cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Classical echoes of quantum boundary conditions
Creators: name: Angelone, Giuliano
name: Facchi, Paolo
name: Ligabò, Marilena
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a non-relativistic particle in a one-dimensional box with all possible quantum boundary conditions that make the kinetic-energy operator selfadjoint. We determine the Wigner functions of the corresponding eigenfunctions and analyze in detail their classical limit in the high-energy regime. We show that the quantum boundary conditions split into two classes: all local and regular boundary conditions collapse to the same classical boundary condition, while singular non-local boundary conditions slightly persist in the classical limit.
description: 25 pages, 12 figures
Fast algorithms to approximate the position-dependent point spread function responses in radio interferometric wide-field imaging
Creators: name: Atemkeng, M.
name: Smirnov, O.
name: Tasse, C.
name: Foster, G.
name: Makhathini, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The desire for wide-field of view, large fractional bandwidth, high sensitivity, high spectral and temporal resolution has driven radio interferometry to the point of big data revolution where the data is represented in at least three dimensions with an axis for spectral windows, baselines, sources, etc; where each axis has its own set of sub-dimensions. The cost associated with storing and handling these data is very large, and therefore several techniques to compress interferometric data and/or speed up processing have been investigated. Unfortunately, averaging-based methods for visibility data compression are detrimental to the data fidelity, since the point spread function (PSF) is position-dependent, i.e. distorted and attenuated as a function of distance from the phase centre. The position dependence of the PSF becomes more severe, requiring more PSF computations for wide-field imaging. Deconvolution algorithms must take the distortion into account in the major and minor cycles to properly subtract the PSF and recover the fidelity of the image. This approach is expensive in computation since at each deconvolution iteration a distorted PSF must be computed. We present two algorithms that approximate these position-dependent PSFs with fewer computations. The first algorithm approximates the position-dependent PSFs in the $uv$-plane and the second algorithm approximates the position-dependent PSFs in the image-plane. The proposed algorithms are validated using simulated data from the MeerKAT telescope.
description: 13 PAGES
Hansenocaris undetermined
Creators: name: Olesen, Jørgen
name: Grygier, Mark J.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Maxillopoda
Hansenocarididae
Hansenocaris
Hansenocaris undetermined

description: Y-nauplius Type AP
Figs 2, 17L
Undescribed form-taxa of lecithotrophic y-larvae – Grygier et al. 2019 pars: 1228, fig. 3e.
Material examined
JAPAN – Okinawa, Sesoko I., laboratory pier, 26°38ʹ09.4ʺ N, 127°51ʹ55.2ʺ E • 1 LSN; 1991–2005 (Tables 1 and S1).
Description
LAST-STAGE NAUPLIUS (LSN). Lecithotrophic. Body shape not examined in dorso-ventral view, but cephalic shield apparently ovate with sharp discontinuity leading into trunk. In lateral view, trunk axis downturned 40° with respect to cephalic axis. Length 300 µm (lateral view of mounted exuvia) (without dorso-caudal spine), greatest width unknown, greatest dorso-ventral thickness ca 110 µm. Labrum strongly produced and divided into facets by cuticular ridges, with row of three successively longer spines on distal midline. Caudal end truncate, terminating in robust, conical, ca 30 µm long dorso-caudal spine, its axis upturned 35° relative to trunk axis. Thick, triangular furcal spines situated ventrally far from dorso-caudal spine, ca 5–10 µm long.
CYPRID VIEWED THROUGH CUTICLE OF LSN. No live specimen examined.
Identification and variation
Recognizable by its protruding labrum with three spines. This morphospecies resembles Type AF but is larger, slightly less stout and has a differently armed labrum (three spines instead of a single needle-like extension).
Distribution
Japan (Sesoko Island, Okinawa).
description: Published as part of Olesen, Jørgen & Grygier, Mark J., 2024, Taxonomic diversity of marine planktonic ' y-larvae' (Crustacea: Facetotecta) from a coral reef hotspot locality (Japan, Okinawa), with a key to y-nauplii, pp. 1-90 in European Journal of Taxonomy 929 (1) on pages 44-46, DOI: 10.5852/ejt.2024.929.2479, http://zenodo.org/record/10876286
Transverse oscillation of a coronal loop induced by a flare-related jet
Creators: name: Dai, J.
name: Zhang, Q. M.
name: Su, Y. N.
