Wondering if the post office is open on Labor Day, and if the letter carrier will deliver the mail on Monday? Although most retail stores and restaurants will be open on September 7, the U.S. Postal Service will be closed. According to the U.S. Office of Personnel Management, the federal holiday is observed on Monday, and most government offices, including the USPS, will be closed all day.
The organophosphate nerve agents tabun (GA), sarin (GB), soman (GD), and cyclosarin (GF) are among the most toxic chemical warfare agents known. Together they comprise the G-series nerve agents, thus named because German scientists first synthesized them, beginning with GA in 1936. GB was discovered next in 1938, followed by GD in 1944 and finally the more obscure GF in 1949. The only other known nerve agent, O-ethyl S-(2-diisopropylaminoethyl) methylphosphonothioate (VX), is discussed in a separate article of this journal (see CBRNE-Nerve Agents, V-series-Ve, Vg, Vm, Vx). G-series nerve agents share a number of common physical and chemical properties. At room temperature, the G-series nerve agents are volatile liquids, making them a serious risk for 2 types of exposure: dermal contact with liquid nerve agent or inhalation of nerve agent vapor.
Effexor (generic name: venlafaxine) is a popular antidepressant that increases serotonin and noradrenaline. It is mostly used for depression and anxiety disorders. As with most antidepressants, it can sometimes take several weeks for the desired effects of Effexor to be obtained.