cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Wave analysis in the complex Fourier transform domain: A new method to obtain the Green's functions of dispersive linear partial differential equations
Creators: name: Zhu, Minjiang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: This paper provides a new analytical method to obtain Green's functions of linear dispersive partial differential equations. The Euler-Bernoulli beam equation and the one-dimensional heat conduction equation (dissipation equation) under impulses in space and time are solved as examples. The complex infinite-domain Green's function of the Euler-Bernoulli beam is derived. A new approach is proposed to obtain the finite-domain Green's function from the infinite-domain Green's function by the reflection and transmission analysis in the complex Fourier transform domain. It is found that the solution obtained by this approach converges much better at short response times compared with that obtained by the traditional modal analysis. Besides, by applying the geometric summation formula for matrix series, a new modal expansion solution requiring no calculation of each mode's inner product is derived, which analytically proves the wave-mode duality and simplifies the calculation. The semi-infinite-domain cases and the coupled-domain cases are also derived by the newly developed method to show its validity and simplicity. It is found that the non-propagating waves also possess wave speed, and heat conduction can also be treated as propagating waves
description: 14 pages, 9 figures
The complete catalogue of light curves in equal-mass binary microlensing
Creators: name: Liebig, Christine
name: D'Ago, Giuseppe
name: Bozza, Valerio
name: Dominik, Martin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The light curves observed in microlensing events due to binary lenses span an extremely wide variety of forms, characterised by U-shaped caustic crossings and/or additional smoother peaks. However, all peaks of the binary-lens light curve can be traced back to features of caustics of the lens system. Moreover, all peaks can be categorised as one of only four types (cusp-grazing, cusp-crossing, fold-crossing or fold-grazing). This enables us to present the first complete map of the parameter space of the equal-mass case by identifying regions in which light curves feature the same number and nature of peaks. We find that the total number of morphologies that can be obtained is 73 out of 232 different regions. The partition of the parameter space so-obtained provides a new key to optimise modelling of observed events through a clever choice of initial conditions for fitting algorithms.
description: 22 pages, 18 figures, accepted for publication in MNRAS
Bibliography on geoscientific research in Bransfield Strait
Creators: name: Almendros, Javier
name: Ibañez, Jesus
name: Carmona, Enrique
name: Galindo-Zaldivar, Jesus
name: Alguacil, Gerardo
name: Pena Ruano, Jose
name: Teixido, Teresa
name: Catalan, Manuel
name: Morales, Jose
name: Stich, Daniel
name: Vizcaino, Luis
name: Ardaraz, Oier
name: Serrano, Inmaculada
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 370504
subject: Marine geoscience

description: Repository of bibliographic references on advances in geoscience research in Bransfield Sound.
Social media research in sensory-consumer science: Opportunities for the dairy industry
Creators: name: Hutchings, Scott
name: Espinosa Ramos, Josafath
name: Dixit, Yash
name: Torrico, Damir
name: Realini Cujo, Carolina
name: Jaeger, Sara R.
name: Reis, Marlon Martins dos
Publisher: name: AgResearch
Year: 2023
Subjects: classificationCode: 3006
subject: Food sciences

