bluuebunny/crossref_metadata_2025 huggingface dataset:
Higher Radial Harmonics of Sausage Oscillations in Coronal Loops
Authors: Lim Daye , Nakariakov Valery M. , Yu Dae Jung , Cho Il-Hyun , Moon Yong-Jae
Published: April 2020

Impulsively excited sausage oscillations of a plasma cylinder with a smooth radial profile of Alfvén speed are analyzed with a numerical solution of the initial-value problem for a partial differential equation of the Klein–Gordon type, describing linear magnetoacoustic oscillations with a fixed axial wavelength and an azimuthal mode number. The range of analyzed ratios of Alfvén speeds outside and inside the cylinder is from 2 to 10. Both trapped and leaky regimes of the oscillations are considered. It is shown that even in the long-wavelength limit, i.e., for axial wavenumbers much smaller than the cutoff values, damping times of higher radial sausage harmonics could be significantly greater than the oscillation periods, i.e., several oscillation cycles could be present in the signal. The quality factors decrease with decfreasing ratios of Alfvén speeds outside and inside the cylinder. Oscillation periods of the second and third radial harmonics remain practically independent of the axial wavelength even when the wavelength is shorter than the radius of the cylinder. The ratios of oscillation periods of fundamental and higher radial and axial harmonics are found to be significantly different, up to a factor of two in the long-wavelength limit. It is concluded that higher radial harmonics could be responsible for the departure of observed sausage oscillation signals from a harmonic shape, especially during the first several cycles of the oscillation. Even in the absence of spatially resolved data, higher axial and radial harmonics can be distinguished from each other by the period ratios.
Constraints on the Muon Fraction and Density Profile in Neutron Stars
Authors: Zhang Nai-Bo , Li Bao-An
Published: April 2020

Muons in neutron stars (NSs) play especially important roles in addressing several interesting new physics questions associated with detecting as well as understanding interactions and astrophysical effects of muonphilic dark matter particles. The key model inputs for studying the latter are the total muon mass M

μ
, the muon mass fraction M

μ
/M
NS over the NS mass M
NS, and the muon radial density profile ρ

μ
(r) in NSs of varying masses. We investigate these quantities within a minimum model for the core of NSs consisting of neutrons, protons, electrons, and muons using an explicitly isospin-dependent parametric equation of state (EOS) constrained by available nuclear laboratory experiments and the latest astrophysical observations of NS masses, radii, and tidal deformabilities. We found that the absolutely maximum muon mass M

μ
and its mass fraction M

μ
/M
NS in the most massive NSs allowed by causality are about 0.025 M
⊙ and 1.1%, respectively. For the most massive NS of mass 2.14 M
⊙ observed so far, they reduce to about 0.020 M
⊙ and 0.9%, respectively. We also study respective effects of individual parameters describing the EOS of high-density neutron-rich nucleonic matter on the muon contents in NSs with varying masses. We found that the most important but uncertain nuclear physics ingredient for determining the muon contents in NSs is the high-density nuclear symmetry energy.
Transition from Ordered Pinched to Warped Magnetic Field on a 100 au Scale in the Class 0 Protostar B335
Authors: Yen Hsi-Wei , Zhao Bo , Koch Patrick , Krasnopolsky Ruben , Li Zhi-Yun , Ohashi Nagayoshi , Shang Hsien , Takakuwa Shigehisa , Tang Ya-Wen
Published: April 2020

We present our observational results of the 0.87 mm polarized dust emission in the Class 0 protostar B335 obtained with the Atacama Large Millimeter/submillimeter Array (ALMA) at a 0.″2 (20 au) resolution. We compared our data at 0.87 mm with those at 1.3 mm from the ALMA archive. The observed polarization orientations at the two wavelengths are consistent within the uncertainty, and the polarization percentages are systematically higher at 1.3 mm than 0.87 mm by a factor of ∼1.7, suggesting that the polarized emission originates from magnetically aligned dust grains. We inferred the magnetic field orientations from the observed polarization orientations. We found that the magnetic field changes from ordered and highly pinched to more complicated and asymmetric structures within the inner 100 au scale of B335, and the magnetic field connects to the center along the equatorial plane as well as along the directions that are ∼40°–60° from the equatorial plane. We performed nonideal MHD simulations of collapsing dense cores. We found that similar magnetic field structures appear in our simulations of dense cores with the magnetic field and rotational axis slightly misaligned by 15° but not in those with the aligned magnetic field and rotational axis. Our results suggest that the midplane of the inner envelope within the inner 100 au scale of B335 could be warped because of the misaligned magnetic field and rotational axis, and the magnetic field could be dragged by the warped accretion flows.
A Deep Exposure in High Resolution X-Rays Reveals the Hottest Plasma in the ζ Puppis Wind
Authors: Huenemoerder David P. , Ignace Richard , Miller Nathan A. , Gayley Kenneth G. , Hamann Wolf-Rainer , Lauer Jennifer , Moffat Anthony F. J. , Nazé Yaël , Nichols Joy S. , Oskinova Lidia , Richardson Noel D. , Waldron Wayne
Published: April 2020

