cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Variable Radio Emission from the Young Stellar Host of a Hot Jupiter
Creators: name: Bower, Geoffrey C.
name: Loinard, Laurent
name: Dzib, Sergio
name: Galli, Phillip A. B.
name: Ortiz-León, Gisela N.
name: Moutou, Claire
name: Donati, Jean-Francois
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the discovery of variable radio emission associated with the T Tauri star, V830 Tau, which was recently shown to host a hot Jupiter companion. Very Large Array observations at a frequency of 6 GHz reveal a detection on 01 May 2011 with a flux density $919 \pm 26\ μ$Jy, along with non-detections in two other epochs at $<66$ and $<150\ μ$Jy. Additionally, Very Long Baseline Array observations include one detection and one non-detection at comparable sensitivity, demonstrating that the emission is nonthermal in origin. The emission is consistent with the gyro-synchrotron or synchrotron mechanism from a region with a magnetic field ${\stackrel{\scriptstyle >}{\scriptstyle \sim}} 30$ G, and is likely driven by an energetic event such as magnetic reconnection that accelerated electrons. With the limited data we have, we are not able to place any constraint on the relationship between the radio emission and the rotational or orbital properties of V830 Tau. This is the first detection of radio emission from a non-degenerate star known to host an exoplanet.
description: ApJ, in press
Chamaecrista falcinella Lock
Creators: name: Musandiwa, Liada
name: Magee, Anthony R.
name: Boatwright, James S.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Chamaecrista
Chamaecrista falcinella

description: 6. CHAMAECRISTA FALCINELLA (Oliv.) Lock in Kew Bull. 43: 336 (1988). Cassia falcinella Oliv. in F.T.A. 2: 282 (1871); Bak. f., Leg. Trop. Afr. 3: 641 (1930); Steyaert in F. T.B. 3: 520 (1952); Brenan in Kew Bull. 14: 178 (1960), in F.T.A. Legum. Caesalp.: 90 (1967). TYPE: TANZANIA. Bukoba district, Karagwe, Grant 445 (holotype: K [K00232433]–image!.). This species occurs widely from central tropical to southern Africa (Gordon-Gray 1977). Three varieties are recognised, of which only one, C. falcinella var. parviflora, occurs in southern Africa. Chamaecrista falcinella var. falcinella is known from Kenya, Uganda, Tanzania, and Democratic Republic of Congo, and C. falcinella var. intermedia (Brenan) Lock from Tanzania and Zambia (Brenan 1967).
description: Published as part of Musandiwa, Liada, Magee, Anthony R. & Boatwright, James S., 2022, A Taxonomic Revision of Chamaecrista (Caesalpinioideae, Cassieae, Cassiinae) in Southern Africa, pp. 992-1011 in Systematic Botany (Basel, Switzerland) (Basel, Switzerland) 47 (4) on page 1002, DOI: 10.1600/036364422x16674053033831, http://zenodo.org/record/8117056
description: {"references": ["Gordon-Gray, K. D. 1977. Cassia. Pp. 69 - 108 in Flora of Southern Africa, vol. 16, part 2, ed. J. H. Ross. Pretoria: Botanical Research Institute.", "Brenan, J. P. M. 1967. Flora of Tropical East Africa. Leguminosae: Subfamily Caesalpinioideae. Kew: Royal Botanic Gardens."]}
Robust Ensemble Clustering Using Probability Trajectories
Creators: name: Huang, Dong
name: Lai, Jian-Huang
name: Wang, Chang-Dong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Although many successful ensemble clustering approaches have been developed in recent years, there are still two limitations to most of the existing approaches. First, they mostly overlook the issue of uncertain links, which may mislead the overall consensus process. Second, they generally lack the ability to incorporate global information to refine the local links. To address these two limitations, in this paper, we propose a novel ensemble clustering approach based on sparse graph representation and probability trajectory analysis. In particular, we present the elite neighbor selection strategy to identify the uncertain links by locally adaptive thresholds and build a sparse graph with a small number of probably reliable links. We argue that a small number of probably reliable links can lead to significantly better consensus results than using all graph links regardless of their reliability. The random walk process driven by a new transition probability matrix is utilized to explore the global information in the graph. We derive a novel and dense similarity measure from the sparse graph by analyzing the probability trajectories of the random walkers, based on which two consensus functions are further proposed. Experimental results on multiple real-world datasets demonstrate the effectiveness and efficiency of our approach.
description: The MATLAB code and experimental data of this work are available at: https://www.researchgate.net/publication/284259332
Unveiling the Low Surface Brightness Universe with Roman
Creators: name: Montes, Mireia
Publisher: name: Zenodo
Year: 2023
Subjects: Surveys of Nearby Galaxies

