hereby we report a patient with thalassemia major having extradural cord compression at t3-t9 levels due to a mass of extramedullary hematopoiesis (emh) tissue, whose treatment was successful with hypertransfusion therapy alone. the patient was a 23-year-old man who had not received regular blood transfusion since two years before admission. he suffered from paraparesis with a history of progre...

Perovskite nanoplatelets possess extremely narrow absorption and emission line widths, which are crucial characteristics for many optical applications. However, their underlying intrinsic extrinsic line-broadening mechanisms poorly understood. Here, we apply multidimensional coherent spectroscopy to determine the homogeneous broadening of colloidal perovskite nanoplatelet ensembles. We demonstr...

Compression neuropathy includes a heterogeneous group of focal neuropathy syndromes related to peripheral nerve compression. Although acute or chronic compression-related injury may occur in essentially any peripheral nerve, certain anatomic considerations may predispose certain nerves to intrinsic or extrinsic compression-related injury. The clinical presentations of specific compression or en...

malian animals, i.e. that of a cat. It was also influenced by the spring-mass model representation [2]. Compliant prismatic legs show an intrinsic robustness for their angle of attack [2], they have a stability region. If the leg design is changed into a two segmented leg with a specific linear torsional spring, the leg stiffness kleg becomes nonlinear (Fig. 2(b) blue line), similar to that of ...

Given a text, grammar-based compression is to construct a grammar that generates the text. There are many kinds of text compression techniques of this type. Each compression scheme is categorized as being either off-line or on-line, according to how a text is processed. One representative tactics for off-line compression is to substitute the longest repeated factors of a text with a production ...