cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Topological phases in small quantum Hall samples
Creators: name: Graß, Tobias
name: Juliá-Díaz, Bruno
name: Lewenstein, Maciej
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Topological order has proven a useful concept to describe quantum phase transitions which are not captured by the Ginzburg-Landau type of symmetry-breaking order. However, lacking a local order parameter, topological order is hard to detect. One way to detect is via direct observation of anyonic properties of excitations which are usually discussed in the thermodynamic limit, but so far has not been realized in macroscopic quantum Hall samples. Here we consider a system of few interacting bosons subjected to the lowest Landau level by a gauge potential, and theoretically investigate vortex excitations in order to identify topological properties of different ground states. Our investigation demonstrates that even in surprisingly small systems anyonic properties are able to characterize the topological order. In addition, focusing on a system in the Laughlin state, we study the robustness of its anyonic behavior in the presence of tunable finite-range interactions acting as a perturbation. A clear signal of a transition to a different state is reflected by the system's anyonic properties.
ProstAttention-Net: A deep attention model for prostate cancer segmentation by aggressiveness in MRI scans
Creators: name: Duran, Audrey
name: Dussert, Gaspard
name: Rouvière, Olivier
name: Jaouen, Tristan
name: Jodoin, Pierre-Marc
name: Lartizien, Carole
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Multiparametric magnetic resonance imaging (mp-MRI) has shown excellent results in the detection of prostate cancer (PCa). However, characterizing prostate lesions aggressiveness in mp-MRI sequences is impossible in clinical practice, and biopsy remains the reference to determine the Gleason score (GS). In this work, we propose a novel end-to-end multi-class network that jointly segments the prostate gland and cancer lesions with GS group grading. After encoding the information on a latent space, the network is separated in two branches: 1) the first branch performs prostate segmentation 2) the second branch uses this zonal prior as an attention gate for the detection and grading of prostate lesions. The model was trained and validated with a 5-fold cross-validation on an heterogeneous series of 219 MRI exams acquired on three different scanners prior prostatectomy. In the free-response receiver operating characteristics (FROC) analysis for clinically significant lesions (defined as GS > 6) detection, our model achieves 69.0% $\pm$14.5% sensitivity at 2.9 false positive per patient on the whole prostate and 70.8% $\pm$14.4% sensitivity at 1.5 false positive when considering the peripheral zone (PZ) only. Regarding the automatic GS group
Kinematics and excitation of the nuclear spiral in the active galaxy Arp 102B
Creators: name: Couto, Guilherme S.
name: Storchi-Bergmann, Thaisa
name: Axon, David J.
name: Robinson, Andrew
name: Kharb, Preeti
name: Riffel, Rogemar A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a two-dimensional analysis of the gaseous excitation and kinematics of the inner 2.5 x 1.7 kpc^2 of the LINER/Seyfert 1 galaxy Arp 102B, from optical spectra obtained with the GMOS integral field spectrograph on the Gemini North telescope at a spatial resolution of 250 pc. Emission-line flux maps show the same two-armed nuclear spiral we have discovered in previous observations with the HST-ACS camera. One arm reaches 1 kpc to the east and the other 500 pc to the west, with a 8.4 GHz VLA bent radio jet correlating with the former. The gas density is highest (500 - 900 cm^(-3)) at the nucleus and in the northern border of the east arm, at a region where the radio jet seems to be deflected. Channel maps show blueshifts but also some redshifts at the eastern arm and jet location which can be interpreted as originated in the front and back walls of an outflow pushed by the radio jet, suggesting also that the outflow is launched close to the plane of the sky. We estimate a mass outflow rate along the east arm of 0.26 - 0.32 Msun yr^(-1) (depending on the assumed outflow geometry), which is between one and two orders of magnitude higher than the mass accretion rate to the active nucleus, implying that there is mass-loading of the nuclear outflow from circumnuclear gas. The power of this outflow is 0.06 - 0.3%Lbol. We propose a scenario in which gas has been recently captured by Arp 102B in an interaction with Arp 102A, settling in a disk rotating around the nucleus of Arp 102B and triggering its nuclear activity. A nuclear jet is pushing the circumnuclear gas, giving origin to the nuclear arms. A blueshifted emitting gas knot is observed at 300 pc south-east from the nucleus and can be interpreted as another (more compact) outflow, with a possible counterpart to the north-west.
description: 20 pages, 13 figures, 1 table; accepted by MNRAS
Schur Complement Trick for Positive Semi-definite Energies
Creators: name: Jacobson, Alec S.
Publisher: name: Columbia University
Year: 2014
Subjects: Computer science