name: Ji, H. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this work, we report our multi-wavelength observations of the transverse oscillation of a large scale coronal loop with a length of 350 Mm. The oscillation was induced by a blowout coronal jet, which was related to a circular ribbon flare (CRF) in AR 12434 on 2015 October 16. We aim to determine the physical parameters in the coronal loop, including the Alfven speed and magnetic field strength. The jet induced kink oscillation was observed in extreme-ultraviolet (EUV) wavelengths by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO). Line of sight magnetograms were observed by the Helioseismic and Magnetic Imager (HMI) on board SDO. We took several slices along the loop to assemble time-distance diagrams, and used an exponentially decaying sine function to fit the decaying oscillation. The initial amplitude, period, and damping time of kink oscillation were obtained. Coronal seismology of the kink mode was applied to estimate the Alfven speed and magnetic field strength in the oscillating loop. In addition, we measured the magnetic field of the loop through non-linear force free field (NLFFF) modeling using the flux rope insertion method. The oscillation is most pronounced in AIA 171 and 131. The oscillation is almost in phase along the loop with a peak initial amplitude of 13.6 Mm, meaning that the oscillation belong to the fast standing kink mode. The oscillation lasts for 3.5 cycles with an average period of 462 s and average damping time of 976 s. The values of t/P lie in the range of 1.5-2.5. Based on coronal seismology, the Alfven speed in the oscillating loop is estimated to be 1210 km. Two independent methods are applied to calculate the magnetic field strength of the loop, resulting in 30043 G using the coronal seismology and 21123 G using the NLFFF modeling, respectively.
The psychosocial impacts of driving cessation in later life : experiences, coping, and well-being
Creators: name: Walker, Sarah Wendy
Publisher: name: The Australian National University
Year: 2018

description: Older adults may face multiple and often overwhelming losses when they give up driving, creating a need for adjustment (Adler & Rottunda, 2006; M. J. Bauer, Rottunda, & Adler, 2003; Bedard & Kafka, 2008; Bonnel, 1999a; Carp, 1971; Cutler, 1972; Dellinger, Sehgal, Sleet, & Barrett-Connor, 2001; J.A. Kelley-Moore, J.G. Schumacher, E. Kahana, & B. Kahana, 2006; Liddle, Turpin, Carlson, & McKenna, 2008; Shope, 2003; Whitehead, Howie, & Lovell, 2006). Furthermore, driving cessation is related to poorer psychological well-being (Fonda, Wallace, & Herzog, 2001; Marottoli et al., 1997; Ragland, Satariano, & MacLeod, 2005; Windsor, Anstey, Butterworth, Luszcz, & Andrews, 2007). This thesis focuses on the impacts of no longer driving on psychological well-being, among an Australian population aged 65 years and above. Driving cessation literature is reviewed and embedded within the general context of older adult driving research. The Stress-Coping paradigm framework is adopted to better understand poorer well-being in relation to the post-cessation phase of driving within a broad spatial and temporal context. Self-Determination Theory (Deci & Ryan, 2000a, 2000b; Ryan, 2009) and the Assimilative and Accommodative Model of Coping (Brandtstadter & Renner, 1990a, 1992) provide the theoretical foundations from which to examine the driving status-well-being relationship. Questions addressed include: What are the experiences of older adults who give up driving? What is the impact of driving cessation stressors on well-being? Why is driving cessation experienced negatively? And, does coping buffer the effects of driving cessation on well-being? The Cognitive Behaviour Therapy (CBT) (A. T. Beck & Alford, 2009; A. T. Beck, Rush, Shaw, & Emery, 1979; J. S. Beck, 1995) and Acceptance and Commitment Therapy (ACT) (Luoma, et al., 2007) approaches to the conceptualisation and treatment of depressive symptoms generally, and specifically among older ex-drivers, and implications for policy makers are discussed.
Fermi-liquid effects in the Fulde-Ferrell-Larkin-Ovchinnikov state of two-dimensional d-wave superconductors
Creators: name: Vorontsov, Anton B.
name: Graf, Matthias J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the effects of Fermi-liquid interactions on quasi-two-dimensional d-wave superconductors in a magnetic field. The phase diagram of the superconducting state, including the periodic Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state in high magnetic fields, is discussed for different strengths of quasiparticle many-body interactions within Landau's theory of Fermi liquids. Decreasing the Fermi-liquid parameter $F_0^a$ causes the magnetic spin susceptibility to increase, which in turn leads to a reduction of the FFLO phase. It is shown that a negative $F_0^a$ results in a first-order phase transition from the normal to the uniform superconducting state in a finite temperature interval. Finally, we discuss the thermodynamic implications of a first-order phase transition for CeCoIn$_5$.
description: published version; removed direct comparison with experiment for the upper critical field, as required by the referees
Enhanced Geometry Fluctuations in Minkowski and Black Hole Spacetimes
Creators: name: Thompson, R. T.
name: Ford, L. H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We will discuss selected physical effects of spacetime geometry fluctuations, especially the operational signatures of geometry fluctuations and their effects on black hole horizons. The operational signatures which we discuss involve the effects of the fluctuations on images, and include luminosity variations, spectral line broadening and angular blurring. Our main interest will be in black hole horizon fluctuations, especially horizon fluctuations which have been enhanced above the vacuum level by gravitons or matter in squeezed states. We investigate whether these fluctuations can alter the thermal character of a black hole. We find that this thermal character is remarkably robust, and that Hawking's original derivation using transplanckian modes does not seem to be sensitive even to enhanced horizon fluctuations.
description: 13 pages, 3 figures, based on a talk presented at the Peyresq 12 workshop
Solar-assisted bacterial disinfection and removal of contaminants of emerging concern by Fe2+-activated HSO5- vs. S2O82- in drinking water.