description: There is a huge amount of astrophysical events that remain barely studied due to the lack of large, deep surveys. This is the Universe at the lowest density of stars, largely unknown even though it promises to deliver transformational insights in our knowledge of the star formation in galaxies in the lowest mass regime, the hierarchical assembly of galaxies and clusters of galaxies, and the ultimate nature of dark matter. Deep space observations have expanded our knowledge of the properties of these faint features (e.g., HUDF, Frontier Fields) while at the same time allowing us to find unique objects. However, wide areas and larger samples are needed in order to map the full range of properties of these structures and, therefore, constrain our theoretical paradigm. Roman has the power to end this scarcity of sufficiently good quality data. In this talk, I will outline the tremendous discovery potential of Roman in the Low Surface Brightness Universe and give some examples of what might wait for the Roman eye. There is a huge amount of astrophysical events that remain barely studied due to the lack of large, deep surveys. This is the Universe at the lowest density of stars, largely unknown even though it promises to deliver transformational insights in our knowledge of the star formation in galaxies in the lowest mass regime, the hierarchical assembly of galaxies and clusters of galaxies, and the ultimate nature of dark matter. Deep space observations have expanded our knowledge of the properties of these faint features (e.g., HUDF, Frontier Fields) while at the same time allowing us to find unique objects. However, wide areas and larger samples are needed in order to map the full range of properties of these structures and, therefore, constrain our theoretical paradigm.
Des  Seeligen Herrn Professor Gellerts geistliche Oden & Lieder : zur Andacht in Music gebracht
Gellerts Oden
Creators: name: Kachel, Jacob Christoph
Publisher: name: [s.n.]
Year: 1760

description: Stimmen: Sopran mit Klavier (Discant mit Basso) ; Alt (Alto) ; Tenor (Tenor) ; Bass (Basso) ; Kontrabass (Contra Basso)
description: von Christoph Kachel
description: Widmung: Dem Hochl. Edlen Herren Herrn Director Lucas Sarasin zugeeignet
description: U.a. 1796 bei Johann Jacob Flick in gedruckter Form erschienen
description: Deutsch
description: Verzeichnung=Description=Inventaire 2009 Übernahme Rekatalogis. AK UB durch Medea 2002-2005
description: Verzeichnung=Description=Inventaire Mai 2023 HAN-Katalogisierungsregeln jpl
Briefe von Moses Mendelssohn an Johann Caspar Lavater [Abschriften]
Moses Mendelssohn an Johann Caspar Lavater
Creators: name: Mendelsohn, Moses
Publisher: name: [s.n.]
Year: 1769
Subjects: Briefsammlung

description: Enthält Briefabschriften u. a. vom: 9. Februar 1770; 24. Dezember 1796; 10. Januar 1770; 9. April 1770
Briefe von Johann Georg Zimmermann an Johann Caspar Lavater [Abschriften]
Johann Georg Zimmermann an Johann Caspar Lavater
Creators: name: Zimmermann, Johann Georg
Publisher: name: [s.n.]
Year: 1768
Subjects: Briefsammlung

description: Enthält auch Briefabschriften von Korrespondez von Johann Georg Zimmermann mit Christian Graf zu Stolberg
Insights into the Deactivation of 5-Bromouracil after UV Excitation
Creators: name: Peccati, Francesca
name: Mai, Sebastian
name: González, Leticia
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: 5-Bromouracil is a nucleobase analogue that can replace thymine in DNA strands and acts as a strong radiosensitizer, with potential applications in molecular biology and cancer therapy. Here, the deactivation of 5-bromouracil after UV irradiation is investigated in the singlet and triplet manifold by accurate quantum chemistry calculations and nonadiabatic dynamics simulations. It is found that after irradiation to the bright 1pipi* state, three main relaxation pathways are in principle possible: relaxation back to the ground state, intersystem crossing, and C-Br photodissociation. Based on accurate MS-CASPT2 optimizations, we propose that ground state relaxation should be the predominant deactivation pathway in gas phase. We then employ different electronic structure methods to assess their suitability to carry out excited-state dynamics simulations. MRCIS was used in surface hopping simulations to compute the ultrafast intersystem crossing dynamics, which mostly involves the 1nOpi* and 3pipi* states.
description: 37 pages, 7 figures, 1 table, supplementary geometry data
Tilted resonators in a triangular elastic lattice: chirality, Bloch waves and negative refraction
Creators: name: Tallarico, Domenico
name: Movchan, Natalia V.
name: Movchan, Alexander B.
name: Colquitt, Daniel J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Physics (physics.class-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider a vibrating triangular mass-truss lattice whose unit cell contains a resonator of a triangular shape. The resonators are connected to the triangular lattice by trusses. Each resonator is tilted, i.e. it is rotated with respect to the triangular lattice's unit cell through an angle $\vartheta_0$. This geometrical parameter is responsible for the emergence of a resonant mode in the Bloch spectrum for elastic waves and strongly affects the dispersive properties of the lattice. Additionally, the tilting angle $\vartheta_0$ triggers the opening of a band gap at a Dirac-like point. We provide a physical interpretation of these phenomena and discuss the dynamical implications on elastic Bloch waves. The dispersion properties are used to design a structured interface containing tilted resonators which exhibit negative refraction and focussing, as in a "flat elastic lens".
description: Preprint of a research article. 26 pages, 39 figures, 2 tables
Anerkennung, Lob, Beifall und tieferes Verständnis
Creators: name: Klose, Friedrich
Publisher: name: [s.n.]
Year: 1919

description: F. Klose
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Digitalisierung=Digitization=Numérisation Mai 2023 TIFF
description: Verzeichnung=Description=Inventaire Mai 2023 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Nachlassverzeichnis und Original ben
Zur Frage: Braucht das deutsche Volk sein Theater
Creators: name: Klose, Friedrich
Publisher: name: [s.n.]
Year: 1930

