cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Macroeconomic forecasting through news, emotions and narrative
Creators: name: Tilly, Sonja
name: Ebner, Markus
name: Livan, Giacomo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: This study proposes a new method of incorporating emotions from newspaper articles into macroeconomic forecasts, attempting to forecast industrial production and consumer prices leveraging narrative and sentiment from global newspapers. For the most part, existing research includes positive and negative tone only to improve macroeconomic forecasts, focusing predominantly on large economies such as the US. These works use mainly anglophone sources of narrative, thus not capturing the entire complexity of the multitude of emotions contained in global news articles. This study expands the existing body of research by incorporating a wide array of emotions from newspapers around the world - extracted from the Global Database of Events, Language and Tone (GDELT) - into macroeconomic forecasts. We present a thematic data filtering methodology based on a bi-directional long short term memory neural network (Bi-LSTM) for extracting emotion scores from GDELT and demonstrate its effectiveness by comparing results for filtered and unfiltered data. We model industrial production and consumer prices across a diverse range of economies using an autoregressive framework, and find that including emotions from global newspapers significantly improves forecasts compared to three autoregressive benchmark models. We complement our forecasts with an interpretability analysis on distinct groups of emotions and find that emotions associated with happiness and anger have the strongest predictive power for the variables we predict.
description: 12 pages, 2 figures, 9 tables
The VIP Experiment
Creators: name: Bartalucci, S.
name: Bertolucci, S.
name: Bragadireanu, M.
name: Bucci, C.
name: Cargnelli, M.
name: Catitti, M.
name: Curceanu, C.
name: Di Matteo, S.
name: Egger, J. -P.
name: Ferrari, N.
name: Fuhrmann, H.
name: Guaraldo, C.
name: Iliescu, M.
name: Ishiwatari, T.
name: Laubenstein, M.
name: Marton, J.
name: Milotti, E.
name: Pietreanu, D.
name: Ponta, T.
name: Sirghi, D.
name: Sirghi, F.
name: Sperandio, L.
name: Widmann, E.
name: Zmeskal, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Pauli Exclusion Principle (PEP) is a basic principle of Quantum Mechanics, and its validity has never been seriously challenged. However, given its importance, it is very important to check it as thoroughly as possible. Here we describe the VIP (Violation of PEP) experiment, an improved version of the Ramberg and Snow experiment (Ramberg and Snow, Phys. Lett. B238 (1990) 438); VIP shall be performed at the Gran Sasso underground laboratories, and aims to test the Pauli Exclusion Principle for electrons with unprecedented accuracy, down to $\frac{β^2}{2} \sim 10^{-30}$
description: 7 pages, 5 figures, PDF only, presented by Edoardo Milotti to the conference "Quantum Theory: reconsideration of foundations-3", Vaxjo (Sweden), June, 6-11 2005
title: The synthesis and characterisation of optimised supramolecular hydrogels toward cell culture
Creators: name: Amaro-Villegas, Miguel
Publisher: name: University of Kent
Year: 2023

description: Hydrogels are materials in quotidian life, such as food, shower gels, contact lenses, hygiene, personal care, or medicines. Mainly, supramolecular hydrogels have been studied for their use in biomedical applications such as drug delivery and tissue regeneration because they interact and mimic the cell environment. 

This project focuses on designing and developing new gelators formed by a biomolecule, such as a monosaccharide or a peptide conjugated with an aromatic moiety. Monosaccharides and peptides are highly biocompatible and biodegradable. They show low toxicity and good bio-recognition as well as are enantiomeric molecules. Several reaction conditions and purification processes were studied for optimisation to obtain these LMWGs. These molecules were characterised by multiple techniques such as NMR, MS, FTIR, and optical rotation to confirm their structure, conformation, and purity. Some LMWGs were studied regarding their ability to form hydrogels in water and different aqueous solutions and gelation conditions to improve the solubility of these gelators. Properties such as the minimum gelation concentration (MGC), gel-solution transition temperature (Tgel-sol), and stability over time at room temperature and 37 ºC were studied. Hydrogels and xerogels were characterised by a wide range of techniques such as electronic microscopy to confirm their morphology, rheology to know mechanical properties, and spectroscopic techniques such as UV-Vis absorbance, 2D/3D optical density, fluorescence, and circular dichroism (CD) to show the presence of self-assembling via supramolecular interactions. A selection of hydrogels was tested in MCF-7 and Jurkat T cell lines for biocompatibility to assign a potential biomedical application. 

