cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantum-inspired search method for low-energy states of classical Ising Hamiltonians
Creators: name: Ueda, Hiroshi
name: Otsuka, Yuichi
name: Yunoki, Seiji
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a quantum-inspired numerical procedure for searching low-energy states of a classical Hamiltonian composed of two-body fully-connected random Ising interactions and a random local longitudinal magnetic field. In this method, we introduce infinitesimal quantum interactions that do not commute with the original Ising Hamiltonian, and repeatedly generate and truncate direct product states, inspired by the Krylov subspace method, to obtain the low-energy states of the original classical Ising Hamiltonian. The computational cost is controlled by the form of infinitesimal quantum interactions (e.g., one-body or two-body interactions) and the numbers of infinitesimal interaction terms introduced, different initial states considered, and low-energy states kept during the iteration. For a demonstrate of the method, here we introduce as the infinitesimal quantum interactions pair products of Pauli $X$ operators acting on different sites and on-site Pauli $X$ operators into the random Ising Hamiltonian, in which the numerical cost is $O(N^3)$ per iteration with the system size $N$. We consider 120 instances of the random coupling realizations for the random Ising Hamiltonian with $N$ up to 600 and search the 120 lowest-energy states for each instance. We find that the time-to-solution by the quantum-inspired method proposed here, with parallelization in terms of the different initial states, for searching the ground state of the random Ising Hamiltonian scales approximately as $N^5$ for $N$ up to 600. We also examine the basic physical properties such as the ensemble-averaged ground-state and first-excited energies and the ensemble-averaged number of states in the low-energy region of the random Ising Hamiltonian.
description: 13 pages, 11 figures
Dynamical DMRG study of spin and charge excitations in the four-leg t-t'-J ladder
Creators: name: Tohyama, Takami
name: Mori, Michiyasu
name: Sota, Shigetoshi
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The ground state of the t-t'-J ladder with four legs favors a striped charge distribution for the parameters corresponding to hole-doped cuprate superconductors. We investigate the dynamical spin and charge structure factors of the model by using the dynamical density matrix renormalization group (DMRG) and clarify the influence of the stripe on the structure factors. The dynamical charge structure factor along the momentum direction from q=(0,0) to (pi,0) clearly shows low-energy excitations corresponding to the stripe order in hole doping. On the other hand, the stripe order weakens in electron doping, resulting in fewer low-energy excitations in the charge channel. In the spin channel, we find incommensurate spin excitations near q=(pi,pi) forming an hourglass behavior in hole doping, while in electron doping we find clearly spin-wave-like dispersions starting from q=(pi,pi). Along the (0,0)-(pi,0) direction, the spin excitations are strongly influenced by the stripes in hole doping, resulting in two branches that form a discontinuous behavior in the dispersion. In contrast, the electron-doped systems show a downward shift in energy toward (pi,0). These behaviors along the (0,0)-(pi,0) direction are qualitatively similar to momentum-dependent spin excitations recently observed by resonant inelastic x-ray scattering experiments in hole- and electron-doped cuprate superconductors.
description: 8 pages, 6 figures, to be published in Phys. Rev. B
Redigerbar skabelon for en sundhedsvidenskabelig ph.d.-afhandling
Creators: name: Fonnes, Siv
name: Rosenberg, Jacob
Publisher: name: Zenodo
Year: 2023
Subjects: Thesis
PhD
Template
Biomedicine
Article-based

description: Template for writing a PhD thesis

This is a template for a article-based/synopsis PhD thesis that complies with the demands of Danish Graduate Schools of Health Sciences.
New Restrictions on the Topology of Extreme Black Holes
Creators: name: Khuri, Marcus
name: Woolgar, Eric
name: Wylie, William
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We provide bounds on the first Betti number and structure results for the fundamental group of horizon cross-sections for extreme stationary vacuum black holes in arbitrary dimension, without additional symmetry hypotheses. This is achieved by exploiting a correspondence between the associated near-horizon geometries and the mathematical notion of $m$-quasi Einstein metrics, in addition to generalizations of the classical splitting theorem from Riemannian geometry. Consequences are analyzed and refined classifications are given for the possible topologies of these black holes.
description: 11 pages; minor improvements
Redigerbar skabelon for en sundhedsvidenskabelig ph.d.-afhandling
Creators: name: Fonnes, Siv
name: Rosenberg, Jacob
Publisher: name: Zenodo
Year: 2024
Subjects: Thesis
PhD
Template
Biomedicine
Article-based

