A Brief Overview of the Effect of High Pressures on the Vibrational Spectra of Biomaterials
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Bibliographic record
Abstract
Abstract The application of high pressures to biomaterials can often result in significant structural modifications and, in some cases, also lead to changes in the rates and the equilibria of any associated biological activities. Pressure-induced changes can conveniently be monitored by molecular spectroscopy. We present here a brief overview of the effects of high pressures on the IR and Raman spectra of biomaterials that have been reported over the past 25 years. Examples of the biomaterials that have been examined are model antithyroid drugs, proteins, amino acids, dental materials, human bones, and bioorganometallic compounds. In addition, some recent investigations on the effect of pressure on microbial activity and the conversion of biomass into molecular hydrogen under supercritical water conditions are discussed. Two typical diamond-anvil cells (DACs), which are used for high-pressure vibrational spectroscopic measurements, are also described here.
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it