2,242 research outputs found

    Conversation Recording : Practice Derived from Theory and Context

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    High voltage solar array study Final report

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    High voltage solar array stud

    Improving coreference resolution by using conversational metadata

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    In this paper, we propose the use of metadata contained in documents to improve coreference resolution. Specifically, we quantify the impact of speaker and turn information on the performance of our coreference system, and show that the metadata can be effectively encoded as features of a statistical resolution system, which leads to a statistically significant improvement in performance.

    Biodiesel Mandate Laws in Argentina and Brazil: An Estimation of Soybean Oil Foregone Export Revenues

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    Replaced with revised version of paper 02/22/08.Research and Development/Tech Change/Emerging Technologies,

    Complete Genome Sequences of Arcobacter butzleri ED-1 and Arcobacter sp Strain L, Both Isolated from a Microbial Fuel Cell

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    Arcobacter butzleri strain ED-1 is an exoelectrogenic epsilonproteobacterium isolated from the anode biofilm of a microbial fuel cell. Arcobacter sp. strain L dominates the liquid phase of the same fuel cell. Here we report the finished and annotated genome sequences of these organisms

    Differential Synchronization in Default and Task-Specific Networks of the Human Brain

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    On a regional scale the brain is organized into dynamic functional networks. The activity within one of these, the default network, can be dissociated from that in other task-specific networks. All brain networks are connected structurally but evidently are only transiently connected functionally. One hypothesis as to how such transient functional coupling occurs is that network formation and dissolution is mediated by increases and decreases in oscillatory synchronization between constituent brain regions. If so, then we should be able to find transient differences in intra-network synchronization between the default network and a task-specific network. In order to investigate this hypothesis we conducted two experiments in which subjects engaged in a Sustained Attention to Response Task while having brain activity recorded via high-density electroencephalography (EEG). We found that during periods when attention was focused internally (mind wandering) there was significantly more neural phase synchronization between brain regions associated with the default network, whereas during periods when subjects were focused on performing the visual task there was significantly more neural phase synchrony within a task-specific brain network that shared some of the same brain regions. These differences in network synchrony occurred in each of theta, alpha, and gamma frequency bands. A similar pattern of differential oscillatory power changes, indicating modulation of local synchronization by attention state, was also found. These results provide further evidence that the human brain is intrinsically organized into default and task-specific brain networks, and confirm that oscillatory synchronization is a potential mechanism for functional coupling within these networks

    Production of Microbial Leather from Culled Sweet Potato Sugars via Kombucha Culture

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    The sweet potato industry is confronted during most growing seasons with an abundance of potatoes that are not appealing to consumers for use as table stock or fresh produce. These process grade roots do not garner as high a value as premium grade sweet potatoes. The purpose of this investigation was to extract sucrose from culled sweet potatoes and using a modification of available recipes, manipulate the kombucha culture to create a bio-based microbial leather.While the production of grow your own leather is not a new concept, approaching the process from a chemical and biological engineering perspective provides potential for a sustainable leather product. Additionally, the value loss for sweet potato farmers with higher percentages of culled crop can be devastating
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