Creators: name: Giannakis, Stefanos
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 401199
subject: Environmental engineering not elsewhere classified

description: Pre-proof versionThis research demonstrates the feasibility to enhance solar disinfection (SODIS) treatment by addition of peroxymonosulfate (PMS) and peroxydisulfate (PDS) by the generation of sulfate (and hydroxyl) radicals through different activation routes. The different promoters were i) sunlight irradiation, ii) mild heat (40ºC), and iii) μM amounts of Fe2+, all present during actual field SODIS experiments, or voluntarily added alongside PMS/PDS. In a first approach, the promoters were studied separately, in pairs and finally all together in a combined process (CP). In all the cases, PMS showed a higher efficiency than PDS in E. coli removal, requiring lower concentration and a faster reaction time towards total bacterial inactivation. Therefore, the combined process (Oxidant/Fe2+/Sunlight/40ºC) reached total bacterial inactivation (6-logU) in 30 minutes when PMS was used, while it took twice as long with the PDS. These effects can be further enhanced when PMS with H2O2 is used, and barely 20 minutes are needed for complete bacterial removal. Besides total disinfection, the combined processes were suitable to eliminate micropollutants in μg/L concentration (drugs, pesticides, etc.) during solar treatment. Finally, the efficiency of the treatment methods was successfully tested in a lake water matrix, in a feasibility assay as a potential drinking water treatment method. The economic analysis highly supports the use of these oxidants. Although the use of PMS or PDS increases the cost of treatment, it is not mandatory to add other reagents or external activators; iron is ubiquitous in natural water and can act as activator, while during SODIS sunlight irradiation can provide UV and mild water heating, hence act as an effective disinfection method. Finally, a mechanistic proposal for the combined processes is given, as an overview of the occurring reactions leading to bacterial inactivation.
title: Contributions to a new innovation model: evidence from China
Creators: name: Huang, Biao
Publisher: name: London School of Economics and Political Science (LSE)
Year: 2023

description: Building on a body of new works (Fu, 2015; Greeven, Yip and Wei, 2019), this thesis focuses on three topics as critical parts of a new innovation model. The global digital economy grew to US$31.8 trillion in 2019 (CAICT, 2020) providing the basis for a new innovation model whose core includes ‘Online Interactive Innovation’ [OII]. The first study examines how OII constitutes ‘virtual teamwork’ where employees interact with millions of customers online. OII helps firms to collect and adopt many valuable suggestions from customers to design new functions, update appliances’ operating systems, enhance customers’ experience, file patent applications and increase product shipments. OII has advantages and works across different industries (e.g., Xiaomi in smartphones, Tesla in electrical vehicles and Haier in home appliances) and countries (e.g., India and Spain). Since the individual is the basic unit to create new ideas for innovation (Taylor and Greve, 2006), the second study analyses 2,078 employees joining 3,976 value engineering projects over 6.5 years and explores how education, via the chain relationship, influences employees’ innovation performances measured by comprehensive indicators with triangulation. The third study focuses on how employee stock ownership plans [ESOPs] can activate employees, solve corporate governance problems and improve firms’ innovation performance. Analysing 1,509 Chinese listed firms in 9 years, it finds that ESOP influence firms’ innovation performance positively measured by annual patent application numbers and group effects exist at the level of industry. The impacts of ESOP in knowledge/talent-intensive industries are significant while not for other industries, which determines the different influences of various stock boards and locations of firms’ headquarters. The impact of ESOP on innovation is more significant in SOEs than non-SOEs. These three studies rigorously demonstrate distinct features of innovation that have come to characterize leading practices. These hold implications for practice and future research.
Interaction driven topological phase transitions of hardcore bosons on a two-leg ladder
Creators: name: Parida, Rajashri
name: Padhan, Ashirbad
name: Mishra, Tapan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the topological properties of hardcore bosons possessing nearest-neighbor repulsive interactions on a two-leg ladder. We show that by allowing nearest neighbour dimerized interactions instead of hopping dimerization, the system exhibits topological phases and phase transitions under proper conditions. First, by assuming uniform hopping throughout the ladder, we show that when interaction along the legs are dimerized and the dimerization pattern is different in the legs, a trivial rung-Mott insulator to a topological bond order phase transition occurs as a function of the dimerization strength. However, for a fixed dimerization strength, the system exhibits a topological to trivial phase transition with increase in the rung hopping. A completely different scenario appears when the rung interaction is turned on. We obtain that for a ladder with uniform hopping, the repulsive interaction either turns the topological phase into a trivial rung-Mott insulator or a charge density wave phase. Such topological features are absent when the dimerization pattern in the nearest neighbour interaction is considered to be identical in both the legs of the ladder. We numerically obtain the ground state properties and also show the signatures of topological phase transitions through Thouless charge pumping.
description: 15 pages, 18 figures
Do supersymmetric anti-de Sitter black rings exist?
