cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Determination of Nano-sized Adsorbate Mass in Solution using Mechanical Resonators: Elimination of the so far Inseparable Liquid Contribution
Creators: name: Armanious, Antonius
name: Agnarsson, Björn
name: Lundgren, Anders
name: Zhdanov, Vladimir P.
name: Höök, Fredrik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Assumption-free mass quantification of nanofilms, nanoparticles, and (supra)molecular adsorbates in liquid environment remains a key challenge in many branches of science. Mechanical resonators can uniquely determine the mass of essentially any adsorbate; yet, when operating in liquid environment, the liquid dynamically coupled to the adsorbate contributes significantly to the measured response, which complicates data interpretation and impairs quantitative adsorbate mass determination. Employing the Navier-Stokes equation for liquid velocity in contact with an oscillating surface, we show that the liquid contribution can be eliminated by measuring the response in solutions with identical kinematic viscosity but different densities. Guided by this insight, we used quartz crystal microbalance (QCM), one of the most widely-employed mechanical resonator, to demonstrate that kinematic-viscosity matching can be utilized to accurately quantify the dry mass of systems such as adsorbed rigid nanoparticles, tethered biological nanoparticles (lipid vesicles), as well as highly hydrated polymeric films. The same approach applied to the simultaneously measured energy dissipation made it possible to quantify the mechanical properties of the adsorbate and its attachment to the surface, as demonstrated by, for example, probing the hydrodynamic stablization induced by nanoparticles crowding. Finally, we envision that the possibility to simultaneously determine the dry mass and mechanical properties of adsorbates as well as the liquid contributions will provide the experimental tools to use mechanical resonators for applications beyond mass determination, as for example to directly interrogate the orientation, spatial distribution, and binding strength of adsorbates without the need for complementary techniques.
description: 22 pages, 7 figures
Landau-Zener transition driven by a slow noise
Creators: name: Luo, Zhu-Xi
name: Raikh, M. E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The effect of a slow noise in non-diagonal matrix element, J(t), that describes the diabatic level coupling, on the probability of the Landau-Zener transition is studied. For slow noise, the correlation time, τ_c, of J(t) is much longer than the characteristic time of the transition. Existing theory for this case suggests that the average transition probability is the result of averaging of the conventional Landau-Zener probability, calculated for a given constant J, over the distribution of J. We calculate a finite-τ_c correction to this classical result. Our main finding is that this correction is dominated by sparse realizations of noise for which J(t) passes through zero within a narrow time interval near the level crossing. Two models of noise, random telegraph noise and gaussian noise, are considered. Naturally, in both models the average probability of transition decreases upon decreasing τ_c. For gaussian noise we identify two domains of this fall-off with specific dependencies of average transition probability on τ_c.
description: 8 pages, 5 figures
How old are bars? Determining the cosmic epoch of bar formation using archeological data of nearby galaxies
Creators: name: de Sá-Freitas, Camila
Publisher: name: Zenodo
Year: 2023

description: The epoch in which galactic discs settle and secular evolution takes place is a major benchmark to test models of galaxy formation and evolution. Yet, this epoch is still largely unknown. Once discs settle and become self-gravitating enough, stellar bars are able to form and act on the evolution of the host galaxy; therefore, determining the ages of bars can shed light on the epoch of disc settling, and on the onset of secular evolution. Nevertheless, until now, timing when bars in nearby galaxies have formed has proven challenging. In this talk, I will present a new methodology for obtaining the bar age together with the first results. In particular, we use integral field spectroscopic (IFS) data from the TIMER survey to disentangle the light of the central region of galaxies and derive independent star formation histories. Since the bar gravitational torques bring gas inwards, it builds nuclear structures that can be used to time when the bar itself formed. I will present the first results of this methodology for the TIMER sample, including the old bar hosted by NGC1433, with an estimated age of 7.5 Gyrs. Additionally, I will present preliminary results showing that bars can be young and recently formed, discs can still be settling in the Local Universe, and how these galaxies compared to the Milky Way. This methodology is applicable to high-resolution IFS data of barred galaxies with bar-built nuclear structures. Thus, in the future we will be able to determine the bar age for a large sample of galaxies, shedding light on the epoch of disc settling and bar formation as a function of stellar mass and other galactic properties.
The FEDHC Bayesian network learning algorithm
Creators: name: Tsagris, Michail
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: 62H22

