Müllerian mimicry, where groups of chemically defended species display a common warning color pattern and thereby share the cost of educating predators, is one of the most striking examples of ecological adaptation. Classic models of Müllerian mimicry predict that all unpalatable species of a similar size and form within a community should converge on a single mimetic pattern, but instead commu...

Agent based models are often described as bottom-up. Macro level phenomena emerge from the micro level interactions of agents. These macro level phenomena include fixed points, dynamic patterns, and long transients. In this paper, I explore the link between micro level characteristics – learning rules, diversity, network structure, and externalities – and the macro level patterns they produce. ...

Network Communities within Analytical Sociology One of the core issues (if not the core issue) in analytical sociology is the investigation of the micro-macro link in social phenomena (Hedström & Swedberg, 1998, Hedström, 2005). Analytical sociology endorses a social mechanism-based type of explanation according to which causal relationships between social phenomena at the macro-level are expla...

This paper, motivated by a collaboration with a healthcare service provider, studies dynamic scheduling policies (DSPs) for stochastic open-shop service networks with two objectives: more traditional macro-level measures such as minimizing total system time or minimizing total tardiness and the atypical micro-level measure of reducing the incidents of excessively long waits at any workstation w...

conclusions according to the conditions of this study, the ability to control the class in terms of absence of mumble, establishing a fun atmosphere, not merely reading the slides by the professor, mentioning the objectives at the beginning of each session and lack of voice monotony increase the learning level in classroom teaching. methods at the beginning of this cross sectional study, a list...

This paper provides a micro-foundation for dual market structure formation through partitioning processes in marketplaces by developing a computational model of interacting economic agents. We propose an agent-based modeling approach, where firms are adaptive and profit-seeking agents entering into and exiting from the market according to their (lack of) profitability. Our firms are characteriz...

BACKGROUND Limited evidence exists on obesity in the former Soviet Union (fSU), particularly its micro- and meso-level determinants. The objectives of this study were to determine age- and gender-adjusted prevalence of self-reported overweight and obesity in nine fSU countries; explore the relationship between individual and household (micro-level) factors and obesity; and explore the relations...

Agent based models are often described as bottom-up. Macro level phenomena emerge from the micro level interactions of agents. These macro level phenomena include fixed points, dynamic patterns, and long transients. In this paper, I explore the link between micro level characteristics – learning rules, diversity, network structure, and externalities – and the macro level patterns they produce. ...