cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Short-Range Order in Fe-Rich Fe-Cr Alloys as Revealed by Mössbauer Spectroscopy
Creators: name: Dubiel, S. M.
name: Cieslak, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Distribution of Cr atoms in Fe_{100-x}Cr_x alloys with x \le 25 within the first two coordination shells, 1NN-2NN, around probe 57Fe atoms was studied by means of the Mössbauer Spectroscopy. Clear evidence was found that the distribution is characteristic of a given atomic configuration. Only the configurations with Cr atoms situated in 2NN exhibit a quiasi-random distribution, while those with Cr atoms present in 1NN shell and those with Cr atoms in both shells is evidently not random showing clastering or anticlastering features. These findings are novel and much more complete than the up-to-date knowledge according to which there is an inversion of the short-range order parameter at x = 11. The inversion in the present study was found only for the configuration with one Cr atom in 1NN. On average, Cr atoms are distributed almost randomly within the 1NN-2NN volume for x \eq ~10, and do cluster for larger x.
description: 4 pages and 4 figures
Table S2.2 - Species evaluated, conservation target and amount preserved
Creators: name: Fajardo, Javier
Publisher: name: Zenodo
Year: 2019

description: Fajardo, J. (2019) Table S2.2 - Chapter II: Effectiveness of protected areas in representing biodiversity has improved with recent expansions, but remains insufficient in the tropical Andes. In Optimizing the design of protected area networks in tropical Andean countries. PhD Thesis. Universidad Internacional Menendez Pelayo.
Dissecting a miniature universe: A multi-wavelength view of galaxy quenching in the Shapley supercluster
Creators: name: Aghanim, N.
name: Tuominen, T.
name: Bonjean, V.
name: Gouin, C.
name: Bonnaire, T.
name: Einasto, M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Multiple-cluster systems, superclusters, contain large numbers of galaxies assembled in clusters inter-connected by multi-scale filamentary networks. As such, superclusters are a smaller version of the cosmic web and can be considered as miniature universes. Superclusters also contain gas, hot in the clusters and warmer in the filaments. Thus, they are ideal laboratories to study the interplay between the galaxies and the gas. In this context, the Shapley supercluster (SSC) stands out since it hosts the highest number of galaxies in the local universe. In addition, it is detected in both X-rays and via the thermal Sunyaev-Zel'dovich (tSZ) effect, making it ideal for a multi-wavelength study. Applying for the first time a filament-finder based on graphs, T-REx, on a spectroscopic galaxy catalogue, we uncovered the 3D filamentary network in and around SSC. Simultaneously, we used a large sample of photometric galaxies with information on their star formation rates (SFR) in order to investigate the quenching of star formation in the SSC environments which we define with the gas distribution in the Planck tSZ map and the ROSAT X-ray map. We confirm filaments already observed in the distribution of galaxies of the SSC, and detect new ones. We observe the quenching of star formation as a function of the gas, and show a general trend of decreasing SFR where the tSZ and X-ray signals are the highest. Within these regions, we also observe a rapid decline of the number of star-forming galaxies, coinciding with an increasing number of transitioning and passive galaxies. Within the filaments, the fraction of passive galaxies is larger than outside filaments, irrespective of the gas pressure. Our results suggest the zone of influence of the SSC, in which galaxies are pre-processed and quenched, is well defined by the tSZ signal that combines the density and temperature of the environments.
description: 16 pages, 13 figures, submitted to A&A
On rank 2 vector bundles on Fano manifolds
Creators: name: Muñoz, Roberto
name: Occhetta, Gianluca
name: Conde, Luis Solá
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14M15 (Primary) 14E30, 14J45 (Secondary)

description: In this work we deal with vector bundles of rank two on a Fano manifold $X$ with $b_2=b_4=1$. We study the nef and pseudoeffective cones of the corresponding projectivizations and how these cones are related to the decomposability of the vector bundle. As consequences, we obtain the complete list of $\mathbb{P}^1$-bundles over $X$ that have a second $\mathbb{P}^1$-bundle structure, classify all the uniform rank two vector bundles on this class of Fano manifolds and show the stability of indecomposable Fano bundles (with one exception on $\mathbb{P}^2$).
description: Updated version with an issue corrected
Applications of Three Dimensional Extremal Length, I: Tiling of a Topological Cube
Creators: name: Hersonsky, Sa'ar
Publisher: name: arXiv
Year: 2010
Subjects: subject: Geometric Topology (math.GT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 57M50, 52C22, 53A30

