cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The link concordance invariant from Lee homology
Creators: name: Pardon, John
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M27, 57Q60, 57M25

description: We use the knot homology of Khovanov and Lee to construct link concordance invariants generalizing the Rasmussen $s$-invariant of knots. The relevant invariant for a link is a filtration on a vector space of dimension $2^{|L|}$. The basic properties of the $s$-invariant all extend to the case of links; in particular, any orientable cobordism $Σ$ between links induces a map between their corresponding vector spaces which is filtered of degree $χ(Σ)$. A corollary of this construction is that any component preserving orientable cobordism from a $\Kh$-thin link to a link split into $k$ components must have genus at least $\lfloor\frac k2\rfloor$. In particular, no quasi-alternating link is concordant to a split link.
description: 15 pages, 1 figure
title: Deep learning-based artificial intelligence diagnostic system enhanced the efficiency of radiologists in reading digital X-ray images in clinical practice
Creators: name: Munuera, Josep
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Artificial Intelligence and Machine Learning
subject: Artificial Intelligence
subject: Lung
subject: Paediatric
subject: CAD
subject: Conventional radiography
subject: CAD
subject: Infection
subject: Retrospective
subject: Not applicable
subject: Performed at one institution

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: To explore the role of deep learning (DL)-based artificial intelligence (AI) diagnostic system in assisting radiologist in reading X-ray images by evaluating the detection rate and...
The Unique Origin of Colors of Armchair Carbon Nanotubes
Creators: name: Haroz, E. H.
name: Lu, B. Y.
name: Nikolaev, P.
name: Arepalli, S.
name: Hauge, R. H.
name: Kono, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The colors of suspended metallic colloidal particles are determined by their size-dependent plasma resonance, while those of semiconducting colloidal particles are determined by their size-dependent band gap. Here, we present a novel case for armchair carbon nanotubes, suspended in aqueous medium, for which the color depends on their size-dependent excitonic resonance, even though the individual particles are metallic. We observe distinct colors of a series of armchair-enriched nanotube suspensions, highlighting the unique coloration mechanism of these one-dimensional metals.
description: 4 pages, 3 figures
Day and night side core cooling of a strongly irradiated giant planet
Creators: name: Budaj, J.
name: Hubeny, I.
name: Burrows, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The internal heat loss, or cooling, of a planet determines its structure and evolution. We study the effects of irradiation, metallicity of the atmosphere, heat redistribution, stratospheres, and the depth where the heat redistribution takes place on the atmospheric structure, the core entropy, and subsequently on the cooling of the interior of the planet. We address in a consistent fashion the coupling between the day and the night sides of a planet by means of model atmosphere calculations with heat redistribution. We assume that strong convection leads to the same entropy on the day and night sides and that gravity is the same on both hemispheres. We argue that the core cooling rates from the two hemispheres of a strongly irradiated planet may not be the same and that the difference depends on several important parameters. If the day-night heat redistribution is very efficient or if it takes place at the large optical depth, then the day-side and the night-side cooling may be comparable. However, if the day-night heat transport is not efficient or if it takes place at a shallow optical depth then there can be a large difference between the day- and the night-side cooling and the night side will cool more efficiently. If stellar irradiation becomes stronger, e.g. owing to stellar evolution or migration, cooling from both the day and the night sides is reduced. Enhanced metallicity of the atmosphere would act as an added "blanket" and reduces both the day- and the night-side cooling. However, a stratosphere on the planetary day side can enhance day-side cooling since its opacity acts as a "sunshade" that screens the stellar irradiation. These effects may also influence the well-known gravity darkening and bolometric albedo effects in interacting binaries, especially for strongly irradiated cold components.
description: 9 pages, 17 figures, A&A, in press
Flat band-engineered spin-density wave and the emergent multi-$k$ magnetic state in the topological kagome metal Mn$_{3}$Sn
Creators: name: Wang, Xiao
name: Zhu, Fengfeng
name: Yang, Xiuxian
name: Meven, Martin
name: Mi, Xinrun
name: Yi, Changjiang
name: Song, Junda
name: Mueller, Thomas
name: Schmidt, Wolfgang
name: Schmalzl, Karin
name: Ressouche, Eric
name: Xu, Jianhui
name: He, Mingquan
name: Shi, Youguo
name: Feng, Wanxiang
name: Mokrousov, Yuriy
name: Blügel, Stefan
name: Roth, Georg
name: Su, Yixi
Publisher: name: Forschungzentrum Jülich
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: arXiv (2023). doi:10.48550/ARXIV.2306.04312
