cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Geochemical/hydrochemical evaluation of the geothermal potential of the Lamongan volcanic field (Eastern Java, Indonesia)
Creators: name: Deon, Fiorenza
name: Förster, Hans-Jürgen
name: Brehme, Maren
name: Wiegand, Bettina
name: Scheytt, Traugott
name: Moeck, Inga
name: Jaya, Makky S.
name: Putriatni, Dewi J.
Publisher: name: FID GEO
Year: 2015
Subjects: subject: 551
subject: Geothermal exploration
subject: Hidden magmatic systems
subject: Rock petrology

description: Magmatic settings involving active volcanism are potential locations for economic geothermal systems due to the occurrence of high temperature and steam pressures. Indonesia, located along active plate margins, hosts more than 100 volcanoes and, therefore, belongs to the regions with the greatest geothermal potential worldwide. However, tropical conditions and steep terrain reduce the spectrum of applicable exploration methods, in particular in remote areas. In a case study from the Lamongan volcanic field in East Java, we combine field-based data on the regional structural geology, elemental and isotopic composition of thermal waters, and the mineralogical and geochemical signatures of volcanic rocks in exploring hidden geothermal systems. Results suggest infiltration of groundwater at the volcanoes and faults. After infiltration, water is heated and reacts with rocks before rising to the surface. The existence of a potential heat source is petrologically and geophysically constrained to be an active shallow mafic-magma chamber, but its occurrence is not properly reflected in the composition of the collected warmed spring waters that are predominantly meteoric in origin. In conclusion, spring temperature and hydrochemistry alone may not always correctly reflect the deep geothermal potential of an area.
$η$-Ricci solitons on para-Kenmotsu manifolds
Creators: name: Blaga, Adara M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In the context of paracontact geometry, $η$-Ricci solitons are considered on manifolds satisfying certain curvature conditions: $(ξ,\cdot)_{R}\cdot S=0$, $(ξ,\cdot)_{S}\cdot R=0$, $(ξ,\cdot)_{W_2}\cdot S=0$ and $(ξ,\cdot)_{S}\cdot W_2=0$. We prove that on a para-Kenmotsu manifold $(M,φ,ξ,η,g)$, the existence of an $η$-Ricci soliton implies that $(M,g)$ is quasi-Einstein and if the Ricci curvature satisfies $(ξ,\cdot)_{R}\cdot S=0$, then $(M,g)$ is Einstein. Conversely, we give a sufficient condition for the existence of an $η$-Ricci soliton on a para-Kenmotsu manifold.
description: 16 pages
The structure of the Zechstein 3 stringer in the northern Netherlands, and its implications for salt kinematics and rheology
Creators: name: Strozyk, Frank
name: Urai, Janos
name: Li, Shiyuan
name: Schmatz, Joyce
name: Biehl, Bianca Coline
name: Reuning, Lars
name: Raith, Alexander Sascha Frank
name: Abe, Steffen
name: Van Gent, H. W.
name: De Keijzer, Martin
name: Kukla, Peter A.
Publisher: name: RWTH Aachen University
Year: 2016
Subjects: subject: 550

description: Geophysical research abstracts. - 18 EGU General Assembly 2016, EGU2016, Vienna, Austria, 17 Apr 2016 - 22 Apr 2016; Katlenburg-Lindau : European Geophysical Society, Geophysical research abstracts 18, EGU2016-13249, 1 Seite (2016).
description: Published by European Geophysical Society, Katlenburg-Lindau
DNN-based Denial of Quality of Service Attack on Software-defined Hybrid Edge-Cloud Systems
Creators: name: Nguyen, Minh
name: Gately, Jacob
name: Kar, Swati
name: Dey, Soumyabrata
name: Debroy, Saptarshi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: In order to satisfy diverse quality-of-service (QoS) requirements of complex real-time video applications, civilian and tactical use cases are employing software-defined hybrid edge-cloud systems. One of the primary QoS requirements of such applications is ultra-low end-to-end latency for video applications that necessitates rapid frame transfer between end-devices and edge servers using software-defined networking (SDN). Failing to guarantee such strict requirements leads to quality degradation of video applications and subsequently mission failure. In this paper, we show how a collaborative group of attackers can exploit SDN's control communications to launch Denial of Quality of Service (DQoS) attack that artificially increases end-to-end latency of video frames and yet evades detection. In particular, we show how Deep Neural Network (DNN) model training on all or partial network state information can help predict network packet drop rates with reasonable accuracy. We also show how such predictions can help design an attack model that can inflict just the right amount of added latency to the end-to-end video processing that is enough to cause considerable QoS degradation but not too much to raise suspicion. We use a realistic edge-cloud testbed on GENI platform for training data collection and demonstration of high model accuracy and attack success rate.
description: WAMICON 2022
Ecological and socio-economic functions across tropical land use systems after rainforest conversion
Creators: name: Drescher, Jochen
name: Rembold, Katja
name: Allen, Kara
name: Beckschäfer, Philip
name: Buchori, Damayanti
name: Clough, Yann
name: Faust, Heiko
name: Fauzi, Anas M.
name: Gunawan, Dodo
name: Hertel, Dietrich
name: Irawan, Bambang
name: Jaya, I. Nengah S.
name: Klarner, Bernhard
name: Kleinn, Christoph
name: Knohl, Alexander
name: Kotowska, Martyna M.
name: Krashevska, Valentyna
name: Krishna, Vijesh
name: Leuschner, Christoph
name: Lorenz, Wolfram
name: Meijide, Ana
name: Melati, Dian
name: Nomura, Miki
name: Pérez-Cruzado, César
name: Qaim, Matin
name: Siregar, Iskandar Z.
name: Steinebach, Stefanie
name: Tjoa, Aiyen
name: Tscharntke, Teja
name: Wick, Barbara
name: Wiegand, Kerstin
name: Kreft, Holger
name: Scheu, Stefan
Publisher: name: FID GEO
Year: 2016
Subjects: subject: 634
subject: agroforestry
subject: biodiversity and ecosystem function
subject: deforestation
subject: EFForTS
subject: oil palm
subject: jungle rubber

