The structure of the products were characterized by FTIR and C-13-NMR. The particle size, solution viscosity, thermal and mechanical properties were measured by photon correlation spectroscopy (PCS), rotational rheometer, differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), dynamic mechanical analysis (DMA) and tensile tests, respectively. It was found that the
particles size mainly depended on the molar ratio selleck compound of nNCO/nOH and the content of hydrophilic groups; the HBWPUs showed lower viscosity but higher T-g compared with linear waterborne polyurethane. The tensile testing, DMA measurements and rehological measurements revealed that the molar ratio of [B-3]/[A(2)] had significant influence on the viscosity and tensile strength. With increasing the molar ratio of [B-3]/[A(2)], both the viscosity and the tensile strength decreased. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 116: 817-824, 2010″
“The development of Next Generation Sequencing technologies, capable of sequencing hundreds of millions of short reads (25-70 bp each) in a single run, is
opening the door to population genomic studies of non-model species. In this paper we present SHRiMP-the SHort Read Mapping Package: a set of algorithms and methods to map short reads to a genome, even in the presence of selleck chemicals llc a large amount of polymorphism. Our method is based upon a fast read mapping technique, separate thorough alignment methods for regular letter-space as well as AB SOLiD (color-space) reads, and a statistical model for false positive hits. We use SHRiMP to map reads from a newly sequenced Ciona savignyi individual to the reference genome. We demonstrate that SHRiMP can
accurately map reads to this highly polymorphic genome, while confirming high heterozygosity of C. savignyi AR-13324 in this second individual. SHRiMP is freely available at http://compbio.cs.toronto.edu/shrimp.”
“Infantile fibrosarcoma is a rare soft tissue tumor that usually presents either at birth or in the 1st year of life. Here we describe a case of a 4-month-old female who presented with a congenital right axillary mass. The initial clinical impression was benign vascular/lymphatic malformation. The core biopsy showed a spindle cell lesion with abundant vasculature represented by small vascular channels. However, immunohistochemical analysis did not support a diagnosis of vascular lesion/tumor. Polymerase chain reaction study for ETS Translocation Variant 6/neurotrophic tyrosine kinase receptor, type 3 fusion transcript was positive, and the diagnosis of infantile fibrosarcoma was established. The patient underwent resection of the axillary mass. Microscopic examination of the resection specimen showed numerous vascular channels. Intermixed there were also cellular areas composed of spindle cells similar to those seen in the biopsy material. Molecular studies were repeated and confirmed the diagnosis of infantile fibrosarcoma.