gradation control
51Race (classification of human beings) — The term race or racial group usually refers to the concept of categorizing humans into populations or groups on the basis of various sets of characteristics. [http://www.physanth.org/positions/race.html AAPA Statement on Biological Aspects of… …
52Great Moravia — 833[Note 1] – 902 …
53Suvarnabhumi Airport — For other meanings of BKK, see BKK (disambiguation). Suvarnabhumi Airport ท่าอากาศยานสุวรรณภูมิ (Sanskrit: Suvarṇa – Gold, Bhūmi – Land) …
54Traditional knowledge — Intellectual property law Primary rights Copyright · authors rights  …
55Patriarchy (anthropology) — Patriarchy (from Greek: patria meaning father and arché meaning rule) is the anthropological term used to define the condition where male members of a society tend to predominate in positions of power; with the more powerful the position, the… …
56petroleum refining — Introduction conversion of crude oil into useful products. History Distillation of kerosene and naphtha The refining of crude petroleum owes its origin to the successful drilling of the first oil well in Titusville, Pa., in 1859. Prior to… …
57Language teaching methods — Main article: Language education Language education may take place as a general school subject or in a specialized language school. There are many methods of teaching languages. Some have fallen into relative obscurity and others are widely used; …
58Motor unit plasticity — The motor unit consists of a voluntary alpha motoneuron and all of the collective muscle fibers that it controls, known as the effector muscle. The alpha motoneuron communicates with acetylcholine receptors on the motor end plate of the effector… …
59Municipal governance in India — has been in existence since the year 1687 with the formation of Madras Municipal Corporation and then Calcutta and Bombay Municipal Corporation in 1726. In early part of the nineteenth century almost all towns in India had experienced some form… …
60Concrete — This article is about the construction material. For other uses, see Concrete (disambiguation). Outer view of the Roman Pantheon, still the largest unreinforced solid concrete dome.[1] …
