论文标题
结肠孔
The colon-pile
论文作者
论文摘要
细菌填充了结肠，在该结肠中它们复制并响应养分可用性而迁移。在这里，我将结肠细菌种群建模为一种沙珀模型，即结肠。沙子添加模仿细菌复制和谷物倒数量代表细菌迁移与人口密度高的迁移。数值模拟揭示了一种类似于非保守的沙珀模型的行为，当死亡率忽略不计时，具有系统广泛的雪崩的临界状态。关键指数估计表明结肠铜管属于新的普遍性类别。这项工作表明结肠微生物组处于自组织的临界状态，小型扰动可以触发大规模的重排，覆盖了与系统大小相当的区域，并以1/f噪声光谱为特征
Bacteria populate the colon where they replicate and migrate in response to nutrient availability. Here I model the colon bacterial population as a sandpile model, the colon-pile. Sand addition mimics bacterial replication and grains toppling represents bacterial migration coupled to high population density. The numerical simulations reveal a behaviour similar to non-conservative sandpile models, approaching a critical state with system wide avalanches when the death rate becomes negligible. The critical exponents estimation indicates that the colon-pile belongs to a new universality class. This work suggest that the colon microbiome is in a self-organised critical state, where small perturbations can trigger large scale rearrangements, covering an area comparable to the system size and characterised by a 1/f noise spectra