description: Sensory-consumer scienceA key part of adding value products has always been studying the consumer to understand sensory experiences, preferences, and factors behind food choiceQuantitative researchCentral location testing (CLT)Home use tests with foodOnline surveyQualitative researchInterviewsFocus groups
Rotational evolution of the Crab pulsar in the wind braking model
Creators: name: Kou, F. F.
name: Tong, H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The pulsar wind model is updated by considering the effect of particle density and pulsar death. It can describe both the short term and long term rotational evolution of pulsars consistently. It is applied to model the rotational evolution of the Crab pulsar. The pulsar is spun down by a combination of magnetic dipole radiation and particle wind. The parameters of the Crab pulsar, including magnetic field, inclination angle, and particle density are calculated. The primary particle density in acceleration region is about 10^3 times the Goldreich-Julian charge density. The lower braking index between glitches is due to a larger outflowing particle density. This may be glitch induced magnetospheric activities in normal pulsars. Evolution of braking index and the Crab pulsar in P-Pdot diagram are calculated. The Crab pulsar will evolve from magnetic dipole radiation dominated case towards particle wind dominated case. Considering the effect of pulsar "death", the Crab pulsar (and other normal pulsars) will not evolve to the cluster of magnetars but downwards to the death valley. Different acceleration models are also considered. Applications to other sources are also discussed, including pulsars with braking index measured, and the magnetar population.
description: 10 pages, 7 figures, accepted in MNRAS
Individual eigenvalue distributions for chGSE-chGUE crossover and determination of low-energy constants in two-color QCD+QED
Creators: name: Nishigaki, Shinsuke M.
name: Yamamoto, Takuya
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute statistical distributions of individual low-lying eigenvalues of random matrix ensembles interpolating chiral Gaussian symplectic and unitary ensembles. To this aim we use the Nystrom-type discretization of Fredholm Pfaffians and resolvents of the dynamical Bessel kernel containing a single crossover parameter ρ. The ρ-dependent distributions of the four smallest eigenvalues are then used to fit the Dirac spectra of modulated SU(2) lattice gauge theory, in which the reality of the staggered SU(2) Dirac operator is weakly violated either by the U(1) gauge field or by a constant background flux. Combined use of individual eigenvalue distributions is effective in reducing statistical errors in ρ; its linear dependence on the imaginary chemical potential μ_I enables precise determination of the pseudo-scalar decay constant F of the SU(2) gauge theory from a small lattice. The U(1)-coupling dependence of an equivalent of F^2 μ_I^2 in the SU(2) x U(1) theory is also obtained.
description: 7 pages, 10 figures, presented at the 32nd International Symposium on Lattice Field Theory - Lattice 2014, June 23-28, 2014, Columbia University, New York, NY; (v2) replaces the 3rd row of Table 1 and Figure 3 left that contained errors
The Renormalization Group flow of unimodular f(R) gravity
Creators: name: Eichhorn, Astrid
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Unimodular gravity is classically equivalent to General Relativity. This equivalence extends to actions which are functions of the curvature scalar. At the quantum level, the dynamics could differ. Most importantly, the cosmological constant is not a coupling in the unimodular action, providing a new vantage point from which to address the cosmological constant fine-tuning problem. Here, a quantum theory based on the asymptotic safety scenario is studied, and evidence for an interacting fixed point in unimodular f(R) gravity is found. We study the fixed point and its properties, and also discuss the compatibility of unimodular asymptotic safety with dynamical matter, finding evidence for its compatibility with the matter degrees of freedom of the Standard Model.
description: 17 pages, 2 figures; new version with some clarifications, identical to version to appear in JHEP
Quantum transport in Dirac materials: signatures of tilted and anisotropic Dirac and Weyl cones
Creators: name: Trescher, Maximilian
name: Sbierski, Björn
name: Brouwer, Piet W.
name: Bergholtz, Emil J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We calculate conductance and noise for quantum transport at the nodal point for arbitrarily tilted and anisotropic Dirac or Weyl cones. Tilted and anisotropic dispersions are generic in absence of certain discrete symmetries, such as particle-hole and lattice point group symmetries. Whereas anisotropy affects the conductance g, but leaves the Fano factor F (the ratio of shot noise power and current) unchanged, a tilt affects both g and F. Since F is a universal number in many other situations, this finding is remarkable. We apply our general considerations to specific lattice models of strained graphene and a pyrochlore Weyl semi-metal.
description: Published. 6 pages, 5 figures
Free Riding Rio: Protest, Public Transport and the Politics of a Footboard
Creators: name: Kemmer, Laura
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 300 Sozialwissenschaften
subject: Rio de Janeiro
subject: Micropolitics
subject: Affect
subject: Collectivity
subject: Infrastructure
subject: Materiality

description: This article explores the political quality of relations between residents and urban materiality. Against a background of mass protests against transit fare increases in major Brazilian cities, and the violent infrastructural transformations of post‐Olympic Rio de Janeiro, I show how the four‐year suspension of a central city tramline has led to the emergence of new forms of urban collectivity. My case study concentrates on the tramway’s function as “free riding” device, which allows residents to jump on and off the footboard without having to pay for the journey. I draw on filmed accounts of footboard‐riding to examine how embodied relations to urban matter have induced claims for alternative ways of organizing public transport and access to the city. By combining approaches to assemblage, micropolitics and affect, I argue that residents’ attachments to the tramway and its latest technological changes generate ambiguous political mobilizations, ranging from revolutionary to reactionary.
title: Entry decision in the platform economy
title: Η απόφαση εισόδου στην οικονομία της πλατφόρμας
titleType: AlternativeTitle
Creators: name: Kleidas, Aristeidis
name: Κλειδάς, Αριστείδης
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2023
Subjects: subject: Business model
subject: Multi-sided platform
subject: Entry decision

