cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Approximation by quadrilateral finite elements
Creators: name: Arnold, Douglas N.
name: Boffi, Daniele
name: Falk, Richard S.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N30 (Primary) 41A10, 41A25, 41A27, 41A63 (Secondary)

description: We consider the approximation properties of finite element spaces on quadrilateral meshes. The finite element spaces are constructed starting with a given finite dimensional space of functions on a square reference element, which is then transformed to a space of functions on each convex quadrilateral element via a bilinear isomorphism of the square onto the element. It is known that for affine isomorphisms, a necessary and sufficient condition for approximation of order r+1 in L2 and order r in H1 is that the given space of functions on the reference element contain all polynomial functions of total degree at most r. In the case of bilinear isomorphisms, it is known that the same estimates hold if the function space contains all polynomial functions of separate degree r. We show, by means of a counterexample, that this latter condition is also necessary. As applications we demonstrate degradation of the convergence order on quadrilateral meshes as compared to rectangular meshes for serendipity finite elements and for various mixed and nonconforming finite elements.
description: 13 pages, 2 figures, submitted to Math. Comp
Statistical Physics of Synchronized Traffic Flow: Spatiotemporal Competition between S$\to$F and S$\to$J Instabilities
Creators: name: Kerner, Boris S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We have revealed statistical physics of synchronized traffic flow that is governed by a spatiotemporal competition between S$\rightarrow$F and S$\rightarrow$J instabilities (where F, S, and J denote, respectively, the free flow, synchronized flow, and wide moving jam traffic phases). A probabilistic analysis of synchronized flow based on simulations of a cellular automaton model in the framework of three-phase traffic theory is made. This probabilistic analysis shows that there is a finite range of the initial space-gap between vehicles in synchronized flow within which during a chosen time for traffic observation either synchronized flow persists with probability $P_{\rm S}$, or an S$\rightarrow$F transition occurs with probability $P_{\rm SF}$, or else an S$\rightarrow$J transition occurs with probability $P_{\rm SJ}$. Space-gap dependencies of the probabilities $P_{\rm S}$, $P_{\rm SF}$, and $P_{\rm SJ}$ have been found. The statistical features of synchronized flow found for a homogeneous road remain qualitatively for a road with a bottleneck. However, rather than nuclei for S$\rightarrow$F and S$\rightarrow$J instabilities occur at random road locations of the homogeneous road, due to a permanent non-homogeneity introduced by the bottleneck, nuclei for initial S$\rightarrow$F and S$\rightarrow$J instabilities appear mostly at the bottleneck.
description: 23 pages, 24 figures
Breathing Spots in a Reaction-Diffusion System
Creators: name: Haim, D.
name: Li, G.
name: Ouyang, Q.
name: McCormick, W. D.
name: Swinney, Harry L.
name: Hagberg, A.
name: Meron, E.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: A quasi-2-dimensional stationary spot in a disk-shaped chemical reactor is observed to bifurcate to an oscillating spot when a control parameter is increased beyond a critical value. Further increase of the control parameter leads to the collapse and disappearance of the spot. Analysis of a bistable activator-inhibitor model indicates that the observed behavior is a consequence of interaction of the front with the boundary near a parity breaking front bifurcation.
description: 4 pages RevTeX, see also http://chaos.ph.utexas.edu/ and http://t7.lanl.gov/People/Aric/
Peer language interactions within the mathematical problem solving process: the case of four year olds
Creators: name: SHIAKALLI, MARIA ANGELA
name: ZACHAROS, KONSTANTINOS
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2015
Subjects: Problem solving, verbal communication, cumulative talk, exploratory talk, investigative talk

description: In this paper we aim to study the forms of verbal communication between four year old children while occupied with the mathematical problem solving process. We also look at the possibility of peer language interaction contributing to the mathematical problem solving process.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 2, N. 2 (2015)
Web bases for sl(3) are not dual canonical
Creators: name: Khovanov, Mikhail
name: Kuperberg, Greg
Publisher: name: arXiv
Year: 1997
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We compare two natural bases for the invariant space of a tensor product of irreducible representations of A_2, or sl(3). One basis is the web basis, defined from a skein theory called the combinatorial A_2 spider. The other basis is the dual canonical basis, the dual of the basis defined by Lusztig and Kashiwara. For sl(2) or A_1, the web bases have been discovered many times and were recently shown to be dual canonical by Frenkel and Khovanov. We prove that for sl(3), the two bases eventually diverge even though they agree in many small cases. The first disagreement comes in the invariant space Inv((V^+ tensor V^+ tensor V^- tensor V^-)^{tensor 3}), where V^+ and V^- are the two 3-dimensional representations of sl(3). If the tensor factors are listed in the indicated order, only 511 of the 512 invariant basis vectors coincide.
description: 18 pages. This version has very minor corrections
Effect of VAULT treatment (Munro et al., 2021)
Creators: name: Munro, Natalie
name: Baker, Elise
name: Masso, Sarah
name: Carson, Lynn
name: Lee, Taiying
name: Wong, Anita M-Y
name: Stokes, Stephanie F.
Publisher: name: ASHA journals
Year: 2021
Subjects: subject: Language
subject: 170204 Linguistic Processes (incl. Speech Production and Comprehension)
subject: FOS: Psychology

