cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Common iliac artery origin stenting with contralateral approach. A smart trick
Creators: name: Pozzi Mucelli, Fabio
Publisher: name: EURORAD
Year: 2018
Subjects: subject: Abdomen
subject: Arteries / Aorta
subject: Biliary Tract / Gallbladder
subject: Bones
subject: Absorptiometry / Bone densiometry
subject: Catheter arteriography
subject: Ablation procedures
subject: Angioplasty
subject: Recanalisation
subject: Abscess
subject: Arteriosclerosis
subject: Prostheses

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 59 years
description: Clinical History: 59 yo lady, active smoker, history of right leg claudication (Rutherford 3). CT-angiography reveals a short stenosis on the origin of right common iliac artery (rCIA), a long stenosis of external iliac artery (EIA) and occlusion of superficial femoral art... Final Diagnosis: Common iliac artery origin stent deployment with contralateral approach
CALICE Digital Hadron Calorimeter: Calibration and Response to Hadrons
Creators: name: Bilki, Burak
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The large CALICE Digital Hadron Calorimeter prototype (DHCAL) was built in 2009 - 2010. The DHCAL uses Resistive Plate Chambers (RPCs) as active media and is read out with 1 x 1 cm2 pads and digital (1 - bit) resolution. With a world record of about 0.5M readout channels, the DHCAL offers the possibility to study hadronic interactions with unprecedented spatial resolution. This talk reports on the results from the analysis of pion events of momenta between 2 to 60 GeV/c collected in the Fermilab test beam with an emphasis on the intricate calibration procedures.
description: Talk presented at the International Workshop on Future Linear Colliders (LCWS13), Tokyo, Japan, 11-15 November 2013
title: A description of issues of hegemonic, heterosexual masculinity compared with issues of gender identity in male survivors of sexual abuse
Creators: name: Seinen, Albert Christopher
Publisher: name: University of Victoria
Year: 2001
Subjects: subject: Male sexual abuse victims
subject: Masculinity
subject: Men--Identity

description: Using the central concept of power, a social-constructionist, pro-feminist view of identity is used to describe hegemonic discourse on heterosexual masculinity in both sexually abused and non-sexually abused men. The methodology used includes a review of the literature, clinical observation, and interviews of two experts on men's issues. Prevalence of male sexual abuse is greater than previously believed suggesting that abuse is an issue of gender identity for men as it has been for women. Gender identity is described as power relations. Issues of power are connected to the nature of one's relational infrastructure. A description of issues of heterosexual masculinity reveals that men are pit against men, gays, women, and minorities, resulting in a constricted expression of self-identity to avoid any appearance of non-masculinity. This creates in men a cycle of fear, shame, and powerlessness in contradiction to the experience of being in positions of privilege. Because men must hide their weakness they experience an imposter complex. Anger and anti-social behaviour can be linked to this. Male survivors of sexual abuse have similar issues of identity where the difference is one of degree, excepting extremely traumatized survivors. Specific nuances of hegemonic sensibilities for male survivors include the myths of contact contamination, male self-reliance, female innocence, and sexual initiation. Also, survivors unconsciously identify as a victim, with the abuser, and/or as a rescuer. Traumatic transference is given as a concept to show how the abuse may define the way the survivor perceives the world. Trauma, trauma reenactment, and dissociation are issues found to be more likely in survivors than in non-sexually abused males. The generalization is made that these issues create a difference between the two groups. However, in comparing these issues it is shown how these issues can also be issues of non-sexually abused males. Comparisons also illustrate the similarities and differences between the two groups. Conclusions suggest that a link between masculinity and abuse can be made on the basis of the underlying current of the lack of power in both groups of men. The nature of this link has to be determined by further research that embraces the diversity of male experience.
Density scaling and quasiuniversality of flow-event statistics for athermal plastic flows
Creators: name: Lerner, Edan
name: Bailey, Nicholas P.
name: Dyre, Jeppe C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Athermal plastic flows were simulated for the Kob-Andersen binary Lennard-Jones system and its repulsive version in which the sign of the attractive terms is changed to a plus. Properties evaluated from simulations at different densities include the distributions of energy drops, stress drops, and strain intervals between the flow events. By reference to hidden scale invariance we show that simulations at a single density in conjunction with an equilibrium-liquid simulation at the same density allows one to predict the plastic flow-event properties at other densities. We furthermore demonstrate quasiuniversality of the flow-event statistics.