description: Η ανάπτυξη της τεχνολογίας και των διαθέσιμων τεχνικών μέσων ήταν ανέκαθεν ένας από τους σημαντικότερους παράγοντες για την ανάπτυξη της καινοτομίας σε κοινωνίες και αγορές σε όλο τον κόσμο. Ένας από τους λόγους για τους οποίους παρατηρείται το παραπάνω φαινόμενο είναι ότι συχνά η ανάπτυξη μιας τεχνολογίας επιτρέπει την πρακτική εφαρμογή καινοτόμων και επαναστατικών ιδεών που, κατά τη σύλληψή τους και ελλείψει αυτής της τεχνολογίας, δεν μπορούσαν να εφαρμοστούν ή καθιστούν δυνατή νέους τρόπους λειτουργίας και εκμετάλλευσης παραδοσιακών συστημάτων και πρακτικών που μέχρι την ανάπτυξη αυτής της τεχνολογίας είχαν εντελώς διαφορετικό σκοπό ή πολύ περιορισμένη χρήση. Είναι γεγονός, άλλωστε, ότι ιστορικά κάποιες από τις πιο εντυπωσιακές και σημαντικές εξελίξεις, τόσο στο βιοτικό επίπεδο του κοινωνικού συνόλου όσο και στη βελτίωση και αλλαγή του τρόπου λειτουργίας της αγοράς και των επιχειρήσεων, ήταν που πυροδοτήθηκαν από τεχνολογικά και τεχνικά επιτεύγματα, τα οποία έδωσαν την πρακτική δυνατότητα σε τέτοιες ιδέες, συστήματα και πρακτικές να εξελιχθούν. Ωστόσο, η τεχνολογία εξέλιξής της και η μεταφορά της ανθρωπότητας στην ψηφιακή εποχή μέσω των υπολογιστών, του διαδικτύου και των έξυπνων φορητών συσκευών, εξαλείφει τους γεωγραφικούς περιορισμούς και σχεδόν εξάλειψε το κόστος των πληροφοριών. Έτσι, οδηγηθήκαμε στην πραγματική καινοτομία της σύγχρονης συνεργατικής οικονομίας, δηλαδή στην επέκτασή της στο «μοίρασμα» πέρα από τα στενά όρια της γεωγραφικής περιοχής του κοινωνικού κύκλου. Η παρούσα εργασία στοχεύει να εντοπίσει και να αναλύσει τα ζητήματα ανταγωνισμού που προκύπτουν από τη λειτουργία του οικονομικού μοντέλου της Sharing Οικονομίας στις παραδοσιακές αγορές. Ως εκ τούτου, η χρήση της τεχνολογίας από τις επιχειρήσεις και ιδιαίτερα η χρήση πλατφορμών και μέσων κοινωνικής δικτύωσης θα μελετηθεί στην παρούσα εργασία, με στόχο την είσοδο στην αγορά. Ενώ θα αναλυθούν ενέργειες που στοχεύουν στην προστασία αυτών των πλατφορμών για το κοινό που τις χρησιμοποιεί.
Data augmentation for machine learning redshifts applied to SDSS galaxies
Creators: name: Hoyle, Ben
name: Rau, Markus Michael
name: Bonnett, Christopher
name: Seitz, Stella
name: Weller, Jochen
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present analyses of data augmentation for machine learning redshift estimation. Data augmentation makes a training sample more closely resemble a test sample, if the two base samples differ, in order to improve measured statistics of the test sample. We perform two sets of analyses by selecting 800k (1.7M) SDSS DR8 (DR10) galaxies with spectroscopic redshifts. We construct a base training set by imposing an artificial r band apparent magnitude cut to select only bright galaxies and then augment this base training set by using simulations and by applying the K-correct package to artificially place training set galaxies at a higher redshift. We obtain redshift estimates for the remaining faint galaxy sample, which are not used during training. We find that data augmentation reduces the error on the recovered redshifts by 40% in both sets of analyses, when compared to the difference in error between the ideal case and the non augmented case. The outlier fraction is also reduced by at least 10% and up to 80% using data augmentation. We finally quantify how the recovered redshifts degrade as one probes to deeper magnitudes past the artificial magnitude limit of the bright training sample. We find that at all apparent magnitudes explored, the use of data augmentation with tree based methods provide a estimate of the galaxy redshift with a negligible bias, although the error on the recovered values increases as we probe to deeper magnitudes. These results have applications for surveys which have a spectroscopic training set which forms a biased sample of all photometric galaxies, for example if the spectroscopic detection magnitude limit is shallower than the photometric limit.
description: 13 pages, 4 figures, version accepted by MNRAS, added analysis, results and conclusions unchanged
Impact of signal clusters in wide-band searches for continuous gravitational waves
Creators: name: Pierini, Lorenzo
name: Astone, Pia
name: Palomba, Cristiano
name: Nyquist, Aidan
name: Dall'Osso, Simone
name: D'Antonio, Sabrina
name: Frasca, Sergio
name: La Rosa, Iuri
name: Leaci, Paola
name: Muciaccia, Federico
name: Piccinni, Ornella J.
name: Rei, Luca
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we present a study of some relevant steps of the hierarchical frequency-Hough (FH) pipeline, used within the LIGO and Virgo Collaborations for wide-parameter space searches of continuous gravitational waves (CWs) emitted, for instance, by spinning neutron stars (NSs). Because of their weak expected amplitudes, CWs have not been still detected so far. These steps, namely the spectral estimation, the {\it peakmap} construction and the procedure to select candidates in the FH plane, are critical as they contribute to determine the final search sensitivity. Here, we are interested in investigating their behavior in the (presently quite) extreme case of signal clusters, due to many and strong CW sources, emitting gravitational waves (GWs) within a small (i.e. <1 Hz wide) frequency range. This could happen for some kinds of CW sources detectable by next generation detectors, like LISA, Einstein Telescope and Cosmic Explorer. Moreover, this possibility has been recently raised even for current Earth-based detectors, in some scenarios of CW emission from ultralight boson clouds around stellar mass black holes (BHs). We quantitatively evaluate the robustness of the FH analysis procedure, designed to minimize the loss of single CW signals, under the unusual situation of signal clusters. Results depend mainly on how strong in amplitude and dense in frequency the signals are, and on the range of frequency they cover. We show that indeed a small sensitivity loss may happen in presence of a very high mean signal density affecting a frequency range of the order of one Hertz, while when the signal cluster covers a frequency range of one tenth of Hertz, or less, we may actually have a sensitivity gain. Overall, we demonstrate the FH to be robust even in presence of moderate-to-large signal clusters.
Photoelectrochemical and photocatalytic production of solar fuels
Creators: name: Walls, Jake
Publisher: name: Loughborough University
Year: 2019
Subjects: subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: Solar Fuels is an expanding area of research in energy storage, with the likes of hydrogen, ammonia and methanol all being produced photocatalytically and photoelectrochemically, effectively storing solar energy as chemical energy. Ammonia is currently being investigated as a possible energy vector as a combustion fuel, hydrogen storage chemical and use in a fuel cell. However current synthesis methods lead to high emissions and energy consumption and are therefore not ideal. Utilisation of solar ammonia production techniques such as photocatalysis and photoelectrochemistry provide more environmentally friendly routes to ammonia synthesis, at ambient temperature and pressure.
This research intends to investigate various semiconductor materials for photocatalytic and photoelectrochemical solar fuel production, with a focus on ammonia synthesis from photocatalytic and photoelectrochemical reduction of nitrogen and nitrate. By utilising novel semiconductor synthesis methods such as aerosol assisted chemical vapour deposition and microwave synthesis, interesting morphologies and improved activities can be obtained. It is found that nanostructured morphologies can be created on photoelectrodes through the aerosol assisted chemical vapour deposition method (CuFe2O4) and microwave synthesis can rapidly produce photocatalysts with improved photocatalytic activity for ammonia production. Through microwave synthesis of palladium doped titanium dioxide powder (Pd-TiO2), a new method of synthesising ammonia was discovered through microwave ammonia synthesis utilised in conjunction with in-situ alcohol dehydrogenation.
title: Detailed Analysis of Complex Waveforms of a UAV Laser Bathymeric Profiler
Creators: name: Schwarz, Roland
name: Pfennigbauer, Martin
Publisher: name: TU Wien
Year: 2019
Subjects: UAV

