cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The age of the Galaxy's thick disk
Creators: name: Feltzing, S.
name: Bensby, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the age of the stellar disks in the solar neighbourhood. After reviewing the various methods for age dating we discuss current estimates of the age of both the thin and the thick disk. We present preliminary results for kinematically-selected stars that belong to the thin as well as the thick disk. All of these dwarf and sub-giant stars have been studied spectroscopically and we have derived both elemental abundances as well as ages for them. A general conclusion is that in the solar neighbourhood, on average, the thick disk is older than the thin disk. However, we caution that the exclusion of stars with effective temperatures around 6500 K might result in a biased view on the full age distribution for the stars in the thick disk.
description: 6 pages, contribution to IAU Symposium 258: The Ages of Stars, held in Baltimore, USA, October 13-17, 2008
On the plastic deformation of tin single crystals
Creators: name: Causey, Allan Robert
Publisher: name: University of British Columbia
Year: 2011

description: The effects of a polycrystalline surface layer on the critical resolved shear stress, yield stress and the work hardening rate of tin single crystals has been investigated. The change in these parameters was found to be independent of the thickness of the layer. The results have been interpreted in terms of the inhibition of surface sources and the higher stress level required to initiate interior sources. An exploratory investigation of the flow mechanism in tin was undertaken. Tin single crystals oriented for slip on the (110) [001] slip system were deformed in the temperature range from room temperature to -80°C, with the lower limit of temperature being sensitively dependent on the strain-rate. Twinning was observed to be the mode of deformation below this lower limit. Strain-rate change tests at temperatures from -27°C to R.T. were performed in order to assess the activation energy and activation volume. On the basis of these values, the flow mechanism was postulated to be the non-conservative motion of jogs in screw dislocations.
title: Deciphering the role of LPA and pseudopod machinery during melanoma chemotaxis
Creators: name: Koh, Yvette Wui Hui
Publisher: name: University of Glasgow
Year: 2018

description: In this thesis, I have applied a complementary and alternative understanding of melanoma chemotaxis by incorporating the role of LPA and through a pseudopod-centred approach. I have demonstrated that pseudopods are self organising actin entities that undergo mainly bifurcation (splitting) from preexisting protrusions rather than through synthesis of de novo pseudopods for melanoma cell chemotaxis. This observation was also extended to mouse melanoblast migration in vivo. These superior split pseudopods influence cell steering by alignment, size and lifetime regulation, and biases retraction. In non-metastatic cells, they are no longer able to form stable split pseudopods in response to external stimuli. LPA signaling is also established as vital for the stability of split pseudopods. Hence, in the event of LPAR1 perturbation, metastatic cells formed more actin protrusions but they adopted pseudopod morphologies similar to the non-metastatic lines. The role of Rac, Ras, Paxillin and Ezrin in split pseudopod regulation was also explored in this thesis. Finally, the increased stability of split pseudopods acting through LPA signalling could emerge as a signature of metastatic cells.
Scattering Theory Approach to Electrodynamic Casimir Forces
Creators: name: Rahi, Sahand Jamal
name: Emig, Thorsten
name: Graham, Noah
name: Jaffe, Robert L.
name: Kardar, Mehran
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We give a comprehensive presentation of methods for calculating the Casimir force to arbitrary accuracy, for any number of objects, arbitrary shapes, susceptibility functions, and separations. The technique is applicable to objects immersed in media other than vacuum, nonzero temperatures, and spatial arrangements in which one object is enclosed in another. Our method combines each object's classical electromagnetic scattering amplitude with universal translation matrices, which convert between the bases used to calculate scattering for each object, but are otherwise independent of the details of the individual objects. The method is illustrated by re-deriving the Lifshitz formula for infinite half spaces, by demonstrating the Casimir-Polder to van der Waals cross-over, and by computing the Casimir interaction energy of two infinite, parallel, perfect metal cylinders either inside or outside one another. Furthermore, it is used to obtain new results, namely the Casimir energies of a sphere or a cylinder opposite a plate, all with finite permittivity and permeability, to leading order at large separation.
description: 43 pages, 10 figures
Some aspects of the yielding and flow of lithium fluoride
Creators: name: Martinson, Riho Hans
Publisher: name: University of British Columbia
Year: 2012

description: Tension tests have been performed on LiF single crystals. The results of strain rate change tests are not wholly consistent with current theories of deformation processes. The number of mobile dislocations appears to depend sensitively on the stress prevailing during straining. A short investigation of the effect of removing surface layers during deformation was undertaken. The surfaces of chemically polished LiF single crystals are not sites of strong work-hardening. The effects of magnesium-rich surface layers on the mechanical properties of LiF have been studied. The yield stress, critical tensile stress, and work-hardening slope increase linearly with layer thickness, while the strain to fracture decreases rapidly with increasing layer thickness. The results of tension tests, supplemented by metallographic evidence, indicate that the yield stress and the critical tensile stress are not determined by surface source operation.
An Evolution of Cooperating Layered Architecture for SDN (CLAS) for Compute and Data Awareness
Creators: name: M. Contreras, Luis
name: Boucadair, Mohamed
name: Lopez, Diego
name: Bernardos, Carlos J.
Publisher: name: Zenodo
Year: 2023

description: Current telecommunication networks are evolving towards a tight
   integration of interconnected compute environments, offering
   capabilities for the instantiation of virtualized network functions
   interworking with physical variants of other network functions,
   altogether used to build and deliver services.

