cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Velocity dispersion of dark matter deficient ultra-diffuse galaxies: A case for modified gravity
Creators: name: Bhatia, Esha
name: Chakrabarti, Sayan
name: Chakraborty, Sovan
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The line of sight velocity dispersion of the ultra-diffuse galaxies (UDGs) NGC1052-DF2 and NGC1052-DF4 have been reasonably explained only with the baryonic matter, without requiring any dark matter contribution. The comparable ratio between the baryonic and halo mass also ascertain the above claim for the two dark matter deficit galaxies. This paves the way for analyzing alternative gravity theories such as the $f(R)$ gravity and the Renormalization Group correction to General Relativity (RGGR). The analysis of the line of sight velocity dispersion shows that the choice of $f(R)$ gravity models such as Taylor expanded $f(R)$ about $R=0$ or a simple power law model of choice $R^n$ is consistent with the observational data. Similar statistical analysis is done for the RGGR and is also found to be a viable explanation for the observed velocity dispersion. We perform a global fit of the model parameters together with both the UDGs. The coupling parameters of the theories are considered as the global ones, and local variables such as the scale parameters are considered to be dependent on the individual galaxy.
description: 10 pages, 8 figures
Superheavy Elements and Ultradense Matter
Creators: name: LaForge, Evan
name: Price, Will
name: Rafelski, Johann
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In order to characterize the mass density of superheavy elements, we solve numerically the relativistic Thomas-Fermi model of an atom. To obtain a range of mass densities for superheavy matter, this model is supplemented with an estimation of the number of electrons shared between individual atoms. Based on our computation, we expect that elements in the island of nuclear stability around $Z = 164$ will populate a mass density range of $36.0 - 68.4$ g/cm$^3$. We then extend our method to the study of macroscopic alpha particle nuclear matter condensate drops.
description: 17 pages, 6 figures, published version
PERFORMANCE ANALYSIS OF SOLAR WATER HEATER SYSTEM WITH HEAT PIPE EVACUATED TUBE COLLECTOR ON MOHA SOFT DRINK INDUSTRIES IN ETHIOPIA
Creators: name: MESAY SIYOUM
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2020
Subjects: Evacuated tube collector, Solar water heater Tilt angle solar system.

description: Files are currently under embargo but will be publicly accessible after June 04, 2021
Kick it over - No. 19
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Anarchism--Periodicals
valueUri: http://id.worldcat.org/fast/808394
subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387
subject: Social movements
valueUri: http://id.worldcat.org/fast/1122657
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401

description: A social anarchist and anti-authoritarian quarterly publication. In this issue: Radical Canadian traditions: Woodcock, Native elder interview, Japanese feminism reviewed, African culture of resistance, Porn: fighting the lies, Lorca: poet and rebel, Faerie power, The Planetariat.
Semi-Empirical Haken-Strobl Model for Molecular Spin Qubits
Creators: name: Aruachan, Katy
name: Colón, Yamil J.
name: Aravena, Daniel
name: Herrera, Felipe
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Understanding the physical processes that determine the relaxation $T_{1}$ and dephasing $T_2$ times of molecular spin qubits is critical for envisioned applications in quantum metrology and information processing. Recent spin-echo $T_1$ measurements of solid-state molecular spin qubits have stimulated the development of quantum mechanical models for predicting intrinsic spin qubit timescales using first-principles electronic structure methods. We develop an alternative semi-empirical approach to construct Redfield quantum master equations for molecular spin qubits using a stochastic Haken-Strobl model for a central spin with a fluctuating gyromagnetic tensor due to spin-lattice interaction and a fluctuating local magnetic field due to interactions with other lattice spins. Using a vanadium-based spin qubit as a case study, we compute qubit population and decoherence timescales as a function of temperature and magnetic field using a bath spectral density parametrized with a small number of $T_{1}$ measurements. The theory quantitatively agrees with experimental data over a range of conditions beyond those used to parametrize the model, demonstrating the generalization potential of the method. The ability of the model to describe the temperature dependence of the ratio $T_2/T_1$ is discussed and possible applications for designing novel molecule-based quantum magnetometers are suggested.
description: 7 pages, 5 figures
Mid-Infrared Colors of Dwarf Galaxies: Young Starbursts Mimicking Active Galactic Nuclei
Creators: name: Hainline, Kevin N.
name: Reines, Amy E.
name: Greene, Jenny E.
name: Stern, Daniel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Searching for active galactic nuclei (AGN) in dwarf galaxies is important for our understanding of the seed black holes that formed in the early Universe. Here, we test infrared selection methods for AGN activity at low galaxy masses. Our parent sample consists of ~18,000 nearby dwarf galaxies (M*< 3 x 10^9 Msun, $z<0.055$) in the Sloan Digital Sky Survey with significant detections in the first three bands of the AllWISE data release from the Wide-field Infrared Survey Explorer (WISE). First, we demonstrate that the majority of optically-selected AGNs in dwarf galaxies are not selected as AGNs using WISE infrared color diagnostics and that the infrared emission is dominated by the host galaxies. We then investigate the infrared properties of optically-selected star-forming dwarf galaxies, finding that the galaxies with the reddest infrared colors are the most compact, with blue optical colors, young stellar ages and large specific star formation rates. These results indicate that great care must be taken when selecting AGNs in dwarf galaxies using infrared colors, as star-forming dwarf galaxies are capable of heating dust in such a way that mimics the infrared colors of more luminous AGNs. In particular, a simple $\mathrm{W1}-\mathrm{W2}$ color cut alone should not be used to select AGNs in dwarf galaxies. With these complications in mind, we present a sample of 41 dwarf galaxies worthy of follow-up observations that fall in WISE infrared color space typically occupied by more luminous AGNs.
description: 17 pages, 12 figures, accepted by the Astrophysical Journal
Kick it over - No. 11
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Social movements
valueUri: http://id.worldcat.org/fast/1122657
subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387
subject: Anarchism--Periodicals
valueUri: http://id.worldcat.org/fast/808394