description: The Schur complement trick appears sporadically in numerical optimization methods [Schur 1917; Cottle 1974]. The trick is especially useful for solving Lagrangian saddle point problems when minimizing quadratic energies subject to linear equality constraints [Gill et al. 1987]. Typically, to apply the trick, the energy's Hessian is assumed positive definite. I generalize this technique for positive semi-definite Hessians.
title: Les interventions en ergothérapie dans le domaine de la parentalité
title: Les interventions en ergothérapie dans le domaine de la parentalité
titleType: AlternativeTitle
Creators: name: Graells, Nine
name: Jeker, Mara
name: Koenitzer, Emilie
Publisher: name: Unknown
Year: 0
Subjects: subject: Parentalité
subject: Ergothérapie
subject: Intervention

description: Introduction : La parentalité est une étape de vie qui touche une grande partie de la population. Cette transition peut être vécue de manière très différente entre chaque personne. Divers professionnels peuvent intervenir auprès des récents parents pour les accompagner dans ce nouveau rôle. Cependant, l’ergothérapeute intervient peu auprès des parents ou des enfants qui ne sont pas porteurs d’un handicap. Pourtant, au vu des difficultés et besoins exprimés par les parents, l’ergothérapeute aurait un rôle important à jouer dans cet accompagnement du fait de ses connaissances et compétences professionnelles. But : Les buts de ce travail consistent à répertorier les interventions ergothérapeutiques dans le domaine de la parentalité et d’examiner le rôle potentiel que l’ergothérapeute peut avoir lors de l’accompagnement à la parentalité. Méthode : Cette étude qualitative a été réalisée avec un design descriptif-interprétatif. La première partie comprenant l’étude de la portée a permis l’analyse de plusieurs articles ressortant des bases de données : Google scholar, Pubmed, Cochrane library (n=16). La deuxième partie sollicite les connaissances d’ergothérapeutes concernant les interventions potentielles en Suisse par le biais d’un groupe de discussion focalisé. Ce dernier s’est déroulé avec des ergothérapeutes travaillant principalement dans le domaine de la pédiatrie (n=6). Résultats : La recension des écrits a mis en évidence des axes de pratique potentiels pour les ergothérapeutes dans le domaine de la parentalité. Ceci a été discuté et complété par les participantes du groupe de discussion focalisé. Il en est ressorti que les ergothérapeutes sont des professionnels de santé pouvant intervenir auprès des parents à la fois sur l’acquisition du nouveau rôle, sur la problématique des troubles musculo-squelettiques et sur l’adaptation de l’environnement. Les lieux de pratique des ergothérapeutes sont encore à définir. De plus, l’accessibilité aux parents par les thérapeutes est à préciser. Un manque de pratique auprès des parents sains éprouvant des difficultés dans la parentalité est mis en avant. Conclusion : Les résultats ont montré que peu d’interventions en ergothérapie auprès des parents et enfants non porteurs d’un handicap existent actuellement. Cependant, plusieurs articles démontrent différentes interventions possibles dans ce domaine ainsi que le besoin exprimé par de nombreux parents lors de cette transition. Suite au groupe de discussion focalisé, les échanges ont appuyé le manque d’interventions ergothérapeutiques dans l’accompagnement à la parentalité et la nécessité de développer la pratique dans cette direction. [Résumé des auteures]
Bounds on quantum process fidelity from minimum required number of quantum state fidelity measurements
Creators: name: Fiurasek, Jaromir
name: Sedlak, Michal
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: To certify that an experimentally implemented quantum transformation is a certain unitary operation U on a d-dimensional Hilbert space, it suffices to determine fidelities of output states for d+1 suitably chosen pure input states [Reich et al., Phys. Rev. A 88, 042309 (2013)]. The set of these d+1 probe states can consist of d orthogonal states that form a basis and one additional state which is a balanced superposition of all d basis states. Here we provide an analytical lower bound on quantum process fidelity for two-qubit quantum gates which results from the knowledge of average state fidelity for the basis states and the fidelity of the superposition state. We compare this bound with the Hofmann bound that is based on knowledge of average state fidelities for two mutually unbiased bases. We also discuss possible extension of our findings to N-qubit operations.
description: 7 pages, 2 figures
The role of species abundance in determining breeding origins of migratory birds with stable isotopes
Creators: name: Royle, J. Andrew
name: Rubenstein, Dustin Reid
Publisher: name: Columbia University
Year: 2004
Subjects: subject: Conservation biology
subject: Ecology
subject: FOS: Biological sciences

