International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada / During high performance fighter aircraft manoeuvres, a fighter pilot may be exposed to a physiological phenomenon known as the “Push-Pull Effect” (reference (ref) [1]). This effect will alter the pilot’s homeostasis whereas blood flow to the brain will be increased during low negative normal acceleration (-Gz) and suddenly decreased during positive normal acceleration (+Gz). It has been hypothesized that this effect can lessen the Gtolerance of the human body thereby making the subject more susceptible to G induced Loss of Consciousness (G-LOC) (refs [2], [3] and [4]). G-LOC is not a desirable state for a pilot in a high performance aircraft such as a CF-18. To better understand and study the Push-Pull Effect on a fighter pilot, the Aerospace Engineering Test Establishment (AETE) and the Defence and Civil Institute of Environmental Medicine (DCIEM) produced an In-Flight Research (IFR) Program sponsored by the Canadian Forces (CF). The aim of this program was to measure the physiological response of relaxed test subjects, unprotected by a G-suit, when exposed to the Push-Pull manoeuvre in flight. This IFR would validate the centrifuge data and confirm that the Push-Pull Effect can occur in flight. This paper will present the instrumentation, design, telemetry system and installation methodology utilized to perform experimental physiological research on a high performance, ejection seat equipped fighter aircraft (CF-18). Also, preliminary results on the Push-Pull Effect, obtained through this IFR Program will be presented.

Labor mobility in the rural area of Mainland China plays recently an important role in its economic development process. And this enormous and inexpensive labor attracts foreign investments, including Taiwanese investment, to enter Mainland China¡¦s market, and, further, drives economic development of Asia-Pacific Region. However, from the viewpoint of Rural-Urban Dualism theory, on the social level, rural labors can not take part in political life, and preserve their rights. Thus, they become ¡§Silent Class¡¨ in the Chinese urban society. On the economic level, serious public security problems derivative from labor disputes and conflicts, and it attracts highly concerns of Central of Chinese Communist Party (CCP), and issues ¡§Constructing Harmonious Community and Well-Off Society¡¨; and on the social level, continued expanding poverty gap, social rejection, and prejudice cause deep impact on those labors. This studying focus on the changing steps of supply and demand of rural labor, in order to discuss the developmental trend of transferring process of rural labor form past to present, even to the future. Therefore, this essay concentrates on the changing mobility of rural labor in some aspects, for example regions, identifications, careers, and life forms, and political, social economic, cultural, policy/urbanization, and market/occupation connections between rural and urban area. The Result of studying is, Central of CCP has 3 ways to solve problems beneath the surface of rural labor and urbanization: 1. Accelerating transferring process of rural surplus labor with economic development strategy; 2. Upgrading skill standard of rural labor, to guarantee employment; 3. Promoting and enlarging domestic consume, to constrain inflation. At the same time, the capability of labor unions should be reinforced and the organized degree of rural labor should be improved. Hoping that, they are able to play a more active role to protect rights of rural labors.