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Depending on the source of current for the loop, devices may be classified as active (supplying or "sourcing" power) or passive (relying on or "sinking" loop power). For example, a chart recorder may provide loop power to a pressure transmitter.
In vitro, it acts as a potent and balanced serotonin, norepinephrine, and dopamine releasing agent with K i affinity values of 53.4nM, 22.2nM, and 44.1nM at the serotonin, norepinephrine, and dopamine transporters, respectively. [1]
Electric symbol. A constant-current diode is an electronic device that limits current to a maximal specified value for the device. It is known as a current-limiting diode (CLD) or current-regulating diode (CRD).
para-Methoxyamphetamine (PMA), also known as 4-methoxyamphetamine (4-MA), is a designer drug of the amphetamine class with serotonergic effects. [2] [3] [4] Unlike other similar drugs of this family, PMA does not produce stimulant, euphoriant, or entactogen effects, [5] and behaves more like an antidepressant in comparison, [6] though it does have some psychedelic properties.
Addiction experts in psychiatry, chemistry, pharmacology, forensic science, epidemiology, and the police and legal services engaged in delphic analysis regarding 20 popular recreational drugs. 4-MTA was ranked 12th in dependence, 10th in physical harm, and 17th in social harm.
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