In this research injector, cleaner, and camphor were blended with premium motor spirit (PMS). Physicochemical properties effects on performance exhaust emission spark ignition engines investigated. Samples injector cleaner show the best physicochemical as compared to sole petrol samples having a density of 0.72706kg/m2 (I5), flashpoint 47oC by sample (I5, I10, I15,) 48oC I25, 1.7 viscosity, ana...

PURPOSE To present experimental dosimetry results for the new IsoSeed I25.S17plus (125)I brachytherapy source, in fulfillment of the American Association of Physicists in Medicine recommendation for, at least one, experimental dosimetry characterization of new low-energy seeds before their clinical implementation. METHODS AND MATERIALS A batch of 100 LiF thermoluminescent dosimeter (TLD)-100 ...

Many group B Streptococcus agalactiae strains and other pathogenic streptococci express a cell-associated peptidase that inactivates C5a (C5a-ase), the major neutrophil chemoattractant produced by activation of the complement cascade. Type III group B streptococci (GBS) can be classified genotypically into three restriction digest pattern types. Functional C5a-ase activity of GBS correlates wit...

PURPOSE To determine the relative dose rate distribution around the new (125)I brachytherapy source IsoSeed I25.S17plus and report results in a form suitable for clinical use. Results for the new source are also compared to corresponding results for other commercially available (125)I sources of similar design. MATERIAL AND METHODS Monte Carlo simulations were performed using the MCNP5 v.1.6 ...

In contrast to previous studies on the economic impact of universities that focus on the demand side, this study centres on universities’ effects on the supply side of the economy. Through a case study of the Spanish University System, this paper proposes a methodology based on counterfactual scenarios and growth accounting to estimate the long-term impacts of universities on their regional eco...

Missing data is a major problem in empirical development economics, as it may entail efficiency losses as well as biased results. This is an issue within the literature that investigates the effect of foreign aid on welfare. Using multiple imputation techniques, we address these problems and find lower aid effectiveness than previous studies suggest. In addition, imputation allows for compariso...

We introduce publicly funded education in R&D-based economic growth theory. The framework allows us to i) incorporate a realistic process of human capital accumulation for industrialized countries, ii) reconcile R&D-based growth theory with the empirical evidence on the relationship between economic prosperity and population growth, iii) revise the policy invariance result of semi-endogenous gr...

Human Capital, Economic Growth, and Inequality in China China’s rapid growth was fueled by substantial physical capital investments applied to a large stock of medium skilled labor acquired before economic reforms began. As development proceeded, the demand for high skilled labor has grown, and, in the past decade, China has made substantial investments in producing it. The egalitarian access t...

Estimates of the benefits of malaria reduction derived from countries that eradicated the disease are not necessarily applicable to sub-Saharan Africa, where malaria incidence and mortality is high and all eradication attempts were unsuccessful. This paper estimates the effects of malaria on schooling using geographic and survey data from Ethiopia. I show that self-reported malaria is highly co...