cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The history and progress of obstetrics
Creators: name: Fairhurst, Barbara A.
Publisher: name: University of Oregon
Year: 1932
Subjects: History of Medicine
Obstetrics
Maternal Welfare

description: Most women are interested in the procedure of birth, and certainly all men have had the experience of being born. Therefore, it seems that this thesis's topic has universal appeal. In this research, I discuss the history, development and science of obstetrics and to make in some way intelligible the age-old mysteries that surround the many phenomena which the word “obstetric” connotes. We have modern obstetrics with its exact knowledge of functional anatomy, its pain-relieving drugs, its death robbing surgical operations. However, we realize that, despite these explorations, a huge uncharted territory of obstetrical ignorance remains. It is hardly conceivable that man will ever be the complete master of all the secrets of birth. I am sure that there will always remain a residuum of the unknowable. Every person interested in maternal welfare idealizes and dreams of the time of an ideal birth, of birth free from danger, rid of pain, and deprived of inconvenience. This is the goal to which all pioneering efforts have been directed.
Potere della retorica e crisi del linguaggio: l'iconicità espressiva di Carlo Michelstaedter
Creators: name: Rutigliano, Stefania
Publisher: name: Università degli Studi di Cagliari
Year: 2014

description: Propongo una lettura della Persuasione e la rettorica di Carlo Michelstaedter che ripercorra la critica – individuandone le matrici ebraiche e greche – alla “rettorica” in quanto logos sufficiente alla comunicazione sociale, intrecciandola al progetto di costruzione di sé (Freud) centrale nella figura del persuaso. Dunque, da un lato mi interessa indicare la Bildersprache di Michelstaedter, le immagini richiamate per parlare contro la rettorica (ad esempio il peso, il pallone aerostatico, l’iperbole della giustizia, lo stesso elenco iniziale di persuasi che include il Cristo delle parabole e il Petrarca iconico dei Trionfi come racconto delle origini e quasi autobiografia culturale) e la funzione del racconto (midrashico) col suo sapere pre-greco e pre-retorico; dall’altro mi preme insistere sull’analisi della persona che è l’obiettivo della critica del logos di matrice socratica e implica il modello ambito attraverso il persuaso. La via che vi conduce viene esposta – il ripetuto “lo” nell’elenco dei persuasi della storia, la luce improvvisa, il bambino spaventato dal buio, gli uomini che, angosciati dai brutti sogni, accendono la luce per rassicurarsi, le persone come specchio reciproco – in modo da affermare la differenza tra la conoscenza e il giudizio (Benjamin, Sulla lingua in generale e sulla lingua degli uomini), tra “questo è” e “questo è per me” (Michelstaedter) e suggerire, quasi in un presentimento di Freud, il lavoro sull’inconscio da portare alla luce.
description: Between, Vol 4, N° 7 (2014): Poteri della retorica
Equations defining secant varieties: geometry and computation
Creators: name: Sidman, Jessica
name: Vermeire, Peter
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13D02, 14N05, 14F05, 14H99,

description: In the 1980's, work of Green and Lazarsfeld helped to uncover the beautiful interplay between the geometry of the embedding of a curve and the syzygies of its defining equations. Similar results hold for the first secant variety of a curve, and there is a natural conjectural picture extending to higher secant varieties as well. We present an introduction to the algebra and geometry used in previous work of the authors to study syzygies of secant varieties of curves with an emphasis on examples of explicit computations and elementary cases that illustrate the geometric principles at work.
description: v1: 2 figures; written for the proceedings of the Abel Symposium 2009; v2: minor changes in exposition, Macaulay 2 code added; v3: hypothesis of normality added in Theorems 5 and 8. See Remarks 4 and 9 for explanation of the additional hypotheses; v4: typos fixed
Singing vocal source separation on Jingju Music
Creators: name: Chen, Zhijin
Publisher: name: Zenodo
Year: 2024
Subjects: Jingju Music
Vocal Source Separation
Computational Ethnomusicology
Dataset Construction
Fine-tune Model

description: This thesis addresses the challenge of vocal source separation in Jingju (Peking Opera) music through three key objectives. First, it introduces a multi-track dataset (JMTRC) specifically designed for Jingju, featuring isolated vocal and instrumental tracks meticulously recorded and annotated for training and evaluating source separation models. Second, it examines the applicability of existing source separation models, originally trained on popular music, to Jingju music, revealing their limitations due to the unique acoustic properties and complex interactions characteristic of Jingju. Third, the study explores the enhancement of these models through fine-tuning with the Jingju dataset, demonstrating substantial improvements in separation quality as evidenced by increased Scale-Invariant Signal-to-Distortion Ratio (Si-SDR) and perceptual quality metrics. Overall, this research contributes to computational ethnomusicology by providing a specialized dataset and methodologies for Jingju vocal separation, with implications for the preservation and promotion of this traditional music through advanced digital techniques.