description: Understanding the breeding origins of migratory birds captured on their wintering grounds has important management and conservation implications for declining populations of songbirds. Stable isotopes have recently been used to infer origins for species where application of conventional markers fails. A natural method of linking wintering birds to breeding populations, and one that has not been previously applied to stable isotopes, is based on likelihood. Using a likelihood assignment rule, birds are associated with the breeding population under which their realized isotope signature is most likely to have been generated. We report the first illustration of using likelihood-based assignment with stable isotope data. Moreover, within a probability-based framework for assignment, we argue that a more natural formulation of the assignment problem should be based on the probability of origin given the observed data, or the posterior probability of origin. The relationship between posterior assignment and that based on simple likelihood is embodied in Bayes Rule, which establishes a clear linkage between the distribution of the breeding population (i.e., relative abundance) and probability of origin. We demonstrate likelihood and posterior assignment using a large data set on Black-throated Blue Warblers (Dendroica caerulescens). Our results suggest that relative abundance is likely to be a more crucial consideration in the presence of less geographically structured isotopes, when the distribution of abundance is highly non-uniform, or when the range of the species is geographically restricted.
Merger Driven Explosive Evolution of Distant Galaxies (Minor Mergers)
Creators: name: Kats, A. V.
name: Kontorovich, V. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We derived solutions for the Smoluchowski kinetic equation for the mass function of galaxies, which describes mergers in differential approximation, where mergers with low-mass galaxies are the dominant factor. The evolution of the initial distribution is analyzed as well as the influence of the source represented by galaxies (halos) that separate from the global cosmological expansion. It is shown that the evolution of the slope of the power-law part of the luminosity function at a constant mass-to-luminosity ratio observed in the Ultra Deep Hubble Field can be described as a result of explosive evolution driven by galaxy mergers. In this case the exponent depends exclusively on the uniformity degree of merger probability as a function of mass.
description: 25 pages, 5 Postscript figures; The Report on the International Conference "Astroparticle Physics, Gravitation and Cosmology", Kyiv, Ukraine, 2012. Book of Abstracts, p. 14. Published in Astrophysical Bulletin, 2013, Volume 68, Issue 3
Temporal but not spatial environmental variation drives adaptive offspring sex allocation in a plural cooperative breeder
Creators: name: Rubenstein, Dustin Reid
Publisher: name: Columbia University
Year: 2007
Subjects: Evolution (Biology)
Biology

description: Cooperatively breeding birds have been used frequently to study sex allocation because the adaptive value of the sexes partly depends upon the costs and benefits for parents of receiving help. I examined patterns of directional sex allocation in relation to maternal condition (Trivers‐Willard hypothesis), territory quality (helper competition hypothesis), and the number of available helpers (helper repayment hypothesis) in the superb starling, Lamprotornis superbus, a plural cooperative breeder with helpers of both sexes. Superb starlings biased their offspring sex ratio in relation to prebreeding rainfall, which was correlated with maternal condition. Mothers produced relatively more female offspring in wetter years, when they were in better condition, and more male offspring in drier years, when they were in poorer condition. There was no relationship between offspring sex ratio and territory quality or the number of available helpers. Although helping was male biased, females had a greater variance in reproductive success than males. These results are consistent with the Trivers‐Willard hypothesis and suggest that although females in most cooperatively breeding species make sex allocation decisions to increase their future direct reproductive success, female superb starlings appear to base this decision on their current body condition to increase their own inclusive fitness.
Effects of Edge Oxidation on the Structural, Electronic, and Magnetic Properties of Zigzag Boron Nitride Nanoribbons
Creators: name: Krepel, Dana
name: Hod, Oded
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The effects of edge chemistry on the relative stability and electronic properties of zigzag boron nitride nanoribbons (ZBNNRs) are investigated. Among all functional groups considered, fully hydroxylated ZBNNRs are found to be the most energetically stable. When an in-plane external electric field is applied perpendicular to the axis of both hydrogenated and hydroxylated ZBNNRs, a spin-polarized half-metallic state is induced, whose character is different than that predicted for ZGNRs. The onset field for achieving the half-metallic state is found to mainly depend on the width of the ribbon. Our results indicate that edge functionalization of ZBNNRs may open the way for the design of new nano-electronic and nano-spintronic devices.
Model Aggregation for Distributed Content Anomaly Detection
Creators: name: Whalen, Sean
name: Boggs, Nathaniel Gordon
name: Stolfo, Salvatore
Publisher: name: Columbia University
Year: 2014
Subjects: Computer science

description: Cloud computing offers a scalable, low-cost, and resilient platform for critical applications. Securing these applications against attacks targeting unknown vulnerabilities is an unsolved challenge. Network anomaly detection addresses such zero-day attacks by modeling attributes of attack-free application traffic and raising alerts when new traffic deviates from this model. Content anomaly detection (CAD) is a variant of this approach that models the payloads of such traffic instead of higher level attributes. Zero-day attacks then appear as outliers to properly trained CAD sensors. In the past, CAD was unsuited to cloud environments due to the relative overhead of content inspection and the dynamic routing of content paths to geographically diverse sites. We challenge this notion and introduce new methods for efficiently aggregating content models to enable scalable CAD in dynamically-pathed environments such as the cloud. These methods eliminate the need to exchange raw content, drastically reduce network and CPU overhead, and offer varying levels of content privacy. We perform a comparative analysis of our methods using Random Forest, Logistic Regression, and Bloom Filter-based classifiers for operation in the cloud or other distributed settings such as wireless sensor networks. We find that content model aggregation offers statistically significant improvements over non-aggregate models with minimal overhead, and that distributed and non-distributed CAD have statistically indistinguishable performance. Thus, these methods enable the practical deployment of accurate CAD sensors in a distributed attack detection infrastructure.
MPEC 2023-V94 : 2023 VW2
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 VW2

