cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Report Universo in fiore 2021-22
Creators: name: AROSIO, Ilaria
name: BARBALINI, Laura
Publisher: name: O.A. Brera
Year: 2022

description: Universo in fiore è un corso di astronomia per il pubblico tenutosi dal 2011 al 2019 presso al Cupola a Fiore dell’INAF – Osservatorio Astronomico di Brera. Fin dalla sua prima edizione è stato monitorato con questionari di gradimento e Focus Group che hanno permesso di adattare sempre di più l’iniziativa alle esigenze degli utenti. Il dialogo costante con il pubblico e le numerose e ricche strategie di valutazione messe in campo negli anni permettono di considerare l’iniziativa una buona pratica di Terza Missione dell’Ente di Ricerca INAF. Dal 2020, a causa della pandemia, il corso ha cambiato modalità di fruizione passando alla forma online. Questo ha permesso di esplorare con successo nuove forme di interazione con il pubblico e aumentare il bacino di utenza del corso, sia numericamente che geograficamente, aprendo l’iniziativa a un pubblico nuovo senza perdere quello storico. Al secondo anno dell’esperienza del corso online questo report intende analizzare l’andamento del corso, la sua fruizione ed eventuali cambiamenti in atto nel pubblico e nella modalità di fruizione di eventi culturali nell’epoca post-pandemica.
Nonrelativistic expansion of type IIA NS5 brane
Creators: name: Roychowdhury, Dibakar
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We carry out nonrelativistic expansion for NS5 brane based on a codimension two foliation of type IIA supergravity background. We simultaneously expand the world-volume fields in an appropriate $ 1/c^2 $ expansion together with the background fluxes. When put together, the resulting procedure yields a finite world-volume action for nonrelativistic NS5 brane that is coupled to String Newton-Cartan background.
description: Published version
Design and piezoelectric energy harvesting properties of a ferroelectric cyclophosphazene salt
Creators: name: Deswal, Swati
name: Panday, Rishukumar
name: Naphade, Dipti R.
name: Cazade, Pierre
name: GUERIN, SARAH
name: Zareba, Jan K.
name: Steiner, Alexander
name: Ogale, Satishchandra
name: Anthopoulos, Thomas D.
name: Boomishankar, Ramamoorthy
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: Cyclophosphazenes offer a robust and easily modifiable platform for a diverse range of functional systems that have found applications in a wide variety of areas. Herein, for the first time, it reports an organophosphazene-based supramolecular ferroelectric [(PhCH2NH)6P3N3Me]I, [PMe]I. The compound crystallizes in the polar space group Pc and its thin-film sample exhibits remnant polarization of 5 µC cm−2. Vector piezoresponse force microscopy (PFM) measurements indicated the presence of multiaxial polarization. Subsequently, flexible composites of [PMe]I are fabricated for piezoelectric energy harvesting applications using thermoplastic polyurethane (TPU) as the matrix. The highest open-circuit voltages of 13.7 V and the maximum power density of 34.60 µW cm−2 are recorded for the poled 20 wt.% [PMe]I/TPU device. To understand the molecular origins of the high performance of [PMe]I-based mechanical energy harvesting devices, piezoelectric charge tensor values are obtained from DFT calculations of the single crystal structure. These indicate that the mechanical stress-induced distortions in the [PMe]I crystals are facilitated by the high flexibility of the layered supramolecular assembly.
Effect of irradiation on the spin of millisecond pulsars
Creators: name: Lan, Shunyi
name: Meng, Xiangcun
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A millisecond pulsar (MSP) is an old neutron star (NS) that has accreted material from its companion star, causing it to spin up, which is known as the recycling scenario. During the mass transfer phase, the system manifests itself as an X-ray binary. PSR J1402+13 is an MSP with a spin period of $5.89~{\rm ms}$ and a spin period derivative of $\log\dot{P}_{\rm spin}=-16.32$. These properties make it a notable object within the pulsar population, as MSPs typically exhibit low spin period derivatives. In this paper, we aim to explain how an MSP can posses high spin period derivative by binary evolution. By utilizing the stellar evolution code \textsc{MESA}, we examine the effects of irradiation on the companion star and the propeller effect on the NS during binary evolution. We demonstrate that irradiation can modify the spin period and mass of an MSP, resulting in a higher spin period derivative. These results suggest that the irradiation effect may serve as a key factor in explaining MSPs with high spin period derivatives.
description: Accepted for publication in ApJL. Compiled in AASTEX62
Sensitivities for coherent elastic scattering of solar and supernova neutrinos with future NaI(Tl) dark matter search detectors of COSINE-200/1T
Creators: name: Ko, Young Ju
name: Lee, Hyun Su
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We investigate the prospects for measuring the coherent elastic neutrino-nucleus scattering of solar and supernova neutrinos in future NaI(Tl) dark matter detection experiments. Considering the reduced background and improved light yield of the recently developed NaI(Tl) crystals, more than 3$σ$ observation sensitivities of the supernova neutrino within the Milky Way are demonstrated. In the case of the solar neutrino, approximately 3 observations are marginal with a 1 ton NaI(Tl) experiment assuming an order of magnitude reduced background, five photoelectron thresholds, and 5-year data exposure.
La Ciencia Abierta y los Recursos Educativos Abiertos en la escuela en tiempos de confinamiento
Creators: name: García-Peñalvo, F. J.
Publisher: name: Zenodo
Year: 2020
Subjects: Transformación digital; COVID-19; Recursos Educativos Abiertos; Ciencia Abierta