description: Tropical lowland rainforests are increasingly threatened by the expansion of agriculture and the extraction of natural resources. In Jambi Province, Indonesia, the interdisciplinary EFForTS project focuses on the ecological and socio-economic dimensions of rainforest conversion to jungle rubber agroforests and monoculture plantations of rubber and oil palm. Our data confirm that rainforest transformation and land use intensification lead to substantial losses in biodiversity and related ecosystem functions, such as decreased above- and below-ground carbon stocks. Owing to rapid step-wise transformation from forests to agroforests to monoculture plantations and renewal of each plantation type every few decades, the converted land use systems are continuously dynamic, thus hampering the adaptation of animal and plant communities. On the other hand, agricultural rainforest transformation systems provide increased income and access to education, especially for migrant smallholders. Jungle rubber and rubber monocultures are associated with higher financial land productivity but lower financial labour productivity compared to oil palm, which influences crop choice: smallholders that are labour-scarce would prefer oil palm while land-scarce smallholders would prefer rubber. Collecting long-term data in an interdisciplinary context enables us to provide decision-makers and stakeholders with scientific insights to facilitate the reconciliation between economic interests and ecological sustainability in tropical agricultural landscapes.
Self-Adaptive RISs Beyond Free Space: Convergence of Localization, Sensing and Communication under Rich-Scattering Conditions
Creators: name: Saigre-Tardif, Chloé
name: del Hougne, Philipp
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: Systems and Control (eess.SY)
subject: Signal Processing (eess.SP)
subject: Applied Physics (physics.app-ph)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: We discuss the need for a confluence of localization, sensing and communications if RISs are to be deployed in a self-adaptive manner in the dynamically evolving rich-scattering settings that are typical for 6G deployment scenarios such as factories. We establish that in such problems the rich-scattering wireless channels are subject to a highly nonlinear deterministic double-parametrization through both the RIS and uncontrolled moving objects. Therefore, acquiring full context-awareness through localization and sensing is a prerequisite for RIS-empowered communications. Yet, the byproducts of this daunting communications overhead can feed many appliances that require context awareness, such that overhead concerns may vanish. We illustrate the essential steps for operating a self-adaptive RIS under rich scattering based on a prototypical case study. We discover that self-adaptive RISs outperform context-ignorant RISs only below a certain noise threshold that depends, among other factors, on how strongly uncontrolled perturbers impact the wireless channel. We also discuss ensuing future research directions that will determine the conditions under which RISs may serve as technological enabler of 6G networks.
description: 7 pages, 5 figures, submitted to an IEEE Journal
Interacting heavy fermions in a disordered optical lattice
Creators: name: Jiang, Bo-Nan
name: Qian, Jun
name: Wang, Wen-Li
name: Du, Juan
name: Wang, Yu-Zhu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We have theoretically studied the effect of disorder on ultracold alkaline-earth atoms governed by the Kondo lattice model in an optical lattice via simplified double-well model and hybridization mean-field theory. Disorder-induced narrowing and even complete closure of hybridization gap have been predicted and the compressibility of the system has also been investigated for metallic and Kondo insulator phases in the presence of the disordered potential. To make connection to the experimental situation, we have numerically solved the disordered Kondo lattice model with an external harmonic trap and shown both the melting of Kondo insulator plateau and an compressibility anomaly at low-density.
Presentations for three remarkable submonoids of the dihedral inverse monoid on a finite set
Creators: name: Dimitrova, Ilinka
name: Fernandes, Vítor H.
name: Koppitz, Jörg
name: Quinteiro, Teresa M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 20M20, 20M05, 05C12, 05C25

description: In this paper we consider the submonoids $\mathcal{OPDI}_n$, $\mathcal{MDI}_n$ and $\mathcal{ODI}_n$ of the dihedral inverse monoid $\mathcal{DI}_n$ of all orientation-preserving, monotone and order-preserving transformations, respectively. Our goal is to exhibit presentations for each of these three monoids.
description: arXiv admin note: text overlap with arXiv:2205.02196
UMA PROPOSTA DE EDUCAÇÃO FINANCEIRA PARA JOVENS: DESAFIOS E REFLEXÕES
Creators: name: Telma Regina Stroparo
name: Avaetê de Lunetta e Rodrigues Guerra
name: Rucélia Patricia da Silva Marques
name: Michel da Costa
name: Renan Antônio da Silva
name: Aldeni Barbosa da Silva
Publisher: name: Zenodo
Year: 2025