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Global aviation contrail climate effects from 2019 to 2021
Creators: name: Teoh, Roger
name: Engberg, Zebediah
name: Schumann, Ulrich
name: Voigt, Christiane
name: Shapiro, Marc
name: Rohs, Susanne
name: Stettler, Marc
Publisher: name: Forschungzentrum Jülich
Year: 2023

description: doi:10.5194/egusphere-2023-1859
Pairwise hydrodynamic interactions and diffusion in a vesicle suspension
Creators: name: Gires, Pierre-Yves
name: Srivastav, Aparna
name: Misbah, Chaouqi
name: Podgorski, Thomas
name: Coupier, Gwennou
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: The hydrodynamic interaction of two deformable vesicles in shear flow induces a net displacement, in most cases an increase of their distance in the transverse direction. The statistical average of these interactions leads to shear-induced diffusion in the suspension, both at the level of individual particles which experience a random walk made of successive interactions, and at the level of suspension where a non-linear down-gradient diffusion takes place, an important ingredient in the structuring of suspension flows. We make an experimental and computational study of the interaction of a pair of lipid vesicles in shear flow by varying physical parameters, and investigate the decay of the net lateral displacement with the distance between the streamlines on which the vesicles are initially located. This decay and its dependency upon vesicle properties can be accounted for by a simple model based on the well established law for the lateral drift of a vesicle in the vicinity of a wall. In the semi-dilute regime, a determination of self-diffusion coefficients is presented.
Discriminative topological features reveal biological network mechanisms
Creators: name: Middendorf, Manuel
name: Ziv, Etay
name: Adams, Carter
name: Hom, Jennifer C.
name: Koytcheff, Robin
name: Levovitz, Chaya
name: Woods, Gregory
name: Chen, Linda
name: Wiggins, Chris H.
Publisher: name: Columbia University
Year: 2004
Subjects: subject: Bioinformatics
subject: FOS: Computer and information sciences
subject: Genetics
subject: FOS: Biological sciences
subject: Biological models

description: Background: Recent genomic and bioinformatic advances have motivated the development of numerous network models intending to describe graphs of biological, technological, and sociological origin. In most cases the success of a model has been evaluated by how well it reproduces a few key features of the real-world data, such as degree distributions, mean geodesic lengths, and clustering coefficients. Often pairs of models can reproduce these features with indistinguishable fidelity despite being generated by vastly different mechanisms. In such cases, these few target features are insufficient to distinguish which of the different models best describes real world networks of interest; moreover, it is not clear a priori that any of the presently-existing algorithms for network generation offers a predictive description of the networks inspiring them. Results: We present a method to assess systematically which of a set of proposed network generation algorithms gives the most accurate description of a given biological network. To derive discriminative classifiers, we construct a mapping from the set of all graphs to a high-dimensional (in principle infinite-dimensional) "word space". This map defines an input space for classification schemes which allow us to state unambiguously which models are most descriptive of a given network of interest. Our training sets include networks generated from 17 models either drawn from the literature or introduced in this work. We show that different duplication-mutation schemes best describe the E. coli genetic network, the S. cerevisiae protein interaction network, and the C. elegans neuronal network, out of a set of network models including a linear preferential attachment model and a small-world model. Conclusions: Our method is a first step towards systematizing network models and assessing their predictability, and we anticipate its usefulness for a number of communities.
Demonstration of improved sensitivity of echo interferometers to gravitational acceleration
Creators: name: Mok, C.
name: Barrett, B.
name: Carew, A.
name: Berthiaume, R.
name: Beattie, S.
name: Kumarakrishnan, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We have developed two configurations of an echo interferometer that rely on standing wave excitation of a laser-cooled sample of rubidium atoms that measures acceleration. For a two-pulse configuration, the interferometer signal is modulated at the recoil frequency and exhibits a sinusoidal frequency chirp as a function of pulse spacing. For a three-pulse stimulated echo configuration, the signal is observed without recoil modulation and exhibits a modulation at a single frequency. The three-pulse configuration is less sensitive to effects of vibrations and magnetic field curvature leading to a longer experimental timescale. For both configurations of the atom interferometer (AI), we show that a measurement of acceleration with a statistical precision of 0.5% can be realized by analyzing the shape of the echo envelope that has a temporal duration of a few microseconds. Using the two-pulse AI, we obtain measurements of acceleration that are statistically precise to 6 parts per million (ppm) on a 25 ms timescale. Using the three-pulse AI, we obtain measurements of acceleration that are statistically precise to 0.4 ppm on a timescale of 50 ms. A further statistical enhancement is achieved by analyzing the data across the echo envelope to improve the statistical precision to 75 parts per billion (ppb). We discuss methods for reducing prominent systematic effects due to a magnetized vacuum chamber and improving the signal-to-noise ratio. Simulations of both AI configurations with a timescale of 300 ms reached in a non-magnetic vacuum chamber suggest that an optimized experiment with improved vibration isolation and atoms selected in the mF = 0 state can result in measurements of g statistically precise to 0.3 pbb for the two-pulse AI and 0.6 ppb for the three-pulse AI.
description: 17 pages, 9 figures, 3 tables
Mysterious Checks from Mauborgne to Fabyan
Creators: name: Bellovin, Steven Michael
Publisher: name: Columbia University
Year: 2014
Subjects: Computer science

