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51Hemoglobin-based oxygen carriers — At the beginning of 20th century excellent work of Landsteiner and co authors combine with significant progress in fields of heart and circulation physiology initiated development of modern transfusion medicine allowing that blood transfusion… …
52ancient Rome — ▪ ancient state, Europe, Africa, and Asia Introduction the state centred on the city of Rome. This article discusses the period from the founding of the city and the regal period, which began in 753 BC, through the events leading to the… …
53Russian pornography and erotica — date back to 1980s when the disturbing restructuring of the Soviet Union set the stage for one of the most striking dramas in world history. In an interview with staff at Hot Specialty, veterans of trade associate the beginnings of Russian… …
54western Africa, history of — Introduction history of the region from the 11th century to the present. A reasonable body of sources for the writing of western African history begins to be available about AD 1000. Three centuries earlier, the Arabs (Arab) had… …
55Welding defect — A welding defect is any flaw that compromises the usefulness of the finished weldment. According to the American Society of Mechanical Engineers (ASME) welding defect causes are broken down into the following percentages: 41% poor process… …
56National Broadband Plan (United States) — Connecting America: The National Broadband Plan, unveiled March 16, 2010,[1] is a FCC (Federal Communications Commission) plan which deals with improving broadband Internet access throughout the United States. One goal was providing… …
57M16 rifle — Rifle, 5.56 mm, M16 From top to bottom: M16A1, M16A2, M4A1, M16A4 Type Assault rifle Place  …
58Passive solar building design — Elements of passive solar design, shown in a direct gain application …
59Druuna — in a typical pose. Artwork by Paolo Eleuteri Serpieri. Publication information Publisher Dargaud …
60History of the Kurdistan Workers Party — The history of the Kurdistan Workers Party (PKK) began in 1974 as a Marxist Leninist organization under the leadership of Abdullah Öcalan. Kurdistan Workers Party . F.A.S. 2004.] In 1978 the organization adapted the name Kurdistan Workers Party… …
