Latest topics page 12

Topics ordered by most recent activity across all 71 subcategories.

1,535 topics · page 12 of 52

Topic	Participants	Replies	Views	Activity
Second pass at: What a 2 ppm match establishes, and what it does not Analytics › Mass spectrometry MALDI-TOF mass error (ppm) counter-ion content high-resolution MS Second pass at: What a 2 ppm match establishes, and what it does not — setting out what I have, and where I think it stops being reliable. Two things I would like separated before anyone answers on 2 ppm…	+44	49	8.1k	1d
What a certificate commits its issuer to — one year on Analytics › COA interpretation reference standards certificate of analysis documentation quality batch & lot numbers Wiki What a certificate commits its issuer to — one year on — that is the question, and I have not found it answered plainly anywhere I have looked. A documentation question rather than an analytical one. I have a…	+107	117	6.5k	1d
What a simple presence test is genuinely useful for Analytics › Home & field testing documentation quality ELISA third-party testing LOD & LOQ Solved What a simple presence test is genuinely useful for — that is the question, and I have not found it answered plainly anywhere I have looked. Trying to work out what would count as evidence on simple presence…		2	58	1d
Revisiting: Can a home kit substitute for a laboratory report? A careful no Analytics › Home & field testing ELISA LOD & LOQ documentation quality third-party testing Revisiting: Can a home kit substitute for a laboratory report? A careful no — setting out what I have, and where I think it stops being reliable. I would like to disagree carefully with the settled view on…	+50	56	9.8k	1d
Follow-up: Patterns that reliably precede a problem, documented Sourcing › Red flags underdosing disputed documentation quality Solved On the subject in the title: Patterns that reliably precede a problem, documented Working notes rather than a conclusion. A follow-up question about Patterns that I did not know to ask the first time. The…		2	70	1d
Tracking a shortage from primary sources rather than rumour — the long version Access › Shortages compounding formulary FDA Solved On the subject in the title: Tracking a shortage from primary sources rather than rumour — the long version Working notes rather than a conclusion. Tracking a shortage keeps being re-asked here and I think…		2	60	1d
PIONEER 6 cardiovascular safety, read as a safety trial rather than an efficacy one Compounds › Oral incretins PIONEER programme SOUL trial randomised trial orforglipron Solved PIONEER 6 cardiovascular safety, read as a safety trial rather than an efficacy one — setting out what I have, and where I think it stops being reliable. Posting a small dataset on PIONEER 6 cardiovascular…	+25	29	22k	1d
Drawing up with one needle and injecting with another Practice › Administration injection site rotation missed dose aseptic technique subcutaneous injection On the subject in the title: Drawing up with one needle and injecting with another Working notes rather than a conclusion. A question about technique rather than about dose. I have been doing the same thing…	+1	5	6.9k	1d
Revisiting: Theoretical plates: useful number or ritual? Analytics › HPLC & UHPLC system suitability UV & DAD detection gradient method data table Solved Asking directly, because I could not find a straight answer: Revisiting: Theoretical plates: useful number or ritual? Asking about Theoretical plates directly, because I have read four threads on it and each…	+16	21	1.2k	1d
Specificity, linearity, accuracy, precision, range, robustness — with real criteria Analytics › Method validation precision & repeatability LOD & LOQ linearity Specificity, linearity, accuracy, precision, range, robustness — with real criteria Writing it up because I had to work it out twice and would rather nobody else did. Trying to establish the boundary…	+44	48	12k	1d
Journal club: orforglipron phase 2 and the non-peptide question Evidence › Journal club journal club estimand randomised trial Journal club: orforglipron phase 2 and the non-peptide question Writing it up because I had to work it out twice and would rather nobody else did. Orforglipron phase 2, and specifically the version of it that…	+120	132	13k	1d
The report format the maintainers ask for, and why each field is there Sourcing › Vendor reports disputed documentation quality batch & lot numbers certificate of analysis Solved On the subject in the title: The report format the maintainers ask for, and why each field is there Working notes rather than a conclusion. Structured report rather than an opinion, following the format the…		4	6.3k	1d
Follow-up: How compounding permissions changed when supply normalised Sourcing › Regulatory MHRA personal import research use only How compounding permissions changed when supply normalised I have a specific reason for asking rather than idle curiosity, and the context is below. I was wrong about compounding permissions in a thread last…	+72	77	1.5k	1d
What to bring: records that a clinician can actually use Clinical › Prescriber conversations beginner friendly type 2 diabetes prior authorisation Solved Asking directly, because I could not find a straight answer: What to bring: records that a clinician can actually use A question about how to describe something to a clinician rather than about the thing…	+15	19	6.4k	1d
[2026 update] Second opinions: how to seek one without burning the first Clinical › Prescriber conversations prior authorisation beginner friendly type 2 diabetes Solved On the subject in the title: Second opinions: how to seek one without burning the first Working notes rather than a conclusion. Two things I would like separated before anyone answers on Second opinions,…		2	5.9k	1d
