cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Transforming early childhood discipline policy through collaborative research and evaluation.
Creators: name: H Callie Silver
name: Zinsser, Katherine
name: Zulauf-McCurdy, Courtney A
name: Lowe-Fotos, Allison
name: Orr, Lori
name: Estlund, Maria
Publisher: name: University of Illinois at Chicago
Year: 2021
Subjects: Uncategorized

description: Nationwide, 17,000 3- and 4-year old children are expelled or suspended from preschool each year (Zeng et al., 2019). In response, advocates and researchers have called on policymakers to implement policies and legislation to prevent our youngest learners from entering the “preschool-to-prison pipeline” before they have even begun formal schooling. This article, coauthored by a team of academic researchers, advocates, and policymakers, includes findings from a multimethod, longitudinal study of the implementation of one state’s approach to curtailing early childhood expulsion, Illinois Public Act 100–0105. Original survey and interview data were collected for this study from early childhood program administrators throughout the state. Our findings have already been used to enhance practice, policy, and dissemination efforts, while also documenting barriers and a need for more data. By sharing how our multidisciplinary coalition collaborated to collect, interpret, disseminate, and translate findings from this study, we hope to inform the development of collaborative partnerships in the study of similar policies in other jurisdictions. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
Penetrating Dust Tori in AGN
Creators: name: Canalizo, Gabriela
name: Max, Claire
name: Antonucci, Robert
name: Whysong, David
name: Stockton, Alan
name: Lacy, Mark
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present preliminary results from high resolution (~ 0.05") adaptive optics observations of Cygnus A. The images show a bi-conic structure strongly suggestive of an obscuring torus around a quasar nucleus. A bright (K'=18.5) point source is found near the expected position of the nucleus. We interpret this source as the hot inner rim of the torus seen through the opening of the torus. Using high angular resolution K-band spectroscopy, we measure the ratio of molecular to recombination hydrogen lines as a function of distance to the center of the putative torus. These measurements place constraints on the properties of the torus and indicate a projected diameter of ~600 pc.
description: To appear in proceeding from "Penetrating Bars through Masks of Cosmic Dust" conference in South Africa. 5 pages
Pseudasterina delicata Aziz & Jangoux 1985
Creators: name: Jangoux, Michel
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Asteroidea
Valvatida
Asterinidae
Pseudasterina
Pseudasterina delicata

description: delicata Aziz & Jangoux, 1985, Pseudasterina
Pseudasterina delicata Aziz & Jangoux, 1985: 284, pl. 2, fig. A, B. — Clark 1993: 227.
CURRENT STATUS. — Pseudasterina delicata Aziz & Jangoux, 1985.
TYPE MATERIAL. — Philippines • holotype; station 32; off Mindoro; MUSORSTOM 2 expedition 1980; depth 220- 192 m; MNHN- IE-2013-4352 • 1 paratype; same as for preceding; MNHN- IE-2013-4351.
description: Published as part of Jangoux, Michel, 2022, The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris, pp. 259-334 in Zoosystema 44 (11) on page 280, DOI: 10.5252/zoosystema2022v44a11, http://zenodo.org/record/6616817
On the Relationship between Cooling Flows and Bubbles
Creators: name: McCarthy, Ian G.
name: Babul, Arif
name: Katz, Neal
name: Balogh, Michael L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A common feature of the X-ray bubbles observed in Chandra images of some "cooling flow" clusters is that they appear to be surrounded by bright, cool shells. Temperature maps of a few nearby luminous clusters reveal that the shells consist of the coolest gas in the clusters -- much cooler than the surrounding medium. Using simple models, we study the effects of this cool emission on the inferred cooling flow properties of clusters. We find that the introduction of bubbles into model clusters that do NOT have cooling flows results in temperature and surface brightness profiles that resemble those seen in nearby "cooling flow" clusters. They also approximately reproduce the recent XMM-Newton and Chandra observations of a high minimum temperature of 1-3 keV. Hence, bubbles, if present, must be taken into account when inferring the physical properties of the ICM. In the case of some clusters, bubbles may account entirely for these observed features, calling into question their designation as clusters with cooling flows. However, since not all nearby "cooling flow" clusters show bubble-like features, we suggest that there may be a diverse range of physical phenomena that give rise to the same observed features.
description: 5 pages, 3 figures, accepted for publication in ApJ Letters. References updated
Revised estimates of CMB $B$-mode polarization induced by patchy reionization
Creators: name: Roy, Anirban
name: Kulkarni, Girish
name: Meerburg, P. Daniel
name: Challinor, Anthony
name: Baccigalupi, Carlo
name: Lapi, Andrea
name: Haehnelt, Martin G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The search for primordial gravitational waves through the $B$-mode polarization pattern in the CMB is one of the major goals of current and future CMB experiments. Besides foregrounds, a potential hurdle in this search is the anisotropic secondary $B$-mode polarization generated by the scattering of CMB photons off free electrons produced during patchy cosmological reionization. Robust predictions of these secondary anisotropies are challenging because of uncertainties in the reionization history. In this paper, we revise estimates of the reionization-induced $B$-mode signal by incorporating recent advances in the understanding of reionization through observations of the Lyman-$α$ forest. To derive these $B$-mode estimates, we use high-dynamic-range radiative transfer simulations of reionization that are calibrated to the Ly$α$ data. These simulations are also consistent with a variety of other high-redshift observations. We find that around multipoles $\ell\approx 100$, reionization induces $B$-mode power with $\ell(\ell+1)C_\ell^{BB}/2π\approx 4\times 10^{-6}\,μ$K$^2$. This secondary signal is thus at the level of the primordial signal with the tensor-to-scalar ratio $r<10^{-4}$, and can increase by a factor of $\sim 50$ if reionization is sourced by highly clustered sources residing in haloes with mass of $\sim 10^{11}$ M$_\odot$. Our findings suggest that the contribution of patchy reionization to the search for primordial gravitational waves is unlikely to be a concern for currently planned CMB experiments.
description: Published in JCAP
Rain Path
Creators: name: James, Gray
Publisher: name: The University of British Columbia
Year: 2024