description: It has long been known that George Fabyan's Riverbank Laboratories provided the U.S. military with cryptanalytic and training services during World War~I. The relationship has always be seen as voluntary. Newly discovered evidence suggests that Fabyan was in fact paid, at least in part, for his services.
Magnetic AC control of the spin textures in a helical Luttinger liquid
Creators: name: Dolcetto, Giacomo
name: Cavaliere, Fabio
name: Sassetti, Maura
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We demonstrate the possibility to induce and control peculiar spin textures in a helical Luttinger liquid, by means of a time-dependent magnetic scatterer. The presence of a perturbation that breaks the time-reversal symmetry opens a gap in the spectrum, inducing single-particle backscattering and a peculiar spin response. We show that in the weak backscattering regime asymmetric spin textures emerge at the left and right side of the scatterer, whose spatial oscillations are controlled by the ratio between the magnetization frequency and the Fermi energy and by the electron interaction. This peculiar spin response marks a strong difference between helical and non-helical liquids, which are expected to produce symmetric spin textures even in the AC regime.
description: 7 pages, 4 figures
Unsupervised Anomaly-based Malware Detection using Hardware Features
Creators: name: Tang, Adrian
name: Sethumadhavan, Simha
name: Stolfo, Salvatore
Publisher: name: Columbia University
Year: 2014
Subjects: Computer science

description: Recent works have shown promise in using microarchitectural execution patterns to detect malware programs. These detectors belong to a class of detectors known as signature-based detectors as they catch malware by comparing a program's execution pattern (signature) to execution patterns of known malware programs. In this work, we propose a new class of detectors - anomaly-based hardware malware detectors - that do not require signatures for malware detection, and thus can catch a wider range of malware including potentially novel ones. We use unsupervised machine learning to build profiles of normal program execution based on data from performance counters, and use these profiles to detect significant deviations in program behavior that occur as a result of malware exploitation. We show that real-world exploitation of popular programs such as IE and Adobe PDF Reader on a Windows/x86 platform can be detected with nearly perfect certainty. We also examine the limits and challenges in implementing this approach in face of a sophisticated adversary attempting to evade anomaly-based detection. The proposed detector is complementary to previously proposed signature-based detectors and can be used together to improve security.
EFSA Pest Survey toolkit - EC Working Group on Plant Health Surveillance - 17 February
Creators: name: Vos, Sybren
Publisher: name: Zenodo
Year: 2023
Subjects: subject: Plant pests
subject: Plant health
subject: Surveillance
subject: Survey preparation
subject: Survey design
subject: Invasive species
subject: Pest survey cards
subject: Survey guidelines
subject: http://artemide.art.uniroma2.it/skosmos/gacs/en/page/C236
subject: http://artemide.art.uniroma2.it/skosmos/gacs/en/page/C10651
subject: https://zenodo.org/search?page=1&size=20&q=subject.term:%22Surveillance%22
subject: https://zenodo.org/search?page=1&size=20&q=subject.term:%22Invasive%20species%22
subject: https://zenodo.org/search?page=1&size=20&q=subject.term:%22host%20plants%22