   Moreover, network operations are complementing the capabilities of
   automation (e.g., [RFC8969]) and programmability (e.g.,
   [RFC7149][RFC7426]) with the introduction of Artificial Intelligence
   (AI) and Machine Learning (ML) techniques to facilitate informed
   decisions as well as predictive behaviors enabling consistent closed
   loop automation.

   It is then necessary to provide a network management framework that
   could incorporate these technical components, structuring the
   different concerns (i.e., connectivity, processing and data analysis)
   and the interaction among components operating the network.  Existing
   approaches, e.g.  [RFC8969] only focus on the networking (i.e.,
   connectivity) part without consideration of both compute domain and
   data analysis.
Estimating the H I gas fractions of galaxies in the local Universe
Creators: name: Zhang, Wei
name: Li, Cheng
name: Kauffmann, Guinevere
name: Zou, Hu
name: Catinella, Barbara
name: Shen, Shiyin
name: Guo, Qi
name: Chang, Ruixiang
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use a sample of 800 galaxies with H I mass measurements from the HyperLeda catalogue and optical photometry from the fourth data release of the Sloan Digital Sky Survey to calibrate a new photometric estimator of the H I to-stellar mass ratio for nearby galaxies. Our estimator, which is motivated by the Kennicutt-Schmidt star formation law, is log(G_{HI}/S) = -1.73238(g-r) + 0.215182mu_i - 4.08451, where mu_i is the i-band surface brighteness and g-r is the optical colour estimated from the g- and r-band Petrosian apparent agnitudes. This estimator has a scatter of sigma = 0.31 dex in log(G_{HI}/S), compared to sigma ~ 0.4 dex for previous estimators that were based on colour alone. We investigate whether the residuals in our estimate of log(G_{HI}/S) depend in a systematic way on a variety of different galaxy properties. We find no effect as a function of stellar mass or 4000A break strength, but there is a systematic effect as a function of the concentration index of the light. We then apply our estimator to a sample of 10^5 emission-line galaxies in the SDSS DR4 and derive an estimate of the H I mass function, which is in excellent agreement with recent results from H I blind surveys. Finally, we re-examine the well-known relation between gas-phase metallicity and stellar mass and ask whether there is a dependence on H I-to-stellar mass ratio, as predicted by chemical evolution models. We do find that gas-poor galaxies are more metal rich at fixed stellar mass. We compare our results with the semi-analytic models of De Lucia & Blaizot, which include supernova feedback, as well as the cosmological infall of gas.
description: 12 pages, 9 figures, accepted for publication in MNRAS
J/Psi suppression, percolation model and the critical energy density in AA collisions at SPS and RHIC energies with the account of centrality
Creators: name: Feofilov, G.
name: Kochebina, O.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Experimental data on the onset of a so-called anomalous J/psi suppression in PbPb collisions at the SPS are considered in the framework of string percolation model. This onset is observed at a certain collision centrality, characterized by the number of nucleons-participants (Npart) related to the impact-parameter. Modified Bjorken formula calculations are performed for the local energy densities in AA collisions at different impact-parameters and with detailed account of the latest data available on the charged particles densities at midrapidity. Finally we compare variations of mean local energy and of string densities and match the occurrence of the critical percolation phenomenon with the critical energy density value, considering them at the same values of Npart. Similar analysis was performed for recent RHIC data and the results are discussed.
description: 6 pages,7 figures, Proceedings of Baldin ISHEPP XIX
CP PHYSICS AT DAFNE
Creators: name: P. FRANZINI
Publisher: name: INFN Open Access Repository
Year: 1991

description: We briefly review K^0-meson physics, in particular the observation and phenomenology of CP violation which was discovered 27 years ago and, to date, is still only observed in Kl decays. During the intervening time much effort has been devoted to the search for direct CP violation, trying to detect whether Kl's decay to π^+π^- and π^0π^0 in different ratios. Since long ago e^+e^- colliders, pionieered at Frascati, have been considered as possible factories of clean physical states. We show the potential of DAPHNE to provide enough data to improve by an order of magnitude the sensitivity of such searches. We discuss the spatial accuracy required to measure the difference in phase of the amplitude ratios A(Kl->π^+π^-)/A(Ks->π^+π^-) and A(Kl->π^+π^-)/A(Ks->π^+π^-). We examine problems of regeneration and other physical backgrounds. Finally we discuss some requirements for electromagnetic calorimetry at DAPHNE and briefly describe a possible solution.
Limited evidence for reliability of low and high frequency rTMS over the motor cortex
Creators: name: Prei, Kilian
name: Kanig, Carolina
name: Osnabruegge, Mirja
name: Langguth, Berthold
name: Mack, Wolfgang
name: Abdelnaim, Mohamed A.
name: Schecklmann, Martin
name: Schoisswohl, Stefan
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: Cortical excitability Motor evoked potential (MEP) Repetitive transcranial magnetic stimulation (rTMS) Test-retest reliability Variability
subject: 610 Medizin

description: Objective

The aim of this study was to investigate the reliability of low-frequency and high-frequency repetitive transcranial magnetic stimulation (rTMS) on healthy individuals over the motor cortex. A secondary outcome was the assessment if low-frequency rTMS results in inhibition and high-frequency rTMS results in facilitation.
Methods

