.
name: Hung, Y. J.
name: Davis, C. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Electromagnetic metamaterials provide unprecedented freedom and flexibility to introduce new devices, which control electromagnetic wave propagation in very unusual ways. Very recently theoretical design of an "invisibility cloak" has been suggested, which has been realized at microwave frequencies in a two-dimensional cylindrical geometry. In this communication we report on the experimental realization of the dielectric permittivity distribution required for non-magnetic cloaking in the visible frequency range.
description: 3 pages, 1 figure
The Movable Stage in Hellenistic Greek Theatres. New Documentation from Messene and Comparisons with Sparta and Megalopolis
Creators: name: Yoshitake, Ryūichi
Publisher: name: Deutsches Archäologisches Institut
Year: 2018
Subjects: subject: Messene
subject: theatre
subject: skanotheke
subject: movable stage
subject: reconstruction

description: Archäologischer Anzeiger, 2. Halbband 2016
description: The present paper reports new survey results on the scenery storage room and stone lines in the Messene theatre and proposes a new reconstruction of the wheeled wooden stage construction as compared with other related examples from Sparta and Megalopolis. It is proposed that the wooden proskenion and skene were prepared to run on a track set on grooves 2 m wide in the Messene and Sparta theatres. The condition of the stone lines suggests that a wooden skene was used both at Messene and Sparta. The grooved stone lines under the later proskenion wall of the Megalopolis theatre might have been used for wooden scene panels.
The Visual Orbit of the 1.1-day Spectroscopic Binary σ^2 Coronae Borealis from Interferometry at the CHARA Array
Creators: name: Raghavan, Deepak
name: McAlister, Harold A.
name: Torres, Guillermo
name: Latham, David W.
name: Mason, Brian D.
name: Boyajian, Tabetha S.
name: Baines, Ellyn K.
name: Williams, Stephen J.
name: Brummelaar, Theo A. ten
name: Farrington, Chris D.
name: Ridgway, Stephen T.
name: Sturmann, Laszlo
name: Sturmann, Judit
name: Turner, Nils H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an updated spectroscopic orbit and a new visual orbit for the double-lined spectroscopic binary σ^2 Coronae Borealis based on radial velocity measurements at the Oak Ridge Observatory in Harvard, Massachusetts and interferometric visibility measurements at the CHARA Array on Mount Wilson. σ^2 CrB is composed of two Sun-like stars of roughly equal mass in a circularized orbit with a period of 1.14 days. The long baselines of the CHARA Array have allowed us to resolve the visual orbit for this pair, the shortest period binary yet resolved interferometrically, enabling us to determine component masses of 1.137 \pm 0.037 M_sun and 1.090 \pm 0.036 M_sun. We have also estimated absolute V-band magnitudes of MV (primary) = 4.35 \pm 0.02 and MV(secondary) = 4.74 \pm 0.02. A comparison with stellar evolution models indicates a relatively young age of 1-3 Gyr, consistent with the high Li abundance measured previously. This pair is the central component of a quintuple system, along with another similar-mass star, σ^1 CrB, in a ~ 730-year visual orbit, and a distant M-dwarf binary, σCrB C, at a projected separation of ~ 10 arcmin. We also present differential proper motion evidence to show that components C & D (ADS 9979C & D) listed for this system in the Washington Double Star Catalog are optical alignments that are not gravitationally bound to the σCrB system.
description: 40 pages, 14 figures. Accepted by ApJ
A dark matter WIMP that can be detected and definitively identified with currently planned experiments
Creators: name: LaFontaine, Caden
name: Tallman, Bailey
name: Ellis, Spencer
name: Croteau, Trevor
name: Torres, Brandon
name: Hernandez, Sabrina
name: Guerrero, Diego Cristancho
name: Jaksik, Jessica
name: Lubanski, Drue
name: Allen, Roland E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A recently proposed dark matter WIMP has only second-order couplings to gauge bosons and itself. As a result, it has small annihilation, scattering, and creation cross-sections, and is consequently consistent with all current experiments and the observed abundance of dark matter. These cross-sections are, however, still sufficiently large to enable detection in experiments that are planned for the near future, and definitive identification in experiments proposed on a longer time scale. The (multi-channel) cross-section for annihilation is consistent with thermal production and freeze-out in the early universe, and with current evidence for dark matter annihilation in analyses of the observations of gamma rays by Fermi-LAT and antiprotons by AMS-02, as well as the constraints from Planck and Fermi-LAT. The cross-section for direct detection via collision with xenon nuclei is estimated to be slightly below $10^{-47}$ cm$^2$, which should be attainable by LZ and Xenon nT and well within the reach of Darwin. The cross-section for collider detection via vector boson fusion is estimated to be $\sim 1$ fb, and may be ultimately attainable by the high-luminosity LHC; definitive collider identification will probably require the more powerful facilities now being proposed.
description: 6 pages, published in Universe, https://www.mdpi.com/2218-1997/7/8/270
A new look at the problem of gauge invariance in quantum field theory
Creators: name: Solomon, Dan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum field theory is assumed to be gauge invariant. However it is well known that when certain quantities are calculated using perturbation theory the results are not gauge invariant. The non-gauge invariant terms have to be removed in order to obtain a physically correct result. In this paper we will examine this problem and determine why a theory that is supposed to be gauge invariant produces non-gauge invariant results.
description: Accepted by Physica Scripta. 27 pages
title: Rezension: M. Jung-Diestelmeier, „Das verkehrte England“. Visuelle Stereotype auf Postkarten und deutsche Selbstbilder 1899-1918
Creators: name: Onken, Hinnerk
Publisher: name: ZZF - Centre for Contemporary History: Visual History
Year: 2019

