cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A symplectic refinement of shifted Hecke insertion
Creators: name: Marberg, Eric
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Geometry (math.AG)
subject: K-Theory and Homology (math.KT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Buch, Kresch, Shimozono, Tamvakis, and Yong defined Hecke insertion to formulate a combinatorial rule for the expansion of the stable Grothendieck polynomials $G_π$ indexed by permutations in the basis of stable Grothendieck polynomials $G_λ$ indexed by partitions. Patrias and Pylyavskyy introduced a shifted analogue of Hecke insertion whose natural domain is the set of maximal chains in a weak order on orbit closures of the orthogonal group acting on the complete flag variety. We construct a generalization of shifted Hecke insertion for maximal chains in an analogous weak order on orbit closures of the symplectic group. As an application, we identify a combinatorial rule for the expansion of "orthogonal" and "symplectic" shifted analogues of $G_π$ in Ikeda and Naruse's basis of $K$-theoretic Schur $P$-functions.
description: 41 pages; v2: fixed several errors, minor reorganization; v3: further corrections, condensed exposition; v4: minor changes; v5: corrected a mistake in Definition 3.5, fixed several typos and minor errors
Analytical high-order post-Newtonian expansions for extreme mass ratio binaries
Creators: name: Kavanagh, Chris
name: Ottewill, Adrian C.
name: Wardell, Barry
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present analytic computations of gauge invariant quantities for a point mass in a circular orbit around a Schwarzschild black hole, giving results up to 15.5 post-Newtonian order in this paper and up to 21.5 post-Newtonian order in an online repository. Our calculation is based on the functional series method of Mano, Suzuki and Takasugi (MST) and a recent series of results by Bini and Damour. We develop an optimised method for generating post-Newtonian expansions of the MST series, enabling significantly faster computations. We also clarify the structure of the expansions for large values of $\ell$, and in doing so develop an efficient new method for generating the MST renormalised angular momentum, $ν$.
description: Updated to match published version
Accessing publicly funded donor insemination treatment in the UK: is funding information available on fertility clinic websites?
Creators: name: Taylor, Francesca
name: Turner-Moore, Rhys
name: Pacey, Allan
name: Jones, Georgina
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: We sought to find out if information about public funding for regulated donor insemination (DI) was available on UK fertility clinic websites, and if so, what information was provided for same-sex couples and single women; and if the available information was easily readable. The ‘Choose a fertility clinic’ pages of the Human Fertilisation and Embryology Authority (HFEA) website were used to identify all licensed fertility clinics in the UK, and any available text on public funding for DI treatment was extracted. The Flesch reading ease scores were calculated to determine the readability of the extracted text. Of the 52 clinics included in the synthesis, 23 mentioned public funding, and for 16 of these, it was unclear whether public funding was available. Six of the 23 clinics mentioned public funding for same-sex couples, and two mentioned public funding for single women. The Flesch reading ease scores indicated that none of the text about funding for DI treatment on any of the clinic websites met the NHS-advised level of readability for health information. Fertility clinic websites should specify whether they offer publicly funded treatment, and to whom, as well as clearly stating the eligibility criteria, using suitably readable language to communicate this.
Sampling inequality for $L^2$-norms of eigenfunctions, spectral projectors, and Weyl sequences of Schrödinger operators
Creators: name: Tautenhahn, Martin
name: Veselić, Ivan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J10

description: We consider a Schrödinger operator with bounded, measurable potential in multidimensional Euclidean space. We prove for every $L^2$-eigenfunction a quantitative equidistribution estimate. It compares the total $L^2$-norm with the $L^2$-norm over an equidistributed collection of balls. Our estimate is explicit with respect to the radius of the balls, norm of the potential and the energy of the eigenfunction. Similar estimates also hold for Weyl sequences and for linear combinations of eigenfunctions, as long as the associated eigenvalues are sufficiently close.
description: Short note of 4 pages. The first version of the paper had a mistake in the M-scaling. This is now corrected
أدوات التشخيص في الإرشاد النفسي الأسري الجينوغرام نموذجا
Creators: name: Mhamel, Imad Eddine
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 520303
subject: Counselling psychology

