cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Using generative AI to investigate medical imagery models and datasets
Creators: name: Lang, Oran
name: Yaya-Stupp, Doron
name: Traynis, Ilana
name: Cole-Lewis, Heather
name: Bennett, Chloe R.
name: Lyles, Courtney
name: Lau, Charles
name: Irani, Michal
name: Semturs, Christopher
name: Webster, Dale R.
name: Corrado, Greg S.
name: Hassidim, Avinatan
name: Matias, Yossi
name: Liu, Yun
name: Hammel, Naama
name: Babenko, Boris
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: AI models have shown promise in many medical imaging tasks. However, our ability to explain what signals these models have learned is severely lacking. Explanations are needed in order to increase the trust in AI-based models, and could enable novel scientific discovery by uncovering signals in the data that are not yet known to experts. In this paper, we present a method for automatic visual explanations leveraging team-based expertise by generating hypotheses of what visual signals in the images are correlated with the task. We propose the following 4 steps: (i) Train a classifier to perform a given task (ii) Train a classifier guided StyleGAN-based image generator (StylEx) (iii) Automatically detect and visualize the top visual attributes that the classifier is sensitive towards (iv) Formulate hypotheses for the underlying mechanisms, to stimulate future research. Specifically, we present the discovered attributes to an interdisciplinary panel of experts so that hypotheses can account for social and structural determinants of health. We demonstrate results on eight prediction tasks across three medical imaging modalities: retinal fundus photographs, external eye photographs, and chest radiographs. We showcase examples of attributes that capture clinically known features, confounders that arise from factors beyond physiological mechanisms, and reveal a number of physiologically plausible novel attributes. Our approach has the potential to enable researchers to better understand, improve their assessment, and extract new knowledge from AI-based models. Importantly, we highlight that attributes generated by our framework can capture phenomena beyond physiology or pathophysiology, reflecting the real world nature of healthcare delivery and socio-cultural factors. Finally, we intend to release code to enable researchers to train their own StylEx models and analyze their predictive tasks.
description: 43 pages, 1 figure
Habitable Climate Scenarios for Proxima Centauri b With a Dynamic Ocean
Creators: name: Del Genio, Anthony D.
name: Way, Michael J.
name: Amundsen, David S.
name: Aleinov, Igor
name: Kelley, Maxwell
name: Kiang, Nancy Y.
name: Clune, Thomas L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The nearby exoplanet Proxima Centauri b will be a prime future target for characterization, despite questions about its retention of water. Climate models with static oceans suggest that an Earth-like Proxima b could harbor a small dayside region of surface liquid water at fairly warm temperatures despite its weak instellation. We present the first 3-dimensional climate simulations of Proxima b with a dynamic ocean. We find that an ocean-covered Proxima b could have a much broader area of surface liquid water but at much colder temperatures than previously suggested, due to ocean heat transport and depression of the freezing point by salinity. Elevated greenhouse gas concentrations do not necessarily produce more open ocean area because of possible dynamic regime transitions. For an evolutionary path leading to a highly saline present ocean, Proxima b could conceivably be an inhabited, mostly open ocean planet dominated by halophilic life. For an ocean planet in 3:2 spin-orbit resonance, a permanent tropical waterbelt exists for moderate eccentricity. Simulations of Proxima Centauri b may also be a model for the habitability of planets receiving similar instellation from slightly cooler or warmer stars, e.g., in the TRAPPIST-1, LHS 1140, GJ 273, and GJ 3293 systems.
description: Submitted to Astrobiology; 38 pages, 12 figures, 5 tables
SCEE Workshop Scientific Computing in Electrical Engineering
Creators: name: Deuflhard, Peter
name: Gajewski, Herbert
name: Hebermehl, Georg
name: Heinrich, Wolfgang
name: Kost, Arnulf
name: Langer, Ulrich
name: Weiland, Thomas
Publisher: name: Weierstrass Institute
Year: 1998
Subjects: subject: Scientific Computing
subject: Electromagnetics
subject: Electronics
subject: 65
subject: 35

description: The Workshop Scientific Computing in Electrical Engineering was held at the Weierstrass Institute for Applied Mathematics and Stochastics, Berlin from September 30 to October 02, 1998. The workshop brought together mathematicians, computer scientists, and engineers from research institutes, universities, and industry who work on modeling and numerical simulation on the field of electromagnetics and electronics. The program covered the topics Microwave Circuits, Integrated Optics, Optoelectronical Devices, Electromagnetic Compatibility, and Quasistatic Magnetics. A total of 31 abstracts appear in this report.
