Let’s Study Legislation System Ensuring Pesticide Safety

Ensuring Reliable Safety Standards

The Leiden Thrombophilia Study (LETS).

Our study grew from an attempt to solve a controversy. In 1987 protein C antigen level was assessed in a large cohort of healthy blood donors (1). Subjects in this cohort who were heterozygous for protein C deficiency did not suffer from venous thromboembolism. Family studies in four of the protein C deficient individuals showed autosomal inheritance of the defect. These findings seemed in cont...

Ensuring safety of DNA vaccines

In 1990 a new approach for vaccination was invented involving injection of plasmid DNA in vivo, which elicits an immune response to the encoded protein. DNA vaccination can overcome most disadvantages of conventional vaccine strategies and has potential for vaccines of the future. However, today 15 years on, a commercial product still has not reached the market. One possible explanation could b...

Ensuring Safety and Security for Avionics: a Case Study

We present a case study in the avionics context, in which bidirectional information flows exist between critical components and less critical ones. These flows raise security and safety concerns that have to be taken into account to guarantee correct operation of the critical tasks. To allow upwards flows, we propose fault tolerance mechanisms based on diverse operating systems isolated by virt...

A Learning Evolutionary Trading System LETS

Many techniques have been used to model financial time series data such as stock prices, including linear and nonlinear statistical methods and more inscrutable methods such as neural nets. The hope is that if the time series can be predicted fairly well, the predictions can be used to make profitable buy/sell/hold decisions. Time series modelling may work well for physical systems, such as blo...