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BIBTEX RIS

IRREVERSIBLE TRANSFORMATIONS OF ORGANIC COMPOUNDS UNDER HIGH PRESSURES

1929; National Academy of Sciences; Volume: 15; Issue: 8 Linguagem: Inglês

10.1073/pnas.15.8.680

ISSN

1091-6490

Autores

P. W. Bridgman, James Β. Conant,

Tópico(s)

Material Science and Thermodynamics

Resumo

Humans become increasingly fragile as they age. We show that something similar may happen to states, although for states, the risk of termination levels off as they grow older, allowing some to persist for millennia. Proximate causes of their ...How states and great powers rise and fall is an intriguing enigma of human history. Are there any patterns? Do polities become more vulnerable over time as they age? We analyze longevity in hundreds of premodern states using survival analysis to help ...

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