The Night before the LHC
Creators: name: Nojiri, Mihoko M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I review recent developments on the use of mT2 variables for SUSY parameter study, which might be useful for the data analysis in the early stage of the LHC experiments. I also review some of recent interesting studies. Talk in SUSY08.
description: 5 pages, 5 figures, a plenary talk in SUSY08
Global Fits of the Large Volume String Scenario to WMAP5 and Other Indirect Constraints Using Markov Chain Monte Carlo
Creators: name: Allanach, B. C.
name: Dolan, M. J.
name: Weber, A. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present global fits to the Large Volume Scenario (LVS) of string models using current indirect data. We use WMAP5 constraints on dark matter relic density, b-physics and electroweak observables as well as direct search constraints. Such data can be adequately fit by LVS, with the best-fit point for mu>0 having chi^2=13.6 for 8 degrees of freedom. The resulting constraints on parameter space are robust in that they do not depend much upon the prior, or upon whether one uses Bayesian or frequentist interpretations of the data. Sparticle masses are constrained to be well below the 1 TeV level, predicting early SUSY discovery at the LHC. We devise a method of quantifying which are the most important constraints. We find that the LEP2 Higgs mass constraint, the relic density of dark matter and the anomalous magnetic moment of the muon affect the fits to the strongest degree.
description: 30 pages, 10 figures
The role of controllability in optimizing quantum dynamics
Creators: name: Wu, Re-Bing
name: Hsieh, Michael A.
name: Rabitz, Herschel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper discusses the important role of controllability played on the complexity of optimizing quantum mechanical control systems. The study is based on a topology analysis of the corresponding quantum control landscape, which is referred to as the optimization objective as a functional of control fields. We find that the degree of controllability is closely relevant with the ruggedness of the landscape, which determines the search efficiency for global optima. This effect is demonstrated via the gate fidelity control landscape of a system whose controllability is restricted on a SU(2) dynamic symmetry group. We show that multiple local false traps (i.e., non-global suboptima) exist even if the target gate is realizable and that the number of these traps is increased by the loss of controllability, while the controllable systems are always devoid of false traps.
description: 13 pages, 3 figures
Magnetic dilaton strings in anti-de Sitter spaces
Creators: name: Sheykhi, Ahmad
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: With an appropriate combination of three Liouville-type dilaton potentials, we construct a new class of spinning magnetic dilaton string solutions which produces a longitudinal magnetic field in the background of anti-de Sitter spacetime. These solutions have no curvature singularity and no horizon, but have a conic geometry. We find that the spinning string has a net electric charge which is proportional to the rotation parameter. We present the suitable counterterm which removes the divergences of the action in the presence of dilaton potential. We also calculate the conserved quantities of the solutions by using the counterterm method.
description: 13 pages, to appear in Phys. Lett. B
Nursing and public health in England
Creators: name: Farnsworth, Louise
Publisher: name: University of Oregon
Year: 1939
Subjects: History of Nursing
Public Health Nursing
England

description: Nursing has been considered a profession only since the establishment of training schools with the definitive standard of curriculum. In early English history, there were almost no doctors and none at all outside the important cities. The monks and nuns, all self-taught, became the prescribers for the community white noblewomen, who had a great number of servants and people dependent upon them, also developed skills in the art of healing. Educated persons, both men and women, were taught a little “physic” and surgery as part of their schooling. The “nurse” was little more than a ward maid, and there could not have been much real nursing done.
The extremal function for partial bipartite tilings
Creators: name: Grosu, Codrut
name: Hladky, Jan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: For a fixed bipartite graph H and given number c, 0
description: 10 pages
Intricate dynamics of a deterministic walk confined in a strip
Creators: name: Boyer, Denis
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We study the dynamics of a deterministic walk confined in a narrow two-dimensional space randomly filled with point-like targets. At each step, the walker visits the nearest target not previously visited. Complex dynamics is observed at some intermediate values of the domain width, when, while drifting, the walk performs long intermittent backward excursions. As the width is increased, evidence of a transition from ballistic motion to a weakly non-ergodic regime is shown, characterized by sudden inversions of the drift velocity with a probability slowly decaying with time, as $1/t$ at leading order. Excursion durations, first-passage times and the dynamics of unvisited targets follow power-law distributions. For parameter values below this scaling regime, precursory patterns in the form of "wild" outliers are observed, in close relation with the presence of log-oscillations in the probability distributions. We discuss the connections between this model and several evolving biological systems.