description: A social anarchist and anti-authoritarian quarterly publication. In this issue: "3rd anniversary 'Share the earth' issue" In this issue: Animal liberation, Anarcha-feminism, The politics of ego, Shock survivors tell all, Prison abolition, Women in Russia, Witchcraft.
Neutrino oscillation bounds on quantum decoherence
Creators: name: De Romeri, Valentina
name: Giunti, Carlo
name: Stuttard, Thomas
name: Ternes, Christoph A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We consider quantum-decoherence effects in neutrino oscillation data. Working in the open quantum system framework we adopt a phenomenological approach that allows to parameterize the energy dependence of the decoherence effects. We consider several phenomenological models. We analyze data from the reactor experiments RENO, Daya Bay and KamLAND and from the accelerator experiments NOvA, MINOS/MINOS+ and T2K. We obtain updated constraints on the decoherence parameters quantifying the strength of damping effects, which can be as low as $Γ_{ij} \lesssim 8 \times 10^{-27}$ GeV at 90% confidence level in some cases. We also present sensitivities for the future facilities DUNE and JUNO.
description: v2: matches published version, v1: 20 pages, 9 figures, 3 tables
Copper alloys deterioration due to anthropogenic action
Creators: name: Duran, A.
name: Pérez-Rodríguez, J. L.
name: Herrera, L. K.
name: Jiménez-de-Haro, M. C.
name: Robador, M. D.
name: Justo, A.
name: Blanes, J. M.
name: Pérez-Ferrer, J. C.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Results are presented from several samples taken from leaves of the Pardon Portico of Mosque-Cathedral of Cordoba, where an alteration on their surface was detected. Metal samples analyzed using X-ray microanalysis and powder x-ray diffraction were predominantly constituted by copper with some amounts of zinc attributed to brass, whereas other samples were also constituted by copper, tin and lead attributed to bronze. Surface samples were analyzed using the same techniques. In addition Fourier transform infrared spectroscopy was also used.The main compound identified in all the surface of the leaves is copper chloride hydroxide (atacamite). Lead chlorides have also been found. These data show that the sudden alteration that appears may be attributed to the use of some cleaning product containing chloride. Other compounds detected in the surface were gypsum, quartz and oxalates coming from environmental contamination.
Nutritional value of sugar beet leaves
Creators: name: Nikola, Maravić
name: Jelena, Šurlan
name: Biljana, Pajin
name: Dragana, Šoronja-Simović
name: Ivana, Nikolić
name: Miljana, Đorđević
name: Jovana, Petrović
name: Zita, Šereš
Publisher: name: Zenodo
Year: 2022
Subjects: sugar beet leaves
protein
nutritional value

description: Sugar beet leaves represent a by-product of sugar industry and are usually used as animal feed. However, with growing popularity of plant based meals, green biomass has gained a lot of attention as a plant protein source. Green parts of sugar beet (leaves) represent efficient sources for protein extraction, which could latter be used in food products. Valorization of sugar beet leaves would decrease amount of waste products from sugar industry, positively affecting the environment. In order to effectively find use of sugar industry by-product, nutritional value was determined. Results have shown that sugar beet leaves could be valorized as protein sources, with protein content 4.75%. Fat content of raw sugar beet leaves was 0.22%. Sugar beet leaves have high amounts of dietary fiber (4.79%), out of which 31.52% are water soluble fiber. Total amount of sugars was 4.38%, while the sucrose content was 2.39%. Amount of reduced sugars in the sample was 1.67%. Proteins from sugar beet leaves could be extracted and separated into two fractions (white and green fraction). White protein fraction consist of essential amino acids that benefit human health and can be used in human nutrition. Green fraction has great amount of impurities and, therefore, is used as animal feed. However, further research is still required to completely understand characteristics and content of sugar beet leaves and proteins.
Cell count - Vol. 01, No. 06
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Prisoners
valueUri: http://id.worldcat.org/fast/1077103
subject: AIDS (Disease)
valueUri: http://id.worldcat.org/fast/793808
subject: AIDS (Disease)--Prevention
valueUri: http://id.worldcat.org/fast/793908
subject: Prison periodicals
valueUri: http://id.worldcat.org/fast/1077063
subject: Prisoners--Social conditions
valueUri: http://id.worldcat.org/fast/1077200
subject: Prisons
valueUri: http://id.worldcat.org/fast/1077326
subject: Prisoners--Health and hygiene
valueUri: http://id.worldcat.org/fast/1077147
subject: HIV-positive persons--Civil rights
valueUri: http://id.worldcat.org/fast/949915
subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Prisoners--Legal status, laws, etc.
valueUri: http://id.worldcat.org/fast/1077155
subject: Prisoners' writings
valueUri: http://id.worldcat.org/fast/1077268
subject: Anarchism--Periodicals
valueUri: http://id.worldcat.org/fast/808394
subject: HIV-positive persons
valueUri: http://id.worldcat.org/fast/949912

