The Railroads and Human Safety

Railroads and American Law

Railroads and American Economic Growth : A

This paper examines the historical impact of railroads on the American economy, with a focus on quantifying the aggregate impact in the agricultural sector in 1890. Expansion of the railroad network may have affected all counties directly or indirectly — an econometric challenge that arises in many empirical settings. However, the total impact on each county is captured by changes in that count...

The Economic Impact of the Railroads

Safety Assessment of cryIAc for human, animals and environment

Risk assessment of a transgene is one of the key steps in genetic transformation. Hence, in order to use cryIAc gene for production of transgenic plants, a library and in-silico research was performed to confirm safety of the gene for human comsumption, animal feed and environment. In the first step, the molecular mechanism of action of the CryIAc protein and its specific receptors in the midgu...

Zigzags, Railroads, and Knots in Fullerenes

Two connections between fullerene structures and alternating knots are established. Knots may appear in two ways: from zigzags, i.e., circuits (possibly self-intersecting) of edges running alternately left and right at successive vertices, and from railroads, i.e., circuits (possibly self-intersecting) of edge-sharing hexagonal faces, such that the shared edges occur in opposite pairs. A z-knot...