description: 6 pages, 5 figures
Additional file 1 of Extracellular matrix stiffness mediates radiosensitivity in a 3D nasopharyngeal carcinoma model
Creators: name: Fang, Yanhua
name: Liang, Shanshan
name: Gao, Jianong
name: Wang, Zhe
name: Li, Cheng
name: Wang, Ruoyu
name: Yu, Weiting
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 1: Fig. S1. The proliferation of CNE-1 cells on different On-Surface 3D matrix stiffness. (A) After successful establishment of the hydrogel adjusting stiffness culture system, the proliferation of CNE-1 cells on different stiffness substrates by colony formation assay were observed. The colony formation on different stiffness substrates under the microscope on the 1st, 3rd, 5th and 7th day (scale bar 100 μm). (B) Colony diameters (*P < 0.05) of CNE-1 cells on different stiffness substrates
Manipulation of Dark States and Control of Coherent Processes with Spectrally Broad Light
Creators: name: Auzinsh, Marcis
name: Bezuglov, Nikolai
name: Miculis, Kaspars
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The formation of dark states under interaction of degenerate atomic states with incoherent broadband radiation (white light) is discussed. A simple coupling scheme in a three level Lambda-system, which allows both qualitative and quantitative analysis is discussed. We found a stationary solution of the optical Bloch equations in a broad excitation line approximation that describes the dynamics of the atom-white light interaction and demonstrated its identity to a conventional dark state created with coherent laser fields. We than examine the efficiency of the population transfer induced by broadband radiation in a model Lambda-system and revealed that high efficiency (attaining 100 percent) of stimulated Raman adiabatic passage-like processes can be achieved with certain temporal control of light polarization. The corresponding criterion of adiabaticity was formulated and justified by means of numerical simulations.
description: 11 pages, 7 figures
Node harvest
Creators: name: Meinshausen, Nicolai
Publisher: name: arXiv
Year: 2009
Subjects: subject: Machine Learning (stat.ML)
subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: When choosing a suitable technique for regression and classification with multivariate predictor variables, one is often faced with a tradeoff between interpretability and high predictive accuracy. To give a classical example, classification and regression trees are easy to understand and interpret. Tree ensembles like Random Forests provide usually more accurate predictions. Yet tree ensembles are also more difficult to analyze than single trees and are often criticized, perhaps unfairly, as `black box' predictors. Node harvest is trying to reconcile the two aims of interpretability and predictive accuracy by combining positive aspects of trees and tree ensembles. Results are very sparse and interpretable and predictive accuracy is extremely competitive, especially for low signal-to-noise data. The procedure is simple: an initial set of a few thousand nodes is generated randomly. If a new observation falls into just a single node, its prediction is the mean response of all training observation within this node, identical to a tree-like prediction. A new observation falls typically into several nodes and its prediction is then the weighted average of the mean responses across all these nodes. The only role of node harvest is to `pick' the right nodes from the initial large ensemble of nodes by choosing node weights, which amounts in the proposed algorithm to a quadratic programming problem with linear inequality constraints. The solution is sparse in the sense that only very few nodes are selected with a nonzero weight. This sparsity is not explicitly enforced. Maybe surprisingly, it is not necessary to select a tuning parameter for optimal predictive accuracy. Node harvest can handle mixed data and missing values and is shown to be simple to interpret and competitive in predictive accuracy on a variety of data sets.
description: Published in at http://dx.doi.org/10.1214/10-AOAS367 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
The DYAMOND Initative
Creators: name: Duras, Julia
name: Ziemen, Florian
name: Klocke, Daniel
Publisher: name: Zenodo
Year: 2021
Subjects: ESiWACE2

description: Extra material of the vPICO presentation given at the EGU GA 2021, session AS4.2, by Julia Duras describing the DYAMOND Initiative.
Additional file 2 of A large deletion conferring pale green leaves of maize
Creators: name: Yao, Guoqi
name: Zhang, Hua
name: Leng, Bingying
name: Cao, Bing
name: Shan, Juan
name: Yan, Zhenwei
name: Guan, Haiying
name: Cheng, Wen
name: Liu, Xia
name: Mu, Chunhua
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2.
Is the ground state of Yang-Mills theory Coulombic?
Creators: name: Heinzl, Thomas
name: Ilderton, Anton
name: Langfeld, Kurt
name: Lavelle, Martin
name: Lutz, Wolfgang
name: McMullan, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study trial states modelling the heavy quark-antiquark ground state in SU(2) Yang-Mills theory. A state describing the flux tube between quarks as a thin string of glue is found to be a poor description of the continuum ground state; the infinitesimal thickness of the string leads to UV artifacts which suppress the overlap with the ground state. Contrastingly, a state which surrounds the quarks with non-abelian Coulomb fields is found to have a good overlap with the ground state for all charge separations. In fact, the overlap increases as the lattice regulator is removed. This opens up the possibility that the Coulomb state is the true ground state in the continuum limit.
description: 10 pages, 9 .eps figures
Energy Spectrum of the Electrons Accelerated by a Reconnection Electric Field: Exponential or Power Law?