description: Purpose: This study examined the effect of Vocabulary Acquisition and Usage for Late Talkers (VAULT) treatment on toddlers’ expressive vocabulary and phonology. Parent acceptability of VAULT treatment was also considered.Method: We used a nonconcurrent multiple baseline single case experimental design with three late talking toddlers aged 21–25 months. The treatment was delivered twice weekly in 30-min sessions for 8 weeks by a rotating team of four speech-language pathologists. Toddlers heard three of their 10 strategically selected target words a minimum of 64 times in play activities each session. Expressive vocabulary and phonology was assessed pre–post, with parent interviews conducted posttreatment.Results: All toddlers increased production of target words and expressive vocabulary. Ambient expressive vocabulary size increased by an average of 16 words per week (range of 73–169 words learned over the treatment period). On a 20-item, single-word speech assessment, the toddlers’ phonetic inventories increased on average from three to seven consonants, and five to eight vowels. Two toddlers used protowords pretreatment, which were replaced by recognizable attempts at words posttreatment. Parents reported the treatment was acceptable for the child and their family with future consideration of parent-based delivery of the treatment in the home.Conclusions: The results of this treatment provide further evidence of a model of intervention informed by the principles of implicit learning, and the interconnectedness of phonological and lexical learning. Investigation is required to establish the efficacy and feasibility of VAULT in clinical contexts.
Supplemental Material S1. General child and family questionnaire.
Supplemental Material S2. Interview schedule: Immediately after intervention.
Munro, N. Baker, E., Masso, S., Carson, L., Lee, T., Wong, A. M.-Y., & Stokes, S. F. (2021). Vocabulary Acquisition and Usage for Late Talkers treatment: Effect on expressive vocabulary and phonology. Journal of Speech, Language, and Hearing Research. Advance online publication. https://doi.org/10.1044/2021_JSLHR-20-00680
Establishment of Conditioned Reinforcement for Reading Content and Effects on Reading Achievement for Early-Elementary Students
Creators: Gentilini, Lara
Publisher: name: Columbia University
Year: 2019
Subjects: Reading
Academic achievement
Reinforcement (Psychology)
Reading interests

description: Reading interest is a significant predictor of reading achievement, with effects on both reading comprehension and vocabulary. We measured students’ interest in reading as an estimate of duration of observable reading using whole intervals of silent-reading time. In Experiment 1, we assessed associations among interest in reading (i.e., reinforcement value of reading) and the reading comprehension and vocabulary of 34 second-grade students. There were significant correlations between reading interest and these dependent measures. In Experiment 2, we simultaneously conducted a combined preintervention and postintervention design with multiple probe logic to test the effect of the establishment of a high interest in reading (i.e., conditioned reinforcement for reading) via a collaborative shared reading procedure with a teacher on reading comprehension and vocabulary. This procedure involved periods of reciprocal reading and related collaborative reading activities designed to increase students’ interest in reading. The establishment of a high interest in reading for 7 of the participants resulted in grade-level increases from 0.1 to 2.2 grades on various measures of reading achievement in less than 9 sessions (315 min). In Experiment 3, we implemented a combined small-n experimental-control simultaneous treatment design and a single-case multiple-probe design with multiple-probe logic. We tested and compared the effects of the establishment of conditioned reinforcement for reading, via the collaborative shared reading procedure with a teacher versus a peer, on participants’ gains in reading comprehension and vocabulary. All participants for whom conditioned reinforcement for reading was established in Experiment 3 (n = 7) demonstrated gains in reading achievement after a maximum of nine sessions (412 min), with grade-level increases between 0.2 and 2.5 on measures of reading comprehension and 0.3 to 3.1 on measures of vocabulary. Based on a comparison of the dependent variables included in both Experiments 2 and 3, the modified teacher-yoked collaborative shared reading procedure in Experiment 2 resulted in greatest relative average gains in reading achievement for participants who acquired conditioned reinforcement for reading (n = 3). However, the modified collaborative shared reading procedure with a peer required the least amount of teacher mediation and may be more viable for teachers. This trans-disciplinary effort proposes an account of motivation to read as conditioned reinforcement for reading content and its effects on reading achievement, with the educationally-significant goal of establishing reinforcers for continued learning.
title: Festuca ovina
title: Echter Schaf-Schwingel (Festuca ovina)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 2 Bilder des Echten Schaf-Schwingels.
A chromosome-level genome assembly of the mud carp (Cirrhinus molitorella)
Creators: name: Liu, Haiyang
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 300501
subject: Aquaculture
classificationCode: 300502
subject: Aquaculture and fisheries stock assessment
classificationCode: 300504
subject: Fish physiology and genetics

