cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Standard model as a low-energy effective theory: what is triggering the Higgs mechanism?
Creators: name: Jegerlehner, Fred
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The discovery of the Higgs by ATLAS and CMS at the LHC not only provided the last missing building block of the electroweak Standard Model, the mass of the Higgs has been found to have a very peculiar value about 126 GeV, which is such that vacuum stability is extending up to the Planck scale. This may have much deeper drawback than anticipated so far. The impact on the running of the SM gauge, Yukawa and Higgs couplings up to the Planck scale has been discussed in several articles recently. Here we consider the impact on the running masses and we discuss the role of quadratic divergences within the Standard Model. The change of sign of the coefficient of the quadratically divergent terms showing up at about mu_0 ~ 1.4 x 10^16 GeV may be understood as a first order phase transition restoring the symmetric phase, while its large negative values at lower scales triggers the Higgs mechanism, running parameters evolve in such a way that the symmetry is restored two orders of magnitude before the Planck scale. Thus, the electroweak phase transition takes place at the scale mu_0 and not at the electroweak scale v ~ 250 GeV. The SM Higgs system and its phase transition could play a key role for the inflation of the early universe. Also baryogenesis has to be reconsidered under the aspect that perturbative arguments surprisingly work up to the Planck scale.
description: 27 pages, 9 figures. Replacement 29 pages, 11 figures, added references, corrected typos, added two additional figures with comments, results unchanged. Fig.6 and Fig.7 and Tab. 1 added Eq. (2) corrected, updated Higgs mass adopted, more details on inflation, finite temperature effects and the cosmological constant are given, notation adjusted
DartsReNet: Exploring new RNN cells in ReNet architectures
Creators: name: Moser, Brian
name: Raue, Federico
name: Hees, Jörn
name: Dengel, Andreas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We present new Recurrent Neural Network (RNN) cells for image classification using a Neural Architecture Search (NAS) approach called DARTS. We are interested in the ReNet architecture, which is a RNN based approach presented as an alternative for convolutional and pooling steps. ReNet can be defined using any standard RNN cells, such as LSTM and GRU. One limitation is that standard RNN cells were designed for one dimensional sequential data and not for two dimensions like it is the case for image classification. We overcome this limitation by using DARTS to find new cell designs. We compare our results with ReNet that uses GRU and LSTM cells. Our found cells outperform the standard RNN cells on CIFAR-10 and SVHN. The improvements on SVHN indicate generalizability, as we derived the RNN cell designs from CIFAR-10 without performing a new cell search for SVHN.
Can we integrate spatial verification methods into neural-network loss functions for atmospheric science?
Creators: name: Lagerquist, Ryan
name: Ebert-Uphoff, Imme
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In the last decade, much work in atmospheric science has focused on spatial verification (SV) methods for gridded prediction, which overcome serious disadvantages of pixelwise verification. However, neural networks (NN) in atmospheric science are almost always trained to optimize pixelwise loss functions, even when ultimately assessed with SV methods. This establishes a disconnect between model verification during vs. after training. To address this issue, we develop spatially enhanced loss functions (SELF) and demonstrate their use for a real-world problem: predicting the occurrence of thunderstorms (henceforth, "convection") with NNs. In each SELF we use either a neighbourhood filter, which highlights convection at scales larger than a threshold, or a spectral filter (employing Fourier or wavelet decomposition), which is more flexible and highlights convection at scales between two thresholds. We use these filters to spatially enhance common verification scores, such as the Brier score. We train each NN with a different SELF and compare their performance at many scales of convection, from discrete storm cells to tropical cyclones. Among our many findings are that (a) for a low (high) risk threshold, the ideal SELF focuses on small (large) scales; (b) models trained with a pixelwise loss function perform surprisingly well; (c) however, models trained with a spectral filter produce much better-calibrated probabilities than a pixelwise model. We provide a general guide to using SELFs, including technical challenges and the final Python code, as well as demonstrating their use for the convection problem. To our knowledge this is the most in-depth guide to SELFs in the geosciences.
