cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Intermediate computer use : a survey of the nature and extent of computer use in intermediate classrooms in British Columbia
Creators: name: Beairsto, James Atley Bruce
Publisher: name: University of British Columbia
Year: 2010

description: The use of computers at all levels in the educational system in British Columbia has been expanding rapidly despite a noticeable lack of provincial direction and support. With increasing funding this expansion can be expected to continue and even to accelerate. As computer-based instruction becomes more prevalent the need for programs of in-service training becomes increasingly important. This study reports the results of a survey of the nature and extent of computer use in intermediate classrooms in British Columbia. It was conducted to collect the descriptive baseline data necessary to design an in-service program. The study also examines the educational motivations for computer-based instruction cited by teachers. Data was collected using a province-wide mail questionnaire distributed in December 1985 and a series of telephone interviews in April, May and June of 1986. The results indicate that: a) There is great diversity in the availablity of hardware and software across the province. b) There is great diversity in the experience and training level of teachers across the province. c) In general, computer access is severely limited. d) In general, intermediate teachers have minimal training in the educational use of computers. In general, intermediate teachers have very limited experience with computers. The most widely used programs in intermediate classrooms are Bank Street Writer, Logo, typing training programs, mathematics programs and various materials from the Minnesota Educational Computing Consortium (MECC). The respondents ranked computer-based strategies superior to traditional strategies in teaching language arts and problem solving. The educational motivations cited by the respondents fell into seven major categories characterized, in descending order of frequency of citation, by the following key words: utility, interest, literacy, drill, enrichment, reinforcement and individualization. There is little evidence of any developmental pattern, associated with an increase in experience, in the educational motivations for computer use cited by the respondents. The correlations which do exist indicate that with increased training and increased length of time using computer-based instructional strategies teachers tend to devalue the objectives of promoting computer literacy and inflate the objectives of reinforcing traditional instruction, individualizing instruction and using the computer as a productivity tool for text editing.
Additional file 2 of Facilitators of and obstacles to practitioners’ adoption of harm reduction in cannabis use: a scoping review
Creators: name: Haddad, Roula
name: Dagenais, Christian
name: Fallu, Jean-Sébastien
name: Huỳnh, Christophe
name: D’Arcy, Laurence
name: Hot, Aurélie
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 2
Device Model for Graphene Nanoribbon Phototransistor
Creators: name: Ryzhii, Victor
name: Mitin, Vladimir
name: Ryzhii, Maxim
name: Ryabova, Nadezhda
name: Otsuji, Taiichi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An analytical device model for a graphene nanoribbon phototransistor (GNR-PT) is presented. GNR-PT is based on an array of graphene nanoribbons with the side source and drain contacts, which is sandwiched between the highly conducting substrate and the top gate. Using the developed model, we derive the explicit analytical relationships for the source-drain current as a function of the intensity and frequency of the incident radiation and find the detector responsivity. It is shown that GNR-PTs can be rather effective photodetectors in infrared and terahertz ranges of spectrum.
description: 4 pages 2 figures
Simulating polarized Galactic synchrotron emission at all frequencies, the Hammurabi code
Creators: name: Waelkens, A.
name: Jaffe, T.
name: Reinecke, M.
name: Kitaura, F. S.
name: Ensslin, T. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a publicly available code called Hammurabi for generating mock polarized observations of Galactic synchrotron emission for telescopes like LOFAR, SKA, Planck and WMAP, based on model inputs for the Galactic magnetic field (GMF), the cosmic-ray density distribution and the thermal electron density. We also present mock UHECR deflection measure (UDM) maps based on model inputs for the GMF. In future, when UHECR sources are identified, this will allow us to define UDM as a GMF probe in a similar way as polarized radio sources permit us to define rotation measures. To demonstrate the code's abilities mock observations are compared to real data as a means to constrain the input parameters of our simulations with a focus on large-scale magnetic field properties. As expected, attempts at trying to model the synchrotron, UHECR deflection and RM input parameters, show that any additional observational data set greatly increases the constraints on the models. The hammurabi code addresses this by allowing to perform simulations of several different data sets simultaneously, providing the means for a more reliable constraint of the magnetized inter-stellar-medium.
description: Submitted to A&A (Numerical methods and codes section)
Acoustic plasmons in graphene sandwiched between two metallic slabs
Creators: name: Salasnich, Luca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the effect of two metallic slabs on the collective dynamics of electrons in graphene positioned between the two slabs. We show that if the slabs are perfect conductors the plasmons of graphene display a linear dispersion relation. The velocity of these acoustic plasmons crucially depends on the distance between the two metal gates and the graphene sheet. In the case of generic slabs, the dispersion relation of graphene plasmons is much more complicated but we find that acoustic plasmons can still be obtained under specific conditions.
description: 4 pages, no figures, to be published in the Special Issue "Symmetry in Many-Body Physics" of Symmetry
Additional file 2 of Solution-focused approaches for treating self-injurious thoughts and behaviours: a scoping review
Creators: name: Jerome, Lauren
name: Masood, Saba
name: Henden, John
name: Bird, Victoria
name: Ougrin, Dennis
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Science Policy
subject: Sociology
subject: FOS: Sociology