description: Magnetic kagome metals, in which topologically non-trivial band structures and electronic correlation are intertwined, have recently emerged as an exciting platform to explore exotic correlated topological phases, that are usually not found in weakly interacting materials described within the semi-classical picture of electrons. Here, via a comprehensive single-crystal neutron diffraction and first-principles density functional theory study of the archetypical topological kagome metal Mn$_3$Sn, which is also a magnetic Weyl fermion material and a promising chiral magnet for antiferromagnetic spintronics, we report the realisation of an emergent spin-density wave (SDW) order, a hallmark correlated many-body phenomenon, that is engineered by the Fermi surface nesting of topological flat bands. We further reveal that the phase transition, from the well-known high-temperature coplanar and non-collinear k = 0 inverse triangular antiferromagnetic order to a double-$k$ non-coplanar modulated incommensurate magnetic structure below $T_1$ = 280 K, is primarily driven by the SDW instability. The double-$k$ nature of this complex low-temperature magnetic order, which can be regarded as an intriguing superposition of a longitudinal SDW with a modulation wavevector k$_L$ and a transverse incommensurate helical magnetic order with a modulation wavevector k$_T$, is unambiguously confirmed by our observation of the inter-modulation high-order harmonics of the type of 2k$_L$+k$_T$. This discovery not only solves a long-standing puzzle concerning the nature of the phase transition at $T_1$, but also provides an extraordinary example on the intrinsic engineering of correlated many-body phenomena in topological matter. The identified multi-$k$ magnetic state can be further exploited for the engineering of the new modes of magnetization and chirality switching in antiferromagnetic spintronics.
description: Published by arXiv
Impure Aspects of Supersymmetric Wilson Loops
Creators: name: Cardinali, Valentina
name: Griguolo, Luca
name: Seminara, Domenico
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a general class of supersymmetric Wilson loops operator in N = 4 super Yang-Mills theory, obtained as orbits of conformal transformations. These loops are the natural generalization of the familiar circular Wilson-Maldacena operator and their supersymmetric properties are encoded into a Killing spinor that is not pure. We present a systematic analysis of their scalar couplings and of the preserved supercharges, modulo the action of the global symmetry group, both in the compact and in the non-compact case. The quantum behavior of their expectation value is also addressed, in the simplest case of the Lissajous contours: explicit computations at weak-coupling, through Feynman diagrams expansion, and at strong-coupling, by means of AdS/CFT correspondence, suggest the possibility of an exact evaluation.
description: 40 pages, 4 figures
X-ray spectral variability in NGC 3783
Creators: name: Reis, R. C.
name: Fabian, A. C.
name: Reynolds, C. S.
name: Brenneman, L. W.
name: Walton, D. J.
name: Trippe, M.
name: Miller, J. M.
name: Mushotzky, R. F.
name: Nowak, M. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: NGC 3783 was observed for approximately 210ks by Suzaku and in this time showed significant spectral and flux variability at both short (20ks) and long (100ks) time scales. The full observation is found to consist of approximately six "spectral periods" where the behaviour of the soft (0.3-1.0keV) and hard (2-10keV) bands are somewhat distinct. Using a variety of methods we find that the strong warm absorber present in this source does not change on these time scales, confirming that the broad-band variability is intrinsic to the central source. The time resolved difference-spectra are well modelled with an absorbed powerlaw below 10keV, but show an additional hard excess at ~20keV in the latter stages of the observation. This suggests that, in addition to the variable powerlaw, there is a further variable component that varies with time but not monotonically with flux. We show that a likely interpretation is that this further component is associated with variations in the reflection fraction or possibly ionization state of the accretion disk a few gravitational radii from the black hole.
description: Accepted for publication in ApJ. 29 pages, 15 figures
title: Standardized reporting with template formats in improving diagnostic accuracy and skill acquisition in first trimester fetal anomaly scan
Creators: name: Prakash, Aparna
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Quality assurance
subject: Patterns of Care
subject: Foetus
subject: Intrauterine diagnosis
subject: Ultrasound
subject: Professional issues
subject: Management
subject: Foetal imaging
subject: Imaging Informatics

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Structured reporting is one of the emerging aspects of radiology contributing to the improvement of patient outcomes and improving the communication between the clinician and the radiologist. It also ensures that the report addresses all the...
xPF: Packet Filtering for Low-Cost Network Monitoring
Creators: name: Ioannidis, Sotiris
name: Anagnostakis, Kostas G.
name: Ioannidis, John
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2002
Subjects: Computer science

