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0 (zero) is a number representing an empty quantity. Adding 0 to any number leaves that number unchanged. In mathematical terminology, 0 is the additive identity of the integers, rational numbers, real numbers, and complex numbers, as well as other algebraic structures. Multiplying any number by 0 has the result 0, and consequently, division ...
Macau [e] or Macao [f] is a special administrative region of the People's Republic of China. With a population of about 680,000 [11] and a land area of 32.9 km 2 (12.7 sq mi), it is the most densely populated region in the world. Formerly a Portuguese colony, the territory of Portuguese Macau was first leased to Portugal by the Ming dynasty as ...
SWOT analysis (or SWOT matrix) is a strategic planning and strategic management technique used to help a person or organization identify Strengths, Weaknesses, Opportunities, and Threats related to business competition or project planning. It is sometimes called situational assessment or situational analysis.[1] Additional acronyms using the ...
H, or h, is the eighth letter of the Latin alphabet, used in the modern English alphabet, including the alphabets of other western European languages and others worldwide. Its name in English is aitch (pronounced /eɪtʃ/, plural aitches), or regionally haitch /heɪtʃ/.[1]
Portugal, [e] officially the Portuguese Republic, [f] is a country located on the Iberian Peninsula, in Southwestern Europe, and whose territory also includes the Macaronesian archipelagos of the Azores and Madeira. It features the westernmost point in continental Europe, its mainland west and south border with the North Atlantic Ocean and in ...
Ukraine[a] is a country in Eastern Europe. It is the second-largest European country after Russia, which borders it to the east and northeast.[b][10] It also borders Belarus to the north; Poland, Slovakia, and Hungary to the west; and Romania and Moldova[c] to the southwest; with a coastline along the Black Sea and the Sea of Azov to the south ...
Methylphenidate, sold under the brand names Ritalin (/ˈrɪtəlɪn/ RIT-ə-lin) and Concerta (/kənˈsɜːrtə/ kən-SUR-tə) among others, is a potent central nervous system (CNS) stimulant used medically to treat attention deficit hyperactivity disorder (ADHD) and, to a lesser extent, narcolepsy. It is a primary medication for ADHD (e.g. in ...