description: Given a triangulation of a closed topological cube, we show that (under some technical condition) there is an essentially unique tiling of a rectangular parallelepiped by cubes, indexed by the vertices of the triangulation. Moreover, i - the combinatorics is preserved, and ii- the boundary is preserved: vertices corresponding to the cubes at the corners of the rectangular parallelepiped are at the corners of the topological cube. Also, the sizes of the cubes are obtained as a solution of a variational problem which is a discrete version of the notion of extremal length in three dimensional Euclidean space.
description: 13 pages, 3 figures. Minor changes: references added
Minkowski measurability results for self-similar tilings and fractals with monophase generators
Creators: name: Lapidus, Michel L.
name: Pearse, Erin P. J.
name: Winter, Steffen
Publisher: name: arXiv
Year: 2011
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 11M41, 28A12, 28A75, 28A80, 52A39, 52C07 (Primary) 11M36, 28A78, 28D20, 42A16, 42A75, 52A20, 52A38 (Secondary)

description: In a previous paper [arXiv:1006.3807], the authors obtained tube formulas for certain fractals under rather general conditions. Based on these formulas, we give here a characterization of Minkowski measurability of a certain class of self-similar tilings and self-similar sets. Under appropriate hypotheses, self-similar tilings with simple generators (more precisely, monophase generators) are shown to be Minkowski measurable if and only if the associated scaling zeta function is of nonlattice type. Under a natural geometric condition on the tiling, the result is transferred to the associated self-similar set (i.e., the fractal itself). Also, the latter is shown to be Minkowski measurable if and only if the associated scaling zeta function is of nonlattice type.
description: 18 pages, 1 figure
Additional file 10 of Social networks and cognitive function in older adults: findings from the HAPIEE study
Creators: name: Nie, Yifan
name: Richards, Marcus
name: Kubinova, Ruzena
name: Titarenko, Anastasiya
name: Malyutina, Sofia
name: Kozela, Magdalena
name: Pajak, Andrzej
name: Bobak, Martin
name: Ruiz, Milagros
Publisher: name: figshare
Year: 2021
Subjects: subject: Neuroscience
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 10. Prospective associations between social network characteristics and global cognitive function with Bonferroni corrected p-values.
Properties of Bulgeless Disk Galaxies. I. Atomic Gas
Creators: name: Watson, Linda C.
name: Schinnerer, Eva
name: Martini, Paul
name: Boeker, Torsten
name: Lisenfeld, Ute
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the neutral hydrogen properties of a sample of 20 bulgeless disk galaxies (Sd - Sdm Hubble types), an interesting class that can be used to constrain galaxy formation and evolution, especially the role of mergers versus internal processes. Our sample is composed of nearby (within 32 Mpc), moderately inclined galaxies that bracket the circular velocity of 120 km/s, which has been found to be associated with a transition in dust scale heights in edge-on, late-type disks. Here we present HI channel maps, line profiles, and integrated intensity maps. We also derive kinematic parameters, including the circular velocity, from rotation curve analyses and calculate the integrated HI flux and HI mass for each galaxy in the sample. Three of the 20 galaxies in our sample have kinematically distinct outer components with major axes that differ by 30 - 90 degrees from the main disk. These distinct outer components may be due to a recent interaction, which would be somewhat surprising because the disks do not contain bulges. We will use the data products and derived properties in subsequent investigations into star formation and secular evolution in bulgeless disks with circular velocities above and below 120 km/s.
description: Accepted to ApJS; 60 pages, 46 figures, 6 tables
ผลของการอบแห้งด้วยลมร้อนต่อสารหอมระเหย สารออกฤทธิ์ทางชีวภาพ และฤทธิ์การต้านอนุมูลอิสระของทุเรียนภูเขาไฟศรีสะเกษ
Creators: name: จิรนันต์ รัตสีวอ
Publisher: name: คณะเทคโนโลยีการเกษตร มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2023
Subjects: การอบแห้งแบบถาด
สารหอมระเหย
สารออกฤทธิ์ทางชีวภาพ
ฤทธิ์การต้านอนุมูลอิสระ
ทุเรียนภูเขาไฟศรีสะเกษ

description: วารสารเกษตรพระวรุณ, 20, 1, 44-53
title: Molten salt suitable components: requirements and operation
title: SALTOpower | Fast-Track School #1 | Molten Salt technologies and energy system applications
titleType: Subtitle
Creators: name: D'Auria, Marco
Publisher: name: Zenodo
Year: 2023

