Although the performance of supercomputers on our n-body cosmology code has improved by a factor of nearly 2000 since 1991, the performance per watt has only improved 300-fold and the performance per square foot only 65fold. Clearly, we are building less and less efficient supercomputers, thus resulting in the construction of new machines rooms and even entirely new buildings. Furthermore, as t...

Brazilian author Paulo Coelho’s The Alchemist is believed to be a work that inspires readers reflect upon their dreams and pursue them. While it matter of discussion as what makes the novel so, one apparent reasons compelling presence philosophical ideas like Taoism. However, Taoism—the idea going with universe’s “flow” - contradicts use “fate” or “Maktub” present in same work. Maktub stands fo...

background : the implementation of hse programs is so complicated in tunneling industry which is considered as one of the risky industries. this study aims at investigating the relationship between employees' safety attitudes and status of their belief in destiny, chance and perceived importance of hse programs in occurrence of occupational accidents. methods : this research is a cross-sectiona...