description: The ever-increasing complexity in network infrastructures is making critical the demand for network monitoring tools. While the majority of network operators rely on low-cost open-source tools based on commodity hardware and operating systems, the increasing link speeds and complexity of network monitoring applications have revealed inefficiencies in the existing software organization, which may prohibit the use of such tools in high-speed networks. Although several new architectures have been proposed to address these problems, they require significant effort in re-engineering the existing body of applications. We present an alternative approach that addresses the primary sources of inefficiency without significantly altering the software structure. Specifically, we enhance the computational model of the Berkeley packet filter (BPF) to move much of the processing associated with monitoring into the kernel, thereby removing the overhead associated with context switching between kernel and applications. The resulting packet filter, called xPF, allows new tools to be more efficiently implemented and existing tools to be easily optimized for high-speed networks. We present the design and implementation of xPF as well as several example applications that demonstrate the efficiency of our approach.
Sound production in relation with breeding behaviour in meagre (Argyrosomus regius) in aquaculture conditions
Creators: name: Bolgan, Marta
name: Siapazis, C.
name: Fakriadis, I.
name: Parmentier, Eric
name: Mylonas, Constantinos
Publisher: name: Zenodo
Year: 2023

description: INTRODUCTION
Although sound production has been described so far in little more than 1100 fish species, recent studies demonstrate that this communication modality is shared by nearly two-thirds of actinopterygian species. The meagre (Argyrosomus regius) has a wide vocal repertoire and can emit sounds made of a single pulse up to more than 100 pulses. The calling rate and sound temporal features have been suggested as indicative of reproductive events. The aim of this study was to document sound production during spawning activities and to investigate how sounds relate with specific behaviors when fish are reared in aquaculture.
METHODS
Two broodstocks (Group 1 and 2, each with 2 females and 3 males) were used. At the expected spawning period, reproductive stage was evaluated through ovarian biopsies and sperm quality evaluation, and selected fish were injected with GnRHa. Each breeder was tagged externally, and their behavior was monitored using underwater cameras. Two HTI- 96-Min hydrophones were connected to the audio input of the camera. Using Adobe Premiere, audio files were extracted from the videos (May 5th to May 13th, 2022). All audio files were analyzed by audio and visual assessment (Raven Pro 64 1.4). Meagre sounds were manually labelled on the basis of the number of pulses as knocks, short, intermediate and long grunts (total of 243 h of recordings analyzed, 33,351 sounds selected). The occurrences in which a sound could be associated with distinct behaviors (i.e. trailing, darting and male-to-male agonistic behavior) or spawning, were annotated from the video observations. Sounds emitted during these events were measured for fine temporal features (number of pulses, pulse period and sound duration).
RESULTS & DISCUSSION
Fish spawned for three consecutive nights, beginning 2 days after GnRHa administration. The number of sounds produced increased significantly during spawning days, compared to the ones immediately before GnRHa treatment. Long grunts, in particular, were emitted only during spawning days, when knocks were emitted in long, dense series. Knocks were associated with all behaviors considered and were the only sound type associated with same-sex trailing and male-to-male agonistic interactions. Grunts, on the other hand, appeared associated with different-sex trailing during spawning. These results agree with previous studies that identified long grunts as potential indicators of spawning, as well as with studies conducted in the wild, which reported long choruses of knocks. Knocks and long grunts are, therefore, suggested as "carrier of information" during spawning in the meagre.
The measurement and the monitoring of the central hemodynamics using non-invasive and minimally-invasive data
Creators: name: Leung, Mande Tak Man
Publisher: name: University of British Columbia
Year: 2011

description: According to the World Health Organization (WHO), cardiovascular (CV) diseases are the number one cause of death globally, and are projected to remain the single leading cause of death by 2030. Central pulse pressure and several arterial stiffness indices, especially aortic pulse wave velocity (PWV), are among the strongest predictors of CV events, including stroke, myocardial infarction (heart attack) and angina (chest pain). Therefore, non-invasive methods for the assessment of the central pressure and central arterial stiffness are very important for the diagnosis of CV diseases at their early stage of development. In this thesis, non-invasive methods are developed to (i) measure the aortic PWV, and (ii) measure the aortic pressure waveform (APW). In the intensive care unit, cardiac output (CO) is an important measure of the adequacy of circulation among post-operative patients of cardiovascular diseases. Current methods of monitoring use the heart rate, peripheral blood pressure, and urine output as surrogates of CO, but these indices are inadequate. CO can be monitored directly using thermodilution but the procedure is highly invasive. In this thesis, a minimally-invasive method is developed to monitor the CO using the radial artery pressure waveform. The underlying algorithms of the methods developed in this thesis are interrelated. In this thesis, the arterial system is modeled as a single uniform lossless transmission line terminated by a complex load. Each measuring and monitoring task is a problem of identification, simulation or data acquisition. The measurement of the aortic PWV is formulated as an identification problem. The method developed in this thesis was shown to be able to differentiate a group of children with Marfan syndrome from the healthy children. The monitoring of CO is formulated as a problem of identification and simulation. The method developed in this thesis was applied to five post-surgical infants. It showed clinically acceptable agreement with the more established echocardiographic technique. The measurement of APW is a problem of data acquisition. A method was developed to estimate APW from the aortic distension waveform obtained using B-mode ultrasound. This method showed good agreement with carotid artery applanation tonometry when applied to nine healthy children.
title: OGAIA : Outil de Gestion, d’Analyse et d’illustration en Archéozoologie
Creators: name: Creuzieux, Aurélien
name: Hofmann, Etienne
Publisher: name: Inrap
Year: 2020