New synthetic and purification conditions successfully obtained the desired gelators in an excellent yield. These gelators could form supramolecular hydrogels by different aqueous media using gelation triggers, although the solubility profile of these molecules needs to be improved. The characterisation of the hydrogels by other techniques showed their several properties.
Search for the vector-like top quark $T$ at the future linac-ring type $ep$ collider
Creators: name: Yue, Chong-Xing
name: Zhang, Feng
name: Wang, Wei
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The little Higgs models typically contain a new vector-like top quark $T$, which plays a key role in breaking the electroweak symmetry. In the context of the littlest Higgs (LH) model, we study single production of this kind of new particle via the process $ep\to eb\to ν_{e}T$ in the future linac-ring type $ep$ collider (LC$\bigotimes LHC$). We find that the production cross section is in the range of $1.2\times 10^{-4}$-- 0.48 $pb$ at the $LC\bigotimes LHC$ with $\sqrt{s}=3.7$ $TeV$.
description: latex files, 9 pages, 2 figures
The Effect of Sequencing Trade and Water Market Reform on Interest Groups in Irrigated Agriculture: An Intertemporal Economy-Wide Analysis of the Moroccan Case
Creators: name: Diao, Xinshen
name: Roe, Terry L.
name: Diao, Xinshen
name: Roe, Terry L.
Publisher: name: Unknown
Year: 1998
Subjects: subject: International Relations/Trade
subject: Resource /Energy Economics and Policy
subject: Water Markets
subject: Trade Reform. Dynamic General Equilibrium
subject: O41

description: Many of the import competing sectors in Moroccan agriculture are protected while water in irrigated agriculture is priced below its marginal value product. Establishing a water market in this pre-trade reform environment can be welfare decreasing. Further, as the shadow price of water is sensitive to the crops protected by trade policy, farmers growing crops protected pre-trade reform can be made worse off post reform. The resulting decline in rents to sector resources is a source of interest group conflict that can slow the overall reform process. Using an intertemporal general equilibrium model, the paper analyzes the economy-wide effects of the linkages between trade reform and the reform of water markets in irrigated agriculture. We find a strong investment and growth response to the trade reform, and a reallocation of resources to the production of fruit and vegetable crops, for which Morocco has a strong comparative advantage. Trade reform is found to actually create an opportunity to introduce water pricing reforms. Creating a water user-rights market post trade reform not only compensates partially for the decline in rents to protected crops, but also raises the efficiency of water allocation and hence benefits the economy as a whole.
Bosonization and Vertex Algebras with Defects
Creators: name: Mintchev, Mihail
name: Sorba, Paul
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The method of bosonization is extended to the case when a dissipationless point-like defect is present in space-time. Introducing the chiral components of a massless scalar field, interacting with the defect in two dimensions, we construct the associated vertex operators. The main features of the corresponding vertex algebra are established. As an application of this framework we solve the massless Thirring model with defect. We also construct the vertex representation of the sl(2) Kac-Moody algebra, describing the complex interplay between the left and right sectors due to the interaction with the defect. The Sugawara form of the energy-momentum tensor is also explored.
description: 23 pages, 1 figure
From Symmetric Product CFTs to ${\rm AdS}_3$
Creators: name: Gaberdiel, Matthias R.
name: Gopakumar, Rajesh
name: Knighton, Bob
name: Maity, Pronobesh
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Correlators in symmetric orbifold CFTs are given by a finite sum of admissible branched covers of the 2d spacetime. We consider a Gross-Mende like limit where all operators have large twist, and show that the corresponding branched covers can be described via a Penner-like matrix model. The limiting branched covers are given in terms of the spectral curve for this matrix model, which remarkably turns out to be directly related to the Strebel quadratic differential on the covering space. Interpreting the covering space as the world-sheet of the dual string theory, the spacetime CFT correlator thus has the form of an integral over the entire world-sheet moduli space weighted with a Nambu-Goto-like action. Quite strikingly, at leading order this action can also be written as the absolute value of the Schwarzian of the covering map. Given the equivalence of the symmetric product CFT to tensionless string theory on ${\rm AdS}_3$, this provides an explicit realisation of the underlying mechanism of gauge-string duality originally proposed in arXiv:hep-th/0504229 and further refined in arXiv:0803.2681.
description: 36 pages, 4 figures
Human Capital, Population Growth and Economic Development: Beyond Correlations
Creators: name: Rosenzweig, Mark R.
name: Rosenzweig, Mark R.
Publisher: name: Unknown
Year: 1987
Subjects: International Development
Labor and Human Capital

description: Empirical evidence on three assertions commonly-made by population policy advocates about the relationships among population growth, human capital formation and economic development is discussed and evaluated in the light of economic-biological models of household behavior and of its relevance to population policy. The three assertions are that (a) population growth and human capital investments jointly reflect and respond to changes in the economic environment, (b) larger families directly impede human capital formation, and (c) the inability of couples to control fertility is an important determinant of investment in human capital. The evidence suggests that widely-observed correlations among population growth, human capital and economic variables, which admit to alternative interpretations, are far stronger than are the estimates from studies whose objective is to quantify the causal mechanisms underlying the three assertions; however, there is empirical support for each.
Fast contact evolution for piecewise smooth surfaces
Creators: name: Kry, Paul G.
Publisher: name: University of British Columbia
Year: 2009

