735 research outputs found

    The effects of protection on the growth rate and on the need for external assistance

    Get PDF
    Host studies of protection in developing countries are concerned with questions of static losses of real output or inefficient resource allocation at some point of time. These studies are often criticised as not relevant to problems of development. This paper incorporates the effects of protection into the most widely used macro—economic projection model, the 'two—gap' model of Chenory and Strout, and examines some dynamic implications of protection. The adaptation of the two-gap model explicitly allows for two facts related to protection: 1) The apparent amount of import substitution or foreign exchange saving, overstates the actual, import saving if the new industry is protected. 2) The apparent amount of export growth or new foreign exchango earned, is understated whenever protection applies only to import substitutes. Thus, the presence of protection will cause the usual macroeconomic projection models to understate import demand whenever conventional definitions of value added are used, if there is emphasis on import substitution behind protection in the plan period. The adaptation to the model makes it qui+e clear why oountries pursuing industrialization by means of protection often run into balance of payments difficulties; The factor payments generated in import—substituting industries cxceed the value of foreign exchange saved in the industry - sometimes by substantial amounts. For countries like Kenya, Uganda and Tanzania with a high marginal propensity to import, and for industries &s highly protected as come of the largo establishments in East Africa, it is quite possible for an investment in import substitution to produce a deterioration, rather than an improvement, in the balance of payments. The paper also explores the implications of protection for the "requirements" of foreign assistance to sustain a given development programs The results show that, because protection to industries in fact results in less balance of payments improvement than it appears to, the need for foreign assistance will be greater (i.e. the balance of payments constraint is more severe) the greater is the reliance on protection to "encourage" growth

    XI.—NOTES: The Uniformity of Nature

    Get PDF
    n/

    \u3ci\u3eRough diary of the march of I Battery 1st Brigade, R.A., to Kandahar, & c., November, 1878, to April, 1879\u3c/i\u3e

    Get PDF
    Author\u27s diary furnishes record of what the Battery did and, gives an idea of what the first march to Kandahar was like

    Participants’ Experiences in Heutagogy Teacher Professional Education in Indonesia

    Get PDF
    This study investigated a heutagogy-informed teacher professional education model designed to assist Indonesian teachers in achieving the competencies established by the Indonesian government to address teacher quality issues. The critical concepts of the model include self-determined learning, metacognitive reflection, collaborative learning, and capability development. An embedded design methodology, grounded in pragmatism as the overarching research paradigm, was employed for this investigation. The findings of this study provide significant insights for enhancing teachers’ professional education in Indonesia, particularly in terms of the effectiveness of heutagogy-informed approaches compared to traditional approaches of teacher training, with additional benefits stemming from heutagogy-informed, technology-facilitated learning impacting both their professional development and intended classroom practices

    Diamond electro-optomechanical resonators integrated in nanophotonic circuits

    Full text link
    Diamond integrated photonic devices are promising candidates for emerging applications in nanophotonics and quantum optics. Here we demonstrate active modulation of diamond nanophotonic circuits by exploiting mechanical degrees of freedom in free-standing diamond electro-optomechanical resonators. We obtain high quality factors up to 9600, allowing us to read out the driven nanomechanical response with integrated optical interferometers with high sensitivity. We are able to excite higher order mechanical modes up to 115 MHz and observe the nanomechanical response also under ambient conditions.Comment: 15 pages, 4 figure

    High-Q optomechanical circuits made from polished nanocrystalline diamond thin films

    Full text link
    We demonstrate integrated optomechanical circuits with high mechanical quality factors prepared from nanocrystalline diamond thin films. Using chemomechanical polishing, the RMS surface roughness of as grown polycrystalline diamond films is reduced below 3nm to allow for the fabrication of high-quality nanophotonic circuits. By integrating free-standing nanomechanical resonators into integrated optical devices, efficient read-out of the thermomechanical motion of diamond resonators is achieved with on-chip Mach-Zehnder interferometers. Mechanical quality factors up to 28,800 are measured for four-fold clamped optomechanical resonators coupled to the evanescent near-field of nanophotonic waveguides. Our platform holds promise for large-scale integration of optomechanical circuits for on-chip metrology and sensing applications
    • …
    corecore