In DC circuits and pulsed circuits, current and voltage reversal are affected by the damping of the system. Voltage reversal is encountered in RLC circuits that are under-damped. The current and voltage reverse direction, forming a harmonic oscillator between the inductance and capacitance. The current and voltage will tend to oscillate and may reverse direction several times, with each peak being lower than the previous, until the system reaches an equilibrium. This is often referred to as ringing. In comparison, critically damped or over-damped systems usually do not experience a voltage reversal. Reversal is also encountered in AC circuits, where the peak current will be equal in each direction.
What is formed between the inductance and the capacitance when the current and the voltage switch direction?
a harmonic oscillator

The Directorate of Operations is responsible for collecting foreign intelligence, mainly from clandestine HUMINT sources, and covert action. The name reflects its role as the coordinator of human intelligence activities among other elements of the wider U.S. intelligence community with their own HUMINT operations. This Directorate was created in an attempt to end years of rivalry over influence, philosophy and budget between the United States Department of Defense (DOD) and the CIA. In spite of this, the Department of Defense recently organized its own global clandestine intelligence service, the Defense Clandestine Service (DCS), under the Defense Intelligence Agency (DIA).
What intelligence service did the Department of Defense recently create?
the Defense Clandestine Service

The words of the comic playwright P. Terentius Afer reverberated across the Roman world of the mid-2nd century BCE and beyond. Terence, an African and a former slave, was well placed to preach the message of universalism, of the essential unity of the human race, that had come down in philosophical form from the Greeks, but needed the pragmatic muscles of Rome in order to become a practical reality. The influence of Terence's felicitous phrase on Roman thinking about human rights can hardly be overestimated. Two hundred years later Seneca ended his seminal exposition of the unity of humankind with a clarion-call:
What author had a great impact in Rome?
P. Terentius Afer