description: Genome annotations (.gff3), along with predicted coding sequences (.cds) and protein sequences (.pep) of the mud carp (Cirrhinus molitorella) genome assembly.
title: Festuca pratensis
title: Gewöhnlicher Wiesen-Schwingel (Festuca pratensis)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 2 Bilder des Gewöhnlichen Wiesen-Schwingels.
title: Festuca spec.
title: Schwingel (Festuca spec.)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 2 Bilder des Schwingels.
Could the evaluation of written essays affect tutor-student communication in distance learning? Perceptions of Open University postgraduate students
Creators: name: KOUSTOURAKIS, GERASIMOS
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2015
Subjects: Written essays, Open University, habitus, framing, evaluation

description: The objective of this paper, which makes use of the concepts of framing from Bernstein’s theory, and habitus from Bourdieu’s theory, is the sociological approach to, and analysis of, the perceptions of postgraduate students of the Hellenic Open University, regarding the extent to which the quality of the professors’ letters of response, which evaluate their written essays, affect the communication between them. Fifty-one students, who were attended the Module “Open Distance Learning” during the spring semester of the 2012-2013 academic year, took part in the research. The main results of the research showed that with regard to the correction of their written essays by the teacher, the students want: a) communication to take place with the use of the friendly plural form, which reproduces the socially acceptable habitus in Greece for the polite interaction of adults in the educational field; b) the adoption of a friendly and familiar tone of writing in the letters of response, which reveals the tutors’ understanding and acceptance of the peculiarities of the students (weak framing of hierarchical rules); and c) the application of strong framing of Instructional Discourse on evaluation where the tutor replies with clarity and in detail to each student, making the evaluation criteria with which his written essay was corrected explicit. Evaluating the written essays in this manner creates the necessaryconditions for positive relations between tutor and students (weak framing of Regulative Discourse) which contributes to the promotion of communication between them.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 2, N. 2 (2015)
Can DREEM Instrument (Dundee Ready Education Environment Measure) measure the learning environment in a School of Education?
Creators: name: RIGA, VASSILIKI
name: KOSSIONI, ANASTASSIA
name: LYRAKOS, GEORGE
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2015
Subjects: DREEM, validation, educational department, educational environment, undergraduate students

description: The DREEM inventory is a validated tool assessing the educational environment in health professions institutions around the world. The aim of the present study was to validate DREEM in a different educational setting. The translated and validated in Greek questionnaire was delivered to the students of the Department of Educational Sciences and Early Childhood Education at the University of Patras. The explorative factor analysis revealed a different model than the one proposed in the original DREEM study. The overall 62% score showed a very good educational environment in the educational department. The lowest scores were related to the lack of an efficient stress-support system, lack of appropriate feedback from teachers, and to the fact that students are bored during the courses. Even though the instrument is a highly recommended tool for use in a medical school environment it seems that different aspects should be considered for different educational settings.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 2, N. 2 (2015)
Reanalyze the pulsar scenario to explain the cosmic positron excess considering the recent developments
Creators: name: Fang, Kun
name: Bi, Xiao-Jun
name: Yin, Peng-Fei
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: As the TeV halos around Geminga and PSR B0656+14 have been confirmed by HAWC, slow diffusion of cosmic rays could be general around pulsars, and the cosmic positron spectrum from pulsars could be significantly changed. As a consequence, the most likely pulsar source of the positron excess, Geminga, is no more a viable candidate under the additional constraint from Fermi-LAT. Moreover, the latest measurement by AMS-02 shows a clear cutoff in the positron spectrum, which sets a strict constraint on the age of the pulsar source. Considering these new developments we reanalyze the scenario in this work. By checking all the observed pulsars under the two-zone diffusion scenario, we propose for the first time that PSR B1055-52 is a very promising source of the positron excess. B1055-52 can well reproduce both the intensity and the high-energy cut of the AMS-02 positron spectrum, and may also explain the H.E.S.S $e^-+e^+$ spectrum around 10 TeV. Moreover, if the slow diffusion is universal in the local interstellar medium, B1055-52 will be the unique reasonable source of the AMS-02 positron spectrum among the observed pulsars.
description: 12 pages, 3 figures, 1 table
Science teacher training within the education system in Lesotho and the realities on the ground
Creators: name: MABEJANE, 'MASEQAO REGINA
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2015
Subjects: Science teacher, teacher training, ground realities