description: Additional File 2. Additional File 2_List of outcome studies_final.docx. List of studies reporting outcomes. Table providing a list of the studies reporting outcome data, with each outcome and its raw data.
Numerical study of a multiscale expansion of the Korteweg de Vries equation and Painlevé-II equation
Creators: name: Grava, T.
name: Klein, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The Cauchy problem for the Korteweg de Vries (KdV) equation with small dispersion of order $\e^2$, $\e\ll 1$, is characterized by the appearance of a zone of rapid modulated oscillations. These oscillations are approximately described by the elliptic solution of KdV where the amplitude, wave-number and frequency are not constant but evolve according to the Whitham equations. Whereas the difference between the KdV and the asymptotic solution decreases as $ε$ in the interior of the Whitham oscillatory zone, it is known to be only of order $ε^{1/3}$ near the leading edge of this zone. To obtain a more accurate description near the leading edge of the oscillatory zone we present a multiscale expansion of the solution of KdV in terms of the Hastings-McLeod solution of the Painlevé-II equation. We show numerically that the resulting multiscale solution approximates the KdV solution, in the small dispersion limit, to the order $ε^{2/3}$.
description: 20 pages, 14 figures
Proligands and their Re(I) and Ir(III) Complexes for Imaging and Therapeutic Applications
Creators: name: Humphreys, Lucy M.
Publisher: name: University of Leicester
Year: 2021
Subjects: Uncategorized

description: Rhenium(I) and iridium(III) complexes present attractive alternatives to traditional organic fluorophores used in biological imaging due to their preferable photophysical properties and biological compatibility and stability. However, these complexes can also be designed to be biologically active, making them ideal for use in theranostics. This thesis describes the synthesis of a number of Re(I) and Ir(III) complexes containing substituted pyridyl 1,2,3-triazole ligands, their photophysical properties and early exploration into manipulation of these complexes for biological activity.Cationic Re(I) complexes with electron withdrawing groups (EWGs) installed on the pyridyl-1,2,3-triazole ligands were synthesised with the aim of red-shifting the excitation profile into a more ideal range for confocal microscopy. The most successful of these was a nitrile substitution at the 4- position of the pyridyl ring, with ex = 366 nm and em = 596 nm; a 100 nm shift compared to the parent unsubstituted complex. Ir(III) complexes were also synthesised with the same EWGs on the pyridyl triazole ligands. Although a significant red shift was not achieved here, substitution with an amine gave rise to a lifetime of 441 ns and quantum yield of 18%, whilst substitution with an aldehyde presented a lifetime of 416 ns and quantum yield of 16%.Initial investigations into modification of these complexes presented a ‘switch-on/off’ luminescence for complexes in which the aldehyde was converted into an imine. The recovery of this luminescence on imine hydrolysis points to potential for use as biological probes in acidic environments such as cancer cells. A change in the photophysical profile of the Re(I) ethyl ester complex upon ester hydrolysis shows promise as a synthetic handle for coupling biologically relevant molecules and pH sensitivity. Finally, early results show that a pyridyl-triazole ligand with a 4-carboxylate substitution of the pyridyl ring presents inhibition of histone demethylase enzymes (KDM7A/B).
Radiometric force on a sphere in a rarefied gas flow based on the Cercignani-Lampis model of gas-surface interaction
Creators: name: Kalempa, Denize
name: Sharipov, Felix
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The radiometric force on a sphere due to its thermal polarization in a rarefied gas flow being in equilibrium is investigated on the basis of a kinetic model to the linearized Boltzmann equation. The scattering kernel proposed by Cercignani and Lampis to model the gas-surface interaction using two accommodation coefficients, namely the tangential momentum accommodation coefficient and the normal energy accommodation coefficient, is employed as the boundary condition. The radiometric force on the sphere, as well as the flow field of the gas around it, are calculated in a wide range of the gas rarefaction, defined as the ratio of the sphere radius to an equivalent free path of gaseous particles, covering the free molecular, transition and continuum regimes. The discrete velocity method is employed to solve the kinetic equation numerically. The calculations are carried out for values of accommodation coefficients considering most situations encountered in practice. To confirm the reliability of the calculations, the reciprocity relation between the cross phenomena is verified numerically within a numerical error of 0.1%. The temperature drop between two diametrically opposite points of the spherical surface in the direction of the gas flow stream, which characterizes the thermal polarization effect, is compared to experimental data for a spherical particle of Pyrex glass immersed in helium and argon gases.
description: 45 pages, 16 figures, 3 tables
Dilatation Operator and Space-time Geometry
Creators: name: Sochichiu, Corneliu
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the possibility of defining a dynamical model describing the RG-flow for a Quantum Field Theory. Construction of the dilatation operator is discussed in details for one-vertex one-loop level.
description: 6 pages. Contribution to 3d RTN Workshop "Constituents, fundamental forces and symmetries of the universe", Valencia, October 1-5, 2007
Dune formation on the present Mars
Creators: name: Parteli, Eric J. R.
name: Herrmann, Hans J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We apply a model for sand dunes to calculate formation of dunes on Mars under the present Martian atmospheric conditions. We find that different dune shapes as those imaged by Mars Global Surveyor could have been formed by the action of sand-moving winds occuring on today's Mars. Our calculations show, however, that Martian dunes could be only formed due to the higher efficiency of Martian winds in carrying grains into saltation. The model equations are solved to study saltation transport under different atmospheric conditions valid for Mars. We obtain an estimate for the wind speed and migration velocity of barchan dunes at different places on Mars. From comparison with the shape of bimodal sand dunes, we find an estimate for the timescale of the changes in Martian wind regimes.
description: 16 pages, 12 figures
Consensus, polarisation and coexistence in a continuous opinion dynamics model with quenched disorder
Creators: name: Baron, Joseph William
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: A general model of opinion dynamics is introduced in which each individual's opinion is measured on a bounded continuous spectrum. Each opinion is influenced heterogeneously by every other opinion in the population. It is demonstrated that consensus, polarisation and a spread of moderate opinions are all possible within this model. Using dynamic mean-field theory, we are able to identify the statistical features of the interactions between individuals that give rise to each of the aforementioned emergent phenomena. The nature of the transitions between each of the observed macroscopic states is also studied. It is demonstrated that heterogeneity of interactions between individuals can lead to polarisation, that mostly antagonistic or contrarian interactions can promote consensus at a moderate opinion, and that mostly reinforcing interactions encourage the majority to take an extreme opinion.
description: 13 pages, 8 figures
title: Die Lupe: Jahrgang 1, 1925, Nr. 6, 27. März 1925
Creators: name: :None
Publisher: name: Verlag Die Lupe
Year: 1925
Subjects: subject: Bestände des Stadtarchivs Braunschweig
subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Kunst- und Kulturgeschichte
subject: 7