description: سنتطرق في هذه المداخلة إلى أداة "الجينوغرام" باعتبارها من الأدوات التشخيصية التي تساعد الأخصائي في الإرشاد النفسي الأسري على كشف الجانب الصحي والمشاكل الاجتماعية، وتساعد أيضا على معرفة الأحداث السارة والغير سارة التي مر بها أفراد الأسرة، حيث سنوضح ماهية أداة الجينوغرام من خلال تعريفها، أصلها، كيفية جمع البيانات لإنشائها، وأبرز مكوناتها، مع توضيح أهميتها والهدف منها.
Determination of Size of the Emitting Region in Eclipsing Cataclysmic Variable Stars
Creators: name: Andronov, Ivan L.
name: Andrych, Kateryna D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The dependencies of the phase of eclipse of the white dwarf's centre and the durations of the ascending and descending branches of the light curve on the binary system's parameters were computed using the spherically-symmetric approximation and the more accurate model of the elliptical projection onto the celestial sphere of the companion (red dwarf) that fills its Roche lobe. The parameters of eclipses in the classical eclipsing polar OTJ 071126+440405 = CSS 081231:071126+440405 were estimated.
description: "Odessa Astronomical Publications", 2014, vol. 27 (in press), 3 pages, 5 figures
Experiment Planning for Software Development: Redevelopment Experiment
Creators: name: Perry, James M.
name: Kang, Kyo C.
name: Cohen, Sholom
name: Holibaugh, Robert R.
name: A. Spencer Peterson
Publisher: name: Figshare
Year: 2018
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: The Application of Reusable Software Components Project (ARSC) formulated an experiment design, data collection plan, and procedures in preparation for a reuse experiment. The reuse experiment is currently in progress and the experiment planning and the results to date are presented. While the design, plan, and procedures were developed to support the investigation of software reuse, they, as well as the process by which they were formulated, are applicable to any software development effort. They can be adapted to other technology investigations or to project-specific goals for improvement.
Untitled Item
Creators: name: Mhamel, Imad Eddine
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 520303
subject: Counselling psychology

description: سنتطرق في هذه المداخلة إلى أداة "الجينوغرام" باعتبارها من الأدوات التشخيصية التي تساعد الأخصائي في الإرشاد النفسي الأسري على كشف الجانب الصحي والمشاكل الاجتماعية، وتساعد أيضا على معرفة الأحداث السارة والغير سارة التي مر بها أفراد الأسرة، حيث سنوضح ماهية أداة الجينوغرام من خلال تعريفها، أصلها، كيفية جمع البيانات لإنشائها، وأبرز مكوناتها، مع توضيح أهميتها والهدف منها.
A Phase Lag between Disk and Corona in GRMHD Simulations of Precessing Tilted Accretion Disks
Creators: name: Liska, M.
name: Hesp, C.
name: Tchekhovskoy, A.
name: Ingram, A.
name: van der Klis, M.
name: Markoff, S. B.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the course of its evolution, a black hole (BH) accretes gas from a wide range of directions. Given a random accretion event, the typical angular momentum of an accretion disc would be tilted by $\sim$60$^\circ$ relative to the BH spin. Misalignment causes the disc to precess at a rate that increases with BH spin and tilt angle. We present the first general-relativistic magnetohydrodynamic (GRMHD) simulations spanning a full precession period of highly tilted (60$^\circ$), moderately thin ($h/r=0.1$) accretion discs around a rapidly spinning ($a\simeq0.9$) BH. While the disc and jets precess in phase, we find that the corona, sandwiched between the two, lags behind by $\gtrsim 10^{\circ}$. For spectral models of BH accretion, the implication is that hard non-thermal (corona) emission lags behind the softer (disc) emission, thus potentially explaining some properties of the hard energy lags seen in Type-C low frequency quasi-periodic oscillations in X-Ray binaries. While strong jets are unaffected by this disc-corona lag, weak jets stall when encountering the lagging corona at distances $r \sim 100$ black hole radii. This interaction may quench large-scale jet formation.
description: 6 pages, 4 figures, Accepted in New Astronomy, see YouTube playlist for 3D renderings: https://www.youtube.com/playlist?list=PLDO1oeU33GwmwOV_Hp9s7572JdU8JPSSK
Impact of polyunsaturated fatty acid supplementation on assisted reproductive technology outcomes: a systematic review
Creators: name: Bayar, Erna
name: Galazis, Nicolas
name: Jones, Benjamin
name: Bracewell-Milnes, Timothy
name: Chawla, Mehar
name: Ahmed-Salim, Yousra
name: Nagi, Jara Ben
Publisher: name: Taylor & Francis
Year: 2021
Subjects: Medicine
Cell Biology
Biotechnology
Developmental Biology
Science Policy

description: This review explores the impact of polyunsaturated fatty acid (PUFA) supplementation in women undergoing assisted reproductive technology (ART) on reproductive outcomes. A systematic search of English peer-reviewed journals was carried out using MEDLINE, EMBASE, and the Cochrane Library to identify articles published from January 1978 to 2021. The primary outcomes assessed included pregnancy and live birth rates. Secondary outcome measures included: (i) implantation rate; (ii) fertilisation rate; (iii) number of oocytes retrieved; (iv) number of metaphase II (MII) oocytes; (v) blastocyst conversion; and (vi) embryo quality. A total of 4 randomised control trials (RCTs) met the inclusion criteria. There is a lack of high-quality research to support widespread dietary supplementation with PUFAs in women undergoing ART. Prior to its clinical recommendation, there is a need for well-designed RCTs to facilitate an in-depth understanding of PUFA supplementation in women undergoing ART.
Integral points of bounded height on a log Fano threefold
Creators: name: Wilsch, Florian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11D45 (Primary), 11G35, 14G05 (Secondary)