description: 51 pages + 21 pages of supplemental material, 15 figures, 3 tables, 7 supplemental figures, accepted to Artificial Intelligence for Earth Systems
Die 21 schönsten aesopischen Fabeln
Creators: name: Kipf, Stefan
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Die 21 schönsten aesopischen Fabeln. Eine Gemeinschaftsproduktion von: MATEO (Mannheimer Texte Online), Universitätsbibliothek Mann- heim, Cyperfection - Agentur für neue Medien GmbH, CD-Rom, DM 49 (Windows 95/98/NT); zu beziehen bei Cyperfection - Agentur für neue Medien GmBh, karl-Krämer-Str. 2, 67061 Ludwigshafen.
description: Forum Classicum, Nr. 2 (1999): Forum Classicum
Capillary nanowaves on surfactant-laden liquid films with surface viscosity and elasticity
Creators: name: Zhang, Yixin
name: Ding, Zijing
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Thermal motions of molecules can generate nanowaves on the free surface of a liquid film. As nanofilms are susceptible to the contamination of surfactants, this work investigates the effects of surfactants on dynamics of nanowaves on a bounded film with a finite depth, using both molecular dynamics simulations and analytical theories. In molecular simulations, a bead-spring model is adopted to simulate surfactants, where beads are connected by the finite extensive nonlinear elastic potentials. Fourier transforms of the film surface profiles $h(x,t)$ extracted from molecular simulations are performed to obtain the static spectrum $|h_q|_{\mathrm{rms}}$ and temporal correlations of surface modes $$. It is shown that the spectral amplitude is increased for the contaminated liquid surface compared to the clean surface because surfactants can decrease surface tension. A higher concentration of surfactants on the surface not only decreases the surface tension but also causes elastic energy to the free surface, as the scaling of spectral amplitude with wavenumbers changes from $|h_q|_{\mathrm{rms}}\sim q^{-1}$ to $|h_q|_{\mathrm{rms}}\sim q^{-2}$ for modes with large wavenumbers. Regarding the temporal correlations of surface modes, it is observed that the presence of surfactants leads to a slower decay, which, however, cannot be predicted by only considering the decreased surface tension. Based on the Boussinesq Scriven model for surface viscosity, a linear stability analysis of Stokes flow for films with arbitrary depth is conducted and the obtained dispersion relation considering surface viscosity can justify the simulation results.
Epikur und die Stoa über das Glück. Ausgew., übers. zusammengest. u. m. e. Einf. sowie Anm. vers. v Gerhard Krüger
Creators: name: Wölke, Hansjörg
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Epikur und die Stoa über das Glück. Ausgew., übers. zusammengest. u. m. e. Einf. sowie Anm. vers. v Gerhard Krüger. Heidelberg: C. F. Müller 1998. VI, 46 S., 22,00 DM (Heidelberger Forum. 100; ISBN3-8114-2798-9).
description: Forum Classicum, Nr. 3 (1999): Forum Classicum
Marketing Practices and Financial Performance of Local Food Producers: A Comparison of Beginning and Experienced Farmers
Creators: name: Martinez, Steve W.
name: Park, Timothy
name: Martinez, Steve W.
name: Park, Timothy
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Farm Management
subject: Financial Economics
subject: Industrial Organization
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies
subject: Marketing
subject: Local food producers
subject: beginning farmers
subject: Local foods
subject: 2015 Local Food Marketing Practices Survey
subject: LFMPS
subject: financial performance
subject: marketing expenses
subject: internet
subject: food hubs
subject: processors
subject: wholesalers
subject: producers
subject: farmers' markets
subject: retail
subject: e-commerce
subject: farm management
subject: third-party certification
subject: Farm Bill
subject: National Agricultural Statistics Service
subject: direct-to-consumer sales
subject: food system
subject: marketing plan
subject: institutions
subject: commodities
subject: fruit
subject: vegetables
subject: crops
subject: eggs
subject: livestock

