cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exceptional Points and Other Properties of Free Parafermions
Creators: name: Henry, Robert
Publisher: name: The Australian National University
Year: 2024

description: The Baxter-Fendley free parafermion model is a non-Hermitian spin chain with a special exact solution. This solution takes the form of free parafermions and generalises the free fermion solutions found in many spin-half chains. The model is defined using clock states, which are generalisations of spins with discrete rotational Z(N) symmetry. Although not Hermitian, the model is PT-symmetric, which means that unitary time evolution may be defined. The details and history of clock models and PT-symmetry are reviewed in the background theory chapters, as well as some of the numerical methods used throughout this work. This thesis focuses on new results and variations of the free parafermion model. The most important of these results is the discovery of a series of exceptional points, where two of the quasienergies that define the free spectrum become degenerate. These points appear in the complex plane of the model's magnetic field parameter, but they explain unusual behaviour observed on the real-field line. They also exist in the transverse field Ising model with complex field, which is the limiting case of the free parafermion model. An exact analytic expression describing the location of these exceptional points is derived and their properties are investigated numerically. The free parafermion model's exact solution only exists for open boundary conditions, and the properties of periodic boundary case remain largely unknown. Preliminary new results on the periodic case are presented, particularly the presence of zero-energy states that exist independently of the magnetic field parameter. Some interesting finite size numerical data is also shown. By generalising the Pauli y operator to clock states, a new clock model dubbed the XYW model is formulated. The y operator turns out to have multiple distinct generalisations, which when used together produce a commuting structure of terms that leads to a free parafermionic spectrum by satisfying a special exchange algebra. This defines the XYW model, which has a similar but in some cases distinct free spectrum to the Baxter-Fendley model. The XYW model also has an unusual boundary property where periodic boundary conditions may be equivalent to adding a new site to the open boundary case. Finally, some minor results on the Heisenberg XX model with staggered couplings are presented. The model's phase diagram is determined by examining its Majorana edge zero modes. The central charge of the model in the gapless phase is measured using DMRG and entanglement entropy scaling. A finite size effect where the gapless phase splits into a series of bands with constant order parameter is also observed.
Decidable discriminator varieties from unary classes
Creators: name: Willard, Ross
Publisher: name: Carnegie Mellon University
Year: 1990
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Abstract: "Let K be a class of (universal) algebras of fixed type. K[superscript t] denotes the class obtained by augmenting each member of K by the ternary discriminator function (t(x,y,z) = x if x [does not equal] y, t(x,x,z) = z), while V(K[superscript t]) is the closure of K[superscript t] under the formulation of subalgebras, homomorphic images, and arbitrary Cartesian products. For example, the class of Boolean algebras is definitionally equivalent to V(K[superscript t]) where K consists of a two-element algebra whose only operations are the two constants. Any equationally defined class (that is, variety) of algebras which is equivalent to some V(K[superscript t]) is known as a discriminator variety. Building on recent work of S. Burris, R. McKenzie and M. Valeriote, we characterize these locally finite universal classes K of unary algebras of finite type for which the first-order theory of V(K[superscript t]) is decideable."
DAVLAT XARIDLARIDAGI TEXNOLOGIK YANGILIKLAR SAMARADORLIK VA SAMARADORLIK UCHUN RAQAMLI YECHIMLARDAN FOYDALANISH
Creators: name: Jumaniyazov, Dostonbek
Publisher: name: Zenodo
Year: 2024

description: Ushbu ilmiy maqola davlat xaridlari sohasidagi texnologik yangiliklarning transformatsion salohiyatini o'rganadi. Elektron xaridlar platformalari, blockchain texnologiyasi va sun'iy intellekt kabi raqamli echimlar samaradorlikni oshirishi, xarajatlarni kamaytirishi va davlat xaridlari jarayonida qaror qabul qilishni yaxshilashi mumkinligini o'rganadi. Maqolada, shuningdek, ushbu yangiliklarni qabul qilish va amalga oshirish bilan bog'liq muammolar va xatarlar, shuningdek, muvaffaqiyatli integratsiya strategiyalari muhokama qilinadi. Amaliy tadqiqotlar va empirik dalillarni tahlil qilib, ushbu maqola davlat xaridlarida raqamli echimlardan foydalanishning afzalliklari va oqibatlari to'g'risida tushuncha beradi.
title: ADCO, Cartulaire de Cîteaux pour les domaines de Saint-Jean de Losne et Losne (XVIIIe siècle), Cart. 198-01 (11 H 1055), 185 folios, f. 0125
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2019
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 domaines de Saint-Jean de Losne et Losne (XVIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 198-01 (11 H 1055), 185 folios, f. 0125, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les domaines de Saint-Jean de Losne et Losne (XVIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 198-01 (11 H 1055), 185 folios, f. 0125, 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
Additional file 2 of The chromatin reader Dido3 is a regulator of the gene network that controls B cell differentiation
Creators: name: del Burgo, Fernando Gutiérrez
name: García-López, María Ángeles
name: Pons, Tirso
name: de Luis, Enrique Vázquez
name: Martínez-A, Carlos
name: Villares, Ricardo
Publisher: name: figshare
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file2 (PDF 897 KB)
On the construction of a class of generalized Kukles systems having at most one limit cycle
Creators: name: Schneider, Klaus R.
name: Grin, Alexander
Publisher: name: Weierstrass Institute
Year: 2013
Subjects: subject: Kukles system
subject: Duclac-Cherkas function
subject: limit cycle
subject: 34C05
subject: 34C23