description: Presentation carried out within the scope of Fast-Track School #1 of the SALTOpower project, on "Molten Salt technologies and energy system applications", namely "Molten salt suitable components: requirements and operation" by researcher Marco D'Auria, ENEA - Casaccia Research Centre.
Extracting quantum-critical properties from directly evaluated enhanced perturbative continuous unitary transformations
Creators: name: Schamriß, L.
name: Walther, M. R.
name: Schmidt, K. P.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Directly evaluated enhanced perturbative continuous unitary transformations (deepCUTs) are used to calculate non-perturbatively extrapolated numerical data for the ground-state energy and the energy gap. The data coincides with the perturbative series up to the order with respect to which the deepCUT is truncated. We develop a general scheme to extract quantum-critical properties from the deepCUT data based on critical scaling and a strict correspondence between the truncation used for deepCUT and the length scale of correlations at the critical point. We apply our approach to transverse-field Ising models (TFIMs) as paradigmatic systems for quantum phase transitions of various universality classes depending on the lattice geometry and the choice of antiferromagnetic or ferromagnetic coupling. In particular, we focus on the quantum phase diagram of the bilayer antiferromagnetic TFIM on the triangular lattice with an Ising-type interlayer coupling. Without a field, the model is known to host a classically disordered ground state, and in the limit of decoupled layers it exhibits the 3d-XY 'order by disorder' transition of the corresponding single-layer model. Our starting point for the unknown parts of the phase diagram is a high-order perturbative calculation about the limit of isolated dimers where the model is in a gapped phase.
description: 31 pages
Additional file 1 of Social networks and cognitive function in older adults: findings from the HAPIEE study
Creators: name: Nie, Yifan
name: Richards, Marcus
name: Kubinova, Ruzena
name: Titarenko, Anastasiya
name: Malyutina, Sofia
name: Kozela, Magdalena
name: Pajak, Andrzej
name: Bobak, Martin
name: Ruiz, Milagros
Publisher: name: figshare
Year: 2021
Subjects: subject: Neuroscience
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1 Distribution of years of follow-up in the main analytic sample for contact frequency and participation in social activities (n=6,691).
Additional file 2 of Limosilactobacillus reuteri and caffeoylquinic acid synergistically promote adipose browning and ameliorate obesity-associated disorders
Creators: name: Liu, Yameng
name: Zhong, Xianchun
name: Lin, Suqin
name: Xu, Hualing
name: Liang, Xinyu
name: Wang, Yibin
name: Xu, Jingyi
name: Wang, Kanglong
name: Guo, Xiaozhen
name: Wang, Jiawen
name: Yu, Minjun
name: Li, Cuina
name: Xie, Cen
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Science Policy
subject: Cancer
subject: Computational Biology

description: Additional file 2: Supplemental table 1. Sequences of primers used for quantitative real-time PCR.
Convergence to Nash in the potential Linear Quadratic games and accelerated learning in games
Creators: name: Alian Porzani, Alireza
Publisher: name: University of British Columbia
Year: 2022

description: Game theory and online optimization have a close relationship with each other. In some literature, online optimization has been employed for solving game theory problems. Many accelerated algorithms are proposed for offline optimization problems. However, to the best of our knowledge, there is not enough work done to accelerate zero-order online optimization. The goal is to propose a Nesterov accelerated online algorithm with the hope that it will converge to the Nash, with a fast convergence rate in Cournot games and Quadratic games. It is desired that this online algorithm also minimize the regret of a sequence of functions for both zero-order and first-order feedback. In potential Linear Quadratic (LQ) games, we also study the convergence of the policy gradient algorithms, a class of conventional reinforcement learning methods. LQ games have applications in engineering. It has been shown that using policy gradient algorithms by agents does not guarantee convergence to the Nash equilibrium. However, in the LQR problem, which is essentially a one-player LQ game, the policy gradient converges to the optimum. In this work, we show that using policy gradient algorithms leads to convergence to Nash equilibrium in potential LQ games. Additionally, we identify the characteristics of potential games in both open-loop and closed-loop settings. We will demonstrate that the class of closed-loop potential games is generally trivial, and if we put restrictions on players' actions, we can have non-trivial potential games too.
Additional file 2 of Social networks and cognitive function in older adults: findings from the HAPIEE study
Creators: name: Nie, Yifan
name: Richards, Marcus
name: Kubinova, Ruzena
name: Titarenko, Anastasiya
name: Malyutina, Sofia
name: Kozela, Magdalena
name: Pajak, Andrzej
name: Bobak, Martin
name: Ruiz, Milagros
Publisher: name: figshare
Year: 2021
Subjects: subject: Neuroscience
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2. Comparison of cognitive functions and social network characteristics between HAPIEE cohorts.
Bases of total Witt groups and lax-similitude
Creators: name: Balmer, Paul
name: Calmès, Baptiste
Publisher: name: arXiv
Year: 2011
Subjects: subject: K-Theory and Homology (math.KT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 19G99 (Primary) 11E81, 18E30 (Secondary)

description: We explain how to work with total Witt groups, more specifically, how to circumvent the classical embarrassment of making choices for line bundles up to isomorphisms and up to squares.
description: 19 pages, 1 figure. Final version
title: Molten salts as heat transfer fluids for chemical reactors
title: SALTOpower | Fast-Track School #1 | Molten Salt technologies and energy system applications
titleType: Subtitle
Creators: name: Turchetti, Luca
Publisher: name: Zenodo
Year: 2023