Crossover of the coarsening rates in demixing of binary viscous liquids
Creators: name: Otto, Felix
name: Seis, Christian
name: Slepcev, Dejan
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: We consider a model for phase separation in binary viscous liquids that allows for material transport due to cross-diffusion of unlike particles and convection by the hydrodynamic bulk flow. Typically, during the evolution, the average size of domains of the pure phases increases with time — a phenomenon called coarsening. Siggia [24] predicts that at an initial stage, coarsening proceeds mainly by diffusion, which leads to the well-known evaporation-recondensation growth law ℓ ∼ t 1/3 , when ` denotes the average domains size and t denotes time. Furthermore, he argued that at a later stage, convection by the bulk flow becomes the dominant transport mechanism, leading to a crossover in the coarsening rates to ℓ ∼ t. Siggia’s predictions have been confirmed by experiments and numerical simulations. In this work, we prove the crossover in the coarsening rates in terms of time-averaged lower bounds on the energy, which scales like an inverse length. We use a method proposed by Kohn and the first author [15], which exploits the gradient flow structure of the dynamics. Our adaption uses techniques from optimal transportation. Our main ingredient is a dissipation inequality. It measures how the optimal transportation distance changes under the effects of convective and diffusive transport.
Electro-reaction-diffusion system in heterostructures
Creators: name: Glitzky, Annegret
name: Hünlich, Rolf
Publisher: name: Weierstrass Institute
Year: 2000
Subjects: subject: Reaction-diffusion systems
subject: drift-diffusion processes
subject: energy estimates
subject: global estimates
subject: existence
subject: uniqueness
subject: asymptotic behaviour
subject: heterostructures
subject: semiconductor devices
subject: 35B40
subject: 35B45
subject: 35D05
subject: 35K45
subject: 35K57
subject: 78A35

description: The paper is devoted to the mathematical investigation of a general class of electro-reaction-diffusion systems with nonsmooth data which arises in applications to semiconductor technology. Besides of a basic problem, a reduced problem is considered which is obtained if the kinetics of the free carriers is fast. For two dimensional domains we prove a global existence and uniqueness result. In addition, asymptotic properties of solutions are studied. Basic ideas are energy estimates, Moser iteration, regularization techniques and an existence result for electro-diffusion systems with weakly nonlinear volume and boundary source terms which is proved in the paper, too. The relationship between the property that the energy functional decays exponentially in time to its equilibrium value and the existence of global positive lower bounds for the densities of the species is investigated. We illustrate relations between the model and its reduced version in general and for concrete examples. Finally, we discuss the special features of heterostructures for simplified model problems.
Using chemical data to define flow systems in Cuatro Cienegas, Coahuila, Mexico
Creators: name: Evans, Shanna B.
Publisher: name: The University of Texas at Austin
Year: 2005
Subjects: Hydrogeology
Basins
Chemical data
Flow systems
Mexico

description: The Cuatro Cienegas basin in Coahuila, Mexico was declared a National Protected Area in 1994 by the Mexican government. Its principle uniqueness is in its aquatic fauna, which are dependent on the abundant springs in this desert valley. However, the basin's hydrogeology is not very well understood. The springs in the basin have extreme variability in temperature, salinity, water chemistry, and discharge over small spatial scales. By gathering physical and chemical data in the field and using standard computer methods, the extremely complex flow systems in this critically sensitive desert wetland have been delineated. Five distinct flow systems are defined in the basin by the chemical data. These include the Churince system in the southwest, the Garabatal-Becerra-Rio Mesquites system flowing from the southwest to northeast portion of the basin, the Tio Candido-Hundidos system in the center of the eastern side of the basin, the Santa Tecla system in the southeast, and the Anteojo system in the north. The physical characteristics of the basin, including spring and canal locations, have been examined and show variable mixing within each system and complex physical flow systems. The Churince, Rio Mesquites, and Tio Candidio systems have separate source springs and terminal playa lakes. The Tio Candido and Rio Mesquites systems are related through canal and possible karst flow. Chemical processes involved in the evolution of Cuatro Cienegas waters have been evaluated from the analyses of 35 samples collected in April 2004, June 2004, and January 2005. Calcium and sulfate dominate the water chemistry. However, high alkalinities are encountered in pools located closest to the mountains, especially in the Anteojo system. The Anteojo and Santa Tecla systems have lower conductivity/TDS than other systems. The water chemistry for the basin has been integrated into a Geographic Information System (GIS) to examine the spatial variations in chemistry and temperature throughout the basin. Highly saline waters (31.4 mg/L Na to 810.7 mg/L Na) are encountered throughout the basin, but the highest salinities occur toward the end of the flow systems. Furthermore, the temperature of the water at various pozas in the basin may reflect the source of the water via regional and/or karst flow. The Cuatro Cienegas water chemistry is mainly evaporation controlled, but there are other important processes involved, including the dissolution and precipitation of various mineral phases. In order to understand the variability within each flow system, a reaction pathway and mixing geochemical model has been developed for each system using PHREEQC. These baseline data provide a framework for necessary future hydrologic studies in the basin
On Size and Shape of the Average Meson Fields in the Semibosonized Nambu & Jona-Lasinio Model
Creators: name: Wuensch, R.