description: Consider the class of planar systems $$fracdxdt = y, quad fracdydt = -x + mu sum_j=0^3 h_j(x,mu) y^j$$ depending on the real parameter $mu$. We are concerned with the inverse problem: How to construct the functions $h_j$ such that the system has not more than a given number of limit cycles for $mu$ belonging to some (global) interval. Our approach to treat this problem is based on the construction of suitable Dulac-Cherkas functions $Psi(x,y,mu)$ and exploiting the fact that in a simply connected region the number of limit cycles is not greater than the number of ovals contained in the set defined by $Psi(x,y,mu)=0.$
Hillslope seepage erosion, spring sapping, and knickpoint migration : evidence of groundwater sapping Middle Trinity Aquifer, Honey Creek Basin, Comal County, Texas
Creators: name: White, Kristin Miller
Publisher: name: The University of Texas at Austin
Year: 2005
Subjects: Groundwater
Erosion
Hydrogeology
Texas
Comal County

description: Geomorphic features within Honey Creek basin are consistent with formation by spring sapping which is the erosion of soil and rock by groundwater. Geomorphic evidence includes: swallow holes (stream swallets) that pirate spring discharge into the subsurface, groundwater piping and seepage along weathered marly slopes, headward erosion at knickpoints and spring orifices, fracture controls on incised streams, and generation of alluvium from scarp collapse. Erosion pins were used to measure erosion and sediment accumulation on marly slopes. Aerial photograph interpretation, Arcview GIS, 3D Analyst, and Geoorient techniques were used to evaluate the physical hydrogeologic features (potentiometric surface, karst springs, recharge features, knickpoints, and fractures) and their relationship to surface erosion patterns. Honey Creek basin is underlain by interbedded marl and limestone units of the Cretaceous Middle Trinity aquifer. Springs and caves provide a window into subsurface processes, including flow direction along preferential flowpaths and perched water tables. Precipitation affects spring discharge and water table levels in both stratigraphically perched aquifers and deeper aquifers. Upland karst features allow recharge of surface water to focus flow into spring conduits that rapidly discharge into streams following intense precipitation. Spring conduits and upland creeks feed into intermittent tributaries, then into perennial channels of Honey Creek and the Guadalupe River. Perched aquifers focus flow toward intermittent springs, while perennial springs are supported by a deeper regional system. Transmissivity is high within rock units that contain solutionally enlarged fractures and spring conduits. Elsewhere, the transmissivity of limestone and marl is generally low so that preferred flow pathways concentrate spring discharge where hillslope erosion has intersected bedding planes, conduits, and fractures. As springs discharge into local surface water bodies, erosion occurs at the spring orifices causing headward erosion along the pathways. Dominant fracture trends within the basin are generally aligned with the northeast-trending Balcones Fault Zone and a secondary fracture distribution to the northwest. These trends strongly influence spring location and sapping
On non-asymptotic optimal stopping criteria in Monte Carlo simulations
Creators: name: Bayer, Christian
name: Hoel, Håkon
name: Von Schwerin, Erik
name: Tempone, Raúl
Publisher: name: Weierstrass Institute
Year: 2013
Subjects: subject: Monte Carlo methods
subject: optimal stopping
subject: sequential stopping rules
subject: non-asymptotic
subject: 65C05
subject: 62L12
subject: 62L15

