cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Consequences of Tidal Dissipation in a Putative Venusian Ocean
Creators: name: Green, J. A. M.
name: Way, M. J.
name: Barnes, R.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The solar tide in an ancient Venusian ocean is simulated using a dedicated numerical tidal model. Simulations with varying ocean depth and rotational periods ranging from -243 to 64 sidereal Earth days are used to calculate the tidal dissipation rates and associated tidal torque. The results show that the tidal dissipation could have varied by more than 5 orders of magnitude, from 0.001--780 Gigawatts, depending on rotational period and ocean depth. The associated tidal torque is about 2 orders of magnitude below the present day Venusian atmospheric torque, and could change the Venusian day length by up to 72 days per million years depending on rotation rate. Consequently, an ocean tide on ancient Venus could have had significant effects on the rotational history of the planet. These calculations have implications for the rotational periods of similarly close-in exoplanetary worlds and the location of the inner edge of the liquid water habitable zone.
Algebraic Realization of Supersymmetric Quantum Mechanics for Cyclic Shape Invariant Potentials
Creators: name: Quesne, C.
name: Vansteenkiste, N.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study in detail the spectrum of the bosonic oscillator Hamiltonian associated with the $C_3$-extended oscillator algebra \algthree, where $C_3$ denotes a cyclic group of order three, and classify the various types of spectra in terms of the algebra parameters $α_0, α_1$. In such a classification, we identify those spectra having an infinite number of periodically spaced levels, similar to those of cyclic shape invariant potentials of period three. We prove that the hierarchy of supersymmetric Hamiltonians and supercharges, corresponding to the latter, can be realized in terms of some appropriately chosen \algthree algebras, and of Pauli spin matrices. Extension to period-$λ$ spectra in terms of $C_λ$-extended oscillator algebras is outlined.
description: LaTeX 2e, 22 pages, 8 figures (included)
Dynamic Term-Modal Logics for First-Order Epistemic Planning
Creators: name: Liberman, Andrés Occhipinti
name: Achen, Andreas
name: Rendsvig, Rasmus Kræmmer
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Artificial Intelligence (cs.AI)
subject: Multiagent Systems (cs.MA)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Many classical planning frameworks are built on first-order languages. The first-order expressive power is desirable for compactly representing actions via schemas, and for specifying quantified conditions such as $\neg\exists x\mathsf{blocks\_door}(x)$. In contrast, several recent epistemic planning frameworks are built on propositional epistemic logic. The epistemic language is useful to describe planning problems involving higher-order reasoning or epistemic goals such as $K_{a}\neg\mathsf{problem}$. This paper develops a first-order version of Dynamic Epistemic Logic (DEL). In this framework, for example, $\exists xK_{x}\exists y\mathsf{blocks\_door}(y)$ is a formula. The formalism combines the strengths of DEL (higher-order reasoning) with those of first-order logic (lifted representation) to model multi-agent epistemic planning. The paper introduces an epistemic language with a possible-worlds semantics, followed by novel dynamics given by first-order action models and their execution via product updates. Taking advantage of the first-order machinery, epistemic action schemas are defined to provide compact, problem-independent domain descriptions, in the spirit of PDDL. Concerning metatheory, the paper defines axiomatic normal term-modal logics, shows a Canonical Model Theorem-like result which allows establishing completeness through frame characterization formulas, shows decidability for the finite agent case, and shows a general completeness result for the dynamic extension by reduction axioms.
Quasiclassical Limit in q-Deformed Systems, Noncommutativity and the q-Path Integral
Creators: name: Chaichian, M.
name: Demichev, A.
name: Kulish, P. P.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Different analogs of quasiclassical limit for a q-oscillator which result in different (commutative and non-commutative) algebras of ``classical'' observables are derived. In particular, this gives the q-deformed Poisson brackets in terms of variables on the quantum planes. We consider the Hamiltonian made of special combination of operators (the analog of even operators in Grassmann algebra) and discuss q-path integrals constructed with the help of contracted ``classical'' algebras.
description: 19 pages, Latex
Thermo-chemical fractionation (TCF) of lignocellulosic biomass
Creators: name: Heeres, Hans
Publisher: name: Zenodo
Year: 2019
Subjects: thermochemical fractionation
biorefinery
pyrolysis
fast pyrolysis
thermochemical biorefinery
bioeconomy

