3,203 research outputs found

    Maintaining binding in working memory: Comparing the effects of intentional goals and incidental affordances

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    Much research on memory for binding depends on incidental measures. However, if encoding associations benefits from conscious attention, then incidental measures of binding memory might not yield a sufficient understanding of how binding is accomplished. Memory for letters and spatial locations was compared in three within-participants tasks, one in which binding was not afforded by stimulus presentation, one in which incidental binding was possible, and one in which binding was explicitly to be remembered. Some evidence for incidental binding was observed, but unique benefits of explicit binding instructions included preserved discrimination as set size increased and drastic reduction in false alarms to lures that included a new spatial location and an old letter. This suggests that substantial cognitive benefits, including enhanced memory for features themselves, might occur through intentional binding, and that incidental measures of binding might not reflect these advantages. (C) 2011 Elsevier Inc. All rights reserved

    Could natural selection change the geographic range limits of light brown apple moth (Lepidoptera, Tortricidae) in North America?

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    We artificially selected for increased freeze tolerance in the invasive light brown apple moth. Our results suggest that, by not accounting for adaptation to cold, current models of potential geographic distributions could underestimate the areas at risk of exposure to this species

    First Collection Records of \u3ci\u3eHippodamia Variegata\u3c/i\u3e (Coleoptera: Coccinellidae) in Minnesota Corn and Soybean

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    The coccinellid Hippodamia variegata (Goeze) (Coleoptera: Coccinellidae) is a relatively recent addition to the North American coccinellid fauna. This species was first reported in 1984 near Montreal, Quebec (Gordon 1987). Since then, its range has expanded beyond northeastern North America with the newest records in the midwestern United States, including Michigan (Gardiner and Parson 2005), Ohio (Pavuk et al. 2007), Wisconsin (Williams and Young 2009), and most recently South Dakota (Hesler and Lundgren 2011). Here we provide the first records of H. variegata in Minnesota. In addition, our records further define the movement pattern of this beetle across the Midwest by documenting its presence in the gap between Wisconsin and South Dakota

    An assessment and validation study of nuclear reactors for low power space applications

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    The feasibility and safety of six conceptual small, low power nuclear reactor designs was evaluated. Feasibility evaluations included the determination of sufficient reactivity margins for seven years of full power operation and safe shutdown as well as handling during pre-launch assembly phases. Safety evaluations were concerned with the potential for maintaining subcritical conditions in the event of launch or transportation accidents. These included water immersion accident scenarios both with and without water flooding the core. Results show that most of the concepts can potentially meet the feasibility and safety requirements; however, due to the preliminary nature of the designs considered, more detailed designs will be necessary to enable these concepts to fully meet the safety requirements

    Refining the Displacement of Culture and the Use of Scenes and Themes in Organizational Studies

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    The move to displace the concept of culture traditionally used in anthropology to organizational research is discussed. Issues surrounding the culture concept and the juxtaposition of culture and organization are given special attention. Current thinking about the nature of the process of displacement is refined. Examples from an ongoing study of a city transit organization are used to demonstrate the use of cultural scenes and themes in organizational research

    An Emic Perspective and Ethnoscience Methods for Organizational Research

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    This paper is in answer to the call for new, innovative perspectives and methodologies for organizational research. Although the approach here falls within the subjective/idiographic/qualitative/insider set of methodologies rather than the objective/nomothetic/quantitative/outsider set, there is the potential to bridge the gap between the two sets. Coming largely from anthropology, the emic perspective is explained; the specific steps for ethnoscience analyses are summarized; and examples and implications are given
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