cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: These Days Are Ours: Exploring Young Disabled People's Experiences and Views of the Disabled People's Movement
Creators: name: Griffiths, M
Publisher: name: Liverpool John Moores University
Year: 2019

description: This thesis explores challenges encountered by young disabled people participating and engaging within the UK Disabled People’s Movement (DPM). Challenges they face were identified following a qualitative investigation. Seventeen semi-structured interviews were conducted with both young disabled people and established members of the Movement. The thesis argues that, for the Movement to be inclusive, remain committed to the social model of disability and accessible to young disabled people, the DPM must provide young members and newcomers with the resources and support to offer a vision for a new and inclusive society. To achieve this, the social model should be repositioned: from a tool/strategy to an "oppositional device" (Beckett and Campbell 2015) that provides counter-rationalities and disrupts the normative practices inherent in the political, economic, and cultural realms. The thesis opens by exploring prominent debates pertinent to the situation of disabled people in contemporary society. It focuses on the politicisation of disability and the intrinsic aspects affecting young disabled people's participation within activism and campaigning. Then follows a review of social movement literature charting the development and existence of (new) social movements, and how the DPM is understood in this field. An Emancipatory Disability Research approach is employed. It led into an original account of key challenges articulated by young disabled people as they attempt to participate in the UK DPM. These are positioned around three central themes: membership, organisation of the Movement, and future considerations that will affect the DPM’s sustainability. Through existing literature, the research delineates a way forward; its emphasis lies on oppositional devices. The thesis addresses directly the concerns raised by respondents. It will prompt discussion - within and outside of academia - on the standing of young disabled people within the DPM. The research contributes towards an understanding of youth and disability activism.
A fractional diffusion equation for two-point probability distributions of a continuous-time random walk
Creators: name: Baule, A.
name: Friedrich, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Continuous time random walks are non-Markovian stochastic processes, which are only partly characterized by single-time probability distributions. We derive a closed evolution equation for joint two-point probability density functions of a subdiffusive continuous time random walk, which can be considered as a generalization of the known single-time fractional diffusion equation to two-time probability distributions. The solution of this generalized diffusion equation is given as an integral transformation of the probability distribution of an ordinary diffusion process, where the integral kernel is generated by an inverse Lévy stable process. Explicit expressions for the two time moments of a diffusion process are given, which could be readily compared with the ones determined from experiments.
description: 6 pages, 1 figure
Resurgent functions and splitting problems
Creators: name: Sauzin, David
Publisher: name: arXiv
Year: 2007
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: The present text is an introduction to Écalle's theory of resurgent functions and alien calculus, in connection with problems of exponentially small separatrix splitting. An outline of the resurgent treatment of Abel's equation for resonant dynamics in one complex variable is included. The emphasis is on examples of nonlinear difference equations, as a simple and natural way of introducing the concepts.
description: 70 pages
Dark Matter & Dark Energy from a single scalar field: CMB spectrum and matter transfer function
Creators: name: Roberto, Mainini
name: Bonometto, Silvio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The dual axion model (DAM), yielding bot DM and DE form a PQ-like scalar field solving the strong CP problem, is known to allow a fair fit of CMB data. Recently, however, it was shown that its transfer function exhibits significant anomalies, causing difficulties to fit deep galaxy sample data. Here we show how DAM can be modified to agree with the latter data set. The modification follows the pattern suggested to reconcile any PQ-like approach with gravity. Modified DAM allows precise predictions which can be testable against future CMB and/or deep sample data.
description: 15 pages, 8 figures, accepted for publication in JCAP
Energy dependence of particle ratio fluctuations in central Pb+Pb collisions from $\sqrt{s_{_{NN}}} =$~6.3 to 17.3 GeV
Creators: name: NA49 Collaboration
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present measurements of the energy dependence of event-by-event fluctuations in the K/pi and (p + \bar{p})/pi multiplicity ratios in heavy ion collisions at the CERN SPS. The particle ratio fluctuations were obtained for central Pb+Pb collisions at five collision energies, \sqrt{s_{_{NN}}}, between 6.3 and 17.3 GeV. After accounting for the effects of finite-number statistics and detector resolution, we extract the strength of non-statistical fluctuations at each energy. For the K/pi ratio, larger fluctuations than expected for independent particle production are found at all collision energies. The fluctuations in the (p + \bar{p})/pi ratio are smaller than expectations from independent particle production, indicating correlated pion and proton production from resonance decays. For both ratios, the deviation from purely statistical fluctuations shows an increase towards lower collision energies. The results are compared to transport model calculations, which fail to describe the energy dependence of the K/pi ratio fluctuations.
description: 11 pages, 10 figures, update to published version
Chlorine doping of MoSe2 flakes by ion implantation
Creators: name: Prucnal, Slawomir
name: Hashemi, Arsalan
name: Ghorbani-Asl, Mahdi
name: Hübner, René
name: Duan, Juanmei
name: Wei, Yidan
name: Sharma, Divanshu
name: Zahn, Dietrich R. T.
name: Ziegenrücker, René
name: Kentsch, Ulrich
name: Krasheninnikov, Arkady V.
name: Helm, Manfred