In this experiment, 30 healthy participants received on four consecutive days one session each with application of 1 Hz or 20 Hz rTMS over the left motor cortex. 1 Hz and 20 Hz were applied in alternating order, whereby the starting frequency was randomized. Motor evoked potentials (MEPs) were measured before and after each session. Reliability measures were intraclass and Pearson’s correlation coefficient (ICC and r).
Results

ICCs and r values were low to moderate. Notably, within subgroups of less confounded measures, we found good r values for 20 Hz rTMS. The group-level analysis did not demonstrate a clear low-frequency inhibition and high-frequency facilitation pattern. At the single-subject level, only one participant exhibited significant changes consistent with the expected pattern, with concurrent decreases in MEPs following 1 Hz sessions and increases following 20 Hz sessions.
Conclusion

The investigated neuromodulatory protocols show low to moderate reliability. Results are questioning the low-frequency inhibition and high-frequency facilitation pattern.
Significance

Methodological improvements for the usage of rTMS are necessary to increase validity and reliability of non-invasive brain stimulation.
Should "The Stone Age" Be Called "The Stone And Basket Age?"
Creators: name: Doble, Rick
Publisher: name: figshare
Year: 2023
Subjects: Archaeological science
Archaeology of Asia, Africa and the Americas
Archaeology of Europe, the Mediterranean and the Levant
Historical archaeology (incl. industrial archaeology)
Maritime archaeology
Archaeology not elsewhere classified
Global and world history
Middle Eastern and North African history
Historical studies not elsewhere classified
Other history, heritage and archaeology not elsewhere classified
Anthropology of development
Anthropology not elsewhere classified
Other human society not elsewhere classified

description: A complete, fully illustrated, tentative theory about the million(s?) year evolution of basket weaving and woven-fiber technology that was crucial for the development of civilization. It includes extensive documentation.
Further explorations of Skyrme-Hartree-Fock-Bogoliubov mass formulas. XI: Stabilizing neutron stars against a ferromagnetic collapse
Creators: name: Chamel, N.
name: Goriely, S.
name: Pearson, J. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We construct a new Hartree-Fock-Bogoliubov (HFB) mass model, labeled HFB-18, with a generalized Skyrme force. The additional terms that we have introduced into the force are density-dependent generalizations of the usual $t_1$ and $t_2$ terms, and are chosen in such a way as to avoid the high-density ferromagnetic instability of neutron stars that is a general feature of conventional Skyrme forces, and in particular of the Skyrme forces underlying all the HFB mass models that we have developed in the past. The remaining parameters of the model are then fitted to essentially all the available mass data, an rms deviation $σ$ of 0.585 MeV being obtained. The new model thus gives almost as good a mass fit as our best-fit model HFB-17 ($σ$ = 0.581 MeV), and has the advantage of avoiding the ferromagnetic collapse of neutron stars.
description: accepted for publication in Physical Review C
ON N = 3 SUPER-KdV EQUATION
Creators: name: S. BELLUCCI
name: E. IVANOV
name: S. KRIVONOS
Publisher: name: INFN Open Access Repository
Year: 1992

description: We construct a one-parameter family of N=3 supersymmetric extensions of the KdV equation as a Hamiltonian flow on a N=3 superconformal algebra and argue that it is non-integrable for any choice of the parameter. Then we propose a modified N=3 super KdV equation which possesses the higher order conserved quantities and so is a candidate for an integrable system. Upon reduction to N=2, it yelds the recently discussed 'would-be integrable' version of the N=2 super KdV equation. In the bosonic core it contains a coupled system of the KdV type equation and a three-component generalization of the mKdV equation. We give a Hamiltonian formulation of the new N=3 super KdV equation as a flow on some contraction of the direct sum of two N=3 superconformal algebras.
Dilatation of a one-dimensional nonlinear crack impacted by a periodic elastic wave
Creators: name: Junca, Stéphane
name: Lombard, Bruno
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Physics (physics.class-ph)
subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The interactions between linear elastic waves and a nonlinear crack with finite compressibility are studied in the one-dimensional context. Numerical studies on a hyperbolic model of contact with sinusoidal forcing have shown that the mean values of the scattered elastic displacements are discontinuous across the crack. The mean dilatation of the crack also increases with the amplitude of the forcing levels. The aim of the present theoretical study is to analyse these nonlinear processes under a larger range of nonlinear jump conditions. For this purpose, the problem is reduced to a nonlinear differential equation. The dependence of the periodic solution on the forcing amplitude is quantified under sinusoidal forcing conditions. Bounds for the mean, maximum and minimum values of the solution are presented. Lastly, periodic forcing with a null mean value is addressed. In that case, a result about the mean dilatation of the crack is obtained.
description: submitted to the SIAM J. App. Math
MacDust - a Power Diffraction Package Developed for the ???ADONE??? High Resolution Diffraction Station
Creators: name: E. Burattini
name: G. Cappuccio
name: P. Maistrelli
name: S. Simeoni
Publisher: name: INFN Open Access Repository
Year: 1993