description: F. Klose
description: Vorhanden sind zwei handschriftliche Entwürfe (7 Bl.), und eine maschinengeschriebene Fassung, datiert "März 1030", Typoskript und Durchschlag mit zahlreichen handschriftlichen Korrekturen (6 Bl.)
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Digitalisierung=Digitization=Numérisation Mai 2023 TIFF
description: Verzeichnung=Description=Inventaire Mai 2023 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Nachlassverzeichnis und Original ben
The SuperCOSMOS all-sky galaxy catalogue
Creators: name: Peacock, J. A.
name: Hambly, N. C.
name: Bilicki, M.
name: MacGillivray, H. T.
name: Miller, L.
name: Read, M. A.
name: Tritton, S. B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We describe the construction of an all-sky galaxy catalogue, using SuperCOSMOS scans of Schmidt photographic plates from the UKST and POSS2 surveys. The photographic photometry is calibrated using SDSS data, with results that are linear to 2% or better. All-sky photometric uniformity is achieved by matching plate overlaps and also by requiring homogeneity in optical-to-2MASS colours, yielding zero points that are uniform to 0.03 mag. or better. The typical AB depths achieved are B_J<21, R_F<19.5 and I_N<18.5, with little difference between hemispheres. In practice, the I_N plates are shallower than the B_J & R_F plates, so for most purposes we advocate the use of a catalogue selected in these two latter bands. At high Galactic latitudes, this catalogue is approximately 90% complete with 5% stellar contamination; we quantify how the quality degrades towards the Galactic plane. At low latitudes, there are many spurious galaxy candidates resulting from stellar blends: these approximately match the surface density of true galaxies at |b|=30 deg. Above this latitude, the catalogue limited in B_J & R_F contains in total about 20 million galaxy candidates, of which 75% are real. This contamination can be removed, and the sky coverage extended, by matching with additional datasets. This SuperCOSMOS catalogue has been matched with 2MASS and with WISE, yielding quasi-allsky samples of respectively 1.5 million and 18.5 million galaxies, to median redshifts of 0.08 and 0.20. This legacy dataset thus continues to offer a valuable resource for large-angle cosmological investigations.
description: Submitted to MNRAS. Data available at http://ssa.roe.ac.uk/allSky
Twistronics: Manipulating the Electronic Properties of Two-dimensional Layered Structures through their Twist Angle
Creators: name: Carr, Stephen
name: Massatt, Daniel
name: Fang, Shiang
name: Cazeaux, Paul
name: Luskin, Mitchell
name: Kaxiras, Efthimios
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The ability in experiments to control the relative twist angle between successive layers in two-dimensional (2D) materials offers a new approach to manipulating their electronic properties; we refer to this approach as "twistronics". A major challenge to theory is that, for arbitrary twist angles, the resulting structure involves incommensurate (aperiodic) 2D lattices. Here, we present a general method for the calculation of the electronic density of states of aperiodic 2D layered materials, using parameter-free hamiltonians derived from ab initio density-functional theory. We use graphene, a semimetal, and MoS$_2$, a representative of the transition metal dichalcogenide (TMDC) family of 2D semiconductors, to illustrate the application of our method, which enables fast and efficient simulation of multi-layered stacks in the presence of local disorder and external fields. We comment on the interesting features of their Density of States (DoS) as a function of twist-angle and local configuration and on how these features can be experimentally observed.
description: 7 pages, 4 figures, to be submitted to Phys. Rev. B
Zur Krisis des deutschen Volksliedes
Creators: name: Klose, Friedrich
Publisher: name: [s.n.]
Year: 1930

description: F. Klose
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Verzeichnung=Description=Inventaire Mai 2023 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Nachlassverzeichnis und Original ben
description: Digitalisierung=Digitization=Numérisation Mai 2023 TIFF
Molecular gas in the star-forming region IRAS 08589-4714
Creators: name: Saldaño, Hugo P.
name: Vásquez, J.
name: Cappa, C. E.
name: Gómez, M.
name: Duronea, N. U.
name: Rubio, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an analysis of the region IRAS 08589-4714 with the aim of characterizing the molecular environment. We observed the CO(3-2), ^{13}CO(3-2), C^{18}O(3-2), HCO+(3-2), and HCN(3-2) molecular lines in a region of 150" x 150", centered on the IRAS source, to analyze the distribution and characteristics of the molecular gas linked to the IRAS source. The molecular gas distribution reveals a molecular clump that is coincident with IRAS 08589-4714 and with a dust clump detected at 1.2 mm. The molecular clump is 0.45 pc in radius and its mass and H_2 volume density are 310 Mo and 1.2 x 10^4 cm^{-3}, respectively. Two overdensities were identified within the clump in HCN and HCO lines. A comparison of the LTE and virial masses suggests that the clump is collapsing in regions that harbor young stellar objects. An analysis of the molecular lines suggests that they are driving molecular outflows.
description: 4 pages, 4 figures. Accepted for publication in A&A
Best Practices for Replicability, Reproducibility and Reusability of Computer-Based Experiments Exemplified by Model Reduction Software
Creators: name: Fehr, Jörg
name: Heiland, Jan
name: Himpe, Christian
name: Saak, Jens
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Software (cs.MS)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences
subject: G.4
subject: 68N30