name: Zhou, Shengqiang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The efficient integration of transition metal dichalcogenides (TMDs) into the current electronic device technology requires mastering the techniques of effective tuning of their optoelectronic properties. Specifically, controllable doping is essential. For conventional bulk semiconductors, ion implantation is the most developed method offering stable and tunable doping. In this work, we demonstrate n-type doping in MoSe2 flakes realized by low-energy ion implantation of Cl+ ions followed by millisecond-range flash lamp annealing (FLA). We further show that FLA for 3 ms with a peak temperature of about 1000 °C is enough to recrystallize implanted MoSe2. The Cl distribution in few-layer-thick MoSe2 is measured by secondary ion mass spectrometry. An increase in the electron concentration with increasing Cl fluence is determined from the softening and red shift of the Raman-active A_1g phonon mode due to the Fano effect. The electrical measurements confirm the n-type doping of Cl-implanted MoSe2. A comparison of the results of our density functional theory calculations and experimental temperature-dependent micro-Raman spectroscopy data indicates that Cl atoms are incorporated into the atomic network of MoSe2 as substitutional donor impurities.
description: 32 pages, 10 figures
Localization of ultrasound in a three-dimensional elastic network
Creators: name: Hu, H.
name: Strybulevych, A.
name: Page, J. H.
name: Skipetrov, S. E.
name: van Tiggelen, B. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: After exactly half a century of Anderson localization, the subject is more alive than ever. Direct observation of Anderson localization of electrons was always hampered by interactions and finite temperatures. Yet, many theoretical breakthroughs were made, highlighted by finite-size scaling, the self-consistent theory and the numerical solution of the Anderson tight-binding model. Theoretical understanding is based on simplified models or approximations and comparison with experiment is crucial. Despite a wealth of new experimental data, with microwaves, light, ultrasound and cold atoms, many questions remain, especially for three dimensions. Here we report the first observation of sound localization in a random three-dimensional elastic network. We study the time-dependent transmission below the mobility edge, and report ``transverse localization'' in three dimensions, which has never been observed previously with any wave. The data are well described by the self-consistent theory of localization. The transmission reveals non-Gaussian statistics, consistent with theoretical predictions.
description: Final published version, 5 pages, 4 figures
Treatment of electron viscosity in quantum conductance
Creators: name: Jung, J.
name: Bokes, P.
name: Godby, R. W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In a recent paper Sai {\it et al.} [1] identified a correction $R^{dyn}$ to the DC conductance of nanoscale junctions arising from dynamical exchange-correlation ($XC$) effects within time-dependent density functional theory. This quantity contributes to the total resistance through $R=R_{s}+R^{dyn}$ where $R_{s}$ is the resistance evaluated in the absence of dynamical $XC$ effects. In this Comment we show that the numerical estimation of $R^{dyn}$ in example systems of the type they considered should be considerably reduced, once a more appropriate form for the shear electron viscosity $η$ is used.
description: Comment on ``Dynamical corrections to the DFT-LDA electron conductance in nanoscale systems'', 10.1103/PhysRevLett.94.186810; arXiv:cond-mat/0411098v2
Constraining vectors and axial-vectors in walking technicolour by a holographic principle
Creators: name: Dietrich, Dennis D.
name: Kouvaris, Chris
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use a holographic principle to study the low-energy spectrum of walking technicolour models. In particular, we predict the masses of the axial vectors as well as the decay constants of vectors and axial vectors as functions of the mass of the techni-rho. Given that there are very few nonperturbative techniques to study strongly coupled theories, using holography might provide us with insight into how to constrain the parameters of the low-energy effective action of walking technicolour models. We also compare our results with findings from other setups.
description: 10 pages, 3 figures, v2: references added, typos removed, accepted for publication in PRD
Bulk viscosity and r-modes of neutron stars
Creators: name: Chatterjee, Debarati
name: Bandyopadhyay, Debades
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The bulk viscosity due to the non-leptonic process involving hyperons in $K^-$ condensed matter is discussed here. We find that the bulk viscosity is modified in a superconducting phase. Further, we demonstrate how the exotic bulk viscosity coefficient influences $r$-modes of neutron stars which might be sources of detectable gravitational waves.
description: 4 page, 2 figures; presented in the Quark Matter 2008 held in Jaipur, India from 4-10 February, 2008; to be published in J. Phys. G
Tracking and Vertexing with a Thin CMOS Pixel Beam Telescope
Creators: name: Battaglia, Marco
name: Bisello, Dario
name: Bolla, Gino
name: Bortoletto, Daniela
name: Contarato, Devis
name: Franchino, Silvia
name: Giubilato, Piero
name: Glesener, Lindsay
name: Hooberman, Benjamin
name: Pantano, Devis
Publisher: name: arXiv
Year: 2008
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present results of a study of charged particle track and vertex reconstruction with a beam telescope made of four layers of 50 micron-thin CMOS monolithic pixel sensors using the 120 GeV protons at the FNAL Meson Test Beam Facility. We compare our results to the performance requirements of a future e+e- linear collider in terms of particle track extrapolation and vertex reconstruction accuracies.
description: 9 pages, 7 figures submitted to Nuclear Instruments and Methods A
Star Formation in Bulges from GALEX
Creators: name: Yi, Sukyoung K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Early-type galaxies, considered as large bulges, have been found to have had a much-more-than-boring star formation history in recent years by the UV satellite GALEX. The most massive bulges, brightest cluster galaxies, appear to be relatively free of young stars. But smaller bulges, normal ellipticals and lenticulars, often show unambiguous sign of recent star formation in their UV flux. The fraction of such UV-bright bulges in the volume-limited sample climbs up to the staggering 30%. The bulges of spirals follow similar trends but a larger fraction showing signs of current and recent star formation. The implication on the bulge formation and evolution is discussed.
description: 7pages 4figures IAU symposium 245 (Oxford) Reference mistake fixed
title:  Estimating Bedrock Shear Wave Velocity at VSAP, Paducah, Kentucky, Using Ambient Noise
Creators: name: Rogers, Russel
Publisher: name: University of Kentucky Libraries
Year: 2023
Subjects: classificationCode: 1.5
subject: FOS: Earth and related environmental sciences

