Mammographic images are used for detection of breast cancer in women. In this paper denoising algorithms for mammographic images in wavelet domain are considered. A modified approach for denoising of mammographic images using Diversity Enhanced Wavelet Transform has been proposed. Diversity of the Wavelet Transform is enhanced by taking different mother wavelets and different number of levels t...

Cells in an early embryo need to downsize their DNA. Ladouceur et al. show that a cell’s size and the size of its nucleus determine how small its chromosomes become (1). Like someone who’s moved from a house to an apartment, cells in an early embryo run into space limitations. The embryo remains the same size for its fi rst few divisions, so the cells have to become much smaller, shrinking by a...