description: Die Arbeit von Maren Jung-Diestelmeier, mit der sie 2016 an der Technischen Universität Berlin promoviert wurde und die im Jahr darauf im Göttinger Wallstein Verlag erschien, ist, soweit der Rezensent das mit seiner zugegebenermaßen beschränkten Expertise auf dem Feld zu beurteilen vermag, ein großartiger Beitrag zur Stereotypenforschung. Das verwundert nicht angesichts dessen, dass die Dissertation von Werner Bergmann, bis 2016 Professor für Soziologie am Zentrum für Antisemitismusforschung, betreut wurde. Der Band macht sicher nicht zu Unrecht den Auftakt der vom ZfA herausgegebenen Reihe „Studien zu Ressentiments in Geschichte und Gegenwart“.
Approximate spacetime symmetries and conservation laws
Creators: name: Harte, Abraham I
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A notion of geometric symmetry is introduced that generalizes the classical concepts of Killing fields and other affine collineations. There is a sense in which flows under these new vector fields minimize deformations of the connection near a specified observer. Any exact affine collineations that may exist are special cases. The remaining vector fields can all be interpreted as analogs of Poincare and other well-known symmetries near timelike worldlines. Approximate conservation laws generated by these objects are discussed for both geodesics and extended matter distributions. One example is a generalized Komar integral that may be taken to define the linear and angular momenta of a spacetime volume as seen by a particular observer. This is evaluated explicitly for a gravitational plane wave spacetime.
description: 26 pages, 1 figure. Added an example and simplified presentation. Accepted by Classical and Quantum Gravity
Breaking the Barrier for High-Speed in the Interior Permanent Magnet Machine-Slides
Creators: Rukmi Dutta
Publisher: name: IEEE
Year: 2021

PELS Webinar Slides
Abstract: The permanent magnet machines are increasingly used in many emerging applications because of high efficiency and better dynamics, which is pushing the boundary and power of such machines. The applications such as more-electric aircraft and ships, flywheel energy storage, turbo-compressors in automotive applications, and numerous other direct-drive, high-speed industrial applications require simultaneously achieving both high-speed and high-power. Two performance indices rpm kW and tip speed – are often used to quantify the challenges of designing a rotating machine with high speed and power. The interior permanent magnet machine has the lowest rpm kW index indicating greater challenges for this type of machine when designed for high-speed applications. The talk will critically examine the barrier to achieve high-speed in the Interior-type PM machine and the methods to overcome them.
Functional roles of phospholipids in exocytosis
Creators: name: Nayar, Rajiv
Publisher: name: University of British Columbia
Year: 2010