description: In this issue: Warrior -- Beware -- Drug policy: acess to sterile needles for young people under the age of 14 -- Woman HIV -- What is HIV/AIDS? -- AIDS grows among natives -- Pelvic inflammatory disease (PID) -- Prison & AIDS activists speak before parliament -- Protease inhibitors -- Resources.
description: A newsletter by and for prisoners and ex-prisoners and others concerned with the crisis of HIV/AIDS in prisons. Published by PASAN (Prisoners with HIV/AIDS Support Action Network), Toronto, ON.
On-Surface Synthesis and Characterization of a High-Spin Aza-[5]-Triangulene
Creators: name: Vilas-Varela, Manuel
name: Romero-Lara, Francisco
name: Vegliante, Alessio
name: Calupitan, Jan Patrick
name: Martínez, Adrián
name: Meyer, Lorenz
name: Uriarte-Amiano, Unai
name: Friedrich, Niklas
name: Wang, Dongfei
name: Koval, Natalia E.
name: Sandoval-Salinas, María E.
name: Casanova, David
name: Corso, Martina
name: Artacho, Emilio
name: Peña, Diego
name: Pascual, Jose Ignacio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Triangulenes are open-shell triangular graphene flakes with total spin increasing with their size. In the last years, on-surface-synthesis strategies have permitted fabricating and engineering triangulenes of various sizes and structures with atomic precision. However, direct proof of the increasing total spin with their size remains elusive. In this work, we report the combined in-solution and on-surface synthesis of a large nitrogen-doped triangulene (aza-[5]-triangulene) and the detection of its high spin ground state on a Au(111) surface. Bond-resolved scanning tunneling microscopy images uncovered radical states distributed along the zigzag edges, which were detected as weak zero-bias resonances in scanning tunneling spectra. These spectral features reveal the partial Kondo screening of a high spin state. Through a combination of several simulation tools, we find that the observed distribution of radical states is explained by a quintet ground state (S = 2), instead of the expected quartet state (S = 3/2), confirming the positively charged state of the molecule on the surface. We further provide a qualitative description of the change of (anti)aromaticity introduced by N-substitution, and its role in the charge stabilization on a surface, resulting in a S = 2 aza-[5]-triangulene on Au(111).
description: 8 pages with 4 figures
Integral group rings with all central units trivial
Creators: name: Bakshi, Gurmeet K.
name: Maheshwary, Sugandha
name: Passi, Inder Bir S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16U60, 16K20, 16S34, 20C05, 20F14