Creators: name: Liu, W. J.
name: Chen, P. F.
name: Ding, M. D.
name: Fang, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The direct current (DC) electric field near the reconnection region has been proposed as an effective mechanism to accelerate protons and electrons in solar flares. A power-law energy spectrum was generally claimed in the simulations of electron acceleration by the reconnection electric field. However in most of the literature, the electric and magnetic fields were chosen independently. In this paper, we perform test-particle simulations of electron acceleration in a reconnecting magnetic field, where both the electric and magnetic fields are adopted from numerical simulations of the MHD equations. It is found that the accelerated electrons present a truncated power-law energy spectrum with an exponential tail at high energies, which is analogous to the case of diffusive shock acceleration. The influences of reconnection parameters on the spectral feature are also investigated, such as the longitudinal and transverse components of the magnetic field and the size of the current sheet. It is suggested that the DC electric field alone might not be able to reproduce the observed single or double power-law distributions.
description: 18 pages, 6 figures, published in ApJ
GM-Livox: An Integrated Framework for Large-Scale Map Construction with Multiple Non-repetitive Scanning LiDARs
Creators: name: Wang, Yusheng
name: Lou, Yidong
name: Song, Weiwei
name: Yu, Huan
name: Tu, Zhiyong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: With the ability of providing direct and accurate enough range measurements, light detection and ranging (LiDAR) is playing an essential role in localization and detection for autonomous vehicles. Since single LiDAR suffers from hardware failure and performance degradation intermittently, we present a multi-LiDAR integration scheme in this article. Our framework tightly couples multiple non-repetitive scanning LiDARs with inertial, encoder, and global navigation satellite system (GNSS) into pose estimation and simultaneous global map generation. Primarily, we formulate a precise synchronization strategy to integrate isolated sensors, and the extracted feature points from separate LiDARs are merged into a single sweep. The fused scans are introduced to compute the scan-matching correspondences, which can be further refined by additional real-time kinematic (RTK) measurements. Based thereupon, we construct a factor graph along with the inertial preintegration result, estimated ground constraints, and RTK data. For the purpose of maintaining a restricted number of poses for estimation, we deploy a keyframe based sliding-window optimization strategy in our system. The real-time performance is guaranteed with multi-threaded computation, and extensive experiments are conducted in challenging scenarios. Experimental results show that the utilization of multiple LiDARs boosts the system performance in both robustness and accuracy.
Multi-user Joint Maximum-Likelihood Detection in Uplink NOMA-IoT Networks: Removing the Error Floor
Creators: name: Semira, Hichem
name: Kara, Ferdi
name: Kaya, Hakan
name: Yanikomeroglu, Halim
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The Internet of Things (IoT) framework requires a massive number of connection thus demanding spectral efficient solutions such as Non-Orthogonal Multiple Access (NOMA). However, the main drawback of NOMA with successive interference canceler (SIC)-based detectors is the error floor in the uplink. In this paper, a reliable multi-user detection in uplink IoT NOMA is guaranteed by a Joint Maximum-Likelihood (JML) detector (i.e., optimum detection algorithm). We derive a closed-form upper bound of bit error rate (BER) of JML over Rayleigh fading channels for arbitrary number of IoT devices and an adaptive M-ary phase shift keying (M-PSK). Based on the extensive simulations, the derived expressions are validated and it is revealed that the JML improves the error performance in uplink NOMA and removes the error floor. Furthermore, regardless of the number of the IoT devices and modulation order, a full diversity order (i.e., number of receiving antennas) is guaranteed for each device.
description: accepted in IEEE WCL
Beziehungen wahr-nehmen. Die Kampagne #beziehungsweise als Zeichen für ein christlich-jüdisches Miteinander und gegen Antisemitismus – eine Perspektive aus der Evangelischen Landeskirche in Baden
Creators: name: Müller, Klaus
Publisher: name: Zeitschrift für christlich-jüdische Begegnung im Kontext
Year: 2021

description: Die Evangelische Landeskirche in Baden will im Glauben an Jesus Christus und im Gehorsam ihm gegenüber festhalten, was sie mit der Judenheit verbindet. Sie lebt aus der Verheißung, die zuerst an Israel ergangen ist, und bezeugt Gottes bleibende Erwählung Israels. Sie beugt sich unter die Schuld der Christenheit am Leiden des jüdischen Volkes und verurteilt alle Formen der Judenfeindlichkeit. Kurzum: Die intrinsische Nähe der christlichen Kirche zum Judentum wahrnehmen, festhalten und darum allem Judenfeindlichen wehren! Solche Sätze verstehen sich nicht von selbst. Ein weiter Weg durch die Jahrhunderte musste gegangen werden, bis derlei Aussagen als theologische Grundlagen einer Kirchenverfassung sozusagen ganz weit vorne verankert werden konnten.
