cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Instagram Posts for Canadian Small Businesses: Types and Effectiveness
Creators: Gillian Harris
Publisher: name: University of Alberta Library
Year: 2022

Now more than ever, small business owners are relying on social media, such as Instagram, to

find customers, connect with them, build relationships, and provide value by offering their

products/services. Instagram users scroll rapidly through their feeds and see photos, videos and

captions and spend only seconds looking at each before moving on to the next. What types of

content are Canadian small businesses sharing on Instagram and how effective are they at

capturing engagement? This research uses Semiotic theory to evaluate the photographic elements

in a selection of posts; and uses Uses and Gratification theory to evaluate the captions of the

posts for message strategies. The resulting categories were compared to the record of

engagement in the form of likes or comments. The findings demonstrate that users engage more

with certain types of content such as product-centered images, posts that mention giveaways, and

genuine expressions of emotion. Small business owners may use these findings as a starting

point for assessing their use of Instagram and other social media platforms and for developing

their own content strategy.
Fundamental quantum limits in ellipsometry
Creators: name: Rudnicki, L.
name: Sanchez-Soto, L. L.
name: Leuchs, G.
name: Boyd, R. W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We establish the ultimate limits that quantum theory imposes on the accuracy attainable in optical ellipsometry. We show that the standard quantum limit, as usual reached when the incident light is in a coherent state, can be surpassed with the use of appropriate squeezed states and, for tailored beams, even pushed to the ultimate Heisenberg limit.
description: To be published in Optics Letters
Periodic orbit theory of Bethe-integrable quantum systems: an $N$-particle Berry-Tabor trace formula
Creators: name: Urbina, Juan Diego
name: Kelly, Michael
name: Richter, Klaus
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: One of the fundamental results of semiclassical theory is the existence of trace formulae showing how spectra of quantum mechanical systems emerge from massive interference among amplitudes related with time-periodic structures of the corresponding classical limit. If it displays the properties of Hamiltonian integrability, this connection is given by the celebrated Berry-Tabor trace formula, and the periodic structures it is built on are KAM tori supporting closed trajectories in phase space. Here we show how to extend this connection into the domain of quantum many-body systems displaying integrability in the sense of the Bethe ansatz, where a classical limit cannot be rigorously defined due to the presence of singular potentials. Formally following the original derivation of Berry and Tabor [1, 2], but applied to the Bethe equations without underlying classical structure, we obtain a many-particle trace formula for the density of states of N interacting bosons on a ring, the Lieb-Liniger model. Our semiclassical expressions are in excellent agreement with quantum mechanical results for $N$ = 2, 3 and 4 particles. For N = 2 we relate our results to the quantization of billiards with mixed boundary conditions. Our work paves the way towards the treatment of the important class of integrable many-body systems by means of semiclassical trace formulae pioneered by Michael Berry in the single-particle context.
description: 9 pages, 3 figures, contribution to the special issue honoring the scientific life of Michael Berry
Electron-Energy Loss of Ultraviolet Plasmonic Modes in Aluminum Nanodisks
Creators: name: Yang, Yujia
name: Hobbs, Richard G.
name: Keathley, Phillip D.
name: Berggren, Karl K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We theoretically investigated electron energy loss spectroscopy (EELS) of ultraviolet surface plasmon modes in aluminum nanodisks. Using full-wave simulations, we studied the impact of diameter on the resonant modes of the nanodisks. We found that the mode behavior can be separately classified for two distinct cases: (1) flat nanodisks where the diameter is much less than the thickness; and (2) thick nanodisks where the diameter is comparable to the thickness. While the multipolar edge modes and breathing modes of flat nanostructures have previously been interpreted using intuitive, analytical models based on surface plasmon polariton (SPP) modes of a thin-film stack, it has been found that the true dispersion relation of the multipolar edge modes deviates significantly from the SPP dispersion relation. Here, we developed a modified intuitive model that uses effective wavelength theory to accurately model this dispersion relation with significantly less computational overhead compared to full-wave electromagnetic simulations. However, for the case of thick nanodisks, this effective wavelength theory breaks down, and such intuitive models are no longer viable. We found that this is because some modes of the thick nanodisks carry a polar (i.e. out of the substrate plane, or along the electron beam direction) dependence and cannot be simply categorized as radial breathing modes or angular (azimuthal) multipolar edge modes. This polar dependence leads to radiative losses, motivating the use of simultaneous EELS and cathodoluminescence measurements when experimentally investigating the complex mode behavior of thick nanostructures.
Large volumes and spectroscopy of walking theories
Creators: name: Del Debbio, L.
name: Lucini, B.
name: Patella, A.
name: Pica, C.
name: Rago, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: A detailed investigation of finite size effects is performed for SU(2) gauge theory with two fermions in the adjoint representation, which previous lattice studies have shown to be inside the conformal window. The system is investigated with different spatial and temporal boundary conditions on lattices of various spatial and temporal extensions, for two values of the bare fermion mass representing a {\em heavy} and {\em light} fermion regime. Our study shows that the infinite volume limit of masses and decay constants in the mesonic sector is reached only when the mass of the pseudoscalar particle $M_\mathrm{PS}$ and the spatial lattice size $L$ satisfy the relation $L M_\mathrm{PS} \ge 15$. This bound, which is at least a factor of three higher than what observed in QCD, is a likely consequence of the different spectral signatures of the two theories, with the scalar isosinglet ($0^{++}$ glueball) being the lightest particle in our model. In addition to stressing the importance of simulating large lattice sizes, our analysis emphasises the need to understand quantitatively the {\em full} spectrum of the theory rather than just the spectrum in the mesonic isotriplet sector. While for the lightest fermion measuring masses from gluonic operators proves to be still challenging, reliable results for glueball states are obtained at the largest fermion mass and, in the mesonic sector, for both fermion masses. As a byproduct of our investigation, we perform a finite size scaling of the pseudoscalar mass and decay constant. The data presented in this work support the conformal behaviour of this theory with an anomalous dimension $γ_* \simeq 0.37$.
description: 17 pages
Intrinsic ultralow lattice thermal conductivity of the unfilled skutterudite FeSb$_3$
Creators: name: Fu, Yuhao
name: Singh, David J.
name: Li, Wu
name: Zhang, Lijun
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It has been generally accepted that unfilled skutterudites process high lattice thermal conductivity ($κ_{l}$) that can be efficiently reduced upon filling. Here by using first principles Boltzmann-Peierls transport calculations, we find pure skutterudite of FeSb$_3$ with no filler in fact has an intrinsic ultralow $κ_{l}$ smaller than that of CoSb$_3$ by one order of magnitude. The value is even smaller than those of most of the fully filled skutterudites. This finding means that with FeSb$_3$ as a reference, filling does not necessarily lower $κ_{l}$. The ultralow $κ_{l}$ of FeSb$_3$ is a consequence of much softened optical phonon branches associated with the weakly bonded Sb$_4$ rings. They overlap more with heat-carrying acoustic phonons and significantly increase the phase space for three-phonon anharmonic scattering processes. This provides an alternative non-filling related mechanism for lowering the $κ_{l}$ of skutterudites.
description: 6 pages, 5 figures + Supplementary information
Incremental Reconstruction of Urban Environments by Edge-Points Delaunay Triangulation
Creators: name: Romanoni, Andrea
name: Matteucci, Matteo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences
subject: I.4.5