description: We determine an asymptotic formula for the number of integral points of bounded height on a blow-up of $\mathbb{P}^3$ outside certain planes using universal torsors.
description: 19 pages. minor revision
Additional file 2 of Targeting galectin-3 to counteract spike-phase uncoupling of fast-spiking interneurons to gamma oscillations in Alzheimer’s disease
Creators: name: Arroyo-García, Luis Enrique
name: Bachiller, Sara
name: Ruiz, Rocío
name: Boza-Serrano, Antonio
name: Rodríguez-Moreno, Antonio
name: Deierborg, Tomas
name: Andrade-Talavera, Yuniesky
name: Fisahn, André
Publisher: name: figshare
Year: 2024
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Cancer
subject: Mental Health
subject: Hematology

description: Additional file 2: Table S1. Summary of statistics performed in Fig. 1c. Table S2. Summary of statistics performed in Fig. 1d. Table S3. Summary of statistics performed in Fig. 5e. Table S4. Summary of statistics performed in Fig. 5f. Table S5. Summary of statistics performed in Fig. 5e and f for frequency variance shown in Additional file 1: Fig. S9.
Editorial: Spatial accessibility of pediatric primary healthcare: Measurement and inference
Creators: name: Paddock, Susan M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Improving access to health care has long been at the forefront of policy debates in the U.S. There are multiple determinants of healthcare utilization: predisposing characteristics that explain individuals' propensities to use healthcare; enabling characteristics that describe the resources individuals have to use healthcare; and perceived or actual need for healthcare [Aday and Andersen (1974)]. Nobles, Serban and Swann (2014) illustrate the complexity involved with developing an understanding of one determinant of healthcare utilization. They examine spatial accessibility - an enabling characteristic under the aforementioned framework - to primary care pediatricians in Georgia. The authors encounter challenges that arise in many public policy applications, namely, the limitations of the available data, the need to conduct analyses that reflect system constraints, model selection and uncertainty quantification. The Area Editors featured this paper, along with contributions from three discussants, in an AoAS invited session at the 2014 Joint Statistical Meetings and are including the paper and those discussions in this issue because the paper showcases the type of research AoAS aims to publish: analyses requiring innovative statistical thinking to address questions of practical importance.
description: Published in at http://dx.doi.org/10.1214/14-AOAS728ED the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Towards Prediction of Financial Crashes with a D-Wave Quantum Computer
Creators: name: Ding, Yongcheng
name: Gonzalez-Conde, Javier
name: Lamata, Lucas
name: Martín-Guerrero, José D.
name: Lizaso, Enrique
name: Mugel, Samuel
name: Chen, Xi
name: Orús, Román
name: Solano, Enrique
name: Sanz, Mikel
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Prediction of financial crashes in a complex financial network is known to be an NP-hard problem, which means that no known algorithm can guarantee to find optimal solutions efficiently. We experimentally explore a novel approach to this problem by using a D-Wave quantum computer, benchmarking its performance for attaining financial equilibrium. To be specific, the equilibrium condition of a nonlinear financial model is embedded into a higher-order unconstrained binary optimization (HUBO) problem, which is then transformed to a spin-$1/2$ Hamiltonian with at most two-qubit interactions. The problem is thus equivalent to finding the ground state of an interacting spin Hamiltonian, which can be approximated with a quantum annealer. The size of the simulation is mainly constrained by the necessity of a large quantity of physical qubits representing a logical qubit with the correct connectivity. Our experiment paves the way to codify this quantitative macroeconomics problem in quantum computers.
Discovering DISCOVER
Creators: name: Tilley, Scott R.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: This report describes investigations into DISCOVER, a modern software development and maintenance environment. The study is guided by a framework for classifying program understanding tools that is based on a description of the canonical activities that are characteristic of the reverse engineering process. Implications of this work for advanced practitioners, researchers and tool developers, and the framework itself are discussed.
Training large-scale ANNs on simulated resistive crossbar arrays
Creators: name: Rasch, Malte J.
name: Gokmen, Tayfun
name: Haensch, Wilfried
Publisher: name: arXiv
Year: 2019
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Emerging Technologies (cs.ET)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Accelerating training of artificial neural networks (ANN) with analog resistive crossbar arrays is a promising idea. While the concept has been verified on very small ANNs and toy data sets (such as MNIST), more realistically sized ANNs and datasets have not yet been tackled. However, it is to be expected that device materials and hardware design constraints, such as noisy computations, finite number of resistive states of the device materials, saturating weight and activation ranges, and limited precision of analog-to-digital converters, will cause significant challenges to the successful training of state-of-the-art ANNs. By using analog hardware aware ANN training simulations, we here explore a number of simple algorithmic compensatory measures to cope with analog noise and limited weight and output ranges and resolutions, that dramatically improve the simulated training performances on RPU arrays on intermediately to large-scale ANNs.
Domāt skaļi (Think aloud) metode digitālo produktu lietojamības testēšanai
Creators: name: Daugavietis, Jānis
name: Karlsone, Agnese
Publisher: name: Zenodo
Year: 2022
Subjects: Digitālās pētniecības metodes
Domāt skaļi
Think aloud
Digitālie produkti
Lietojamības testēšana
Kvalitatīvā pieeja