description: A transição para a fase adulta é marcada por uma série de desafios financeiros. Nesse cenário, ressalta-se a relevância da educação financeira, que se mostra fundamental para promover uma relação mais equilibrada dos jovens com o dinheiro, além de contribuir para a construção de um futuro mais seguro e confortável. Este artigo tem como objetivo apresentar uma proposta de educação financeira direcionada aos jovens, enfatizando os principais obstáculos que eles encontram ao gerenciar suas finanças e as reflexões necessárias para uma administração financeira saudável e consciente. A metodologia adotada nesta pesquisa será a revisão bibliográfica, utilizando as principais plataformas acadêmicas: SciELO, Google Acadêmico, Portal de Periódicos CAPES, ResearchGate, entre outras, apoiando-se em materiais previamente publicados, como artigos, livros, teses e dissertações, que servirão como base para fundamentar as discussões sobre a temática abordada. Conclui-se que ao investir na educação financeira dessa faixa etária, tanto a sociedade quanto o meio acadêmico colaboram na formação de uma sociedade mais consciente, justa e sustentável, onde as novas gerações estarão aptas a enfrentar os desafios do mundo financeiro com segurança e autonomia.
The Cosmological Simulation Code OpenGadget3 -- Implementation of Meshless Finite Mass
Creators: name: Groth, Frederick
name: Steinwandel, Ulrich P.
name: Valentini, Milena
name: Dolag, Klaus
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Subsonic turbulence plays a major role in determining properties of the intra cluster medium (ICM). We introduce a new Meshless Finite Mass (MFM) implementation in OpenGadget3 and apply it to this specific problem. To this end, we present a set of test cases to validate our implementation of the MFM framework in our code. These include but are not limited to: the soundwave and Kepler disk as smooth situations to probe the stability, a Rayleigh-Taylor and Kelvin-Helmholtz instability as popular mixing instabilities, a blob test as more complex example including both mixing and shocks, shock tubes with various Mach numbers, a Sedov blast wave, different tests including self-gravity such as gravitational freefall, a hydrostatic sphere, the Zeldovich-pancake, and a $10^{15}M_{\odot}$ galaxy cluster as cosmological application. Advantages over SPH include increased mixing and a better convergence behavior. We demonstrate that the MFM-solver is robust, also in a cosmological context. We show evidence that the solver performs extraordinarily well when applied to decaying subsonic turbulence, a problem very difficult to handle for many methods. MFM captures the expected velocity power spectrum with high accuracy and shows a good convergence behavior. Using MFM or SPH within OpenGadget3 leads to a comparable decay in turbulent energy due to numerical dissipation. When studying the energy decay for different initial turbulent energy fractions, we find that MFM performs well down to Mach numbers $\mathcal{M}\approx 0.01$. Finally, we show how important the slope limiter and the energy-entropy switch are to control the behavior and the evolution of the fluids.
description: 30 pages, 27 figures, accepted and published in MNRAS
Multi-layer State Evolution Under Random Convolutional Design
Creators: name: Daniels, Max
name: Gerbelot, Cédric
name: Krzakala, Florent
name: Zdeborová, Lenka
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Signal recovery under generative neural network priors has emerged as a promising direction in statistical inference and computational imaging. Theoretical analysis of reconstruction algorithms under generative priors is, however, challenging. For generative priors with fully connected layers and Gaussian i.i.d. weights, this was achieved by the multi-layer approximate message (ML-AMP) algorithm via a rigorous state evolution. However, practical generative priors are typically convolutional, allowing for computational benefits and inductive biases, and so the Gaussian i.i.d. weight assumption is very limiting. In this paper, we overcome this limitation and establish the state evolution of ML-AMP for random convolutional layers. We prove in particular that random convolutional layers belong to the same universality class as Gaussian matrices. Our proof technique is of an independent interest as it establishes a mapping between convolutional matrices and spatially coupled sensing matrices used in coding theory.
description: Accepted to NeurIPS 2022
Entwicklung von Hauptträger-Nebenträger-Verbindern aus Kunstharzpressholz: Oberflächenbehandlungen zur Erhöhung der Reibung in der Scherfuge
Creators: name: Aurand, Simon
Publisher: name: Karlsruhe
Year: 2020
Subjects: Kunstharzpressholz
KPH
Reibbeiwert
Systemverbinder
HT-NT-Verbinder