description: The paper proposes a new hybrid Bayesian network learning algorithm, termed Forward Early Dropping Hill Climbing (FEDHC), devised to work with either continuous or categorical variables. Further, the paper manifests that the only implementation of MMHC in the statistical software \textit{R}, is prohibitively expensive and a new implementation is offered. Further, specifically for the case of continuous data, a robust to outliers version of FEDHC, that can be adopted by other BN learning algorithms, is proposed. The FEDHC is tested via Monte Carlo simulations that distinctly show it is computationally efficient, and produces Bayesian networks of similar to, or of higher accuracy than MMHC and PCHC. Finally, an application of FEDHC, PCHC and MMHC algorithms to real data, from the field of economics, is demonstrated using the statistical software \textit{R}.
description: This is a preprint of the paper published in Mathematics
Cosmological implications of modified gravity induced by quantum metric fluctuations
Creators: name: Liu, Xing
name: Harko, Tiberiu
name: Liang, Shi-Dong
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the cosmological implications of modified gravities induced by the quantum fluctuations of the gravitational metric. If the metric can be decomposed as the sum of the classical and of a fluctuating part, of quantum origin, then the corresponding Einstein quantum gravity generates at the classical level modified gravity models with a nonminimal coupling between geometry and matter. As a first step in our study, after assuming that the expectation value of the quantum correction can be generally expressed in terms of an arbitrary second order tensor constructed from the metric and from the thermodynamic quantities characterizing the matter content of the Universe, we derive the (classical) gravitational field equations in their general form. We analyze in detail the cosmological models obtained by assuming that the quantum correction tensor is given by the coupling of a scalar field and of a scalar function to the metric tensor, and by a term proportional to the matter energy-momentum tensor. For each considered model we obtain the gravitational field equations, and the generalized Friedmann equations for the case of a flat homogeneous and isotropic geometry. In some of these models the divergence of the matter energy-momentum tensor is non-zero, indicating a process of matter creation, which corresponds to an irreversible energy flow from the gravitational field to the matter fluid, and which is direct consequence of the nonminimal curvature-matter coupling. The cosmological evolution equations of these modified gravity models induced by the quantum fluctuations of the metric are investigated in detail by using both analytical and numerical methods, and it is shown that a large variety of cosmological models can be constructed, which, depending on the numerical values of the model parameters, can exhibit both accelerating and decelerating behaviors.
description: 21 pages, 11 figures, accepted for publication in EPJC
Geometric Models and Variation of Weights on Moduli of Parabolic Higgs Bundles over the Riemann Sphere: a Case Study
Creators: name: Meneses, Claudio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: Complex Variables (math.CV)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 14H60, 14D22, 32G13, 22E25

description: We construct explicit geometric models for moduli spaces of semi-stable strongly parabolic Higgs bundles over the Riemann sphere, in the case of rank two, four marked points, arbitrary degree, and arbitrary weights. The mechanism of construction relies on elementary geometric and combinatorial techniques, based on a detailed study of orbit stability of (in general non-reductive) bundle automorphism groups on certain carefully crafted spaces. The aforementioned techniques are not exclusive to the case we examine, and this work elucidates a general approach to construct arbitrary moduli spaces of semi-stable parabolic Higgs bundles in genus 0, which is encoded into the combinatorics of weight polytopes. We also present a comprehensive analysis of the geometric models' behavior under variation of parabolic weights and wall-crossing, which is concentrated on their nilpotent cones.
Mentoring Partnerships in Science Education
Creators: name: Schwortz, Andria C.
name: Burrows, Andrea C.
name: Guffey, Sarah Katie
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: The authors use an action research (AR) approach in a collegiate studio physics class to investigate the power of partnerships via conferences as they relate to issues of establishing a student/mentor rapport, empowering students to reduce inequity, and the successes and barriers to hearing students' voices. The graduate teaching assistant (TA, Author 1) conducted one-on-one conferences with 29 students, elicited student opinions about the progress of the course, and talked with faculty, TAs, and an undergraduate supplemental instructor for other sections of the course. At the end of the semester, the students reported increased knowledge of the TA as a person and as an instructor, and vice versa. Sixty-five percent of students reported no interest in changing circumstances to make it easier to talk about personal concerns with the TA. College students reluctantly voiced their opinions about the course, possibly due to the power structure of the classroom. Other TAs in the department expressed mostly disinterest in the project, while faculty members were interested in student learning but skeptical of student empowerment. A case study of one student is presented, wherein his attendance improved in the course and he received additional help outside class, both possibly as a result of the student/TA conferences. Students in this studio physics section were more likely to interact directly with faculty or TAs during lectures, but less likely to do so during lab sessions, than were students in a non-studio physics section.
description: The Version of Record of this manuscript has been published and is available in Educational Action Research, 3 October 2016, http://www.tandfonline.com/, DOI:10.1080/09650792.2016.1221838
Annual reports on external communication results for impact assessment (D.5.12)
Creators: name: Tcherny-Lessenot, Stéphanie
Publisher: name: Zenodo
Year: 2022

description: The objective of this report is to summarize communication actions performed in WP5 to disseminate knowledge about medicines use during pregnancy and lactation and to engage pregnant and breastfeeding women and healthcare professionals (HCPs) in the ConcePTION ecosystem between January and December 2021. The communications actions may have different targets and different messages.
Integrating Long-Term Access into DataPLANT Data Management Workflows
Creators: name: , Gieschke
name: , Rechert
name: Von Suchodoletz,
Publisher: name: Zenodo
Year: 2023
Subjects: long-term access
research data
workflow preservation
emulation
DataPLANT

