cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optical emission spectroscopy of non-equilibrium microwave plasma torch sustained by focused radiation of gyrotron at 24 GHz
Creators: name: Sintsov, Sergey
name: Tabata, Kuniyoshi
name: Mansfeld, Dmitry
name: Vodopyanov, Alexander
name: Komurasaki, Kimiya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The electron and gas temperature of non-equilibrium argon plasma torch sustained by a focused 24 GHz microwave beam in the external atmosphere of air was measured by optical emission spectroscopy. The excitation temperature of argon atoms was found about 5000 K, while the vibrational and rotational temperatures of ambient nitrogen molecules were respectively estimated at 3000 K and 2000 K. The effective mixing of the external gas atmosphere into the plasma torch is experimentally demonstrated. The vibrational and rotational temperatures of nitrogen molecules slightly increased with the distance from the nozzle exit. Experimental results demonstrate that microwave discharge at atmospheric pressure may be relevant for the decomposition of highly stable molecules, e.g. carbon dioxide, in non-equilibrium conditions.
Bubble dynamics for broadband microrheology of complex fluids
Creators: name: Saint-Michel, Brice
name: Garbin, Valeria
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Bubbles in complex fluids are often desirable, and sometimes simply inevitable, in the processing of formulated products. Bubbles can rise by buoyancy, grow or dissolve by mass transfer, and readily respond to changes in pressure, thereby applying a deformation to the surrounding complex fluid. The deformation field around a stationary, spherical bubble undergoing a change in radius is simple and localised, thus making it suitable for rheological measurements. This article reviews emerging approaches to extract information on the rheology of complex fluids by analysing bubble dynamics. The focus is on three phenomena: changes in radius by mass transfer, harmonic oscillations driven by an acoustic wave, and bubble collapse. These phenomena cover a broad range of deformation frequencies, from $10^{-4}$ to $10^6$ Hz, thus paving the way to broadband microrheology using bubbles as active probes. The outstanding challenges that need to be overcome to achieve a robust technique are also discussed.
description: Accepted to Curr. Opin. Colloid Interf Sci, minor modifications from v1
Proof of absence of local conserved quantities in the mixed-field Ising chain
Creators: name: Chiba, Yuuya
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Absence of local conserved quantities is often required, such as for thermalization or for the validity of response theory. Although many studies have discussed whether thermalization occurs in the Ising chain with longitudinal and transverse fields, rigorous results on local conserved quantities of this model have still been lacking. Here, we rigorously prove that, if all coupling constants are nonzero, this model has no conserved quantity spanned by local operators with support size up to half of the system size other than a trivial one, i.e., a linear combination of the Hamiltonian and the identity. The proof is given not only for the periodic boundary condition but also for the open boundary condition. We also discuss relation to the integrability of the model where the longitudinal field is set to zero. Our results provide the second example of spin models whose nonintegrability is rigorously proved.
description: 17 pages, 1 table
Additional file 3 of Generation of transgene-free PDS mutants in potato by Agrobacterium-mediated transformation
Creators: name: Bánfalvi, Zsófia
name: Csákvári, Edina
name: Villányi, Vanda
name: Kondrák, Mihály
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Plant Biology

description: Additional file 3: Figure S1. Detection and expression of Cas9 in PDS mutants obtained after continuous Km selection. Figure S2. Detection of the lack of transgenes in PDS mutants obtained after 3 days of Km selection.
Additional file 1 of Reliability assessment of the ‘field audit for children’s active transport routes to school’ (FACTS) tool
Creators: name: Vasey, Thomas V.
name: Dale, Michael J.
name: Carroll, Suzanne J.
Publisher: name: figshare
Year: 2024
Subjects: subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Supplementary Material 1
Additional file 2 of A randomised controlled crossover trial investigating the short-term effects of different types of vegetables on vascular and metabolic function in middle-aged and older adults with mildly elevated blood pressure: the VEgetableS for vaScular hEaLth (VESSEL) study protocol
Creators: name: Connolly, Emma L.
name: Bondonno, Catherine P.
name: Sim, Marc
name: Radavelli-Bagatini, Simone
name: Croft, Kevin D.
name: Boyce, Mary C.
name: James, Anthony P.
name: Clark, Karin
name: Reindolf Anokye
name: Bondonno, Nicola P.
name: Woodman, Richard J.
name: Devine, Amanda
name: Gan, Seng Khee
name: Schultz, Carl J.
name: Mithen, Richard F.
name: Lewis, Joshua R.
name: Hodgson, Jonathan M.
name: Blekkenhorst, Lauren C.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 2. Participant information and consent form.