description: In einem laufenden Forschungsvorhaben zur Entwicklung neuartiger Hauptträger-Nebenträger-Verbinder aus Kunstharzpressholz (KPH) wurden im ersten Teil verschiedene Arten der Oberflächenbehandlung der Verbinder untersucht. Diese umfassten Schleifen und Sandstrahlen, Beschichten mit Mineralkörnern und unterschiedlichen Bindemitteln, sowie das Fräsen mit verschiedenen Werkzeugen. Die jeweiligen Reibbeiwerte zwischen behandeltem KPH und Nadelholz wurden in über 300 Versuchen ermittelt. In weiterführenden Versuchen wurde das Verhalten der modifizierten Oberflächen in Verbindungen mit schräg eingedrehten Vollgewindeschrauben untersucht.
AC-KBO Revisited
Creators: name: Yamada, Akihisa
name: Winkler, Sarah
name: Hirokawa, Nao
name: Middeldorp, Aart
Publisher: name: arXiv
Year: 2014
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Equational theories that contain axioms expressing associativity and commutativity (AC) of certain operators are ubiquitous. Theorem proving methods in such theories rely on well-founded orders that are compatible with the AC axioms. In this paper we consider various definitions of AC-compatible Knuth-Bendix orders. The orders of Steinbach and of Korovin and Voronkov are revisited. The former is enhanced to a more powerful version, and we modify the latter to amend its lack of monotonicity on non-ground terms. We further present new complexity results. An extension reflecting the recent proposal of subterm coefficients in standard Knuth-Bendix orders is also given. The various orders are compared on problems in termination and completion.
description: 31 pages, To appear in Theory and Practice of Logic Programming (TPLP) special issue for the 12th International Symposium on Functional and Logic Programming (FLOPS 2014)
Symmetric Kondo Lattice States in Doped Strained Twisted Bilayer Graphene
Creators: name: Hu, H.
name: Rai, G.
name: Crippa, L.
name: Herzog-Arbeitman, J.
name: Călugăru, D.
name: Wehling, T.
name: Sangiovanni, G.
name: Valenti, R.
name: Tsvelik, A. M.
name: Bernevig, B. A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use the topological heavy fermion (THF) model and its Kondo Lattice (KL) formulation to study the symmetric Kondo state in twisted bilayer graphene. Via a large-N approximation, we find a symmetric Kondo (SK) state in KL mode at fillings $ν=0,\pm 1,\pm 2$. In the SK state, all symmetries are preserved and the local moments are Kondo screened by the conduction electrons. At the mean-field level of the THF model at $ν=0,\pm 1, \pm 2, \pm 3$, we also find a similar symmetric state. We study the stability of the symmetric state by comparing its energy with the ordered states and find the ordered states to have lower energy. However, moving away from integer fillings by doping holes to the light bands, we find the energy difference is reduced, which suggests the loss of ordering and a tendency towards Kondo screening. In order to include many-body effects beyond the mean-field approximation, we perform dynamical mean-field theory (DMFT) calculations on the THF model. We find the spin susceptibility follows a Curie behavior at $ν=0, \pm 1,\pm 2$ down to $\sim 2\text{K}$ where the onset of screening of the local moment becomes visible. This hints to very low Kondo temperatures at these fillings, in agreement with the outcome of our mean-field calculations. At non-integer filling $ν=\pm 0.5,\pm 0.8,\pm 1.2$ DMFT shows deviations from a $1/T$-susceptibility at much higher temperatures, suggesting a more effective screening of local moments with doping. Finally, we study the effect of a $C_{3z}$-rotational-symmetry-breaking strain via mean-field approaches and find that a symmetric phase (that only breaks $C_{3z}$ symmetry) can be stabilized at sufficiently large strain at $ν=0,\pm 1, \pm 2$. Our results suggest that a symmetric Kondo phase is strongly suppressed at integer fillings, but could be stabilized either at non-integer fillings or by applying strain.
description: 40 pages, 15 figures
Measurement of suppression of large-radius jets and its dependence on substructure in Pb+Pb collisions at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This letter presents a measurement of the nuclear modification factor of large-radius jets in $\sqrt{s_\mathrm{NN}} = 5.02$ TeV Pb+Pb collisions by the ATLAS experiment. The measurement is performed using 1.72 nb$^{-1}$ and 257 pb$^{-1}$ of Pb+Pb and $pp$ data, respectively. The large-radius jets are reconstructed with the anti-$k_{t}$ algorithm using a radius parameter of $R = 1.0$, by re-clustering anti-$k_{t}$ $R = 0.2$ jets, and are measured over the transverse momentum ($p_{\mathrm{T}}$) kinematic range of $158 < p_{\mathrm{T}} < 1000$ GeV and absolute pseudorapidity $|y|<2.0$. The large-radius jet constituents are further re-clustered using the $k_{t}$ algorithm in order to obtain the splitting parameters, $\sqrt{d_{12}}$ and $ΔR_{12}$, which characterize the transverse momentum scale and angular separation for the hardest splitting in the jet, respectively. The nuclear modification factor, $R_{\mathrm{AA}}$, obtained by comparing the Pb+Pb jet yields to those in $pp$ collisions, is measured as a function of jet transverse momentum ($p_{\mathrm{T}}$) and $\sqrt{d_{12}}$ or $ΔR_{12}$. A significant difference in the quenching of large-radius jets having single sub-jet and those with more complex substructure is observed. Systematic comparison of jet suppression in terms of $R_{\mathrm{AA}}$ for different jet definitions is also provided. Presented results support the hypothesis that jets with hard internal splittings lose more energy through quenching and provide a new perspective for understanding the role of jet structure in jet suppression.
description: 32 pages in total, author list starting on page 15, 3 figures. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HION-2019-09/
From MIMIC to Model: Building a workflow to model retrospective clinical data
Creators: name: Eickelberg, Garrett Johnson
Publisher: name: Galter Health Science Library & Learning Center
Year: 2020

