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Accuracy of the EFW is reported to be best when examinations are performed within 7 days before delivery . ACOG advises “An accurate diagnosis of macrosomia can be made only by weighing the newborn after delivery. J Matern Fetal Neonatal Med. Epub Sep Robert Peter J, et. Cochrane Database Syst Rev.

The generally accepted age for the Earth and the rest of the solar system is about billion years (plus or minus about 1%). This value is derived from several.

Africa Paleolithic The Paleolithic of Africa is characterized by a variety of stone-tool assemblages, some of which represent purely local developments while others are practically identical with materials from corresponding horizons in Europe. Geological investigations of the Late Cenozoic deposits of this continent indicate that, as the result of fluctuations in rainfall, the Pleistocene Epoch throughout most of Africa can be subdivided on the basis of a succession of pluvial and interpluvial stages.

The pluvials, known as Kageran, Kamasian, Kanjeran, and Gamblian, are believed to represent the tropical and subtropical equivalents of the four major glacial stages of the Northern Hemisphere, but this has not yet been proved. The archaeological succession is well established in certain areas, although not in the continent as a whole. North Africa In this area, very crudely worked pebble tools have been reported from one site in Algeria in direct association with a Lower Pleistocene Villafranchian mammalian assemblage.

Throughout Tunisia, Algeria, Morocco , and the Sahara region, Lower Paleolithic hand axes of both Abbevillian and Acheulean type, together with flake tools, have been found in great numbers. The geological evidence shows that the Sahara region was far less arid during Pleistocene times than it is at present. A specialized Middle Paleolithic development, known as the Aterian , occurred there; it is characterized by tanged points made on flakes and flake blades.

This was succeeded by two distinctive blade-tool complexes—the Capsian and Oranian —which are more or less contemporary. Their main development took place during the time span of the European Mesolithic. The Capsian sites are all inland, whereas the Oranian has a coastal distribution. Both are microlithic tool complexes that persisted after the introduction of Neolithic traits into the area.