description: This text has been translated from German by one of the authors after publication to make it accessible to non-German readers. The original text appeared in „Publikationen der deutschen Gesellschaft für Photogrammetrie, Fernerkundung und Geoinformation e.V. Band 28, 2019“.
description: Abstract: Linear recording of profiles in hydrology and hydraulic engineering is still justified despite the availability of multidimensional modeling. The Bathycopter based on the BDF-1, developed by RIEGL, is a measuring device for profile acquisition especially suitable for small-scale, unmanned airborne applications. The primary expected result of a flight with this instrument is a topographic profile of a water body consisting of the lines of the ground and the water surface. With the recording technique used, the complete waveforms of the backscattered laser echoes are first recorded in order to extract the points of the surface and the ground in a post-processing. The recorded waveforms show a high level of detail which is currently unused and not yet fully understood. While the study of the course of backscattering in the atmosphere is part of the standard repertoire in laser measurement technology, the study of propagation details in the water column has not yet completely arrived in everyday technical life. A distinction between artefacts caused by the method itself and structures useful for the understanding of the water column could be a first step towards a utilization of these data, which are already generated by the method but are currently unused.
The role of low-energy observables in precision Higgs analysis
Creators: name: Petrov, Alexey A.
name: Pokorski, Stefan
name: Wells, James D.
name: Zhang, Zhengkang
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A conventional approach to precision calculations of Higgs boson observables uses quark masses $m_c$ and $m_b$ as inputs. However, quark masses are single numbers that hide a variety of low-energy data from which they are extracted, and also hide the various sources of theoretical uncertainties and correlations with additional input parameters such as $α_s$. Higher-precision calculations, which are needed to give meaning to future measurements, require more direct engagement with the low-energy data in a global analysis. We present an initial calculation in this direction, which illustrates the procedure and reveals some of the theory uncertainties that challenge subpercent determinations of Higgs boson partial widths.
description: 21 pages, 2 figures; v2: minor changes, typos corrected
SEA2SEE PARTICIPATIVE PROTOCOL MANUAL
Creators: name: Maggioni, Tecla
name: Zorrilla, Juanita
Publisher: name: Zenodo
Year: 2023
Subjects: Participation, Collective Intelligence, SEA2SEE project

description: This manual gives a brief introduction to the Sea2See Participation Protocol under WP2, and then outlines each of the participation tasks that must be completed by partners involved in Subtask 2.1.2. A number of worksheets and checklists are also provided in the tools section. This Participation Protocol Learning Manual was adapted from the original publication Ocean Literacy Co-Creation Participation Protocol, Devaney, M., Domegan, C., McHugh, P. B. Broome, M. Hogan and Piwowarczyk, J. (2015) The Sea Change Participation Protocols Learning Manual. EU Sea Change Project.
 Given the similarities in terms of consultation objectives and dynamics, this protocol was thought to be a good fit for the Sea2See project.
Anisotropic solution for polytropic stars in 4D Einstein-Gauss-Bonnet gravity
Creators: name: Singh, Ksh. Newton
name: Maurya, S. K.
name: Bhar, Piyali
name: Nag, Riju
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 83Cxx, 83-10

