In the past few years a lot of attention has been paid to the use of special logics to analyae cryptographic protocols, foremost among these being the logic of Burrows, Abadi and Needham (the BAN logic). These logics have been successful in finding weaknesses in various examples. In this paper a limitation of the BAN logic is illustrated with two examples. These show that it is easy for the BAN...

The famous BAN paper [3] determined the research agenda of security-protocol verification for nearly a decade. Many others had worked on verifying security protocols, and the problem appeared to be intractable. The real-world systems were too complicated; too many different things could go wrong; the formal treatments were unusable. The BAN logic was abstract, formalizing intuitive notions dire...

OBJECTIVES As of October 2009, seven U.S. states and the District of Columbia (D.C.) ban driving while talking on a handheld cell phone. Long-term effects on driver handheld phone use in D.C., New York State, and Connecticut were examined. METHODS The percentage of drivers talking on handheld cell phones was measured over time with daytime observation surveys in the jurisdictions with bans an...

Introduction: Iron deficiency anemia and beta-thalassemia trait are the two most common causes of hypochromic microcytic anemia. There are some discriminating functions (DFs) formula to differentiate these two conditions based on RBC's indices which would be compared the validity of the 14 various indices in this study. Correspond...

With the emergence of numerous distributed services, the importance of electronic authentication in networks is rapidly increasing. Since more than a decade, authentication protocols have been proposed and discussed. Because of various flaws which were found late, Burrows, Abadi and Needham [BAN] created a logic of authentication to formally verify authentication protocols by the end of the 80’...

Background and Purpose. The association between smoking and CV has been proved; however smoking is still the first preventable cause of death in the EU. We aim to evaluate the potential impact of the smoke ban on the number of ACS events in the Portuguese population. In addition, we evaluate the longitudinal effects of the smoking ban several years after its implementation. Methods. We analyzed...

hydrolysate, soy and conventional cow milk formulas on incidence of atopic disease in high risk infants. Annals of Allergy 1989; 63: 102–6. 4 Chandra R. Five-year follow-up of high risk infants with family history of allergy who were exclusively breastfed or fed partial whey hydrolysate, soy and conventional cow’s milk formulas. Journal of Pediatriatric Gastroenterology and Nutrition 1997; 24: ...