description: In this paper the author describes the current situation of science teacher training within Lesotho’s education system and some practicalities faced by science teacher educators and teachers. Some empirical evidence of the disparities between science teachers’ training and what prevails in the world of work is drawn from the study conducted in 2013 in which the challenges faced by mathematics and science teachers at both primary and secondary levels were investigated. The challenges were generally those that had to do with teacher’s subject content knowledge, pedagogical knowledge and pedagogical content knowledge with its inherent components. The author focuses mainly on the curriculum and the professional development of science teachers that enable enactment of teacher knowledge. The paper concludes by proposing some probable broad means that could be considered to better meet the national educational aspirations through the teaching and learning of science.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 2, N. 2 (2015)
A local-global multiscale mortar mixed finite element method for multiphase transport in heterogeneous media
Creators: name: Fu, Shubin
name: Chung, Eric
Publisher: name: arXiv
Year: 2019
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, we propose a local-global multiscale mortar mixed finite element method (MMMFEM) for multiphase transport in heterogeneous media. We consider the two-phase flow system, the pressure equation is solved via the multiscale mortar mixed finite element method, a mass conservation velocity field can be obtained, then we use explicit finite volume method to solve the saturation equation. We use polynomials and multiscale basis to form the coarse mortar space. The multiscale basis is the restriction of global pressure field obtained at previous time step on the coarse interface. We solve the pressure equation on the fine grid to initialize the simulation. Numerical experiments on some benchmark 2D and 3D heterogeneous models are provided to validate the performance of our method.
Establishing a Community of Practice Between an Elementary Educator and a Scientist as a Means of Professional Development
Creators: Dashoush, Nermeen
Publisher: name: Columbia University
Year: 2015
Subjects: Science--Study and teaching

description: This dissertation reports on an ethnographic study to examine and detail emerging practices in a community of practice comprised of an elementary teacher and a scientist (microbiologist).  The study was conducted in order to design a model for professional development. It also aimed to contribute to the limited research involving elementary educators and their work with scientists. Furthermore, extra attention was given to understanding how both the elementary teacher and the scientist benefitted from their participation in the community of practice created from working together in teaching and learning science as a form of professional development. This was in accordance with a community of practice framework, which details that a healthy community is one without a perception of hierarchy among members (Wenger, 1998).
      The elementary teacher and scientist as participants collaborated in the creation of a science unit for an afterschool program. A wide variety of data was collected, including: interviews, transcribed meetings, and online journals from both participants. The data was coded for reoccurring themes surrounding practices and shifts in perception about science teaching and learning that emerged from this community of practice as professional development.   The findings have implications for practices that could be used as a foundational structure in future collaborations involving elementary teachers and scientists for elementary science professional development.
Weakly Nonlinear Theory of Pattern-Forming Systems with Spontaneously Broken Isotropy
Creators: name: Rossberg, A. G.
name: Hertrich, A.
name: Kramer, L.
name: Pesch, W.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Quasi two-dimensional pattern forming systems with spontaneously broken isotropy represent a novel symmetry class, that is experimentally accessible in electroconvection of homeotropically aligned liquid crystals. We present a weakly nonlinear analysis leading to amplitude equations which couple the short-wavelength patterning mode with the Goldstone mode resulting from the broken isotropy. The new coefficients in these equations are calculated from the hydrodynamics. Simulations exhibit a new type of spatio-temporal chaos at onset. The results are compared with experiments.
description: 4 pages, RevTeX, 4 PS-figures, to appear in PRL
The missing dwarf galaxies of the Local Group
Creators: name: Fattahi, Azadeh
name: Navarro, Julio F.
name: Frenk, Carlos S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the Local Group (LG) dwarf galaxy population predicted by the \apostle $Λ$CDM cosmological hydrodynamics simulations. These indicate that: (i)~the total mass within $3$ Mpc of the Milky Way-Andromeda midpoint ($M_{\rm 3Mpc}$) typically exceeds $\sim 3$ times the sum of the virial masses ($M_{\rm 200crit}$) of the two primaries and (ii)~the dwarf galaxy formation efficiency per unit mass is uniform throughout the volume. This suggests that the satellite population within the virial radii of the Milky Way and Andromeda should make up fewer than one third of all LG dwarfs within $3$ Mpc. This is consistent with the fraction of observed LG galaxies with stellar mass $M_*>10^7\,M_{\odot}$ that are satellites ($12$ out of $42$; i.e., $28$ per cent). For the \apostle galaxy mass-halo mass relation, the total number of such galaxies further suggests a LG mass of $M_{\rm 3 Mpc}\sim 10^{13} \, M_{\odot}$. At lower galaxy masses, however, the observed satellite fraction is substantially higher ($42$ per cent for $M_*>10^5\,M_{\odot}$). If this is due to incompleteness in the field sample, then $\sim 50$ dwarf galaxies at least as massive as the Draco dwarf spheroidal must be missing from the current LG {\it field} dwarf inventory. The incompleteness interpretation is supported by the pronounced flattening of the LG luminosity function below $M_*\sim 10^7\, M_{\odot}$, and by the scarcity of low-surface brightness LG field galaxies compared to satellites. The simulations indicate that most missing dwarfs should lie near the virial boundaries of the two LG primaries, and predict a trove of nearby dwarfs that await discovery by upcoming wide-field imaging surveys.
description: replaced with the accepted version (minor changes)
Tracing preschoolers’ ability to form and use categories
Creators: name: ERGAZAKI, MARIDA
name: GASPARATOU, RENIA
name: VALANIDOU, EFTYCHIA
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2015
Subjects: Preschoolers and categories, preschoolers and categorization criteria, preschoolers and category-based reasoning