description: Contains link to presentation at Biomedical Data Science Day, February 4, 2020.
description: PhD Candidate in Biomedical Informatics (Driskill Graduate Program)Twitter@garretteickelbe
Collateral Requirements of SMEs: The Evidence from Less?Developed Countries
Creators: name: Yaldiz Hanedar, E.
name: Broccardo, E.
name: Bazzana, F.
name: MAROTTA, Giuseppe
name: Marotta, G. Non � Autore
Publisher: name: Dipartimento di Economia Marco Biagi - Universit� di Modena e Reggio Emilia
Year: 2012

description: The main objective of this paper is to investigate the determinants of collateral requirements on loans that are extended to small and medium enterprises (SMEs) in less?developed countries. Our primary data source is the Business Environment and Enterprise Performance Survey (BEEPS) results from Eastern European and Central Asian countries. We observe that country?specific variables are more important than firm?specific variables for determining both the presence of collateral in loan contracts and the collateral to loan value ratios of these contracts. The strongest evidence in our paper addresses the important role that information sharing among lenders plays in the reduction of collateral requirements.
A variant of the Bombieri-Vinogradov theorem in short intervals with applications
Creators: name: Thorner, Jesse
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11N36, 11R42, 11F30

description: We generalize the classical Bombieri-Vinogradov theorem to a short interval, non-abelian setting. This leads to variants of the prime number theorem for short intervals where the primes lie in arithmetic progressions that are "twisted" by a splitting condition in a Galois extension $L/K$ of number fields. Using this result in conjunction with recent work of Maynard, we prove that rational primes in short intervals with a given splitting condition in a Galois extension $L/\mathbb{Q}$ exhibit dense clusters in short intervals. We explore several arithmetic applications related to questions of Serre regarding the nonvanishing Fourier coefficients of cuspidal modular forms, including finding dense clusters of fundamental discriminants $ d $ in short intervals for which the central values of $d$-quadratic twists of modular $L$-functions are non-vanishing.
description: 11 pages. The level of distribution is now explicit. Application to the short-interval Chebotarev density theorem included
A local expression of the Diederich--Fornaess exponent and the exponent of conformal harmonic measures
Creators: name: Adachi, Masanori
Publisher: name: arXiv
Year: 2014
Subjects: subject: Complex Variables (math.CV)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: Primary 32T27, Secondary 32V15

description: A local expression of the Diederich--Fornaess exponent of complements of Levi-flat real hypersurfaces is exhibited. This expression describes the correspondence between pseudoconvexity of their complements and positivity of their normal bundles, which was suggested in a work of Brunella, in a quantitative way. As an application, a connection between the Diederich--Fornaess exponent and the exponent of conformal harmonic measures is discussed.
description: 11 pages, final version, copyright information added
An effective theory of metrics with maximal acceleration
Creators: name: Torromé, Ricardo Gallego
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: A geometric theory for spacetimes whose world lines associated with physical particles have an upper bound for the proper acceleration is developed. After some fundamental remarks on the requirements that the classical dynamics for point particles should hold, the notion of generalized metric and a theory of maximal proper acceleration are introduced. A perturbative approach to metrics of maximal proper acceleration is discussed and we show how it provides a consistent theory where the associated Lorentzian metric corresponds to the limit when the maximal proper acceleration goes to infinity. Then several of the physical and kinematical properties of the maximal acceleration metric are investigated, including a discussion of the rudiments of the causal theory and the introduction of the notions of radar distance and celerity function. We discuss the corresponding modification of the Einstein mass-energy relation when the associated Lorentzian geometry is flat. In such context it is also proved that the physical dispersion relation is relativistic. Two possible physical scenarios where the modified mass-energy relation could be confronted against experiment are briefly discussed.
description: Important changes in section 5 and 6; Accepted for publication in Classical and Quantum Gravity
Subspace clustering in high-dimensions: Phase transitions & Statistical-to-Computational gap
Creators: name: Pesce, Luca
name: Loureiro, Bruno
name: Krzakala, Florent
name: Zdeborová, Lenka
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Machine Learning (cs.LG)
subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A simple model to study subspace clustering is the high-dimensional $k$-Gaussian mixture model where the cluster means are sparse vectors. Here we provide an exact asymptotic characterization of the statistically optimal reconstruction error in this model in the high-dimensional regime with extensive sparsity, i.e. when the fraction of non-zero components of the cluster means $ρ$, as well as the ratio $α$ between the number of samples and the dimension are fixed, while the dimension diverges. We identify the information-theoretic threshold below which obtaining a positive correlation with the true cluster means is statistically impossible. Additionally, we investigate the performance of the approximate message passing (AMP) algorithm analyzed via its state evolution, which is conjectured to be optimal among polynomial algorithm for this task. We identify in particular the existence of a statistical-to-computational gap between the algorithm that require a signal-to-noise ratio $λ_{\text{alg}} \ge k / \sqrtα $ to perform better than random, and the information theoretic threshold at $λ_{\text{it}} \approx \sqrt{-k ρ\logρ} / \sqrtα$. Finally, we discuss the case of sub-extensive sparsity $ρ$ by comparing the performance of the AMP with other sparsity-enhancing algorithms, such as sparse-PCA and diagonal thresholding.
description: NeurIPS camera-ready version
A Simple Proof of Posterior Robustness
Creators: name: Hamura, Yasuyuki
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Conditions for Bayesian posterior robustness have been examined in recent literature. However, many of the proofs seem to be long and complicated. In this paper, we first summarize some basic lemmas that have been applied implicitly or explicitly. Then, using them, we give a simple proof of posterior robustness. Our sufficient condition is new and practically relevant.
description: 13 pages
Nuno Filipe, S. João de Deus em verso livre, Ed. A.I., Braga 1991, 168 pp., 205X150, ISBN 972-571-283-8
Creators: name: Pereira, José Dias
Publisher: name: Theologica
Year: 1994

