A platform might have the potential to bring enormous value its users. However, without a well-orchestrated launch strategy that coordinates sufficient number of users onto platform, this will not be realized. The theoretical literature predicts one approach coordinating take-off is influence market’s subjective focal expectations future installed base This paper reports on field experiment inv...

The process of deregulating airlines in the United States began in earnest with the passage of the Airline Deregulation Act of 1978. The Act set in place a timetable for removing government controls on fares and entry into routes. However, airline access to airports has not been fully deregulated. In 1968, the Federal Aviation Administration (FAA) adopted the socalled "high-density rule" to com...

BACKGROUND The clinical relevance of exercise-induced pulmonary arterial hypertension (PAH) is uncertain, and its existence has never been well studied by direct measurements of central hemodynamics. Using invasive cardiopulmonary exercise testing, we hypothesized that exercise-induced PAH represents a symptomatic stage of PAH, physiologically intermediate between resting pulmonary arterial hyp...

Triple jumpers employ either an asymmetrical 'single-arm' action or symmetrical 'double-arm' action in the takeoff of each phase of the jump. This study investigated which technique is more beneficial in each phase using computer simulation. Kinematic data were obtained from an entire triple jump using a Vicon automatic motion capture system. A planar 13-segment torque-driven subject-specific c...

Abstract This article examines, based on the available information and authors’ self-assessments, environmental impact of turbine engine exhaust gases effect environment in airport space during engines flight phases landing takeoff cycle (LTO). The attention aviation professionals is drawn to fact that amount from so significant it may adversely change ambient air at airport. Consequently, incr...