High Quality Content by WIKIPEDIA articles! Petroglyphs are images created by removing part of a rock surface by incising, pecking, carving, and abrading. Outside North America, scholars often use terms such as "carving", "engraving", or other descriptions of the technique to refer to such images. Petroglyphs are found world-wide, and are often (but not always) associated with prehistoric peoples. The word comes from the Greek words petros meaning "stone" and glyphein meaning "to carve" (it was...
High Quality Content by WIKIPEDIA articles! Petroglyphs are images created by removing part of a rock surface by incising, pecking, carving, and abrading. Outside North America, scholars often use terms such as "carving", "engraving", or other descriptions of the technique to refer to such images. Petroglyphs are found world-wide, and are often (but not always) associated with prehistoric peoples. The word comes from the Greek words petros meaning "stone" and glyphein meaning "to carve" (it was originally coined in French as petroglyphe). The term petroglyph should not be confused with pictograph, which is an image drawn or painted on a rock face. Both types of image belong to the wider and more general category of rock art. Petroforms, or patterns and shapes made by many large rocks and boulders over the ground, are also quite different. Inukshuks are also unique, and found only in the Arctic (except for reproductions and imitations built in more southerly latitudes).
Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.
В книге освещается одна из актуальных проблем современной медицины — негативные последствия лечебно-диагностических вмешательств, развивающиеся независимо от правильности или ошибочности врачебных назначений. Широкий арсенал диагностических и лечебных средств современной медицины таит в себе потенциальную опасность развития ятрогенных событий. Это требует от врача тщательной оценки...
Издательство:
Медицинское информационное агентство
Дата выхода: февраль 2018
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