description: This paper reports on a small-scale exploratory case study that aims at highlighting preschoolers’ ability to categorize, grasp criteria for categorizing and use categories for attributing properties to target entities. Conducting individual, semi-structured interviews with 10 preschoolers (age 4-5) of a public kindergarten in the broader area of Patras, we attempted to trace their ability to (a) form categories by appealing to coherent criteria, (b) recognize the criteria that were used in the formation of given categories, and (c) infer the properties of target entities from the category they belong. The analysis of our qualitative data within the “NVivo” software showed that the informants of the study lacked the ability to coherently form categories, while they didn’t seem to encounter significant difficulties in recognizing how given categories have been structured. Furthermore, they seemed capable for category-based reasoning that allowed them to predict the properties of target entities according to the category they belong when they were made aware of this category. The educational implications of our findings are thoroughly discussed in the paper.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 2, N. 2 (2015)
Ed-Tech Within Limits: anticipating educational technology in times of environmental crisis
Creators: name: Selwyn, Neil
Publisher: name: Monash University
Year: 2021
Subjects: Education

description: Selwyn, N. (2021). Ed-Tech Within Limits: anticipating educational technology in times of environmental crisis. Pre-print version of article to appear in: E-Learning and Digital Media (2021) ABSTRACT: Despite climate heating and rising ecological instability, environmental issues feature rarely in discussions of educational technology. Most commentators presume the continued unfettered use of digital education resources bolstered by occasional claims that emerging technologies might support the ‘greening’ of school and university provision. In contrast to such business-as-usual complacency, this article anticipates ongoing environmental degradation of the planet as radically up- ending the continued expansion of digital technologies in education. On one hand, depletion of natural resources and energy curtailments might put paid to established ‘abundant’ forms of digital technology use. On the other hand, more frequent climate- related disasters might necessitate emergency forms of education for displaced and unsettled populations. As such, the article argues for a new paradigm of educational technology that is both wholly sustainable and targeted toward displaced and disadvantaged populations. The article considers a number of ways that such an ‘EdTech within Limits’ might be pursued – outlining fundamental shifts in thinking necessary to reorient educational technology along environmentally-concerned lines.
title: Helictotrichon versicolor
title: Bunter Wiesenhafer (Helictotrichon versicolor)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 1 Bild des Bunten Wiesenhafers.
Perturbed Amplitude Flow for Phase Retrieval
Creators: name: Gao, Bing
name: Sun, Xinwei
name: Wang, Yang
name: Xu, Zhiqiang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, we propose a new non-convex algorithm for solving the phase retrieval problem, i.e., the reconstruction of a signal $ \vx\in\H^n $ ($\H=\R$ or $\C$) from phaseless samples $ b_j=\abs{\langle \va_j, \vx\rangle } $, $ j=1,\ldots,m $. The proposed algorithm solves a new proposed model, perturbed amplitude-based model, for phase retrieval and is correspondingly named as {\em Perturbed Amplitude Flow} (PAF). We prove that PAF can recover $c\vx$ ($\abs{c} = 1$) under $\mathcal{O}(n)$ Gaussian random measurements (optimal order of measurements). Starting with a designed initial point, our PAF algorithm iteratively converges to the true solution at a linear rate for both real and complex signals. Besides, PAF algorithm needn't any truncation or re-weighted procedure, so it enjoys simplicity for implementation. The effectiveness and benefit of the proposed method are validated by both the simulation studies and the experiment of recovering natural images.
title: Alopecurus aequalis
title: Rotgelbes Fuchsschwanzgras (Alopecurus aequalis)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 3 Bilder des Rotgelben Fuchsschwanzgrases.
On the Entanglement Cost of One-Shot Compression
Creators: name: Hadiashar, Shima Bab