description: Conferencia invitada en el Noveno Congreso Iberoamericano de Aprendizaje Mediado por Tecnología (CIAMTE), celebrado de forma virtual desde la Ciudad de México del 21 al 23 de octubre 2020
The 2021 mutual phenomena involving the Galilean satellites of Jupiter and the inner satellite Thebe
Creators: name: Catani, L. M.
name: Assafin, M.
name: Morgado, B. E.
name: Santos-Filho, S.
name: Braga-Ribas, F.
name: Vieira-Martins, R.
name: Arcas-Silva, J.
name: Milone, A. C.
name: Lima, I. J.
name: Botelho, R. B.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Astrometric studies and orbital modeling of planetary moons have contributed significantly to advancing our understanding of their orbital dynamics. These studies require precise positions measured over extended periods. In this paper, we present the results of the 2021 Brazilian Jovian mutual phenomena campaign. The data correspond to eight events between Galilean satellites, in addition to a rare eclipse of Thebe, an inner satellite, totaling nine events. A geometric model along with the DE440/JUP365 ephemerides was used to reproduce the events and simulate the light curves. A Monte Carlo method and chi-squared statistics were used to fit the simulated light curves to the observations. The reflectance model adopted for our simulations was the complete version of the Oren-Nayer model. The average uncertainty of the relative positions of the Galilean satellites was 5 mas (15 km) and for the inner Thebe satellite 32 mas (96 km). The seven mutual events (nine independent observations) here analyzed represent and addition of 17% events (10% light curves) with respect to the PHEMU21 international campaign. Furthermore, our result of Thebe eclipse is only the second measurement published to date. Our results contribute to the ephemeris database, being fundamental to improving satellite orbits and thus minimizing their uncertainties.
description: 10 pages, 5 figures
Risk-Aware Stability, Ultimate Boundedness, and Positive Invariance
Creators: name: Kishida, Masako
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper introduces the notions of stability, ultimate boundedness, and positive invariance for stochastic systems in the view of risk. More specifically, those notions are defined in terms of the worst-case Conditional Value-at-Risk (CVaR), which quantifies the worst-case conditional expectation of losses exceeding a certain threshold over a set of possible uncertainties. Those notions allow us to focus our attention on the tail behavior of stochastic systems in the analysis of dynamical systems and the design of controllers. Furthermore, some event-triggered control strategies that guarantee ultimate boundedness and positive invariance with specified bounds are derived using the obtained results and illustrated using numerical examples.
description: under review. A typo has been fixed on April 19, 2022
Fostering better coding practices for data scientists
Creators: name: Pruim, Randall
name: Gîrjău, Maria-Cristiana
name: Horton, Nicholas J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation (stat.CO)
subject: Other Statistics (stat.OT)
subject: FOS: Computer and information sciences
subject: K.7.m

description: Many data science students and practitioners don't see the value in making time to learn and adopt good coding practices as long as the code "works". However, code standards are an important part of modern data science practice, and they play an essential role in the development of data acumen. Good coding practices lead to more reliable code and save more time than they cost, making them important even for beginners. We believe that principled coding is vital for quality data science practice. To effectively instill these practices within academic programs, instructors and programs need to begin establishing these practices early, to reinforce them often, and to hold themselves to a higher standard while guiding students. We describe key aspects of good coding practices for data science, illustrating with examples in R and in Python, though similar standards are applicable to other software environments. Practical coding guidelines are organized into a top ten list.
Evidence that superstructures comprise of self-similar coherent motions in high $Re_τ$ boundary layers
Creators: name: Deshpande, Rahul
name: de Silva, Charitha M.
name: Marusic, Ivan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We present experimental evidence that the superstructures in turbulent boundary layers comprise of smaller, geometrically self-similar coherent motions. The evidence comes from identifying and analyzing instantaneous superstructures from large-scale particle image velocimetry datasets acquired at high Reynolds numbers, capable of capturing streamwise elongated motions extending up to 12 times the boundary layer thickness. Given the challenge in identifying the constituent motions of the superstructures based on streamwise velocity signatures, a new approach is adopted that analyzes the wall-normal velocity fluctuations within these very long motions, which reveals the constituent motions unambiguously. The conditional streamwise energy spectra of the wall-normal fluctuations, corresponding exclusively to the superstructure region, are found to exhibit the well-known distance-from-the-wall scaling in the intermediate scale range. Similar characteristics are also exhibited by the Reynolds shear stress co-spectra estimated for the superstructure region, suggesting that geometrically self-similar motions are the constituent motions of these very-large-scale structures. Investigation of the spatial organization of the wall-normal momentum-carrying eddies also lends empirical support to the concatenation hypothesis for the formation of the superstructures. Association between the superstructures and self-similar motions is reaffirmed on comparing the vertical correlations of the momentum carrying motions, which are found to match with the mean correlations. The mean vertical coherence of these motions, investigated for the log-region across three decades of Reynolds numbers, exhibits a unique distance-from-the-wall scaling invariant with Reynolds number. The findings support the prospect for modelling these dynamically significant motions via data-driven coherent structure-based models.
description: Manuscript accepted for the Journal of Fluid Mechanics, with 25 pages, 15 figures
Forces are not Enough: Benchmark and Critical Evaluation for Machine Learning Force Fields with Molecular Simulations
Creators: name: Fu, Xiang
name: Wu, Zhenghao
name: Wang, Wujie
name: Xie, Tian
name: Keten, Sinan
name: Gomez-Bombarelli, Rafael
name: Jaakkola, Tommi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Machine Learning (cs.LG)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Molecular dynamics (MD) simulation techniques are widely used for various natural science applications. Increasingly, machine learning (ML) force field (FF) models begin to replace ab-initio simulations by predicting forces directly from atomic structures. Despite significant progress in this area, such techniques are primarily benchmarked by their force/energy prediction errors, even though the practical use case would be to produce realistic MD trajectories. We aim to fill this gap by introducing a novel benchmark suite for learned MD simulation. We curate representative MD systems, including water, organic molecules, a peptide, and materials, and design evaluation metrics corresponding to the scientific objectives of respective systems. We benchmark a collection of state-of-the-art (SOTA) ML FF models and illustrate, in particular, how the commonly benchmarked force accuracy is not well aligned with relevant simulation metrics. We demonstrate when and how selected SOTA methods fail, along with offering directions for further improvement. Specifically, we identify stability as a key metric for ML models to improve. Our benchmark suite comes with a comprehensive open-source codebase for training and simulation with ML FFs to facilitate future work.
description: 31 pages, 18 figures
Airborne pipeline docked to an earth reservoir to deliver water over long distance for aerial firefighting and irrigation.
Creators: name: Zisopoulos, Athanasios
Publisher: name: figshare
Year: 2020
Subjects: subject: 70503 Forestry Fire Management
subject: FOS: Agriculture, forestry and fisheries

