cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Index Theory of Chiral Unitaries and Split-Step Quantum Walks
Creators: name: Bourne, Chris
Publisher: name: arXiv
Year: 2022
Subjects: subject: Operator Algebras (math.OA)
subject: Mathematical Physics (math-ph)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Building from work by Cedzich et al. and Suzuki et al., we consider topological and index-theoretic properties of chiral unitaries, which are an abstraction of the time evolution of a chiral-symmetric self-adjoint operator. Split-step quantum walks provide a rich class of examples. We use the index of a pair of projections and the Cayley transform to define topological indices for chiral unitaries on both Hilbert spaces and Hilbert $C^*$-modules. In the case of the discrete time evolution of a Hamiltonian-like operator, we relate the index for chiral unitaries to the index of the Hamiltonian. We also prove a double-sided winding number formula for anisotropic split-step quantum walks on Hilbert $C^*$-modules, extending a result by Matsuzawa.
Improving Food Detection For Images From a Wearable Egocentric Camera
Creators: name: Han, Yue
name: Yarlagadda, Sri Kalyan
name: Ghosh, Tonmoy
name: Zhu, Fengqing
name: Sazonov, Edward
name: Delp, Edward J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Diet is an important aspect of our health. Good dietary habits can contribute to the prevention of many diseases and improve the overall quality of life. To better understand the relationship between diet and health, image-based dietary assessment systems have been developed to collect dietary information. We introduce the Automatic Ingestion Monitor (AIM), a device that can be attached to one's eye glasses. It provides an automated hands-free approach to capture eating scene images. While AIM has several advantages, images captured by the AIM are sometimes blurry. Blurry images can significantly degrade the performance of food image analysis such as food detection. In this paper, we propose an approach to pre-process images collected by the AIM imaging sensor by rejecting extremely blurry images to improve the performance of food detection.
description: 6 pages, 6 figures, Conference Paper for Imaging and Multimedia Analytics in a Web and Mobile World Conference, IS&T Electronic Imaging Symposium, Burlingame, CA (Virtual), January, 2021
Discrete solitons in waveguide arrays with long-range linearly coupled effect
Creators: name: Mai, Zhijie
name: Fu, Shenhe
name: Wu, Jianxiong
name: Li, Yongyao
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study the influences to the discrete soliton (DS) by introducing linearly long-range nonlocal interactions, which give rise to the off-diagonal elements of the linearly coupled matrix in the discrete nonlinear schrodinger equation to be filled by non-zero terms. Theoretical analysis and numerical simulations find that the DS under this circumstance can exhibit strong digital effects: the fundamental DS is a narrow one, which occupies nearly only one waveguide, the dipole and double-monopole solitons, which occupy two waveguides, can be found in self-focusing and -defocusing nonlinearities, respectively. Stable flat-top solitons and their stagger counterparts, which occupy a controllable number of waveguides, can also be obtained through this system. Such digital properties may give rise to additional data processing applications and have potential in fabricating digital optical devices in all-optical networks.
description: 8 pages, and 6 figures
Two Young Planetary Systems around Field Stars with Ages between 20 and 320 Myr from TESS
Creators: name: Stockdale, C.
name: Bieryla, A.
name: Brasseur, C.E.
name: Berlind, P.
name: Furlan, E.
name: Collins, K.I.
name: Law, N.
name: Tan, T.-G.
name: Howell, S.B.
name: Buchhave, L.A.
name: Wohler, B.
name: Carter, B.
name: Zhou, G.
name: Latham, D.W.
name: Charbonneau, D.
name: Hellier, C.
name: Torres, G.
name: Douglas, S.T.
name: Mireles, I.
name: Irwin, J.
name: Esquerdo, G.A.
name: Rowden, P.
name: Scott, N.J.
name: Collins, K.A.
name: Bouma, L.G.
name: Jensen, E.L.N.
name: Ziegler, C.
name: Calkins, M.L.
name: Khan, L.
name: Landrigan, A.
name: Yahalomi, D.A.
name: West, R.G.
name: Vanderburg, A.M.
name: Rodriguez, J.E.
name: Daylan, T.
name: Vanderspek, R.
name: Ricker, G.
name: Matson, R.A.
name: Winn, J.N.
name: Kielkopf, J.F.
name: Colón, K.D.
name: Quinn, S.N.
name: White, R.J.
name: Hart, R.
name: Mann, A.W.
name: Huang, C.X.
name: Anderson, D.R.
name: Seager, S.
name: Jenkins, J.M.
Publisher: name: IOP Publishing Ltd
Year: 2021