description: Providing access to research data while upholding the FAIR principles presents unique challenges. To facilitate reuse, it is not enough to just archive the research data itself but accompanying research software, e.g., computational workflows, must be described using metadata and archived as well, for which DataPLANT developed the Annotated Research Context (ARC) specification. This work extends this concept for long-term access to also detect, describe, and preserve implicit software dependencies, e.g., Docker images or host operating system kernels, which otherwise might be no longer available at time of future reuse. It further addresses implicit long-term hardware dependencies using emulation in a generic and descriptive way. It shows that preservation of research software must be an integral part already of development workflows and not an afterthought and shows how existing work can be integrated into DataPLANT’s research data management system to turn an archived ARC into a long-term re-executable ARC.
Improved limit on the $^{225}$Ra electric dipole moment
Creators: name: Bishof, Michael
name: Parker, Richard H.
name: Bailey, Kevin G.
name: Greene, John P.
name: Holt, Roy J.
name: Kalita, Mukut R.
name: Korsch, Wolfgang
name: Lemke, Nathan D.
name: Lu, Zheng-Tian
name: Mueller, Peter
name: O'Connor, Thomas P.
name: Singh, Jaideep T.
name: Dietrich, Matthew R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Background: Octupole-deformed nuclei, such as that of $^{225}$Ra, are expected to amplify observable atomic electric dipole moments (EDMs) that arise from time-reversal and parity-violating interactions in the nuclear medium. In 2015, we reported the first "proof-of-principle" measurement of the $^{225}$Ra atomic EDM. Purpose: This work reports on the first of several experimental upgrades to improve the statistical sensitivity of our $^{225}$Ra EDM measurements by orders of magnitude and evaluates systematic effects that contribute to current and future levels of experimental sensitivity. Method: Laser-cooled and trapped $^{225}$Ra atoms are held between two high voltage electrodes in an ultra high vacuum chamber at the center of a magnetically shielded environment. We observe Larmor precession in a uniform magnetic field using nuclear-spin-dependent laser light scattering and look for a phase shift proportional to the applied electric field, which indicates the existence of an EDM. The main improvement to our measurement technique is an order of magnitude increase in spin precession time, which is enabled by an improved vacuum system and a reduction in trap-induced heating. Results: We have measured the $^{225}$Ra atomic EDM to be less than $1.4\times10^{-23}$ $e$ cm (95% confidence upper limit), which is a factor of 36 improvement over our previous result. Conclusions: Our evaluation of systematic effects shows that this measurement is completely limited by statistical uncertainty. Combining this measurement technique with planned experimental upgrades we project a statistical sensitivity at the $1\times10^{-28}$ $e$ cm level and a total systematic uncertainty at the $4\times10^{-29}$ $e$ cm level.
Equivariant Toeplitz index theory on odd-dimensional manifolds with boundary
Creators: name: Lim, Johnny
name: Wang, Hang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 47B35, 19K56, 58J30

description: In this paper, we establish an equivariant version of Dai-Zhang's Toeplitz index theorem for compact odd-dimensional spin manifolds with even-dimensional boundary.
description: 26 pages, 1 figure. 2 appendices. Published version
On maximal cliques of Cayley graphs over fields
Creators: name: Yip, Chi Hoi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C69 (05C50, 05E30)

description: We describe a new class of maximal cliques, with a vector space structure, of Cayley graphs defined on the additive group of a field. In particular, we show that in the cubic Paley graph with order $q^3$, the subfield with $q$ elements forms a maximal clique. Similar statements also hold for quadruple Paley graphs and Peisert graphs with quartic order.
description: 12 pages, revised based on referees' suggestions
Polyakov line actions from SU(3) lattice gauge theory with dynamical fermions via relative weights
Creators: name: Höllwieser, Roman
name: Greensite, Jeff
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We extract an effective Polyakov line action from an underlying SU(3) lattice gauge theory with dynamical fermions via the relative weights method. The center-symmetry breaking terms in the effective theory are fit to a form suggested by effective action of heavy-dense quarks, and the effective action is solved at finite chemical potential by a mean field approach. We show results for a small sample of lattice couplings, lattice actions, and lattice extensions in the time direction. We find in some instances that the long-range couplings in the effective action are very important to the phase structure, and that these couplings are responsible for long-lived metastable states in the effective theory. Only one of these states corresponds to the underlying lattice gauge theory.
description: 11 pages, 7 figures, Confinement12 Conference. arXiv admin note: substantial text overlap with arXiv:1603.09654
title: Cinema and commercial space tourism
title: The politics of escapism
titleType: Subtitle
Creators: name: Salem, Bernadette
Publisher: name: Lancaster University
Year: 2020

