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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Dear all-<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">It is with sorrow that I tell you that David Yphantis passed away April 15<sup>th</sup>, just two months after Lorna, his wife, died. David was one of the first researchers
to recognize the potential of applying computers to AUC data acquisition, analysis and interpretation. He, along with Denny Roark, Walt Stafford, Mike Johnson, Jack Correia and Jeff Lary, developed several software approaches for the analysis of AUC equilibrium
data. Along the way, David developed new centerpiece designs and laser-based interferometry. Working with relatively primitive CCD cameras, he was the first to automate data acquisition from the Model E interferometer.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">His students recall the level of rigor he brought to the classroom and to their research. Many of us have anecdotes from being in his lab or talking with him at workshops
or meetings. If you send me your stories, I will put them together to give to his daughters.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Best wishes,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Tom Laue<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal">Professor Emeritus<o:p></o:p></p>
<p class="MsoNormal">University of New Hampshire<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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