description: The object of study in this paper is the finite groups whose integral group rings have only trivial central units. Prime-power groups and metacyclic groups with this property are characterized. Metacyclic groups are classified according to the central height of the unit groups of their integral group rings.
description: 15 pages
Deep Search for Glycine Conformers in Barnard 5
Creators: name: Carl, Tadeus
name: Wirström, Eva
name: Bergman, Per
name: Charnley, Steven
name: Chuang, Yo-Ling
name: Kuan, Yi-Jehng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: One of the most fundamental hypotheses in astrochemistry and astrobiology states that crucial biotic molecules like glycine (NH$_2$CH$_2$COOH) found in meteorites and comets are inherited from early phases of star formation. Most observational searches for glycine in the interstellar medium have focused on warm, high-mass molecular cloud sources. However, recent studies suggest that it might be appropriate to shift the observational focus to cold, low-mass sources. We aim to detect glycine towards the so-called methanol hotspot in the Barnard 5 dark cloud. The hotspot is a cold source ($T_\mathrm{gas}\approx 7.5$ K) with yet high abundances of complex organic molecules (COMs) and water in the gas phase. We carried out deep, pointed observations with the Onsala 20m telescope, targeting several transitions of glycine conformers I and II (Gly-I and Gly-II) in the frequency range $70.2$-$77.9$ GHz. No glycine lines are detected towards the targeted position, but we use a line stacking procedure to derive sensitive abundance upper limits w.r.t. H$_2$ for Gly-I and Gly-II, i.e. $\leq(2$-$5)\times10^{-10}$ and $\leq(0.7$-$3)\times10^{-11}$, respectively. The obtained Gly-II upper limits are the most stringent for a cold source, while the Gly-I upper limits are mostly on the same order as previously measured limits. The measured abundances w.r.t. H$_2$ of other COMs at the B5 methanol hotspot range from $2\times10^{-10}$ (acetaldehyde) to $2\times10^{-8}$ (methanol). Hence, based on a total glycine upper limit of $(2$-$5)\times10^{-10}$, we cannot rule out that glycine is present but undetected.
description: 12 pages, 7 figures
Fractional charge and emergent mass hierarchy in diagonal two-leg t-J cylinders
Creators: name: Jiang, Yi-Fan
name: Jiang, Hong-Chen
name: Yao, Hong
name: Kivelson, Steven A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We define a new class of "diagonal" t-J ladders rotated by $π$/4 relative to the canonical lattice directions of the square lattice, and study it using density matrix renormalization group (DMRG). Here, we focus on the two-leg cylinder with a doped hole concentration near x = 1/4. At exactly x = 1/4, the system forms a period 4 charge density wave (CDW) and exhibits spin-charge separation. Slightly away from 1/4 doping we observe several topologically distinct types of solitons with well defined fractionalized quantum numbers. Remarkably, given the absence of any obvious small parameter, the effective masses of the emergent solitons differ by several orders of magnitude.
description: 4.4 pages + supplemental materials, 5 figures
Volume conservation during finite plastic deformation
Creators: name: Wang, He-Ling
name: Jiang, Dong-Jie
name: Zhang, Li-Yuan
name: Liu, Bin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences
subject: 74C15

description: An elastoplastic theory is not volume conserved if it improperly sets an arbitrary plastic strain rate tensor to be deviatoric. This paper discusses how to rigorously realize volume conservation in finite strain regime, especially when the unloading stress free configuration is not adopted or unique in the elastoplastic theories. An accurate condition of volume conservation is clarified and used in this paper that the density of a volume element after the applied loads are completely removed should be identical to that of the initial stress free states. For the elastoplastic theories that adopt the unloading stress free configuration (i.e. the intermediate configuration), the accurate condition of volume conservation is satisfied only if specific definitions of the plastic strain rate are used among many other different definitions. For the elastoplastic theories that do not adopt the unloading stress free configuration, it is even more difficult to realize volume conservation as the information of the stress free state lacks. To find a universal approach of realizing volume conservation for elastoplastic theories whether or not adopt the unloading stress free configuration, we propose a single assumption that the density of material only depends on the trace of the Cauchy stress, and interestingly find that the zero trace of the plastic stress rate is equivalent to the accurate condition of volume conservation. Two strategies are further proposed to satisfy the accurate condition of volume conservation: directly and slightly revising the tangential stiffness tensor or using a properly chosen stress/strain measure and elastic compliance tensor. They are implemented into existing elastoplastic theories, and the volume conservation is demonstrated by both theoretical proof and numerical examples.
description: 37 pages, 13 figures and 2 tables
Hybrid Stars Built with Density Dependent Models
Creators: name: Issifu, A.
name: da Silva, F. M.
name: Menezes, D. P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using a density dependent quark model and a relativistic model within the mean-field approximation for hadrons with density dependent meson-baryon couplings, we construct, for the first time, models that describe hybrid neutron stars consisting of nucleons and exotic baryons (hyperons and $Δ$-resonances). We do the study using a Maxwell construction. The quark-hadron phase transition in the stellar matter is determined through; the structure, composition, and properties of the hybrid neutron star matter. The macroscopic properties of the star are determined, and the results for these particular models are found to be compatible with recent observational astrophysical data.
description: 9 pages, 7 figures
Post-selection free spatial Bell state generation
Creators: name: Kovlakov, E. V.
name: Bobrov, I. B.
name: Straupe, S. S.
name: Kulik, S. P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Spatial states of single photons and spatially entangled photon pairs are becoming an important resource in quantum communication. This additional degree of freedom provides an almost unlimited information capacity, making the development of high-quality sources of spatial entanglement a well-motivated research direction. We report an experimental method for generation of photon pairs in a maximally entangled spatial state. In contrast to existing techniques the method does not require post-selection and allows one to use the full photon flux from the nonlinear crystal, providing a tool for creating high-brightness sources of pure spatially entangled photons. Such sources are a prerequisite for emerging applications in free-space quantum communication.
description: 7 pages, 6 figures
$β$-decay half-lives as an indicator of shape-phase transition in neutron-rich Zr isotopes with particle-vibration coupling effect
Creators: name: Yoshida, Kenichi
name: Niu, Yifei
name: Minato, Futoshi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: [Background] $β$-decay half-life is sensitive to the shell structure near the Fermi levels. Nuclear deformation thus impacts the $β$-decay properties. [Purpose] A first-order shape-phase transition in neutron-rich Zr isotopes is predicted by some models. We investigate the $β$-decay half-lives of neutron-rich nuclei around $^{110}$Zr, where the shape-phase transition is predicted to occur, to see if the $β$-decay half-life can be an indicator of the shape changes. [Method] The proton-neutron quasiparticle random-phase approximation (RPA) is adopted to calculate the Gamow-Teller transitions. In addition, we apply the quasiparticle phonon-vibrational coupling (PVC) to consider the phonon couplings. [Results] The spherical and oblate configurations give similar half-lives but shorter ones than the prolate configuration at the RPA level. The PVC effect further reduces the half-lives in general, but the effect is smaller for the deformed configuration than that for the spherical one. As a result, it makes the shape change from the oblate configuration to the spherical configuration visible. Therefore, a sudden shortening of $β$-decay half-lives is always found at the nuclear shape changes. [Conclusions] $β$-decay half-life is an indicator of the shape-phase transition. The shape mixing and the roles of the triaxial deformation are subject to study in the future.
description: 7 pages, 4 figures
ASTErIsM - Application of topometric clustering algorithms in automatic galaxy detection and classification
Creators: name: Tramacere, A.
name: Paraficz, D.
name: Dubath, P.
name: Kneib, J. -P.
name: Courbin, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a study on galaxy detection and shape classification using topometric clustering algorithms. We first use the DBSCAN algorithm to extract, from CCD frames, groups of adjacent pixels with significant fluxes and we then apply the DENCLUE algorithm to separate the contributions of overlapping sources. The DENCLUE separation is based on the localization of pattern of local maxima, through an iterative algorithm which associates each pixel to the closest local maximum. Our main classification goal is to take apart elliptical from spiral galaxies. We introduce new sets of features derived from the computation of geometrical invariant moments of the pixel group shape and from the statistics of the spatial distribution of the DENCLUE local maxima patterns. Ellipticals are characterized by a single group of local maxima, related to the galaxy core, while spiral galaxies have additional ones related to segments of spiral arms. We use two different supervised ensemble classification algorithms, Random Forest, and Gradient Boosting. Using a sample of ~ 24000 galaxies taken from the Galaxy Zoo 2 main sample with spectroscopic redshifts, and we test our classification against the Galaxy Zoo 2 catalog. We find that features extracted from our pipeline give on average an accuracy of ~ 93%, when testing on a test set with a size of 20% of our full data set, with features deriving from the angular distribution of density attractor ranking at the top of the discrimination power.
description: 20 pages, 13 Figures, 8 Tables, Accepted for publication in the Monthly Notices of the Royal Astronomical Society
Indigenous Ecuadorian Resistance and Mobilization: Co-optation and Alliances of the Indigenous Movement
Creators: name: Tsongas, Galen
Publisher: name: University of Chicago
Year: 2022
Subjects: subject: Indigenous
subject: Ecuador
subject: CONAIE
subject: Rafael Correa
subject: Social Movements
subject: Indigenous Politics

