cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Articulating life-itself : growth, place and movement on Mugaba (Rennell) in the Solomon Islands
Creators: name: Browne, Mia Kimberly
Publisher: name: University of St Andrews
Year: 2020
Subjects: subject: DU850.B8
subject: Rennellese (Solomon Islands people)--Social life and customs
subject: Solomon Islands--History

description: Mugaba (Rennell) and Mugiki (Bellona) in the Solomon Islands, is the site of multiple stories, to which different values are given through different registers of 'life-itself'. Research expeditions that renamed Mugaba's life forms would later provide the compelling qualities to merit East Rennell as a UNESCO World Heritage Site (and later as World Heritage in Danger). Earlier ethnographic accounts that endeavoured to capture the last glimpses of a pre-Christian culture, represented both Euro-American genetic legacies, and Rennellese and Bellonese descriptions of people 'coming out of place'. Fieldwork on East Rennell spanned over two years, exploring how Rennellese people have folded these converging stories into their analyses of historical becoming, creating novel articulations of life and its processes. Under the research theme 'Life Itself in the Pacific' at the Centre for Pacific Studies, this work takes Rennellese descriptions of life (human and non-human others) and its contingencies as its starting point. It explores Rennellese articulations of Life-Itself, how people's growth is also enabled by different kinds of movements and flows - those that have elsewhere been qualified as 'history', 'kinship', 'gender', and even 'ecology' - to examine what is at risk in an 'endangered' World Heritage Site.
Magnetic resonance of rubidium atoms passing through a multi-layered transmission magnetic grating
Creators: name: Nagata, Y.
name: Kurokawa, S.
name: Hatakeyama, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We measured the magnetic resonance of rubidium atoms passing through periodic magnetic fields generated by two types of multilayered transmission magnetic grating. One of the gratings reported here was assembled by stacking four layers of magnetic films so that the direction of magnetization alternated at each level. The other grating was assembled so that the magnetization at each level was aligned. For both types of grating, the experimental results were in good agreement with our calculations. We studied the feasibility of extending the frequency band of the grating and narrowing its resonance linewidth by performing calculations. For magnetic resonance precision spectroscopy, we conclude that the multi-layered transmission magnetic grating can generate periodic fields with narrower linewidths at higher frequencies when a larger number of layers is assembled at a shorter period length. Moreover, the frequency band of this type of grating can potentially achieve frequencies of up to hundreds of PHz.
description: 5 pages, 8 figures
UK Reproducibility Network (UKRN) Open and Transparent Research Practices Survey I
Creators: name: Hughes-Noehrer, Lukas
name: Stewart, Andrew
name: Fortunato, Laura
name: Henderson, Emma
name: Farran, Emily
Publisher: name: University of Manchester
Year: 2023
Subjects: Research, science and technology policy

