Coherent and incoherent bands in La and Rh doped Sr3Ir2O7

In Sr2IrO4 and Sr3Ir2O7, correlations, magnetism and spin-orbit coupling compete on similar energy scales, creating a new context to study metal-insulator transitions (MIT). We use here Angle-Resolved photoemission to investigate the MIT as a function of hole and electron doping in Sr3Ir2O7, obtained respectively by Ir/Rh and Sr/La substitutions. We show that there is a clear reduction as a function of doping of the gap between a lower and upper band on both sides of the Fermi level, from 0.2eV to 0.05eV. Although these two bands have a counterpart in band structure calculations, they are characterized by a very different degree of coherence. The upper band exhibits clear quasiparticle peaks, while the lower band is very broad and loses weight as a function of doping. Moreover, their ARPES spectral weights obey different periodicities, reinforcing the idea of their different nature. We argue that a very similar situation occurs in Sr2IrO4 and conclude that the physics of the two families is essentially the same

Interfacial treatment effects on behavior of soft nano-composites for highly stretchable dielectrics

We investigate the influence of interfacial treatment on the matrix–filler interaction using a melt mixing process to fabricate robust and highly stretchable dielectrics. Silicone oil and silane coupling agent are studied as possible solutions to enhance the compatibility between the inorganic fillers and polymer matrix. Morphology, thermomechanical and dielectric behavior of the prepared specimens are studied. Results show that specimens filled with silicone oil coated particles have promising dielectric and thermal properties. The mechanical properties reveal a stiffness enhancement by 67% with a high strain at break of 900%. The relative permittivity of the specimens prepared with silicone oil increased by 45% as observed from the dielectric analysis

Motivational Factors in the Indonesian Efl Writing Classroom

Despite the essence of motivation as one of primary determinants for students\u27 learning achievement, issues of factors influencing students\u27 motivation in learning a particular subject, particularly English as a Foreign Language (EFL) writing with regard to Indonesian university students, have not been discussed sufficiently. The study reported in this paper aims to explore motivational factors perceived by Indonesian university students in their EFL writing classroom. The participants of the study were 19 freshmen at Creative Writing Class F within the English Language Education Study Program, Faculty of Language and Literature, Satya Wacana Christian University (ED-SWCU), academic year 2014/2015. Data was collected through reflective journals in which the participants wrote their reflections dealing with the issues. The data analysis appeared to prove that positive teacher\u27s performance, inspiring classmates, motivational parents, and positive classroom atmosphere were primary factors influencing the students\u27 learning motivation in their classroom. Finally, the present study would seem to indicate the importance of constructive collaboration among teachers, students, and parents in determining the students\u27 learning motivation and academic achievement in their EFL writing classroom

More than a Family Resemblance? Agnes Crane's "A Victorious Defeat" and Stephen Crane's The Third Violet1

Analyzes Stephen Crane's The Third Violet in the context of his sister Agnes Crane's vacation story "A Victorious Retreat.

“Have you read my ‘Christ’ story?”: Mary Austin’s The Man Jesus and London’s The Star Rover

Analyzes Jack London's The Star Rover and Mary Austin's The Man Jesus in light of their correspondence

Étude rétrospective de la qualité de la chirurgie oncologique pédiatrique dans un centre académique suisse

Introduction : Il essentiel pour les patients, mais aussi pour l'utilisation appropriée des ressources médicales et financières, que les centres pédiatriques oncologiques de moindre envergure répondent de manière adéquate aux normes de soins et atteignent des résultats comparables à ceux des grands centres. Étant donné que l'impact économique des soins de santé est devenu un important modulateur des décisions politiques, il est urgent que les institutions abordent le sujet de la qualité en chirurgie pédiatrique oncologique, et fournissent des éléments pour appuyer ou modifier les lignes directrices existantes Patients et méthode : Par cette étude monocentrique rétrospective de 13 ans, nous avons analysé la qualité de la chirurgie pédiatrique de tumeurs abdominales ou thoraciques du Département Médico-Chirurgical du CHUV pratiquée sur 48 enfants. Afin d'y parvenir, nous avons choisi et analysé deux indicateurs de la qualité de ces soins. Le premier est la conformité de la pratique de ce service, avec les directives des protocoles de traitements internationaux. Le second paramètre étudié est la mesure du taux d'événements indésirables liés à la chirurgie du cancer observés dans notre population de patients. Résultats : La conformité avec les protocoles de traitement est très élevée avec un taux de 96%. L'incidence des événements indésirables liés à la chirurgie est de 34 patients sur 48 (66%). Les complications graves sont rares, avec 85% ne nécessitant pas plus qu'un traitement médical simple. Aucune mortalité chirurgicale n'a été identifiée. Conclusion : Nos données suggèrent que la planification méticuleuse de la chirurgie et l'exécution de celle-ci par des chirurgiens dédiés à l'oncologie pédiatrique, ainsi qu'une étroite collaboration avec des oncologues pédiatres sont des conditions essentielles à la qualité des soins apportés à ces patients. Dans ces conditions, même un centre d'oncologie pédiatrique de moindre envergure peut répondre aux normes établies par les grands centres internationaux

Earliest Mexican Turkeys (Meleagris gallopavo) in the Maya Region: Implications for Pre-Hispanic Animal Trade and the Timing of Turkey Domestication

Late Preclassic (300 BC–AD 100) turkey remains identified at the archaeological site of El Mirador (Petén, Guatemala) represent the earliest evidence of the Mexican turkey (Meleagris gallopavo) in the ancient Maya world. Archaeological, zooarchaeological, and ancient DNA evidence combine to confirm the identification and context. The natural pre-Hispanic range of the Mexican turkey does not extend south of central Mexico, making the species non-local to the Maya area where another species, the ocellated turkey (Meleagris ocellata), is indigenous. Prior to this discovery, the earliest evidence of M. gallopavo in the Maya area dated to approximately one thousand years later. The El Mirador specimens therefore represent previously unrecorded Preclassic exchange of animals from northern Mesoamerica to the Maya cultural region. As the earliest evidence of M. gallopavo found outside its natural geographic range, the El Mirador turkeys also represent the earliest indirect evidence for Mesoamerican turkey rearing or domestication. The presence of male, female and sub-adult turkeys, and reduced flight morphology further suggests that the El Mirador turkeys were raised in captivity. This supports an argument for the origins of turkey husbandry or at least captive rearing in the Preclassic

A Forgotten Daughter of Bohemia: Gertrude Christian Fosdick’s Out of Bohemia and the Artists’ Novel of the 1890s

This article provides a biographical sketch of Gertrude Christian Fosdick and analyzes her little-known novel of a female artist, Out of Bohemia (1894), in the context of Henry James's The Portrait of a Lady and Hawthorne's The Marble Faun

Comparative genomics reveals multiple pathways to mutualism for tick-borne pathogens

Accelerated pipeline for DNA and amino acid sequences clustering

Edith Wharton's "Book of the Grotesque": Sherwood Anderson, Modernism, and the Late Stories

Discusses Edith Wharton's "The Looking Glass" and "The Day of the Funeral" in relation to macabre humor and Anderson's theory of the grotesque