description: Over the recent years the importance of numerical experiments has gradually been more recognized. Nonetheless, sufficient documentation of how computational results have been obtained is often not available. Especially in the scientific computing and applied mathematics domain this is crucial, since numerical experiments are usually employed to verify the proposed hypothesis in a publication. This work aims to propose standards and best practices for the setup and publication of numerical experiments. Naturally, this amounts to a guideline for development, maintenance, and publication of numerical research software. Such a primer will enable the replicability and reproducibility of computer-based experiments and published results and also promote the reusability of the associated software.
Strong Evidence for the Density-wave Theory of Spiral Structure in Disk Galaxies
Creators: name: Pour-Imani, Hamed
name: Kennefick, Daniel
name: Kennefick, Julia
name: Davis, Benjamin L.
name: Shields, Douglas W.
name: Abdeen, Mohamed Shameer
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The density-wave theory of galactic spiral-arm structure makes a striking prediction that the pitch angle of spiral arms should vary with the wavelength of the galaxy's image. The reason is that stars are born in the density wave but move out of it as they age. They move ahead of the density wave inside the co-rotation radius, and fall behind outside of it, resulting in a tighter pitch angle at wavelengths that image stars (optical and near-infrared) than those that are associated with star formation (far-infrared and ultraviolet). In this study we combined large sample size with wide range of wavelengths, from the ultraviolet to the infrared to investigate this issue. For each galaxy we used an optical wavelength image (B-band: 445 nm) and images from the Spitzer Space Telescope at two infrared wavelengths (infrared: 3.6 and 8.0 μm) and we measured the pitch angle with the 2DFFT and Spirality codes. We find that the B-band and 3.6 μm images have smaller pitch angles than the infrared 8.0 μm image in all cases, in agreement with the prediction of density-wave theory. We also used images in the ultraviolet from Galaxy Evolution Explorer, whose pitch angles agreed with the measurements made at 8 μm.
description: 7 pages, 3 figures, 1 table, http://stacks.iop.org/2041-8205/827/i=1/a=L2
Chamaecrista gordon-grayei Musandiwa & Magee & Boatwright 2022
Creators: name: Musandiwa, Liada
name: Magee, Anthony R.
name: Boatwright, James S.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Chamaecrista
Chamaecrista gordon-Grayei

