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.
Generally, the PNP transistor can replace NPN transistors in most electronic circuits, the only difference is the polarities of the voltages, and the directions of the current flow. PNP transistors can also be used as switching devices and an example of a PNP transistor switch is shown below.