We have obtained a very deep exposure (813 ks) of ζ Puppis (O4 supergiant) with the Chandra HETG Spectrometer. Here we report on analysis of the 1–9 Å region, especially well suited for Chandra, which has a significant contribution from continuum emission between well separated emission lines from high-ionization species. These data allow us to study the hottest plasma present through the continuum shape and emission line strengths. Assuming a power-law emission measure distribution that has a high-temperature cutoff, we find that the emission is consistent with a thermal spectrum having a maximum temperature of 12 MK as determined from the corresponding spectral cutoff. This implies an effective wind shock velocity of 900 km s−1, well below the wind terminal speed of 2250 km s−1. For X-ray emission that forms close to the star, the speed and X-ray flux are larger than can be easily reconciled with strictly self-excited line-deshadowing-instability models, suggesting a need for a fraction of the wind to be accelerated extremely rapidly right from the base. This is not so much a dynamical instability as a nonlinear response to changing boundary conditions.
Disk Structure around the Class I Protostar L1489 IRS Revealed by ALMA: A Warped-disk System
Authors: Sai Jinshi , Ohashi Nagayoshi , Saigo Kazuya , Matsumoto Tomoaki , Aso Yusuke , Takakuwa Shigehisa , Aikawa Yuri , Kurose Ippei , Yen Hsi-Wei , Tomisaka Kohji , Tomida Kengo , Machida Masahiro N.
Published: April 2020

We have observed the Class I protostar L1489 IRS with the Atacama Millimeter/submillimeter Array (ALMA) in Band 6. The C18O J = 2–1 line emission shows flattened and non-axisymmetric structures in the same direction as its velocity gradient due to rotation. We discovered that the C18O emission shows dips at a radius of ∼200–300 au while the 1.3 mm continuum emission extends smoothly up to r ∼ 400 au. At the radius of the C18O dips, the rotational axis of the outer portion appears to be tilted by ∼15° from that of the inner component. Both the inner and outer components with respect to the C18O dips exhibit the r
−0.5 Keplerian rotation profiles until r ∼ 600 au. These results not only indicate that a Keplerian disk extends up to ∼600 au but also that the disk is warped. We constructed a three-dimensional warped-disk model rotating at the Keplerian velocity, and demonstrated that the warped-disk model reproduces main observed features in the velocity channel maps and the PV diagrams. Such a warped-disk system can form by mass accretion from a misaligned envelope. We also discuss a possible disk evolution scenario based on comparisons of disk radii and masses between Class I and Class II sources.
Milky Way Satellite Census. II. Galaxy–Halo Connection Constraints Including the Impact of the Large Magellanic Cloud
Authors: Nadler E. O. , Wechsler R. H. , Bechtol K. , Mao Y.-Y. , Green G. , Drlica-Wagner A. , McNanna M. , Mau S. , Pace A. B. , Simon J. D. , Kravtsov A. , Dodelson S. , Li T. S. , Riley A. H. , Wang M. Y. , Abbott T. M. C. , Aguena M. , Allam S. , Annis J. , Avila S. , Bernstein G. M. , Bertin E. , Brooks D. , Burke D. L. , Rosell A. Carnero , Kind M. Carrasco , Carretero J. , Costanzi M. , da Costa L. N. , De Vicente J. , Desai S. , Evrard A. E. , Flaugher B. , Fosalba P. , Frieman J. , García-Bellido J. , Gaztanaga E. , Gerdes D. W. , Gruen D. , Gschwend J. , Gutierrez G. , Hartley W. G. , Hinton S. R. , Honscheid K. , Krause E. , Kuehn K. , Kuropatkin N. , Lahav O. , Maia M. A. G. , Marshall J. L. , Menanteau F. , Miquel R. , Palmese A. , Paz-Chinchón F. , Plazas A. A. , Romer A. K. , Sanchez E. , Santiago B. , Scarpine V. , Serrano S. , Smith M. , Soares-Santos M. , Suchyta E. , Tarle G. , Thomas D. , Varga T. N. , Walker A. R. ,   (DES Collaboration)
Published: April 2020

The population of Milky Way (MW) satellites contains the faintest known galaxies and thus provides essential insight into galaxy formation and dark matter microphysics. Here we combine a model of the galaxy–halo connection with newly derived observational selection functions based on searches for satellites in photometric surveys over nearly the entire high Galactic latitude sky. In particular, we use cosmological zoom-in simulations of MW-like halos that include realistic Large Magellanic Cloud (LMC) analogs to fit the position-dependent MW satellite luminosity function. We report decisive evidence for the statistical impact of the LMC on the MW satellite population due to an estimated 6 ± 2 observed LMC-associated satellites, consistent with the number of LMC satellites inferred from Gaia proper-motion measurements, confirming the predictions of cold dark matter models for the existence of satellites within satellite halos. Moreover, we infer that the LMC fell into the MW within the last 2 Gyr at high confidence. Based on our detailed full-sky modeling, we find that the faintest observed satellites inhabit halos with peak virial masses below

at 95% confidence, and we place the first robust constraints on the fraction of halos that host galaxies in this regime. We predict that the faintest detectable satellites occupy halos with peak virial masses above

, highlighting the potential for powerful galaxy formation and dark matter constraints from future dwarf galaxy searches.
Integrative description of Diosaccus koreanus sp. nov. (Hexanauplia, Harpacticoida, Miraciidae) and integrative information on further Korean species
Authors: Lim Byung-Jin , Bang Hyun Woo , Moon Heejin , Back Jinwook
Published: April 2020