The Main Sequence and the Fundamental Metallicity Relation in MaGICC Galaxies: Evolution and Scatter
Creators: name: Obreja, A.
name: Brook, C. B.
name: Stinson, G.
name: Domínguez-Tenreiro, R.
name: Gibson, B. K.
name: Silva, L.
name: Granato, G. L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using cosmological galaxy simulations from the MaGICC project, we study the evolution of the stellar masses, star formation rates and gas phase abundances of star forming galaxies. We derive the stellar masses and star formation rates using observational relations based on spectral energy distributions by applying the new radiative transfer code GRASIL-3D to our simulated galaxies. The simulations match well the evolution of the stellar mass-halo mass relation, have a star forming main sequence that maintains a constant slope out to redshift z $\sim$ 2, and populate projections of the stellar mass - star formation - metallicity plane, similar to observed star forming disc galaxies. We discuss small differences between these projections in observational data and in simulations, and the possible causes for the discrepancies. The light-weighted stellar masses are in good agreement with the simulation values, the differences between the two varying between 0.06 dex and 0.20 dex. We also find a good agreement between the star formation rate tracer and the true (time-averaged) simulation star formation rates. Regardless if we use mass- or light-weighted quantities, our simulations indicate that bursty star formation cycles can account for the scatter in the star forming main sequence.
description: 12 pages, 8 figures, submitted to MNRAS
Dimensionality of social networks using motifs and eigenvalues
Creators: name: Bonato, Anthony
name: Gleich, David F.
name: Kim, Myunghwan
name: Mitsche, Dieter
name: Prałat, Paweł
name: Tian, Amanda
name: Young, Stephen J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We consider the dimensionality of social networks, and develop experiments aimed at predicting that dimension. We find that a social network model with nodes and links sampled from an $m$-dimensional metric space with power-law distributed influence regions best fits samples from real-world networks when $m$ scales logarithmically with the number of nodes of the network. This supports a logarithmic dimension hypothesis, and we provide evidence with two different social networks, Facebook and LinkedIn. Further, we employ two different methods for confirming the hypothesis: the first uses the distribution of motif counts, and the second exploits the eigenvalue distribution.
description: 26 pages
Nonmagnetic ordering state of single-crystal SrTm$_2$O$_4$: A polarized and unpolarized neutron-scattering study
Creators: name: Li, Haifeng
name: Hou, Binyang
name: Wildes, Andrew
name: Senyshyn, Anatoliy
name: Schmalzl, Karin
name: Schmidt, Wolfgang
name: Zhang, Cong
name: Brueckel, Thomas
name: Roth, Georg
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences
subject: 61.05.fg, 75.25.-j, 75.47.Lx, 75.50.Ee

description: Our single-crystal polarized neutron scattering at 65 mK and powder unpolarized neutron diffraction at 0.5 K show no evidence for a long-range magnetic order and even detect no sign of diffuse magnetic neutron scattering in single-crystal SrTm2O4. The data refinements reveal that the two TmO6 octahedral distortion modes are the same as those of the TbO6 octahedra in SrTb2O4, i.e., one distortion is stronger than the other one especially at low temperatures, which is attributed probably to different crystal electric fields for the two inequivalent octahedra. Consequently, we conclude that SrTm2O4 has no magnetic order, neither long-ranged nor short-ranged, even down to 65 mK. Therefore, SrTm2O4 is a different compound from its brethren in the new family of frustrated SrRE2O4 (RE = Gd, Tb, Dy, Ho, Er, and Yb) magnets. We propose that crystal field anisotropy may dominate over weak dipolar spin interactions in SrTm2O4, leading to a virtually nonmagnetic ordering state.
description: 9 pages, 6 figures, 2 Tables
On plane waves in diluted relativistic cold plasmas
Creators: name: Fiore, Gaetano
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 76Wxx, 82D10, 35Qxx, 45Gxx

description: We briefly report on some exact results [G. Fiore, arXiv:1312.4665 preprint, to appear in J. Phys. A] regarding plane waves in a relativistic cold plasma. If the plasma, initially at rest, is reached by a transverse plane electromagnetic travelling-wave, then its motion has a very simple dependence on this wave in the limit of zero density, otherwise can be determined by an iterative procedure whose accuracy decreases with time or the plasma density. Thus one can describe in particular the impact of a very intense and short laser pulse onto a plasma and determine conditions for the "slingshot effect" [G. Fiore, R. Fedele, U. De Angelis, arXiv:1309.1400 preprint] to occur. The motion in vacuum of a charged test particle subject to a wave of the same kind is also determined, for any initial velocity.
description: Latex file, 14 pages. To appear in Acta Appl. Math., as proceedings of the XVII International Conference on Waves and Stability In Continuous Media(WASCOM) Levico, June 2013
Reverses and variations of Heinz inequality
Creators: name: Bakherad, Mojtaba
name: Moslehian, Mohammad Sal
Publisher: name: arXiv
Year: 2014
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: Primary 47A63, Secondary 47A60, 15A60, 15A42

description: Let $A, B$ be positive definite $n\times n$ matrices. We present several reverse Heinz type inequalities, in particular \begin{align*} \|AX+XB\|_2^2+ 2(ν-1) \|AX-XB\|_2^2\leq \|A^νXB^{1-ν}+A^{1-ν}XB^ν\|_2^2, \end{align*} where $X$ is an arbitrary $n \times n$ matrix, $\|\cdot\|_2$ is Hilbert-Schmidt norm and $ν>1$. We also establish a Heinz type inequality involving the Hadamard product of the form \begin{align*} 2|||A^{1\over2}\circ B^{1\over2}|||\leq|||A^{s}\circ B^{1-t}+A^{1-s}\circ B^{t}||| \leq\max\{|||(A+B)\circ I|||,|||(A\circ B)+I|||\}, \end{align*} in which $s, t\in [0,1]$ and $|||\cdot|||$ is a unitarily invariant norm.
