the thermo-oxidative degradation of two viscous liquid resins of 1,2- poly-butadiene  (1,2-pbd) and 1,4- polybutadiene  (1,4-pbd) have been studied by differential scanning calorimetry (dsc) and thermogravimetry analy-sis  (tga). to  study  further,  the  effect of flm  thickness on oxidation kinetics was periodically studied by tracing the weight of the samples to make comparison with dsc resu...

in this research, the microstructural of low molecular weight 1,2-polybutadiene (1,2-pbd) was conducted by 1h and 13c nuclear magnetic resonance spectroscopy (nmr) to determine the isomeric contents of 1,4-cis, 1,4-trans and 1,2-vinyl in 1,2-pbd polymer structures. number average molecular weight for low molecular weight 1,2-pbd was measured by nmr techniques and the results were compared with ...

In this work, a thermal molding technique is proposed for the fabrication of plastic electronics on curved surfaces, enabling the preparation of plastic films with freely designed shapes. The induced strain distribution observed in poly(ethylene naphthalate) films when planar sheets were deformed into hemispherical surfaces clearly indicated that natural thermal contraction played an important ...

1 Ahmed Emam, MRCS Khurram Khan, FRCS Elena Prousskaia, FRCS, EBOPRAS Department of Plastic Surgery Southmead Hospital Northbristol NHS Trust Bristol, United Kingdom Sir: B reconstruction with autologous free tissue transfer is a widely established technique considered to be the “gold standard.”1,2 The leading cause of return to theater after deep inferior epigastric flap reconstruction is hema...

AIMS To evaluate a vision-related quality of life (QOL) scale (World Health Organization Prevention of Blindness and Deafness Visual Function 20-WHO/PBD VF20) and explore the impact of cataract visual impairment on vision- and health-related QOL in people >or=50 years from Satkhira district, Bangladesh. METHOD 217 cases visually impaired from cataract and 280 controls with normal vision were ...

The preoperative management of hilar cholangiocarcinoma (HC) with jaundice focuses on decreasing the total serum bilirubin level (SBL) by performing preoperative biliary drainage (PBD). However, it takes about 6-8 weeks for the SBL to fall at a sufficient extent. The objective of this preliminary study was to evaluate the impact of Molecular Adsorbent Recirculating System (MARS(®)) dialysis (in...

Zellweger syndrome and related disorders represent a group of lethal, genetically heterogeneous diseases. These peroxisome biogenesis disorders (PBDs) are characterized by defective peroxisomal matrix protein import and comprise at least 10 complementation groups. The genes defective in seven of these groups and more than 90% of PBD patients are now known. Here we examine the distribution of pe...

The annual American Society of Plastic Surgeons’ “Plastic Surgery: The Meeting” is always filled with great educational events and endeavors, and the 2015 gathering in Boston was truly exceptional. Perhaps the most memorable and most rewarding panel that we had the honor and pleasure to be a part of was the Medical Student Session, moderated by one of the first Plastic and Reconstructive Surger...

SLEEP DISTURBANCE HAS BEEN INCORPORATED AS AN INCLUSION CRITERION OF AFFECTIVE DISORDER AND IS CLEARLY A DEFINING FEATURE OF BIPOLAR depression.1 However, current understanding of the relationship between mood and sleep remains quite limited, particularly in the pediatric population.2 In the present study we examine the prevalence and associated sleep characteristics of children with a bipolar ...