Additional file 2 of Unraveling the brain dynamics of Depersonalization-Derealization Disorder: a dynamic functional network connectivity analysis
Creators: name: Zheng, Sisi
name: Zhang, Francis Xiatian
name: Shum, Hubert P. H.
name: Zhang, Haozheng
name: Song, Nan
name: Song, Mingkang
name: Jia, Hongxiao
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Cell Biology
Neuroscience
Biological Sciences not elsewhere classified
Science Policy
Mental Health

description: Supplementary Material 2.
Nucleon Form Factors from Generalized Parton Distributions
Creators: name: Guidal, M.
name: Polyakov, M. V.
name: Radyushkin, A. V.
name: Vanderhaeghen, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the links between Generalized Parton Distributions (GPDs) and elastic nucleon form factors. These links, in the form of sum rules, represent powerful constraints on parametrizations of GPDs. A Regge parametrization for GPDs at small momentum transfer, is extended to the large momentum transfer region and it is found to describe the basic features of proton and neutron electromagnetic form factor data. This parametrization is used to estimate the quark contribution to the nucleon spin.
description: 18 pages, 5 figures, replaced with published version
Additional file 1 of Enormous headward and gully erosion in a floodplain area reclaimed for open-cast lignite mining during the July 2021 flood in the Inde River valley (Western Germany)
Creators: name: Keßels, Johannes
name: Wolf, Stefanie
name: Römer, Wolfgang
name: Dörwald, Lukas
name: Schulte, Philipp
name: Lehmkuhl, Frank
Publisher: name: figshare
Year: 2024
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Additional file 1.
Lithium in Very Metal-poor Dwarf Stars - Problems for Standard Big Bang Nucleosynthesis?
Creators: name: Lambert, David L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The standard model of primordial nucleosynthesis by the Big Bang as selected by the WMAP-based estimate of the baryon density ($Ω_bh^2$) predicts an abundance of $^7$Li that is a factor of three greater than the generally reported abundance for stars on the Spite plateau, and an abundance of $^6$Li that is about a thousand times less than is found for some stars on the plateau. This review discusses and examines these two discrepancies. They can likely be resolved without major surgery on the standard model of the Big Bang. In particular, stars on the Spite plateau may have depleted their surface lithium abundance over their long lifetime from the WMAP-based predicted abundances down to presently observed abundances, and synthesis of $^6$Li (and $^7$Li) via $α+ α$ fusion reactions may have occurred in the early Galaxy. Yet, there remain fascinating ways in which to remove the two discrepancies involving aspects of a new cosmology, particularly through the introduction of exotic particles.
description: 18 pages, 5 figures, accepted for publication in joint proceedings for Mitchell Symposium on Observational Cosmology and Strings and Cosmology Conference
Ação Coletiva e Delegação de Poder no Semiárido Nordestino: papel de lideranças locais e assessores externos numa comunidade rural
Creators: name: Alves, Maria Odete
name: Bursztyn, Marcel
name: Chacon, Suely Salgueiro
name: Alves, Maria Odete
name: Bursztyn, Marcel
name: Chacon, Suely Salgueiro
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Collective action
subject: Power delegation
subject: Family farmers
subject: Brazilian semi-arid.

description: This paper examines the collective experience developed since the mid 1980 in a rural community of Northeastern semi-arid region - Lagoa dos Cavalos (Russas, Ceará). The land tenure pattern is based on fragmentation by inheritance, and its formal registration enables a peculiar form of organization that ensures the population certain autonomy in collective decisions on local development. The goal of this article is to check who has power and responsibility in the process of collective action coordination, the profile and the role of these actors. The method is based on qualitative research, combining the use of witness statements, documentary and bibliographical sources. Intentional non-probability sampling was used for the definition of the actors to be interviewed. The conclusion points that power and responsibility are delegated to two types of local leaders, who hold the recognition and legitimacy to meet the demands inherent in the work of collective activities coordination or for mediation between the location, the external advisors and the world, keeping on autonomy. The external advisors provide technical and political support, and facilitate the access to financial resources. Both local and external advisors leaders play an important role in local development, but are dependent on the local organization that has created mechanisms to build cooperation and coordination of action of those involved.
Strictly Non-Adiabatic Quantum Control of the Acetylene Dication Using an Infrared Field
Creators: name: Liekhus-Schmaltz, Chelsea
name: Zhu, Xiaolei
name: McCracken, Gregory A.
name: Cryan, James P.
name: Martinez, Todd
name: Bucksbaum, Philip H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate the existence of a strictly non-adiabatic control pathway in deprotonation of the acetylene dication. This pathway is identified experimentally by measuring a kinetic energy shift in an ion coincidence experiment. We use a TDSE simulation to identify which properties most strongly affect our control. We find that resonant control around conical intersections is limited by the speed of non-adiabatic dynamics.
description: 7 pages, 3 figures
A Demanda por Vinho no Brasil: elasticidades no consumo das famílias e determinantes da importação
Creators: name: Almeida, Alexandre Nunes
name: Bragagnolo, Cassiano
name: Chagas, André Luis Squarize
name: Almeida, Alexandre Nunes
name: Bragagnolo, Cassiano
name: Chagas, André Luis Squarize
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Wine market
subject: Income
subject: Consumption
subject: Demand
subject: Exchange rate.