description: This repository contains the metadata of the first UK Reproducibility Network (UKRN) Open and Transparent Research (OTRP) Survey
 Contents: - Ethics application - Ethics letter of approval - Survey questionnaire - Participant information sheet (PIS) - Data management plan (DMP)
 We want to thank further people involved in shaping the survey: Iain Brennan (University of Hull), Tanita Casci (University of Oxford), Leah Maughan (Northumbria University), Marcello Maria (University of Reading), Emma Norris (Brunel), Thomas Rhys Evans (University of Greenwich), Eike Rinke (University of Leeds), Suzanne Stewart (University of Chester), Shoaib Sufi (University of Manchester) and Rhiannon Wilson (University of Bath)
Ordered phases in coupled nonequilibrium systems: dynamic properties
Creators: name: Chakraborty, Shauri
name: Chatterjee, Sakuntala
name: Barma, Mustansir
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the dynamical properties of the ordered phases obtained in a coupled nonequilibrium system describing advection of two species of particles by a stochastically evolving landscape. The local dynamics of the landscape also gets affected by the particles. In a companion paper we have presented static properties of different phases that arise as the two-way coupling parameters are varied. In this paper we discuss the dynamics. We show that in the ordered phases macroscopic particle clusters move over an ergodic time-scale growing exponentially with system size but the ordered landscape shows dynamics over a faster time-scale growing as a power of system size. We present a scaling ansatz that describes several dynamical correlation functions of the landscape measured in steady state.
Gravity at a Quantum Condensate
Creators: name: Atanasov, Victor
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Provided a quantum superconducting condensate is allowed to occupy a curved hyper-plane of space-time, a geometric potential from the kinetic term arises. An energy conservation relation involving the geometric field at every material point in the superconductor can be demonstrated. The induced three-dimensional scalar curvature is directly related to the wavefunction/order parameter of the quantum condensate thus pointing the way to a possible experimental procedure to artificially induce curvature of space-time via change in the electric/probability current density.
Gigantic negative magnetoresistance in a disordered topological insulator
Creators: name: Breunig, Oliver
name: Wang, Zhiwei
name: Taskin, A. A.
name: Lux, Jonathan
name: Rosch, Achim
name: Ando, Yoichi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: With the recent discovery of Weyl semimetals, the phenomenon of negative magnetoresistance (MR) is attracting renewed interest. While small negative MR can occur due to the suppression of spin scattering or weak localization, large negative MR is rare in materials, and when it happens, it is usually related to magnetism. The large negative MR in Weyl semimetals is peculiar in that it is unrelated to magnetism and comes from chiral anomaly. Here we report that there is a new mechanism for large negative MR which is not related to magnetism but is related to disorder. In the newly-synthesized bulk-insulating topological insulator TlBi$_{0.15}$Sb$_{0.85}$Te$_2$, we observed gigantic negative MR reaching 98% in 14 T at 10 K, which is unprecedented in a nonmagnetic system. Supported by numerical simulations, we argue that this phenomenon is likely due to the Zeeman effect on a barely percolating current path formed in the disordered bulk. Since disorder can also lead to non-saturating linear MR in Ag$_{2+δ}$Se, the present finding suggests that disorder engineering in narrow-gap systems is useful for realizing gigantic MR in both positive and negative directions.
description: Theory part substantially extended. 12 pages, 4 figures
Singular Instantons in Eddington-inspired-Born-Infeld Gravity
Creators: name: Arroja, Frederico
name: Chen, Che-Yu
name: Chen, Pisin
name: Yeom, Dong-han
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work, we investigate $O(4)$-symmetric instantons within the Eddington-inspired-Born-Infeld gravity theory (EiBI). We discuss the regular Hawking-Moss instanton and find that the tunneling rate reduces to the General Relativity (GR) value, even though the action value is different by a constant. We give a thorough analysis of the singular Vilenkin instanton and the Hawking-Turok instanton with a quadratic scalar field potential in the EiBI theory. In both cases, we find that the singularity can be avoided in the sense that the physical metric, its scalar curvature and the scalar field are regular under some parameter restrictions, but there is a curvature singularity of the auxiliary metric compatible with the connection. We find that the on-shell action is finite and the probability does not reduce to its GR value. We also find that the Vilenkin instanton in the EiBI theory would still cause the instability of the Minkowski space, similar to that in GR, and this is observationally inconsistent. This result suggests that the singularity of the auxiliary metric may be problematic at the quantum level and that these instantons should be excluded from the path integral.
description: 23 pages, version accepted in JCAP
Ozadje specifičnih EU politik
Creators: name: dr. Kolar, Jana
Publisher: name: Zenodo
Year: 2023

description: Predstavitev z naslovom Ozadje specifičnih EU politik iz enodnevnega usposabljanja s področja predstavitve in izvajanja centraliziranih EU projektov. Predavanje je bilo organizirano pod okriljem ZRS Koper v sklopu projekta KRPAN v sredo, 20. decembra 2023.

 

Dogodek je bil organiziran v okviru projekta KRPAN - Krepitev Raziskovalne Podpore in Aktivnosti za Napredek na evropskih raziskovalnih projektih, ki ga sofinancirata Republika Slovenija, Ministrstvo za visoko šolstvo, znanost in inovacije ter Evropska unija – NextGenerationEU.
Mixed Weyl semimetals and dissipationless magnetization control in insulators by spin-orbit torques
Creators: name: Hanke, Jan-Philipp
name: Freimuth, Frank
name: Niu, Chengwang
name: Blügel, Stefan
name: Mokrousov, Yuriy
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Reliable and energy efficient magnetization switching by electrically-induced spin-orbit torques is of crucial technological relevance for spintronic devices implementing memory and logic functionality. Here we predict that the strength of spin-orbit torques and the related Dzyaloshinskii-Moriya interaction in topologically non-trivial magnetic insulators can exceed by far that of conventional metallic magnets. In analogy to the quantum anomalous Hall effect, we explain this extraordinary response in absence of longitudinal currents as a hallmark of magnetic monopoles in the electronic structure of systems that are interpreted most naturally within the framework of mixed Weyl semimetals. We thereby launch the effect of spin-orbit torque into the field of topology and reveal its crucial role in mediating the topological phase transitions arising due to the complex interplay between magnetization direction and momentum-space topology. The concepts presented here may be exploited to understand and utilize magneto-electric coupling phenomena in insulating ferromagnets and antiferromagnets.
description: 9 pages (7 pages + 2 pages supplementary material)
Ozadje specifičnih EU politik
Creators: name: Kolar, Jana
Publisher: name: Zenodo
Year: 2023

description: Predstavitev z naslovom Ozadje specifičnih EU politik iz enodnevnega usposabljanja s področja EU centraliziranih projektov. Predavanje je bilo organizirano pod okriljem ZRS Koper v sklopu projekta KRPAN v sredo, 20. decembra 2023.
Flux tubes in the QCD vacuum
Creators: name: Cea, Paolo
name: Cosmai, Leonardo
name: Cuteri, Francesca
name: Papa, Alessandro
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The hypothesis that the QCD vacuum can be modeled as a dual superconductor is a powerful tool to describe the distribution of the color field generated by a quark-antiquark static pair and, as such, can provide useful clues for the understanding of confinement. In this work we investigate, by lattice Monte Carlo simulations of the $SU(3)$ pure gauge theory and of (2+1)-flavor QCD with physical mass settings, some properties of the chromoelectric flux tube at zero temperature and their dependence on the physical distance between the static sources. We draw some conclusions about the validity domain of the dual superconductor picture.
description: 20 pages, 5 figures, 2 tables; added/modified some text, improved Fig.1; version to be published on Phys. Rev. D
Relative stability associated to quantised extremal Kähler metrics
Creators: name: Hashimoto, Yoshinori
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 32Q26 (Primary), 53C55 (Secondary)