A new species of Diosaccus Boeck, 1873 (Arthropoda, Hexanauplia, Harpacticoida) was recently discovered in Korean waters. The species was previously recognized as D. ezoensis Itô, 1974 in Korea but, here, is described as a new species, D. koreanussp. nov., based on the following features: 1) second inner seta on exopod of fifth thoracopod apparently longest in female, 2) outer margin of distal endopodal segment of second thoracopod ornamented with long setules in male, 3) caudal seta VII located halfway from base of rami (vs. on anterior extremity in D. ezoensis), and 4) sixth thoracopod with three setae in female (vs. 2 setae in D. ezoensis). In addition, there is also a mitochondrial COI sequence difference of more than 19.93% with D. ezoensis registered in NCBI. A key to Diosaccus species of the world is also provided, and new morphological features and DNA sequences are presented for two other harpacticoid species, Parathalestris verrucosa Itô, 1970 and Peltidium quinquesetosum Song & Yun, 1999. In order to clearly identify harpacticoids at the species level, both morphological and DNA sequence characteristics should be considered.
Two new pseudoscorpion species (Pseudoscorpiones, Chthoniidae, Cheiridiidae) from the Tonga Islands, Polynesia, with a redescription of the genus Nesocheiridium
Authors: Krajčovičová Katarína , Matyukhin Aleksandr Vladimirovich , Christophoryová Jana
Published: April 2020

The genera Tyrannochthonius Chamberlin, 1929 and Nesocheiridium Beier, 1957 are recorded from the Tonga Islands, Polynesia, for the first time. Tyrannochthonius euasp. nov. is described from the island of Eua. Nesocheiridium onevaisp. nov. is described from the island of Onevai. This is the first discovery of a representative of the genus Nesocheiridium in more than 60 years. The holotype of the type species, Nesocheiridium stellatum Beier, 1957, is redescribed, allowing a better understanding of this poorly known genus. The genus Nesocheiridium is diagnosed by the following combination of characters: integument coarsely granulate, dorsally granulo-reticulate; vestitural setae either relatively long, with a leaf-like outline, or arcuate with a small spine; cucullus short; only 10 abdominal tergites visible in dorsal view; cheliceral rallum of four blades; venom apparatus present in both chelal fingers; fixed chelal finger with granulate swelling mesally and seven trichobothria; trichobothria ib and ist located distad of granulate swelling; eb and esb situated close together at the base of the finger; moveable chelal finger with two trichobothria.
Clinique des adolescents en souffrance de latence
Authors: Guinard Frédérik
Published: April 2020

La clinique adolescente attire notre attention sur la raréfaction des mouvements d’exploration de son environnement et de sa vie psychique chez certains sujets inhibés ou ne tolérant pas la frustration. L’intérêt porté aux latences « en souffrance » renouvelle la compréhension de cette période du développement psychosexuel humain qui a longtemps été perçue/conçue comme « silencieuse » et d’envisager les leviers possibles de relance des processus transitionnels associés au travail de latence.
Franchir une frontière à l’adolescence
Authors: Chapellon Sébastien
Published: April 2020

Le fait de devoir quitter sa terre natale pour s’installer dans un pays étranger aux mœurs inconnues, produit des bouleversements psychiques considérables, surtout au moment de l’adolescence ! À cette période de la vie, il est particulièrement ardu de se confronter aux deuils et aux changements qu’impose la migration. En témoigne, le cas d’une adolescente aux prises avec un contexte migratoire douloureux mettant en exergue la fonction contenante du cadre culturel.
L’abandon thérapeutique, une réalité chez des auteurs de violence conjugale
Authors: Léveillée Suzanne , Touchette Lysianne , Ayotte Robert , Blanchette Danièle , Brisson Martin , Brunelle Alain , Turcotte Claude , Lévesque Carolanne Vignola
Published: April 2020

Le présent article traite des caractéristiques psychologiques, sociales et criminologiques d’auteurs de violence conjugale qui consultent dans un organisme spécialisé et, plus spécifiquement, sur l’abandon thérapeutique. Nos résultats mettent en évidence des caractéristiques qui diffèrent chez les hommes ayant complété leur suivi ( N = 36) et ceux l’ayant abandonné ( N = 40). Les hommes ayant abandonné leur suivi sont significativement plus jeunes que ceux l’ayant complété et ils sont plus nombreux à avoir commis des infractions contre les biens, à exercer de la violence sexuelle envers leur conjointe, à consommer des drogues et à avoir vécu une intervention de la Direction de la protection de la jeunesse (DPJ). De plus, un nombre plus élevé d’hommes présentant de l’alexithymie et de l’impulsivité ont abandonné leur suivi. L’impact clinique de ces résultats et des pistes de recherche sont proposés dans cet article.
Philosophie et vie dans l’ Apologie de Socrate
Authors: Brancacci Aldo
Published: April 2020

Cet article se propose de mettre en lumière la centralité du thème de la vie, et du rapport entre vie et pensée, dans la philosophie de Socrate. Ce thème est étroitement lié chez Socrate à la justification du sens de sa propre philosophie, qui repose non pas sur un certain « mode de vie », mais sur une série de principes théoriques forts et clairement définis. Or ces principes ne peuvent se réaliser que lorsqu’ils trouvent leur matière d’actualisation et leur instrument de contrôle dans la réalité de la vie. Cela implique l’élaboration d’un nouveau concept de « vie », ainsi que du concept fondamental de « vivre en philosophant » : ce dernier indique une sorte de déplacement continu du plan de la pensée au plan de la vie, et vice versa, du particulier à l’universel, et vice versa, car seul, chacun des deux est insuffisant.
La conception aristotélicienne des fonctions cérébrales
Authors: Derome Léa
Published: April 2020