description: Planets around young stars trace the early evolution of planetary systems. We report the discovery and validation of two planetary systems with ages <∼300Myr from observations by the Transiting Exoplanet Survey Satellite (TESS). The 40 V320 Myr old G star TOI-251 hosts a 2.74+0.18-0.18 mini-Neptune with a 4.94 day period. The 20-160 Myr old K star TOI-942 hosts a system of inflated Neptune-sized planets, with TOI-942b orbiting in a period of 4.32 days with a radius of 4.81+0.20-0.20 and TOI-942c orbiting in a period of 10.16 days with a radius of 5.79-0.18+0.19 Though we cannot place either host star into a known stellar association or cluster, we can estimate their ages via their photometric and spectroscopic properties. Both stars exhibit significant photometric variability due to spot modulation, with measured rotation periods of .3.5 days. These stars also exhibit significant chromospheric activity, with age estimates from the chromospheric calcium emission lines and X-ray fluxes matching that estimated from gyrochronology. Both stars also exhibit significant lithium absorption, similar in equivalent width to well-characterized young cluster members. TESS has the potential to deliver a population of young planet-bearing field stars, contributing significantly to tracing the properties of planets as a function of their age.
A Survey of Scheduling Algorithms for the Time-Aware Shaper in Time-Sensitive Networking (TSN)
Creators: name: Stüber, Thomas
name: Osswald, Lukas
name: Lindner, Steffen
name: Menth, Michael
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Time-Sensitive Networking (TSN) is an enhancement of Ethernet which provides various mechanisms for real-time communication. Time-triggered (TT) traffic represents periodic data streams with strict real-time requirements. Amongst others, TSN supports scheduled transmission of TT streams, i.e., the transmission of their frames by end stations is coordinated in such a way that none or very little queuing delay occurs in intermediate nodes. TSN supports multiple priority queues per egress port. The TAS uses so-called gates to explicitly allow and block these queues for transmission on a short periodic timescale. The TAS is utilized to protect scheduled traffic from other traffic to minimize its queuing delay. In this work, we consider scheduling in TSN which comprises the computation of periodic transmission instants at end stations and the periodic opening and closing of queue gates. In this paper, we first give a brief overview of TSN features and standards. We state the TSN scheduling problem and explain common extensions which also include optimization problems. We review scheduling and optimization methods that have been used in this context. Then, the contribution of currently available research work is surveyed. We extract and compile optimization objectives, solved problem instances, and evaluation results. Research domains are identified, and specific contributions are analyzed. Finally, we discuss potential research directions and open problems.
description: 38 pages, 19 figures, 11 tables 140 references
Fast-BEV: Towards Real-time On-vehicle Bird's-Eye View Perception
Creators: name: Huang, Bin
name: Li, Yangguang
name: Xie, Enze
name: Liang, Feng
name: Wang, Luya
name: Shen, Mingzhu
name: Liu, Fenggang
name: Wang, Tianqi
name: Luo, Ping
name: Shao, Jing
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Recently, the pure camera-based Bird's-Eye-View (BEV) perception removes expensive Lidar sensors, making it a feasible solution for economical autonomous driving. However, most existing BEV solutions either suffer from modest performance or require considerable resources to execute on-vehicle inference. This paper proposes a simple yet effective framework, termed Fast-BEV, which is capable of performing real-time BEV perception on the on-vehicle chips. Towards this goal, we first empirically find that the BEV representation can be sufficiently powerful without expensive view transformation or depth representation. Starting from M2BEV baseline, we further introduce (1) a strong data augmentation strategy for both image and BEV space to avoid over-fitting (2) a multi-frame feature fusion mechanism to leverage the temporal information (3) an optimized deployment-friendly view transformation to speed up the inference. Through experiments, we show Fast-BEV model family achieves considerable accuracy and efficiency on edge. In particular, our M1 model (R18@256x704) can run over 50FPS on the Tesla T4 platform, with 47.0% NDS on the nuScenes validation set. Our largest model (R101@900x1600) establishes a new state-of-the-art 53.5% NDS on the nuScenes validation set. The code is released at: https://github.com/Sense-GVT/Fast-BEV.
description: Accepted by NeurIPS2022_ML4AD on October 22, 2022
Theory and applications of the Vlasov equation
Creators: name: Pegoraro, F.
name: Califano, F.
name: Manfredi, G.
name: Morrison, P. J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Forty articles have been recently published in EPJD as contributions to the topical issue "Theory and applications of the Vlasov equation". The aim of this topical issue was to provide a forum for the presentation of a broad variety of scientific results involving the Vlasov equation. In this editorial, after some introductory notes, a brief account is given of the main points addressed in these papers and of the perspectives they open.
description: Editorial
iMaNGA: mock MaNGA galaxies based on IllustrisTNG and MaStar SSPs -- II. The catalogue
Creators: name: Nanni, Lorenza
name: Thomas, Daniel
name: Trayford, James
name: Maraston, Claudia
name: Neumann, Justus
name: Law, David R.
name: Hill, Lewis
name: Pillepich, Annalisa
name: Yan, Renbin
name: Chen, Yanping
name: Lazarz, Dan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Strengthening the synergy between simulations and observations is essential to test galaxy formation and evolution theories. To achieve this goal, in the first paper of this series, we presented a method to generate mock SDSS-IV/MaNGA integral-field spectroscopic galaxy observations from cosmological simulations. In this second paper, we build the iMaNGA catalogue consisting of $\sim$1,000 unique galaxies from the TNG50 cosmological simulations, selected to mimic the SDSS-IV/MaNGA-Primary sample selection. Here we present and discuss the iMaNGA sample and its comparison to the MaNGA Primary catalogue. The iMaNGA sample well recovers the MaNGA-Primary sample in terms of stellar mass vs angular size relation and spatial resolution. The Sérsic index vs angular size relation, instead, is not reproduced well by the simulations, mostly because of a paucity of high-mass elliptical galaxies in TNG50. We also investigate our ability to recover the galaxy kinematics and stellar population properties with full-spectral fitting. We demonstrate that 'intrinsic' and `recovered' stellar kinematics, stellar ages and metallicities are consistent, with residuals compatible with zero within 1$-σ$. Also`intrinsic' and `recovered' star formation histories display a great resemblance. We conclude that our mock generation and spectral fitting processes do not distort the `intrinsic' galaxy properties. Therefore, in the third paper of this series, we can meaningfully test the cosmological simulations, comparing the stellar population properties and kinematics of the iMaNGA mock galaxies and the MaNGA observational results.
description: Published on MNRAS: 03 May 2023 https://doi.org/10.1093/mnras/stad1337
V.E.P 2018
Creators: name: Cayabyab, Karlo
Publisher: name: Figshare
Year: 2018
Subjects: subject: 100699 Computer Hardware not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 109999 Technology not elsewhere classified
subject: FOS: Other engineering and technologies
subject: 120307 Visual Communication Design (incl. Graphic Design)
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 120106 Interior Design
subject: FOS: Civil engineering
subject: 120101 Architectural Design