description: Dynamics simulation of smooth bodies in contact is a critical problem in physically based animation and interactive virtual environments. We describe a technique which uses reduced coordinates to evolve a single continuous contact between Loop subdivision surfaces. The incorporation of both slip and no-slip friction into our algorithm is straightforward. The dynamics equations, though slightly more complex due to the reduced coordinate formulation, can be integrated easily using explicit integrators without the need for constraint stabilization. The use of reduced coordinates also confines integration errors to lie within the constraint manifold which is preferable for visualization. Our algorithm is suitable for piecewise parametric or parameterizable surfaces with polygonal domain boundaries. Because a contact will not always remain in the same patch, we demonstrate how a contact can be evolved across patch boundaries. We also address the issue of non-regular parameterizations occurring in Loop subdivision surfaces through surface replacement with n sided S-patch surfaces. Three simulations show our results. We partially verify our technique first with a frictionless system and then with a blob sliding and rolling inside a bowl. Our third simulation shows that our formulation correctly predicts the spin reversal of a rattleback top. We also present timings of the various components of the algorithm.
MANAGING LEGAL RISKS IN REMOTE LEGAL SERVICE DELIVERY
Creators: name: Romanov Farxad Abdulxamitovich Manager of "Romanov advokat xizmeti"  law firm, advocate
Publisher: name: Zenodo
Year: 2024

description: The article analyzes key legal risks arising in remote legal services, including threats to client data confidentiality, reduced quality of legal advice, fraud risks and increased professional liability for lawyers. It examines the relevance of this issue given the growing demand for remote legal services and lack of adequate regulation in this sphere. Specific ways to minimize the identified risks are proposed, including using secure communication channels, developing clear remote working rules, enhancing lawyer qualifications, insuring risks, implementing ratings and transparency. Overall, a proactive approach is needed to tap the benefits of remote legal services while managing confidentiality, quality, fraud and liability hazards through appropriate policies, procedures and technology use.

Keywords:

remote legal services, legal risks, data confidentiality, quality of legal advice, cybersecurity, professional liability, fraud, legal regulation, risk insurance, ratings and transparency
Searching for axion-like particle decay in the near-infrared background: an updated analysis
Creators: name: Caputo, Andrea
name: Vittino, Andrea
name: Fornengo, Nicolao
name: Regis, Marco
name: Taoso, Marco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The extragalactic background light is comprised of the cumulative radiation from all galaxies across the history of the universe. The angular power spectrum of the anisotropies of such a background at near-infrared (IR) frequencies lacks of a complete understanding and shows a robust excess which cannot be easily explained with known sources. Dark matter in the form of axion-like particles (ALPs) with a mass around the electronvolt will decay into two photons with wavelengths in the near-IR band, possibly contributing to the background intensity. We compute the near-IR background angular power spectrum including emissions from galaxies, as well as the contributions from the intra-halo light and ALP decay, and compare it to measurements from the Hubble Space Telescope and Spitzer. We find that the preferred values for the ALP mass and ALP-photon coupling to explain the excess are in tension with star cooling data and observations of dwarf spheroidal galaxies.
description: Appendices added; version published in JCAP
Marginal Deformations with U(1)^3 Global Symmetry
Creators: name: Ahn, Changhyun
name: Vazquez-Poritz, Justin F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We generate new 11-dimensional supergravity solutions from deformations based on U(1)^3 symmetries. The initial geometries are of the form AdS_4 x Y_7, where Y_7 is a 7-dimensional Sasaki-Einstein space. We consider a general family of cohomogeneity one Sasaki-Einstein spaces, as well as the recently-constructed cohomogeneity three L^{p,q,r,s} spaces. For certain cases, such as when the Sasaki-Einstein space is S^7, Q^{1,1,1} or M^{1,1,1}, the deformed gravity solutions correspond to a marginal deformation of a known dual gauge theory.
description: 28pp; Refs. added and to appear in JHEP
Orbital ac spin-Hall effect in the hopping regime
Creators: name: Entin-Wohlman, O.
name: Aharony, A.
name: Galperin, Y. M.
name: Kozub, V. I.
name: Vinokur, V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The Rashba and Dresselhaus spin-orbit interactions are both shown to yield the low temperature spin-Hall effect for strongly localized electrons coupled to phonons. A frequency-dependent electric field ${\bf E}(ω)$ generates a spin-polarization current, normal to ${\bf E}$, due to interference of hopping paths. At zero temperature the corresponding spin-Hall conductivity is real and is proportional to $ω^{2}$. At non-zero temperatures the coupling to the phonons yields an imaginary term proportional to $ω$. The interference also yields persistent spin currents at thermal equilibrium, at ${\bf E}=0$. The contributions from the Dresselhaus and Rashba interactions to the interference oppose each other.
description: 4 pages, no figures
Neutrino mass as a consequence of the exact solution of 3-3-1 gauge models without exotic electric charges
Creators: name: Palcu, Adrian
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The unjustly neglected method of exactly solving generalized electro-weak models - with an original spontaneous symmetry breaking mechanism based on the gauge group $SU(n)_{L}\otimes U(1)_{Y}$ - is applied here to a particular class of chiral 3-3-1 models. This procedure enables us - without resorting to any approximation - to express the boson mass spectrum and charges of the particles involved therein as a straightforward consequence of both a proper parametrization of the Higgs sector and a new generalized Weinberg transformation. We prove that the resulting values can be accommodated to the experimental ones just by tuning a sole parameter. Furthermore, if we take into consideration both the left-handed and right-handed components of the neutrino (included in a lepton triplet along with their corresponding left-handed charged partner) then we are in the position to propose an original method for the neutrino to acquire a very small but non-zero mass without spoiling the previously achieved results in the exact solution of the model. In order to be compatible with the existing phenomenological data, the range of that sole parameter imposes in our method a large order of magnitude for the VEV $\sim10^{6}$ TeV. Consequently, the new bosons of the model have to be very massive. PACS numbers: 14.60.St; 12.60.Cn; 12.60.Fr
description: 15 pages, no figures
TextGrids year 4
Creators: name: Beier, Christine
name: Farmer, Stephanie
name: Mosoline Ríos, Hermelinda
name: Skilton, Amalia Horan
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2016
Subjects: subject: ore
subject: Máíhĩ̵̀kì language