description: 10 pages, to appear in Linear Multilinear Algebra
Hole probabilities of SU(m+1) Gaussian random polynomials
Creators: name: Zhu, Junyan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Complex Variables (math.CV)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper, we study hole probabilities $P_{0,m}(r,N)$ of SU(m+1) Gaussian random polynomials of degree $N$ over a polydisc $(D(0,r))^m$. When $r\geq1$, we find asymptotic formulas and decay rate of $\log{P_{0,m}(r,N)}$. In dimension one, we also consider hole probabilities over some general open sets and compute asymptotic formulas for the generalized hole probabilities $P_{k,1}(r,N)$ over a disc $D(0,r)$.
description: 35 pages
title: Ответственность представителя власти за оскорбление человека
title: Responsibility of an authority representative for insult of a person
Creators: name: Борков, Виктор Николаевич
Publisher: name: Издательский центр СурГУ
Year: 2020

description: В статье исследована проблема охраны чести и достоинства человека от оскорбления, совершаемого представителем власти. Цель работы состояла в оценке существующего баланса в правовой охране от оскорблений, с одной стороны, авторитета власти в лице ее представителей, с другой – чести и достоинства граждан. Решалась задача разработки научно-обоснованных подходов к юридической оценке действий должностного лица, которое превысило свои полномочия в форме оскорбления гражданина. Автором определена структура административно-деликтной, дисциплинарной и уголовно-правовой охраны чести и достоинства личности от посягательств должностных лиц. На основе анализа правовых источников сформулированы правила квалификации оскорблений, совершаемых представителями власти, разработаны критерии разграничения преступлений от иных правонарушений. Показано, что в действиях должностного лица, оскорбившего человека в связи с выполнением служебных обязанностей, содержатся признаки превышения должностных полномочий, которое будет обладать криминальной общественной опасностью только при существенном нарушении прав потерпевшего. Предложены авторские критерии оценки существенности нарушения законных интересов личности оскорблением должностного лица, которые помимо способа посягательства учитывают обстоятельства, характеризуют юридические, ситуационные и фактические особенности отношений между виновным и потерпевшим.
description: The article investigates the problem of protecting the honor and dignity of a person from insulting by a representative of the authority. The work aims to assess the existing balance between the authority of the official and the honor and dignity of citizens in legal protection against insults. The task of developing recommendations for qualifying the actions of an official who exceeded the authority in the form of insulting a citizen is presented. The author defines the structure of administrative, delict, disciplinary, and criminal law protection of honor and dignity of a person against the encroachments of officials. Based on the analysis of legal sources, the rules for the qualification of insults committed by representatives of the authorities are formulated, the criteria for distinguishing crimes from other offenses are developed. It is shown that the actions of an official who insulted a person in connection with the performance of official duties carry signs of abuse of power, which will have criminal public danger only in case of a significant violation of the rights of the victim. The author offers criteria for assessing the materiality of a violation of a person’s legitimate interests from insulting by an official, which, in addition to the method of offense, take into account circumstances, as well as legal, situational, and factual characteristics of the relationship between the guilty and the victim.
Prospects for heavy flavour measurements with the ALICE inner tracker upgrade
Creators: name: Terrevoli, Cristina
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: ALICE is the general purpose heavy-ion detector at the CERN LHC. Its goal is to investigate the properties of the strongly interacting matter under the extreme conditions of density and temperature reached in Pb{Pb collisions, with the aim to characterize the Quark-Gluon Plasma (QGP). In this scenario, the upgrade of the ALICE inner tracker targets physics topics in which ALICE can bring a unique contribution to the QGP characterization via the heavy avour probes. We present an overview of the inner tracker upgrade and the expected physics performance for heavy avour measurements.
description: Proceeding of Strangeness in Quark Matter 2013 (SQM 2013) conference, July 2013
Introduction
Creators: name: Jullion, Marie-Christine
Publisher: name: CRIANDO
Year: 2018

description: Introduzione al numero Economie del corpo femminile dal XVI al XXI secolo in America Latina, Europa e Giappone, a cura di Marie-Christine Jullion e Irina Bajini (Università degli Studi di Milano), Mélanie Moreau (Université de Bordeaux-Montaigne).
description: CRIANDO, N. 3 (2018): Economie del corpo femminile dal XVI al XXI secolo in America Latina, Europa e Giappone
Le marquage des esclaves
Creators: name: Lucas, Rafael
Publisher: name: CRIANDO
Year: 2018
Subjects: Esclavage; corps; marquage; Nouveau-Monde; fugitifs

description: Durant les siècles qu’a duré l’esclavage résultant de la traite négrière transatlantique, les processus de conditionnement, de répression et de déshumanisation se sont concentrés sur le corps de l’esclave. La cruauté des châtiments s’est concrétisée, entre autres, à travers trois éléments qui ont acquis une dimension symbolique considérable dans les Amériques : le fouet, les instruments de maltraitance et les chiens dressés pour la chasse aux fugitifs. Dans ce Nouveau Monde, dominé par un mercantilisme forcené, le corps de l’esclave devient le lieu surinvesti d’un exercice de pédagogie de la terreur.