description: We study algebro-geometric consequences of the quantised extremal Kähler metrics, introduced in the previous work of the author. We prove that the existence of quantised extremal metrics implies weak relative Chow polystability. As a consequence, we obtain asymptotic weak relative Chow polystability and $K$-semistability of extremal manifolds by using quantised extremal metrics; this gives an alternative proof of the results of Mabuchi and Stoppa--Székelyhidi. In proving them, we further provide an explicit local density formula for the equivariant Riemann--Roch theorem.
description: 18 pages. Section 3 previously part of arXiv:1508.02643v1, separated as an independent paper combined with new results
Non-singular spacetimes with a negative cosmological constant: II. Static solutions of the Einstein-Maxwell equations
Creators: name: Chrusciel, Piotr
name: Delay, Erwann
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We construct infinite-dimensional families of non-singular static space times, solutions of the vacuum Einstein-Maxwell equations with a negative cosmological constant. The families include an infinite-dimensional family of solutions with the usual AdS conformal structure at conformal infinity.
description: Minor rewordings. Version to appear in Letters in Mathematical Physics
Unraveling the exciton binding energy and the dielectric constant in single crystal methylammonium lead tri-iodide perovskite
Creators: name: Yang, Zhuo
name: Surrente, Alessandro
name: Galkowski, Krzysztof
name: Bruyant, Nicolas
name: Maude, Duncan K.
name: Haghighirad, Amir Abbas
name: Snaith, Henry J.
name: Plochocka, Paulina
name: Nicholas, Robin J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have accurately determined the exciton binding energy and reduced mass of single crystals of methylammonium lead tri-iodide using magneto-reflectivity at very high magnetic fields. The single crystal has excellent optical properties with a narrow line width of $\sim 3$meV for the excitonic transitions and a 2s transition which is clearly visible even at zero magnetic field. The exciton binding energy of $16 \pm 2$meV in the low temperature orthorhombic phase is almost identical to the value found in polycrystalline samples, crucially ruling out any possibility that the exciton binding energy depends on the grain size. In the room temperature tetragonal phase, an upper limit for the exciton binding energy of $12 \pm 4$ meV is estimated from the evolution of 1s-2s splitting at high magnetic field.
description: 5 pages, 4 figures
Authentic assessments for an in-person or online science course for pre-service teachers
Creators: name: Sit, Stefany
name: Zeller, Laura
Publisher: name: University of Illinois at Chicago
Year: 2023
Subjects: Curriculum and pedagogy
Education systems