description: 7. Chamaecrista gordon-grayei Musandiwa & Boatwr., sp. nov. TYPE: NAMIBIA. Andara (1821), Caprivi-Zipfel, Popa f ä alle [Popa Falls] Caprivi Zipfel [Caprivi Strip] (– BA), 9 Mar 1958, Giess 2020 (holotype: WIND!). Annual herbs to 1.5 m high. Stems erect or semi-erect, with curved hairs. Leaves paripinnate, 36–104 × 2–4 mm, slightly tapering distally; stipules 6–11 mm long, triangular, base oblique, apex acuminate; extrafloral nectaries, sessile or raised on small stalk, ± 0.5 × 0.2–0.4 mm circular; rachis crested. Leaflets 20–65-jugate, 15–90 × 0.2–0.3 base oblique, apex acuminate, tapering distally; margin glabrous to ciliate. Inflorescence supra-axillary, 1–2 flowered; flowers 4–5 × 4–6; bract glabrous, base oblique, apex acuminate; bracteoles 2, glabrous, towards top of pedicels. Pedicels with short hairs, at flowering 7–25 mm long, at fruiting 10–30 mm long. Sepals 5, narrowly lanceolate, 6–9 × 1–4 mm, with or without appressed hairs, on the outer surface. Petals 5, ovate, ± 6 × 2–6 mm; bright yellow. Stamens 9–10, slightly curved, anthers in three series, 2(3) small, 2–3 mm long, 4 middle, ± 4 mm long, 3(4) large, ± 5 mm long, with very short filament 1–2 mm long. Ovary ± 0.5 mm long, densely covered with greyish to whitish hairs, style glabrous, curved. Pods (30) 50–63 mm long, straight, or slightly curved with suppressed hairs. Seeds not seen. Figure 10.  Diagnostic Characters — Chamaecrista gordon-grayei shares the crested leaf rachis with C. grandiglandulata and C. mimosoides, but is distinguished from those species by the long leaves (36–104 mm long), with sub-sessile to sessile, circular extrafloral nectaries (large extrafloral nectaries that overlap the sides of petiole in C. grandiglandulata and small, circular or circular-elliptic extrafloral nectaries in C. mimosoides), and bright yellow flowers.  Etymology — Chamaecrista gordon-grayei is named in honour of Dr. Kathleen D. Gordon-Gray (1918–2012) who showed remarkable passion for the southern African flora. Two subspecies are recognised:
description: Published as part of Musandiwa, Liada, Magee, Anthony R. & Boatwright, James S., 2022, A Taxonomic Revision of Chamaecrista (Caesalpinioideae, Cassieae, Cassiinae) in Southern Africa, pp. 992-1011 in Systematic Botany (Basel, Switzerland) (Basel, Switzerland) 47 (4) on pages 1003-1005, DOI: 10.1600/036364422x16674053033831, http://zenodo.org/record/8117056
Punctures for Theories of Class $\mathcal{S}_Γ$
Creators: name: Heckman, Jonathan J.
name: Jefferson, Patrick
name: Rudelius, Tom
name: Vafa, Cumrun
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Commutative Algebra (math.AC)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: With the aim of understanding compactifications of 6D superconformal field theories to four dimensions, we study punctures for theories of class $\mathcal{S}_Γ$. The class $\mathcal{S}_Γ$ theories arise from M5-branes probing $\mathbb{C}^2 / Γ$, an ADE singularity. The resulting 4D theories descend from compactification on Riemann surfaces decorated with punctures. We show that for class $\mathcal{S}_Γ$ theories, a puncture is specified by singular boundary conditions for fields in the 5D quiver gauge theory obtained from compactification of the 6D theory on a cylinder geometry. We determine general boundary conditions and study in detail solutions with first order poles. This yields a generalization of the Nahm pole data present for $1/2$ BPS punctures for theories of class $\mathcal{S}$. Focusing on specific algebraic structures, we show how the standard discussion of nilpotent orbits and its connection to representations of $\mathfrak{su}(2)$ generalizes in this broader context.
description: 39 pages
Coherent Order Parameter Oscillations in the Ground State of the Excitonic Insulator Ta2NiSe5
Creators: name: Werdehausen, Daniel
name: Takayama, Tomohiro
name: Höppner, Marc
name: Albrecht, Gelon
name: Rost, Andreas W.
name: Lu, Yangfan
name: Manske, Dirk
name: Takagi, Hidenori
name: Kaiser, Stefan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The excitonic insulator is an intriguing electronic phase of quasi-condensed excitons. A prominent candidate is the small bandgap semiconductor Ta2NiSe5, in which excitons are believed to undergo a BEC-like transition. But experimental evidence for the existence of a coherent condensate in this material is still missing. A direct fingerprint of such a state would be the observation of its collective modes, which are equivalent to the Higgs- and Goldstone-modes in superconductors. Here we report evidence for the existence of a coherent amplitude response in the excitonic insulator phase of Ta2NiSe5. Using non-linear excitations with short laser pulses we identify a phonon-coupled state of the condensate that can be understood as a coupling of its electronic Higgs-mode to a low frequency phonon. The Higgs-mode contribution substantiates the picture of an electronically driven phase transition and characterizes the transient order parameter of the excitonic insulator as a function of temperature and excitation density.
description: 32 pages, 12 figures, 1 table
Kazantsev model in nonhelical 2.5D flows
Creators: name: Seshasayanan, K.
name: Alexakis, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the dynamo instability for a Kazantsev-Kraichnan flow with three velocity components that depends only on two-dimensions u = (u(x, y, t), v(x, y, t), w(x, y, t)) often referred to as 2.5 dimensional (2.5D) flow. Within the Kazantsev-Kraichnan frame- work we derive the governing equations for the second order magnetic field correlation function and examine the growth rate of the dynamo instability as a function of the control parameters of the system. In particular we investigate the dynamo behaviour for large magnetic Reynolds numbers Rm and flows close to being two-dimensional and show that these two limiting procedures do not commute. The energy spectra of the unstable modes are derived analytically and lead to power-law behaviour that differs from the three dimensional and two dimensional case. The results of our analytical calculation are compared with the results of numerical simulations of dynamos driven by prescribed fluctuating flows as well as freely evolving turbulent flows, showing good agreement.
Metallicity dependence of turbulent pressure and macroturbulence in stellar envelopes
Creators: name: Grassitelli, Luca
name: Fossati, Luca
name: Langer, Norbert
name: Simon-Diaz, Sergio
name: Castro, Norberto
name: Sanyal, Debashis
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Macroturbulence, introduced as a fudge to reproduce the width and shape of stellar absorption lines, reflects gas motions in stellar atmospheres. While in cool stars, it is thought to be caused by convection zones immediately beneath the stellar surface, the origin of macroturbulence in hot stars is still under discussion. Recent works established a correlation between the turbulent-to-total pressure ratio inside the envelope of stellar models and the macroturbulent velocities observed in corresponding Galactic stars. To probe this connection further, we evaluated the turbulent pressure that arises in the envelope convective zones of stellar models in the mass range 1-125 Msun based on the mixing-length theory and computed for metallicities of the Large and Small Magellanic Cloud. We find that the turbulent pressure contributions in models with these metallicities located in the hot high-luminosity part of the Hertzsprung-Russel (HR) diagram is lower than in similar models with solar metallicity, whereas the turbulent pressure in low-metallicity models populating the cool part of the HR-diagram is not reduced. Based on our models, we find that the currently available observations of hot massive stars in the Magellanic Clouds appear to support a connection between macroturbulence and the turbulent pressure in stellar envelopes. Multidimensional simulations of sub-surface convection zones and a larger number of high-quality observations are necessary to test this idea more rigorously.
description: Accepted A&A, 8 pg
Chamaecrista gordon-grayei Musandiwa & Magee & Boatwright 2022
Creators: name: Musandiwa, Liada
name: Magee, Anthony R.
name: Boatwright, James S.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Chamaecrista
Chamaecrista gordon-Grayei

