cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Micromagnets dramatically enhance effects of viscous hydrodynamic flow in two-dimensional electron fluid
Creators: name: Engdahl, Jack N.
name: Keser, Aydin Cem
name: Sushkov, Oleg P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The hydrodynamic behavior of electron fluids in a certain range of temperatures and densities is well established in graphene and in 2D semiconductor heterostructures. The hydrodynamic regime is intrinsically based on electron-electron interactions, and therefore it provides a unique opportunity to study electron correlations. Unfortunately, in all existing measurements, the relative contribution of hydrodynamic effects to transport is rather small. Viscous hydrodynamic effects are masked by impurities, interaction with phonons, uncontrolled boundaries and ballistic effects. This essentially limits the accuracy of measurements of electron viscosity. Fundamentally, what causes viscous friction in the electron fluid is the property of the flow called vorticity. In this paper, we propose to use micromagnets to increase the vorticity by orders of magnitude. Experimental realization of this proposal will bring electron hydrodynamics to a qualitatively new precision level, as well as opening a new way to characterize and externally control the electron fluid.
description: 10 pages, 8 figure. Added references and fixed minor typos in the text to match published article
Where is liquid-vapor interface located in solutions?
Creators: name: Tsekov, R.
name: Cohen, B.
name: Radoev, B.
name: Schulze, H. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Two-component liquid-vapor systems are modeled as two bulk phases divided by a two-dimensional surface phase and the mass and momentum balances are theoretically studied. Comparing the derived equations with some typical models of surface rheology, useful information about the interface location is obtained. It is demonstrated that the surface phase, set on the surface of tension, coincides with the equimolecular interface for insoluble surfactants, whereas it is placed on the surface of zero total mass density excess for soluble ones. The applicability of the model to surface electrostatics is also discussed by introduction of a two-dimensional Maxwell equation for the surface phase.
Pacific sources of biologically significant constituents in the Salish Sea using Lagrangian particle tracking
Creators: name: Beutel, Rebecca
Publisher: name: University of British Columbia
Year: 2023

description: The Salish Sea is a semi-enclosed coastal sea between Vancouver Island and the coast of British Columbia and Washington State, invaluable from both an economic and ecologic perspective. Pacific inflow to the Sea is the main contributor of many biologically important constituents. The contribution of Pacific water masses to the flow through Juan de Fuca Strait (JdF), the Salish Sea’s primary connection to the Pacific Ocean, is explored. Quantitative Lagrangian particle tracking within Ariane, an offline Lagrangian tool capable of volume transport calculations, was applied to two numerical ocean models to track the paths and properties of water parcels before entering JdF and within the Salish Sea. The Coastal Ice Ocean Prediction System (CIOPS) for the west coast was used to track water parcels from JdF backwards in time to analyse their paths on the shelf and offshore before entering the Salish Sea, while SalishSeaCast was used to track water parcels forwards in time to assess the success of the water masses identified in the CIOPS analysis at reaching the Sea’s inner basins as opposed to being advected back out to the shelf region. During summer upwelling, intermediate flow from the north shelf and offshore dominate inflow, while during winter downwelling, intermediate flow from the south shelf and surface flow from the Columbia River plume are the dominant sources. A weaker and less consistent estuarine flow regime in the winter leads to less Pacific inflow overall and a smaller percentage of said inflow reaching the Salish Sea's inner basins than in the summer. Nevertheless, it was found that winter dynamics are the main driver of interannual variability, in part due to the strongly anti-correlated behaviour and distinct properties of the two dominant winter sources. This analysis extends the knowledge on the dynamics of Pacific inflow to the Salish Sea and highlights the importance of winter inflow to the interannual variability in biogeochemical conditions in the region.
Fusions of tensor powers of Johnson schemes
Creators: name: Eberhard, Sean
name: Muzychuk, Mikhail
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 05E30

