1 The Effect of Ejaculation Frequency on Serum Prostate-Specific Antigen Level.  Objective: Serum prostate-specific antigen (PSA) levels are very important in the diagnosis of prostate cancer. Besides prostate cancer, PSA levels can also be increased by cystoscopy, prostate biopsy, prostatitis, and manipulation. There are also studies reporting that ejaculation affects serum...
A parliamentary system is a system of democratic governance of a state in which the executive branch derives its democratic legitimacy from, and is held accountable to, the legislature (parliament); the executive and legislative branches are thus interconnected.n a presidential system, the executive is often chosen independently from the legislature. If the executive and the majority of the legislature are from different political parties, then stalemate can occur.
In the Presidential system, the President has generally a fixed tenure because it is not easy to impeach him. 5. There is not strict separation of powers in the Parliamentary type. The ministers are also members of the legislature. But, in the Presidential type, the principle of separation of powers is strictly followed.