description: The aim of this study is to analyze the Brazilian market of wine and its recent changes on the demand. One of the hypotheses that guides this work is that the recent increase in household income in real terms and the appreciation of Real against dollar quotes, that happened between 2002 until 2011, have contributed to a shift in the consumption profile of main alcoholic beverages in Brazil. To corroborate these hypotheses, AIDS and VAR Models were estimated. It was observed that the demand for wine is less price elastic than beer but not compared to other alcoholic beverages. Changes in income appear to have almost the same impact on wine and beer consumption than other drinks, less elastic. Regarding the supply of imported wines in the domestic market, the Structural Vector Autoregressive (VAR) showed the variance of the amount of the imported wine could be explained, in part, by income and the price of the product, while exchange rate presented less importance. Moreover, part of the quantity variance cannot be explained by these variables.
Spatial and temporal development of incipient dunes
Creators: name: Gadal, Cyril
name: Narteau, Clément
name: Ewing, Ryan C.
name: Gunn, Andrew
name: Jerolmack, Douglas
name: Andreotti, Bruno
name: Claudin, Philippe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Geophysics (physics.geo-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In zones of loose sand, wind-blown sand dunes emerge due the linear instability of a flat sedimentary bed. This instability has been studied in experiments and numerical models but rarely in the field, due to the large time and length scales involved. We examine dune formation at the upwind margin of the White Sands Dune Field in New Mexico (USA), using 4 years of lidar topographic data to follow the spatial and temporal development of incipient dunes. Data quantify dune wavelength, growth rate, and propagation velocity and also the characteristic length scale associated with the growth process. We show that all these measurements are in quantitative agreement with predictions from linear stability analysis. This validation makes it possible to use the theory to reliably interpret dune-pattern characteristics and provide quantitative constraints on associated wind regimes and sediment properties, where direct local measurements are not available or feasible.
description: 15 pages, 3 figures
Perturbation of the Surface of Amorphous Solid Water by the Adsorption of Polycyclic Aromatic Hydrocarbons
Creators: name: Michoulier, E
name: Toubin, C
name: Simon, A
name: Mascetti, J
name: Aupetit, C
name: Noble, J A
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: This joint theoretical and experimental study establishes that the adsorption of polycyclic aromatic hydrocarbons (PAHs) onto the amorphous ice surface provokes a broadening and redshift of the "dangling" OH (dOH) ice spectral feature, the redshift increasing with PAH size up to $\sim$ 85~cm$^{-1}$. It also reveals that, in certain interaction configurations, adsorption induces substantial reorganisation of the hydrogen-bonding network at the ice surface. Comparison with experiments validates the novel theoretical methodology relying on the density functional based tight binding approach, which offers a compromise between system size and accuracy enabling a wide sampling of surface structures. Applied in an astrophysical context, this study suggests that widening of the dOH feature by adsorption of aromatic molecules could explain its absence heretofore in observational ice spectra, offering hope that future missions with higher sensitivity will verify its presence or absence in dense regions.
description: Published in J. Phys. Chem. C
Additional file 2 of Generation of transgene-free PDS mutants in potato by Agrobacterium-mediated transformation
Creators: name: Bánfalvi, Zsófia
name: Csákvári, Edina
name: Villányi, Vanda
name: Kondrák, Mihály
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Plant Biology

description: Additional file 2 Figure S1. Multiple sequence alignment of PDS fragments cloned from the potato cultivar ’Désirée’. Figure S2. PDS.12g. Figure S3. PDS.5m. Figure S4. PDS.3w. Figure S5. PDS.11w. Figure S6. PDS.28g. Figure S7. PDS.34g. Figure S8. PDS.73g. Figure S9. PDS.65g. Figure S10. PDS.48g. Figure S11. PDS.9m. Figure S12. PDS.10m. Figure S13. PDS.10g. Figure S14. PDS.1g. Figure S15. PDS.33g. Figure S16. PDS.5g.