name: Goeke, K.
name: Meissner, Th.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We consider a two-flavor Nambu \& Jona-Lasinio model in Hartree approximation involving scalar-isoscalar and pseudoscalar-isovector quark-quark interactions. Average meson fields are defined by minimizing the effective Euklidean action. The fermionic part of the action, which contains the full Dirac sea, is regularized within Schwinger's proper-time scheme. The meson fields are restricted to the chiral circle and to hedgehog configurations. The only parameter of the model is the constituent quark mass $M$ which simultaneously controls the regularization. We evaluate meson and quark fields self-consistently in dependence on the constituent quark mass. It is shown that the self-consistent fields do practically not depend on the constituent quark mass. This allows us to define a properly parameterized reference field which for physically relevant constituent masses can be used as a good approximation to the exactly calculated one. The reference field is chosen to have correct behaviour for small and large radii. To test the agreement between self-consistent and reference fields we calculate several observables like nucleon energy, mean square radius, axial-vector constant and delta-nucleon mass splitting in dependence on the constituent quark mass. The agreement is found to be very well. Figures available on request.
description: 12 pages (LATEX), 3 figures available on request, report FZR 93-18
Convergence to consensus results for Hegselmann-Krause type models with attractive-lacking interaction
Creators: name: Continelli, Elisa
name: Pignotti, Cristina
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this paper, we analyze a Hegselmann-Krause opinion formation model with attractive-lacking interaction. More precisely, we investigate the situation in which the individuals involved in an opinion formation process interact among themselves but can eventually suspend the exchange of information among each other at some times. Under quite general assumptions, we prove the exponential convergence to consensus for the Hegselmann-Krause model in presence of possible lack of interaction. We then extend the analysis to an analogous model in presence of time delays.
Radar interferometry measurement of land subsidence in El Paso, Texas
Creators: name: Leuro, Erick
Publisher: name: The University of Texas at Austin
Year: 2004
Subjects: Interferometry
Synthetic aperture radar
Texas

description: This work presents the application of radar interferometry to detect land subsidence associated with water pumping in El Paso, Texas and adjacent areas. Geological and hydrological information are compared with the radar information to validate the results. An error treatment of the measurements is performed using the singular value decomposition technique. Synthetic aperture radar interferometry is a proven remote sensing technique to detect ground deformation in a three-dimensional scale with millimetric precision. It has been applied successfully in earthquake monitoring, volcano deformation, glacier movement and aquifer compaction. El Paso and Ciudad Juarez are located over the Hueco Bolson aquifer, an unconsolidated alluvial aquifer that consists of gravel, sand, silt and clay. Because of increased water pumping since the early 20th century, the water table has changed and subsidence has occurred. Measurements of land subsidence are reported from the 1950s, 1970s, and 1980s. This work considers subsidence in the 1990s
Transitions and crossover phenomena in fully frustrated XY systems
Creators: name: Hasenbusch, Martin
name: Pelissetto, Andrea
name: Vicari, Ettore
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the two-dimensional fully frustrated XY (FFXY) model and two related models, a discretization of the Landau-Ginzburg-Wilson Hamiltonian for the critical modes of the FFXY model and a coupled Ising-XY model, by means of Monte Carlo simulations on square lattices L x L, L=O(10^3). We show that their phase diagram is characterized by two very close chiral and spin transitions, at T_ch > T_sp respectively, of the Ising and Kosterlitz-Thouless type. At T_ch the Ising regime sets in only after a preasymptotic regime, which appears universal to some extent. The approach is nonmonotonic for most observables, with a wide region controlled by an effective exponent nu_eff=0.8.
description: 9 pages
MLonMCU: TinyML Benchmarking with Fast Retargeting
Creators: name: van Kempen, Philipp
name: Stahl, Rafael
name: Mueller-Gritschneder, Daniel
name: Schlichtmann, Ulf
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: While there exist many ways to deploy machine learning models on microcontrollers, it is non-trivial to choose the optimal combination of frameworks and targets for a given application. Thus, automating the end-to-end benchmarking flow is of high relevance nowadays. A tool called MLonMCU is proposed in this paper and demonstrated by benchmarking the state-of-the-art TinyML frameworks TFLite for Microcontrollers and TVM effortlessly with a large number of configurations in a low amount of time.
