Several experimental groups have reported evidence for baryons with flavor exotic quantum numbers that cannot be explained as qqq bound states but require a minimum of five quarks – qqqqq̄. These pentaquark states include the θ, the Ξ−− and the θc. The reported widths of these new states are consistent with experimental resolution and may be as narrow as a few MeV/c or less. Prior to 2003, exper...

Testability is the degree to which a software artifact facilitates testing in a given test context. It is directly related to test effort reduction. A lack of testability, like other design faults, is expensive to repair when detected late during software development. Therefore, testability should be addressed already during reviews of early development artifacts. This paper describes different...

Cloud Computing is an emerging technology in which the research community and industries have recently embarked. However, the infrastructures of most cloud computing systems today are invisible to the research community, or are not explicitly designed to the researchers interested in cloud computing systems. In this paper, we depict the Cloud computing paradigm from a variety of aspects, such a...