description: Cell secretion by exocytosis involves fusion between secretory granules and the surrounding plasma membrane, which results in the extracellular release of the granule contents. This event is triggered by the influx of Ca²⁺ on stimulation, which is accompanied by an increased conversion of the lipid phosphatidylinositol (PI) to diacylglycerol, to phosphatide acid (PA) and then back to PI. This work is concerned with the roles of phospholipids in exocytosis, both with regard to the Ca²⁺-stimulated fusion event itself and the roles of PI and intermediates in the PI cycle. Three topics are considered in detail, namely the physical properties of PI in pure and mixed lipid systems, the possible ability of PA to act as a Ca²⁺ ionophore and the influence of the plasma membrane inner monolayer lipid composition on the fusion event vital to the completion of exocytosis. It is shown by, employing ³¹P-NMR and freeze-fracture techniques, that PI adopts the bilayer organization in isolation and is particularly effective for stabilizing this organization when mixed with "non-bilayer" lipids both in the absence and presence of Ca²⁺. Alternatively, PA in large unilamellar vesicles exhibits properties consistent with Ca²⁺ ionophore capabilities. Finally, vesicles composed of phosphatidylethanolamine and phosphatidylserine (which possibly mimics the plasma membrane inner monolayer composition) can act as adjuncts to Ca²⁺-stimulated release of chromaffin granule contents. Theses results are consistent with the possibility that intermediates of the PI-response (e.g. PA) can enhance Ca²⁺ influx, and indicate that the plasma membrane inner monolayer lipid composition of the secretory cell may play a vital role in the secretory event.
The Marbles of the Roman Villa of Chiragan at Martres-Tolosane (Gallia Narbonensis)
Creators: name: Attanasio, Donato
name: Bruno, Matthias
name: Prochaska, Walter
Publisher: name: Deutsches Archäologisches Institut
Year: 2017
Subjects: subject: Chiragan
subject: Aphrodisian sculptors
subject: marble provenance
subject: isotopes
subject: trace analysis
subject: EPR

description: Archäologischer Anzeiger, 1. Halbband 2016
description: 100 marble artefacts originating from the Roman villa of Chiragan and now part of the collections of the Musée Saint-Raymond at Toulouse were analysed and include the Herakles reliefs, the mythological tondos, a series of small-scale ideal sculptures and the collection of private and imperial portraits present in the villa. The local marble of St Béat quarried on the Pyrenees was used for the Herakles reliefs, the tondos, and the coeval portraits of the owner of Chiragan and his family, all sculptures stylistically identified as works of Aphrodisian sculptors dated to the end of the 3rd century A.D. by Jean-Charles Balty or to the mid second half of the 4th century A.D. by Marianne Bergmann. Import marbles, mostly Asiatic from Göktepe and Iscehisar (Docimium), were used for nine small-scale artefacts probably imported as finished products. Quite unexpected is the pervasive use of the marble of Göktepe for portraits of the Roman imperial period that were mostly imported from Rome as finished products. 59 sculptures from Chiragan and 11 portraits discovered at Béziers in the 19th century were analysed (Göktepe 37, Paros 17, Docimium 5, St Béat 5, Carrara 6). Between the end of the 1st and the beginning of the 2nd century A.D. the marble of Göktepe rapidly replaced Parian lychnites as the sculptural marble of choice for high quality portraits. In late antiquity, marble use and workmanship at Chiragan were deeply affected by the wish to emulate urban models, but also met with the difficulty of importing foreign marbles to a region not easily reachable from the Mediterranean.
Fast Frequency Control by Wind Turbines (Slides)
Creators: Xiao-Ping Zhang
Publisher: name: IEEE
Year: 2021

With global power industry moving towards net-zero implementation, this would result in low inertia renewable energy dominated power grids. The power cut incident during the 9th August 2019 event in the UK due to the frequency nadir of 48.8 Hz, triggering the automatic LFDD indicated the fundamental challenges of such low inertia power grids.

