<div dir="ltr">A good reference which may provide you with an answer... I am sure many other people will provide more recent studies...<div><br></div><div>Enjoy !</div><div><br></div><div>Best,</div><div>Sacha</div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Aug 15, 2017 at 12:55 PM, Philip Koeck <span dir="ltr"><<a href="mailto:Philip.Koeck@ki.se" target="_blank">Philip.Koeck@ki.se</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Dear all.<u></u><u></u></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Is there any agreement on the cause of amplitude contrast when imaging proteins in cryo-TEM?<u></u><u></u></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Is it the second order term in the expansion of a weak phase object or is it due to inelastic scattering or the aperture or something else?<u></u><u></u></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Al the best.<span class="HOEnZb"><font color="#888888"><u></u><u></u></font></span></span></p><span class="HOEnZb"><font color="#888888">
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Philip<u></u><u></u></span></p>
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