description: What explains the fall and rise of Ecuadorian Indigenous mobilization from 2006-2021, and how Indigenous peoples, both leaders and non-leaders, understand the dynamics of their movement? This paper specifically examines protests as modalities of resistance and power to make broader claims regarding the movement as a whole. While there are many modes of resistance, protests are a phenomenon that diverse communities and groups within the movement participate in and have frameworks on. I argue that the decrease in protest frequency is rooted, in part, in two distinct factors that Indigenous leaders propose: 1). Political and ideological co-optation; and 2). Political repression. The increase in the number of protests and participants is rooted in cross-sectoral alliances against widely unpopular neoliberal reforms that enabled the movement’s resurgence. While many scholars have emphasized the role of highland movements and elites in the Indigenous movement in Ecuador, I seek to examine the perspectives of individuals outside of the Andean leadership, specifically in the Amazon. Understanding protest dynamics in Ecuador requires an analysis of non-Andean, non-leadership beliefs on why individuals protest or not and how they conceptualize the movement.
Exploring the Angular Momentum -- Atomic Gas Content Connection with EAGLE and IllustrisTNG
Creators: name: Hardwick, Jennifer A.
name: Cortese, Luca
name: Obreschkow, Danail
name: Lagos, Claudia
name: Stevens, Adam R. H.
name: Catinella, Barbara
name: Garratt-Smithson, Lilian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use the EAGLE (Evolution and Assembly of GaLaxies and their Environments) and IllustrisTNG (The Next Generation) cosmological simulations to investigate the properties of the baryonic specific angular momentum (j), baryonic mass (M) and atomic gas fraction ($f_{\rm{atm}}$) plane for nearby galaxies. We find EAGLE and TNG to be in excellent agreement with each other. These simulations are also consistent with the results obtained with xGASS (eXtended GALEX Arecibo SDSS Survey) for gas fractions greater than 0.01. This implies that the disagreements previously identified between xGASS and predictions from simple analytical disc stability arguments also holds true for EAGLE and TNG. For lower gas fraction (the regime currently unconstrained by observations), both simulations deviate from the plane but still maintain good agreement with each other. Despite the challenges posed by resolution limits at low gas fractions, our findings suggest a potential disconnect between angular momentum and gas fraction in the gas-poor regime, implying that not all gas-poor galaxies have low specific angular momentum.
description: 12 pages, 10 figures. Accepted for publication in MNRAS
Towards reducing tension-compression yield and cyclic asymmetry in pure magnesium and magnesium-aluminum alloy with cerium addition
Creators: name: Sisodia, Shubham
name: S, Jananandhan
name: Pakki, Vamsi Krishna
name: Konkati, Chethan
name: Chauhan, Ankur
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this study, we report the effect of cerium (Ce) addition on the tension-compression yield and cyclic asymmetry in commercially pure magnesium (Cp-Mg) and Mg-Al alloy at room temperature (RT). The investigated materials Cp-Mg, Mg-0.5Ce, and Mg-3Al-0.5Ce were extruded at 400°C, followed by annealing at the same temperature for one hour. Incorporating 0.5wt.% Ce in pure Mg results in the weakening of its basal texture, uniform distribution of Mg12Ce precipitates, and grain size refinement. Consequently, the tensile yield strength and ductility of pure Mg increased, and tension-compression yield asymmetry was eliminated. However, the presence of 3wt.% Al in Mg suppresses the beneficial effects of Ce addition. The formation of complex precipitates, such as Mg-Al-Ce and Al11Ce3, limits the weakening of the basal texture, reduction in grain size, improvement in ductility, and elimination of tension-compression yield asymmetry observed in Mg-0.5Ce. Nevertheless, Al contributes to the solid solution strengthening in Mg and possibly lowers the critical stress required for twinning in Mg, resulting in the highest tensile strength of Mg-3Al-0.5Ce. Finally, the addition of 0.5wt.% Ce enhances the cyclic strength, stabilizes cyclic stress response, reduces inelastic strain, and minimizes cyclic asymmetry in both pure Mg and Mg-Al alloy while maintaining a comparable fatigue life. Overall, Ce addition positively impacts the microstructure and mechanical behavior of pure Mg and its investigated alloy. The reasons for these improvements are discussed in detail.
Non-additive electronic polarizabilities of ionic liquids: Charge delocalization effects
Creators: name: Rodriguez-Fernandez, C. D.
name: Lago, E. Lopez
name: Schroder, C.
name: Varela, L. M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Electronic charge delocalization on the molecular backbones of ionic liquid-forming ions substantially impacts their molecular polarizabilities. Density functional theory calculations of polarizabilities and volumes of many cations and anions are reported and applied to yield refractive indices of 1216 ionic liquids. A novel expression for the precise estimation of the molecular volumes of the ionic liquids from simulation data is also introduced, adding quadratic corrections to the usual sum of atomic volumes. Our significant findings include i) that the usual assumption of uniform, additive atomic polarizabilities is challenged when highly mobile electrons in conjugated systems are present, and ii) that cations with conjugated large carbon chains can be used together with anions for the design of ionic liquids with very high refractive indices. A novel relation for the polarizability volume is reported together with a refractive index map made up of the studied ionic liquids
description: 12 pages, 7 figures, 6 tables, Supplementary data associated with this article can be found, in the online version, at https://doi.org/10.1016/j.molliq.2021. 117099
Chirality modifies the interaction between knots
Creators: name: Najafi, Saeed
name: Tubiana, Luca
name: Podgornik, Rudolf
name: Potestio, Raffaello
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In this study we consider an idealization of a typical optical tweezers experiment involving a semiflexible double-knotted polymer, with steric hindrance and persistence length matching those of dsDNA in high salt concentration, under strong stretching. Using exhaustive Molecular Dynamics simulations we show that not only does a double-knotted dsDNA filament under tension possess a free energy minimum when the two knots are intertwined, but also that the depth of this minimum depends on the relative chirality of the two knots. We rationalize this dependence of the effective interaction on the chirality in terms of a competition between chain entropy and bending energy.
Two New Theories for the Current Charge Relativity and the Electric Origin of the Magnetic Force Between Two Filamentary Current Elements
Creators: name: Shadid, Waseem G. T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: This paper presents two new theories and a new current representation to explain the magnetic force between two filamentary current elements as a result of electric force interactions between current charges. The first theory states that a current has an electric charge relative to its moving observer. The second theory states that the magnetic force is an electric force in origin. The new current representation characterizes a current as equal amounts of positive and negative point charges moving in opposite directions at the speed of light. Previous work regarded electricity and magnetism as different aspects of the same subject. One effort was made by Johnson to unify the origin of electricity and magnetism, but this effort yielded a formula that is unequal to the well-known magnetic force law. The explanation provided for the magnetic force depends on three factors: 1) representing the electric current as charges moving at the speed of light, 2) considering the relative velocity between moving charges, and 3) analyzing the electric field spreading in the space due to the movement of charges inside current elements. The electric origin of the magnetic force is proved by deriving the magnetic force law and Biot-Savart law using the electric force law. This paper is helpful for unifying the concepts of magnetism and electricity.
description: 24 pages, 27 figures. Published in IEEE ACCESS ( http://ieeexplore.ieee.org/document/7546893/ ). These theories explain the magnetic force between two filamentary current elements as a result of electric force interactions between current charges (the electric origin of the magnetic force). This explanation is proved by deriving magnetic field / Biot-Savart law using the basis of electric forces
Maximally Divergent Intervals for Anomaly Detection
Creators: name: Rodner, Erik
name: Barz, Björn
name: Guanche, Yanira
name: Flach, Milan
name: Mahecha, Miguel
name: Bodesheim, Paul
name: Reichstein, Markus
name: Denzler, Joachim
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We present new methods for batch anomaly detection in multivariate time series. Our methods are based on maximizing the Kullback-Leibler divergence between the data distribution within and outside an interval of the time series. An empirical analysis shows the benefits of our algorithms compared to methods that treat each time step independently from each other without optimizing with respect to all possible intervals.
description: ICML Workshop on Anomaly Detection
Kick it over - No. 34
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387
subject: Anarchism--Periodicals
valueUri: http://id.worldcat.org/fast/808394
subject: Social movements
valueUri: http://id.worldcat.org/fast/1122657
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401

