The Manual Flight Skill of Airline Pilots

The manual flight ability of commercial airline pilots has been scrutinized after several aviation disasters in the first decade of the 21st century where pilot error has been a contributing cause. Voluntary pilot incident reports from the National Aeronautics and Space Administration\u27s Aviation Safety Reporting System (ASRS) were examined as one method to determine the prevalence of manual flight skill decline among airline pilots. The investigation studied reports from unstabilized approach to landings where the pilots manually controlled the aircraft during descent. An analysis of the ASRS reports from pilots flying traditional flight deck aircraft compared with pilots flying aircraft with advanced technology flight decks revealed no significant difference in unstabilized approaches. Two additional analyses comparing ASRS reports from regional air carriers versus major air carriers as well as international operations and domestic operations from major air carriers, determined no significant differences in unstabilized approaches. The research indicates that ASRS voluntary incident reports cannot determine significant differences in airline pilot manual flight control between different airline operation types or flight deck technologies

FIRST SUBURBS IN THE NORTHEAST AND MIDWEST: ASSETS, CHALLENGES, AND OPPORTUNITIES

This article examines the decline of first suburbs, the older inner-ring suburbs closest to cities that grew up before or immediately after World War II. As families leave these areas for the expanding outer suburbs, the tax base shrinks and poverty and failing schools result. Inner suburbs lack the sophisticated governmental structures of cities to combat these problems, and without a shift in investment policies, first suburbs will continue to suffer

FIRST SUBURBS IN THE NORTHEAST AND MIDWEST: ASSETS, CHALLENGES, AND OPPORTUNITIES

This article examines the decline of first suburbs, the older inner-ring suburbs closest to cities that grew up before or immediately after World War II. As families leave these areas for the expanding outer suburbs, the tax base shrinks and poverty and failing schools result. Inner suburbs lack the sophisticated governmental structures of cities to combat these problems, and without a shift in investment policies, first suburbs will continue to suffer

Quantum Walk Topology and Spontaneous Parametric Down Conversion

In a recent detailed research program we proposed to study the complex physics of topological phases by an all optical implementation of a discrete-time quantum walk. The main novel ingredient proposed for this study is the use of non-linear parametric amplifiers in the network which could in turn be used to emulate intra-atomic interactions and thus analyze many-body effects in topological phases even when using light as the quantum walker. In this paper, and as a first step towards the implementation of our scheme, we analize the interplay between quantum walk lattice topology and spatial correlations of bi-photons produced by spontaneous parametric down-conversion. We also describe different detection methods suitable for our proposed experimental scheme.Comment: 7 pages, 3 figures. arXiv admin note: substantial text overlap with arXiv:1409.127