cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
TFG Promotes Organization of Transitional ER and Efficient Collagen Secretion
Creators: name: McCaughey, Janine
name: Miller, Victoria J.
name: Stevenson, Nicola L.
name: Brown, Anna K.
name: Budnik, Annika
name: Heesom, Kate J.
name: Alibhai, Dominic
name: Stephens, David J.
Publisher: name: Amsterdam : Elsevier
Year: 2016
Subjects: subject: TFG
subject: collagen
subject: ERESs
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Collagen is the most abundant protein in the animal kingdom. It is of fundamental importance during development for cell differentiation and tissue morphogenesis as well as in pathological processes such as fibrosis and cancer cell migration. However, our understanding of the mechanisms of procollagen secretion remains limited. Here, we show that TFG organizes transitional ER (tER) and ER exit sites (ERESs) into larger structures. Depletion of TFG results in dispersion of tER elements that remain associated with individual ER-Golgi intermediate compartments (ERGICs) as largely functional ERESs. We show that TFG is not required for the transport and packaging of small soluble cargoes but is necessary for the export of procollagen from the ER. Our work therefore suggests a key relationship between the structure and function of ERESs and a central role for TFG in optimizing COPII assembly for procollagen export.
КОНСЕРВАЛАНГАН МАХСУЛОТЛАРНИНГ  НОТЎҒРИ ТАЙЁРЛАШ ОҚИБАТИДА ЮЗАГА КЕЛУВЧИ ОҒИР АСОРАТЛАР
Creators: name: Мухитдинова, Шоира
name: Абдуғаниева, Арофат
name: Каримова, Анора
name: Казимова, Севара
Publisher: name: Zenodo
Year: 2024

description: Консерваланган ёки қадоқланган озиқ-овқат маҳсулотларининг тўғри ҳароратда сақланишига ишонч ҳосил қилиш айниқса муҳимдир. Clostridium botilinum бактериялари нотўғри сақлаш каби назоратсиз шароитларда токсинлар ишлаб чиқариши мумкин. Токсинлар бўлиши мумкин бўлган овқатларни истеъмол қилишдан сақланиш ҳам катта аҳамиятга эга.
Wave overtopping at dykes with topped vertical wall - Impacts of oblique wave attack
Creators: name: Kerpen, Nils B.
name: Schlurmann, Torsten
Publisher: name: Reston : American Society of Civil Engineers
Year: 2012
Subjects: subject: Wave overtopping
subject: Dyke
subject: Hydraulic model test
subject: Mean overtopping discharge
subject: Oblique wave attack
subject: Overtopping discharge
subject: Validation of numerical model
subject: Vertical wall
subject: Wave overtoppings
subject: Conservation
subject: Geometry
subject: Hydraulic models
subject: Shore protection
subject: Water management
subject: Water waves
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Hydraulic model tests at a scale of 1:10 are carried out in a 40 m x 25 m wave basin with a state-of-the-art 3D wave generator in order to collect wave overtopping data at vertical walls and dykes with topped vertical walls. Wave conditions in the near field of the structures, velocities under waves and the mean overtopping discharge are measured. The experiments have been commissioned by the Lower Saxony Water Management, Coastal Defense and Nature Conservation Agency (NLWKN) with the purpose to deliver essential overtopping data for validation of numerical models. Two main geometries are analyzed – each for two specific wave spectra. Overtopping rates are investigated with respect to the remaining freeboard height Rc and the influence of oblique wave attack β{0°, 10°, 30°, 40°, 50°, 60°}. Results are compared with existing analytical approaches. As expected for this special geometrical coastal protection structure, it is examined that overtopping discharges increase with decreasing remaining freeboard. Intensity of the reduction is more dependent on the wave spectra than on the dyke geometry. Mean wave overtopping rate increases with decreasing relative water depth Hm0/d directly in front of the vertical wall. Furthermore, the mean wave overtopping rates decrease with an increasing angle of wave attack β. The correlation between mean wave overtopping rate and freeboard height is given in four newly adapted design formulas, describing the overtopping performance of the two discussed dyke geometries with topped vertical walls.
Synthese und Kristallstruktur von Europium(III)-diacetatotriaquo-chlorid, [Eu(CH3COO)2(H2O)3]Cl
Creators: name: Schleid, Thomas
name: Meyer, Gerd
Publisher: name: Berlin : De Gruyter
Year: 1989
Subjects: subject: Crystal Structure
subject: Rare Earth Acetate Chloride
subject: Synthesis
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Colourless single crystals of [Eu(CH3COO)2(H2O)3]Cl are obtained at about 5°C from a solution of EuCl3 · 6 H2O in a mixture of acetone, tetrahydrofurane and acetanhydride (1:1:2) to which a small amount of water had been added. [Eu(CH3COO)2(H2O)3]Cl crystallizes in the monoclinic system, space group P21/n (No. 14), a = 786.19(5), b = 791.86(5), c = 1768.81(13) pm; β = 98.235(6)°, R = 0.025, Rw = 0.021, Z = 4. Eu3+ is in nine-coordinate surrounding of O2-, three of which belong to water molecules and six to acetate anions (two bidentate and two monodentate). Cationic chains of the composition [Eu(CH3COO)2(H2O)3]+ are formed through further connection via acetate-oxygen atoms. These chains are stacked hexagonally parallel [100] and held together by “lonesome” Cl- anions. The chloride ions are surrounded by 4+1 aquo ligands.