description: Template for writing a PhD thesis

This is a template for a article-based/synopsis PhD thesis that complies with the demands of Danish Graduate Schools of Health Sciences.
G_2^1 Affine Toda Field Theory: A Numerical Test of Exact S-Matrix results
Creators: name: Watts, G.
name: Weston, R
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present the results of a Monte--Carlo simulation of the $G_2^{(1)}$ Affine Toda field theory action in two dimensions. We measured the ratio of the masses of the two fundamental particles as a function of the coupling constant. Our results strongly support the conjectured duality with the $D_4^{(3)}$ theory, and are consistent with the mass formula of Delius et al.
description: 5 pages, LaTeX, DTP-9223, DAMTP-92-41
Oral Delivery of Lipid Nanoparticles with siRNA for the Treatment of Intestinal Diseases
Creators: name: Ball, Rebecca L.
Publisher: name: Carnegie Mellon University
Year: 2018
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: Intestinal diseases affect millions of people worldwide. Recently, a number of proteins have been shown to be upregulated in the intestinal cells of patients that contribute to disease progression. Therefore, these diseases could be amenable to RNA interference technology (RNAi). Utilizing RNAi to deliver short interfering ribonucleic acid (siRNA) to intestinal cells shows promise for the treatment of diseases by specifically suppressing the expression of disease relevant proteins. A class of lipid nanoparticles termed lipidoid nanoparticles (LNPs) have been shown previously to potently deliver siRNA to several cell types in vitro and in vivo. Here, we seek to establish the utility of lipidoid nanoparticles (LNPs) in the context of oral siRNA delivery to intestinal cells for the treatment of intestinal diseases. Initial in vitro studies demonstrated that the siRNA-loaded LNPs mediated potent, dose dependent, and durable gene silencing in Caco-2 intestinal cells without inducing significant cytotoxicity or altering intestinal barrier function. LNP stability studies revealed that LNPs in an aqueous buffer remained stable for long periods of time when stored in the refrigerator (2 °C) compared to the freezer (-20 °C) or at room temperature. In addition, LNPs remained stable upon lyophilization with the addition of trehalose or sucrose to the LNP solution before freeze-drying. To determine potential for oral LNP delivery, we studied LNP stability under gastrointestinal (GI) tract conditions. LNPs remained potent and stable following exposure to solutions of varied pH, including pH values as low as 1.2. However, efficacy decreased following exposure to increasing concentrations of pepsin and bile salts. Mouse oral biodistribution studies indicated that siRNA-loaded lipid nanoparticles were retained in the GI tract for at least 8 hours. Confocal microscopy confirmed that nanoparticles entered the epithelial cells of the mouse small intestine and colon. Oral LNP therapeutic efficacy was measured in an inflammatory bowel disease (IBD) mouse model by targeting the upregulated genes myosin light chain kinase (MLCK) and Interleukin 18 receptor (IL18R) and were found to prevent some IBD disease progression. Lastly, a formulation for the co-delivery of siRNA and messenger RNA (mRNA) was developed and it was discovered that a negatively charged polymer can be used to improve LNP efficacy. Together, these studies have advanced our knowledge of lipid nanoparticle stability, and potential as an orally delivered intestinal therapeutic.
Integration of a national e-theses online service with institutional repositories
Creators: name: Bunakov, Vasily
name: Madden, Frances
Publisher: name: Zenodo
Year: 2019
Subjects: e-theses
institutional repository
research facility
persistent identifier
EU project

description: We present a use case developed by FREYA project (www.project-freya.eu) for the integration of a national e-theses online service with institutional repositories supported by a big national laboratory. The integration allows us to mutually enrich the e-theses service and institutional repositories with new entities and attributes, and can offer novel ways of reasoning of research outcomes that are supported by direct funding and funding-in-kind by large research facilities. We emphasize the role of persistent identifiers (PIDs) including for entities that are currently not necessarily, or not consistently assigned PIDs.
Reconfigurable topological phases in next-nearest-neighbor coupled resonator lattices
Creators: name: Leykam, Daniel
name: Mittal, S.
name: Hafezi, M.
name: Chong, Y. D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a reconfigurable topological photonic system consisting of a 2D lattice of coupled ring resonators, with two sublattices of site rings coupled by link rings, which can be accurately described by a tight-binding model. Unlike previous coupled-ring topological models, the design is translationally invariant, similar to the Haldane model, and the nontrivial topology is a result of next-nearest couplings with non-zero staggered phases. The system exhibits a topological phase transition between trivial and spin Chern insulator phases when the sublattices are frequency detuned. Such topological phase transitions can be easily induced by thermal or electro-optic modulators, or nonlinear cross phase modulation. We use this lattice to design reconfigurable topological waveguides, with potential applications in on-chip photon routing and switching.
description: 5+5 pages, 3+5 figures, published version
The metabolic domestication syndrome of budding yeast
Creators: name: Tengölics, Roland
name: Szappanos, Balázs
name: Mülleder, Michael
name: Kalapis, Dorottya
name: Grézal, Gábor
name: Sajben, Csilla
name: Agostini, Federica
name: Mokochinski, João Benhur
name: Bálint, Balázs
name: Nagy, László G
name: Ralser, Markus
name: Papp, Balázs
Publisher: name: The Francis Crick Institute
Year: 2024
Subjects: classificationCode: Chemical Biology & High Throughput
subject: Chemical Biology & High Throughput
classificationCode: Ecology,Evolution & Ethology
subject: Ecology,Evolution & Ethology
classificationCode: Metabolism
subject: Metabolism
classificationCode: Computational & Systems Biology
subject: Computational & Systems Biology
classificationCode: Synthetic Biology
subject: Synthetic Biology

