{
  "annotation_id": "a203e915-6e74-4c2b-9ab6-0d3c60f7412e",
  "date_created": "2026-03-02T18:01:31.732000Z",
  "date_modified": "2026-03-02T18:01:31.732000Z",
  "file_hash": "a37e5d8c07fe22fbe2457be402d19d533b8b9cbf793b65b154d454aa2bab085c",
  "private": false,
  "record": {
    "abstract": "In 1995 T.J.Penna introduced a simple model of biological aging. A modified\nPenna model has been demonstrated to exhibit behaviour of real-life systems\nincluding catastrophic senescence in salmon and a mortality plateau at advanced\nages. We present a general steady-state, analytic solution to the Penna model,\nable to deal with arbitrary birth and survivability functions. This solution is\nemployed to solve standard variant Penna models studied by simulation.\nDifferent Verhulst factors regulating both the birth rate and external death\nrate are considered.",
    "arxiv_id": "q-bio/0411007",
    "authors": [
      "J. B. Coe",
      "Y. Mao"
    ],
    "categories": [
      "q-bio.PE"
    ],
    "doi": "10.1103/PhysRevE.67.061909",
    "journal_ref": "Physical Review E 67 61909 (2003)",
    "title": "Analytical solution of a generalized Penna model",
    "url": "https://arxiv.org/abs/q-bio/0411007"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3eddf531-d505-495f-b73e-ce05fbdd3f1c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}