description: Theologica, v. 29 n. 2 (1994): Santuários marianos | Braga e Viana do Castelo
AdS/CFT Correspondence Beyond its Supergravity Approximation
Creators: name: Faizal, Mir
name: Ali, Ahmed Farag
name: Nassar, Ali
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We will study the AdS/CFT correspondence in an intermediate region between the strong form of this correspondence (string theory on AdS being dual to a boundary CFT), and the weak form of this correspondence (supergravity on AdS being dual to a boundary CFT). We will go beyond the supergravity approximation in the AdS by using the fact that strings have an extended structure. We will also calculate the CFT dual to such string corrections in the bulk, and demonstrate that they are consistent with the strong form of the AdS/CFT correspondence. So, even though the conformal dimensions of both the relevant and the irrelevant operators will receive string corrections, the conformal dimension of marginal operators will not receive any such corrections.
description: 10 pages, 0 figures, Accepted for publication in Int. J. Mod. Phys. A
Rank-one ECS manifolds of dilational type
Creators: name: Derdzinski, Andrzej
name: Terek, Ivo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C50

description: We study ECS manifolds, that is, pseudo-Riemannian manifolds with parallel Weyl tensor which are neither conformally flat nor locally symmetric. Every ECS manifold has rank 1 or 2, the rank being the dimension of a distinguished null parallel distribution discovered by Olszak, and a rank-one ECS manifold may be called translational or dilational, depending on whether the holonomy group of a natural flat connection in the Olszak distribution is finite or infinite. Some such manifolds are in a natural sense generic, which refers to the algebraic structure of the Weyl tensor. Known examples of compact ECS manifolds, in every dimension greater than 4, are all of rank 1 and translational, some of them generic, none of them locally homogeneous. As we show, generic compact rank-one ECS manifolds must be translational or locally homogeneous, provided that they arise as isometric quotients of a specific class of explicitly constructed "model" manifolds. This result is relevant since the clause starting with "provided that" may be dropped: according to a theorem which we prove in a forthcoming paper, the models just mentioned include the isometry types of the pseudo-Riemannian universal coverings of all generic compact rank-one ECS manifolds.
description: Text rearranged and slightly expanded, some references updated
Nicholas Senn
Creators: name: Matthew, Mary
Publisher: name: Galter Health Science Library & Learning Center
Year: 2016

description: Oil on canvas portrait of Dr. Nicholas Senn by artist Sister Mary Matthew. Photo of framed portrait, measuring 96 cm H x 83 cm W x 10 cm D, housed in Feinberg School of Medicine, Northwestern University, Chicago, IL. The plaque, measuring 10.2 cm H x 15.2 W x 2.5 cm D, reads: Nichols Senn, M.D. Class of 1868 Northwestern University Medical School. The portrait was unveiled at the dedication of the Montgomery Ward Memorial Building in June 1927 and added to the collection of the Archibald Church Library. (Source: p. 70 IN: Dedication of the Montgomery Ward Memorial Building, Northwestern University Medical School, Alexander McKinlock Memorial Campus, Chicago, c.1929, Northwestern University Medical School)
title: L'estime de soi des personnes âgées
title: un défi pour les soignants !
titleType: Subtitle
title: L'estime de soi des personnes âgées
titleType: AlternativeTitle
Creators: name: Siebenthal, Magaly De
name: Favre, Talitha
Publisher: name: Unknown
Year: 0
Subjects: subject: Personne âgée de + 65 ans
subject: Estime de soi
subject: Perte d'autonomie
subject: Qualité de vie
subject: Symptômes dépressifs
subject: Actions infirmières

