A Thermodynamic Approach to Biological Invasions
Bibliographic record
Abstract
True acetylcholinesterase (AChE), an important polymorphic enzyme of the nervous system, was studied to determine the inhibition of transmission of nerve impulses in muscles of the red swamp crayfish, Procambarus clarkii, exposed in vitro to organophosphate (OP) insecticides.The species showed moderate sensitivity to OP insecticides, confirming a factor of its invasive capacity in Mediterranean freshwater and brackish environments.The half maximal inhibition concentration (IC 50 , M) for AChE vs. acetylthiocholine activity (ASCh, 1 mM) in P. clarkii was compared with that of different tissues of various aquatic invertebrates recently described as invasive and with other non-invasive species.The results suggest that non-invasive species have a lower capacity than invaders to regulate transfer of nerve impulses across synapses, favoring an overall increase in their internal entropy.On the other hand, invasive species seem to have a high capacity to self-organize and produce negentropic internal processes, even though in many cases their strong adaptive capacity can be deleterious for the complexity and equilibrium of the community into which they are introduced, favoring an overall increase in entropy of the ecosystem.The internal complexity of the invasive species considered in this study is discussed in terms of evolutionary thermodynamics with particular emphasis on entropy production and related information.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.003 |
| Scholarly communication | 0.001 | 0.003 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 0.001 |
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".