description: All TextGrids associated with the recordings of consultant Hermelinda Mogica Ríos made during year 4
GRAFIK FANLARNI O'RGANISHDA ELEKTRON DARSLIKLARDAN FOYDALANISH XUSUSIYATLARI
Creators: name: Axmedova, Shaxnoza
name: Samatova, Kamola
Publisher: name: Zenodo
Year: 2024

description: Hozirgi vaqtda elektron darsliklardan foydalanish juda foydali. Ular  nafaqat axborot faolligini oshiradi, fikrlash va vaqtni tejash balki mantiqiy faoliyatni rivojlantirishga yordam beradi. Elektron darslik didaktik usuldir axborot texnologiyalaridan foydalanish va ularni rag'batlantirishda alohida rol o'ynaydi.
The Cosmological Optical Theorem
Creators: name: Goodhew, Harry
name: Jazayeri, Sadra
name: Pajer, Enrico
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The unitarity of time evolution, or colloquially the conservation of probability, sits at the heart of our descriptions of fundamental interactions via quantum field theory. The implications of unitarity for scattering amplitudes are well understood, for example through the optical theorem and cutting rules. In contrast, the implications for in-in correlators in curved spacetime and the associated wavefunction of the universe, which are measured by cosmological surveys, are much less transparent. For fields of any mass in de Sitter spacetime with general local interactions, which need not be invariant under de Sitter isometries, we show that unitarity implies an infinite set of relations among the coefficients $ ψ_{n} $ of the wavefunction of the universe with $ n $ fields, which we name Cosmological Optical Theorem. For contact diagrams, our result dictates the analytic structure of $ ψ_{n} $ and strongly constrains its form. For example, any correlator with an odd number of conformally-coupled scalar fields and any number of massless scalar fields must vanish. For four-point exchange diagrams, the Cosmological Optical Theorem yields a simple and powerful relation between $ ψ_{3} $ and $ ψ_{4} $, or equivalently between the bispectrum and trispectrum. As explicit checks of this relation, we discuss the trispectrum in single-field inflation from graviton exchange and self-interactions. Moreover, we provide a detailed derivation of the relation between the total-energy pole of cosmological correlators and flat-space amplitudes. We provide analogous formulae for sub-diagram singularities. Our results constitute a new, powerful tool to bootstrap cosmological correlators.
description: 37+19 pages, 4 figures
Synthesizing Optical and SAR Imagery From Land Cover Maps and Auxiliary Raster Data
Creators: name: Baier, Gerald
name: Deschemps, Antonin
name: Schmitt, Michael
name: Yokoya, Naoto
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We synthesize both optical RGB and synthetic aperture radar (SAR) remote sensing images from land cover maps and auxiliary raster data using generative adversarial networks (GANs). In remote sensing, many types of data, such as digital elevation models (DEMs) or precipitation maps, are often not reflected in land cover maps but still influence image content or structure. Including such data in the synthesis process increases the quality of the generated images and exerts more control on their characteristics. Spatially adaptive normalization layers fuse both inputs and are applied to a full-blown generator architecture consisting of encoder and decoder to take full advantage of the information content in the auxiliary raster data. Our method successfully synthesizes medium (10 m) and high (1 m) resolution images when trained with the corresponding data set. We show the advantage of data fusion of land cover maps and auxiliary information using mean intersection over unions (mIoUs), pixel accuracy, and Fréchet inception distances (FIDs) using pretrained U-Net segmentation models. Handpicked images exemplify how fusing information avoids ambiguities in the synthesized images. By slightly editing the input, our method can be used to synthesize realistic changes, i.e., raising the water levels. The source code is available at https://github.com/gbaier/rs_img_synth and we published the newly created high-resolution dataset at https://ieee-dataport.org/open-access/geonrw.
A coupled finite volume and material point method for two-phase simulation of liquid-sediment and gas-sediment flows
Creators: name: Baumgarten, Aaron S.
name: Couchman, Benjamin L. S.
name: Kamrin, Ken
