3D bioprinting in microgravity: An end to organ donor shortages?
Bibliographic record
Abstract
Countless lives have been saved with the advent of modern organ transplantation. However, the current shortage of compatible organ donors is limiting the life-saving potential of transplantation. According to the United Network for Organ Sharing, approximately 20 patients die each day in the United States while waiting for a transplant [1]. The discrepancy between supply and demand of organ donors is accentuated by a fundamental ethical dilemma associated with deceased organ donation: one person must die so that another may live [2]. The current viewpoint considers the viability of 3D bioprinting in microgravity as a solution to organ donor shortages. Current alternatives to deceased organ donation, including xenotransplantation and other state-of-the-art bioprinting techniques, are reviewed and compared to bioprinting in microgravity. The limitations of bioprinting within Earth’s gravitational field are also discussed, revealing the need for further research.
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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 | 0.002 |
| 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 | 0.001 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.007 | 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".