description: OGAIA est une combinaison d’outils développés à l’aide des logiciels Excel© et Qgis©. L’objectif de ces outils est de faciliter l’enregistrement, la gestion, l’analyse et l’exploitation des données archéozoologiques recueillies dans le cadre d’une opération de terrain. L’ensemble est conçu pour optimiser le temps consacré à la saisie et à la production des inventaires légaux, mais aussi permettre l’exploration rapide des données et la production de documents illustrant l’étude archéozoologique : statistiques descriptives simples, figures de répartitions anatomiques, etc.
description: OGAIA is a combination of tools developed using Excel© and Qgis© software. The objective of these tools is to facilitate recording, management, analysis and exploitation of zooarchaeological data collected during an excavation. The set is designed to optimize the time devoted to the capture and production of legal inventories, but also to allow the rapid exploration of datas and the production of documents illustrating the zooarchaeological study: descriptive statistics, anatomical distribution figures, etc.
Evaluation of the discovery potential of an underwater Mediterranean neutrino telescope taking into account the estimated directional resolution and energy of the reconstructed tracks
Creators: name: Leisos, A.
name: Tsirigotis, A. G.
name: Tzamarias, S. E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on the development of search methods for point-like and extended neutrino sources, utilizing the tracking and energy estimation capabilities of an underwater, Very Large Volume Neutrino Telescope (VLVnT). We demonstrate that the developed techniques offer a significant improvement on the telescope's discovery potential. We also present results on the potential of the Mediterranean KM3NeT to discover galactic neutrino sources.
description: 12 pages, 1 figure, to be published in Nucl. Inst. and Meth. A v2: minor changes, 1 page added
title: The role of deep learning-based artificial intelligence diagnostic system in detecting pediatric pneumonia with Chest x-ray in the clinical practice
Creators: name: Munuera, Josep
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Artificial Intelligence and Machine Learning
subject: Lung
subject: Paediatric
subject: Conventional radiography
subject: Computer Applications-Detection, diagnosis
subject: Infection
subject: Retrospective
subject: Not applicable
subject: Performed at one institution

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Pneumonia is a common childhood disease. Severe pneumonia is one of the leading causes of death in infants and youngsters. The accurate and prompt detection of pneumonia is then of great value. This study aimed to examine the performances of deep...
Does the Landowner’s Gender Affect Self-Cultivation and Farm Productivity? An Analysis for India
Creators: name: Agarwal, Bina
name: Mahesh, Malvika
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Neuroscience
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Land ownership has long been argued to enhance farm productivity by improving tenure security. But would this hold for female and male owners alike? The relationship between land ownership and productivity has been investigated relatively little from a gender perspective in most regions, with work on Asia being especially sparse. Even less explored are gender differences in the likelihood of landowners self-cultivating as vs. leasing out their land. This paper uses a unique household-level dataset for nine states of India to first assess gender differences in the likelihood of landowners self-cultivating or renting out their land. It then analyses differences in farm productivity between female and male owners who self-cultivate. The effect of caste disadvantage is also explored. We find that women owners are significantly less likely than male owners to self-cultivate their land. This is linked especially to family labour constraints and regional opportunities. However, among those who do self-cultivate, the annual farm productivity per hectare does not differ significantly by the gender of the owner-cultivator. This holds true with or without controlling for other factors. Caste matters, however: Scheduled Caste owner-cultivators of both genders have significantly lower productivity than upper-caste ones.
Halo abundances and shear in void models
Creators: name: Alonso, David
name: García-Bellido, Juan
name: Haugboelle, Troels
name: Knebe, Alexander
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the non-linear gravitational collapse of dark matter into halos through numerical N-body simulations of Lemaitre-Tolman-Bondi void models. We extend the halo mass function formalism to these models in a consistent way. This extension not only compares well with the simulated data at all times and radii, but it also gives interesting clues about the impact of the background shear on the growth of perturbations. Our results give hints about the possibility of constraining the background shear via cluster number counts, which could then give rise to strong constraints on general inhomogeneous models, of any scale.
description: 5 pages, 3 figures, Accepted in Physics of the Dark Universe, preprint IFT-UAM/CSIC-12-31
Vision for mobile robot localization in urban environments
Creators: name: Georgiev, Atanas
name: Allen, Peter K.
Publisher: name: Columbia University
Year: 2002
Subjects: Robotics