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Mixtures of fluids and granular sediments play an important role in many industrial, geotechnical, and aerospace engineering problems, from waste management and transportation (liquid--sediment mixtures) to dust kick-up below helicopter rotors (gas--sediment mixtures). These mixed flows often involve bulk motion of hundreds of billions of individual sediment particles and can contain both highly turbulent regions and static, non-flowing regions. This breadth of phenomena necessitates the use of continuum simulation methods, such as the material point method (MPM), which can accurately capture these large deformations while also tracking the Lagrangian features of the flow (e.g.\ the granular surface, elastic stress, etc.). Recent works using two-phase MPM frameworks to simulate these mixtures have shown substantial promise; however, these approaches are hindered by the numerical limitations of MPM when simulating pure fluids. In addition to the well-known particle ringing instability and difficulty defining inflow/outflow boundary conditions, MPM has a tendency to accumulate quadrature errors as materials deform, increasing the rate of overall error growth as simulations progress. In this work, we present an improved, two-phase continuum simulation framework that uses the finite volume method (FVM) to solve the fluid phase equations of motion and MPM to solve the solid phase equations of motion, substantially reducing the effect of these errors and providing better accuracy and stability for long-duration simulations of these mixtures.
Long-term observations of Uranus and Neptune at 90 GHz with the IRAM 30m telescope - (1985 -- 2005)
Creators: name: Kramer, C.
name: Moreno, R.
name: Greve, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The planets Uranus and Neptune with small apparent diameters are primary calibration standards. We investigate their variability at ~90 GHz using archived data taken at the IRAM 30m telescope during the 20 years period 1985 to 2005. We calibrate the planetary observations against non-variable secondary standards (NGC7027, NGC7538, W3OH, K3-50A) observed almost simultaneously. Between 1985 and 2005, the viewing angle of Uranus changed from south-pole to equatorial. We find that the disk brightness temperature declines by almost 10% (~2sigma) over this time span indicating that the south-pole region is significantly brighter than average. Our finding is consistent with recent long-term radio observations at 8.6 GHz by Klein & Hofstadter (2006). Both data sets do moreover show a rapid decrease of the Uranus brightness temperature during the year 1993, indicating a temporal, planetary scale change. We do not find indications for a variation of Neptune's brightness temperature at the 8% level. If Uranus is to be used as calibration source, and if accuracies better than 10% are required, the Uranus sub-earth point latitude needs to be taken into account.
description: accepted for publication in A&A
The densitized lapse ("Taub function") and the Taub time gauge in cosmology
Creators: name: Jantzen, Robert T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The role of the Taub time gauge in cosmology is linked to the use of the densitized lapse function instead of the lapse function in the variational principle approach to the Einstein equations. The spatial metric variational equations then become the Ricci evolution equations, which are then supplemented by the Einstein constraints which result from the variation with respect to the densitized lapse and the usual shift vector field. In those spatially homogeneous cases where the least disconnect occurs between the general theory and the restricted symmetry scenario, the recent adjustment of the conformal approach to solving the initial value problem resulting from densitized lapse considerations is seen to be inherent in the use of symmetry-adapted metric variables. The minimal distortion shift vector field is a natural vector potential for the new York thin sandwich initial data approach to the constraints, which in this case corresponds to the diagonal spatial metric gauge. For generic spacetimes, the new approach suggests defining a new minimal distortion shift gauge which agrees with the old gauge in the Taub time gauge, but which also makes its defining differential equation agree with the vector potential equation for solving the supermomentum constraint in any time gauge.
description: 22 pages, Latex article style, no figures
D2.2 - State-of-the-Art of AI implementation in Childhood Cancer
Creators: name: Colantonio, Erica
name: Dell'Anna, Vito Andrea
name: Eckley, Megan
name: Fabozzi, Francesco
name: Mastronuzzi, Angela
name: Tozzi, Alberto E
name: Alvarez, Arturo
Publisher: name: Zenodo
Year: 2022

