The unprecedented gains in life expectancy over the past 300 years, the reductions in disease prevalence, and the increasing age at onset of disability have all contributed to raise the number of years free of disease and disability that a person born today can expect to live. In addition, the development of cures for many conditions and the pro-vision of effective symptom management for those conditions that cannot be cured have eliminated or reduced...
Jumat, 23 Desember 2011
Sabtu, 17 Desember 2011
Conclusion and outlook
The sections above have documented how advances in agricultural efficiency after 1700 allowed the societies of Europe and North America to expand and improve their diets by an unprecedented degree. The rise in agricultural efficiency set off a self-reinforcing cycle of improvements in nutrition and gains in labor productivity, leading to a substantial increase in per capita output, which has come to be known as “modern economic growth”. It was shown...
Selasa, 13 Desember 2011
Food production
Vaclav Smil
Humans acquire relied during the beforehand of their change on a basal of aural bureau to dedicated their aliment supply. In abounding places in the tropics the oldest strategies (foraging and animate agriculture) had coexisted accessory by accessory with afterwards bureau of aliment pro-vision (pastoralism, board farming) for complete connected periods of time (Headland and Reid, 1989). In others, China achievement a complete example,...
Kamis, 01 Desember 2011
A brief history of food production & Foraging societies
A brief history of food production
Every new find of hominid remains in East Africa reignites the controversy about the origin of our species, but at least one conclusion remains unchanged: we have come from a long lineage of opportunistic foragers, and for millions of years both the natural diet and the foraging strategies of hominids resembled those of their primate ancestor (Whiten and Widdowson, 1992). Larger brains improved the odds of their...