description: 'Developing a pyrolysis based biorefinery' was the second in a series of webinars organised by the EU-funded Bio4Products project (www.bio4products.eu). The webinar features the following presentations: Frederik Ronsse, Ghent University - Introduction to fast pyrolysis: how does it work and why it should be used Gerhard Muggen, BTG-BTL Biomass-to-liquid - The current market status of pyrolysis plants in Europe: a success story Paul de Wild, TNO - Fractional condensation of biomass pyrolysis vapours Hans Heeres, BTG Biomass Technology Group - State of the art in fast pyrolysis oil fractionation
Short-range interactions in a two-electron system: energy levels and magnetic properties
Creators: name: da Silva, L. G. G. V. Dias
name: de Aguiar, M. A. M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The problem of two electrons in a square billiard interacting via a finite-range repulsive Yukawa potential and subjected to a constant magnetic field is considered. We compute the energy spectrum for both singlet and triplet states, and for all symmetry classes, as a function of the strength and range of the interaction and of the magnetic field. We show that the short-range nature of the potential suppresses the formation of ``Wigner molecule'' states for the ground state, even in the strong interaction limit. The magnetic susceptibility $χ(B)$ shows low-temperature paramagnetic peaks due to exchange induced singlet-triplet oscillations. The position, number and intensity of these peaks depend on the range and strength of the interaction. The contribution of the interaction to the susceptibility displays paramagnetic and diamagnetic phases as a function of $T$.
description: 12 pages,6 figures; to appear in Phys. Rev. B
Das Liegenschaftskataster in NRW – Datenerhebung und Bereitstellung von Flächeninformationen
Creators: name: Oesterreich, Marco
Publisher: name: Zenodo
Year: 2023
Subjects: Liegenschaftskataster
Flächennutzung
Tatsächliche Nutzung
ALKIS

description: Präsentation der Bezirksregierung Köln, Geobasis NRW anlässlich des vierten Begleitkreises des UBA-Projektes "Konsistenz und Aussagefähigkeit von Flächendaten".
Study of energy deposition patterns in hadron calorimeter for prompt and displaced jets using convolutional neural network
Creators: name: Bhattacherjee, Biplob
name: Mukherjee, Swagata
name: Sengupta, Rhitaja
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Sophisticated machine learning techniques have promising potential in search for physics beyond Standard Model in Large Hadron Collider (LHC). Convolutional neural networks (CNN) can provide powerful tools for differentiating between patterns of calorimeter energy deposits by prompt particles of Standard Model and long-lived particles predicted in various models beyond the Standard Model. We demonstrate the usefulness of CNN by using a couple of physics examples from well motivated BSM scenarios predicting long-lived particles giving rise to displaced jets. Our work suggests that modern machine-learning techniques have potential to discriminate between energy deposition patterns of prompt and long-lived particles, and thus, they can be useful tools in such searches.
description: 32 pages, 17 figures; version accepted for publication in JHEP
Scaling limit of stochastic 2D Euler equations with transport noises to the deterministic Navier-Stokes equations
Creators: name: Flandoli, Franco
name: Galeati, Lucio
name: Luo, Dejun
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We consider a family of stochastic 2D Euler equations in vorticity form on the torus, with transport type noises and $L^2$-initial data. Under a suitable scaling of the noises, we show that the solutions converge weakly to that of the deterministic 2D Navier--Stokes equations. Consequently, we deduce that the weak solutions of the stochastic 2D Euler equations are approximately unique and "weakly quenched exponential mixing".
description: 26 pages
Early childhood, family support and health care services: An evidence review
Creators: name: Moore, Tim
Publisher: name: Murdoch Childrens Research Institute
Year: 2019
Subjects: Health Sciences

description: The City of Port Phillip is developing a new Children’s Services policy to inform its provision of early year’s services. The Centre for Community Child Health was commissioned to provide the City with a summary of the most significant evidence to inform this policy, with a particular focus on the provision of early childhood education services (birth to 5), playgroups and access to toys, especially for children from vulnerable families. This paper includes the following: 1. A brief overview of evidence regarding the nature and importance of the early years and the factors that shape child and family functioning. 2. The evidence on early childhood and parenting services, including antenatal and home visiting services, child care, playgroups, toy libraries, and preschool education programs. 3. An analysis of the evidence regarding the key features of effective early childhood, family support and health service systems. 4. Considerations for future development of early childhood, family support and health care services.
A Remark on Formal KMS States in Deformation Quantization
Creators: name: Bordemann, Martin
name: Roemer, Hartmann
name: Waldmann, Stefan
Publisher: name: arXiv
Year: 1998
Subjects: subject: Quantum Algebra (math.QA)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: In the framework of deformation quantization we define formal KMS states on the deformed algebra of power series of functions with compact support in phase space as C[[λ]]-linear functionals obeying a formal variant of the usual KMS condition known in the theory of C^*-algebras. We show that for each temperature KMS states always exist and are up to a normalization equal to the trace of the argument multiplied by a formal analogue of the usual Boltzmann factor, a certain formal star exponential.
description: 11 pages, LaTeX2e
Data and Code from: The importance of cellular-scale viral dynamics in bat reservoirs for emerging zoonotic disease
Creators: name: Brook, Cara
name: Boots, Mike
name: Kartik Chandran
name: Dobson, Andrew P.
name: Drosten, Christian
name: Graham, Andrea L.
name: Grenfell, Bryan T.
name: Müller, Marcel A.
name: Ng, Melinda
name: Linfa Wang
name: Anieke Van Leeuwen
Publisher: name: figshare
Year: 2019
Subjects: subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 60207 Population Ecology
subject: FOS: Biological sciences