description: Vancouver has a reputation as a city with a strong connection to nature, but much of the city sacrifices this connection for the sake of efficiency. This sense of connection is vitally important, in the words of Nancy Turner “...we need to be able to weave ourselves into the matrix of our world” (Turner 38). Rain defines Vancouver but the city is built as if rain is foreign, storm drains channel water efficiently and discreetly underground. Shortly after hitting the ground the rain is made to disappear. Rain is treated as a problem. This project seeks to determine how the breakdown of infrastructure can become an opportunity for rain to go on a journey.
Proposição de critérios de indexação de uma base de dados em direito
Creators: name: de Araújo, Paula Carina
name: Costa Rodrigues de Lima, Karolayne
name: Shintaku, Milton
Publisher: name: Zenodo
Year: 2024

description: Apresentação realizada na sessão “O meu Póster em 1 minuto”, da 15ª Conferência Lusófona de Ciência Aberta, na Escola Superior de Enfermagem do Porto (ESEP), de 01 a 04 de outubro de 2024.
Remark on the core/halo model of Bose-Einstein correlations in multiple particle production processes
Creators: name: Zalewski, K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The core/halo model describes the Bose-Einstein correlations in multihadron production taking into account the effects of long-lived resonances. The model contains the combinatorial coefficients alpha_j which were originally calculated from a recurrence relation. We show that alpha_j is the integer nearest to j!/e.
description: 4 pages, Latex, no figures, to be published in Acta Phys. Pol. B
Highly-Efficient Single-Switch-Regulated Resonant Wireless Power Receiver with Hybrid Modulation
Creators: name: Li, Kerui
name: Lee, Albert Ting Leung
name: Tan, Siew-Chong
name: Hui, Ron Shu Yuen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, a highly-efficient single-switch-regulated resonant wireless power receiver with hybrid modulation is proposed. To achieve both high efficiency and good output voltage regulation, phase shift and pulse width hybrid modulation are simultaneously applied. The soft switching operation in this topology is achieved by the cycle-by-cycle phase shift adjustment between the input current and the gate drive signal and also attributed to the reactive components such as the series-compensated secondary coil and the parasitic capacitor of the active switch . The soft switching operation also leads to high efficiency and low EMI. By adjusting the duty ratio of the switch, tight regulation of the output voltage can be attained. The steady-state and dynamic models of the resonant receiver with hybrid modulation are analytically derived in order to properly design the feedback controller. An experimental setup of a two-coil wireless power transfer system, including the hardware prototype of the proposed receiver, is constructed for experimental verification. The experimental results show the effectiveness of the soft-switching operation in the receiver with high efficiency while maintaining good regulation of the output voltage, regardless of line and load variations.
description: in IEEE Journal of Emerging and Selected Topics in Power Electronics. 2020
Plinthaster dentatus
Creators: name: Jangoux, Michel
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Asteroidea
Valvatida
Goniasteridae
Plinthaster
Plinthaster dentatus

description: dentatus Perrier, 1884, Pentagonaster
Pentagonaster dentatus Perrier, 1884: 242, pl. 8, fig. 3.
Plinthaster dentatus ‒ Clark & Downey 1992: 260.
CURRENT STATUS. — Plinthaster dentatus (Perrier, 1884).
TYPE MATERIAL. — Porto Rico • 1 paratype; Morro Casilo (Morro Ligth); BLAKE expedition; 1878-1879; MNHN-IE-2014-69.
REMARK
Holotype in the MCZ (MCZ 408) (Clark & Downey 1992).
description: Published as part of Jangoux, Michel, 2022, The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris, pp. 259-334 in Zoosystema 44 (11) on page 280, DOI: 10.5252/zoosystema2022v44a11, http://zenodo.org/record/6616817
Revival of Non-Abelian Monopoles and Confinement in QCD
Creators: name: Konishi, K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Central role played by certain non-Abelian monopoles (of Goddard-Nuyts-Olive-Weinberg type) in the infrared dynamics in many confining vacua of softly broken ${\cal N}=2$ supersymmetric gauge theories, has recently been clarified. We discuss here the main lessons to be learned from these studies for the confinement nechanism in QCD.
description: 3 pages, Latex with appolb.cls, Contribution to Festschrift in honor of Jan Kwiecinski
oral cancer 2019 -1.pdf
Creators: name: Kumar, Anand
Publisher: name: figshare
Year: 2020
Subjects: subject: 110599 Dentistry not elsewhere classified
subject: FOS: Clinical medicine

