The origin, development, and legacy of the enigmatic Etruscan civilization from the central region of the Italian peninsula known as Etruria have been debated for centuries. Here we report a genomic ...time transect of 82 individuals spanning almost two millennia (800 BCE to 1000 CE) across Etruria and southern Italy. During the Iron Age, we detect a component of Indo-European–associated steppe ancestry and the lack of recent Anatolian-related admixture among the putative non–Indo-European–speaking Etruscans. Despite comprising diverse individuals of central European, northern African, and Near Eastern ancestry, the local gene pool is largely maintained across the first millennium BCE. This drastically changes during the Roman Imperial period where we report an abrupt population-wide shift to ~50% admixture with eastern Mediterranean ancestry. Last, we identify northern European components appearing in central Italy during the Early Middle Ages, which thus formed the genetic landscape of present-day Italian populations.
“Islam, Merchants, and Capitalism” draws attention to the missing link between early and central medieval Islamic socioeconomic history (ca. 650–1250) and the history of capitalism. This intertext ...essay starts from reassessing the work of French Marxist Islamicist Maxime Rodinson, who first made a programmatic attempt to forge such a link in his seminal 1966 Islam and Capitalism . It then proceeds to lay bare the reasons why Rodinson’s call went largely unheard in the following decades, identifying the persistence of a pervasive decline paradigm within medieval Islamic socioeconomic history as the key obstacle preventing advances in the field and foreclosing avenues for theoretical discussion. Regrettably this paradigm, while outdated and no longer tenable, still remains authoritative and is frequently invoked by modern theorists of “underdevelopment.” The essay then discusses some examples of recent groundbreaking scholarship that deploy new archaeological and documentary sources to decidedly move away from decline, showing the way forward out of this historiographical impasse. Finally, the essay returns to the question of capitalism, and of the forms in which this ambiguous term can, or cannot, be applied to early and central medieval Islamic societies, calling for a recentering of the Islamic Middle Ages in a longue-durée global history of capitalism.
From Constantinople to the Frontier: The City and the Cities provides twenty-five articles addressing the concept of centres and peripheries in the late antique and Byzantine worlds, focusing ...specifically on urban aspects of this paradigm. Spanning from the fourth to thirteenth centuries, and ranging from the later Roman empires to the early Caliphate and medieval New Rome, the chapters reveal the range of factors involved in the dialectic between City, cities, and frontier.Including contributions on political, social, literary, and artistic history, and covering geographical areas throughout the central and eastern Mediterranean, this volume provides a kaleidoscopic view of how human actions and relationships worked with, within, and between urban spaces and the periphery, and how these spaces and relationships were themselves ideologically constructed and understood.Contributors are Walter F. Beers, Lorenzo M. Bondioli, Christopher Bonura, Lynton Boshoff, Averil Cameron, Jeremiah Coogan, Robson Della Torre, Pavla Drapelova, Nicholas Evans, David Gyllenhaal, Franka Horvat, Theofili Kampianaki, Maximilian Lau, Valeria Flavia Lovato, Byron MacDougall, Nicholas S.M. Matheou, Daniel Neary, Jonas Nilsson, Cecilia Palombo, Maria Alessia Rossi, Roman Shliakhtin, Sarah C. Simmons, Andrew M. Small, Jakub Sypianski, Vincent Tremblay and Philipp Winterhager.
Resumo A aplicação de intervenções educacionais inclusivas por agentes educacionais em estudantes da educação especial deveria ser sistematicamente avaliada, para garantir replicação futura dos ...procedimentos e resultados, a partir do uso de um delineamento experimental adequado à proposta. O objetivo foi analisar como pesquisas aplicadas podem contribuir no arranjo de intervenções educacionais inclusivas mais sistemáticas, a partir do uso de delineamentos experimentais em Análise do Comportamento; discutir a tomada de decisão para a escolha de um delineamento e o impacto dessa escolha nos dados coletados e no conhecimento que se deseja produzir, especialmente a partir do envolvimento dos diferentes agentes educacionais na aplicação de intervenções pedagógicas com estudantes com DI ou TEA. Discute-se a garantia de um delineamento que avalie os resultados das intervenções aplicadas por agentes e a dificuldade de identificar um delineamento que assegure com precisão científica o impacto de cada intervenção aplicada por cada um deles.