description: Local foods are a small but growing share of U.S. agriculture. Marketing channels for local foods include direct sales to consumers (e.g., farmers’ markets, on-farm stores, or pick-your-own stores), grocery stores, restaurants, schools, wholesalers, and food hubs. Local food sales may provide finan-cial benefits to beginning and more experienced farmers compared to farmers who market through traditional channels. This report evaluates the characteristics, production, and marketing practices, and financial performance of local food producers with varying levels of farming and direct marketing experience.
title: Coral Reef Ecosystem Monitoring Report for the Pacific Remote Islands Marine National Monument 2000 - 2017: Chapter 6 Johnston Atoll
Creators: name: Brainard, Russell
name: Acoba, Tomoko
name: Asher, Megan A.M.
Publisher: name: Pacific Islands Fisheries Science Center (U.S.)
Year: 2019

description: SP-19-006f
Heat Diode Effect and Negative Differential Thermal Conductance across Nanoscale Metal-Dielectric Interfaces
Creators: name: Ren, Jie
name: Zhu, Jian-Xin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Controlling heat flow by phononic nanodevices has received significant attention recently because of its fundamental and practical implications. Elementary phononic devices such as thermal rectifiers, transistors, and logic gates are essentially based on two intriguing properties: heat diode effect and negative differential thermal conductance. However, little is known about these heat transfer properties across metal-dielectric interfaces, especially at nanoscale. Here we analytically resolve the microscopic mechanism of the nonequilibrium nanoscale energy transfer across metal-dielectric interfaces, where the inelastic electron-phonon scattering directly assists the energy exchange. We demonstrate the emergence of heat diode effect and negative differential thermal conductance in nanoscale interfaces and explain why these novel thermal properties are usually absent in bulk metal-dielectric interfaces. These results will generate exciting prospects for the nanoscale interfacial energy transfer, which should have important implications in designing hybrid circuits for efficient thermal control and open up potential applications in thermal energy harvesting with low-dimensional nanodevices.
description: 5++ pages, 2 figures. Accepted as PRB Rapid Communication. See http://link.aps.org/doi/10.1103/PhysRevB.87.241412
Performance of the Metropolis algorithm on a disordered tree: The Einstein relation
Creators: name: Maillard, Pascal
name: Zeitouni, Ofer
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Consider a $d$-ary rooted tree ($d\geq3$) where each edge $e$ is assigned an i.i.d. (bounded) random variable $X(e)$ of negative mean. Assign to each vertex $v$ the sum $S(v)$ of $X(e)$ over all edges connecting $v$ to the root, and assume that the maximum $S_n^*$ of $S(v)$ over all vertices $v$ at distance $n$ from the root tends to infinity (necessarily, linearly) as $n$ tends to infinity. We analyze the Metropolis algorithm on the tree and show that under these assumptions there always exists a temperature $1/β$ of the algorithm so that it achieves a linear (positive) growth rate in linear time. This confirms a conjecture of Aldous [Algorithmica 22 (1998) 388-412]. The proof is obtained by establishing an Einstein relation for the Metropolis algorithm on the tree.
description: Published in at http://dx.doi.org/10.1214/13-AAP972 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Marvin Cooley and William Drexler, Tax Rebellion Seminar (Excerpt)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019
Subjects: Tax protests and appeals
Tax evasion
Income tax
Taxation

description: M. Cooley - Tax rebel from Mesa, Arizona at present in Federal Prison serving a 3 year sentence for wilfull failure to file a return. W. Drexler - tax rebel and attorney from San Francisco. Won a landmark decision in court in 1973 based upon a 5th ammendment tax return. Both conservative
Distributed Accelerated Projection-Based Consensus Decomposition
Creators: name: Maj, Wiktor
Publisher: name: arXiv
Year: 2023
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: With the development of machine learning and Big Data, the concepts of linear and non-linear optimization techniques are becoming increasingly valuable for many quantitative disciplines. Problems of that nature are typically solved using distinctive optimization algorithms, iterative methods, or heuristics. A new variant of the Accelerated Projection-Based Consensus (APC) iterative method is proposed, which is faster than its classical version while handling large sparse matrices in distributed settings. The algorithm is proposed, and its description and implementation in a high-level programming language are presented. Convergence tests measuring acceleration factors based on real-world datasets are done, and their results are promising. The results of this research can be used as an alternative to solving numerical optimization problems.
description: Publicized in the TASK Quarterly scientific journal of the Gdansk University of Technology
Managing health insurance using blockchain technology
Creators: name: Ananna, Tajkia Nuri
name: Saifuzzaman, Munshi
name: Chowdhury, Mohammad Jabed Morshed
name: Ferdous, Md Sadek
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computers and Society (cs.CY)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Health insurance plays a significant role in ensuring quality healthcare. In response to the escalating costs of the medical industry, the demand for health insurance is soaring. Additionally, those with health insurance are more likely to receive preventative care than those without health insurance. However, from granting health insurance to delivering services to insured individuals, the health insurance industry faces numerous obstacles. Fraudulent actions, false claims, a lack of transparency and data privacy, reliance on human effort and dishonesty from consumers, healthcare professionals, or even the insurer party itself, are the most common and important hurdles towards success. Given these constraints, this chapter briefly covers the most immediate concerns in the health insurance industry and provides insight into how blockchain technology integration can contribute to resolving these issues. This chapter finishes by highlighting existing limitations as well as potential future directions.
description: 37 pages, 2 figures, 12 tables
title: Coral Reef Ecosystem Monitoring Report for the Pacific Remote Islands Marine National Monument 2000 - 2017: Chapter 7 Howland Island
Creators: name: Brainard, Russell
name: Acoba, Tomoko
name: Asher, Megan A.M.
Publisher: name: Pacific Islands Fisheries Science Center (U.S.)
Year: 2019

description: SP-19-006g
Die Herkunft des altägyptischen Streitwagens in Florenz.
Creators: name: Dittmann, Karl Heinrich
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2017

