According to the Diagnostic and Statistical Manual of Mental Disorders, fourth edition, text revision (DSM-IV-TR; American Psychiatric Association [APA], 2000), the central feature of separation anxiety disorder (SAD) is unrealistic and excessive anxiety
In order to prove the formation and the air-tightness of the liquid membrane, the permeance of N2(maintained at 95% RH) through the membrane (prepared as described above) was measured using a bubble flow rate meter for a 1 atm pressure difference. The permeance of N2through the membrane ...