William H. Allen

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Experience with a maximal treadmill stress testing procedure which is relatively safe, simple, and reproducible is reported. It has been used in normal persons and cardiac patients with ages ranging from 7 to 83 years. There have been no deaths in our total experience of 4,028 maximal capacity stress tests. Maximal capacity is predicted by the patient's(More)
Many organizations and companies around the world are currently facing major security risks that threaten assets and valuable information system resources. Numerous security concerns are caused by the lack of sufficient and effective software security risk evaluation processes. Regardless of the technique used in security attacks, which change rapidly, many(More)
The concept of stealth - as it pertains to computers - shares a great deal with its real-world counterpart. In this article, we take a look at stealth from both a historical and a technological perspective. This is a hugely important topic, for if an unwanted computer program can't be seen, it can't be eliminated. In addition, software developers -(More)
A five-year follow-up of 888 asymptomatic men and women without known coronary heart disease (CHD) who had a maximal treadmill stress test (MTST) revealed a CHD incidence of 1.1% per year. In women, exercise duration of 3 minutes or less by the Ellestad protocol correlated with subsequent development of CHD (p less than 0.001), although abnormal ST-segment(More)
Software security has become a crucial component of software systems in today's market. However, software security development is still a maturing process. In this paper, we present an approach for assessing software architecture to determine how well it can satisfy intended security requirements. It is important to be able to assess the security of(More)
The prevalence of coronary risk factors was assessed in 2,524 asymptomatic adults in Long Beach, California. Hypercholesterolemia (serum cholesterol level greater than 250 mg/100 ml) was present in 725 subjects (28.8 per cent), hypertriglyceridemia (serum triglyceride level greater than or equal to 150 mg/100 ml) in 497 (19.7 per cent), and an abnormal(More)
This paper presents the generation of virus emerging from email to cellphones. Most of these early threats were self-replicating but not self-transporting, spreading from computer to computer via infected floppy disks. As more viruses were discovered, most known malware existed only in researchers' collections and not in users' machines. Malware was shift(More)
Using N-Version programming techniques to increase software reliability is a well-explored field. In this paper, we extend the concept to the detection of new security vulnerabilities. Using our own N-Version arbiter, Judicare, we implement a simple auction web application, and demonstrate how our application is robust to the most common Web vulnerabilities(More)