description: Presentation of EFSA Pest Survey Toolkit for EC Working Group on Plant Health Surveillance on 17 February 2022.
The High Time Resolution Universe Survey - IX: Polarimetry of long-period pulsars
Creators: name: Tiburzi, C.
name: Johnston, S.
name: Bailes, M.
name: Bates, S. D.
name: Bhat, N. D. R.
name: Burgay, M.
name: Burke-Spolaor, S.
name: Champion, D.
name: Coster, P.
name: D'Amico, N.
name: Keith, M. J.
name: Kramer, M.
name: Levin, L.
name: Milia, S.
name: Ng, C.
name: Possenti, A.
name: Stappers, B. W.
name: Thornton, D.
name: van Straten, W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a polarimetric analysis of 49 long-period pulsars discovered as part of the High Time Resolution Universe (HTRU) southern survey. The sources exhibit the typical characteristics of "old" pulsars, with low fractional linear and circular polarisation and narrow, multicomponent profiles. Although the position angle swings are generally complex, for two of the analysed pulsars (J1622-3751 and J1710-2616) we obtained an indication of the geometry via the rotating vector model. We were able to determine a value of the rotation measure (RM) for 34 of the sources which, when combined with their dispersion measures (DM), yields an integrated magnetic field strength along the line of sight. With the data presented here, the total number of values of RM associated to pulsars discovered during the HTRU southern survey sums to 51. The RMs are not consistent with the hypothesis of a counter-clockwise direction of the Galactic magnetic field within an annulus included between 4 and 6 kpc from the Galactic centre. A partial agreement with a counter-clockwise sense of the Galactic magnetic field within the spiral arms is however found in the area of the Carina-Sagittarius arm.
description: 18 pages, 5 figures, 2 tables, accepted by MNRAS
EFSA Pest Survey toolkit - EC Working Group on Plant Health Surveillance - 17 February 2022.
Creators: name: Sybren Vos
Publisher: name: Zenodo
Year: 2023
Subjects: plant pests
plant health
surveillance
survey preparation
survey design
invasive species
pest survey cards
survey guidelines

description: Presentation of EFSA Pest Survey Toolkit for EC Working Group on Plant Health Surveillance on 17 February 2022.
description: EU; en; PDF; PLANTS@efsa.europa.eu
In Iesu Christi promissi et exhibiti Messiae, Dei et Mariae filii natalem, Carmen Elegiacum; 1558
Creators: name: Weigel, Georg
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2021

description: Bibliograph. Nachweis: VD16, W 1486
Direct observations of a complex coronal web driving highly structured slow solar wind
Creators: name: Chitta, L. P.
name: Seaton, D. B.
name: Downs, C.
name: DeForest, C. E.
name: Higginson, A. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The solar wind consists of continuous streams of charged particles that escape into the heliosphere from the Sun, and is split into fast and slow components, with the fast wind emerging from the interiors of coronal holes. Near the ecliptic plane, the fast wind from low-latitude coronal holes is interspersed with a highly structured slow solar wind, the source regions and drivers of which are poorly understood. Here we report extreme-ultraviolet observations that reveal a spatially complex web of magnetized plasma structures that persistently interact and reconnect in the middle corona. Coronagraphic white-light images show concurrent emergence of slow wind streams over these coronal web structures. With advanced global MHD coronal models, we demonstrate that the observed coronal web is a direct imprint of the magnetic separatrix web (S-web). By revealing a highly dynamic portion of the S-web, our observations open a window into important middle-coronal processes that appear to play a key role in driving the structured slow solar wind.
description: This version of the article has been accepted for publication, after peer review but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1038/s41550-022-01834-5
Vernam, Mauborgne, and Friedman: The One-Time Pad and the Index of Coincidence
Creators: name: Bellovin, Steven Michael
Publisher: name: Columbia University
Year: 2014
Subjects: Computer science