name: Nayak, Ashwin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Complexity (cs.CC)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We revisit the task of visible compression of an ensemble of quantum states with entanglement assistance in the one-shot setting. The protocols achieving the best compression use many more qubits of shared entanglement than the number of qubits in the states in the ensemble. Other compression protocols, with potentially larger communication cost, have entanglement cost bounded by the number of qubits in the given states. This motivates the question as to whether entanglement is truly necessary for compression, and if so, how much of it is needed. Motivated by questions in communication complexity, we lift certain restrictions that are placed on compression protocols in tasks such as state-splitting and channel simulation. We show that an ensemble of the form designed by Jain, Radhakrishnan, and Sen (ICALP'03) saturates the known bounds on the sum of communication and entanglement costs, even with the relaxed compression protocols we study. The ensemble and the associated one-way communication protocol have several remarkable properties. The ensemble is incompressible by more than a constant number of qubits without shared entanglement, even when constant error is allowed. Moreover, in the presence of shared entanglement, the communication cost of compression can be arbitrarily smaller than the entanglement cost. The quantum information cost of the protocol can thus be arbitrarily smaller than the cost of compression without shared entanglement. The ensemble can also be used to show the impossibility of reducing, via compression, the shared entanglement used in two-party protocols for computing Boolean functions.
description: 23 pages, 1 figure. The paper is the same as v3; only metadata are updated. In v3: Main body reorganized; Thm 1.1 rephrased; a discussion of the entanglement measure added to Sec. 4; several improvements to the text throughout; Cor. 3.5 and Cor. 3.6 merged; Appendix created for the proofs of Cor. 3.5 and another statement in the main body; typos fixed; three references added
title: Oreochloa disticha
title: Zweizeiliges Kopfgras (Oreochloa disticha)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Zweizeilige Sesleria
subject: Sesleria disticha
subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 3 Bilder des Zweizeiligen Kopfgrases.
DESCRIPTION OF GAS HYDRATES EQUILIBRIA IN SEDIMENTS USING EXPERIMENTAL DATA OF SOIL WATER POTENTIAL
Creators: name: Istomin, Vladimir
name: Chuvilin, Evgeny
name: Makhonina, Natalia
name: Kvon, Valery
name: Safonov, Sergey
Publisher: name: The University of British Columbia
Year: 2008

description: The purpose of the work is to show how to employ the experimental data from geocryology and soil physics for thermodynamic calculations of gas hydrate phase equilibria by taking into account pore water behavior in sediments. In fact, thermodynamic calculation is used here to determine the amount of non-clathrated pore water content in sediments in equilibrium with gas and hydrate phases. A thermodynamic model for pore water behavior in sediments is developed. Taking into account the experimental water potential data, the model calculations show good agreement with the experimentally measured unfrozen water content for different pressure and temperature conditions. The proposed thermodynamic model is applied for calculations of three-phase equilibria: multicomponent gas phase (methane, natural gas, etc.) – pore water in clay, sand, loamy sand, etc. – bulk (or pore) hydrate. As a result, correlations have been established between unfrozen and non-clathrated water content in natural sediments.
Non-involutory Hopf algebras and 3-manifold invariants
Creators: name: Kuperberg, Greg
Publisher: name: arXiv
Year: 1997
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We present a definition of an invariant #(M,H), defined for every finite-dimensional Hopf algebra (or Hopf superalgebra or Hopf object) H and for every closed, framed 3-manifold M. When H is a quantized universal enveloping algebra, #(M,H) is closely related to well-known quantum link invariants such as the HOMFLY polynomial, but it is not a topological quantum field theory.
description: 36 pages
Additional file 4: of Homologous recombination-mediated targeted integration in monkey embryos using TALE nucleases
Creators: name: Chu, Chu
name: Yang, Zhaohui
name: Yang, Jiayin
name: Yan, Li
name: Si, Chenyang
name: Kang, Yu
name: Chen, Zhenzhen
name: Chen, Yongchang
name: Ji, Weizhi
name: Niu, Yuyu
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Figure S1. Plasmid profile of the donor vector Donor-PKID-E1-EmGFP. (PDF 200 kb)
title: Eriophorum angustifolium
title: Schmalblättriges Wollgras (Eriophorum angustifolium)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 10 Bilder des Schmalblättrigen Wollgrases.
"Minimal defence": a refinement of the preferred semantics for argumentation frameworks
Creators: name: Cayrol, C.
name: Doutre, S.
name: Lagasquie-Schiex, M. -C.
name: Mengin, J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.2.4