description: CODAI 2022 Workshop - Embedded System Week (ESWeek)
Formation and organization of aeolian bedforms
Creators: name: Valentine, Daniel Shane
Publisher: name: The University of Texas at Austin
Year: 2004
Subjects: Aeolian bedforms
Dunes
Wind ripples

description: Aeolian bedforms represent some of the most intricate land forms on the planet encompassing a variety of scales from wind ripples on the order of centimeters to desert sand seas comprising thousands of square kilometers. Hypotheses focusing on the formation and organization of these bedforms have been nearly as complex and varied as the dunes themselves. Three distinct topics were chosen for the focus of this study: (1) the formation and organization of wind ripples; (2) morphology and sampling effects from measurement of dune lee side airflow; and (3) the formation of star dunes based on wind tunnel studies of small scale star ripples. Each of these topics comprises a chapter of this thesis, which will be published individually at a later date. Wind ripple formation has been a topic of discussion for nearly a century. For this study ripples were formed in a wind tunnel and recorded using time-lapse photography. Data reveal that ripples form in a pattern that closely matches the formation of computer simulated bedforms using only basic rules of sand transport, but neglecting any sort of aerodynamic control of bedform morphology. These findings support the hypothesis that aeolian bedforms are self-organizing and that no predisposed template of formation exists within the fluid flow. Aeolian dune lee side airflow comprises a complex subject of study. The airflow is the result of a complex interaction between the wind and the sand surface. Using a new technique of wind velocity data collection, a more accurate picture of the lee side airflow morphology is now available. This data set provides the most comprehensive look at this environment to date. Of particular interest are the data outlining the Internal Boundary Layer, which is closest to the sediment surface and controls sediment transport. The data collected imply that no point of dune nucleation, caused by a drop in shear velocity, exists in the interdune corridor, rather, the shear increases downwind until another dune is reached. Conclusions based on the data support the theory of self organization when applied to desert dunes. Star dunes are the largest and most complex single bedforms found on Earth. Due to their size and long development time, observations of star dune formation are scant. Using a rotating table mounted in a wind tunnel, a series of complex wind patterns were simulated. Small scale star ripples were formed and the process recorded using time-lapse photography. Based on these findings at least two distinct types of star dunes are possible in nature. Because of the relationship between the wind regime and the bedforms produced, a causal link between aerodynamic control and bedform formation is dubious. More likely, however, is the self organization theory which has proven useful in all scales of bedforms examined in this study
Macroscopic Black Holes, Microscopic Black Holes and Noncommutative Membrane
Creators: name: Li, Miao
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the stretched membrane of a black hole as consisting of a perfect fluid. We find that the pressure of this fluid is negative and the specific heat is negative too. A surprising result is that if we are to assume the fluid be composed of some quanta, then the dispersion relation of the fundamental quantum is $E=m^2/k$, with $m$ at the scale of the Planck mass. There are two possible interpretation of this dispersion relation, one is the noncommutative spacetime on the stretched membrane, another is that the fundamental quantum is microscopic black holes.
description: 10 pages, harvmac; v2: refs. added
Modeling reflux dolomitization
Creators: name: Fullmer, Shawn M.
Publisher: name: The University of Texas at Austin
Year: 2005
Subjects: subject: Dolomite
subject: Carbonate rocks
subject: Permeability
subject: Porosity
subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Texas
subject: Glen Rose Formation

description: The process of reflux dolomitization is commonly invoked to explain dolostone occurrence and distribution. The time required for this process to take place is not well understood. Volumetric flow rates are the dominant control on the time requirement. Published platform scale numerical models of reflux require unrealistically high permeability values and reaction efficiencies to explain the mapped dolomite volume. Approaching the problem at the high-frequency-cycle scale allows tighter constraints on the variables and a simpler geologic setting to investigate the permeability and reaction efficiencies required to form a dolostone unit. The high-frequency cycle used as a model in this study is located near the top of the Cretaceous age upper Glen Rose Formation in central Texas. It is an upward shallowing, Albian age cycle that consists of a subtidal mud-dominated packstone overlain by an evaporitic tidal-flat cap. The dolostone extends 1.5 meters down from the cycle top. Permeability values reflecting conditions at the onset of dolomitization were reconstructed by, 1) obtaining current porosity and permeability values from outcrop samples, 2) approximating porosity loss due to burial diagenesis, 3) interpreting pre dolomitization rock fabrics from thin sections, and 4) calculating permeability using the uncompacted porosity and rock-fabric information. The data was entered into a variable density flow model and the results suggest that the time required to form this 1.5 m dolostone unit is between 300 and 1,000 years using a harmonic mean permeability of 260 md (2.6 x 10⁻¹³ m²) and magnesium exchange efficiencies between 10-40%. These more realistic permeability and efficiency values are much lower than the 100 - 10,000 Darcy's (10⁻¹¹ - 10⁻⁹ m²) permeability and 100% reaction efficiency values used in current published reflux models
XODIMLAR ADAPTATSIYASI MUAMMOSI
Creators: name: Toxirova, Gozaloy
name: Otamirzayeva, Fotima
Publisher: name: Zenodo
Year: 2024

description: Mazkur maqolada xodimlar adaptatsiyasi muammosi, yangi ishchining yangi ish joyiga moslashib ketishi, ish boshlashi kabi savollarga javob topamiz. Hozirgi rivojlangan davrda yaxshi ish topish,qolaversa yaxshi ishchi topish muammosiga duch kelamiz.
