The U.S. Department of Agriculture (USDA) first introduced its food pyramid in 1992. The pyramid offered visual guidance on ...
An element-block is defined as a minimum functional unit composed of heteroatoms. The concept of ‘element-block material’ for designing advanced materials was proposed in 2015. In this review, the ...
The Egyptians believed that hieroglyphs offered magical protection to people in this life and the afterlife, and inscribed the signs on monuments, statues, funerary objects, and papyri.
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