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Shone’s syndrome is a rare disorder that is often detected in very young children. The children tend to show symptoms like fatigue, nocturnal cough, and reduced cardiac output by the age of two years. They also develop wheezing due to the exudation of fluid into the lungs. [1]
There is a complex sequence of events that result in a well formed heart at birth and disruption of any portion may result in a defect. [32] The orderly timing of cell growth, cell migration, and programmed cell death (" apoptosis ") has been studied extensively and the genes that control the process are being elucidated. [ 27 ]
A conformal anomaly, scale anomaly, trace anomaly or Weyl anomaly is an anomaly, i.e. a quantum phenomenon that breaks the conformal symmetry of the classical theory.. In quantum field theory when we set to zero we have only Feynman tree diagrams, which is a "classical" theory (equivalent to the Fredholm formulation of a classical field theory).
A special case of this problem is known as the “counting anomaly”. [ 32 ] [ 33 ] Supporters of collapse theories mostly dismiss this criticism as a misunderstanding of the theory, [ 34 ] [ 35 ] as in the context of dynamical collapse theories, the absolute square of the wave function is interpreted as an actual matter density.
A multiresolution analysis (MRA) or multiscale approximation (MSA) is the design method of most of the practically relevant discrete wavelet transforms (DWT) and the justification for the algorithm of the fast wavelet transform (FWT).
In string theory, modular invariance is an additional requirement for one-loop diagrams. This helps in getting rid of some global anomalies such as the gravitational anomalies . Equivalently, in two-dimensional conformal field theory the torus partition function must be invariant under the modular group SL(2,Z) .
For example, the spectrum of the (,) WZW model is built from highest weight representations, plus their images under the spectral flow automorphisms of the affine Lie algebra. [ 6 ] If G {\displaystyle G} is a supergroup , the spectrum may involve representations that do not factorize as tensor products of representations of the left- and right ...
Renormalization is a collection of techniques in quantum field theory, statistical field theory, and the theory of self-similar geometric structures, that are used to treat infinities arising in calculated quantities by altering values of these quantities to compensate for effects of their self-interactions.