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Seki Takakazu is a Japanese mathematician in an early period of the Edo era, known as the first person to study the so-called "determinant" in the world. He died on 24 October 5, which corresponds to 5 December 1708 in the current solar calendar, and we celebrate his 300th posthumous anniversary this year.

Over a half of adults in the US, Canada, Australia and numerous European countries are now overweight or obese, a proportion that has risen sharply in the past two decades. Dominant biomedical explanations focus on the energy equation ¿ an imbalance between energy intake and expenditure - and remedies focus on motivating individuals to restore the balance by eating better and being more active, or ¿ in extreme cases ¿ surgical intervention.¿Th...

Atta's novel charts the fate of two African girls, one born of privilege and the other a lower class "half-caste. One is prepared to manipulate the traditional system while the other attempts to defy it. The tale traces their unusual friendship into their adult lives, against the backdrop of tragedy, family strife, and a war-torn Nigeria. Winner of the Wole Soyinka Prize for African Literature. A literary masterpiece. --"(World Literature Today).