description: Space tourism has been one of the most enduring tropes in the cinema from the early 1900s until the present day, yet there exists no systematic, comprehensive investigation situating these widely diversified depictions of space tourism within a broader historical context of technological innovation and associated social transformation. The contemporary social climate, whereby commercial space tourism is an emergent possibility, calls for the decolonisation of the term ‘tourism’ and its categorical associations, in order to assess how visions of space tourism within cinematic, science-fiction futures project the history of tourism and its detrimental environmental, commercial, and colonial implications. The written portion of the dissertation uses close-textual-analysis and discursive transcoding as the primary methodologies to identify and investigate five unique trends in the thematic representation of cinematic space tourism, each linked to a distinct ‘moment’ of widespread crisis and transformation. Ultimately, this will contribute to a broader understanding concerning how science-fiction explores social constructions of race, class, and gender. As a practice-based accompaniment to these critical discussions, I relay my findings in a space film which compiles knowledge drawn from film and literature scholarship, as well as from the analysis of the selected case studies
title: Is it still "cycling"? Pedelec-commuting from a social-practice-perspective
Creators: name: Schneider, Paul R.
Publisher: name: Wuppertal Institut für Klima, Umwelt, Energie
Year: 2022
Subjects: subject: 380 Handel, Kommunikation, Verkehr

description: The sales of pedelecs are currently skyrocketing in Germany and in many other places. As a low-carbon means of mobility, pedelecs have the potential to make a substantial contribution to the mobility transition. This thesis employs practice theory as proposed by Shove et al. (2012) to investigate this quickly evolving phenomenon. The analysis is based on interviews with e-bike commuters which were investigated using template analysis and exploratory memos. To obtain a broad picture the practice, a maximum variance sampling strategy was carried out in two cities that vary substantially with regard to velomobility: Wuppertal and Münster. This thesis one hand presents the first encompassing account on the practice elements which commuting by pedelec is composed of. It hence contributes to the debate about the depiction of practices. Furthermore, the thesis finds that pedelec commuting should be conceptualized as a variant of velomobility and not as a variant of motoring or as an independent practice. Yet, the elements integrated in pedelec-commuting are found to clearly differ from those of cycling, so that pedelec-commuting meets the requirements of everyday life much better than commuting on non-electrified bikes. The findings of this thesis suggest several pathways to strengthening this novel practice. The capacity of e-biking to serve mundane trips can for example be supported through the normalization of the use of weather- and transport relevant materials and competences. Deeper linkages with interacting practices from other sectors, such as an integration of cycling materials (GPS-trackers) into policing practices, can also con-tribute to this goal. With regard to research, the present work offers starting points for quantifications, for example on the relative importance of single elements as well as on the characteristics of their relations among each other or with regard to typical constellations of elements.
Creating Liveable Cities 3 - Knowledge Sharing
Creators: name: Murray, Katherine
name: Davern, Melanie
Publisher: name: RMIT University
Year: 2022
Subjects: Preventative health care
Public health not elsewhere classified
Health promotion
Health and community services
Urban design
Land use and environmental planning
Transport planning
Community planning