Spinal cord tissue changes due to residual compression in a novel rat contusion model
Creators: name: Sjovold, Simon Gerhard
Publisher: name: University of British Columbia
Year: 2010

description: Residual compression can potentially lead to the exacerbation of the initial spinal cord trauma and is currently corrected by performing surgical decompression. Decompression is one of the few treatment options currently available to clinicians, but until direct beneficial effects are proven, its use will remain controversial. Many investigators have developed experimental models to evaluate the effects of maintained compression; however replication of the clinical injury incorporating a primary contusion followed by residual compression of the spinal cord has not been a primary focus. The objectives of this thesis were to i) establish injury protocols of graded residual compression following a reproducible contusion injury, ii) develop a clamp to rigidly support the thoracic vertebrae, iii) develop a method to monitor the long-term microvascular blood flow of the spinal cord, and iv) determine the influence of 40% and 90% residual spinal cord compression on the extent and progression of neurological damage following a moderate contusive spinal cord injury. The initial contusion produced considerable disruption of the localized tissue, preventing it from supporting further compression. As a result, the load relaxation of the spinal cord was rapid for both levels of residual compression. Contusion did not adversely affect the microvascular blood flow, but residual compression significantly increased the blood flow one level caudal to the injury epicentre. Total haemorrhage volume was similar for contusion and both levels of residual compression although the extent was greater following 90% residual compression. High levels (90%) of residual compression resulted in an extension of the gray and white matter damage beyond that of the initial contusion injury. Low levels (40%) of residual compression did not appear to increase the cellular damage in the white and gray matter, at least in the acute stage (initial 3 hours). Although this thesis did not evaluate the blood flow in all regions of the spinal cord and only compared two levels of residual compression for a contusion injury of a single magnitude, we have produced compelling evidence that residual compression does not entirely restrict the blood Abstract flow through the cord. distant to the injury. As well, the relative magnitude of the residual compression, in relation to the initial contusion injury, is an important factor in determining the resulting level of neurological injury.
Chiral Gravitational Waves Produced in a Helical Magnetogenesis Model
Creators: name: Okano, So
name: Fujita, Tomohiro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the gravitational wave production induced by the primordial magnetic fields in a parity-violating magnetogenesis model. It is shown that the gravitational waves detectable by LISA, DECIGO or BBO and the magnetic fields strong enough to explain the blazar observation can be simultaneously produced. The magnetic fields and the gravitational waves have the same chirality and their amplitudes are related, which may also be tested by future observations.
description: 21 pages, 7 figures
Constrained Simulations of the Magnetic Field in the Local Universe and the Propagation of UHECRs
Creators: name: Dolag, Klaus
name: Grasso, Dario
name: Springel, Volker
name: Tkachev, Igor
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use simulations of LSS formation to study the build-up of magnetic fields (MFs) in the ICM. Our basic assumption is that cosmological MFs grow in a MHD amplification process driven by structure formation out of a seed MF present at high z. Our LCDM initial conditions for the density fluctuations have been statistically constrained by the observed galaxies, based on the IRAS 1.2-Jy all-sky redshift survey. As a result, prominent galaxy clusters in our simulation coincide closely with their real counterparts. We find excellent agreement between RMs of our simulated clusters and observational data. The improved resolution compared to previous work also allows us to study the MF in large-scale filaments, sheets and voids. By tracing the propagation of UHE protons in the simulated MF we construct full-sky maps of expected deflection angles of protons with arrival energies E=1e20eV and 4e19eV, respectively. Strong deflections are only produced if UHE protons cross clusters, however covering only a small area on the sky. Multiple crossings of sheets and filaments over larger distances may give rise to noticeable deflections, depending on the model adopted for the magnetic seed field. Based on our results we argue that over a large fraction of the sky the deflections are likely to remain smaller than the present experimental angular sensitivity. Therefore, we conclude that forthcoming air shower experiments should be able to locate sources of UHE protons and shed more light on the nature of cosmological MFs.
description: 3revised version, JCAP, accepted
title: Reorganizing the cortical actin skeleton using micropatterning
Creators: name: Koffler, Angela
Publisher: name: TU Wien
Year: 2017
Subjects: subject: actin
subject: micropatterning
subject: plasma membrane
subject: diffusion

description: The mammalian plasma membrane is a fluid and highly functional semi-permeable barrier between the cell and its environment. It consists of proteins and lipids which are not homogeneously distributed, but show local and temporal heterogeneity. Different mechanisms are suspected to be responsible for membrane heterogeneity, such as lipid-lipid and lipid-protein interactions. In addition, the cortical actin cytoskeleton has been proposed to restrict the motion of proteins and even form diffusion barriers to lipids. Such corrals created by actin are thought to be very small – around 100 nm – making them hard to address experimentally. The aim of this work was to establish a method capable of testing the role of actin in the diffusion behavior of lipids and membrane proteins. For this, a protein micropatterning approach to reorganize the cortical actin skeleton of live cells was used, allowing the measurement of protein and lipid mobility as a function of the local actin density.
