Background There are still many questions about the ideal protocol for letrozole (LTZ) as the commonest aromatase inhibitor (AI) used in ovulation induction. The aim of this study is to compare the ultrasonographic and hormonal characteristics of two different initiation times of LTZ in clomiphene citrate (CC) failure patients and to study androgen dynamics during the cycle. MaterialsAndMethods...

The occurrence of cycle slips is a major limiting factor for achievement of sub-decimeter accuracy in positioning with GPS (Global Positioning System). In the past, several authors introduced a method based on different combinations of GPS data together with Kalman filter to solve the problem of the cycle slips. In this paper the same philosophy is used but with discrete wavelet transforms. For...

progesterone hypersensitivity (ph) is a rare clinical condition that  displays hypersensitivity to  endogenous  or  exogenous progesterone.  it  is characterized by cyclic dermatologic manifestations at the end of the luteal phase that disappear some days after menses. we present  a  case of  24-year-old woman  showing severe angioedema attacks occurring from the first day of her menstruation a...

this paper tests the importance of real shocks as sources of fluctuations in iran’s economy. for this purpose, based on the work of boschen and mills, a set of non-monetary variables which can affect economic growth have been selected and by using an illustrative business cycle model in which the production depends on the past and current value of real shocks, the influence 01’ these variables ...

In this research accumulative roll bonding process as sever plastic deformation process was applied up to 8 cycles to produce the ultrafine grain copper. Microstructure of cycle 1, cycle 4 and cycle 8 investigated by TEM images. By analyzing TEM images the grain size measured below 100 nm in cycle 8 and it was with an average grain size of 200 nm. Corrosion resistance of rolled copper stri...