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  • Newspaper

  • Tác động của ô nhiễm không khí lên chi tiêu y tế ở Việt Nam

    • Authors: Nguyễn Thị Phương (2021)

  • Nghiên cứu xem xét mức chi tiêu y tế tại Việt Nam từ năm 2010 đến 2016 đồng thời đánh giá ảnh hưởng của ô nhiễm môi trường lên cầu ý tế của các cá nhân trong điều tra khảo sát mức sống hộ gia đình Việt Nam.
  • Newspaper

  • Sự hài lòng với nghề nghiệp của giáo viên phổ thông

    • Authors: Phạm Thị Mai Hương (2021)

  • Bài viết nhằm mục tiêu phác thảo mức độ hài lòng nghề nghiệp của giáo viên phổ thông và vai trò của sự hài lòng với khía cạnh khác nhau trong hoạt động nghề đối với sự hài lòng với nghề nghiệp nói chung.
  • Newspaper

  • Wireless sensor networks: a survey

    • Authors: Akyildiz. I.F (2002)

  • This paper describes the concept of sensor networks which has been made viable by the convergence of micro electro-mechanical systems technology, wireless communications and digital electronics. First, the sensing tasks and the potential sensor networks applications are explored, and a review of factors influencing the design of sensor networks is provided. Then, the communication architecture for sensor networks is outlined, and the algorithms and protocols developed for each layer in the literature are explored. Open research issues for the realization of sensor networks are also discussed. 2002 Published by Elsevier Science B.V
  • Bài báo/Newspaper

  • Extensions and new developments in DEA

    • Authors: W.W. Cooper (1996)

  • The extensions, new developments and new interpretations for DEA covered in this paper include: (1) new measures of efficiency, (2) new models and (3) new ways of implement ing established models with new results and interpretations presented that include treat ments of "congestion", "returns-to-scale" and "mix" and "technical" inefficiencies and measures of efficiency that can be used to reflect all pertinent properties. Previously used models, such as those used to identify "allocative inefficiencies", are extended by means of "assurance region" approaches which are less demanding in their information require ments and underlying assumptions. New opportunities for research are identified in each section of this chapter. Sources of further developments and possible source...
  • Bài báo/Newspaper

  • Bank efficiency derived from the profit function

    • Authors: Allen N. Berger (1993)

  • Both input and output inefficiencies are derived from a profit function for US banks. These inefficiencies are decomposed into allocative and technical components in a new way using shadow prices. About half of all potential variable prolits are estimated to be lost to inefliciency. Most inefficiencies are from deficient output revenues, rather than excessive input costs. Larger banks are found to be more efficient than smaller banks, which may offset scale diseconomies found elsewhere. Tests of a new concept, ‘optimal scope economies’, suggest that joint production is optimal for most banks, but that specialization is optimal for others.