427,010 research outputs found

    DRA method: Powerful tool for the calculation of the loop integrals

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    We review the method of the calculation of multiloop integrals suggested in Ref.\cite{Lee2010}.Comment: 6 pages, contribution to ACAT2011 proceedings, Uxbridge, London, September 5-9, 2011, typos are correcte

    Bike Athlete Performance

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    Faculty reflection on VCU Great Bike Race Book course. Course Description: This track will focus on nutritional and training practices of cyclists competing in the UCI Worlds. YouTube Videos referenced in reflection: VCU Exercise Science: Christian Vande Velde Interview VCU Exercise Science - Sports Nutritionist Dr Janet Rankin Interview Fuel for a 5 Hour Ride Assignment 3: My Musette Assignment 4: Bike Athlete Performance VCU Exercise Science: Professional Cyclist Evie Stevens Intervie

    Improved ultrasonic biomedical measuring apparatus

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    Device for making measurements of organs in living specimens and recording movements of organs is described. System uses series of ultrasonic pulses beamed into body of animal and reflected echo pulses are picked up by transducers and recorded. Diagram of equipment required and method of application is included

    Metal detector system

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    Signal voltage resulting from the disturbance of an electromagnetic field within the volume of a sensitive area is compared with a reference ac voltage for polarity information, which identifies the material. System output amplitude and polarity indicate approximate size and type of metal, respectively

    Interview with Lee Mitau, Trustee

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    The Campaign for Better Care: Summary Evaluation Findings

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    This evaluation of the Campaign for Better Care -- an Atlantic-funded effort to include the voices and perspectives of vulnerable populations in health care so that it reflected their needs -- found that although the foundation provided needed organizational support, resources are still limited in carrying out this enormous task. Researchers suggest that a compelling, evidence-based case is needed to convince decision-makers that consumer involvement adds value in developing policy. In addition, tools to increase consumer involvement at the local level need to be tailored to site-specific needs and context.The evaluation, which Atlantic commissioned from the Philip R. Lee Institute for Health Policy Studies at the University of California- San Francisco, examined the approaches of key grantees -- Community Catalyst, National Partnership for Women and Families and PICO -- and measured their short and intermediate term outcomes and identified lessons learned. Though their specific approaches varied, these three national organizations served as important catalysts within the communities in which they worked, providing advocacy, policy and organizing experience and connecting with local organizations as partners. Despite the challenging nature of this work, incremental steps were made towards greater consumer input in community health care reform efforts.

    Ultrasonic biomedical measuring and recording apparatus

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    A train of ultrasonic pulses is beamed into the body of an animal. Organs intercepted by the beam reflect echo pulses following each transmitted pulse. An electronic gate with a variable width and a variable time delay relative to the transmitted pulse is utilized for selecting echoes derived from other organs or portions of organs. The integral of the echo signals received within the first half of the gate period is subtracted from a corresponding integral of the echo signal received during the second half of the gate to derive an error signal for controlling the time delay of the gate. In this manner, the selected echo signal is always maintained in the center of the gate

    Biomedical ultrasonoscope

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    The combination of a "C" mode scan electronics in a portable, battery powered biomedical ultrasonoscope having "A" and "M" mode scan electronics, the latter including a clock generator for generating clock pulses, a cathode ray tube having X, Y and Z axis inputs, a sweep generator connected between the clock generator and the X axis input of the cathode ray tube for generating a cathode ray sweep signal synchronized by the clock pulses, and a receiver adapted to be connected to the Z axis input of the cathode ray tube. The "C" mode scan electronics comprises a plurality of transducer elements arranged in a row and adapted to be positioned on the skin of the patient's body for converting a pulsed electrical signal to a pulsed ultrasonic signal, radiating the ultrasonic signal into the patient's body, picking up the echoes reflected from interfaces in the patient's body and converting the echoes to electrical signals; a plurality of transmitters, each transmitter being coupled to a respective transducer for transmitting a pulsed electrical signal thereto and for transmitting the converted electrical echo signals directly to the receiver, a sequencer connected between the clock generator and the plurality of transmitters and responsive to the clock pulses for firing the transmitters in cyclic order; and a staircase voltage generator connected between the clock generator and the Y axis input of the cathode ray tube for generating a staircase voltage having steps synchronized by the clock pulses

    Bio-isolated dc operational amplifier

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    A bio-isolated dc operational amplifier is described for use in making bioelectrical measurements of a patient while providing isolation of the patient from electrical shocks. The circuit contains a first operational amplifier coupled to the patient with its output coupled in a forward loop through a first optic coupler to a second operational amplifier. The output of the second operational amplifier is coupled to suitable monitoring circuitry via a feedback circuit including a second optic coupler to the input of the first operational amplifier
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