description: Due to the nature of the Mississippi Embayment region and its vicinity to the New Madrid Seismic Zone, earthquake ground-motion site effects are potential hazards and quantifying the associated hazard is a necessary step for public safety. Measuring the Vs contrast between bedrock and overlying soil layers is necessary for site effect evaluation. Various methodologies for investigating shear wave velocity (Vs) profiles have been implemented in the Mississippi Embayment. However, these previous studies provided a wide range of bedrock Vs. In this study, microtremor array measurements, utilizing ambient background noise, were used to provide an additional estimate of the bedrock Vs at the Vertical Seismic Array at Paducah (VSAP) from the recordings of 17 SmartSolo 5 Hz, 3 component geophones arranged in a nested triangle array. H/V spectral ratios were also calculated. Geopsy was then used to produce dispersion curves via MSPAC and FK analyses, which were then inverted using Dinver. A joint inversion was also performed using the fundamental frequency (f0) and the dispersion curves from the MSPAC and FK analyses. Using misfits and the bounded Vs in velocity profiles as measures of model reliability, modeled shear wave velocity (Vs) profiles were developed from the surface to the limestone bedrock at 100 m depth. Bedrock Vs of the Warsaw limestone was estimated using three different preliminary Vs models from previous studies for the dispersion curve inversions. Allowing the Vs of each layer to become bounded by low misfit models resulted in three different Vs profiles. Bedrock Vs of approximately 2600 m/s, 2650 m/s and 2850 m/s were obtained. The variability of these new measurements is smaller than previous studies and suggests higher confidence that the bedrock Vs is faster than 2500 m/s.
description: 2023 Russel Rogers
Quantum gravity phenomenology via Lorentz violations
Creators: name: Liberati, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The search for a quantum theory of gravity has been one of the main aims of theoretical physics for many years by now. However the efforts in this direction have been often hampered by the lack of experimental/observational tests able to select among, or at least constrain, the numerous quantum gravity models proposed so far. This situation has changed in the last decade thanks to the realization that some QG inspired violations of Lorentz symmetry could be constrained using current experiments and observations. This study it is not only allowing us to test at higher and higher energies a fundamental symmetry of spacetime but it is also providing us with hints and perspectives about the fundamental nature of gravity.
description: 21 pages, 1 figure. Some overlap with arXiv:astro-ph/0505267. Proceedings contribution to invited seminar talk given at the School on Particle Physics, Gravity and Cosmology, Dubrovnik, 21 Aug - 2 Sep 2006, eds. L. Bonora, S. Fajfer, R. Iengo, D. Klabucar, S. Pallua, I. Picek. Accepted for publication on PoS
Comparative Analysis of the Observational Properties of Fast Radio Bursts at the Frequencies of 111 and 1400 MHz
Creators: name: Fedorova, V. A.
name: Rodin, A. E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A comparative analysis of the observational characteristics of fast radio bursts at the frequencies 111 and 1400 MHz is carried out. The distributions of radio bursts by the dispersion measure are constructed. At both frequencies, they are described by a lognormal distribution with the parameters $μ=6.2$ $σ= 0.7$. The dependence $τ_{sc}(DM)$ of the scattering value on the dispersion measure at 111 MHz and 1400 MHz is also constructed. This dependence is fundamentally different from the dependence for pulsars. A comparative analysis of the relationship between the scattering of pulses and the dispersion measure at 1400 MHz and 111 MHz showed that for both frequencies it has the form $τ_{sc}(DM)\sim DM^k$, where $k = 0.49 \pm 0.18$ and $k = 0.43 \pm 0.15$ for the frequencies 111 and 1400 MHz, respectively. The obtained dependence is explained within the framework of the assumption of the extragalactic occurrence of fast radio bursts and an almost uniform distribution of matter in intergalactic space. From the dependence $τ_{sc}(DM)$ a total estimate of the contribution to the matter of the halo of our and the host galaxy to $DM$ is obtained $DM_{halo} + \frac{DM_{host}}{1+z}\approx 60\;{\rm pc/cm}^3$. Based on the LogN - LogS dependence, the average spectral index of radio bursts is derived $α= - 0.63 \pm 0.20$ provided that the statistical properties of these samples at 111 and 1400 MHz are the same.
description: 47 pages, 25 figures, 3 tables
A Study of e+e- -> H0A0 Production and the Constraint on Dark Matter Density
Creators: name: Battaglia, Marco
name: Kelley, Nicole
name: Hooberman, Benjamin
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This paper reports the results of a study of the e+e- -> H0A0 process at 1 TeV performed on fully simulated and reconstructed events. The estimated accuracies on the heavy Higgs boson masses, widths and decay branching fractions are discussed in relation to the study of Supersymmetric Dark Matter.
description: 5 pages, 4 figures, submitted to Phys. Rev. D
SUN-PROTECTIVE BEHAVIORS IN PATIENTS WITH MELASMA
Creators: name: Conahan, Laura Jane
Publisher: name: Zenodo
Year: 2019