description: [nicht erschienen / not available]
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 18, Nr. 4 (1934)
The Halo Occupation Distribution of X-ray-Bright Active Galactic Nuclei: A Comparison with Luminous Quasars
Creators: name: Richardson, Jonathan W.
name: Chatterjee, Suchetana
name: Zheng, Zheng
name: Myers, Adam
name: Hickox, Ryan C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We perform halo occupation distribution (HOD) modeling of the projected two-point correlation function (2PCF) of high-redshift (z~1.2) X-ray-bright active galactic nuclei (AGN) in the XMM-COSMOS field measured by Allevato et al. The HOD parameterization is based on low-luminosity AGN in cosmological simulations. At the median redshift of z~1.2, we derive a median mass of (1.02+0.21/-0.23)x10^{13} Msun/h for halos hosting central AGN and an upper limit of ~10% on the AGN satellite fraction. Our modeling results indicate (at the 2.5-sigma level) that X-ray AGN reside in more massive halos compared to more bolometrically luminous, optically-selected quasars at similar redshift. The modeling also yields constraints on the duty cycle of the X-ray AGN, and we find that at z~1.2 the average duration of the X-ray AGN phase is two orders of magnitude longer than that of the quasar phase. Our inferred mean occupation function of X-ray AGN is similar to recent empirical measurements with a group catalog and suggests that AGN halo occupancy increases with increasing halo mass. We project the XMM-COSMOS 2PCF measurements to forecast the required survey parameters needed in future AGN clustering studies to enable higher precision HOD constraints and determinations of key physical parameters like the satellite fraction and duty cycle. We find that N^{2}/A~5x10^{6} deg^{-2} (with N the number of AGN in a survey area of A deg^{2}) is sufficient to constrain the HOD parameters at the 10% level, which is easily achievable by upcoming and proposed X-ray surveys.
description: 11 pages, 4 figures, accepted in ApJ
title: Coral Reef Ecosystem Monitoring Report for the Pacific Remote Islands Marine National Monument 2000 - 2017: Chapter 8 Baker Island
Creators: name: Brainard, Russell
name: Acoba, Tomoko
name: Asher, Megan A.M.
Publisher: name: Pacific Islands Fisheries Science Center (U.S.)
Year: 2019

description: SP-19-006h
Estimates for rough Fourier integral and pseudodifferential operators and applications to the boundedness of multilinear operators
Creators: name: Rodríguez-López, Salvador
name: Staubach, Wolfgang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35S30 (primary), 42B20, 42B99 (secondary)

description: We study the boundedness of rough Fourier integral and pseudodifferential operators, defined by general rough Hörmander class amplitudes, on Banach and quasi-Banach $L^p$ spaces. Thereafter we apply the aforementioned boundedness in order to improve on some of the existing boundedness results for Hörmander class bilinear pseudodifferential operators and certain classes of bilinear (as well as multilinear) Fourier integral operators. For these classes of amplitudes, the boundedness of the aforementioned Fourier integral operators turn out to be sharp. Furthermore we also obtain results for rough multilinear operators.
description: arXiv admin note: substantial text overlap with arXiv:1111.4652 Various typos have been eliminated
Efficient simulation of Gottesman-Kitaev-Preskill states with Gaussian circuits
Creators: name: Calcluth, Cameron
name: Ferraro, Alessandro
name: Ferrini, Giulia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the classical simulatability of Gottesman-Kitaev-Preskill (GKP) states in combination with arbitrary displacements, a large set of symplectic operations and homodyne measurements. For these types of circuits, neither continuous-variable theorems based on the non-negativity of quasi-probability distributions nor discrete-variable theorems such as the Gottesman-Knill theorem can be employed to assess the simulatability. We first develop a method to evaluate the probability density function corresponding to measuring a single GKP state in the position basis following arbitrary squeezing and a large set of rotations. This method involves evaluating a transformed Jacobi theta function using techniques from analytic number theory. We then use this result to identify two large classes of multimode circuits which are classically efficiently simulatable and are not contained by the GKP encoded Clifford group. Our results extend the set of circuits previously known to be classically efficiently simulatable.
description: 31 pages, 8 figures - published version
Symmetry-Protected Majorana Fermions in Topological Crystalline Superconductors: Theory and Application to Sr2RuO4
Creators: name: Ueno, Yuji
name: Yamakage, Ai
name: Tanaka, Yukio
name: Sato, Masatoshi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Crystal point group symmetry is shown to protect Majorana fermions (MFs) in spinfull superconductors (SCs). We elucidate the condition necessary to obtain MFs protected by the point group symmetry. We argue that superconductivity in Sr2RuO4 hosts a topological phase transition to a topological crystalline SC, which accompanies a d-vector rotation under a magnetic field along the c-axis. Taking all three bands and spin-orbit interactions into account, symmetry-protected MFs in the topological crystalline SC are identified. Detection of such MFs provides evidence of the d-vector rotation in Sr2RuO4 expected from Knight shift measurements but not yet verified.
description: 6 pages, 2 figures (proper paper)+ 6 pages, 5 figures (supplemental material); final version accepted for publication in PRL
A Memetic Procedure for Global Multi-Objective Optimization
Creators: name: Lapucci, Matteo
name: Mansueto, Pierluigi
name: Schoen, Fabio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 90C29, 90C30, 68W20

