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Record W2047346998 · doi:10.1002/cmr.a.20223

How the 1D‐NOESY suppresses solvent signal in metabonomics NMR spectroscopy: An examination of the pulse sequence components and evolution

2011· article· en· W2047346998 on OpenAlex
Ryan T. McKay

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueConcepts in Magnetic Resonance Part A · 2011
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicMetabolomics and Mass Spectrometry Studies
Canadian institutionsNational Institute for NanotechnologyUniversity of Alberta
Fundersnot available
KeywordsTwo-dimensional nuclear magnetic resonance spectroscopyPulse sequenceChemistryNuclear magnetic resonance spectroscopyNuclear Overhauser effectMass spectrometryNuclear magnetic resonanceAnalytical Chemistry (journal)ChromatographyStereochemistryPhysics

Abstract

fetched live from OpenAlex

Abstract Metabonomics has become an increasingly shared pursuit in international research. Presently the two most common techniques are mass spectrometry and nuclear magnetic resonance (NMR) spectrometry either in isolation or in conjunction. The 1D‐ 1 H‐NOESY is the most utilized (Beckonert et al., Nat Protoc 2007;2:2692–2703) NMR pulse sequence for the collection of metabonomics NMR data from biological samples such as blood plasma, serum, urine, cerebrospinal fluid, sputum, or homogenized tissue extracts. While the 1D version of the 2D‐ 1 H, 1 H‐NOESY pulse sequence has become widely used in metabonomics studies, the understanding of the mechanism of solvent suppression has not kept pace. This article will examine the mechanisms by which the 1D‐NOESY suppresses solvent signals and detail the pulse sequence's components in terms of function, phase cycle, and performance. © 2011 Wiley Periodicals, Inc. Concepts Magn Reson Part A 38: 197–220, 2011.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.765
Threshold uncertainty score0.396

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.033
GPT teacher head0.257
Teacher spread0.224 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it