description: A review of data from a bibliometric analysis, an analysis of existing reviews and ongoing projects registered in published repositories, show that AI applications in pediatric oncology are mostly limited to classification of diagnostic images in brain tumors. Data from MRI are the most used for this purpose while other data sources are less frequent in AI applications. Only a small proportion of existing studies on AI in pediatric oncology has compared the accuracy of AI algorithms with a natural person. Many registries for pediatric oncology exist in Europe, representing potential data sources for the development of AI applications. Data included in these repositories, however, are not harmonized, although several initiative have been carried out in Europe to pool together different registries for developing AI applications. Data sharing from clinical repositories among research centers is rarely accomplished due to complexity in internal policies and a restrictive interpretation of GDPR. The development of AI applications poses several ethical issues, from transparency of the algorithms to cybersecurity risks, that deserve a multidisciplinary approach. These issues are reflected in the communication process with the patient and ultimately in the informed consent. Finally, the application of AI in telemedicine for pediatric cancer seems unexplored. These results suggest that a strong impulse to overcome barriers in data sharing for developing AI for pediatric oncology is needed, that the use of AI should be evaluated in the full spectrum of cancer diseases in children using solutions at diagnostic, prognostic or therapeutic level, including telemedicine. Finally, since children with cancer represent a fragile population affected by rare diseases, tailored approaches to investigate the ethical implications of AI should be developed.
description: This project has received funding from the European Union's Call for Pilot Projects and Preparatory Actions (PPPA) under Grant Agreement No 101018783
Self-Consistent MHD Modeling of a Coronal Mass Ejection, Coronal Dimming, and a Giant Cusp-Shaped Arcade Formation
Creators: name: Shiota, Daikou
name: Isobe, Hiroaki
name: Chen, P. F.
name: Yamamoto, Tetsuya T.
name: Sakajiri, Takuma
name: Shibata, Kazunari
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We performed magnetohydrodynamic simulation of coronal mass ejections (CMEs) and associated giant arcade formations, and the results suggested new interpretations of observations of CMEs. We performed two cases of the simulation: with and without heat conduction. Comparing between the results of the two cases, we found that reconnection rate in the conductive case is a little higher than that in the adiabatic case and the temperature of the loop top is consistent with the theoretical value predicted by the Yokoyama-Shibata scaling law. The dynamical properties such as velocity and magnetic fields are similar in the two cases, whereas thermal properties such as temperature and density are very different.In both cases, slow shocks associated with magnetic reconnectionpropagate from the reconnection region along the magnetic field lines around the flux rope, and the shock fronts form spiral patterns. Just outside the slow shocks, the plasma density decreased a great deal. The soft X-ray images synthesized from the numerical results are compared with the soft X-ray images of a giant arcade observed with the Soft X-ray Telescope aboard {\it Yohkoh}, it is confirmed that the effect of heat conduction is significant for the detailed comparison between simulation and observation. The comparison between synthesized and observed soft X-ray images provides new interpretations of various features associated with CMEs and giant arcades.
description: 39 pages, 18 figures. Accepted for publication in the Astrophysical Journal. The PDF file with high resplution figures can be downloaded from http://www.kwasan.kyoto-u.ac.jp/~shiota/study/ApJ62426.preprint.pdf"
The magnetic effect on strongly correlated system with two currents near the QCP from holography
Creators: name: Lee, Jaeha
name: Sin, Sang-Jin
name: Song, Geunho
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the magnetic effect in strongly interacting system with two conserved currents near the quantum critical point (QCP). For this purpose, we introduce the hyper-scaling violation geometry with the blackhole. Considering the perturbation near the background geometry, we compute the transport coefficients using holographic methods. We calculated the magneto-transport for general QCP and discuss the special point $(z,θ)=(3/2,1)$ where the data of Dirac material were well-described previously.
description: 10 pages, 4 figures
Time-Dependent Density-Functional Theory for the Stopping Power of an Interacting Electron Gas for Slow Ions
Creators: name: Nazarov, V. U.
name: Pitarke, J. M.
name: Kim, C. S.
name: Takada, Y.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Based on the time-dependent density-functional theory, we have derived a rigorous formula for the stopping power of an {\it interacting} electron gas for ions in the limit of low projectile velocities. If dynamical correlation between electrons is not taken into account, this formula recovers the corresponding stopping power of {\it noninteracting} electrons in an effective Kohn-Sham potential. The correlation effect, specifically the excitonic one in electron-hole pair excitations, however, is found to considerably enhance the stopping power for intermediately charged ions, bringing our theory into good agreement with experiment.
description: 4 pages, 1 figure, Accepted to Phys. Rev. B (Rapid Communication)
title: Klimawandelanpassung in der Moselregion. Abschlussbroschüre des Projektes MoselAdapTiV
Creators: name: Bruns, Antje
name: Niewind, Jens
name: Wiegleb, Viviana
Publisher: name: Universität Trier
Year: 2023
Subjects: subject: Mittelmoseltal
valueUri: http://d-nb.info/gnd/4224989-2
subject: Traben-Trarbach Region
valueUri: http://d-nb.info/gnd/7593251-9
subject: Klimaänderung
valueUri: http://d-nb.info/gnd/7593251-9
subject: Tourismus
valueUri: http://d-nb.info/gnd/4018406-7
subject: Weinbau
valueUri: http://d-nb.info/gnd/4065136-8
subject: Anpassung
valueUri: http://d-nb.info/gnd/4128128-7