Tuberfemurus torulisinotus Deng, In Deng & Lu 2019
Creators: name: Deng, Wei-An
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Tetrigidae
Tuberfemurus
Tuberfemurus torulisinotus

description: Tuberfemurus torulisinotus Deng, 2019
(Figure 15 D–E)
 Tuberfemurus torulisinotus Deng, In Deng & Lu, 2019: 136 (holotype - ♀, China: Guizhou prov., Daozhen County, in EMHU, examined).
 Type material examined. Holotype, ♀ and paratype ♂, China: Guizhou prov., Daozhen County, Dashahe, 09 VIII. 2017, EMHU.
 Distribution. China (Guizhou).
description: Published as part of Deng, Wei-An, 2020, Taxonomic revision of the subfamily Cladonotinae (Orthoptera: Tetrigidae) from China with description of three new species, pp. 403-440 in Zootaxa 4789 (2) on pages 434-437, DOI: 10.11646/zootaxa.4789.2.4, http://zenodo.org/record/3887709
Gas infall into atomic cooling haloes: on the formation of protogalactic disks and supermassive black holes at z > 10
Creators: name: Prieto, Joaquin
name: Jimenez, Raul
name: Haiman, Zoltan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have performed cosmo-hydro simulations using the RAMSES code to study atomic cooling (ACHs) haloes at z=10 with masses 5E7Msun10 to date. We examine the morphology, angular momentum (AM), thermodynamic, and turbulence of these haloes, in order to assess the prevalence of disks and supermassive black holes (SMBHs). We find no correlation between either the magnitude or the direction of the AM of the gas and its parent DM halo. Only 3 haloes form rotationally supported cores. Two of the most massive haloes form massive, compact overdense blobs. These blobs have an accretion rate ~0.5 Msun/yr (at a distance of 100 pc), and are possible sites of SMBH formation. Our results suggest that the degree of rotational support and the fate of the gas in a halo is determined by its large-scale environment and merger history. In particular, the two haloes forming blobs are located at knots of the cosmic web, cooled early on, and experienced many mergers. The gas in these haloes is lumpy and highly turbulent, with Mach N. >~ 5. In contrast, the haloes forming rotationally supported cores are relatively more isolated, located midway along filaments, cooled more recently, and underwent fewer mergers. Thus, the gas in these haloes is less lumpy and less turbulent (Mach
Dust in the polar region as a major contributor to the IR emission of AGN
Creators: name: Hoenig, Sebastian F.
name: Kishimoto, Makoto
name: Tristram, Konrad R. W.
name: Prieto, M. Almudena
name: Gandhi, Poshak
name: Asmus, Daniel
name: Antonucci, Robert
name: Burtscher, Leonard
name: Duschl, Wolfgang J.
name: Weigelt, Gerd
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: (abridged) It is generally assumed that the distribution of dust on parsec scales forms a geometrically- and optically-thick entity in the equatorial plane around the accretion disk and broad-line region - dubbed "dust torus" - that emits the bulk of the sub-arcsecond-scale IR emission and gives rise to orientation-dependent obscuration. Here we report detailed interferometry observations of the unobscured (type 1) AGN in NGC 3783 that allow us to constrain the size, elongation, and direction of the mid-IR emission with high accuracy. The mid-IR emission is characterized by a strong elongation toward position angle PA -52 deg, closely aligned with the polar axis (PA -45 deg). We determine half-light radii along the major and minor axes at 12.5 μm of (4.23 +/- 0.63) pc x (1.42 +/- 0.21) pc, which corresponds to intrinsically-scaled sizes of (69.4 +/- 10.8) rin x (23.3 +/- 3.5) rin for the inner dust radius of rin = 0.061 pc as inferred from near-IR reverberation mapping. This implies an axis ratio of 3:1, with about 60-90% of the 8-13 μm emission associated with the polar-elongated component. These observations are difficult to reconcile with the standard interpretation that most of the parsec-scale mid-IR emission in AGN originates from the torus and challenges the justification of using simple torus models to model the broad-band IR emission. It is quite likely that the hot-dust emission in NGC 3783 as recently resolved by near-IR interferometry is misaligned with the mid-IR emitting source, which also finds a correspondence in the two distinct 3-5 μm and 20 μm bumps seen in the high-angular resolution spectral energy distribution (SED). We conclude that these observations support a scenario where the majority of the mid-IR emission in Seyfert AGN originates from a dusty wind in the polar region of the AGN.