description: In this paper we consider multi-objective optimization problems over a box. The problem is very relevant and several computational approaches have been proposed in the literature. They broadly fall into two main classes: evolutionary methods, which are usually very good at exploring the feasible region and retrieving good solutions even in the nonconvex case, and descent methods, which excel in efficiently approximating good quality solutions. In this paper, first we confirm, through numerical experiments, the advantages and disadvantages of these approaches. Then we propose a new method which combines the good features of both. The resulting algorithm, which we call Non-dominated Sorting Memetic Algorithm (NSMA), besides enjoying interesting theoretical properties, excels in all of the numerical tests we performed on several, widely employed, test functions.
description: 30 pages, 8 figures
title: An Exploration of First Nations Reserves and Access to Cash
Creators: name: Chen, Heng
name: Engert, Walter
name: Huynh, Kim
name: O’Habib, Daneal
Publisher: name: Bank of Canada
Year: 2021

description: Adequate cash distribution is one the Bank of Canada’s core interests. Canadians’ ability to access cash influences the Bank’s thinking on issuing a central bank digital currency. We provide a perspective on these issues by exploring access of First Nations reserves to cash.

description: La distribution adéquate des billets de banque est l’un des grands sujets d’intérêt de la Banque du Canada. La capacité de la population canadienne d’accéder à l’argent comptant influe sur la réflexion que la Banque mène relativement à l’émission d’une monnaie numérique de banque centrale. Nous apportons un point de vue sur ces questions en analysant l’accès à l’argent comptant des résidents de réserves autochtones.
title: Coral Reef Ecosystem Monitoring Report for the Pacific Remote Islands Marine National Monument 2000 - 2017: Chapter 9 PRIMNM in the Pacific-wide Context
Creators: name: Brainard, Russell
name: Acoba, Tomoko
name: Asher, Megan A.M.
Publisher: name: Pacific Islands Fisheries Science Center (U.S.)
Year: 2019

description: SP-19-006i
Directional dependence of LCDM cosmological parameters
Creators: name: Axelsson, M.
name: Fantaye, Y.
name: Hansen, F. K.
name: Banday, A. J.
name: Eriksen, H. K.
name: Gorski, K. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study hemispherical power asymmetry (Eriksen et. al. 2004, Hansen et. al. 2004, Hansen et. al. 2009) in the WMAP 9-year data. We analyse the combined V- and W-band sky maps, after application of the KQ85 mask, and find that the asymmetry is statistically significant at the 3.4sigma confidence level for ell=2-600, where the data is signal dominated, with a preferred asymmetry direction (l,b)=(227,-27). Individual asymmetry axes estimated from six independent multipole ranges are all consistent with this direction. Subsequently, we estimate cosmological parameters on different parts of the sky and show that the parameters A_s, n_s and Omega_b are the most sensitive to this power asymmetry. In particular, for the two opposite hemispheres aligned with the preferred asymmetry axis, we find n_s = 0.959 \pm 0.022 and n_s = 0.989 \pm 0.024, respectively.
description: 6 pages, 7 figures, published in ApJL
Parametrically enhanced interactions and non-trivial bath dynamics in a photon-pressure Kerr amplifier
Creators: name: Rodrigues, Ines C.
name: Steele, Gary A.
name: Bothner, Daniel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Photon-pressure coupling between two superconducting circuits is a promising platform for investigating radiation-pressure coupling in novel parameter regimes and for the development of radio-frequency (RF) quantum photonics and quantum-limited RF sensing. So far, the intrinsic Josephson nonlinearity of photon-pressure coupled circuits has not been considered a potential resource for enhanced devices or novel experimental schemes. Here, we implement photon-pressure coupling between a RF circuit and a microwave cavity containing a superconducting quantum interference device (SQUID) which can be operated as a Josephson parametric amplifier (JPA). We demonstrate a Kerr-based enhancement of the photon-pressure single-photon coupling rate and an increase of the cooperativity by one order of magnitude in the amplifier regime. In addition, we characterize the upconverted and Kerr-amplified residual thermal fluctuations of the RF circuit, and observe that the intracavity amplification reduces the measurement imprecision. Finally, we demonstrate that RF mode sideband-cooling is surprisingly not limited to the effective amplifier mode temperature arising from quantum noise amplification, which we explain by non-trivial bath dynamics due to a two-stage amplification process. Our results demonstrate how Kerr nonlinearities and in particular Josephson parametric amplification can be utilized as resource for enhanced photon-pressure systems and Kerr cavity optomechanics.
title: Ανάπτυξη λογισμικού επικοινωνίας με πρότυπο δορυφορικό δέκτη GPS NORD (NovAtel OEM4 Receiver Deamon)
Creators: name: Παπαδάκης Γιώργος
Publisher: name: Technical University of Crete
Year: 2011