description: Dung's abstract framework for argumentation enables a study of the interactions between arguments based solely on an ``attack'' binary relation on the set of arguments. Various ways to solve conflicts between contradictory pieces of information have been proposed in the context of argumentation, nonmonotonic reasoning or logic programming, and can be captured by appropriate semantics within Dung's framework. A common feature of these semantics is that one can always maximize in some sense the set of acceptable arguments. We propose in this paper to extend Dung's framework in order to allow for the representation of what we call ``restricted'' arguments: these arguments should only be used if absolutely necessary, that is, in order to support other arguments that would otherwise be defeated. We modify Dung's preferred semantics accordingly: a set of arguments becomes acceptable only if it contains a minimum of restricted arguments, for a maximum of unrestricted arguments.
description: 8 pages, 3 figures
Exchange rules for diradical π-conjugated hydrocarbons
Creators: name: Ortiz, Ricardo
name: Boto, Roberto Álvarez
name: García-Martínez, Noel
name: Sancho-García, Juan Carlos
name: Melle-Franco, Manuel
name: Fernández-Rossier, Joaquín
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A variety of planar π-conjugated hydrocarbons such as heptauthrene, Clar's goblet and, recently synthesized, triangulene have two electrons occupying two degenerate molecular orbitals. The resulting spin of the interacting ground state is often correctly anticipated as S = 1, extending the application of Hund's rules to these systems, but this is not correct in some instances. Here we provide a set of rules to correctly predict the existence of zero mode states, as well as the spin multiplicity of both the ground state and the low-lying excited states, together with their open- or closed-shell nature. This is accomplished using a combination of analytical arguments and configuration interaction calculations with a Hubbard model, both backed by quantum chemistry methods with a larger Gaussian basis set. Our results go beyond the well established Lieb's theorem and Ovchinnikov's rule, as we address the multiplicity and the open-/closed-shell nature of both ground and excited states.
Meta-Mathematics of Computational Complexity Theory
Creators: name: Oliveira, Igor C.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Computational Complexity (cs.CC)
subject: Logic in Computer Science (cs.LO)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We survey results on the formalization and independence of mathematical statements related to major open problems in computational complexity theory. Our primary focus is on recent findings concerning the (un)provability of complexity bounds within theories of bounded arithmetic. This includes the techniques employed and related open problems, such as the (non)existence of a feasible proof that P = NP.
description: SIGACT News Complexity Theory Column 124
Mental Health and Wellbeing for Young People from Intersectional Identity Groups: Inequity for Māori, Pacific, Rainbow Young People, and those with a Disabling Condition
Creators: name: Roy, Rituparna
name: Greaves, Lara
name: Fenaughty, John
name: Fleming, Theresa
name: Clark, Terryann
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2023
Subjects: classificationCode: 5204
subject: Cognitive and computational psychology
classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 5205
subject: Social and personality psychology
classificationCode: 5203
subject: Clinical and health psychology

description: ‘Intersectionality’ describes the converging effects of ethnicity, gender, sexuality, disability, and
other social group characteristics that influence life experiences. We draw on a representative
study of year 9-13 students in Tai Tokerau, Tāmaki Makaurau, and Waikato (Youth19) to explore
differences in mental health and wellbeing outcomes for young people from a selection of
intersectional identities (Māori, Pasifika, Rainbow, and young people with a Disabling Condition).
We found a pervasive pattern of inequity for young people who have intersectional identities
compared to those from the majority groups (i.e. Pākehā, non-disabled, cis-heterosexual youth).
Intersectional youth had higher levels of inequity and faced a greater array of inequities. There was
evidence of an additive effect for some indicators. Thematic analysis of open-text survey
responses found the need for positive inclusive environments, and support for all young people,
including those at the intersections of identity. Drawing on the findings, we offered several systemslevel policy recommendations, including strategies to improve inclusiveness and reduce
discrimination.
La « communication didactique » dans le cadre de l’école maternelle
Creators: name: NERTIVICH, DIMITRI
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2015
Subjects: Didactical communication, teacher, student

