Além do uso morfológico: o que o conhecimento semântico nos diz sobre o aspecto em português como L2

Esse estudo investiga a aquisição do aspecto [±perfeito] em português L2, mediante conhecimento da distinção [± acidental] que ocorre entre o pretérito perfeito e imperfeito em frases com quantificação adverbial (LENCI; BERTINETTO, 2000; MENÉNDEZ-BENITO, 2002). Mostramos que os aprendizes L2 intermediários demonstram conhecimento da semântica sintagmática, que conforme argumentamos é acessível por meio da aquisição de novos traços da L2. Como resultado, propomos que os dados dão suporte a teorias de continuidade da GU (DUFFIELD; WHITE, 1999; SCHWARTZ; SPROUSE, 1996) e oferecem evidência contra as assim chamadas propostas de Traços Malsucedidos (FAILED FEATURES; BECK, 1998; HAWKINS; CHAN, 1997) para ASL (aquisição de segunda língua). Além disso, discutimos tais dados considerando abordagens probabilísticas para ASL, que interpretam erros de uso morfológico nesse nível como evidência de déficits subjacentes das representações mentais de L2. Em consonância com outros autores, argumentamos que o desempenho morfológico não é por si só uma medida direta ou exata da competência linguística (PRÉVOST; WHITE, 2000; LARDIERE, 1998, 2006).PALAVRAS-CHAVES: Aquisição de L2. Aspecto em português como L2. Teorias de continuidade da GU.This study investigates the acquisition of [±perfective] aspect in L2 Portuguese via knowledge of the [± accidental] distinction that obtains between the Preterit and Imperfect in adverbially quantified sentences (LENCI; BERTINETTO, 2000; MENÉNDEZ-BENITO, 2002). Crucially, we show that intermediate L2 learners demonstrate phrasal semantic knowledge that we argue is accessed via the acquisition of new L2 features. As a result, we contend that the data support theories of adult UG-continuity (DUFFIELD; WHITE, 1999; SCHWARTZ; SPROUSE, 1996) and provide evidence in contra so-called Failed Features accounts of SLA (BECK, 1998; HAWKINS; CHAN, 1997). Furthermore, we discuss these data in light of probabilistic approaches to SLA, which interpret errors in morphological use at this level as evidence of underlying deficits in L2 mental representations. With others, we argue that morphological performance alone is neither a direct nor an exact measure of linguistic competence (PRÉVOST; WHITE, 2000; LARDIERE, 1998, 2006).KEYWORDSS: L2 acquisition. Aspect in L2 portuguese. Theories of adult UG-continuity. RESUMO Esse estudo investiga a aquisição do aspecto [±perfeito] em português L2, mediante conhecimento da distinção [± acidental] que ocorre entre o pretérito perfeito e imperfeito em frases com quantificação adverbial (LENCI; BERTINETTO, 2000; MENÉNDEZ-BENITO, 2002). Mostramos que os aprendizes L2 intermediários demonstram conhecimento da semântica sintagmática, que conforme argumentamos é acessível por meio da aquisição de novos traços da L2. Como resultado, propomos que os dados dão suporte a teorias de continuidade da GU (DUFFIELD; WHITE, 1999; SCHWARTZ; SPROUSE, 1996) e oferecem evidência contra as assim chamadas propostas de Traços Malsucedidos (FAILED FEATURES; BECK, 1998; HAWKINS; CHAN, 1997) para ASL (aquisição de segunda língua). Além disso, discutimos tais dados considerando abordagens probabilísticas para ASL, que interpretam erros de uso morfológico nesse nível como evidência de déficits subjacentes das representações mentais de L2. Em consonância com outros autores, argumentamos que o desempenho morfológico não é por si só uma medida direta ou exata da competência linguística (PRÉVOST; WHITE, 2000; LARDIERE, 1998, 2006).PALAVRAS-CHAVES: Aquisição de L2. Aspecto em português como L2. Teorias de continuidade da GU