description: “Domāt skaļi” metode tiek izmantota digitālo produktu (programmu, mājas lapu, resursu u.c.) lietojamības testēšanai. Tās pamatā ir pieeja, ka lietotājs, izmantojot konkrēto produktu, pilda testa veicēju sagatavotus uzdevumus un verbāli dalās ar novērojumiem, pārdomām, sajūtām. Testēšanas procesu vada moderators, sekojot līdzi gan testētāja darbībām virtuālajā vidē, gan viņa reakcijām un komentāriem (procesu vēlams fiksēt videoierakstā, lai to vēlāk varētu analizēt atkārtoti un arī citi). Tādējādi testa veicējiem ir iespēja redzēt un analizēt ne tikai uzdevumu izpildes galarezultātu, bet arī lietotāja interakciju ar produktu un tās interpretāciju. Tā kā metode ir salīdzinoši laikietilpīga, bieži viena produkta testēšanai tiek izmantoti 3-5 lietotāji, tāpēc visbiežāk izmantota kvalitatīvās pētniecības pieeja. Ja testēšanā iesaistīts lielāks skaits, iegūtos datus var kvantificēt un veikt statistisku analīzi, kā arī koncentrēties uz specifiskiem kvantitatīvi mērāmiem uzdevumiem. “Domāt skaļi” metodi vienlaikus var kombinēt ar automatizētiem testētāja uzvedības fiksēšanas rīkiem, piemēram, kursora, klikšķu un acu zīlīšu izsekošanai. Šis metodoloģiskais apraksts pamatā orientēts uz tādiem metodes pielietojuma gadījumiem, kad netiek izmantota specializēta (un dārga) programmatūra, bet gan digitālajā pētniecībā un komunikācijā ikdienā lietotie līdzekļi un resursi (piemēram, testēšanu veicot tādās platformās kā Zoom vai MS Teams, datu fiksēšanai un analīzei izmantojot ofisu standartprogrammas). Metodes apraksts veidots projekta “Humanitāro zinātņu digitālie resursi: integrācija un attīstība” (vad. Sanita Bērziņa-Reinsone, VPP-IZM-DH-2020/1-0001, 05.10.2020.–04.10.2022.) ietvaros, balstoties uz tā gaitā veikto metodes aprobāciju un akadēmiskās un lietišķās literatūras analīzi.
Random-walk in Beta-distributed random environment
Creators: name: Barraquand, Guillaume
name: Corwin, Ivan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Probability (math.PR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We introduce an exactly-solvable model of random walk in random environment that we call the Beta RWRE. This is a random walk in $\mathbb{Z}$ which performs nearest neighbour jumps with transition probabilities drawn according to the Beta distribution. We also describe a related directed polymer model, which is a limit of the $q$-Hahn interacting particle system. Using a Fredholm determinant representation for the quenched probability distribution function of the walker's position, we are able to prove second order cube-root scale corrections to the large deviation principle satisfied by the walker's position, with convergence to the Tracy-Widom distribution. We also show that this limit theorem can be interpreted in terms of the maximum of strongly correlated random variables: the positions of independent walkers in the same environment. The zero-temperature counterpart of the Beta RWRE can be studied in a parallel way. We also prove a Tracy-Widom limit theorem for this model.
description: 55 pages. v5: updated version correcting minor mistakes in the published version
Social difference in young women's experiences of Higher Education and transitions to work
Creators: name: Bates, Emma
Publisher: name: Loughborough University
Year: 2022
Subjects: subject: 49999 Earth Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences

