The behaviors of the two SC morphologies are completely distinct. A 2D order crystalline morphology evolves with stretching likewise the QA through three stages: (i) at early stages of deformation the polymer orientation remains unchanged while the amorphous phase amount increases slightly, stage I; (ii) in stage II, a fast increase of polymer orientation is accompanied by large
formation of mesophase; and (iii) in stage III there is the level off of polymer orientation as the chains approach their finite extensibility and the 3D crystalline order is achieved. Evolution of SC sample with 3D crystalline order mainly features constant orientation increase together with mesophase increment. Structure deformation models are suggested. SBI-0206965 VX770 (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012″
“Coupled quantum dots are of great interest for the application of quantum computing. The aspect needing attention is the preparation of well-defined quantum dots with small sizes and interdot distances. We propose a novel electrostatics method to form silicon double quantum dots. Three-dimensional numerical simulations were used to confirm the concept and study the mechanism controlling the tunnel barrier using
the side gates. We estimate the electron number in each quantum dot to be less than five electrons. The prospect in creating ultrasmall quantum dots that operate at the few-electron regime, as well as exhibit processing simplicity is the great advantage of this method over those previously reported. (C) 2011 American Institute of Physics. [doi:10.1063/1.3627238]“
“Severe atrophy of the edentulous maxilla and progressive pneumatisation of the maxillary Sinus can compromise the insertion of dental implants. in this context, ideal implant positioning is limited by inadequate height, width, and quality of the bone. Le Fort I osteotomy and interpositional bone graft is an excellent treatment concept for the dental rehabilitation
of patients with atrophied maxilla and reversed intermaxillary relationship. In this report, we indicate the transcendent aspect of elevation and preservation of maxillary sinus and nasal mucosa, modifying the selleck kinase inhibitor sandwich technique by the useful Of bone scrapers and piezosurgery. The procedure is described including a I-stage approach using cortico-cancellous bone blocks through which implants are placed. In the extremely atrophied alveolar process of the maxilla, this technique provides the desired gain of bone, allows for the ideal placement of dental implants, and improves any discrepancy between the upper and lower arches. (C) 2009 American Association of Oral and Maxillofacial Surgeons”
“Background: We aimed at estimating pneumococcal serotype-specific disease potential in pediatric community-acquired alveolar pneumonia (CAAP), by comparing nasopharyngeal pneumococcal carriage during disease to carriage in healthy children.