description: The main idea of the invention is to use a long flying pipeline to deliver water to a forest fire. Another use could be to irrigate large areas in emergency situations.Our solution to transfer water with aν airborne pipeline is several thousand times more efficient. A typical 16-inch plastic pipe10 gives a water flow of s 7281 m3 per hour or 2427 times more water on target than the helicopter.The general functionality of the invention is very simple. The water is elevated from the basin with the pumping station through the long pipeline. It finally ejects water from the pipeline endpoint to15 the forest fire. The crucial difference is that the pipeline flies above the hills hanging from hundreds of drones.
Исследование электронно-энергетических спектров упруго и дискретно рассеянных электронов поверхности разрушения сплава Ti–6Al–4V после поперечно-винтовой прокатки при температуре 1000°С
Creators: name: Панин Виктор Евгеньевич
name: Шулепов Иван Анисимович
name: Ботаева Лариса Борисовна
name: Наркевич Наталья Аркадьевна
Publisher: name: Физическая мезомеханика
Year: 2020
Subjects: рассеяние энергии электронами
спектры упруго и дискретно рассеянных электронов
поперечно-винтовая прокатка при 1000 °С
сплав Ti–6Al–4V

description: Проведено исследование изменения спектров упруго и дискретно рассеянных электронов в сплаве Ti–6Al– 4V, подвергнутом поперечно-винтовой прокатке при Т = 1000 С, в сравнении с исходным состоянием. В равновесной а-фазе сплава межатомные связи формируются s-p электронами Al и их вклад небольшой. В результате закалки после поперечно-винтовой прокатки при Т = 1000 С в а-фазе возникает неравновесная а'-фаза. В образующейся а'-фазе выявлены атомы ванадия, d электроны которого принимают участие в межатомной связи. Это упрочняет а-фазу и обуславливает повышение низкотемпературной ударной вязкости сплава. В то же время ионы ванадия интенсивно рассеивают s-р электроны, ослабляя их вклад в межатомную связь. Это генерирует возникновение в зонах кривизны решетки локализованных потоков пластического течения, которые развиваются в поле кулоновского отталкивания электронов и создают высокую релаксационную способность сплава при низких температурах. Установлен фундаментальный эффект связи очень высокого упрочнения с очень высоким релаксационным фактором. Полученные результаты объясняются эффектом структурной трансформации.
Влияние временных параметров импульса воздействия на динамическую прочность в условиях откола
Creators: name: Михайлова Наталья Валерьевна
name: Петров Юрий Викторович
Publisher: name: Физическая мезомеханика
Year: 2020
Subjects: нестабильность динамической прочности
инкубационное время
откольное разрушение
структурно-временной подход

