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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal style='margin-bottom:6.0pt'>I am releasing a new version of SEDNTERP. This release is intended as an interim fix to the current dilemma: SEDNTERP version 2 from Univ. New Hampshire was never really finished, and many labs consider it too buggy to rely on, and thus have continued to use the old SEDNTERP version 1.09 (the last release of version 1). However, SEDNTERP version 1.09 is a 16-bit program using mid-1990’s technology and it will not run under Windows 10. <o:p></o:p></p><p class=MsoNormal style='margin-bottom:6.0pt'>This new version is a re-do of SEDNTERP version 1.09 (with the old user interface). I have ported the version 1.09 code to a newer 32-bit compiler, while trying to minimize code changes to avoid introducing new bugs. To avoid confusion with UNH version 2, and to allow this version to be installed in parallel with version 2 and/or version 1.09, I am calling this new version “SEDNTERP 1” version 1.10. The installer can be downloaded from <a href="http://www.jphilo.mailway.com/download.htm">http://www.jphilo.mailway.com/download.htm</a> This version will run under Windows versions from Win 10 back to XP.<o:p></o:p></p><p class=MsoNormal style='margin-bottom:6.0pt'>For those labs that have been using the UNH SEDNTERP 2 beta, note that unfortunately this new version cannot use the database file format employed by version 2. (Perhaps in the future it will be possible to either convert those databases or read them directly, but no promises.)<o:p></o:p></p><p class=MsoNormal style='margin-bottom:6.0pt'>In order to make this version run under Windows 10 it was also necessary to re-make the Help file (user manual) in the newer HTML Help format. I have extensively re-organized and edited the Help file, added images of the forms and dialog boxes, and added material and references to cover some features that had never been described.<o:p></o:p></p><p class=MsoNormal style='margin-bottom:6.0pt'>This new version also corrects a minor (and quite subtle) bug that David Hayes recently uncovered, one which actually was present in versions 1.00-1.09. This bug arose only when SV experiments were run at temperatures other than 20 degrees, and involved failing to temperature-correct the vbar value used in calculating f/f<sub>0</sub> ratios (as displayed on the Results page). This bug however would normally cause errors of <= 1% in the f/f<sub>0</sub> ratio, which is negligible compared to the effects of the uncertainty in vbar and/or the sedimentation coefficient.<o:p></o:p></p><p class=MsoNormal style='margin-bottom:6.0pt'>This version does have a few improvements over version 1.09: <o:p></o:p></p><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-bottom:6.0pt;margin-left:0in;mso-list:l0 level1 lfo1'>All the forms and dialog boxes are re-sizable. The font scaling isn’t perfect as you resize, but it works pretty well. There is also now a new default setting that can scale them all up (e.g. if you have a really high-resolution screen and thus the default size in pixels is just too small to read).<o:p></o:p></li><li class=MsoListParagraph style='margin-bottom:6.0pt;margin-left:0in;mso-list:l0 level1 lfo1'>Just about all the controls now show tool tips when you hover over them with the mouse.<o:p></o:p></li><li class=MsoListParagraph style='margin-bottom:6.0pt;margin-left:0in;mso-list:l0 level1 lfo1'>I added a new calculator that computes the diffusion coefficient from the molar mass and sedimentation coefficient (or the molar mass when both <i>s</i> and <i>D</i> are known). This is essentially the same calculator that is present in DCDT+ and SVEDBERG. <o:p></o:p></li></ul><p class=MsoNormal style='margin-bottom:6.0pt'>Please let me know if you find any bugs or have installation issues.<o:p></o:p></p><p class=MsoNormal style='margin-bottom:6.0pt'>Lastly I should say explicitly that updating SEDNTERP 1 does not mean that SEDNTERP 2 is dead. It is still our hope that the money and resources to complete that development can be found.<o:p></o:p></p><p class=MsoNormal style='margin-bottom:6.0pt'>Best regards,<o:p></o:p></p><p class=MsoNormal style='margin-bottom:6.0pt'>John<o:p></o:p></p></div></body></html>