John COHEN

JC

Activity

  • John COHEN replied to Ruth Rita
    3D Heart Animation

    If you can see the animation (not all browsers work, maybe) all you need to do is click and hold your mouse cursor anywhere on the image, and you should be able to rotate it to see better inside. JJ

  • John COHEN replied to Sam Greasley
    Introduction to Anatomy & Physiology

    Glad to hear that, Sam. We've had lots of medical library people in the course. They say it adds a novel perspective; would you agree? JJ

  • John COHEN replied to Clara Morales
    Week 1 Overview 1

    We are very happy you are enjoying the course! JJ

  • John COHEN made a comment
    What sources of information can you rely on?

    The once fiercely-independent US agencies--the FDA, the CDC, the NIH--have been politicized in ways that must be familiar to most of us here. So I tend to trust the New York Times, some of whose analytical studies of COVID-19 spread exceed the government's in coverage and sophistication. John Hopkins University's statistical site is excellent for comparing...

  • John COHEN replied to Jenny H
    Risk communications and engagement

    A good example of this is the warning "Don't touch your face!" The real message is, don't touch your mucous membranes, where virus can infect, so keep your fingers out of your eyes, nostrils and mouth.

  • John COHEN made a comment
    How infectious is the virus?

    It's a pity FL doesn't seem to be able to show subscripts; R0 isn't what you see elsewhere, but R followed by a tiny subscript nought. Could fix that in the HTML if it's available to the authors. And I've seen Re much more than Rt as the effective R value after t=0, can you explain the difference?

  • John COHEN made a comment
    How can we test for infection?

    The nasopharyngeal swabbing process requires a lot of skill to get a valid sample, and exposes the technician to significant risk. One paper from Yale found recently that saliva is just as good, or possibly better. We know how to sample saliva, why isn't that used more?

  • John COHEN replied to Maryirene Ibeto
    Overview of the coronavirus and COVID-19

    Yes. My daughter was in Toronto during the worst of SARS, and I was well aware of MERS later on because SARS had sensitized us to the risk of coronaviruses.

  • John COHEN made a comment
    How unique are you?

    I opted not to do this, because for example I have no idea what detached earlobes means; something like a detached house? Earlobes that you take off at bedtime? And for all I know, you're about to reveal that tongue-rolling is tightly linked to automobile theft.