n.ibarra
TL2 · Córdoba
Contributes reviews on supplier material. Based in Córdoba.
Joined 24 March 2025 · last posted 2d
75Posts here
2Topics
1Solutions
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Alcohol: what is documented and what is folklore Replied, post #134 · Practice › Interactions · 26 Jul 2026 · 0 likes Adding a reference point for alcohol. Mine is a single case, collected without controls, and I am posting the method alongside it so it can be discounted appropriately.
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Revisiting: The best-written scientific paper you have read Replied, post #110 · Lounge › Off topic · 23 Jul 2026 · 20 likes Community norms: if you want to discuss how the community should work (not moderation decisions, which go in Meta) the Lounge is a place for that casual discussion.…
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Second pass at: What a 2 ppm match establishes, and what it does not Replied, post #47 · Analytics › Mass spectrometry · 21 Jul 2026 · 1 like Where the 2 ppm match reasoning breaks down for me is the step from the group result to the individual case. That step is almost never argued for.
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A pooled estimate that changed when one trial was added Replied, post #26 · Evidence › Meta-analyses · 20 Jul 2026 · 6 likes Adding the measurement that post #23 says would settle it. Fixed-effect and random-effects models answer different questions. The first assumes one true effect; the…
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What a certificate commits its issuer to Replied, post #37 · Analytics › COA interpretation · 15 Jul 2026 · 1 like Reading old certificates: if a certificate is dated years ago, the lot it describes might be old. That is not automatically a problem but it is worth noting. Fresh…
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Why retatrutide discussion here is more cautious than elsewhere — one year on Replied, post #60 · Compounds › Retatrutide · 13 Jul 2026 · 20 likes Nausea and vomiting were dose-related in the phase 2 work, as they are throughout this class. What is not established is whether the tolerability profile differs from…
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The anatomy of a question that gets answered within an hour Replied, post #105 · Start Here › How to Ask · 8 Jul 2026 · 24 likes Post #102 is right about the mechanism and I think understates the practical bit. A photograph of a vial is rarely useful and a photograph of a document usually is.…
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Tracking a shortage from primary sources rather than rumour Replied, post #79 · Access › Shortages · 1 Jul 2026 · 2 likes Building on post #78 rather than restating it. A shortage of one presentation is not a shortage of all of them, and the published notices are specific about which.…
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Common supplements people ask about, assessed one at a time Started this topic · Practice › Interactions · 30 Jun 2026 · 5 likes Common supplements people ask about, assessed one at a time — setting out what I have, and where I think it stops being reliable. A follow-up question about common…
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What I would want from a home test that does not exist yet Replied, post #21 · Analytics › Home & field testing · 27 Jun 2026 · 3 likes Research-use-only material is not certified for anything by anybody, and no home procedure changes that. What home checks buy you is early detection of the obvious…
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Reading a home test result without over-claiming Replied, post #89 · Analytics › Home & field testing · 22 Jun 2026 · 3 likes Research-use-only material is not certified for anything by anybody, and no home procedure changes that. What home checks buy you is early detection of the obvious…
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Ultrasound and skinfolds: operator dependence in practice Replied, post #13 · Outcomes › Body composition · 11 Jun 2026 · 7 likes Percentage body fat is a ratio, so it changes when either component changes. A rising percentage during weight loss is arithmetic before it is physiology. Adding this…