description: Последние экспериментальные работы по откольному разрушению показывают, что параметры нагружающего импульса могут привести к нестабильности скоростной зависимости динамической прочности материала. В данной работе рассматривается влияние параметров динамического воздействия на временные зависимости предельных напряжений материала. Для этого было выполнено моделирование откольного разрушения на примере ультрачистого алюминия. Временные зависимости напряжений были получены из одномерной волновой задачи в упругой постановке. Условия разрушения определялись критерием инкубационного времени для откольного разрушения. В результате было показано, что динамическая прочность может зависеть не только от скорости деформирования, но и от других параметров временного профиля воздействующего импульса, а используемый в работе структурно-временной подход при моделировании разрушения позволяет учесть историю нагружения, что делает его удобным инструментом для учета соответствующих эффектов. Проведен расчет динамической прочности с изменением параметров временного профиля ударного импульса. Скоростные зависимости предельных напряжений, полученные для разных видов воздействия, оказываются различными, что согласуется с экспериментальными данными.
Standard Model evaluation of $\varepsilon_K$ using lattice QCD inputs for $\hat{B}_K$ and $V_{cb}$
Creators: name: Bailey, Jon A.
name: Jang, Yong-Chull
name: Lee, Weonjong
name: Park, Sungwoo
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report the Standard Model evaluation of the indirect CP violation parameter $\varepsilon_K$ using inputs determined from lattice QCD: the kaon bag parameter $\hat{B}_K$, $ξ_0$, $|V_{us}|$ from the $K_{\ell 3}$ and $K_{μ2}$ decays, and $|V_{cb}|$ from the axial current form factor for the exclusive decay $\bar{B} \to D^* \ell \barν$ at zero-recoil. The theoretical expression for $\varepsilon_K$ is thoroughly reviewed to give an estimate of the size of the neglected corrections, including long distance effects. The Wolfenstein parametrization $(|V_{cb}|, λ, \barρ, \barη)$ is adopted for CKM matrix elements which enter through the short distance contribution of the box diagrams. For the central value, we take the Unitarity Triangle apex $(\barρ, \barη)$ from the angle-only fit of the UTfit collaboration and use $V_{us}$ as an independent input to fix $λ$. We find that the Standard Model prediction of $\varepsilon_K$ with exclusive $V_{cb}$ (lattice QCD results) is lower than the experimental value by $3.4σ$. However, with inclusive $V_{cb}$ (results of the heavy quark expansion), there is no gap between the Standard Model prediction of $\varepsilon_K$ and its experimental value. For the calculation of $\varepsilon_K$, we perform the renormalization group running to obtain $η_{cc}$ at next-to-next-to-leading-order; we find $η_{cc}^\mathrm{NNLO}=1.72(27)$.
description: 20 pages, 3 figures, references augmented, typos fixed
Locating Theorems of Differential Inclusions Governed by Maximally Monotone Operators
Creators: name: Dao, Minh N.
name: Saoud, Hassan
name: Théra, Michel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this paper, we are interested in studying the asymptotic behavior of the solutions of differential inclusions governed by maximally monotone operators. In the case where the LaSalle's invariance principle is inconclusive, we provide a refined version of the invariance principle theorem. This result derives from the problem of locating the $ω$-limit set of a bounded solution of the dynamic. In addition, we propose an extension of LaSalle's invariance principle, which allows us to give a sharper location of the $ω$-limit set. The provided results are given in terms of nonsmooth Lyapunov pair-type functions.
Creating a renewables giant: the rise of national champions in India's solar sector
Creators: name: Keshwani, Simran
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: The energy sector in India is undergoing significant disruptions, displacing an economic growth model predicated on the growing use of fossil fuels to a new type of economic growth trajectory based on renewables. India, in the past decade, has also rapidly emerged as the world's fifth largest user of solar energy. What sets India apart from other national 'green growth' initiatives is the country's growing specialisation in the solar integration segment of the manufacturing value chain. This includes solar developer and EPC (engineering, procurement, and construction) firms such as Adani Green, ReNew Power, Sterling & Wilson, Azure Power, Larsen & Toubro among others. How do we account for the rise of these globally competitive 'latecomer' firms from a developing country such as India? I argue that developmentally oriented bureaucrats in India's renewable energy sector have been critical in creating a domestic institutional context, which has sought to create networks of interdependence between government and business actors reminiscent of the type seen in East Asia's former "tiger economies". By illuminating the political and institutional conditions over the emergence of a developmental project in India's renewables sector, my aim is to broaden understandings of the Indian state's guiding role in the economy – beyond narrow and simplistic portrayals pertaining to India's so-called weak state.
К проблеме построения теоретической мезомеханики: калибровочные модели динамики континуума с внутренними степенями свободы движения
Creators: name: Мухамедов Альфэрид Мавиевич
Publisher: name: Физическая мезомеханика
Year: 2020
Subjects: калибровочные модели мезомеханики
внутренние степени свободы движения