description: In the present work we have investigated a new anisotropic solution for polytropic star in the framework of $4D$ Einstein-Gauss-Bonnet (EGB) gravity. The possibility of determining the masses and radii of compact stars which puts some limitations on equation of state (EoS) above the nuclear saturation density. For this purpose, the $4D$ EGB field equations are solved by taking a generalized polytropic equation of state (EoS) with Finch-Skea ansatz. The generalized solution for anisotropic model has been tested for different values of Gauss-Bonnet constant $α$ which satisfies all the physical criteria including causality with static stability via mass vs central mass density ($M-ρ_c$), Bondi and Abreu criterion. The adiabatic index shows a minor influence of the GB coupling constant whereas the central and surface redshifts in the EGB gravity always remain lower than the GR. We present the possibility of fitting the mass and radius for some known compact star via $M-R$ curve which satisfies the recent gravitational wave observations from GW 170817 event.
description: 11 Pages, 10 Figures, 1 Table (to be appeared in EPJC)
The long-lasting optical afterglow plateau of short burst GRB 130912A
Creators: name: Zhu, Biao
name: Zhang, Fu-Wen
name: Zhang, Shuai
name: Jin, Zhi-Ping
name: Wei, Da-Ming
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The short burst GRB 130912A was detected by Swift, Fermi satellites and several ground-based optical telescopes. Its X-ray light curve decayed with time normally. The optical emission, however, displayed a long term plateau, which is the longest one in current short GRB observations. In this work we examine the physical origin of the X-ray and optical emission of this peculiar event. We find that the canonical forward shock afterglow emission model can account for the X-ray and optical data self-consistently and the energy injection model that has been widely adopted to interpret the shallowly-decaying afterglow emission is not needed. We also find that the burst was born in a very-low density interstellar medium, consistent with the compact object merger model. Significant fractions of the energy of the forward shock have been given to accelerate the non-thermal electrons and amplify the magnetic fields (i.e., $ε_{\rm e}\sim 0.37$ and $ε_{\rm B}\sim 0.16$, respectively), which are much larger than those inferred in most short burst afterglow modeling and can explain why the long-lasting optical afterglow plateau is rare in short GRBs.
description: 5 pages, 2 figures
THE SOCIAL EDUCATIONAL FUNCTION OF ART IN THE PROCESS OF SPIRITUAL UPLIFTMENT OF NEW UZBEKISTAN
Creators: name: Shokirov, Otabek
Publisher: name: Zenodo
Year: 2025