description: We here present Supplementary Information, including all raw and processed image files, code, datasets, and figures associated with the manuscript "Within-host dynamics of virulent viruses in bat reservoirs for emerging zoonotic disease", available on BioRxiv.
title: Exploring what Being and Becoming a Global Citizen Means in Contemporary Universities: International Industry Key Informant and Mobility Student Perspectives
Creators: name: Lilley, Kathleen
Publisher: name: Griffith University
Year: 2013
Subjects: subject: Global citizens
subject: Educating global citizens

description: The nature of contemporary society is characterised by global complexity, change and ongoing challenges. Flexible and adaptive local and global employees of the future need to be equipped with a global mindset and disposition that extends beyond competencies and vocational skills. Educating global citizens is a popular aim of contemporary universities, yet there is little organisational evidence showing how the concept translates to practice. The overarching question explored in the research program was What does being and becoming a ‘global citizen’ mean in contemporary universities from concept to practice? Two studies gathered in-depth information from international industry key informants and international mobility students through semi-structured interviews. The integrated findings extend our understanding of the philosophical and theoretical foundations of the global citizen, as well as providing a clearer understanding of the role and responsibility of the university. The studies were designed to capture multiple perspectives to build an explanation of the global citizen and reveal new knowledge that could inform the internationalisation of the curriculum (IoC). Study One examined key informant perspectives of the conceptual and practical aspects of the global citizen, and the university role in and responsibility for translating the aim of educating global citizens into practice. Study Two explored Australian and European mobility students’ experiences, focusing specifically on their stories of change, personal growth and development, as well as their mindset for thinking during the change process. The integrated analysis of findings provides considerable insight into what being and becoming a global citizen means in contemporary universities.
Systematic Opacity Calculations for Kilonovae
Creators: name: Tanaka, Masaomi
name: Kato, Daiji
name: Gaigalas, Gediminas
name: Kawaguchi, Kyohei
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Coalescence of neutron stars gives rise to kilonova, thermal emission powered by radioactive decays of freshly synthesized r-process nuclei. Although observational properties are largely affected by bound-bound opacities of r-process elements, available atomic data have been limited. In this paper, we study element-to-element variation of the opacities in the ejecta of neutron star mergers by performing systematic atomic structure calculations of r-process elements for the first time. We show that the distributions of energy levels tend to be higher as electron occupation increases for each electron shell due to the larger energy spacing caused by larger effects of spin-orbit and electron-electron interactions. As a result, elements with a fewer number of electrons in the outermost shells tend to give larger contributions to the bound-bound opacities. This implies that Fe is not representative for the opacities of light r-process elements. The average opacities for the mixture of r-process elements are found to be kappa ~ 20-30 cm^2 g^{-1} for the electron fraction of Ye < 0.20, kappa ~ 3-5 cm^2 g^{-1} for Ye = 0.25-0.35, and kappa ~ 1 cm^2 g^{-1} for Ye = 0.40 at T = 5,000-10,000 K, and they steeply decrease at lower temperature. We show that, even with the same abundance or Ye, the opacity in the ejecta changes with time by one order of magnitude from 1 to 10 days after the merger. Our radiative transfer simulations with the new opacity data confirm that ejecta with a high electron fraction (Ye >~ 0.25, with no lanthanide) are needed to explain the early, blue emission in GW170817/AT2017gfo while lanthanide-rich ejecta (with a mass fraction of lanthanides ~ 5 x 10^{-3}) reproduce the long-lasting near-infrared emission.
description: 29 pages, 18 figures, accepted for publication in MNRAS
Securing Cloud Infrastructure Using Policy-Based Access Control in Cybersecurity
Creators: name: R Krubagaran, K Padmavathi, M Gopi Vinayagam
Publisher: name: Zenodo
Year: 2025

description: This abstract explores the integration of PBAC in cloud environments as a cybersecurity frameworkthat ensures only authorized users and devices access critical resources. By using context-aware policies,PBAC enhances the granularity of access control, minimizes the risks associated with privilege escalation,and mitigates potential threats like unauthorized data access, insider attacks, and external breaches. Thepaper highlights how PBAC can complement traditional security mechanisms, such as identity and accessmanagement (IAM), to provide a more adaptive and scalable approach to cloud security, improvingcompliance with industry regulations while safeguarding against emerging cyber threats.
Pachyneuridae Schiner 1864
Creators: name: Sinclair, Bradley J.
name: Borkent, Art
name: Wood, D. Monty
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Pachyneuridae

