Search

Summary A method of collection and dissection of mosquitoes, particularly Aedes polynesiensis in Tahiti, is described. This “Intensive Survey Method” provides a distributed sample of mosquitoes for dissection, while simultaneously the following indications of mosquito densities can be determined: (1) the number of mosquitoes captured per minute of capture effort; (2) the percentage of habitations at which mosquitoes were captured; (3) the percentage of houses where 10 or more mosquitoes were captured during the 10-minute capture interval. By dissection and examination of these randomly collected samples of mosquitoes, the percentages of mosquitoes with developing and/or infective larvae of Wuchereria bancrofti are determined. In addition, the number of developing W. bancrofti larvae per dissected mosquito can be calculated as well as the percentage of houses with positive mosquitoes. The interpretation of the data obtained is discussed briefly along with the advantages and disadvanrage of this method.

*INRA, Unité de Génétique et d'Amélioration des Plantes, 78026 Versailles Cedex Diffusion du document : INRA, Unité de Génétique et d'Amélioration des Plantes, 78026 Versailles Cedex Diplôme : DEA

Rockets or launch vehicles, though sharing the same technology, have both military and civil applications: they can be used as missiles or as 'ordinary' transportation vehicles. As a consequence, national security and foreign policy considerations stand in the way of the international launch industry becoming a normal service industry subject to free trade (GATS) principles. This dissertation discusses this conflict between national security and trade interests and the way it affects the United States launch trade relations with China, Russia and Europe. It also analyzes the extent to which the respective U.S. laws, policies and practices, in particular those relating to the export of satellites and launchers, restrict the development of these and other countries' commercial launch activities, and it reviews the prospects for a - GATS or space law-based - liberalization of the international trade in launch services.