description: Μη διαθέσιμο
Oral vocabulary and word reading: the role of mispronunciation correction
Creators: name: Murray, Lyndall
Publisher: name: Macquarie University
Year: 2023
Subjects: classificationCode: 520203
subject: Cognitive neuroscience

description: Mispronunciation correction is a process that children undertake when they are unable to access the correct pronunciation of an unfamiliar word via initially decoding using their knowledge of grapheme to phoneme correspondences, leading to children flexibly applying their pronunciation of constituent sounds alongside semantic and contextual support to activate the appropriate phonological form. However, relatively little is known about the function that mispronunciation correction serves in correctly reading new words. This thesis focuses on discovering more about the mispronunciation correction process both as children read new words, and when they hear known words being mispronounced. Chapter Two explores the relationship between mispronunciation correction and its underlying phonological, orthographic, and semantic processes in explaining reading accuracy for regular and irregular words. It also explores the variables with which mispronunciation correction shares the most variance. We found that regular word reading is a mainly phonological task, but that irregular word reading involves a small semantic component. Chapter Three examines the mispronunciation correction process dynamically via an eye tracking methodology. We found that orally familiar irregular words underwent longer processing, indicating that children might need longer to resolve the orthographic-phonological mismatch for these words. Word recall predicted reading accuracy for irregular words, suggesting that item specific vocabulary knowledge is important in the mispronunciation correction process. Chapter Four extends on these findings as children read orally familiar orthographically novel words aloud while their eye movements were monitored. We found that children spent longer processing irregular words when they performed oral mispronunciation corrections. However, fixations were longer for irregular words regardless of whether they corrected the pronunciation or not, suggesting that even when they unable to resolve the phonological discrepancy, eye movements captured children’s uncertainty. This thesis concludes by discussing the outcomes of each chapter within the framework of the most developed theoretical models of mispronunciation correction. I explore my results within the context of the phonological attractor model. I then look at theorised relationships between mispronunciation correction and oral vocabulary in relation to my findings. I also look at the role of mispronunciation correction for children with more reading experience. I look at how my results with novel word reading and with sight word reading fit within this framework. Lastly, I identify open questions within the mispronunciation correction literature.
Transport properties of very overdoped nonsuperconducting Bi2Sr2CuO6+d thin films
Creators: name: Raffy, H.
name: Li, Z. Z.
name: Auban-Senzier, P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The transport properties, resistance, Hall effect, and low T magnetoresistance for very oxygen overdoped nonsuperconducting Bi2Sr2CuO6+d (Bi2201) thin films are reported. From 20 to 300K, the temperature dependence of the resistance is well described by a law of the form a+bT4/3, theoretically predicted to occur in the presence of ferromagnetic fluctuations. In addition, this prediction is reinforced by the analysis of the transverse and the longitudinal low T magnetoresistance. Interestingly, the presence of a weak disorder causing low T electronic localization allows us to evidence very short diffusion lengths, as observed in other systems with ferromagnetic fluctuations.
description: 8 pages 8 figures
Risk-averse design of tall buildings for uncertain wind conditions
Creators: name: Kodakkal, Anoop
name: Keith, Brendan
name: Khristenko, Ustim
name: Apostolatos, Andreas
name: Bletzinger, Kai-Uwe
name: Wohlmuth, Barbara
name: Wuechner, Roland
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: Reducing the intensity of wind excitation via aerodynamic shape modification is a major strategy to mitigate the reaction forces on supertall buildings, reduce construction and maintenance costs, and improve the comfort of future occupants. To this end, computational fluid dynamics (CFD) combined with state-of-the-art stochastic optimization algorithms is more promising than the trial and error approach adopted by the industry. The present study proposes and investigates a novel approach to risk-averse shape optimization of tall building structures that incorporates site-specific uncertainties in the wind velocity, terrain conditions, and wind flow direction. A body-fitted finite element approximation is used for