description: PACHYNEURIDAE   Description (Fig. 3D)
 Testis: The testis is slender, sac-like, rounded anteriorly, and tapered posteriorly.
 Epididymis: Not differentiated.
 Vas deferens: These ducts extend posteriorly to the base of a large accessory gland complex and then arch and unite weakly medially (Fig. 3D). The vasa deferentia extend anteriorly as twin ducts closely applied to each other, before entering the anterior apex of the accessory gland complex. Layers of spermatozoa filling the entire ducts were observed in fresh specimens.
 Accessory gland and seminal vesicle: A single large, rounded gland is present in Pachyneura fasciata Zetterstedt, referred to here as the accessory gland complex. The gland remains divided medially and at least two distinct chambers are visible on each side. No seminal vesicle is differentiated.
 Ejaculatory duct: This duct remains paired upon exiting the accessory gland complex and is relatively short, slightly longer than one-half length of the accessory gland complex.
 Ejaculatory apodeme, sperm pump, and aedeagus: The external genitalia of Pachyneura fasciata was illustrated in Wood (1991: fig. 7) with the various components shown in different colours. The ejaculatory apodeme is a small concave plate fused to the anterior end of the mostly sclerotized aedeagus and consequently the sperm pump is reduced. The apex of the aedeagus (phallotrema) is U-shaped and quite narrow.
 Remarks: The male genital tract of Pachyneura Zetterstedt is here described and illustrated for the first time. The ejaculatory apodeme no longer functions as a piston in Pachyneura, but probably assists in drawing the spermatophore out and into the female genital chamber as in Bibionidae (see below).
description: Published as part of Sinclair, Bradley J., Borkent, Art & Wood, D. Monty, 2007, The male genital tract and aedeagal components of the Diptera with a discussion of their phylogenetic significance, pp. 711-742 in Zoological Journal of the Linnean Society 150 (4) on page 720, DOI: 10.1111/j.1096-3642.2007.00314.x, http://zenodo.org/record/5432328
Fragebogen zu Praktikumskompetenzen (PraKo): Erforschung naturwissenschaftlicher Praktika
Creators: name: Rehfeldt, Daniel
name: Mühlenbruch, Tobias
name: Nordmeier, Volkhard
Publisher: name: Freie Universität Berlin
Year: 2015
Subjects: subject: 300 Sozialwissenschaften::370 Bildung und Erziehung

description: Im Rahmen des Projekts Technology SUPPORTed Labs (TSL) sollen naturwissenschaftliche Praktika durch den Einsatz multimedialer Anwendungen unterstützt werden. Voraussetzung für eine objektive und adressatengerechte Intervention ist eine Bedarfsanalyse mit den Teilnehmenden, Betreuenden und Leitenden des jeweiligen Praktikums. Nachdem im Nebenfachpraktikum der Physik bereits erfolgreich der Bedarf erhoben wurde, folgte im zweiten Schritt das Spektroskopie-Praktikum der physikalischen Chemie. In diesem Beitrag werden die Ergebnisse des quantitativen Teils der Bedarfsanalyse vorgestellt und die Vergleichbarkeit mit dem physikalischen Praktikum an Hand von dort identifizierten Problemfeldern untersucht (Theorie-Praxis-Transfer, Arbeitsbelastung, Gerätekenntnisse etc.). Kombiniert mit dem Vergleich der Verlaufsstrukturen kann so die Übertragbarkeit der Befunde physikalischer Praktika auf Praktika der Chemie diskutiert werden.
Spin-Orbit Coupling, Antilocalization, and Parallel Magnetic Fields in Quantum Dots
Creators: name: Zumbuhl, D. M.
name: Miller, J. B.
name: Marcus, C. M.
name: Campman, K.
name: Gossard, A. C.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate antilocalization due to spin-orbit coupling in ballistic GaAs quantum dots. Antilocalization that is prominent in large dots is suppressed in small dots, as anticipated theoretically. Parallel magnetic fields suppress both antilocalization and also, at larger fields, weak localization, consistent with random matrix theory results once orbital coupling of the parallel field is included. In situ control of spin-orbit coupling in dots is demonstrated as a gate-controlled crossover from weak localization to antilocalization.
description: related papers at http://marcuslab.harvard.edu
Data and Code from: Accelerated viral dynamics in bat cell lines, with implications for zoonotic emergence
Creators: name: Brook, Cara
name: Boots, Mike
name: Kartik Chandran
name: Dobson, Andrew P.
name: Drosten, Christian
name: Graham, Andrea L.
name: Grenfell, Bryan T.
name: Müller, Marcel A.
name: Ng, Melinda
name: Linfa Wang
name: Anieke Van Leeuwen
Publisher: name: figshare
Year: 2020
Subjects: subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 60207 Population Ecology
subject: FOS: Biological sciences