description: A social anarchist and anti-authoritarian quarterly publication. In this issue: "Food and land" In this issue: Radical agriculture, Permaculture, Anarcho-spatialism, Food not bombs.
Applying QNLP to sentiment analysis in finance
Creators: name: Stein, Jonas
name: Christ, Ivo
name: Kraus, Nicolas
name: Mansky, Maximilian Balthasar
name: Müller, Robert
name: Linnhoff-Popien, Claudia
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: As an application domain where the slightest qualitative improvements can yield immense value, finance is a promising candidate for early quantum advantage. Focusing on the rapidly advancing field of Quantum Natural Language Processing (QNLP), we explore the practical applicability of the two central approaches DisCoCat and Quantum-Enhanced Long Short-Term Memory (QLSTM) to the problem of sentiment analysis in finance. Utilizing a novel ChatGPT-based data generation approach, we conduct a case study with more than 1000 realistic sentences and find that QLSTMs can be trained substantially faster than DisCoCat while also achieving close to classical results for their available software implementations.
Holographic bound in covariant loop quantum gravity
Creators: name: Tamaki, Takashi
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate puncture statistics based on the covariant area spectrum in loop quantum gravity. First, we consider Maxwell-Boltzmann statistics with a Gibbs factor for punctures. We establish formulae which relate physical quantities such as horizon area to the parameter characterizing holographic degrees of freedom. We also perform numerical calculations and obtain consistency with these formulae. These results tell us that the holographic bound is satisfied in the large area limit and correction term of the entropy-area law can be proportional to the logarithm of the horizon area. Second, we also consider Bose-Einstein statistics and show that the above formulae are also useful in this case. By applying the formulae, we can understand intrinsic features of Bose-Einstein condensate which corresponds to the case when the horizon area almost consists of punctures in the ground state. When this phenomena occurs, the area is approximately constant against the parameter characterizing the temperature. When this phenomena is broken, the area shows rapid increase which suggests the phase transition from quantum to classical area.
description: 8 pages, 5 figures, published in PRD
title: Ligand Exchange Triggered Photosensitizers – Bodipy‐Tagged NHC‐Metal Complexes for Conversion of ³O₂ to ¹O₂
Creators: name: Popov, Stepan
name: Plenio, Herbert
Publisher: name: Wiley-VCH
Year: 2022