description: Cellular metabolism evolves through changes in the structure and quantitative states of metabolic networks. Here, we explore the evolutionary dynamics of metabolic states by focusing on the collection of metabolite levels, the metabolome, which captures key aspects of cellular physiology. Using a phylogenetic framework, we profiled metabolites in 27 populations of nine budding yeast species, providing a graduated view of metabolic variation across multiple evolutionary time scales. Metabolite levels evolve more rapidly and independently of changes in the metabolic network’s structure, providing complementary information to enzyme repertoire. Although metabolome variation accumulates mainly gradually over time, it is profoundly affected by domestication. We found pervasive signatures of convergent evolution in the metabolomes of independently domesticated clades of Saccharomyces cerevisiae. Such recurring metabolite differences between wild and domesticated populations affect a substantial part of the metabolome, including rewiring of the TCA cycle and several amino acids that influence aroma production, likely reflecting adaptation to human niches. Overall, our work reveals previously unrecognized diversity in central metabolism and the pervasive influence of human-driven selection on metabolite levels in yeasts.
Power law analysis for temperature dependence of magnetocrystalline anisotropy constants of Nd$_2$Fe$_{14}$B magnets
Creators: name: Miura, Daisuke
name: Sakuma, Akimasa
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Phenomenological analysis for the temperature dependence of the magnetocrystalline anisotropy (MA) in rare earth magnets is presented. We define phenomenological power laws applicable to compound magnets using the Zener theory, apply these laws to the magnetocrystalline anisotropy constants (MACs) of Nd$_2$Fe$_{14}$B magnets. The results indicate that the MACs obey the power law well, and a general understanding for the temperature-dependent MA in rare earth magnets is obtained through the analysis. Furthermore, to examine the validity of the power law, we discuss the temperature dependence of the MACs in Dy$_2$Fe$_{14}$B and Y$_2$Fe$_{14}$B magnets as examples wherein it is difficult to interpret the MA using the power law.
description: 5pages, 6 figures
Oncilla robot: a versatile open-source quadruped research robot with compliant pantograph legs
Creators: name: Spröwitz, Alexander
name: Tuleu, Alexandre
name: Ajallooeian, Mostafa
name: Vespignani, Massimo
name: Moeckel, Rico
name: Eckert, Peter
name: D'Haene, Michiel
name: Degrave, Jonas
name: Nordmann, Arne
name: Schrauwen, Benjamin
name: Steil, Jochen
name: Ijspeert, Auke Jan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We present Oncilla robot, a novel mobile, quadruped legged locomotion machine. This large-cat sized, 5.1 robot is one of a kind of a recent, bioinspired legged robot class designed with the capability of model-free locomotion control. Animal legged locomotion in rough terrain is clearly shaped by sensor feedback systems. Results with Oncilla robot show that agile and versatile locomotion is possible without sensory signals to some extend, and tracking becomes robust when feedback control is added (Ajaoolleian 2015). By incorporating mechanical and control blueprints inspired from animals, and by observing the resulting robot locomotion characteristics, we aim to understand the contribution of individual components. Legged robots have a wide mechanical and control design parameter space, and a unique potential as research tools to investigate principles of biomechanics and legged locomotion control. But the hardware and controller design can be a steep initial hurdle for academic research. To facilitate the easy start and development of legged robots, Oncilla-robot's blueprints are available through open-source. [...]
On the Lagrangian Realization of the WZNW Reductions
Creators: name: Tsutsui, I.
name: Feher, L.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop a phase space path-integral approach for deriving the Lagrangian realization of the models defined by Hamiltonian reduction of the WZNW theory. We illustrate the uses of the approach by applying it to the models of non-Abelian chiral bosons, $W$-algebras and the GKO coset construction, and show that the well-known Sonnenschein's action, the generalized Toda action and the gauged WZNW model are precisely the Lagrangian realizations of those models, respectively.
description: 15 pages, DIAS-STP-92-09/UdeM-LPN-TH-92-92
Optimizing Optimization: Scalable Convex Programming with Proximal Operators
Creators: name: Wytock, Matt
Publisher: name: Carnegie Mellon University
Year: 2016
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: Convex optimization has developed a wide variety of useful tools critical to many applications in machine learning. However, unlike linear and quadratic programming, general convex solvers have not yet reached sufficient maturity to fully decouple the convex programming model from the numerical algorithms required for implementation. Especially as datasets grow in size, there is a significant gap in speed and scalability between general solvers and specialized algorithms. This thesis addresses this gap with a new model for convex programming based on an intermediate representation of convex problems as a sum of functions with efficient proximal operators. This representation serves two purposes: 1) many problems can be expressed in terms of functions with simple proximal operators, and 2) the proximal operator form serves as a general interface to any specialized algorithm that can incorporate additional `2-regularization. On a single CPU core, numerical results demonstrate that the prox-affine form results in significantly faster algorithms than existing general solvers based on conic forms. In addition, splitting problems into separable sums is attractive from the perspective of distributing solver work amongst multiple cores and machines. We apply large-scale convex programming to several problems arising from building the next-generation, information-enabled electrical grid. In these problems (as is common in many domains) large, high-dimensional datasets present opportunities for novel data-driven solutions. We present approaches based on convex models for several problems: probabilistic forecasting of electricity generation and demand, preventing failures in microgrids and source separation for whole-home energy disaggregation.
Additional file 7 of Modeling zero inflation is not necessary for spatial transcriptomics
Creators: name: Zhao, Peiyao
name: Zhu, Jiaqiang
name: Ma, Ying
name: Zhou, Xiang
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 7: Figure S1. The relationship between the zero proportion and the mean across genes are displayed for datasets not shown in Fig. 1. Figure S2. The relationship between the variance and the mean is displayed across genes for datasets not shown in Fig. 2. Figure S3. Accounting for cell type mixtures reveals shifted count model preference and substantially reduced overdispersion across datasets. Figure S4. The average AIC across genes and datasets for each of the four count models with an offset is displayed against that without an offset. Figure S5. UMAP plot shows the location clustering pattern for 15 datasets.
title: ADCO, Ordre cistercien : comptes (1499-1515) (11 H 1162), f. 00300
Creators: name: de la Côte-d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: comptes
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Ordre cistercien : comptes (1499-1515), Archives départementales de la Côte-d'Or, (11 H 1162). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Ordre cistercien : comptes (1499-1515), Archives départementales de la Côte-d'Or, (11 H 1162), f. 00300, in Projet CBMA - Corpus Burgundiae Medii Aevi \[Ressource en ligne\], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Morita theory of comodules over corings
Creators: name: Böhm, Gabriella
name: Vercruysse, Joost
Publisher: name: arXiv
Year: 2007
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16D90, 16W30