Terrapin technologies manned Mars mission proposal

A Manned Mars Mission (M3) design study is proposed. The purpose of M3 is to transport 10 personnel and a habitat with all required support systems and supplies from low Earth orbit (LEO) to the surface of Mars and, after an eight-man surface expedition of 3 months, to return the personnel safely to LEO. The proposed hardware design is based on systems and components of demonstrated high capability and reliability. The mission design builds on past mission experience, but incorporates innovative design approaches to achieve mission priorities. Those priorities, in decreasing order of importance, are safety, reliability, minimum personnel transfer time, minimum weight, and minimum cost. The design demonstrates the feasibility and flexibility of a Waverider transfer module

Integrated System Health Management (ISHM) Technology Demonstration Project Final Report

Integrated System Health Management (ISHM) is an essential capability that will be required to enable upcoming explorations mission systems such as the Crew Exploration Vehicle (CEV) and Crew Launch Vehicle (CLV), as well as NASA aeronautics missions. However, the lack of flight experience and available test platforms have held back the infusion by NASA Ames Research Center (ARC) and the Jet Propulsion Laboratory (JPL) of ISHM technologies into future space and aeronautical missions. To address this problem, a pioneer project was conceived to use a high-performance aircraft as a low-cost proxy to develop, mature, and verify the effectiveness of candidate ISHM technologies. Given the similarities between spacecraft and aircraft, an F/A-18 currently stationed at Dryden Flight Research Center (DFRC) was chosen as a suitable host platform for the test bed. This report describes how the test bed was conceived, how the technologies were integrated on to the aircraft, and how these technologies were matured during the project. It also describes the lessons learned during the project and a forward path for continued work

Advanced Caution and Warning System, Final Report - 2011

The work described in this report is a continuation of the ACAWS work funded in fiscal year (FY) 2010 under the Exploration Technology Development Program (ETDP), Integrated Systems Health Management (ISHM) project. In FY 2010, we developed requirements for an ACAWS system and vetted the requirements with potential users via a concept demonstration system. In FY 2011, we developed a working prototype of aspects of that concept, with placeholders for technologies to be fully developed in future phases of the project. The objective is to develop general capability to assist operators with system health monitoring and failure diagnosis. Moreover, ACAWS was integrated with the Discrete Controls (DC) task of the Autonomous Systems and Avionics (ASA) project. The primary objective of DC is to demonstrate an electronic and interactive procedure display environment and multiple levels of automation (automatic execution by computer, execution by computer if the operator consents, and manual execution by the operator)

The SPARC Toroidal Field Model Coil Program

The SPARC Toroidal Field Model Coil (TFMC) Program was a three-year effort between 2018 and 2021 that developed novel Rare Earth Yttrium Barium Copper Oxide (REBCO) superconductor technologies and then successfully utilized these technologies to design, build, and test a first-in-class, high-field (~20 T), representative-scale (~3 m) superconducting toroidal field coil. With the principal objective of demonstrating mature, large-scale, REBCO magnets, the project was executed jointly by the MIT Plasma Science and Fusion Center (PSFC) and Commonwealth Fusion Systems (CFS). The TFMC achieved its programmatic goal of experimentally demonstrating a large-scale high-field REBCO magnet, achieving 20.1 T peak field-on-conductor with 40.5 kA of terminal current, 815 kN/m of Lorentz loading on the REBCO stacks, and almost 1 GPa of mechanical stress accommodated by the structural case. Fifteen internal demountable pancake-to-pancake joints operated in the 0.5 to 2.0 nOhm range at 20 K and in magnetic fields up to 12 T. The DC and AC electromagnetic performance of the magnet, predicted by new advances in high-fidelity computational models, was confirmed in two test campaigns while the massively parallel, single-pass, pressure-vessel style coolant scheme capable of large heat removal was validated. The REBCO current lead and feeder system was experimentally qualified up to 50 kA, and the crycooler based cryogenic system provided 600 W of cooling power at 20 K with mass flow rates up to 70 g/s at a maximum design pressure of 20 bar-a for the test campaigns. Finally, the feasibility of using passive, self-protection against a quench in a fusion-scale NI TF coil was experimentally assessed with an intentional open-circuit quench at 31.5 kA terminal current.Comment: 17 pages 9 figures, overview paper and the first of a six-part series of papers covering the TFMC Progra

