S t u a r t E. Madnick The Sloan School of Management Massachusetts I n s t i t u t e of Technology ABSTRACT This t u t o r i a l i s e x t r a c t e d from t h e r e c e n t l y completed monograph, Computer S e c u r i t y : Its Problems and S o l u t i o n s 133, and is intended as a tech-n i c a l review of r e s e a r c h i n t h e areas of o p e r a t i n g system s e c u r i t y. Further...

Today, the sport of ice hockey in North America is dominated by its premier circuit, the National Hockey League (N.H.L.). However, at the beginning of this century, the sport had only begun its transformation into a commercially driven spectacle, which, according to Gruneau and Whitson, now sells everything from beer to national identity. Emerging during a period of rapid urbanization and indus...

In 1993 federal elections were held in Australia and Canada alike. Whereas a complacent Australian media framed their coverage of the 1993 campaign in ways which cast voters in the role of passive consumers of politics, the Canadian news media experimented with various inclusive strategies which were intended to install ordinary Canadians at the very centre of their election coverage. The most ...

In this paper, we analyze the security of IPsec against a class of attacks known as the IV attacks, which are based on modifying the initialization vector (IV) of a CBC-encrypted packet during transmission. We show that IV attacks can be a serious threat for IPsec if IPsec is not used carefully. We also discuss the defense methods against these attacks.

The movement for a national pharmacare plan in Canada is growing, but at the same time the multinational pharmaceutical companies and their supporters are critical of such a move. The three major arguments that they make are that all that is needed is to “fill in the gaps,” ie, cover those who currently are uninsured or underinsured, that private drug plans are superior to public ones because t...

Mining is among the oldest industries. It is the primary source of raw materials for most of the sectors. Little is known about the complex inter-sectoral carbon linkages of the mining industry. In this work, we estimate the inter- and intra-sectoral carbon linkage impacts of the mining sector across ten major economies by applying an input-output model, and the hypothetical extraction method a...

The present investigation sought to comparatively explore the effect of length of residence (LOR) as well as EFL instruction on the pragmatic competence of Iranian learners. The participants were 45 EFL learners in Iran and 45 learners in Canada selected based on snowball sampling and each group was divided into three sub-groups based on the years of learning English in an EFL or a natural sett...

Background:  The objective of the study was to appraise the total dollar value of human life losses (TDVHL) associated with COVID-19 in Canada. Methods: The net output approach (also known as human capital approach) was applied in the dollar valuation of the 6,062 human life losses associated with COVID-19 in Canada as of 23 May 2020. The economic model was rerun five times: (a) using the nati...

He received his B.Sc. degree in Biology (1990) from Department of Biology, University of British Columbia, Canada, also M.Sc. in Botany (1993) from Department of Botany, University of British Columbia, Canada and Ph.D. in Plant Ecology (1996) from Department of Animal & Plant Sciences, University of Sheffield, England.Dr. Fraser's expertise is in grassland and wetland ecosystems, with a focus o...