description: In the digital era of the 21st century, where computer and humans are working together in almost every fields. In this era, oral cancer and its morbidity with one of the highest mortality rates among all other malignancies is also increasing day by day, hour by hour, and minute to minute.
Decoupling the rotation of stars and gas -- II: the link between black hole activity and MaNGA kinematics in TNG
Creators: name: Duckworth, Christopher
name: Starkenburg, Tjitske K.
name: Genel, Shy
name: Davis, Timothy
name: Habouzit, Melanie
name: Kraljic, Katarina
name: Tojeiro, Rita
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the relationship between supermassive black hole (BH) feedback, BH luminosity and the kinematics of stars and gas for galaxies in IllustrisTNG. We use a sample of galaxies with mock MaNGA observations to identify kinematic misalignment at $z=0$ (difference in rotation of stars and gas), for which we follow the evolutionary history of BH activity and gas properties over the last 8 Gyrs. Misaligned low mass galaxies typically have boosted BH luminosity, BH growth and have had more energy injected into the gas over the last 8 Gyr in comparison to aligned galaxies. These properties likely lead to outflows and gas loss, in agreement with active low mass galaxies in observations. We show that splitting on BH luminosity at $z=0$ produces statistically consistent distributions of kinematic misalignment at $z=0$, however, splitting on the maximum BH luminosity over the last 8 Gyrs does not. While instantaneous correlation at $z=0$ is difficult due to misalignment persisting on longer timescales, the relationship between BH activity and misalignment is clear. High mass quenched galaxies with misalignment typically have similar BH luminosities, show no overall gas loss, and have typically lower gas phase metallicity over the last 8 Gyrs in comparison to those aligned; suggesting external origin.
description: 5 pages, 3 Figures, Submitted to MNRAS letters. For first paper in series, see arXiv:1910.10744
Three-Dimensional Solitary Waves and Vortices in a Discrete Nonlinear Schr{ö}dinger Lattice
Creators: name: Kevrekidis, P. G.
name: Malomed, B. A.
name: Frantzeskakis, D. J.
name: Carretero-González, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In a benchmark dynamical-lattice model in three dimensions, the discrete nonlinear Schr{ö}dinger equation, we find discrete vortex solitons with various values of the topological charge $S$. Stability regions for the vortices with $S=0,1,3$ are investigated. The S=2 vortex is unstable, spontaneously rearranging into a stable one with S=3. In a two-component extension of the model, we find a novel class of stable structures, consisting of vortices in the different components, perpendicularly oriented to each other. Self-localized states of the proposed types can be observed experimentally in Bose-Einstein condensates trapped in optical lattices, and in photonic crystals built of microresonators.
description: 4 pages, 5 figures. To appear in Phys. Rev. Lett. (2004)
Eigenvalue continuity and Geršgorin's theorem
Creators: name: Li, Chi-Kwong
name: Zhang, Fuzhen
Publisher: name: arXiv
Year: 2019
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: Two types of eigenvalue continuity are commonly used in the literature. However, their meanings and the conditions under which continuities are used are not always stated clearly. This can lead to some confusion and needs to be addressed. In this note, we revisit the Geršgorin disk theorem and clarify the issue concerning the proofs of the theorem by continuity.
Rhabdepyris quinquilineatus , Kieffer 1906
Creators: name: Stein, P. R. W.
name: Azevedo, C. O.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Bethylidae
Rhabdepyris
Rhabdepyris quinquilineatus