[2026 update] Travelling with an injectable: documentation and practicalities Access › International telehealth EMA MHRA NHS Travelling with an injectable: documentation and practicalities Writing it up because I had to work it out twice and would rather nobody else did. Dated regional question, February 2026, because everything in…	+107	111	12k	1d
Coming back to: How much context is too much context in a first post? Start Here › How to Ask beginner friendly site feedback worked example onboarding Asking directly, because I could not find a straight answer: How much context is too much context in a first post? Counting it rather than describing it, because the count is the part that can be argued with.…	+2	6	7.5k	1d
Sulfonylureas: the interaction most worth taking seriously — what changed since Practice › Interactions metformin delayed gastric emptying hypoglycaemia insulin On the subject in the title: Sulfonylureas: the interaction most worth taking seriously — what changed since Working notes rather than a conclusion. What changes if the standard account of Sulfonylureas is…	+3	7	35k	1d
Mass error in ppm: the arithmetic and the caveat — a second dataset Analytics › Mass spectrometry counter-ion content mass error (ppm) charge states LC-MS Solved On the subject in the title: Mass error in ppm: the arithmetic and the caveat — a second dataset Working notes rather than a conclusion. Working through the identity arithmetic and I would like it checked.…	+20	24	1.7k	1d
Irish differences from the UK position — what changed since Regional › UK & Ireland personal import cost per milligram NHS Irish differences from the UK position — what changed since — setting out what I have, and where I think it stops being reliable. What changes if the standard account of Irish differences is wrong? I ask…	+8	12	782	1d
A 5 mg vial and a 0.25 mg dose: the arithmetic in full Practice › Reconstitution syringe units worked example reconstitution bacteriostatic water Solved A 5 mg vial and a 0.25 mg dose: the arithmetic in full Writing it up because I had to work it out twice and would rather nobody else did. 5 mg vial: setting out the arithmetic in full, because I have had to…	+124	141	16k	2d
Coming back to: Light exposure: how much protection is proportionate? Practice › Storage & stability temperature excursion cold chain freeze-thaw cloudy or discoloured solution Asking directly, because I could not find a straight answer: Light exposure: how much protection is proportionate? Reading back through what has been written here about Light exposure, three questions come up…	+5	10	13k	2d
Follow-up: Reading an interaction checker output critically Practice › Interactions insulin hypoglycaemia delayed gastric emptying needs a source Solved Reading an interaction checker output critically — setting out what I have, and where I think it stops being reliable. A follow-up question about Reading an interaction checker output that I did not know to…	+62	66	13k	2d
[2026 update] Regional warehouse stock versus direct despatch Sourcing › Logistics packaging customs shipping cold chain Regional warehouse stock versus direct despatch Writing it up because I had to work it out twice and would rather nobody else did. Working notes on Regional warehouse stock versus direct rather than a…	+135	147	32k	2d
Dizziness on standing: the ordinary explanation first — one year on Nutrition & Training › Hydration & electrolytes fatigue heart rate blood pressure Dizziness on standing: the ordinary explanation first — one year on — setting out what I have, and where I think it stops being reliable. A hydration and intake question, with the figures, since this one is…	+12	16	1.1k	2d
Which categories are strict and which are relaxed, honestly Start Here › Welcome onboarding beginner friendly guidelines trust levels Solved Which categories are strict and which are relaxed, honestly I have a specific reason for asking rather than idle curiosity, and the context is below. I want to check my reasoning rather than get a conclusion.…	+47	53	1.8k	2d
What to include when your question involves a laboratory result Start Here › How to Ask beginner friendly site feedback guidelines Asking directly, because I could not find a straight answer: What to include when your question involves a laboratory result Question in the title. Context below, and I have tried to include the things people…	+8	12	14k	2d
Follow-up: The retatrutide phase 2 obesity paper, read closely Compounds › Retatrutide retatrutide randomised trial preprint effect size The retatrutide phase 2 obesity paper, read closely — setting out what I have, and where I think it stops being reliable. A follow-up question about retatrutide phase 2 obesity paper that I did not know to…	+19	23	16k	2d
Revisiting: Why the absence of controlled human data on BPC-157 matters more than people admit Compounds › Repair & healing peptides observational data TB-500 BPC-157 preprint Solved Revisiting: Why the absence of controlled human data on BPC-157 matters more than people admit Writing it up because I had to work it out twice and would rather nobody else did. A follow-up question about…	+50	55	7.8k	2d
Micro-titration: a disputed topic, argued properly Practice › Dosing & titration titration dose reduction worked example tirzepatide Solved Wiki Micro-titration: a disputed topic, argued properly Writing it up because I had to work it out twice and would rather nobody else did. Two things I would like separated before anyone answers on…	+99	110	61k	2d