description: A High Resolution Powder Diffraction Station (PO.DI.STA.) was installed at the beginning of 1991 on the ADONE-Wiggler magnet beam line. The station and the first powder diffraction spectra, collected with synchrotron radiation, were presented at the EPDIC-1 Conference[1]. More details can also be found in [2]. For this station, a very sophisticated software package 'MacDUST' has been developed on an Apple Machintosh computer, using the Microsoft QuickBASIC compiler. It allows very easy and comfortable operations by means of a graphycal user interface environment, typical of the Macintosh system. The package consists of five major programs. The main program, MacDIFF, performs all the graphic operations on the experimental data, including zooming, overlapping, cursor scanning and editing of patterns, control of output operations to printers and HPGL plotters. It also includes several analysis routines for data smoothing, a first derivate peak search algorithm, two background subtraction routines and two profile fitting programs: one based on the simplex method and the other on the Marquardt modification of a least-square algorithm. MacPDF and MacRIC are both dedicated to phase identification. The first program is an archive manager for searching, displaying and printing phase records; MacRIC is a graphic aided search-match program based on the Hanawalt [5] algorithm. Mac3-DIM is a plot program, useful, e.g., for representing kinetics three dimensionally. MacRIET is a Macintosh version of the well known Rietveld [14,15] refinement program. This version, besides conventional structure rfinements, also allows to determination of micro structural parameters, i.e. micro strain and crystallite size [9]. The program can also be used to simulate a pattern, once the structure of the compound is known. Taking advantage of the very intuitive Macintosh graphic user interface, through dialog and alert boxes, the program allows straightforward introduction and modification of the structure parameters.
title: Solidarität mit den Alten
Creators: name: Stracke, Elmar
Publisher: name: University of Bayreuth
Year: 2020
Subjects: subject: Alter
subject: Altern
subject: Demografie
subject: Senioren
subject: Corona
subject: Ageing
subject: Fair Innings
subject: Generation
subject: Gerechtigkeit
subject: Ethik
subject: Alte
subject: 170
subject: 610

description: In Zeiten von Corona will niemand alt sein. Das Risiko schwere Symptome zu entwickeln oder sogar an der Krankheit zu sterben, wächst mit den Lebensjahren statistisch stark an. Wenn sich daher Regierung und Gesellschaft vor allem um die betagten Mitmenschen sorgen, dann nicht, weil sie alt sind, sondern weil sie besonders schutzbedürftig sind. Dass aber ausgerechnet die Alten die hauptsächliche Risikogruppe bilden, ermöglicht und verlangt außergewöhnliche politische und moralphilosophische Erwägungen.
title: Σύγχρονες μορφές τραπεζικής και ικανοποίηση πελατών
title: Modern forms of banking and customer satisfaction
Creators: name: Παντζελιουδακης Μανωλης-Ρουσσος
Publisher: name: Technical University of Crete
Year: 2023