description: Zeitschrift für christlich-jüdische Begegnung im Kontext, Nr. 01-02 (2021): 1700 Jahre jüdisches Leben in Deutschland
2021176895-Fractural Nature Complex-2021.pdf
Creators: name: Khamoushi, Kouros
name: Mitic, Vojislav
name: Serpa, Cristina
name: Randjelovic, Branislav
name: Stajcic, Aleksandar
name: Paunovic, Vesna
name: Aleksic, Sanja
name: Vlahovic, Branislav
Publisher: name: figshare
Year: 2021
Subjects: subject: Condensed Matter Physics
subject: FOS: Physical sciences

description: The microstructures properties predicting are based on their materials characteristics. In ceramic materials, regarding higher miniaturization and integrations, the structure analysis is very important. The main contribution of this research is related to relation between perovskites ceramics electronic properties, especially BaTiO3 and NZT-ceramics and structural characteristics. We applied advanced analysis, based on fractal nature and introduced complex fractal correction in defining the very important electromagnetic parameter inductivity (L). The samples consolidation includes both, powder pressing (cold sintering) and hot sintering. The fractal characterization performs very important role from powders up to the final structures, through which exists structure influence on electro-physical and other ceramic properties. We report the experimental results of BaTiO3 and NZT-ceramics processing. Also, this is the first time that we apply complex fractal correction (influence of grains and pore surface and as well as particles Brownian motion) on fundamental thermodynamic temperature in Currie-Weiss law. This application includes the influence of Housdorff dimension (DH) from the microstructure images and connect fractal corrections in Currie-Weiss law, for relative dielectric constant ϵr and magnetic permeability μr. Through ϵr and μr, on this way, for the first time in this scientific area, we present direct relation to inductivity. This complex relation opens quit new advance understanding in structures and parameters in area of ferroelectric-magnetic applications in telecommunications, by introducing the fractals.
Optical polarimetry toward the Pipe nebula: Revealing the importance of the magnetic field
Creators: name: Alves, F. O.
name: Franco, G. A. P.
name: Girart, J. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Magnetic fields are proposed to play an important role in the formation and support of self-gravitating clouds and the formation and evolution of protostars in such clouds. We use R-band linear polarimetry collected for about 12000 stars in 46 fields with lines of sight toward the Pipe nebula to investigate the properties of the polarization across this dark cloud complex. Mean polarization vectors show that the magnetic field is locally perpendicular to the large filamentary structure of the Pipe nebula (the `stem'), indicating that the global collapse may have been driven by ambipolar diffusion. The polarization properties clearly change along the Pipe nebula. The northwestern end of the nebula (B59 region) is found to have a low degree of polarization and high dispersion in polarization position angle, while at the other extreme of the cloud (the `bowl') we found mean degrees of polarization as high as $\approx$15% and a low dispersion in polarization position angle. The plane of the sky magnetic field strength was estimated to vary from about 17 $μ$G in the B59 region to about 65 $μ$G in the bowl. We propose that three distinct regions exist, which may be related to different evolutionary states of the cloud; this idea is supported by both the polarization properties across the Pipe and the estimated mass-to-flux ratio that varies between approximately super-critical toward the B59 region and sub-critical inside the bowl. The three regions that we identify are: the B59 region, which is currently forming stars; the stem, which appears to be at an earlier stage of star formation where material has been through a collapsing phase but not yet given birth to stars; and the bowl, which represents the earliest stage of the cloud in which the collapsing phase and cloud fragmentation has already started.
description: 4 pages, 2 figures
Il diavolo si annida negli esempi. Su teoria letteraria e comparatistica nei programmi del biennio dei licei
Creators: name: Veneri, Toni
Publisher: name: Università degli Studi di Cagliari
Year: 2014

description: A dispetto della posizione strategica che occupa nel percorso formativo, l’insegnamento dell’italiano nel primo biennio dei licei appare svantaggiato rispetto ai ben più definiti tempi didattici che lo precedono e lo seguono. Alla genericità delle indicazioni ministeriali si aggiunge la mancanza di un apprezzabile dibattito sui contenuti, che sia paragonabile a quello che circonda il programma del triennio e si rifletta in proposte editoriali altrettanto diversificate e impegnate. Forme eterogenee di colonizzazione hanno così permesso la convivenza di discorsi e di retoriche, i cui presupposti ed esiti non di rado entrano in contraddizione. A partire dal fatto che tale programma vede da una parte la riduzione del canone letterario occidentale a materiale di esercizio per l’analisi testuale, oggetto di verifica e conferma di leggi e procedimenti che sembrano regolarne più che descriverne il funzionamento; dall’altra prevede un’attenzione, caricata dei più alti valori etici ed estetici, per alcuni testi considerati fondativi della cultura europea e nazionale. Il presente intervento vuole innanzitutto attirare l’attenzione sulla mancata complementarietà degli approcci e sulle sue problematiche implicazioni. Una seconda ragione di riflessione sarà di ordine disciplinare: ad usare la lente accademica, ben poco di quanto si trasmette in termini di letteratura in questi due anni ricade nel campo disciplinare dell’italianistica. Da una parte il frequente ricorso – seppur in forma di esempi dati in traduzione – ad opere di varia provenienza di fatto si formula come pratica comparativa; dall’altra gli elementi che forniscono gli strumenti e le categorie dell’analisi letteraria sono anch’essi di origine composita, attingendo tanto alle tassonomie tradizionali del sapere umanistico (retorica, metrica, stilistica), quanto ai risultati più schematizzabili di una stagione e un orientamento teorico circoscritti (lo strutturalismo). L’arena accademica si è da tempo fatta carico di evidenziare i limiti, le debolezze e le implicazioni di tali risultati; tuttavia, salvo rari casi, nessuna revisione sembra averne finora sostanzialmente alterato la presenza nei manuali. Una revisione che potrebbe partire proprio da una rivalutazione delle categorie tradizionalmente associate alla retorica , da intendersi non come fatti puramente tecnici, ma come momenti cruciali di un più ampio processo interpretativo.