description: Sun exposure is the greatest triggering factor in melasma, yet few studies investigate how patients with melasma practice sun-protective behaviors such as avoiding sun exposure, seeking shade, and using sunscreen correctly. The purpose of this project was to gain perspective about barriers to sun-protective behaviors of patients with melasma. A mixed-methods design was utilized to investigate sun-protective behaviors through a demographic questionnaire, Sun Exposure and Protection Index (SEPI) survey, and semi-structured interviews. Twenty-one participants completed the SEPI survey and 13 participants were interviewed. The majority of participants were 25-34 years (38%), Caucasian/White (57%), and had melasma for 3 or more years (84%). When asked how often they thought about their melasma, participants answered “always” (43%) and “often” (38%) most frequently. Regarding sunscreen reapplication, only five participants (23%) reapplied sunscreen every 2 hours as recommended. As time spent thinking about melasma increased, sunscreen SPF increased (rs = 0.44, p = .044). As sunscreen reapplication increased, SEPI II Scores decreased (rs = -0.47, p = .030). Interviews revealed a lack of knowledge and perceived risk regarding incidental sun exposures and proper sunscreen use. This study was limited by its small sample size of all female and mainly white, young adult participants which may be difficult to generalize to other populations. Patients with melasma would benefit from education that discusses how to iv properly choose, apply, and reapply sunscreen and how to recognize and limit incidental sun exposure.
D4.2.1 Review of the knowledge of the target species at the selected Natura 2000 sites
Creators: name: Miočić-Stošić, Jure
name: Pleslić, Grgur
name: Partnership, The ECOSS
Publisher: name: Zenodo
Year: 2020

description: This deliverable aims to summarize currently available knowledge of target species at the six Natura 2000 sites in the Adriatic Sea that were selected as case studies within the project ECOSS. The sites included are: Trezze San Pietro e Bardelli (IT3330009), Delta del Po (IT3270017 and IT3270023; two sites geographically overlapping and thus here combined), Tegnùe di Chioggia (IT3250047), Cres-Lošinj (HR3000161), Vis (HR3000469) and Malostonski Bay (HR4000015).
description: ECOSS project (Observing System in the Adriatic Sea: oceanographic observations for biodiversity) is an EU 2014–2020 Interreg V-A Italy-Croatia CBC programme ID number 10042301
Influences of various factors on half-cell potential testing
Creators: name: Sirisil Kalayanakoul
name: Sirapong Suwanpunjasil
name: Tada Yocapajorn
name: Wanchai Yodsudjai
Publisher: name: Faculty of Engineering, Khon Kaen Univeristy
Year: 2012
Subjects: Reinforced Concrete, half-cell potential,steel corrosion,concrete structure inspection

description: 4, 39, KKU Engineering Journal
Electrical Resistivity of Poly(Vinyl Alcohol) Nanofibrous Structures Filled with Carbon Black, Self-Dispersible Carbon Black and Carbon Nanotube
Creators: name: Wipawan Wongdao
name: Danwanichakul, Panu
Publisher: name: Faculty of Engineering, Khon Kaen Univeristy
Year: 2012
Subjects: Nanofiber, Poly (vinyl alcohol), Carbon black, Self-dispersible carbon black and carbon nanotube

description: 3, 39, KKU Engineering Journal
Non-Hermitian spectra and Anderson localization
Creators: name: Molinari, Luca Guido
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences
subject: 15A15; 15A52

