More variable food and nutrition services for young old

Young proteins experience more variable selection pressures than old proteins.

It is well known that young proteins tend to experience weaker purifying selection and evolve more quickly than old proteins. Here, we show that, in addition, young proteins tend to experience more variable selection pressures over time than old proteins. We demonstrate this pattern in three independent taxonomic groups: yeast, Drosophila, and mammals. The increased variability of selection pre...

Food, Nutrition, and Cancer

Cancer is one of the 1ea<ling cause="" of="" death="" and="" is="" a="" major="" public="" health="" problem="" all="" over="" the="" world.="" epi­demiological="" studies="" have="" led="" to="" concept="" that="" environ­mental="" factors="" may="" be="" important="" in="" carcinogenesis.="" diet="" nutrition="" are="" receiving="" increased="" attention="" relation="" 'to="" carcinogenesis="...

Norman Do More Unsolved Problems for Young and Old

Unsolved problems are the lifeblood of mathematics. Unfortunately, as the frontiers of our field are being pushed ever further, it is becoming more and more difficult for mathematicians from even mildly disparate research areas to find common ground. However, there is a wealth of elementary unsolved problems which any person with a working knowledge of mathematics should be able to understand a...

Nutrition and Food Sciences: Fascinating and Challenging

Nutrition Knowledge and Food Choice in Young Athletes