a.pereira
TL2 Moderator · Brno
Contributes reviews on supplier material. Based in Brno.
Joined 29 July 2025 · last posted 4d
85Posts here
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[2026 update] Charge states for a 4 kDa peptide, worked through Replied, post #12 · Analytics › Mass spectrometry · 16 Mar 2026 · 32 likes post #11 answers the question as asked. The question underneath it is different. Mass accuracy is expressed in parts per million. It is the difference between observed…
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Run-in periods and the population they select Replied, post #46 · Evidence › Trials · 6 Jan 2026 · 32 likes Surrogate endpoints: an endpoint that is not the outcome that matters but is measured as a stand-in. HbA1c is a surrogate for long-term glucose control and the…
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A ten-fold dose error caught before injection — one year on Replied, post #96 · Devices › Syringes & needles · 3 Aug 2025 · 32 likes Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the…
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Follow-up: Where the four-week escalation interval comes from, and what it is not Replied, post #97 · Practice › Dosing & titration · 4 Nov 2024 · 32 likes Steady state means the plasma concentration is stable from dose to dose. That happens around 4 to 5 half-lives. Before that, the concentration is rising with each dose.…
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Choosing which test to pay for, given a fixed budget — does this still hold? Replied, post #3 · Sourcing › Independent verification · 18 Oct 2024 · 32 likes Practical note that does not fit anywhere else. Whatever you conclude from this topic, write down what you did and when. The single most useful thing in your own…
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Second pass at: Metformin co-administration and additive GI effects Replied, post #115 · Practice › Interactions · 30 May 2026 · 31 likes Separation timing versus clinically important interaction: a separation timing inconvenience (taking one medication 2 hours before or after another) is not the same as…
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Badges earned, in order
| Badge | Tier | Granted |
|---|---|---|
| Basic User | bronze | 31 Jul 2025 |
| First Reply | bronze | 1 Aug 2025 |
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| Thank You | silver | 17 Dec 2025 |
| Nice Topic | bronze | 8 Jan 2026 |
| Popular Link | silver | 13 Jan 2026 |
| Good Post | silver | 7 Mar 2026 |
| De-escalator | gold | 27 Jul 2026 |