description: We consider the setting of estimating the mean of a random variable by a sequential stopping rule Monte Carlo (MC) method. The performance of a typical second moment based sequential stopping rule MC method is shown to be unreliable in such settings both by numerical examples and through analysis. By analysis and approximations, we construct a higher moment based stopping rule which is shown in numerical examples to perform more reliably and only slightly less efficiently than the second moment based stopping rule.
Criteria for resolving the cosmological singularity in Infinite Derivative Gravity around expanding backgrounds
Creators: name: Edholm, James
name: Conroy, Aindriú
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive the conditions whereby null rays `defocus' within Infinite Derivative Gravity for perturbations around an (A)dS background, and show that it is therefore possible to avoid singularities within this framework. This is in contrast to Einstein's theory of General Relativity. We further extend this to an (A)dS-Bianchi I background metric, and also give an example of a specific perturbation where defocusing is possible given certain conditions.
description: 6 pages
title: Wild yam and yam 10
Creators: name: Ridge, Eleanor
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: Vatlongos
subject: tvk

description: Elder Saksak describes different kinds of yam and wild yam, how to grow them and how to use for them for food, raising money and in custom ceremonies.
description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
Brownian occupation measures, compactness and large deviations: Pair interaction
Creators: name: Mukherjee, Chiranjib
Publisher: name: Weierstrass Institute
Year: 2015
Subjects: subject: Compactness
subject: large deviations
subject: Gibbs measures on Brownian paths
subject: Parabolic Anderson model
subject: 60J65
subject: 60J55
subject: 60F10

description: Continuing with the study of compactness and large deviations initiated in citeMV14, we turn to the analysis of Gibbs measures defined on two independent Brownian paths in $R^d$ interacting through a mutual self-attraction. This is expressed by the Hamiltonian $intint_R^2d V(x-y) mu(d x)nu(d y)$ with two probability measures $mu$ and $nu$ representing the occupation measures of two independent Brownian motions. Due to the mixed product of two independent measures, the crucial shift-invariance requirement of citeMV14 is slightly lost. However, such a mixed product of measures inspires a compactification of the quotient space of orbits of product measures, which is structurally slightly different from the one introduced in citeMV14. The orbits of the product of independent occupation measures are embedded in such a compactfication and a strong large deviation principle for these objects enables us to prove the desired asymptotic localization properties of the joint behavior of two independent paths under the Gibbs transformation. As a second application, we study the spatially smoothened parabolic Anderson model in $R^d$ with white noise potential and provide a direct computation of the annealed Lyapunov exponents of the smoothened solutions when the smoothing parameter goes to $0$.
Superconformal operators in N=4 super-Yang-Mills theory
Creators: name: Belitsky, A. V.
name: Derkachov, S. E.
name: Korchemsky, G. P.
name: Manashov, A. N.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct, in the framework of the N=4 SYM theory, a supermultiplet of twist-two conformal operators and study their renormalization properties. The components of the supermultiplet have the same anomalous dimension and enter as building blocks into multi-particle quasipartonic operators. The latter are determined by the condition that their twist equals the number of elementary constituent fields from which they are built. A unique feature of the N=4 SYM is that all quasipartonic operators with different SU(4) quantum numbers fall into a single supermultiplet. Among them there is a subsector of the operators of maximal helicity, which has been known to be integrable in the multi-color limit in QCD, independent of the presence of supersymmetry. In the N=4 SYM theory, this symmetry is extended to the whole supermultiplet of quasipartonic operators and the one-loop dilatation operator coincides with a Hamiltonian of integrable SL(2|4) Heisenberg spin chain.
description: 45 pages, Latex, 4 figures
Modelling type IIP/IIL supernovae interacting with recent episodic mass ejections from their presupernova stars with MESA & SNEC
Creators: name: Das, Sanskriti
name: Ray, Alak
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We show how dense compact discrete shells of circumstellar gas immediately outside the red supergiants affect the optical light curves of type II-P/II-L SNe taking the example of SN 2013ej. The earlier efforts in the literature had used an artificial circumstellar medium (CSM) stitched to the surface of an evolved star which had not gone through a phase of late-stage heavy mass loss, which in essence, is the source of the CSM to begin with. In contrast we allow enhanced mass loss rate from the modeled star during the $^{16}$O and $^{28}$Si burning stages and construct the CSM from the resulting mass-loss history in a self-consistent way. Once such evolved pre-SN stars are exploded, we find that the models with early interaction between the shock and the dense CSM reproduce the light curves far better than those without that mass loss and hence having no dense, nearby CSM. The required explosion energy for the progenitors with a dense CSM is reduced by almost a factor of two compared to those without the CSM. Our model, with a more realistic CSM profile and presupernova and explosion parameters, fits observed data much better throughout the rise, plateau and radioactive tail phases compared to previous studies. This points to an intermediate class of supernovae between type II-P/II-L and type II-n SNe with the characteristics of simultaneous UV and optical peak, slow decline after peak and a longer plateau.
description: Accepted for publication in The Astrophysical Journal (Main)
title: 03_0836
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
title: Wild yam and yam 11
Creators: name: Ridge, Eleanor
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: Vatlongos
subject: tvk