Creators: name: Kunduri, Hari K.
name: Lucietti, James
name: Reall, Harvey S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We determine the most general near-horizon geometry of a supersymmetric, asymptotically anti-de Sitter, black hole solution of five-dimensional minimal gauged supergravity that admits two rotational symmetries. The near-horizon geometry is that of the supersymmetric, topologically spherical, black hole solution of Chong et al. This proves that regular supersymmetric anti-de Sitter black rings with two rotational symmetries do not exist in minimal supergravity. However, we do find a solution corresponding to the near-horizon geometry of a supersymmetric black ring held in equilibrium by a conical singularity, which suggests that nonsupersymmetric anti-de Sitter black rings may exist but cannot be "balanced" in the supersymmetric limit.
description: Latex, 18 pages, 1 figure. v2: minor changes
Tracking Algorithms for TPCs using Consensus-Based Robust Estimators
Creators: name: Zamora, J. C.
name: Fortino, G. F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: A tracking algorithm based on consensus-robust estimators was implemented for the analysis of experiments with time-projection chambers. In this work, few algorithms beyond RANSAC were successfully tested using experimental data taken with the AT-TPC, ACTAR and TexAT detectors. The present tracking algorithm has a better inlier-outlier detection than the simple sequential RANSAC routine. Modifications in the random sampling and clustering were included to improve the tracking efficiency. Very good results were obtained in all the test cases, in particular for fitting short tracks in the detection limit.
Dirac Relaxation of the Israel Junction Conditions: Unified Randall-Sundrum Brane Theory
Creators: name: Davidson, Aharon
name: Gurwich, Ilya
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Following Dirac's brane variation prescription, the brane must not be deformed during the variation process, or else the linearity of the variation may be lost. Alternatively, the variation of the brane is done, in a special Dirac frame, by varying the bulk coordinate system itself. Imposing appropriate Dirac style boundary conditions on the constrained 'sandwiched' gravitational action, we show how Israel junction conditions get relaxed, but remarkably, all solutions of the original Israel equations are still respected. The Israel junction conditions are traded, in the $Z_2$-symmetric case, for a generalized Regge-Teitelboim type equation (plus a local conservation law), and in the generic $Z_2$-asymmetric case, for a pair of coupled Regge-Teitelboim equations. The Randall-Sundrum model and its derivatives, such as the Dvali-Gabadadze-Porrati and the Collins-Holdom models, get generalized accordingly. Furthermore, Randall-Sundrum and Regge-Teitelboim brane theories appear now to be two different faces of the one and the same unified brane theory. Within the framework of unified brane cosmology, we examine the dark matter/energy interpretation of the effective energy/momentum deviations from General Relativity.
description: 11 PRD pages, 1 figure
First Fruits of the Spitzer Space Telescope: Galactic and Solar System Studies
Creators: name: Werner, M.
name: Fazio, G.
name: Rieke, G.
name: Roellig, T.
name: Watson, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This article provides a brief overview of the Spitzer Space Telescope and discusses its initial scientific results on galactic and solar system science.
description: Review article to appear in slightly different format in Vol.44 of Annual Reviews of Astronomy and Astrophysics, 2006
Eigenspectrum, Chern Numbers and Phase Diagrams of Ultracold Color-orbit Coupled SU(3) Fermions in Optical Lattices
Creators: name: Yau, Man Hon
name: de Melo, C. A. R. Sá
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study ultracold color fermions with three internal states Red, Green and Blue with ${\rm SU(3)}$ symmetry in optical lattices, when color-orbit coupling and color-flip fields are present. This system corresponds to a generalization of two-internal state fermions with ${\rm SU(2)}$ symmetry in the presence of spin-orbit coupling and spin-flipping Zeeman fields. We investigate the eigenspectrum and Chern numbers to describe different topological phases that emerge in the phase diagrams of color-orbit coupled fermions in optical lattices. We obtain the phases as a function of artificial magnetic, color-orbit and color-flip fields that can be independently controlled. For fixed artificial magnetic flux ratio, we identify topological quantum phases and phase transitions in the phase diagrams of chemical potential versus color-flip fields or color-orbit coupling, where the chirality and number of midgap edge states changes. The topologically non-trivial phases are classified in three groups: the first group has total non-zero chirality and exhibit only the quantum charge Hall effect; the second group has total non-zero chirality and exhibit both quantum charge and quantum color Hall effects; and the third group has total zero chirality, but exhibit the quantum color Hall effect. These phases are generalizations of the quantum Hall and quantum spin Hall phases for charged spin-$1/2$ fermions. Lastly, we also describe the color density of states and a staircase structure in the total and color filling factors versus chemical potential for fixed color-orbit, color-flip and magnetic flux ratio. We show the existence of incompressible states at rational filling factors precisely given by a gap-labelling theorem that relates the filling factors to the magnetic flux ratio and topological quantum numbers.