description: Creating authentic science assessments that engage students in conceptual understanding and provide evidence of their learning is challenging. Student-centered instruction and assessments provide an opportunity to build student agency and foster positive student relations with science. This qualitative work showcases assessments that focus on knowledge-in-use and assessments that incorporate opportunities for and evidence of student learning. We present the design, implementation, and reception of two authentic assessments, Science Portfolios and Teaching Presentations, designed for and implemented in an interdisciplinary science content course for pre-service K-8 educators. Each of the assessments was designed to deepen student knowledge and incorporate relevance to students’ future careers as teachers. These science assessments created authentic opportunities for student learning and served as evidence of student learning. We offer our reflections about our implementation and discuss how these types of assessments could be used in other science classrooms.
Precision Measurement of Time-Reversal Symmetry Violation with Laser-Cooled Polyatomic Molecules
Creators: name: Kozyryev, Ivan
name: Hutzler, Nicholas R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Precision searches for time-reversal symmetry violating interactions in polar molecules are extremely sensitive probes of high energy physics beyond the Standard Model. To extend the reach of these probes into the PeV regime, long coherence times and large count rates are necessary. Recent advances in laser cooling of polar molecules offer one important tool -- optical trapping. However, the types of molecules that have been laser-cooled so far do not have the highly desirable combination of features for new physics searches, such as the ability to fully polarize and the existence of internal co-magnetometer states. We show that by utilizing the internal degrees of freedom present only in molecules with at least three atoms, these features can be attained simultaneously with molecules that have simple structure and are amenable to laser cooling and trapping.
Electromagnetic axial anomaly in a generalized linear sigma model
Creators: name: Fariborz, Amir H.
name: Jora, Renata
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct the electromagnetic anomaly effective term for a generalized linear sigma model with two chiral nonets, one with a quark-antiquark structure, the other one with a four quark content. We compute in the leading order of this framework the decays into two photons of six pseudoscalars: $π_0(137)$, $π_0(1300)$, $η(547)$, $η(958)$, $η(1295)$ and $η(1760)$. Our results agree well with the available experimental data.
description: 15 pages; version to be published in Phys. Rev. D
Is the vast polar structure of dwarf galaxies a serious problem for lambda cold dark matter?
Creators: name: Lipnicky, Andrew
name: Chakrabarti, Sukanya
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The dwarf galaxies around the Milky Way are distributed in a so-called vast polar structure (VPOS) that may be in conflict with Lambda CDM simulations. Here, we seek to determine if the VPOS poses a serious challenge to the Lambda cold dark matter paradigm on galactic scales. Specifically, we investigate if the VPOS remains coherent as a function of time. Using the measured Hubble Space Telescope (HST) proper motions and associated uncertainties, we integrate the orbits of the classical Milky Way satellites backwards in time and find that the structure disperses well before a dynamical time. We also examine in particular Leo I and Leo II using their most recent proper motion data, both of which have extreme kinematic properties, but these satellites do not appear to drive the polar fit that is seen at the present day. We have studied the effect of the uncertainties on the HST proper motions on the coherence of the VPOS as a function of time. We find that 8 of the 11 classical dwarfs have reliable proper motions; for these 8, the VPOS also loses significance in less than a dynamical time, indicating that the VPOS is not a dynamically stable structure. Obtaining more accurate proper motion measurements of Ursa Minor, Sculptor, and Carina would bolster these conclusions.
description: 14 pages, 6 figures, accepted for publication in Monthly Notices of the Royal Astronomical Society. Replacement: expanded discussion, grammar corrected, accepted version of text
title: Маркеры эндогенной интоксикации при гепатопатиях молочного скота
Creators: name: Кузьминова, Е.В.
name: Абрамов, А.А.
name: Семененко, М.П.
name: Алехин, Ю.Н.
name: Кощаев, А.Г.
name: Мирошниченко, П.В.
name: Осепчук, Д.В.
name: Долгов, Е.П.
name: Родин, М.И.
name: Курцевич, Л.В.
Publisher: name: ФГБНУ КНЦЗВ
Year: 2022

description: В рекомендациях рассматривается классификация заболеваний печени и методы их диагностики у крупного рогатого скота, приведены сведения, касающиеся основных закономерностей формирования эндогенной интоксикации в организме и методов ее лабораторной диагностики, представлены материалы по изменению уровня молекул средней массы в крови молочного скота в зависимости от вариантов патологии печени, даны практические рекомендации по использованию маркеров эндогенной интоксикации в качестве диагностических тестов в ветеринарной гепатологии.
Knowledge_and_Practice_of_Ethical_Consideration_fo.pdf
Creators: name: Orji, Evelyn   Ijeoma
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: This study is an assessment of knowledge and practice of ethical consideration for literacy in research among graduate students of the two Universities in Cross River State, Nigeria. The first was 214 graduate students’ who had defended proposals, while the second was 120 post field Theses. The two samples were selected through accidental technique from a population of 713 graduate students of the University of Calabar and the Cross River University of Technology who have at least defended their Thesis proposals. Results of the study indicate that only 47.31% of the students knew what ethical consideration meant in research with 83.52% of them emphasising confidentiality in their instruments. Only 33.86% and 26.17% emphasised voluntary participation and anonymity respectively. The study recommends the inclusion of ethical issues in university course outlines for research methods in education. Keywords: Ethical, consideration, safety, voluntary, participation, confidentiality, anonymity
Numerical simulations of the Cosmic Battery in accretion flows around astrophysical black holes
Creators: name: Contopoulos, Ioannis
name: Nathanail, Antonios
name: Sadowski, Alexander
name: Kazanas, Demosthenes
name: Narayan, Ramesh
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We implement the KORAL code to perform two sets of very long general relativistic radiation magnetohydrodynamic simulations of an axisymmetric optically thin magnetized flow around a non-rotating black hole: one with a new term in the electromagnetic field tensor due to the radiation pressure felt by the plasma electrons on the comoving frame of the electron-proton plasma, and one without. The source of the radiation is the accretion flow itself. Without the new term, the system evolves to a standard accretion flow due to the development of the magneto-rotational instability (MRI). With the new term, however, the system eventually evolves to a magnetically arrested state (MAD) in which a large scale jet-like magnetic field threads the black hole horizon. Our results confirm the secular action of the Cosmic Battery in accretion flows around astrophysical black holes.
description: 7 pages, 4 figures, submitted to Monthly Notices
Power-law out of time order correlation functions in the SYK model
Creators: name: Bagrets, Dmitry
name: Altland, Alexander
name: Kamenev, Alex
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We evaluate the finite temperature partition sum and correlation functions of the Sachdev-Ye-Kitaev (SYK) model. Starting from a recently proposed mapping of the SYK model onto Liouville quantum mechanics, we obtain our results by exact integration over conformal Goldstone modes reparameterizing physical time. Perhaps, the least expected result of our analysis is that at time scales proportional to the number of particles the out of time order correlation function crosses over from a regime of exponential decay to a universal $t^{-6}$ power-law behavior.
description: 25 pages, 3 figures, minor changes, version accepted for publication
Pulsar Timing and its Application for Navigation and Gravitational Wave Detection
Creators: name: Becker, Werner
name: Kramer, Michael
name: Sesana, Alberto
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Pulsars are natural cosmic clocks. On long timescales they rival the precision of terrestrial atomic clocks. Using a technique called pulsar timing, the exact measurement of pulse arrival times allows a number of applications, ranging from testing theories of gravity to detecting gravitational waves. Also an external reference system suitable for autonomous space navigation can be defined by pulsars, using them as natural navigation beacons, not unlike the use of GPS satellites for navigation on Earth. By comparing pulse arrival times measured on-board a spacecraft with predicted pulse arrivals at a reference location (e.g. the solar system barycenter), the spacecraft position can be determined autonomously and with high accuracy everywhere in the solar system and beyond. We describe the unique properties of pulsars that suggest that such a navigation system will certainly have its application in future astronautics. We also describe the on-going experiments to use the clock-like nature of pulsars to "construct" a galactic-sized gravitational wave detector for low-frequency (f_GW ~1E-9 - 1E-7 Hz) gravitational waves. We present the current status and provide an outlook for the future.
description: 30 pages, 9 figures. To appear in Vol 63: High Performance Clocks, Springer Space Science Reviews
title: Multipath Flow Metering of High-Velocity Gas Using Ultrasonic Phased-Arrays
Creators: name: Haugwitz, Christoph
name: Hartmann, Claas
name: Allevato, Gianni
name: Rutsch, Matthias
name: Hinrichs, Jan
name: Brötz, Johannes
name: Bothe, Dieter
name: Pelz, Peter F.
name: Kupnik, Mario
Publisher: name: IEEE
Year: 2024

