Silicone based oil is heated in the boiler of the diffusion pump and the vaporized oil rises in the central tower and streams out of directional flutes directed downward in the pump throat. This allows air molecules to dissolve in the gaseous oil (gas dissolved in gas). As the oil-air mixture cools (due to water cooling coils wrapped around the pump throat) the oil condenses and returns to liqu...

Research was conducted into biological degradation of PVAL modified samples, mixed with starch in an anaerobic environment. The test of biodegradability was performed in an aqueous environment under anaerobic conditions with digested activated sludge from municipal wastewater treatment plant. Evalution of biodegradation was based on methane and carbon dioxide produced in the gas phase and TOC d...

A new percentile-based rating scale P100 has recently been proposed to describe the citation impact in terms of the distribution of the unique citation values. Here I investigate P100 for 5 example datasets, two simple fictitious models and three larger empirical samples. Counterintuitive behavior is demonstrated in the model datasets, pointing to difficulties when the evolution with time of th...

While it is important that applications designed for mobile devices be iteratively tested in natural contexts (e.g., by participants in the field), it is especially difficult both to develop mobile applications and to deploy them in the field. We built a system, MObile Messaging and EvalutioN TOol (Momento), to facilitate early stage development and field testing of mobile applications. Anyone ...

wo reports (1,2) in this issue of the Journal describe the esults of the PROTECT–TIMI-30 (Randomized Trial to valuate the Relative Protection Against Post-Percutaneous oronary Intervention Microvascular Dysfunction, Ischemia, nd Inflammation Among Antiplatelet and Antithrombotic gents–Thrombolysis In Myocardial Infarction-30) study, a andomized trial whose primary outcome was unexpected. esults...

The polyamine (PA) was prepared by condensation of 1,4-bischloromethyl benzene and benzidine. The PA was then treated with cyanuric chloride at 0°C followed by reaction with 5-amino-8-Hydroxyquinoline in THF in conc. NaOH (PH 9-10) at room temperature for 8 hrs. The resultant polymer designated as polyamine-s-triazine-5-amino8-Hydroxyquinoline (PATHQ) was characterized by elemental analysis, IR...