cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Architektoniczna przestrzeń edukacyjna w wymiarze nowych technologii informacyjno-komunikacyjnych
Creators: name: Walat, Wojciech
Publisher: name: Szkoła - Zawód - Praca
Year: 2017

description: Współcześnie na każdym kroku usłyszeć można opinię, że żyjemy w społeczeństwie informacyjnym. Z tego względu można założyć, że architektoniczna przestrzeń edukacyjna szkoły powinna być na nowo zdefiniowana. Wynika to z odmienności i społecznego znaczenia zjawisk pojawiających się w ramach przemian cywilizacyjnych społeczeństwa informacyjnego. Analiza tych zjawisk prowadzi do sformułowania wniosków wskazujących na dysfunkcjonalność obecnych rozwiązań edukacyjnych. Z tego powodu koniecznością staje się potrzeba zerwania z dotychczasową praktyką architektury szkolnej ograniczającej się tylko do tworzenia przyjaznej edukacji przestrzeni fizycznej.
description: Szkoła - Zawód - Praca, Nr 14 (2017): Szkoła - Zawód - Praca
Quantum Cryptography Beyond Quantum Key Distribution
Creators: name: Broadbent, Anne
name: Schaffner, Christian
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum cryptography is the art and science of exploiting quantum mechanical effects in order to perform cryptographic tasks. While the most well-known example of this discipline is quantum key distribution (QKD), there exist many other applications such as quantum money, randomness generation, secure two- and multi-party computation and delegated quantum computation. Quantum cryptography also studies the limitations and challenges resulting from quantum adversaries---including the impossibility of quantum bit commitment, the difficulty of quantum rewinding and the definition of quantum security models for classical primitives. In this review article, aimed primarily at cryptographers unfamiliar with the quantum world, we survey the area of theoretical quantum cryptography, with an emphasis on the constructions and limitations beyond the realm of QKD.
description: 45 pages, over 245 references
Natural coordinate descent algorithm for L1-penalised regression in generalised linear models
Creators: name: Michoel, Tom
Publisher: name: arXiv
Year: 2014
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: The problem of finding the maximum likelihood estimates for the regression coefficients in generalised linear models with an L1 sparsity penalty is shown to be equivalent to minimising the unpenalised maximum log-likelihood function over a box with boundary defined by the L1-penalty parameter. In one-parameter models or when a single coefficient is estimated at a time, this result implies a generic soft-thresholding mechanism which leads to a novel coordinate descent algorithm for generalised linear models that is entirely described in terms of the natural formulation of the model and is guaranteed to converge to the true optimum. A prototype implementation for logistic regression tested on two large-scale cancer gene expression datasets shows that this algorithm is efficient, particularly so when a solution is computed at set values of the L1-penalty parameter as opposed to along a regularisation path. Source code and test data are available from http://tmichoel.github.io/glmnat/.
description: 15 pages, 3 figures; revised version with additional numerical experiments
Strategic gas storage coordination among EU member states during supply crises: an optimization approach
Creators: name: Sesini, Marzia
Publisher: name: Imperial College London
Year: 2021

description: Given the strong presence of natural gas in the European Union (EU) energy mix (25%), this work focuses on natural gas strategic storage reserves as a first non-market based solidarity measure to increase energy security among EU Member States in response to natural gas supply “high-impact, low-probability” events (HILP). It presents a two-stage stochastic LP optimization gas transport model minimizing costs to study the short-term resilience of the network to supply shocks when using strategic storage in a coordinated fashion and including a policy perspective (i.e., EU Regulation 2017/1938) to evaluate the impact of HILP on the level of demand curtailment, survival time, and the natural gas supply mix among MS in the EU. The model is implemented to analyze three applications related to natural gas storage: (1) assess resilience and security in the EU gas system during a real case of shock in demand during an exceptionally cold weather; (2) test the role of coordination in case of short-term HILP events in the EU natural gas network; and (3) examine solidarity measures, such as strategic storage, among EU Regional Risk Groups during gas system disruptions due to HILP events. Results highlight the value of gas infrastructure diversification and the role of storage in the gas market and its inherent value in the system. In particular, the cost efficiency found in the coordinated use of strategic storage during a short-term emergency emphasizes the importance of storage-based solidarity in mitigating the effects of HILP supply disruptions and securing resources to the grid. They indicate that geographical proximity alone, without solidarity interventions, is insufficient to provide system resilience and that solidarity interventions enhance survival time for Regional Risk Groups in the EU and reduce liquefied natural gas (LNG) and system costs, offering an additional insight on the interplay between storage and LNG.
Generalized Contact Geometry and T-Duality
Creators: name: Aldi, Marco
name: Grandini, Daniele
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53D18, 53Z05