description: Presentation carried out within the scope of Fast-Track School #1 of the SALTOpower project, on "Molten Salt technologies and energy system applications", namely "Molten salts as heat transfer fluids for chemical reactors" by researcher Luca Turchetti, ENEA - Casaccia Research Centre.
Linear growth of matter density perturbations in f(R,G) theories
Creators: name: De Felice, Antonio
name: Suyama, Teruaki
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We derive the equation of matter density perturbations on sub-horizon scales around a flat Friedmann-Lema\^ıtre-Robertson-Walker background for the general Lagrangian density $f(R,\GB)$ that is a function of a Ricci scalar $R$ and a Gauss-Bonnet term $\GB$. We find that the effective gravitational constant generically scales as distance squared at small distances. The effect of this diminishing of the gravitational constant might be important in the gravitational dynamics of cosmic objects such as galaxies, which can be in principle tested by observations. We also provide the general expressions for the effective anisotropic stress, which is useful to constrain modified gravity models from observations of large-scale structure and weak lensing. We also find that there is a special class of theories which evade this unusual behaviour and that the condition to belong to this special class is exactly the same as the one for not having super-luminal modes with propagation speed proportional to their wavenumber.
description: Accepted for publication in Progress of Theoretical Physics, references added and typos corrected, 13 pages
Energy-scales convergence for optimal and robust quantum transport in photosynthetic complexes
Creators: name: Mohseni, Masoud
name: Shabani, Alireza
name: Lloyd, Seth
name: Rabitz, Herschel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Underlying physical principles for the high efficiency of excitation energy transfer in light-harvesting complexes are not fully understood. Notably, the degree of robustness of these systems for transporting energy is not known considering their realistic interactions with vibrational and radiative environments within the surrounding solvent and scaffold proteins. In this work, we employ an efficient technique to estimate energy transfer efficiency of such complex excitonic systems. We observe that the dynamics of the Fenna-Matthews-Olson (FMO) complex leads to optimal and robust energy transport due to a convergence of energy scales among all important internal and external parameters. In particular, we show that the FMO energy transfer efficiency is optimum and stable with respect to the relevant parameters of environmental interactions and Frenkel-exciton Hamiltonian including reorganization energy $λ$, bath frequency cutoff $γ$, temperature $T$, bath spatial correlations, initial excitations, dissipation rate, trapping rate, disorders, and dipole moments orientations. We identify the ratio of $λT/γ\*g$ as a single key parameter governing quantum transport efficiency, where g is the average excitonic energy gap.
description: minor revisions, removing some figures, 19 pages, 19 figures
Numerical challenges for energy conservation in N-body simulations of collapsing self-interacting dark matter halos
Creators: name: Fischer, Moritz S.
name: Dolag, Klaus
name: Yu, Hai-Bo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Dark matter (DM) halos can be subject to gravothermal collapse if the DM is not collisionless, but engaged in strong self-interactions. When the scattering can efficiently transfer heat from the centre to the outskirts, the central region of the halo collapses and reaches densities much higher than those for collisionless DM. This phenomenon is potentially observable in studies of strong lensing. Current theoretical efforts are motivated by observations of surprisingly dense substructures. A comparison with observations requires accurate predictions. One method to obtain such predictions is to use N-body simulations. Collapsed halos are extreme systems that pose challenges when applying state-of-the-art codes to model self-interacting dark matter (SIDM). We investigate the root of such problems, with a focus on energy non-conservation and discuss possible strategies to avoid them. We ran N-body simulations, with and without SIDM, of an isolated DM-only halo and we adjusted the numerical parameters to check the accuracy of the simulation. We find that not only the numerical scheme for SIDM can lead to energy non-conservation, but also the modelling of gravitational interaction and the time integration are problematic. The issues we find are: (a) particles changing their time step in a non-time-reversible manner; (b) the asymmetry in the tree-based gravitational force evaluation; and (c) SIDM velocity kicks breaking the time symmetry. Tuning the parameters of the simulation allows us to conserve energy not only at early stages of the evolution, but also later on. However, the cost of the simulations becomes prohibitively large. Some of the problems that make the simulations of the gravothermal collapse phase inaccurate can be overcome by choosing appropriate numerical schemes. However, other issues still pose a challenge. Our findings motivate further works on addressing these challenges.
description: 11 pages, 4 figures
Experimental demonstration of the supersonic-subsonic bifurcation in the circular jump: A hydrodynamic white hole
Creators: name: Jannes, G.
name: Piquet, R.
name: Maissa, P.
name: Mathis, C.
name: Rousseaux, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We provide an experimental demonstration that the circular hydraulic jump represents a hydrodynamic white hole or gravitational fountain (the time-reverse of a black hole) by measuring the angle of the Mach cone created by an object in the "supersonic" inner flow region. We emphasise the general character of this gravitational analogy by showing theoretically that the white hole horizon constitutes a stationary and spatial saddle-node bifurcation within dynamical-systems theory. We also demonstrate that the inner region has a "superluminal" dispersion relation, i.e., that the group velocity of the surface waves increases with frequency, and discuss some possible consequences with respect to the robustness of Hawking radiation. Finally, we point out that our experiment shows a concrete example of a possible "transplanckian distortion" of black/white holes.
description: 5 pages, 5 figures. New "transplanckian effect" described. Several clarifications, additional figures and references. Published version
Additional file 3 of Social networks and cognitive function in older adults: findings from the HAPIEE study
Creators: name: Nie, Yifan
name: Richards, Marcus
name: Kubinova, Ruzena
name: Titarenko, Anastasiya
name: Malyutina, Sofia
name: Kozela, Magdalena
name: Pajak, Andrzej
name: Bobak, Martin
name: Ruiz, Milagros
