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Peptic ulcer disease is commonly complicated by perforation. Mortality and morbidity arising out of these perforations can be high. Factors that influence outcome in patients with peptic ulcer perforation include treatment delay, ASA class of the patient at the time of operation and presence of shock. Of these treatment delay is most important and modifiable. This book reviews delay and how it affected outcome in patients treated for perforated peptic ulcers at the Kenyatta National Hospital, Nairobi, Kenya. In this book Patients files for the period January 2002 to December 2008 were...

This book is devoted to studying the intercalation phase of Montmorillonite nano clay modification and the ions interacting dynamics within the interlayer gallery space of lamellar minerals. This goal is reached in two main steps, firstly we explore qualitatively the nano world of ions and their interactions by combining ideas and results from the three following fields: ionic and molecular chemistry, non relativistic quantum mechanics at nano scale, and classical electromagnetism. Then we construct a toy model using electric dipoles to make some rough theoretical predictions and numerical...