description: Die Lupe: Braunschweigische Wochenschrift für Theater, Musik, Kunst, Literatur, Film und Kabarett, vol. 1, no. 6
Phase coherence and fragmentation in weakly interacting bosonic gases
Creators: name: Paraoanu, G. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a theory of measurement-induced interference for weakly interacting Bose-Einstein condensed (BEC) gases. The many-body state resulting from the evolution of an initial fragmented (Fock) state can be approximated as a continuous superposition of Gross-Pitaevskii (GP) states; the measurement breaks the initial phase symmetry, producing a distribution pattern corresponding to only one of the GP solutions. We discuss also analytically solvable models, such as two-mode on-chip adiabatic recombination and soliton generation in quasi one-dimensional condensates.
description: 5 pages
On the Impact of Knowledge-based Linguistic Annotations in the Quality of Scientific Embeddings
Creators: name: Garcia-Silva, Andres
name: Denaux, Ronald
name: Gomez-Perez, Jose Manuel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: In essence, embedding algorithms work by optimizing the distance between a word and its usual context in order to generate an embedding space that encodes the distributional representation of words. In addition to single words or word pieces, other features which result from the linguistic analysis of text, including lexical, grammatical and semantic information, can be used to improve the quality of embedding spaces. However, until now we did not have a precise understanding of the impact that such individual annotations and their possible combinations may have in the quality of the embeddings. In this paper, we conduct a comprehensive study on the use of explicit linguistic annotations to generate embeddings from a scientific corpus and quantify their impact in the resulting representations. Our results show how the effect of such annotations in the embeddings varies depending on the evaluation task. In general, we observe that learning embeddings using linguistic annotations contributes to achieve better evaluation results.
description: Accepted for publication in Future Generation Computer Systems
Constraints on CPT violation from WMAP three year polarization data: a wavelet analysis
Creators: name: Cabella, Paolo
name: Natoli, Paolo
name: Silk, Joseph
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We perform a wavelet analysis of the temperature and polarization maps of the Cosmic Microwave Background (CMB) delivered by the WMAP experiment in search for a parity violating signal. Such a signal could be seeded by new physics beyond the standard model, for which the Lorentz and CPT symmetries may not hold. Under these circumstances, the linear polarization direction of a CMB photon may get rotated during its cosmological journey, a phenomenon also called cosmological birefringence. Recently, Feng et al. have analyzed a subset the WMAP and BOOMERanG 2003 angular power spectra of the CMB, deriving a constraint that mildly favors a non zero rotation. By using wavelet transforms we set a tighter limit on the CMB photon rotation angle Δα= -2.5 \pm 3.0 (Δα= -2.5 \pm 6.0) at the one (two) σlevel, consistent with a null detection.
description: 7 pages, 4 figures, some modifications to match accepted (PRD) version, results unchanged
Structure of ultra-magnetised neutron stars
Creators: name: Chatterjee, Debarati
name: Novak, Jerome
name: Oertel, Micaela
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this review we discuss self-consistent methods to calculate the global structure of strongly magnetised neutron stars within the general-relativistic framework. We outline why solutions in spherical symmetry cannot be applied to strongly magnetised compact stars, and elaborate on a consistent formalism to compute rotating magnetised neutron star models. We also discuss an application of the above full numerical solution for studying the influence of strong magnetic fields on the radius and crust thickness of magnetars. The above technique is also applied to construct a "universal" magnetic field profile inside the neutron star, that may be useful for studies in nuclear physics. The methodology developed here is particularly useful to interpret multi-messenger astrophysical data of strongly magnetised neutron stars.
description: 15 pages, 13 figures
Torus n-Point Functions for $\mathbb{R}$-graded Vertex Operator Superalgebras and Continuous Fermion Orbifolds
Creators: name: Mason, Geoffrey
name: Tuite, Michael P.
name: Zuevsky, Alexander
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider genus one n-point functions for a vertex operator superalgebra with a real grading. We compute all n-point functions for rank one and rank two fermion vertex operator superalgebras. In the rank two fermion case, we obtain all orbifold n-point functions for a twisted module associated with a continuous automorphism generated by a Heisenberg bosonic state. The modular properties of these orbifold n-point functions are given and we describe a generalization of Fay's trisecant identity for elliptic functions.
description: 50 pages
Accusation Theory
Creators: name: Bergstra, Jan A.
name: Düwell, Marcus
Publisher: name: figshare
Year: 2021
Subjects: subject: Philosophy
subject: FOS: Philosophy, ethics and religion
subject: 220313 Philosophy of Language