description: Οι στόχοι της παρούσας διπλωματικής εργασίας ήταν να αξιολογηθεί ο αντίκτυπος της ποιότητας των υπηρεσιών ηλεκτρονικής τραπεζικής στην ικανοποίηση των πελατών των τραπεζών στην Ελλάδα και να προσδιοριστούν εκείνοι οι παράγοντες (κριτήρια) που επιδέχονται βελτίωση με σκοπό να αυξηθεί η αποτελεσματικότητα και η απόδοση των υπηρεσιών ηλεκτρονικής τραπεζικής. Για το σκοπό αυτό πραγματοποιήθηκε ποσοτική έρευνα σε δείγμα 153 πελατών Ελληνικών τραπεζών με διανομή ηλεκτρονικού ερωτηματολογίου. Για την συλλογή των δεδομένων χρησιμοποιήθηκε ως θεωρητικό πλαίσιο το μοντέλο SERVQUAL, ενώ για την ανάλυση των δεδομένων χρησιμοποιήθηκε η μέθοδος MUSA (Multicriteria Satisfaction Analysis). Τα αποτελέσματα της έρευνας έδειξαν πως το 75.8% των πελατών τραπεζών στην Ελλάδα κάνουν χρήση υπηρεσιών ηλεκτρονικής τραπεζικής συχνά ή πολύ συχνά. Οι μορφές ηλεκτρονικής τραπεζικής που χρησιμοποιεί η πλειοψηφία των πελατών είναι το internet/ web banking και το mobile banking. Η έρευνα έδειξε πως οι πελάτες των Ελληνικών τραπεζών αναγνωρίζουν την ποιότητα των υπηρεσιών ηλεκτρονικής τραπεζικής ενώ έχουν κάποιες αμφιβολίες σε ζητήματα ασφάλειας και ιδιωτικότητας. Τα χαρακτηριστικά που πρέπει να βελτιώσουν οι τράπεζες στις υπηρεσίες ηλεκτρονικής τραπεζικής ώστε να αυξήσουν την ικανοποίηση των πελατών τους είναι η δυνατότητα άμεσης βοήθειας, η δυνατότητα απάντησης ερωτήσεων, η αποτελεσματική αντιμετώπιση των παραπόνων και η παροχή υπηρεσιών που να συμβαδίζουν με τις προτιμήσεις των πελατών.
description: The objectives of this thesis were to assess the impact of e-banking services quality on bank customer satisfaction in Greece and identify those factors (criteria) that can be improved in order to increase the efficiency and performance of e-banking services. For this purpose, a quantitative survey was carried out on a sample of 153 customers of Greek banks by distributing an electronic questionnaire. The SERVQUAL model was used as a theoretical framework for data collection, while the MUSA (Multicriteria Satisfaction Analysis) method was used for data analysis. The results of the survey showed that 75.8% of bank customers in Greece use electronic banking services often or very often. The forms of electronic banking used by the majority of customers are internet/web banking and mobile banking. The survey showed that the customers of Greek banks recognize the quality of electronic banking services, while they have some doubts regarding security and privacy issues. The features that banks should improve in their e-banking services in order to increase their customer satisfaction are the ability to provide immediate assistance, the ability to answer questions, the effective handling of complaints and the provision of services that are in line with customer preferences.
Denouement of a Wormhole-Brane Encounter
Creators: name: Rodrigo, Enrico
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Higher-dimensional black holes have long been considered within the context of brane worlds. Recently, it was shown that the brane-world ethos also permits the consideration of higher-dimensional wormholes. When such a wormhole, preexisting in the bulk, impinges upon our universe, taken to be a positive-tension 3-brane, it can induce the creation in our universe of a wormhole of ordinary dimensionality. The throat of this wormhole might fully constrict, pinch off, and thus birth a baby universe. Alternatively, the induced wormhole might persist. I show that persistence is more likely and note that the persistent wormhole manifests as a particle-like object whose interaction with cosmic matter is purely gravitational. I consider briefly the viability of this object as a dark matter candidate.
description: 12 pages, 2 figures, accepted by Int. J. Mod. Phys. D
THE FRASCATI PROGRAM FOR MEASURING THE TOTAL PHOTONUCLEAR CROSS SECTION IN THE NUCLEON RESONANCE REGION
Creators: name: M. ANGHINOLFI
name: N. BIANCHI
name: P. CORVISIERO
name: A. DEPPMAN
name: E. DE SANCTIS
name: A. EBOLESE
name: A. FANTONI
name: G. GERVINO
name: P. LEVI-SANDRI
name: V. LUCHERINI
name: L. MAZZASCHI
name: V. MOKEEV
name: V. MUCCIFORA
name: E. POLLI
name: A.R. REOLON
name: G. RICCO
name: M. RIPANI
name: P. ROSSI
name: M. SANZONE
name: M. TAIUTI
name: A. ZUCCHIATTI
Publisher: name: INFN Open Access Repository
Year: 1991

description: We present the research studies on the total photonuclear absorption carried on at Frascati between 200 and 1200 MeV, to obtain information on the interaction of baryon resonances with nucleons and on the possible onset of the shadowing effect. The preliminary results on Be and C obtained using the trasmission technique and the Jet Target tagged photon beam are presented in this paper.
How Classical Particles Emerge From the Quantum World
Creators: name: Dieks, Dennis
name: Lubberdink, Andrea
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The symmetrization postulates of quantum mechanics (symmetry for bosons, antisymmetry for fermions) are usually taken to entail that \emph{quantum particles} of the same kind (e.g., electrons) are all in exactly the same state and therefore indistinguishable in the strongest possible sense. These symmetrization postulates possess a general validity that survives the classical limit, and the conclusion seems therefore unavoidable that even classical particles of the same kind must all be in the same state--in clear conflict with what we know about classical particles. In this article we analyze the origin of this paradox. We shall argue that in the classical limit classical particles \emph{emerge}, as new entities that do not correspond to the "particle indices" defined in quantum mechanics. Put differently, we show that the quantum mechanical symmetrization postulates do not pertain to \emph{particles}, as we know them from classical physics, but rather to indices that have a merely formal significance. This conclusion raises the question of whether the discussions about the status of identical quantum particles have not been misguided from the very start.
title: Konpetentzia digitalak. Graduko ikasleentzako formakuntza materialak: 3. Eduki digitalen sorkuntza 3.1. Eduki digitalen garapena: 3.1.1. Eduki digitalak sortu eta kudeatu
title: Competencias digitales. Materiales de formación para estudiantes de grado: 3. Creación de contenido digital 3.1. Desarrollo de contenidos digitales: 3.1.1. Crea y gestiona contenidos digitales
Creators: name: CRUE-REBIUN
name: Mondragon Unibertsitatea
Publisher: name: Mondragon Unibertsitatea
Year: 2020