Additional file 1 of A randomised controlled crossover trial investigating the short-term effects of different types of vegetables on vascular and metabolic function in middle-aged and older adults with mildly elevated blood pressure: the VEgetableS for vaScular hEaLth (VESSEL) study protocol
Creators: name: Connolly, Emma L.
name: Bondonno, Catherine P.
name: Sim, Marc
name: Radavelli-Bagatini, Simone
name: Croft, Kevin D.
name: Boyce, Mary C.
name: James, Anthony P.
name: Clark, Karin
name: Reindolf Anokye
name: Bondonno, Nicola P.
name: Woodman, Richard J.
name: Devine, Amanda
name: Gan, Seng Khee
name: Schultz, Carl J.
name: Mithen, Richard F.
name: Lewis, Joshua R.
name: Hodgson, Jonathan M.
name: Blekkenhorst, Lauren C.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 1. SPIRIT checklist.
Influence of Yarn Size on the Relative Contributions of Six Cotton Fiber Properties to Strength of Carded Yarn
Creators: name: Webb, Robert W.
name: Webb, Robert W.
Publisher: name: Unknown
Year: 1955
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods

description: Excerpts from the report: Evaluation of the relative importance of measurable cotton fiber properties and other factors of raw-cotton quality to processing performance and product quality is the subject of continuing studies by the Cotton Division of the Agricultural Marketing Service. Such information and related equations derived from these studies are of value to cotton breeders in informing them of the fiber properties they should consider important in their programs, and helpful to the cotton trade and textile industry in choosing cottons best suited to the manufacture of specific products and for meeting various levels of product quality. This is a report of the results obtained from studies to determine the influence of yarn size on the relation of 6 fiber properties to skein strength of carded yarn; and a discussion of discrepancies in results obtained for 14s, the coarsest yarn studied. These findings suggest various problems for further experimentation and exploratory study, in the continuing effort to provide the factual basis needed for developing improved, more standardized, and better controlled methods of testing in cotton spinning laboratories and commercial textile plants. Included in this study are data representing a total of 842 cottons and 3,267 lots of long-draft processed, carded, warp singles yarn, ranging in size from 14s to 60s, with a semi-hard twist, for 3 crop years, 1948-50. Supplementary analyses were made with the data representing 277 cottons and 1,108 lots of yarn from the 1948 crop, stratified by variety and 3 dates of harvesting, for special analytical purposes.
Graphon Filters: Graph Signal Processing in the Limit
Creators: name: Morency, Matthew W.
name: Leus, Geert
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Graph signal processing is an emerging field which aims to model processes that exist on the nodes of a network and are explained through diffusion over this structure. Graph signal processing works have heretofore assumed knowledge of the graph shift operator. Our approach is to investigate the question of graph filtering on a graph about which we only know a model. To do this we leverage the theory of graphons proposed by L. Lovasz and B. Szegedy. We make three key contributions to the emerging field of graph signal processing. We show first that filters defined over the scaled adjacency matrix of a random graph drawn from a graphon converge to filters defined over the Fredholm integral operator with the graphon as its kernel. Second, leveraging classical findings from the theory of the numerical solution of Fredholm integral equations, we define the Fourier-Galerkin shift operator. Lastly, using the Fourier-Galerkin shift operator, we derive a graph filter design algorithm which only depends on the graphon, and thus depends only on the probabilistic structure of the graph instead of the particular graph itself. The derived graphon filtering algorithm is verified through simulations on a variety of random graph models.
description: 13 pages, 14 figures, submitted to Transactions on Signal Processing January 30th 2020
Cooperative Navigation Using Pairwise Communication with Ranging and Magnetic Anomaly Measurements
Creators: name: Yang, Chizhao
name: Strader, Jared
name: Gu, Yu
name: Canciani, Aaron
name: Brink, Kevin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The problem of cooperative localization for a small group of Unmanned Aerial Vehicles (UAVs) in a GNSS denied environment is addressed in this paper. The presented approach contains two sequential steps: first, an algorithm called cooperative ranging localization, formulated as an Extended Kalman Filter (EKF), estimates each UAV's relative pose inside the group using inter-vehicle ranging measurements; second, an algorithm named cooperative magnetic localization, formulated as a particle filter, estimates each UAV's global pose through matching the group's magnetic anomaly measurements to a given magnetic anomaly map. In this study, each UAV is assumed to only perform a ranging measurement and data exchange with one other UAV at any point in time. A simulator is developed to evaluate the algorithms with magnetic anomaly maps acquired from airborne geophysical survey. The simulation results show that the average estimated position error of a group of 16 UAVs is approximately 20 meters after flying about 180 kilometers in 1 hour. Sensitivity analysis shows that the algorithms can tolerate large variations of velocity, yaw rate, and magnetic anomaly measurement noises. Additionally, the UAV group shows improved position estimation robustness with both high and low resolution maps as more UAVs are added into the group.