description: This research explores young women’s youth transitions and how they undergo the movement from youth to adulthood, school to university, and from university into the labour market. Extant research on youth transitions has, so far, neglected the complexity of the interaction of axes of social difference with youth transitions, and has not sufficiently interrogated how young women’s identities shape their experiences of university and the workplace. This research addresses this by closely examining, from the perspectives of young women, what these transitions entail in relation to their personal identities. Additionally, this research scrutinises how young women experience the spaces of university and the workplace, appreciating them as sites of change for young women and where power relations unfold amidst these physical environments. In particular, the research investigates young women’s perceptions of (in)equality and their reactions to discrimination, and examines the implications of differences in experience for higher education and employment outcomes. To do so, this research draws upon a feminist epistemology, Critical Race Theory (CRT) and Bourdieu’s use of capitals to analyse interviews with 34 women, ranging from final year undergraduates to recent alumnae from a single, pre-1992 university in the East Midlands. The research finds that young women’s articulations of youth transitions can be helpfully described in relation to a period of ‘emerging adulthood’, with vital conjunctures and critical moments interspersed throughout. Additionally, the research advances our understanding of the extent to which young women’s awareness of their social identities is fractured by regimes of power, and that their experiences of higher education and the workplace are greatly shaped by the interaction of their identities with these environments. The research concludes by arguing that a more holistic, complex view of transitions is needed in order to appreciate the subtleties and wide-ranging factors affecting their experiences. Additionally, the research problematises the extent to which university tackles inequality, and explores the implications of young women’s responses to discrimination in the workplace – demonstrating the complexity of the relationship between awareness and action.
Additional file 1 of Musical and psychomotor interventions for cognitive, sensorimotor, and cerebral decline in patients with Mild Cognitive Impairment (COPE): a study protocol for a multicentric randomized controlled study
Creators: name: James, CE.
name: Stucker, C.
name: Junker-Tschopp, C.
name: Fernandes, AM.
name: Revol, A.
name: Mili, ID.
name: Kliegel, M.
name: Frisoni, GB.
name: Brioschi Guevara, A.
name: Marie, D.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Mental Health

description: Additional file 1: Supplementary Table 1. Prescreening procedure1 to verify inclusion/exclusion criteria.
Flat Chern Band From Twisted Bilayer MnBi$_2$Te$_4$
Creators: name: Lian, Biao
name: Liu, Zhaochen
name: Zhang, Yuanbo
name: Wang, Jing
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We construct a continuum model for the Moiré superlattice of twisted bilayer MnBi$_2$Te$_4$, and study the band structure of the bilayer in both ferromagnetic (FM) and antiferromagnetic (AFM) phases. We find the system exhibits highly tunable Chern bands with Chern number up to $3$. We show that a twist angle of $1^\circ$ turns the highest valence band into a flat band with Chern number $\pm1$ that is isolated from all other bands in both FM and AFM phases. This result provides a promising platform for realizing time-reversal breaking correlated topological phases, such as fractional Chern insulator and $p+ip$ topological superconductor. In addition, our calculation indicates that the twisted stacking facilitates the emergence of quantum anomalous Hall effect in MnBi$_2$Te$_4$.
description: 7+7 pages, 3+2 figures, typos corrected
Electric manipulation of the Mn-acceptor binding energy and the Mn-Mn exchange interaction on the GaAs (110) surface by nearby As vacancies
Creators: name: Mahani, M. R.
name: MacDonald, A. H.
name: Canali, C. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate theoretically the effect of nearby As (arsenic) vacancies on the magnetic properties of substitutional Mn (manganese) impurities on the GaAs (110) surface, using a microscopic tight-binding model which captures the salient features of the electronic structure of both types of defects in GaAs. The calculations show that the binding energy of the Mn-acceptor is essentially unaffected by the presence of a neutral As vacancy, even at the shortest possible ${\rm V}_{\rm As}$--Mn separation. On the other hand, in contrast to a simple tip-induced-band-bending theory and in agreement with experiment, for a positively charged As vacancy the Mn-acceptor binding energy is significantly reduced as the As vacancy is brought closer to the Mn impurity. For two Mn impurities aligned ferromagnetically, we find that nearby charged As vacancies enhance the energy level splitting of the associated coupled acceptor levels, leading to an increase of the effective exchange interaction. Neutral vacancies leave the exchange splitting unchanged. Since it is experimentally possible to switch reversibly between the two charge states of the vacancy, such a local electric manipulation of the magnetic dopants could result in an efficient real-time control of their exchange interaction.
description: 13 pages, 15 figures, Journal
A singular limit problem for rotating capillary fluids with variable rotation axis
Creators: name: Fanelli, Francesco
Publisher: name: arXiv
Year: 2015
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In the present paper we study a singular perturbation problem for a Navier-Stokes-Korteweg model with Coriolis force. Namely, we perform the incompressible and fast rotation asymptotics simultaneously, while we keep the capillarity coefficient constant in order to capture surface tension effects in the limit. We consider here the case of variable rotation axis: we prove the convergence to a linear parabolic-type equation with variable coefficients. The proof of the result relies on compensated compactness arguments. Besides, we look for minimal regularity assumptions on the variations of the axis.
description: Section 5 of the previous version was removed
Foundations for Survivable System Development: Service Traces, Intrusion Traces, and Evaluation Models
Creators: name: Linger, Richard C.
name: Moore, Andrew P.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: Survivability is a new branch of dependability. It addresses explicit requirements for restricted modes of operation that preserve mission-critical essential services in adverse operational environments.