description: This paper addresses the problem of mobile robot localization in urban environments. Typically, GPS is the preferred sensor for outdoor operation. However, using GPS-only localization methods leads to significant performance degradation in urban areas where tall nearby structures obstruct the clear view of the satellites. In our work, we use vision-based techniques to supplement GPS and odometry and provide accurate localization. The vision system identifies prominent linear features in the scene and matches them with a reduced model of nearby buildings, yielding improved pose estimation of the robot.
title: Post chemoradiotherapy assessment of anal carcinoma using magnetic resonance imaging in biopsy proven patients: preliminary results
Creators: name: Perelli, Tommaso
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Experimental
subject: Prospective
subject: Cancer
subject: Radiation therapy / Oncology
subject: Chemotherapy
subject: MR-Diffusion/Perfusion
subject: MR
subject: Pelvis
subject: Oncology
subject: Gastrointestinal tract
subject: GI Tract

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: To evaluate the role of multiparametric magnetic resonance (mpMRI) in local response assessment and detection of early local relapse after chemoradiotherapy (CRT) in patients with anal squamous cell carcinoma...
title: Comparison of pediatric radiologists' and automated method's (BoneXpert) evaluation of pediatric bone age using Tanner-Whitehouse 3 method - a single centre experience
Creators: name: Sobak, Liina
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Cross-sectional study
subject: Retrospective
subject: Quality assurance
subject: Technology assessment
subject: Conventional radiography
subject: Paediatric
subject: Bones
subject: Paediatric

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The aim of the study was to investigate the accuracy and bias between pediatric radiologists bone age evaluation results using conventional methods and BoneXpert [1] bone age evaluation results for the same...
Statistical thermodynamics for a non-commutative special relativity: Emergence of a generalized quantum dynamics
Creators: name: Lochan, Kinjalk
name: Satin, Seema
name: Singh, Tejinder P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: There ought to exist a description of quantum field theory which does not depend on an external classical time. To achieve this goal, in a recent paper we have proposed a non-commutative special relativity in which space-time and matter degrees of freedom are treated as classical matrices with arbitrary commutation relations, and a space-time line element is defined using a trace. In the present paper, following the theory of Trace Dynamics, we construct a statistical thermodynamics for the non-commutative special relativity, and show that one arrives at a generalized quantum dynamics in which space and time are non-classical and have an operator status. In a future work, we will show how standard quantum theory on a classical space-time background is recovered from here.
description: 21 pages. arXiv admin note: text overlap with arXiv:1106.0911
Automated Solar Flare Statistics in Soft X-rays over 37 Years of GOES Observations - The Invariance of Self-Organized Criticality during Three Solar Cycles
Creators: name: Aschwanden, Markus J.
name: Freeland, Samuel L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We analyzed the soft X-ray light curves from the {\sl Geostationary Operational Environmental Satellites (GOES)} over the last 37 years (1975-2011) and measured with an automated flare detection algorithm over 300,000 solar flare events (amounting to $\approx 5$ times higher sensitivity than the NOAA flare catalog). We find a powerlaw slope of $α_F=1.98\pm0.11$ for the (background-subtracted) soft X-ray peak fluxes that is invariant through three solar cycles and agrees with the theoretical prediction $α_F=2.0$ of the {\sl fractal-diffusive self-organized criticality (FD-SOC)} model. For the soft X-ray flare rise times we find a powerlaw slope of $α_T =2.02\pm0.04$ during solar cycle minima years, which is also consistent with the prediction $α_T=2.0$ of the FD-SOC model. During solar cycle maxima years, the powerlaw slope is steeper in the range of $α_T \approx 2.0-5.0$, which can be modeled by a solar cycle-dependent flare pile-up bias effect. These results corroborate the FD-SOC model, which predicts a powerlaw slope of $α_E=1.5$ for flare energies and thus rules out significant nanoflare heating. While the FD-SOC model predicts the probability distribution functions of spatio-temporal scaling laws of nonlinear energy dissipation processes, additional physical models are needed to derive the scaling laws between the geometric SOC parameters and the observed emissivity in different wavelength regimes, as we derive here for soft X-ray emission. The FD-SOC model yields also statistical probabilities for solar flare forecasting.
description: accepted for publication in ApJ
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ½Ð¾Ð¹ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð° ÑÐµÑÑÐ°ÑÐ° Ð½Ð°ÑÑÐ¸Ñ Ð¸ Ð¿ÑÐ¾ÑÐ¾ÑÐ½Ð¾Ð¹ Ð¾ÑÐ¸ÑÑÐºÐ¸ ÑÑÐ¾ÑÐ½ÑÑ Ð²Ð¾Ð´
title: Ð½Ð°ÑÑÐ½ÑÐ¹ Ð´Ð¾ÐºÐ»Ð°Ð´
titleType: Subtitle
title: Development and research of complex technological system for sodium ferrate production and flow system of waste water treatment
Creators: name: ÐÐµÐºÑÐ°ÑÐ¾Ð², Ð Ð¾Ð¼Ð°Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð­Ð»ÐµÐºÑÑÐ¾Ð»Ð¸Ð·
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ÑÐµÑÑÐ°Ñ Ð½Ð°ÑÑÐ¸Ñ
sodium ferrate

