Short half-life corresponds to high reactivity. The one nanosecond half-life of the hydroxyl radical indicates that it is so reactive that it reacts with the first molecule it bumps into. Ascorbate forms H2O2 on autoxidation direct combination with oxygen. Lipid peroxidation of polyunsaturated fatty acids exposed to oxygen leads to rancidity in foods.
For instance, the people who routinely get themselves screened for being a carrier for Tay-Sachs disease are a demographic who have an extremely strong historical reason to be worried about Nazi-style dysgenics, and yet, eugenics is exactly what they are doing whenever a couple of them, on learning that they are both carriers, decide to refrain from having children together, or break off their relationship and seek other, non-carrier partners.
The Nazis thought they were practising eugenics.
From their point of view, they were improving the gene pool: People will disagree on which types of eugenics are good and which are bad. We need a better way of referring to the method. Jun September 11, at That more clearly indicates the salient differences between the two, and also avoids coding our own values into the name.
Deiseach September 11, at 1: Nornagest September 11, at 1: Formalized discrimination against Jews began as early asalmost immediately after the Nazis came to power.
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Mary September 11, at 3: After the putsch, as early as the trial, they wrapped it up in ethnic nationalism as a better sell.
Most Germans were sold that, which lead in due course to the original anti-Semitism. Indeed, many observers thought at the time that Hitler had gotten over his earlier attitude on Jews. David Hart September 11, at 6: Vilhelm S September 11, at 5: Of course, not everyone will agree exactly with this formulation.
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The Hayflick Limit. In , and in contradiction to what was thought at the time, Leonard Hayflick and Paul Moorhead discovered that human cells derived from embryonic tissues could only divide a finite number of times in culture (Hayflick and Moorhead, ).They .
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