description: 15 pages, 4 figures
Pressure-induced metal-insulator transition in LaMnO3 is not of Mott-Hubbard type
Creators: name: Yamasaki, A.
name: Feldbacher, M.
name: Yang, Y. -F.
name: Andersen, O. K.
name: Held, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Calculations employing the local density approximation combined with static and dynamical mean-field theories (LDA+U and LDA+DMFT) indicate that the metal-insulator transition observed at 32 GPa in paramagnetic LaMnO3 at room temperature is not a Mott-Hubbard transition, but is caused by orbital splitting of the majority-spin eg bands. For LaMnO3 to be insulating at pressures below 32 GPa, both on-site Coulomb repulsion and Jahn-Teller distortion are needed.
description: 4 pages, 3 figures
Mỹky jaakähy mĩjetãnkjey ("Poesia em língua mỹky")
Creators: name: Mỹky, Kamtinuwy
name: Mỹky, Tapau
name: Mỹky, Tupy
name: Bardagil Mas, Bernat
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: irn

description: Livrinho de poemas em língua mỹky, a maioria deles haikus, com textos escritos pelos alunos e professores da escola Xinũi Mỹky da aldeia Iruu/ Japuira em outono de 2022.
A booklet with poems in Mỹky, most of them haikus, written by the students and teachers of the Xinũi Mỹky Indigenous School in the village of Iruu/ Japuira, in the Fall of 2022.
Supersymmetric Langevin equation to explore free energy landscapes
Creators: name: Mossa, Alessandro
name: Clementi, Cecilia
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The recently discovered supersymmetric generalizations of Langevin dynamics and Kramers equation can be utilized for the exploration of free energy landscapes of systems whose large time-scale separation hampers the usefulness of standard molecular dynamics techniques. The first realistic application is here presented. The system chosen is a minimalist model for a short alanine peptide exhibiting a helix-coil transition.
description: 9 pages, 9 figures, RevTeX 4 v2: conclusive section enlarged, references added
Persistence of instanton connections in chemical reactions with time dependent rates
Creators: name: Escudero, Carlos
name: Rodriguez, Jose Angel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Dynamical Systems (math.DS)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The evolution of a system of chemical reactions can be studied, in the eikonal approximation, by means of a Hamiltonian dynamical system. The fixed points of this dynamical system represent the different states in which the chemical system can be found, and the connections among them represent instantons or optimal paths linking these states. We study the relation between the phase portrait of the Hamiltonian system representing a set of chemical reactions with constant rates and the corresponding system when these rates vary in time. We show that the topology of the phase space is robust for small time-dependent perturbations in concrete examples and state general results when possible. This robustness allows us to apply some of the conclusions on the qualitative behavior of the autonomous system to the time-dependent situation.
Does Islamic religiosity influence professional accountants' judgments? Evidence from global convergence of IFRS
Creators: name: Ahsan, AFM Mainul
name: Bose, Sudipta
name: Ali, Muhammad
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 3501
subject: Accounting, auditing and accountability

description: We examine the influence of religiosity on professional accountants' judgments towards global convergence of financial reporting using, as an example, the Islamic religiosity context of Bangladesh. Professional accountants' judgments, in relation to the global convergence of the International Financial Reporting Standards (IFRS), is measured using Gray's (1988) accounting values (professionalism vs. statutory control, uniformity vs. flexibility, conservatism vs. optimism and secrecy vs. transparency), with Islamic religiosity measured using the Sahin–Francis Scale of Attitude towards Islam. We find that professional accountants in Bangladesh who have higher levels of Islamic religiosity values are supportive of statutory control, conservatism, uniformity, and secrecy. These findings suggest that professional accountants in Bangladesh are less likely to be supportive of principles-based financial reporting standards such as IFRS. The findings have implications for global accounting standard setters, international accounting firms, and multinational companies, particularly in Islamic countries. Our study findings may be useful to regulators in Bangladesh and other Islamic countries in improving the quality of the convergence of IFRS.
One-dimensional Hybrid Approach to Extensive Air Shower Simulation
Creators: name: Bergmann, T.
name: Engel, R.
name: Heck, D.
name: Kalmykov, N. N.
name: Ostapchenko, S.
name: Pierog, T.
name: Thouw, T.
name: Werner, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An efficient scheme for one-dimensional extensive air shower simulation and its implementation in the program CONEX are presented. Explicit Monte Carlo simulation of the high-energy part of hadronic and electromagnetic cascades in the atmosphere is combined with a numeric solution of cascade equations for smaller energy sub-showers to obtain accurate shower predictions. The developed scheme allows us to calculate not only observables related to the number of particles (shower size) but also ionization energy deposit profiles which are needed for the interpretation of data of experiments employing the fluorescence light technique. We discuss in detail the basic algorithms developed and illustrate the power of the method. It is shown that Monte Carlo, numerical, and hybrid air shower calculations give consistent results which agree very well with those obtained within the CORSIKA program.