Comprehensive investigation of Quantum Oscillations in Semimetal Using an ac Composite Magnetoelectric Technique with Ultrahigh Sensitivity
Creators: name: Zhang, Long
name: Wang, Tianyang
name: Zhang, Yugang
name: Liu, Shuang
name: Sun, Yuping
name: Zhou, Xiaoyuan
name: Sun, Young
name: He, Mingquan
name: Wang, Aifeng
name: Luo, Xuan
name: Chai, Yisheng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Quantum oscillation (QO), a physical phenomenon that reflects the characteristics of the Fermi surface and transport fermions, has been extensively observed in metals and semimetals through various approaches, like magnetostriction, magnetization, resistivity, and thermoelectric power. However, only some allowed oscillation frequencies can be revealed by each individual method, particularly in semimetals with intricate Fermi pockets and associated magnetic breakdown phenomena. In this paper, we present the application of an ac composite magnetoelectric (ME) technique to measure the QOs of a topological nodal-line semimetal, ZrSiS, which possesses six fundamental QO frequencies. By employing the ME technique with a maximum magnetic field of 13 T and a minimum temperature of 2 K, we are able to capture all the fundamental frequencies and most of the permissible magnetic breakdown frequencies. In comparison, some of the frequencies were missing in the aforementioned four methods under identical measurement conditions. Remarkably, a series of magnetic breakdown frequencies around 8000 T were revealed even in a magnetic field as low as 7.5 T. These findings highlight the ME technique as an ultrahigh-sensitive tool for studying Dirac Fermions and other topological semimetals with complex Fermi surfaces.
description: 22 pages, 4 figures
Phase-Space Structure for Narrow Planetary Rings
Creators: name: Benet, L.
name: Merlo, O.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We address the occurrence of narrow planetary rings under the interaction with shepherds. Our approach is based on a Hamiltonian framework of non-interacting particles where open motion (escape) takes place, and includes the quasi-periodic perturbations of the shepherd's Kepler motion with small and zero eccentricity. We concentrate in the phase-space structure and establish connections with properties like the eccentricity, sharp edges and narrowness of the ring. Within our scattering approach, the organizing centers necessary for the occurrence of the rings are stable periodic orbits, or more generally, stable tori. In the case of eccentric motion of the shepherd, the rings are narrower and display a gap which defines different components of the ring.
description: 17 pages, 6 low-resolution ps figures (some in colour)
Additional file 1 of Development of molecular diagnostic protocols for simultaneous identification of common bed bugs (Cimex lectularius) and tropical bed bugs (Cimex hemipterus)
Creators: name: Han, Jeong Heum
name: Choi, Junhyeong
name: Cho, Susie
name: Lee, Si Hyeock
name: Kim, Ju Hyeon
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Ecology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Table S1.docx: Bed bug samples for the blind test.
Motion correction for PET using subspace-based real-time MR imaging in simultaneous PET/MR
Creators: name: Marin, Thibault
name: Djebra, Yanis
name: Han, Paul K.
name: Chemli, Yanis
name: Bloch, Isabelle
name: Fakhri, Georges El
name: Ouyang, Jinsong
name: Petibon, Yoann
name: Ma, Chao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Medical Physics (physics.med-ph)
subject: Image and Video Processing (eess.IV)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Image quality of PET reconstructions is degraded by subject motion occurring during the acquisition. MR-based motion correction approaches have been studied for PET/MR scanners and have been successful at capturing regular motion patterns, when used in conjunction with surrogate signals (e.g. navigators) to detect motion. However, handling irregular respiratory motion and bulk motion remains challenging. In this work, we propose an MR-based motion correction method relying on subspace-based real-time MR imaging to estimate motion fields used to correct PET reconstructions. We take advantage of the low-rank characteristics of dynamic MR images to reconstruct high-resolution MR images at high frame rates from highly undersampled k-space data. Reconstructed dynamic MR images are used to determine motion phases for PET reconstruction and estimate phase-to-phase nonrigid motion fields able to capture complex motion patterns such as irregular respiratory and bulk motion. MR-derived binning and motion fields are used for PET reconstruction to generate motion-corrected PET images. The proposed method was evaluated on in vivo data with irregular motion patterns. MR reconstructions accurately captured motion, outperforming state-of-the-art dynamic MR reconstruction techniques. Evaluation of PET reconstructions demonstrated the benefits of the proposed method over standard methods in terms of motion artifact reduction. The proposed method can improve the image quality of motion-corrected PET reconstructions in clinical applications.
description: Submitted to Physics in Medicine and Biology
Additional file 1 of Generation of transgene-free PDS mutants in potato by Agrobacterium-mediated transformation
Creators: name: Bánfalvi, Zsófia
name: Csákvári, Edina
name: Villányi, Vanda
name: Kondrák, Mihály
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Plant Biology

description: Additional file 1 Table S1. Primer sequences; Table S2. Efficiency of PDS mutagenesis with Km selection for 2 weeks followed by counter-selection with 5-FC.