description: Elder Saksak describes different kinds of yam and wild yam, how to grow them and how to use for them for food, raising money and in custom ceremonies.
description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
2D Bayesian automated tilted-ring fitting of disk galaxies in large HI galaxy surveys: 2DBAT
Creators: name: Oh, Se-Heon
name: Staveley-Smith, Lister
name: Spekkens, Kristine
name: Kamphuis, Peter
name: Koribalski, Bärbel S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a novel algorithm based on a Bayesian method for 2D tilted-ring analysis of disk galaxy velocity fields. Compared to the conventional algorithms based on a chi-squared minimisation procedure, this new Bayesian-based algorithm suffers less from local minima of the model parameters even with highly multi-modal posterior distributions. Moreover, the Bayesian analysis, implemented via Markov Chain Monte Carlo (MCMC) sampling, only requires broad ranges of posterior distributions of the parameters, which makes the fitting procedure fully automated. This feature will be essential when performing kinematic analysis on the large number of resolved galaxies expected to be detected in neutral hydrogen (HI) surveys with the Square Kilometre Array (SKA) and its pathfinders. The so-called '2D Bayesian Automated Tilted-ring fitter' (2DBAT) implements Bayesian fits of 2D tilted-ring models in order to derive rotation curves of galaxies. We explore 2DBAT performance on (a) artificial HI data cubes built based on representative rotation curves of intermediate-mass and massive spiral galaxies, and (b) Australia Telescope Compact Array (ATCA) HI data from the Local Volume HI Survey (LVHIS). We find that 2DBAT works best for well-resolved galaxies with intermediate inclinations (20 deg < i < 70 deg), complementing three-dimensional techniques better suited to modelling inclined galaxies.
description: Accepted for publication in MNRAS; 46 pages, 33 figures
The hydrologic function of small sinkholes in the Edwards Aquifer recharge zone
Creators: name: Lindley, Adrien Lewis
Publisher: name: The University of Texas at Austin
Year: 2005
Subjects: Sinkholes
Hydrology
Texas
Edwards Aquifer

description: Thin soils on Cretaceous karst bedrock typify the Edwards aquifer recharge zone in central and south Texas U.S.A. Most of the recharge occurs in major streambeds in this region, but abundant evidence of active karstic dissolution suggests that some of the recharge is occurring in the uplands. The City of San Antonio uses the karstic Edwards aquifer as its main municipal water source, and is undergoing rapid development in the uplands of the aquifer recharge zone. What is the risk to water quality of development over typical small-scale yet abundant upland karst features? This project is designed to determine more precisely what constitutes a significant recharge feature in the context of state law by directly measuring infiltration rates of typical upland karst features. The hydrologic function of the soil and bedrock system in small sinkholes, identified by their morphological characteristics, and background areas is determined by large-scale constant head infiltration tests, microtopographic and soil thickness surveys, dye tracing and subsequent excavation of features, and imaging the subsurface with GPR. Measurements made with a large-scale single ring infiltrometer compare typical upland karst features to paired control plots. The average infiltration per unit head for sinkholes is slightly higher than background in areas with similar soils (0.30 1/hr for sinkholes and 0.27 1/hr for background), though both are within the range for local soils. Results from infiltrometer experiments indicate the thin clay soils typical in the uplands dominates the infiltration process, yet recharge via these features under natural conditions is greater than background when ponding occurs due to their maintained microtopography. As the thin soils typical in the uplands of the Edwards aquifer recharge zone dominate the infiltration process in these small sinkholes, as shown by ring infiltrometer experiments, the risk of recharging poor quality water via these small features from developed areas sufficient to pose a threat to aquifer water quality is little greater than background
Impact splash chondrule formation during planetesimal recycling
Creators: name: Lichtenberg, Tim
name: Golabek, Gregor J.
name: Dullemond, Cornelis P.
name: Schönbächler, Maria
name: Gerya, Taras V.
name: Meyer, Michael R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Chondrules are the dominant bulk silicate constituent of chondritic meteorites and originate from highly energetic, local processes during the first million years after the birth of the Sun. So far, an astrophysically consistent chondrule formation scenario, explaining major chemical, isotopic and textural features, remains elusive. Here, we examine the prospect of forming chondrules from planetesimal collisions. We show that intensely melted bodies with interior magma oceans became rapidly chemically equilibrated and physically differentiated. Therefore, collisional interactions among such bodies would have resulted in chondrule-like but basaltic spherules, which are not observed in the meteoritic record. This inconsistency with the expected dynamical interactions hints at an incomplete understanding of the planetary growth regime during the protoplanetary disk phase. To resolve this conundrum, we examine how the observed chemical and isotopic features of chondrules constrain the dynamical environment of accreting chondrite parent bodies by interpreting the meteoritic record as an impact-generated proxy of planetesimals that underwent repeated collision and reaccretion cycles. Using a coupled evolution-collision model we demonstrate that the vast majority of collisional debris feeding the asteroid main belt must be derived from planetesimals which were partially molten at maximum. Therefore, the precursors of chondrite parent bodies either formed primarily small, from sub-canonical aluminum-26 reservoirs, or collisional destruction mechanisms were efficient enough to shatter planetesimals before they reached the magma ocean phase. Finally, we outline the window in parameter space for which chondrule formation from planetesimal collisions can be reconciled with the meteoritic record and how our results can be used to further constrain early solar system dynamics.
description: 20 pages, 11 figures, 2 tables; accepted for publication in Icarus; associated blog article at goo.gl/5bDqGC
XULQI OG'ISHGAN BOLALARNING OTA-ONALARI BILAN AMALIYOTCHI PSIXOLOGNING FAOLIYATI
Creators: name: Otamirzayeva, Shohida
Publisher: name: Zenodo
Year: 2024