description: The article studies the theoretical foundations of the socio-philosophical analysis of the factor of art in the process of spiritual upliftment, the socio-philosophical aspects of the possibilities of art in the process of spiritual upliftment, the future tasks of the development of art in the process of spiritual upliftment. Also, the socio-philosophical analysis of the possibilities of art in the process of spiritual upliftment of New Uzbekistan is carried out.
Coalescence of Strange-Quark Planets with Strange Stars: a New Kind of Sources for Gravitational Wave Bursts
Creators: name: Geng, J. J.
name: Huang, Y. F.
name: Lu, T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Strange quark matter (SQM) may be the true ground state of hadronic matter, indicating that the observed pulsars may actually be strange stars, but not neutron stars. According to this SQM hypothesis, the existence of a hydrostatically stable sequence of strange quark matter stars has been predicted, ranging from 1 --- 2 solar mass strange stars, to smaller strange dwarfs and even strange planets. While gravitational wave (GW) astronomy is expected to open a new window to the universe, it will shed light on the searching for SQM stars. Here we show that due to their extreme compactness, strange planets can spiral very close to their host strange stars, without being tidally disrupted. Like inspiraling neutron stars or black holes, these systems would serve as a new kind of sources for GW bursts, producing strong gravitational waves at the final stage. The events occurring in our local Universe can be detected by the upcoming gravitational wave detectors, such as Advanced LIGO and the Einstein Telescope. This effect provides a unique probe to SQM objects and is hopefully a powerful tool for testing the SQM hypothesis.
description: ApJ accepted; 13 pages, 3 figures
SFS-A68: a dataset for the segmentation of space functions in apartment buildings
Creators: name: Ziaee, Amir
name: Suter, Georg
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Analyzing building models for usable area, building safety, or energy analysis requires function classification data of spaces and related objects. Automated space function classification is desirable to reduce input model preparation effort and errors. Existing space function classifiers use space feature vectors or space connectivity graphs as input. The application of deep learning (DL) image segmentation methods to space function classification has not been studied. As an initial step towards addressing this gap, we present a dataset, SFS-A68, that consists of input and ground truth images generated from 68 digital 3D models of space layouts of apartment buildings. The dataset is suitable for developing DL models for space function segmentation. We use the dataset to train and evaluate an experimental space function segmentation network based on transfer learning and training from scratch. Test results confirm the applicability of DL image segmentation for space function classification. The code and the dataset of the experiments are publicly available online (https://github.com/A2Amir/SFS-A68).
description: Published in proceedings of the 29th International Workshop on Intelligent Computing in Engineering, EG-ICE 2022, Aarhus, Denmark. https://doi.org/10.7146/aul.455.c222
SU(3) in D decays: From $30\%$ symmetry breaking to $10^{-4}$ precision
Creators: name: Gronau, Michael
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Flavor SU(3) symmetry, including $30\%$ first order SU(3) breaking, has been shown to describe adequately a vast amount of data for charmed meson decays to two pseudoscalar mesons and to a vector and a pseudoscalar meson. We review a recent dramatic progress achieved by applying a high order perturbation expansion in flavor SU(3) breaking and treating carefully isospin breaking. We identify a class of U-spin related $D^0$ decays to pairs involving charged pseudoscalar or vector mesons, for which high-precision nonlinear amplitude relations are predicted. Symmetry breaking terms affecting these relations are fourth order U-spin breaking, and terms which are first order in isospin breaking and second order in U-spin breaking. The predicted relations are shown to hold experimentally at a precision varying between $10^{-3}$ and $10^{-4}$, in agreement with estimates of high order terms. We also discuss amplitude relations for $D^0$ decays to pairs of neutral pseudoscalar mesons, and relations for rate asymmetries between decays involving $K^0_S$ and $K^0_L$ which hold up to second order U-spin breaking.
description: 24 pages, to be published in Physical Review D
Ontology-Based Hazard Knowledge Representation and Identification for Deep Refurbishment Projects
Creators: name: Doukari, Omar
name: Wakefield, James
name: Martinez, Pablo Rodriguez
name: Kassem, Mohamad
Publisher: name: Zenodo
Year: 2023
Subjects: hazard identification
artificial intelligence
ontology
knowledge-based system
Protégé platform
BIM
building renovation
scenario-based simulation
RINNO project

description: The delivery of construction projects in general can be complex and demanding, and presents well-documented challenges to the control of cost, safety, and quality. This situation becomes even more challenging in the case of renovation projects due to the high level of interaction with occupants, especially when they remain in the building over the renovation period. The safety of project participants as well as that of occupants when they are present in the renovation site must be ensured. Although the planning and management of such projects can be greatly enhanced by exploiting some of the advantages of Building Information Modelling (BIM), the process of construction hazard identification and renovation scenarios assessment is still human-based and so requires considerable time and effort. Moreover, there is little research that addresses how hazard identification can best be represented and processed automatically in order to optimise and develop more effective strategies for managing construction projects, particularly those involving the systematic renovation of existing properties for better energy performance. Using BIM along with Artificial Intelligence (AI) tools could help in processing the massive amount of newly-available data and knowledge (e.g., feedback, images captured from smart devices, IoT sensors) that are increasingly obtainable. A prerequisite for doing so is the development of a dedicated ontology that would enable the formalisation of domain knowledge, including associated concepts, relations, and constraints that are specific to renovation project hazard. The authors propose an ontology and demonstrate its application by developing a knowledge-based system for application within the context of deep renovation projects that are part of a large European research project: the RINNO project.
Looking for dark matter on the light side
Creators: name: Döbrich, Babette
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Among the prominent low-mass dark matter candidates is the QCD axion but also other light and weakly interacting particles beyond the Standard Model. We review briefly the case for such dark matter and give an overview on most recent experimental efforts within laboratory searches, where we focus on experiments exploiting a potential electromagnetic coupling of such particles.
description: 7 pages, 2 figures, contribution to the 24th European Cosmic Ray Symposium, v2: accepted version
A guide to Open Science in Horizon Europe
Creators: name: Giglia, Elena
Publisher: name: Zenodo
Year: 2021
Subjects: Horizon Europe, Open Science

description: [Major changes in V3, as of Oct.21, 2021 - please consider downloading again] Practical guide to address Open Science issues in Horizon Europe: mandatory and recommended Open Science practices, intellectual property rights and Open practices, rights retention clause to deposit and give immediate access... The infographic has been adapted from https://osf.io/dp6je/ created by the Open science team, Ghent University Library. Thanks to Victoria Tsoukala (EU Commission) and Maria Bellantone (EURAC Bolzano) for their valuable suggestions and to Valentina Pasquale and Giulia Campodonico (IIT Genova) for the final revision.
description: V3: ADDED CLARIFYING EU COMMISSION SLIDES ON MANDATORY/RECOMMENDED PRACTICES. IF YOU DOWNLOADED THE SLIDES BEFORE OCTOBER 21, PLEASE NOTICE THEY ARE QUITE DIFFERENT NOW. V.2: Some important corrections. The relevant section in Part A is "Organization data" and not "Researchers' profile", in Part B "Excellence" and not "Scientific excellence". Specified also the type of actions the Guide refers to (RIA/IA/CSA) and some length suggestions.
title: Exponential Decomposition with Implicit Deconvolution of Lidar Backscatter from the Water Column
Creators: name: Schwarz, Roland
name: Pfeifer, Norbert
name: Pfennigbauer, Martin
name: Ulrich, Andreas
Publisher: name: SPRINGER INTERNATIONAL PUBLISHING AG
Year: 2017
Subjects: laser radar
sea surface
bathymetry
transient response
deconvolution

