The NERC Science Information Strategy Data Citation and Publication project aims to develop and formalise a method for formally citing and publishing the datasets stored in its environmental data centres. It is believed that this will act as an incentive for scientists, who often invest a great deal of effort in creating datasets, to submit their data to a suitable data repository where it can properly be archived and curated. Data citation and publication will also provide a mechanism for data producers to receive credit for their work, thereby encouraging them to share their data more freely.

Different polyamide water separation films were prepared by interfacial polymerization by using different concentrations of Ethylenediamine (EDA)/H2O and some Trimesoylchloride (TMC)/Toluene on the modified Polyacronitrile (mPAN) substrates. By applying a slow positron beam, depth profiles of relative free volume hole sizes for different films were obtained. It was found that the hole size at the skin polyamide layer was almost identical and much smaller than that in the mPAN substrate layer. The results indicate that the thickness of the polyamide layer is the major factor in controlling the performance of a membrane during water separation.

AbstractOur series Prescribing in children gives practical advice for successful management of childhood problems in general practice. Here, the authors describe the management of type 1 diabetes with insulin and briefly discuss the use of oral hypoglycaemic agents in type 2 diabetes. Copyright © 2009 Wiley Interface Ltd

The change in the energy barriers for the heterogeneous reduction of pyruvate decarboxylase (PDC) relative to its coenzyme, thiamin pyrophosphate (ThPP), was determined experimentally using square wave voltammetry (SWV) to be 5.3 kcal/mol. These results are in agreement with those of reaction rate acceleration provided by thiamin-dependent decarboxylases relative to their coenzyme as determined kinetically based on the pK(a) suppression by the enzyme environment.

Abdominal aortic aneurysm (AAA) is distinctly uncommon in infants and children, and usually results from infection, iatrogenic trauma, vasculitis, connective tissue disorder, or tuberous sclerosis. Congenital "primary" neonatal AAA is exceedingly rare. The few reported cases of repair of congenital AAA describe use of synthetic graft material or aneurysmorrhaphy. We report the first successful treatment of a known 6 cm congenital infrarenal AAA repaired with a 5 mm cryopreserved allograft in a 4-month-old infant girl. The graft was pretreated with an antigen reduction process (SynerGraft), which preliminary studies suggest may inhibit allograft degeneration. The postoperative course was unremarkable. Lower extremity pulses and results of duplex ultrasound flow studies remained excellent at 14-month follow-up. Panel reactive antibodies against class I alloantigens remain negative. The use of an antigen-reduced allograft provides an acceptable conduit, which potentially may decrease allograft degeneration and relative graft stenosis associated with growth of the child, but requires follow-up.