25 research outputs found

    Historical archaeology at frontier and rural spaces in pampa and patagonia regions: trajectories, advances and challenges

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    En este artículo se presentan las principales líneas de trabajo y actividades desarrolladas por este grupo de investigaciones recientemente conformado que nuclea a investigadores de distintas disciplinas e instituciones. El eje común de todos los proyectos se centra en abordar el proceso de avance y construcción de las fronteras del Imperio Español (en el período colonial) y del Estado (etapa post-independentista) en interacción con las sociedades indígenas en la región pampeana norpatagónica hasta la conquista militar de fines del siglo XIX. A través de identificar e interpretar los distintos mecanismos materiales, institu-cionales y simbólicos desplegados por la Corona, el Estado y parte de la población eurocriolla, buscamos comprender las transformaciones espaciales y paisajísticas del territorio que conformó dicho espacio fronterizo y rural. El conjunto de proyectos se caracteriza por presentar novedosas técnicas de detección de sitios y líneas analíticas en el estudio de la cultura material. Asimismo, hemos desarrollado diversas actividades de divulgación científica y de extensión hacia y con las comunidades a distintas escalas -lo-cales, regionales, nacionales e internacionales-. Entre éstas destacamos charlas, talleres, elaboración de material educativo y acompañamiento a las comunidades involucradas en las áreas de trabajo así como acciones en conjunto referidas al cuidado del patrimonio arqueológico. Desde la arqueología histórica, con la integración crítica de distintos tipos de registros, buscamos realizar aportes al conocimiento arqueológico e histórico, local y regional, sobre el complejo y vigente tema de las fronteras.This article presents the main lines of research and activities developed by a newly formed team that brings researchers from different disciplines and institutions together. All the projects have in common the focus on the process of expansion and construction of the frontiers of the Spanish Empire (in the Colonial period) and the State (post-independence stage) in interaction with the indigenous societies of the Pampean-North Patagonian region until the military conquest of the late nineteenth century. Through the identification and interpretation of different materials, institutional and symbolic mechanisms deployed by the Crown, the State and part of the Euro Creole population, we seek to understand the landscape transformations of border and rural territories. For the development of these projects, innovative site detection techniques and analytical lines are used in the study of material culture. Likewise, we made various scientific divulgation activities for and with communities at different scales -local, regional, national and international-. Among those, we would like to highlight conferences, workshops, educational material and accompaniment to the communities of the studied areas as well as conjoined actions related to the preservation of the archaeological heritage. Through historical archeology and the critical integra-tion of different types of records, we seek to contribute to archaeological and historical knowledge -local and regional- on the current and complex frontier issue.Fil: Pedrotta, Victoria. Concejo Nacional de Investigaciones Científicas y Técnicas. Centro de Ciencias Naturales Ambientales y Antropológicas. Fundación de Historia Natural Félix de Azara. Universidad Maimónides. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo; Argentina.Fil: Bagaloni, Vanesa. Concejo Nacional de Investigaciones Científicas y Técnicas. Centro de Ciencias Naturales Ambientales y Antropológicas. Fundación de Historia Natural Félix de Azara. Universidad Maimónides. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo; Argentina.Fil: Pollard, Bruno A. Universidad Maimónides. Centro de Ciencias Naturales Ambientales y Antropológicas. Fundación de Historia Natural Félix de Azara; Argentina.Fil: Bracco, Irene C. Universidad Maimónides. Centro de Ciencias Naturales Ambientales y Antropológicas. Fundación de Historia Natural Félix de Azara; Argentina.Fil: Tormo Izaguirre, Juan R. Universidad Maimónides. Centro de Ciencias Naturales Ambientales y Antropológicas. Fundación de Historia Natural Félix de Azara; Argentina.Fil: Tomassini, Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad Nacional del Sur. Departamento de Humanidades; Argentina.Fil: Eliges, Adolfo C. Consejo Nacional de Investigaciones Científicas y Técnicas. División Arqueología Museo de La Plata; Argentina.Fil: Martí, Verónica S. Universidad Maimónides. Centro de Ciencias Naturales Ambientales y Antropológicas. Fundación de Historia Natural Félix de Azara; Argentina

    Overhaul and Installation of the ICARUS-T600 Liquid Argon TPC Electronics for the FNAL Short Baseline Neutrino Program