description: This paper is a follow-up to (arXiv:2203.03687), in which the first author studied primitive association schemes lying between a tensor power $\mathcal{T}_m^d$ of the trivial association scheme and the Hamming scheme $\mathcal{H}(m,d)$. A question which arose naturally in that study was whether all primitive fusions of $\mathcal{T}_m^d$ lie between $\mathcal{T}_{m^e}^{d/e}$ and $\mathcal{H}(m^d, d/e)$ for some $e \mid d$. This note answers this question positively provided that $m$ is large enough. We similarly classify primitive fusions of the $d$th tensor power of a Johnson scheme on $\binom{m}{k}$ points provided $m$ is large enough in terms of $k$ and $d$.
description: 5 pages. Final version incorporating referees' comments. To appear in Algebraic Combinatorics
Topology of large scale structure as test of modified gravity
Creators: name: Wang, Xin
name: Chen, Xuelei
name: Park, Changbom
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The genus of the iso-density contours is a robust measure of the topology of large scale structure, and it is relatively insensitive to nonlinear gravitational evolution, galaxy bias and redshift-space distortion. We show that the growth of density fluctuations is scale-dependent even in the linear regime in some modified gravity theories, which opens a new possibility of testing the theories observationally. We propose to use the genus of the iso-density contours, an intrinsic measure of the topology of large scale structure, as a statistic to be used in such tests. In Einstein's general theory of relativity, density fluctuations are growing at the same rate on all scales in the linear regime, and the genus per comoving volume is almost conserved as structures are growing homologously, so we expect that the genus-smoothing scale relation is basically time-independent. However, in some modified gravity models where structures grow with different rates on different scales, the genus-smoothing scale relation should change over time. This can be used to test the gravity models with large scale structure observations. We studied the case of the f(R) theory, DGP braneworld theory as well as the parameterized post-Friedmann (PPF) models. We also forecast how the modified gravity models can be constrained with optical/IR or redshifted 21cm radio surveys in the near future.
description: Introduction and discussion expanded and refined, conclusion unchanged, 10 pages, 8 figures. ApJ accepted
Additional file 5 of Socially desirable responding in geriatric outpatients with and without mild cognitive impairment and its association with the assessment of self-reported mental health
Creators: name: Nicolini, Paola
name: Abbate, Carlo
name: Inglese, Silvia
name: Mari, Daniela
name: Rossi, Paolo D.
name: Cesari, Matteo
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 5: Tables S5. to S7. Spearman’s correlations between MCSDS and cognitive function scores in the NC and MCI groups and their comparison.
Degenerations of K3 Surfaces of Degree Two
Creators: name: Thompson, Alan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14D06, 14J28 (Primary) 14E30 (Secondary)

description: We consider a semistable degeneration of K3 surfaces, equipped with an effective divisor that defines a polarisation of degree two on a general fibre. We show that the map to the relative log canonical model of the degeneration maps every fibre to either a sextic hypersurface in P(1,1,1,3) or a complete intersection of degree (2,6) in P(1,1,1,2,3). Furthermore, we find an explicit description of the hypersurfaces and complete intersections that can arise, thereby giving a full classification of the possible singular fibres.
description: Final version. Accepted for publication by the Transactions of the American Mathematical Society
Limit distributions of branching Markov chains
Creators: name: Kaimanovich, Vadim A.
name: Woess, Wolfgang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J80, 60J50, 31C20