description: We here present Supplementary Information, including all raw and processed image files, code, datasets, and figures associated with the manuscript "Accelerated viral dynamics in bat cell lines, with implications for zoonotic emergence", available on BioRxiv.
Data and Code from: The importance of cellular-scale viral dynamics in bat reservoirs for emerging zoonotic disease
Creators: name: Brook, Cara
name: Boots, Mike
name: Kartik Chandran
name: Dobson, Andrew P.
name: Drosten, Christian
name: Graham, Andrea L.
name: Grenfell, Bryan T.
name: Müller, Marcel A.
name: Ng, Melinda
name: Linfa Wang
name: Anieke Van Leeuwen
Publisher: name: figshare
Year: 2020
Subjects: subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 60207 Population Ecology
subject: FOS: Biological sciences

description: We here present Supplementary Information, including all raw and processed image files, code, datasets, and figures associated with the manuscript "Within-host dynamics of virulent viruses in bat reservoirs for emerging zoonotic disease", available on BioRxiv.
Non-standard matrix formats of Lie superalgebras
Creators: name: Delduc, F.
name: Gieres, F.
name: Gourmelen, S.
name: Theisen, S.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Group Theory (math.GR)
subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The standard format of matrices belonging to Lie superalgebras consists of partitioning the matrices into even and odd blocks. In this paper, we study other possible matrix formats and in particular the so-called diagonal format which naturally occurs in various applications, e.g. in superconformal field theory, superintegrable models, for super W-algebras and quantum supergroups.
The Use of Instrumentation in Grammar Engineering
Creators: name: Broeker, Norbert
Publisher: name: arXiv
Year: 2000
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences
subject: D.2.5

description: This paper explores the usefulness of a technique from software engineering, code instrumentation, for the development of large-scale natural language grammars. Information about the usage of grammar rules in test and corpus sentences is used to improve grammar and testsuite, as well as adapting a grammar to a specific genre. Results show that less than half of a large-coverage grammar for German is actually tested by two large testsuites, and that 10--30% of testing time is redundant. This methodology applied can be seen as a re-use of grammar writing knowledge for testsuite compilation.
description: 7 pages, LaTeX2e, correction includes bibliography
The Inflaton Portal to a Highly decoupled EeV Dark Matter Particle
Creators: name: Heurtier, Lucien
name: Huang, Fei
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We explore the possibility that the dark-matter relic abundance is generated in a context where the inflaton is the only mediator between the visible and the hidden sectors of our universe. Due to the relatively large mass of the inflaton field, such a portal leads to an extremely feeble interaction between the dark and the visible sectors suggesting that the dark sector cannot reach any thermal equilibrium with the visible sector. After the two sectors are populated by the decay of the inflaton, a heavy dark-matter particle thermally decouples within the dark sector. Later, a lighter dark particle, whose decay width is naturally suppressed by the inflaton propagator, decays into the visible sector after it dominates the energy density of universe. This process dilutes the dark-matter relic density by injecting entropy in the visible sector. We show that an inflaton mass of $\mathcal{O}(10^{13})$ GeV together with couplings of order one are fully compatible with a dark-matter relic abundance $Ωh^2\sim 0.1$. As a general feature of the model, the entropy dilution mechanism is accompanied by a period of early matter domination, which modifies the amount of e-folds of inflation necessary to accommodate Planck data. Moreover, the coupling of the inflaton to the dark and visible sectors brings loop contributions to the inflationary potential which can destabilize the inflation trajectory. Considering all these complementary constraints, we show that, in the context of a plateau-inflation scenario such as the $α$-attractor model, the inflaton can constitute a viable mediator between the visible sector and a $\sim 10$ EeV dark-matter candidate. Furthermore, we show that improved constraints on the tensor-to-scalar ratio and spectral index could potentially rule out dark-matter scenarios of this sort in the future.
description: 18 pages, 6 figures, new version after publication
Magnetic Field Induced Spin Polarization of AlAs Two-dimensional Electrons
Creators: name: De Poortere, E. P.
name: Tutuc, E.
name: Shkolnikov, Y. P.
name: Vakili, K.
name: Shayegan, M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Two-dimensional (2D) electrons in an in-plane magnetic field become fully spin polarized above a field B_P, which we can determine from the in-plane magnetoresistance. We perform such measurements in modulation-doped AlAs electron systems, and find that the field B_P increases approximately linearly with 2D electron density. These results imply that the product |g*|m*, where g* is the effective g-factor and m* the effective mass, is a constant essentially independent of density. While the deduced |g*|m* is enhanced relative to its band value by a factor of ~ 4, we see no indication of its divergence as 2D density approaches zero. These observations are at odds with results obtained in Si-MOSFETs, but qualitatively confirm spin polarization studies of 2D GaAs carriers.
description: 4 pages, 5 figures
An Experimental Study of Self-regulated Learning Strategies Application in Moocs
Creators: Hsu, Shu-Yi
Publisher: name: Columbia University
Year: 2021
Subjects: Instructional systems--Design
Educational psychology
Educational evaluation
Internet in higher education
College dropouts--Research
Open learning--Evaluation