description: The spectrum of exponents of the transfer matrix provides the localization lengths of Anderson's model for a particle in a lattice with disordered potential. I show that a duality identity for determinants and Jensen's identity for subharmonic functions, give a formula for the spectrum in terms of eigenvalues of the Hamiltonian with non-Hermitian boundary conditions. The formula is exact; it involves an average over a Bloch phase, rather than disorder. A preliminary investigation of non-Hermitian spectra of Anderson's model in D=1,2 and on the smallest exponent is presented.
description: 8 pages, 10 figures
Maximizing the Neel temperature of fermions in a simple-cubic optical lattice
Creators: name: Mathy, C. J. M.
name: Huse, David A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: For a simple-cubic optical lattice with lattice spacing d, occupied by two species of fermionic atoms of mass m that interact repulsively, we ask what conditions maximize the Neel temperature in the Mott insulating phase at density one atom per site, with equal numbers of the two species. This maximum occurs near the edge of the regime where the system is well-approximated by the usual Hubbard model. The correction to the Hubbard-model approximation that produces a "direct" ferromagnetic interaction between atoms in nearest-neighbor Wannier orbitals is the leading term that limits how high the Neel temperature can be made.
description: 4 pages, 3 figures, minor changes. A new paper, arXiv:0903.0108, expands on this paper and contains most of its results
Contact interactions in low scale string models with intersecting $D6$-branes
Creators: name: Chemtob, Marc
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We evaluate the tree level four fermion string amplitudes in the TeV string mass scale models with intersecting $D6$-branes. The coefficient functions of contact interactions subsuming the contributions of string Regge resonance and winding mode excitations are obtained by subtracting out the contributions from the string massless and massive momentum modes. Numerical applications are developed for the Standard Model like solution of Cremades, Ibanez, and Marchesano for a toroidal orientifold with four intersecting $D6$-brane stacks. The chirality conserving contact interactions of the quarks and leptons are considered in applications to high energy collider and flavor changing neutral current phenomenology. The two main free parameters consist of the string and compactification mass scales, $ m_s$ and $ M_c$. Useful constraints on these parameters are derived from predictions for the Bhabha scattering differential cross section and for the observables associated to the mass shifts of the neutral meson systems $ K-\bar K, B-\bar B, D-\bar D$ and the lepton number violating three-body leptonic decays of the charged leptons $μ$ and $ τ$.
description: 34 pages, 7 figures
Danaë founder of Ardea. Notes for a research
Creators: name: Bassani, Maddalena
Publisher: name: La Rivista di Engramma
Year: 2020
Subjects: Danae
Ardea
Iuno
Livia
Augustus