description: We study branching Markov chains on a countable state space (space of types) $\mathscr{X}$, with the focus on the qualitative aspects of the limit behaviour of the evolving empirical population distributions. No conditions are imposed on the multitype offspring distributions at the points of $\mathscr{X}$ other than to have the same average and to satisfy a uniform $L \log L$ moment condition. We show that the arising population martingale is uniformly integrable. Convergence of population averages of the branching chain is then put in connection with stationary spaces of the associated ordinary Markov chain on $\mathscr{X}$ (assumed to be irreducible and transient). This is applied, in particular, to the boundaries of appropriate compactifications of $\mathscr{X}$. Final considerations consider the general interplay between the measure theoretic boundaries of the branching chain and the associated ordinary chain.
Additional file 6 of Socially desirable responding in geriatric outpatients with and without mild cognitive impairment and its association with the assessment of self-reported mental health
Creators: name: Nicolini, Paola
name: Abbate, Carlo
name: Inglese, Silvia
name: Mari, Daniela
name: Rossi, Paolo D.
name: Cesari, Matteo
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 6: Table S8. Spearman’s correlations between MCSDS and GDS-s and STPI-TA scores in the NC and MCI groups and their comparison.
Self-correction from higher-form symmetry protection on a boundary
Creators: name: Stahl, Charles
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent work has shown that a self-correcting memory can exist in 3 spatial dimensions, provided it is protected by a 1-form symmetry. Requiring that a system's dynamics obey this type of symmetry is equivalent to enforcing a macroscopic number of symmetry terms throughout the bulk. In this paper, we show how to replace the explicit 1-form symmetry in the bulk with an emergent 1-form symmetry. Although the symmetry still has to be explicitly enforced on the boundary, this only requires O(L^2) terms instead of O(L^3) terms. We then reinterpret this boundary as a symmetry-protected topological defect in a bulk topological order. Defects can have interesting memory properties even in the absence of symmetry.
description: 10 pages, 10 figures
Loss-induced phase separation and pairing for 3-species atomic lattice fermions
Creators: name: Privitera, A.
name: Titvinidze, I.
name: Chang, S. -Y.
name: Diehl, S.
name: Daley, A. J.
name: Hofstetter, W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the physics of a three-component Fermi gas in an optical lattice, in the presence of a strong three-body constraint arising due to three-body loss. Using analytical and numerical techniques, we show that an atomic color superfluid phase is formed in this system and undergoes phase separation between unpaired fermions and superfluid pairs. This phase separation survives well above the critical temperature, giving a clear experimental signature of the three-body constraint.
description: 5 pages, 3 figures. Expanded text
Interpretability of artificial neural network models in artificial Intelligence vs. neuroscience
Creators: name: Kar, Kohitij
name: Kornblith, Simon
name: Fedorenko, Evelina
Publisher: name: arXiv
Year: 2022
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Computationally explicit hypotheses of brain function derived from machine learning (ML)-based models have recently revolutionized neuroscience. Despite the unprecedented ability of these artificial neural networks (ANNs) to capture responses in biological neural networks (brains), and our full access to all internal model components (unlike the brain), ANNs are often referred to as black-boxes with limited interpretability. Interpretability, however, is a multi-faceted construct that is used differently across fields. In particular, interpretability, or explainability, efforts in Artificial Intelligence (AI) focus on understanding how different model components contribute to its output (i.e., decision making). In contrast, the neuroscientific interpretability of ANNs requires explicit alignment between model components and neuroscientific constructs (e.g., different brain areas or phenomena, like recurrence or top-down feedback). Given the widespread calls to improve the interpretability of AI systems, we here highlight these different notions of interpretability and argue that the neuroscientific interpretability of ANNs can be pursued in parallel with, but independently from, the ongoing efforts in AI. Certain ML techniques (e.g., deep dream) can be leveraged in both fields, to ask what stimulus optimally activates the specific model features (feature visualization by optimization), or how different features contribute to the model's output (feature attribution). However, without appropriate brain alignment, certain features will remain uninterpretable to neuroscientists.
description: 3 pages
PROGRAMMING THE ATMEGA2560 MICROCONTROLLER FOR AN AUTOMATIC CONTROL SYSTEM OF WATER TREATMENT PROCESS IN REGIONS WITH HIGH SALT CONTENT
Creators: name: Ezoz Ozodov
Publisher: name: figshare
Year: 2021
Subjects: subject: 70199 Agriculture, Land and Farm Management not elsewhere classified
subject: FOS: Other agricultural sciences

description: The process of water treatment for irrigation in regions with high salinity is one of the important components ofagricultural production. Using the automatic water treatment process control system contributes to the efficiencyof the water treatment design. This article discusses the problem of constructing an algorithm of actions for anautomatic process control system and its implementation in code form, taking into account the design feature ofthe topology of the control board for the ATmega 2560 microcontroller.
Additional file 7 of Socially desirable responding in geriatric outpatients with and without mild cognitive impairment and its association with the assessment of self-reported mental health
Creators: name: Nicolini, Paola
name: Abbate, Carlo
name: Inglese, Silvia
name: Mari, Daniela
name: Rossi, Paolo D.
name: Cesari, Matteo
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 7: Table S9. Multiple linear regression with MCSDS scores as predictors of depressive and anxiety symptoms with cognitive status modelled as a dichotomous variable (NC vs MCI).
Proving the Birch and Swinnerton-Dyer conjecture for specific elliptic curves of analytic rank zero and one
Creators: name: Miller, R. L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We describe an algorithm to prove the Birch and Swinnerton-Dyer conjectural formula for any given elliptic curve defined over the rational numbers of analytic rank zero or one. With computer assistance we have proved the formula for 16714 of the 16725 such curves of conductor less than 5000.
description: 25 pages, 9 tables
Chameleo undetermined
Creators: name: Müller, F
Publisher: name: Zenodo
Year: 1885
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Squamata
Sauria
Chamaeleonidae
Chameleo
Chameleo undetermined