description: L'évolution démographique mondiale montre une expansion des personnes âgées, appelée parfois "tsunami gris" ; plus le temps passe et plus la demande de soins aux personnes âgées augmente. Une grande partie de cette population vit à domicile, mais beaucoup de familles ne peuvent plus assumer une personne dépendante à la maison. Une recherche a été effectuée dans les bases de données CINAHL et Medline, six articles scientifiques ont été retenus grâce aux critères d'inclusion et d'exclusion. Nous observons que la majeure partie des articles touchant notre sujet sont quantitatifs contrairement à ce que l'on supposait.
Low-frequency radio observations of recurrent nova RS Ophiuchi with MeerKAT and LOFAR
Creators: name: de Ruiter, Iris
name: Nyamai, Miriam M.
name: Rowlinson, Antonia
name: Wijers, Ralph A. M. J.
name: O'Brien, Tim J.
name: Williams, David R. A.
name: Woudt, Patrick
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report low-frequency radio observations of the 2021 outburst of the recurrent nova RS Ophiuchi. These observations include the lowest frequency observations of this system to date. Detailed light curves are obtained by MeerKAT at 0.82 and 1.28 GHz and LOFAR at 54 and 154 MHz. These low-frequency detections allow us to put stringent constraints on the brightness temperature that clearly favour a non-thermal emission mechanism. The radio emission is interpreted and modelled as synchrotron emission from the shock interaction between the nova ejecta and the circumbinary medium. The light curve shows a plateauing behaviour after the first peak, which can be explained by either a non-uniform density of the circumbinary medium or a second emission component. Allowing for a second component in the light-curve modelling captures the steep decay at late times. Furthermore, extrapolating this model to 15 yr after the outburst shows that the radio emission might not fully disappear between outbursts. Further modelling of the light curves indicates a red giant mass-loss rate of $\sim 5 \cdot 10^{-8}~{\rm M_\odot~yr^{-1}}$. The spectrum cannot be modelled in detail at this stage, as there are likely at least four emission components. Radio emission from stellar wind or synchrotron jets is ruled out as the possible origin of the radio emission. Finally, we suggest a strategy for future observations that would advance our understanding of the physical properties of RS Ophiuchi.
description: Published in MNRAS
Bitangents of tropical plane quartic curves
Creators: name: Baker, Matt
name: Len, Yoav
name: Morrison, Ralph
name: Pflueger, Nathan
name: Ren, Qingchun
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 14T05

description: We study smooth tropical plane quartic curves and show that they satisfy certain properties analogous to (but also different from) smooth plane quartics in algebraic geometry. For example, we show that every such curve admits either infinitely many or exactly 7 bitangent lines. We also prove that a smooth tropical plane quartic curve cannot be hyperelliptic.
description: 13 pages, 9 figures. Minor revisions; accepted for publication in Mathematische Zeitschrift
AA. VV., Vale a pena dar a vida. Testemunhos sobre os Padres Jesuítas Sílvio Moreira e João de Deus, Missionários Mártires em Moçambique, Ed. A.O., «Testemunhas» 4, Braga 1988, 159 pp., 210X150, ISBN 972-39-0406-3
Creators: name: Pereira, José Dias
Publisher: name: Theologica
Year: 1994

description: Theologica, v. 29 n. 2 (1994): Santuários marianos | Braga e Viana do Castelo
Hamiltonian formalism for nonlinear Schrödinger equations
Creators: name: Pazarci, Ali
name: Turhan, Umut Can
name: Ghazanfari, Nader
name: Gahramanov, Ilmar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We study the Hamiltonian formalism for second order and fourth order nonlinear Schrödinger equations. In the case of second order equation, we consider cubic and logarithmic nonlinearities. Since the Lagrangians generating these nonlinear equations are degenerate, we follow the Dirac-Bergmann formalism to construct their corresponding Hamiltonians. In order to obtain consistent equations of motion, the Dirac-Bergmann formalism imposes some set of constraints which contribute to the total Hamiltonian along with their Lagrange multipliers. The order of the Lagrangian degeneracy determines the number of the primary constraints. Multipliers are determined by the time consistency of constraints. If a constraint is not a constant of motion, a secondary constraint is introduced to force the consistency. We show that for both second order nonlinear Schrödinger equations we only have primary constraints, and the form of nonlinearity does not change the constraint dynamics of the system. However, introducing a higher order dispersion changes the constraint dynamics and secondary constraints are needed to construct a consistent Hamilton equations of motion.
description: 8 pages
Multitemporal and multispectral data fusion for super-resolution of Sentinel-2 images
Creators: name: Tarasiewicz, Tomasz
name: Nalepa, Jakub
name: Farrugia, Reuben A.
name: Valentino, Gianluca
name: Chen, Mang
name: Briffa, Johann A.
name: Kawulok, Michal
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Multispectral Sentinel-2 images are a valuable source of Earth observation data, however spatial resolution of their spectral bands limited to 10 m, 20 m, and 60 m ground sampling distance remains insufficient in many cases. This problem can be addressed with super-resolution, aimed at reconstructing a high-resolution image from a low-resolution observation. For Sentinel-2, spectral information fusion allows for enhancing the 20 m and 60 m bands to the 10 m resolution. Also, there were attempts to combine multitemporal stacks of individual Sentinel-2 bands, however these two approaches have not been combined so far. In this paper, we introduce DeepSent -- a new deep network for super-resolving multitemporal series of multispectral Sentinel-2 images. It is underpinned with information fusion performed simultaneously in the spectral and temporal dimensions to generate an enlarged multispectral image. In our extensive experimental study, we demonstrate that our solution outperforms other state-of-the-art techniques that realize either multitemporal or multispectral data fusion. Furthermore, we show that the advantage of DeepSent results from how these two fusion types are combined in a single architecture, which is superior to performing such fusion in a sequential manner. Importantly, we have applied our method to super-resolve real-world Sentinel-2 images, enhancing the spatial resolution of all the spectral bands to 3.3 m nominal ground sampling distance, and we compare the outcome with very high-resolution WorldView-2 images. We will publish our implementation upon paper acceptance, and we expect it will increase the possibilities of exploiting super-resolved Sentinel-2 images in real-life applications.
description: Submitted to IEEE Transactions On Geoscience And Remote Sensing
Trackintel: An open-source Python library for human mobility analysis
Creators: name: Martin, Henry
name: Hong, Ye
name: Wiedemann, Nina
name: Bucher, Dominik
name: Raubal, Martin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Over the past decade, scientific studies have used the growing availability of large tracking datasets to enhance our understanding of human mobility behavior. However, so far data processing pipelines for the varying data collection methods are not standardized and consequently limit the reproducibility, comparability, and transferability of methods and results in quantitative human mobility analysis. This paper presents Trackintel, an open-source Python library for human mobility analysis. Trackintel is built on a standard data model for human mobility used in transport planning that is compatible with different types of tracking data. We introduce the main functionalities of the library that covers the full life-cycle of human mobility analysis, including processing steps according to the conceptual data model, read and write interfaces, as well as analysis functions (e.g., data quality assessment, travel mode prediction, and location labeling). We showcase the effectiveness of the Trackintel library through a case study with four different tracking datasets. Trackintel can serve as an essential tool to standardize mobility data analysis and increase the transparency and comparability of novel research on human mobility.
description: Added review of other related packages in related work
Multilayer hypergraph clustering using the aggregate similarity matrix
Creators: name: Alaluusua, Kalle
name: Avrachenkov, Konstantin
name: Kumar, B. R. Vinay
name: Leskelä, Lasse
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistics Theory (math.ST)
subject: Information Theory (cs.IT)
subject: Probability (math.PR)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05C65, 05C80, 62H30, 90B15, 90C22, 90C35, 94A16