description: IN A WORLD OF ONLINE LEARNING, STUDENTS CAN CONNECT AND
COLLABORATE WITH EACH OTHER AND THEIR LECTURERS. THERE ARE LIMITATIONS IN SOME
DEGREES BUT THE IMAGINATION NEVER ENDS.

THERE IS A POWERFUL FORCE THAT EXCEEDS THE PHYSICAL REALM; IDEAS AND CONCEPTS EVOLVE, BONDS ARE FORMED AND COMMUNITIES ARE ESTABLISHED. ALL EXECUTED AND DRIVEN BY THE ONLINE ENVIRONMENT.

CONNECTEDNESS IS INTEGRAL TO ALL TYPES OF CULTURES AND COMMUNITIES, BOTH IN THE PHYSICAL AND DIGITAL WORLD.
Search for Higgs boson and observation of Z boson through their decay into a charm quark-antiquark pair in boosted topologies in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for the standard model (SM) Higgs boson (H) produced with transverse momentum greater than 450 GeV and decaying to a charm quark-antiquark ($\mathrm{c\bar{c}}$) pair is presented. The search is performed using proton-proton collision data collected at $\sqrt{s}$ = 13 TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 138 fb$^{-1}$. Boosted H $\to$ $\mathrm{c\bar{c}}$ decay products are reconstructed as a single large-radius jet and identified using a deep neural network charm tagging technique. The method is validated by measuring the Z $\to$ $\mathrm{c\bar{c}}$ decay process, which is observed in association with jets at high $p_\mathrm{T}$ for the first time with a signal strength of 1.00 $_{-0.14}^{+0.17}$ (syst) $\pm$ 0.08 (theo) $\pm$ 0.06 (stat), defined as the ratio of the observed process rate to the standard model expectation. The observed (expected) upper limit on $σ$(H) $\mathcal{B}$(H $\to$ $\mathrm{c\bar{c}}$) is set at 47 (39) times the SM prediction at 95% confidence level.
description: Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-21-012 (CMS Public Pages)
The Cosmic Equation of State
Creators: name: Melia, Fulvio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The cosmic spacetime is often described in terms of the FRW metric, though the adoption of this elegant and convenient solution to Einstein's equations does not tell us much about the equation of state, p=w rho, in terms of the total energy density rho and pressure p of the cosmic fluid. LCDM and the R_h=ct Universe are both FRW cosmologies that partition rho into (at least) three components, matter rho_m, radiation rho_r, and a poorly understood dark energy rho_de, though the latter goes one step further by also invoking the constraint w=-1/3. This condition is required by the simultaneous application of the Cosmological principle and Weyl's postulate. Model selection tools in one-on-one comparisons favor R_h=ct with a likelihood of ~90% versus only ~10% for LCDM. Nonetheless, the predictions of LCDM often come quite close to those of R_h=ct, suggesting that its parameters are optimized to mimic the w=-1/3 equation of state. In this paper, we demonstrate that the equation of state in R_h=ct helps us to understand why the optimized fraction Omega_m=rho_m/rho in LCDM must be ~0.27, an otherwise seemingly random variable. We show that when one forces LCDM to satisfy the equation of state w=(rho_r/3-rho_de)/rho, the value of the Hubble radius today, c/H_0, can equal its measured value ct_0 only with Omega_m~0.27 when the equation of state for dark energy is w_de=-1. This peculiar value of Omega_m therefore appears to be a direct consequence of trying to fit the data with the equation of state w=(rho_r/3-rho_de)/rho in a Universe whose principal constraint is instead R_h=ct or, equivalently, w=-1/3.
description: 7 Pages, 3 Figures. Accepted for publication in Astrophysics and Space Science
Radiative emission of neutrino pair free of quantum electrodynamic backgrounds
Creators: name: Yoshimura, M.
name: Sasao, N.
name: Tanaka, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A scheme of quantum electrodynamic (QED) background-free radiative emission of neutrino pair (RENP) is proposed in order to achieve precision determination of neutrino properties so far not accessible. The important point for the background rejection is the fact that the dispersion relation between wave vector along propagating direction in wave guide (and in a photonic-crystal type fiber) and frequency is modified by a discretized non-vanishing effective mass. This effective mass acts as a cutoff of allowed frequencies, and one may select the RENP photon energy region free of all macro-coherently amplified QED processes by choosing the cutoff larger than the mass of neutrinos.
description: 13 pages, 7 figures
title: Making Salt
Creators: name: Hunter, Lynn Dean
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1992

description: Every day, when reading the paper or watching the six o'clock news, women and men living in the post-World War II era must confront existential issues of powerlessness, meaninglessness, freedom, and death.