description: В рамках задачи построения теории мезомеханики сплошной среды предложены три класса моделей, описывающих разные варианты геометризации неклассических движений континуума. Каждая из моделей представляет собой поднятие характеристик движения в расслоение дополнительных координат над пространственновременной базой с определенным способом задания основных уравнений. В зависимости от того, является ли структура, выбранная в качестве главной, внешней или внутренней по отношению к динамике континуума, выделяются внутренние, внешние и смешанные версии описания движения. Выдвинута гипотеза о том, что динамика вихревых образований с диссипацией может описываться лагранжевыми уравнениями движения. Эта гипотеза основана на том естественном допущении, что само определение вихревого образования, представляющего собой в целом нечеткое понятие, должно быть поставлено в зависимость от выбора наблюдаемых величин. В этом случае понятие вихревой структуры приобретает однозначность, а выбор лагранжиана становится моделью динамики таких образований. В качестве диверсификации применений предложенных моделей приведены разные способы построения структур с дополнительными свойствами. Одним из них является метод классификации структурных объектов по группам их симметрий. В рамках этого метода выделена сквозная для всех моделей задача, состоящая в классификации объекта внутренней связности расслоения динамических координат. Представлен новый принцип мезомеханики, аналогичный эрлангенской программе Клейна в геометрии, который выделяет деформации по характеру вносимых ими разрушений в систему симметрий структур, которыми обладают недеформированные состояния континуума.
Research data supporting: "Reconstructing reactivity in dynamic host–guest systems at atomistic resolution: amide hydrolysis under confinement in the cavity of a coordination cage"
Creators: name: Piane, Massimo Delle
name: Pesce, Luca
name: Cioni, Matteo
name: Pavan, Giovanni Maria
Publisher: name: Zenodo
Year: 2022
Subjects: Molecular Dynamics
Amide hydrolysis
Reactivity

description: his repository contains the set of data shown in the paper "Reconstructing reactivity in dynamic host–guest systems at atomistic resolution: amide hydrolysis under confinement in the cavity of a coordination cage", published on Chemical Science (DOI:10.1039/D2SC02000A).
Recurrence Relations for $S$-Legal Index Difference Sequences
Creators: name: Moura, Guilherme Zeus Dantas e
name: Keisling, Andrew
name: Lilly, Astrid
name: Mauro, Annika
name: Miller, Steven J.
name: Phang, Matthew
name: Iannuzzelli, Santiago Velazquez
Publisher: name: arXiv
Year: 2022
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11B39, 65Q30

description: Zeckendorf's Theorem implies that the Fibonacci number $F_n$ is the smallest positive integer that cannot be written as a sum of non-consecutive previous Fibonacci numbers. Catral et al. studied a variation of the Fibonacci sequence, the Fibonacci Quilt sequence: the plane is tiled using the Fibonacci spiral, and integers are assigned to the squares of the spiral such that each square contains the smallest positive integer that cannot be expressed as the sum of non-adjacent previous terms. This adjacency is essentially captured in the differences of the indices of each square: the $i$-th and $j$-th squares are adjacent if and only if $|i - j| \in \{1, 3, 4\}$ or $\{i, j\} = \{1, 3\}$. We consider a generalization of this construction: given a set of positive integers $S$, the $S$-legal index difference ($S$-LID) sequence $(a_n)_{n=1}^\infty$ is defined by letting $a_n$ to be the smallest positive integer that cannot be written as $\sum_{\ell \in L} a_\ell$ for some set $L \subset [n-1]$ with $|i - j| \notin S$ for all $i, j \in L$. We discuss our results governing the growth of $S$-LID sequences, as well as results proving that many families of sets $S$ yield $S$-LID sequences which follow simple recurrence relations.
description: 18 pages, 4 figures
The effect of graphene-oxide nanoplatelets on the high-velocity impact response of glass laminate aluminum reinforced epoxy
Creators: name: Heydari, Amir
name: Khoramishad, Hadi
name: Alikhani, Hossein
name: Berto, Filippo
Publisher: name: Физическая мезомеханика
Year: 2020
Subjects: fiber metal laminates
glass laminate aluminum reinforced epoxy
graphene-oxide nanoplatelets
highvelocity impact
damage mechanisms

description: In this paper, the influence of graphene-oxide nanoplatelets (GONPs) on the response of the glass laminate aluminum reinforced epoxy (GLARE) under high-velocity impact loading was investigated. Different weight percentages of nanofillers including 0.25, 0.50 and 1.00 wt % GONPs and a hybrid of 0.25 wt % GONPs and 0.25 wt % multiwalled carbon nanotubes (MWCNTs) were used for reinforcing GLAREs. Addition of 0.5 wt % GONPs reduced the residual impactor velocity by 33% and increased the energy absorption capability of GLARE by 22.9%. The SEM micrographs showed reinforced adhesion between the fibers and matrix and the optical microscope images showed improved cohesion in the matrix of the reinforced GLARE. This caused the secondary damage region in the composite layer to decrease considerably. However, GONPs imposed negative effect on the suppression of composite layer delamination and also interfacial strength between the composite and aluminum layers that provided more extensive plastic deformation of aluminum as an important energy absorption mechanism of GLAREs. Furthermore, the composite layers of the unreinforced and reinforced GLAREs were subjected to tensile test and the results showed improvements in the tensile stiffness, strength and toughness by 33.4, 45.0 and 25.6%, respectively, due to adding of 0.5 wt % GONPs to the matrix.
Preferential Attraction Effects with Visual Stimuli: The Role of Quantitative versus Qualitative Visual Attributes (Brendl, Atasoy, and Samson, 2022)
Creators: name: Samson, Coralie
name: Brendl, Miguel
name: Atasoy, Ozgun
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: asymmetric dominance
subject: attraction effect
subject: context effects
subject: metathetic
subject: prothetic
subject: qualitative
subject: quantitative
subject: repulsion effect