description: 7a. CHAMAECRISTA GORDON-GRAYEI subsp. GORDON-GRAYEI. Pedicels when flowering 7–10 mm long, at fruiting 10–15 mm long.  Diagnostic Characters — Chamaecrista gordon-grayei subsp. gordon -grayei is recognised for its short pedicels (7–10 mm long).  Distribution and Ecology — Chamaecrista gordon-grayei subsp. gordon-grayei is known from northern regions of Namibia from Tarikora to Andara, extending beyond the region to Harare in Zimbabwe (Fig. 11). Occurs in woodlands, on sandy soil at elevations below 1000 m. Flowering from January–February.  Additional Specimens Examined — Namibia. —1820 (Tarikora): Kavango, Bogani old point in the shallow water of the Okavango River (–BB), 25 Apr 1977, Muller and Giess 544 (WIND) . 1823 (Siambisso): Balelwa banks of Channel (–AB), 21 Feb 1988, Maggs 665 (WIND). Zimbabwe. —1731 (Harare): Harare (–AB), without date, A student s.n. (NU).
description: Published as part of Musandiwa, Liada, Magee, Anthony R. & Boatwright, James S., 2022, A Taxonomic Revision of Chamaecrista (Caesalpinioideae, Cassieae, Cassiinae) in Southern Africa, pp. 992-1011 in Systematic Botany (Basel, Switzerland) (Basel, Switzerland) 47 (4) on page 1005, DOI: 10.1600/036364422x16674053033831, http://zenodo.org/record/8117056
ADAPTIVE RANDOM TESTING FOR WEB APPLICATIONS
Creators: name: Shauchuk, V.I.
Publisher: name: Вестник науки
Year: 2024
Subjects: testing
software
adaptive random testing
web application
test case
strategies
algorithms

description: The purpose of this article is to review adaptive random testing is an improved version of random testing, that adapts the test case generation process based on the feedback from the previous test cases. Adaptive random testing aims to increase the fault detection capability of random testing, by generating test cases that are more evenly distributed and more diverse in the test space. It can use different strategies or algorithms to adapt the test case generation process, such as exclusion, partitioning, distance, or density.
Why cannot investors hold Leveraged Exchanged Traded Funds as a long-term investment instrument given the mathematical structure of LETFs?
Creators: name: XiaoqiaoLi
Publisher: name: University of Chicago
Year: 2022
Subjects: subject: Leveraged Exchanged Traded Funds
subject: Volatility decay
subject: Arithmetic return
subject: Geometrci return
subject: Re-balancing Activity

description: Investments in Leveraged Exchange-Traded Funds have increased recently. Leverage is a key feature of these funds, and they're utilized mostly by short-term traders. They are also popular with individual investors who want to make leveraged or hedging investments in their portfolios. Critics, however, have charged that LETFs are unsuitable for longer-term investors, due to volatility decay. Volatility decay occurs when the returns of Leveraged Exchange Traded Funds diverge from the multiple returns of their underlying assets as the holding period lengthens. Volatility decay is demonstrated to be accelerated by increasing the leverage multiplier algebraically. In this paper, I will describe the mathematical structures of Leveraged Exchange-Traded Funds and Exchange-Traded Funds in terms of their performance in terms of arithmetic return, geometric return, rebalancing activity, and diffusion process. Using their mathematical structures, it is straightforward to demonstrate the long-term impact of volatility decay on these funds. In addition, I will use historical data to validate the influence of volatility decay, and I will examine the performance of LETFs on the assumption that the portfolio is not subject to volatility decay.
Statistical Bubble Localization with Random Interactions
Creators: name: Li, Xiaopeng
name: Deng, Dong-Ling
name: Wu, Yang-Le
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study one-dimensional spinless fermions with random interactions, but without any on-site disorder. We find that random interactions generically stabilize a many-body localized phase, in spite of the completely extended single-particle degrees of freedom. In the large randomness limit, we construct "bubble-neck" eigenstates having a universal area-law entanglement entropy on average, with the number of volume-law states being exponentially suppressed. We argue that this statistical localization is beyond the phenomenological local-integrals-of-motion description of many-body localization. With exact diagonalization, we confirm the robustness of the many-body localized phase at finite randomness by investigating eigenstate properties such as level statistics, entanglement/participation entropies, and nonergodic quantum dynamics. At weak random interactions, the system develops a thermalization transition when the single-particle hopping becomes dominant.
description: 5+4 pages, 8 figures
Chamaecrista gordon-grayei subsp. longipedicellata Musandiwa & Boatwr
Creators: name: Musandiwa, Liada
name: Magee, Anthony R.
name: Boatwright, James S.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Chamaecrista
Chamaecrista gordon-Grayei
Chamaecrista gordon-Grayei subsp. longipedicellata musandiwa & boatwr