description: Ð Ð´Ð¾ÐºÐ»Ð°Ð´Ðµ Ð´Ð°Ð½ Ð¾Ð±Ð·Ð¾Ñ ÑÐ¿Ð¾ÑÐ¾Ð±Ð° ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾Ð¹ ÑÐ»ÐµÐºÑÑÐ¾Ñ Ð¸Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð²ÑÑÐ°Ð±Ð¾ÑÐºÐ¸ ÑÐµÑÑÐ°ÑÐ° Ð½Ð°ÑÑÐ¸Ñ, Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð° ÑÑ ÐµÐ¼Ð° Ð¼Ð°ÐºÐµÑÐ° ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ½Ð¾Ð³Ð¾ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ° Ð¿Ð¾ Ð²ÑÑÐ°Ð±Ð¾ÑÐºÐµ ÑÐµÑÑÐ°ÑÐ° Ð¸ ÐµÐ³Ð¾ Ð´Ð¾Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð² Ð¿ÑÐ¾ÑÐ¾ÑÐ½ÑÑ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¾ÑÐ¸ÑÑÐºÐ¸ Ñ Ð¾ÑÑÑÐ°Ð¸Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð¾ÑÐ°Ð´ÐºÐ°, Ð¿Ð¾ÐºÐ°Ð·Ð°Ð½Ð° Ð°Ð¿ÑÐ¾Ð±Ð°ÑÐ¸Ñ Ð¼Ð°ÐºÐµÑÐ° ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ½Ð¾Ð³Ð¾ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ°.
description: In the present work a method of effective electrochemical sodium ferrate generation is observed, there is shown a reference design of the complex of sodium ferrate generator and its application to flow water treatment system with sludge sedimentation, results of aprobation of the complex prototype apparatus is presented.
Influences of growth conditions and porosity on polypyrrole supercapacitor electrode performance
Creators: name: Lam, Joanna Wing Yu
Publisher: name: University of British Columbia
Year: 2011

description: Supercapacitors are electrical energy storage devices that offer high power density and high energy density. The current energy density of supercapacitors is, however, not sufficient to meet the requirements of many applications. By using polypyrrole (PPy) as an alternate electrode material, the energy density of supercapacitors can be increased. Approaches for simplifying and speeding the production of PPy electrodes are investigated, as are means of increasing power density. The tradeoffs in performance of PPy are investigated when electrochemical deposition conditions – current density and temperature -- are modified to reduce costs. Although the surface morphology changes according to deposition conditions, PPy’s performance in capacitance and charging time is not greatly affected. The best electrode performance is obtained using electrodeposition conditions in which a current density of 0.125 mA/cm² is used and the temperature is held at -30°C. Higher temperatures and faster deposition rates can lead to more voluminous films which are lower in density, volumetric and specific capacitances. Further work is needed to investigate the impact of growth conditions on cycle and shelf life. To decrease the charging time of PPy the hypothesis is that additional porosity will help by creating channels of high ionic mobility. The porosity is achieved by polymerizing onto carbonized polyacrylonitrile nanofibres (NF). PPy-coated NF samples with a density of 1.2 g/cm³ exhibit similar volumetric (160 F/cm³) and specific capacitances (130 F/g) similar to that of pure PPy. The use of NF can increase the apparent ionic conductivities of PPy, allowing NF/PPy samples to charge just as quickly as pure polypyrrole electrodes that are four times less capacitive. However, based on the current model, the advantages of increasing porosity should be more dramatic, suggesting that other mechanisms such as uncompensated resistances and ion depletion may also influence charging time. As such, further work on NF/PPy is needed to determine and hopefully to mitigate the effects of such mechanisms.
Bringing Reinforcement Learning to Communication and Networks
Creators: name: Gabillon, Victor
Publisher: name: Zenodo
Year: 2022

description: Industry 4.0 requires low latency, high availability data transmission, and high data rate communication. 
Improving wireless connectivity will be an important enabler formany modern applications in various segments. 
Highly advanced industry environments challenge 5G in terms of congestion, interference, security, safety, power consumption orpoor localization, massive IOT, and communication inside buildings. 
6G brains is a European project that combines machine learning (more specifically) with new communication technology to perform resource allocation over and beyond massive machine type communication and enhance performance with regard to capacity reliability and latency.
title: Are traumatic diffuse axonal injury (DAI) related microbleeds visible on subacute susceptibility weighted (SWI) MRI?
Creators: name: Környei, Bálint
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Retrospective
subject: Trauma
subject: Technical aspects
subject: Statistics
subject: FOS: Mathematics
subject: Imaging sequences
subject: MR
subject: Trauma
subject: Neuroradiology brain
subject: Neuro