description: Online learning has been widely adopted in higher education to reach students who typically would not have a chance to complete accredited courses (Kentnor, 2015). Massive open online courses (MOOC), which is a type of online learning, makes it easier for people to take university courses with internet access and a fraction of cost compared to traditional residential programs (Reich, 2020). MOOCs also become popular for those who want to increase their professional profile or advance their academic career (Pheatt, 2017). However, online learning has long been criticized for its universally low completion rates, high dropout rate and poor learning performance (Almeda et al., 2018). This phenomenon is more exacerbated in MOOC environments. Historical studies have attempted to support learner self-regulated learning (SRL) activities in order to enhance completion rates and academic outcomes. Prior studies have conducted pre-course questionnaires as inexpensive SRL interventions to prompt learners as SRL support(Kizilcec et al., 2017, Kizilcec & Cohen, 2017; Kizilcec et al., 2020; Yeomans & Reich, 2017). Yet, these one-time-only, short-term interventions only yield limited or no effects. This study implemented and evaluated the effectiveness of an alternative intervention, the self-regulated learning user interface (SRLUI), to support students' self-regulated learning (SRL) strategies in a MOOC environment. SRLUI is based on Zimmerman’s (2000) SRL model and develops learner’s SRL skills through longitudinal, recurring practice of multiple SRL dimensions activities (i.e., goal setting, self-evaluation, task planning, setting reminders) with content-specific information. The study utilized a randomized experimental design and implemented SRLUI in eight MOOCs with a total of 808 participants. The results indicated a higher usage rate of SRL support compared to the historical findings, which may be owing to the SRL support embedded into the learning activities throughout the course. Also, the study showed improved learning outcomes for a subgroup of participants, but there was no reduction in the number of dropouts. Based on the findings of this study, it is recommended that a personalized SRL tool featuring content-specific information should be embedded in online courses. The research design also recorded direct cognitive records of learners' SRL activities, which yield stronger validity compared to trace and survey data. The result suggested SRLUI might only benefit a subgroup of learners with passing grades. Thus, it is recommended that future research identify various subgroups of learner profiles in MOOC environments and to consider how to reach and support learners in different subgroups.
The physical processes causing nocturnal rainfall over northwest Australia and their representation in high‐ and low‐resolution models with parametrized convection
Creators: name: D. Ackerley
name: C.E Birch
name: L. Garcia-Carreras
name: S.L Lavender
name: Weller, Evan
Publisher: name: Monash University
Year: 2019
Subjects: subject: Atmospheric Sciences
subject: FOS: Earth and related environmental sciences
subject: Climate Science

description: The diurnal cycle of precipitation in the Tropics is represented poorly in general circulation models (GCMs), which is primarily attributed to the representation of moist convection. Nonetheless, in areas where precipitation is driven by the diurnal cycle in the synoptic‐scale flow, GCMs may represent that circulation–rainfall relationship well. Over northwest Australia there is a tendency for precipitation to peak overnight where the diurnal cycle of the heat low circulation leads to the development of strong convergence after local sunset. In order to assess the heat low–precipitation relationship in more detail, a case‐study approach is used to investigate the actual ‘weather’ that is responsible for night‐time precipitation. The study shows that, where there is sufficient moisture, precipitation typically forms along convergence zones that coincide with boundaries between relatively moist and dry air masses (termed a ‘dryline’). A convergence line detection algorithm is then used to identify the fraction of observed nocturnal rainfall that is associated with any convergence zones. The same evaluation is then undertaken for a relatively high‐resolution (MetUM) and low‐resolution (ACCESS1.0) GCM, which simulate rainfall‐generation processes similar to the observations. Finally, the convergence line detection/precipitation algorithm is run on other GCM data (from CMIP5) to see whether the same processes occur despite different model configurations (i.e. physics), which appears to be the case.
"This is the pre-peer reviewed version of the following article: [Ackerley, D. , Birch, C. E., Garcia‐Carreras, L. , Lavender, S. L. and Weller, E. (2018), The physical processes causing nocturnal rainfall over northwest Australia and their representation in high‐ and low‐resolution models with parametrized convection. Q.J.R. Meteorol. Soc., 144: 511-528. doi:10.1002/qj.3223], which has been published in final form. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions."
An Examination of the Writing Strategies Used by Deaf and Hearing Adults: Similarities and Differences in Cognitive, Linguistic and Conventional Components
Creators: Nicolarakis, Onudeah Desiree
Publisher: name: Columbia University
Year: 2020
Subjects: Deaf--Means of communication
Deaf--Education
Deaf--Books and reading
Education, Bilingual--Research
Language and languages--Study and teaching--Ability testing
Reading comprehension--Ability testing