description: 15 pages, 9 figures, 3 tables; published in ApJ, 771, 87 (2013), online on June 20, 2013; for artist's impressions see http://www.eso.org/public/news/eso1327
Gravitational Observations and LQGUP
Creators: name: Hemeda, Mohammed
name: Alshal, Hassan
name: Ali, Ahmed Farag
name: Vagenas, Elias C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Motivated by recent works, we employ the bounds on the dimensionless quantum-gravity parameter obtained from six gravitational tests in order to obtain bounds on the dimensionless parameter of the generalized uncertainty principle with linear and quadratic terms in momentum. The bounds obtained here are much tighter than those obtained, from the same six gravitational tests, for the dimensionless parameter of the uncertainty principle with only quadratic terms in momentum.
description: v1: 8 pages, no figures, LaTex; v2: 8 pages, no figures, LaTex, no change in physics, to appear in NPB
Soliton Propagation with Cross Phase Modulation in Silicon Photonic Crystal Waveguides
Creators: name: Marko, Matthew
name: Li, Xiujian
name: Zheng, Jiangjun
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: An effort was conducted to numerically determine, using the Nonlinear Schrodinger Split-Step Fourier method, if using cross phase modulation could cause temporal soliton pulse propagation in a silicon slow-light photonic crystal waveguide shorter than a millimeter. The simulations demonstrated that due to the higher powers and shorter scales of photonic crystals, two-photon absorption would cause an optical soliton pulse to be extremely dissipative. The model demonstrated, however, that by utilizing cross-phase modulation, it is possible to sustain a compressed soliton pulse within a silicon photonic crystal waveguide subjected to two-photon absorption over longer relative distances.
Applications of a space-time FOSLS formulation for parabolic PDEs
Creators: name: Gantner, Gregor
name: Stevenson, Rob
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this work, we show that the space-time first-order system least-squares (FOSLS) formulation [Führer, Karkulik, Comput. Math. Appl. 92 (2021)] for the heat equation and its recent generalization [Gantner, Stevenson, ESAIM Math. Model. Numer. Anal. 55 (2021)] to arbitrary second-order parabolic PDEs can be used to efficiently solve parameter-dependent problems, optimal control problems, and problems on time-dependent spatial domains.
title: Международно-правовое регулирование влияния нанотехнологий на безопасность человека и окружающей среды
Creators: name: Зульфугарзаде, Теймур
Publisher: name: Горный информационно-аналитический бюллетень (научно-технический журнал)
Year: 2010

description: Исследованы основы международно-правового обеспечения безопасного производства и распространения наноматериалов и нанопродукции, осуществляемого в рамках реализации проекта «Наноформат».
On the accuracy of the normal approximation for the free energy in the REM
Creators: name: Meiners, Raphael
name: Reichenbachs, Anselm
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In the present paper we consider the fluctuations of the free energy in the random energy model (REM) on a moderate deviation scale. We find that for high temperatures the normal approximation holds only in a narrow range of scalings away from the CLT. For scalings of higher order, probabilities of moderate deviations decay faster than exponentially.
Bouncing Dark Matter
Creators: name: Puetter, Lucas
name: Ruderman, Joshua T.
name: Salvioni, Ennio
name: Shakya, Bibhushan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a novel mechanism for thermal dark matter production, characterized by a "bounce": the dark matter equilibrium distribution transitions from the canonical exponentially falling abundance to an exponentially rising one, resulting in an enhancement of the freezeout abundance by many orders of magnitude. We discuss several realizations of bouncing dark matter. The bounce allows the present day dark matter annihilation cross section to be significantly larger than the canonical thermal target, improving the prospects for indirect detection signals.
description: 9 pages, 7 figures; v2: minor changes and references added, matches published version
Quantum frameness for Charge-Parity-Time inversion symmetry
Creators: name: Skotiniotis, Michael
name: Toloui, Borzu
name: Durham, Ian T.
name: Sanders, Barry C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a theory of charge-parity-time (CPT) frameness resources to circumvent CPT-superselection. We construct and quantify such resources for spin~0, $\frac{1}{2}$, 1, and Majorana particles and show that quantum information processing is possible even with CPT superselection. Our method employs a unitary representation of CPT inversion by considering the aggregate action of CPT rather than the composition of separate C, P and T operations, as some of these operations involve problematic anti-unitary representations.
