114 research outputs found

    Resumptive pronouns facilitate processing of long-distance relative clause dependencies in second language English

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    This study provides evidence that resumptive pronouns (RPs) can facilitate the processing of long-distance subject relative clause (RC) dependencies during second language (L2) sentence comprehension, even where they are disallowed in both the first language (L1) and the target language. A test group of 29 L1-Korean L2 learners (L2ers) of English and a control group of 25 native English speakers completed an online self-paced reading task (SPRT) and an offline acceptability judgment task (AJT) designed to test whether RPs reflect Interlanguage grammar representations and/or a strategy to alleviate processing overload. Analysis of the SPRT data from both response times and comprehension question accuracy indicates that RPs assisted the L2ers, but not the native speakers, with dependency resolution in long-distance RCs. For the AJT data, a proficiency effect was observed whereby some lower-proficiency L2ers, but not the higher-proficiency ones or the native speakers, tended to prefer RPs over gaps in long-distance RCs. The implications of these findings and plans for future research are discussed

    Family medicine residents' risk of adverse motor vehicle events: comparison between rural and urban placements.

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    Background: Sleep deprivation and fatigue are associated with long and irregular work hours. These work patterns are common to medical residents. Motor vehicle crashes (MVCs) are a leading cause of injury related deaths in Canada, with MVC fatality rates in rural areas up to three times higher than in urban areas. Objectives: To: 1) examine the number of adverse motor vehicle events (AMVEs) in family medicine residents in Canada; 2) assess whether residents with rural placements are at greater risk of experiencing AMVEs than urban residents; and 3) determine if family medicine residency programs across Canada have travel policies in place. Methodology: A prospective, cross-sectional study, using a national survey of second-year family medicine residents. Results: A higher percentage of rural residents reported AMVEs than urban residents. The trend was for rural residents to be involved in more MVCs during residency, while urban residents were more likely to be involved in close calls. The majority of Canadian medical schools do not have resident travel policies in place. Conclusion: AMVEs are common in family medicine residents, with a trend for the number of MVCs to be greater for rural residents. These data support the need for development and incorporation of travel policies by medical schools

    Hero or anti-hero?: Narratives of newswork and journalistic identity construction in complex digital megastories

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    Exploring constructions of journalistic identity in a digital age has been a lively area of scholarship as the field of digital journalism studies has grown (Franklin 2013, 2014; Steensen and Ahva 2015). Yet despite many approaches to understanding digital change, key avenues for understanding changing constructions of identity remain underexplored. This paper addresses a conceptual void in research literature by employing semiotic and semantic approaches to analyse performances of journalistic identity in narratives of newswork facilitated by and focused on digital megaleaks. It seeks to aid understanding of the way narratives describe changing practices of newsgathering, and how journalists position themselves within these hybrid traditional/digital stories. Findings show news narratives reinforce the primacy of journalists within traditional boundaries of a journalistic field, and articulate a preferred imagination of journalistic identity. Methodologically, this paper shows how semantic and semiotic approaches lend themselves to studying narratives of newswork within journalistic metadiscourses to understand journalistic identity at the nexus of traditional and digital dynamics. The resultant portrait of journalistic identity channels a sociohistoric, romantic notion of the journalist as “the shadowy figure always to be found on the edges of the century’s great events” (Inglis 2002, xi), updated to accommodate modern, digital dynamics

    Overview of Spirit Microscopic Imager Results

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    This paper provides an overview of Mars Exploration Rover Spirit Microscopic Imager (MI) operations and the calibration, processing, and analysis of MI data. The focus of this overview is on the last five Earth years (2005-2010) of Spirit's mission in Gusev crater, supplementing the previous overview of the first 450 sols of the Spirit MI investigation. Updates to radiometric calibration using in-flight data and improvements in high-level processing are summarized. Released data products are described, and a table of MI observations, including target/feature names and associated data sets, is appended. The MI observed natural and disturbed exposures of rocks and soils as well as magnets and other rover hardware. These hand-lens-scale observations have provided key constraints on interpretations of the formation and geologic history of features, rocks, and soils examined by Spirit. MI images complement observations by other Spirit instruments, and together show that impact and volcanic processes have dominated the origin and evolution of the rocks in Gusev crater, with aqueous activity indicated by the presence of silica-rich rocks and sulfate-rich soils. The textures of some of the silica-rich rocks are similar to terrestrial hot spring deposits, and observations of subsurface cemented layers indicate recent aqueous mobilization of sulfates in places. Wind action has recently modified soils and abraded many of the rocks imaged by the MI, as observed at other Mars landing sites. Plain Language Summary The Microscopic Imager (MI) on NASA's Spirit rover returned the highest-resolution images of the Martian surface available at the time of the 2004-2010 mission. Designed to survive 90 Mars days (sols) and search for evidence of water in the past, Spirit returned data for 2210 sols, far exceeding all expectations. This paper summarizes the scientific insights gleaned from the thousands of MI images acquired during the last 5years of the mission, supplementing the summary of the first 450 sols of the Spirit MI investigation published previously (Herkenhoff et al., ). Along with data from the other instruments on Spirit, MI images guided the scientific interpretation of the geologic history of the rocks and soils observed in Gusev crater on Mars. We conclude that the geologic history of the area explored by Spirit has been dominated by impacts and volcanism, and that water, perhaps very hot water, was involved in the evolution of some of the rocks and soils. More recently, winds have moved soil particles and abraded rocks, as observed elsewhere on Mars. These results have improved our understanding of Mars' history and informed planning of future missions to Mars.National Aeronautics and Space AdministrationPublic domain articleThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]

    What's on the horizon for community-based conservation? Emerging threats and opportunities

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    Community-based conservation can support livelihoods and biodiversity, while reinforcing local and Indigenous values, cultures, and institutions. Its delivery can help address cross-cutting global challenges, such as climate change, conservation, poverty, and food security. Therefore, understanding trends in community-based conservation is pertinent to setting and implementing global goals. We undertook a horizon scan to prioritize 15 emerging threats and opportunities expected to impact the future effectiveness of community-based conservation. Topics relate to global biodiversity policy; human rights; shifting human geography; inclusion, diversity, equity, and access; conservation finance and income; and economic reforms. Our findings offer guidance on strengthening community-based conservation to achieve global environmental and development goals

    Large-scale mapping of human protein–protein interactions by mass spectrometry

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    Mapping protein–protein interactions is an invaluable tool for understanding protein function. Here, we report the first large-scale study of protein–protein interactions in human cells using a mass spectrometry-based approach. The study maps protein interactions for 338 bait proteins that were selected based on known or suspected disease and functional associations. Large-scale immunoprecipitation of Flag-tagged versions of these proteins followed by LC-ESI-MS/MS analysis resulted in the identification of 24 540 potential protein interactions. False positives and redundant hits were filtered out using empirical criteria and a calculated interaction confidence score, producing a data set of 6463 interactions between 2235 distinct proteins. This data set was further cross-validated using previously published and predicted human protein interactions. In-depth mining of the data set shows that it represents a valuable source of novel protein–protein interactions with relevance to human diseases. In addition, via our preliminary analysis, we report many novel protein interactions and pathway associations

    Diagnostics and modeling of plasma processes in ion sources

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    Impact of Optimized Breastfeeding on the Costs of Necrotizing Enterocolitis in Extremely Low Birthweight Infants

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    To estimate risk of NEC for ELBW infants as a function of preterm formula and maternal milk (MM) intake and calculate the impact of suboptimal feeding on NEC incidence and costs
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