description: 7b. Chamaecrista gordon-grayei subsp. longipedicellata Musandiwa & Boatwr ., subsp. nov. TYPE: NAMIBIA. Andara, Omuramba Mahango between Bangani and Bechuanaland border, 25 Jan 1956, De Winter and Wiss 4423 (holotype: PRE!, isotype: WIND!). Pedicels when flowering 15–30 mm long, at fruiting 15–30 cm long.  Diagnostic Characters — Chamaecrista gordon-grayei subsp. longipedicellata is recognised by its long pedicels (15–20 mm long).  Distribution and Ecology — Chamaecrista gordon-grayei subsp. longipedicellata is known from Chirundi in Namibia through Katima Mulilo to Tsumkwe, extending to Siamisso in Botswana and beyond the region to Harare in Zimbabwe. Apparently absent from South Africa but with one record in Harare, Zimbabwe (Fig. 11). Occurs in woodlands, on sandy soil at elevations below 1000 m. Flowering from January–February.  Etymology — Chamaecrista gordon-grayei subsp. longipedicellata is named for its long pedicels.  Additional Specimens Examined — Namibia. —1722 (Chirundi): Caprivi Game Park, on road to Angola border from Divundu-Kongola main road (–CC), 20 Jan 2005, Hochobes MH1122 (WIND) . 1724 (Katima Mulilo): near Ngoma in Terminalia (–DC), 10 Feb 1988, Maggs 197 (WIND). 1819 (Karakuwisa): Mile 46, observatory, plot 89 (–AD), 18 Feb 2003, Strohbach BS5621 (WIND); at Camp just S of Mutumpo Observatory (–DA), 06 Feb 2002, Strohbach BS 5275 (WIND). 1820 (Tarikora): 10 miles (ca. 16 km) north of Tamso on road to Kapupahedi (–DA), 17 Feb 1956, De Winter & Marais 4728 (PRE). 1920 (Tsumkwe): ca. 48.2 km N of Gautscha Pan (–DA), 07 Feb 1958, Story 6439 (WIND). Botswana. —1823 (Siambisso): Burkea/Baikiaea woodland near Movombe village (–BA), 14 Feb 1983, Smith 4034 (PRE). Zimbabwe. —1731 (Harare): Cleveland Dam (–BA), 07 Feb 1976, Daillecourt 25 (NU).
description: Published as part of Musandiwa, Liada, Magee, Anthony R. & Boatwright, James S., 2022, A Taxonomic Revision of Chamaecrista (Caesalpinioideae, Cassieae, Cassiinae) in Southern Africa, pp. 992-1011 in Systematic Botany (Basel, Switzerland) (Basel, Switzerland) 47 (4) on page 1005, DOI: 10.1600/036364422x16674053033831, http://zenodo.org/record/8117056
INVESTIGATION OF PROBLEMS THAT MAY ARISE IN AN ASYNCHRONOUS MOTOR, THEIR DIAGNOSIS AND REPAIR PROCESS
Creators: name: Aliev N.A.
name: Agayev, R.A.
Publisher: name: Вестник науки
Year: 2024
Subjects: stator winding
insulation
protection
insulation classes
effect of temperature

description: In order to ensure the normal and efficient operation of enterprises, it is important to carry out timely repairs along with proper maintenance of electrical equipment during operation. In order to carry out repair work in a short time, with quality and with little expenditure, in addition to the high level of organization of repair work, there must be highly specialized specialists. The long-term experience of enterprises' electrical repair shops and electrical repair plants shows that the electricity coming for repair more than 80% of its equipment are transformers, electrical machines and switching devices. In the article, the problems that may arise in the asynchronous motor, issues related to diagnostics and repair work were considered.
Phase behavior of active Brownian disks, spheres, and dumbbells
Creators: name: Siebert, Jonathan Tammo
name: Letz, Janina
name: Speck, Thomas
name: Virnau, Peter
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In this paper we provide high precision estimates of the phase diagram of active Brownian particles. We extract coexisting densities from simulations of phase separated states in an elongated box (slab geometry) which minimizes finite-size effects and allows for precise determination of points on the binodal lines. Using this method, we study the influence of both shape and dimensionality on the two-phase region. Active spheres and dumbbells of active particles are compared to the known phase diagram of active Brownian disks. In the case of dimers, both correlated and uncorrelated propulsion of the two beads are studied. The influence of correlation is discussed through a simple mapping.
Masticatory function loss and frailty risk in community-dwelling older people in the State of São Paulo
Creators: name: Arenas-Márquez, María Jesús
name: Tôrres, Luísa Helena do Nascimento
name: Borim, Flávia Silva Arbex
name: Yassuda, Mônica Sanches
name: Neri, Anita Liberalesso
name: Sousa, Maria da Luz Rosário de
Publisher: name: figshare
Year: 2022
Subjects: subject: 110599 Dentistry not elsewhere classified
subject: FOS: Clinical medicine
subject: 110308 Geriatrics and Gerontology

description: Objective: To verify if the loss of masticatory function increases the risk of frailty in community-dwelling older people in the state of São Paulo. Methods: A prospective cohort design was adopted based on the FIBRA study database (Fragility in Brazilian Elderly), with a baseline performed in 2008-2009 and follow-up in 2016-2018, elapsed on average 100.2 ± 9.2 months. The outcome variable was the incidence of frailty. The exposure variable was masticatory function according to edentulism and self-reported chewing difficulty. Adjustment variables were sociodemographic, behavioral, and general health conditions. A Poisson regression model with robust variance was used to estimate the relative risk. Results: the cumulative incidence of frailty over eight years was 30 cases per 100 edentulous participants with chewing difficulties, who had a higher risk of developing frailty (RR: 1.75 95% CI 1.09-2.81) than the dentate elderly without chewing difficulties, regardless of smoking (RR: 1.71 95% CI 1.07-2.73) and socioeconomic status (RR: 1.72 95% CI 1.13-2.62). Conclusion: Loss of masticatory function increases the risk of frailty in older people. Future research should study whether the rehabilitation of oral function reduces this risk.
 Rev Bras Geriatr Gerontol, 25(5), e210234. https://doi.org/10.1590/1981-22562022025.210234.en
The Molecular Baryon Cycle of M82
Creators: name: Chisholm, John
name: Matsushita, Satoki
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Baryons cycle into galaxies from the inter-galactic medium, are converted into stars, and a fraction of the baryons are ejected out of galaxies by stellar feedback. Here we present new high resolution (3.9"; 68 pc) CO(2-1) and CO(3-2) images that probe these three stages of the baryon cycle in the nearby starburst M 82. We combine these new observations with previous CO(1-0) and [Fe II] images to study the physical conditions within the molecular gas. Using a Bayesian analysis and the radiative transfer code RADEX, we model molecular Hydrogen temperatures and densities, as well as CO column densities. Besides the disc, we concentrate on two regions within the galaxy: an expanding super-bubble and the base of a molecular streamer. Shock diagnostics, kinematics, and optical extinction suggest that the streamer is an inflowing filament, with a molecular gas mass inflow rate of 3.5 M$_\odot$ yr$^{-1}$. We measure the molecular gas mass outflow rate of the expanding super-bubble to be 17 M$_\odot$ yr$^{-1}$, 5 times higher than the inferred inflow rate, and 1.3 times the star formation rate of the galaxy. The high mass outflow rate and large star formation rate will deplete the galaxy of molecular gas within eight million years, unless there are additional sources of molecular gas.
description: 14 pages, 15 figures, accepted for publication in ApJ
«Persecución» (cuento)
Creators: name: Delgado Del Aguila, Jesús Miguel
Publisher: name: figshare
Year: 2022
Subjects: subject: 200599 Literary Studies not elsewhere classified
subject: FOS: Languages and literature