description: We study generalized almost contact structures on odd-dimensional manifolds. We introduce a notion of integrability and show that the class of these structures is closed under symmetries of the Courant-Dorfman bracket, including T-duality. We define a notion of geometric type for generalized almost contact structures, and study its behavior under T-duality.
description: 26 pages. Several changes in the exposition
Fabricating multifunctional nanoparticles bonded to enzymatically oxidized fabrics for their various applications
Creators: name: Vemuri, Praveen Kumar
Publisher: name: figshare
Year: 2020
Subjects: Biotechnology

description: An effective procedure for obtaining fragrance finished fabric based on cellulose and chitosan has been developed. The first step involves the formation of oxidized cellulose, which is able to form a schiff’s base with the chitosan. In order tomaintain the strength of fabric, a novel enzymatic method for oxidation of cellulose is adopted. In the second step, chitosan nanoparticles loaded with the jasmine oil are prepared and coated on the oxidized cellulosic fabric by forming a strong covalent bond. The FTIR analysis proves the formation of cellulose-chitosan composite. Scanning electron microscopic study demonstrates the coating of nanoparticles on the cotton fabrics. The retention capacity of the jasmine o il in the fabric after repeated washings is proved by GC analysis. The cotton fabrics finished by the covalent bonded coating of chitosan nanoparticles loaded with the jasmine fragrance are found to have a better sustained release capability for a longer time as compared to the conventionally entrapped nanoparticles in the fabric
Current Induced Vortex Wall Dynamics in Helical Magnetic Systems
Creators: name: Roostaei, Bahman
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Nontrivial topology of interfaces separating anti-chiral phases in helical magnets result in new effects as they interact with spin polarized current. These interfces or vortex walls consist of a one dimensional array of vortex lines. Topological Hall effect comes as a natural expectation. Also Lenz's law will result in a new damping mechanism in these systems. We study the dynamics of these wall interacting with electric current and use fundamental electromagntic laws to calculate this effect. On the other hand discrete nature of these walls affects their pinning and result in low depinning current density. We predict the value of this currnt using collective pinnng theory. Finally throughout this study we propose possible standard experiments that may distinguish our theoretical findings.
List of articles included from: Characteristics, treatment, and outcomes of Othello Syndrome. A systematic review of case report and case series
Creators: name: Báez Villagómez, Ana Emilia
name: Araúz, Alison
name: Meza, Daniela
name: Pillajo Tigse, Edgar Ismael
name: Tandazo, Mateo
name: Yupanqui, Michael
Publisher: name: figshare
Year: 2023
Subjects: Mental health services

description: Othello syndrome is a rare psychiatric condition characterized by the false belief that a spouse or partner is unfaithful. This can lead to aggressive behavior and intense jealousy. It's commonly seen in older men and is associated with Parkinson's disease and other neurological conditions. Treatment typically involves a combination of medication and therapy.​
List of articles included from Characteristics, treatment, and outcomes of Othello Syndrome A systematic review of case report and case series
Creators: name: Báez Villagómez, Ana Emilia
name: Araúz, Alison
name: Meza, Daniela
name: Pillajo Tigse, Edgar Ismael
name: Tandazo, Mateo
name: Yupanqui, Michael
Publisher: name: figshare
Year: 2023
Subjects: Mental health services

description: Othello syndrome is a rare psychiatric condition characterized by the false belief that a spouse or partner is unfaithful. This can lead to aggressive behavior and intense jealousy. It's commonly seen in older men and is associated with Parkinson's disease and other neurological conditions. Treatment typically involves a combination of medication and therapy.​
Negative frequencies in pulse propagation equations and the double analytic signal
Creators: name: Aguero-Santacruz, Raul
name: Bermudez, David
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In recent years, the topic of negative frequencies has resurfaced in optics motivated by the optical analogue of Hawking radiation. We discuss the physical meaning of negative frequencies and the conditions under which they are relevant. We review how negative frequencies are treated in current pulse propagation models based on the electric field and the analytic signal. We focus on experimentally measured signals predicted by the conservation of negative comoving frequency in the nonlinear polarization terms to advance these concepts. We propose a new formalism called the double analytic signal which clearly separates negative frequencies from positive ones. Additionally, we reduce this new formalism to the analytic signal to prove their equivalence. Throughout the paper, we present numerical solutions of the unidirectional pulse propagation equation to illustrate the electric field, analytic signal, and double analytic signal formalisms and to highlight their differences.
description: 23 pages, 7 figures, 1 table
Kinetic Energy Estimates for the Accuracy of the Time-Dependent Hartree-Fock Approximation with Coulomb Interaction
Creators: name: Bach, Volker
name: Breteaux, Sébastien
name: Petrat, Sören
name: Pickl, Peter
name: Tzaneteas, Tim
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the time evolution of a system of $N$ spinless fermions in $\mathbb{R}^3$ which interact through a pair potential, e.g., the Coulomb potential. We compare the dynamics given by the solution to Schr{ö}dinger's equation with the time-dependent Hartree-Fock approximation, and we give an estimate for the accuracy of this approximation in terms of the kinetic energy of the system. This leads, in turn, to bounds in terms of the initial total energy of the system.
description: 35 pages
On Minimal Trajectories for Mobile Sampling of Bandlimited Fields
Creators: name: Gröchenig, Karlheinz
name: Romero, José Luis
name: Unnikrishnan, Jayakrishnan
name: Vetterli, Martin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 94A20, 94A12