Nevertheless, we persist in seeking order, beauty, justice, and eternity.

The seven stories in this collection portray characters caught in conflict between their desires for an ideal world and the poignantly tangible absence thereof.
Quantum NETwork: from theory to practice
Creators: name: Fang, Kun
name: Zhao, Jingtian
name: Li, Xiufan
name: Li, Yifei
name: Duan, Runyao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The quantum internet is envisioned as the ultimate stage of the quantum revolution, which surpasses its classical counterpart in various aspects, such as the efficiency of data transmission, the security of network services, and the capability of information processing. Given its disruptive impact on the national security and the digital economy, a global race to build scalable quantum networks has already begun. With the joint effort of national governments, industrial participants and research institutes, the development of quantum networks has advanced rapidly in recent years, bringing the first primitive quantum networks within reach. In this work, we aim to provide an up-to-date review of the field of quantum networks from both theoretical and experimental perspectives, contributing to a better understanding of the building blocks required for the establishment of a global quantum internet. We also introduce a newly developed quantum network toolkit to facilitate the exploration and evaluation of innovative ideas. Particularly, it provides dual quantum computing engines, supporting simulations in both the quantum circuit and measurement-based models. It also includes a compilation scheme for mapping quantum network protocols onto quantum circuits, enabling their emulations on real-world quantum hardware devices. We showcase the power of this toolkit with several featured demonstrations, including a simulation of the Micius quantum satellite experiment, a testing of a four-layer quantum network architecture with resource management, and a quantum emulation of the CHSH game. We hope this work can give a better understanding of the state-of-the-art development of quantum networks and provide the necessary tools to make further contributions along the way.
description: 36 pages, 33 figures; comments are welcome
AN OVERVIEW OF BENEFITS AND SIDE EFFECTS OF CARBOXYMALTOSE INJECTION
Creators: name: Nabil Saad Al-saedi, Badr Moriziq Al-solami, Mohamed Abdullah Garhady, Khairia Mohamed Kamli, Maha Hassan Hassan Ogdi, Mohammed Omar Al-zahrani, Habeeb Zaid Al-amri, Waheed mohamedrashad  Felimban, Abdullah Hasan Al-homrani, Ahmed Hamed Al-majnoni, Fahad Muidh Al-otaibi
Publisher: name: Zenodo
Year: 2023

description: Iron deficiency is widespread in many medical problems. Ferric carboxymaltose is a new stable iron preparation that can be given in single infusions over short time intervals. Between July and October 2022, a narrative literature review was conducted for published RCTs on the usage of ferric carboxymaltose and its benefits and drawbacks. All intravenous iron preparations now available appear to be safe and effective, although ferric carboxymaltose appears to provide a better and faster correction of haemoglobin and serum ferritin levels in iron-deficient patients.
Statistical mechanics of continual learning: variational principle and mean-field potential
Creators: name: Li, Chan
name: Huang, Zhenye
name: Zou, Wenxuan
name: Huang, Haiping
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Machine Learning (cs.LG)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: An obstacle to artificial general intelligence is set by continual learning of multiple tasks of different nature. Recently, various heuristic tricks, both from machine learning and from neuroscience angles, were proposed, but they lack a unified theory ground. Here, we focus on continual learning in single-layered and multi-layered neural networks of binary weights. A variational Bayesian learning setting is thus proposed, where the neural networks are trained in a field-space, rather than gradient-ill-defined discrete-weight space, and furthermore, weight uncertainty is naturally incorporated, and modulates synaptic resources among tasks. From a physics perspective, we translate the variational continual learning into Franz-Parisi thermodynamic potential framework, where previous task knowledge acts as a prior and a reference as well. We thus interpret the continual learning of the binary perceptron in a teacher-student setting as a Franz-Parisi potential computation. The learning performance can then be analytically studied with mean-field order parameters, whose predictions coincide with numerical experiments using stochastic gradient descent methods. Based on the variational principle and Gaussian field approximation of internal preactivations in hidden layers, we also derive the learning algorithm considering weight uncertainty, which solves the continual learning with binary weights using multi-layered neural networks, and performs better than the currently available metaplasticity algorithm. Our proposed principled frameworks also connect to elastic weight consolidation, weight-uncertainty modulated learning, and neuroscience inspired metaplasticity, providing a theory-grounded method for the real-world multi-task learning with deep networks.
description: 48 pages, 8 figures, final version to Phys Rev E
TOI 122b and TOI 237b: Two Small Warm Planets Orbiting Inactive M Dwarfs Found by TESS
Creators: name: Ciardi, D.R.
name: Gillon, M.
name: Barkaoui, K.
name: Newton, E.
name: Jehin, E.
name: Berta-Thompson, Z.K.
name: Law, N.
name: Collins, K.I.
name: Winn, J.N.
name: Vanderspek, R.
name: Rinehart, S.A.
name: Feinstein, A.D.
name: Rojas-Ayala, B.
name: Ting, E.B.
name: Briceo, C.
name: Osborn, H.P.
name: Ricker, G.R.
name: Collins, K.A.
name: Latham, D.W.
name: Christiansen, J.
name: Ziegler, C.
name: Pozuelos, F.J.
name: Jenkins, J.M.
name: Libby-Roberts, J.E.
name: Montet, B.T.
name: Tofflemire, B.M.
name: Silverstein, M.L.
name: Jensen, E.L.N.
name: Mallia, F.
name: Kielkopf, J.F.
name: Seager, S.
name: Twicken, J.D.
name: Conti, D.
name: Waalkes, W.C.
name: Levine, A.M.
name: Goeke, R.F.
name: Relles, H.
name: Mann, A.W.
name: Isopi, G.
name: Gan, T.
name: Rose, M.E.
name: Bean, J.L.
Publisher: name: IOP Publishing Ltd
Year: 2021

