The changes in PZT properties (dielectric constant ABT-737 ic50 and resistance) can be described using well known nucleation and growth equations. It is therefore hypothesized that a new structure forms in PZT upon exposure to hydrogen. Protons are expected to be constituents of this new structure, and the changes of the electrical properties can be attributed to their presence. The growth of the new structure appears to be limited by the diffusion of protons into PZT, and the activation energy for the diffusion of protons is calculated at about 0.442 +/- 0.1 eV. (C) 2011 American Institute of Physics. [doi:10.1063/1.3592295]“
“Despite recent improvements in detection

and treatment, prostate cancer continues to be the most common malignancy and the second leading cause of cancer-related mortality. Thus, although survival rate continues

to improve, prostate cancer remains a compelling medical health problem. The major goal of prostate cancer imaging in the next decade will be more accurate disease characterization through the buy CHIR-99021 synthesis of anatomic, functional, and molecular imaging information in order to plan the most appropriate therapeutic strategy. No consensus exists regarding the use of imaging for evaluating primary prostate cancer. However, conventional and functional imaging are expanding their role in detection and local staging and, moreover, functional imaging is becoming of great importance in oncologic management and monitoring of therapy response. This review presents a multidisciplinary perspective on the role of conventional and functional imaging methods in prostate cancer staging. Copyright (C) 2012 S.

Karger AG, Basel”
“A case of herpes zoster infection with unusual oral complications involving the mandibular division of the trigeminal nerve is presented. The post-herpetic complications of osteonecrosis, spontaneous exfoliation of teeth, and subsequent pathologic fracture of mandible in the absence of concurrent predisposing factors in a 65-year-old man are demonstrated. Forty-one cases with osteonecrosis and spontaneous exfoliation of teeth previously presented in the literature are reviewed. This is the first report of pathologic fracture after herpes zoster infection. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2010;110:e37-e41)”
“The periodic electrostatic force of dielectric find more barrier discharge (DBD) in nitrogen for flow control is investigated by a system of physics-based, two-dimensional model equations. The plasma generation process of DBD is mainly the avalanche growth of electrons through the secondary emission from cathode. Therefore, the charged particle motion of a succession of random micro discharges can be approximated by the drift-diffusion model. The force of DBD generated by charge separation and accumulation over the dielectrics is obtained by solving the model equations with the rigorous media interface boundary condition of Maxwell equations in the time domain.