description: Urban reconstruction from a video captured by a surveying vehicle constitutes a core module of automated mapping. When computational power represents a limited resource and, a detailed map is not the primary goal, the reconstruction can be performed incrementally, from a monocular video, carving a 3D Delaunay triangulation of sparse points; this allows online incremental mapping for tasks such as traversability analysis or obstacle avoidance. To exploit the sharp edges of urban landscape, we propose to use a Delaunay triangulation of Edge-Points, which are the 3D points corresponding to image edges. These points constrain the edges of the 3D Delaunay triangulation to real-world edges. Besides the use of the Edge-Points, a second contribution of this paper is the Inverse Cone Heuristic that preemptively avoids the creation of artifacts in the reconstructed manifold surface. We force the reconstruction of a manifold surface since it makes it possible to apply computer graphics or photometric refinement algorithms to the output mesh. We evaluated our approach on four real sequences of the public available KITTI dataset by comparing the incremental reconstruction against Velodyne measurements.
description: Intelligent Robots and Systems (IROS), 2015 IEEE/RSJ International Conference on (IROS) 2015. http://hdl.handle.net/11311/972021
Single-scan, dual-functional interferometer for fast spatiotemporal characterization of few-cycle pulses
Creators: name: Chen, Yifei
name: Huang, Zhiyuan
name: Wang, Ding
name: Zhao, Yu
name: Fu, Jianhua
name: Pang, Meng
name: Leng, Yuxin
name: Xu, Zhizhan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Accurate and fast characterization of spatiotemporal information of high-intensity, ultrashort pulses is crucial in the field of strong-field laser science and technology. While conventional self-referenced interferometers were widely used to retrieve the spatial profile of the relative spectral phase of pulses, additional measurements of temporal and spectral information at a particular position of the laser beam were, however, necessary to remove the indeterminacy, which increases the system complexity. Here we report an advanced, dual-functional interferometer that is able to reconstruct the complete spatiotemporal information of ultrashort pulses with a single scan of the interferometer arm. The set-up integrates an interferometric frequency-resolved optical gating (FROG) with a radial shearing Michelson interferometer. Trough scanning one arm of the interferometer, both cross-correlated FROG trace at the central part of the laser beam and delay-dependent interferograms of the entire laser profile are simultaneously obtained, allowing a fast 3-dimensional reconstruction of few-cycle laser pulses.
Exploring the Possibility of a Recovery of Physics Process Properties from a Neural Network Model
Creators: name: Jercic, Marko
name: Poljak, Nikola
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The application of machine learning methods to particle physics often doesn't provide enough understanding of the underlying physics. An interpretable model which provides a way to improve our knowledge of the mechanism governing a physical system directly from the data can be very useful. In this paper, we introduce a simple artificial physical generator based on the Quantum chromodynamical (QCD) fragmentation process. The data simulated from the generator are then passed to a neural network model which we base only on the partial knowledge of the generator. We aim to see if the interpretation of the generated data can provide the probability distributions of basic processes of such a physical system. This way, some of the information we omitted from the network model on purpose is recovered. We believe this approach can be beneficial in the analysis of real QCD processes.
Characteristics of proton velocity distribution functions in the near-lunar wake from Chandrayaan-1/SWIM observations
Creators: name: Dhanya, M B
name: Bhardwaj, Anil
name: Futaana, Yoshifumi
name: Barabash, Stas
name: Alok, Abhinaw
name: Wieser, Martin
name: Holmström, Mats
name: Wurz, Peter
Publisher: name: arXiv
Year: 2016
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Due to the high absorption of solar wind plasma on the lunar dayside, a large scale wake structure is formed downstream of the Moon. However, recent in-situ observations have revealed the presence of protons in the near-lunar wake (100 km to 200 km from the surface). The solar wind, either directly or after interaction with the lunar surface (including magnetic anomalies), is the source of these protons in the near-wake region. Using the entire data from the SWIM sensor of the SARA experiment onboard Chandrayaan-1, we analysed the velocity distribution of the protons observed in the near-lunar wake. The average velocity distribution functions, computed in the solar wind rest frame, were further separated based on the angle between the upstream solar wind velocity and the IMF. Several proton populations were identified from the velocity distribution and their possible entry mechanism were inferred based on the characteristics of the velocity distribution. These entry mechanisms include (i) diffusion of solar wind protons into the wake along IMF, (ii) the solar wind protons with finite gyro-radii that are aided by the wake boundary electric field, (iii) solar wind protons with gyro-radii larger than lunar radii from the tail of the solar wind velocity distribution, and (iv) scattering of solar wind protons from the dayside lunar surface or from magnetic anomalies. In order to gain more insight into the entry mechanisms associated with different populations, backtracing is carried out for each of these populations. For most of the populations, the source of the protons obtained from backtracing is found to be in agreement with that inferred from the velocity distribution. There are few populations that could not be explained by the known mechanisms and remain unknown.
description: 8 figures, paper accepted in Icarus (2016), http://dx.doi.org/10.1016/j.icarus.2016.01.032
THE SINGLE-USE PLASTIC WASTE PROBLEM IN BANGLADESH: FINDING SUSTAINABLE ALTERNATIVES IN LOCAL AND GLOBAL CONTEXT
Creators: name: Mehedi Hasan, Md.
name: Fayshal, Md. Atik
name: M Fairooz Adnan, H
name: Tasnuva Dhara, Farin
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 401102
subject: Environmentally sustainable engineering
classificationCode: 401103
subject: Global and planetary environmental engineering
classificationCode: 401106
subject: Waste management, reduction, reuse and recycling
classificationCode: 401104
subject: Health and ecological risk assessment

