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  1. 1 day ago · Schizophrenia is a mental disorder [17] characterized by reoccurring episodes of psychosis that are correlated with a general misperception of reality. [7] Other common signs include hallucinations (typically hearing voices ), delusions (i.e., paranoia ), disorganized thinking and behavior, [10] and flat or inappropriate affect. [7]

  2. 4 days ago · nongovernmental organization (NGO), voluntary group of individuals or organizations, usually not affiliated with any government, that is formed to provide services or to advocate a public policy. Although some NGOs are for-profit corporations, the vast majority are nonprofit organizations. Some NGOs, particularly those based in authoritarian ...

  3. 2 days ago · protein, highly complex substance that is present in all living organisms. Proteins are of great nutritional value and are directly involved in the chemical processes essential for life. The importance of proteins was recognized by chemists in the early 19th century, including Swedish chemist Jöns Jacob Berzelius, who in 1838 coined the term ...

  4. 5 days ago · What are emotions? “Emotions are a process, a particular kind of automatic appraisal influenced by our evolutionary and personal past, in which we sense that something important to our welfare is occurring, and a set of psychological changes and emotional behaviors begins to deal with the situation." - Paul Ekman, PhD. In other words ...

  5. 4 days ago · Paradoxical insomnia is a disorder in which you complain of getting poor sleep or not getting enough sleep, even though there is no evidence of a sleep problem. Psychophysiological Insomnia Psychophysiological insomnia is defined as having a state of heightened arousal, worry, and anxiety about sleep and sleeplessness.

  6. en.wikipedia.org › wiki › Game_theoryGame theory - Wikipedia

    15 hours ago · v. t. e. Game theory is the study of mathematical models of strategic interactions. [1] It has applications in many fields of social science, used extensively in economics as well as in logic, systems science and computer science. [2] Initially game theory addressed two-person zero-sum games, in which a participant's gains or losses are exactly ...

  7. en.wikipedia.org › wiki › MetalMetal - Wikipedia

    1 day ago · A metal (from Ancient Greek μέταλλον (métallon) 'mine, quarry, metal') is a material that, when polished or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. These properties are all associated with having electrons available at the Fermi level, as against nonmetallic materials which do not. [1] : .