description: We report the discovery and validation of TOI 122b and TOI 237b, two warm planets transiting inactive M dwarfs observed by the Transiting Exoplanet Survey Satellite (TESS). Our analysis shows that TOI 122b has a radius of 2.72 ± 0.18 R ⊕ and receives 8.8 ± 1.0 times Earth's bolometric insolation, and TOI 237b has a radius of 1.44±0.12 R ⊕ and receives 3.7 ± 0.5 times Earth's insolation, straddling the 6.7 Earth insolation that Mercury receives from the Sun. This makes these two of the cooler planets yet discovered by TESS, even on their 5.08 and 5.43 day orbits. Together, they span the small-planet radius valley, providing useful laboratories for exploring volatile evolution around M dwarfs. Their relatively nearby distances (62.23 ± 0.21 pc and 38.11 ± 0.23 pc, respectively) make them potentially feasible targets for future radial velocity follow-up and atmospheric characterization, although such observations may require substantial investments of time on large telescopes.
Nonclassical correlated optical multistability at low photon level for cavity electromagnetically induced transparency
Creators: name: Tang, Jing
name: Deng, Yuangang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the nonequilibrium dynamic behaviors in a driven-dissipative single-atom cavity electromagnetically induced transparency. The optical bistability and multistability beyond a Kerr nonlinearity are observed utilizing the optical Stark shift induced strong nonlinearity. We show that the nonequilibrium dynamical phase transition between bistability and multistability is highly tunable by the system parameters in a large parameter region. The first-order dissipative optical bistability (multistability) always corresponds to the photon-bunching quantum statistics, which indicates that the quantum fluctuations and correlations play important roles in nonequilibrium dynamics.Interestingly, bistability and multistability with photon-bunching quantum statistics occurring at extremely low steady-state cavity photon number are observed, even under a very strong cavity driven field. Furthermore, we demonstrate that the unique cavity steady-state solution of the full quantum calculation is excellently consistent with the lowest solution based on the semiclassical mean-field approach in bistability and multistability regimes when the cavity photon number is much less than unity, albeit these nonclassical quantum states should possess strong quantum fluctuations in this parameter regime. Our results pave the way to exploring nonclassical correlated optical multistability in quantum regime, which may bring exciting opportunities for potential applications from quantum information processing to quantum metrology.
description: 17 pages, 5 figures; To appear in New J. Phys
Experiências dos operacionais húngaros em Angola depoimentos
Creators: name: János, Besenyő
name: Búr Gábor
name: Horváth Sándor
name: Rákóczi István
Publisher: name: Figshare
Year: 2018
Subjects: subject: 160604 Defence Studies
subject: FOS: Political science
subject: 210399 Historical Studies not elsewhere classified
subject: FOS: History and archaeology
subject: 140203 Economic History
subject: FOS: Economics and business
subject: 210310 Middle Eastern and African History