description: In this work we combine a multipath ultrasonic gas flow meter (UFM) with an ultrasonic air-coupled phased-array. This allows complementing the advantages of a multipath UFM, i.e. higher accuracy and more robustness to irregular flow, with the extended velocity measuring range due to sound drift compensation via a phased-array. We created a 3D-printed flow meter consisting of an 8×8λ/2 phased-array for transmission and 14 individual receivers for seven upstream and seven downstream sound paths. Measurements were conducted in a test rig with a maximum gas flow rates of 8.3 m 3 s ⁻¹ (107 ms ⁻¹ ). A differential pressure nozzle was used as reference sensor. Three configurations were compared: Parallel sound paths with a single transmitter; parallel sound paths with the phased-array as transmitter; and fan-shaped sound paths with the phased-array as transmitter. The signal-to-noise ratio (SNR) and deviation of measured flow were used as comparison criteria. In addition, we measured the optimum steering angles of the phased-array required to compensate the sound drift effect. Using the phased-array with the sound drift effect compensation enabled and disabled, the SNR increases by 10.6 dB and 4.95 dB, respectively, compared to the single transmitter setup at 83 m s ⁻¹ . Furthermore, the phased-array with compensation active, extends the velocity measuring range by 29%, from 83 ms ⁻¹ to 107 m s ⁻¹ , while maintaining a similar standard deviation of the flow measured. Besides demonstrating that a phased-array in a gas flow meter significantly extends the measurement range, our setup qualifies as versatile research platform for designing future high-velocity gas flow meters.
The square lattice Ising model on the rectangle II: Finite-size scaling limit
Creators: name: Hucht, Alfred
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences
subject: 82B20, 82B23

description: Based on the results published recently [J. Phys. A: Math. Theor. 50, 065201 (2017)], the universal finite-size contributions to the free energy of the square lattice Ising model on the $L\times M$ rectangle, with open boundary conditions in both directions, are calculated exactly in the finite-size scaling limit $L,M\to\infty$, $T\to T_\mathrm{c}$, with fixed temperature scaling variable $x\propto(T/T_\mathrm{c}-1)M$ and fixed aspect ratio $ρ\propto L/M$. We derive exponentially fast converging series for the related Casimir potential and Casimir force scaling functions. At the critical point $T=T_\mathrm{c}$ we confirm predictions from conformal field theory by Cardy & Peschel [Nucl. Phys. B 300, 377 (1988)] and by Kleban & Vassileva [J. Phys. A: Math. Gen. 24, 3407 (1991)]. The presence of corners and the related corner free energy has dramatic impact on the Casimir scaling functions and leads to a logarithmic divergence of the Casimir potential scaling function at criticality.
description: 31 pages, 6 figures, second part of arXiv:1609.01963, some text and references added, several small errors fixed, figure 5 changed, accepted
Response to RFI: National Nanotechnology Initiative Strategic Planning
Creators: name: Wong, H.-S.Philip
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: subject: Semiconductors
subject: Microelectronics
subject: National Nanotechnology Initiative (U.S.)