description: Accepted for publication in Physical Review Letters
Uncertainty of rainfall products: Impact on modelling household nutrition from rain-fed agriculture in Southern Africa
Creators: name: Luetkemeier, Robert
name: Stein, Lina
name: Drees, Lukas
name: Müller, Hannes
name: Liehr, Stefan
Publisher: name: Basel : MDPI AG
Year: 2018
Subjects: subject: Food security
subject: Model uncertainty
subject: Remote sensing
subject: Satellite rainfall estimates
subject: Subsistence agriculture
subject: Crops
subject: Food supply
subject: Nutrition
subject: Soil moisture
subject: Time series
subject: Uncertainty analysis
subject: Weather forecasting
subject: Humanitarian assistances
subject: Meteorological station
subject: Model uncertainties
subject: Rain fed agriculture
subject: Remaining differences
subject: Satellite rainfalls
subject: Rain
subject: agricultural modeling
subject: calibration
subject: diet
subject: food security
subject: household survey
subject: modeling
subject: nutrition
subject: precipitation assessment
subject: rainfall
subject: rainfed agriculture
subject: remote sensing
subject: satellite data
subject: subsistence agriculture
subject: time series
subject: uncertainty analysis
subject: Angola
subject: Cuvelai-Etosha Basin
subject: Namibia
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft::333 | Boden- und Energiewirtschaft::333,7 | Natürliche Ressourcen, Energie und Umwelt
subject: Dewey Decimal Classification::500 | Naturwissenschaften::551 | Geologie, Hydrologie, Meteorologie

description: Good quality data on precipitation are a prerequisite for applications like short-term weather forecasts, medium-term humanitarian assistance, and long-term climate modelling. In Sub-Saharan Africa, however, the meteorological station networks are frequently insufficient, as in the Cuvelai-Basin in Namibia and Angola. This paper analyses six rainfall products (ARC2.0, CHIRPS2.0, CRU-TS3.23, GPCCv7, PERSIANN-CDR, and TAMSAT) with respect to their performance in a crop model (APSIM) to obtain nutritional scores of a household's requirements for dietary energy and further macronutrients. All products were calibrated to an observed time series using Quantile Mapping. The crop model output was compared against official yield data. The results show that the products (i) reproduce well the Basin's spatial patterns, and (ii) temporally agree to station records (r = 0.84). However, differences exist in absolute annual rainfall (range: 154 mm), rainfall intensities, dry spell duration, rainy day counts, and the rainy season onset. Though calibration aligns key characteristics, the remaining differences lead to varying crop model results. While the model well reproduces official yield data using the observed rainfall time series (r = 0.52), the products' results are heterogeneous (e.g., CHIRPS: r = 0.18). Overall, 97% of a household's dietary energy demand is met. The study emphasizes the importance of considering the differences among multiple rainfall products when ground measurements are scarce. © 2018 by the authors.
Time Domain Mapping of Spin Torque Oscillator Effective Energy
Creators: name: Rowlands, Graham E.
name: Katine, Jordan A.
name: Langer, Juergen
name: Zhu, Jian
name: Krivorotov, Ilya N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Stochastic dynamics of spin torque oscillators (STOs) can be described in terms of magnetization drift and diffusion over a current-dependent effective energy surface given by the Fokker-Planck equation. Here we present a method that directly probes this effective energy surface via time-resolved measurements of the microwave voltage generated by a STO. We show that the effective energy approach provides a simple recipe for predicting spectral line widths and line shapes near the generation threshold. Our time domain technique also accurately measures the field-like component of spin torque in a wide range of the voltage bias values.
description: 5 pages, 3 figures. Supplement included: 7 pages, 6 figures
Yunnantettix Zheng 1995
Creators: name: Deng, Wei-An
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Tetrigidae
Yunnantettix

description: Key to Chinese species of Yunnantettix
 1. External carina of pronotum above the tegmen only slightly curved upward or almost straight; apex of posterior pronotal process with deep excision.............................................................  Y. bannaensis Zheng, 1995
 - External lateral carina of pronotum above the tegmen strongly curved upward, arch-like; apex of posterior pronotal process with shallow excision..................................................  Y. thaicus Storozhenko & Pushkar, 2015
description: Published as part of Deng, Wei-An, 2020, Taxonomic revision of the subfamily Cladonotinae (Orthoptera: Tetrigidae) from China with description of three new species, pp. 403-440 in Zootaxa 4789 (2) on page 437, DOI: 10.11646/zootaxa.4789.2.4, http://zenodo.org/record/3887709
Using building and bridge information for adapting roads to ALS data by means of network snakes
Creators: name: Goepfert, Jens
name: Rottensteiner, Franz
Publisher: name: Göttingen : Copernicus GmbH
Year: 2010
Subjects: subject: bridges
subject: buildings
subject: snakes
subject: networks
subject: vector data
subject: roads
subject: ALS
subject: intensity
subject: topology
subject: consistency
subject: laser scanner data
subject: extraction
subject: images
subject: models
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: In the German Authoritative Topographic Cartographic Information System (ATKIS), the 2D positions and the heights of objects such as roads are stored separately in the digital landscape model (DLM) and digital terrain model (DTM), which is often acquired by airborne laser scanning (ALS). However, an increasing number of applications require a combined processing and visualization of these two data sets. Due to different kinds of acquisition, processing, and modelling discrepancies exist between the DTM and DLM and thus a simple integration may lead to semantically incorrect 3D objects. For example, roads may be situated on strongly tilted DTM parts and rivers sometimes flow uphill. In this paper we propose an algorithm for the adaptation of 2D road centrelines to ALS data by means of network snakes. Generally, the image energy for the snakes is defined based on ALS intensity and height information and derived products. Additionally, buildings and bridges as strong features in height data are exploited in order to support the road adaptation process. Extracted buildings as priors modified by a distance transform are used to create a force of repulsion for the road vectors integrated in the image energy. In contrast, bridges give strong evidence for the correct road position in the height data. Therefore, the image energy is adapted for the bridge points. For that purpose bridge detection in the DTM is performed starting from an approximate position using template matching. Examples are given which apply the concept of network-snakes with new image energy for the adaptation of road networks to ALS data taking advantage of the prior known topology.
