Spin-orbit torque driven magnetization switching in W/CoFeB/MgO-based type-Y three terminal magnetic tunnel junctions.

We have studied current induced magnetization switching in W/CoFeB/MgO based three terminal magnetic tunnel junctions. The switching driven by spin-orbit torque (SOT) is evaluated in the so-called type-Y structure, in which the magnetic easy-axis of the CoFeB layer lies in the film plane and is orthogonal to the current flow. The effective spin Hall angle estimated from the bias field dependence of critical current (I) is ~ 0.

Modified partial maxillary swing approach for myxofibrosarcoma in pterygopalatine fossa.

Background: Extirpation of tumors arising in the pterygopalatine fossa is challenging because of its anatomic complexity.

Methods And Results: A 67-year-old man was referred to our department with a diagnosis of a tumor in his left pterygoid fossa. An incisional biopsy through the canine fossa was diagnosed as myxofibrosarcoma.

Symptomatic cerebellar hemorrhage from recurrent hemangioblastoma during delivery. Case report.

A 30-year-old woman suffered cerebellar hemorrhage during the delivery of her first child. She had undergone surgical removal of a symptomatic cerebellar hemangioblastoma 6 years previously. Neuroradiological examinations indicated recurrent hemangioblastoma, confirmed by histological examination of the surgical specimen.