description: The article aims at analysing the role of Danaë in the Latin town of Ardea and in the Latium vetus starting from a ‘local’ variation of the Greek myth. In particular, thanks to an in-depth reading of specific Latin sources and to a reconsideration of the archaeological remains in Ardea, some hypotheses about the cultural and religious context in which the Latin myth of Danaë took place are proposed. The ‘westerner version’ of the myth of Danaë could be emphasized during the Hellenistic phase with new semantic meanings and it could be reused in the Augustan age for specific ‘dynastic’ purposes.
Harmonic oscillator chains as Wigner Quantum Systems: periodic and fixed wall boundary conditions in gl(1|n) solutions
Creators: name: Lievens, S.
name: Stoilova, N. I.
name: Van der Jeugt, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe a quantum system consisting of a one-dimensional linear chain of n identical harmonic oscillators coupled by a nearest neighbor interaction. Two boundary conditions are taken into account: periodic boundary conditions (where the nth oscillator is coupled back to the first oscillator) and fixed wall boundary conditions (where the first oscillator and the $n$th oscillator are coupled to a fixed wall). The two systems are characterized by their Hamiltonian. For their quantization, we treat these systems as Wigner Quantum Systems (WQS), allowing more solutions than just the canonical quantization solution. In this WQS approach, one is led to certain algebraic relations for operators (which are linear combinations of position and momentum operators) that should satisfy triple relations involving commutators and anti-commutators. These triple relations have a solution in terms of the Lie superalgebra gl(1|n). We study a particular class of gl(1|n) representations V(p), the so-called ladder representations. For these representations, we determine the spectrum of the Hamiltonian and of the position operators (for both types of boundary conditions). Furthermore, we compute the eigenvectors of the position operators in terms of stationary states. This leads to explicit expressions for position probabilities of the n oscillators in the chain. An analysis of the plots of such position probability distributions gives rise to some interesting observations. In particular, the physical behavior of the system as a WQS is very much in agreement with what one would expect from the classical case, except that all physical quantities (energy, position and momentum of each oscillator) have a finite spectrum.
Detection model based on representation of quantum particles by classical random fields: Born's rule and beyond
Creators: name: Khrennikov, Andrei
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently a new attempt to go beyond quantum mechanics (QM) was presented in the form of so called prequantum classical statistical field theory (PCSFT). Its main experimental prediction is violation of Born's rule which provides only an approximative description of real probabilities. We expect that it will be possible to design numerous experiments demonstrating violation of Born's rule. Moreover, recently the first experimental evidence of violation was found in the triple slits interference experiment, see \cite{WWW}. Although this experimental test was motivated by another prequantum model, it can be definitely considered as at least preliminary confirmation of the main prediction of PCSFT. In our approach quantum particles are just symbolic representations of "prequantum random fields," e.g., "electron-field" or "neutron-field"; photon is associated with classical random electromagnetic field. Such prequantum fields fluctuate on time and space scales which are essentially finer than scales of QM, cf. `t Hooft's attempt to go beyond QM \cite{H1}--\cite{TH2}. In this paper we elaborate a detection model in the PCSFT-framework. In this model classical random fields (corresponding to "quantum particles") interact with detectors inducing probabilities which match with Born's rule only approximately. Thus QM arises from PCSFT as an approximative theory. New tests of violation of Born's rule are proposed.
description: Relation with recent experiment on violation of Born's rule in the triple slit experiment is discussed; new experimental test which might confirm violation of Born's rule are presented (double stochsticity test and interference magnitude test); the problem of "double clicks" is discussed
Cluster structures in Oxygen isotopes
Creators: name: Furutachi, N.
name: kimura, M.
name: Doté, A.
name: Kanada-En'yo, Y.
name: oryu, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Cluster structure of 16O,18O and 20O is investigated by the antisymmettrized molecular dynamics (AMD) plus generator coordinate method (GCM). We have found the K^π=0$_2^+$ and 0$_1^-$ rotational bands of 18O that have the prominent 14C+αcluster structure. Clustering systematics becomes richer in 20O. We suggest the K^π=0$_2^+$ band that is the mixture of the 12C+α+4n and 14C+6He cluster structures, and the K^π=0$_1^-$ band that has the 14C+6He cluster structure. The K^π=0$_3^+$ and 0$_2^-$ bands that have the prominent 16C+αcluster structure are also found.
description: 9pages, 9figures
Bell-state preparation for electron spins in a semiconductor double quantum dot
Creators: name: Roloff, Robert
name: Pötz, Walter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A robust scheme for state preparation and state trapping for the spins of two electrons in a semiconductor double quantum dot is presented. The system is modeled by two spins coupled to two independent bosonic reservoirs. Decoherence effects due to this environment are minimized by application of optimized control fields which make the target state to the ground state of the isolated driven spin system. We show that stable spin entanglement with respect to pure dephasing is possible. Specifically, we demonstrate state trapping in a maximally entangled state (Bell state) in the presence of decoherence.
description: 9 pages, 4 figures
Pion in the Holographic Model with 5D Yang-Mills Fields
Creators: name: Grigoryan, Hovhannes R.
name: Radyushkin, Anatoly V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study pion in the holographic model of Hirn and Sanz which contains two Yang-Mills fields defined in the background of the sliced AdS space. The infrared boundary conditions imposed on these fields generate the spontaneous breaking of the chiral symmetry down to its vector subgroup. Within the framework of this model, we get an analytic expression for the pion form factor and a compact result for its radius. We also extend the holographic model to include Chern-Simons term which is required to reproduce the appropriate axial anomaly of QCD. As a result, we calculate the anomalous form factor of the pion and predict its Q^2-slope for the kinematics when one of the photons is almost on-shell. We also observe that the anomalous form factor with one real and one virtual photon is given by the same analytic expression as the electromagnetic form factor of a charged pion. One of the advantages of the present model is that it does not require an infrared boundary counterterm to correctly reproduce the anomaly of QCD.
description: 10 pages, 2 figures
CONSERVADOR Page Like Network
Creators: name: Lerner, Celina
Publisher: name: Zenodo
Year: 2019
Subjects: Facebook, social media, Brazilian Politics, conservatism

description: Interactive version of Page Like Network of Brazilian conservative Facebook Pages.

Instructions:

> Download the zip file

> Unzip the folder

> Open the file: PAGE_LIKE_NETWORK.html with Mozilla Firefox

Obs: As an html file, it can be read by any browser, but Mozilla Firefox is recommended for a better experience.

