More than 100 years ago, a young girl named Virginia O'Hanlon wrote a letter to Santa Claus. 1 A newspaper reporter, impressed by the girl's innocence, edi-torialized this quest to believe in a fantasy representing good in the world by penning the famous line, " Yes, Virginia, there is a Santa Claus. " This story came to mind a few weeks ago, when I was having breakfast with my daughter-in-law ...

Wherever there is cancer, there will be blood and blood vessels to support tumor growth. While the majority of anticancer drugs are designed to directly kill tumor cells, recent strategies are focusing on drugs that indirectly kill cancer cells by targeting the tumor microenvironment and tumor vasculature. This strategy gained a significant boost with the approval of the angiogenesis inhibitor ...

The choice of programming language, the approach by which students are taught and the software tools made available to students have been controversial issues in many ways. While there once was a consensus of some sort within the computer science education community, it is much more difficult to find common ground among those of us who teach introductory programming courses. The literature is e...

In this note, we study the distribution of earthquake numbers in both worldwide and regional catalogs: Global Centroid Moment Tensor catalog, from 1980 to 2019 for magnitudes Mw 5. 5+ 6.5+ first case, Italian instrumental catalog 1960 2021 4.0+ 5.5+ second case. A subset global is also used Japanese region. We will focus our attention on short-term time windows 1, 7, 30 days, which have been po...