description: * Chameleo sp.
(S.-Algerien) v. H. Miville. [1] (Hiezu Taf. XI.)
Das vorliegende Stück vermag ich in keine der mir bekannten Arten einzureihen. Am nächsten steht es Ch. vulgaris und Ch. (Apola) lateralis und ist vielleicht nur eine local oder individuell aberrante Form des erstem, von welchem mir nur syrische und palästinensische Stücke zur Vergleichnng vorliegen. Von diesen unterscheidet es sich in folgenden Verhältnissen:
l. Der Helm ist viel weniger nach hinten ausgezogen als bei vulgaris. Eine Senkrechte von der Helmspitze nach unten gezogen trifft gerade die Mauleeke. Der Supraorbitalkamm wendet sich zwar in der Höhe des Maulwinkels ebenfalls bogenförmig nach oben gegen die Helmspitze, verﬂaeht aber gleich oberhalb der Krümmung, ohne sie zu erreichen. Er sendet auch nicht. wie bei allen unsern Exemplaren von Ch. vulgaris, einen Kamm schräge nach unten und hinten, und es fehll: so die seitliche (allerdings sehr abgeﬂachte) Pyramide am Hinterhaupt, wie sie hei vulgaris zu erkennen ist. Die Seiten des Helms sind gewölbter als bei vulgaris; es ist eine schwache häutige, nach hinten convexe Haube vorhanden und alle Seiten des Helms, sowie die ganze Schläfengegend sind mit gleichmässig feinen Körnern belegt.
2. Vor dem medianen Helmkiel und durch einen Einsehnitt von diesem getrennt, verläuft zwischen den orbitae ein zweiter (resp. Vorderer) niederer, aus 6 grössern Buckelkörnern bestehender Mediankamm, der etwa in der Höhe der vordern Augenwinkel endet.
3. Blos das vordere Drittel des Rückens trägt den gezähnten einreihigen Kamm des Ch. vulgaris; dahinter tritt an seine Stelle eine Doppelreihe von rundlichen, etwas grössern Körnern, ähnlich, aber nicht gleich wie bei Apoia. lateralis, indem dieselben nicht wie bei letzterm je zu zweien nebeneinander liegen, sondern alternirend angeordnet sind. Auch der Bauchkamm ist nicht eigentlich gezähnt, sondern besteht aus grössern kugligen Schuppen.
Grösse wie die eines erwachsenen Ch. vulgaris. Bekleidung des Rückens und der Seiten gleichmässig feinkörnig, ohne eingestreute grössere Buckel; jedoch sind zahlreiche Körner auf den Seiten glänzend schwarz und erseheinen hie und da in rippenförmiger Anordnung. Farbe im Weingeist wie bei Ch. senegalensis. Von der Achselhöhle zum Seheukeiansatz eine breite gelbe Binde; zwischen dieser und dem Rückenkamm von Schulter zu Schenkelansatz ein ebenso gefärbtes unterbroehenes Längsband. Kämme der Schnauze, der Augbrauen, des Helms, des Banshee und des Rückens bis auf die Mitte des Sehwanzes bellgelb. Kehle und Maulwinkel ockergelb. Augenlider mit 8 radiären dunkeln Streifen.
Das Thier soll angeblich aus Süd-Algerien stammen; es wurde von einem Beduinen erworben.
description: Published as part of Müller, F, 1885, Vierter Nachtrag zum Katalogder herpetologischen Sammlung des Basler Museums, pp. 668-717 in Verhandlungen der Naturforschenden Gesellschaft in Basel. 7 (3) on pages 715-716, DOI: 10.5962/bhl.part.2388, http://zenodo.org/record/15183591
Cohomology rings for quantized enveloping algebras
Creators: name: Drupieski, Christopher M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17B37, 17B56

description: We compute the structure of the cohomology ring for the quantized enveloping algebra (quantum group) $U_q$ associated to a finite-dimensional simple complex Lie algebra $\mathfrak{g}$. We show that the cohomology ring is generated as an exterior algebra by homogeneous elements in the same odd degrees as generate the cohomology ring for the Lie algebra $\mathfrak{g}$. Partial results are also obtained for the cohomology rings of the non-restricted quantum groups obtained from $U_q$ by specializing the parameter $q$ to a non-zero value $ε\in \mathbb{C}$.
description: 14 pages. Reorganized and rewrote Section 3. Additional minor modifications made to Sections 2, 4, 5
Dirac Equation on a Curved 2+1 Dimensional Hypersurface
Creators: name: Olpak, Mehmet Ali
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Other Condensed Matter (cond-mat.other)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Interest on 2 + 1 dimensional electron systems has increased considerably after the realization of novel properties of graphene sheets, in which the behaviour of electrons is effectively described by relativistic equations. Having this fact in mind, the following problem is studied in this work: when a spin 1/2 particle is constrained to move on a curved surface, is it possible to describe this particle without giving reference to the dimensions external to the surface? As a special case of this, a relativistic spin 1/2 particle which is constrained to move on a 2 + 1 dimensional hypersurface of the 3 + 1 dimensional Minkowskian spacetime is considered, and an effective Dirac equation for this particle is derived using the so-called thin layer method. Some of the results are compared with those obtained in a previous work by M. Burgess and B. Jensen.
description: 5 pages. To be published in Modern Physics Letters A
Deep learning-based approximation of model predictive control using mixture networks
Creators: name: Okamoto, Morimasa
Publisher: name: University of British Columbia
Year: 2023

