Sometimes I Worry

Commentary I: skin cancer: clear skies sometimes help.

My Software has a Vulnerability, should I worry?

(U.S) Rule-based policies to mitigate software risk suggest to use the CVSS score to measure the individual vulnerability risk and act accordingly: an HIGH CVSS score according to the NVD (National (U.S.) Vulnerability Database) is therefore translated into a “Yes”. A key issue is whether such rule is economically sensible, in particular if reported vulnerabilities have been actually exploited ...

Viruses and Apple Propagation: Why Should I Worry?

Several viruses can cause devastating diseases in domestic apple (Malus x domestica Brokh.). Major viruses affecting apple production in New York are apple chlorotic leaf spot virus (ACLSV), apple stem pitting virus (ASPV), apple stem grooving virus (ASGV). These viruses are common and generally latent; in other words, they do not cause acute symptoms on most commercial cultivars. However, when...

"Pitfalls in Diffusion: What Artifacts Should I Worry About?"

This presentation covers the sources of many common diffusion image artifacts. Some of these arise from the limitations of single-shot echoplanar imaging (EPI), including low spatial resolution, blurring effects of T2* decay and T2 decay occurring during image readout, and sensitivity to artifacts due to Nyquist ghosting, chemical shift, magnetic field inhomogeneity, and local susceptibility ef...

Cardiac troponin I elevation in subarachnoid hemorrhage: Should we worry?

Andrew M. Naidech, MD, MSPH; Kurt T. Kreiter, PhD; Nazli Janjua, MD; Noeleen D. Ostapkovich, MS; Augusto Parra, MD, MPH; Christopher Commichau, MD; Brian Fred M. Fitzsimmons, MD; E. Sander Connolly, MD; Stephan A. Mayer, MD From the Departments of Neurology (A.M.N., K.T.K., N.J., N.D.O., A.P., C.C., B.-F.M.F., S.A.M.) and Neurosurgery (A.P., C.C., B.-F.M.F., E.S.C., S.A.M.) Columbia University ...