description: Transmathematica archive. Please cite as:
J.A. Bergstra and M. Düwell, "Accusation Theory", Transmathematica, ISSN 2632-9212, pp 1-23, 1 January 2022, https://doi.org/10.36285/tm.61
Algebraic Birkhoff decomposition and its applications
Creators: name: Guo, Li
Publisher: name: arXiv
Year: 2008
Subjects: subject: Rings and Algebras (math.RA)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 11M41, 16W30, 16W99, 81T15

description: Central in the Hopf algebra approach to the renormalization of perturbative quantum field theory of Connes and Kreimer is their Algebraic Birkhoff Decomposition. In this tutorial article, we introduce their decomposition and prove it by the Atkinson Factorization in Rota-Baxter algebra. We then give some applications of this decomposition in the study of divergent integrals and multiple zeta values.
description: 39 pages. To appear in "Automorphic Forms and Langlands Program"
English as a second language teachers and culture : an interview study of role perceptions
Creators: name: Defoe, Tracy A.
Publisher: name: University of British Columbia
Year: 2010

description: Culture - how do ESL instructors deal with it? This document reports on an interview study into the intercultural role perceptions of a group of ESL teachers of adult learners. Thirty-five ESL instructors in general, vocational and academic preparation programs at a community college in Vancouver, Canada were interviewed in the spring of 1985. The objectives of the project were 1) to provide an account of ESL instructors' perceptions of their role as mediators of culture 2) to arrive at an analysis of their viewpoints taking into account the type of program, the crosscultural experience of the teachers, and their definitions of their roles in teaching and interpreting North American culture to immigrant adults in their classes. The research method focussed on ethnographic interviews aimed at recording the cultural aspects of the individual ESL teacher's work from his or her own point of view. Analysis of the findings identified a range of viewpoints regarding the role dimensions of 'being an example,' 'explaining and interpreting,' 'teaching interculturally,' and 'listening and helping - being a friend.' Differences on some role dimensions were found between informants from different programs and between informants with different cultural reference groups. Many informants reported an instrumental orientation to culture teaching.
Deep Unsupervised Hashing by Distilled Smooth Guidance
Creators: name: Luo, Xiao
name: Ma, Zeyu
name: Wu, Daqing
name: Zhong, Huasong
name: Chen, Chong
name: Ma, Jinwen
name: Deng, Minghua
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Hashing has been widely used in approximate nearest neighbor search for its storage and computational efficiency. Deep supervised hashing methods are not widely used because of the lack of labeled data, especially when the domain is transferred. Meanwhile, unsupervised deep hashing models can hardly achieve satisfactory performance due to the lack of reliable similarity signals. To tackle this problem, we propose a novel deep unsupervised hashing method, namely Distilled Smooth Guidance (DSG), which can learn a distilled dataset consisting of similarity signals as well as smooth confidence signals. To be specific, we obtain the similarity confidence weights based on the initial noisy similarity signals learned from local structures and construct a priority loss function for smooth similarity-preserving learning. Besides, global information based on clustering is utilized to distill the image pairs by removing contradictory similarity signals. Extensive experiments on three widely used benchmark datasets show that the proposed DSG consistently outperforms the state-of-the-art search methods.
description: 7 pages, 3 figures
AHS-structures and affine holonomies
Creators: name: Cap, Andreas
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C29, 53C10 (Primary); 53C15, 53C30, 53B15 (Secondary)