description: Nas missões da ONU de manutenção de paz em Angola, entre 1991 e 1999, prestaram serviço militares e polícias húngaros. Para além de testemunhos pessoais, o presente livro oferece um relance sobre a história de Angola e sobrea complexidade étnico-religiosa da sua sociedade e cultura, incluindo também os aspectos económicos e geopolíticos da actualidade neste país.Os militares e policiais húngaros que chegaram a Angola cumpriram principalmente tarefas de verifi cação e de observação da paz, e fi zeram-no num contexto assaz puritano e muito diferente quando comparado com as condições húngaras, no que diz respeito ao clima e higiene. Para estes operacionais, o perigo maior, além dos provenientes do próprio exercício da sua atividadede manutenção de paz, foram as doenças contagiosas e tropicais, como a malária, a varíola, a disenteria ou o tifo.É muito provável que a maioria dos leitores nunca tenha ouvido falar sobre as diversas relações que uniram Angola e Hungria, países fi sicamente tão distantes.A título de exemplo: Magyar László, chegado ao território da actual Angola em 1848, como enviado do sultão de Kalabar, acaba por casar um ano depois com uma das fi lhas do rei do Bié. O diário que escreveu informa-nos detalhadamente sobre as suas viagens de exploração e, em reconhecimento do alto valor das suas observações, em 1858 este ‘descobridor’ húngaro foi eleito membro correspondente da Academia das Ciências Húngaras. Desafortunadamente,a maioria dos seus papéis perdeu-se num incêndio em Benguela, pelo que a sua obra persiste apenas de forma fragmentária.Os autores do presente volume foram entrevistando e recolhendo as memórias ainda vivas dos observadores húngaros da ONU, cujas experiências pessoaisem Angola – relatadas nas páginas seguintes – enriquecem os nossos conhecimentos. Ao informar-nos do quotidiano duma missão, os seus valiosos depoimentos tornam próximo e humano o mundo tão distante em quetrabalharam.Constitui um motivo de alegria especial este excelente livro – fruto da colaboração do Centro de Investigação Científi ca do Estado Maior do Exército Húngaro, da Embaixada de Angola e da Universidade ELTE de Budapeste ser agora publicado em português, reforçando as relações de amizade que unem os dois povos. Sinto-me satisfeito e orgulhoso pelo empenho dos soldados húngaros, que souberam contribuir para o estabelecimento da estabilidadee da paz angolanas.
Aluminene as Highly Hole Doped Graphene
Creators: name: Kamal, C.
name: Chakrabarti, Aparna
name: Ezawa, Motohiko
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Monolayer structures made up of purely one kind of atoms are fascinating. Many kinds of honeycomb systems including carbon, silicon, germanium, tin, phosphorus and arsenic have been shown to be stable. However, so far the structures are restricted to group IV and V elements. In this letter, we systematically investigate the stability of monolayer structures made up of aluminium, in four different geometric configurations (planar, buckled, puckered and triangular), by employing density functional theory based electronic structure calculation. Our results on cohesive energy and phonon dispersion predict that only planar honeycomb structure made up of aluminium is stable. We call it "aluminene" according to the standard naming convention. It is a metal. Results of electronic band structure suggest that it may be regarded as a highly hole doped graphene. We also present the tight-binding model and the Dirac theory to discuss the electronic properties of aluminene.
description: 4 figures, 6 pages
Structure and evolution of a tidally heated star
Creators: name: Estrella-Trujillo, Diana
name: Arthur, S. Jane
name: Koenigsberger, Gloria
name: Moreno, Edmundo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The shearing motion of tidal flows that are excited in non-equilibrium binary stars transform kinetic energy into heat via a process referred to as tidal heating. In this paper we aim to explore the way tidal heating affects the stellar structure. We used the TIDES code, which solves the equations of motion of the three-dimensional (3D) grid of volume elements that conform multiple layers of a rotating binary star to obtain an instantaneous value for the angular velocity, $ω''$, as a function of position in the presence of gravitational, centrifugal, Coriolis, gas pressure, and viscous forces. The released energy, $\dot{E,}$ was computed using a prescription for turbulent viscosity that depends on the instantaneous velocity gradients. The $\dot{E}$ values for each radius were injected into a MESA stellar structure calculation. The method is illustrated for a 1.0+0.8 M$_\odot$ binary system, with an orbital period of $P$=1.44d and departures from synchronous rotation of 5% and 10%. We find that heated models have a larger radius and surface luminosity, a smaller surface convection zone, and lower nuclear reaction rates than the equivalent standard stellar models, and their evolutionary tracks extend to higher temperatures. The magnitude of these effects depends on the amount of injected energy, which, for a fixed set of stellar, rotation and orbital parameters, depends on the perturbed star's density structure and turbulent viscosity. Tidal heating offers a possible alternative for describing phenomena such as bloated or overluminous binary components, age discrepancies, and aspherical mass ejection, as well as the extended main sequence turnoff in clusters. However, establishing its actual role requires 3D stellar structure models commensurate with the nonspherically symmetric properties of tidal perturbations.
description: 16 pages, 7 figures, appendix with 9 figures, A&A in Press
TOI 540 b: A Planet Smaller than Earth Orbiting a Nearby Rapidly Rotating Low-mass Star
Creators: name: Latham, D.W.
name: Medina, A.
name: Ment, K.
name: Vanderspek, R.
name: Cloutier, R.
name: Ting, E.B.
name: Rojas-Ayala, B.
name: Seager, S.
name: Ziegler, C.
name: Goeke, R.F.
name: Jenkins, J.S.
name: Winn, J.N.
name: Rowden, P.
name: Jenkins, J.M.
name: Díaz, M.R.
name: Irwin, J.
name: Winters, J.G.
name: Mann, A.W.
name: Ricker, G.
name: Levine, A.M.
name: Law, N.
name: Twicken, J.D.
name: Charbonneau, D.
Publisher: name: IOP Publishing Ltd
Year: 2021

