play an important role here, as in many other aspects of everyday life. In medicine, amulets were used to gain longevity, cure certain problems (e.g., madness, alcoholism, leprosy, headache, and bedwetting), ward off epidemics, guarantee fertility or sterility, and bring pregnancy to a safe conclusion; in other areas, they served to protect against weapons, cancel the effects of other amulets, ...

Pulmonary Langerhans cell histiocytosis (LCH) is a rare disease. The typical findings on chest computed tomography (CT) of this disease are multiple bizarre cystic spaces associated with small peribronchiolar nodules, predominantly in the upper third of both lungs. The peribronchiolar nodules are not always present due to the evolution sequence. For patients with histiologically proven extrapul...

We here present the antenatal magnetic resonance imaging (MRI) findings of mesoblastic nephroma in a fetus. A profitable design using single-shot fast spin echo (SSFSE) MRI sequence was applied for recognition of the abdominal mass with renal origin in the mobile fetus. SSFSE could significantly shorten the scanning time, therefore we got satisfactory images without fetal sedation. The image fi...

URSULA WEISSER (editor), "Buch uiber Geheimnis der Schopfung und die Darstellung der Natur" von Pseudo-Apollonios von Tyana, Aleppo, Institute for the History of Arabic Science, 1979, 4to, pp. xiii, 66, 702, $15.00 (paperback). This book is an Arabic edition of an alchemical work, Sirr al-khalFqa (Secret of creation), also known by the title Kitab al-'ilal (Book of causes). It begins with a Pre...

EMERGING memory technologies have demonstrated a great potential on improving many aspects of presentday and future memory hierarchy, offering high integration density, large capacity, close-to-zero standby power, and good resilience to soft errors. The recent tremendous investments from academia and industry made substantial technology progress of various emerging memories, i.e., phase change ...

Intramedullary epidermoid cysts of the spinal cord are rare tumors. They are slow-growing tumors. We report a case of a 74-year-old patient presenting with thoracic spinal cord compression syndrome (T11-12). The magnetic resonance imaging (MRI) showed an intramedullary cystic mass. It demonstrated low signal intensity on T1and high signal intensity on T2-weighted images, with minimal peripheral...

Aneurysm of sinus of Valsalva is a rare anomaly which can be congenital or acquired. The right coronary sinus is the commonest site of aneurysm formation, with only a few cases reported to arise from the left coronary sinus. Although most patients with unruptured aneurysm of sinus of Valsalva are asymptomatic, fatal complications of unruptured aneurysms of sinus of Valsalva have been reported. ...

In most inventory models it is assumed that the parameters of the model do not vary with time, and that the payment of orders from the retailer to the supplier is made immediately up on the receipt of these orders. Some suppliers, however, allow a certain fixed period to settle payment accounts. During this fixed period no interest is charged by the supplier, but beyond that period an interest,...