description: We show that a large class of non-metric, non-symplectic affine holonomies can be realized, uniformly and without case by case considerations, by Weyl connections associated to the natural AHS-structures on certain generalized flag manifolds.
description: AMS-LaTeX, 8 pages, v2: changes in exposition; final version; to appear in Proc. Amer. Math. Soc
News from Gaia on sigma Ori E: a case study for the wind magnetic braking process
Creators: name: Song, H. F.
name: Meynet, G.
name: Maeder, A.
name: Mowlavi, N.
name: Stroud, S. R.
name: Keszthelyi, Z.
name: Ekstrom, S.
name: Eggenberger, P.
name: Georgy, C.
name: Wade, G. A.
name: Qin, Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Sigma Ori E, a massive helium B-type star, shows a high surface rotation and a strong surface magnetic field potentially challenging the process of wind magnetic braking. The Gaia satellite provides an accurate distance to that star and confirms its membership to the sigma Ori cluster. We account for these two key pieces of information to investigate whether single star models can reproduce the observed properties of sigma Ori E and provide new estimates for its metallicity, mass, and age. We compute rotating stellar models accounting for wind magnetic braking and magnetic quenching of the mass loss. We obtain that sigma Ori E is a very young star (age less than 1 Myr) with an initial mass around 9 Msol, a surface equatorial magnetic field around 7 kG and having a metallicity Z (mass fraction of heavy elements) around 0.020. No solution is obtained with the present models for a metallicity Z=0.014. The initial rotation of the models fitting sigma Ori E is not much constrained and can be anywhere in the range studied in the present work. Because of its very young age, models predict no observable changes of the surface abundances due to rotational mixing. The simultaneous high surface rotation and high surface magnetic field of sigma Ori E may simply be a consequence of its young age. This young age implies that the processes responsible for producing the chemical inhomogeneities that are observed at its surface should be rapid. Thus for explaining the properties of sigma Ori E, there is no necessity to invoke a merging event although such a scenario cannot be discarded. Other stars (HR 5907, HR 7355, HR 345439, HD 2347, CPD -50^{o}3509$) showing similar properties as sigma Ori E (fast rotation and strong surface magnetic field) may also be very young stars, although determination of the braking timescales is needed to confirm such a conclusion.
description: 13 pages, 8 figures, paper accepted for publication in Astronomy and Astrophysics
Eukoenenia berlesei
Creators: name: Mayoral, Jaime
name: Hernández-Borroto, Samuel
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Palpigradi
Eukoeneniidae
Eukoenenia
Eukoenenia berlesei

description: Eukoenenia berlesei (Silvestri, 1903)
Material Examined: 2 females, Reparto Alamar, Municipio Habana del Este, Provincia La Habana, Cuba. 28– Nov–2020. S. Hernández-Borroto leg.
Remarks
The two females captured in La Habana, Cuba carry one blade in the lateral organ, 12 deuto-tritosternal setae, 9 teeth in the chelicerae, 4–4–2 thick setae on coxae II–IV and bta IV with 7 setae (2 esd, 2 esd, r, grt and gla). There are five (2+1+2) thick and long glandular setae on sternite IV, and four long and thick setae on the mid-range of sternite VI; in addition, sternites IV to VI carry two a and two s setae on each side of the opisthosoma. These characters are consistent with the species of the complex mirabilis - berlesei, and with E. berlesei in particular after the number of setae on sternites IV and VI. An examination of the female genitalia also revealed a resemblance to E. berlesei in that they bear cylindrical and thickened a 1 and a 2 setae, which are considerably shorter than a 3 and a 4. This morphology contrasts with the setulose a 1 and a 2 setae described by Condé (1984) for E. berlesei virginea Condé, 1984 from relatively nearby St. John in the Virgin Islands. There are also several tiny spines distally on the first genital lobe, only visible at 1000X (oil), however this lobe lacks the median lobe projection depicted by Condé (1984) in Fig 2A for E. berlesei. Morphometric data for the females of this species captured from Cuba are included in Table 1.
description: Published as part of Mayoral, Jaime & Hernández-Borroto, Samuel, 2023, Palpigrades from Cuba (Arachnida: Palpigradi: Eukoeneniidae), pp. 475-487 in Zootaxa 5296 (3) on page 476, DOI: 10.11646/zootaxa.5296.3.9, http://zenodo.org/record/7984266
Corythucha arcuata (Heteroptera, Tingidae): Evaluation of the pest status in Central Europe and development of strategies to slow the spread (OLBIE)
Creators: name: Williams, David
Publisher: name: Zenodo
Year: 2019
Subjects: Euphresco, plant health, biology, monitoring, pathways, management, PRA, Corythucha arcuata, entomology