description: We must accelerate the pace of exploration and translation, broaden the set of researchers, and equip them with capability to do research across the full spectrum of nanoscience enabled technology, from nanomaterials to nanoscale devices, circuit and system design, to system architectures that utilize unique nanoscale and quantum phenomena. There is a bright future in materials, devices, and system integration that require end-to-end co-design and innovation. Isolated programs staying in traditional silos will be inadequate. That is where large-scale efforts, best coordinated across multiple federal agencies, can make a substantial difference. The technology edge of the US is to stay at the forefront, ahead of our competition.
Darboux charts around holomorphic Legendrian curves and applications
Creators: name: Alarcon, Antonio
name: Forstneric, Franc
Publisher: name: arXiv
Year: 2017
Subjects: subject: Complex Variables (math.CV)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53D10, 32E30, 32H02, 37J55

description: In this paper, we find a holomorphic Darboux chart around any immersed noncompact holomorphic Legendrian curve in a complex contact manifold $(X,ξ)$. By using such a chart, we show that every holomorphic Legendrian immersion $R\to X$ from an open Riemann surface can be approximated on relatively compact subsets by holomorphic Legendrian embeddings, and every holomorphic Legendrian immersion $M\to X$ from a compact bordered Riemann surface is a uniform limit of topological embeddings $M\hookrightarrow X$ such that $\mathring M\hookrightarrow X$ is a complete holomorphic Legendrian embedding. We also establish a contact neighborhood theorem for isotropic Stein submanifolds, and we find a holomorphic Darboux chart around any contractible isotropic Stein submanifolds in an arbitrary complex contact manifold.
description: Internat. Math. Res. Not. (IMRN), to appear
Composition and patterns of taxa assemblages in the Western Channel assessed by 18S sequencing, microscopy and flow cytometry supplementary files
Creators: name: Stern, Rowena
name: Picard, Kathryn
name: Clarke, Jessica
name: Walker, Charlotte
name: Martins, Claudia
name: Marshall, Clare
name: Amorim, Ana
name: Woodward, Malcolm
name: Widdicombe, Claire
name: Tarran, Glen
name: Edwards, Martin
Publisher: name: Zenodo
Year: 2022
Subjects: Phytoplankton
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WCO station L4
CPR
Flow cytometry
qRT-PCR
WaMS

description: Supplementary files for the manuscript entitled composition and patterns of taxa assemblages in the Western Channel assessed by 18S sequencing, microscopy and flow cytometry supplementary files containing genetic, flow cytometry data from automated sampling device WaMS attached to a Continuous Plankton Recorder (CPR) device in the Western channel (English Channel). Additionally appendices relating to methodology for nutrient collection from Western Channel Observatory (WCO) station L4 and qRT-PCR (quantitaive real-time PCR)
Using the IBM analog in-memory hardware acceleration kit for neural network training and inference
Creators: name: Manuel Le Gallo
name: Corey Lammie
name: Julian Büchel
name: Fabio Carta
name: Omobayode Fagbohungbe
name: Charles Mackin
name: Hsinyu Tsai
name: Vijay Narayanan
name: Abu Sebastian
name: Kaoutar El Maghraoui
name: Malte J. Rasch
Publisher: name: Zenodo
Year: 2024

description: Analog In-Memory Computing (AIMC) is a promising approach to reduce the latency and energy consumption of Deep Neural Network (DNN) inference and training. However, the noisy and non-linear device characteristics and the non-ideal peripheral circuitry in AIMC chips require adapting DNNs to be deployed on such hardware to achieve equivalent accuracy to digital computing. In this Tutorial, we provide a deep dive into how such adaptations can be achieved and evaluated using the recently released IBM Analog Hardware Acceleration Kit (AIHWKit), freely available at https://github.com/IBM/aihwkit. AIHWKit is a Python library that simulates inference and training of DNNs using AIMC. We present an in-depth description of the AIHWKit design, functionality, and best practices to properly perform inference and training. We also present an overview of the Analog AI Cloud Composer, a platform that provides the benefits of using the AIHWKit simulation in a fully managed cloud setting along with physical AIMC hardware access, freely available at https://aihw-composer.draco.res.ibm.com. Finally, we show examples of how users can expand and customize AIHWKit for their own needs. This Tutorial is accompanied by comprehensive Jupyter Notebook code examples that can be run using AIHWKit, which can be downloaded from https://github.com/IBM/aihwkit/tree/master/notebooks/tutorial.

Supplementary Material: https://zenodo.org/records/13465504
АКТИВНЫЙ ОБРАЗ ЖИЗНИ В НАСТОЯЩЕМ –  ВКЛАД В ЗДОРОВЬЕ В  БУДУЩЕМ
Creators: name: Джалилова, Г.А.
name: Расулова, Н.Ф.
name: Оташехов, З.И.
Publisher: name: Zenodo
Year: 2024