description: Das Praxisprojekt „Mosel-AdapTiV“ verfolgt das Ziel, die Klimaanpassungskompetenz der Mosel-Kommune Traben-Trarbach zu erhöhen. Die Abschlussbroschüre fasst zentrale Ergebnisse und Berichte zusammen.
Alphadon Simpson 1927
Creators: name: Sahni, Ashok
Publisher: name: Zenodo
Year: 1972
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Didelphimorphia
Didelphidae
Alphadon

description: ALPHADON SIMPSON, 1927b
Alphadon SIMPSON, 1927b, p. 125.
Alphadon: CLEMENS, 1966, p. 5.
description: Published as part of Sahni, Ashok, 1972, The vertebrate Fauna of the Judith River formation, Montana, pp. 319-416 in Bulletin of the American Museum of Natural History 147 (6) on page 378, DOI: 10.5281/zenodo.3382461
Revisiting the tension between fast bars and the $Λ$CDM paradigm
Creators: name: Fragkoudi, Francesca
name: Grand, Robert J. J.
name: Pakmor, Ruediger
name: Springel, Volker
name: White, Simon D. M.
name: Marinacci, Federico
name: Gomez, Facundo A.
name: Navarro, Julio F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The pattern speed with which galactic bars rotate is intimately linked to the amount of dark matter in the inner regions of their host galaxies. In particular, dark matter haloes act to slow down bars via torques exerted through dynamical friction. Observational studies of barred galaxies tend to find that bars rotate fast, while hydrodynamical cosmological simulations of galaxy formation and evolution in the $Λ$CDM framework have previously found that bars slow down excessively. This has led to a growing tension between fast bars and the $Λ$CDM cosmological paradigm. In this study we revisit this issue, using the Auriga suite of high resolution, magneto-hydrodynamical cosmological zoom-in simulations of galaxy formation and evolution in the $Λ$CDM framework, finding that bars remain fast down to $z=0$. In Auriga, bars form in galaxies that have higher stellar-to-dark matter ratios and are more baryon-dominated than in previous cosmological simulations; this suggests that in order for bars to remain fast, massive spiral galaxies must lie above the commonly used abundance matching relation. While this reduces the aforementioned tension between the rotation speed of bars and $Λ$CDM, it accentuates the recently reported discrepancy between the dynamically inferred stellar-to-dark matter ratios of massive spirals and those inferred from abundance matching. Our results highlight the potential of using bar dynamics to constrain models of galaxy formation and evolution.
description: 5 pages + 4 pages of appendices; 7 figures; Accepted for publication in A&A Letters
Magnetic field processing to enhance critical current densities of MgB2 superconductors
Creators: name: Dou, S. X.
name: Yeoh, W. K.
name: Shcherbakova, O.
name: Horvat, J.
name: Qin, M. J.
name: Li, Y.
name: Ren, Z. M.
name: Munroe, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Magnetic field of up to 12 T was applied during the sintering process of pure MgB2 and carbon nanotube (CNT) doped MgB2 wires. We have demonstrated that magnetic field processing results in grain refinement, homogeneity and significant enhancement in Jc(H) and Hirr. The Jc of pure MgB2 wire increased by up to a factor of 3 to 4 and CNT doped MgB2 by up to an order of magnitude in high field region respectively, compared to that of the non-field processed samples. Hirr for CNT doped sample reached 7.7 T at 20 K. Magnetic field processing reduces the resistivity in CNT doped MgB2, straightens the entangled CNT and improves the adherence between CNTs and MgB2 matrix. No crystalline alignment of MgB2 was observed. This method can be easily scalable for a continuous production and represents a new milestone in the development of MgB2 superconductors and related systems.
СЦЕНАРИЙ ТВ МАҲСУЛОТИНИНГ АСОСИ СИФАТИДА
Creators: name: Сайдуллаева, Нодира
Publisher: name: Zenodo
Year: 2024