description: CRIANDO, N. 3 (2018): Economie del corpo femminile dal XVI al XXI secolo in America Latina, Europa e Giappone
Non-linear Optical Spectroscopy of Excited Exciton States for Efficient Valley Coherence Generation in WSe2 Monolayers
Creators: name: Wang, G.
name: Marie, X.
name: Gerber, I.
name: Amand, T.
name: Lagarde, D.
name: Bouet, L.
name: Vidal, M.
name: Balocchi, A.
name: Urbaszek, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Monolayers (MLs) of MoS2 and WSe2 are 2D semiconductors with strong, direct optical transitions that are governed by tightly Coulomb bound eletron-hole pairs (excitons). The optoelectronic properties of these transition metal dichalcogenides are directly related to the inherent crystal inversion symmetry breaking. It allows for efficient second harmonic generation (SHG) and is at the origin of chiral optical selections rules, which enable efficient optical initialization of electrons in specific K-valleys in momentum space. Here we demonstrate how these unique non-linear and linear optical properties can be combined to efficiently prepare exciton valley coherence and polarization through resonant pumping of an excited exciton state. In particular a new approach to coherent alignment of excitons following two-photon excitation is demonstrated. We observe a clear deviation of the excited exciton spectrum from the standard Rydberg series via resonances in SHG spectroscopy and two- and one-photon absorption. The clear identification of the 2s and 2p exciton excited states combined with first principle calculations including strong anti-screening effects allows us to determine an exciton binding energy of the order of 600 meV in ML WSe2.
description: 9 pages, 5 figures + Supplementary Information
Adding SALT to Coupled Microcavities: the making of active photonic molecule lasers
Creators: name: Gagnon, Denis
name: Dumont, Joey
name: Déziel, Jean-Luc
name: Dubé, Louis J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A large body of work has accumulated over the years in the study of the optical properties of single and coupled microcavities for a variety of applications, ranging from filters to sensors and lasers. The focus has been mostly on the geometry of individual resonators and/or on their combination in arrangements often referred to as photonic molecules (PMs). Our primary concern will be the lasing properties of PMs as ideal candidates for the fabrication of integrated microlasers, photonic molecule lasers. Whereas most calculations on PM lasers have been based on cold-cavity (passive) modes, i.e. quasi-bound states, a recently formulated steady-state ab initio laser theory (SALT) offers the possibility to take into account the spectral properties of the underlying gain transition, its position and linewidth, as well as incorporating an arbitrary pump profile. We will combine two theoretical approaches to characterize the lasing properties of PM lasers: for two-dimensional systems, the generalized Lorenz-Mie theory will obtain the resonant modes of the coupled molecules in an active medium described by SALT. Not only is then the theoretical description more complete, the use of an active medium provides additional parameters to control, engineer and harness the lasing properties of PM lasers for ultra-low threshold and directional single-mode emission.
description: 16th International Conference on Transparent Optical Networks (2014)
Cuerpo santo y cuerpo esclavo en la Lima virreinal: los ayunos y las visiones de Úrsula y Rosa
Creators: name: Bajini, Irina
Publisher: name: CRIANDO
Year: 2018
Subjects: Virreinato del Perú; convento; monjas; Urusal de Jesús; San Martín de Porres

description: En el contexto peruano, la construcción de imágenes a través de las cuales proponer modelos de santidad y obediencia que devolvieran a la Iglesia aquella autoridad moral que la Reforma había puesto en tela de juicio, fue particularmente evidente. En los conventos que durante el siglo XVII proliferaron por todo el Virreinato del Perú, la práctica de la escritura se admitía, aunque no estaría entre sus tareas principales.
description: CRIANDO, N. 3 (2018): Economie del corpo femminile dal XVI al XXI secolo in America Latina, Europa e Giappone
Saperi e pratiche della mediazione nella Conquista del Nuovo Mondo
Creators: name: Cancellier, Antonella
Publisher: name: CRIANDO
Year: 2018
Subjects: Conquista; Nuovo Mondo; Malinche; mediazione; Hernán Cortés

description: A partire dalla Conquista, la figura dell’interprete occupa una posizione strategica nella storia linguistica, economica e culturale ispanoamericana. Emblematica risulta una donna, figura chiave nell’epistemologia dialogica interculturale e straordinaria mediatrice tra il Vecchio e Nuovo Mondo, che fu la traduttrice, la consigliera, l’amante di Cortés, da cui ebbe un figlio illegittimo, Martín, che Cortés riconobbe. Di fronte a questa nostra globalizzazione contemporanea segnata dai processi di integrazione, dalla mobilità, dall’interculturalità, dalle nuove frontiere dell’identità, la figura di questa eccezionale mediatrice linguistica e culturale avant la lettre è estremamente attuale, e ciò che essa mette in atto è oggi più necessario che mai.