description: We consider the community recovery problem on a multilayer variant of the hypergraph stochastic block model (HSBM). Each layer is associated with an independent realization of a d-uniform HSBM on N vertices. Given the similarity matrix containing the aggregated number of hyperedges incident to each pair of vertices, the goal is to obtain a partition of the N vertices into disjoint communities. In this work, we investigate a semidefinite programming (SDP) approach and obtain information-theoretic conditions on the model parameters that guarantee exact recovery both in the assortative and the disassortative cases.
description: 16 pages, 3 tables. Reason for replacement on 3 Nov 2023: incorporating the possibility of non-uniform layers. Reason for replacement on 18 May 2023: improving clarity of the presentation and clarifying the contribution/novelty of the paper
Switching of Perpendicular Magnetization by Spin-Orbit Torque
Creators: name: Zhu, Lijun
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetic materials with strong perpendicular magnetic anisotropy are of great interest for the development of nonvolatile magnetic memory and computing technologies due to their high stabilities at the nanoscale. However, electrical switching of such perpendicular magnetization in an energy-efficient, deterministic, scalable manner has remained a big challenge. This problem has recently attracted enormous efforts in the field of spintronics. Here, I review recent advances and challenges in the understanding of the electrical generation of spin currents, the switching mechanisms and the switching strategies of perpendicular magnetization, the switching current density by spin-orbit torque of transverse spins, the choice of perpendicular magnetic materials, and summarize the progress in prototype perpendicular SOT memory and logic devices toward the goal of energy-efficient, dense, fast perpendicular spin-orbit torque applications.
description: In press in Advanced Materials
Additional file 5 of Factors influencing conveyance of older adults with minor head injury by paramedics to the emergency department: a multiple methods study
Creators: name: Nicholson, Helen
name: Voss, Sarah
name: Black, Sarah
name: Taylor, Hazel
name: Williams, David
name: Benger, Jonathan
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 5. Paramedic factors influencing conveyance ofolder adults with minor head injury by paramedics.
Measurement of the $\boldsymbol{W}$ Boson Production Charge Asymmetry in $\boldsymbol{p\bar{p}\rightarrow W+X \rightarrow eν+X}$ Events at $\boldsymbol{\sqrt{s}=1.96}$ TeV
Creators: name: D0 Collaboration
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a measurement of the $W$ boson production charge asymmetry in $p\bar{p}\rightarrow W+X \rightarrow eν+X$ events at a center of mass energy of 1.96 TeV, using 9.7 fb$^{-1}$ of integrated luminosity collected with the D0 detector at the Fermilab Tevatron Collider. The neutrino longitudinal momentum is determined using a neutrino weighting method, and the asymmetry is measured as a function of the $W$ boson rapidity. The measurement extends over wider electron pseudorapidity region than previous results, and is the most precise to date, allowing for precise determination of proton parton distribution functions in global fits.
description: 7 pages, 1 figure, 2 tables