Edited by Thomas E. Phillips University of Missouri

Selected postings from the Microscopy Listserver from May 1, 2018, to June 30, 2018. Complete listings and subscription information can be obtained at . Postings may have been edited to conserve space or for clarity.

Microscopy Listserver: need to re-subscribe!

A new set of legal rules, namely the General Data Protection Regulation or GDPR ( ), is propagating around the world concerning internet privacy. T ese rules are being applied universally to any entity that communicates with groups of people using the Internet. At the moment it technically only applies to individuals in the European Union but will likely will be extended in some form to all countries worldwide in the not-to-distant future. Since information about you (that is, Name, Affi liation, Email address) is being stored in the Microscopy Listserver Database, the GDPR regulations can be interpreted to also apply to the Microscopy Listserver. T ese rules are detailed, and non-compliance can result in penalties of up to $25M if not followed. T us, in order to comply with the GDPR, which took eff ect on May 25, and also to err on the side of safety (I don’t have $25M, but wish I did), it will be easiest (for me) to have all individuals reconfi rm their desire to be a Microscopy Listserver subscriber. So for the fi rst time in 25 years, I must ask every active subscriber to revisit the Microscopy.Com WWW site and renew their subscription. All active subscriptions will be nullifi ed in the existing DBase later today (May 20, 2018). My apologies to those of you who have been a long-term subscriber, as well as those of you who have recently subscribed. Because of the number of users on the Listserver, this is the simplest way to proceed. Below is the URL to the subscription page. Just copy and past the URL into your WWW browser and reenter your contact information. T is (re)subscription has to be done as if you are a “new” subscriber. Your (re)subscription will serve to indicate your consent to continue sending you email from the Microscopy Listserver as required by the GDPR. T is email also reconfi rms to you that the Microscopy Listserver DataBase information, as has been the policy for the past 25 years, will not be shared with any entity and will only be used to send you correspondence from

and related to the Microscopy Listserver, its subscribers, or its operations. You may, as previously, unsubscribe at any time using the online forms on the WWW site ( http://microscopy. com ) by providing your active subscription email address. T e FAQ page remains available for questions, or you may also send a direct email to me ( ). Sorry for the hassle and bureaucracy. Nestor Zaluzec Sun May 20

Microtomy: ultramicrotome arm retraction

We are experiencing an issue with our Leica EM UC7 ultramicrotome during the return stroke. T e instrument does not seem to be performing the 0.2 mm retraction during the return stroke, causing the previous cut sample to be picked back up by the knife edge. Does anyone know what adjustment needs to be made and where (inside the instrument presumably)? T e instrument seemed to be operating fi ne aſt er the last preventative mainte- nance (PM) by Leica, but now it is doing the same thing as before the PM. If anyone has drawings, a procedure, or a video that shows how to make the adjustment (or tighten a component), it would be very much appreciated. Clayton Loehn Mon Jun 11 T is won’t be of any help to you, just a commiseration. My Leica UC7 is stuck. It won’t reset, arm won’t retract, and knife stage won’t retract by using the coarse advance knob. I have two red lamps that are winking at me, that’s about it. T e problem is intermittent and so far unfi xable. Debra Townley Wed Jun 13

LM: plant tissue for science project

I am a high school biology teacher with a student question. My student has asthma, and her mother, a nurse, had a drawerful of expired inhalers that they wanted to put to use for her 9th-grade science project. Using a syringe, they injected plant seedlings with the steroid


doi: 10.1017/S1551929518000809 • 2018 September

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