A survivable system is one that satisfies its survivability specification of essential services and adverse environments. On the system side, survivability specifications can be defined by essential-service traces that map essential-service workflows, derived from user requirements, into system component dependencies and required survivability attributes. On the environment side, survivability specifications can be defined by intrusion traces that map intruder workflows, derived from attack patterns, into compromisable system components. Survivability design applies resistance, recognition, and recovery strategies to maintain essential-service workflows where possible despite compromised components. Test environments for survivable system implementations can be defined by survivability evaluation models that merge essential-service and intruder workflows into usage-based, statistically valid test suites. This paper describes the initial results of research in these areas.
Exceptional points for chiral Majorana fermions in arbitrary dimensions
Creators: name: Mandal, Ipsita
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Certain real parameters of a Hamiltonian, when continued to complex values, can give rise to singular points called exceptional points ($EP$'s), where two or more eigenvalues coincide and the complexified Hamiltonian becomes non-diagonalizable. We show that for a generic $d$-dimensional topological superconductor / superfluid with a chiral symmetry, one can find $EP$'s associated with the chiral zero energy Majorana fermions bound to a topological defect / edge. Exploiting the chiral symmetry, we propose a formula for counting the number ($n$) of such chiral zero modes. We also establish the connection of these solutions to the Majorana fermion wavefunctions in the position space. The imaginary parts of these momenta are related to the exponential decay of the wavefunctions localized at the defect / edge, and hence their changes of signs at a topological phase transition point signal the appearance or disappearance of chiral Majorana zero modes. Our analysis thus explains why topological invariants like the winding number, defined for the corresponding Hamiltonian in the momentum space for a defectless system with periodic boundary conditions, capture the number of admissible Majorana fermion solutions for the position space Hamiltonian with defect(s). Finally, we conclude that $EP$'s cannot be associated with the Majorana fermion wavefunctions for systems with no chiral symmetry, although one can use our formula for counting $n$, using complex $k$ solutions where the determinant of the corresponding BdG Hamiltonian vanishes.
description: Some entries in bib file fixed. Companion paper to arXiv:1503.06804
Global Information Grid Survivability: Four Studies
Creators: name: Ciampa, Richard C.
name: Day, Dawn
name: Franks, Jennifer R.
name: Tsuboi, Christopher T.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: The four studies in this document are student contributions to the SEI Global Information Grid (GIG) Survivability Study. Each study explores an issue relevant to the survivability of networks which are systems of systems. Since the GIG is inherently a system of systems, the survivability of operational concepts such as Joint Battle Management Command and Control (JBMC2) will largely depend on the extent to which GIG architecture is approached from this perspective. Systems of systems differ from large, monolithic systems because of the simultaneous independence and interdependence of their constituent parts, and therefore traditional survivability methods are not sufficient. To deal with the operational complexity resulting from qualities peculiar to systems of systems, planners and builders of the GIG will need to formulate broad strategic approaches taking these qualities into account. These four studies have attempted to identify characteristics of systems of systems which may be useful in this endeavor. The specific areas explored in this document include the following: the applicability of autonomous agents in a system of systems; the suitability of conventional software testing in a system-of-systems environment; emergent properties and unanticipated consequences in a system of systems; the role of ontologies in systems-of-systems interoperability; the architectural properties and operational survivability effects of internet protocol version 6 (IPv6) technology.
Additional file 2 of Musical and psychomotor interventions for cognitive, sensorimotor, and cerebral decline in patients with Mild Cognitive Impairment (COPE): a study protocol for a multicentric randomized controlled study
Creators: name: James, CE.
name: Stucker, C.
name: Junker-Tschopp, C.
name: Fernandes, AM.
name: Revol, A.
name: Mili, ID.
name: Kliegel, M.
name: Frisoni, GB.
name: Brioschi Guevara, A.
name: Marie, D.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Mental Health

