study on using a local clay in treatment of aqueous oil spill

Aswan clay which is used in ceramic and cement industries in Egypt, its untreated as well as its thermally and chemically treated forms were employed in studying the sorption of petroleum oil from oil contaminated water at different conditions, such as pH, temperature, loading weight and some anions and cations concentrations. Thermal and chemical treatments were studied to demonstrate the role of non-crystalline and crystalline oxide contaminants on the oil adsorption efficiency

Percutaneous core needle biopsy in the diagnosis of mediastinal tumors

The aim of the present study was to evaluate the contribution of percutaneous core cutting needle biopsy [PCNB] in the diagnosis of mediastinal tumors. Thirty patients [25 men and 5 women] between the ages of 10-70 years underwent CT guided PCNB. The results showed that of these 30 patients, 27 were diagnosed correctly by PCNB; whereas, 3 were misdiagnosed as nonspecific inflammation providing an overall sensitivity of 90%. Most of the patients had various types of lymphomas including non-Hodgkin lymphoma and Hodgkin lymphoma. Nine patients had bronchogenic carcinoma. Two patients had metastatic carcinoma. Two patients had neurofibroma. Two patients had thymoma and one patient had plasma cell tumor. Pneumothorax was the most commonly encountered complication