description: Rhabdepyris quinquilineatus Kieffer, 1906
(Fig. 35–36)
 Rhabdepyris quinquilineatus Kieffer, 1906: 248, 249; Kieffer, 1908: 32; Kieffer, 1914: 348, 360; Evans, 1964: 95; Evans, 1965: 114, 116, 117, 123–125; Evans, 1967: 95; Gordh & Móczár, 1990: 152.
This species was known from Mexico and El Salvador. Here, it is recorded for the first time from Guatemala, Nicaragua, Trinidad and Brazil (Pará). In this series, mandible with four apical teeth, uppermost tooth larger than subupper; frontal angle of ocellar triangle acute, right or obtuse; temple divergent; lower fovea of mesopleuron with upper median margin wholly outlined; paramere with apex wide or sometimes narrow, dorsal margin concave.
 The mandible of the types series has five teeth, but all specimens here analized have one tooth less (Fig. 35). This intraspeficic variation is not very frequent within bethylid species. We have seen this in few species of Apenesia Westwood, 1874 (unpublished data) and in R. luteipennis.
 Material examined. GUATEMALA, D[e]p[artamen]to Zacapa, 1 male, 8 km E El Rancho, 14 o 55'N 89 o 57'W, 350 m, 28–29.V.1997, M[alaise] t[rap], MEIrwin, MAMetz, SDGaimari, KCHolston, SWenterton, L. L. Yang col. (UCDC). NICARAGUA, Masaya, 1 male, Las Flores, 1.VIII.1994, Mal [aise] trap, J. M. Maes col. (SEAN); Granada, Volcan Mombacho, Mal [aise] trap, J. M. Maes col. (SEAN), El Progresso 1, 3 males, 16.III.1998, 2 males, 2.VI.1998, 5 males, 30.VI.1998; El Progresso 2, 2 males, 31.III.1998, 2 males, 21.VI.1998; El Progresso 3, 2 males, 31.III.1998, 4 males, 15.IV.1998, 9 males, 30.IV.1998, 50 males, 15.V.1998; San Joaquim 1, 1 male, 16.III.1998, 6 males, 31.III.1998; San Joaquim 2, 2 males, 16.III.1998, 3 males, 15.IV.1998, 2 males, 30.IV.1998, 11 males, 15.V.1998; San Joaquim 3, 3 males, 30.IV.1998, 9 males, 15.V.1998, 6 males, 21.VI.1998; Santa Ana 1, 8 males, 15.V.1998, 21 males, 2.VI.1998, 3 males, 30.VII.1998; Santa Ana 2, 1 male, 31.III.1998, 15 males, 15.V.1998, 6 males, 21.VI.1998, 7 males, 30.VI.1998, 7 males, 15.VII.1998; Santa Ana 3, 1 male, 16.III.1998, 12 males, 15.V.1998; 3 males, no locality and date; [Rivas], San Juan del Sur, 11 o 15'N 85 o 52'W, M[alaise] t[rap], L. J. Clark col. (UCDC), 2 males, 29.II.1998, 4 males, 10.III.1998, 13 males, 15.IV.1998, 6 males, 3.V.1998. TRINIDAD, [Saint George], Curepe, M [alaise] t[rap], Maison col. (CNCI), 2 males, 29.XII.1977, 1 male, 17.XII.1978; Simla n[ea]r Arima, 250 m, rain for[est], 25.XII–31.XII.1997, W. R. M. Mason col. (CNCI); BRAZIL, Pará, São João Pirabas, Japerica, 20– 22.XII.1992, Malaise trap, J. dias col. (MPEG).
description: Published as part of Stein, P. R. W. & Azevedo, C. O., 2007, Synopsis of lobatifrons species-group (Hymenoptera: Bethylidae, Rhabdepyris) from Neotropical region, with redefinition of the group, pp. 23-34 in Zootaxa 1444 (1) on page 32, DOI: 10.11646/zootaxa.1444.1.2, http://zenodo.org/record/5077215
The gauge symmetries of f(R) gravity with torsion in the Cartan formalism
Creators: name: Montesinos, Merced
name: Romero, Rodrigo
name: Gonzalez, Diego
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: First-order general relativity in $n$ dimensions ($n \geq 3$) has an internal gauge symmetry that is the higher-dimensional generalization of three-dimensional local translations. We report the extension of this symmetry for $n$-dimensional f(R) gravity with torsion in the Cartan formalism. The new symmetry arises from the direct application of the converse of Noether's second theorem to the action principle of f(R) gravity with torsion. We show that infinitesimal diffeomorphisms can be written as a linear combination of the new internal gauge symmetry, local Lorentz transformations, and terms proportional to the variational derivatives of the f(R) action. It means that the new internal symmetry together with local Lorentz transformations can be used to describe the full gauge symmetry of f(R) gravity with torsion, and thus diffeomorphisms become a derived symmetry in this setting.
description: It contains a detailed derivation of the generalization of 3-dimensional "local translations" for 4-dimensional first-order general relativity
Simultaneous magnetic polar cap heating during a flaring episode from the magnetar 1RXS J170849.0-400910
Creators: name: Younes, George
name: Baring, Matthew G.
name: Kouveliotou, Chryssa
name: Wadiasingh, Zorawar
name: Huppenkothen, Daniela
name: Harding, Alice K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: During a pointed 2018 NuSTAR observation, we detected a flare with a 2.2 hour duration from the magnetar 1RXS J170849.0$-$400910. The flare, which rose in $\sim25$ seconds to a maximum flux 6 times larger than the persistent emission, is highly pulsed with an rms pulsed fraction of $53\%$. The pulse profile shape consists of two peaks separated by half a rotational cycle, with a peak flux ratio of $\sim$2. The flare spectrum is thermal with an average temperature of 2.1 keV. Phase resolved spectroscopy show that the two peaks possess the same temperature, but differ in size. These observational results along with simple light curve modeling indicate that two identical antipodal spots, likely the magnetic poles, are heated simultaneously at the onset of the flare and for its full duration. Hence, the origin of the flare has to be connected to the global dipolar structure of the magnetar. This might best be achieved externally, via twists to closed magnetospheric dipolar field lines seeding bombardment of polar footpoint locales with energetic pairs. Approximately 1.86 hours following the onset of the flare, a short burst with its own 3-minute thermal tail occurred. The burst tail is also pulsating at the spin period of the source and phase-aligned with the flare profile, implying an intimate connection between the two phenomena. The burst may have been caused by a magnetic reconnection event in the same twisted dipolar field lines anchored to the surface hot spots, with subsequent return currents supplying extra heat to these polar caps.
description: Accepted for publication in the Astrophysical Journal Letters
Tangled Roots | (Un)Tangled Coast : Reviving Mumbai’s Mangrove Ecosystem for Coastal Resilience
Creators: name: Misra, Shruti
Publisher: name: The University of British Columbia
Year: 2024

