Mockup 02 · 🥉 low shared context · the Evidence node

One result, read cold — published, addressable, citable

A single Evidence node (R3 — one canonical Evidence type) standing on its own: the summary figure and methods up front for the glancer, the grounding Study and Protocol traversed on demand for the reproducer (R4), pointers never payloads (R2), and a visible provenance byline so a stranger can trust it (R8).

Evidence published · addressable · citable

The magnetic-field effect in MagLOV2 flips sign as the field strengthens

mira.science/n/maglov2-mfe-7c1ae04 ⌘C to copy cite · version frozen cited by 3
The observation

In MagLOV2-expressing E. coli, the sign of the mean magnetic-field effect (MFE) flipped from positive to negative as magnetic field strength increased at low fields — positive near 0.5 mT, crossing zero, negative by ~2.5 mT.

One panel, one statement — enough for a busy reviewer to trust the figure and move on.
What's in the dish
OrganismE. coli
ReporterMagLOV2
Field strengths0.5–2.5 mT (×5)one experiment per field
Colonies74 per field
Modalitybacterioscopelive fluorescence imaging
Field cal.Twinleaf magnetometer
Mean MFE vs. applied field fig 1
MFE = 0 +0.4 +0.2 0 −0.2 −0.4 mean MFE (a.u.) 0.5 1.0 1.5 2.0 2.5 applied magnetic field (mT) sign flips
mean MFE ± SEM · n = 74 colonies/field
illustrative · unpublished — workshop prototype
supports ↑ Claim · model — a radical-pair quantum mechanism underlies MagLOV2 magnetosensitivity
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How this figure was produced

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Evidence · this node you are here
MFE sign flipped from positive to negative as field strength increased
Across 0.5–2.5 mT, the mean magnetic-field effect was positive at low field, crossed zero, and turned negative by ~2.5 mT (1 experiment per field, 74 colonies each) — the curve above.
git quantum-bio/mfe-analysis @ 7c1ae04 · /mfe_fit_analysis/ data curated mfe_by_field.csv (this figure)
1 working note withheld by the authors — not part of this publication.
grounds ↑ Study → Evidence
Study is_grounded_in ↑ Evidence
Bacterioscope live imaging of MagLOV2 E. coli across 5 field strengths
One experiment, five imaging sessions on five days at 0.5, 1.0, 1.5, 2.0 and 2.5 mT; per-colony fluorescence tracked under a Twinleaf-calibrated applied field, with the MFE computed per colony.
raw NDTiff stacks · institute drive request access
video walkthrough.loom
A 3-min bacterioscope walkthrough
Loom · pointer only · 2:51
follows ↑ Study → Protocol
Protocol
MagLOV2 expression + applied-field acquisition + per-colony MFE
Express MagLOV2 in E. coli; acquire fluorescence on the bacterioscope under an applied field calibrated with a Twinleaf magnetometer; compute the magnetic-field effect per colony and average across the plate.
git quantum-bio/mfe-analysis @ 7c1ae04 · /protocols/bacterioscope_mfe.md