description: Impact & Application of the AUO

A selection of reports developed by and/or with our industry partners in local, state and federal government, health planning, policy, applied research and advocacy.
Theory and Experiments for Disordered Elastic Manifolds, Depinning, Avalanches, and Sandpiles
Creators: name: Wiese, Kay Joerg
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Domain walls in magnets, vortex lattices in superconductors, contact lines at depinning, and many other systems can be modelled as an elastic system subject to quenched disorder. Its field theory possesses a well-controlled perturbative expansion around its upper critical dimension. Contrary to standard field theory, the renormalization group flow involves a function, the disorder correlator $Δ(w)$, therefore termed the functional renormalization group (FRG). $Δ(w)$ is a physical observable, the auto-correlation function of the centre of mass of the elastic manifold. In this review, we give a pedagogical introduction into its phenomenology and techniques. This allows us to treat both equilibrium (statics), and depinning (dynamics). Building on these techniques, avalanche observables are accessible: distributions of size, duration, and velocity, as well as the spatial and temporal shape. Various equivalences between disordered elastic manifolds, and sandpile models exist: an elastic string driven at a point and the Oslo model; disordered elastic manifolds and Manna sandpiles; charge density waves and Abelian sandpiles or loop-erased random walks. Each of these mappings requires specific techniques, which we develop, including modelling of discrete stochastic systems via coarse-grained stochastic equations of motion, super-symmetry techniques, and cellular automata. Stronger than quadratic nearest-neighbour interactions lead to directed percolation, and non-linear surface growth with additional KPZ terms. On the other hand, KPZ without disorder can be mapped back to disordered elastic manifolds, either on the directed polymer for its steady state, or a single particle for its decay. Other topics covered are the relation between functional RG and replica symmetry breaking, and random field magnets. Emphasis is given to numerical and experimental tests of the theory.
description: 133 pages, 156 figures, 772 references. Version 3 is close to the published version
Learning Contact Dynamics using Physically Structured Neural Networks
Creators: name: Hochlehnert, Andreas
name: Terenin, Alexander
name: Sæmundsson, Steindór
name: Deisenroth, Marc Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Learning physically structured representations of dynamical systems that include contact between different objects is an important problem for learning-based approaches in robotics. Black-box neural networks can learn to approximately represent discontinuous dynamics, but they typically require large quantities of data and often suffer from pathological behaviour when forecasting for longer time horizons. In this work, we use connections between deep neural networks and differential equations to design a family of deep network architectures for representing contact dynamics between objects. We show that these networks can learn discontinuous contact events in a data-efficient manner from noisy observations in settings that are traditionally difficult for black-box approaches and recent physics inspired neural networks. Our results indicate that an idealised form of touch feedback -- which is heavily relied upon by biological systems -- is a key component of making this learning problem tractable. Together with the inductive biases introduced through the network architectures, our techniques enable accurate learning of contact dynamics from observations.
Super-Earths as Failed Cores in Orbital Migration Traps
Creators: name: Hasegawa, Yasuhiro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We explore whether close-in super-Earths were formed as rocky bodies that failed to grow fast enough to become the cores of gas giants before the natal protostellar disk dispersed. We model the failed cores' inward orbital migration in the low-mass or type I regime, to stopping points at distances where the tidal interaction with the protostellar disk applies zero net torque. The three kinds of migration traps considered are those due to the dead zone's outer edge, the ice line, and the transition from accretion to starlight as the disk's main heat source. As the disk disperses, the traps move toward final positions near or just outside 1~au. Planets at this location exceeding about 3~M$_\oplus$ open a gap, decouple from their host trap, and migrate inward in the high-mass or type II regime to reach the vicinity of the star. We synthesize the population of planets formed in this scenario, finding that some fraction of the observed super-Earths can be failed cores. Most super-Earths formed this way have more than 4~M$_\oplus$, so their orbits when the disk disperses are governed by type II migration. These planets have solid cores surrounded by gaseous envelopes. Their subsequent photoevaporative mass loss is most effective for masses originally below about 6 M$_\oplus$. The failed core scenario suggests a division of the observed super-Earth mass-radius diagram into five zones according to the inferred formation history.
description: 19 pages, 4 figures, 5 tables, accepted for publication in ApJ
title: 'Truth is the same old story'
title: truth, genre and the ethics of memoir in Maggie and me
titleType: Subtitle
Creators: name: Barr, Damian
Publisher: name: Lancaster University
Year: 2020

description: This is a PhD by publication consisting of a published work and accompanying critical reflection. The published work is my memoir, Maggie & Me (2013), which depicts my chaotic and traumatic childhood in a post-industrial village outside Glasgow in the 1980s. The memoir juxtaposes the personal and political – ‘Maggie’ is Margaret Thatcher whose policies and persona were indelibly imposed on my community, my family and me. The critical reflection aims to contextualise Maggie & Me in the genre of memoir, to interrogate memoir as a genre and to deconstruct my process and practice in four chapters, each arranged around a single question. I draw on the work of Buckley (1974), Couser (2012) and Gornick (2002; 2009), with reference to specific memoirs, chiefly Galloway (2008; 2011), Sanghera (2009) and Winterson (2011). In Chapter 1 I ask Why not a novel? considering Maggie & Me as a bildungsroman while examining the origins, expectations and, ultimately, limitations of the coming-of-age novel. In Chapter 2 I ask Why write a memoir? while outlining expectations and tropes of the genre and reassessing my decision to write Maggie & Me as a memoir rather than as an autobiography or work of fiction or autofiction. In Chapter 3 I ask Is it all true? establishing the distinctive ethical and legal considerations involved in writing memoir, and the pact this genre forges between writer and reader. Chapter 4 concludes by investigating the nature of memoir as trauma relived and performed and considers the possibility of catharsis before finally asking Do I feel better now? – the answer to which may lie with the reader as a shared act of meaning making.
X-ray burst induced spectral variability in 4U 1728-34
Creators: name: Kajava, J. J. E.
name: Sánchez-Fernández, C.
name: Kuulkers, E.
name: Poutanen, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Aims. INTEGRAL has been monitoring the Galactic center region for more than a decade. Over this time INTEGRAL has detected hundreds of type-I X-ray bursts from the neutron star low-mass X-ray binary 4U 1728-34, a.k.a. "the slow burster". Our aim is to study the connection between the persistent X-ray spectra and the X-ray burst spectra in a broad spectral range. Methods. We performed spectral modeling of the persistent emission and the X-ray burst emission of 4U 1728-34 using data from the INTEGRAL JEM-X and IBIS/ISGRI instruments. Results. We constructed a hardness intensity diagram to track spectral state variations. In the soft state the energy spectra are characterized by two thermal components - likely from the accretion disc and the boundary/spreading layer - together with a weak hard X-ray tail that we detect in 4U 1728-34 for the first time in the 40 to 80 keV range. In the hard state the source is detected up to 200 keV and the spectrum can be described by a thermal Comptonization model plus an additional component: either a powerlaw tail or reflection. By stacking 123 X-ray bursts in the hard state, we detect emission up to 80 keV during the X-ray bursts. We find that during the bursts the emission above 40 keV decreases by a factor of about three with respect to the persistent emission level. Conclusions. Our results suggest that the enhanced X-ray burst emission changes the spectral properties of the accretion disc in the hard state. The likely cause is an X-ray burst induced cooling of the electrons in the inner hot flow near the neutron star.
description: 7 pages, 5 figures, Accepted for publication in A&A
National Open Access Monitor: Request for Tender Documents
Creators: name: Hughes, Michael
Publisher: name: Zenodo
Year: 2023
Subjects: open access
tender
open access monitoring