description: Plastic-derived products are now an essential commodity for a variety of applications. A massive amount of used plastic creates environmental hazards that endanger marine life, reduces soil fertility, and pollutes ground water. Single-use plastics (SUPs) are a significant source of this pollution, though SUPs were introduced into society to make our lives easier, due to their low post-use value, they are found as litter in a variety of environments, from urban to rural and remote, natural environments. Management of this huge plastic waste is difficult, especially for developing countries like Bangladesh for having lack of facilities, inadequate infrastructure development, and an insufficient budget. A set of sustainable plastic alternatives has been proposed, as well as recommendations that would emerge from the implementation of these strategies. The successful implementation of the alternative products proposed would improve the quality of plastic waste management. The purpose of this study is to provide direction for future research into the potential alternatives for SUPs pollution in surrounding ecosystems, remediation strategies and this can be a first step toward eliminating sups to effectively protect the environment.
Onset of three-dimensionality in rapidly rotating turbulent flows
Creators: name: Seshasayanan, Kannabiran
name: Gallet, Basile
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Turbulent flows driven by a vertically invariant body force were proven to become exactly two-dimensional above a critical rotation rate, using upper bound theory. This transition in dimensionality of a turbulent flow has key consequences for the energy dissipation rate. However, its location in parameter space is not provided by the bounding procedure. To determine this precise threshold between exactly 2D and partially 3D flows, we perform a linear stability analysis over a fully turbulent 2D base state. This requires integrating numerically a quasi-2D set of equations over thousands of turnover times, to accurately average the growth rate of the 3D perturbations over the statistics of the turbulent 2Dbase flow. We leverage the capabilities of modern GPUs to achieve this task, which allows us to investigate the parameter space up to Re = 10^5. At Reynolds numbers typical of 3D DNS and laboratory experiments, Re in [10^2, 5x10^3], the turbulent 2D flow becomes unstable to 3D motion through a centrifugal-type instability. However, at even higher Reynolds number another instability takes over. A candidate mechanism for the latter instability is the parametric excitation of inertial waves by the modulated 2D flow, a phenomenon that we illustrate with an oscillatory 2D Kolmogorov flow.
Alternative stable states, nonlinear behavior, and predictability of microbiome dynamics
Creators: name: Fujita, Hiroaki
name: Ushio, Masayuki
name: Suzuki, Kenta
name: Abe, Masato S.
name: Yamamichi, Masato
name: Iwayama, Koji
name: Hayashi, Ibuki
name: Fukushima, Keitaro
name: Fukuda, Shinji
name: Kiers, E. Toby
name: Toju, Hirokazu
Publisher: name: figshare
Year: 2022
Subjects: subject: 60202 Community Ecology (excl. Invasive Species Ecology)
subject: FOS: Biological sciences

