tac (time to amplitude convertor) is one of the most important time measurement instrumentswhich has great significance in many fields of science, especially radiation physics. a tac unit has beendesigned based on the start-stop analog method and nim (nuclear instrument modules) standards. afterdesigning the circuit, it was simulated by pspice software and constructed by discrete and integrated...

Background: The aim of the present study is to compare time perception among drug addicts and controls. Methods: 30 drug addicts were selected, and 30 non-addict individuals were selected as the control group. The two groups performed three tests of time reproduction, time estimation, and time discrimination. Findings: There was a significant difference between the addicts group and the control...

The human brain is a complex system consist of connected nerve cells that adapts with and learn from the environment by changing its regional activities. Synchrony between these regional activities called functional network changes during the life, and with learning of new skills. Time perception and interval discrimination are among the most necessary skills for the human being to perceive mot...

This paper analyzes how discrimination by gender in Chile evolved over the period 1958-1996. The paper takes advantage of a series of household surveys that cover an unusually long time series for a developing country. This provides a valuable picture of trends in discrimination over a period that exhibited diverse economic conditions and policies. The study is based on the basic model for the ...