Le présent article fait le point sur la théorie aristotélicienne des fonctions cérébrales. La première section établit les raisons qui incitent Aristote à rejeter les théories encéphalocentristes, popularisées par certains de ses devanciers, qui faisaient du cerveau le siège des activités psychiques. Sur la base d’arguments anatomiques, Aristote conclut que le cerveau ne possède aucune fonction sensorielle ou intellectuelle. Or cette exclusion n’implique pas que le cerveau est sans importance physiologique, comme le relève la seconde section. Dans la physiologie aristotélicienne, le cerveau forme avec le cœur et la méninge vascularisée un véritable système intégré de régulation thermique fondé sur l’équilibre des contraires. Tout en étant essentiel à la santé et responsable de la production du sommeil, ce système contribue en outre à l’optimisation des activités sensorielles, et partant, à l’optimisation des activités cognitives qui dépendent de la sensation. Examiner ainsi le rôle du cerveau dans toutes ses ramifications fait incidemment apprécier comment la notion de juste milieu, en l’occurrence de juste milieu thermique , permet à Aristote de problématiser l’efficacité du corps en tant qu’outil de la sensation.
Ut die noctuque sic diligenter et fideliter ipsa debeant custodire. Quelques réflexions sur la carrière des officiers frontaliers du Royaume de Sicile sous Charles Ier et Charles II d’Anjou (1266-1309)
Authors: Toomaspoeg Kristjan
Published: April 2020

Une étude prosopographique de l'ensemble du personnel administratif angevin actif sur la frontière entre le Royaume et les États de l'Église permet de cerner 150 cas d'hommes qui ont effectué une vrai et propre « carrière », en arrivant quelquefois au sommet du parcours d'un officier. Parmi ces fonctionnaires se comptent les « maîtres des pas », donc responsables du contrôle militaire et douanier de la frontière, les « capitaines de la Montagne » qui supervisent la zone autour du Monte Terminillo, les capitaines des villes stratégiques comme L'Aquila, mais aussi les plus modestes châtelains des forteresses royales et même quelques simples écuyers et soldats. Un autre parcours administratif était celui des juristes, actifs comme assesseurs des justiciers et capitaines et comme enquêteurs. Ces officiers représentent diverses typologies de carrière, mais parmi eux se distingue un groupe d’hommes d’origines provençales et françaises, quelquefois d’origines non illustres. L'étude doit affronter une série de problématiques, dont celle du rapport entre la féodalité et l'administration et celle de l'efficacité du gouvernement angevin. La question de base est, si le corps des officiers frontaliers, qui s’est formé comme un formidable exemple de la mobilité sociale médiévale, ait fini par se consolider et par représenter un milieu stable, un « corps de l’État » vrai et propre.
Funzionario o semplice contabile? Il caso degli expensores castrorum nel regno angioino di Sicilia
Authors: Frisone Domenico Matteo
Published: April 2020

Il caso degli expensores castrorum rappresenta pienamente l’esempio di quelle cariche amministrative periferiche, fondamentali per il corretto sviluppo delle politiche fortificative della dinastia angioina. Sthamer li aveva identificati come semplici tesorieri temporanei, preposti alla riparazione di castelli e domus, senza però chiarirne più approfonditamente né il ruolo né i loro caratteri tecnico-pratici. Questo studio introduttivo intende delineare l’evolversi dei criteri selettivi e l’estrazione sociale dei candidati, nonché la sostanziale volubilità della loro carica. Infine, è oltremodo necessaria una disamina delle funzioni esercitate da queste figure e della loro unicità. Attraverso l’analisi dei documenti preservati, quindi, si mettono in luce incongruenze e particolarità di queste cariche apparentemente marginali, eppure di fatto alla base del lavoro quotidiano nei cantieri angioini.
Le tombeau de la famille de Baux à l’Abbaye de Silvacane. Un art funéraire à l’instar des tombeaux comtaux d’Aix-en-Provence sous Charles Ier d’Anjou
Authors: Hartmann-Virnich Andreas , Bonetti Marie-Pierre , Hansen Heike , Molina Nathalie
Published: April 2020

En 2013, une mission archéologique conduite par les co-auteurs, confiée au Laboratoire d’Archéologie Médiévale et Moderne en Méditerranée (LA3M UMR 7298 Université d’Aix-Marseille/CNRS) et à l’Inrap (Institut national de recherches archéologiques préventives), eut pour objet la réalisation d’une première campagne d’étude du mobilier lapidaire ex situ de l’abbaye cistercienne de Silvacane dans la basse vallée de la Durance. Le classement des éléments architecturaux en tout genre, mal identifiés, très partiellement inventoriés et inégalement préservés, déposés à l’intérieur comme à l’extérieur du monument, a permis de rassembler, d’identifier et de resituer dans leur contexte architectural des fragments appartenant à un tombeau monumental gothique de la famille des Baux, bienfaiteurs de l’abbaye à l’époque de sa fondation. Or, la conception, l’ordonnance, le style, la modénature et le décor sculpté du prestigieux monument funéraire étaient étroitement apparentés à ceux du tombeau d’Alphonse II, comte de Provence, à l’église Saint-Jean-de-Malte d’Aix, commandé par Charles Ier d’Anjou dans les années 1270, détruit à la Révolution mais connu par une gravure publiée au début du XIXe siècle par Aubin-Louis Millin d’après un dessin de la fin du XVIIIe siècle. L’analogie étroite qui lie les deux monuments, et qui pourrait relever de l’intervention d’une même équipe de sculpteurs qu’il est toutefois impossible de prouver, pose la question du commanditaire du monument, posthume sans doute à l’instar du tombeau aixois, et de sa relation avec la famille comtale. En outre, un examen minutieux des murs de la nef de l’église a mis en évidence des traits d’épure gravés dans le parement, dont le tracé s’accorde à la géométrie du remplage du baldaquin couronnant le gisant, ainsi que du remplage des baies du réfectoire de l’abbaye, dont l’architecture appartient à la même époque précoce du gothique méridional que l’église des Hospitaliers d’Aix : un indice des pratiques de chantier de l’équipe qui pose la question de l’emplacement du tombeau à l’intérieur de l’église abbatiale et qui associe la réalisation du monument à l’achèvement du réfectoire. Ces éléments entrent manifestement dans une stratégie dynastique de la famille de Baux nouvellement liée aux comtes angevins.
Ordonner et inclure. L’héraldique au service de l’unité des officiers angevins
Authors: Hablot Laurent
Published: April 2020