description: The mutual connection between the internal and external conditions in the process of education is projected in a particular mannered on mutual relations "teacher-child." Referring to the essential features of teaching communication and cognitive perspective, we try to pursue a link between them. The placement of teachers and children at the positions of the interlocutors in the classroom, leading teaching and learning work on the subject-object relationship and also to subject-subject relations. In this context the complexity of the educational work is discussed.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 2, N. 2 (2015)
Additional file 1: of Houttuynia cordata Thunb. and its bioactive compound 2-undecanone significantly suppress benzo(a)pyrene-induced lung tumorigenesis by activating the Nrf2-HO-1/NQO-1 signaling pathway
Creators: name: Yanmei Lou
name: Zhenzhen Guo
name: Yuanfeng Zhu
name: Muyan Kong
name: Rongrong Zhang
name: Linlin Lu
name: Feichi Wu
name: Zhongqiu Liu
name: Jinjun Wu
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Inorganic Chemistry
subject: Hematology

description: Figure S1. The GC-FID chromatogram of standard compound 2-undecanone (A) and H.cordata water extract (B). Figure S2. Representative images showing haematoxylin and eosin staining of lung samples from the different groups. Figure S3. Effects of B[a]P on viability of BEAS-2B cells. Cell viability was examined using the MTT assay. The data represent the mean ± SD (n = 3). #p < 0.05 and ###p < 0.001 compared with the control cells (given water). Figure S4. Pairwise correlation between reduction in B[a]P-induced ROS over production and decreased p-H2A.X protein levels ratio in BEAS-2B cells by H. cordata (A) and 2-undecanone (B). The correlations were analyzed by using Person analysis. Figure S5. Pairwise correlation between reduction in B[a]P-induced ROS over production and decreased protein levels of pro-IL-1β or IL-1β in BEAS-2B cells by H. cordata (A) and 2-undecanone (B). The correlations were analyzed by using Person analysis. Figure S6. The efficiency of Nrf2 silencing. Nrf2 expression was silenced in BEAS-2B cells by transfection of three Nrf2-specific siRNA (siNrf2-1, siNrf2-2 or siNrf2-3), respectively. The protein levels of Nrf2 were evaluated by using Western blot analysis. Data shown represent the mean ± SD (n = 3). ***p < 0.001 compared with the cells transfected with the control siRNA (siCtrl). siNrf2-1 and siNrf2-2 were selected for subsequent assays according to the efficiency of Nrf2 silencing. (DOCX 7901 kb)
title: Agrostis capillaris
title: Gewöhnliches Straußgras (Agrostis capillaris)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Agrostis tenuis
subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 1 Bild des Gewöhnlichen Straußgrases.
Supplementary materials
Creators: name: Yalcin, Refet
name: McNeil, Patricia
name: Bhanawat, Abhinav
name: Martinez, Ricardo
name: Kashanchi, Glareh
name: Tolbert, Sarah
name: Dunn, Bruce
name: Pilon, Laurent
Publisher: name: AIP Publishing
Year: 2025
Subjects: classificationCode: 40
subject: Engineering

description: PDF file of Supplementary materials section containing additional figures mentioned in the manuscript
title: Agrostis rupestris
title: Felsen-Straußgras (Agrostis rupestris)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 3 Bilder des Felsen-Straußgrases.
DFTB modelling of lithium intercalated graphite with machine-learned repulsive potential
Creators: name: Panosetti, Chiara
name: Anniés, Simon B.
name: Grosu, Cristina
name: Seidlmayer, Stefan
name: Scheurer, Christoph
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Lithium ion batteries have been a central part of consumer electronics for decades. More recently, they have also become critical components in the quickly arising technological fields of electric mobility and intermittent renewable energy storage. However, many fundamental principles and mechanisms are not yet understood to a sufficient extent to fully realize the potential of the incorporated materials. The vast majority of concurrent lithium ion batteries make use of graphite anodes. Their working principle is based on intercalation---the embedding and ordering of (lithium-) ions in the two-dimensional spaces between the graphene sheets. This important process---it yields the upper bound to a battery's charging speed and plays a decisive role for its longevity---is characterized by multiple phase transitions, ordered and disordered domains, as well as non-equilibrium phenomena, and therefore quite complex. In this work, we provide a simulation framework for the purpose of better understanding lithium intercalated graphite and its behaviour during use in a battery. In order to address the large systems sizes and long time scales required to investigate said effects, we identify the highly efficient, but semi-empirical Density Funtional Tight Binding (DFTB) as a suitable approach and combine particle swarm optimization (PSO) with the machine learning (ML) procedure Gaussian Process Regression (GPR) to obtain the necessary parameters. Using the resulting parametrization, we are able to reproduce experimental reference structures at a level of accuracy which is in no way inferior to much more costly ab initio methods. We finally present structural properties and diffusion barriers for some exemplary system states.
description: Entirely revised parametrization followind bug fixes; results do not substantially change. Added supplementary information