the CFD with different wind directions incorporated by re-meshing the fluid domain. The bending moment at the base of the building is minimized, resulting in a building with reduced cost, material, and hence, a reduced carbon footprint. Both risk-neutral and risk-averse optimization of the twist and tapering of a representative building are presented under uncertain inflow wind conditions that have been calibrated to fit freely-available site-specific data from Basel, Switzerland. The risk-averse strategy uses the conditional value-at-risk to optimize for the low-probability high-consequence events appearing in the worst 10% of loading conditions. Adaptive sampling is used to accelerate the gradient-based stochastic optimization pipeline. The adaptive method is easy to implement and particularly helpful for compute-intensive simulations because the number of gradient samples grows only as the optimal design algorithm converges. The performance of the final risk-averse building geometry is exceptionally favorable when compared to the risk-neutral optimized geometry, thus, demonstrating the effectiveness of the risk-averse design approach in computational wind engineering.
Gallia omnis - Animierte Präsentation zur Interpretation des Anfangs des Bellum Gallicum
Creators: name: Stratenwerth, Dietrich
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: Dietrich Stratenwerth stellt in seinem anregenden Beitrag Gallia omnis - Animierte Präsentation zur Interpretation des Anfangs des Bellum Gallicum eine Möglichkeit vor, den Beginn der Caesar-Lektüre mit Hilfe einer Power Point-Präsentation abwechslungsreich und anschaulich zu gestalten.
description: Pegasus-Onlinezeitschrift, Bd. 4, Nr. 2 (2004): Pegasus-Onlinezeitschrift
Calculabilité de la cohomologie étale modulo l
Creators: name: Madore, David A.
name: Orgogozo, Fabrice
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Let $X$ be an algebraic scheme over an algebraically closed field and $\ell$ a prime number invertible on $X$. According to classical results (due essentially to A. Grothendieck, M. Artin and P. Deligne), the étale cohomology groups $\mathrm{H}^i(X,\mathbb{Z}/\ell\mathbb{Z})$ are finite-dimensional. Using an $\ell$-adic variant of M. Artin's good neighborhoods and elementary results on the cohomology of pro-$\ell$ groups, we express the cohomology of $X$ as a well controlled colimit of that of toposes constructed on $BG$ where the $G$ are computable finite $\ell$-groups. From this, we deduce that the Betti numbers modulo $\ell$ of $X$ are algorithmically computable (in the sense of Church-Turing). The proof of this fact, along with certain related results, occupies the first part of this paper. This relies on the tools collected in the second part, which deals with computational algebraic geometry. Finally, in the third part, we present a "universal" formalism for computation on the elements of a field.
description: In French. v2 has been considerably reworked and expanded. v3 incorporates slight corrections and simplifications and a few additions (notably: computability of the morphism from hyper\v{c}ech cohomology, graded algebra structure, and a worked out example); submitted for publication
Charge order driven by multiple-Q spin fluctuations in heavily electron-doped iron selenide superconductors
Creators: name: Chen, Ziyuan
name: Li, Dong
name: Lu, Zouyouwei
name: Liu, Yue
name: Zhang, Jiakang
name: Li, Yuanji
name: Yin, Ruotong
name: Li, Mingzhe
name: Zhang, Tong
name: Dong, Xiaoli
name: Yan, Ya-Jun
name: Feng, Dong-Lai
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Intertwined spin and charge orders have been widely studied in high-temperature superconductors, since their fluctuations may facilitate electron pairing; however, they are rarely identified in heavily electron-doped iron selenides. Here, using scanning tunneling microscopy, we show that when the superconductivity of (Li0.84Fe0.16OH)Fe1-xSe is suppressed by introducing Fe-site defects, a short-ranged checkerboard charge order emerges, propagating along the Fe-Fe directions with an approximately 2aFe period. It persists throughout the whole phase space tuned by Fe-site defect density, from a defect-pinned local pattern in optimally doped samples to an extended order in samples with lower Tc or non-superconducting. Intriguingly, our simulations indicate that the charge order is likely driven by multiple-Q spin density waves originating from the spin fluctuations observed by inelastic neutron scattering. Our study proves the presence of a competing order in heavily electron-doped iron selenides, and demonstrates the potential of charge order as a tool to detect spin fluctuations.
description: 16 pages, 5 figures
PHENIX measurement of system size dependence of low momentum photon production
Creators: name: Esha, Roli
Publisher: name: Zenodo
Year: 2020
Subjects: rhic
phenix
pid
emcal
direct photon
small systems
dnp19