description: Все люди когда-либо задумываются о том, что время неумолимо движется вперед. Нам не под силу даже ненадолго приостановить его течение, и мы с тоской задумываемся о далеком, но все же неизбежном будущем. В современном мире пожилые люди, в большинстве своем, имеют плохое самочувствие, часто болеют, теряют вкус к жизни. Смотря на них, сердце охватывает сочувствие и сковывает страх. Вопрос возникает сам собой: неужели меня тоже ждет такое будущее?  К сожалению, никто не будет вечно молод, время постепенно возьмет свое.
Spin polarization and exchange-correlation effects in transport properties of two-dimensional electron systems in silicon
Creators: name: Dolgopolov, V. T.
name: Shashkin, A. A.
name: Kravchenko, S. V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show that the parallel magnetic field-induced increase in the critical electron density for the Anderson transition in a strongly interacting two-dimensional electron system is caused by the effects of exchange and correlations. If the transition occurs when electron spins are only partially polarized, additional increase in the magnetic field is necessary to achieve the full spin polarization in the insulating state due to the exchange effects.
description: As published
Essential spectrum of non-self-adjoint singular matrix differential operators
Creators: name: Ibrogimov, Orif O.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 47A10, 34L05, 47A55, 76E99

description: The purpose of this paper is to study the essential spectrum of non-self-adjoint singular matrix differential operators in the Hilbert space $L^2(\mathbb{R})\oplus L^2(\mathbb{R})$ induced by matrix differential expressions of the form \begin{align}\label{abstract:mdo} \left(\begin{array}{cc} τ_{11}(\,\cdot\,,D) & τ_{12}(\,\cdot\,,D)\\[3.5ex] τ_{21}(\,\cdot\,,D) & τ_{22}(\,\cdot\,,D) \end{array}\right), \end{align} where $τ_{11}$, $τ_{12}$, $τ_{21}$, $τ_{22}$ are respectively $m$-th, $n$-th, $k$-th and 0 order ordinary differential expressions with $m=n+k$ being even. Under suitable assumptions on their coefficients, we establish an analytic description of the essential spectrum. It turns out that the points of the essential spectrum either have a local origin, which can be traced to points where the ellipticity in the sense of Douglis and Nirenberg breaks down, or they are caused by singularity at infinity.
description: 25 pages, 1 figure, a few typos corrected
A general extension theorem for cohomology classes on non reduced analytic spaces
Creators: name: Cao, Junyan
name: Demailly, Jean-Pierre
name: Matsumura, Shin-Ichi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: The main purpose of this paper is to generalize the celebrated L${}^2$ extension theorem of Ohsawa-Takegoshi in several directions : the holomorphic sections to extend are taken in a possibly singular hermitian line bundle, the subvariety from which the extension is performed may be non reduced, the ambient manifold is K{ä}hler and holomorphically convex, but not necessarily compact.
description: To appear in Science China Mathematics SCM-2017-0090 in memory of professor Lu QiKeng
Current LHC Constraints on Minimal Universal Extra Dimensions
Creators: name: Deutschmann, Nicolas
name: Flacke, Thomas
name: Kim, Jong Soo
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this letter, we present LHC limits on the minimal universal extra dimension (MUED) model from LHC Run 1 data and current limits from searches of the ongoing Run 2. Typical collider signals of the Kaluza-Klein (KK) states mimic generic degenerate supersymmetry (SUSY) missing transverse momentum signatures since the excited KK particles cascade decay to jets, leptons and the lightest KK particle which is stable due to KK parity and thus evades detection. We test the parameter space against a large number of supersymmetry based missing energy searches implemented in the public code CheckMATE. We demonstrate the complementarity of employing various searches which target a large number of final state signatures, and we derive the most up to date limits on the MUED parameter space from 13 TeV SUSY searches.
description: 8 pages, 3 figures, 2 tables; v2: typos fixed, references added; matches version published in Phys.Lett.B
Magnetorotational Collapse of Supermassive Stars: Black Hole Formation, Gravitational Waves and Jets
Creators: name: Sun, Lunan
name: Paschalidis, Vasileios
name: Ruiz, Milton
name: Shapiro, Stuart L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We perform MHD simulations in full GR of uniformly rotating stars that are marginally unstable to collapse. Our simulations model the direct collapse of supermassive stars (SMSs) to seed black holes (BHs) that can grow to become the supermassive BHs at the centers of quasars and AGNs. They also crudely model the collapse of massive Pop III stars to BHs, which could power a fraction of distant, long gamma-ray bursts (GRBs). The initial stellar models we adopt are $Γ= 4/3$ polytropes seeded with a dynamically unimportant dipole magnetic field (B field). We treat initial B-field configurations either confined to the stellar interior or extending out from the interior into the stellar exterior. The BH formed following collapse has mass $M_{BH} \simeq 0.9M$ (where $M$ is the mass of the initial star) and spin $a_{BH}/M_{BH}\simeq 0.7$. A massive, hot, magnetized torus surrounds the remnant BH. At $Δt\sim 400-550M\approx 2000-2700(M/10^6M_\odot)$s following the gravitational wave (GW) peak amplitude, an incipient jet is launched. The disk lifetime is $Δt\sim 10^5(M/10^6M_\odot)$s, and the jet luminosity is $L_{EM}\sim 10^{51-52}$ ergs/s. If $\gtrsim 1-10\%$ of this power is converted into gamma rays, SWIFT and FERMI could potentially detect these events out to large redshifts $z\sim 20$. Thus, SMSs could be sources of ultra-long GRBs and massive Pop III stars could be the progenitors that power a fraction of the long GRBs observed at redshift $z \sim 5-8$. GWs are copiously emitted during the collapse, and peak at $\sim 15(10^6 M_{\odot}/M)\rm mHz$ ($\sim 0.15(10^4 M_{\odot}/M)\rm Hz$), i.e., in the LISA (DECIGO/BBO) band; optimally oriented SMSs could be detectable by LISA (DECIGO/BBO) at $z \lesssim 3$ ($z \lesssim 11$). Hence $10^4 M_{\odot}$ SMSs collapsing at $z\sim 10$ are promising multimessenger sources of coincident gravitational and electromagnetic waves.
description: 14 pages, 9 figures, replaced with the published version
Charm Production and QCD Analysis at HERA and LHC
Creators: name: Zenaiev, Oleksandr
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This review is devoted to the study of charm production in ep and pp collisions. The total set of measurements obtained by the two collaborations H1 and ZEUS from HERA and their combination is outlined, as well as complementary data obtained by the LHCb collaboration at the LHC. After fitting the parton distribution functions the charm production cross sections are predicted within perturbative QCD at next-to-leading order using the fixed-flavour-number scheme. Agreement with the data is found. The combined HERA charm data are sensitive to the $c$-quark mass and enabled its accurate determination. The predictions crucially depend upon the knowledge of the gluon distribution function. It is shown that the shape of the gluon distribution based on the HERA data is considerably improved by adding the measurements from LHCb and applicable down to values x of about 10^{-6}, where x is the proton momentum fraction carried by a parton.
description: 105 pages, 108 figures, 22 tables; final version
Can CF(3)-functionalized La@C(60) be isolated experimentally and become superconducting?
Creators: name: Guan, Jie
name: Tomanek, David
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Superconducting behavior even under harsh ambient conditions is expected to occur in La@C(60) if it could be isolated from the primary metallofullerene soot when functionalized by CF(3) radicals. We use ab initio density functional theory calculations to compare the stability and electronic structure of C(60) and the La@C(60) endohedral metallofullerene to their counterparts functionalized by CF(3). We found that CF(3) radicals favor binding to C(60) and La@C(60), and have identified the most stable isomers. Structures with an even number m of radicals are energetically preferred for C(60) and structures with odd m for La@C(60) due to the extra charge on the fullerene. This is consistent with a wide HOMO-LUMO gap in La@C(60)(CF(3))(m) with odd m, causing extra stabilization in the closed-shell electronic configuration. CF(3) radicals are both stabilizing agents and molecular separators in a metallic crystal, which could increase the critical temperature for superconductivity.
description: Nano Letters
D5.11 - Human Biomonitoring in risk assessment: 4th set of examples on the use of HBM in risk assessments of HBM4EU priority chemicals
Creators: name: Mahiout, Selma
name: Santonen, Tiina
Publisher: name: Zenodo
Year: 2022