Exploring Torus Universes in Causal Dynamical Triangulations
Creators: name: Budd, T. G.
name: Loll, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Motivated by the search for new observables in nonperturbative quantum gravity, we consider Causal Dynamical Triangulations (CDT) in 2+1 dimensions with the spatial topology of a torus. This system is of particular interest, because one can study not only the global scale factor, but also global shape variables in the presence of arbitrary quantum fluctuations of the geometry. Our initial investigation focusses on the dynamics of the scale factor and uncovers a qualitatively new behaviour, which leads us to investigate a novel type of boundary conditions for the path integral. Comparing large-scale features of the emergent quantum geometry in numerical simulations with a classical minisuperspace formulation, we find partial agreement. By measuring the correlation matrix of volume fluctuations we succeed in reconstructing the effective action for the scale factor directly from the simulation data. Apart from setting the stage for the analysis of shape dynamics on the torus, the new set-up highlights the role of nontrivial boundaries and topology.
description: 30 pages, 12 figures
AI and 6G into the Metaverse: Fundamentals, Challenges and Future Research Trends
Creators: name: Zawish, Muhammad
name: Dharejo, Fayaz Ali
name: Khowaja, Sunder Ali
name: Dev, Kapal
name: Davy, Steven
name: Qureshi, Nawab Muhammad Faseeh
name: Bellavista, Paolo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Human-Computer Interaction (cs.HC)
subject: Networking and Internet Architecture (cs.NI)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Since Facebook was renamed Meta, a lot of attention, debate, and exploration have intensified about what the Metaverse is, how it works, and the possible ways to exploit it. It is anticipated that Metaverse will be a continuum of rapidly emerging technologies, usecases, capabilities, and experiences that will make it up for the next evolution of the Internet. Several researchers have already surveyed the literature on artificial intelligence (AI) and wireless communications in realizing the Metaverse. However, due to the rapid emergence and continuous evolution of technologies, there is a need for a comprehensive and in-depth survey of the role of AI, 6G, and the nexus of both in realizing the immersive experiences of Metaverse. Therefore, in this survey, we first introduce the background and ongoing progress in augmented reality (AR), virtual reality (VR), mixed reality (MR) and spatial computing, followed by the technical aspects of AI and 6G. Then, we survey the role of AI in the Metaverse by reviewing the state-of-the-art in deep learning, computer vision, and Edge AI to extract the requirements of 6G in Metaverse. Next, we investigate the promising services of B5G/6G towards Metaverse, followed by identifying the role of AI in 6G networks and 6G networks for AI in support of Metaverse applications, and the need for sustainability in Metaverse. Finally, we enlist the existing and potential applications, usecases, and projects to highlight the importance of progress in the Metaverse. Moreover, in order to provide potential research directions to researchers, we underline the challenges, research gaps, and lessons learned identified from the literature review of the aforementioned technologies.
description: 40 pages, 16 Figures, and 7 Tables
Remarks on the Einstein-Euler-Entropy system
Creators: name: Disconzi, Marcelo M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We prove short-time existence for the Einstein-Euler-Entropy system for non-isentropic fluids with data in uniformly local Sobolev spaces. The cases of compact as well as non-compact Cauchy surfaces are covered. The method employed uses a Lagrangian description of the fluid flow which is based on techniques developed by Friedrich, hence providing a completely different proof of earlier results of Choquet-Bruhat and Lichnerowicz. This new proof is specially suited for applications to self-gravitating fluid bodies.
The type-I antiferromagnetic Weyl semimetal InMnTi$_2$
Creators: name: Grassano, Davide
name: Binci, Luca
name: Marzari, Nicola
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Topological materials have been a main focus of studies in the past decade due to their protected properties that can be exploited for the fabrication of new devices. Among them, Weyl semimetals are a class of topological semimetals with non-trivial linear band crossing close to the Fermi level. The existence of such crossings requires the breaking of either time-reversal or inversion symmetry and is responsible for the exotic physical properties. In this work we identify the full-Heusler compound InMnTi$_2$, as a promising, easy to synthesize, $T$- and $I$-breaking Weyl semimetal. To correctly capture the nature of the magnetic state, we employed a novel $\mathrm{DFT}+U$ computational setup where all the Hubbard parameters are evaluated from first-principles; thus preserving a genuinely predictive \textit{ab initio} character of the theory. We demonstrate that this material exhibits several features that are comparatively more intriguing with respect to other known Weyl semimetals: the distance between two neighboring nodes is large enough to observe a wide range of linear dispersions in the bands, and only one kind of such node's pairs is present in the Brillouin zone. We also show the presence of Fermi arcs stable across a wide range of chemical potentials. Finally, the lack of contributions from trivial points to the low-energy properties makes the materials a promising candidate for practical devices.
