BACKGROUND It is estimated that about 50% of causes of recurrent pregnancy loss (RPL) cases remain unknown. Sperm factors are suggested to have probable role in cases with RPL. OBJECTIVE The goal was to determine the possible relationship between semen bacterial contaminations with unexplained RPL. Also, the correlation between number of bacterial colony and sperm chromatin condensation was e...

A Phase I estimator of the dispersion should be efficient under in-control data and robust against contaminations. Most estimation methods proposed in the literature are either efficient or robust against either sustained shifts or scattered disturbances. In this article, we propose a new estimation method of the dispersion parameter, based on exponentially weighted moving average charting, whi...

This paper presents new optical measurement method for evaluating the defects on a silicon wafer surface quantitatively by detecting the intensity distribution, “ laser scattered defect pattern ( LSDP )“, corresponding to the superposition of scattered light from a defect and reflected light from a surface. In order to verify a feasibility to detect “crystal originated particles ( COPs )” and t...

Mycoplasmas are frequently found as contaminants in tissue-cultured cells. Infections may be inapparent or cause severe cytopathic changes. The source of primary contaminations in most cases is probably the upper respiratory tract of man. The wide dissemination of infections in cultures most probably occurs as a result of aerosols set up during the processing of contaminated cultures. Mycoplasm...