description: By a theorem due to Kato and Ohtake, any (not necessarily strict) Morita context induces an equivalence between appropriate subcategories of the module categories of the two rings in the Morita context. These are in fact categories of firm modules for non-unital subrings. We apply this result to various Morita contexts associated to a comodule $Σ$ of an $A$-coring $\cC$. This allows to extend (weak and strong) structure theorems in the literature, in particular beyond the cases when any of the coring $\cC$ or the comodule $Σ$ is finitely generated and projective as an $A$-module. That is, we obtain relations between the category of $\cC$-comodules and the category of firm modules for a firm ring $R$, which is an ideal of the endomorphism algebra $^\cC(Σ)$. For a firmly projective comodule of a coseparable coring we prove a strong structure theorem assuming only surjectivity of the canonical map.
description: LaTeX, 35 pages. v2: Minor changes including the title, examples added in Section 2
Optimization, Dynamics and Stability of Non-Linear Separation Processes
Creators: name: Fahrenkopf, Max A.
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: In this thesis we develop a non convex non-linear programming problem that determines the minimum run time of a rapid, gel-free DNA separation technique called micelle end-labeled free solution electrophoresis (ELFSE). Micelle ELFSE is typically performed in capillary electrophoresis where the capillary length, electric field strength, and micelle drag tag size are the primary tuning variables. Using optimization, we demonstrate that capillary electrophoresis can be used to separate up to 600 bases in under 50 minutes. A significant improvement in performance is then shown to be achievable by using parallel capillaries which can separate up to 600 bases in under 5 minutes. Even more improvement is shown to be possible by using alternative separation modes, such as using an EOF counter- ow which enables 600 bases to be separated in under 4.5 minutes using a single capillary, and microfluidics utilizing snapshot detection to yield 600 bases in under 3.5 minutes. Long DNA, above 5000 bases, is particularly challenging to separate quickly. Using Brownian dynamics simulations we show the viability of integrating two DNA separation techniques: end-labeled DNA electrophoresis and entropic trapping. We present simulation results that demonstrate improved performance of the integrated device over entropic trapping alone. Brownian dynamics simulations are very computationally expensive, often taking over 24 hours per data point. We present an acceleration technique called projective integration which may be useful for simulations with a large amount of integration steps. We show that, using a model built from linear regression, periodic extrapolations can be used to decrease computational time. Finally we present the stability of the multi-component distillation column. We demonstrate, through the use of thermodynamics, that the distillation column is asymptotically stable when using pressure, temperature, and level control on the reboiler and condenser.
Making Deep Heatmaps Robust to Partial Occlusions for 3D Object Pose Estimation
Creators: name: Oberweger, Markus
name: Rad, Mahdi
name: Lepetit, Vincent
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We introduce a novel method for robust and accurate 3D object pose estimation from a single color image under large occlusions. Following recent approaches, we first predict the 2D projections of 3D points related to the target object and then compute the 3D pose from these correspondences using a geometric method. Unfortunately, as the results of our experiments show, predicting these 2D projections using a regular CNN or a Convolutional Pose Machine is highly sensitive to partial occlusions, even when these methods are trained with partially occluded examples. Our solution is to predict heatmaps from multiple small patches independently and to accumulate the results to obtain accurate and robust predictions. Training subsequently becomes challenging because patches with similar appearances but different positions on the object correspond to different heatmaps. However, we provide a simple yet effective solution to deal with such ambiguities. We show that our approach outperforms existing methods on two challenging datasets: The Occluded LineMOD dataset and the YCB-Video dataset, both exhibiting cluttered scenes with highly occluded objects. Project website: https://www.tugraz.at/institute/icg/research/team-lepetit/research-projects/robust-object-pose-estimation/
Spin-orbit Scattering and the Kondo Effect
Creators: name: Meir, Yigal
name: Wingreen, Ned S.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The effects of spin-orbit scattering of conduction electrons in the Kondo regime are investigated theoretically. It is shown that due to time-reversal symmetry, spin-orbit scattering does not suppress the Kondo effect, even though it breaks spin-rotational symmetry, in full agreement with experiment. An orbital magnetic field, which breaks time-reversal symmetry, leads to an effective Zeeman splitting, which can be probed in transport measurements. It is shown that, similar to weak-localization, this effect has anomalous magnetic field and temperature dependence.
description: 10 pages, RevTex, one postscript figure available on request from meir@sbphy.physics.ucsb.edu
Additional file 8 of Modeling zero inflation is not necessary for spatial transcriptomics
Creators: name: Zhao, Peiyao
name: Zhu, Jiaqiang
name: Ma, Ying
name: Zhou, Xiang
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 8. Review history.
Sine-Gordon =/= Massive Thirring, and Related Heresies
Creators: name: Klassen, Timothy R.
name: Melzer, Ezer
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: By viewing the Sine-Gordon and massive Thirring models as perturbed conformal field theories one sees that they are different (the difference being observable, for instance, in finite-volume energy levels). The UV limit of the former (SGM) is a gaussian model, that of the latter (MTM) a so-called {\it fermionic} gaussian model, the compactification radius of the boson underlying both theories depending on the SG/MT coupling. (These two families of conformal field theories are related by a ``twist''.) Corresponding SG and MT models contain a subset of fields with identical correlation functions, but each model also has fields the other one does not, e.g. the fermion fields of MTM are not contained in SGM, and the {\it bosonic} soliton fields of SGM are not in MTM. Our results imply, in particular, that the SGM at the so-called ``free-Dirac point'' $β^2 = 4π$ is actually a theory of two interacting bosons with diagonal S-matrix $S=-1$, and that for arbitrary couplings the overall sign of the accepted SG S-matrix in the soliton sector should be reversed. More generally, we draw attention to the existence of new classes of quantum field theories, analogs of the (perturbed) fermionic gaussian models, whose partition functions are invariant only under a subgroup of the modular group. One such class comprises ``fermionic versions'' of the Virasoro minimal models.
description: 50 pages (harvmac unreduced), CLNS-92/1149, ITP-SB-92-36
Perfil de Cuidador e Impacto no Percurso Académico dos Estudantes MIM-UALG
Creators: name: Norte, Gustavo
Publisher: name: Revista da Sociedade Portuguesa de Anestesiologia
Year: 2024