description: Model Predictive Control (MPC) is an optimization-based control scheme exploited in various industrial processes. It determines optimal control inputs that achieve the desired outcome by predicting future behavior based on models while satisfying system constraint sets. The consideration of complex system dynamics and multiple constraints enables the control of nonlinear processes with complicated behavior. Furthermore, because of its extensive applicability, MPC has been applied to the design of supply chain management, especially to scheduling problems that are formulated as mixed-integer linear programming (MILP) problems. However, the online implementation of MPC is challenging, especially for large-scale systems, due to the prohibitive computation cost. In recent years, the approximation method of MPC control laws using deep neural networks (DNNs) has been studied to address this issue. Nevertheless, it struggles to provide accurate approximation when multiple optimal control inputs exist for each system state. In this case, the MPC control laws follow one-to-many mappings, which DNNs cannot correctly approximate as they can only provide one-to-one mappings. Therefore, we propose mixture network-based approximation methods. Mixture networks, with components of probability (density) distributions in the output layer, can approximate the MPC control laws through a combination of conditional probabilities provided by mixing several estimated probability distributions. This approach then generates multiple control inputs with the highest probabilities. Notably, the proposed method can be applied to various problems by selecting an appropriate probability distribution, such as using a Gaussian distribution for nonlinear problems and a Bernoulli distribution for MILP problems. In this thesis, we investigate two case studies: a benchmark problem for nonlinear problems and a scheduling problem in the steel-making process for MILP problems. The simulation results demonstrate that the mixture network-based approximation method outperforms the DNN-based approximation method.
Asymptotic properties of group actions and topological versions of Kesten’s theorem
Creators: name: Chaudkhari, Maksym
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Amenability
Schreier graphs
Confined subgroups
Thompson's group
Random walks
Liouville property
Extensive amenability
Kesten's theorem
SIN groups
Countable Borel equivalence relations
Full groups

description: We study geometric and probabilistic properties of group actions and combinatorial extensions of Kesten’s theorem to the general case of amenable topological groups. In particular, we provide a characterization of confined subgroups of Thompson’s group F in terms of its action on the unit interval. Furthermore, we obtain the results connecting the uniform Liouville property of the group actions on the orbits of a countable Borel equivalence relation R with its amenability, if the acting group is dense in the full group of R. We discuss possible extensions of Kesten’s theorem to the general setting of amenable Hausdorff topological groups and prove a version of this theorem for the groups with SIN property. Moreover, we also describe possible applications of the topological version of Kesten’s theorem to the concentration inequalities for inverted orbits and extensive amenability of group actions.
Synthesis and Spectral Characterizations of Heterobinuclear Complexes of Copper(II) Schiff Base with Alkali Metals Salts
Creators: name: DEO, RABINDRA KUMAR
name: CHANDAN KUMAR
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Chemistry
subject: Physical Sciences and Mathematics
subject: Analytical Chemistry
subject: FOS: Chemical sciences

description: During recent years coordination compounds of biologically active ligands have receive much attention. Current interest in developing the chemistry of binuclear transition and alkali metal complexes draws inspiration from two disparate fields such as chemistry of materials and bioinorganic chemistry. Schiff base metal complexes deserve a proper attention because they show antibacterial and antifungal activities because of their specific structure. In the continuation of our earlier work we were prepared and characterized a number of binuclear alkali metal complexes of Cu(II) derived by the interaction of Schiff base of Cu(II) with alkali metal salt of organic acids. These complexes were characterized on the basis of elemental analysis, IR and UV-Vis spectral data and magnetic measurement. The low values of conductivity measurement show the non-electrolytic nature of the complexes. In the IR spectra of metal complex ligand there was disappearance of very sharp absorption peak, indicate the deprotonation of phenolic proton on complex formation. The uC-O (phenolic)have shifted towards higher energy side on complexation suggest the bonding between the Cu(II) metal chelate and alkali metal which appear by dative bond via oxygen atoms of C-O (phenolic). Electronic absorption bands have indicated the ligand to metal charge transfer transition and also d-d transition. A magnetic measurement study of metals complex as ligand and their binuclear complexes have been showed the square planar geometry with coordination number four.
Additional file 1 of Impact of organizational context on patient outcomes in a proactive primary care program:a longitudinal observational study
Creators: name: Smit, Linda C.
name: De Wit, Niek J.
name: Nieuwenhuizen, Meggie L.
name: Schuurmans, Marieke J.
name: Bleijenberg, Nienke
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Additional file 1. Baseline practice and patient characteristics.
Orientation and polarization control of BaTiO₃ films for applications in Si-integrated photonics
Creators: name: Reynaud, Marc Sinclair
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: BaTiO₃
Si-integrated photonics