description: CRIANDO, N. 3 (2018): Economie del corpo femminile dal XVI al XXI secolo in America Latina, Europa e Giappone
Fast electron propagation in Ti foils irradiated with sub-picosecond laser pulses at $Iλ^{2} > 10^{18}$ Wcm$^{-2} μm^{2}$
Creators: name: Makita, M
name: Nersisyan, G
name: McKeever, K
name: Dzelzainis, T
name: White, S
name: Kettle, B
name: Dromey, B
name: Doria, D
name: Zepf, M
name: Lewis, CLS
name: Riley, D
name: Hansen, S. B.
name: Robinson, A. P. L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We have studied the propagation of fast electrons through laser irradiated Ti foils by monitoring the emission of hard X-rays and K-α radiation from bare foils and foils backed by a thick epoxy layer. Key observations include strong refluxing of electrons and divergence of the electron beam in the foil with evidence of magnetic field collimation. Our diagnostics have allowed us to estimate the fast electron temperature and fraction of laser energy converted to fast electrons. We have observed clear differences between the fast electron temperatures observed with bare and epoxy backed targets which may be due to the effects of refluxing.
Un ‘oficio’ de mujer: ser partera
Creators: name: Barcia, María Del Carmen
Publisher: name: CRIANDO
Year: 2018
Subjects: Parteras; Cuba; Colonia; mujer; oficio

description: No vamos a evocar, en estas cuartillas, a mujeres intelectuales, hacedoras de versos, obras teatrales, cuentos o novelas. Simplemente vamos a contar historias, acciones o conductas de aquellas que desempeñaron un oficio, tal vez el primero, porque ha estado presente desde la Edad de Piedra, a la primera división del trabajo - que fue por sexos - y pasó al mundo antiguo, oriental y clásico, continuó durante el medioevo, transitó hacia la modernidad y aún se ejerce desde el llamado primer mundo hasta el considerado tercero o cuarto. Nos referimos a la ocupación de partear y a las conductas que desencadenaba en atención al cuerpo de la madre y al del recién nacido.
description: CRIANDO, N. 3 (2018): Economie del corpo femminile dal XVI al XXI secolo in America Latina, Europa e Giappone
Investigation on corrosion behaviour of metal oxide nanoparticles reinforced magnesium composites by salt spray and immersion corrosion test methods
Creators: name: Gnanavelbabu, A.
name: Vinothkumar, E.
name: Prahadeeswaran, M.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Space Science
Medicine
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: This study explores the increasing utilisation of lightweight materials, particularly magnesium (Mg) alloy, in sectors such as automobile, aerospace, and marine due to its notable advantages such as high strength-to-weight ratio, good castability, and excellent damping capacity. Despite these merits, Mg alloy faces challenges, notably in wear and corrosion resistance. The research focuses on enhancing the corrosion resistance of Mg alloy by incorporating Zinc Oxide (ZnO), Manganese Oxide (MnO), and Titanium Oxide (TiO2) nanoparticles. The alloy AZ91D and three nanocomposites, namely AZ91D + 1% ZnO, AZ91D + 1% MnO, and AZ91D + 1% TiO2, were manufactured using a stir squeeze casting technique combined with an ultrasonication process. To confirm the even distribution of reinforcement particles, Optical Microscope (OM), Scanning Electron Microscope (SEM) and High-Resolution Scanning Electron Microscope (HR-SEM) were employed. X-ray Diffraction (XRD) analysis revealed the presence of matrix and reinforcement material with intermetallic precipitates around the grain boundaries. Corrosion properties were assessed following ASTM standards and utilising a 3.5% NaCl concentration. The study found that AZ91D + 1% TiO2 nanocomposites exhibited superior corrosion resistance compared to the AZ91D alloy, showing a remarkable 77.78% and 69.89% improvement in corrosion behaviour under salt spray and immersion environments, respectively, after 48 hours.
Un algorithme de test pour la connexité temporelle des graphes dynamiques de faible densité
Creators: name: Barjon, Matthieu
name: Casteigts, Arnaud
name: Chaumette, Serge
name: Johnen, Colette
name: Neggaz, Yessin M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: We address the problem of testing whether a dynamic graph is temporally connected, i.e. a temporal path ({\em journey}) exists between all pairs of vertices. We consider a discrete version of the problem, where the topology is given as an evolving graph $\G=\{G_1,G_2,...,G_{k}\}$ in which only the set of (directed) edges varies. Two cases are studied, depending on whether a single edge or an unlimited number of edges can be crossed in a same $G_i$ (strict journeys {\it vs} non-strict journeys). For strict journeys, two existing algorithms designed for other problems can be adapted. However, we show that a dedicated approach achieves a better time complexity than one of these two algorithms in all cases, and than the other one for those graphs whose density is low at any time (though arbitrary over time). The time complexity of our algorithm is $O(kμn)$, where $k=|\G|$ is the number of time steps and $μ=max(|E_i|)$ is the maximum {\em instant} density, to be contrasted with $m=|\cup E_i|$, the {\em cumulated} density. Indeed, it is not uncommon for a mobility scenario to satisfy, for instance, both $μ=o(n)$ and $m=Θ(n^2)$. We characterize the key values of $k, μ$ and $m$ for which our algorithm should be used. For non-strict journeys, for which no algorithm is known, we show that a similar strategy can be used to answer the question, still in $O(kμn)$ time.