description: Slide of the Euphresco project 2108-F-274 'Corythucha arcuata (Heteroptera, Tingidae): Evaluation of the pest status in Central Europe and development of strategies to slow the spread (OLBIE)'
description: Project funded through the Euphresco network
Iterative method for solving nonlinear integral equations describing rolling solutions in String Theory
Creators: name: Joukovskaya, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a nonlinear integral equation with infinitely many derivatives that appears when a system of interacting open and closed strings is investigated if the nonlocality in the closed string sector is neglected. We investigate the properties of this equation, construct an iterative method for solving it, and prove that the method converges.
description: 11 pages, 2 figures
Eukoenenia florenciae
Creators: name: Mayoral, Jaime
name: Hernández-Borroto, Samuel
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Palpigradi
Eukoeneniidae
Eukoenenia
Eukoenenia florenciae

description: Eukoenenia florenciae (Rucker, 1903)
Material examined: 2 females, Reparto Alamar, Municipio Habana del Este, Provincia La Habana, Cuba. 28–Nov– 2020. S. Hernández-Borroto leg.
Remarks
The two specimens were captured at the same location together with the previous species. Their characters are consistent with E. florenciae: 3 blades in each lateral organ, 6 setae on btaIV, propeltidium with 10 + 10 setae, metapeltidium with 2 + 2 setae (t 2, t 3), sternites IV–VI with a 1, a 2, a 3, a 4, s 1 and s 2, 4 –4–2 thick setae on coxae II–IV, and female genitalia identical to those depicted in Christian & Christophoryová (2013). The morphometric data also agree well with specimens of this species reported from Europe (Christian & Christophoryová 2013). Morphometric data and ratios for the Cuban specimens of this species are included in Table 1.
description: Published as part of Mayoral, Jaime & Hernández-Borroto, Samuel, 2023, Palpigrades from Cuba (Arachnida: Palpigradi: Eukoeneniidae), pp. 475-487 in Zootaxa 5296 (3) on page 476, DOI: 10.11646/zootaxa.5296.3.9, http://zenodo.org/record/7984266
title: A Rare Cause of Lower Abdominal Pain in The Emergency Department: Emphysematous Cystitis
Creators: name: Akhan, Bilge Sezin
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Uroradiology & genital male imaging
subject: Abdomen
subject: Emergency
subject: Urinary Tract / Bladder
subject: Conventional radiography
subject: CT
subject: Clinical Cases

description: Clinical History: An 84-years-old female patient presented to the emergency department with suprapubic pain for a few days. The patient had a history of hypertension (HT) and diabetes mellitus disease (DM). On physical examination, she was found to be a febrile at 37.4 °C. The abdomen was soft but there was pain with deep palpation in the suprapubic region.

description: 84 years, female
Double Box Motive
Creators: name: Bloch, Spencer
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Geometry (math.AG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The motive associated to the second Symanzik polynomial of the double-box two-loop Feynman graph with generic masses and momenta is shown to be an elliptic curve.
resnet34-ssd1200.tensorflow
Creators: name: Liu, Ji
name: Hu, Yiming
name: Tian, Lu
Publisher: name: Zenodo
Year: 2019
Subjects: Object Detection
ResNet-34-SSD
tensorflow
COCO
inference

description: Application: Object Detection

ML Task: ResNet-34-SSD

Framework: tensorflow 1.9

Training Information:

Quality: mmAP 20.2%

Precision: single-precision float

Is Quantized: no

Is ONNX: no

Dataset: COCO
Search for third-generation leptoquarks in ppbar collisions at sqrt(s)=1.96 TeV
Creators: name: D0 Collaboration
name: Abazov, V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report on a search for charge-1/3 third-generation leptoquarks (LQ) produced in ppbar collisions at sqrt(s)=1.96 TeV using the D0 detector at Fermilab. Third generation leptoquarks are assumed to be produced in pairs and to decay to a tau neutrino and a b quark with branching fraction B. We place upper limits on sigma(ppbar->LQLQbar)*B^2 as a function of the leptoquark mass M_{LQ}. Assuming B=1, we exclude at the 95% confidence level third-generation scalar leptoquarks with M_{LQ} < 229 GeV.
description: Submitted to PRL, LaTeX, 7 pages, 5 figures
In vivo long-term effects of radiation on gene expression
Creators: name: Jafer, Ayman M.
Publisher: name: University of Leicester
Year: 2021
Subjects: Uncategorized