description: This thesis seeks to redefine the conventional notion of coastal defense by transcending traditional engineering solutions to embrace a holistic, nature-based approach. Central to this vision is the re-introduction and restoration of mangrove ecosystems at Mahim Bay, Mumbai. This interweaving of land and water will create diverse ecological edge conditions while making mangroves accessible to the public to provide dynamic experiences while impacting the ecosystem as little as possible.
Travel Time Cognition: Exploring the Impacts of Travel Information Provision Strategies
Creators: name: Khademi, Navid
name: Saedi, Ramin
Publisher: name: figshare
Year: 2020
Subjects: subject: 120506 Transport Planning
subject: FOS: Social and economic geography
subject: 140217 Transport Economics
subject: FOS: Economics and business
subject: 90507 Transport Engineering
subject: FOS: Civil engineering

description: This paper is derived from one of our research mainstream, research theme: TRAFFIC & TRANSPORTATION PSYCHOLOGY ; TRAVEL PSYCHOLOGY 
A Constraint on Electromagnetic Acceleration of Highest Energy Cosmic Rays
Creators: name: Medvedev, Mikhail V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The energetics of electromagnetic acceleration of ultra-high-energy cosmic rays (UHECRs) is constrained both by confinement of a particle within an acceleration site and by radiative energy losses of the particle in the confining magnetic fields. We demonstrate that the detection of ~ 3 x 10^{20} eV events is inconsistent with the hypothesis that compact cosmic accelerators with high magnetic fields can be the sources of UHECRs. This rules out the most popular candidates, namely spinning neutron stars, active galactic nuclei (AGNs), and gamma-ray burst blast waves. Galaxy clusters and, perhaps, AGN radio lobes remain the only possible (although not very strong) candidates for UHECR acceleration sites. Our analysis places no limit on linear accelerators. With the data from the future Auger experiment one should be able to answer whether a conventional theory works or some new physics is required to explain the origin of UHECRs.
description: 5 pages, 2 figures. Accepted for publication in PRE
Moment Density of Zipoy's Dipole Solution
Creators: name: Fernandez-Jambrina, L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Zipoy used spheroidal coordinates to construct a family of static axisymmetric gravitational fields included in Weyl's class. We calculate the mass moment source for the dipole solution using techniques previously developed for magnetic and angular momentum densities and compare it with the Newtonian analog studied by Bonnor and Sackfield.
description: 10 pages, LaTeX 2.09
Extremal elements of a sublattice of the majorization lattice and approximate majorization
Creators: name: Massri, César
name: Bellomo, Guido
name: Holik, Federico
name: Bosyk, Gustavo M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Given a probability vector $x$ with its components sorted in non-increasing order, we consider the closed ball ${\mathcal{B}}^p_ε(x)$ with $p \geq 1$ formed by the probability vectors whose $\ell^p$-norm distance to the center $x$ is less than or equal to a radius $ε$. Here, we provide an order-theoretic characterization of these balls by using the majorization partial order. Unlike the case $p=1$ previously discussed in the literature, we find that the extremal probability vectors, in general, do not exist for the closed balls ${\mathcal{B}}^p_ε(x)$ with $1
description: 26 pages, 1 figure
Gomophia egyptiaca subsp. egyptiaca Gray 1840
Creators: name: Jangoux, Michel
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Asteroidea
Valvatida
Ophidiasteridae
Gomophia
Gomophia egyptiaca
Gomophia egyptiaca egyptiaca gray, 1840

description: desjardinsi Michelin, 1845, Oreaster
Oreaster desjardinsi Michelin, 1845: 23, pl. 11.
Gomophia egyptiaca egyptiaca ‒ Clark 1993: 433.
CURRENT STATUS. — Gomophia egyptiaca egyptiaca Gray, 1840.
TYPE MATERIAL. — Mauritius • holotype; Michelin leg.; MNHN- IE-2014-52.
description: Published as part of Jangoux, Michel, 2022, The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris, pp. 259-334 in Zoosystema 44 (11) on page 280, DOI: 10.5252/zoosystema2022v44a11, http://zenodo.org/record/6616817
Cross Connections: Online Activism, Real World Outcomes
Creators: name: Benson, Tracey
Publisher: name: The Australian National University
Year: 2010
Subjects: Internet
World Wide Web
Accessibility
Activism
Social Relations
Social Justice
Hacktivists
Online
Hackers
Identity
Net Activism
Tactical Media
Web Design
Virtuality
Virtual Communities
Refugee
Borders
Alienation
Censorship
Blogging
Mass Media
Copy-left
Open Source Publishing
Produser
Indymedia
Net Arts
Digital Archives
You Tube
Facebook
Social Networking
Digital Aesthetics