description: These tenders were run under the National Open Access Monitor Project, managed by IReL at Maynooth University, which has received funding from Ireland’s National Open Research Forum under the NORF Open Research Fund. https://norf.ie/funding/ https://norf.ie/orf-projects-announcement/. The tender process was managed by Education Procurement Service. This contains two sets of tender documents, each set comprising three constituent documents (RFT; Appendix 1; Appendix 2) 1. Request for Tenders dated 06/04/2023 to establish a Single Supplier Framework Agreement for the Provision of a National Open Access Monitor based on Public Open Data & Stakeholder-Provided Open Only Data for Maynooth University on behalf of IReL. Tender Reference: LI2554F. Tender procedure: Open Procedure (OJEU). Tender Query Deadline: Thursday 27/04/2023 14:00. Tender Deadline: Monday 08/05/2023 14:00 Etenders link: https://irl.eu-supply.com/ctm/Supplier/PublicPurchase/239070/1/0 2. Request for Tenders dated 06/04/2023 to establish a Single Supplier Framework Agreement for the Provision of a National Open Access Monitor based on Public Open Data only for Maynooth University on behalf of IReL. Tender Reference: LI2555F. Tender procedure: Open Procedure (OJEU). Tender Query Deadline: Thursday 27/04/2023 14:00. Tender Deadline: Monday 08/05/2023 14:00 Etenders link: https://irl.eu-supply.com/ctm/Supplier/PublicPurchase/238957/1/0 The context is detailed in the National Open Access Monitor Project Plan here: https://doi.org/10.5281/zenodo.7331431 The tender specifications were compiled by IReL with stakeholder input, from a survey carried out between February 2-28th 2023: https://doi.org/10.5281/zenodo.7588787. The survey outcome report is available here: https://doi.org/10.5281/zenodo.7822366. The survey response data is available here: https://doi.org/10.5281/zenodo.782182
A Robust Adversarial Network-Based End-to-End Communications System With Strong Generalization Ability Against Adversarial Attacks
Creators: name: Dong, Yudi
name: Wang, Huaxia
name: Yao, Yu-Dong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We propose a novel defensive mechanism based on a generative adversarial network (GAN) framework to defend against adversarial attacks in end-to-end communications systems. Specifically, we utilize a generative network to model a powerful adversary and enable the end-to-end communications system to combat the generative attack network via a minimax game. We show that the proposed system not only works well against white-box and black-box adversarial attacks but also possesses excellent generalization capabilities to maintain good performance under no attacks. We also show that our GAN-based end-to-end system outperforms the conventional communications system and the end-to-end communications system with/without adversarial training.
description: 5 pages letter
A critical multimodal approach to understanding radicalisation in terrorist recruitment materials
Creators: name: Mat Isa, Noor Aqsa Nabila
Publisher: name: Lancaster University
Year: 2020
Subjects: critical discourse studies
multimodal social semiotics
discourse historical approach
visual grammar
terrorism
radicalisation

