The subjects of special functions of single complex variable and several complex variables have a great situation in almost all disciplines Mathematics, Physics and Engineering. The present work is devoted to study these subjects and is considered one of several theses, which were presented and are still presenting by the school established by Sayyed in one of the branches of complex analysis. This thesis is divided into six main chapters. The main aim of Chapter 1 is to define a new family of special functions, say, $p$-Bessel function of one complex variable. The aim of Chapter 2 is to...

Obstetrics deals with the care of women's reproductive tracts and their children during pregnancy, childbirth and the postnatal period. This is the first edition of this simplified Obstetrics textbook. It introduces basic knowledge for undergraduate students, and will also be of value to general practitioners, women's health specialists, family planning doctors, midwives and nurses. In the first edition, there is a sufficient coverage on the key topics related to obstetrics and has been updated to include advances in prenatal screening, fetal anomalies, fetal therapy, and obstetric surgical...