3,340 research outputs found

    Ideology, Instrumentality and Economics Education: on the Secretion of Values within Philanthropy, Financial Capability and Enterprise Education in English Schools

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    In England state provision for economics education in schools has been negligible. Except for a marginal number of students opting to study economics at secondary level, the subject has been largely limited to implicit lessons in philanthropy through liberal activities such as fundraising for charity and the like. Now, however, New Labour has countered this neglect by adding Personal Financial Capability and Enterprise and Entrepreneurial Education to the statute book. This paper takes issue with both the implicit and explicit curriculum for economics education in an attempt to uncover its assumptions and critique underlying policy.

    EVERY PARENT MATTERS: REFLECTIONS FROM ENGLAND UPON NEW LABOURā€™S PARENT POLICY

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    In England, until May 2010, the New Labour party had been in power for thirteen years. This paper is a reflection back upon its period in office and its strident policies on parents and families. It questions its stance on parental voice and choice, looks at issues of trust and contract, and considers the idea of parent empowerment in the context of a preference for the middle class that underpinned much of its policy

    A study of selected Kansas high school science clubs

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    Call number: LD2668 .R4 1963 G4

    Turbopump Seal Testing at Marshall Space Flight Center

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    The new ARES space flight program has presented many challenges to aerospace engineers and designers. One of the areas for consideration are the seals in the turbopumps that supply cryogenic propellants to the combustion chamber in the upper stage. Heritage face seals that worked in the past might not be sufficient in the newer turbopumps with increased speeds, pressures across the seals, and loads. New seal materials, engineering designs, and analysis techniques have been developed since the early use of these heritage seals, however, rub conditions and surface degradation at the sliding contact cannot be reliably predicted. Testing is required to determine the safe operating limits and verify seal wear life over the operating range. Rocketdyne in Canoga Park California entered into a task agreement with MSFC to design, fabricate, build, test, disassemble, and inspect hardware after tests of carbon materials and wear resistant coatings. The purpose of testing would be to determine the safe operating limits, empirically iterate the design, and select the best combination of materials for face seals and mating rings. This paper summarizes the many hours and efforts of individuals and teams to get the program operating successfully and presents the test results that were obtained

    Keck Planet Finder: preliminary design

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    The Keck Planet Finder (KPF) is a fiber-fed, high-resolution, high-stability spectrometer in development for the W.M. Keck Observatory. The instrument recently passed its preliminary design review and is currently in the detailed design phase. KPF is designed to characterize exoplanets using Doppler spectroscopy with a single measurement precision of 0.5 m s^(āˆ’1) or better; however, its resolution and stability will enable a wide variety of other astrophysical pursuits. KPF will have a 200 mm collimated beam diameter and a resolving power greater than 80,000. The design includes a green channel (445 nm to 600 nm) and red channel (600 nm to 870 nm). A novel design aspect of KPF is the use of a Zerodur optical bench, and Zerodur optics with integral mounts, to provide stability against thermal expansion and contraction effects

    Medical Manikin Augmented Reality Simulation (M2ARS)

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    The Medical Manikin Augmented Reality Simulation (M2ARS) is an augmented reality simulation application built for the Microsoft HoloLens 2 that uses the principles of anatomy transfer to overlay human anatomical structures onto a medical manikin digitally. These structures currently consist of the skeletal, muscular, and circulatory systems. In addition, a model of the lungs and an animated heart are also available within the simulation. M2ARS allows the user to view these structures in a manner that is both visually and spatially accurate to the human body. This application contains two modes; an augmented reality mode, which uses a manikin, and a standalone virtual environment, which does not require a manikin. M2ARS aims to assist medical students and practitioners in their studies by providing an interactive method to better understand anatomical structures

    Keck Planet Finder: Zerodur optical bench mechanical design

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    The Keck Planet Finder (KPF) is a fiber-fed, high-resolution, high-stability spectrometer in development for the W.M. Keck Observatory. To measure Doppler shifts to 0.5 m/s or better requires some of the optics be stable to 2 nm vertically and 2 nrad in pitch angle throughout a potentially one hour long observation. One traditional approach to this thermal stability problem is to build a metal bench and then control the spectrometer thermal environment to milli-Kelvin levels. An alternative approach used by KPF is to employ a Zerodur bench of extremely low coefficient of expansion (CTE), which relaxes the thermal stability required for the spectrometer assembly. Furthermore, Zerodur optics with integral mounts are used where possible, and are placed in contact with the bench through Zerodur shims. Springs are used to preload the optics and shims within pockets machined into the Zerodur bench. We will describe how this approach has been adapted for each optic (some of which are 450 mm high with a mass of 30 kg), and how the system meets our earthquake survival requirement of 0.92 g. This mounting scheme allows us to avoid using high-CTE metals or adhesives within the optic mounting system, and therefore fully exploit the high thermal stability of the Zerodur optical bench
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