• Psi-theory, developed by Dietrich Dörner at the University of Bamberg, is a systemic psychological theory covering human action regulation, intention...
    18 KB (2,337 words) - 02:59, 16 July 2023
  • Look up PSI, Psi, or psi in Wiktionary, the free dictionary. Psi, PSI or Ψ may refer to: Psi (Greek) (Ψ or ψ), the twenty-third letter of the Greek alphabet...
    6 KB (676 words) - 22:37, 6 September 2024
  • Thumbnail for Psi (Greek)
    Psi /ˈ(p)saɪ, ˈ(p)siː/ (P)SY, (P)SEE (uppercase Ψ, lowercase ψ or 𝛙; Greek: ψι psi [ˈpsi]) is the twenty-third and penultimate letter of the Greek alphabet...
    7 KB (860 words) - 01:34, 7 November 2024
  • Dirac equation (category Quantum field theory)
    _{x}{\begin{bmatrix}+\psi _{4}\\+\psi _{3}\\-\psi _{2}\\-\psi _{1}\end{bmatrix}}+\partial _{y}{\begin{bmatrix}+\psi _{4}\\-\psi _{3}\\-\psi _{2}\\+\psi _{1}\end{bmatrix}}+i\partial...
    79 KB (13,053 words) - 18:11, 7 December 2024
  • {\displaystyle \left\langle \psi _{nk}^{(0)}|\psi _{nk}^{(1)}\right\rangle =0\,.} The generalization of time-independent perturbation theory to the case where there...
    70 KB (15,969 words) - 10:32, 26 October 2024
  • t}}\psi (q,t)=-\sum _{i=1}^{N}{\frac {\hbar ^{2}}{2m_{i}}}\nabla _{i}^{2}\psi (q,t)+V(q)\psi (q,t).} This completes the specification of the theory for...
    125 KB (16,710 words) - 10:27, 22 December 2024
  • two cardiologists, Meyer Friedman and Ray Rosenman, who developed this theory came to believe that Type A personalities had a greater chance of developing...
    34 KB (4,496 words) - 10:08, 6 December 2024
  • {1}{2m}}\left(\Psi ^{*}{\hat {\mathbf {p} }}\Psi -\Psi {\hat {\mathbf {p} }}\Psi ^{*}\right)=-{\frac {i\hbar }{2m}}(\psi ^{*}\nabla \psi -\psi \nabla \psi ^{*})={\frac...
    74 KB (10,234 words) - 10:02, 29 December 2024
  • Thumbnail for Quantum mechanics
    {\displaystyle \psi _{u}={\begin{pmatrix}0\\1\end{pmatrix}}} , that is, ψ = α ψ l + β ψ u {\displaystyle \psi =\alpha \psi _{l}+\beta \psi _{u}} for complex...
    99 KB (12,087 words) - 23:57, 15 December 2024
  • highest honour awarded in German research. The cognitive architecture Psi-Theory is developed under his guidance. The Logic of Failure: Recognizing And...
    2 KB (172 words) - 17:19, 8 November 2024