MOMEN AKUMULASI DARI SUATU ANUITAS AWAL DENGAN TINGKAT BUNGA ACAK
This article discusses the three moments formed from the accumulation of due annuity with random interest rate. The highest moment of these three moments is obtained by first determining the previous two moments. Moment accumulation is used to predict the accumulation of profits expected by investors from an investment made during n periods.
Annuities Under Random Rates of Interest II
Some attempts were made to evaluate the future value (FV) of the expected value and the variance for various cash flows (CF). The motivation stemmed from some recursive formulas. This method does not apply directly to the evaluation of present values (PV). One can get some estimates for the PV using results about the FV. We will present a direct approach to evaluate the PV of both factors for some CF. It will turn to be similar to that used to evaluate the FV. Furthermore it makes it possible to study the PV of these CF directly, and may suggest a method to study some other CF as well.
Thrombus formation after aortic valvular replacement using Björk-Shiley valve occluding the right coronary orifice.
We describe a patient with unstable angina due to occlusion of the orifice of the right coronary artery by thrombus formation after aortic valvular replacement using a Björk-Shiley valve. After strict anticoagulant treatment, transesophageal echocardiography demonstrated disappearance of the thrombus formation around the orifice of the right coronary artery.