description: Mazkur maqolada xulqi og‘ishgan bolalarning ota-onalari bilan amaliyotchi psixologning faoliyati haqida bir qator ma`lumotlar keltirib o`tilgan. Hozirgi davrda maktab ta`limini oladigon bo`lsak juda ko`plab muammoli holatlar yuzaga kelmoqda, bunga yaqqol misol qilib maktablarda maktab amaliyotchi psixologlarining doimiy ravishda ish tashkil qilmasligi deyish mumkin.
Distribution-aware Fairness Test Generation
Creators: name: Rajan, Sai Sathiesh
name: Soremekun, Ezekiel
name: Traon, Yves Le
name: Chattopadhyay, Sudipta
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Ensuring that all classes of objects are detected with equal accuracy is essential in AI systems. For instance, being unable to identify any one class of objects could have fatal consequences in autonomous driving systems. Hence, ensuring the reliability of image recognition systems is crucial. This work addresses how to validate group fairness in image recognition software. We propose a distribution-aware fairness testing approach (called DistroFair) that systematically exposes class-level fairness violations in image classifiers via a synergistic combination of out-of-distribution (OOD) testing and semantic-preserving image mutation. DistroFair automatically learns the distribution (e.g., number/orientation) of objects in a set of images. Then it systematically mutates objects in the images to become OOD using three semantic-preserving image mutations - object deletion, object insertion and object rotation. We evaluate DistroFair using two well-known datasets (CityScapes and MS-COCO) and three major, commercial image recognition software (namely, Amazon Rekognition, Google Cloud Vision and Azure Computer Vision). Results show that about 21% of images generated by DistroFair reveal class-level fairness violations using either ground truth or metamorphic oracles. DistroFair is up to 2.3x more effective than two main baselines, i.e., (a) an approach which focuses on generating images only within the distribution (ID) and (b) fairness analysis using only the original image dataset. We further observed that DistroFair is efficient, it generates 460 images per hour, on average. Finally, we evaluate the semantic validity of our approach via a user study with 81 participants, using 30 real images and 30 corresponding mutated images generated by DistroFair. We found that images generated by DistroFair are 80% as realistic as real-world images.
description: Paper accepted at JSS; 18 pages, 4 figures; LaTex; Data section added
Bi-fidelity Variational Auto-encoder for Uncertainty Quantification
Creators: name: Cheng, Nuojin
name: Malik, Osman Asif
name: De, Subhayan
name: Becker, Stephen
name: Doostan, Alireza
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Quantifying the uncertainty of quantities of interest (QoIs) from physical systems is a primary objective in model validation. However, achieving this goal entails balancing the need for computational efficiency with the requirement for numerical accuracy. To address this trade-off, we propose a novel bi-fidelity formulation of variational auto-encoders (BF-VAE) designed to estimate the uncertainty associated with a QoI from low-fidelity (LF) and high-fidelity (HF) samples of the QoI. This model allows for the approximation of the statistics of the HF QoI by leveraging information derived from its LF counterpart. Specifically, we design a bi-fidelity auto-regressive model in the latent space that is integrated within the VAE's probabilistic encoder-decoder structure. An effective algorithm is proposed to maximize the variational lower bound of the HF log-likelihood in the presence of limited HF data, resulting in the synthesis of HF realizations with a reduced computational cost. Additionally, we introduce the concept of the bi-fidelity information bottleneck (BF-IB) to provide an information-theoretic interpretation of the proposed BF-VAE model. Our numerical results demonstrate that BF-VAE leads to considerably improved accuracy, as compared to a VAE trained using only HF data, when limited HF data is available.
Impact of initial fluctuations and nuclear deformations in isobar collisions
Creators: name: Wang, Jian-fei
name: Xu, Hao-jie
name: Wang, Fuqiang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Relativistic isobar ($^{96}_{44}$Ru+$^{96}_{44}$Ru and $^{96}_{40}$Zr+$^{96}_{40}$Zr) collisions have revealed intricate differences in their nuclear size and shape, inspiring unconventional studies of nuclear structure using relativistic heavy ion collisions. In this study, we investigate the relative differences in the mean multiplicity ($R_{\langle N_{\rm ch}\rangle}$) and the second- ($R_{ε_{2}}$) and third-order eccentricity ($R_{ε_{3}}$) between isobar collisions using initial state models. It is found that initial fluctuations and nuclear deformations have negligible effects on $R_{\langle N_{\rm ch}\rangle}$ in most central collisions, while both are important for the $R_{ε_{2}}$ and $R_{ε_{3}}$, the degree of which is sensitive to the underlying nucleonic or sub-nucleonic degree of freedom. These features, compared to real data, may probe the particle production mechanism and the physics underlying nuclear structure.
description: 7 pages, 4 figures
The crab and the rat
Creators: name: Ridge, Eleanor
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: Vatlongos
subject: tvk