description: Improved method description and bibliography
Nonequilibrium dynamical mean field simulation of inhomogeneous systems
Creators: name: Eckstein, Martin
name: Werner, Philipp
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We extend the nonequilibrium dynamical mean field (DMFT) formalism to inhomogeneous systems by adapting the "real-space" DMFT method to Keldysh Green's functions. Solving the coupled impurity problems using strong-coupling perturbation theory, we apply the formalism to homogeneous and inhomogeneous layered systems with strong local interactions and up to 39 layers. We study the diffusion of doublons and holes created by photo-excitation in a Mott insulating system, the time-dependent build-up of the polarization and the current induced by a linear voltage bias across a multi-layer structure, and the photo-induced current in a Mott insulator under bias.
description: 13 pages,10 figures
The derivation of Swarming models: Mean-Field Limit and Wasserstein distances
Creators: name: Carrillo, J. A.
name: Choi, Y. -P.
name: Hauray, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: These notes are devoted to a summary on the mean-field limit of large ensembles of interacting particles with applications in swarming models. We first make a summary of the kinetic models derived as continuum versions of second order models for swarming. We focus on the question of passing from the discrete to the continuum model in the Dobrushin framework. We show how to use related techniques from fluid mechanics equations applied to first order models for swarming, also called the aggregation equation. We give qualitative bounds on the approximation of initial data by particles to obtain the mean-field limit for radial singular (at the origin) potentials up to the Newtonian singularity. We also show the propagation of chaos for more restricted set of singular potentials.
Improved information criteria for Bayesian model averaging in lattice field theory
Creators: name: Neil, Ethan T.
name: Sitison, Jacob W.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Bayesian model averaging is a practical method for dealing with uncertainty due to model specification. Use of this technique requires the estimation of model probability weights. In this work, we revisit the derivation of estimators for these model weights. Use of the Kullback-Leibler divergence as a starting point leads naturally to a number of alternative information criteria suitable for Bayesian model weight estimation. We explore three such criteria, known to the statistics literature before, in detail: a Bayesian analogue of the Akaike information criterion which we call the BAIC, the Bayesian predictive information criterion (BPIC), and the posterior predictive information criterion (PPIC). We compare the use of these information criteria in numerical analysis problems common in lattice field theory calculations. We find that the PPIC has the most appealing theoretical properties and can give the best performance in terms of model-averaging uncertainty, particularly in the presence of noisy data, while the BAIC is a simple and reliable alternative.
description: 70 pages, 13 figures. v2: corrections to data subset formulas for BPIC and PPIC; edits for clarity. v3: updated to journal version
Tomographieverfahren bei kleinen Nagern als ein prädiktives Modell zur Darstellung pathologischer Marker bei Morbus Alzheimer
Creators: name: Rösner, Beate
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2009
Subjects: subject: MRT
subject: PET
subject: präklinische Immunisierungsstudien
subject: Morbus Alzheimer
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
title: Community Healthcare Providers’ Perspectives on HIV Pre-Exposure Prophylaxis (PrEP) Use among Black Women
Creators: name: Pitchford, Kayla
name: Shangani, Sylvia
name: Dawson, Charlotte
name: Heron, Kristin
Publisher: name: Old Dominion University Libraries
Year: 2023

description: The most at-risk population among women for HIV diagnosis in the U.S. are Black women, who account for 61% of all new HIV cases. Pre-exposure prophylaxis (PrEP) is a safe and effective HIV prevention method for people at risk of HIV acquisition. Despite being disproportionately affected by HIV, Black women’s knowledge, perceived benefits, and uptake of PrEP remain low. The socio-ecological model may be useful for understanding why there is a low uptake of PrEP among Black women by examining the complex interplay between individual, relationship, community, and societal factors. The current study used the socio-ecological framework to explore provider perspectives on the barriers and facilitators of PrEP uptake among Black women in Eastern Virginia. Semi-structured interviews were conducted with a purposeful sample of one PrEP prescriber and 14 community healthcare workers. Healthcare providers identified barriers to PrEP uptake among Black women at the individual (e.g., basic needs not met, lack of childcare, low medical literacy), interpersonal (e.g., perception partner(s) are safe), community (e.g., long waitlists, military culture lacks anonymity), organizational (e.g., clinic materials focus on men), and societal (e.g., PrEP ads focus on gay men, stigma, lack of trust in the medical community) levels. Providers also identified factors that facilitate PrEP uptake at the individual (e.g., flexible work schedule, current/past STI diagnosis), interpersonal (e.g., partner is HIV positive), organizational (e.g., more female screeners/providers, PrEP materials that include women, encouraging PrEP for everyone), community (e.g., making PrEP information available where Black women go), and societal (e.g., HIV education in schools) levels. These findings highlight unique barriers to accessing and taking PrEP for Black women in the U.S., and potential factors that could facilitate PrEP use. Examining barriers and facilitators may be important to guide future research that considers multi-level interventions to improve uptake of PrEP among Black women.