VSCAN: An Enhanced Video Summarization using Density-based Spatial Clustering
Creators: name: Mohamed, Karim M.
name: Ismail, Mohamed A.
name: Ghanem, Nagia M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: In this paper, we present VSCAN, a novel approach for generating static video summaries. This approach is based on a modified DBSCAN clustering algorithm to summarize the video content utilizing both color and texture features of the video frames. The paper also introduces an enhanced evaluation method that depends on color and texture features. Video Summaries generated by VSCAN are compared with summaries generated by other approaches found in the literature and those created by users. Experimental results indicate that the video summaries generated by VSCAN have a higher quality than those generated by other approaches.
description: arXiv admin note: substantial text overlap with arXiv:1401.3590 by other authors without attribution
Discrete $d$-dimensional moduli of smoothness
Creators: name: Ditzian, Z.
name: Prymak, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: Primary 26B35. Secondary 41A05, 41A15, 41A25, 41A40, 41A63

description: We show that on the $d$-dimensional cube $I^d\equiv [0,1]^d$ the discrete moduli of smoothness which use only the values of the function on a diadic mesh are sufficient to determine the moduli of smoothness of that function. As an important special case our result implies for $f\in C(I^d)$ and given integer $r$ that when $00$ and $|u|=1$ such that $x,x+rhu\in I^d$.
Super persistent transient in a master-slave configuration with Colpitts oscillators
Creators: name: Bonetti, R. C.
name: de Souza, S. L. T.
name: Batista, A. M.
name: Szezech, J. D.
name: Caldas, I. L.
name: Viana, R. L.
name: Lopes, S. R.
name: Baptista, M. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Master-slave systems have been intensively investigated to model the application of chaos to communications. We considered Colpitts oscillators coupled according to a master-slave configuration to study chaos synchronisation. We revealed the existence of super persistent transients in this coupled system. Moreover, we showed that an additive noise added to the slave system may suppress chaos synchronisation. When synchronisation is not suppressed, the noise induces longer transients.
Numerical investigation on the effect of impeller axial position on hemodynamics of an extracorporeal centrifugal blood pump
Creators: name: Lv, Shen
name: He, Zhi-Peng
name: Liu, Guang-Mao
name: Hu, Sheng-Shou
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Cell Biology
Biotechnology
Biological Sciences not elsewhere classified
Plasma Physics
Computational Biology

description: Extracorporeal centrifugal blood pumps are used to treat cardiogenic shock. Owing to the imbalanced excitation or initial assembly configurations, the variation in the impeller axial position has the potential to affect the blood pump performance. This study compared the hydrodynamics and hemolysis outcomes at different impeller axial positions via numerical simulations. The result shows that pressure difference of the blood pump decreased with increasing impeller axial position, with decreasing by 4.5% at a flow rate of 2 L/min. Under axial impeller motion close to the top pump casing, average wall shear stress and scalar shear stress reached their maximum values (64.2 and 29.1 Pa, respectively). The residence time in the impeller center hole and bottom clearance were extended to 0.5 s by increasing impeller axial position. Compared to the baseline blood pump, hemolysis index increased by 12.3% and 24.3% when impeller axial position is 2.5 and 4.0 mm, respectively. As a novelty, the findings reveal that the impeller axial position adversely affects hemolysis performance when the impeller is close to the pump casing. Therefore, in the development process of centrifugal blood pumps, the optimal axial position of the impeller must be defined to ensure hemodynamic performance.
Jet quenching effects on the anisotropic flow at RHIC
Creators: name: Andrade, Rone P. G.
name: Noronha, Jorge
name: Denicol, Gabriel S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In this article we investigate how the energy and momentum deposited by partonic dijets in the quark-gluon plasma may perturb the geometry-induced hydrodynamic expansion of the bulk nuclear matter created in heavy ion collisions at RHIC. The coupling between the jets and the medium is done through a source term in the energy-momentum conservation equations for ideal hydrodynamics. We concentrate our attention at mid-rapidity and solve the equations event-by-event imposing boost-invariance. For $p_T \gtrsim 1$ GeV the anisotropic flow is found to be considerably enhanced, if the dijets deposit on average more than 12 GeV in the medium (or equivalently 6 GeV for each jet of the pair), which corresponds, in our model, to an average suppression greater than $65\%$ of the initial jet transverse energy.
description: 4 pages, 2 figures, Proceedings for the 6th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions (Hard Probes 2013)
Magnetic states of the five-orbital Hubbard model for one-dimensional iron-based superconductors
Creators: name: Luo, Qinlong
name: Foyevtsova, Kateryna
name: Samolyuk, German D.