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
Characterizing the Cosmogenic Backgrounds in NaI(Tl) for SABRE
Creators: name: Zhong, Yi Yi
Publisher: name: The Australian National University
Year: 2024

description: The exposure of materials to high energy cosmic ray particles generates small amounts of cosmogenic radioactivity. This cosmogenic background is an important consideration for dark matter direct detection experiments. Other radiogenic backgrounds arising from trace impurities are able to be significantly reduced through careful material selection and processing, leaving cosmogenic activation as a leading background component. In NaI(Tl), this background arises from long--lived cosmogenic radioisotopes like 3H and 22Na, which contribute a background component for years after underground measurements begin. Understanding the production rate of cosmogenic isotopes requires an estimate of the crystal exposure, which is experimentally difficult. This work reports on the activation of NaI(Tl) at the Los Alamos Neutron Science Center (LANSCE) facility in November 2019. The LANSCE neutron beam has a cosmic ray-like spectrum, and was used to activate NaI(Tl) crystals with the equivalent of approximately half a million years' worth of sea-level cosmic neutron exposure. The activation rates of short-lived and long-lived isotopes have been measured using gamma ray spectroscopy of the irradiated crystal, and interpreted with the help of a simulation model which accounted for the light yield nonlinearity. The activation rates for a number of isotopes are reported for the first time. The longer-lived isotope results are relevant to dark matter experiments, and corrections have been made to convert the LANSCE spectrum to an equivalent cosmic neutron spectrum. The shorter-lived isotope results are more relevant as a source of reference data which may be used to constrain spallation models. The cosmogenic activation yields measured in this thesis have also been applied in an above-ground transport scenario study for the SABRE South NaI(Tl) crystals. Effort has been made to improve the predictions of the activation rate during the journey by accounting for the shielding overburden that offers some protection of the crystal from the ambient cosmic rays. A method for tracking the equivalent overburden using a portable muon counter that can be shipped with the SABRE South crystals is also reported.
title: ADCO, Deuxième cartulaire ou Grand cartulaire de l'abbaye de Molesme, Cart. 143 (7 H 7), 153 fol, f. 0145v
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2009
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: Deuxième cartulaire ou Grand cartulaire de l'abbaye de Molesme, Archives départementales de la Côte-d'Or, Cart. 143 (7 H 7), 153 fol, f. 0145v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Deuxième cartulaire ou Grand cartulaire de l'abbaye de Molesme, Archives départementales de la Côte-d'Or, Cart. 143 (7 H 7), 153 fol, f. 0145v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb137389344
description: Provenance: abbaye de Molesme
description: Provenance: http://www.wikidata.org/entity/Q334044
DEPLAIN: A German Parallel Corpus with Intralingual Translations into Plain Language for Sentence and Document Simplification
Creators: name: Stodden, Regina
name: Momen, Omar
name: Kallmeyer, Laura
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Text simplification is an intralingual translation task in which documents, or sentences of a complex source text are simplified for a target audience. The success of automatic text simplification systems is highly dependent on the quality of parallel data used for training and evaluation. To advance sentence simplification and document simplification in German, this paper presents DEplain, a new dataset of parallel, professionally written and manually aligned simplifications in plain German ("plain DE" or in German: "Einfache Sprache"). DEplain consists of a news domain (approx. 500 document pairs, approx. 13k sentence pairs) and a web-domain corpus (approx. 150 aligned documents, approx. 2k aligned sentence pairs). In addition, we are building a web harvester and experimenting with automatic alignment methods to facilitate the integration of non-aligned and to be published parallel documents. Using this approach, we are dynamically increasing the web domain corpus, so it is currently extended to approx. 750 document pairs and approx. 3.5k aligned sentence pairs. We show that using DEplain to train a transformer-based seq2seq text simplification model can achieve promising results. We make available the corpus, the adapted alignment methods for German, the web harvester and the trained models here: https://github.com/rstodden/DEPlain.
description: Accepted to ACL 2023
Pulsar science with the CHIME telescope
Creators: name: Ng, Cherry
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The CHIME telescope (the Canadian Hydrogen Intensity Mapping Experiment) recently built in Penticton, Canada, is currently being commissioned. Originally designed as a cosmology experiment, it was soon recognized that CHIME has the potential to simultaneously serve as an incredibly useful radio telescope for pulsar science. CHIME operates across a wide bandwidth of 400-800 MHz and will have a collecting area and sensitivity comparable to that of the 100-m class radio telescopes. CHIME has a huge field of view of ~250 square degrees. It will be capable of observing 10 pulsars simultaneously, 24-hours per day, every day, while still accomplishing its missions to study Baryon Acoustic Oscillations and Fast Radio Bursts. It will carry out daily monitoring of roughly half of all pulsars in the northern hemisphere, including all NANOGrav pulsars employed in the Pulsar Timing Array project. It will cycle through all pulsars in the northern hemisphere with a range of cadence of no more than 10 days.
description: 4 pages, 3 figures, submitted to the Proceedings of IAU Symposium No. 337, 2017
Talking to children
Creators: name: Ridge, Eleanor
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: Vatlongos
subject: tvk