The aim of this presentation is to show how fast frequency support scheme using blades of wind turbines as very big flywheels without extra investments can be implemented to deal with the challenges.
With global power industry moving towards net-zero implementation, this would result in low inertia renewable energy dominated power grids. The power cut incident during the 9th August 2019 event in the UK due to the frequency nadir of 48.8 Hz, triggering the automatic LFDD indicated the fundamental challenges of such low inertia power grids.

The aim of this presentation is to show how fast frequency support scheme using blades of wind turbines as very big flywheels without extra investments can be implemented to deal with the challenges.
EXPLORING ETHICAL LEADERSHIP INFLUENCE ON ORGANIZATIONAL EFFECTIVENESS WITHIN VIETNAMESE SMEs AND THE MEDIATING CONTRIBUTIONS OF KNOWLEDGE SHARING AND ORGANIZATIONAL LEARNING
Creators: name: VAN – HIEN NGUYEN
Publisher: name: Zenodo
Year: 2023
Subjects: Ethical Leadership; Organizational Effectiveness; Knowledge Sharing; Organizational Learning; SMEs.

description: Abstract

This research delves into the intricate dynamics of ethical leadership within the context of Vietnamese Small and Medium Enterprises (SMEs). By scrutinizing its impact on organizational effectiveness, the study unveils a comprehensive understanding of the interconnectedness between ethical leadership, knowledge sharing, and organizational learning. Employing a mixed-methods approach, the research investigates the mediating roles played by knowledge sharing and organizational learning in the relationship between ethical leadership and organizational effectiveness. Through empirical analysis and case studies, this study contributes valuable insights to the literature, offering practical implications for fostering ethical leadership practices in Vietnamese SMEs to enhance overall organizational effectiveness. The findings shed light on the nuanced mechanisms through which ethical leadership contributes to sustainable success, emphasizing the pivotal roles of knowledge sharing and organizational learning in this intricate relationship.
Coarse-graining stochastic biochemical networks: quasi-stationary approximation and fast simulations using a stochastic path integral technique
Creators: name: Sinitsyn, N. A.
name: Hengartner, Nicolas
name: Nemenman, Ilya
Publisher: name: arXiv
Year: 2008
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We propose a universal approach for analysis and fast simulations of stiff stochastic biochemical kinetics networks, which rests on elimination of fast chemical species without a loss of information about mesoscopic, non-Poissonian fluctuations of the slow ones. Our approach, which is similar to the Born-Oppenheimer approximation in quantum mechanics, follows from the stochastic path integral representation of the full counting statistics of reaction events (also known as the cumulant generating function). In applications with a small number of chemical reactions, this approach produces analytical expressions for moments of chemical fluxes between slow variables. This allows for a low-dimensional, interpretable representation of the biochemical system, that can be used for coarse-grained numerical simulation schemes with a small computational complexity and yet high accuracy. As an example, we consider a chain of biochemical reactions, derive its coarse-grained description, and show that the Gillespie simulations of the original stiff system, the coarse-grained simulations, and the full analytical treatment are in an agreement, but the coarse-grained simulations are three orders of magnitude faster than the Gillespie analogue.
description: 29 pages, 8 figures
Dynamics of the Distorted Diamond Chain
Creators: name: Mikeska, H. -J.
name: Luckmann, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present results on the dynamics of the distorted diamond chain, S=1/2 dimers alternating with single spins 1/2 and exchange couplings $J_1$ and $J_3$ in between. The dynamics in the spin fluid (SF) and tetramer-dimer (TD) phases is investigated numerically by exact diagonalisation for up to 24 spins. Representative excitation spectra are presented, both for zero magnetic field and in the 1/3 plateau phase and the relevant parameters are determined across the phase diagram. The behavior across the SF-TD phase transition line is discussed for the specific heat and for excitation spectra. The relevance of the distorted diamond chain model for the material Cu$_3$(CO$_3$)$_2$(OH)$_2$ (azurite) is discussed with particular emphasis on inelastic neutron scattering experiments, a recent suggestion of one possibly ferromagnetic coupling constant is not confirmed.
description: 24 pages, 8 figures
An Ancient Cave Sanctuary underneath the Theatre of Miletus, Beauty, Mutilation, and Burial of Ancient Sculpture in Late Antiquity, and the History of the Seaward Defences
Creators: name: Niewöhner, Philipp
Publisher: name: Deutsches Archäologisches Institut
Year: 2017
Subjects: subject: sacred spring
subject: stage building
subject: street grid
subject: terracottas
subject: zwinger