Forming Disk Galaxies in Lambda CDM Simulations
Creators: name: Governato, F.
name: Willman, B.
name: Mayer, L.
name: Brooks, A.
name: Stinson, G.
name: Valenzuela, O.
name: Wadsley, J.
name: Quinn, T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We used fully cosmological, high resolution N-body + SPH simulations to follow the formation of disk galaxies with rotational velocities between 135 and 270 km/sec in a Lambda CDM universe. The simulations include gas cooling, star formation, the effects of a uniform UV background and a physically motivated description of feedback from supernovae. The host dark matter halos have a spin and last major merger redshift typical of galaxy sized halos as measured in recent large scale N--Body simulations. The simulated galaxies form rotationally supported disks with realistic exponential scale lengths and fall on both the I-band and baryonic Tully Fisher relations. An extended stellar disk forms inside the Milky Way sized halo immediately after the last major merger. The combination of UV background and SN feedback drastically reduces the number of visible satellites orbiting inside a Milky Way sized halo, bringing it in fair agreement with observations. Our simulations predict that the average age of a primary galaxy's stellar population decreases with mass, because feedback delays star formation in less massive galaxies. Galaxies have stellar masses and current star formation rates as a function of total mass that are in good agreement with observational data. We discuss how both high mass and force resolution and a realistic description of star formation and feedback are important ingredients to match the observed properties of galaxies.
description: Revised version after the referee's comments. Conclusions unchanged. 2 new plots. MNRAS in press. 20 plots. 21 pages
Group-Level Emotion Recognition Using a Unimodal Privacy-Safe Non-Individual Approach
Creators: name: Petrova, Anastasia
name: Vaufreydaz, Dominique
name: Dessus, Philippe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: This article presents our unimodal privacy-safe and non-individual proposal for the audio-video group emotion recognition subtask at the Emotion Recognition in the Wild (EmotiW) Challenge 2020 1. This sub challenge aims to classify in the wild videos into three categories: Positive, Neutral and Negative. Recent deep learning models have shown tremendous advances in analyzing interactions between people, predicting human behavior and affective evaluation. Nonetheless, their performance comes from individual-based analysis, which means summing up and averaging scores from individual detections, which inevitably leads to some privacy issues. In this research, we investigated a frugal approach towards a model able to capture the global moods from the whole image without using face or pose detection, or any individual-based feature as input. The proposed methodology mixes state-of-the-art and dedicated synthetic corpora as training sources. With an in-depth exploration of neural network architectures for group-level emotion recognition, we built a VGG-based model achieving 59.13% accuracy on the VGAF test set (eleventh place of the challenge). Given that the analysis is unimodal based only on global features and that the performance is evaluated on a real-world dataset, these results are promising and let us envision extending this model to multimodality for classroom ambiance evaluation, our final target application.
Experimental demonstration of frequency downconverted arm length stabilization for a future upgraded gravitational wave detector
Creators: name: Tanioka, Satoshi
name: Wu, Bin
name: Ballmer, Stefan W.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Ground-based laser interferometric gravitational wave detectors consist of complex multiple optical cavity systems. An arm-length stabilization (ALS) system has played an important role in bringing such complex detector into operational state and enhance the duty cycle. The sensitivity of these detectors can be improved if the thermal noise of their test mass mirror coatings is reduced. Crystalline AlGaAs coatings are a promising candidate for this. However, traditional ALS system with frequency-doubled 532 nm light is no longer an option with AlGaAs coatings due to the narrow bandgap of GaAs, thus alternative locking schemes must be developed. In this letter, we describe an experimental demonstration of a novel ALS scheme which is compatible with AlGaAs coatings. This ALS scheme will enable the use of AlGaAs coatings and contribute to improved sensitivity of future detectors.
Dry Late Accretion inferred from Venus' coupled atmosphere and internal evolution
Creators: name: Gillmann, C.
name: Golabek, G. J.
name: Raymond, S. N.
name: Schonbachler, M.
name: Tackley, P. J.
name: Dehant, V.
name: Debaille, V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The composition of meteoritic material delivered to the terrestrial planets after the end of core formation as late accretion remains contentious. Because the evolution of Venus' atmospheric composition is likely to be less intricate than the Earth's, we test implications of wet and dry late accretion compositions, using present-day Venus atmosphere measurements. Here we investigate the long-term evolution of Venus using self-consistent numerical models of global thermochemical mantle convection coupled with both an atmospheric evolution model and a late accretion N-body delivery model. Atmospheric escape is only able to remove a limited amount of water over the history of the planet. We show that late accretion of wet material exceeds this sink. CO2 and N2 contributions serve as additional constraints. A preferentially dry composition of the late accretion impactors is in agreement with observational data on H2O, CO2 and N2 in Venus' present-day atmosphere. Our study suggests that the late accreted material delivered to Venus was mostly dry enstatite chondrite, conforming to isotopic data available for Earth. Our preferred scenario indicates late accretion on Venus contained less than 2.5% wet carbonaceous chondrites. In this scenario, the majority of Venus' and Earth's water has been delivered during the main accretion phase.
