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Record W2973754599 · doi:10.1002/9780470027318.a9691

Nuclear Magnetic Resonance Techniques for Analysis of Contaminants in the Environment

2019· other· en· W2973754599 on OpenAlex
James G. Longstaffe

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

VenueEncyclopedia of Analytical Chemistry · 2019
Typeother
Languageen
FieldPhysics and Astronomy
TopicNMR spectroscopy and applications
Canadian institutionsUniversity of Guelph
Fundersnot available
KeywordsPrincipal (computer security)Nuclear magnetic resonance spectroscopyChemical shiftComputer scienceNuclear magnetic resonanceChemistryBiochemical engineeringPhysicsEngineering

Abstract

fetched live from OpenAlex

Abstract Nuclear magnetic resonance (NMR) spectroscopy is arguably the most powerful analytical tool available for the study of molecular structures. One of the most elegant attributes of NMR is that the information provided, primarily in the form of chemical shift, signal intensities, and spin–spin coupling (J‐coupling), is intrinsic to the nature of the molecular system being studied. As such the structures of compounds present may be deduced by applying the underlying logic that follows from a first principal understanding of the environmental and structural factors that control the output of an NMR measurement. Indeed, NMR is of primary importance in many scientific disciplines that rely on a precise understanding of molecular structures. Interest in the use of NMR as a tool to better understand environmental systems is growing as the underlying paradigm for environmental protection, monitoring, and remediation shifts away from tackling the known and critical environmental problems of the 1970s and 1980s towards a growing concern for the unknown environmental problems that have not yet been fully uncovered or understood. This article discusses the application of NMR spectroscopy as an analytical tool that has the potential to improve our understanding of the distribution and behavior of contaminants in the environment.

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 categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.231
Threshold uncertainty score0.998

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)0.0020.000

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 head0.006
GPT teacher head0.279
Teacher spread0.273 · 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