description: Scripts and figures for the paper.
Joint DOD and DOA Estimation in Slow-Time MIMO Radar via PARAFAC Decomposition
Creators: name: Xu, Feng
name: Vorobyov, Sergiy A.
name: Yang, Xiaopeng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Information Theory (cs.IT)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: We develop a new tensor model for slow-time multiple-input multiple output (MIMO) radar and apply it for joint direction-of-departure (DOD) and direction-of-arrival (DOA) estimation. This tensor model aims to exploit the independence of phase modulation matrix and receive array in the received signal for slow-time MIMO radar. Such tensor can be decomposed into two tensors of different ranks, one of which has identical structure to that of the conventional tensor model for MIMO radar, and the other contains all phase modulation values used in the transmit array. We then develop a modification of the alternating least squares algorithm to enable parallel factor decomposition of tensors with extra constants. The Vandermonde structure of the transmit and receive steering matrices (if both arrays are uniform and linear) is then utilized to obtain angle estimates from factor matrices. The multi-linear structure of the received signal is maintained to take advantage of tensor-based angle estimation algorithms, while the shortage of samples in Doppler domain for slow-time MIMO radar is mitigated. As a result, the joint DOD and DOA estimation performance is improved as compared to existing angle estimation techniques for slow-time MIMO radar. Simulation results verify the effectiveness of the proposed method.
description: 6 double-column pages, 4 figures, submitted IEEE Signal Processing Letters
Unsupervised Deep Cross-modality Spectral Hashing
Creators: name: Hoang, Tuan
name: Do, Thanh-Toan
name: Nguyen, Tam V.
name: Cheung, Ngai-Man
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This paper presents a novel framework, namely Deep Cross-modality Spectral Hashing (DCSH), to tackle the unsupervised learning problem of binary hash codes for efficient cross-modal retrieval. The framework is a two-step hashing approach which decouples the optimization into (1) binary optimization and (2) hashing function learning. In the first step, we propose a novel spectral embedding-based algorithm to simultaneously learn single-modality and binary cross-modality representations. While the former is capable of well preserving the local structure of each modality, the latter reveals the hidden patterns from all modalities. In the second step, to learn mapping functions from informative data inputs (images and word embeddings) to binary codes obtained from the first step, we leverage the powerful CNN for images and propose a CNN-based deep architecture to learn text modality. Quantitative evaluations on three standard benchmark datasets demonstrate that the proposed DCSH method consistently outperforms other state-of-the-art methods.
description: Accepted to IEEE Transaction on Image Processing (TIP) Add Acknowledgement
AARP Survey of Small Business Owners in North Carolina
Creators: name: AARP
Publisher: name: Roper Center for Public Opinion Research
Year: 2023

