The parameter δ still controls the intensity of the attack: D x,y,σ) is raised by |δ| in such a way that the altered value D′ x,y,σ) in now greater than the contrast threshold.
Let C be the contrast threshold set by the SIFT algorithm (usually by default C = 0.03); the attack reduces |D x)| by |δ| in such a way that the altered value drops below C. The size of є depends on the spatial support of the targeted keypoint: the larger the support, the stronger the attack.
But the altered values weren't tied intrinsically to the symbols.
After logarithmic transformation of PPT, we performed z transformation as previously described (Wylde et al. 2012) in order to analyze the proportion of altered values.
In particular, morphological characterization of cells in various tissues was obtained in terms of cellular/nuclear ratio and asymmetry, finding altered values in both adenomas and adenocarcinomas compared to healthy tissue.
The goal of this task is to identify the regulatory proteins or controlling factors which are critical for the robustness and integrity of the biological system by iterating simulations with altered values of substrate/enzyme concentrations or kinetic constants.
There have been changes to these tests to a large number of subjects included in the study, and there have been cases in which, though the usual tests were within normal limits, infants developed symptoms, with no altered values of these laboratory tests (up to 72 hours).
In an effort to ensure that infants were not inadvertently exposed to levels of oxygen saturation beyond the range usual care (85%to9595%), the algorithm used for the altered-pulse oximeters gradually reverted back to actual (non-altered) values when readings were less than 84%, or higher than 96%, in both treatment groups.
Following a context manipulation, one would expect to see alterations or remapping of place fields, followed by altered reward value signaling by the dopamine neurons.
In agreement with evolutionary models of aging, our results suggest that cancer is not rate-limited by the occurrence of oncogenic mutations as postulated by the current model of carcinogenesis, but its incidence instead is tightly linked to the evolution of lifespan and is promoted by altered selective value of oncogenic mutations that accumulate over lifetime in aged tissues.
The altered Km values could indicate that some mutations affect the substrate binding sites in the enzyme, possibly also leading to altered substrate specificity.