description: Perfil de Cuidador e Impacto no Percurso Académico dos Estudantes MIM-UALG
description: Revista da Sociedade Portuguesa de Anestesiologia, Vol. 31 N.º 4 (2022): Suplemento 2 da Revista da Sociedade Portuguesa de Anestesiologia
Probing the Neutral Fraction of the IGM with GRBs during the Epoch of Reionization
Creators: name: McQuinn, Matthew
name: Lidz, Adam
name: Zaldarriaga, Matias
name: Hernquist, Lars
name: Dutta, Suvendra
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show that near-infrared observations of the red side of the Ly-alpha line from a single gamma ray burst (GRB) afterglow cannot be used to constrain the global neutral fraction of the intergalactic medium (IGM), x_H, at the GRB's redshift to better than ~0.3. Some GRB sight-lines will encounter more neutral hydrogen than others at fixed x_H owing to the patchiness of reionisation. GRBs during the epoch of reionization will often bear no discernible signature of a neutral IGM in their afterglow spectra. We discuss the constraints on x_H from the z = 6.3 burst, GRB050904, and quantify the probability of detecting a neutral IGM using future spectroscopic observations of high-redshift, near-infrared GRB afterglows. Assuming an observation with signal-to-noise similar to the Subaru FOCAS spectrum of GRB050904 and that the column density distribution of damped Ly-alpha absorbers is the same as measured at lower redshifts, a GRB from an epoch when x_H = 0.5 can be used to detect a partly neutral IGM at 98% confidence level 10% of the time (and, for an observation with three times the sensitivity, 30% of the time).
description: 10 pages, 8 figures, submitted to MNRAS
The Big Bang quantum cosmology: The matter-energy production epoch
Creators: name: Kuzmichev, V. E.
name: Kuzmichev, V. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The exactly solvable quantum model of the homogeneous, isotropic and closed universe in the matter-energy production epoch is considered. It is assumed that the universe is originally filled with a uniform scalar field and a perfect fluid which defines a reference frame. The stationary state spectrum and the wave functions of the quantum universe are calculated. In this model the matter-energy in the universe has a component in the form of a condensate of massive zero-momentum excitation quanta of oscillations of primordial scalar field. The mean value of the scale factor of the universe in a given state is connected with the mass of a condensate by a linear relation. The nucleation rate of the universe from the initial cosmological singularity point is calculated. It is demonstrated that the process of nucleation of the universe can have an exponential (explosive) nature. The evolution of the universe is described as transitions with non-zero probabilities between the states of the universe with different masses of a condensate.
description: 16 pages, v.2 a few misprints are corrected and small additional explanations are provided
Introducing the New Sherpa Romeo
Creators: name: Anders, Jane HS
Publisher: name: Zenodo
Year: 2019
Subjects: Publisher policies
Compliance
Plan S