Parmi les nombreuses fonctions remplies par l’héraldique au Moyen Âge, la pratique des partages d’armoiries reste encore mal connue. Elle a pourtant offert aux princes angevins issus des différentes maisons qui se sont succédées à la tête du royaume de Naples, un utile moyen, à travers toute l’étendue de leurs possessions, pour désigner, distinguer et honorer certains de leurs fidèles en les autorisant de façon tacite ou patente à exposer publiquement et sous diverses formes les signes héraldiques du prince.
Les orientations religieuses de Benoît Himfi († 1380/1381). Un tropisme mendiant de bon aloi ?
Authors: Cevins Marie-Madeleine de
Published: April 2020

Benoît Himfi, chevalier de cour puis comte-ispan et enfin ban de Bulgarie resté pendant quatre décennies au service du roi de Hongrie Louis Ier, a exprimé de multiples façons son soutien aux ordres mendiants au cours de son existence. Plus que la logique d’imitatio regis qui aurait caractérisé le milieu des officiers angevins, il semble avoir traduit ainsi en actes sa volonté d’enraciner topographiquement son lignage ainsi que son attachement aux saints de la dynastie arpadienne.
Y a-t-il un état en Lorraine ? Le cas du règne de René Ier (1430-1480)
Authors: Dauphant Léonard
Published: April 2020

Situés entre le royaume et l’Empire, les duchés de Bar et de Lorraine sont partagés entre des cultures et des modèles politiques divergents, français et germanique. Sous René d’Anjou (1430-1480), les officiers angevins voulaient-ils construire en Lorraine un état « moderne » sur le modèle capétien ? Ou bien respectaient-ils les traditions des « libertés de l’Empire » ? Pour comprendre cette culture politique particulière, il faut examiner deux dimensions du pouvoir capétien et sa réalité en Lorraine : l’idée de souveraineté et la pratique du territoire. Il en ressort que, sous René d’Anjou, l’acculturation française est une réalité mais qu’elle ne doit pas être surinterprétée. Les crises, notamment les guerres de Bourgogne, montrent que la construction de l’état s’est heurtée à de graves difficultés et que ses réussites n’ont pas remis pas en cause le cadre politique général, qui tire son identité de sa position de frontière.
Modélisation de données pour une base de données prosopographique
Authors: Miquel Maryvonne , Pécout Thierry , Tchounikine Anne
Published: April 2020

Prosopange est une application collaborative pour l’alimentation et l’exploitation d’une base de données prosopographique centrée sur les officiers angevins du XIIIe siècle à la fin du XVe siècle. Elle est issue d’une collaboration entre historiens et informaticiens. Cette application est composée d’une base de données prosopographique, d’une application Web pour la saisie et la restitution des données sous forme de pages prosopographiques composées de données consolidées, enrichies, structurées et formatées, ainsi qu’une application d’analyse permettant de créer et d’explorer des populations multicritères d’officiers. Dans cet article, nous présentons le modèle de base de données prosopographiques qui est au cœur de l'application. Les données incluent tous les informations biographiques des officiers et de leurs entourages, issues de sources archivistiques et iconographiques. Ces données portent sur : (i) les informations relatives aux individus (lieu d’origine, sexe, lieu de résidence, religion, dates, etc.) ; (ii) les informations relatives aux fonctions exercées par des individus (type de charge, lieux d’affectation, lieux d’attestation, dates d’exercice, etc.) ; (iii) les informations liées aux titres des individus (honorifiques, diplômes universitaires, dates de délivrance) ; (iv) et enfin des informations relatives aux relations interpersonnelles qui relient un officier à d’autres
Les diplomates de Louis le Grand. Quelques remarques sur les pratiques de l’écrit en Hongrie angevine
Authors: Csákó Judit
Published: April 2020

L’article s’attache, en mettant l’accent sur l’époque des campagnes italiennes, à donner un aperçu sur le cercle de l’élite politique hongroise jouant un rôle diplomatique sous le règne de Louis Ier (dit le Grand) : le sujet permet d’aborder quelques questions liées à la culture politique de la Hongrie angevine. Un examen du « corps diplomatique » montre que les ambassadeurs dépêchés auprès du Saint-Siège, dans les cités italiennes ou en Angleterre appartiennent à un milieu culturel commun : celle de la cour royale. En dépit de l’importance accordée par Louis Ier à l’éducation de ses émissaires ecclésiatiques, les lettres du souverain – témoignages a priori de sa diplomatie – attestent plutôt la puissance d’un monarque prêt à défendre ses intérêts par la force militaire que la haute culture juridique des ses prélats.
Mobile Technology Diffusion in a Developing Economy
Authors: Lamptey Harriet Koshie
Published: April 2020

This study is on the rising patronage of mobile data in a developing economy and changes that have ensued from its adoption by a higher education institution. Studies on the growing use of mobiles in higher education exist. This qualitative inquiry advances research on developing economies by providing evidence of transformational effects on a single case. Study participants were administrators who led the adoption process. Primary data was gathered from interviews while local and international reports delivered secondary facts on rising mobile data patronage. Findings indicate that mobile data patronage is influencing its pedagogical use. Adoption has resulted in institutional changes in the form of emerged roles and arrangements. If undisrupted by technological innovations or communal group behavior, the arrangements may gain legitimacy with time. From an institutional theory perspective, mobile technology appears to be playing an agential role on the landscape of the institution. The study cautions institutions to focus on pedagogical aims in their adoption of technology.
Information Systems Curriculum Research
Authors: Mark-Oliver Kevor
Published: April 2020