description: Between, Vol 4, N° 7 (2014): Poteri della retorica
Future of insurance
Creators: name: Eyler, Inez
Publisher: name: University of Oregon
Year: 1932
Subjects: Insurance, Life
Pregnancy

description: A brief Survey of the growth of obstetrical knowledge should be of value in influencing the pregnant woman to take advantage of the care offered by reputable obstetricians. The rapid growth made in the last few years has made childbearing a relatively safe undertaking for any woman who is interested in having a child or children. The hazards that women braved and undertaking the greatest adventure of any normal life. Have been appalling and should not be allowed to continue in this age of increasing knowledge. Many of the fatal complications of a few years ago can now be prevented or corrected if adequate care is obtained early in the pregnancy. The present movements for better care are of interest to every parent and should not be ignored or unrecognized because of lack of acquaintance with them.
Why Lottery Ticket Wins? A Theoretical Perspective of Sample Complexity on Pruned Neural Networks
Creators: name: Zhang, Shuai
name: Wang, Meng
name: Liu, Sijia
name: Chen, Pin-Yu
name: Xiong, Jinjun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: The \textit{lottery ticket hypothesis} (LTH) states that learning on a properly pruned network (the \textit{winning ticket}) improves test accuracy over the original unpruned network. Although LTH has been justified empirically in a broad range of deep neural network (DNN) involved applications like computer vision and natural language processing, the theoretical validation of the improved generalization of a winning ticket remains elusive. To the best of our knowledge, our work, for the first time, characterizes the performance of training a pruned neural network by analyzing the geometric structure of the objective function and the sample complexity to achieve zero generalization error. We show that the convex region near a desirable model with guaranteed generalization enlarges as the neural network model is pruned, indicating the structural importance of a winning ticket. Moreover, when the algorithm for training a pruned neural network is specified as an (accelerated) stochastic gradient descent algorithm, we theoretically show that the number of samples required for achieving zero generalization error is proportional to the number of the non-pruned weights in the hidden layer. With a fixed number of samples, training a pruned neural network enjoys a faster convergence rate to the desired model than training the original unpruned one, providing a formal justification of the improved generalization of the winning ticket. Our theoretical results are acquired from learning a pruned neural network of one hidden layer, while experimental results are further provided to justify the implications in pruning multi-layer neural networks.
Epidemic Management with Admissible and Robust Invariant Sets
Creators: name: Esterhuizen, Willem
name: Lévine, Jean
name: Streif, Stefan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Biological sciences
subject: 34H05 (primary), 92D30 (secondary), 37N35, 37N25

description: We present a detailed set-based analysis of the well-known SIR and SEIR epidemic models subjected to hard caps on the proportion of infective individuals, and bounds on the allowable intervention strategies, such as social distancing, quarantining and vaccination. We describe the admissible and maximal robust positively invariant (MRPI) sets of these two models via the theory of barriers. We show how the sets may be used in the management of epidemics, for both perfect and imperfect/uncertain models, detailing how intervention strategies may be specified such that the hard infection cap is never breached, regardless of the basic reproduction number. The results are clarified with detailed examples.
description: 28 pages, 5 figures, accepted for publication in PLOS ONE
The largest arthropod in Earth history: insights from newly discovered Arthropleura remains (Serpukhovian Stainmore Formation, Northumberland, England)
Creators: name: Davies, Neil S.
name: Garwood, Russell J.
name: McMahon, William J.
name: Schneider, Joerg W.
name: Shillito, Anthony P.
Publisher: name: Geological Society of London
Year: 2021
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Images of 3D mesh model of Arthropleura.