Publisher: name: figshare
Year: 2021
Subjects: subject: Neuroscience
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 3. Additional File 3. Cross-sectional associations of social network characteristics with specific cognitive functions.
Additional file 4 of Social networks and cognitive function in older adults: findings from the HAPIEE study
Creators: name: Nie, Yifan
name: Richards, Marcus
name: Kubinova, Ruzena
name: Titarenko, Anastasiya
name: Malyutina, Sofia
name: Kozela, Magdalena
name: Pajak, Andrzej
name: Bobak, Martin
name: Ruiz, Milagros
Publisher: name: figshare
Year: 2021
Subjects: subject: Neuroscience
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 4. Prospective associations of social network characteristics with specific cognitive functions.
Electromagnetic superconductivity of vacuum induced by strong magnetic field: numerical evidence in lattice gauge theory
Creators: name: Braguta, V. V.
name: Buividovich, P. V.
name: Chernodub, M. N.
name: Kotov, A. Yu.
name: Polikarpov, M. I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using numerical simulations of quenched SU(2) gauge theory we demonstrate that an external magnetic field leads to spontaneous generation of quark condensates with quantum numbers of electrically charged rho mesons if the strength of the magnetic field exceeds the critical value eBc = 0.927(77) GeV^2 or Bc =(1.56 \pm 0.13) 10^{16} Tesla. The condensation of the charged rho mesons in strong magnetic field is a key feature of the magnetic-field-induced electromagnetic superconductivity of the vacuum.
description: 14 pages, 5 figures, 2 tables, elsarticle style; continuum limit is analyzed, best fit parameters are presented in Table 2, published version
Balanced Convex Partitions of Measures in $\mathbb{R}^d$
Creators: name: Soberón, Pablo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: We will prove the following generalization of the ham sandwich Theorem, conjectured by Imre Bárány. Given a positive integer $k$ and $d$ nice measures $μ_1, μ_2,..., μ_d$ in $\mathbb{R}^d$ such that $μ_i (\mathds{R}^d) = k$ for all $i$, there is a partition of $\mathbb{R}^d$ in $k$ interior-disjoint convex parts $C_1, C_2,..., C_k$ such that $μ_i (C_j) = 1$ for all $i,j$. If $k=2$ this gives the ham sandwich Theorem.
Absolute value preconditioning for symmetric indefinite linear systems
Creators: name: Vecharynski, Eugene
name: Knyazev, Andrew V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We introduce a novel strategy for constructing symmetric positive definite (SPD) preconditioners for linear systems with symmetric indefinite matrices. The strategy, called absolute value preconditioning, is motivated by the observation that the preconditioned minimal residual method with the inverse of the absolute value of the matrix as a preconditioner converges to the exact solution of the system in at most two steps. Neither the exact absolute value of the matrix nor its exact inverse are computationally feasible to construct in general. However, we provide a practical example of an SPD preconditioner that is based on the suggested approach. In this example we consider a model problem with a shifted discrete negative Laplacian, and suggest a geometric multigrid (MG) preconditioner, where the inverse of the matrix absolute value appears only on the coarse grid, while operations on finer grids are based on the Laplacian. Our numerical tests demonstrate practical effectiveness of the new MG preconditioner, which leads to a robust iterative scheme with minimalist memory requirements.
Additional file 5 of Social networks and cognitive function in older adults: findings from the HAPIEE study
Creators: name: Nie, Yifan
name: Richards, Marcus
name: Kubinova, Ruzena
name: Titarenko, Anastasiya
name: Malyutina, Sofia
name: Kozela, Magdalena
name: Pajak, Andrzej
name: Bobak, Martin
name: Ruiz, Milagros
Publisher: name: figshare
Year: 2021
Subjects: subject: Neuroscience
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 5. Comparison of baseline study characteristics between complete (n=6,691 and n=4,624) and incomplete (n=11,920) cases.
Additional file 6 of Social networks and cognitive function in older adults: findings from the HAPIEE study
Creators: name: Nie, Yifan
name: Richards, Marcus
name: Kubinova, Ruzena
name: Titarenko, Anastasiya
name: Malyutina, Sofia
name: Kozela, Magdalena
name: Pajak, Andrzej
name: Bobak, Martin
name: Ruiz, Milagros
Publisher: name: figshare
Year: 2021
Subjects: subject: Neuroscience
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 6. Comparison of country, age, and sex adjusted cross-sectional associations between social network characteristics and global cognition among complete (n=6,691 and n=4,624) and incomplete cases due to loss to follow-up (n=10,440 and 7,365).
ChatDiet: Empowering Personalized Nutrition-Oriented Food Recommender Chatbots through an LLM-Augmented Framework
Creators: name: Yang, Zhongqi
name: Khatibi, Elahe
name: Nagesh, Nitish
name: Abbasian, Mahyar
name: Azimi, Iman
name: Jain, Ramesh
name: Rahmani, Amir M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: The profound impact of food on health necessitates advanced nutrition-oriented food recommendation services. Conventional methods often lack the crucial elements of personalization, explainability, and interactivity. While Large Language Models (LLMs) bring interpretability and explainability, their standalone use falls short of achieving true personalization. In this paper, we introduce ChatDiet, a novel LLM-powered framework designed specifically for personalized nutrition-oriented food recommendation chatbots. ChatDiet integrates personal and population models, complemented by an orchestrator, to seamlessly retrieve and process pertinent information. The personal model leverages causal discovery and inference techniques to assess personalized nutritional effects for a specific user, whereas the population model provides generalized information on food nutritional content. The orchestrator retrieves, synergizes and delivers the output of both models to the LLM, providing tailored food recommendations designed to support targeted health outcomes. The result is a dynamic delivery of personalized and explainable food recommendations, tailored to individual user preferences. Our evaluation of ChatDiet includes a compelling case study, where we establish a causal personal model to estimate individual nutrition effects. Our assessments, including a food recommendation test showcasing a 92\% effectiveness rate, coupled with illustrative dialogue examples, underscore ChatDiet's strengths in explainability, personalization, and interactivity.
description: Published on Smart Health
Nekovar duality over p-adic Lie extensions of global fields
Creators: name: Lim, Meng Fai
name: Sharifi, Romyar T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11R23, 11R34, 11S25, 16E35, 18E30