description: For the past 15 years, Sherpa Romeo has for provided a vital service to the Open Access sector; providing easy-to-read interpretations of publishers' self-archiving policies. Over this time, we have seen Open Access gain widespread acceptance. As policies and requirements have evolved, the underlying database struggled to keep up with the shift in use-cases that resulted. Due to this, we have been working on a complete rewrite of our platforms and a migration of our data to the new, improved data model. Following the recent beta launch of the new Sherpa Romeo, we would like to show our work to the conference. This presentation reports on the work carried out in order to upgrade the service so that it meets not only the current needs of the open access sector, but also maintains flexibility to meet future needs. The new services includes: - Greater clarity of publisher policies - Revised inclusion criteria This works ensures that our compliance services are able to meet the needs to changes to funder requirements such as Plan S.
D3.2 – COGITO Data Model and Ontology Definition and Interoperability Design
Creators: name: Bernardos, Socorro
name: García-Castro, Raúl
name: Giannakis, Giorgos
name: Lilis, Georgios
name: Teizer, Jochen
name: Bosché, Frédéric
name: Karkanis, Vasilios
name: Falcioni, Damiano
name: Moraitis, Panagiotis
name: Varga, Ján
Publisher: name: Zenodo
Year: 2021

description: The COGITO Digital Twin platform aims to enable interoperability with existing and emerging standards and data models covering different domains. Semantic interoperability in the COGITO platform relies on ontologies that will be exploited throughout the COGITO infrastructure and will be used to semantically represent the information exchanged.

