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In 2020, the autonomous underwater vehicle (AUV) has already become a vital part of deep-sea research. There is a long history of R&D of AUVs that dive into the deep sea, where radio waves cannot reach, thus making remote control difficult so that no help can be provided, which implies that careful and adequate preparation is necessary. Their successful development has been based on the accumulation of experience and achievements contributing to the remarkable results that no other system can produce. The aggressive R&D of Japanese AUVs started approximately 40 years ago. This paper looks back at this history and introduces various Japanese AUVs. [ABSTRACT FROM AUTHOR]

This paper represents a contribution to the knowledge about the experience of the Japanese community in rural areas of Argentina, particularly Buenos Aires (state) across the first half of the 20th century. With the objective of updating knowledge about this subject, a comparison was made between communities in peri-urban agricultural colonies: La Capilla, located in Florencio Varela, and Justo José de Urquiza, La Plata. We also focus on the origins, incursions, productive profiles, and the level of participation of Argentine and/or Japanese entities that influenced how each community developed, as well as successful companies and migrant settlement. [ABSTRACT FROM AUTHOR]