description: Concern that employee(s) will not have enough money in retirement (1); currently saving for own retirement (1); offer employee retirement savings plan (11); concerns about operating/managing an employee retirement savings plan (3); main reason for offering employee retirement savings plan (1); concerns about non-savers being reliant on public assistance (1); support establishment of a state-private partnership in retirement savings program (5).
On the Resolution Probability of Conditional and Unconditional Maximum Likelihood DoA Estimation
Creators: name: Mestre, Xavier
name: Vallet, Pascal
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: After decades of research in Direction of Arrival (DoA) estimation, today Maximum Likelihood (ML) algorithms still provide the best performance in terms of resolution capabilities. At the cost of a multidimensional search, ML algorithms achieve a significant reduction of the outlier production mechanism in the threshold region, where the number of snapshots per antenna and/or the signal to noise ratio (SNR) are low. The objective of this paper is to characterize the resolution capabilities of ML algorithms in the threshold region. Both conditional and unconditional versions of the ML algorithms are investigated in the asymptotic regime where both the number of antennas and the number of snapshots are large but comparable in magnitude. By using random matrix theory techniques, the finite dimensional distributions of both cost functions are shown to be Gaussian distributed in this asymptotic regime, and a closed form expression of the corresponding asymptotic covariance matrices is provided. These results allow to characterize the asymptotic behavior of the resolution probability, which is defined as the probability that the cost function evaluated at the true DoAs is smaller than the values that it takes at the positions of the other asymptotic local minima.
Star formation in infrared dark clouds: Self-gravity and dynamics
Creators: name: Peretto, Nicolas
name: Gaudel, Mathilde
name: Louvet, Fabien
name: Fuller, Gary A.
name: Traficante, Alessio
name: Duarte-Cabral, Ana
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The role played by gravity in the transfer of interstellar matter from molecular cloud scales to protostellar scales is still highly debated. Only detailed studies on the kinematics of large samples of star-forming clouds will settle the issue. We present new IRAM 30m observations of a sample of 27 infrared dark clouds covering a large range of sizes, masses, and aspect ratios. Preliminary results suggest that gravity is regulating the dynamical evolution of these clouds on a couple of parsec scales.
description: 4 pages, 3 figures, to appear in proceedings of The 6th Zermatt ISM Symposium: Conditions and Impact of Star Formation From Lab to Space, eds. R. Simon, M. Rollig
Diapria mahensis Kieffer 1912
Creators: name: Notton, David G.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Chalcididae
Diapria
Diapria mahensis