description: We study the design of sampling trajectories for stable sampling and the reconstruction of bandlimited spatial fields using mobile sensors. The spectrum is assumed to be a symmetric convex set. As a performance metric we use the path density of the set of sampling trajectories that is defined as the total distance traveled by the moving sensors per unit spatial volume of the spatial region being monitored. Focussing first on parallel lines, we identify the set of parallel lines with minimal path density that contains a set of stable sampling for fields bandlimited to a known set. We then show that the problem becomes ill-posed when the optimization is performed over all trajectories by demonstrating a feasible trajectory set with arbitrarily low path density. However, the problem becomes well-posed if we explicitly specify the stability margins. We demonstrate this by obtaining a non-trivial lower bound on the path density of an arbitrary set of trajectories that contain a sampling set with explicitly specified stability bounds.
description: 28 pages, 8 figures
The AGN fraction in high-redshift protocluster candidates selected by Planck and Herschel
Creators: name: Gatica, Caleb
name: Demarco, Ricardo
name: Dole, Hervé
name: Polletta, Maria
name: Frye, Brenda
name: Martinache, Clement
name: Rettura, Alessandro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A complete understanding of the mass assembly history of structures in the universe requires the study of the growth of galaxies and their supermassive black holes (SMBHs) as a function of their local environment over cosmic time. In this context, it is important to quantify the effects that the early stages of galaxy cluster development have on the growth of SMBHs. We used a sample of Herschel/SPIRE sources of $\sim$ 228 red and compact Planck-selected protocluster (PC) candidates to estimate the active galactic nuclei (AGN) fraction from a large sample of galaxies within these candidates. We estimate the AGN fraction by using the mid-infrared (mid-IR) photometry provided by the WISE/AllWISE data of $\sim650$ counterparts at high redshifts. We created an AllWISE mid-IR colour-colour selection using a clustering machine learning algorithm and two {\it WISE} colour cuts using the 3.4 $μm$ (W1), 4.6 $μm$ (W2) and 12 $μm$ (W3) passbands, to classify sources as AGN. We also compare the AGN fraction in PCs with that in the field to better understand the influence of the environment on galaxy development. We found an AGN fraction of $f_{AGN} = 0.113 \pm 0.03$ in PC candidates and an AGN fraction of $f_{AGN} = 0.095 \pm 0.013$ in the field. We also selected a subsample of `red' SPIRE subsample with a higher overdensity significance, obtaining $f_{AGN} = 0.186 \pm 0.044$, versus $f_{AGN} = 0.037 \pm 0.010$ of `non-red sources', consistent with higher AGN fractions for denser environments. We conclude that our results point towards a higher AGN fraction in PCs, similar to other studies.
description: 11 pages, 9 figures, 3 tables (+2 pages, 1 figure in Appendix). Accepted for publication in MNRAS
Domination parameters with number 2: interrelations and algorithmic consequences
Creators: name: Bonomo, Flavia
name: Bresar, Bostjan
name: Grippo, Luciano N.
name: Milanic, Martin
name: Safe, Martin D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C69, 05C85