Benzonitrile as a proxy for benzene in the cold ISM: low temperature rate coefficients for CN + C$_6$H$_6$
Creators: name: Cooke, Ilsa R.
name: Gupta, Divita
name: Messinger, Joseph P.
name: Sims, Ian R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The low temperature reaction between CN and benzene (C$_6$H$_6$) is of significant interest in the astrochemical community due to the recent detection of benzonitrile, the first aromatic molecule identified in the interstellar medium (ISM) using radio astronomy. Benzonitrile is suggested to be a low temperature proxy for benzene, one of the simplest aromatic molecules, which may be a precursor to polycyclic aromatic hydrocarbons (PAHs). In order to assess the robustness of benzonitrile as a proxy for benzene, low temperature kinetics measurements are required to confirm whether the reaction remains rapid at the low gas temperatures found in cold dense clouds. Here, we study the C$_6$H$_6$ + CN reaction in the temperature range 15--295 K, using the well-established CRESU technique (a French acronym standing for Reaction Kinetics in Uniform Supersonic Flow) combined with Pulsed Laser Photolysis-Laser-Induced Fluorescence (PLP-LIF). We obtain rate coefficients, $k(T)$, in the range (3.6--5.4) $\times$ 10$^{-10}$ cm$^3$ s$^{-1}$ with no obvious temperature dependence between 15--295 K, confirming that the CN + C$_6$H$_6$ reaction remains rapid at temperatures relevant to the cold ISM.
Regenerated spider silk as a new biomaterial for microelectro-mechanical systems ((MEMS) applications
Creators: name: Bai, Jiamei
Publisher: name: University of British Columbia
Year: 2010

description: The objective of this research is to characterize properties of spider silk in a thin film form and apply it as a new biomaterial for MEMS devices. This research represents a relatively new area of study. Most research to date on spider silk has focused on its fiber form, thus there is a limited understanding of this silk as a film. Furthermore, using spider silk for MEMS applications has never before been realized. In this study, spider silk was manipulated into a solution and spin coated onto a silicon substrate to form a thin film. A microfabrication technique was then developed to create a free standing microbridge structure. Mechanical properties of the film were obtained by both nanoindenting the film on silicon substrate, and by fracture testing of the microbridge. Once these mechanical properties were obtained, the magnetic properties were added to the spider silk film to add more hnctionality to the material. This was done by blending the film with ferromagnetic materials such as Ni and Fe. First, micron sized Ni particles were mixed into the spider silk solution. Using the microfabrication technique developed earlier in this research, cantilever beam were formed from the Ni spider silk material. Studying the magnetic properties of these cantilever beams showed that these beams are susceptible to external magnetic field. Static and dynamic testing of the cantilever beam was performed. Second, iron pentacarbonyl was mixed with spider silk solution.
title: Urban information modelling : keywords: architectural design, urban information modelling, urban analysis, location based services
Creators: name: D'Hont, Boy
Publisher: name: TU Wien
Year: 2017
Subjects: subject: Architectural design
subject: Urban information modelling
subject: Urban analysis
subject: Location based services

description: Die Diplomarbeit entwickelt ein Software Tool das Architekten unterstützt im Prozess der Stadtanalyse. Das Tool ergänzt ein städtebauliches 3D Model mit Daten aus den Google Maps Database und generiert ein “Urban Information Model” während das Prozess. Die Themen der Stadtanalyse greifen von Gebäudefunktionen und Gebäudeaktivitätszeit bis die Orte des Öffentliches Verkehr und Dienstintensität im Bereich. Die generierte Karte und Diagramme unterstützen dem Architekt in der Entwicklung des Hypothese betreffs ein unbekanntes Stadtumfeld und bildet damit ein wertvolles Tool für Architekturwettbewerbe. In der erste Schritt sind die Bedingungen für das Tool definiert. Ein konzeptuelles System Design gestaltet die Fundierung des Software Tools die die Bedingungen erfühlen können. Eine Ausarbeitung der Aspekte leitet nach eine Implementierung des Stadtanalyse Tool Konzept. Ein Case Study in Wien und London prüfen das Potential des Prototyps. Beide Case Studies zeigen dass das Tool Architekten ein gutes Überblick der diversen kulturellen Stadtaspekten bieten kann.