description: Delgado Del Aguila, Jesús Miguel (2022). «Persecución» (cuento), en: Argos. Revista Electrónica Semestral de Estudios y Creación Literaria. Guadalajara, México: Universidad de Guadalajara. Vol. 9, n.° 24, julio-diciembre, pp. 1-5. Disponible en http://argos.cucsh.udg.mx/narrativa/24_2022b/1_2022b.pdf
keV Sterile Neutrino Dark Matter from Singlet Scalar Decays: The Most General Case
Creators: name: König, Johannes
name: Merle, Alexander
name: Totzauer, Maximilian
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the early Universe production of sterile neutrino Dark Matter by the decays of singlet scalars. All previous studies applied simplifying assumptions and/or studied the process only on the level of number densities, which makes it impossible to give statements about cosmic structure formation. We overcome these issues by dropping all simplifying assumptions (except for one we showed earlier to work perfectly) and by computing the full course of Dark Matter production on the level of non-thermal momentum distribution functions. We are thus in the position to study all aspects of the resulting settings and apply all relevant bounds in a reliable manner. We have a particular focus on how to incorporate bounds from structure formation on the level of the linear power spectrum, since the simplistic estimate using the free-streaming horizon clearly fails for highly non-thermal distributions. Our work comprises the most detailed and comprehensive study of sterile neutrino Dark Matter production by scalar decays presented so far.
description: 59 pages (main text 34 pages), 15 figures
Traducción, interpretación de textos y enseñanza de las lenguas. Entrevista a Ysabel Ydelsa Delgado Del Aguila
Creators: name: Delgado Del Aguila, Jesús Miguel
Publisher: name: figshare
Year: 2022
Subjects: subject: 200323 Translation and Interpretation Studies
subject: FOS: Languages and literature

description: Delgado Del Aguila, Jesús Miguel (2022). «Traducción, interpretación de textos y enseñanza de las lenguas. Entrevista a Ysabel Ydelsa Delgado Del Aguila», en: Cátedra. Revista Especializada en Estudios Culturales y Humanísticos. Panamá: Universidad de Panamá. N.° 19, agosto-julio, pp. 183-185. Disponible en https://www.revistas.up.ac.pa/index.php/catedra/article/view/2975
Symmetry Breaking of Counter-Propagating Light in a Nonlinear Resonator
Creators: name: Del Bino, Leonardo
name: Silver, Jonathan M.
name: Stebbings, Sarah L.
name: Del'Haye, Pascal
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Light is generally expected to travel through isotropic media independent of its direction. This makes it challenging to develop non-reciprocal optical elements like optical diodes or circulators, which currently rely on magneto-optical effects and birefringent materials. Here we present measurements of non-reciprocal transmission and spontaneous symmetry breaking between counter-propagating light in dielectric microresonators. The symmetry breaking corresponds to a resonance frequency splitting that allows only one of two counter-propagating (but otherwise identical) light waves to circulate in the resonator. Equivalently, the symmetry breaking can be seen as the collapse of standing waves and transition to travelling waves within the resonator. We present theoretical calculations to show that the symmetry breaking is induced by Kerr-nonlinearity-mediated interaction between the counter-propagating light. This effect is expected to take place in any dielectric ring-resonator and might constitute one of the most fundamental ways to induce optical non-reciprocity. Our findings pave the way for a variety of applications including all optical switching, nonlinear-enhanced rotation sensing, optically controllable circulators and isolators, optical flip-flops for photonic memories as well as exceptionally sensitive power and refractive index sensors.
description: LDB and JMS contributed equally to this work
A remark on local activity and passivity
Creators: name: Garay, Barnabas
name: Siegmund, Stefan
name: Trostorff, Sascha
name: Waurick, Marcus
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 34D20, 37C20

description: We study local activity and its opposite, local passivity, for linear systems and show that generically an eigenvalue of the system matrix with positive real part implies local activity. If all state variables are port variables we prove that the system is locally active if and only if the system matrix is not dissipative. Local activity was suggested by Leon Chua as an indicator for the emergence of complexity of nonlinear systems. We propose an abstract scheme which indicates how local activity could be applied to nonlinear systems and list open questions about possible consequences for complexity.