Cleveland TS23 4YS. Guiding principles for the proof testing of safety instrumented systems (SIS) in the chemical industry. have been developed through research into the practices of proof testing. The proof testing of SIS is an. integral component of the management of functional safety. Its purpose is to confirm the continued.
Psychology of obsession. The definition of obsession is: the inability of a person to stop thinking about a particular topic or feeling a certain emotion without a high amount of anxiety. When obsessed, an individual continues the obsession in order to avoid the consequent anxiety.
There have been several factors that have been pointed out as causes of obsessions. Some of these are stress, brain dysfunctions, brain chemicals, and habitual behavior. The following set of sections are probable points on what causes obsessions. slide 2 of 7. Stress has been considered as a factor in obsession and OCD. Stress can make a person vulnerable to fear, anxiety, and obsession.