<?xml version="1.0" encoding="UTF-8"?><oembed><type>video</type><version>1.0</version><html>&lt;iframe src=&quot;https://www.loom.com/embed/7c53ca8ec3454980af3d051fdff0745a&quot; frameborder=&quot;0&quot; width=&quot;1920&quot; height=&quot;1440&quot; webkitallowfullscreen mozallowfullscreen allowfullscreen&gt;&lt;/iframe&gt;</html><height>1440</height><width>1920</width><provider_name>Loom</provider_name><provider_url>https://www.loom.com</provider_url><thumbnail_height>1440</thumbnail_height><thumbnail_width>1920</thumbnail_width><thumbnail_url>https://cdn.loom.com/sessions/thumbnails/7c53ca8ec3454980af3d051fdff0745a-1709572420384.gif</thumbnail_url><duration>412.563</duration><title>How-to: Add a &amp;quot;None&amp;quot; Level to a DOE Factor</title><description>In this video, I will guide you through creating a DOE design where one of the levels of a factor is none. I will demonstrate how to add liquids to a defined liquids and plates element, define mixtures in the DOE, and set up factors to test different buffer options. The video includes step-by-step instructions and important data for each process. No action is requested from the viewers, but it provides valuable information for designing experiments.</description></oembed>