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Our previous study on a rodent model showed that cerebral traumatic microbleeds (TMBs) may temporarily become invisible short after injury when detected by susceptibility weighted imaging (SWI). The aims of the present study is to validate this...
Properties of high-frequency wave power halos around active regions: an analysis of multi-height data from HMI and AIA onboard SDO
Creators: name: Rajaguru, S. P.
name: Couvidat, S.
name: Sun, Xudong
name: Hayashi, K.
name: Schunker, H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study properties of waves of frequencies above the photospheric acoustic cut-off of $\approx$5.3 mHz, around four active regions, through spatial maps of their power estimated using data from Helioseismic and Magnetic Imager (HMI) and Atmospheric Imaging Assembly (AIA) onboard Solar Dynamics Observatory (SDO). The wavelength channels 1600 Å and 1700 Å from AIA are now known to capture clear oscillation signals due to helioseismic p modes as well as waves propagating up through to the chromosphere. Here we study in detail, in comparison with HMI Doppler data, properties of the power maps, especially the so called 'acoustic halos' seen around active regions, as a function of wave frequencies, inclination and strength of magnetic field (derived from the vector field observations by HMI) and observation height. We infer possible signatures of (magneto-)acoustic wave refraction from the observation height dependent changes, and hence due to changing magnetic strength and geometry, in the dependences of power maps on the photospheric magnetic quantities. We discuss the implications for theories of p mode absorption and mode conversions by the magnetic field.
description: 22 pages, 12 figures, Accepted by journal Solar Physics
title: US-guided percutaneous cholecystostomy is a minimally invasive and successful approach for acute cholecystitis in high risk patients.
Creators: name: Schiro', Silvia
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Retrospective
subject: Inflammation
subject: Calcifications / Calculi
subject: Drainage
subject: Ultrasound
subject: Fluoroscopy
subject: Interventional non-vascular
subject: Biliary Tract / Gallbladder
subject: Abdomen
subject: Abdominal Viscera

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The aim of this study was: To assess the clinical course and possible benefit of US-guided percutaneous cholecystostomy (PC) in high risk patients with acute...
Cost of Virtual Machine Live Migration in Clouds: A Performance Evaluation
Creators: name: Voorsluys, William
name: Broberg, James
name: Venugopal, Srikumar
name: Buyya, Rajkumar
Publisher: name: arXiv
Year: 2011
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: Virtualization has become commonplace in modern data centers, often referred as "computing clouds". The capability of virtual machine live migration brings benefits such as improved performance, manageability and fault tolerance, while allowing workload movement with a short service downtime. However, service levels of applications are likely to be negatively affected during a live migration. For this reason, a better understanding of its effects on system performance is desirable. In this paper, we evaluate the effects of live migration of virtual machines on the performance of applications running inside Xen VMs. Results show that, in most cases, migration overhead is acceptable but cannot be disregarded, especially in systems where availability and responsiveness are governed by strict Service Level Agreements. Despite that, there is a high potential for live migration applicability in data centers serving modernInternet applications. Our results are based on a workload covering the domain of multi-tier Web 2.0 applications.
description: CloudCom 2009
title: Feasibility of intra arterial lu-177 dota tate therapy in metastatic neuroendocrine tumors(NETS) with liver dominant disease - “a novel theranostic approach to augment therapeutic potential”
Creators: name: KALMATH, SUNIL
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Retrospective
subject: Multidisciplinary cancer care
subject: Molecular, genomics and proteomics
subject: Cancer
subject: Radioembolisation
subject: Chemotherapy
subject: Arterial access
subject: SPECT
subject: PET-CT
subject: Catheter arteriography
subject: Oncology
subject: Liver
subject: Interventional vascular
subject: Interventional Radiology

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: To assess the safety, tolerability and efficacy of intra arterial Lu-177 DOTA TATE therapy in 4 patients with liver dominant metastasis in well differentiated Neuro endocrine...
Obama is Lucky It Was Steele Who Said It
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2010
Subjects: subject: Political science
subject: FOS: Political science

description: Lost in some of the controversy surrounding Steele's statements last week at an RNC fundraiser is the rather obvious nature of at least one thing he said, that the war in Afghanistan is "a war of Obama‘s choosing".
title: Dose optimization after installation of a new CT-scanner: a practical guide to success
Creators: name: Elfrink, Robert
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Physics in Medical Imaging
subject: Radiation physics
subject: Radiographers
subject: Radioprotection / Radiation dose
subject: CT
subject: Dosimetry
subject: Physics
subject: Radiation safety
subject: Dosimetric comparison
subject: Retrospective
subject: Experimental
subject: Performed at one institution