description: This research paper examines the role of the Internet as it relates to the development of social movements and political protest in the ‘physical’ world. It also analyses the role of independent media and reporting methodologies used by activists and net-artists. The emergence of online activism and an emphasis on collaboration, information sharing and open source tools also had a significant impact on new media arts discussions and aesthetics. The refugee activist movement in Australia is a key case study in this thesis, as it is an excellent example of how activists have used the Internet and WWW to garner support within the community and to engage people to come to protests. In addition, activists at the protests have reported these events on the WWW and this subject has also had a resounding impact within the context of contemporary and media arts. The implications of identity online is a major factor in constructing the arguments in this thesis, as the relationship between ‘real’ and ‘virtual’ space is explored in detail as it relates to personal identity and online community.
Origin of Non-axisymmetric Features of Virgo Cluster Early-type Dwarf Galaxies. II. Tidal Effects on Disk Features and Stability
Creators: name: Kwak, SungWon
name: Kim, Woong-Tae
name: Rey, Soo-Chang
name: Quinn, Thomas R.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A fraction of dwarf galaxies in the Virgo cluster contain disk features like bars and spiral arms. Using $N$-body simulations, we investigate the effects of tidal forces on the formation of such disk features in disk dwarf galaxies resembling VCC856. We consider 8 Cluster-Galaxy models in which disk dwarf galaxies with differing pericenter distance and spin orientation experience the tidal gravitational force of a Virgo-like NFW halo, and additional 8 Galaxy-Galaxy models in which two dwarf galaxies undergo tidal interactions with different strength. We find that the cluster tidal effect is moderate due to the small galaxy size, making the bars form earlier by $\sim1$--$1.5\Gyr$ compared to the cases in isolation. While the galactic halos significantly lose their mass within the virial radius due to the cluster tidal force, the mass of the stellar disks is nearly unchanged, suggesting that the inner regions of a disk-halo system is secured from the tidal force. The tidal forcing from either the cluster potential or a companion galaxy triggers the formation of two-armed spirals at early time before a bar develops. The tidally-driven arms decay and wind with time, suggesting that they are kinematic density waves. In terms of the strength and pitch angle, the faint arms in VCC856 are best matched with the arms in a marginally unstable galaxy produced by a distant tidal encounter with its neighbor $\sim0.85\Gyr$ ago.
description: Accepted for publication in the ApJ
On overspinning of black holes in higher dimensions
Creators: name: Shaymatov, Sanjar
name: Dadhich, Naresh
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It turns out that repulsive effect due to rotation of a rotating black hole dominates over attraction due to mass for large $r$ in dimensions $>5$. This gives rise to a remarkable result that black hole in these higher dimensions in contrast to lower dimensional ones cannot be overspun even under linear test particle accretion. Further if a black hole in dimension $>4$ has one of its rotation parameters zero, it has only one horizon and hence it can never be overspun. Thus rotating black holes in six and higher dimensions, and those with one rotation parameter switched off, would always obey the weak cosmic censorship conjecture (WCCC).
description: 7 pages, 2 figures; references added, minor changes made
Frontal Epidural Empyema as A Complication of Resolving Periorbital Cellulitis
Creators: name: Kamel, Usama
name: Faris, Callum
name: Ghaly, Ghaly A
name: Espeso, Angeles
Publisher: name: figshare
Year: 2020
Subjects: subject: 110315 Otorhinolaryngology
subject: FOS: Clinical medicine

description: Case report
Embedding Diagrams of the N=2 Superconformal Algebra under Spectral Flow
Creators: name: Klemm, Hanno
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The embedding diagrams of representations of the N=2 superconformal algebra with central charge c=3 are given. Some non-unitary representations possess subsingular vectors that are systematically described. The structure of the embedding diagrams is largely defined by the spectral flow symmetry. As an additional consistency check the action of the spectral flow on the characters is calculated.
description: 25 pages, LaTeX, 10 figures, examples and references added
A gradient-based framework for maximizing mixing in binary fluids
Creators: name: Eggl, Maximilian F.
name: Schmid, Peter J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Optimization and Control (math.OC)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A computational framework based on nonlinear direct-adjoint looping is presented for optimizing mixing strategies for binary fluid systems. The governing equations are the nonlinear Navier-Stokes equations, augmented by an evolution equation for a passive scalar, which are solved by a spectral Fourier-based method. The stirrers are embedded in the computational domain by a Brinkman-penalization technique, and shape and path gradients for the stirrers are computed from the adjoint solution. Four cases of increasing complexity are considered, which demonstrate the efficiency and effectiveness of the computational approach and algorithm. Significant improvements in mixing efficiency, within the externally imposed bounds, are achieved in all cases.
description: 23 pages, 55 figures
Diplodontias dilatatus
Creators: name: Jangoux, Michel
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Asteroidea
Valvatida
Odontasteridae
Diplodontias
Diplodontias dilatatus

description: dilatatus Perrier, 1875, Pentagonaster
Pentagonaster dilatatus Perrier, 1875: 217.
Diplodontias dilatatus ‒ Clark 1993: 182.
CURRENT STATUS. — Diplodontias dilatatus (Perrier, 1875).
TYPE MATERIAL. — New Zealand • 1 syntype; Stewart Island; Venus transit expedition; Filhol leg.; 1875; MNHN-IE-2014-477.
REMARK
One syntype in the NHM (Perrier 1875).
description: Published as part of Jangoux, Michel, 2022, The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris, pp. 259-334 in Zoosystema 44 (11) on page 280, DOI: 10.5252/zoosystema2022v44a11, http://zenodo.org/record/6616817
A Rare Presentation of Maternal H1N1 in the Second Trimester Resulting in Neonatal Cholestasis in a Twin Pregnancy
Creators: name: Lateefa Almutawea
name: Burshaid, Dalal
name: Abdula, Yosra
name: Eldessouky, Hala
Publisher: name: figshare
Year: 2021
Subjects: Medicine