Single image geometry inspection using inverse endoscopic fringe projection
Creators: name: Matthias, Steffen
name: Ohrt, Christoph
name: Pösch, Andreas
name: Kästner, Markus
name: Reithmeier, Eduard
Publisher: name: Budapest : International Measurement Confederation (IMEKO)
Year: 2015
Subjects: subject: Endoscopy
subject: Fiberscopy
subject: Inverse fringe projection
subject: Sheet bulk metal forming
subject: Dewey Decimal Classification::600 | Technik

description: Fringe projection is an important technology for the measurement of free form elements in several application fields. It can be applied to measure geometry elements smaller than one millimeter. In combination with deviation analysis algorithms, errors in fabrication lines can be found promptly to minimize rejections. However, some fields cannot be covered by the classical fringe projection approach. Due to shadowing, filigree form elements on narrow or internal carrier geometries cannot be captured. To overcome this limitation, a fiberscopic micro fringe projection sensor was developed [1]. The new device is capable of resolutions of less than 15 m with uncertainties of about 35 m in a workspace of 3x3x3 mm. Using standard phase measurement techniques, such as Gray-code and cos-patterns, measurement times of over a second are too long for in-situ operation. The following work will introduce an approach of applying a new single image measuring method to the fiberscopic system, based on inverse fringe projection [2]. The fiberscopic fringe projection system employs a laser light source in combination with a digital micro-mirror device (DMD) to generate fringe patterns. Fiber optical image bundles (FOIB) are used as well as gradient-index lenses to project these patterns on the specimen. This advanced optical system creates high demands on the pattern generation algorithms to generate exact inverse patterns for arbitrary CAD-modelled geometries. Approaches of optical simulations of the complex beam path and the drawbacks of the limited resolutions of the FOIBs are discussed. Early results of inverse pattern simulations using a ray tracing approach of a pinhole system model are presented.
Distributed Estimation and Detection with Bounded Transmissions over Gaussian Multiple Access Channels
Creators: name: Dasarathan, Sivaraman
name: Tepedelenlioglu, Cihan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: A distributed inference scheme which uses bounded transmission functions over a Gaussian multiple access channel is considered. When the sensor measurements are decreasingly reliable as a function of the sensor index, the conditions on the transmission functions under which consistent estimation and reliable detection are possible is characterized. For the distributed estimation problem, an estimation scheme that uses bounded transmission functions is proved to be strongly consistent provided that the variance of the noise samples are bounded and that the transmission function is one-to-one. The proposed estimation scheme is compared with the amplify-and-forward technique and its robustness to impulsive sensing noise distributions is highlighted. In contrast to amplify-and-forward schemes, it is also shown that bounded transmissions suffer from inconsistent estimates if the sensing noise variance goes to infinity. For the distributed detection problem, similar results are obtained by studying the deflection coefficient. Simulations corroborate our analytical results.
description: 24 Pages, 7 Figures, Will be submitted to an IEEE journal
Transformation of passive electrical networks with distributed PWL-sources using a Model Order Reduction
Creators: name: Ludwig, Stefan
name: Mathis, Wolfgang
Publisher: name: Göttingen : Copernicus GmbH
Year: 2009
Subjects: subject: Distributed sources
subject: Distributed systems
subject: Electrical networks
subject: High complexity
subject: Independent sources
subject: Model order reduction
subject: Model reduction
subject: Number of sources
subject: Electrical engineering
subject: Electronics engineering
subject: Complex networks
subject: Dewey Decimal Classification::600 | Technik

description: In modeling of distributed systems with distributed sources large networks with RLC-elements and independent sources arise. This high complexity leads to a high effort in simulations. Therefore model reduction can be used to reduce these networks, preserving the behavior at the observed nodes in the networks. For the reduction of networks with a large number of independent sources only a weak reduction is enabled with standard model reduction techniques. In this paper an efficient reduction of networks with a large number of sources with piece-wise-linear waveforms is presented, using the decomposition of piece-wise-linear functions. With the proposed method a higher reduction of the network and/or a higher accuracy can be achieved with model reduction. The validity and efficiency of the proposed method is shown by reducing a RCI-Grid model.
Shielding of electronic systems against transient electromagnetic interferences
Creators: name: Herlemann, H.
name: Korte, S.
name: Camp, M.
name: Garbe, Heyno
name: Koch, M.
name: Sabath, F.
Publisher: name: Göttingen : Copernicus GmbH
Year: 2005
Subjects: subject: Double exponential pulse
subject: Electrically conductive
subject: Electronic device
subject: Electronic systems
subject: Failure rate
subject: Time domain measurement
subject: Transient electromagnetics
subject: Conductive materials
subject: Electromagnetic wave interference
subject: Electronics engineering
subject: Partial discharges
subject: Time domain analysis
subject: Transient analysis
subject: Electromagnetic pulse
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: In order to protect electronic systems against the effects of transient electromagnetic interferences, shields made of electrically conductive material can be used. The subject of this paper is an electrically conductive textile. When applying the shield, a reliable measure is needed in order to determine the effectiveness of the shield to protect against electromagnetic pulses. For this purpose, a time domain measurement technique is presented using double exponential pulses. With these pulses, the susceptibility of an operating electronic device with and without the shield is determined. As a criterion of quality of a shield, the breakdown failure rate found in both cases is compared. © 2004 Copernicus GmbH.