Distribution and Cconnection to other Plant-Communities of Genista radiata (L.) Scop in the South Tyrol (Italy)

Es werden die Genista radiata-Bestände an der Mendel in Südtirol (Italien) beschrieben und ihr Gesellschaftsanschluß diskutiert. Das Genisto-Festucetum alpestris Peer 83 besidelt steile südexponierte Kalkhänge der hochmontanen und subalpinen Stufe und ersetzt z.T. den Zwergstrauchgürtel mit Pinus mugo. Ähnlich zusammengesetzt ist das Genisto-Festucetum alpestris pinetosum Peer 83, das in den ¡lockeren Erika-Kiefernwäldern auftritt und bis in die tiefmontane Stufe hinunterreicht. Keinerlei syntaxonomische Bedeutung besitzt Genista radiata in den thermophilen Buschwaldgesellschaften, in denen die Pflanze lediglich eine Variante zum Orno-Ostryetum seslerietosum Peer 81 darstellt und speziell in der Saumzone anzutreffen ist. Auch in den Lärchenwiesen der Kammlagen kommt Genista radiata nur sporadisch vor. Sie ist hier mit dem Festucetum nigrescentis laricetosum subass. prov. verzahnt.Istražene su vegetacijske sastojine vrste Genista radiata u južnom Tirolu i razmatrana njihova fitocenološka pripadnost. Asocijacija Genisto-Festucetum alpestris Peer 83 nastava strme, južne vapnenačke obronke visokobrdskog i subalpskog pojasa. Subasocijacija Genisto-Festucetum alpestris pinetosum Peer 83 dolazi u rijetkim borovim šumama s crnjušom i spušta se do u niži brdski pojas. Termofilne niske šume, u kojima Genista radiata nema posebno sintaksonomsko značenje, označene su samo kao varijanta zajednice Orno-Ostryetum seslerietosum Peer 81. Genista radiata dolazi također na travnjacima s arišem, ali samo sporadično i to u mješavini sa zajednicom Festucetum nigrescentis laricetosnm subass. prov.The Genista radiata-communities of the Mendel in the South Tyrol (Italy) are described and their connection to other plant-communities is discussed. Genisto-Festucetum alpestris Peer 83 settles on steep, south- exposed colcareous slopes of high-mountain and subalpine altitudes and replaces particularly the dwarf-shrub-belt with Firms mugo. Similar contents aire found in Genisto-F estucetum alpestris pinetasum Peer 83, which occurs in undensed Erico-Pinetum-communities and reaches down to the low-mountain-altitude. In the thermophilic bush-communities, in which Genista radiata is found only as a variant of Orneto-Ostryetum seslerie- tosum (Peer 81), the plant has no syntaxonomic importance. Genista radiata especially is found in the edge-zone. In the grassland of the larch- communities of the ridges Genista radiata appears only sporadically. Here the plant appeals in Festucetum nigrescentis laricetosum subass. prov

Animal-borne telemetry: An integral component of the ocean observing toolkit

Animal telemetry is a powerful tool for observing marine animals and the physical environments that they inhabit, from coastal and continental shelf ecosystems to polar seas and open oceans. Satellite-linked biologgers and networks of acoustic receivers allow animals to be reliably monitored over scales of tens of meters to thousands of kilometers, giving insight into their habitat use, home range size, the phenology of migratory patterns and the biotic and abiotic factors that drive their distributions. Furthermore, physical environmental variables can be collected using animals as autonomous sampling platforms, increasing spatial and temporal coverage of global oceanographic observation systems. The use of animal telemetry, therefore, has the capacity to provide measures from a suite of essential ocean variables (EOVs) for improved monitoring of Earth's oceans. Here we outline the design features of animal telemetry systems, describe current applications and their benefits and challenges, and discuss future directions. We describe new analytical techniques that improve our ability to not only quantify animal movements but to also provide a powerful framework for comparative studies across taxa. We discuss the application of animal telemetry and its capacity to collect biotic and abiotic data, how the data collected can be incorporated into ocean observing systems, and the role these data can play in improved ocean management