description: 14 pages, 4 figures, 4 supplementary figures
Magnetic dynamics with Weyl fermions
Creators: name: Tserkovnyak, Yaroslav
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Transport of charge and valley degrees of freedom coupled to order-parameter dynamics in magnetic Weyl semimetals is studied in the framework of nonequilibrium thermodynamics. In addition to the established valley-related transport anomalies that are rooted in band-structure topology, we construct dissipative couplings between the three dynamic constituents of the system driven out of equilibrium by electromagnetic perturbations. We show how the valley degree of freedom mediates an effective coupling between the charge and magnetic sectors of the system, through a combination of the chiral anomaly, on the electric side, and the Onsager-paired valley torque and pumping, on the magnetic side. This work compliments previous studies of magnetic Weyl semimetals by a more systematic analysis of collective dissipation. We discuss several concrete examples of the valley-mediated current-driven magnetic instabilities and charge pumping, and extend the theory to the antiferromagnetic case.
description: 8 pages, 1 figure
Asymmetric mode-pairing quantum key distribution
Creators: name: Lu, Zeyang
name: Wang, Gang
name: Li, Chan
name: Cao, Zhu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Mode-pairing quantum key distribution (MP-QKD) can surpass the repeaterless rate-transmittance bound (Pirandola-Laurenza-Ottaviani-Banchi bound) without requiring global phase locking, exhibiting remarkable flexibility. However, MP-QKD necessitates equal communication distances in two channels, which is a challenging requirement in practical applications. To address this limitation, we extend the original MP-QKD to asymmetric cases. Our decoy-state estimation confirms that asymmetric channel transmittances and asymmetric intensities do not compromise the security of the protocol. We focus on the pulse-intensity relationship, a key factor for optimizing the performance of asymmetric MP-QKD. Unlike previous asymmetric protocols, the intensities of different bases in asymmetric MP-QKD cannot be decoupled. We introduce an optimal-pulse-intensity method, adaptable to various scenarios, to enhance key rates by calculating ideal pulse intensities. Simulation results in various representative scenarios indicate that our method effectively reduces the impact of asymmetric channel distances on MP-QKD performance, enhancing its practical applicability.
A spin triplet supercurrent through the half-metallic ferromagnet CrO2
Creators: name: Keizer, R. S.
name: Goennenwein, S. T. B.
name: Klapwijk, T. M.
name: Miao, G.
name: Xiao, G.
name: Gupta, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In general, conventional superconductivity should not occur in a ferromagnet, though it has been seen in iron under pressure. Moreover, theory predicts that the current is always carried by pairs of electrons in a spin singlet state, so conventional superconductivity decays very rapidly when in contact with a ferromagnet, which normally prohibits the existence of singlet pairs. It has been predicted that this rapid spatial decay would not occur when spin triplet superconductivity could be induced in the ferromagnet. Here we report a Josephson supercurrent through the strong ferromagnet CrO2, from which we infer that it is a spin triplet supercurrent. Our experimental setup is different from those envisaged in the earlier predictions, but we conclude that the underlying physical explanation for our result is a conversion from spin singlet to spin triplets at the interface. The supercurrent can be switched with the direction of the magnetization, analogous to spin valve transistors, and therefore could enable magnetization-controlled Josephson junctions.
description: 14 pages, including 3 figures
Quantum Information Processing with Delocalized Qubits under Global Control
Creators: name: Fitzsimons, Joseph
name: Xiao, Li
name: Benjamin, Simon C.
name: Jones, Jonathan A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Any technology for quantum information processing (QIP) must embody within it quantum bits (qubits) and maintain control of their key quantum properties of superposition and entanglement. Typical QIP schemes envisage an array of physical systems, such as electrons or nuclei, with each system representing a given qubit. For adequate control, systems must be distinguishable either by physical separation or unique frequencies, and their mutual interactions must be individually manipulable. These difficult requirements exclude many nanoscale technologies where systems are densely packed and continuously interacting. Here we demonstrate a new paradigm: restricting ourselves to global control pulses we permit systems to interact freely and continuously, with the consequence that qubits can become delocalized over the entire device. We realize this using NMR studies of three carbon-13 nuclei in alanine, demonstrating all the key aspects including a quantum mirror, one- and two-qubit gates, permutation of densely packed qubits and Deutsch algorithms.
description: 4 pages, 5 figures
Fotografias 2022: Mỹky
Creators: name: Mỹky, Kamtinuwy
name: Mỹky, Kiwyxi
name: Mỹky, Koparauku
name: Mỹky, Xinuxi
name: Bardagil Mas, Bernat
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: irn

description: Fotografias tomadas em 2022 na comunidade Mỹky, na aldeia Iruu/ Japuira. A descrição está incluida no nome do arquivo.