description: Manuscript to appear in Journal of Photogrammetry, Remote Sensing and Geoinformation Science. The final publication is available at doi:10.1007/s41064-017-0018-z.
description: Bathymetric laser scanning is a powerful tool to obtain information about the morphology of coastal, river, and inland waters. Laser scanning in general is a method to sense the shape of remote objects by sweeping a laser beam across the objects while measuring the distance to every surface point. In bathymetric applications, the electromagnetic light wave also needs to penetrate the water column resulting in a spread reflection from below the surface of the water body complicating the interpretation of the received wave. As the signal seen by the sensor’s receiver is the result of a convolution of the system waveform with the differential backscatter cross section, one approach is to use a deconvolution method to recover the object shape. An alternative approach is to fit a parameterised model to the measured receiver signal. While deconvolution methods are not capable to directly deliver object parameters such as distance to water surface or bottom, modelling methods suffer from neglecting the system waveform. We present a new waveform decomposition method that avoids current shortcomings. The proposed method uses a model composed of segments of exponential functions, which is motivated by the physics of the backscatter process in the water column, and a record of the system waveform which is stored as part of the sensor’s calibration data. The method further consists of an algorithm which evaluates the parameters of the exponential model while, at the same time, performing a deconvolution from the system waveform in an implicit manner. The effectiveness of the method is exemplified using real data from a nearshore airborne LIDAR data acquisition.
Deep tensor networks with matrix product operators
Creators: name: Žunkovič, Bojan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We introduce deep tensor networks, which are exponentially wide neural networks based on the tensor network representation of the weight matrices. We evaluate the proposed method on the image classification (MNIST, FashionMNIST) and sequence prediction (cellular automata) tasks. In the image classification case, deep tensor networks improve our matrix product state baselines and achieve 0.49% error rate on MNIST and 8.3% error rate on FashionMNIST. In the sequence prediction case, we demonstrate an exponential improvement in the number of parameters compared to the one-layer tensor network methods. In both cases, we discuss the non-uniform and the uniform tensor network models and show that the latter generalizes well to different input sizes.
description: 9+2 pages, 8 figures
On Palindromic Widths of Nilpotent and Wreathe Products
Creators: name: Bardakov, Valeriy G.
name: Bryukhanov, Oleg V.
name: Gongopadhyay, Krishnendu
Publisher: name: arXiv
Year: 2015
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We prove that the nilpotent product of a set of groups $A_{1},\dots, A_{s}$ has finite palindromic width if and only if the palindromic widths of $A_{i}, i=1,\dots, s,$ are finite. We give a new proof that the commutator width of $F_n \wr K$ is infinite, where $F_n$ is a free group of rank $n \geq 2$ and $K$ a finite group. This result, combining with a result of Fink \cite{f1} gives examples of groups with infinite commutator width but finite palindromic width with respect to some generating set.
description: re-organized version; references added
Understanding Metadata: A Beginners' Guide for Researchers & Data Stewards
Creators: name: Ünver, Özgün
Publisher: name: Zenodo
Year: 2022
Subjects: Metadata
Research Data Management

description: This is a training guide explaining the basics of "metadata". The target audience of this guide includes both researchers and data stewards along with anyone else interested in learning about metadata. The guide has been deliberately prepared in a presentation format both to facilitate its use during a presentation and to provide ease of use for the reader in case of individual study.
Opportunities for improving feed efficiency and spinal health in New Zealand farmed Chinook salmon (Oncorhynchus tshawytscha) using genomic information
Creators: name: Scholtens, Megan
name: Dodds, Ken
name: Walker, Seumas
name: Clarke, Shannon
name: Tate, Mike
name: Slattery, Trevor
name: Preece, Mark
name: Arratia, Lorena
name: Symonds, Jane
Publisher: name: AgResearch
Year: 2023
Subjects: classificationCode: 300501
subject: Aquaculture
classificationCode: 30
subject: Agricultural, veterinary and food sciences