description: In this paper, we study the most basic domination invariants in graphs, in which number 2 is intrinsic part of their definitions. We classify them upon three criteria, two of which give the following previously studied invariants: the weak $2$-domination number, $γ_{w2}(G)$, the $2$-domination number, $γ_2(G)$, the $\{2\}$-domination number, $γ_{\{2\}}(G)$, the double domination number, $γ_{\times 2}(G)$, the total $\{2\}$-domination number, $γ_{t\{2\}}(G)$, and the total double domination number, $γ_{t\times 2}(G)$, where $G$ is a graph in which a corresponding invariant is well defined. The third criterion yields rainbow versions of the mentioned six parameters, one of which has already been well studied, and three other give new interesting parameters. Together with a special, extensively studied Roman domination, $γ_R(G)$, and two classical parameters, the domination number, $γ(G)$, and the total domination number, $γ_t(G)$, we consider 13 domination invariants in graphs $G$. In the main result of the paper we present sharp upper and lower bounds of each of the invariants in terms of every other invariant, large majority of which are new results proven in this paper. As a consequence of the main theorem we obtain some complexity results for the studied invariants, in particular regarding the existence of approximation algorithms and inapproximability bounds.
description: 45 pages, 4 tables, 7 figures
Additional file 2 of Therapists’ perspectives on using brain-computer interface-triggered functional electrical stimulation therapy for individuals living with upper extremity paralysis: a qualitative case series study
Creators: name: Jervis-Rademeyer, Hope
name: Ong, Kenneth
name: Djuric, Alexander
name: Munce, Sarah
name: Musselman, Kristin E.
name: Marquez-Chin, Cesar
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Neuroscience
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. COREQ (COnsolidated criteria for REporting Qualitative research) Checklist. Checklist that describes the inclusion and location of items considered part of research for studies involving interviews or focus groups.
Probing the diffuse baryon distribution with the lensing-tSZ cross-correlation
Creators: name: Ma, Yin-Zhe
name: Van Waerbeke, Ludovic
name: Hinshaw, Gary
name: Hojjati, Alireza
name: Scott, Douglas
name: Zuntz, Joe
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Approximately half of the Universe's baryons are in a form that has been hard to detect directly. However, the missing component can be traced through the cross-correlation of the thermal Sunyaev-Zeldovich (tSZ) effect with weak gravitational lensing. We build a model for this correlation and use it to constrain the extended baryon component, employing data from the Canada France Hawaii Lensing Survey and the {\it Planck\/} satellite. The measured correlation function is consistent with an isothermal $β$-model for the halo gas pressure profile, and the 1- and 2-halo terms are both detected at the 4$σ$ level. In addition, we measure the hydrostatic mass bias $(1-b)=0.79^{+0.07}_{-0.10}$, which is consistent with numerical simulation results and the constraints from X-ray observations. The effective temperature of the gas is found to be in the range ($7\times10^{5}$--$3 \times10^{8}$)\,K, with approximately $50\%$ of the baryons appearing to lie beyond the virial radius of the halos, consistent with current expectations for the warm-hot intergalactic medium.
description: 12 pages, 6 figures, 3 table
The Stern diatomic sequence via generalized Chebyshev polynomials
Creators: name: De Angelis, Valerio
Publisher: name: arXiv
Year: 2015
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11B83

description: Let a(n) be the Stern's diatomic sequence, and let x1,...,xr be the distances between successive 1's in the binary expansion of the (odd) positive integer n. We show that a(n) is obtained by evaluating generalized Chebyshev polynomials when the variables are given the values x1+1, ..., xr+1, and we derive a formula expressing the same polynomials in terms of sets of increasing integers of alternating parity. We also show that a(n) = Det(Ir + Mr), where Ir is the rxr identity matrix, and Mr is the rxr matrix that has x1,...,xr along the main diagonal, then all 1's just above and below the main diagonal, and all the other entries are 0.
Additional file 1 of Therapists’ perspectives on using brain-computer interface-triggered functional electrical stimulation therapy for individuals living with upper extremity paralysis: a qualitative case series study
Creators: name: Jervis-Rademeyer, Hope
name: Ong, Kenneth
name: Djuric, Alexander
name: Munce, Sarah
name: Musselman, Kristin E.
name: Marquez-Chin, Cesar
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Neuroscience
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Semi-structured interview guide based on the COM-B model of behaviour change self-evaluation questionnaire described in ‘The Behaviour Change Wheel: a guide to designing interventions’ by Michie, Atkins and West (2014).
On the minimal set of conservation laws and the Hamiltonian structure of the Whitham equations
Creators: name: Maltsev, A. Ya.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider the questions connected with the Hamiltonian properties of the Whitham equations in case of several spatial dimensions. An essential point of our approach here is a connection of the Hamiltonian structure of the Whitham system with the finite-dimensional Poisson bracket defined on the space of periodic or quasi-periodic solutions. From our point of view, this approach gives a possibility to construct the Hamiltonian structure of the Whitham equations under minimal requirements on the properties of the initial system. The Poisson bracket for the Whitham system can be considered here as a deformation of the finite-dimensional bracket with the aid of the Dubrovin - Novikov procedure of bracket averaging. At the end, we consider the examples where the constructions of the paper play an essential role for the construction of the Poisson bracket for the Whitham system.
description: 69 pages, 1 figure, latex
Clique coloring $B_1$-EPG graphs
Creators: name: Bonomo, Flavia
name: Mazzoleni, María Pía
name: Stein, Maya
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We consider the problem of clique coloring, that is, coloring the vertices of a given graph such that no (maximal) clique of size at least two is monocolored. It is known that interval graphs are $2$-clique colorable. In this paper we prove that $B_1$-EPG graphs (edge intersection graphs of paths on a grid, where each path has at most one bend) are $4$-clique colorable. Moreover, given a $B_1$-EPG representation of a graph, we provide a linear time algorithm that constructs a $4$-clique coloring of it.
description: 9 Pages
On-line approach to off-line coloring problems on graphs with geometric representations
Creators: name: Krawczyk, Tomasz
name: Walczak, Bartosz
Publisher: name: arXiv
Year: 2014
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Computational Geometry (cs.CG)
subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 05C15, 05C62, 68W27