Resumen La aplicación de intervenciones educativas inclusivas por agentes educativos a los estudiantes de la educación especial debería ser sistemáticamente evaluada para garantizar la futura replicación de los procedimientos y resultados a partir del uso de un diseño experimental adecuado a la propuesta. El objetivo del texto fue analizar cómo las investigaciones aplicadas pueden contribuir a la disposición de intervenciones educativas inclusivas más sistemáticas, a partir del uso de diseños experimentales en el Análisis de la Conducta; así como discutir la toma de decisiones para seleccionar un diseño y el impacto de esa elección en los datos recolectados y en el conocimiento que se desea producir, especialmente desde la participación de los diferentes agentes educativos en la aplicación de intervenciones pedagógicas con estudiantes con DI o TEA. Se discute la garantía de un diseño que evalúe los resultados de las intervenciones aplicadas por agentes y la dificultad de identificar un diseño que garantice con precisión científica el impacto de cada intervención aplicada por cada uno de ellos.
Résumé L’application d’interventions éducatives inclusives par des agents de l’éducation à des étudiants de l’éducation specialisée devrait être systématiquement évaluée afin de garantir la reproduction à l’avenir des procédures et des résultats de l’utilisation d’un plan expérimental approprié. L’objectif était d’analyser en quoi la recherche appliquée pouvait contribuer à le arrangement d’interventions éducatives inclusives plus systématiques, fondées sur l’utilisation de modèles expérimentaux dans l’analyse comportementale; discuter de la prise de décision pour le choix d’un design et de l’impact de ce choix sur les données collectées et les connaissances à produire, en particulier grâce à la participation des différents agents de l’éducation à la mise en œuvre d’interventions pédagogiques auprès d’élèves présentant un IDD ou un TSA. Il traite de la garantie d’un plan qui évalue les résultats des interventions appliquées par les agents et de la difficulté d’identifier un plan qui assure avec une précision scientifique l’impact de chaque intervention appliquée.
Abstract The application of inclusive educational interventions by educational agents to special education students should be systematically evaluated to ensure future replication of procedures and results from the use of an adequate experimental design. The aim was to analyze how applied researches can contribute to the arrangement of more systematic inclusive educational interventions, based on the use of experimental designs in Behavior Analysis; to discuss decision making for choosing a design and the impact of this choice on the data collected and on the knowledge to be produced, especially from the involvement of different educational agents in the application of pedagogical interventions with students with ID or ASD. It discusses the guarantee of a design that evaluates the results of interventions applied by agents and the difficulty to identify a design that assures with scientific precision the impact of each intervention applied.
In this work, SiC ceramics were liquid phase sintered (LPS), using AlN–Y
2O
3 as additives, and oxidized at 1400
°C in air for up to 120
h. Oxidation was monitored by the weight gain of the samples ...as function of exposition time and temperature. A parabolic growth of the oxidation layer has been observed and the coefficient of the growth rate has been determined by relating the weight gain and the surface area. The effect of oxidation on strength has been determined by 4-point bending tests. Phase analysis by X-ray diffraction and microstructural observation by scanning electron microscopy indicated the formation of a uniform and dense oxidation layer. The elimination of surface flaws and pores and the generation of compressive stresses in the surface resulted in a strength increase of the oxidized samples.
n-p-n bipolar phototransistors have been designed and fabricated on high-resistivity silicon substrates. A technology featuring a double implant for the emitter allowed us to obtain a typical current ...gain of about 600. The device has been tested with /spl alpha/ particles from a /sup 239/Pu source, /spl beta/ particles from /sup 90/Sr, and X-rays from /sup 241/Am using a simple experimental setup, where the detector is directly connected to the oscilloscope. In the case of electrons, pulse heights of 100 mV have been observed, with pulse length of 50 /spl mu/s, measured on a load resistor in series to the emitter. The parameters driving the time performance have been measured, obtaining a good agreement with the electrical model of the device. We report on the functional characterization of the device, in particular the time response, the energy calibration, and the electronic noise measurement.
Characterization of BJT-based particle detectors Piemonte, C.; Batignani, G.; Bettarini, S. ...
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment,
12/2004, Letnik:
535, Številka:
1
Journal Article
Recenzirano
We report on the static and dynamic behavior of BJT-based particle detectors realized on high-resistivity silicon. Several prototypes, featuring different doping profiles and geometries, have been ...fabricated at ITC-irst (Trento, Italy). These devices have been thoroughly characterized from the electrical viewpoint, and, in order to understand the fundamental parameters of the structure, device simulations have been performed, whose results are in very good agreement with experimental data. Preliminary functional measurements have been carried out by using a
109
Cd source excitation.
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