description: case series about the relation of H1N1 during pregnancy on cholestasis
Latent learning and the formation of a spatiotemporal cognitive map of a road network
Creators: name: Khademi, Navid
name: Saedi, Ramin
Publisher: name: figshare
Year: 2020
Subjects: subject: 120506 Transport Planning
subject: FOS: Social and economic geography
subject: 140217 Transport Economics
subject: FOS: Economics and business
subject: 90507 Transport Engineering
subject: FOS: Civil engineering

description: This paper is derived from one of our research mainstream, research theme: TRAFFIC & TRANSPORTATION PSYCHOLOGY ; TRAVEL PSYCHOLOGY 
Patching the Pathway and Widening the Pipeline: Models for Developing a Diverse Early Childhood Workforce in Chicago
Creators: name: Zinsser, Katherine
name: Main, Catherine
name: L Torres
name: K Connor
Publisher: name: University of Illinois at Chicago
Year: 2021
Subjects: Uncategorized

description: With the growing appreciation of the importance of early learning experiences for children's healthy development, attention to the cultivation and maintenance of a qualified workforce has steadily increased. Such a workforce must have not just the knowledge and skills related to child development and early learning, but also be linguistically and culturally prepared to meet the needs of an increasingly diverse child and family population. To ensure a highly qualified workforce, programs and policymakers must attend to both the “pipeline” through which new early childhood educators (ECEs) enter the workforce and the “pathways” by which ECEs work toward and obtain the necessary education and credentials for different roles within the field. In line with the aims of this special issue, this paper leverages the first-person account style to describe barriers to and creative solutions for the development of practitioners in low-resourced communities in Chicago, with the goal of informing practice and policy. We describe three prior and ongoing partnership programs between community-based organizations and institutions of higher education, each tailored to support a unique population in the ECE pipeline on the pathway for increased educational attainment and credentialing. Each program is grounded in a specific community of Chicago, a diverse city with a sizable population of children raised in non-English speaking homes. Each program addresses specific needs of the communities they serve, especially around the recruitment, retention, and promotion of bilingual ECEs. Program administrators and community members describe each programs’ goals, development, and key components unique to their target population as well as key takeaways. We conclude with an overview of critical components that we identified across these programs in order to create pathways for change within the workforce and the communities they serve.
High energy cosmic ray particles and the most powerful new type discharges in thunderstorm atmosphere
Creators: name: Gurevich, A. V.
name: Zybin, K. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The runaway breakdown -- extensive atmospheric shower discharge (RB - EAS) excited in thunderstorm atmosphere by high energy cosmic ray particles ($ε_p>10^{17} - 10^{19}$ eV) generate very powerful radio pulse. The RB - EAS theory is compared with observations of radio pulses. An agreement between the theory and experiment is established. The existence of nowaday satellite and ground based systems which obtain regularly a large amount of observational radio data could allow to use them in combination with other methods for effective study of high energy cosmic ray particles
Reactive Fluid Ferroelectrics: A Gateway to the Next Generation of Ferroelectric Liquid Crystalline Polymer Networks
Creators: name: Berrow, Stuart R
name: Hobbs, Jordan
name: Gibb, Calum J
Publisher: name: arXiv
Year: 2025
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Herein we report the first examples of reactive mesogenic materials (RMs) which exhibit fluid ferroelectric order based on the recently discovered ferroelectric nematic (NF) phase. We term these materials NF RMs and they provide the first steps towards the next generation of ferroelectric liquid crystalline polymer networks. We report the chemical synthesis and characterisation of the liquid crystalline properties of these materials, demonstrating that they have the lowest longitudinal molecular dipole moments of any reported NF material of 7.39 D. We go on to demonstrate a potential use case of this new class of reactive material through the polymer stabilisation of a matrix which exhibits the NF phase, increasing the phase range of the ferroelectric phase from 75 °C to 120 °C. The NF RMs reported herein are an exciting step forward in ferroelectric liquid crystal research, demonstrating that reactive NF materials are achievable, allowing for the future development of liquid crystalline ferroelectric networks, elastomers and polymers.
Culcita schmideliana
Creators: name: Jangoux, Michel
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Asteroidea
Valvatida
Oreasteridae
Culcita
Culcita schmideliana