description: The main goal of this paper is to formalize and explore a connection between chromatic properties of graphs with geometric representations and competitive analysis of on-line algorithms, which became apparent after the recent construction of triangle-free geometric intersection graphs with arbitrarily large chromatic number due to Pawlik et al. We show that on-line graph coloring problems give rise to classes of game graphs with a natural geometric interpretation. We use this concept to estimate the chromatic number of graphs with geometric representations by finding, for appropriate simpler graphs, on-line coloring algorithms using few colors or proving that no such algorithms exist. We derive upper and lower bounds on the maximum chromatic number that rectangle overlap graphs, subtree overlap graphs, and interval filament graphs (all of which generalize interval overlap graphs) can have when their clique number is bounded. The bounds are absolute for interval filament graphs and asymptotic of the form $(\log\log n)^{f(ω)}$ for rectangle and subtree overlap graphs, where $f(ω)$ is a polynomial function of the clique number and $n$ is the number of vertices. In particular, we provide the first construction of geometric intersection graphs with bounded clique number and with chromatic number asymptotically greater than $\log\log n$. We also introduce a concept of $K_k$-free colorings and show that for some geometric representations, $K_3$-free chromatic number can be bounded in terms of clique number although the ordinary ($K_2$-free) chromatic number cannot. Such a result for segment intersection graphs would imply a well-known conjecture that $k$-quasi-planar geometric graphs have linearly many edges.
description: Final version, minor revision
The Properties of Cosmic Velocity Fields
Creators: name: Hahn, Oliver
name: Angulo, Raul E.
name: Abel, Tom
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Understanding the velocity field is very important for modern cosmology: it gives insights to structure formation in general, and also its properties are crucial ingredients in modelling redshift-space distortions and in interpreting measurements of the kinetic Sunyaev-Zeldovich effect. Unfortunately, characterising the velocity field in cosmological N-body simulations is inherently complicated by two facts: i) The velocity field becomes manifestly multi-valued after shell-crossing and has discontinuities at caustics. This is due to the collisionless nature of dark matter. ii) N-body simulations sample the velocity field only at a set of discrete locations, with poor resolution in low-density regions. In this paper, we discuss how the associated problems can be circumvented by using a phase-space interpolation technique. This method provides extremely accurate estimates of the cosmic velocity fields and its derivatives, which can be properly defined without the need of the arbitrary "coarse-graining" procedure commonly used. We explore in detail the configuration-space properties of the cosmic velocity field on very large scales and in the highly nonlinear regime. In particular, we characterise the divergence and curl of the velocity field, present their one-point statistics, analyse the Fourier-space properties and provide fitting formulae for the velocity divergence bias relative to the non-linear matter power spectrum. We furthermore contrast some of the interesting differences in the velocity fields of warm and cold dark matter models. We anticipate that the high-precision measurements carried out here will help to understand in detail the dynamics of dark matter and the structures it forms.
description: 17 pages, 17 figures, matches version accepted by MNRAS; minor changes: improved discussion of real space properties and relation to smoothed fields, explicit derivation of multi-stream derivatives
Exact Classical Correspondence in Quantum Cosmology
Creators: name: John, Moncy V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We find a Friedmann model with appropriate matter/energy density such that the solution of the Wheeler-DeWitt equation exactly corresponds to the classical evolution. The well-known problems in quantum cosmology disappear in the resulting coasting evolution. The exact quantum-classical correspondence is demonstrated with the help of the de Broglie-Bohm and modified de Broglie-Bohm approaches to quantum mechanics. It is reassuring that such a solution leads to a robust model for the universe, which agrees well with cosmological expansion indicated by SNe Ia data.
description: Accepted for publication in Gravitation and Cosmology
The gravitational redshift of photons traversing a collapsing dust cloud and observable consequences
Creators: name: Ortiz, Néstor
name: Sarbach, Olivier
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We analyze the frequency shift of photons propagating on an asymptotically flat spacetime describing a collapsing, spherical dust cloud. We focus on the case where the interaction of the photons with the matter can be neglected. Under fairly general assumptions on the initial data characterizing the collapse, we show that photons with zero angular momentum which travel from past to future null infinity, crossing the collapsing cloud through its center, are always redshifted with respect to stationary observers. We compute this redshift as a function of proper time of a distant stationary observer and discuss its dependency on the mass distribution of the cloud. Possible implications of this redshift effect for weak cosmic censorship and light propagation in cosmological spacetimes are also briefly discussed.
description: 15 pages, 6 figures. Added one figure and clarified conclusions. To appear in Physical Review D
On the thinness and proper thinness of a graph
Creators: name: Bonomo, Flavia
name: de Estrada, Diego
Publisher: name: arXiv
Year: 2017
Subjects: subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: Graphs with bounded thinness were defined in 2007 as a generalization of interval graphs. In this paper we introduce the concept of proper thinness, such that graphs with bounded proper thinness generalize proper interval graphs. We study the complexity of problems related to the computation of these parameters, describe the behavior of the thinness and proper thinness under three graph operations, and relate thinness and proper thinness with other graph invariants in the literature. Finally, we describe a wide family of problems that can be solved in polynomial time for graphs with bounded thinness, generalizing for example list matrix partition problems with bounded size matrix, and enlarge this family of problems for graphs with bounded proper thinness, including domination problems.
Naturally dualizable algebras omitting types 1 and 5 have a cube term
Creators: name: Moore, Matthew
Publisher: name: arXiv
Year: 2014
Subjects: subject: Rings and Algebras (math.RA)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 08A40

