Paradigms and paradoxes: fractional electron charge

Reengineering Engineering-Education: Paradigms and Paradoxes

Poly(ADP-ribose): PARadigms and PARadoxes.

Poly(ADP-ribosyl)ation (PARylation) is a posttranslational protein modification (PTM) catalyzed by members of the poly(ADP-ribose) polymerase (PARP) enzyme family. PARPs use NAD(+) as substrate and upon cleaving off nicotinamide they transfer the ADP-ribosyl moiety covalently to suitable acceptor proteins and elongate the chain by adding further ADP-ribose units to create a branched polymer, te...

Problems , paradoxes , paradigms : triangulating fire research ∗

Wildland fire research has historically orbited around a physical paradigm of fire. This strategy has yielded remarkable results, yet increasingly it cannot speak to the core issues that concern fire management. Two additional paradigms are needed. One would build on fire’s origins in the living world.The other would evolve out of fire’s significance to humanity, and humanity’s unblinking impor...

Timing of coronary recanalization. Paradigms, paradoxes, and pertinence.

In hearts of experimental animals, irreversible myocardial injury occurs when perfusion is interrupted completely for intervals as brief as 20-60 minutes.45 The failure of reperfusion to salvage irreversibly injured tissue has been documented rigorously. For example, Reimer et a14 ligated coronary arteries in dogs for selected intervals and assessed necrosis morphologically. In contrast to the ...

00 1 Fractional Charge

The origin and quantum status of Fractional Charge in polyacetylne and field theory are reviewed, along with reminiscences of collaboration with John Bell on the subject. [ Invited Lecture at the International Conference ”Quantum (Un)speakables” in honour of John Bell, held at Vienna, November 10-14 , 2000. ]