description: * discoidea, Lamarck, 1816, Asterias
Asterias discoidea Lamarck, 1816: 554.
Culcita schmideliana ‒ Clark 1993: 298.
CURRENT STATUS. — Culcita schmideliana (Bruzelius, 1805).
REMARKS
Original drawings of A. discoidea syntype are presented in Jangoux (2021: 227, fig. 13).
description: Published as part of Jangoux, Michel, 2022, The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris, pp. 259-334 in Zoosystema 44 (11) on page 280, DOI: 10.5252/zoosystema2022v44a11, http://zenodo.org/record/6616817
Weak crystallization of fluctuating skyrmion textures in MnSi
Creators: name: Kindervater, J.
name: Stasinopoulos, I.
name: Bauer, A.
name: Haslbeck, F. X.
name: Rucker, F.
name: Chacon, A.
name: Mühlbauer, S.
name: Franz, C.
name: Garst, M.
name: Grundler, D.
name: Pfleiderer, C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report an experimental study of the emergence of non-trivial topological winding and long-range order across the paramagnetic to skyrmion lattice transition in the transition metal helimagnet MnSi. Combining measurements of the susceptibility with small angle neutron scattering, neutron resonance spin echo spectroscopy and all-electrical microwave spectroscopy, we find evidence of skyrmion textures in the paramagnetic state exceeding $10^3$Åwith lifetimes above several 10$^{-9}$s. Our experimental findings establish that the paramagnetic to skyrmion lattice transition in MnSi is well-described by the Landau soft-mode mechanism of weak crystallization, originally proposed in the context of the liquid to crystal transition. As a key aspect of this theoretical model, the modulation-vectors of periodic small amplitude components of the magnetization form triangles that add to zero. In excellent agreement with our experimental findings, these triangles of the modulation-vectors entail the presence of the non-trivial topological winding of skyrmions already in the paramagnetic state of MnSi when approaching the skyrmion lattice transition.
Wonderland
Creators: name: Wang, Michelle
Publisher: name: The University of British Columbia
Year: 2024

description: Architectural renderings oftentimes craft utopian narratives that only exist in a condition of immateriality. The name ‘wonderland’ comes from this observation in which the render may first portray the image of a fantastical, ideal world that parallels the real one, however, upon closer inspection the realm created in these images are much more eerie and uncanny than initial impressions let on, and perhaps also a bit non-sensical.
Steady Euler flows on the 3-sphere and other Sasakian 3-manifolds
Creators: name: Slobodeanu, Radu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We present new steady Euler solutions on the (round) 3-sphere, that bifurcate from an ansatz proposed by Khesin, Kuksin and Peralta-Salas, showing that these previously known solutions are not isolated. We also extend this ansatz to any Sasakian 3-manifold, such as the Heisenberg group and $SL(2, \mathbb{R})$.
description: 12 pages. Improved presentation. Matches published version
Fractional differential equations of a reaction-diffusion SIR model involving the Caputo-fractional time-derivative and a nonlinear diffusion operator
Creators: name: Zinihi, Achraf
name: Ammi, Moulay Rchid Sidi
name: Torres, Delfim F. M.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Optimization and Control (math.OC)
subject: Analysis of PDEs (math.AP)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Mathematics
subject: FOS: Biological sciences
subject: 26A33, 49J20, 47J05, 34K37, 65D15

description: The main aim of this study is to analyze a fractional parabolic SIR epidemic model of a reaction-diffusion, by using the nonlocal Caputo fractional time-fractional derivative and employing the $p$-Laplacian operator. The immunity is imposed through the vaccination program, which is regarded as a control variable. Finding the optimal control pair that reduces the number of sick people, the associated vaccination, and treatment expenses across a constrained time and space is our main study. The existence and uniqueness of the nonnegative solution for the spatiotemporal SIR model are established. It is also demonstrated that an optimal control exists. In addition, we obtain a description of the optimal control in terms of state and adjoint functions. Then, the optimality system is resolved by a discrete iterative scheme that converges after an appropriate test, similar to the forward-backward sweep method. Finally, numerical approximations are given to show the effectiveness of the proposed control program, which provides meaningful results using different values of the fractional order and $p$, respectively the order of the Caputo derivative and the $p$-Laplacian operators.
description: This is a preprint of a paper whose final and definite form is published in 'Evolution Equations and Control Theory' at [http://dx.doi.org/10.3934/eect.2025018]
X-ray Fluctuation Power Spectral Densities of Seyfert 1 Galaxies
Creators: name: Markowitz, A.
name: Edelson, R.
name: Vaughan, S.
name: Uttley, P.
name: George, I. M.
name: Griffiths, R. E.
name: Kaspi, S.
name: Lawrence, A.
name: McHardy, I.
name: Nandra, K.
name: Pounds, K.
name: Reeves, J.
name: Schurch, N.
name: Warwick, R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: By combining complementary monitoring observations spanning long, medium and short time scales, we have constructed power spectral densities (PSDs) of six Seyfert~1 galaxies. These PSDs span $\gtrsim$4 orders of magnitude in temporal frequency, sampling variations on time scales ranging from tens of minutes to over a year. In at least four cases, the PSD shows a "break," a significant departure from a power law, typically on time scales of order a few days. This is similar to the behavior of Galactic X-ray binaries (XRBs), lower mass compact systems with breaks on time scales of seconds. NGC 3783 shows tentative evidence for a doubly-broken power law, a feature that until now has only been seen in the (much better-defined) PSDs of low-state XRBs. It is also interesting that (when one previously-observed object is added to make a small sample of seven), an apparently significant correlation is seen between the break time scale $T$ and the putative black hole mass $M_{\rm BH}$, while none is seen between break time scale and luminosity. The data are consistent with the linear relation $ T = M_{\rm BH}/10^{6.5} \Msun$; extrapolation over 6--7 orders of magnitude is in reasonable agreement with XRBs. All of this strengthens the case for a physical similarity between Seyfert~1s and XRBs.
description: 27 pages, 13 figures. Accepted for publication in ApJ. Typo corrected