description: The conventional narrative for the invention of the AT and T one-time pad was related by David Kahn. Based on the evidence available in the AT and T patent files and from interviews and correspondence, he concluded that Gilbert Vernam came up with the need for randomness, while Joseph Mauborgne realized the need for a non-repeating key. Examination of other documents suggests a different narrative. It is most likely that Vernam came up with the need for non-repetition; Mauborgne, though, apparently contributed materially to the invention of the two-tape variant. Furthermore, there is reason to suspect that he suggested the need for randomness to Vernam. However, neither Mauborgne, Herbert Yardley, nor anyone at AT and T really understood the security advantages of the true one-time tape. Col. Parker Hitt may have; William Friedman definitely did. Finally, we show that Friedman's attacks on the two-tape variant likely led to his invention of the index of coincidence, arguably the single most important publication in the history of cryptanalysis.
Emergence of macroscopic directed motion in populations of motile colloids
Creators: name: Bricard, Antoine
name: Caussin, Jean-Baptiste
name: Desreumaux, Nicolas
name: Dauchot, Olivier
name: Bartolo, Denis
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: From the formation of animal flocks to the emergence of coordinate motion in bacterial swarms, at all scales populations of motile organisms display coherent collective motion. This consistent behavior strongly contrasts with the difference in communication abilities between the individuals. Guided by this universal feature, physicists have proposed that solely alignment rules at the individual level could account for the emergence of unidirectional motion at the group level. This hypothesis has been supported by agent-based simulations. However, more complex collective behaviors have been systematically found in experiments including the formation of vortices, fluctuating swarms, clustering and swirling. All these model systems predominantly rely on actual collisions to display collective motion. As a result, the potential local alignment rules are entangled with more complex, often unknown, interactions. The large-scale behavior of the populations therefore depends on these uncontrolled microscopic couplings. Here, we demonstrate a new phase of active matter. We reveal that dilute populations of millions of colloidal rollers self-organize to achieve coherent motion along a unique direction, with very few density and velocity fluctuations. Identifying the microscopic interactions between the rollers allows a theoretical description of this polar-liquid state. Comparison of the theory with experiment suggests that hydrodynamic interactions promote the emergence of collective motion either in the form of a single macroscopic flock at low densities, or in that of a homogenous polar phase at higher densities. Furthermore, hydrodynamics protects the polar-liquid state from the giant density fluctuations. Our experiments demonstrate that genuine physical interactions at the individual level are sufficient to set homogeneous active populations into stable directed motion.
Retinoic acid (all-trans) presents antioxidant properties within human ovary and reduces progesterone production by human granulosa cells
Creators: name: Fonseca, Bruno M.
name: Cruz, Rebeca
name: Pinto, Beatriz
name: Costa, Lia
name: Felgueira, Eduarda
name: Oliveira, Pedro
name: Casal, Susana
name: Rebelo, Irene
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: Both vitamin A and E support female reproduction and embryonic development. These vitamins have been associated with decreased fertility or failure to end the pregnancy in animals. An observational study was conducted on follicular fluid (FF) samples to determine the concentrations of fat-soluble vitamins of women undergoing in vitro fertilization and its correlation with assisted reproductive technology characteristics and pregnancy outcomes. Moreover, the effects of all-trans-retinoic acid (atRA) and alpha-tocopherol on granulosa cell viability, apoptosis, autophagy and hormonal production were evaluated. No association was identified between fat-soluble vitamin concentrations in FF and infertility aetiology, body mass index or woman’s age. There were differences in follicular antioxidant profiles and ovarian response stimulation. In vitro evaluation of atRA and alpha-tocopherol reveals that, at physiological concentrations, both compounds may affect the viability of granulosa cells. In addition, these compounds are able to protect granulosa cells from oxidative stress, as well as to affect estradiol and progesterone production. Our data suggest that atRA and alpha-tocopherol levels should be well controlled as they may have implications in the function and viability of granulosa cells and highlights retinol as a marker of the oxidative defenses within ovary environment.
Optimal multi-configuration approximation of an N-fermion wave function
Creators: name: Zhang, J. M.
name: Kollar, Marcus
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We propose a simple iterative algorithm to construct the optimal multi-configuration approximation of an $N$-fermion wave function. That is, $M\geq N $ single-particle orbitals are sought iteratively so that the projection of the given wave function in the $C_M^N$-dimensional configuration subspace is maximized. The algorithm has a monotonic convergence property and can be easily parallelized. The significance of the algorithm on the study of entanglement in a multi-fermion system and its implication on the multi-configuration time-dependent Hartree-Fock (MCTDHF) are discussed. The ground state and real-time dynamics of spinless fermions with nearest-neighbor interactions are studied using this algorithm, discussing several subtleties.
description: 12 pages, 7 figures. Any comment is welcome and appreciated
The Medium-Term Labor Market Returns to Community College Awards: Evidence From North Carolina
Creators: name: Belfield, Clive
name: Liu, Yuen Ting
name: Trimble, Madeline Joy
Publisher: name: Columbia University
Year: 2014
Subjects: Community college students--Education
Community colleges