Segue a lista a modo informativo:

Myky2022-1- A truck with illegal logging
Myky2022-2- Xinuxi
Myky2022-3- Paatau
Myky2022-4-ready to record
Myky2022-5-Paatau
Myky2022-6-hammock
Myky2022-7-Japuira village
Myky2022-8-entrance to Myky protected land
Myky2022-9-making a hammock
Myky2022-10-making a hammock
Myky2022-11-Janai listens to himself
Myky2022-12-Kamunu teaches medicinal plants
Myky2022-13-Tapau writes down medicinal plants
Myky2022-14-Kamunu teaches medicinal plants
Myky2022-15-medicinal plants
Myky2022-16-medicinal plants
Myky2022-17-planting manioc
Myky2022-18-class planting manioc
Myky2022-19-class planting manioc
Myky2022-20-class planting manioc
Myky2022-21-working cotton
Myky2022-22-sonxi
Myky2022-23-Playing head ball “ajãi”
Myky2022-24-Playing head ball “ajãi”
Myky2022-25-Dance
Myky2022-26-Paatau and Kamunu recount first contact
Myky2022-27-Janaxi in the field
Myky2022-28-manioc field
Myky2022-29-Janaxi
Myky2022-30-Japuira village
Myky2022-31-arrowhead-making tools
Myky2022-32-manioc
Myky2022-33-Bartolo Napjoku
Myky2022-34-creek
Myky2022-35-Luiz Tamuxi and Takaoroku
Myky2022-36-Japuira village
Myky2022-37-transcription setup
Myky2022-38-evening
Myky2022-39-butchering peccary
Myky2022-40-Janai
Myky2022-41-tapioca pancake
Myky2022-42-sunset
Myky2022-43-making rope
Myky2022-44 painting
Myky2022-45-making spindle
Myky2022-46-translating
Myky2022-47-making baby hanger
Myky2022-48-morning mist
Myky2022-49-the linguis's house
Myky2022-50-the linguist's house
Myky2022-51-bamboo katentiri
Myky2022-52-PVC katentiri
Myky2022-53-looking for bamboo
Myky2022-54-waterfall
Myky2022-55-Kamtinuwy transcribing on ELAN
Myky2022-56-xunxi
The smallest neutrino mass
Creators: name: Davidson, Sacha
name: Isidori, Gino
name: Strumia, Alessandro
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider models where one Majorana neutrino is massless at tree level (like the see saw with two right-handed neutrinos), and compute the contribution to its mass m generated by two-loop quantum corrections. The result is m \sim 10^{-13}eV in the SM and m \sim 10^{-10} eV (tanBeta/10)^4 in the MSSM, compatible with the restricted range suggested by Affleck-Dine baryogenesis.
description: 6 pages. v2: final version to appear on PLB; important reference added
A paradigmatic flow for small-scale magnetohydrodynamics: properties of the ideal case and the collision of current sheets
Creators: name: Lee, E.
name: Brachet, M. E.
name: Pouquet, A.
name: Mininni, P. D.
name: Rosenberg, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We propose two sets of initial conditions for magnetohydrodynamics (MHD) in which both the velocity and the magnetic fields have spatial symmetries that are preserved by the dynamical equations as the system evolves. When implemented numerically they allow for substantial savings in CPU time and memory storage requirements for a given resolved scale separation. Basic properties of these Taylor-Green flows generalized to MHD are given, and the ideal non-dissipative case is studied up to the equivalent of 2048^3 grid points for one of these flows. The temporal evolution of the logarithmic decrements, delta, of the energy spectrum remains exponential at the highest spatial resolution considered, for which an acceleration is observed briefly before the grid resolution is reached. Up to the end of the exponential decay of delta, the behavior is consistent with a regular flow with no appearance of a singularity. The subsequent short acceleration in the formation of small magnetic scales can be associated with a near collision of two current sheets driven together by magnetic pressure. It leads to strong gradients with a fast rotation of the direction of the magnetic field, a feature also observed in the solar wind.
description: 8 pages, 4 figures
Non-projective Bell state measurements
Creators: name: Wei, Amanda
name: Cobucci, Gabriele
name: Tavakoli, Armin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Bell state measurement (BSM) is the projection of two qubits onto four orthogonal maximally entangled states. Here, we first propose how to appropriately define more general BSMs, that have more than four possible outcomes, and then study whether they exist in quantum theory. We observe that non-projective BSMs can be defined in a systematic way in terms of equiangular tight frames of maximally entangled states, i.e.~a set of maximally entangled states, where every pair is equally, and in a sense maximally, distinguishable. We show that there exists a five-outcome BSM through an explicit construction, and find that it admits a simple geometric representation. Then, we prove that there exists no larger BSM on two qubits by showing that no six-outcome BSM is possible. We also determine the most distinguishable set of six equiangular maximally entangled states and show that it falls only somewhat short of forming a valid quantum measurement. Finally, we study the non-projective BSM in the contexts of both local state discrimination and entanglement-assisted quantum communication. Our results put forward natural forms of non-projective joint measurements and provide insight on the geometry of entangled quantum states.