name: Reboredo, Fernando
name: Dagotto, Elbio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The magnetic phase diagrams of models for quasi one-dimensional compounds belonging to the iron-based superconductors family are presented. The five-orbital Hubbard model and the real-space Hartree-Fock approximation are employed, supplemented by density functional theory to obtain the hopping amplitudes. Phase diagrams are constructed varying the Hubbard $U$ and Hund $J$ couplings and at zero temperature. The study is carried out at electronic density (electrons per iron) $n = 5.0$, which is of relevance for the already known material TlFeSe$_2$, and also at $n = 6.0$, where representative compounds still need to be synthesized. At $n = 5.0$ there is a clear dominance of staggered spin order along the chain direction. At $n = 6.0$ and the realistic Hund coupling $J/U = 0.25$, the phase diagram is far richer including a variety of ``block'' states involving ferromagnetic clusters that are antiferromagnetically coupled, in qualitative agreement with recent Density Matrix Renormalization Group calculations for the three-orbital Hubbard model in a different context. These block states arise from the competition between ferromagnetic order (induced by double exchange, and prevailing at large $J/U$) and antiferromagnetic order (dominating at small $J/U$). The density of states and orbital compositions of the many phases are also provided.
description: 12 pages, 11 figures
Quasi-Periodic Variations in X-ray Emission and Long-Term Radio Observations: Evidence for a Two-Component Jet in Sw J1644+57
Creators: name: Wang, Jiu-Zhou
name: Lei, Wei-Hua
name: Wang, Ding-Xiong
name: Zou, Yuan-Chuan
name: Zhang, Bing
name: Gao, He
name: Huang, Chang-Yin
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The continued observations of Sw J1644+57 in X-ray and radio bands accumulated a rich data set to study the relativistic jet launched in this tidal disruption event. The X-ray light curve of Sw J1644+57 from 5-30 days presents two kinds of quasi-periodic variations: a 200 second quasi-periodic oscillation (QPO) and a 2.7-day quasi-periodic variation. The latter has been interpreted by a precessing jet launched near the Bardeen-Petterson radius of a warped disk. Here we suggest that the $\sim$ 200s QPO could be associated with a second, narrower jet sweeping the observer line-of-sight periodically, which is launched from a spinning black hole in the misaligned direction with respect to the black hole's angular momentum. In addition, we show that this two-component jet model can interpret the radio light curve of the event, especially the re-brightening feature starting $\sim 100$ days after the trigger. From the data we infer that inner jet may have a Lorentz factor of $Γ_{\rm j} \sim 5.5$ and a kinetic energy of $E_{\rm k,iso} \sim 3.0 \times 10^{52} {\rm erg}$, while the outer jet may have a Lorentz factor of $Γ_{\rm j} \sim 2.5$ and a kinetic energy of $E_{\rm k,iso} \sim 3.0 \times 10^{53} {\rm erg}$.
description: 11 pages, 7 figures, accepted for publication in ApJ
Link-Reliability Based Two-Hop Routing for Wireless Sensor Networks
Creators: name: Prakash, T Shiva
name: Raja, K B
name: Venugopal, K R
name: Iyengar, S S
name: Patnaik, L M
Publisher: name: arXiv
Year: 2014
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Wireless Sensor Networks (WSNs) emerge as underlying infrastructures for new classes of large scale net- worked embedded systems. However, WSNs system designers must fulfill the Quality-of-Service (QoS) requirements imposed by the applications (and users). Very harsh and dynamic physical environments and extremely limited energy/computing/memory/communication node resources are major obstacles for satisfying QoS metrics such as reliability, timeliness and system lifetime. The limited communication range of WSN nodes, link asymmetry and the characteristics of the physical environment lead to a major source of QoS degradation in WSNs. This paper proposes a Link Reliability based Two-Hop Routing protocol for wireless Sensor Networks (WSNs). The protocol achieves to reduce packet deadline miss ratio while consid- ering link reliability, two-hop velocity and power efficiency and utilizes memory and computational effective methods for estimating the link metrics. Numerical results provide insights that the protocol has a lower packet deadline miss ratio and longer sensor network lifetime. The results show that the proposed protocol is a feasible solution to the QoS routing problem in wireless sensor networks that support real-time applications.
description: 15 pages. arXiv admin note: substantial text overlap with arXiv:1402.7198
Bulldozing of granular material
Creators: name: Sauret, A.
name: Balmforth, N. J.
name: Caulfield, C. P.
name: McElwaine, J. N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the bulldozing motion of a granular sandpile driven forwards by a vertical plate. The problem is set up in the laboratory by emplacing the pile on a table rotating underneath a stationary plate; the continual circulation of the bulldozed material allows the dynamics to be explored over relatively long times, and the variation of the velocity with radius permits one to explore the dependence on bulldozing speed within a single experiment. We measure the time-dependent surface shape of the dune for a range of rotation rates, initial volumes and radial positions, for four granular materials, ranging from glass spheres to irregularly shaped sand. The evolution of the dune can be separated into two phases: a rapid initial adjustment to a state of quasi-steady avalanching perpendicular to the blade, followed by a much slower phase of lateral spreading and radial migration. The quasi-steady avalanching sets up a well-defined perpendicular profile with a nearly constant slope. This profile can be scaled by the depth against the bulldozer to collapse data from different times, radial positions and experiments onto common master curves that are characteristic of the granular material and depend on the local Froude number. The lateral profile of the dune along the face of the bulldozer varies more gradually with radial position, and evolves by slow lateral spreading. The spreading is asymmetrical, with the inward progress of the dune eventually arrested and its bulk migrating to larger radii. A one-dimensional depth-averaged model recovers the nearly linear perpendicular profile of the dune, but does not capture the finer nonlinear details of the master curves. A two-dimensional version of the model leads to an advection-diffusion equation that reproduces the lateral spreading and radial migration.