description: Кўрсатув тайёрлаш жараёнида муаллиф ва муҳаррир фаолиятининг аҳамияти, мавзу танлаш ва уни яратиш қоидалари, мавзуни очиб бериш омиллари, матн ёзиш ва сценарий тайёрлаш ҳақида фикр-мулоҳазалар берилган.
Invariants of Surfaces in Three-Dimensional Affine Geometry
Creators: name: Arnaldsson, Örn
name: Valiquette, Francis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Using the method of moving frames we analyze the algebra of differential invariants for surfaces in three-dimensional affine geometry. For elliptic, hyperbolic, and parabolic points, we show that if the algebra of differential invariants is non-trivial, then it is generically generated by a single invariant.
Italiaander, Rolf (hrsg.): Indonesiens verantwortliche Gesellschaft
Creators: name: Boeckler, Rolf
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 26 Nr. 1 (1977): Ökumenische Rundschau, Band 26, Heft 1
Comparison of the Halpha equivalent width of HII regions in a flocculent and a grand design galaxy: possible evidences for IMF variations
Creators: name: Cedres, Bernabe
name: Cepa, Jordi
name: Tomita, Akihiko
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present here a study of the Halpha equivalent widths of the flocculent galaxy NGC 4395 and the grand design galaxy NGC 5457. A difference between the mean values of the Halpha equivalent widths for the two galaxies has been found. Several hypotheses are presented in order to explain this difference: differences in age, metallicity, star formation rate, photon leakage and initial mass function. Various tests and Monte Carlo models are used to find out the most probable cause of this difference. The resultsshow that the possible cause for the difference could be a variation in the initial mass function. This difference is such that it seems to favor a fraction of more massive stars in the grand design galaxy when compared with the flocculent galaxy. This could be due to a change of the environmental conditions due to a density wave.
description: 29 pages, 19 figures, accepted for publication in ApJ
Intelligent Controlling Simulation of Traffic Flow in a Small City Network
Creators: name: Fouladvand, M. Ebrahim
name: Shaebani, M. Reza
name: Sadjadi, Zeinab
Publisher: name: arXiv
Year: 2005
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose a two dimensional probabilistic cellular automata for the description of traffic flow in a small city network composed of two intersections. The traffic in the network is controlled by a set of traffic lights which can be operated both in fixed-time and a traffic responsive manner. Vehicular dynamics is simulated and the total delay experienced by the traffic is evaluated within specified time intervals. We investigate both decentralized and centralized traffic responsive schemes and in particular discuss the implementation of the {\it green-wave} strategy. Our investigations prove that the network delay strongly depends on the signalisation strategy. We show that in some traffic conditions, the application of the green-wave scheme may destructively lead to the increment of the global delay.
description: 8 pages, 10 eps figures, Revtex
Trajectory saliency detection using consistency-oriented latent codes from a recurrent auto-encoder
Creators: name: Maczyta, L.
name: Bouthemy, P.
name: Meur, O. Le
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this paper, we are concerned with the detection of progressive dynamic saliency from video sequences. More precisely, we are interested in saliency related to motion and likely to appear progressively over time. It can be relevant to trigger alarms, to dedicate additional processing or to detect specific events. Trajectories represent the best way to support progressive dynamic saliency detection. Accordingly, we will talk about trajectory saliency. A trajectory will be qualified as salient if it deviates from normal trajectories that share a common motion pattern related to a given context. First, we need a compact while discriminative representation of trajectories. We adopt a (nearly) unsupervised learning-based approach. The latent code estimated by a recurrent auto-encoder provides the desired representation. In addition, we enforce consistency for normal (similar) trajectories through the auto-encoder loss function. The distance of the trajectory code to a prototype code accounting for normality is the means to detect salient trajectories. We validate our trajectory saliency detection method on synthetic and real trajectory datasets, and highlight the contributions of its different components. We show that our method outperforms existing methods on several scenarios drawn from the publicly available dataset of pedestrian trajectories acquired in a railway station (Alahi 2014).
On the Correlation between Spin Parameter and Halo Mass
Creators: name: Knebe, Alexander
name: Power, Chris
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on a correlation between virial mass M and spin parameter lambda for dark matter halos forming at redshifts z > 10. We find that the spin parameter decreases with increasing halo mass. Interestingly, our analysis indicates that halos forming at later times do not exhibit such a strong correlation, in agreement with the findings of previous studies. We briefly discuss the implications of this correlation for galaxy formation at high redshifts and the galaxy population we observe today.
description: 7 pages, accepted for publication in ApJ