description: Additional file 2: Supplementary Table 2. Behavioral Battery (psychometric tests)Measured at all 3 time points: t0: baseline; t1: 3 months; t2: 6 months COGTEL & A-IADL-Q(SV) applied before t0, then at t1 and t2.
Enabling AI in Future Wireless Networks: A Data Life Cycle Perspective
Creators: name: Nguyen, Dinh C.
name: Cheng, Peng
name: Ding, Ming
name: Lopez-Perez, David
name: Pathirana, Pubudu N.
name: Li, Jun
name: Seneviratne, Aruna
name: Li, Yonghui
name: Poor, H. Vincent
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Recent years have seen rapid deployment of mobile computing and Internet of Things (IoT) networks, which can be mostly attributed to the increasing communication and sensing capabilities of wireless systems. Big data analysis, pervasive computing, and eventually artificial intelligence (AI) are envisaged to be deployed on top of the IoT and create a new world featured by data-driven AI. In this context, a novel paradigm of merging AI and wireless communications, called Wireless AI that pushes AI frontiers to the network edge, is widely regarded as a key enabler for future intelligent network evolution. To this end, we present a comprehensive survey of the latest studies in wireless AI from the data-driven perspective. Specifically, we first propose a novel Wireless AI architecture that covers five key data-driven AI themes in wireless networks, including Sensing AI, Network Device AI, Access AI, User Device AI and Data-provenance AI. Then, for each data-driven AI theme, we present an overview on the use of AI approaches to solve the emerging data-related problems and show how AI can empower wireless network functionalities. Particularly, compared to the other related survey papers, we provide an in-depth discussion on the Wireless AI applications in various data-driven domains wherein AI proves extremely useful for wireless network design and optimization. Finally, research challenges and future visions are also discussed to spur further research in this promising area.
description: Accepted at the IEEE Communications Surveys & Tutorials, 42 pages
Reflected entropy, symmetries and free fermions
Creators: name: Bueno, Pablo
name: Casini, Horacio
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Exploiting the split property of quantum field theories (QFTs), a notion of von Neumann entropy associated to pairs of spatial subregions has been recently proposed both in the holographic context -- where it has been argued to be related to the entanglement wedge cross section -- and for general QFTs. We argue that the definition of this "reflected entropy" can be canonically generalized in a way which is particularly suitable for orbifold theories -- those obtained by restricting the full algebra of operators to those which are neutral under a global symmetry group. This turns out to be given by the full-theory reflected entropy minus an entropy associated to the expectation value of the "twist" operator implementing the symmetry operation. Then we show that the reflected entropy for Gaussian fermion systems can be simply written in terms of correlation functions and we evaluate it numerically for two intervals in the case of a two-dimensional Dirac field as a function of the conformal cross-ratio. Finally, we explain how the aforementioned twist operators can be constructed and we compute the corresponding expectation value and reflected entropy numerically in the case of the $\mathbb{Z}_2$ bosonic subalgebra of the Dirac field.
description: 27 pages, 6 figures; v2: small modifications in section 3.3
Illuminating the Fundamental Contributors to Software Architecture Quality
Creators: name: Bachmann, Felix
name: Bass, Len
name: Klein, Mark H.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: An architectural tactic is a design decision that helps achieve a specific quality-attribute response. Such a tactic must be motivated by a quality-attribute analysis model. This report presents the basic concepts of analysis models for two quality attributes-modifiability and performance, identifies a collection of tactics that can be used to control responses within those models, and discusses how to analyze the models in terms of these tactics.

This report also describes how to interpret architectural designs in terms of analysis models and how to apply those models to specific architectures. In addition, it presents the analysis of several different architectural patterns taken from current literature.
The Gray tensor product for 2-quasi-categories
Creators: name: Maehara, Yuki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 18D05, 18D99, 18G55, 55U35, 55U40

description: We construct an $(\infty,2)$-version of the (lax) Gray tensor product. On the 1-categorical level, this is a binary (or more generally an $n$-ary) functor on the category of $Θ_2$-sets, and it is shown to be left Quillen with respect to Ara's model structure. Moreover we prove that this tensor product forms part of a "homotopical" (biclosed) monoidal structure, or more precisely a normal lax monoidal structure that is associative up to homotopy.
description: v3: 63 pages. Minor revision. Published version
Actinide and Lanthanide Dioxide Lattice Dilatation Mechanisms with Defect Ingrowth
Creators: name: Günay, S. D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: α-particle irradiated single-crystal isostructural oxide lattices (CmO2, AmO2, CeO2, UO2, NpO2, PuO2, ThO2) were modeled by molecular dynamics simulation method. Lattice parameter changes with IFP cation defects displayed exponential increases. These data were compatible with the available lattice parameter changes with α-particle dose experiments. Pre- and post- peaks emerged around principal peaks of irradiated oxide cation-cation radial distribution functions, which indicate obstruction and distortion type defects, respectively. Dependence of lattice dilatations on the number of obstruction type cation defects was examined. In a previous study, obstruction type uranium defects were found to be directly responsible for the UO2 lattice swelling and there was a linear relationship between them. It was also determined that this linear equation has two different slopes at low and high defect concentrations. In this paper, it was found that these phenomena were not specific to UO2 and applicable to all fluorite-structured actinide and lanthanide dioxides studied here. These findings provide clues about the existence of more general law.
description: 44 pages, 8 Figures, 4 Tables, Supplementary Material
Impact of Army Architecture Evaluations
Creators: name: Nord, Robert
name: Bergey, John K.
name: Blanchette, Stephen
name: Klein, Mark H.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: The Army Strategic Software Improvement Program (ASSIP) is a multiyear effort targeted at improving the way in which the Army acquires software-intensive systems. The ASSIP has funded a number of programs, in conjunction with the Carnegie Mellon Software Engineering Institute (SEI), to conduct software architecture evaluations using the Architecture Tradeoff Analysis Method (ATAM). Additionally, in cases when a system's architecture did not exist or was not ready to evaluate, the ASSIP sponsored Quality Attribute Workshops (QAWs). During the period of this effort, several other programs funded their own ATAM evaluations and QAWs. The goal of this study was to determine the benefits associated with using the ATAM and QAW.

