In this lecture we survey advanced denoising techniques. Unlike the Wiener filter which is an optimal linear estimator given the second order statistics of the noise and signal, the methods we consider in this lecture are non-linear and relies on a different prior, the sparsity one. Though it is used in many image processing problems, for the simplicity of the discussion we consider here only t...

Purpose: To evaluate using transcription analysis the presence and importance of two genes: NM23-H1 and TIMP-1 on control of tumor cell invasion in diffuse astrocytomas (WHO II) and glioblastoma multiforme (WHO IV). Method: Northern blot analysis of NM23-H1 and TIMP-1 was performed. Eight diffuse astrocytomas and 19 glioblastomas (WHO IV) were analyzed to determine if TIMP-1 and NM23-H1 were ca...

Knowledge of the sequence of morphogenetic changes in the development of sporangia and spores in the watermolds was first arrived at by traditional -and sometimes rather imprecise -cytological methodology (Chapter 12) or by simple observational means (Chapters 7, 8). In either case, the resulting information was limited in scope, but it is now possible by analyzing elements of the subcellular s...