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Some of the work of Bob Trivers makes some sense to me. He talks about parental investment https://en.wikipedia.org/wiki/Parental_investment. The "investment" of a man could be as little as paying for dinner, followed by a few minutes of sexual pleasure, and then he is free to go. The woman's investment for the same thing is the risk of pregnancy (or cryptic ...


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Another example is the paired helical filament of Alzheimer's disease, so-called because neurofibrillary tangles have a ribbon-like structure when viewed under the electron microsocope. It is now accepted that paired helical filaments consist of a single protein, microtubule-associated protein tau, in a polymerized and hyper-phosphorylated state. (see Lee ...


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