description: In this paper, the authors examine the relative labor market gains for first-time college students who enrolled in the North Carolina Community College System in 2002–03. The medium-term returns to diplomas, certificates, and degrees are compared with returns for students who accumulated college credits but did not graduate. The authors also investigate the returns to credit accumulation, subject field, and transfer and the early trajectories of wages for different student subgroups during the 2000s. The analysis is based on student-level administrative record data from college transcripts, Unemployment Insurance wage data, and enrollment and graduation data from the National Student Clearinghouse across 830,000 community college students between 2001 and 2010. Findings from this study confirm those from earlier work: The returns to certificates and diplomas were weak, but associate and bachelor’s degrees yielded very strong returns; even small accumulations of credits had labor market value; and the returns to health sector credentials were extremely high. Returns were much higher for female students than for male students. Despite the Great Recession, analysis reveals little evidence that the returns to college decreased over the latter half of the 2000s. However, medium-term estimates likely understate the full value of college credentials, particularly bachelor’s degrees.
Optical properties of irradiated epitaxial GaN films
Creators: name: Belyaev, A. E.
name: Klyui, N. I.
name: Konakova, R. V.
name: Luk'yanov, A. M.
name: Sveshnikov, Yu. M.
name: Klyui, A. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The influence of a microwave treatment (MWT) on the optical properties of hexagonal GaN films has been studied. To estimate the internal mechanical strains and the degree of structural perfection in a thin near-surface layer of the film, the electroreflectance (ER) method is used. The ER spectra are measured in the interval of the first direct interband transitions. It has been shown that the MWT results in the relaxation of internal mechanical strains in the irradiated films. In addition, the structural perfection in the thin near-surface layer of the irradiated film became higher. A mechanism that includes resonance effects and the local heating of the film defect regions is proposed to explain the effects observed.
EFSA activities on Pest Surveillance - EC Working Group on Plant Health Surveillance - 17 November 2022
Creators: name: Sybren Vos
name: Ignazio Graziosi
name: Tomasz Kaluski
Publisher: name: Zenodo
Year: 2023
Subjects: plant pests
plant health
surveillance
survey preparation
survey design
invasive species
pest survey cards
survey guidelines

description: Presentation of EFSA activities on Pest Surveillance for EC Working Group on Plant Health Surveillance on 17 November 2022.
description: EU; en; PDF; PLANTS@efsa.europa.eu
On the Moore-Penrose inverse, EP Banach space operators and EP Banach algebra elements
Creators: name: Boasso, Enrico
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary 15A09, Secondary 47A05

description: The main concern of this note is the Moore-Penrose inverse in the context of Banach spaces and algebras. Especially attention will be given to a particular class of elements with the aforementioned inverse, namely EP Banach space operators and Banach algebra elements, which will be studied and characterized extending well-known results obtained in the frame of Hilbert space operators and $C^*$-algebra elements.
description: 20 pages, original research article
Montesquieu's Political Fictions: Oriental Despotism and the Representation of the Feminine
Creators: name: Dobie, Madeleine
Publisher: name: Columbia University
Year: 1996
Subjects: Literature
Women's studies

description: This paper takes as its point of departure the relative paucity of post-structuralist studies of Montesquieu. If the political writings of Rousseau have attracted this form of approach, it is undoubtedly because of the reflections on truth and on language which they articulate; by contrast, the Esprit des lois is justifiably acclaimed as introducing empirical or historical methodology into political science. I suggest, however, that a reflection on the problematics of truth and language can be discovered in Montesquieu. This paper sketches out a broadly deconstructive approach to this reflection through a reading of certain aspects of oriental despotism in the Esprit des lois,  Lettres persones, and Arsace et Ismeme.
Monte Carlo evaluation of the equilibrium isotope effects using the Takahashi-Imada factorization of the Feynman path integral
Creators: name: Buchowiecki, Marcin
name: Vanicek, Jiri
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The Feynman path integral approach for computing equilibrium isotope effects and isotope fractionation corrects the approximations made in standard methods, although at significantly increased computational cost. We describe an accelerated path integral approach based on three ingredients: the fourth- order Takahashi-Imada factorization of the path integral, thermodynamic integration with respect to mass, and centroid virial estimators for relevant free energy derivatives. While the frst ingredient speeds up convergence to the quantum limit, the second and third improve statistical convergence. The combined method is applied to compute the equilibrium constants for isotope exchange reactions H2+D=H+HD and H2+D2=2HD.
Simplifying Complexity in the Student Experience
Creators: name: Jaggars, Shanna
name: Fletcher, Jeffrey
name: Stacey, Georgia West
name: Little, Jill
Publisher: name: Columbia University
Year: 2014
Subjects: Community college students--Education
Community colleges
School management and organization

description: This practitioner packet, based on work CCRC conducted at and with Macomb Community College, is designed to help colleges identify areas where students struggle due to excessive complexity in the academic decision-making process, and to devise and implement relatively low-cost solutions that can improve the student experience. Part one describes data-gathering methods colleges can use to help them understand how students experience intake, orientation, registration, advising, and the overall process of academic decision-making. Part two describes how colleges can use these data to identify areas of confusion, and to engage stakeholders in devising and implementing solutions. Part three describes how to evaluate redesigned processes and procedures in order to assess their impact and further refine them. Part four is an appendix that includes detailed examples of data collection and project management materials.
Complete Bibliography for David M. Carr, Holy Resilience: The Bible's Traumatic Origins, Yale University Press, 2014
Creators: name: Carr, David M.
Publisher: name: Columbia University
Year: 2014
Subjects: Religion
History
Bible

description: This is a (virtually) complete bibliography for the book Holy Resilience: The Bible's Traumatic Origins by David M. Carr, published by Yale University Press in Fall 2014.