<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif">Thanks, Ed. You are exactly right. A friend of my daughter's in Boulder who is in her late forties but has some health challenges, felt ill back toward the middle of March. She called her doctor who then asked her to check her oxygen level. It was way below 90 and he then treated her for pneumonia (I think it was steroids). She later tested positive for the virus and she seems to be fully recovered. (This was before the Times story.) Smart doctor, and maybe there's a frustrating time lag before the public gets the news.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Apr 24, 2020 at 10:08 AM Edward Angel <<a href="mailto:angel@cs.unm.edu">angel@cs.unm.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><div style="word-wrap:break-word;line-break:after-white-space">The point is that if you check your blood oxygen level you might catch the problem before it is so bad that you have to be put on a ventilator and probably won’t survive.<div><br></div><div>Ed<br><div>
<span style="border-collapse:separate;color:rgb(0,0,0);font-family:Helvetica;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><span style="border-collapse:separate;color:rgb(0,0,0);font-family:Helvetica;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><div>_______________________</div><div><br>Ed Angel<br><br></div><div>Founding Director, Art, Research, Technology and Science Laboratory (ARTS Lab)<br>Professor Emeritus of Computer Science, University of New Mexico<br><br>1017 Sierra Pinon</div><div>Santa Fe, NM 87501<br>505-984-0136 (home)<span style="white-space:pre-wrap"> </span> <span style="white-space:pre-wrap"> </span><a href="mailto:angel@cs.unm.edu" target="_blank">angel@cs.unm.edu</a></div><div>505-453-4944 (cell) <span style="white-space:pre-wrap"> </span><span style="white-space:pre-wrap"> </span><a href="http://www.cs.unm.edu/~angel" target="_blank">http://www.cs.unm.edu/~angel</a><br></div></span></span>
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<div><br><blockquote type="cite"><div>On Apr 24, 2020, at 9:46 AM, <<a href="mailto:thompnickson2@gmail.com" target="_blank">thompnickson2@gmail.com</a>> <<a href="mailto:thompnickson2@gmail.com" target="_blank">thompnickson2@gmail.com</a>> wrote:</div><br><div><div style="font-family:Helvetica;font-size:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">Remind me, someone. Why are we all buying oximeters? I thought the burden of the Times article was that IF you are sick from a “cold”, don’t wait to test your O2 levels until you EXPERIENCE difficulty breathing, because by then it might be too late. Do you all have colds? I suppose, given that it takes Amazon six weeks to get one, you are wise to get a jump on it.<span> </span><u></u><u></u></div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><u></u> <u></u></div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">Nick<span> </span><u></u><u></u></div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><u></u> <u></u></div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">Nicholas Thompson<u></u><u></u></div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">Emeritus Professor of Ethology and Psychology<u></u><u></u></div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">Clark University<u></u><u></u></div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><a href="mailto:ThompNickSon2@gmail.com" style="color:blue;text-decoration:underline" target="_blank"><span style="color:rgb(5,99,193)">ThompNickSon2@gmail.com</span></a><u></u><u></u></div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><a href="https://wordpress.clarku.edu/nthompson/" style="color:blue;text-decoration:underline" target="_blank"><span style="color:rgb(5,99,193)">https://wordpress.clarku.edu/nthompson/</span></a><u></u><u></u></div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><u></u><u></u></div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><u></u> <u></u></div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><u></u> <u></u></div><div style="border-style:solid none none;border-top-width:1pt;border-top-color:rgb(225,225,225);padding:3pt 0in 0in"><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><b>From:</b><span> </span>Friam <<a href="mailto:friam-bounces@redfish.com" style="color:blue;text-decoration:underline" target="_blank">friam-bounces@redfish.com</a>><span> </span><b>On Behalf Of<span> </span></b>Roger Critchlow<br><b>Sent:</b><span> </span>Friday, April 24, 2020 9:40 AM<br><b>To:</b><span> </span>The Friday Morning Applied Complexity Coffee Group <<a href="mailto:friam@redfish.com" style="color:blue;text-decoration:underline" target="_blank">friam@redfish.com</a>><br><b>Subject:</b><span> </span>Re: [FRIAM] New information on COVID-19<u></u><u></u></div></div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><u></u> <u></u></div><div><div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><u></u> <u></u></div></div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><u></u> <u></u></div><div><div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">On Thu, Apr 23, 2020 at 8:32 PM Roger Critchlow <<a href="mailto:rec@elf.org" style="color:blue;text-decoration:underline" target="_blank">rec@elf.org</a>> wrote:<u></u><u></u></div></div><blockquote style="border-style:none none none solid;border-left-width:1pt;border-left-color:rgb(204,204,204);padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in" type="cite"><div><div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><u></u> <u></u></div></div><div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">I wonder if any of those cell phone pulsimeters could be upgraded to oximeters with some calibration?<u></u><u></u></div></div></div></blockquote><div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><u></u> <u></u></div></div><div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">There are a bunch of cell phone pulse oximeter apps that use the cell phone flash and camera, but I don't get the feeling that they've been calibrated much. It's a lot easier to write the code, call it entertainment, and reap the ad revenues that to actually determine what the measurement means in the general population. Some apps have even added some of the other pulse oximeter functions, perfusion, respiratory pleth, Then, again, <a href="https://www.ncbi.nlm.nih.gov/pubmed/2921597" style="color:blue;text-decoration:underline" target="_blank">https://www.ncbi.nlm.nih.gov/pubmed/2921597</a> says "<span style="font-size:10pt;font-family:Arial,sans-serif">Smartphone-based pulse oximetry is not inferior to standard pulse oximetry in pediatric patients without hypoxia. Reliability was superior for PBA compared with CBA, with more precise agreement for the PBA compared with the CBA. Future studies should test pulse oximetry apps in a hypoxic pediatric population." That was published in 2018.</span><u></u><u></u></div></div><div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><u></u> <u></u></div></div><div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">There's an interesting series of press releases from UIUC claiming that measuring someone's gait (with cellphone accelerometers) over a 6 minute walk is enough to get a good estimate of O_2 saturation, because people who aren't getting enough O_2 apparently walk funny.<u></u><u></u></div></div><div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><u></u> <u></u></div></div><div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">Here's an android app on github, <a href="https://github.com/YahyaOdeh/HealthWatcher" style="color:blue;text-decoration:underline" target="_blank">https://github.com/YahyaOdeh/HealthWatcher</a>, with some more method references, the <a href="https://github.com/topics/spo2" style="color:blue;text-decoration:underline" target="_blank">https://github.com/topics/spo2</a> listing has a bunch of arduino projects, too.<u></u><u></u></div></div><div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><u></u> <u></u></div></div><div><div style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif">-- rec --<u></u><u></u></div></div></div></div></div><span style="font-family:Helvetica;font-size:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline">.-. .- -. -.. --- -- -..-. -.. --- - 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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>Merle Lefkoff, Ph.D.<br>President, Center for Emergent Diplomacy<br><a href="http://emergentdiplomacy.org" target="_blank">emergentdiplomacy.org</a></div><div>Santa Fe, New Mexico, USA</div><div></div><div><a href="mailto:merlelefoff@gmail.com" target="_blank">merlelefkoff@gmail.com</a><br>mobile: (303) 859-5609<br>skype: merle.lelfkoff2<br></div><div>twitter: @Merle_Lefkoff<br></div></div></div></div></div></div></div></div></div>