description: A new imidazolium salt 3⋅HI with 8‐Bodipy as one N‐aryl substituent was synthesized from 8‐chloro‐Bodipy and imidazole followed by alkylation with iPrI. NHC‐metal complexes [CuCl(3)], [AuCl(3)], [Pd(allyl)Cl(3)] and [MCl(cod)(3)] and [MCl(CO)₂(3)] (M=Rh, Ir) were synthesized and the X‐ray crystal structure of [IrCl(CO)₂(3)] determined. The donation of NHC 3 was determined via IR (ν(CO) and cyclic voltammetry (Ir(I/II) redox potential). The photosensitizing properties of the complexes for the generation of ¹O₂ were quantified observing singlet oxygen quantum yield of up to Φs.o.=0.63. [IrCl(cod)(3)] displays poor Φs.o.=0.09, but, following a simple ligand exchange reaction of cod by two CO [IrCl(CO)₂(3)], a pronounced increase to Φs.o.=0.63 is observed.
Ekomedia bulletin - No. 14
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Social movements
valueUri: http://id.worldcat.org/fast/1122657
subject: Dissenters
valueUri: http://id.worldcat.org/fast/895401
subject: Anarchism
valueUri: http://id.worldcat.org/fast/808387
subject: Anarchism--Periodicals
valueUri: http://id.worldcat.org/fast/808394
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401