Form: Lerner, Celina. "A mentalidade conservadora no Brasil: uma análise da interação política em redes sociais digitais" - Doctoral Thesis, PCHS/UFABC ,2019
Towards Goal-Oriented Semantic Signal Processing: Applications and Future Challenges
Creators: name: Kalfa, Mert
name: Gok, Mehmetcan
name: Atalik, Arda
name: Tegin, Busra
name: Duman, Tolga M.
name: Arikan, Orhan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Advances in machine learning technology have enabled real-time extraction of semantic information in signals which can revolutionize signal processing techniques and improve their performance significantly for the next generation of applications. With the objective of a concrete representation and efficient processing of the semantic information, we propose and demonstrate a formal graph-based semantic language and a goal filtering method that enables goal-oriented signal processing. The proposed semantic signal processing framework can easily be tailored for specific applications and goals in a diverse range of signal processing applications. To illustrate its wide range of applicability, we investigate several use cases and provide details on how the proposed goal-oriented semantic signal processing framework can be customized. We also investigate and propose techniques for communications where sensor data is semantically processed and semantic information is exchanged across a sensor network.
description: 44 pages, 29 figures, 3 tables. This preprint will be published in the Digital Signal Processing Journal's 30th anniversary issue on Future Signal Processing
The Formation of Slow-Massive-Wide Jets
Creators: name: Soker, Noam
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I propose a model for the formation of slow-massive-wide (SMW) jets by accretion disks around compact objects. This study is motivated by claims for the existence of SMW jets in some astrophysical objects such as in planetary nebulae (PNs) and in some active galactic nuclei in galaxies and in cooling flow clusters. In this model the energy still comes from accretion onto a compact object. The accretion disk launches two opposite jets with velocity of the order of the escape velocity from the accreting object and with mass outflow rate of ~1-20% of the accretion rate as in most popular models for jet launching; in the present model these are termed fast-first-stage (FFS) jets. However, the FFS jets encounter surrounding gas that originates in the mass accretion process, and are terminated by strong shocks close to their origin. Two hot bubbles are formed. These bubbles accelerate the surrounding gas to form two SMW jets that are more massive and slower than the FFS jets. There are two conditions for this mechanism to work. Firstly, the surrounding gas should be massive enough to block the free expansion of the FFS jets. Most efficiently this condition is achieved when the surrounding gas is replenished. Secondly, the radiative energy losses must be small.
description: Accepted by New Astronomy
Search for gamma-ray line signals around the black hole at the galactic center with DAMPE observation
Creators: name: Liu, Tian-Ci
name: Cheng, Ji-Gui
name: Liang, Yun-Feng
name: Liang, En-Wei
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The adiabatic growth of a black hole (BH) may enhance the dark matter (DM) density surrounding it, causing a spike in the DM density profile. The spike around the supermassive BH at the center of the Milky Way may lead to a dramatic enhancement of the gamma-ray flux of DM annihilation from the galactic center (GC). In this work, we analyze the gamma-ray data of the innermost region (i.e., the inner 1$^\circ$) of the GC to search for potential line-like signals from the BH spike. Such line-like signals could be generated in the process of DM particles annihilating into double photons. We adopt the gamma-ray data from the Dark Matter Particle Explorer (DAMPE). Although the DAMPE has a much smaller effective area than the Fermi-LAT, the gamma-ray line search can benefit from its unprecedented high energy resolution. No significant line-like signals are found in our analysis. We derive upper limits on the cross section of the annihilation based on this non-detection. We find that despite the DAMPE's small effective area for photon detection, we can still place strong constraints on the cross section ($\left\lesssim10^{-27}\,{\rm cm^3\,s^{-1}}$) in the spike scenario due to the very bright model-expected flux from the spike. Our results indicate that either DM does not annihilate primarily through the $γγ$ channel in the mass range we considered or no sharp density spike is present at the GC.
description: 10 pages, 7 figures
Rates, Progenitors and Cosmic Mix of Type Ia Supernovae
Creators: name: Greggio, Laura
name: Renzini, Alvio
name: Daddi, Emanuele
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Following an episode of star formation, Type Ia supernova events occur over an extended period of time, following a distribution of delay times (DDT). We critically discuss some empirically-based DDT functions that have been proposed in recent years, some favoring very early (prompt) events, other very late (tardy) ones, and therefore being mutually exclusive. We point out that in both cases the derived DDT functions are affected by dubious assumptions, and therefore there is currently no ground for claiming either a DDT strongly peaked at early times, or at late ones. Theoretical DDT functions are known to accommodate both prompt as well as late SNIa events, and can account for all available observational constraints. Recent observational evidence exists that both single degenerate and double degenerate precursors may be able of producing SNIa events. We then explore on the basis of plausible theoretical models the possible variation with cosmic time of the mix between the events produced by the two different channels, which in principle could lead to systematics effects on the SNIa properties with redshift.
description: 9 pages, 7 figures, submitted to MNRAS March 20, accepted May 9, 2008. New version is identical to previous one apart from a "Note added in proof"
Ein Navigationssystem durch Theorien der internationalen Beziehungen
Creators: name: Fidermuc Maler, Zrinka Katarina
Publisher: name: KULT_online
Year: 2006