K-causality coincides with stable causality
Creators: name: Minguzzi, E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is proven that K-causality coincides with stable causality, and that in a K-causal spacetime the relation K^+ coincides with the Seifert's relation. As a consequence the causal relation "the spacetime is strongly causal and the closure of the causal relation is transitive" stays between stable causality and causal continuity.
description: 11 pages, 2 figures
On automorphisms of the double cover of a circulant graph
Creators: name: Hujdurović, Ademir
name: Mitrović, Đorđe
name: Morris, Dave Witte
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C25, 05C76

description: A graph $X$ is said to be "unstable" if the direct product $X \times K_2$ (also called the canonical double cover of $X$) has automorphisms that do not come from automorphisms of its factors $X$ and $K_2$. It is "nontrivially unstable" if it is unstable, connected, and nonbipartite, and no two distinct vertices of X have exactly the same neighbors. We find three new conditions that each imply a circulant graph is unstable. (These yield infinite families of nontrivially unstable circulant graphs that were not previously known.) We also find all of the nontrivially unstable circulant graphs of order $2p$, where $p$ is any prime number. Our results imply that there does not exist a nontrivially unstable circulant graph of order $n$ if and only if either $n$ is odd, or $n < 8$, or $n = 2p$, for some prime number $p$ that is congruent to $3$ modulo $4$.
description: 25 pages (plus 8 pages of notes to aid the referee). Ancillary files include lists of the nontrivially unstable circulant graphs of order at most 50, together with MAGMA, sagemath, and Maple code to find these graphs
Feynman's Propagator in Schwinger's picture of Quantum Mechanics
Creators: name: Ciaglia, Florio M.
name: Di Cosmo, Fabio
name: Ibort, Alberto
name: Marmo, Giuseppe
name: Schiavone, Luca
name: Zampini, Alessandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A novel derivation of Feynman's sum-over-histories construction of the quantum propagator using the groupoidal description of Schwinger picture of Quantum Mechanics is presented. It is shown that such construction corresponds to the GNS representation of a natural family of states called Dirac-Feynman-Schwinger (DFS) states. Such states are obtained from a q-Lagrangian function $\ell$ on the groupoid of configurations of the system. The groupoid of histories of the system is constructed and the q-Lagrangian $\ell$ allow to define a DFS state on the algebra of the groupoid. The particular instance of the groupoid of pairs of a Riemannian manifold serves to illustrate Feynman's original derivation of the propagator for a point particle described by a classical Lagrangian $L$.
description: 16 pages
Hierarchical Power Flow Control in Smart Grids: Enhancing Rotor Angle and Frequency Stability with Demand-Side Flexibility
Creators: name: Duan, Chao
name: Chakraborty, Pratyush
name: Nishikawa, Takashi
name: Motter, Adilson E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: Large-scale integration of renewables in power systems gives rise to new challenges for keeping synchronization and frequency stability in volatile and uncertain power flow states. To ensure the safety of operation, the system must maintain adequate disturbance rejection capability at the time scales of both rotor angle and system frequency dynamics. This calls for flexibility to be exploited on both the generation and demand sides, compensating volatility and ensuring stability at the two separate time scales. This article proposes a hierarchical power flow control architecture that involves both transmission and distribution networks as well as individual buildings to enhance both small-signal rotor angle stability and frequency stability of the transmission network. The proposed architecture consists of a transmission-level optimizer enhancing system damping ratios, a distribution-level controller following transmission commands and providing frequency support, and a building-level scheduler accounting for quality of service and following the distribution-level targets. We validate the feasibility and performance of the whole control architecture through real-time hardware-in-loop tests involving real-world transmission and distribution network models along with real devices at the Stone Edge Farm Microgrid.
description: To appear in IEEE Transactions on Control of Network Systems
Quantum control theory and applications: A survey
Creators: name: Dong, Daoyi
name: Petersen, Ian R
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Systems and Control (eess.SY)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents a survey on quantum control theory and applications from a control systems perspective. Some of the basic concepts and main developments (including open-loop control and closed-loop control) in quantum control theory are reviewed. In the area of open-loop quantum control, the paper surveys the notion of controllability for quantum systems and presents several control design strategies including optimal control, Lyapunov-based methodologies, variable structure control and quantum incoherent control. In the area of closed-loop quantum control, the paper reviews closed-loop learning control and several important issues related to quantum feedback control including quantum filtering, feedback stabilization, LQG control and robust quantum control.
