Nanoparticles of iron oxide (Fe3O4) were obtained by Coprecipitation with synthesis time of 30, 60 and 90 min. The morphology of the samples was investigated by scanning electron microscopy (SEM) and structural characteristics were obtained by X-ray diffraction (XRD). The crystallite size was calculated from the spectrum X-ray diffraction with the application of the Scherrer equation and Winfit...

In some regards, the study by Travis et al. (1) on second cancers in long-term survivors of testicular cancer, reported in this issue of the Journal, is tantamount to unearthing a time capsule or encountering the forward ripple from a stone dropped in a pond long ago. This study is generally consistent with other reports from long-term cancer registries. In aggregate, these works demonstrate an...