This special report describes the results of a study of the impact that the ATAM evaluations and QAWs had on Army programs. All 12 programs that used the ATAM and/or QAW responded to a questionnaire whose objective was to determine the impact of the experience in terms of the quality of the system, the practices of the involved program office, stakeholders, and suppliers, and the overall value of the engagement.

The data gathered confirms that the use of ATAM-based architecture evaluations and QAWs are generally beneficial to system acquisitions and suggests that maximal benefit is achievable only if architecture-centric practices are built into the acquisition process.
Transmission in pseudospin-1 and pseudospin-3/2 semimetals with linear dispersion through scalar and vector potential barriers
Creators: name: Mandal, Ipsita
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the tunneling of pseudospin-1 and pseudospin-3/2 quasiparticles through a barrier consisting of both electrostatic and vector potentials, existing uniformly in a finite region along the transmission axis. First, we find the tunneling coefficients, conductivities, and Fano factors in the absence of the vector potential. Then we repeat the calculations by switching on the relevant magnetic fields. The features show clear distinctions, which can be used to identify the type of semimetals, although both of them exhibit linear band-crossing points.
description: similar transport properties have been studied in arXiv:2004.06134 and arXiv:2012.15567; there were some typographical errors in the published version; this arxiv version contains the corrected results; the corrigendum has been published in Physics Letters A 433C, 128027 (2022)
L’epigrafe ΜΝΗΜΟΣΥΝΗ di Fritz Schumacher per la KBW
Creators: name: Calandra Di Roccolino, Giacomo
Publisher: name: La Rivista di Engramma
Year: 2023
Subjects: Fritz Schumacher
Mnemosyne
KBW

description: In his essay, Calandra di Roccolino illustrates the history of the inscription dedicated to the mythical personification of memory, ΜΝΗΜΟΣΥΝΗ, placed on the vestibule door of the Kulturwissenschaftliche Bibliothek Warburg in Hamburg. The engraving is a central episode in the complex history of the library, linked to the collaboration between Warburg and architect Fritz Schumacher, who personally designed the epigraph that became one of the symbols of Warburg’s thought.
Inertial Navigation System Simulator: Behavioral Specification
Creators: name: Landherr, Stefan F.
name: Klein, Mark H.
name: Fowler, Kenneth J.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: The Real-Time Embedded Systems Testbed (REST) Project at the Software Engineering Institute is specifying and developing a representative real-time application. This document augments an original set of specifications written by a Navy affiliate. The purpose of this behavioral specification is to clarify and augment the original.
title: Comparative study of the effect of nutrients on motility and chemotaxis of Escherichia coli strains
Creators: name: Pandey, Shashank
Publisher: name: University of Glasgow
Year: 2020
Subjects: subject: Motility; Chemotaxis; Microfluidics; Microfluidic Device; Imaging; Single Cell; Microscopy; Glucose; Casamino Acids; Flagella; MG1655; MDS42; Escherichia coli; E. coli.

description: This thesis evaluates two strains of Escherichia coli MG1655 and MDS42 for their motility in different nutrient conditions in M9 minimal medium in 2 parts. It evaluates the effect of genome deletion in the motility and also observes the heterogeneity despite sharing the same genetically encoded machinery. The first part investigates Escherichia coli strains’ motility in 5 different medium compositions and the second part explores the chemotactic response of MG1655 to the linear gradients of different concentrations of Glucose using a single-layer membrane-based microfluidic device. In Part 1, we study the motility of MG1655 and MDS42 in different concentrations of glucose and casamino acids in M9 minimal medium. The motility experiments conducted as a part of this study observed the average cell velocities in the range of 2.9 ± 0.5 μm/s, which are significantly less than the values recorded in literature, for the strain MG1655. The lowest motility occurs in the medium (without casamino acids) with 0M glucose, followed by 10mM Glucose and then 10μM glucose concentration. The same trend is visible in the case of both the strains MG1655 and MDS42. The presence of casamino acids did not significantly affect the motility of MG1655 in the presence or absence of Glucose. Whereas, in the case of MDS42, the casamino acids lower the motility in the presence of Glucose but tend to have no significant effect in the absence of Glucose. The two strains, however, showed no significant difference in average velocity under the same medium conditions. In Part 2, we record and evaluate the chemotaxis of the MG1655 strain, using a single-layer membrane-based microfluidic device. The device generates a linear gradient of 10μM and 10mM glucose, to observe the chemotaxis of the MG1655 strain. The average of mean velocities for the 10μM gradient was higher than those observed in the 10mM gradient, but the difference was not significant. The higher fraction of cells (~67%) under the 10mM gradient showed almost a straight-line trajectory, unlike the cells under 10μM gradient. The cells that followed a nearly straight line path did all the more so in the case of the 10mM glucose gradient.