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
Reaktions-Diffusionsgleichungen in Heterostrukturen mit Anwendungen in der Halbleitertechnologie. Schlussbericht
Creators: name: Glitzky, Annegret
name: Huenlich, Rolf
name: Roepke, Wilfried
Publisher: name: Weierstrass Institute
Year: 1997
Subjects: subject: Systeme von Reaktions-Diffusionsgleichungen
subject: Transport geladener Teilchen
subject: Heterostrukturen
subject: Existenz
subject: Einzigkeit
subject: Asymptotik
subject: Konvergenz von Naeherungsverfahren
subject: Simulation von Prozessen der Halbleitertechnologie
subject: Hetero-Bipolartransistoren

description: Im Vorhaben wurden Beitraege zur Modellierung und Simulation relevanter Teilprozesse bei der Herstellung von Halbleiterbauelementen der Nanoelektronik geleistet. Behandelt wurden vorrangig Fragestellungen,die beim Verbundpartner, dem Institut fueur Halbleiterphysik Frankfurt (Oder), zur Entwicklung von SiGe--Heterojunction--Bipolartransistoren von Bedeutung waren. Schwerpunkte bildeten Fragen zur Diffusion von Fremdatomen in verspannten SiGe--Schichten sowie zu Feldeffekten bei der Diffusion elektrisch geladener Teilchen im Hochkonzentrationsfall. Gegenstand der analytischen und numerischen Untersuchungen waren verschiedene Klassen von Elektro-Reaktions-Diffusionsgleichungen in Heterostrukturen, die relevante Aufgaben aus der Halbleitertechnologie auf verschiedenen Niveaus modellieren. Hier wurden neue Aussagen zur globalen Existenz, Einzigkeit und zum asymptotischen Verhalten der Loesungen erhalten.Weiterhin wurden Diskretisierungsschemata, die Konvergenz von Naeherungsverfahren sowie die Reduktion der Modellgleichungen fuer singulaer gestoerte Faelle diskutiert. In the project we made a contribution to the modelling and simulation of relevant process steps in the fabrication of modern nanoelectronic semiconductor devices. Mainly we dealt with questions arising at the Institute of Semiconductor Physics Frankfurt (Oder) -- our project partner -- during the development of SiGe--heterojunction--bipolar transistors. We focussed our attention on problems concerning the diffusion of dopant atoms in strained SiGe--layers as well as on the diffusion of electrically charged species in the case of high doping. We forced our analytical and numerical investigations to various classes of electro--reaction--diffusion equations in heterostructures which model relevant processes in semiconductor technology at different levels. We found new results concerning existence, uniqueness and asymptotic behaviour of solutions. Moreover we discussed discrete versions of these equations, we proved the convergence of some numerical schemes, and we considered reductions of the model equations in some singularly perturbed cases.
Cenozoic stratigraphic and tectonic history of the Grenada and Tobago basins as determined from marine seismic data, wells, and onland geology
Creators: name: Aitken, Trevor John
Publisher: name: The University of Texas at Austin
Year: 2005
Subjects: Cenozoic
Stratigraphy
Tectonics
Grenada basin
Tobago basin
Caribbean
Seismic data