description: Silicon integrated photonics has emerged as a potential workaround for some of the bottlenecks seen in integrated electronics. However, silicon has one key flaw, in that it cannot modulate light easily on its own. The modulation of light is a crucial key in the design of photonic devices, and as such must be dealt with. While some methods to modulate light in silicon are possible, including the thermo-optic effect, plasmon dispersion effect, and strain yielding light modulation capabilities are possible, another method for modulation is placing different materials on the silicon for modulation. One such material is BaTiO₃, which has one of the largest Pockel’s responses currently known. The Pockel’s response is the change in the refractive index of a material with respect to an applied electric field. It is a nonlinear effect and requires a noncentro-symmetric crystal. BaTiO₃ is noncentro-symmetric, while silicon is not. Straining silicon produces a small response. With this being said, domain control of BaTiO₃ is of crucial importance for device design for Si integrated photonics. The Pockel’s effect is an asymmetric property tied to the asymmetric refractive indices of a material, meaning that the refractive index of light is different when light impinges on the material in different directions. Therefore, in order to optimize BaTiO₃ on for use in photonic devices, one must be able to control its domain and polarization orientation. This is easier said than done. It is important to understand both the physics and materials science of the standard grown BaTiO₃ on Si and using different methods to control its polarization such as applying large fields or using buffer layers. The work done here does just that, and hopefully provides insight for future graduate students to come.
Toward Dirichlet's unit theorem on arithmetic varieties
Creators: name: Moriwaki, Atsushi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14G40 (Primary) 11G50 (Secondary)

description: In this paper, we would like to propose a fundamental question about a higher dimensional analogue of Dirichlet's unit theorem. We also give a partial answer to the question as an application of the arithmetic Hodge index theorem.
description: 47 pages, rewrite Subsection 1.2 and Subsection 2.1 for the forthcoming paper
Additional file 2 of Impact of organizational context on patient outcomes in a proactive primary care program:a longitudinal observational study
Creators: name: Smit, Linda C.
name: De Wit, Niek J.
name: Nieuwenhuizen, Meggie L.
name: Schuurmans, Marieke J.
name: Bleijenberg, Nienke
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Additional file 2. Number of participants at baseline and follow up (twelve months after).
Business Cycle Synchronization in the EU: A Regional-Sectoral Look through Soft-Clustering and Wavelet Decomposition
Creators: name: Jokubaitis, Saulius
name: Celov, Dmitrij
Publisher: name: arXiv
Year: 2022
Subjects: subject: Econometrics (econ.EM)
subject: Applications (stat.AP)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences
subject: 62H25, 62H30, 65T60, 62P20