description: Chinook salmon (Oncorhynchus tshawytscha) is an important aquaculture species in New Zealand and selective breeding since the 1990s has resulted in significant gains in growth related traits. However, feed conversion ratio (FCR) remains highly variable in this species and higher than in other farmed salmonids. Some farmed Chinook salmon are also susceptible to late onset spinal curvature, which further reduces production efficiency. Therefore, the objective of this study was to determine the potential for selecting for improved FCR and reduced spinal curvature while also improving growth. For the evaluation, 82 pedigree families were obtained from two commercial breeding programmes and genotyped using genotyping-by-sequencing to generate a genomic relatedness matrix. Genotyped and tagged juveniles were reared together for 12 months in seawater trial tanks up to ∼2.0 Kg. Multiple assessments of weight, condition factor (CF), feed intake (FI), FCR and skeletal deformity were completed and analysed to estimate genetic parameters (heritability, phenotypic and genetic correlations). High heritabilities were estimated for weight and CF and moderate for spinal curvature. Growth, feed intake and FCR traits had low to moderate heritabilities and demonstrated potential for improvement through selection. Genetic correlations suggested some progress in FCR would be made through selection for growth, but larger gains will be achieved by quantifying FI. An unfavourable genetic correlation was uncovered between CF and spinal curvature and this should be considered when developing breeding goals for commercial broodstock selection.
Modified gravity from the nonperturbative quantization of a metric
Creators: name: Dzhunushaliev, Vladimir
name: Folomeev, Vladimir
name: Kleihaus, Burkhard
name: Kunz, Jutta
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Based on certain assumptions for the expectation value of a product of the quantum fluctuating metric at two points, the gravitational and scalar field Lagrangians are evaluated. Assuming a vanishing expectation value of the first order terms of the metric, the calculations are performed with an accuracy of second order. It is shown that such quantum corrections give rise to modified gravity.
description: Appendix B is added
On Achievable Rates for Long-Haul Fiber-Optic Communications
Creators: name: Fehenberger, Tobias
name: Alvarado, Alex
name: Bayvel, Polina
name: Hanik, Norbert
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Lower bounds on mutual information (MI) of long-haul optical fiber systems for hard-decision and soft-decision decoding are studied. Ready-to-use expressions to calculate the MI are presented. Extensive numerical simulations are used to quantify how changes in the optical transmitter, receiver, and channel affect the achievable transmission rates of the system. Special emphasis is put to the use of different quadrature amplitude modulation formats, channel spacings, digital back-propagation schemes and probabilistic shaping. The advantages of using MI over the prevailing $Q$-factor as a figure of merit of coded optical systems are also highlighted.
description: Hard decision mutual information analysis added, two typos corrected
The EAGLE simulations of galaxy formation: calibration of subgrid physics and model variations
Creators: name: Crain, Robert A.
name: Schaye, Joop
name: Bower, Richard G.
name: Furlong, Michelle
name: Schaller, Matthieu
name: Theuns, Tom
name: Vecchia, Claudio Dalla
name: Frenk, Carlos S.
name: McCarthy, Ian G.
name: Helly, John C.
name: Jenkins, Adrian
name: Rosas-Guevara, Yetli M.
name: White, Simon D. M.
name: Trayford, James W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present results from thirteen cosmological simulations that explore the parameter space of the "Evolution and Assembly of GaLaxies and their Environments" (EAGLE) simulation project. Four of the simulations follow the evolution of a periodic cube L = 50 cMpc on a side, and each employs a different subgrid model of the energetic feedback associated with star formation. The relevant parameters were adjusted so that the simulations each reproduce the observed galaxy stellar mass function at z = 0.1. Three of the simulations fail to form disc galaxies as extended as observed, and we show analytically that this is a consequence of numerical radiative losses that reduce the efficiency of stellar feedback in high-density gas. Such losses are greatly reduced in the fourth simulation - the EAGLE reference model - by injecting more energy in higher density gas. This model produces galaxies with the observed size distribution, and also reproduces many galaxy scaling relations. In the remaining nine simulations, a single parameter or process of the reference model was varied at a time. We find that the properties of galaxies with stellar mass
description: Accepted for publication by MNRAS. v2: minor changes from submitted manuscript
title: Torture
Creators: name: Redazione Krypton
Publisher: name: Roma Tre-Press
Year: 2014

description: Il copioso utilizzo delle torture attraverso i secoli ha naturalmente suscitato la riflessione di molti pensatori, filosofi e letterati, ispirando parallelamente e analogamente varie forme di rappresentazione, dai risvolti non di rado aperti e ambigui. L’insieme di queste rappresentazioni, il dibattito sorto attorno alla sua natura e al suo utilizzo, hanno fatto sì che la tortura uscisse da quel cono d’ombra in cui il Potere avrebbe voluto relegarla, divenendo un soggetto spinoso le cui connotazioni etiche non smettono di essere assai problematiche.

description: KRYPTON – VOL.3 – 2014 – TORTURE
Intersections of S-branes with Waves and Monopoles
Creators: name: Besken, Mert
name: Deger, Nihat Sadik
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct intersections of S-branes with waves and Kaluza-Klein monopoles. There are several possible ways to add a monopole to an S-brane solution similar to p-branes. On the other hand, one may add a wave only to the transverse space of an S-brane unlike a p-brane where wave resides on its worldvolume. The metric function of the wave is a harmonic function of the remaining transverse directions and an extra condition on integration constants is needed. We also show that it is not possible to add an S-brane to p-brane intersections whose near horizon geometry has an AdS part.
description: 15 pages, typos corrected