个体粒子的持久性对抗了在内马学上对齐的自我驱动粒子群体中的全球排序
J M Nava-Sedeño1, R Klages2,3, H Hatzikirou4,5
1Universidad Nacional Autónoma de México, Departmento de Matemáticas, Facultad de Ciencias, Circuito Exterior, Ciudad Universitaria, 04510 Ciudad de México, México.
Physical review. E
|March 19, 2025
概括
个人迁移模式对集体运动有重大影响. 增加迁移持久性或相互作用强度可以导致有秩序的群聚,但当相互作用强烈时,高持久性可能会阻碍秩序.
科学领域:
- 生物物理 生物物理
- 集体行为 集体行为
- 微生物学 微生物学
背景情况:
- 在生物系统中,集体运动至关重要.
- 个人迁移模式对集体运动的影响还未得到充分研究.
- Myxococcus xanthus细菌可以作为集体迁徙的模型.
研究的目的:
- 研究个人迁移模式和粒子对粒子相互作用如何影响集体迁移.
- 分析运动持久性在集体动态中的作用.
- 了解Myxococcus xanthus.集体迁移的出现情况.
主要方法:
- 计算机模拟以建模集体迁移.
- 对新出现的集体性质进行数学分析.
- 专注于内马特速率对齐相互作用.
主要成果:
- 增加粒子对粒子的对齐或个体迁移的持续性可以诱导全球秩序从无序状态.
- 高持久性可以防止当对齐度也很高时的全球阴性顺序.
- 个人行为和互动都塑造了人口层面的动态.
结论:
- 集体行为源于个人迁移模式和个人间互动的结合.
- 运动持久性是影响过渡到有序集体迁移的关键因素.
- 了解个体行为对于预测人口水平动态至关重要.
相关概念视频
Principle of Linear Impulse and Momentum for a System of Particles
243
In the context of a system of particles moving relative to an inertial frame of reference, the equation of motion is a crucial tool for understanding the dynamics of the system. This equation, which accounts for external forces acting on each particle, plays a fundamental role in describing the system's behavior.
Notably, internal forces between particles, occurring in equal and opposite collinear pairs, cancel out and are not part of the equation of motion. This exclusion simplifies the...
Notably, internal forces between particles, occurring in equal and opposite collinear pairs, cancel out and are not part of the equation of motion. This exclusion simplifies the...
243
Conservation of Linear Momentum for a System of Particles
199
In the dynamic realm of billiards, a fascinating interplay of forces governs the motion of cue balls and stationary balls. When the cue ball collides with a stationary ball, linear momentum is exchanged. The cue ball imparts a fraction of its linear momentum to the stationary ball, causing the cue ball to decelerate while initiating the motion of the stationary ball.
The impulsive force at play during this interaction is of extremely short duration, rendering its impulse negligible. When...
The impulsive force at play during this interaction is of extremely short duration, rendering its impulse negligible. When...
199
Protein Dynamics in Living Cells
2.0K
Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
2.0K
Equation of Motion: Center of Mass
142
The equation of motion for a single particle can be expanded to encompass a system of particles consisting of n particles. For any arbitrarily chosen particle within this system, the net force acting upon it is the aggregate of both internal and external forces. Extending this principle to all particles within the system results in the equation of motion for the entire assembly.
Internal forces between any pair of particles manifest as collinear pairs of equal magnitude but opposite directions,...
Internal forces between any pair of particles manifest as collinear pairs of equal magnitude but opposite directions,...
142
The Uncertainty Principle
22.9K
Werner Heisenberg considered the limits of how accurately one can measure properties of an electron or other microscopic particles. He determined that there is a fundamental limit to how accurately one can measure both a particle’s position and its momentum simultaneously. The more accurate the measurement of the momentum of a particle is known, the less accurate the position at that time is known and vice versa. This is what is now called the Heisenberg uncertainty principle. He...
22.9K
Equilibrium Conditions for a Particle
982
When an object is in equilibrium, it is either at rest or moving with a constant velocity. There are two types of equilibrium: static and dynamic. Static equilibrium occurs when an object is at rest, while dynamic equilibrium occurs when an object is moving with a constant velocity. In both cases, there must be a balance of forces acting on the object.
To understand the concept of equilibrium, let us first consider the forces acting on an object. When different forces act on an object, they can...
To understand the concept of equilibrium, let us first consider the forces acting on an object. When different forces act on an object, they can...
982