description: We present the discovery of TOI 540 b, a hot planet slightly smaller than Earth orbiting the low-mass star 2MASS J05051443-4756154. The planet has an orbital period of P = 1.239149 days (±170 ms) and a radius of r = 0.903 ± 0.052R⊕, and is likely terrestrial based on the observed mass-radius distribution of small exoplanets at similar insolations. The star is 14.008 pc away and we estimate its mass and radius to be M = 0.159 ± 0.014 M⊙ and R = 0.1895 ± 0.0079R⊙, respectively. The star is distinctive in its very short rotational period of Prot = 17.4264 ± 0.0094 hr and correspondingly small Rossby number of 0.007 as well as its high X-ray-to-bolometric luminosity ratio of LX/LboI = 0.0028 based on a serendipitous XMM-Newton detection during a slew operation. This is consistent with the X-ray emission being observed at a maximum value of as predicted for the most rapidly rotating M dwarfs. TOI 540 b may be an alluring target to study atmospheric erosion due to the strong stellar X-ray emission. It is also among the most accessible targets for transmission and emission spectroscopy and eclipse photometry with the James Webb Space Telescope, and may permit Doppler tomography with high-resolution spectroscopy during transit. This discovery is based on precise photometric data from the Transiting Exoplanet Survey Satellite and ground-based follow-up observations by the MEarth team.
Waisenmädchen auf der Suche nach sich selbst oder Wie Vivaldi das Vogelzwitschern lernte
Creators: name: Lenz, Klaudia Charlotte
Publisher: name: AKMB-news: Informationen zu Kunst, Museum und Bibliothek
Year: 2024

description: AKMB-news: Informationen zu Kunst, Museum und Bibliothek, Bd. 29 Nr. 1 (2023): AKMB-news
Systematic approximation for QCD at non-zero density
Creators: name: Aarts, Gert
name: Jäger, Benjamin
name: Seiler, Erhard
name: Sexty, Denes
name: Stamatescu, Ion-Olimpiu
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use the heavy dense formulation of QCD (HD-QCD) as the basis for an analytic expansion as systematic approximation to QCD at non-zero density, keeping the full Yang-Mills action. We analyse the structure of the baryonic density and other quantities and present data from the complex Langevin equation (CLE) and reweighting (RW) calculations for 2 flavours of Wilson fermions.
description: 8 pages, 3 figures, poster presented at the 32nd International Symposium on Lattice Field Theory (Lattice 2014), 23-28 June 2014, New York, USA
Discrete symmetries and Efficient Counting of Operators
Creators: name: Calò, Simon
name: Marinissen, Coenraad
name: Rahn, Rudi
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present DECO ("Discrete and Efficient Counting of Operators"), an implementation of the Hilbert Series to enumerate subleading operator bases for SMEFT-like EFTs with symmetry groups as typically found in flavour and BSM physics. DECO can accommodate EFTs with arbitrary numbers and combinations of the SM gauge groups, as well as the discrete groups S4, A4, and Zn, and U(1) groups with residual global charge (and these groups' most important representations). The program is highly modular and can easily be extended to additional groups and/or representations. We demonstrate the design cases for DECO by using it to cross-check subleading operator bases of EFTs in the literature, which allows us to identify a missing operator in a widely used model for the neutrino masses and discuss said operator's impact.
description: 20 pages, no figures. Published version
Quantum Dilogarithm Identities at Root of Unity
Creators: name: Ip, Ivan Chi-Ho
name: Yamazaki, Masahito
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 13F60

description: We study the root of unity degeneration of cluster algebras and quantum dilogarithm identities. We prove identities for the cyclic dilogarithm associated with a mutation sequence of a quiver, and as a consequence new identities for the non-compact quantum dilogarithm at $b=1$.
description: 20 pages
Two-phase sampling experiment for propensity score estimation in self-selected samples
Creators: name: Chen, Sixia
name: Kim, Jae-Kwang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Self-selected samples are frequently obtained due to different levels of survey participation propensity of the survey individuals. When the survey participation is related to the survey topic of interest, propensity score weighting adjustment using auxiliary information may lead to biased estimation. In this paper, we consider a parametric model for the response probability that includes the study variable itself in the covariates of the model and proposes a novel application of two-phase sampling to estimate the parameters of the propensity model. The proposed method includes an experiment in which data are collected again from a subset of the original self-selected sample. With this two-phase sampling experiment, we can estimate the parameters in a propensity score model consistently. Then the propensity score adjustment can be applied to the self-selected sample to estimate the population parameters. Sensitivity of the selection model assumption is investigated from two limited simulation studies. The proposed method is applied to the 2012 Iowa Caucus Survey.
description: Published in at http://dx.doi.org/10.1214/14-AOAS746 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Unposed: Unsupervised Pose Estimation based Product Image Recommendations
Creators: name: Sharma, Saurabh
name: Ahemad, Faizan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.m