description: Tresna motak: 
- Aurkezpenak sortzeko
- Diagramak sortzeko
- Kartelak, posterrak eta argitalpenak sortzeko
- Audio eta bideoak sortzeko eta kudeatzeko
- Blog eta orri pertsonalak sortzeko eta kudeatzeko
Gehiago jakiteko...
description: Herramientas: 
- Para la creación de presentaciones
- Para la creación de diagramas
- Para la creación de carteles, pósters y publicaciones
- Para la creación y gestión de audio y vídeo
- Para la creación y gestión de blogs y páginas personales
Para saber más...
Constraints on charged Higgs bosons from D(s)+- -> mu+- nu and D(s)+- -> tau+- nu
Creators: name: Akeroyd, A. G.
name: Mahmoudi, F.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The decays D(s)+- -> mu+- nu and D(s)+- -> tau+- nu have traditionally been used to measure the D(s)+- meson decay constant f_D(s). Recent measurements at CLEO-c and the B factories suggest a branching ratio for both decays somewhat higher than the Standard Model prediction using f_D(s) from unquenched lattice calculations. The charged Higgs boson (H+-) in the Two Higgs Doublet Model (Type II) would also mediate these decays, but any sizeable contribution from H+- can only suppress the branching ratios and consequently is now slightly disfavoured. It is shown that constraints on the parameters tan(beta) and m_H+- from such decays can be competitive with and complementary to analogous constraints derived from the leptonic meson decays B+- -> tau+- nu_tau and K+- -> mu+- nu_mu, especially if lattice calculations eventually prefer f_D(s) < 250 MeV.
description: 18 pages, 4 figures
Frictional transition effects in unlubricated sliding
Creators: name: Pomeroy, Richard James
Publisher: name: University of British Columbia
Year: 2012

description: The object of this research was to study the effect of initial surface -finish and finish mark orientation on intermetallic friction under unlubricated sliding contact conditions. The metal used was mild steel and the parameters investigated were sliding speed and load. Qualitative assessments of wear were also made. The basic apparatus consisted of a rotating disc and an elastically supported slider. The disc and slider each had the same-initial surface finish. Six different surface finishes were examined ranging in roughness from a peak to valley distance of 6.9 thousandths of an inch to 35 microinches R.M.S. Speed was varied from 1.25 to 60 inches per second and normal load from 1.025 to 3.075 pounds. No significant correlation was found, between the theory of Ernst and Merchant and the experimental results. Friction was more dependent on surface parameters affecting load concentration than, on the particular details of each surface asperity. The effects of finish mark orientation were only significant when they produced appreciable load concentration. Friction was found to increase as "wear-in" progressed and remain approximately constant once wear-in was complete. No relation between friction and velocity could be deduced. Wear-in was found to be influenced by initial surface geometry. The sufaces which gave high load concentration at sharp protuberances "wore-in" more quickly than those-with low load concentration. Smooth compatible surfaces which required little surface alteration also wore-in rapidly. Wear debris was found to influence both friction and wear-in. Evidence of mechanical working of debris between the surfaces was obtained. A quasi-harmonic oscillation of the slider supporting system was observed to result from wear-in. The frequency of vibration was a function of disc speed and load. The amplitude of the vibration increased linearly with disc speed up to a maximum value. The magnitude-of this maximum was dependent on normal load.
The targum (1979:Mar. 5 - 1979:Mar. 30)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1979

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
A Simple "Quantum Interrogation" Method
Creators: name: Ghose, Partha
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A simple non-interferometric "quantum interrogation" method is proposed which uses evanescent wave sensing with frustrated total internal reflection on a surface. The simple method has the advantage over the original interferometric Elitzur-Vaidman method of being able to detect objects that are neither black nor non-diffracting and that are such that they cannot be introduced into an arm of an interferometer for whatever reason (e.g. its size, sensitivity, etc.). The method is intrinsically of high efficiency.
description: 8 pages, 1 figure; accepted for publication in Advanced Science Letters; added an Acknowledgement section at the end and corrected typos
Желудочковая экстрасистолия у пациентов без структурных изменений сердца: механизмы формирования, предикторы развития аритмогенной кардиомиопатии и принципы фармакологической и немедикаментозной терапии
Creators: name: Олесин Александр Иосифович
name: Константинова Ирина Викторовна
name: Зуева Юлия Сергеевна
name: Соколова Мария Дмитриевна
Publisher: name: Международный журнал сердца и сосудистых заболеваний
Year: 2020
Subjects: ЖЕЛУДОЧКОВЫЕ ЭКСТРАСИСТОЛИИ У ПАЦИЕНТОВ БЕЗ СТРУКТУРНЫХ ИЗМЕНЕНИЙ СЕРДЦА
ПРИНЦИПЫ ПРЕДУПРЕЖДЕНИЯ РАЗВИТИЯ АРИТМОГЕННОЙ КАРДИОМИОПАТИИ

