Sigma separation

Sigma separation

and colleagues have found that cells need a particular transcription factor to survive in the hypoxic interior of developing bones. The critical activity of hypoxia-inducible factor 1 ␣ (HIF-1 ␣), they say, is probably its induction of a glycolytic metabolism appropriate to a R HIF-1␣ prevents cell death despite hypoxia (red) in a wild-type tibia. low oxygen environment. Without this metabolic ...

Generalized sigma-derivation on Banach algebras

Let $mathcal{A}$ be a Banach algebra and $mathcal{M}$ be a Banach $mathcal{A}$-bimodule. We say that a linear mapping $delta:mathcal{A} rightarrow mathcal{M}$ is a generalized $sigma$-derivation whenever there exists a $sigma$-derivation $d:mathcal{A} rightarrow mathcal{M}$ such that $delta(ab) = delta(a)sigma(b) + sigma(a)d(b)$, for all $a,b in mathcal{A}$. Giving some facts concerning general...

APPROXIMATELY INNER sigma-DYNAMICS ON C* ALGEBRAS

Sigma Ballots

We present Sigma ballots, a new type of ballot designed to be used in secure elections. Sigma ballots use the random order of candidates introduced by Prêt à Voter, combined with the confirmation codes of Scantegrity II. These ballots can be produced by a DRE machine with a slightly modified VVPAT, or can be similar to optical scan ballots. Sigma ballots work in conjunction with existing public...

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