{
  "annotation_id": "8b508df2-e942-4a98-907b-47eeaedff99a",
  "date_created": "2026-03-02T18:01:35.087000Z",
  "date_modified": "2026-03-02T18:01:35.087000Z",
  "file_hash": "b8d08145f56e550960ef2a3ff486c9852fbc84562e608dde9e5c1f387ddab09c",
  "private": false,
  "record": {
    "abstract": "The mechanism of propulsion of host bacteria under the action of actin gel\nnetworks is examined by means of a continuum model of the dynamics of F-actin\nconcentration. The model includes the elasticity of the network, its attachment\nto the host and the polymerization at the interface with it. A formula for the\ncruise velocity is derived wherefrom the contributions of elasticity and\npolymerization are made explicit.\n  The velocity is proportional to the size of the active portion of the gel,\nand in turn it elongates its shape. It is shown how a finite latency time is\nneeded for the onset of motion: the related threshold condition is explicitly\ngiven. It is numerically found that at steady state the velocity has a\npulsating behavior, with sudden decelerations and subsequent recoveries: this\nunveils the dominant role of the elastic forces in propulsion.",
    "arxiv_id": "q-bio/0702061",
    "authors": [
      "V. G. Benza"
    ],
    "categories": [
      "q-bio.CB",
      "q-bio.BM"
    ],
    "title": "Continuum model of actin-mediated bacterial propulsion",
    "url": "https://arxiv.org/abs/q-bio/0702061"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "88bbe8f8-600b-4234-8cda-a72d02deda14",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}