Pion Properties in a Hot $ΠN Δ$ Gas
Creators: name: Rapp, R.
name: Wambach, J.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Based on a recent meson-exchange model for the vacuum $ππ$ interaction we compute selfconsistently the in-medium $ππ$ scattering amplitude and pion selfenergy in a hot $πNΔ$ gas. The contributions to the pion selfenergy are calculated from the $ππ$ T-matrix as well as from p-wave interaction with nucleons and thermally abundant $Δ$'s. Results are presented for two scenarios believed to be realized in the relativistic heavy ion collisions performed at the GSI-SIS and the CERN-SpS. Possible implications for the observed soft pion enhancement at both SIS and SpS are indicated.
description: 20 pages in Latex, 5 figures available on request from the authors, UIUC preprint P-93-11-096
Marginally stable resonant modes of the polytropic hydrodynamic vortex
Creators: name: Hod, Shahar
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The polytropic hydrodynamic vortex describes an effective $(2+1)$-dimensional acoustic spacetime with an inner reflecting boundary at $r=r_{\text{c}}$. This physical system, like the spinning Kerr black hole, possesses an ergoregion of radius $r_{\text{e}}$ and an inner non-pointlike curvature singularity of radius $r_{\text{s}}$. Interestingly, the fundamental ratio $r_{\text{e}}/r_{\text{s}}$ which characterizes the effective geometry is determined solely by the dimensionless polytropic index $N_{\text{p}}$ of the circulating fluid. It has recently been proved that, in the $N_{\text{p}}=0$ case, the effective acoustic spacetime is characterized by an {\it infinite} countable set of reflecting surface radii, $\{r_{\text{c}}(N_{\text{p}};n)\}^{n=\infty}_{n=1}$, that can support static (marginally-stable) sound modes. In the present paper we use {\it analytical} techniques in order to explore the physical properties of the polytropic hydrodynamic vortex in the $N_{\text{p}}>0$ regime. In particular, we prove that in this physical regime, the effective acoustic spacetime is characterized by a {\it finite} discrete set of reflecting surface radii, $\{r_{\text{c}}(N_{\text{p}},m;n)\}^{n=N_{\text{max}}}_{n=1}$, that can support the marginally-stable static sound modes (here $m$ is the azimuthal harmonic index of the acoustic perturbation field). Interestingly, it is proved analytically that the dimensionless outermost supporting radius $r^{\text{max}}_{\text{c}}/r_{\text{e}}$, which marks the onset of superradiant instabilities in the polytropic hydrodynamic vortex, increases monotonically with increasing values of the integer harmonic index $m$ and decreasing values of the dimensionless polytropic index $N_{\text{p}}$.
description: 13 pages
Deep Learning-Based Spatiotemporal Multi-Event Reconstruction for Delay Line Detectors
Creators: name: Knipfer, Marco
name: Meier, Stefan
name: Heimerl, Jonas
name: Hommelhoff, Peter
name: Gleyzer, Sergei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Machine Learning (cs.LG)
subject: Optics (physics.optics)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Accurate observation of two or more particles within a very narrow time window has always been a challenge in modern physics. It creates the possibility of correlation experiments, such as the ground-breaking Hanbury Brown-Twiss experiment, leading to new physical insights. For low-energy electrons, one possibility is to use a microchannel plate with subsequent delay lines for the readout of the incident particle hits, a setup called a Delay Line Detector. The spatial and temporal coordinates of more than one particle can be fully reconstructed outside a region called the dead radius. For interesting events, where two electrons are close in space and time, the determination of the individual positions of the electrons requires elaborate peak finding algorithms. While classical methods work well with single particle hits, they fail to identify and reconstruct events caused by multiple nearby particles. To address this challenge, we present a new spatiotemporal machine learning model to identify and reconstruct the position and time of such multi-hit particle signals. This model achieves a much better resolution for nearby particle hits compared to the classical approach, removing some of the artifacts and reducing the dead radius by half. We show that machine learning models can be effective in improving the spatiotemporal performance of delay line detectors.
