Cultural and Genetic Transmission in the Jomon–Yayoi Transition Examined in an Agent-Based Demographic Simulation

Abstract As evidence from sign languages is increasingly used to investigate the process of language emergence and evolution, it is important to understand the conditions that allow for sign languages to persist. We build on a mathematical model of sign language persistence (i.e. protection from loss) which takes into account the genetic transmission of deafness, the cultural transmission of sign language and marital patterns (Aoki & Feldman, 1991). We use agent-based modeling techniques and draw inspiration from the wealth of genetic and cultural data on the sign language Kata Kolok to move towards a less abstract model of sign language persistence. In a set of experiments we explore how sign language persistence is affected by language transmission types, the distribution of deaf alleles, population size and marital patterns. We highlight the value of using agent-based modeling for this type of research, which allows for the incorporation of real-world data into model development.

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Practical application of wedding ring in agent-based demographic simulation

2017 Winter Simulation Conference (WSC) ◽

10.1109/wsc.2017.8248143 ◽

2017 ◽

Author(s):

Jeongsik Kim ◽

Namhun Kim ◽

Euihyun Paik ◽

Chun-Hee Lee ◽

Jang Won Bae

Keyword(s):

Practical Application ◽

Agent Based ◽

Demographic Simulation

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The Spatial Scale of Social Learning Affects Cultural Diversity

American Antiquity ◽

10.7183/0002-7316.76.1.163 ◽

2011 ◽

Vol 76 (1) ◽

pp. 163-176 ◽

Cited By ~ 28

Author(s):

L. S. Premo ◽

Jonathan B. Scholnick

Keyword(s):

Social Learning ◽

Cultural Diversity ◽

Spatial Scale ◽

Cultural Transmission ◽

Isolation By Distance ◽

Neutral Theory ◽

Genetic Transmission ◽

Agent Based ◽

Population Sizes ◽

Biased Cultural Transmission

Sewall Wright's (1943) concept of isolation by distance is as germane to cultural transmission as genetic transmission. Yet there has been little research on how the spatial scale of social learning—the geographic extent of cultural transmission—affects cultural diversity. Here, we employ agent-based simulation to study how the spatial scale of unbiased social learning affects selectively neutral cultural diversity over a range of population sizes and densities. We show that highly localized unbiased cultural transmission may be easily confused with a form of biased cultural transmission, especially in low-density populations. Our results have important implications for how archaeologists infer mechanisms of cultural transmission from diversity estimates that depart from the expectations of neutral theory.

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Total etch dentin bonding systems: scanning electron microscopy of the resin-dentin hybrid layer

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100130092 ◽

1992 ◽

Vol 50 (2) ◽

pp. 1092-1093

Author(s):

Jorge Perdigao

Keyword(s):

Composite Resin ◽

Mechanical Interlocking ◽

Hybrid Layer ◽

Agent Based ◽

Dentin Bonding ◽

Acid Agent ◽

Bond Strengths ◽

Main Component ◽

Bonding Systems ◽

New Generation

In 1955, Buonocore introduced the etching of enamel with phosphoric acid. Bonding to enamel was created by mechanical interlocking of resin tags with enamel prisms. Enamel is an inert tissue whose main component is hydroxyapatite (98% by weight). Conversely, dentin is a wet living tissue crossed by tubules containing cellular extensions of the dental pulp. Dentin consists of 18% of organic material, primarily collagen. Several generations of dentin bonding systems (DBS) have been studied in the last 20 years. The dentin bond strengths associated with these DBS have been constantly lower than the enamel bond strengths. Recently, a new generation of DBS has been described. They are applied in three steps: an acid agent on enamel and dentin (total etch technique), two mixed primers and a bonding agent based on a methacrylate resin. They are supposed to bond composite resin to wet dentin through dentin organic component, forming a peculiar blended structure that is part tooth and part resin: the hybrid layer.

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