description: This master thesis develops a software tool that aids architects in the process of urban analysis. The tool complements an urban 3D model with data from the Google Maps database, generating an “urban information model” in the process. The topics of urban analysis reach from the function of the building and time of building activity to the location of public transportation stations and density of services in the urban area. The generated charts and graphs assist the architect in the formulation of a hypotheses about the unknown urban area, making the software a practical tool for architectural competition design. First, the requirements for such an urban analysis toolare defined. A conceptual system design lays out the foundation for a software tool that can meet these requirements. The elaboration of these assets leads to the implementation of the urban analysis tool concept. A case study in Vienna and London test the capabilities of this prototype. Both case studies show that the software tool can give the architect a good overview of several cultural aspects in the urban area.
Was GW190412 born from a hierarchical 3+1 quadruple configuration?
Creators: name: Hamers, Adrian S.
name: Safarzadeh, Mohammadtaher
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The gravitational wave source GW190412 is a binary black hole (BBH) merger with three unique properties: i) its mass ratio is about 0.28, the lowest found so far, ii) it has a relatively high positive effective spin parameter χ_eff=0.25, and iii) it is observed to be precessing due to in-plane projected spin of the binary with an in-plane precession parameter χ_p=0.3. The two main formation channels of BBH formation fail to account for GW190412: field formation scenarios cannot explain the observed precession unless by invoking large natal kicks, and dynamical assembly in dense stellar systems is inefficient in producing such low mass-ratio BBH mergers. Here, we investigate whether "double mergers" in wide hierarchical quadruple systems in the "3+1" configuration could explain the unique properties of GW190412. In this scenario, a compact object quadruple system experiences two mergers: first, two compact objects in the innermost orbit merge due to secular chaotic evolution. At a later time, the merged compact object coalesces with another compact object due to secular Lidov-Kozai oscillations. We find that our scenario is consistent with GW190412. In particular, we find a preferential projected spin around χ_p=0.2. However, the likelihood of a double merger is small and the formation efficiency of these systems is uncertain. If GW190412 originated from a double merger in a 3+1 quadruple, we find a strong constraint that the first merger likely occurred between roughly equal-mass BHs in the innermost orbit, since the recoil velocity from unequal-mass BHs would otherwise have disrupted the system.
description: Accepted for publication in ApJ. 14 pages, 12 figures
ÍNDICE DE MODERNIZAÇÃO AGRÍCOLA
Creators: name: Vidal, Marcelo Barbosa
name: Silva, Rubicleis Gomes Da
name: Mendonca, Marcos Dos Santos
name: Lima, Maria Lucinda Da Silva
name: Vidal, Marcelo Barbosa
name: Silva, Rubicleis Gomes Da
name: Mendonca, Marcos Dos Santos
name: Lima, Maria Lucinda Da Silva
Publisher: name: Unknown
Year: 2007
Subjects: subject: Community/Rural/Urban Development
subject: Research and Development/Tech Change/Emerging Technologies
subject: modernização agrícola
subject: análise fatorial
subject: tecnologia

description: Este artigo desenvolve um estudo cujo foco é a modernização agrícola nos municípios do Estado do Acre, seus objetivos são: primeiramente elaborar uma caracterização dos indicadores de modernização agrícola nos municípios do Estado do Acre, empregado o método de análise fatorial aplicada a um grupo de variáveis correlacionadas ao uso das mais significativas tecnologias modernas, em seguida busco-se através da análise de cluster agrupar os municípios em agrupamentos de similaridades. Os resultados possibilitam ponderar que as características dos indicadores de modernização agrícolas estaduais estão fortemente relacionadas às variáveis que captam a intensidade do uso da terra, outra situação observada, esta nos diferentes níveis de modernização agrícola existentes entre os municípios acreanos. Desta forma, verifica-se que no Estado do Acre estão presentes regiões com graus de modernização agrícola significativo, enquanto outras apresentam níveis de modernização reduzidos.
Recursion method for the quasiparticle structure of a single vortex with induced magnetic order
Creators: name: Udby, Linda
name: Andersen, Brian M.
name: Hedegard, Per
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We use a real-space recursion method to calculate the local density of states (LDOS) within a model that contains both d-wave superconducting and antiferromagnetic order. We focus on the LDOS in the superconducting phase near single vortices with either normal or antiferromagnetic cores. Furthermore, we study the low-energy quasiparticle structure when magnetic vortices operate as pinning centers for surrounding unidirectional spin density waves (stripes). We calculate the Fourier transformed LDOS and show how the energy dependence of relevant Fourier components can be used to determine the nature of the magnetic field-induced order, and predict field-induced LDOS features that can be tested by future scanning tunneling microscopy (STM) experiments.
description: 6 pages, 4 figures