description: Direct photons provide information about the space-time evolution of matter produced in relativistic heavy-ion collisions. PHENIX results are presented.
Towards a Deep Learning Model for Hadronization
Creators: name: Ghosh, Aishik
name: Ju, Xiangyang
name: Nachman, Benjamin
name: Siodmok, Andrzej
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Hadronization is a complex quantum process whereby quarks and gluons become hadrons. The widely-used models of hadronization in event generators are based on physically-inspired phenomenological models with many free parameters. We propose an alternative approach whereby neural networks are used instead. Deep generative models are highly flexible, differentiable, and compatible with Graphical Processing Unit (GPUs). We make the first step towards a data-driven machine learning-based hadronization model by replacing a compont of the hadronization model within the Herwig event generator (cluster model) with a Generative Adversarial Network (GAN). We show that a GAN is capable of reproducing the kinematic properties of cluster decays. Furthermore, we integrate this model into Herwig to generate entire events that can be compared with the output of the public Herwig simulator as well as with $e^+e^-$ data.
description: 18 pages, 6 figures
Limit shapes of bumping routes in the Robinson-Schensted correspondence
Creators: name: Romik, Dan
name: Śniady, Piotr
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 68Q87 (Primary) 60C05, 05E10, 20C30 (Secondary)

description: We prove a limit shape theorem describing the asymptotic shape of bumping routes when the Robinson-Schensted algorithm is applied to a finite sequence of independent, identically distributed random variables with the uniform distribution $U[0,1]$ on the unit interval, followed by an insertion of a deterministic number $α$. The bumping route converges after scaling, in the limit as the length of the sequence tends to infinity, to an explicit, deterministic curve depending only on $α$. This extends our previous result on the asymptotic determinism of Robinson-Schensted insertion, and answers a question posed by Moore in 2006.
description: 14 pages
title: Μέθοδος προσομοίωσης σημάτων εγκεφαλογραφήματος και επίδραση των παραμέτρων στην ανάλυση συνιστωσών
Creators: name: Αθανασίου Αλεξάνδρα
Publisher: name: Technical University of Crete
Year: 2011

description: Μη διαθέσιμο
Modelling the galaxy-halo connection with semi-recurrent neural networks
Creators: name: Chittenden, Harry George
name: Tojeiro, Rita
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an artificial neural network design in which past and present-day properties of dark matter halos and their local environment are used to predict time-resolved star formation histories and stellar metallicity histories of central and satellite galaxies. Using data from the IllustrisTNG simulations, we train a TensorFlow-based neural network with two inputs: a standard layer with static properties of the dark matter halo, such as halo mass and starting time; and a recurrent layer with variables such as overdensity and halo mass accretion rate, evaluated at multiple time steps from $0 \leq z \lesssim 20$. The model successfully reproduces key features of the galaxy halo connection, such as the stellar-to-halo mass relation, downsizing, and colour bimodality, for both central and satellite galaxies. We identify mass accretion history as crucial in determining the geometry of the star formation history and trends with halo mass such as downsizing, while environmental variables are important indicators of chemical enrichment. We use these outputs to compute optical spectral energy distributions, and find that they are well matched to the equivalent results in IllustrisTNG, recovering observational statistics such as colour bimodality and mass-magnitude diagrams.
description: 22 pages, excluding references. 25 figures. Submitted to MNRAS
Gauge theory models on $κ$-Minkowski space: Results and prospects
Creators: name: Hersent, Kilian
name: Wallet, Jean-Christophe
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Recent results obtained in $κ$-Poincaré invariant gauge theories on $κ$-Minkowski space are reviewed and commented. A Weyl quantization procedure can be applied to convolution algebras to derive a convenient star product. For such a star product, gauge invariant polynomial action functional depending on the curvature exists only in 5 dimensions. The corresponding noncommutative differential calculus and the related connection are twisted together with the BRST structure linked to the gauge invariance. Phenomenological consequences stemming from the existence of one extra dimension are commented. Some consequences of the appearance of a non-vanishing one-loop tadpole upon BRST gauge-fixing are discussed.
description: 28 pages. From a talk given at the "Workshop on Quantum Geometry, Field Theory and Gravity", Corfu, Sep 20 - Sep 27, 2021
A new phase of scalar field with a kinetic term non-minimally coupled to gravity
Creators: name: Ghalee, Amir
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider the dynamics of a scalar field non-minimally coupled to gravity in the context of cosmology. It is demonstrated that there exists a new phase for the scalar field, in addition to the inflationary and dust-like (reheating period) phases. Analytic expressions for the scalar field and the Hubble parameter, which describe the new phase are given. The Hubble parameter indicates an accelerating expanding Universe. We explicitly show that the scalar field oscillates with time- dependent frequency. Moreover, an interaction between the scalar field in the new phase and other fields is discussed. It turns out that the parametric resonance is absent, which is another crucial difference between the dynamics of the scalar field in the new phase and dust-like phase.
description: 5 pages, 3 figures, slightly changed title, added references