description: In this research, I examine the ways a terrorist group uses online videos and magazines to construct its own and others’ identities, how they describe their operations and how they and others live, and also how in their view people should live and see the world. The analytical framework draws on critical discourse studies (CDS) and multimodal social semiotics, specifically Reisigl and Wodak’s (2016) discourse-historical approach (DHA) and Kress and van Leeuwen’s (2006) grammar of visual design. Additionally, I summarise reasons for radicalisation based on past scholarly work which include finding solutions to personal, social and economic crises (see King & Taylor, 2011; el-Said and Barrett, 2017). A detailed qualitative semiotic analysis of the recruitment materials leads to a taxonomy of semiotic elements with different meaning-making possibilities. These are actors (e.g. the group and their perceived enemies), symbols (e.g. enemies’ flags), music (e.g. recitation of holy texts), and texts (e.g. text fragments in English or Arabic within the materials). I juxtapose these elements with existing radicalisation models. Among other salient findings, I concluded that the group position themselves as victims of war because of coalition attacks, and the target audiences as being on the side of their enemies. They also indicate what they expect their readers/viewers to do if they haven’t been on the “right path” (e.g. instructing them to “terrorise” their enemies). In terms of argumentation, the findings reveal that they are mostly theological (e.g. references to Quranic verses), with evidence of manipulation, such as through recontextualisation (e.g. verses isolated from historical contexts). Ultimately, this research aims to contribute to the body of knowledge about the recruitment and manipulation strategies of terrorist groups from a critical discursive perspective, and further provide a detailed understanding of digitally mediated recruitment processes which may ultimately help to reduce the risk of radicalisation among vulnerable groups and inform public policy.
The whole brain architecture approach: Accelerating the development of artificial general intelligence by referring to the brain
Creators: name: Yamakawa, Hiroshi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences
subject: I.2.0

description: The vastness of the design space created by the combination of a large number of computational mechanisms, including machine learning, is an obstacle to creating an artificial general intelligence (AGI). Brain-inspired AGI development, in other words, cutting down the design space to look more like a biological brain, which is an existing model of a general intelligence, is a promising plan for solving this problem. However, it is difficult for an individual to design a software program that corresponds to the entire brain because the neuroscientific data required to understand the architecture of the brain are extensive and complicated. The whole-brain architecture approach divides the brain-inspired AGI development process into the task of designing the brain reference architecture (BRA) -- the flow of information and the diagram of corresponding components -- and the task of developing each component using the BRA. This is called BRA-driven development. Another difficulty lies in the extraction of the operating principles necessary for reproducing the cognitive-behavioral function of the brain from neuroscience data. Therefore, this study proposes the Structure-constrained Interface Decomposition (SCID) method, which is a hypothesis-building method for creating a hypothetical component diagram consistent with neuroscientific findings. The application of this approach has begun for building various regions of the brain. Moving forward, we will examine methods of evaluating the biological plausibility of brain-inspired software. This evaluation will also be used to prioritize different computational mechanisms, which should be merged, associated with the same regions of the brain.
description: 28 pages, 10 figures, Preprint submitted to Neural Networks
A New Energy Efficient MAC Protocol based on Redundant Radix for Wireless Networks
Creators: name: Sinha, Koushik
Publisher: name: arXiv
Year: 2016
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In this paper, we first propose a redundant radix based number (RBN) representation for encoding the data to be transmitted in a wireless network. This RBN encoding uses three possible values - 0, 1 and $\bar 1$, for each digit to be transmitted. We then propose to use silent periods (zero energy transmission) for transmitting the 0's in the RBN encoded data thus obtained. This is in contrast to most conventional communication strategies that utilize energy based transmission (EbT) schemes, where energy expenditure occurs for transmitting both 0 and 1 bit values. The binary to RBN conversion algorithm presented here offers a significant reduction in the number of non-zero bits in the resulting RBN encoded data. As a result, it provides a highly energy-efficient technique for data transmission with silent periods for transmitting 0's. We simulated our proposed technique with ideal radio device characteristics and also with parameters of various commercially available radio devices. Experimental results on various benchmark suites show that with ideal as well as some commercial device characteristics, our proposed transmission scheme requires 69% less energy on an average, compared to the energy based transmission schemes. This makes it very attractive for application scenarios where the devices are highly energy constrained. Finally, based on this transmission strategy, we have designed a MAC protocol that would support the communication of such RBN encoded data frames.
description: Conference pre-print version
title: Zehn Botschaften zu SDG 12 "Nachhaltige Konsum- und Produktionsmuster" : wie wir Nachhaltigkeit in Produktion und Konsum umsetzen können ; Vorschläge an Gesellschaft, Politik und Wirtschaft
Creators: name: Liedtke, Christa
name: Büttgen, Alexandra
Publisher: name: Wuppertal Institut für Klima, Umwelt, Energie
Year: 2022
Subjects: subject: 300 Sozialwissenschaften