description: 38 pages, invited survey paper from a control systems perspective, some references are added, published version
From dS to AdS and back
Creators: name: Sleight, Charlotte
name: Taronna, Massimo
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We describe in more detail the general relation uncovered in our previous work between boundary correlators in de Sitter (dS) and in Euclidean anti-de Sitter (EAdS) space, at any order in perturbation theory. Assuming the Bunch-Davies vacuum at early times, any given diagram contributing to a boundary correlator in dS can be expressed as a linear combination of Witten diagrams for the corresponding process in EAdS, where the relative coefficients are fixed by consistent on-shell factorisation in dS. These coefficients are given by certain sinusoidal factors which account for the change in coefficient of the contact sub-diagrams from EAdS to dS, which we argue encode (perturbative) unitary time evolution in dS. dS boundary correlators with Bunch-Davies initial conditions thus perturbatively have the same singularity structure as their Euclidean AdS counterparts and the identities between them allow to directly import the wealth of techniques, results and understanding from AdS to dS. This includes the Conformal Partial Wave expansion and, by going from single-valued Witten diagrams in EAdS to Lorentzian AdS, the Froissart-Gribov inversion formula. We give a few (among the many possible) applications both at tree and loop level. Such identities between boundary correlators in dS and EAdS are made manifest by the Mellin-Barnes representation of boundary correlators, which we point out is a useful tool in its own right as the analogue of the Fourier transform for the dilatation group. The Mellin-Barnes representation in particular makes manifest factorisation and dispersion formulas for bulk-to-bulk propagators in (EA)dS, which imply Cutkosky cutting rules and dispersion formulas for boundary correlators in (EA)dS. Our results are completely general and in particular apply to any interaction of (integer) spinning fields.
description: 82 pages, 19 figures. v2: typos fixed
Improved Heatmap-based Landmark Detection
Creators: name: Yao, Huifeng
name: Guo, Ziyu
name: Zhang, Yatao
name: Li, Xiaomeng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Mitral valve repair is a very difficult operation, often requiring experienced surgeons. The doctor will insert a prosthetic ring to aid in the restoration of heart function. The location of the prosthesis' sutures is critical. Obtaining and studying them during the procedure is a valuable learning experience for new surgeons. This paper proposes a landmark detection network for detecting sutures in endoscopic pictures, which solves the problem of a variable number of suture points in the images. Because there are two datasets, one from the simulated domain and the other from real intraoperative data, this work uses cycleGAN to interconvert the images from the two domains to obtain a larger dataset and a better score on real intraoperative data. This paper performed the tests using a simulated dataset of 2708 photos and a real dataset of 2376 images. The mean sensitivity on the simulated dataset is about 75.64% and the precision is about 73.62%. The mean sensitivity on the real dataset is about 50.23% and the precision is about 62.76%. The data is from the AdaptOR MICCAI Challenge 2021, which can be found at https://zenodo.org/record/4646979\#.YO1zLUxCQ2x.
description: Accepted by MICCAI2021 workshop
Voltage-current and voltage-flux characteristics of asymmetric high TC DC SQUIDs
Creators: name: Novikov, I. L.
name: Greenberg, Ya. S.
name: Schultze, V.
name: IJsselsteijn, R.
name: Meyer, H. -G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report measurements of transfer functions and flux shifts of 20 on-chip high T$_C$ DC SQUIDs half of which were made purposely geometrically asymmetric. All of these SQUIDs were fabricated using standard high T$_C$ thin film technology and they were single layer ones, having 140 nm thickness of YBa$_2$Cu$_3$O$_{7-x}$ film deposited by laser ablation onto MgO bicrystal substrates with 24$^0$ misorientation angle. For every SQUID the parameters of its intrinsic asymmetry, i. e., the density of critical current and resistivity of every junction, were measured directly and independently. We showed that the main reason for the on-chip spreading of SQUIDs' voltage-current and voltage-flux characteristics was the intrinsic asymmetry. We found that for SQUIDs with a relative large inductance ($L>120 $ pH) both the voltage modulation and the transfer function were not very sensitive to the junctions asymmetry, whereas SQUIDs with smaller inductance ($L\simeq 65-75 $ pH) were more sensitive. The results obtained in the paper are important for the implementation in the sensitive instruments based on high T$_C$ SQUID arrays and gratings.
description: 11 pages, 4 tables, 17 figures This version is substantially modified. The Introduction and Section 2 are completely rewritten, while experimental part is mainly the same as in previous version
Locally analytic vectors of some crystabelian representations of GL_2(Qp)
Creators: name: Liu, Ruochuan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Number Theory (math.NT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 11F

description: For V a 2-dimensional p-adic representation of G_Qp, we denote by B(V) the admissible unitary representation of GL_2(Qp) attached to V under the p-adic local Langlands correspondence of GL_2(Qp) initiated by Breuil. In this article, building on the works of Berger-Breuil and Colmez, we determine the locally analytic vectors B(V)an of B(V) when V is irreducible, crystabelian and Frobenius semi-simple with Hodge-Tate weights (0,k-1) for some integer k>=2; this proves a conjecture of Breuil. Using this result, we verify Emerton's conjecture that dim Ref^{η\otimesψ}(V)=dim Exp^{η|\cdot|\otimes xψ}(B(V)an\otimes(x|\cdot|\circ\det)) for those V which are irreducible, crystabelian and not exceptional.
description: Refereed version. Title is changed. Minor changes in the content