While information system (IS) curriculum research has enjoyed recent attention from IS scholars, not many reviews exist. Those reviews are either outdated or focused on a particular strand of IS curriculum research which may not be comprehensive. In this chapter, the author presents a systematic review of information systems curriculum research published in information systems journals and selected conference proceedings in the past decade. The results point to many studies on identifying information systems competencies and their implications for curriculum design and delivery. Having observed that many of these issues are discussed at the undergraduate level and predominantly in the USA and UK, this chapter suggests, among others, future research at the graduate level and from other regions.
Business Continuity of Critical Infrastructures for Safety and Security Incidents
Authors: Apostolou Konstantinos , Kazantzidou-Firtinidou Danai , Gkotsis Ilias , Eftychidis George
Published: April 2020

The chapter is an overview of important timely concepts with a focus on the safety and security of critical infrastructures (CIs). The content is a result of triangulation of sources from the fields of academia, best practices, legislation, and scientific research. The protection of CIs has been a popular topic of discussion through recent years but also a topic for initiative towards the undisrupted function, prosperity and well-being of nations in a world of interconnections and dependencies. In respect to that, the following content offers input which will assist in the understanding of the concepts surrounding the safety and security of CIs while combining theoretical approaches with practical guidelines for the composition of a business continuity plan. The chapter also discusses the factors contributing to the criticality of technical infrastructures as part of a nation or a cross-border network, the threats to which a CI can be exposed to whether these are natural or man-made.
Evaluation of Bayesian Network Structure Learning Using Elephant Swarm Water Search Algorithm
Authors: Kareem Shahab Wahhab , Okur Mehmet Cudi
Published: April 2020

Bayesian networks are useful analytical models for designing the structure of knowledge in machine learning which can represent probabilistic dependency relationships among the variables. The authors present the Elephant Swarm Water Search Algorithm (ESWSA) for Bayesian network structure learning. In the algorithm; Deleting, Reversing, Inserting, and Moving are used to make the ESWSA for reaching the optimal structure solution. Mainly, water search strategy of elephants during drought periods is used in the ESWSA algorithm. The proposed method is compared with Pigeon Inspired Optimization, Simulated Annealing, Greedy Search, Hybrid Bee with Simulated Annealing, and Hybrid Bee with Greedy Search using BDeu score function as a metric for all algorithms. They investigated the confusion matrix performances of these techniques utilizing various benchmark data sets. As presented by the results of evaluations, the proposed algorithm achieves better performance than the other algorithms and produces better scores as well as the better values.
Digital Platforms for Enhancing Participatory Design and Urban Regeneration
Authors: De Filippi Francesca , Coscia Cristina , Guido Roberta
Published: April 2020

This chapter explores an innovative approach to open policy-making and citizen-responsive urban planning. It reports on the ongoing project MiraMap carried out by the Politecnico di Torino from 2013. It started creating a crowdmap, engaging both citizens and the Public Administration in a reporting process concerning issues, and resources within the Mirafiori Sud administrative area of Turin (Italy), until it became a digital collaborative platform. It was a real case study geared at evaluating the use of open source technologies. MiraMap has been set up by integrating current administrative management process and involving new actors in the decision-making process. Today, the project is focusing mostly on encouraging forms of co-design and co-production, including gaming components. The chapter seeks to set up a methodological and technological framework, by addressing the complexity of urban planning and integrating the perspectives of citizens through their actual engagement.
A Spatial Analysis of Commuting Patterns of Electric Vehicle Drivers
Authors: Nickkar Amirreza , Shin Hyeon-Shic , Farkas Z. Andrew
Published: April 2020

This article explores the possible socio-demographic characteristics and factors that contribute to electric vehicle (EV) owner commuting patterns and travel behavior. The objective of the study is to inform decision makers of EV policies by identifying these influencing attributes. In total, 1,257 EV owners in Maryland completed usable surveys. Researchers employed a set of statistical analysis methods to analyze the data. They constructed a multinomial logistic regression to examine the associations between EV owner characteristics and their commuting patterns and compared the results to the spatial travel patterns of drivers of internal combustion engine vehicles (ICEV) in Maryland. The results of this study showed that socio-demographic factors including age, education, income, household size, the number of vehicles in the house, and political affiliation played a significant role in the commuting behavior and patterns of EV drivers. Moreover, about 60% of EV commuting trips originated from suburban areas, and 30% of all of EV commutes were suburban to suburban.
Quando transborda o “caldo cultural”: a reação populista contemporânea e a percepção da imigração no Brasil e nos Estados Unidos
Authors: Safarik Bradley
Published: April 2020

O presidente dos EUA, Donald Trump, e o presidente do Brasil, Jair Bolsonaro, usam discurso e política anti-imigração como ferramenta política para atrair e fortalecer suas bases eleitorais. Nos dois casos, o discurso da campanha foi transmitida à administração. As implicações dessa estratégia na percepção pública dos imigrantes serão examinadas com base nas teorias de Michel Foucault sobre biopoder e biopolítica e sua mobilização através do discurso político e das políticas públicas. O estudo questiona até que ponto essa agenda política reacionária de uma minoria motivada representa uma tendência duradoura na opinião pública com respeito ao modelo social que estes dois países têm historicamente praticado, particularmente num ambiente socialmente polarizado
Acompanhamento e assessoria pedagógica do Programa Segundo Tempo do Ministério do Esporte
Authors: Pizani Juliana , Barbosa-Rinaldi Ieda Parra , Kravchychyn Claudio , Teixeira Fabiane Castilho , Reppold Filho Alberto Reinaldo , Oliveira Amauri Aparecido Bássoli de
Published: April 2020