description: Archäologischer Anzeiger, 1. Halbband 2016
description: A cave underneath the theatre of Miletus in western Turkey contains a spring and can be identified as an ancient sanctuary. It underwent two main building phases, both of which appear to be linked to building phases of the theatre, one Hellenistic and the other Roman. The cave contained terracotta figures and limbs that might have been votive offerings. 44 late antique oil lamps may also have been votives; they were buried inside the spring when the spring was filled in at the turn of the fifth century A.D. or soon thereafter. The infill also contained marble heads from the stage building of the theatre that had previously been mutilated, probably by Christians and possibly in order to mar their beauty. The infill hid the spring as well as burying the lamps and marbles. This appears to have had the twofold function of closing the sanctuary – probably in response to the anti-pagan laws of the Theodosian emperors – and of protecting the sacred spring, the votive offerings, as well as the marble heads from further abuse and destruction. In addition, findings from around the cave also shed light on the history of the seaward defences that may date back to Archaic times and, in the Byzantine period, were renovated to include a sophisticated gate with zwinger.
Planar defect in approximant: the case of Cu-Al-Sc alloy
Creators: name: Ishimasa, Tsutomu
name: So, Yeong-Gi
name: Mihalkovič, Marek
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The {110} planar defect formed in the Cu-Al-Sc 1/1 approximant has been studied by means of electron microscopy and 6-dimensional analysis. As the displacement vector of the planar defect, 1/2 has been proposed. Here τ denotes the golden ratio. This vector corresponds to a 6-dimensional translation of type [111000] and also to the c-linkage of Tsai-type clusters. An atomic structure model of the planar defect has been constructed referring to the structural properties of the regular 1/1 approximant; namely truncated triacontahedron framework and embedded clusters. This structural model was validated by the agreement between the observed and simulated HAADF-STEM images. Models of the intersection of two planar defects and the triple point, where three planar defects intersect, were also proposed. All local structures formed at these defects are understood by the concept of so-called canonical cell tiling.
description: 31 pages including 4 tables and 14 figures
Slides for: Modeling Emerging Urban Mobility Services
Creators: Constantinos Antoniou
Publisher: name: IEEE
Year: 2021

Slides for Webinar: Modeling Emerging Urban Mobility Services
Emerging mobility services are abruptly introduced in cities throughout the world, often with no prior planning, with poor understanding and no or little evaluation. A number of open questions thus remain. While larger cities may have the resources and in-house expertise to develop suitable models, for the majority of small and medium cities, the option to move away from the traditional strategic four-step modeling approach is not necessarily an immediate option. Therefore, there is a need for an intermediate modelling approach, which can be integrated into the existing models. In this webinar, such an intermediate modeling approach is presented. Participants will (i) learn how such a modeling approach can be developed and (ii) experience a number of practical case studies demonstrating components of this approach. As a result, insights from the overall approach and the individual components will be obtained.
Vacuum Energy as Spectral Geometry
Creators: name: Fulling, Stephen A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 34B27; 81Q10; 58J50

description: Quantum vacuum energy (Casimir energy) is reviewed for a mathematical audience as a topic in spectral theory. Then some one-dimensional systems are solved exactly, in terms of closed classical paths and periodic orbits. The relations among local spectral densities, energy densities, global eigenvalue densities, and total energies are demonstrated. This material provides background and motivation for the treatment of higher-dimensional systems (self-adjoint second-order partial differential operators) by semiclassical approximation and other methods.
description: This is a contribution to the Proceedings of the 2007 Midwest Geometry Conference in honor of Thomas P. Branson, published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Copertina e Frontespizio (Vol. 11, n. 17/2019)
Creators: name: Redazione, La
Publisher: name: Università degli Studi di ferrara
Year: 2019