description: Photocopy of a typewritten anarchist publication from Denmark. In this issue: Solidarity in Copenhagen -- Animal experiments -- Activists in Arhus raid Townhall -- Film-action Copenhagen -- NATO visit in Denmark -- The Greens in Denmark -- Growing pot-marijuana-cannabis-hemp.
Frustrated with MPI+Threads? Try MPIxThreads!
Creators: name: Zhou, Hui
name: Raffenetti, Ken
name: Zhang, Junchao
name: Guo, Yanfei
name: Thakur, Rajeev
Publisher: name: arXiv
Year: 2024
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: MPI+Threads, embodied by the MPI/OpenMP hybrid programming model, is a parallel programming paradigm where threads are used for on-node shared-memory parallelization and MPI is used for multi-node distributed-memory parallelization. OpenMP provides an incremental approach to parallelize code, while MPI, with its isolated address space and explicit messaging API, affords straightforward paths to obtain good parallel performance. However, MPI+Threads is not an ideal solution. Since MPI is unaware of the thread context, it cannot be used for interthread communication. This results in duplicated efforts to create separate and sometimes nested solutions for similar parallel tasks. In addition, because the MPI library is required to obey message-ordering semantics, mixing threads and MPI via MPI_THREAD_MULTIPLE can easily result in miserable performance due to accidental serializations.
 We propose a new MPI extension, MPIX Thread Communicator (threadcomm), that allows threads to be assigned distinct MPI ranks within thread parallel regions. The threadcomm extension combines both MPI processes and OpenMP threads to form a unified parallel environment. We show that this MPIxThreads (MPI Multiply Threads) paradigm allows OpenMP and MPI to work together in a complementary way to achieve both cleaner codes and better performance.
Forgetting 1-Limited Automata
Creators: name: Pighizzini, Giovanni
name: Prigioniero, Luca
Publisher: name: arXiv
Year: 2023
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences

description: We introduce and investigate forgetting 1-limited automata, which are single-tape Turing machines that, when visiting a cell for the first time, replace the input symbol in it by a fixed symbol, so forgetting the original contents. These devices have the same computational power as finite automata, namely they characterize the class of regular languages. We study the cost in size of the conversions of forgetting 1-limited automata, in both nondeterministic and deterministic cases, into equivalent one-way nondeterministic and deterministic automata, providing optimal bounds in terms of exponential or superpolynomial functions. We also discuss the size relationships with two-way finite automata. In this respect, we prove the existence of a language for which forgetting 1-limited automata are exponentially larger than equivalent minimal deterministic two-way automata.
description: In Proceedings NCMA 2023, arXiv:2309.07333
Translating Interculturality: Analysis of the intercultural elements in Weicheng and their translations into different European cultural settings
Creators: name: Sayols, Jesús
Publisher: name: IATIS and the Centre for Translation and Textual Studies (CTTS) at Dublin City University
Year: 2011
Subjects: Chinese
interculturality
literature
Qian Zhongshu
translation
weicheng

description: New Voices in Translation Studies, 7, 1, -
Word Connections Teacher Manual, 2nd Edition
Creators: name: Toste, Jessica R.
name: Capin, Philip
name: Williams, Kelly J.
name: Kearns, Devin M.
name: Vaughn, Sharon
Publisher: name: figshare
Year: 2023
Subjects: Other education not elsewhere classified
Special education and disability

description: WORD CONNECTIONS, SECOND EDITION [Published June 2023] ------------------------------------------------------------------------------------ The Word Connections Teacher Manual includes scripts for all 40 lessons. The introduction to the manual presents an overview of the program and descriptions of the lesson structure, instructional routines, and organization of materials. Please refer to the Instructional Scope & Sequence for a listing of the components included in each lesson and other specific activity details. The Teacher Reference section includes additional reference guides that summarize vowel patterns taught during warm-up, new affixes taught each lesson, word-building game descriptions, and key word definitions for text reading. For questions or to share feedback, please contact Dr. Jessica Toste via email or visit her website. Word Connections: A Multisyllabic Word Reading Program©
Access to Health Care for Language Minorities: Kol La'briut telephone medical interpreting service as a case study
Creators: name: Schuster, Michal
Publisher: name: IATIS and the Centre for Translation and Textual Studies (CTTS) at Dublin City University
Year: 2011
Subjects: access to healthcare
Ethiopian-Israeli community
linguistic minorities
medical interpreting
organizational sociology
telephone interpreting

description: New Voices in Translation Studies, 7, 1, -
Automatic Summarization as a Documentation Resource for the Human Translation of Research Articles from the Legal-Technological Field (Spanish-English-French)
Creators: name: Báez, María Cristina Toledo
Publisher: name: IATIS and the Centre for Translation and Textual Studies (CTTS) at Dublin City University
Year: 2011
Subjects: automatic summarization
english
french
legal-technological discourse
fpanish
specialized translation
research article

description: New Voices in Translation Studies, 7, 1, -