Vitamin A deficiency is a common problem in Africa and Southeast Asia, causing an estimated 250,000 to 500,000 children to become permanently blind each year
Before industrial nitrogen fertilizer production (from fossil fuels), red clover and other legume crops were essential in crop rotation, improving soil fertility
A new method for controlling the DNA duplication process makes it possible to shrink the current desktop machines to handheld devices which could be used in the field to provide early diagnosis of a wide range of infectious diseases
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