Here we report on the effect of the mass transfer rate (k(t)) on the oxygen reduction reaction (ORR) catalyzed by Pt dendrimer-encapsulated nanoparticles (DENs) comprised of 147 and 55 atoms (Pt(147) and Pt(55)). The experiments were carried out using a dual-electrode microelectrochemical device, which enables the study of the ORR under high k(t) conditions with simultaneous detection of H(2)O(...

Each of two parties P I and P 2 holds an n -bit input, x and y, respectively. They wish to privately compute the value off (x 'Y). That is, PI should not learn any additiorlal infonnation about y (in the infonnationtheoretic sense) other than what follows from its input x and the function value, f (x 'Y), and similarly, P 2 ~hou1d not learn any additional infonnation about x . In this paper we ...

ion levels, called reusable assets, these elements have to be stored in an adequate repository [4,5]. The supported abstraction levels are requirements level, design level and implementation level. Around the a reuse model has been defined, which is articulated over three edges, the technical model, the process model and the qualification model. The technical reuse model presents a duality comp...

Value-added Tax versus Social Security Contributions In order to alleviate unemployment it is often recommended to reduce social security contributions (SSC) and to compensate for the ensuing loss in revenues by a rise in the value-added tax (VAT). Assuming unemployment to be caused by efficiency wages, it is shown that a balanced-budget shift from a payroll tax to a VAT will increase employmen...

The cation distribution of the NTC thermistor spinel N i M n 2 O 4 $NiM{n}_2{O}_4$ was studied in temperature range from 55°C to 900°C, using a combined in-situ neutron diffraction and thermopower study. Rietveld refinements data reveal dependence degree inversion with an parameter 0.70(1) at 900°C 0.87(1) 55°C. Thermopower measurements were evaluated modified Heikes formula [Mn4+]/[Mn3+]-ratio...

Patients: Patients ≥ 30 years of age (derivation group, n = 33 268, median age 52 y, 62% men; validation group, n = 5821, median age 55 y, 55% men) with normal ECGs and suspected CAD referred for symptom-limited exercise treadmill testing. Exclusion criteria were coronary disease, heart failure, left ventricular systolic dysfunction, cardiomyopathy, valvular or congenital heart disease, past re...

detection of axillary lymph node metastases were 55%, 55%, 11% and 77% for SM, US, and specificity of SM for the palpable lesions (n=31) were 100% and 84% and for the nonpalpable lesions (n=15) were 75% , respectively. In conclusion, although the number of patients studied was small pinion of the authors that Tc-MIBI-SM has a much better sensitivity and less r 3 modalities and also an be includ...

during nitrous oxide-fentanyl and nitrous oxide-isoflurane anaesthesia. Br. J. Anaesth, 55, 67S. Soter, N. A., Wasserman, S. I., Austen, K. F. and McFadden, E. R. (1980). Release of mast cell mediators and alterations in lung function in patients with cholinergic urticaria. N. Engl. J. Med., 302, 604. Twohig, M. M., Ward, S., and Corall, I. M. (1983). Conditions for tracheal intubation using at...