description: Additional files to the article titled Preferential Attraction Effects with Visual Stimuli: The Role of Quantitative versus Qualitative Visual Attributes (Brendl, Atasoy, and Samson, 2022)
Conductive and convective heat transfer in fluid flows between differentially heated and rotating cylinders
Creators: name: Lopez, Jose M.
name: Marques, Francisco
name: Avila, Marc
Publisher: name: arXiv
Year: 2015
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The flow of fluid confined between a heated rotating cylinder and a cooled stationary cylinder is a canonical experiment for the study of heat transfer in engineering. The theoretical treatment of this system is greatly simplified if the cylinders are assumed to be of infinite length or periodic in the axial direction, in which cases heat transfer occurs only through conduction as in a solid. We here investigate numerically heat transfer and the onset of turbulence in such flows by using both periodic and no-slip boundary conditions in the axial direction. We obtain a simple linear criterion that determines whether the infinite-cylinder assumption can be employed. The curvature of the cylinders enters this linear relationship through the slope and additive constant. For a given length-to-gap aspect ratio there is a critical Rayleigh number beyond which the laminar flow in the finite system is convective and so the behaviour is entirely different from the periodic case. The criterion does not depend on the Prandtl number and appears quite robust with respect to the Reynolds number. In particular, it continues to work reasonably in the turbulent regime.
description: 25 pages, 9 figures
Сверхмногоцикловая усталость алюминиевого сплава Д16Т
Creators: name: Шанявский Андрей Андреевич
name: Никитин Александр Дмитриевич
name: Palin-Luck, Thierry
Publisher: name: Физическая мезомеханика
Year: 2020
Subjects: сверхмногоцикловая усталость
алюминиевый сплав
фрактография
механизмы разрушения
сферические частицы

description: Выявлены и обсуждены фрактографические особенности зарождения и распространения усталостных трещин в образцах из алюминиевого сплава Д16Т в области сверхмногоцикловой усталости при частоте нагружения 20 кГц. Разрушение образцов в интервале долговечностей 2.8 x 108 – 5.1 x 109 циклов происходит при зарождении трещины с поверхности и под поверхностью. Очаг под поверхностью сформирован в виде межзеренного разрушения на стыке зерен или гладкой фасетки внутризеренного разрушения. Основное развитие разрушения характеризуется разориентированными фасетками, образованными в результате разрушения материала сдвигом. Наблюдаемый каскад ориентированных и разупорядоченных ямок на фоне фасеток связан с возникновением контактного взаимодействия берегов трещины, образованием эллиптических и сферических частиц c последующим чередованием их перемещения и вдавливания в поверхность излома
The Gynecological Sequelae of Sexual Violence in Adolescence: A Scoping Review Protocol
Creators: name: Hill, Kelcie
name: Robinson, Lauren
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Obstetrics and Gynecology
subject: Medicine and Health Sciences
subject: Medical Specialties
subject: adolescent
subject: Gynecological
subject: sexual violence

description: Question What are the gynecological outcomes, consequences, and/or symptoms of adolescent females victimized by sexual violence? Summary This protocol explains the benefit of knowing the gynecological effects of victims of sexual violence. The protocol details the methods of data collection and analysis.
Effects of Shape on Interaction Dynamics of Tetrahedral Nanoplastics and the Cell Membrane
Creators: name: Yong, Xin
name: Du, Ke
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Cellular uptake of nanoplastics is instrumental in their environmental accumulation and transfer to humans through the food chain. Despite extensive studies using spherical plastic nanoparticles, the influence of the morphological characteristics of environmentally released nanoplastics is understudied. Using dissipative particle dynamics simulations, we modeled the interactions between a cell membrane and hydrophobic nanotetrahedra, which feature high shape anisotropy and large surface curvature seen for environmental nanoplastics. We observe robust uptake of nanotetrahedra with sharp vertices and edges by the lipid membrane. Two local energy minimum configurations of nanotetrahedra embedded in the membrane bilayer were identified for particles of large sizes. Further analysis of particle dynamics within the membrane shows that the two interaction states exhibit distinct translational and rotational dynamics in the directions normal and parallel to the plane of the membrane. The membrane confinement significantly arrests the out-of-plane motion, resulting in caged translation and subdiffusive rotation. While the in-plane diffusion remains Brownian, we find that the translational and rotational modes decouple from each other as the particle size increases. The rotational diffusion decreases by a greater extent compared to the translational diffusion, deviating from the continuum theory predictions. These results provide fundamental insights into the shape effect on the nanoparticle dynamics in crowded lipid membranes.
description: 25 pages, 10 figures, 1 table
Об управлении режимами сейсмической активности в сегментах тектонических разломов с применением вибрационных воздействий и закачки растворов через скважины
Creators: name: Ружич Валерий Васильевич
name: Вахромеев Андрей Гелиевич
name: Левина Елена Алексеевна
name: Сверкунов Сергей Александрович
name: Шилько Евгений Викторович
Publisher: name: Физическая мезомеханика
Year: 2020
Subjects: сейсмобезопасность
эксгумированный разлом
натурный эксперимент
режимы сейсмической генерации
закачка раствора
виброимпульсное воздействие
индукция землетрясения
релаксация сдвиговых напряжений