description: Poitou-Tate duality for the Galois group of an extension of a global field with appropriately restricted ramification can be seen as taking place between the cohomology of a compact or discrete module and the compactly-supported cohomology of its Pontryagin dual. Nekovar proved a derived variant of this in which the module is replaced by a bounded complex of modules over the group ring of R that are finitely generated over R, where R is a complete commutative local Noetherian ring with finite residue field. Here, the Pontryagin dual is replaced by the Grothendieck dual, which is itself a bounded complex of modules with finitely generated cohomology. Nekovar's duality then takes place in the derived category of R-modules. We extend Nekovar's result to the setting of noncommutative Iwasawa theory. That is, we exhibit a duality between complexes computing Iwasawa cohomology and its compactly supported variant in the derived category of finitely generated modules over the Iwasawa algebra over R of a p-adic Lie extension.
description: 62 pages
Application of multi-mineral detrital provenance to unravelling sediment recycling, tectonic events, and paleogeography in northern Gondwana
Creators: name: BARDEHZARDI, YOUSEF ZOLEIKHAEI
Publisher: name: Monash University
Year: 2023
Subjects: Earth system sciences
Stratigraphy (incl. biostratigraphy, sequence stratigraphy and basin analysis)
Sedimentology
Geochronology

description: This thesis improves provenance methods for determining the source region of ancient sediments by measuring the isotopic age, geochemistry, and surface morphology of multiple mineral grains in the sediments. This information is used to establish the link between the sedimentary basin in northern margin of Gondwana supercontinent and the source region of its sediments during 600 to 450 million years ago. The data help to reconstructing the ancient geography of this region and the evolution of continents forming this margin. The results indicate that the northern Gondwana was a relatively flat basin and the sediments were sourced from internal Gondwana.
title: Compatibility of molten salt with metallic materials: corrosion procedures
title: SALTOpower | Fast-Track School #1 | Molten Salt technologies and energy system applications
titleType: Subtitle
Creators: name: Veca, Elisabetta
Publisher: name: Zenodo
Year: 2023

description: Presentation carried out within the scope of Fast-Track School #1 of the SALTOpower project, on "Molten Salt technologies and energy system applications", namely "Compatibility of molten salt with metallic materials: corrosion procedures" by researcher Elisabetta Veca, ENEA - Casaccia Research Centre.
Additional file 7 of Social networks and cognitive function in older adults: findings from the HAPIEE study
Creators: name: Nie, Yifan
name: Richards, Marcus
name: Kubinova, Ruzena
name: Titarenko, Anastasiya
name: Malyutina, Sofia
name: Kozela, Magdalena
name: Pajak, Andrzej
name: Bobak, Martin
name: Ruiz, Milagros
Publisher: name: figshare
Year: 2021
Subjects: subject: Neuroscience
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 7. Cross-sectional associations of social network characteristics with global cognitive function in participants re-examined between 3-4 years of follow-up.
Taming multiparticle entanglement
Creators: name: Jungnitsch, Bastian
name: Moroder, Tobias
name: Gühne, Otfried
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an approach to characterize genuine multiparticle entanglement using appropriate approximations in the space of quantum states. This leads to a criterion for entanglement which can easily be calculated using semidefinite programming and improves all existing approaches significantly. Experimentally, it can also be evaluated when only some observables are measured. Furthermore, it results in a computable entanglement monotone for genuine multiparticle entanglement. Based on this, we develop an analytical approach for the entanglement detection in cluster states, leading to an exponential improvement compared with existing schemes.
description: 4 pages + appendix, 2 figures, published version; see http://www.mathworks.com/matlabcentral/fileexchange/30968 for associated MATLAB code
title: Salt mixtures for molten salt applications
title: SALTOpower | Fast-Track School #1 | Molten Salt technologies and energy system applications
titleType: Subtitle
Creators: name: Tizzoni, Anna Chiara
Publisher: name: Zenodo
Year: 2023