description: An early result in the theory of Natural Dualities is that an algebra with a near unanimity (NU) term is dualizable. A converse to this is also true: if V(A) is congruence distributive and A is dualizable, then A has an NU term. An important generalization of the NU term for congruence distributive varieties is the cube term for congruence modular (CM) varieties, and it has been thought that a similar characterization of dualizability for algebras in a CM variety would also hold. We prove that if A omits tame congruence types 1 and 5 (all locally finite CM varieties omit these types) and is dualizable, then A has a cube term.
Additional file 1 of The genetic and biochemical determinants of mRNA degradation rates in mammals
Creators: name: Agarwal, Vikram
name: Kelley, David R.
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figures S1-S8. Supplementary figures S1 to S8.
Additional file 1 of Using a cohort study of diabetes and peripheral artery disease to compare logistic regression and machine learning via random forest modeling
Creators: name: Austin, Andrea M.
name: Ramkumar, Niveditta
name: Gladders, Barbara
name: Barnes, Jonathan A.
name: Eid, Mark A.
name: Moore, Kayla O.
name: Feinberg, Mark W.
name: Creager, Mark A.
name: Bonaca, Marc
name: Goodney, Philip P.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Additional file 1: Appendix: Figure 1. Random forest algorithm for prediction. Figure 2. Decision tree construction and prediction from randomforest algorithm.
Additional file 2 of White blood cells and chronic rhinosinusitis: a Mendelian randomization study
Creators: name: Pongdee, Thanai
name: Bielinski, Suzette J.
name: Decker, Paul A.
name: Kita, Hirohito
name: Larson, Nicholas B.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 2: Table S1. Egger intercept test.
Julian Ernst Besag, 26 March 1945 -- 6 August 2010, a biographical memoir
Creators: name: Diggle, Peter J.
name: Green, Peter J.
name: Silverman, Bernard W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Other Statistics (stat.OT)
subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: Julian Besag was an outstanding statistical scientist, distinguished for his pioneering work on the statistical theory and analysis of spatial processes, especially conditional lattice systems. His work has been seminal in statistical developments over the last several decades ranging from image analysis to Markov chain Monte Carlo methods. He clarified the role of auto-logistic and auto-normal models as instances of Markov random fields and paved the way for their use in diverse applications. Later work included investigations into the efficacy of nearest neighbour models to accommodate spatial dependence in the analysis of data from agricultural field trials, image restoration from noisy data, and texture generation using lattice models.
description: 26 pages, 14 figures; minor revisions, omission of full bibliography
On Multicorns and Unicorns II: Bifurcations in Spaces of Antiholomorphic Polynomials
Creators: name: Mukherjee, Sabyasachi
name: Nakane, Shizuo
name: Schleicher, Dierk
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37F10, 37F20, 37F45, 30D05