description: Despite great advancement in our understanding of the biological response to ionising radiation in mammals, a number of pertinent questions remain unanswered. For instance, the mechanisms underlying the long-term effects of acute radiation in vivo still eludes us. Here we report that acute exposure to X-rays in male mice significantly affects their transcriptome. Using microarrays and miRNA-sequencing, we profiled the gene expression pattern in the brain, the kidney, the liver and the sperm of irradiated and control from CBA/Ca and BALB/c in the timeline of 4 hours, 24 hours, 1 week and 10 weeks post-exposure. Acute exposure to 1 Gy of X-rays resulted in profound tissue and strain-specific changes in gene expression pattern. There was profound change in the gene expression in the kidney of BALB/c irradiated mice over the period of 10 weeks after irradiation, whereas in the CBA/Ca strain the significant transcriptomic changes manifest over a shorter period of time up to 1 week post exposure. In the brain of irradiated CBA/Ca, significant changes in transcriptome was seen up to 10 weeks post-irradiation, while only short-term changes up to 4 hours post-exposure was detected in the brain of irradiation BALB/c. Similarly, alteration in gene expression pattern was observed in the liver of irradiated BALB/c up to 10 weeks post-radiation, whereas only immediate but significant changes were observed in the CBA/Ca at 4 hours post-irradiation.Furthermore, the analysis of miRNA in irradiated and control male mice also revealed highly tissue and strain specific changes in expression level, with no overlap between the differentially regulated miRNA genes across the three somatic tissues and the two inbred strains. We also analysed the pattern of miRNA expression in sperm of irradiated males, sacrificed at 24 hours, 1 week and 10 weeks after irradiation. Only one miRNA (mmu-miR-217-5p) was significantly down-regulated in the CBA/Ca males. The results of our study may provide a plausible explanation for the delayed in vivo effects of irradiation on gene expression.
Size dependent nature of the magnetic-field driven superconductor-to-insulator quantum-phase transitions
Creators: name: Zhang, Xiaofu
name: Lita, Adriana E.
name: Liu, Huanlong
name: Verma, Varun B.
name: Zhou, Qiang
name: Nam, Sae Woo
name: Schilling, Andreas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The nature of the magnetic-field driven superconductor-to-insulator quantum-phase transition in two-dimensional systems at zero temperature has been under debate since the 1980s, and became even more controversial after the observation of a quantum-Griffiths singularity. Whether it is induced by quantum fluctuations of the superconducting phase and the localization of Cooper pairs, or is directly driven by depairing of these pairs, remains an open question. We herein experimentally demonstrate that in weakly-pinning systems and in the limit of infinitely wide films, a sequential superconductor-to-Bose insulator-to-Fermi insulator quantum-phase transition takes place. By limiting their size smaller than the effective penetration depth, however, the vortex interaction alters, and the superconducting state re-enters the Bose-insulating state. As a consequence, one observes a direct superconductor-to-Fermi insulator in the zero-temperature limit. In narrow films, the associated critical-exponent products diverge along the corresponding phase boundaries with increasing magnetic field, which is a hallmark of the quantum-Griffiths singularity.
description: 6 main figures, 11 supplementary Figures, 2 supplementary Movies. This is a preprint of an article published in Communications Physics. The final authenticated open-access version with updated figures and text is available for free from May 14, 2021 at https://doi.org/10.1038/s42005-021-00602-7
Necessary and Sufficient Conditions on Sparsity Pattern Recovery
Creators: name: Fletcher, Alyson K.
name: Rangan, Sundeep
name: Goyal, Vivek K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The problem of detecting the sparsity pattern of a k-sparse vector in R^n from m random noisy measurements is of interest in many areas such as system identification, denoising, pattern recognition, and compressed sensing. This paper addresses the scaling of the number of measurements m, with signal dimension n and sparsity-level nonzeros k, for asymptotically-reliable detection. We show a necessary condition for perfect recovery at any given SNR for all algorithms, regardless of complexity, is m = Omega(k log(n-k)) measurements. Conversely, it is shown that this scaling of Omega(k log(n-k)) measurements is sufficient for a remarkably simple ``maximum correlation'' estimator. Hence this scaling is optimal and does not require more sophisticated techniques such as lasso or matching pursuit. The constants for both the necessary and sufficient conditions are precisely defined in terms of the minimum-to-average ratio of the nonzero components and the SNR. The necessary condition improves upon previous results for maximum likelihood estimation. For lasso, it also provides a necessary condition at any SNR and for low SNR improves upon previous work. The sufficient condition provides the first asymptotically-reliable detection guarantee at finite SNR.
description: Submitted to IEEE Transactions on Information Theory
Space-time wave localization in electromechanical metamaterial beams with programmable defects
Creators: name: Thomes, Renan Lima
name: Beli, Danilo
name: Marqui, Carlos De
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: A flexible wave localization is investigated using a spatial-temporal modulation of point defects along the periodic array of electromechanical local resonators of a piezoelectric bimorph beam. By changing the electrical resonance of subsequent unit cells through a smooth and synchronized strategy, a point defect is moved along the metastructure, which properly transfers the vibration energy between the unit cells as well as perfectly induces wave localization according to the final defect position. This wave manipulation by programmable defects is also applied to a two-dimensional triangular lattice composed by piezoelectric metamaterial beams, which illustrates the potential and versatility of the proposed strategy in more complex systems. Therefore, this work opens new possibilities for programmable wave localization and manipulation using smart electromechanical metamaterials with applications that may involve guiding, sensing, monitoring and harvesting.
Multihop Diversity in Wideband OFDM Systems: The Impact of Spatial Reuse and Frequency Selectivity
Creators: name: Oyman, Ozgur
name: Laneman, J. Nicholas
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The goal of this paper is to establish which practical routing schemes for wireless networks are most suitable for wideband systems in the power-limited regime, which is, for example, a practically relevant mode of operation for the analysis of ultrawideband (UWB) mesh networks. For this purpose, we study the tradeoff between energy efficiency and spectral efficiency (known as the power-bandwidth tradeoff) in a wideband linear multihop network in which transmissions employ orthogonal frequency-division multiplexing (OFDM) modulation and are affected by quasi-static, frequency-selective fading. Considering open-loop (fixed-rate) and closed-loop (rate-adaptive) multihop relaying techniques, we characterize the impact of routing with spatial reuse on the statistical properties of the end-to-end conditional mutual information (conditioned on the specific values of the channel fading parameters and therefore treated as a random variable) and on the energy and spectral efficiency measures of the wideband regime. Our analysis particularly deals with the convergence of these end-to-end performance measures in the case of large number of hops, i.e., the phenomenon first observed in \cite{Oyman06b} and named as ``multihop diversity''. Our results demonstrate the realizability of the multihop diversity advantages in the case of routing with spatial reuse for wideband OFDM systems under wireless channel effects such as path-loss and quasi-static frequency-selective multipath fading.
description: 6 pages, to be published in Proc. 2008 IEEE International Symposium on Spread Spectrum Techniques and Applications (IEEE ISSSTA'08), Bologna, Italy
title: Playbook und Modell für interkulturelle Mentoring-Beziehungen
Creators: name: Bleiweiss, Karin Andrea
Publisher: name: FH Vorarlberg (Fachhochschule Vorarlberg)
Year: 2021
Subjects: subject: 300 Sozialwissenschaften
subject: 740 Grafik, angewandte Kunst

