James Buchanan was born on April 23, 1791, in Cove Gap, Pennsylvania, to James Buchanan Sr. (1761-1833), a merchant who had emigrated from Ireland, and Elizabeth Speer Buchanan (1767-1833). The younger Buchanan graduated from Dickinson College in Carlisle, Pennsylvania, and then studied law.ames Buchanan in the White House. Once in office, James Buchanan appointed a cabinet composed of Northerners and Southerners and hoped to keep peace between the countryâs pro-slavery and anti-slavery factions.
References. 1  McFee, RB et al. Dying to be thin: a dinitrophenol related fatality. 2  Grundlingh, J et al. 2,4-dinitrophenol (DNP): a weight loss agent with significant acute toxicity and risk of death. 3  Tainter, ML et al. Use of dinitrophenol in obesity and related conditions. 4  Kurt, TL et al.
pnp in Technology Expand. 1. A type of bipolar transistor consisting of a layer of N-doped semiconductor (the base) between two P-doped layers (the collector and emitter). PNP transistors are commonly operated with the emitter at ground and the collector at a negative voltage. In the 1960s, the germanium PNP transistor was the cheapest and best for use at ordinary temperatures. The leakage current from collector to base in this type of device is larger than for the silicon transistor, and also varies more with temperature.