Threading edge segments are inclined by about 20 degrees from the c-axis toward the down-step direction. It is concluded that the critical and limiting step of the dislocation conversion process is constriction of the dissociated partials. Growth surface morphology at the emergence point of the basal plane dislocation
was imaged using SEM and Quizartinib purchase is thought to play an important role in the constriction. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3579447]“
“Head-up tilt test (HUT) is frequently used for diagnosis of neurocardiogenic syncope. It mimics orthostatic stress resulting in venous pooling, central hypovolemia with compensated left ventricular hypercontraction, and sympathetic stimulation. Although generally considered to be a safe Selleck LDK378 procedure, we hereby present a rare complication of HUT in a 50-year-old woman with isoproterenol infusion inducing coronary spasm that resulted in ventricular tachycardia. (PACE 2011; 34:e109e111)”
“Background. Oral focal mucinosis (OFM) and cervical external root resorption are both rare lesions with an unknown etiology. In this article we report
on a rare occurrence of OFM associated with cervical external root resorption.
Methods. A 44-year-old female patient presented with sharp pain while drinking cold beverages and a firm localized gingival overgrowth adjacent to the buccal aspect of tooth #19. An excisional biopsy of the gingival lesion was taken and a deep cavity was found in the buccal aspect of the root. The cavity was restored with an amalgam filling.
Results. The histological findings were
of a well-circumscribed lesion composed of myxomatous connective tissue, which contained numerous AC220 chemical structure stellate-shaped fibroblasts. Based on the findings, a diagnosis of OFM was made.
Conclusion. A rare case of OFM and cervical external root resorption occurring in the same site was described. A possible link between these 2 phenomena was hypothesized. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2010;110:e75-e78)”
“The influence of a novel 1,2,4-linking hyperbranched poly(arylenevinylene) (1,2,4-hb-PAV) material, designed to feature intramolecular energy-funneling, on the transport and emission properties of organic light emitting diodes (OLEDs) has been studied. A comparison to conventional hyperbranched 1,3,5-linking polymers (1,3,5-hb-PAV), which do not exhibit this effect, has been made. For this purpose, single-layer organic light emitting diodes with a glass/indium-tin oxide/poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate)/active layer/Ca/Al structure and different active layer thicknesses have been fabricated and characterized, using either 1,2,4-hb-PAV or 1,3,5-hb-PAV as active layers. The current-voltage response has been interpreted in terms of a numerical model that includes a field-dependent carrier mobility, which allows us to estimate carrier mobility in the diodes.