Crossover in coarsening rates for the monopole approximation of the Mullins-Sekerka model with kinetic drag
Creators: name: Shibin  Dai
name: Niethammer, Barbara
name: Pego, Robert
Publisher: name: Carnegie Mellon University
Year: 2010
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: The Mullins–Sekerka sharp-interface model for phase transitions interpolates between attachment-limited and diffusion-limited kinetics if kinetic drag is included in the Gibbs–Thomson interface condition. Heuristics suggest that the typical length-scale of patterns may exhibit a crossover in coarsening rate from l(t) ˜ t1/2 at short times to l(t) ˜ t1/3at long times. We establish rigorous, universal one-sided bounds on energy decay that partially justify this understanding in the monopole approximation and in the associated Lifshitz–Slyozov–Wagner mean-field model. Numerical simulations for the Lifshitz–Slyozov–Wagner model illustrate the crossover behaviour. The proofs are based on a method for estimating coarsening rates introduced by Kohn and Otto, and make use of a gradient-flow structure that the monopole approximation inherits from the Mullins–Sekerka model by restricting particle geometry to spheres.
SHAXS OG'ISHGAN XULQIGA IJTIMOIY- PSIXOLOGIK TA`SIR
Creators: name: Suleymanova, Tuxtaxon
name: Bahromjonova, Husnida
Publisher: name: Zenodo
Year: 2024

description: Mazkur maqolada shaxsning og`ishgan xulqi turlicha ijtimoiy institutlar tomonidan boshqariladi. Jamoatchilik ta`siri  huquqiy qonunlar, tibbiy aralashuv, pedagogik ta`sir, ijtimoiy ko’mak va psixologik yordam xarakterini olishi mumkin.  Axloqiy buzilish murakkab xarakteri kuchida ularni ogohlantirish va bartaraf etish yaxshi uyushtirilgan ijtimoiy ta`sirlar tizimini talab qiladi.
Co-volume methods for degenerate parabolic problems
Creators: name: Baughman, Lisa A.
name: Walkington, Noel
Publisher: name: Carnegie Mellon University
Year: 1991
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Abstract: "A complementary volume (co-volume) technique is used to develop a physically appealing algorithm for the solution of degenerate parabolic problems, such as the Stefan problem. It is shown that, these algorithms give rise to a discrete semigroup theory that parallels the continuous problem. In particular, the discrete Stefan problem gives rise to nonlinear semigroups in both the discrete L┬╣ and H[superscript -1] spaces."
Additional file 4 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 file4 (PDF 458 KB)
The tectonics of Tranquitas : a field study of rift through passive margin development and Laramide deformation in Triassic and Jurassic strata of the Sierra Madre Oriental, NE Mexico
Creators: name: Davis, Matthew H., 1975-
Publisher: name: The University of Texas at Austin
Year: 2005
Subjects: Rifting
Passive margins
Laramide
Triassic
Jurassic
Mexico
Sierra Madre Oriental
San Pablo de Tranquitas

description: Exposed near Galeana, Nuevo Leon are sedimentary deposits and contemporaneous structures that record the rifting and opening of the Gulf of Mexico, passive-margin development, and Laramide compression in the region. A mapping, sedimentologic, and structural study utilizing thin sections, measured sections, aerial photos and kinematics has produced a detailed stratigraphic section that records the transition from terrestrial to open marine deposition and the orientation and timing of deformational events. Triassic to Early Jurassic red beds in the Huizachal Group are composed of fluvial and marine sands. The La Boca and La Joya Formations, respectively, are separated by a polymictic cobble conglomerate. The Callovian Minas Viejas represents the initial stages of marine transgression and the overlying interbedded carbonates and evaporites of the Zuloaga and Olvido Formations respond to cyclic eustatic sea-level fluxuations. The increase of biodiversity through the upper Jurassic strata reflects a change from restricted to open-marine conditions. Rift-related tectonics and gravity driven brittle extension features within the carbonates have been overprinted by Laramide orogenesis. The red beds have been folded and faulted into a broad Laramide anticlinorium with smaller intrusion cored folds having amplitudes on the order of 10's of meters. Within the evaporite lies the decollement for Laramide thin-skinned deformation, thus there is a high degree of structural complexity represented in the overlying carbonates as tight folding patterns. By integrating concepts of depositional systems with structural deformation the hypothesis, "There is an exhumed preraft block in the Zuloaga Limestone around San Pablo de Tranquitas." will be tested
How uncertainties on stellar atmospheric parameters impact exoplanet studies?