description: This study is a mixed-methods analysis of writing processes and the reading and language experiences of d/Deaf and hearing participants. The sample consisted of three groups of 15 adults each, identified as either high-achieving d/Deaf readers, high-achieving hearing readers, or struggling d/Deaf readers. The purpose of this study is to identify factors related to writing achievement and to explore themes that emerge within an asset-based/anti-deficit, d/Deaf bilingualism/Deaf Gain theoretical framework. Five quantitative measures are used in the study: a reading comprehension assessment, a background questionnaire, a handwriting speed test, a phonological skills assessment, and a writing assessment measuring the cognitive, linguistic, and conventional components. Scores from the writing assessment are correlated with demographic statistics and other assessments to identify factors of writing achievement. Similarities and differences among groups of participants are tested with MANOVAs to identify mean differences in scores according to hearing status (d/Deaf/hearing) and reading achievement level (high-achieving/struggling). Qualitative data were gathered by collecting, reviewing, coding, and identifying overarching themes in the interview transcripts within an asset-based/anti-deficit, d/Deaf Bilingualism/Deaf Gain theoretical framework. The findings show that high-achieving d/Deaf participants performed at levels similar to those attained by high-achieving hearing participants, and that for all participants, reading comprehension, phonological skills, handwriting speed, and personal factors were related to writing achievement. Similarities and differences in reading and writing ability were also found. Access to language and explicit instructional approaches emerged as overarching themes in writing effectively.
Conicobruchus medaniensis
Creators: name: Delobel, Alex
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Chrysomelidae
Conicobruchus
Conicobruchus medaniensis

description: Conicobruchus medaniensis (Decelle, 1982)
 Material examined (4 spec.). YEMEN: SOCOTRA ISLAND: Noged plain,Abataro, border of sand dunes and shrubland, 12°22.1′N 54°03.4′E, 20 m, 12.–13.vi.2012, 1 JJ 3 ♀♀, J. Bezděk, J. Hájek, V. Hula, P. Kment, I. Malenovský, J. Niedobová & L. Purchart leg. (NMPC).
 Distribution. Kenya, Saudi Arabia, Sudan, Tanzania, United Arab Emirates, Yemen. First record from Socotra.
 Comments. In Tanzania, Conicobruchus medaniensis was reared from Indigofera tanganyikensis Baker f. (Fabaceae) pods (B. Le Rü, pers. comm. 2012). At the sampled locality, two species of Indigofera represent the dominant plant species: I. oblongifolia Forssk. and I. pseudointricata Gillett (P. Kment, pers. comm.).
description: Published as part of Delobel, Alex, 2012, Bruchinae (Coleoptera: Chrysomelidae) from Socotra Island, pp. 373-380 in Acta Entomologica Musei Nationalis Pragae 52 on page 379, DOI: 10.5281/zenodo.5339503
title: In Vitro Imaging of Trypanosoma cruzi Host Infection Systems for Evaluation of Compound Activity
Creators: name: Sykes, Melissa Louise
Publisher: name: Griffith University
Year: 2014
Subjects: subject: Trypanosoma cruzi Host Infection
subject: In Vitro Imaging
subject: Chagas disease
subject: Triatominae vector

description: Chagas disease, caused by the protozoan parasite, Trypanosoma cruzi, is a leading cause of infectious myocarditis in the world and a major cause of morbiditiy and mortality in endemic areas, in Central and South America. The parasite is not limited to the human host and has a number of mammalian reservoirs. Besides the Triatominae vector, transmission can occur orally from contaminated food, congenital infection or blood and organ donations, meaning that the disease has also spread to non-endemic areas. There are two stages of Chagas disease, the acute and chronic stages. The acute stage may present as a non-specific febrile disease, however during the chronic phase, heart tissue becomes infected, and parasite persistence and autoimmunity results in heart disease, often causing mortality. The drugs used to treat Chagas disease have associated toxicity and in addition, there are doubts about their efficacy in treating the chronic disease. Currently there are few compounds that are clinical candidates for Chagas disease, it is therefore essential that new compounds that are active against T. cruzi are identified and evaluated for their potential to progress through the drug discovery pipeline.
Climate change behaviours: Improving the use of psychology and communication models in mitigation campaigns
Creators: name: LUCY MAJELLA RICHARDSON
Publisher: name: Monash University
Year: 2019
Subjects: subject: 200104 Media Studies
subject: FOS: Media and communications
subject: 170113 Social and Community Psychology
subject: FOS: Psychology

