2,189 research outputs found

    Gaseous Electronics

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    Contains report on one research project.Joint Services Electronics Programs (U.S. Army, U.S. Navy, and U.S. Air Force) under Contract DA 28-043-AMC-02536(E

    A Task Manager for a Multiprocessor Computer System

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    The advent of the 32-bit microprocessor has sparked the manufacture of a number of 32-bit single-board computers (SBCs). These SBCs rival [performance of minicomputers for a fraction of the cost, and a number of them conform to standard 32-bit bus structures. A 32-bit multiprocessor computer system can be created by connecting two or more SBCs on a 32-bit bus. This computer system has the potential of providing many times the power as a single-processor computer system as well as a significant reduction in cost. The Multiprocessor Task Manager is designed to efficiently distribute software tasks, schedule their execution, and manage data flow between them, such that an effective and reliable multiprocessor is realized

    The Effect of Incumbent Bidding in Set-Aside Auctions: An Analysis of Prices in the Closed and Open Segments of FCC Auction 35

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    This paper examines the impact of an incumbent carrier’s participation in two simultaneously conducted auctions: one set-aside for non-incumbents and one open to all carriers. This paper estimates the extent to which prices in the closed auction were inflated by the participation of incumbents. This paper also estimates what prices would have been in the open auction had incumbents been excluded from bidding in the closed. It is found that an incumbent’s participation in the closed auction through a front, Alaska Native, enabled it to win more licenses at lower prices in FCC Auction 35. In contrast, non-incumbents won fewer licenses and paid more for what they won. The econometric techniques employed here to estimate prices in a “but for” world could be replicated in future damage analysis. Finally, this paper suggests an alternative method of screening bidders seeking access to set-aside auctions that would be consistent with the FCC’s goal of promoting competition in the wireless industry.Auctions, spectrum auctions, market design

    Levels of Ca\u3csub\u3ev\u3c/sub\u3e1.2 L-Type Ca\u3csup\u3e2+\u3c/sup\u3e Channels Peak in the First Two Weeks in Rat Hippocampus Whereas Ca\u3csub\u3ev\u3c/sub\u3e1.3 Channels Steadily Increase through Development

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    Influx of calcium through voltage-dependent channels regulates processes throughout the nervous system. Specifically, influx through L-type channels plays a variety of roles in early neuronal development and is commonly modulated by G-protein-coupled receptors such as GABAB receptors. Of the four isoforms of L-type channels, only Cav1.2 and Cav1.3 are predominately expressed in the nervous system. Both isoforms are inhibited by the same pharmacological agents, so it has been difficult to determine the role of specific isoforms in physiological processes. In the present study, Western blot analysis and confocal microscopy were utilized to study developmental expression levels and patterns of Cav1.2 and Cav1.3 in the CA1 region of rat hippocampus. Steady-state expression of Cav1.2 predominated during the early neonatal period decreasing by day 12. Steady-state expression of Cav1.3 was low at birth and gradually rose to adult levels by postnatal day 15. In immunohistochemical studies, antibodies against Cav1.2 and Cav1.3 demonstrated the highest intensity of labeling in the proximal dendrites at all ages studied (P1–72). Immunohistochemical studies on one-week-old hippocampi demonstrated significantly more colocalization of GABAB receptors with Cav1.2 than with Cav1.3, suggesting that modulation of L-type calcium current in early development is mediated through Cav1.2 channels

    Using ECRI Techniques to Improve Reading Skills in Social Studies

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    Improving the reading skills of students is the responsibility of every content area teacher. Since too few secondary teachers are provided the techniques to further students\u27 growth in reading, we looked for ways and programs which dealt with integrating reading in the subject area

    Gaseous Electronics

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    Contains reports on one research project.Joint Services Electronics Programs (U. S. Army, U. S. Navy, and U. S. Air Force) under Contract DA 36-039-AMC-03200(E

    Glucose-fructose likely improves gastrointestinal comfort and endurance running performance relative to glucose-only

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    This study aimed to determine whether glucose-fructose (GF) ingestion, relative to glucose-only, would alter performance, metabolism, gastrointestinal (GI) symptoms, and psychological affect during prolonged running. On two occasions, 20 runners (14 men) completed a 120-min submaximal run followed by a 4-mile time trial (TT). Participants consumed glucose-only (G) or GF (1.2:1 ratio) beverages, which supplied ~1.3 g/min of carbohydrate. Substrate use, blood lactate, psychological affect [Feeling Scale (FS)], and GI distress were measured. Differences between conditions were assessed using magnitude-based inferential statistics. Participants completed the TT 1.9% (−1.9; −4.2, 0.4) faster with GF, representing a likely benefit. FS ratings were possibly higher and GI symptoms were possibly-to-likely lower with GF during the submaximal period and TT. Effect sizes for GI distress and FS ratings were relatively small (Cohen’s d = ~0.2 to 0.4). GF resulted in possibly higher fat oxidation during the submaximal period. No clear differences in lactate were observed. In conclusion, GF ingestion – compared with glucose-only – likely improves TT performance after 2 h of submaximal running, and GI distress and psychological affect are likely mechanisms. These results apply to runners consuming fluid at 500– 600 mL/h and carbohydrate at 1.0–1.3 g/min during running at 60–70% VO2peak
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