description: Diapria mahensis Kieffer, 1912a: 71, 73.
Valid name
Trichopria mahensis (Kieffer, 1912).
Summary of types
Holotype ♀, BMNH number 9.701, by monotypy.
Primary type data
Diapria / mahensis/ J.J.Kieffer/ type; Mahe, ’08-9./ Seychelles Exp.; Type; Type/ H.T.; Holotypus ♀ / Diapria / mahensis Kieffer / L.Huggert-76; Trichopria ♀ / mahensis Kieff. / det. L.Huggert-76.
Type locality
Seychelles, Mahé.
Remarks
The holotype is mounted on a card with the left fore wing and left antenna on a microslide mounted on the same pin.
description: Published as part of Notton, David G., 2014, A catalogue of the types of Diapriinae (Hymenoptera, Diapriidae) at the Natural History Museum, London, pp. 1-123 in European Journal of Taxonomy 75 on page 78, DOI: 10.5852/ejt.2014.75, http://zenodo.org/record/3862773
On the near horizon rotating black hole geometries with NUT charges
Creators: name: Galajinsky, Anton
name: Orekhov, Kirill
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The near horizon geometries are usually constructed by implementing a specific limit to a given extreme black hole configuration. Their salient feature is that the isometry group includes the conformal subgroup SO(2,1). In this work, we turn the logic around and use the conformal invariants for constructing Ricci-flat metrics in d=4 and d=5 where the vacuum Einstein equations reduce to a coupled set of ordinary differential equations. In four dimensions the analysis can be carried out in full generality and the resulting metric describes the d=4 near horizon Kerr-NUT black hole. In five dimensions we choose a specific ansatz whose structure is similar to the d=5 near horizon Myers-Perry black hole. A Ricci-flat metric involving five arbitrary parameters is constructed. A particular member of this family, which is characterized by three parameters, seems to be a natural candidate to describe the d=5 near horizon Myers-Perry black hole with a NUT charge.
description: 12 pages
Spectral properties of transition metal pnictides and chalcogenides: angle-resolved photoemission spectroscopy and dynamical mean field theory
Creators: name: van Roekeghem, Ambroise
name: Richard, Pierre
name: Ding, Hong
name: Biermann, Silke
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Electronic Coulomb correlations lead to characteristic signatures in the spectroscopy of transition metal pnictides and chalcogenides: quasi-particle renormalizations, lifetime effects or incoherent badly metallic behavior above relatively low coherence temperatures are measures of many-body effects due to local Hubbard and Hund's couplings. We review and compare the results of angle-resolved photoemission spectroscopy experiments (ARPES) and of combined density functional dynamical mean field theory (DFT+DMFT) calculations. We emphasize the doping-dependence of the quasi-particle mass renormalization and coherence properties.
Generating Visually Aligned Sound from Videos
Creators: name: Chen, Peihao
name: Zhang, Yang
name: Tan, Mingkui
name: Xiao, Hongdong
name: Huang, Deng
name: Gan, Chuang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We focus on the task of generating sound from natural videos, and the sound should be both temporally and content-wise aligned with visual signals. This task is extremely challenging because some sounds generated \emph{outside} a camera can not be inferred from video content. The model may be forced to learn an incorrect mapping between visual content and these irrelevant sounds. To address this challenge, we propose a framework named REGNET. In this framework, we first extract appearance and motion features from video frames to better distinguish the object that emits sound from complex background information. We then introduce an innovative audio forwarding regularizer that directly considers the real sound as input and outputs bottlenecked sound features. Using both visual and bottlenecked sound features for sound prediction during training provides stronger supervision for the sound prediction. The audio forwarding regularizer can control the irrelevant sound component and thus prevent the model from learning an incorrect mapping between video frames and sound emitted by the object that is out of the screen. During testing, the audio forwarding regularizer is removed to ensure that REGNET can produce purely aligned sound only from visual features. Extensive evaluations based on Amazon Mechanical Turk demonstrate that our method significantly improves both temporal and content-wise alignment. Remarkably, our generated sound can fool the human with a 68.12% success rate. Code and pre-trained models are publicly available at https://github.com/PeihaoChen/regnet
description: Published in IEEE Transactions on Image Processing, 2020. Code, pre-trained models and demo video: https://github.com/PeihaoChen/regnet
Neutrale Lehrerinnen und Lehrer gibt es nicht – kontroverse Debatten als Lösung
Creators: name: Derrer, Michael
Publisher: name: Zenodo
Year: 2022

description: kein Abstract verfügbar
description: + ID der Publikation: hslu_91805 + Art des Beitrages: Publikumsmedien + Sprache: Deutsch + Letzte Aktualisierung: 2022-08-26 11:22:59
Mathematical modeling of interdigitated electrode arrays in finite electrochemical cells
Creators: name: Guajardo, Cristian
name: Ngamchana, Sirimarn
name: Surareungchai, Werasak
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Accurate theoretical results for interdigitated array of electrodes (IDAE) in semi-infinite cells can be found in the literature. However, these results are not always applicable when using finite cells. In this study, theoretical expressions for IDAE in a finite geometry cell are presented. At known current density, transient and steady state concentration profiles were obtained as well as the response time to a current step. Concerning the diffusion limited current, a lower bound was derived from the concentration profile and an upper bound was obtained from the limiting current of the semi-infinite case. The lower bound, which is valid when Kirchhoff's current law applies to the unit cell, can be useful to ensure a minimum current level during the design of the electrochemical cell. Finally, a criterion was developed defining when the behaviors of finite and semi-infinite cells are comparable. This allows to obtain higher current levels in finite cells, approaching that of the semi-infinite case. Examples with simulations were performed in order to illustrate and validate the theoretical results.
Radar Adaptive Detection Architectures for Heterogeneous Environments
Creators: name: Liu, Jun
name: Massaro, Davide
name: Orlando, Danilo
name: Farina, Alfonso
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, four adaptive radar architectures for target detection in heterogeneous Gaussian environments are devised. The first architecture relies on a cyclic optimization exploiting the Maximum Likelihood Approach in the original data domain, whereas the second detector is a function of transformed data which are normalized with respect to their energy and with the unknown parameters estimated through an Expectation-Maximization-based alternate procedure. The remaining two architectures are obtained by suitably combining the estimation procedures and the detector structures previously devised. Performance analysis, conducted on both simulated and measured data, highlights that the architecture working in the transformed domain guarantees the constant false alarm rate property with respect to the interference power variations and a limited detection loss with respect to the other detectors, whose detection thresholds nevertheless are very sensitive to the interference power.
Maternal health disparities in district Jhansi, Uttar Pradesh: a time series analysis using health management information system records
Creators: name: Gupta, Arjita
name: raj, Utsav
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 420699
subject: Public health not elsewhere classified