description: В обзорной статье представлен критический анализ клинических исследований последних лет, посвященных выявлению желудочковой экстрасистолии (ЖЭ) у практически здоровых лиц, т.е. у пациентов без структурных изменений сердца. Развитие частых преждевременных желудочковых комплексов может индуцировать дисфункцию левого желудочка (ЛЖ), приводящую к формированию аритмогенной кардиомиопатии. Поэтому целью данной статьи является определение на основании анализа литературных данных, основных механизмов развития ЖЭ у пациентов без структурных изменений сердца, предикторов возникновения дисфункции ЛЖ и аритмогенной кардиомиопатии, индуцированной преждевременными желудочковыми комплексами, а также оценка эффективности фармакологической антиаритмической терапии и интервенционного лечения желудочковой эктопии. Проведенный анализ позволит направления будущих клинических исследований по совершенствованию терапии ЖЭ у пациентов без структурных изменений сердца.The review article presents critical analysis of clinical studies over the last years, dedicated to ventricular extrasystoles (VEs) detection in practically health individuals, i. e. in patients without cardiac structural changes. The development of frequent premature ventricular contractions can induce left ventricular (LV) dysfunction and lead to the formation of arrhythmogenic cardiomyopathy. Therefore, the objective of this article is to determine, based on the analysis of literature and research data, the main mechanisms of VEs development in patients without cardiac structural changes, predictors of LV dysfunction and arrhythmogenic cardiomyopathy induced by premature ventricular complexes, and to evaluate the effectiveness of pharmacological and interventional antiarrhythmic therapy. The analysis will show the future direction for clinical trials on VE treatment in patients without cardiac structural changes.
The role of the Yoshizawa effect in the Archontis dynamo
Creators: name: Sur, Sharanya
name: Brandenburg, Axel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The generation of mean magnetic fields is studied for a simple non-helical flow where a net cross helicity of either sign can emerge. This flow, which is also known as the Archontis flow, is a generalization of the Arnold--Beltrami--Childress flow, but with the cosine terms omitted. The presence of cross helicity leads to a mean-field dynamo effect that is known as the Yoshizawa effect. Direct numerical simulations of such flows demonstrate the presence of magnetic fields on scales larger than the scale of the flow. Contrary to earlier expectations, the Yoshizawa effect is found to be proportional to the mean magnetic field and can therefore lead to its exponential instead of just linear amplification for magnetic Reynolds numbers that exceed a certain critical value. Unlike $α$ effect dynamos, it is found that the Yoshizawa effect is not noticeably constrained by the presence of a conservation law. It is argued that this is due to the presence of a forcing term in the momentum equation which leads to a nonzero correlation with the magnetic field. Finally, the application to energy convergence in solar wind turbulence is discussed.
description: Accepted for publication in MNRAS
Emptiness and Depletion Formation Probability in spin models with inverse square interaction
Creators: name: Franchini, F.
name: Kulkarni, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We calculate the Emptiness Formation Probability (EFP) in the spin-Calogero Model (sCM) and Haldane-Shastry Model (HSM) using their hydrodynamic description. The EFP is the probability that a region of space is completely void of particles in the ground state of a quantum many body system. We calculate this probability in an instanton approach, by considering the more general problem of an arbitrary depletion of particles (DFP). In the limit of large size of depletion region the probability is dominated by a classical configuration in imaginary time that satisfies a set of boundary conditions and the action calculated on such solution gives the EFP/DFP with exponential accuracy. We show that the calculation for sCM can be elegantly performed by representing the gradientless hydrodynamics of spin particles as a sum of two spin-less Calogero collective field theories in auxiliary variables. Interestingly, the result we find for the EFP can be casted in a form reminiscing of spin-charge separation, which should be violated for a non-linear effect such as this. We also highlight the connections between sCM, HSM and $λ=2$ spin-less Calogero model from a EFP/DFP perspective.
description: 26 pages, no figures
Spitzer-IRS high resolution spectroscopic survey of the 12 micron Seyfert galaxies: II. Results for the Complete Dataset
Creators: name: Tommasin, Silvia
name: Spinoglio, Luigi
name: Malkan, Matthew A.
name: Fazio, Giovanni
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the Spitzer 10-37um IRS high resolution (R~600) spectroscopic survey of the Seyfert galaxies of the 12 micron Galaxy Sample. The new spectra of 61 galaxies, with those already published, gives us a total of 91 12micron Seyfert galaxies observed, out of 112. We use an improved AGN classification for Seyfert galaxies: instead of the type 1 and 2 classes, we use the spectropolarimetric data to divide them into "AGN 1" and "AGN 2", where AGN 1's include all broad-line objects, including the Seyfert 2's showing hidden broad lines in polarized light, while AGN 2's contains only Seyferts with no detectable broad lines at all. We present various mid-IR observables and we find that these properties characterize the AGN 1's objects as a single family, with strongly AGN-dominated spectra. In contrast, the AGN 2's can be divided in two groups, the first one with properties similar to the AGN 1's and the second similar to the non-Seyfert galaxies, such as LINERs or starburst galaxies. We computed a semianalytical model to estimate the AGN and the starburst contributions to the mid-IR galaxy emission at 19um. We find that AGN 1 have an AGN contribution >73% and AGN 2 >45% of their total emission at 19um. The detection of [NeV] lines is an almost perfect signature of energy production by an AGN. We present mean spectra of the various AGN categories. We derive the first local luminosity functions for the mid-infrared lines and the PAH feature. No statistical difference is found in the space densities for Seyfert 1's and 2's, nor for the new classes of AGN 1's and 2's. The global output of accretion-powered galactic nuclei in the local universe is derived from the correlation between [NeV] line and the nonstellar IR continuum luminosity.
description: Accepted in The Astrophysical Journal Part 1 on November 15, 2009. 58 pages
Rick Doble's Theory About The Human Understanding of Time (HUT)
Creators: name: Doble, Rick
Publisher: name: figshare
Year: 2023
Subjects: Cosmology and extragalactic astronomy
Archaeological science
Archaeology not elsewhere classified
Archaeology of Asia, Africa and the Americas
Archaeology of Europe, the Mediterranean and the Levant
Classical Greek and Roman history
Gender studies not elsewhere classified
Historical archaeology (incl. industrial archaeology)
Historical studies not elsewhere classified
Other history, heritage and archaeology not elsewhere classified
History and philosophy of specific fields not elsewhere classified
History and philosophy of science
History of ideas
Language studies not elsewhere classified
Philosophy of language
Philosophy of cognition
Cultural theory
Sociolinguistics
Historical, comparative and typological linguistics
Other language, communication and culture not elsewhere classified
Linguistic anthropology
Social and cultural anthropology
Other human society not elsewhere classified
Anthropology not elsewhere classified