description: Mentoring wird traditionell als unterstützende Beziehung zwischen einer (zumindest in einem Teilbereich) weniger erfahrenen und erfahreneren Person gesehen, wobei sich die Inhalte und Zielsetzungen je nach Kontext und beteiligter Personen unterscheiden. Es wird im englischsprachigen Umfeld schon seit vielen Jahren praktiziert und gewinnt im europäischen und auch deutschsprachigen Bereich zunehmend an Popularität. Ausgehend von meiner eigenen Tätigkeit und Erfahrung als Mentorin für zwei Teams von jungen ostafrikanischen Sozialunternehmern, bin ich der Frage nachgegangen, wie sich interkulturelle Mentoring-Beziehungen durch Design unterstützen und wie sich eine gestaltete Intervention drei weitere Ziele auf dem Weg erreichen lassen – die beidseitige Lernerfahrung reichhaltig gestalten; das Soziale Kapital (Social Capital) beider, des Mentees und Mentors, erhöhen und diversifizieren; und die Wertschätzung für Vielfalt, über die Beziehung hinaus, steigern. Durch die verstärkte Migration, z.B. bedingt durch den Fachkräftemangel und berufliche Mobilität ganz allgemein, sowie die Internationalisierung von Unternehmen, sehe ich Bedarf für eine Lösung. Forschungsergebnisse von Voigt (2013) denen nach Mentoring in deutschen Tech-Unternehmen eher als „Anpassungsinstrument“ eingesetzt wird, und damit Potentiale, die durch Zusammentreffen von Menschen unterschiedlicher Hintergründe entstehen, vernachlässigt werden, haben mich zusätzlich in meiner Annahme bestätigt. Neben extensiver Literaturrecherche, Expert:innen-Interviews, diversen Erhebungen zur Einschätzung von Mentoring und Diversität bzw. der Zusammenarbeit von Menschen diverser kultureller Hintergründe, habe ich außerdem eigene Erfahrungen per Selbstethnografie erfasst. Die resultierenden Erkenntnisse, sind in Übungen bzw. Werkzeuge und ein Spiral-Model für Interkulturelle Mentoring-Beziehungen eingeflossen. Zusammen mit Information zu den Themen Mentoring, Kultur und Lernen, wurden diese in einem Mentoring Playbook zusammengestellt. Diversität und die daraus entstehenden Potentiale wurden konsequent auch in die Gestaltung einbezogen, u.a. durch die Zusammenarbeit mit Gestalter:innen aus vier verschiedenen Ländern.
Conductance of a junction between a normal metal and a Berezinskii superconductor
Creators: name: Fominov, Ya. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The conductance of a junction between a normal metal and a superconductor having the symmetry proposed by Berezinskii is studied theoretically. The main feature of this symmetry is the odd frequency dependence of the anomalous Green function, which makes possible the s-wave triplet superconducting state (the Berezinskii superconductor). The Andreev reflection (which links positive and negative energies) is sensitive to the energetic symmetry; as a result, the conductance of the junction involving the Berezinskii superconductor is qualitatively different from the case of a conventional superconductor. Experimentally, the obtained results can be employed to test the possibility of the Berezinskii superconductivity proposed for Na$_x$CoO$_2$ and to identify the odd-omega component predicted for superconductor-ferromagnet junctions.
description: 5 pages (including 3 EPS figures)