interakcijama

Interakcijom is the instrumental plural form of the Croatian noun interakcija, which denotes an interaction: a relation in which two or more entities influence each other's state or behavior. In English, the term is rendered as “interactions,” while “interakcijama” specifically marks the instrumental plural usage in sentences such as “s interakcijama” (with interactions).

Interactions are studied across many disciplines because they shape outcomes in complex systems. In social science, interactions describe how people or groups influence each other’s attitudes, decisions, and actions, often depending on context and reciprocal effects. In biology and medicine, molecular, cellular, and organismal interactions determine processes such as signaling, metabolism, and host–microbe relationships. In chemistry and physics, interactions include forces and bindings between particles, molecules, or fields that govern matter and energy exchange. In technology and design, human–computer and human–robot interactions focus on how people engage with systems, impacting usability, efficiency, and safety. In statistics and data science, interaction effects occur when the effect of one variable depends on the level of another.

Key characteristics of interactions include dependence on context, bidirectionality, and variability in strength. They are often modeled using networks or graphs, where nodes represent entities and edges denote the interaction relationships. Understanding interactions helps explain emergent behavior in ecosystems, markets, social networks, and engineered systems.

See also: Interakcija (the singular form), interakcije (the nominative plural), and network theory.