Measurements of dangerous, harmful and annoying factors in the working environment are used to assess occupational risk. Surveys on workers’ subjective perception of risk are used, too. This study aimed to compare subjective assessment of work-related factors with their objective measurements and a national database on occupational risk. Spearman’s correlation analysis, stepwise regression anal...

Protection is a crucial aspect of computing systems, in particular when users co-operate using shared objects. Since CORBA has become a standard in the object community, designing a protection service that is well integrated within the CORBA framework is an issue of first interest. Several well defined protection models have been proposed, among which access control list based models and capabi...

Grids encourage the dynamic addition of resources that are not likely to be benefited from the security that static, centrally administered commercial firewall’s or IDS’s provide. On the contrary, Grids need to enforce their own security policies that are self automated, as the manual management techniques are time consuming, insecure and error prone. This paper presents a new self-protection m...

the fundamental elements of nature, namely earth, water, air and sunshine should be in a healthy state, well balanced with the criteria of equilibrium and untainted so that the environment would remain pleasant and lively. hence, there will be plant, animal and human in a existential balance. man himself is the major polluter and destructor of environment. the environment, in turn, is a large c...