description: This research developed and tested an integrated model of climate change mitigation behaviour that specifically focused on campaign relevant factors, and interviewed campaign designers to examine industry uptake of research and any associated issues. It highlights strong potential for value from the integrated model. Practitioners exhibited high variability in the use of communication and behavioural science research, with diverse barriers including lack of recognition of the existence of relevant research, difficulty identifying the most relevant research, and difficulty selecting suitable behaviour models. Despite these barriers, practitioners have developed coping mechanisms including strong networks to support knowledge sharing and joint outcomes.
Mathematical Sensemaking as Seeking Coherence between Calculations and Concepts: Instruction and Assessments for Introductory Physics
Creators: name: Kuo, Eric
name: Hull, Michael M.
name: Elby, Andrew
name: Gupta, Ayush
Publisher: name: arXiv
Year: 2019
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: What kind of problem-solving instruction can help students apply what they have learned to solve the new and unfamiliar problems they will encounter in the future? We propose that mathematical sensemaking, the practice of seeking coherence between formal mathematics and conceptual understanding, is a key target of successful physics problem-solving instruction. However, typical assessments tend to measure understanding in more disjoint ways. To capture coherence-seeking practices in student problem solving, we introduce an assessment framework that highlights opportunities to use these problem-solving approaches more flexibly. Three assessment items embodying this calculation-concept crossover framework illustrate how coherence can drive flexible problem-solving approaches that may be more efficient, insightful, and accurate. These three assessment items were used to evaluate the efficacy of an instructional approach focused on developing mathematical-sensemaking skills. In a quasi-experimental study, three parallel lecture sections of first-semester, introductory physics were compared: two mathematical sensemaking sections, with one having an experienced instructor (MS) and one a novice instructor (MS-nov), and a traditionally-taught section acted as a control group (CTRL). On the three crossover assessment items, mathematical sensemaking students used calculation-concept crossover approaches more and generated more correct solutions than CTRL students. Student surveyed epistemological views toward problem-solving coherence at the end of the course predicted their crossover approach use but did not fully account for the differences in crossover approach use between the MS and CTRL groups. These results illustrate new instructional and assessment frameworks for research on mathematical sensemaking and adaptive problem-solving expertise.
On the Connectivity of Cobordisms and Half-Projective TQFT's
Creators: name: Kerler, Thomas
Publisher: name: arXiv
Year: 1996
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider a generalization of the axioms of a TQFT, so called half-projective TQFT's, with an anomaly, $x^μ$, in the composition law. $μ$ is a coboundary on the cobordism categories with non-negative, integer values. The element $x$ of the ring over which the TQFT is defined does not have to be invertible. In particular, it may be 0. This modification makes it possible to extend quantum-invariants, which vanish on $S^1\times S^2$, to non-trivial TQFT's. (A TQFT in the sense of Atiyah with this property has to be trivial all together). Under a few natural assumptions the notion of a half-projective TQFT is shown to be the only possible generalization. Based on separate work with Lyubashenko on connected TQFT's, we construct a large class of half-projective TQFT's with $x=0$. Their invariants vanish on $S^1\times S^2$, and they coincide with the Hennings invariant for non-semisimple Hopf algebras. Several toplogical tools that are relevant for vanishing properties of such TQFT's are developed. They are concerned with connectivity properties of cobordisms, as for example maximal non-separating surfaces. We introduce in particular the notions of ``interior'' homotopy and homology groups, and of coordinate graphs, which are functions on cobordisms with values in the morphisms of a graph category. For applications we will prove that half-projective TQFT's with $x=0$ vanish on cobordisms with infinite interior homology, and we argue that the order of divergence of the TQFT on a cobordism in the ``classical limit'' can be estimated by the rank of its maximal free interior group.
description: 55 pages, Latex
title: Investigating the Genetic Basis of Plumage Variation in the Australian Magpie, Cracticus tibicen
Creators: name: Dobson, Ana Elizabeth
Publisher: name: Griffith University
Year: 2017
Subjects: subject: Australian magpie genetics
subject: Color traits, Genetics
subject: Magpies, Plumage variation
subject: Cracticus tibicen

description: Many species exhibit some form of colour variation between groups or individuals, and studies of such colour variation, its genetic basis and functional importance can contribute unique insights into the evolutionary, ecological, demographic and genetic processes affecting the diversity of life. Through the examination of the genetics underlying colour traits, the relative importance of different selective and demographic processes in the evolution and maintenance of a trait can be inferred, enabling scientists to gain a better understanding of what drives evolutionary change in different organisms and environments. Such studies also assist in bridging the gaps in our knowledge about the interactions between genetics and ecology that are involved in phenotypic variation. Understanding the pathways linking genetic and regulatory changes to phenotypic change and evolutionary change through time contributes to our knowledge about how species develop and evolve. The Australian magpie (Cracticus tibicen), is a group-living and territorial passerine bird with a characteristic pied appearance of strongly contrasting patches of black and white plumage. The species has several different plumage forms, delineated by the colour and/or pattern of back feathers; these plumage forms hybridise where their distributions overlap. Distributions of plumage forms are highly discordant with patterns of phylogeographic structure found in this species, making a scenario of allopatric divergence followed by secondary recontact at hybrid zones highly unlikely.