Esta pesquisa descritiva documental do tipo descritiva teve por objetivo analisar as recomendações pedagógicas emitidas pelas Equipes Colaboradoras e registradas nos instrumentos de avaliação de visita in loco, com vistas à compreensão da efetividade da estratégia de acompanhamento e assessoria pedagógica adotada pelo Programa Segundo Tempo. Para tanto, foram utilizados, como fonte de dados, 260 instrumentos de avaliação in loco, os quais são elaborados a partir do acompanhamento e assessoria pedagógica das Equipes Colaboradoras junto aos convênios atendidos pelo Programa Segundo Tempo. Para o tratamento dos dados, recorreu-se à estatística descritiva e à técnica de análise de conteúdo. Observou-se que o suporte pedagógico das Equipes Colaboradoras é uma ação em pontencial para a organização do trabalho nos convênios para atendimento das diretrizes pedagógicas do programa, indicando a relevância dessa estratégia para a qualificação do atendimento ofertado nos núcleos de esporte educacional. A modo de conclusão, entende-se que a estratégia adotada pelo programa de acompanhar e assessorar o trabalho pedagógico se coloca como ação indispensável para a qualificação da proposta pedagógica do Programa Segundo Tempo.
A Study on Experimental on Bending-Shear Behavior of Concrete-Filled Double Skin Steel Tubular Beams
Authors: Jo Lee Seung
Published: April 2020

This study examined the effects of the inside-outside diameter ratio (Di/D0), concrete strength, and inside-outside reinforcement type of steel tube on the structural behavior of concrete-filled double-skin steel tubular (CFDT) beams. Towards this end, the failure type, load-deflection relationship, ultimate strength, and displacement ductility were compared and analyzed. The results showed that the maximum load-deflection and failure type are affected by the Di/D0 and the reinforcement method. Furthermore, the higher the Di/D0 was, the lower the restraint stress and maximum load became.
Design of a Thin Metal Product with the Developable Middle Surface from a Sheet by Parabolic Bending
Authors: Krivoshapko Sergey Nikolayevich , Rynkovskaya Marina , Razin Andrey
Published: April 2020

In the paper, the method to calculate the bending moments arising due to the process of parabolic bending of a thin metal sheet into a torso shell is offered. The problem is solved with the help of methods of differential geometry and shell theory. The possibility of manufacturing any torso product without creases and tears from a thin sheet made of plastic materials is theoretically proved. A review of experimental and theoretical works on pure bending is given. In contradistinction to the mathematical approach to bending a thin sheet into a torso shell (where the thickness of a sheet is assumed to be zero), this paper considers a technical approach taking into account the sheet thickness. It is shown that the normal stresses occurring in a thin sheet as a result of the bending can reach the yield point. On the contrary mathematical possibility to bend a sheet into a torso product, and then unbend it back into a flat position, it is shown in the paper that under certain conditions a sheet cannot be bent back to a flat sheet again due to the occurrence of plastic strains. The results of the research can be used in marine design, civil engineering, air-space industry, and other manufacturing processes.
A rare case of acute alcohol intoxication mimicking an electrocardiographic pattern for acute coronary syndrome with ST-segment elevation
Authors: Lai Franco , Pelagatti Lorenzo , Pagnini Chiara , Baldini Alessio , Versari Daniele , Magazzini Simone
Published: April 2020

A patient presenting an ST-segment elevation could represent a life-threatening condition in Emergency Department (ED). This case shows how sometimes, a chronic, and more often, an acute abuse of alcohol is related to important harmful effects on myocardial contractility. The authors present a case of a 19-year-old male of oriental-Asiatic origin admitted unconscious to ED with alcoholic fetor: on electrocardiogram a significant and widespread STsegment elevation was observed. A bedside echocardiography showed no abnormalities in segmental kinetics; therefore electrocardiogram- alterations could be related to a coronary spasm. The literature is poor about this effect induced by acute alcohol ingestion: the pathophysiological mechanism at the base of the abnormal muscle contractility, seems to be related to an impairment in cyclic guanosine monophosphate production, although a second and less probable hypothesis could be an altered intracellular concentration of calcium levels.
STUDY OF TEMPERATURE PROFILE ON VARIOUS LAND USE AND LAND COVER FOR EMERGING HEAT ISLAND
Authors: Franco Sainu , Mandla Venkata Ravibabu , Rao K. Ram Mohan , M Pramod Kumar , P.C. Anand
Published: April 2020

Greater Hyderabad a twin city in earlier days, has grown into a tricity of Cyberabad - Hyderabad – Secunderabad. This concentrated development with impetus on industrialization has led to unprecedented urbanization and sprawl, resulting in heavy population growth and ultimately raising serious challenges such as traffic congestion, enhanced Green House Gas (GHG) emissions causing climatic changes apart from over-use of basic amenities and infrastructure. This study shows that urban areas have grown from a mere 172 sq km of MCH (Municipal Corporation of Hyderabad) in the 1970’s to a whopping 1905 sq km at present, currently known as the Greater Hyderabad Metropolitan Corporation. The phenomenon of Urban Heat Island (UHI) can be observed in several localities. The pattern of growth of Greater Hyderabad and its repercussions on the local climate are studied with the help of geospatial technologies. An increase of ~20C to 2.50C is observed over the last 2 decades. The Vegetation and water bodies also show a sharp decline.
Safety and efficacy of a direct aspiration first-pass technique with large-bore catheters for acute ischemic stroke in vietnam: Experience of a single center
Authors: Luu Vu , Kien Le , Tuan Tran , Anh Nguyen , Thien Nguyen , Trang Nguyen , Phuong Dao , Ton Mai , Thong Pham , Cong Le , Trieu Vu , Manh Nguyen , Cuong Tran
Published: April 2020