description: This thesis presents an integrated stratigraphic and tectonic evolution of the Grenada and Tobago basins using multi-channel seismic data collected in May, 2004, (BOLIVAR cruise), along with GULFREX seismic data collected by Gulf Oil Company in 1975. These reflection data, combined with UTIG OBS refraction data also collected with the BOLIVAR study in 2004 and with a compilation of previously published, onland geologic data in the southeastern Caribbean, constrain a multi-stage, Cenozoic tectonic history for the southern Lesser Antilles arc and flanking Grenada and Tobago basins. A new tectonic model for the Grenada and Tobago basins is based on three seismic megasequences. The striking similarity in the two basins' half-graben structure, smooth basement character, deep-marine seismic facies, and similar Paleogene sediment thickness suggest that the two basins formed as a single, Paleogene forearc basin related to the now dormant Aves Ridge. This single forearc basin continued to open through flexural subsidence during the early to middle Eocene probably because of slow rollback of the subducting Atlantic slab. The Grenada and Tobago basins began to be divided during the early to middle Miocene, when the thinned crust of the forearc was inverted as a result of: 1) oblique convergence between the Caribbean plate and the passive margin of South America; and 2) intrusion of the Neogene Lesser Antilles arc. Observed transpressional shortening of the basins decreases from southwest to northeast. Total shortening in the southern Grenada basin varies from 5 km in the southern part of the study area to 1 km in the northern part of the study area. Shortening structures include inverted Paleogene normal faults, folds, and shale diapirism. The late Miocene to Recent period is characterized by divided depositional histories of the Grenada and Tobago basins. The Tobago basin is characterized by a 4-km-thick wedge of Plio-Pleistocene clastic sediments inferred to represent the distal progradation of the proto-Orinoco River. The Grenada basin becomes increasingly isolated from further continental sediment input by uplift of coastal Venezuelan ranges and the Neogene Lesser Antilles volcanic ridge
Evidence of Rapid Optical Variability In Selected Narrow-Line Seyfert 1 Galaxies
Creators: name: Miller, H. R.
name: Ferrara, E. C.
name: McFarland, J. P.
name: Wilson, J. W.
name: Daya, A. B.
name: Fried, R. E.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first results of a search for the presence of rapid optical variability in a sample of five Narrow-Line Seyfert 1 galaxies. We find clear evidence of rapid variability for IRAS 13224-3809 with variations occurring on time scales of an hour. However, the results are less conclusive for the other four sources in our sample, Markarian 766, PG 1244+026, PG 1404+226 and Arakelian 564. While there are several instances among these latter objects where there is a hint that variability may be present, IRAS 13224-3809 provides the only conclusive evidence of rapid optical variability detected to date.
description: Contributed talk presented at the Joint MPE,AIP,ESO workshop on NLS1s, Bad Honnef, Dec. 1999, to appear in New Astronomy Reviews; also available at http://wave.xray.mpe.mpg.de/conferences/nls1-workshop
Additional file 3 of The chromatin reader Dido3 is a regulator of the gene network that controls B cell differentiation
Creators: name: del Burgo, Fernando Gutiérrez
name: García-López, María Ángeles
name: Pons, Tirso
name: de Luis, Enrique Vázquez
name: Martínez-A, Carlos
name: Villares, Ricardo
Publisher: name: figshare
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file3 (PDF 160 KB)
How to make laplap and catch fish
Creators: name: Ridge, Eleanor
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: Vatlongos
subject: tvk

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
Geologic history of Painthorse Quadrangle, Culberson County, Texas
Creators: name: Sealy, George, 1927-
Publisher: name: The University of Texas at Austin
Year: 1952
Subjects: subject: Historical geology--Texas--Culberson County

description: The Painthorse quadrangle was an area of deposition during every geologic period except the Triassic, Jurassic and Tertiary. Prior to Permian time the area was situated on an unstable shelf which, from time to time, was covered by shallow epicontinental seas. The orogeny at the end of Pennsylvanian time marked the area's transition from a shelf-type depositional region to an intracratonic basin which received great thicknesses of Permian sediments. The area was exposed during the first two periods of the Mesozoic era. The Cretaceous sea moving up from the south marked the last marine transgression. Late Tertiary uplifts accompanied by faulting preceded the deposition of Quaternary alluvium