Satellites of Radio AGN in SDSS: Insights into AGN Triggering and Feedback
Creators: name: Pace, Cameron
name: Salim, Samir
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the effects of radio jets on galaxies in their vicinity (satellites) and the role of satellites in triggering radio-loud active galactic nuclei (AGNs). The study compares the aggregate properties of satellites of a sample of 7,220 radio AGNs at z < 0.3 (identified by Best & Heckman 2012 from the SDSS and NVSS+FIRST surveys) to the satellites of a control sample of radio-quiet galaxies, which are matched in redshift, color, luminosity, and axis ratio, as well as by environment type: field galaxies, cluster members and brightest cluster galaxies (BCGs). Remarkably, we find that radio AGNs exhibit on average a 50% excess (17σ significance) in the number of satellites within 100 kpc even though the cluster membership was controlled for (e.g., radio BCGs have more satellites than radio-quiet BCGs, etc.). Satellite excess is not confirmed for high-excitation sources, which are only 2% of radio AGN. Extra satellites may be responsible for raising the probability for hot gas AGN accretion via tidal effects or may otherwise enhance the intensity or duration of the radio-emitting phase. Furthermore, we find that the incidence of radio AGNs among potential hosts (massive ellipticals) is similar for field galaxies and for non-BCG cluster members, suggesting that AGN fueling depends primarily on conditions in the host halo rather than the parent, cluster halo. Regarding feedback, we find that radio AGNs, either high or low excitation, have no detectable effect on star formation in their satellites, as neither induced star formation nor star formation quenching is present in more than ~1% of radio AGN.
description: Accepted for Publication in ApJ
Energy levels, radiative rates and electron impact excitation rates for transitions in Si II
Creators: name: Aggarwal, KM
name: Keenan, FP
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Energies for the lowest 56 levels, belonging to the 3s$^2$3p, 3s3p$^2$, 3p$^3$, 3s$^2$3d, 3s3p3d, 3s$^2$4$\ell$ and 3s$^2$5$\ell$ configurations of Si II, are calculated using the {\sc grasp} (General-purpose Relativistic Atomic Structure Package) code. Analogous calculations have also been performed (for up to 175 levels) using the Flexible Atomic Code ({\sc fac}). Furthermore, radiative rates are calculated for all E1, E2, M1 and M2 transitions. Extensive comparisons are made with available theoretical and experimental energy levels, and the accuracy of the present results is assessed to be better than 0.1 Ryd. Similarly, the accuracy for radiative rates (and subsequently lifetimes) is estimated to be better than 20% for most of the (strong) transitions. Electron impact excitation collision strengths are also calculated, with the Dirac Atomic R-matrix Code ({\sc darc}), over a wide energy range up to 13 Ryd. Finally, to determine effective collision strengths, resonances are resolved in a fine energy mesh in the thresholds region. These collision strengths are averaged over a Maxwellian velocity distribution and results listed over a wide range of temperatures, up to 10$^{5.5}$ K. Our data are compared with earlier $R$-matrix calculations and differences noted, up to a factor of two, for several transitions. Although scope remains for improvement, the accuracy for our results of collision strengths and effective collision strengths is assessed to be about 20% for a majority of transitions.
description: Text: 8 pages, Tables: 6, Figures: 8 Will appear in MNRAS (2014)
Coronal Mass Ejections and Angular Momentum Loss in Young Stars
Creators: name: Aarnio, Alicia
name: Stassun, Keivan
name: Matt, Sean
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In our own solar system, the necessity of understanding space weather is readily evident. Fortunately for Earth, our nearest stellar neighbor is relatively quiet, exhibiting activity levels several orders of magnitude lower than young, solar-type stars. In protoplanetary systems, stellar magnetic phenomena observed are analogous to the solar case, but dramatically enhanced on all physical scales: bigger, more energetic, more frequent. While coronal mass ejections (CMEs) could play a significant role in the evolution of protoplanets, they could also affect the evolution of the central star itself. To assess the consequences of prominence eruption/CMEs, we have invoked the solar-stellar connection to estimate, for young, solar-type stars, how frequently stellar CMEs may occur and their attendant mass and angular momentum loss rates. We will demonstrate the necessary conditions under which CMEs could slow stellar rotation.
description: Proceedings IAU Symposium No. 300, Nature of prominences and their role in space weather