Creators: name: Blanco-Cuaresma, Sergi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Exoplanet properties depend on how well the host star is characterized. For instance, the stellar atmospheric parameters (i.e., effective temperature, surface gravity and overall metallicity) are needed to derive the stellar mass and radius by using evolutionary stellar models or empirical calibrations. I studied how the stellar uncertainties impact the determination of planetary characteristics. By using high-resolution spectra and iSpec, I evaluated how discrepancies between two different spectroscopic approaches (the equivalent method and the synthetic spectral fitting technique) can significantly affect the stellar radius estimation, hence, the exoplanet radius and its possible chemical composition.
description: To appear in the "EWASS Special Session 4 (2017): Star-planet interactions" proceedings
title: 02_1297
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/
Chronology of Cenozoic tectonic events in western Venezuela and the Dutch Antilles Islands based on integration of offshore seismic reflection data and onland geology
Creators: name: Gorney, David Luke
Publisher: name: The University of Texas at Austin
Year: 2005
Subjects: Cenozoic
Tectonics
Venezuela
Dutch Antilles
Seismic data
Onland geology

description: Newly acquired BOLIVAR seismic reflection data from offshore western Venezuela and the Dutch Antilles are combined with existing geologic and geophysical data sets to examine the complex chronology of tectonic events affecting the onshore Falcon basin and the adjacent offshore basins. This study also describes the seismic acquisition, processing, and interpretation methods applied to the BOLIVAR seismic reflection data and used in this study. Three tectonic phases are constrained using these data: 1) Paleogene back-arc opening of the 3 to 6 km thick Falcon-Bonaire basin is the initial tectonic phase that occurred along east-west striking normal fault systems that have locally been inverted by later tectonic phases. These normal faults control the oldest depositional sequences and parallel the trend of the Bonaire basin. 2) northwest-striking normal faults crosscut these older normal faults and form deep submarine rifts that contain up to 4 km of sedimentary fill, forming deep water channels between the Dutch Antilles islands. Offshore well data and the age of onshore sediments in the Falcon basin indicate that this second phase rifting occurred in the late Oligocene through the early Miocene. 3) inversion of the Falcon basin commenced during the middle Miocene; this inversion phase is reflected in the present-day pattern of east-northeast-trending fold belt that can be traced over 200 km in the Falcon basin; a second fold-thrust belt (La Vela) can be traced over a distance of 175 km parallel to the Falcon coast; restoration of imbricate thrusts seen on seismic lines perpendicular to the Falcon coast indicates a minimum of 7 km of northeast-southwest directed thin-skinned shortening
Logarithmic correction to the Brane equation in Topological Reissner-Nordström de Sitter Space
Creators: name: Setare, M R
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we study braneworld cosmology when the bulk space is a charged black hole in de Sitter space (Topological Reissner-Nordström de Sitter Space) in general dimension, then we compute leading order correction to the Friedmann equation that arise from logarithmic corrections to the entropy in the holographic-branworld cosmological framwork. Finally we consider the holographic entropy bounds in this senario, we show the entropy bounds are also modified by logarithmic term.