Two-dimensional crossover and strong coupling of plasmon excitations in arrays of one-dimensional atomic wires
Creators: name: Lichtenstein, Timo
name: Aulbach, J.
name: Schäfer, J.
name: Claessen, R.
name: Tegenkamp, Christoph
name: Pfnür, Herbert
Publisher: name: College Park, MD : American Physical Society
Year: 2016
Subjects: subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Dimensional crossover is of high relevance to understanding real-world quasi-one-dimensional (1D) systems. Here we study the collective excitations, measured as plasmon dispersions in an electron energy loss experiment, in a tunable family of model systems, namely, Au chains on stepped Si(hhk) substrates, that allow variations of chain widths and interchain spacings. We indeed observe 1D-like dispersions, but with a significant influence of higher dimensions. Surprisingly, we find that it is not the interchain coupling but the width of the conduction channel, as confirmed by tunneling spectroscopy, that dominates the excitations. © 2016 American Physical Society.
Potamogeton alpinus L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: A. alpinus L. Cat. 185. Vgl. Guyot Lit. 1915b. 1 Nach Burnat, Flore d. Alpes Maritimes, Bd. V, 2 (auct. Briquet et Cavillier), S. 271 (1915) zur var. vulgaris DC. gehörende Varietät. Bis 3130 m: Gornergrat bei Zermatt (Braun-Blanquet 1919). Andere hohe Stellen aus neuerer Zeit sind: Oberrothorn bei Zermatt, 3100 m (Braun-Blanquet 1919); Hinter-Allalin (Saas), 3050 m (Obersan 1953). Das Maximum des Cat.: 3100 m (Vincenthütte) bezieht sich auf eine in Italien liegende Stelle, und es ist, wie in vielen ändernFällen,zu dieserAngabezubemerken, dassdie BrüderSCHLAG- INTWEIT (Lit. 1854, S.227) die Art aus den «Umgebungen»der genanntenHütte (= 3165m) melden, aber ohne genaue Höhenbezeichnung. Abwärts bis 1180 m: Staldenried (Beauverd) und 930 m: südöstlichdes BahnhofesHohtenn (Dübi),herabgeschwemmtbis480m:beiChäteauneuf(Beauverd); die var. Wolfii nur in tieferen Lagen, abwärts bis etwa 500 m. Var. dolomiticus Beck - Verbreitet. Var. breyninus Beck (var. hirsutus F. 0. Wolf) - l: Alpen von Morgins (F. Schneider). - 3: Evolene (Pannatier). Var. Wolfii Favrat - 2: Bei der Kapelle St-Bernard ob Ardon (Beauverd); Sitten (Wolf); St-Leonard (Pannatier); Le Chätelard (Besse); Eggerberg (Becherer und Thommen). - 3: Ob Bramois (Wilczek); Unterems (Becherer); Turtmanntal (Goudet); westlich Turtig (Becherer und Zwicky); Turtig-Visp (B.B.T.Z.); Visp (Wilczek); Visp-Stalden, linkes Ufer der Visp (B.B.T. Z.; Hirschmann); Gamsen (Becherer und Zwicky). Var. Chodati Guyot - 3: Catogne; Zermatt; «Saas»; Rotwald am Simplon (alles: nach Guyot). - 4: Binn (Beauverd, nach Guyot). Forma polyccphalus Anzi (A. Garibaldii Brügger) - 3: Riffelberg bei Zermatt (Wolf). Forma albiflorus Ducommun (f. leucaster Beck) - Mehrfach angegeben. Forma discoideus auct. - 3: Findelen bei Zermatt (Becherer und Berset). - 3a: Zwischbergen (Chenevard). Die von BEAUVERD aus dem Turtmanntal angegebene var. heteromorphus Beauverd gehört zur var. dolomiücus (vgl. Becherer Lit. 1942b, S. 127).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Statistical characterization of pulsar glitches and their potential impact on searches for continuous gravitational waves
Creators: name: Ashton, G.
name: Prix, R.
name: Jones, D.I.
Publisher: name: College Park, MD : American Physical Society
Year: 2017
Subjects: subject: gravitational waves
subject: neutron stars
subject: pulsar glitches
subject: neutron pulsars
subject: gravitation
subject: Gravitationswelle
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Continuous gravitational waves from neutron stars could provide an invaluable resource to learn about their interior physics. A common search method involves matched filtering a modeled template against the noisy gravitational-wave data to find signals. This method suffers a mismatch (i.e., relative loss of the signal-to-noise ratio) if the signal deviates from the template. One possible instance in which this may occur is if the neutron star undergoes a glitch, a sudden rapid increase in the rotation frequency seen in the timing of many radio pulsars. In this work, we use a statistical characterization of the glitch rate and size in radio pulsars to estimate how often neutron star glitches would occur within the parameter space of continuous gravitational-wave searches and how much mismatch putative signals would suffer in the search due to these glitches. We find that for many previous and potential future searches continuous-wave signals have an elevated probability of undergoing one or more glitches and that these glitches will often lead to a substantial fraction of the signal-to-noise ratio being lost. This could lead to a failure to identify candidate gravitational-wave signals in the initial stages of a search and also to the false dismissal of candidates in subsequent follow-up stages. © 2017 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.