description: This study focused on investigating the status of maternal health in Jhansi District, Uttar Pradesh, India. A comprehensive analysis of data obtained from the health management information system (HMIS) spanning the period from 2010 to 2020. The findings of this study indicate notable fluctuations in the percentage of first-trimester ANC registrations, accompanied by an overall improvement in compliance with the recommended number of ANC checkups. In addition, the study identifies a growing inclination towards institutional deliveries and increased utilization of cesarean section (C-section) procedures. This study emphasizes the urgent and continued implementation of measures to enhance timely access to ANC services and to ensure the presence of skilled birth attendants during all childbirths. These insights are of substantial significance to policymakers and healthcare providers in their efforts to advance maternal healthcare services, diminish maternal mortality rates, and enhance women’s overall well-being in Jhansi District, Uttar Pradesh, India. The study recommends reinforcing ANC services, promoting collaborative initiatives to improve maternal health outcomes, and establishing clear guidelines and regular quality audits to ensure the appropriate utilization of C-sections.
Personal Identification Using Ultrawideband Radar Measurement of Walking and Sitting Motions and a Convolutional Neural Network
Creators: name: Sakamoto, Takuya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This study proposes a personal identification technique that applies machine learning with a two-layered convolutional neural network to spectrogram images obtained from radar echoes of a target person in motion. The walking and sitting motions of six participants were measured using an ultrawideband radar system. Time-frequency analysis was applied to the radar signal to generate spectrogram images containing the micro-Doppler components associated with limb movements. A convolutional neural network was trained using the spectrogram images with personal labels to achieve radar-based personal identification. The personal identification accuracies were evaluated experimentally to demonstrate the effectiveness of the proposed technique.
description: 9 pages, 7 figures, and 3 tables
Off-diagonal decay of toric Bergman kernels
Creators: name: Zelditch, Steve
Publisher: name: arXiv
Year: 2016
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: We study the off-diagonal decay of Bergman kernels $Π_{h^k}(z,w)$ and Berezin kernels $P_{h^k}(z,w)$ for ample invariant line bundles over compact toric projective \kahler manifolds of dimension $m$. When the metric is real analytic, $P_{h^k}(z,w) \simeq k^m \exp - k D(z,w)$ where $D(z,w)$ is the diastasis. When the metric is only $C^{\infty}$ this asymptotic cannot hold for all $(z,w)$ since the diastasis is not even defined for all $(z,w)$ close to the diagonal. We prove that for general $C^{\infty}$ metrics, $P_{h^k}(z,w) \simeq k^m \exp - k D(z,w)$ as long as $w$ lies on the ${\mathbb R}_+^m$-orbit of $z$, and for general $(z,w)$, $\limsup_{k \to \infty} \frac{1}{k} \log P_{h^k}(z,w) \leq - D(z^*,w^*)$ where $D(z, w^*)$ is the diastasis between $z$ and the translate of $w$ by $(S^1)^m$ to the ${\mathbb R}_+^m$ orbit of $z$, complementary to Mike Christ's negative results (arXiv:1308.5644).
title: Элементы имитационного моделирования в вопросах оптимизации дорожного движения
title: Elements of Simulation Modeling in Issues of Traffic Optimization
Creators: name: Веремчук, Наталья Сергеевна
Publisher: name: Издательский центр СурГУ
Year: 2022

description: Представлена разработка методами агентного и дискретно-событийного моделирования имитационной модели элемента дорожной сети, состоящего из двух смежных перекрестков
города Омска, для анализа движения транспортных средств, прогнозирования транспортных потоков
и разработки мер по оптимизации дорожного трафика. По результатам вычислительных экспериментов
исследования транспортных потоков на выбранном участке дорожной сети с целью улучшения ее
функционирования предложена оптимальная схема проезда перекрестков транспортными средствами
за счет изменения длительности фаз светофоров.
description: The study presents the development of a simulation model for an element of the road network
that consists of two adjacent intersections in Omsk using agent-based and discrete-event modeling in order to
analyze traffic, forecast traffic, and propose traffic optimization measures. Based on the traffic calculations
aimed at improving functionality of the selected element of the road network, an efficient scheme for traffic
flows is proposed by changing the duration of traffic light phases.
Rondo brillante : [für Sologitarre]
Rondongino brillante
Creators: name: Giuliani, Mauro
Publisher: name: [s.n.]
Year: 1817

