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428 materials

4

An Unpublished Column. On Violence: A Simple Ethical Problem and Analysis of Three Examples from Contemporary Ukrainian Life

Ukraine is passing through the harshest trials in its recent history, which provoke heated debate. Of course, mutual misunderstanding between opponents is compounded by the effects of disinformation. One who sympathises with the anti-criminal character of the Ukrainian revolution will …

Дмитро Шабанов Article
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Discussion of the transition from hermaphroditism to dioecy as an example of non-classical development of a scientific hypothesis. Column for Kompyuterrа #137

In this column, I want to share with readers two surprises. The first — how it turns out with the evolution of reproduction in hermaphrodites. The second — to what extent the interaction of competent people, united by suitable nodes …

Дмитро Шабанов Article
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We live long. About the Ukrainian protest, "Molotov cocktails" and the oxytocin wave. Column for Kompyuterra #136

In general, I see three sides of the current Ukrainian events: — first: protesters, affected by the oxytocin wave; some desperation pushed to aggression, others are still driven by the most noble (and therefore — slightly idealistic) motivations; — second: …

Дмитро Шабанов Article
11

The Victory of Stability over Optimality, or Why Hermaphrodites Lose to Males and Females. Column for Computerra #135

Strategy — is a hierarchy of priorities corresponding to a particular mode of action in a particular situation. ... Evolution proceeds not toward the optimal, but toward the stable state. The transition from hermaphroditism to gonochorism — is a transition …

Дмитро Шабанов Article
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Are Eight Indirect Hypotheses Describing the Advantages of Sexual Reproduction Sufficient to Explain the Origin of Sex? Column for Computerra #133

If the survival advantage of offspring from sexual parents falls short of twofold, clonal organisms displace gonochoristic ones in the short term. The long-term advantages of sexual reproduction simply do not have time to manifest in such a situation! But …

Дмитро Шабанов Article
14

The queen of evolutionary biology problems: Jenkin's nightmare returns. Column for Kompyuterra #132

But what do we see? The winner in natural selection among most highly organized species, instead of carefully passing on to its offspring its genotype that ensured its environmentally approved individual development, finds nothing better than to violate the integrity …

Дмитро Шабанов Article