description: Product images are the most impressing medium of customer interaction on the product detail pages of e-commerce websites. Millions of products are onboarded on to webstore catalogues daily and maintaining a high quality bar for a product's set of images is a problem at scale. Grouping products by categories, clothing is a very high volume and high velocity category and thus deserves its own attention. Given the scale it is challenging to monitor the completeness of image set, which adequately details the product for the consumers, which in turn often leads to a poor customer experience and thus customer drop off. To supervise the quality and completeness of the images in the product pages for these product types and suggest improvements, we propose a Human Pose Detection based unsupervised method to scan the image set of a product for the missing ones. The unsupervised approach suggests a fair approach to sellers based on product and category irrespective of any biases. We first create a reference image set of popular products with wholesome imageset. Then we create clusters of images to label most desirable poses to form the classes for the reference set from these ideal products set. Further, for all test products we scan the images for all desired pose classes w.r.t. reference set poses, determine the missing ones and sort them in the order of potential impact. These missing poses can further be used by the sellers to add enriched product listing image. We gathered data from popular online webstore and surveyed ~200 products manually, a large fraction of which had at least 1 repeated image or missing variant, and sampled 3K products(~20K images) of which a significant proportion had scope for adding many image variants as compared to high rated products which had more than double image variants, indicating that our model can potentially be used on a large scale.
When Do Stalled Stars Resume Spinning Down? Advancing Gyrochronology with Ruprecht 147
Creators: name: Aguirre, V.S.
name: Covey, K.R.
name: Meibom, S.,
name: Cody, A.M.
name: Curtis, J.L.
name: Matt, S.P.
name: Latham, D.W.
name: Angus, R.
name: Riddle, R.
name: Vanderburg, A.
name: Ziegler, C.
name: Wright, J.T.
name: Law, N.M.
name: Aguëros, M.A.
name: Saar, S.H.
name: Baranec, C.
name: Douglas, S.T.
name: Lund, M.N.
name: Kraus, A.L.
name: Torres, G.
Publisher: name: IOP Publishing Ltd
Year: 2020

description: Recent measurements of rotation periods () in the benchmark open clusters Praesepe (670 Myr), NGC 6811 (1 Gyr), and NGC 752 (1.4 Gyr) demonstrate that, after converging onto a tight sequence of slowly rotating stars in mass-period space, stars temporarily stop spinning down. These data also show that the duration of this epoch of stalled spin-down increases toward lower masses. To determine when stalled stars resume spinning down, we use data from the K2 mission and the Palomar Transient Factory to measure for 58 dwarf members of the 2.7 Gyr old cluster Ruprecht 147, 39 of which satisfy our criteria designed to remove short-period or near-equal-mass binaries. Combined with the Kepler data for the approximately coeval cluster NGC 6819 (30 stars with M ∗ > 0.85, our new measurements more than double the number of ≈2.5 Gyr benchmark rotators and extend this sample down to ≈0.55. The slowly rotating sequence for this joint sample appears relatively flat (22 ± 2 days) compared to sequences for younger clusters. This sequence also intersects the Kepler intermediate-period gap, demonstrating that this gap was not created by a lull in star formation. We calculate the time at which stars resume spinning down and find that 0.55 stars remain stalled for at least 1.3 Gyr. To accurately age-date low-mass stars in the field, gyrochronology formulae must be modified to account for this stalling timescale. Empirically tuning a core-envelope coupling model with open cluster data can account for most of the apparent stalling effect. However, alternative explanations, e.g., a temporary reduction in the magnetic braking torque, cannot yet be ruled out.
A Proof of Concept for Matchete: An Automated Tool for Matching Effective Theories
Creators: name: Fuentes-Martín, Javier
name: König, Matthias
name: Pagès, Julie
name: Thomsen, Anders Eller
name: Wilsch, Felix
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Studying the impact of new-physics models on low-energy observables necessitates matching to effective field theories at the relevant mass thresholds. We introduce the first public version of Matchete, a computer tool for matching weakly-coupled models at one-loop order. It uses functional methods to directly compute all matching contributions in a manifestly gauge-covariant manner, while simplification methods eliminate redundant operators from the output. We sketch the workings of the program and provide examples of how to match simple Standard Model extensions. The package, documentation, and example notebooks are publicly available at https://gitlab.com/matchete/matchete.
description: 29 pages, 2 figures, The code and example notebooks are publicly available at https://gitlab.com/matchete/matchete. Published version
Computing multiple roots of inexact polynomials
Creators: name: Zeng, Zhonggang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 12Y05, 65H05, 65F20, 65F22, 65F35

description: We present a combination of two algorithms that accurately calculate multiple roots of general polynomials. Algorithm I transforms the singular root-finding into a regular nonlinear least squares problem on a pejorative manifold, and calculates multiple roots simultaneously from a given multiplicity structure and initial root approximations. To fulfill the input requirement of Algorithm I, we develop a numerical GCD-finder containing a successive singular value updating and an iterative GCD refinement as the main engine of Algorithm II that calculates the multiplicity structure and the initial root approximation. While limitations of our algorithm exist in identifying the multiplicity structure in certain situations, the combined method calculates multiple roots with high accuracy and consistency in practice without using multiprecision arithmetic even if the coefficients are inexact. This is perhaps the first blackbox-type root-finder with such capabilities. To measure the sensitivity of the multiple roots, a structure-preserving condition number is proposed and error bounds are established. According to our computational experiments and error analysis, a polynomial being ill-conditioned in the conventional sense can be well conditioned with the multiplicity structure being preserved, and its multiple roots can be computed with high accuracy.