A covariant splitting of the total angular momentum of a spin particle into an orbital and a spin part is obtained by treating the Dirac equation as a subsidiary condition for the solutions of the Klein-Gordon equation of a spinor fiel...

Finish-turning of hardened powder metallurgy steel using cryogenic cooling, by Zbigniew Zurecki, John H. Frey and Ranajit Ghosh of Air Products and Nike Lunarglide 4 Chemicals, Inc won the 2003 MPIF Outstanding Technical Paper Award. T...

We study the nonlinear wave equation involving the nonlinear damping term ut |ut|m−1 and a source term of Nike Free 6.0 type u |u|p−1. For 1 < p ≤ m we prove a global existence theorem with large initial data. For 1 < m <...

A more robust view of the diversity of prokaryotes has come from sequencing rRNAs amplified directly from environmental samples. This approach has now been used to examine microbial communities in the human body, revealing populations r...

Odorant receptor genes are expressed not only in the nose but also in testes, where they have been hypothesized to play a role in sperm chemotaxis. New data demonstrate that human odorant receptor hOR 17-4 may play similar roles in both...

New radiocarbon dates on charcoal incorporated in proximal airfall deposits indicate the largest late Pleistocene eruption from the Mt. Edgecumbe volcanic field in Southeast Alaska occurred ca. 11,250 ± 5014C yr B.P. The more precise d...

We introduce concepts of external and internal complexity to analyze the relation between an adaptive system and its environment. We apply this theoretical framework Nike Free Run 2 Canada to the construction of models in a cognitive sy...

We give simple necessary and sufficient conditions for the existence of a zero-one matrix with given row and column sums Nike Free 3 Womens Canada and at most one structural zero in each row and column. On process plants, thermal insul...

Advance directives have been widely endorsed, and empiric work has taken place that can aid clinicians in the appropriate use of validated documents. This report reviews philosophic and methodologic issues and offers practical illustrat...

Superstring theory suggests a new cosmology whereby a long inflationary phase preceeded a non singular big bang-like event. After discussing how pre-big bang inflation naturally arises from an almost trivial initial state of the Univers...

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