description: Die aktuellen Berichte des Weltklimarates (Intergovernmental Panel on Climate Change, IPCC) und des International Resource Panel zeigen erneut die Dringlichkeit einer umfassenden sozial-ökologischen Transformation auf. Das bedeutet, dass die Umsetzung der "Agenda 2030", welche im Jahr 2015 durch die Vereinten Nationen beschlossen wurde, als ein international geltendes Maßnahmenprogramm zur Umsetzung einer nachhaltigen Entwicklung gesetzt und ihr ein zentraler politischer Stellenwert zugeordnet werden muss. Das SDG 12 "Nachhaltige Konsum- und Produktionsmuster sicherstellen" setzt die besondere Rolle nachhaltiger Produktions- und Konsummuster als Ausgangspunkt für eine Klima- und Ressourcenwende und Generationen- sowie soziale Gerechtigkeit. Der Zukunftsimpuls formuliert zehn Botschaften zur Umsetzung von SDG 12 "Nachhaltige Konsum- und Produktionsmuster sicherstellen" als Ausgangspunkt einer großen Transformation. Es beleuchtet kurz und knapp vielfältige Handlungsvoraussetzungen als auch Akteurinnen und Akteure, die relevant für die Verwirklichung einer nachhaltigen Zukunft sind. Der Zukunftsimpuls thematisiert unter anderem die Vorbildfunktion des Staates, die Chancen, die sich auf kommunaler Ebene bieten und die internationale Perspektive, welche sich durch globale Kooperationen und stetigen Wissens- und Erfahrungsaustausch auszeichnen sollte. Ein weiterer Fokus liegt auf nachhaltiger Produktion und nachhaltigem Konsum. Dies lässt sich durch die Stärkung des Nachhaltigkeitsbewusstseins und der -kompetenz sowie der Schaffung von ausreichend Gelegenheiten erreichen, damit einer dynamisch wachsenden Gruppe nachhaltiges Produzieren und nachhaltiger Konsum ermöglicht wird. Ziel ist daher die Bildung eines politischen und gesetzlichen Rahmens, welcher nachhaltige Lebensstile als auch nachhaltige Produktions- und Dienstleistungssysteme begünstigt, fördert und als Daseinsvorsorge sieht. Um die Entwicklung und Fortschritte zu sichern, bedarf es neuer Indikatoren und regelmäßiger Monitorings, die Handlungslücken in Realzeit aufdecken und das Schließen der Lücken ermöglichen. Die Umsetzung des SDG 12 benötigt einen Rahmen, der von Politik, Wirtschaft und Gesellschaft getragen wird.
The New Phase due to Symmetry Protected Piecewise Berry Phases; Enhanced Pumping and Non-reciprocity in Trimer Lattices
Creators: name: Liu, Xuele
name: Agarwal, G. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Finding new phase is a fundamental task in physics. Landau's theory explained the deep connection between symmetry breaking and phase transition commonly occurring in magnetic, superconducting and super uid systems. The discovery of the quantum Hall effect led to Z topological phases which could be different for same symmetry and are characterized by the discrete values of the Berry phases. By studying 1D trimer lattices we report new phases characterized by Berry phases which are piecewise continuous rather than discrete numbers. The phase transition occurs at the discontinuity point. With time-dependent changes, trimer lattices also give a 2D phases characterized by very specific 2D Berry phases of half period. These Berry phases change smoothly within a phase while change discontinuously at the transition point. We further demonstrate the existence of adiabatic pumping for each phase and gain assisted enhanced pumping. The non-reciprocity of the pumping process makes the system a good optical diode.
description: 12pages, 7figures
Modulated magnetism and anomalous electronic transport in $\rm Ce_3Cu_4As_4O_2$
Creators: name: Wang, Jiakui K.
name: Wu, Shan
name: Qiu, Yiming
name: Rodriguez-Rivera, Jose A.
name: Huang, Qingzhen
name: Broholm, C.
name: Morosan, E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The complex magnetism and transport properties of tetragonal Ce$_3$Cu$_4$As$_4$O$_2$ were examined through neutron scattering and physical properties measurements on polycrystalline samples. The lamellar structure consists of alternating layers of $\rm CeCu_4As_4$ with a single square Ce lattice and oxygen-linked Ce bi-layer $\rm Ce_2O_2$. Extending along $\bf c$, a tube-like Fermi surface from DFT calculations points to a quasi-two-dimensional electronic system. Peaks in the specific heat at the Neél temperature $T_{N}=24$ $\rm K$, $T_{2}~=~16 $ $\rm K$ and $T_{3}~=~1.9$ $ \rm K$ indicate three magnetic phase transitions or distinct cross-over phenomena. For $T
description: *These authors contributed equally to the project
D3p -- A Python Package for Differentially-Private Probabilistic Programming
Creators: name: Prediger, Lukas
name: Loppi, Niki
name: Kaski, Samuel
name: Honkela, Antti
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Cryptography and Security (cs.CR)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We present d3p, a software package designed to help fielding runtime efficient widely-applicable Bayesian inference under differential privacy guarantees. d3p achieves general applicability to a wide range of probabilistic modelling problems by implementing the differentially private variational inference algorithm, allowing users to fit any parametric probabilistic model with a differentiable density function. d3p adopts the probabilistic programming paradigm as a powerful way for the user to flexibly define such models. We demonstrate the use of our software on a hierarchical logistic regression example, showing the expressiveness of the modelling approach as well as the ease of running the parameter inference. We also perform an empirical evaluation of the runtime of the private inference on a complex model and find a $\sim$10 fold speed-up compared to an implementation using TensorFlow Privacy.