description: Presentation carried out within the scope of Fast-Track School #1 of the SALTOpower project, on "Molten Salt technologies and energy system applications", namely "Salt mixtures for molten salt applications" by researcher Anna Chiara Tizzoni, ENEA - Centro Ricerche Casaccia.
LIKWID: Lightweight Performance Tools
Creators: name: Treibig, Jan
name: Hager, Georg
name: Wellein, Gerhard
Publisher: name: arXiv
Year: 2011
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: Exploiting the performance of today's microprocessors requires intimate knowledge of the microarchitecture as well as an awareness of the ever-growing complexity in thread and cache topology. LIKWID is a set of command line utilities that addresses four key problems: Probing the thread and cache topology of a shared-memory node, enforcing thread-core affinity on a program, measuring performance counter metrics, and microbenchmarking for reliable upper performance bounds. Moreover, it includes a mpirun wrapper allowing for portable thread-core affinity in MPI and hybrid MPI/threaded applications. To demonstrate the capabilities of the tool set we show the influence of thread affinity on performance using the well-known OpenMP STREAM triad benchmark, use hardware counter tools to study the performance of a stencil code, and finally show how to detect bandwidth problems on ccNUMA-based compute nodes.
description: 12 pages
Reviewing Laubscher’s empirical method to estimate subsidence limits
Creators: name: Contreras, Constanza Patricia
Publisher: name: University of British Columbia
Year: 2022

description: A key characteristic of cave mining is the formation of a significant surface subsidence crater, which may impact nearby infrastructures, as well as have important environmental impacts. The most used empirical method in cave mining for estimating subsidence damage limits is the Laubscher method (2000). The original dataset at the core of the Laubscher chart does not reflect the conditions of the modern caves (i.e., deeper orebodies, stronger rock masses, and higher production rates). In addition, there is a need to review the definition of cave material factor. This research explains the limitations related to the method and evaluates new cases from recent cave mining operations for checking the validity of the empirical subsidence chart. In addition, the predicted cave angles could be used to calculate the volume of broken rock; however different factors could affect the proportion between the tons extracted and the growth of the crater, which are evaluated in this research using a case study. Among the limitations of this method are the MRMR, which has a lack of detailed guidelines to calculate its values; the unconfined area, related to the lower end of the “factor” and MRMR scale of the chart, which shows predicted cave angles too conservatives; the irregular topography with a greater difference in elevation, which is seen to result in lower cave angles over the peaks than the cave angles predicted using the method; the mining sequence and the structures, which are not considered in the method. The evaluation of new cases from recent cave mining operations showed that Laubscher’s method performs well in the prediction of cave angles; due to the average distance between the measured data values and the predicted data values is 4°. Moreover, the database shows a similar tendency that Laubscher’s chart because for a depth greater than 600 m the measured cave angles tend towards the same range of values (80°±4°) regardless of their geotechnical quality. Among the factors that affect the relationship between tons extracted by caving mine and estimated growth of the surface crater are the percentage of extraction, the topography, geotechnical quality, and mining sequence.
Wavelet methods for locally stationary time series
Creators: name: McGonigle, Euan
Publisher: name: Lancaster University
Year: 2020

description: Time series data can often possess complex and dynamic characteristics. Two key statistical properties of time series -- the mean (first-order) and autocovariance (second-order) -- commonly change over time. Modelling this evolution of so-called nonstationary time series is crucial to making informed inference on the data. This thesis focuses on wavelet-based methodology for the simultaneous modelling of first and second-order nonstationary time series, for which we provide three main contributions. First, we propose a method using differencing to jointly estimate the time-varying trend and second-order structure of a time series, within the locally stationary wavelet processes framework. We discuss a wavelet-based estimator of the second-order structure of the original time series by employing differencing, and show how this can be incorporated into the estimation of the trend of the time series. Second, we propose a framework for modelling series with simultaneous time-varying first and second-order structure by removing the restrictive zero-mean assumption of locally stationary wavelet (LSW) processes and extending the applicability of the locally stationary wavelet model to include a trend component. We develop associated estimation theory for both first and second-order time series quantities and show that our estimators achieve good properties in isolation of each other by making appropriate assumptions on the series trend. Last, we consider simultaneous modelling of first and second-order structure in the scenario where the mean function is piecewise constant. We propose a likelihood-based method using wavelets to detect changes in mean in time series that exhibit time-varying autocovariance. This allows for a more flexible model for mean changepoint detection, since commonly the second-order structure is assumed to be independent and identically distributed. The performance of the method is investigated via simulation, and is shown to perform well in a variety of time series scenarios.
''La lotería en Babilonia'' de Jorge Luis Borges. Píldora audiovisual
Creators: name: Francisca Noguerol Jiménez
name: Borja Cano Vidal
name: José Antonio Paniagua García
name: Vega Sánchez-Aparicio
name: Andrea Elvira-Navarro
Publisher: name: Zenodo
Year: 2022