description: The aim of this work was to demonstrate how human biomonitoring (HBM) data can be included in different risk or health impact assessment strategies. To achieve this, risk assessment (RA) was performed for the first and second lists of substances prioritised in HBM4EU: acrylamide, aprotic solvents, arsenic, bisphenols, diisocyanates, flame retardants, mercury, mycotoxins, pesticides, PAHs, PFASs and UV filters. In addition, environmental burden of disease (EBoD) calculations were performed for lead. The overall result of the work performed during the whole project is that HBM data can be successfully used in RA, and its inclusion generally benefits RA, providing more confidence to it. A tiered approach can be applied, as described earlier in the HBM4EU deliverable report D5.5. When performing RA based on HBM data, it is important to consider the uncertainties involved. However,
 the main uncertainties are often not related to the use of HBM data itself, but rather to the dose-response and toxicological data used, making them universal to RA in general. Inclusion of HBM data may often in fact help reduce uncertainty in RA, especially if they are used to verify exposure assessment made by other methods, such as modelling. However, one of the major challenges for the inclusion of HBM into RA is the often-limited data available on toxicokinetics. In addition, in some cases, there is an urgent need for more specific biomarkers or more sensitive analytic methods than currently available. HBM is an important tool in the assessment of exposure and chemical risks, as it gives information on populations’ and individuals’ total exposure from all sources and by different exposure routes. When performed on a regular basis, it may also give insight into time-trends of exposure, and therefore provide information on the effectiveness of regulatory risk management measures already in place. Other valuable contributions that RA using HBM data can provide are postmarketing surveillance, identification of emerging concerns, hot spot monitoring and raising awareness. Overall, it is therefore essential that up-to-date, high-quality HBM data are available for RA concerning both general and occupational populations. While the RA/EBoD work presented here is not intended to have direct regulatory implications, the results can be useful for raising awareness regarding possibly needed policy actions, since newly generated HBM data, reflecting current exposure of the EU population, has been used in many of the RA/EBoDs.

description: {"references": ["Ares(2022)4267188 - 09/06/2022"]}