ACTA is a comprehensive transaction framework that permits a transaction modeler to specify the e ects of extended transactions on each other and on objects in the database. ACTA allows the speci cation of (1) the interactions between transactions in terms of relationships between signi cant (transaction management) events, such as begin, commit, abort, delegate, split, and join, pertaining to ...

A n outstanding scientific and technological achievement of the twentieth century has been the evolution of nuclear energy which forms part of the mix of energy sources on which the continued growth of our civilization depends. In the twenty-first century we may be blessed with the arrival of another source of energy, of similar magnitude, which is more benign than nuclear energy and does not h...

Correction The acknowledgements section missed supporting grants: References 1. Eberhard TH, Sledjeski DD, Boyle MDP: Mouse skin passage of a Streptococcus pyogenes Tn917 mutant of sagA/pel restores virulence, beta-hemolysis and sagA/pel expression without altering the position or sequence of the transposon. Verbatim copying and redistribution of this article are permitted in any medium for any...

Naonobu Sugiyama, Hitoshi Nakashima, Takeru Yoshimura , Atsushi Sadanaga, Sakiko Shimizu, Kohsuke Masutani, Takashi Igawa, Mitsuteru Akahoshi, Katsuhisa Miyake, Atsunobu Takeda, Akihiko Yoshimura, Shinjiro Hamano and Hiroki Yoshida 1. Department of Medicine and Biosystemic Science, 2. Department of Ophthalmology, 3. Department of Medicine and Clinical Science, 4. Department of Parasitology, Gra...