Four groups of rat pups were studied: AR-13324 two sham manipulated normoxia groups and two acute hypoxia groups

(at postnatal day [P] 10 down to 4% O(2)), each injected intraperitoneally daily with either vehicle or TPM (30 mg/kg) from P0 to P21. TPM therapy prevented hypoxia-induced long-term (P81) memory impairment (Morris water maze) as well as aggressivity (handling test). The hypoxia group receiving TPM also showed a trend toward reduced CA1 hippocampal cell loss. The aforementioned TPM therapy had no long-term deleterious effects on memory, hyperactivity, or CM cell counts in the TPM normoxia group as compared with normal controls. (C) 2010 Elsevier Inc. All rights reserved.”
“As electrofusion (EF) technology is widely used in connecting polyethylene (PE) pipes and other plastic pipes or composite pipes, research in safety assessment of EF joints has been of major concern. EF joints with defects are very common in practical applications. These defects may greatly reduce the mechanical MI-503 nmr performance of the EF joints and threat safety running of the pipeline system. To evaluate hazard

of these defects and provide a basic understanding for the failure mechanism of EF joints, a comprehensive study on defects and failure modes is conducted in this work. The defects in EF joints are classified into four categories: poor fusion interface, over welding, voids, and structural deformity. The forming reasons of these defects are analyzed in detail. The mechanical properties of EF joint containing these defects are investigated by conducting peeling tests and sustained hydraulic pressure tests. Test results show that there are three main failure mode of EF joint under inner pressure, that is, cracking through

the fusion interface, cracking find more through the fitting, and cracking through copper wire interface. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012″
“The phenomenon of atomic motion between the nanoparticle and its substrate was examined in constructing perpendicularly aligned FePt nanoparticle structures. Samples of iron-rich FePt nanoparticles synthesized by vapor phase or liquid phase synthesis techniques were deposited on a platinum-(001) buffer layer and annealed in a hydrogen atmosphere. Superconductive quantum interference device and x ray diffraction measurements for the in-plane and out-of-plane direction exhibited perpendicularly oriented magnetization and an L1(0) ordered phase with a perpendicular easy axis orientation. The coercivity was measured as approximately 4.3 kOe. In addition, high angle annular dark field-scanning transmission electron microscopy showed FePt alloy formation normal to the sample surface. The atomic distribution data showed iron diffusion into the platinum layer. These results might open a new path toward ultrahigh density storage media from chemically synthesized FePt nanoparticles. (C) 2011 American Institute of Physics. [doi:10.1063/1.