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: With the introduction of the European Directive 2013/59/Euratom (Basic Safety Standards), there is more attention for recording and reporting doses from radiological procedures. Moreover, an improved role and support of the Medical Physics Expert...
RealTime tracking meets online grasp planning
Creators: name: Kragic, Danica
name: Miller, Andrew T.
name: Allen, Peter K.
Publisher: name: Columbia University
Year: 2001
Subjects: Robotics

description: This paper describes a synergistic integration of a grasping simulator and a real-time visual tracking system, that work in concert to 1) find an object's pose, 2) plan grasps and movement trajectories, and 3) visually monitor task execution. Starting with a CAD model of an object to be grasped, the system can find the object's pose through vision which then synchronizes the state of the robot workcell with an online, model-based grasp planning and visualization system, we have developed called GraspIt. GraspIt can then plan a stable grasp for the object, and direct the robotic hand system to perform the grasp. It can also generate trajectories for the movement of the grasped object, which are used by the visual control system to monitor the task and compare the actual grasp and trajectory with the planned ones. We present experimental results using typical grasping tasks.
Numerical Simulations of Supernova Dust Destruction. II. Metal-Enriched Ejecta Knots
Creators: name: Silvia, D. W.
name: Smith, B. D.
name: Shull, J. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Following our previous work, we investigate through hydrodynamic simulations the destruction of newly-formed dust grains by sputtering in the reverse shocks of supernova remnants. Using an idealized setup of a planar shock impacting a dense, spherical clump, we implant a population of Lagrangian particles into the clump to represent a distribution of dust grains in size and composition. We vary the relative velocity between the reverse shock and ejecta clump to explore the effects of shock-heating and cloud compression. Because supernova ejecta will be metal-enriched, we consider gas metallicities from Z/Zsun = 1 to 100 and their influence on cooling properties of the cloud and the thermal sputtering rates of embedded dust grains. We post-process the simulation output to calculate grain sputtering for a variety of species and size distributions. In the metallicity regime considered in this paper, the balance between increased radiative cooling and increased grain erosion depends on the impact velocity of the reverse shock. For slow shocks (velocity less than or equal to 3000 km/s), the amount of dust destruction is comparable across metallicities, or in some cases is decreased with increased metallicity. For higher shock velocities (velocity greater than or equal to 5000 km/s), an increase in metallicity from Z/Zsun = 10 to 100 can lead to an additional 24% destruction of the initial dust mass. While the total dust destruction varies widely across grain species and simulation parameters, our most extreme cases result in complete destruction for some grain species and only 44% dust mass survival for the most robust species. These survival rates are important in understanding how early supernovae contribute to the observed dust masses in high-redshift galaxies.
description: 10 pages, 6 figures, 2 tables, changes made to the text and figures as suggested by the anonymous referee, accepted by the Astrophysical Journal
Secure and Flexible Global File Sharing
Creators: name: Miltchev, Stefan
name: Prevelakis, Vassilis
name: Ioannidis, Sotiris
name: Ioannidis, John
name: Keromytis, Angelos D.
name: Smith, Jonathan M.
Publisher: name: Columbia University
Year: 2003
Subjects: Computer science

description: Trust management credentials directly authorize actions, rather than divide the authorization task into authentication and access control. Unlike traditional credentials, which bind keys to principals, trust management credentials bind keys to the authorization to perform certain tasks. The Distributed Credential FileSystem (DisCFS) uses trust management credentials to identify: (1) files being stored; (2) users; and (3) conditions under which their file access is allowed. Users share files by delegating access rights, issuing credentials in the style of traditional capabilities. Credentials permit, for example, access by remote users not known in advance to the file server, which simply enforces sharing policies rather than entangling itself in their management. Throughput and latency benchmarks of our prototype DisCFS implementation indicate performance roughly comparable to NFS version 2, while preserving the advantages of credentials for distributed control.
title: YouTube-Guided Biopsy: Analysis of Patient Informative Thyroid Biopsy Videos In Terms of Reliabilty, Comprehensiveness and Quality
Creators: name: Doğan, Mahmut Bilal
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Observational
subject: Retrospective
subject: Education and training
subject: Cancer
subject: Technology assessment
subject: Education
subject: Biopsy
subject: Ultrasound
subject: Thyroid / Parathyroids
subject: Interventional non-vascular
subject: eHealth
subject: Interventional Radiology

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Today, 90% of people search the internet to access health-related information. 1 Youtube ® has reached almost two billion users since the first video uploaded in 2005. Currently, 5 billion videos are watched per day, with approximately 300 hours of...