description: С позиций физической механики анализируются возможности нового подхода к эффективному решению проблемы обеспечения сейсмической безопасности, основанного на применении контролируемых техногенных воздействий на сейсмоопасные сегменты разломных зон. Подход разработан на основе натурных экспериментов во фрагментах сейсмоактивных разломов Байкальской рифтовой зоны и коллизионных структур Монголии. В статье приводятся наиболее яркие примеры применения техногенных виброимпульсных воздействий на высоконапряженные участки зон разломов в сочетании с управляемой закачкой жидкостей через глубокие скважины. Обсуждение результатов воздействий на изучаемые фрагменты разломных зон проводится на основе результатов геологического исследования физико-химических процессов в зонах длительно живущих сейсмоактивных разломов и современных достижений в области глубокого бурения при разработке и эксплуатации месторождений углеводородов. Обосновывается концепция управляемой релаксации сдвиговых напряжений в потенциально опасных сегментах разломов, в которых выявляются признаки подготовки опасных очагов землетрясений. Обсуждаются возможности реализации данной концепции в ближайшей перспективе.
Development of new models for tensile modulus of metal/carbon nanotubes nanocomposites
Creators: name: Zare, Yasser
name: Rhee, Kyong Yop
Publisher: name: Физическая мезомеханика
Year: 2020
Subjects: metal/CNTs nanocomposites
tensile modulus
modeling

description: The current paper studies the development of new models for the prediction of tensile modulus in metal/carbon nanotubes (CNTs) nanocomposites. Several composite models such as the Hirsch, Hui–Shia, developed Halpin–Tsai for 3D fillers and Lewis–Nielsen models can present appropriate predictions compared to experimental results of a Cu/multiwalled CNTs (MWCNTs) sample. Furthermore, Takayanagi model reveals that the effect of the interface phase should be considered for the present nanocomposite. Therefore, an appropriate evaluation of the thickness and modulus of the interphase is carried out by the Ji model. In addition, new models are developed based on the modified rule of mixtures and Kerner–Nielsen models. Many ineffective and difficultly characterized parameters are eliminated from the suggested models. The developed models demonstrate the best predictability together with significant simplicity for the calculation of tensile modulus in nanocomposites.
Addendum: Associations between autonomous functioning, motivation, civic engagement, and voting
Creators: name: Cosme, Danielle
name: Falk, Emily
name: Cooper, Nicole
name: Tartak, Jose
name: Paul, Alexandra
name: Chan, Hang Yee
name: Scholz, Christin
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social Psychology
subject: Psychology
subject: FOS: Psychology
subject: Social and Behavioral Sciences
subject: autonomy
subject: civic engagement
subject: goal pursuit
subject: motivation
subject: self-determination
subject: voting

description: This is an addendum to the following preregistration: https://osf.io/ej8zb
Investigation of variation in fluorescence intensity from rhodamine 6G Dye
Creators: name: Iftiquar, S. M.
name: Zilay, H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Variation in fluorescence intensity from rhodamine 6G dye was investigated. A small volume of dye solution was optically excited with a 0.4 mW, 532nm wavelength cw-laser light. The dye was dissolved in methanol and glycerol for a concentration of 10mg/ml. With the optical excitation, initially the fluorescence intensity was observed to rise, and then it decayed, along with a steady shift of fluorescence peak from 562 nm to 543 nm. The observation of initial enhancement in fluorescence from start to 7 minutes of excitation, can partly be due to the low excitation power, therefore slower rate of change of fluorescence intensity with time. Simulation studies indicate that the photo bleaching was taking place from all the energy states of the dye molecules, which is an extension of the concept that the photo bleaching takes place at the excited triplet state whereas the fluorescence takes place due to transition between ground and excited singlet states. A steady shift in fluorescence peak position, from 562 nm to 543 nm, was observed during the fluorescence life of the dye, at a rate of 0.0113 nm/s during fluorescence enhancement and 0.026 nm/s during photo bleaching.
description: 14 pages, 7 figures
A nonlocal strain gradient theory for porous functionally graded curved nanobeams under different boundary conditions
Creators: name: Zenkour, Ashraf M.
name: Radwan, Ahmed F.
Publisher: name: Физическая мезомеханика
Year: 2020
Subjects: porosity
functionally graded curved nanobeams
bending
buckling
free vibration
boundary conditions
nonlocal strain gradient theory

description: This paper investigates the bending, buckling and free vibration behaviors of porous functionally graded curved nanobeams with different boundary conditions via a nonlocal strain gradient theory. The stresses are dependent on the strain gradients according to the nonlocal strain gradient theory. This theory contains both nonlocal and material length-scale parameters. The three-variable sinusoidal shear deformation beam theory is used to describe the displacement field and do not need any shear correction factor. The nonlocal strain gradient theory is employed to capture both hardening and softening stiffness influences on the present nanobeams. The material properties for the present porous functionally graded curved nanobeams are varying through-the-thickness due to the power law model. Hamilton’s principle is applied to obtain the governing equations of porous functionally graded curved nanobeams. Numerical results are validated by comparison with the corresponding ones of perfect functionally graded curved nanobeams in the literature. The effects of the strain gradient parameter, opening angle, nonlocal parameter, boundary conditions, power-law index, porosity factor on the bending, buckling and free vibration frequencies of perfect and porous functionally graded curved nanobeams are all investigated.
Tecnologias em Saúde aplicadas na segurança do paciente na maternidade: revisão de escopo
Creators: name: da Silva, Karine
name: Messias, Cláudia
name: de Almeida, Yasmin
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Calidad de la Atención de Salud
subject: Health Technology
subject: Hospitals, Maternity
subject: Maternidades
subject: Patient Safety
subject: Qualidade da Assistência à Saúde
subject: Quality of Health Care
subject: Segurança do Paciente
subject: Seguridad del Paciente
subject: Technology
subject: Tecnologia
subject: Tecnología
subject: Tecnología de la Salud
subject: Tecnologia em Saúde