description: The multicorns are the connectedness loci of unicritical antiholomorphic polynomials $\bar{z}^d + c$. We investigate the structure of boundaries of hyperbolic components: we prove that the structure of bifurcations from hyperbolic components of even period is as one would expect for maps that depend holomorphically on a complex parameter (for instance, as for the Mandelbrot set; in this setting, this is a non-obvious fact), while the bifurcation structure at hyperbolic components of odd period is very different. In particular, the boundaries of odd period hyperbolic components consist only of parabolic parameters, and there are bifurcations between hyperbolic components along entire arcs, but only of bifurcation ratio $2$. We also count the number of hyperbolic components of any period of the multicorns. Since antiholomorphic polynomials depend only real-analytically on the parameters, most of the techniques used in this paper are quite different from the ones used to prove the corresponding results in a holomorphic setting.
description: Some proofs have been refined, and details have been added in others
Cryogenic spin Peltier effect detected by a RuO$_2$-AlO$_x$ on-chip microthermometer
Creators: name: Kikkawa, Takashi
name: Kiguchi, Haruka
name: Kaverzin, Alexey A.
name: Takahashi, Ryo
name: Saitoh, Eiji
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report electric detection of the spin Peltier effect (SPE) in a bilayer consisting of a Pt film and a Y$_{3}$Fe$_5$O$_{12}$ (YIG) single crystal at the cryogenic temperature $T$ as low as 2 K based on a RuO$_2$$-$AlO$_x$ on-chip thermometer film. By means of a reactive co-sputtering technique, we successfully fabricated RuO$_2$$-$AlO$_x$ films having a large temperature coefficient of resistance (TCR) of $\sim 100\% ~\textrm{K}^{-1}$ at around $2~\textrm{K}$. By using the RuO$_2$$-$AlO$_x$ film as an on-chip temperature sensor for a Pt/YIG device, we observe a SPE-induced temperature change on the order of sub-$μ\textrm{K}$, the sign of which is reversed with respect to the external magnetic field $B$ direction. We found that the SPE signal gradually decreases and converges to zero by increasing $B$ up to $10~\textrm{T}$. The result is attributed to the suppression of magnon excitations due to the Zeeman-gap opening in the magnon dispersion of YIG, whose energy much exceeds the thermal energy at 2 K.
description: Editors' Suggestion, 11 pages, 7 figures
Complexity of distances: Theory of generalized analytic equivalence relations
Creators: name: Cúth, Marek
name: Doucha, Michal
name: Kurka, Ondřej
Publisher: name: arXiv
Year: 2018
Subjects: subject: Functional Analysis (math.FA)
subject: Logic (math.LO)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: We generalize the notion of analytic/Borel equivalence relations, orbit equivalence relations, and Borel reductions between them to their continuous and quantitative counterparts: analytic/Borel pseudometrics, orbit pseudometrics, and Borel reductions between them. We motivate these concepts on examples and we set some basic general theory. We illustrate the new notion of reduction by showing that the Gromov-Hausdorff distance maintains the same complexity if it is defined on the class of all Polish metric spaces, spaces bounded from below, from above, and from both below and above. Then we show that $E_1$ is not reducible to equivalences induced by orbit pseudometrics, generalizing the seminal result of Kechris and Louveau. We answer in negative a question of Ben-Yaacov, Doucha, Nies, and Tsankov on whether balls in the Gromov-Hausdorff and Kadets distances are Borel. In appendix, we provide new methods using games showing that the distance-zero classes in certain pseudometrics are Borel, extending the results of Ben Yaacov, Doucha, Nies, and Tsankov. There is a complementary paper of the authors where reductions between the most common pseudometrics from functional analysis and metric geometry are provided.
description: Based on the feedback we received, we decided to split the original version into two parts. The new version is now the first part of this split
On some special classes of contact $B_0$-VPG graphs
Creators: name: Bonomo-Braberman, Flavia
name: Mazzoleni, María Pía
name: Rean, Mariano Leonardo
name: Ries, Bernard
Publisher: name: arXiv
Year: 2018
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05C99

description: A graph $G$ is a $B_0$-VPG graph if one can associate a path on a rectangular grid with each vertex such that two vertices are adjacent if and only if the corresponding paths intersect at at least one grid-point. A graph $G$ is a contact $B_0$-VPG graph if it is a $B_0$-VPG graph admitting a representation with no two paths crossing and no two paths sharing an edge of the grid. In this paper, we present a minimal forbidden induced subgraph characterisation of contact $B_0$-VPG graphs within four special graph classes: chordal graphs, tree-cographs, $P_4$-tidy graphs and $P_5$-free graphs. Moreover, we present a polynomial-time algorithm for recognising chordal contact $B_0$-VPG graphs.
description: 34 pages, 15 figures
Characterising, understanding and predicting the performance of structural power composites
Creators: name: Valkova, Maria Ivelinova
Publisher: name: Imperial College London
Year: 2021

description: Dramatic improvements in power generation, energy storage, system integration and light-weighting are needed to meet increasingly stringent carbon emissions targets for future aircraft and road vehicles. The electrification of transport could significantly reduce direct CO2 emissions; however, battery energy and power density limitations pose a major technological barrier. The introduction of multifunctional structural power composites (SPCs), which simultaneously provide mechanical load-bearing and electrochemical energy storage, offers new possibilities. By replacing conventional materials with SPCs, electrical performance requirements could be relaxed, and vehicle mass could be reduced; however, for SPCs to outperform monofunctional systems, significant performance and reliability improvements are still required. The use of computational models to support experimental efforts has so far been overlooked, despite wide recognition of the benefits of such a combined approach. The aim of this work was to develop predictive finite element models for structural supercapacitor composites (SSCs), and use them to investigate their mechanical, electrical, and electrochemical behaviour. A unit cell modelling technique was used to generate realistic mesoscale models of the complex microstructure of SSCs. The effects of composite manufacturing processes on the final performance of SSCs were investigated through characterisation and modelling of compaction and manufacturing defects. Numerical predictions of the elastic properties of SSCs were evaluated against data from the literature; and the presence of defects was shown to significantly degrade performance. Motivated by the large series resistance of SSCs, direct conduction models were developed to better understand electrical charge transport. Based on investigations of various current collector geometries, design strategies for the mitigation of resistive losses were proposed. To enable analysis of the combined mechanical-electrochemical behaviour of SSCs, an ion transport user element subroutine was developed but could not be validated. Overall, this work demonstrates that substantial improvements in the mechanical and electrical properties of SSCs are possible through control of the composite microstructure. The models developed in this work provide guidance for the optimisation of manufacturing processes and the design of new SSC architectures, and underpin the future certification and deployment of these emerging materials.
Further result on acyclic chromatic index of planar graphs
Creators: name: Wang, Tao
name: Zhang, Yaqiong
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05C15