description: 2 Exemplare vom gleichen Schreiber, möglicherweise eine die Reinschrift der anderen.
description: M. Giuliani
description: Gedruckt als "Rondongino brillante" (Leipzig : Peters, ca. 1817) (WoO,G-2). Andere Ausgabe für zwei Gitarren: "Tre rondó", op. 66, Nr. 1 (Wien : Steiner & Co., ca. 1815)
description: Mit Bleistift ist der Titel notiert als "Rondo brillant für 2 Guitarren". Diese Ausgabe ist aber für Sologitarre; der Notentext entspricht dem der Peters-Ausgabe.
description: Geschenk 1941 *41,ab2 Öffentliche Bibliothek der Universität Basel
description: Verzeichnung=Description=Inventaire 2009 Übernahme Rekatalogis. AK UB durch Medea 2002-2005
description: Verzeichnung=Description=Inventaire Dezember 2018 HAN-Katalogisierungsregeln
Sonnenfleckenzeichnung Nr. 299.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 16.12.2006, 10:30, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2006

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 127.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 31.05.2006, 08:00, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2006

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 51.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 02.03.2006, 08:30, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2006

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 271.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.11.2006, 08:30, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2006

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sharp L1 Inequalities for Sup-Convolution
Creators: name: van Hintum, Peter
name: Spink, Hunter
name: Tiba, Marius
Publisher: name: arXiv
Year: 2020
Subjects: subject: Functional Analysis (math.FA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52A40 (Primary), 49Q20 (Secondary)

description: Given a compact convex domain $C\subset \mathbb{R}^k$ and bounded measurable functions $f_1,\ldots,f_n:C\to \mathbb{R}$, define the sup-convolution $(f_1\ast \ldots \ast f_n)(z)$ to be the supremum average value of $f_1(x_1),\ldots,f_n(x_n)$ over all $x_1,\ldots,x_n\in C$ which average to $z$. Continuing the study by Figalli and Jerison and the present authors of linear stability for the Brunn-Minkowski inequality with equal sets, for $k\le 3$ we find the optimal constants $c_{k,n}$ such that $$\int_C f^{\ast n}(x)-f(x) dx \ge c_{k,n}\int_C\text{co}(f)(x)-f(x) dx$$ where $\text{co}(f)$ is the upper convex hull of $f$. Additionally, we show $c_{k,n}=1-O(\frac{1}{n})$ for fixed $k$ and prove an analogous optimal inequality for two distinct functions. The key geometric insight is a decomposition of polytopal approximations of $C$ into hypersimplices according to the geometry of the set of points where $\text{co}(f)$ is close to $f$.
description: 16 pages
Effective discrimination of chiral molecules in a cavity
Creators: name: Kang, Yi-Hao
name: Shi, Zhi-Cheng
name: Song, Jie
name: Xia, Yan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a scheme to realize precise discrimination of chiral molecules in a cavity. Assisted by additional laser pulses, cavity fields can evolve to different coherence states with contrary-sign displacements according to the handedness of molecules. Consequently, the handedness of molecules can be read out with homodyne measurement on the cavity, and the successful probability is nearly unity without very strong cavity fields. Numerical results show that the scheme is insensitive to errors, noise and decoherence. Therefore, the scheme may provide helpful perspectives for accurate discrimination of chiral molecules.
Atomic Resolution Imaging of CrBr$_{3}$ using Adhesion-Enhanced Grids
Creators: name: Hamer, Matthew J.
name: Hopkinson, David G.
name: Clark, Nick
name: Zhou, Mingwei
name: Wang, Wendong
name: Zou, Yichao
name: Kelly, Daniel J.
name: Bointon, Thomas H.
name: Haigh, Sarah J.
name: Gorbachev, Roman V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Suspended specimens of 2D crystals and their heterostructures are required for a range of studies including transmission electron microscopy (TEM), optical transmission experiments and nanomechanical testing. However, investigating the properties of laterally small 2D crystal specimens, including twisted bilayers and air sensitive materials, has been held back by the difficulty of fabricating the necessary clean suspended samples. Here we present a scalable solution which allows clean free-standing specimens to be realized with 100% yield by dry-stamping atomically thin 2D stacks onto a specially developed adhesion-enhanced support grid. Using this new capability, we demonstrate atomic resolution imaging of defect structures in atomically thin CrBr3, a novel magnetic material which degrades in ambient conditions.
description: 17 pages (+ references), 3 Figures, 1 Table