description: This paper elaborates on the sectoral-regional view of the business cycle synchronization in the EU -- a necessary condition for the optimal currency area. We argue that complete and tidy clustering of the data improves the decision maker's understanding of the business cycle and, by extension, the quality of economic decisions. We define the business cycles by applying a wavelet approach to drift-adjusted gross value added data spanning over 2000Q1 to 2021Q2. For the application of the synchronization analysis, we propose the novel soft-clustering approach, which adjusts hierarchical clustering in several aspects. First, the method relies on synchronicity dissimilarity measures, noting that, for time series data, the feature space is the set of all points in time. Then, the ``soft'' part of the approach strengthens the synchronization signal by using silhouette measures. Finally, we add a probabilistic sparsity algorithm to drop out the most asynchronous ``noisy'' data improving the silhouette scores of the most and less synchronous groups. The method, hence, splits the sectoral-regional data into three groups: the synchronous group that shapes the EU business cycle; the less synchronous group that may hint at cycle forecasting relevant information; the asynchronous group that may help investors to diversify through-the-cycle risks of the investment portfolios. The results support the core-periphery hypothesis.
description: 37 pages, 6 figures, 12 tables. Keywords: business cycle, core-periphery, European Union, soft-clustering, silhouette, synchronization, wavelets. JEL codes: C13, C38, C52, C53, C55
Black Holes in Born-Infeld Extended New Massive Gravity
Creators: name: Ghodsi, Ahmad
name: Yekta, Davood Mahdavian
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we find different types of black holes for the Born-Infeld extended new massive gravity. Our solutions include (un)charged warped (A)dS black holes for four and six derivative expanded action. We also look at the black holes in unexpanded BI action. In each case we calculate the entropy, angular momentum and mass of the black holes. We also find the central charges for the CFT duals.
description: 23 pages, 5 figures
Additional file 1 of Finding common (research) ground between general practitioners and neuroscientists: the vital role of knowledge circulation in closing the evidence-to-practice gap
Creators: name: Eich-Krohm, Astrid
name: Robra, Bernt-Peter
name: Marx, Yvonne
name: Herrmann, Markus
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1.
Combinatorial Continuous Maximal Flows
Creators: name: Couprie, Camille
name: Grady, Leo
name: Talbot, Hugues
name: Najman, Laurent
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Maximum flow (and minimum cut) algorithms have had a strong impact on computer vision. In particular, graph cuts algorithms provide a mechanism for the discrete optimization of an energy functional which has been used in a variety of applications such as image segmentation, stereo, image stitching and texture synthesis. Algorithms based on the classical formulation of max-flow defined on a graph are known to exhibit metrication artefacts in the solution. Therefore, a recent trend has been to instead employ a spatially continuous maximum flow (or the dual min-cut problem) in these same applications to produce solutions with no metrication errors. However, known fast continuous max-flow algorithms have no stopping criteria or have not been proved to converge. In this work, we revisit the continuous max-flow problem and show that the analogous discrete formulation is different from the classical max-flow problem. We then apply an appropriate combinatorial optimization technique to this combinatorial continuous max-flow CCMF problem to find a null-divergence solution that exhibits no metrication artefacts and may be solved exactly by a fast, efficient algorithm with provable convergence. Finally, by exhibiting the dual problem of our CCMF formulation, we clarify the fact, already proved by Nozawa in the continuous setting, that the max-flow and the total variation problems are not always equivalent.
description: 26 pages
Leading to college : high school principals and English learners' college readiness
Creators: name: Razavi-Maleki, Bita
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: English learners
College readiness
Principals

description: Research on education of English learner (EL) students, through the lens of involvement of high school principals in equity and social justice, is growing but limited. The purpose of my study was to examine how high school leaders (principals, assistant principals and associate principals) prioritize college readiness for ELs and how they make sense of their priorities. These research questions guided my study: (1) What do high school principals know about college readiness policies for all students and particularly for ELs? (2) What are high school principals’ priorities for ELs regarding college readiness? And how do high school principals make sense of these priorities for ELs? This study also offers a review of literature on the role of principals in shaping educational experiences of students as well as a brief history of policies related to education of ELs. The findings to the first research question describe high school principals’ involvement in shaping school culture regarding college readiness, especially college readiness for ELs. High school principals provide broad supervision of college readiness components being implemented on their campuses, but they are not involved with specific implementation plans. They typically have a hands-off approach to creating programs for college readiness for students, both EL and non-EL. The second research question findigs showed that principals’ priority for their EL student population is English language fluency. Principals had various reasons for why English language proficiency is their priority, but they all viewed it as a stepping-stone to access to future opportunities for students. They expressed concerns about prioritizing other goals for ELs when English language fluency is the gatekeeper for other opportunities. The findings of this study highlight the need for additional research on the role of school leadership in policy implementation as well as the need for further investigation of educational policies and allowing flexibility for interpretation in light of specific needs of local contexts of schools. This manuscript concludes with implications and recommendations for theory, policy, practice, and future research.
A semi-analytical approach to perturbations in mutated hilltop inflation
Creators: name: Pal, Barun Kumar
name: Pal, Supratik
name: Basu, B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study cosmological perturbations and observational aspects for mutated hilltop model of inflation. Employing mostly analytical treatment, we evaluate observable parameters during inflation as well as post-inflationary perturbations. This further leads to exploring observational aspects related to Cosmic Microwave Background (CMB) radiation. This semi-analytical treatment reduces complications related to numerical computation to some extent for studying the different phenomena related to CMB angular power spectrum for mutated hilltop inflation.
description: 7 pages, 2 figures. Improved version to appear in IJMPD
Expansion and collapse of spherically symmetric isotropic elastic bodies surrounded by vacuum
Creators: name: Sideris, Thomas C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q74