description: 12 pages, no figure,references added, clarifying comments added, has been accepted for the publication in Eur.Phys.J.C
Nature and source of mineralizing fluids at the Presidio mine, Shafter district, Presidio County, Texas
Creators: name: Rambaud, Fabienne Michèle
Publisher: name: The University of Texas at Austin
Year: 2005
Subjects: subject: Minerals
subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Texas
subject: Presidio County

description: The object of this research is to determine the nature and source of the mineralizing fluids that formed the Presidio Zn-Pb-Ag deposit, and to determine the relationship of the Presidio deposit to the rest of the Shafter district, including the Red Hills porphyry Cu-Mo deposit, exposed about 7 km to the west. The Presidio deposit is located in the Trans-Pecos mid-Tertiary volcanic field, near the Chinati Mountain caldera margin. Deformation of the Permian and Cretaceous strata has been attributed to the late Cretaceous to early Eocene Laramide Orogeny, with additional effects related to local caldera development. The ore-hosting Permian carbonates are highly fractured below the pre-Cretaceous unconformity, which allowed mineralizing fluids to form manto deposits. Recent studies have established that the Red Hills intrusion is of Laramide age (64 Ma). Thus, mineralization in the Shafter district is unlikely to be related to the 32 Ma Chinati Mountain caldera. A plutonic body extending from the Red Hills to the east could have been the source of mineralizing fluids that flowed eastward (and upward) creating a metal zonation from Cu-Mo to ZnPb-Ag. Extensive cores drilled between Shafter and Red Hills provide a valuable data base to attempt to link the two parts of the system. A fluid inclusion study was performed on calcite and quartz samples collected in the Presidio mine and on calcite, quartz, and sphalerite collected from deep core intercepts west of the mine. Based on eutectic behavior of fluid inclusions two possible mineralizing fluids are suggested. H₂O-NaCl-KCl and H₂O-NaCl-CaCl₂. Both could represent a magmatic hydrothermal system. Isotopic studies of calcite revealed that oxygen isotopes of formation waters are between 17 and 6‰ VSMOW. The spread of δ¹⁸O values overall is interpreted to result from a mixing of high δ¹⁸O values fluids, likely caused by high temperature exchange in the sedimentary rocks, with small amounts of meteoric water or other low δ¹⁸O fluid. Carbon isotope results suggest input of CO₂ and/or CH₄ likely from organic compounds in underlying sedimentary strata. Sulfur isotope analyses show a narrow δ³⁴S range near 0 ‰ CDT and suggest a magmatic source for the sulfur involved in sulfide mineralization. Fractionation indicated by sulfide pairs suggests a mineralization temperature of 170° to 294° C. The metal zonation, fluid inclusion, and stable isotope data suggest a magmatic source, probably from a largely buried Laramide-age magmatic system that produced a hydrothermal system that cooled laterally (Red Hills to Shafter), vertically, and over time, perhaps in response to fluid mixing
Growing manioc
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
Integration of geological and petrophysical data in reservoir characterization of Pennsylvanian Upper Morrow "C-sand" in Wilburton Field, Morton County, Kansas
Creators: name: Serrano Perez, Martha Patricia
Publisher: name: The University of Texas at Austin
Year: 2005
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Petrophysics
subject: Reservoirs
subject: Sandstone
subject: Pennsylvanian
subject: Kansas

description: The Morrow C-sand reservoir at Wilburton Field is an incised-valley-fill fluvial sandstone of Pennsylvanian age. It is compartmentalized into five flow units, each of which possesses particular geological and petrophysical characteristics. Understanding the scale, geometry, and internal complexity of this depositional system is important because these sandstones represent the main hydrocarbon reservoirs in Wilburton Field. Described core, wire-line logs, petrophysical measurements and production data were integrated for Morrow C-sand depositional model and reservoir characterization. Morrow C-sand valley was incised into the underlying marine section during a relative drop in sea level. As relative sea level rose in a series of pulses, the valley was filled with fluvial sediments consisting of thick channel sandstone facies that comprise the Wilburton Field reservoir and floodplain facies. The vertical succession is composed of coarse-grained sandstones which represent amalgamated stacked channels, and point bar sediments separated by thin overbank deposits. Following fluvial sediment deposition, a marine transgression commenced during which some of the channel sands were reworked by marine processes. The relative sea level continued to rise and an overlying section of black marine shales was deposited sealing the Morrow C-sand valley. Five flow units were defined within the Morrow C-sand reservoir based on stratigraphy and petrophysical characteristics. These flow units are genetically related to the original stratigraphy of the valley-fill. Reservoir quality is controlled by the internal heterogeneities of the depositional facies. The performance of wells in the field is determined by the number and quality of the flow units from which they produce. The presence of non-reservoir rocks within the valley-fill, such as floodplain deposits, provides permeability barriers and obstacle to fluid flow
Making kava
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
Optical-Model Description of Time-Reversal Violation
Creators: name: Hnizdo, V.
name: Gould, C. R.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A time-reversal-violating spin-correlation coefficient in the total cross section for polarized neutrons incident on a tensor rank-2 polarized target is calculated by assuming a time-reversal-noninvariant, parity-conserving ``five-fold" interaction in the neutron-nucleus optical potential. Results are presented for the system $n + {^{165}{\rm Ho}}$ for neutron incident energies covering the range 1--20 MeV. From existing experimental bounds, a strength of $2 \pm 10$ keV is deduced for the real and imaginary parts of the five-fold term, which implies an upper bound of order $10^{-4}$ on the relative $T$-odd strength when compared to the central real optical potential.
description: 11 pages (Revtex)
title: Gazette SHCC, cycle 8, Politique(s), séance du 13 mars 2014
Creators: name: Schmidt, Nicolas
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021

description: Relation: http://purl.org/poi/crdo.vjf.cnrs.fr/cocoon-6c265a36-60b7-4a0e-a65a-3660b7ca0ec1