This document details the methodology and technological infrastructure used to develop the COGITO ontology network, as well as the first version of the ontologies that make up such an ontology network. The followed methodology is called LOT [1] and includes four activities: 1) ontology requirements specification, 2) ontology implementation, 3) ontology publication, and 3) ontology maintenance.

The current version of the COGITO ontology network (see Figure 7) consists of three modules corresponding to the construction itself, the construction process, and the construction resources (see Table 9). These modules have already been conceptualised, implemented, and published and will be modified and complemented with new modules as the project progresses.

Some of the ontologies reviewed in previous steps of the project (in particular, in Task 3.1) have been reused according to the results of a requirement coverage analysis, which allowed us to identify that some of the terms that appear in the requirements also appear in the ontologies to a greater or lower extent. Likewise, it has allowed us to identify potential extensions currently not covered by the analysed ontologies such as the description of the construction as a whole, quality of construction elements, relevant resources (workers, equipment, and materials) and their relationship with the construction process, and metrics on the construction process such as the quality or the cost of tasks.

The next steps will be devoted to continuing to collect more ontological requirements from the pilots and the architecture to iteratively evolve the COGITO ontology network. The COGITO ontology portal will serve as a living repository for the different ontologies and will contain the latest version of the developed ontologies and of all the related artifacts.
Remarks on BMS${}_3$ invariant field theories: correlation functions and nonunitary CFTs
Creators: name: Araujo, Thiago
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use the isomorphism between the BMS${}_3$ and the $W(2,2)$ algebras to reconsider some generic aspects of CFTs with the BMS${}_3$ algebra defined as a chiral symmetry. For unitarity theories, it is known that the extended symmetry generator acts trivially, and the resulting theory is equivalent to a CFT with a Virasoro symmetry only. For nonunitary CFTs, we define an operator depending on a nilpotent variable, and we organize the Verma module through the action of this new operator. Finally, we find the conditions imposed by the modified Ward identity.
description: 21 pages; v2: presentation improved, typos corrected, references added
The Effective String of 3D Z_2 Gauge Theory as a c=1 compactified CFT
Creators: name: Caselle, M.
name: Fiore, R.
name: Gliozzi, F.
name: Vinti, S.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We report on a high precision Montecarlo test of the three dimensional Ising gauge model at finite temperature. The string tension $σ$ is extracted from the expectation values of correlations of Polyakov lines. Agreement with the string tension extracted from Wilson loops is found only if the quantum fluctuations of the flux tube are properly taken into account. The central charge of the underlying conformal field theory is c=1.
description: DFTT 23/92
How do hydrogen bonds break in supercooled water?: Detecting pathways not going through the saddle point of two-dimensional potential of mean force
Creators: name: Kikutsuji, Takuma
name: Kim, Kang
name: Matubayasi, Nobuyuki
Publisher: name: arXiv
Year: 2018
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Supercooled water exhibits remarkably slow dynamics similar to the behavior observed for various glass-forming liquids. The local order of tetrahedral structures due to hydrogen-bonds (H-bonds) increases with decreasing temperature. Thus, it is important to clarify the temperature dependence of the H-bond breakage process. This was investigated here using molecular dynamics simulations of TIP4P supercooled water. The two-dimensional (2D) potential of mean force (PMF) is presented using combinations of intermolecular distance and angle between two water molecules. The saddle point of the 2D PMF suggests the presence of the transition state that distinguishes between H-bond and non H-bond states. However, we observed pathways not going through this saddle point particularly at supercooled states, which are due to translational, rather than rotational motions of the molecules. We quantified the characteristic time scales of rotational and translational H-bond breakages. The time scale of translational H-bond breakage shows a non-Arrhenius temperature dependence comparable to that of the H-bond lifetime. This time scale is relevant for the temperature dependence of the transmission coefficient based on the transition state theory. The translational H-bond breakage is also related to cage-jumps observed in glass-forming liquids, which mostly involve spatially correlated molecules. Our findings warrant further exploration of an appropriate free-energy surface or reaction coordinates beyond the geometrical variables of the water dimer to describe a possible saddle point related to collective jump motions.
description: 8 pages, 6 figures, to appear in Journal of Chemical Physics
SEVENTEENTH ANNUAL REPORT OF THE PROVINCIAL BOARD OF HEALTH FOR THE NINE MONTHS ENDED DECEMBER 31ST, 1913 AND PROCEEDINGS OF THE MEETING OF MEDICAL HEALTH OFFICERS OF BRITISH COLUMBIA HELD IN VANCOUVER, B.C., JUNE 17TH AND 18TH, 1914.
Creators: name: British Columbia. Legislative Assembly
Publisher: name: Victoria, BC : Government Printer
Year: 2016

