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Negativity (other)
Negativity may refer to: * Negativity (quantum mechanics), a measure of quantum entanglement in quantum mechanics * Negative charge of electricity * Electronegativity, a chemical property pertaining to the ability to attract electrons * Positivity/negativity ratio, in behavioral feedback. * Negativity effect The negativity bias,Kanouse, D. E., & Hanson, L. (1972). Negativity in evaluations. In E. E. Jones, D. E. Kanouse, S. Valins, H. H. Kelley, R. E. Nisbett, & B. Weiner (Eds.), ''Attribution: Perceiving the causes of behavior.'' Morristown, NJ: Gene ..., a psychological bias * ''Negativity'' (album) See also * Negative (other) * Negativism (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Negativity (quantum Mechanics)
In quantum mechanics, negativity is a measure of quantum entanglement which is easy to compute. It is a measure deriving from the Peres–Horodecki criterion, PPT criterion for Separable state, separability. It has shown to be an entanglement monotone and hence a proper measure of entanglement. Definition The negativity of a subsystem A can be defined in terms of a density matrix \rho as: :\mathcal(\rho) \equiv \frac where: * \rho^ is the partial transpose of \rho with respect to subsystem A * , , X, , _1 = \text, X, = \text \sqrt is the trace norm or the sum of the singular values of the operator X . An alternative and equivalent definition is the absolute sum of the negative eigenvalues of \rho^: : \mathcal(\rho) = \left, \sum_ \lambda_i \ = \sum_i \frac where \lambda_i are all of the eigenvalues. Properties * Is a convex function of \rho: :\mathcal(\sum_p_\rho_) \le \sum_p_\mathcal(\rho_) * Is an entanglement monotone: :\mathcal(P(\rho_)) \le \mathcal(\rho_) wher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Negative Charge
Electric charge is the physical property of matter that causes charged matter to experience a force when placed in an electromagnetic field. Electric charge can be ''positive'' or ''negative'' (commonly carried by protons and electrons respectively). Like charges repel each other and unlike charges attract each other. An object with an absence of net charge is referred to as neutral. Early knowledge of how charged substances interact is now called classical electrodynamics, and is still accurate for problems that do not require consideration of quantum effects. Electric charge is a conserved property; the net charge of an isolated system, the amount of positive charge minus the amount of negative charge, cannot change. Electric charge is carried by subatomic particles. In ordinary matter, negative charge is carried by electrons, and positive charge is carried by the protons in the nuclei of atoms. If there are more electrons than protons in a piece of matter, it will have a n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronegativity
Electronegativity, symbolized as , is the tendency for an atom of a given chemical element to attract shared electrons (or electron density) when forming a chemical bond. An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus. The higher the associated electronegativity, the more an atom or a substituent group attracts electrons. Electronegativity serves as a simple way to quantitatively estimate the bond energy, and the sign and magnitude of a bond's chemical polarity, which characterizes a bond along the continuous scale from covalent to ionic bonding. The loosely defined term electropositivity is the opposite of electronegativity: it characterizes an element's tendency to donate valence electrons. On the most basic level, electronegativity is determined by factors like the nuclear charge (the more protons an atom has, the more "pull" it will have on electrons) and the number and locat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Positivity/negativity Ratio
The critical positivity ratio (also known as the "Losada ratio" or the "Losada line") is a largely discredited concept in positive psychology positing an exact ratio of positive to negative emotions which distinguishes "flourishing" people from "languishing" people. The ratio was proposed by psychologists Barbara Fredrickson and Marcial Losada, who believed that they had identified an experimental measure of affect whose model-derived positive-to-negative ratio of 2.9013 defined a critical separation between flourishing and languishing individuals, as reported in their 2005 paper in '' American Psychologist''. This concept of a critical positivity ratio was widely embraced by academic psychologists and the lay public; Fredrickson and Losada's paper had been cited more than 320 times by January 2014,Will Wilkinson, writing for ''The Daily Beast'', see citation following, states that Fredrickson & Losada (2005) "garnered almost 1,000 citations in less than a decade", which places ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Negativity Effect
The negativity bias,Kanouse, D. E., & Hanson, L. (1972). Negativity in evaluations. In E. E. Jones, D. E. Kanouse, S. Valins, H. H. Kelley, R. E. Nisbett, & B. Weiner (Eds.), ''Attribution: Perceiving the causes of behavior.'' Morristown, NJ: General Learning Press. also known as the negativity effect, is the notion that, even when of equal intensity, things of a more negative nature (e.g. unpleasant thoughts, emotions, or social interactions; harmful/traumatic events) have a greater effect on one's psychological state and processes than neutral or positive things. In other words, something very positive will generally have less of an impact on a person's behavior and cognition than something equally emotional but negative. The negativity bias has been investigated within many different domains, including the formation of impressions and general evaluations; attention, learning, and memory; and decision-making and risk considerations. Explanations Paul Rozin and Edward Royzman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Negativity (album)
''Negativity'' is the fifth album by American indie-rock band Deer Tick. The album was recorded in Portland, Oregon with Los Lobos' Steve Berlin Steven M. Berlin (born September 14, 1955, Philadelphia) is an American saxophonist, keyboardist and record producer, best known as a member of the rock group Los Lobos and, before that, Top Jimmy & the Rhythm Pigs, the Blasters, and the Fles .... Writing began in 2012 during a challenging time in John McCauley's personal life. Album artwork photography by Anna Webber. It is the band's first release on Canadian record label Arts & Crafts.Hudson, Alexhttp://exclaim.ca/News/deer_tick_sign_to_arts_crafts_for_negativity_map_out_canadian_dates_on_north_american_fall_tour ''Exclaim.ca''. August 22nd, 2013. Track listing References External linksOfficial Website [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Negative (other)
Negative may refer to: Science and mathematics * Negative number * Negative mass * Negative energy * Negative charge, one of the two types of electric charge * Negative (electrical polarity), in electric circuits * Negative result (other) * Negative lenses, uses to describe diverging optics Photography * Negative (photography), an image with inverted luminance or a strip of film with such an image * Original camera negative, the film in a motion picture camera which captures the original image * Paper negative, a negative image printed on paper used to create the final print of a photograph Linguistics * A negative answer, commonly expressed with the word ''no'' * A type of grammatical construction; see affirmative and negative *A double negative is a construction occurring when two forms of grammatical negation are used in the same sentence. Music * Negative (Finnish band), a Finnish band established in 1997 * Negative (Serbian band), a Serbian band est ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