description: Material docente elaborado en el seno del proyecto de Innovación Docente «Elaboración de píldoras audiovisuales para la enseñanza de la literatura hispanoamericana» (ID2021/076) concedido en la Universidad de Salamanca durante el curso académico 2021/2022.
Competências socioemocionais como facilitador da aprendizagem organizacional para o desenvolvimento da liderança por enfermeiros
Creators: name: SANTOS, ISES ADRIANA REIS DOS
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Nursing Administration
subject: Hospitality Administration and Management
subject: Organization Development
subject: Leadership Studies
subject: Nursing
subject: FOS: Health sciences
subject: Social and Behavioral Sciences
subject: Educational Leadership
subject: Medicine and Health Sciences
subject: Education
subject: Business
subject: Evidências científicas acerca das competências socioemocionais para o desenvolvimento da liderança em ambiente hospitalar

description: Estudo de mapeamento das competências socioemocionais na enfermagem para o desenvolvimento da liderança em ambiente hospitalar
title: Molten salt thermal energy storage from current two-tank systems to thermocline technology
title: SALTOpower | Fast-Track School #1 | Molten Salt technologies and energy system applications
titleType: Subtitle
Creators: name: Odenthal, Christian
Publisher: name: Zenodo
Year: 2023

description: Presentation carried out within the scope of Fast-Track School #1 of the SALTOpower project, on "Molten Salt technologies and energy system applications", namely "Molten salt thermal energy storage from current two-tank systems to thermocline technology" by researcher Christian Odenthal, DLR.
Abatement of Ionizing Radiation for Superconducting Quantum Devices
Creators: name: Loer, B.
name: Harrington, P. M.
name: Archambault, B.
name: Fuller, E.
name: Pierson, B.
name: Arnquist, I.
name: Harouaka, K.
name: Schlieder, T. D.
name: Kim, D. K.
name: Melville, A. J.
name: Niedzielski, B. M.
name: Yoder, J. K.
name: Serniak, K.
name: Oliver, W. D.
name: Orrell, J. L.
name: Bunker, R.
name: VanDevender, B. A.
name: Warner, M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Ionizing radiation has been shown to reduce the performance of superconducting quantum circuits. In this report, we evaluate the expected contributions of different sources of ambient radioactivity for typical superconducting qubit experiment platforms. Our assessment of radioactivity inside a typical cryostat highlights the importance of selecting appropriate materials for the experiment components nearest to qubit devices, such as packaging and electrical interconnects. We present a shallow underground facility (30-meter water equivalent) to reduce the flux of cosmic rays and a lead shielded cryostat to abate the naturally occurring radiogenic gamma-ray flux in the laboratory environment. We predict that superconducting qubit devices operated in this facility could experience a reduced rate of correlated multi-qubit errors by a factor of approximately 20 relative to the rate in a typical above-ground, unshielded facility. Finally, we outline overall design improvements that would be required to further reduce the residual ionizing radiation rate, down to the limit of current generation direct detection dark matter experiments.
description: 36 pages, 9 figures, 9 tables including appendices. To be submitted to the Journal of Instrumentation
Tsallis entropy approach to radiotherapy treatments
Creators: name: Sotolongo-Grau, O.
name: Rodriguez-Perez, Daniel
name: Sotolongo-Costa, Oscar
name: Antoranz, J. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: Medical Physics (physics.med-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The biological effect of one single radiation dose on a living tissue has been described by several radiobiological models. However, the fractionated radiotherapy requires to account for a new magnitude: time. In this paper we explore the biological consequences posed by the mathematical prolongation of a model to fractionated treatment. Nonextensive composition rules are introduced to obtain the survival fraction and equivalent physical dose in terms of a time dependent factor describing the tissue trend towards recovering its radioresistance (a kind of repair coefficient). Interesting (known and new) behaviors are described regarding the effectiveness of the treatment which is shown to be fundamentally bound to this factor. The continuous limit, applicable to brachytherapy, is also analyzed in the framework of nonextensive calculus. Also here a coefficient arises that rules the time behavior. All the results are discussed in terms of the clinical evidence and their major implications are highlighted.
description: 6 figures, accepted for publication to Physica A