Abstract
All-Optical Machine Learning Using Diffractive Deep Neural Networks
Creators: name: Lin, Xing
name: Rivenson, Yair
name: Yardimci, Nezih T.
name: Veli, Muhammed
name: Jarrahi, Mona
name: Ozcan, Aydogan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Machine Learning (cs.LG)
subject: Computational Physics (physics.comp-ph)
subject: Optics (physics.optics)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We introduce an all-optical Diffractive Deep Neural Network (D2NN) architecture that can learn to implement various functions after deep learning-based design of passive diffractive layers that work collectively. We experimentally demonstrated the success of this framework by creating 3D-printed D2NNs that learned to implement handwritten digit classification and the function of an imaging lens at terahertz spectrum. With the existing plethora of 3D-printing and other lithographic fabrication methods as well as spatial-light-modulators, this all-optical deep learning framework can perform, at the speed of light, various complex functions that computer-based neural networks can implement, and will find applications in all-optical image analysis, feature detection and object classification, also enabling new camera designs and optical components that can learn to perform unique tasks using D2NNs.
description: 20 pages, 4 figures
Associative spectra of graph algebras II. Satisfaction of bracketing identities, spectrum dichotomy
Creators: name: Lehtonen, Erkko
name: Waldhauser, Tamás
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: A necessary and sufficient condition is presented for a graph algebra to satisfy a bracketing identity. The associative spectrum of an arbitrary graph algebra is shown to be either constant or exponentially growing.
description: 20 pages
The Development of an Integrated Next Generation Data Repository for Materials Science
Creators: name: Ranganathan, Anusha
name: Matsuda, Asahiko
name: Tanifuji, Mikiko
name: Jones, Richard
name: Tanabe, Kosuke
name: Walk, Paul
Publisher: name: Zenodo
Year: 2019
Subjects: next-generation-repository
integration
metadata
discovery

description: This presentation will report on the development of a cutting-edge "Next Generation Data Repository" (NGDR), which is currently being developed by Antleaf and Cottage Labs for the National Institute of Materials Science (Japan), and which is scheduled to be launched at the end of March 2019. The NGDR has been developed to adopt several of the "behaviours" defined by COAR's Next Generation Repositories Working Group and, as such, implements technologies such as ResourceSync. We will also focus on the complex metadata requirements for a data repository in the domain of materials science, and will describe the approaches to managing and exploiting sophisticated metadata from a variety of sources including automated generation from laboratory equipment, crowd-sourced vocabularies, and standard SKOS-based controlled vocabularies. Finally, the challenge of integrating the repository with a number of other systems in the research 'pipeline' will be described.
title: ADCO, Cartulaire de Cîteaux pour les possessions de Saulon-la-Chapelle et Saulon-la-Rue, Fénay, Noiron et la rivière Cent-fonds (XVe siècle), Cart. 179 (11 H 1075), 70 folios, f. 0072
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2015
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire de Cîteaux pour les possessions de Saulon-la-Chapelle et Saulon-la-Rue, Fénay, Noiron et la rivière Cent-fonds (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 179 (11 H 1075), 70 folios, f. 0072, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Saulon-la-Chapelle et Saulon-la-Rue, Fénay, Noiron et la rivière Cent-fonds (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 179 (11 H 1075), 70 folios, f. 0072, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Optimal Investment and Pricing in Models where the Underlying Asset May Default
Creators: name: Fetsuya  Ishikawa
Publisher: name: Carnegie Mellon University
Year: 2016
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: he need for the pricing and hedging of credit events has increased since the financial crisis. For example, large banks are now mandated to compute prices of credit risk for all over-the-counter contracts. Such prices are known by the acronym CVA (Credit Valuation Adjustment), or more generally, XVA. Industry practitioners typically use risk-neutral pricing for such computations, the validity of which is questioned in incomplete markets. In our research, we consider an incomplete market where investment returns and variances are driven by a partially hedgeable factor process, modelled by a multi-dimensional diffusion. Additionally, the issuer of the stock may default, with the default intensity also driven by the factor process. Investors can freely trade the stock to hedge their positions in this market, and do so to maximize their utility. However, in the event of default, the investors lose their position in the stock. In this setting, we price defaultable claims using utility indifference pricing for an exponential investor. Due to the Markovian structure of the problem, we rely on PDE theory rather than BSDE theory to solve the utility maximization problem. This leads to explicit candidate solutions which we verify using the well-developed duality theory. As an application of our optimal investment result, we define, and compute, the dynamic utility indifference price for insurance against the defaultable stock.