description: A class of isotropic and scale invariant strain energy functions is given for which the corresponding spherically symmetric elastic motion includes bodies whose diameter becomes infinite with time or collapses to zero in finite time, depending on the sign of the residual pressure. The body is surrounded by vacuum so that the boundary surface forces vanish, while the density remains strictly positive. The body is subject only to internal elastic stress.
description: 37 pages, 1 figure. Final published version allows for more general strain energy function. To appear in Annales Henri Poincar\'e
COVID-19 Detection Using Transfer Learning Approach from Computed Tomography Images
Creators: name: Morani, Kenan
name: Ayana, Esra Kaya
name: Unay, Devrim
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The significance of efficient and accurate diagnosis amidst the unique challenges posed by the COVID-19 pandemic underscores the urgency for innovative approaches. In response to these challenges, we propose a transfer learning-based approach using a recently annotated Computed Tomography (CT) image database. While many approaches propose an intensive data preproseccing and/or complex model architecture, our method focusses on offering an efficient solution with minimal manual engineering. Specifically, we investigate the suitability of a modified Xception model for COVID-19 detection. The method involves adapting a pre-trained Xception model, incorporating both the architecture and pre-trained weights from ImageNet. The output of the model was designed to take the final diagnosis decisions. The training utilized 128 batch sizes and 224x224 input image dimensions, downsized from standard 512x512. No further da processing was performed on the input data. Evaluation is conducted on the 'COV19-CT-DB' CT image dataset, containing labeled COVID-19 and non-COVID-19 cases. Results reveal the method's superiority in accuracy, precision, recall, and macro F1 score on the validation subset, outperforming VGG-16 transfer model and thus offering enhanced precision with fewer parameters. Furthermore, when compared to alternative methods for the COV19-CT-DB dataset, our approach exceeds the baseline approach and other alternatives on the same dataset. Finally, the adaptability of the modified Xception trasnfer learning-based model to the unique features of the COV19-CT-DB dataset showcases its potential as a robust tool for enhanced COVID-19 diagnosis from CT images.
Additional file 1 of The implementation of colorectal cancer screening interventions in low-and middle-income countries: a scoping review
Creators: name: Schliemann, Désirée
name: Ramanathan, Kogila
name: Matovu, Nicholas
name: O’Neill, Ciaran
name: Kee, Frank
name: Su, Tin Tin
name: Donnelly, Michael
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1 Supplementary Table 1. Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) Checklist
Generalization Guarantee of Training Graph Convolutional Networks with Graph Topology Sampling
Creators: name: Li, Hongkang
name: Wang, Meng
name: Liu, Sijia
name: Chen, Pin-Yu
name: Xiong, Jinjun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Graph convolutional networks (GCNs) have recently achieved great empirical success in learning graph-structured data. To address its scalability issue due to the recursive embedding of neighboring features, graph topology sampling has been proposed to reduce the memory and computational cost of training GCNs, and it has achieved comparable test performance to those without topology sampling in many empirical studies. To the best of our knowledge, this paper provides the first theoretical justification of graph topology sampling in training (up to) three-layer GCNs for semi-supervised node classification. We formally characterize some sufficient conditions on graph topology sampling such that GCN training leads to a diminishing generalization error. Moreover, our method tackles the nonconvex interaction of weights across layers, which is under-explored in the existing theoretical analyses of GCNs. This paper characterizes the impact of graph structures and topology sampling on the generalization performance and sample complexity explicitly, and the theoretical findings are also justified through numerical experiments.
No way out? The double-bind in seeking global prosperity alongside mitigated climate change
Creators: name: Garrett, Timothy J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In a prior study, I introduced a simple economic growth model designed to be consistent with general thermodynamic laws. Unlike traditional economic models, civilization is viewed only as a well-mixed global whole with no distinction made between individual nations, economic sectors, labor, or capital investments. At the model core is an observationally supported hypothesis that the global economy's current rate of primary energy consumption is tied through a constant to a very general representation of its historically accumulated wealth. Here, this growth model is coupled to a linear formulation for the evolution of globally well-mixed atmospheric CO2 concentrations. While very simple, the coupled model provides faithful multi-decadal hindcasts of trajectories in gross world product (GWP) and CO2. Extending the model to the future, the model suggests that the well-known IPCC SRES scenarios substantially underestimate how much CO2 levels will rise for a given level of future economic prosperity. For one, global CO2 emission rates cannot be decoupled from wealth through efficiency gains. For another, like a long-term natural disaster, future greenhouse warming can be expected to act as an inflationary drag on the real growth of global wealth. For atmospheric CO2 concentrations to remain below a "dangerous" level of 450 ppmv, model forecasts suggest that there will have to be some combination of an unrealistically rapid rate of energy decarbonization and nearly immediate reductions in global civilization wealth. Effectively, it appears that civilization may be in a double-bind. If civilization does not collapse quickly this century, then CO2 levels will likely end up exceeding 1000 ppmv; but, if CO2 levels rise by this much, then the risk is that civilization will gradually tend towards collapse.