Purpose: The purpose of this study was to evaluate the safety and efficacy of mechanical thrombectomy with a direct aspiration first-pass technique (ADAPT) using large-bore catheters in patients with acute ischemic stroke due to large vessel occlusion (LVO) in a hospital in Vietnam. Methods: This was a retrospective review of patients with acute ischemic stroke due to LVO who were diagnosed and underwent mechanical thrombectomy using ADAPT with large-bore catheters at Bach Mai Hospital from January 2017 to June 2018. Results: Seventy-three patients (47.9% female; age: 61.29 ± 14.49 years) met study criteria. The average procedure duration was 45.09 ± 38.26 min. Successful recanalization post-ADAPT (thrombolysis in cerebral infarction 2b-3) was achieved in 72.6% (53/73) of patients. Good functional outcome (Modified Rankin Scale 0–2) at 3 months was achieved in 50.7% (37/73), with poor functional outcome in 24.7% (18/73). The 90-day mortality rate was 24.7% (18/73). The hemorrhagic transformation rate was 31.6%, in which 19.2% were symptomatic. Vessel perforation occurred in 5.5% (4/73) of patients but in all cases was associated with the guidewire and not the reperfusion catheter. Vessel dissection occurred in 1.4% (1/73) and vasospasm in 5.5% (4/73) of patients. Conclusion: Mechanical thrombectomy using ADAPT with large-bore catheters for acute ischemic stroke due to LVO is a method that yielded good results in recanalization and clinical recovery in a Vietnamese patient population.
Two-staged approach for giant hypervascular meningioma resection
Authors: Ansari Ahmed , Riyaz Sadaf
Published: April 2020

Introduction: Giant meningiomas represent very uncommon and challenging tumors. Surgical morbidity is high due to the difficult and complex approaches to devascularize these hypervascular lesions. In the present series, we demonstrate a two-staged approach for surgical resection of giant hypervascular meningiomas. Patients and Methods: Four such patients having giant hypervascular meningiomas between July 2017 and June 2019 were taken in the present study. There were two falco-tentorial, one anterior and middle parasagittal and falcine meningioma, and one sphenoid wing with convexity meningioma. Results: In the first stage, only the hypervascular bone was removed, and the dura was coagulated and excised. In the definitive stage, usually undertaken 5–8 days following the first surgery, the meningioma was excised, leading to Simpson's Grade 2 excision in two and Grade 3 excision in the remaining two patients. There was one mortality of a previously operated malignant meningioma (histopathologically proven), owing to a cardiac event in the patient, while the other three were discharged without any new neurologic deficit. Conclusion: Two-staged approach for giant meningiomas represents a safe and effective surgical management, tolerable for the patient and more comfortable for the neurosurgeon.
Derivation of a heteroepitaxial thin-film model
Authors: Davoli Elisa , Piovano Paolo
Published: April 2020

A variational model for epitaxially-strained thin films on rigid substrates is derived both by

\Gamma

-convergence from a transition-layer setting, and by relaxation from a sharp-interface description available in the literature for regular configurations. The model is characterized by a configurational energy that accounts for both the competing mechanisms responsible for the film shape. On the one hand, the lattice mismatch between the film and the substrate generate large stresses, and corrugations may be present because film atoms move to release the elastic energy. On the other hand, flatter profiles may be preferable to minimize the surface energy. Some first regularity results are presented for energetically-optimal film profiles.
Automated Driving System Safety: Miles for 95% Confidence in “Vision Zero”
Authors: Young Richard Allen
Published: April 2020

Engineering reliability models from RAND, MobilEye, and Volvo concluded that billions of miles of on-road data were required to validate that the real-world fatality rate of an “Automated Driving System-equipped vehicle” (AV) fleet for an improvement over human-driven conventional vehicles (CV). RAND said 5 billion miles for 20%, MobileEye 30 billion for 99.9%, and Volvo 5 billion for 50% improvement. All these models used the Gaussian distribution, which is inaccurate for low crash numbers. The current study proposes a new epidemiologic method and criterion to validate real-world AV data with 95% confidence for zero to ten fatal crashes. The upper confidence limit (UL) of the AV fatal crash rate has to be lower than the CV fatal crash rate with 95% confidence. That criterion is met if the UL of the AV fatal crash incidence rate ratio estimate is below one. That UL was estimated using the mid-P exact method for calculating confidence limits for a dual Poisson process, using a one-tailed 95% confidence level. The required AV mileage was adjusted by trial and error until the UL was just below 1. The method was applied to the real-world fatal crash and mileage data from California (Waymo and GM Cruise), U.S. (Uber and Tesla), China (Tesla), and Sweden (Volvo) to calculate the AV miles required to validate a “Vision Zero” AV fatal crash objective with 95% confidence. For AV fleets in California, U.S., and China, the AV miles required are only in the millions. In Sweden, 1.9 billion AV miles are required because its CV fatal crash rates are already so low. In conclusion, epidemiologic analysis of real-world data finds that only millions of real-world AV data are typically required to validate AV safety with 95% confidence to a “Vision Zero” fatal crash criterion.