description: English title: Health Technologies applied to patient safety in the maternity ward: scoping review. Objetivo: 1) Mapear as evidências encontradas na literatura científica sobre as tecnologias em saúde que estão sendo aplicadas à segurança do paciente na maternidade; 2) Descrever as inter-relações entre o uso da tecnologia em saúde e a qualidade da assistência aos pacientes internados na maternidade.
Mobilizing Threat: The Relationship Between Perceived Cost and Threat Articulation
Creators: name: Crane, joseph
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: Threat is often depicted as motivation for taking part in collective action and for groups that already have resources and opportunities, the cost of inaction more directly balance against the cost of taking action. I test this assertion by measuring the anticipated cost of participating in a planned protest event and the discursive framing of threat in message board conversations between early Tea Party Movement supporters. I operationalize threat framing as identifying a threat and further articulating it as in four possible ways: as more severe, more urgent, identifying a protagonist, and identifying an antagonist. Data comes from the conservative website FreeRepublic.com; comments were posted from mid-February through mid-September, 2009. I sort comments into four major waves of protest, and find that when anticipated cost is higher, threats are more often identified and articulated.
Operational Transparency in Algorithm-Augmented Services: Phase 1 - Addendum 10.30.2022
Creators: name: Snyder, Clare
name: Keppler, Samantha
name: Leider, Stephen
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Business
subject: Technology and Innovation
subject: Business Administration, Management, and Operations
subject: Social and Behavioral Sciences

description: Snyder, et al. (2022, Oct. 24). Operational Transparency in Algorithm-Augmented Services: Phase 1. Retrieved from https://osf.io/ebts7
The flow method for the Baker-Campbell-Hausdorff formula: exact results
Creators: name: Zadra, Federico
name: Bravetti, Alessandro
name: García-Chung, Angel Alejandro
name: Seri, Marcello
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Leveraging techniques from the literature on geometric numerical integration, we propose a new general method to compute exact expressions for the BCH formula. In its utmost generality, the method consists in embedding the Lie algebra of interest into a subalgebra of the algebra of vector fields on some manifold by means of an isomorphism, so that the BCH formula for two elements of the original algebra can be recovered from the composition of the flows of the corresponding vector fields. For this reason we call our method the flow method. Clearly, this method has great advantage in cases where the flows can be computed analytically. We illustrate its usefulness on some benchmark examples where it can be applied directly, and discuss some possible extensions for cases where an exact expression cannot be obtained.
description: Refereed version
Аналитический подход к вычислению диссипации энергии в окрестности вершины усталостной трещины
Creators: name: Кожевникова Марина Евгеньевна
Publisher: name: Физическая мезомеханика
Year: 2020
Subjects: усталостная трещина
модель Дагдейла–Баренблатта
модель Леонова–Панасюка–Дагдейла
диссипация энергии
прямая и обратная циклические пластические зоны

description: В процессе циклического нагружения в окрестности вершины трещины вследствие гистерезисных потерь выделяется теплота. Согласно последним экспериментальным исследованиям тепловая энергия сосредотачивается как в обратной, так и в прямой циклических пластических зонах. Аналитически проследить изменение тепловыделения с ростом числа циклов нагружения позволяет подход, в основе которого лежит предположение о том, что энергия гистерезиса одного цикла усталости для трещины Дагдейла может быть аппроксимирована посредством параметра трещиностойкости. В рамках этого подхода, а также модифицированных моделей Леонова– Панасюка–Дагдейла и Дагдейла–Баренблатта с учетом эффекта разгрузки и упрочнения получены аналитические формулы, позволяющие оценить величину диссипации энергии в окрестности вершины трещины за один цикл нагружения. При этом величина диссипации энергии последовательно вычисляется в прямой и обратной циклических пластических зонах на этапах нагружения и разгрузки соответственно для идеально-упругопластического материала и материала с изотропным билинейным упрочнением. Для оценки накопленной деформации к началу следующего цикла используется деформационный критерий разрушения. Для первого цикла нагружения полученные аналитические значения хорошо согласуются с экспериментально-численными значениями, найденными в результате испытания образцов из алюминиевого сплава AA2024-T3. Для последующих циклов нагружения, после определенного числа циклов, наблюдается монотонное убывание значений диссипации энергии в прямой циклической пластической зоне, полученных аналитическим путем, на фоне монотонного возрастания экспериментально-численных результатов. Для диссипации энергии в обратной циклической пластической зоне отмечается общая динамика падения значений вплоть до нуля, полученных аналитическим и экспериментальночисленным путем, вследствие исчерпания ресурса пластичности в окрестности вершины усталостной трещины.