description: An acyclic edge coloring of a graph $G$ is a proper edge coloring such that every cycle is colored with at least three colors. The acyclic chromatic index $\chiup_{a}'(G)$ of a graph $G$ is the least number of colors in an acyclic edge coloring of $G$. It was conjectured that $\chiup'_{a}(G)\leq Δ(G) + 2$ for any simple graph $G$ with maximum degree $Δ(G)$. In this paper, we prove that every planar graph $G$ admits an acyclic edge coloring with $Δ(G) + 6$ colors.
description: 23 pages, 20 figures, mainly revised Lemma 8 in Discrete Applied Mathematics, 2015. arXiv admin note: text overlap with arXiv:1302.2405
Impact of Biofield Energy Treated Herbomineral Formulation on Mouse Dendritic and Splenocyte Cells for Modulation of Pro-inflammatory Cytokines
Creators: name: Shapiro, Judith Marian
Publisher: name: SMN - The ScienceMedia Network
Year: 2019
Subjects: Natural Sciences

description: The use of herbomineral formulation in the healthcare sector for different chronic diseases is gaining popularity due to its fewer side effects, high safety profile, and cost effectiveness. A new proprietary herbomineral formulation was formulated, consisting of four essential ingredients viz. herbal root extract (ashwagandha), and minerals (zinc, magnesium, and selenium). The study aims to evaluate the in vitro effect of Biofield Energy Healing (The Trivedi Effect®) on the test formulation using murine dendritic (DCs) and splenocyte cells. The herbomineral formulation was divided into two parts; one was represented as control, while the other part was treated with the Biofield Energy Healing Treatment remotely by eighteen renowned Biofield Energy Healers (The Trivedi Effect®) and defined as the Biofield Treated formulation. The effect of the test formulation on these cells were monitored by an estimation of pro-inflammatory cytokines level such as tumor necrosis factor (TNF-α), macrophage inflammatory protein (MIP-1α), and interleukin (IL-1β) in cell culture supernatants at the non-cytotoxic concentrations of the test formulation using MTT assay. The DCs were treated with the Biofield Energy Treated test formulation at different concentrations (i.e. 1.05 to 1052.5 µg/mL) for 24 hours, and the results showed significant (p≤0.001) suppression of TNF-α levels at all the tested concentrations with a maximum percentage decrease by 43.64% at 5.2 µg/mL concentration in the Biofield Treated formulation as compared with the untreated test formulation. Further, the Biofield Treated formulation also demonstrated inhibition of MIP-1α and IL-1β at a concentration range of 0.0000105 to 10.5 µg/mL in LPS stimulated splenocyte cells. There was a significant (p≤0.001) inhibition of MIP-1α (26.52%) and IL-1β (35.28%) in the Biofield Treated test formulation at concentration 0.000105 µg/mL and 0.0000105 µg/mL, respectively in comparison to the untreated test formulation. Overall, these results suggest that the Biofield Energy Healing based herbomineral formulation (The Trivedi Effect®) significantly down-regulated the tested cytokines expression in DCs and splenocyte cells as compared to the untreated formulation. Therefore, the Biofield Healing based formulation might be useful as a better anti-inflammatory product for many chronic and acute inflammatory disease conditions and autoimmune disorders. The Biofield Energy Treatment based formulation can also be effectively applied in cases of organ transplants, stress management and anti-aging by improving overall health.
Gamow Shell Model description of $^7$Li and elastic scattering reaction $^4$He($^3$H, $^3$H)$^4$He
Creators: name: Fernández, J. P. Linares
name: Płoszajczak, M.
name: Michel, N.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Spectrum of $^7$Li and elastic scattering reaction $^4$He($^3$H, $^3$H)$^4$He are studied using the unified description of the Gamow shell model in the coupled-channel formulation (GSMCC). The reaction channels are constructed using the cluster expansion with the two mass partitions [$^4$He + $^3$H], [$^6$Li + n].
description: 10 pages, 3 figures. Presented at Zakopane 2022 Conference on Nuclear Physics
Interacting thin shells in the interior of a Reissner-Nordstrom black hole
Creators: name: Smirnov, Alexey L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we consider some applications of the extended Dray-t'Hooft-Redmount relation. In particular, using this relation, we study geometries of interacting thin shells near the future Cauchy horizon of a Reissner-Nordstrom black hole.
description: 24 pages, 7 figures, minor typos corrected