description: ---
description: Annali online della Didattica e della Formazione Docente, Vol 11, N° 17 (2019): "ognuno resti com'è, diverso dagli altri". Plurilinguismo, multilinguismo, multiculturalismo
Superoperator nonequilibrium Green's function theory of many-body systems; Applications to charge transfer and transport in open junctions
Creators: name: Harbola, U.
name: Mukamel, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Nonequilibrium Green's functions provide a powerful tool for computing the dynamical response and particle exchange statistics of coupled quantum systems. We formulate the theory in terms of the density matrix in Liouville space and introduce superoperator algebra that greatly simplifies the derivation and the physical interpretation of all quantities. Expressions for various observables are derived directly in real time in terms of superoperator nonequilibrium Green's functions (SNGF), rather than the artificial time-loop required in Schwinger's Hilbert-space formulation. Applications for computing interaction energies, charge densities, average currents, current induced fluorescence, electroluminescence and current fluctuation (electron counting) statistics are discussed.
description: 36 pages, 3 figures. to be published in Physics Reports
Modeling Power Electronics for Electric Powertrain Applications-Slides
Creators: Sabin Carpiuc
Publisher: name: IEEE
Year: 2021

TEC Webinar Slides
Abstract:  The need to minimize the environmental impact of the transportation sector has fueled the electrification trend. A key factor that enables electrification is the development of power electronics and embedded systems. However, with progress comes challenges that need to be addressed by the research and development community in a very short timeframe. These challenges include optimizing the performance indices such as power density, costs, losses, and failure rate. Understanding the system and translating it into mathematical models with different levels of fidelity that suits a particular problem is critical. This will speed up the development cycle. Moreover, a good model can be easily reused in follow-up projects.

The goal of this presentation is to show how the modeling of power electronics components with a variety of different levels of fidelity can help solve these challenges. The talk will cover case studies going from simple system-level models that run fast in simulation and are suitable for real-time evaluation to detailed models used for device analysis.
A Complete Scheme for a Muon Collider
Creators: name: Palmer, Robert B.
name: Berg, J. Scott
name: Fernow, Richard C.
name: Gallardo, Juan Carlos
name: Kirk, Harold G.
name: Alexahin, ; Yuri
name: Neuffer, David
name: Kahn, ; Stephen Alan
name: Summers, ; Don J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: A complete scheme for production, cooling, acceleration, and ring for a 1.5 TeV center of mass muon collider is presented, together with parameters for two higher energy machines. The schemes starts with the front end of a proposed neutrino factory that yields bunch trains of both muon signs. Six dimensional cooling in long-period helical lattices reduces the longitudinal emittance until it becomes possible to merge the trains into single bunches, one of each sign. Further cooling in all dimensions is applied to the single bunches in further helical lattices. Final transverse cooling to the required parameters is achieved in 50 T solenoids.
description: 5 pages, 9 figures (EPS); submitted to Proceedings of COOL 07 Workshop
Indice
Creators: name: Redazione, La
Publisher: name: Università degli Studi di ferrara
Year: 2019

