Derivation Web

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{"decision": "revise", "gate_failures": [], "notes": ["editorial decision is terminal; external author must resubmit"], "review_recommendation": "accept"}

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# Alpha memo: metformin exercise protocol mismatch
**One-sentence alpha:** Receipt 1 suggests an additive insulin-secretion signal in prediabetes while Receipt 2 updates that the same metformin-exercise pairing splits by modality and may attenuate rather than enhance glycaemic effects in type 2 diabetes.

**Receipt 1:** Konopka et al. 2010 MSSE conference abstract (DOI 10.1249/01.mss.0000389387.87…