description: The Human Understanding of Time (HUT). The HUT Theory is a comprehensive theory. It outlines how the human sense of time might have come about and how it might have developed. This theory is based on blogs written by Rick Doble over the last ten years. The theory begins with evidence about 2 million years ago and continues with indirect and direct evidence from the Paleolithic and Neolithic eras, Ancient and Classical civilizations and the Middle Ages and up to the present day.
The method of unitary clothing transformations in the theory of nucleon-nucleon scattering
Creators: name: Dubovyk, I.
name: Shebeko, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The clothing procedure, put forward in quantum field theory by Greenberg and Schweber, is applied for the description of nucleon-nucleon (N-N) scattering. We consider pseudoscalar, vector and scalar meson fields interacting with 1/2 spin fermion ones via the Yukawa-type couplings to introduce trial interactions between "bare" particles. The subsequent unitary clothing transformations are found to express the total Hamiltonian through new interaction operators that refer to particles with physical (observable) properties, the so-called clothed particles. In this work, we are focused upon the Hermitian and energy-independent operators for the clothed nucleons, being built up in the second order in the coupling constants. The corresponding analytic expressions in momentum space are compared with the separate meson contributions to the one-boson-exchange potentials in the meson theory of nuclear forces. In order to evaluate the T-matrix of the N-N scattering we have used an equivalence theorem that enables us to operate in the clothed particle representation (CPR) instead of the bare particle representation with its huge amount of virtual processes. We have derived the Lippmann-Schwinger-type equation for the CPR elements of the T-matrix for a given collision energy in the two-nucleon sector of the Hilbert space of hadronic states and elaborated a code for its numerical solution in momentum space.
description: 10 pages, 3 eps figures, proceedings of "19th International IUPAP Conference on Few-Body Problems in Physics"(FB19), 30Aug-05Sep 2009, Bonn, Germany
Современные возможности применения антагонистов рецепторов ангиотензина II в клинической практике
Creators: name: Ложкина Марина Витальевна
name: Коваленко Елена Викторовна
name: Арабидзе Григорий Гурамович
Publisher: name: Международный журнал сердца и сосудистых заболеваний
Year: 2020
Subjects: АНТАГОНИСТЫ РЕЦЕПТОРОВ АНГИОТЕНЗИНА II
ТЕЛМИСАРТАН
ОРГАНОПРОТЕКЦИЯ
КАРДИОВАСКУЛЯРНЫЙ РИСК

description: Гиперактивация ренин-ангиотензин-альдостероновой системы является ключевым механизмом развития и прогрессиро вания сердечно-сосудистых заболеваний. Антагонисты рецепторов ангиотензина II на сегодняшний день имеют доста точную доказательную базу как антигипертензивные препараты, обладающие органопротективными свойствами. В статье представлены и обоснованы с позиции доказательной медицины возможности использования представителя антагони стов рецепторов ангиотензина II телмисартана в различных клинических ситуациях.Renin-angiotensin aldosterone system hyperactivation is one of the main mechanisms of cardiovascular disease progression. Nowadays angiotensin II receptor antagonists have sufficient evidence base as antihypertensive drugs with organoprotective properties. This article presents and substantiates the possibilities of one of angiotensin II receptor antagonists-telmisartan, in various clinical cases from the perspective of evidence-based medicine.
Indistinguishability of independent single photons
Creators: name: Sun, F. W.
name: Wong, C. W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The indistinguishability of independent single photons is presented by decomposing the single photon pulse into the mixed state of different transform limited pulses. The entanglement between single photons and outer environment or other photons induces the distribution of the center frequencies of those transform limited pulses and makes photons distinguishable. Only the single photons with the same transform limited form are indistinguishable. In details, the indistinguishability of single photons from the solid-state quantum emitter and spontaneous parametric down conversion is examined with two-photon Hong-Ou-Mandel interferometer. Moreover, experimental methods to enhance the indistinguishability are discussed, where the usage of spectral filter is highlighted.
description: 6 pages, 3 figures