description: ---
description: Annali online della Didattica e della Formazione Docente, Vol 11, N° 17 (2019): "ognuno resti com'è, diverso dagli altri". Plurilinguismo, multilinguismo, multiculturalismo
Reply to "the Comment on `Gauge Invariance and kT-Factorization of Exclusive Processes'"
Creators: name: Feng, F.
name: Ma, J. P.
name: Wang, Q.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A new method is proposed to calculate wave functions in $k_T$-factorization in \cite{LiMi} as a comment about our paper \cite{FMW}. We point out that the results obtained with the method are in conflict with the translation invariance and depend on the chosen contours for loop-integrals. Therefore, the method is in principle unacceptable and the results with the method cannot be correct.
description: Add one equation and discussion, version to appear in Phys. Lett. B
Pre-burst neutrinos of gamma-ray bursters accompanied by high-energy photons
Creators: name: Zhu, Jie
name: Ma, Bo-Qiang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Previous researches on high-energy neutrino events from gamma-ray bursters (GRBs) suggest a neutrino speed variation $v(E)=c(1\pm E/E^ν_{\mathrm{LV}})$ with ${E}^ν_{\rm LV}=(6.4\pm 1.5)\times10^{17}~{ \rm GeV}$, together with an intrinsic time difference ${Δ{t}_{\rm in}=(-2.8\pm 0.7)\times10^2~{\rm s}}$, which means that high-energy neutrinos come out about 300~s earlier than low-energy photons in the source reference system. Considering the possibility that pre-bursts of neutrinos may be accompanied by high-energy photons, in this work we search for high-energy photon events with earlier emission time from 100 to 1000~s before low-energy photons at source by analyzing Fermi Gamma-ray Space Telescope (FGST) data. We perform the searching of photon events with energies larger than 100~MeV, and find 14 events from 48 GRBs with known redshifts. Combining these events with a $1.07~\rm{TeV}$ photon event observed by the Major Atmospheric Gamma Imaging Cherenkov telescopes (MAGIC), we suggest a pre-burst stage with a long duration period of several minutes of high energy neutrino emissions accompanied by high energy photons at the GRB source.
description: 7 latex pages, 1 figure, final version for publication
Reconsidering the Hera-Pottery from the Samian Heraion and Its Distribution
Creators: name: Avramidou, Amalia
Publisher: name: Deutsches Archäologisches Institut
Year: 2017
Subjects: subject: Samian Heraion
subject: Hera-pottery
subject: ritual dining
subject: workers
subject: Naukratis

description: Archäologischer Anzeiger, 1. Halbband 2016
description: An examination of the vases inscribed with Hera’s name from four different sanctuaries of the goddess (Samos, Naukratis, Perachora, and Gravisca) demonstrates that only two Heraia, the ones of Samos and Naukratis, have actually yielded the characteristic pottery with red dipinti marking it as Hera’s property (hence Hera-vases). The production of this local ware is examined here with reference to major construction phases of the Samian sanctuary and an attempt is made to interpret it as the main service-ware of workers rather than as equipment for ritual dining.
A study of image recovery techniques for radio long baseline interferometry
Creators: name: Steer, David G.
Publisher: name: University of British Columbia
Year: 2010

description: This thesis is concerned with data processing techniques used to form images from long baseline interferometers (LBI). The basic problems to be overcome in the imaging process are to correct for the large phase errors introduced by the atmosphere and to allow for the sparse sampling of the aperture. The objectives of the study were to determine the relative importance of the constraints placed on the image and to look for improvements to the process. It is concluded that only a limited class of objects can be imaged. These objects must consist of separated features which remain separated in the zero-phase (or auto-correlation) image. Positivity and confinement were determined to be the most significant constraints for the imaging process. Closure-phase information is of secondary importance and is used to extend the dynamic range of the image once the main features are established. The main agent for enforcing the confinement constraint is the "CLEAN" algorithm. In the recovery of objects with extended features, the imaging process fails due to the well known inability of CLEAN to correctly restore these features. A new CLEAN algorithm has been developed which is stable for extended objects. This algorithm will be of interest to many synthesis telescope users as it not only yields better results but it is also significantly faster and easier to use than the earlier algorithms. Other experiments and analysis have shown that imaging processes which operate by maximizing a global image parameter such as sharpness or entropy cannot be used for imaging with large phase errors. This class of algorithms will always be confused by the zero-phase image. It was possible, however, to combine the global technique of maximum entropy with the additional constraints of confinement and closure-phase to form a working algorithm.
Search for Third Generation Vector Leptoquarks in p anti-p Collisions at sqrt(s) = 1.96 TeV
Creators: name: CDF Collaboration
name: Aaltonen, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We describe a search for a third generation vector leptoquark (VLQ3) that decays to a b quark and tau lepton using the CDF II detector and 322 pb^(-1) of integrated luminosity from the Fermilab Tevatron. Vector leptoquarks have been proposed in many extensions of the standard model (SM). Observing a number of events in agreement with SM expectations, assuming Yang-Mills (minimal) couplings, we obtain the most stringent upper limit on the VLQ3 pair production cross section of 344 fb (493 fb) and lower limit on the VLQ3 mass of 317 GeV/c^2 (251 GeV/c^2) at 95% C.L.
description: 7 pages, 2 figures, submitted to PRL