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    The ICARUS T600 liquid argon (LAr) time projection chamber (TPC) underwent a major overhaul at CERN in 2016-2017 to prepare for the operation at FNAL in the Short Baseline Neutrino (SBN) program. This included a major upgrade of the photo-multiplier system and of the TPC wire read-out electronics. The full TPC wire read-out electronics together with the new wire biasing and interconnection scheme are described. The design of a new signal feed-through flange is also a fundamental piece of this overhaul whose major feature is the integration of all electronics components onto the signal flange. Initial functionality tests of the full TPC electronics chain installed in the T600 detector at FNAL are also described

    CUORE-0 detector: design, construction and operation

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    The CUORE experiment will search for neutrinoless double-beta decay of130^{130}Te with an array of 988 TeO2_2 bolometers arranged in 19 towers.CUORE-0, the first tower assembled according to the CUORE procedures, was builtand commissioned at Laboratori Nazionali del Gran Sasso, and took data fromMarch 2013 to March 2015. In this paper we describe the design, constructionand operation of the CUORE-0 experiment, with an emphasis on the improvementsmade over a predecessor experiment, Cuoricino. In particular, we demonstratewith CUORE-0 data that the design goals of CUORE are within reach

    CMS physics technical design report : Addendum on high density QCD with heavy ions

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    Olive groves around the lake. A ten-thousand-year history of a Cretan landscape (Greece) reveals the dominant role of humans in making this Mediterranean ecosystem

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    The reconstruction of millennial-scale interactions between ecosystems and societies can provide unique and valuable references for understanding the creation of cultural landscapes and help elucidate their value, weaknesses and legacies. Among the most emblematic forms of Mediterranean land use, olive groves and pastoralism have occupied a prominent place. Therefore, it is vital to know when, how, and with what ecological consequences these practices were established and developed. Located in the southern part of the Aegean Sea, Crete is the largest island of Greece. The island is characterised by a long human history of land use, but our understanding of past environmental changes for the entire Holocene is fragmentary. This paper presents a new investigation of Lake Kournas in Crete, where recent coring provided a 15-m sequence covering ten millennia of land cover and land-use history. The study of this new core involves the analysis of the sediment dynamics, flood deposits, pollen, diatoms, fungal and algal remains, and microcharcoals. Results show that ecosystem development near Lake Kournas was not a linear process. They reveal linkages and feedbacks between vegetation, biodiversity, fire, human impact, erosion, and climate change. A possible human occupation and agro-pastoral activities around the lake may have been detected as early as 9500 cal BP, perhaps in a transitional phase between the Mesolithic and the Neolithic. At 8500 cal BP, climatic conditions may have promoted the expansion of the evergreen oak woodland. However, human impact was probably the most important driver of ecosystem change with the establishment of an agro-system after 8000 years ago. Thereafter, the trajectory of Kournas’ lake and catchment ecosystems from the Mid to Late Holocene follow the rhythm of land-use change. Among the traditional Mediterranean land uses, olive cultivation locally played a major role in the socio-ecosystem interactions, providing economic benefits but also destabilising soils. During the last six millennia, three main phases of olive cultivation occurred during the Final Neolithic-Minoan period, the Hellenistic-Roman-Byzantine (HRB) period and Modern times. Along with the changing land use under the successive political and economic influences rules, the resilience capacities of vegetation permitted it to shift back to higher biodiversity again after decreasing phases. Forest vegetation was always able to recover until the onset of the Venetian period (13th century), when woodlands were dramatically reduced. Only during the past century has forest vegetation slightly recovered, while the flood regime had already been altered during previous centuries. During the past 100 years, biodiversity markedly declined, probably in response to the industrialization of agriculture

    A large liquid xenon time projection chamber for the study of the radiative pion decay

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    A 64 1 liquid xenon TPC has been operated for the detection and measurement of the low energy gamma rays from the decay pi(+) --> mu(+) + nu + gamma. We present a detailed description of the chamber, the readout electronics and data acquisition together with the measurement of the liquid xenon purity and time stability obtained during a period of about two months. The electron lifetime was always longer than 2.7 ms (95% C.L.) and no deterioration of the liquid purity has been observed. Such a purity level and stability have never been previously reported for a large volume liquid xenon chamber, making this technique mature for physical applications
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