description: Dieser "Theorie-Sammelband mit Lehrbuchcharakter" (S. 14) hat den Mangel an einem umfassenden deutschsprachigen Lehrbuch für Studierende der Internationalen Beziehungen (IB) behoben. Er stellt ein Kompendium dar und "versteht sich als eine Art Landkarte, auf der sich die 'Koordinaten' des Zustands gegenwärtiger Theorien ablesen lassen" (S. 15).
 Ein gelungenes Novum ist die Gliederung des Buches nach ReferenztheoretikerInnen und nicht nach gängigen Paradigmen sowie die strikte und konsequente didaktisch-methodologische Aufarbeitung des Themas. Die Beiträge bauen logisch aufeinander auf, können aber trotzdem selbständig gelesen werden. Damit ist den HerausgeberInnen gelungen, ein leserfreundliches Lehrbuch der Internationalen Beziehungen auf den Markt zu bringen, das nichts an fachlicher Begrifflichkeit und wissenschaftlicher Stringenz aufgeben musste, um - obwohl es sich primär an Studierende im Grundstudium richtet - auch für WissenschaftlerInnen, PraktikerInnen oder auch Laien von Interesse zu sein.
description: KULT_online, Nr. 08 (2006): KULT_online 08 (2006)
Impact of Magnetic Braking on High-mass Close Binary Formation
Creators: name: Harada, Naoto
name: Hirano, Shingo
name: Machida, Masahiro N.
name: Hosokawa, Takashi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Combining numerical simulations and analytical modeling, we investigate whether close binary systems form by the effect of magnetic braking. Using magnetohydrodynamics simulations, we calculate the cloud evolution with a sink, for which we do not resolve the binary system or binary orbital motion to realize long-term time integration. Then, we analytically estimate the binary separation using the accreted mass and angular momentum obtained from the simulation. In unmagnetized clouds, wide binary systems with separations of >100 au form, in which the binary separation continues to increase during the main accretion phase. In contrast, close binary systems with separations of <100 au can form in magnetized clouds. Since the efficiency of magnetic braking strongly depends on both the strength and configuration of the magnetic field, they also affect the formation conditions of a close binary. In addition, the protostellar outflow has a negative impact on close binary formation, especially when the rotation axis of the prestellar cloud is aligned with the global magnetic field. The outflow interrupts the accretion of gas with small angular momentum, which is expelled from the cloud, while gas with large angular momentum preferentially falls from the side of the outflow onto the binary system and widens the binary separation. This study shows that a cloud with a magnetic field that is not parallel to the rotation axis is a favorable environment for the formation of close binary systems.
description: Accepted for publication in MNRAS
Ein linguistisches Überraschungsei
Creators: name: Steinseifer, Martin
Publisher: name: KULT_online
Year: 2006

description: Hartmut Stöckls Arbeit verfolgt das Ziel, Bilder als Gegenstand einer "multimodal, pragmatisch und kognitiv orientierten Textlinguistik" zu etablieren. Bilder werden einerseits als potentiell eigenständige Texte konzipiert, andererseits gilt jedoch den Sprache-Bild-Bezügen in massenmedialen Texten die besondere Aufmerksamkeit Stöckls. Den Fluchtpunkt der detaillierten kognitions- sowie texttheoretischen Überlegungen und der typologisierenden Analysen zahlreicher Beispiele bildet schließlich die kreative Verknüpfung von sprachlichen - besonders phraseologischen - und "materiellen" Bildern. Diese "explorative Semiose" wird anhand von Werbeanzeigen untersucht.
description: KULT_online, Nr. 08 (2006): KULT_online 08 (2006)
Aktuelle Daten zur Vitalität der slavischen Sprachen in Deutschland
Creators: name: Schuster, Wilma
Publisher: name: KULT_online
Year: 2006

description: Die vorliegende Dissertation aus dem Bereich der slavischen Sprachwissenschaft, die einen Beitrag zur Minderheitenforschung in Deutschland leistet, untersucht aus sprachsoziologischer Sicht anhand von 486 Probanden das Sprachverhalten slavophoner Einwanderer in Deutschland, insbesondere den Gebrauch ihrer slavischen Sprache im deutschsprachigen Umfeld in Abhängigkeit von außersprachlichen Faktoren. Zudem wertet der Autor vor dem Hintergrund der Vitalitätsforschung die in einer empirischen deutschlandweiten Erhebung gewonnenen Daten mit Blick auf die Vitalität der slavischen Sprachen in Deutschland komparativ aus.
description: KULT_online, Nr. 09 (2006): KULT_online 09 (2006)
Plädoyer für das Vergessen
Creators: name: Rupp, Jan
Publisher: name: KULT_online
Year: 2006

description: Die Studie von Kai Behrens sieht in der Literatur eine "produktive Eigenlogik ästhetischen Vergessens" (S. 11) am Werk. Diese wird mit dem Neologismus ‚Obliviologie‘ versehen und anhand ausgewählter literaturtheoretischer Konzepte des 20. Jahrhunderts als durchgehendes Moment literarischer Kommunikation profiliert. Mit der Rolle des Vergessens in der Literatur wird die Würdigung eines lange vernachlässigten Aspekts der gegenwärtigen Debatten über ‚Kultur und Gedächtnis‘ weiter vorangetrieben.
description: KULT_online, Nr. 09 (2006): KULT_online 09 (2006)
Aus der Lücke entspringt der Raum. Ein Sammelband widmet sich den Wechselwirkungen von Räumen, Körpern und Medien
Creators: name: Priwitzer, Jens
Publisher: name: KULT_online
Year: 2019

description: Der von Jörg Dünne, Hermann Doetsch und Roger Lüdeke herausgegebene Sammelband versucht, die aktuelle kulturwissenschaftliche Beschäftigung mit dem Raum medientheoretisch zu fundieren. Die Autoren verstehen die Konstitution von Raum als medial bedingt und historisch variabel. In exemplarischen Einzelanalysen zeigen sie auf, warum mediale Gefüge einen spezifisch strukturierten Raum erzeugen und wie sich das Verhältnis von Raum, Körper und Medien seit dem Mittelalter gewandelt hat.
description: KULT_online, Nr. 09 (2006): KULT_online 09 (2006)