From the Editor

Dear Friends,

After more than two years of isolation broken only by virtual meetings and talking to our computers when presenting papers at conferences, finally it looks like things are starting to get back to normal and the world is carefully opening for travel.

That is why we decided that it is time to have the PAC World conference in Prague, Czech Republic from 20 to 23 of June 2022 and the PAC World Americas conference in Raleigh, USA from 22 to 25 August 2022 – both as in-person events. However, considering that for many people it may be still difficult to travel we are going to have an option for remote participation of attendees.

I am happy to inform you that as a result of the call for papers we have received many abstracts from all continents. This means that we are going to have a very exciting conference, so we hope that you will join us and we are looking forward to seeing you in the Prague. Early registration is now open, so don’t waste any time and take advantage of the reduced fee. You can further benefit from the group registration, so if you are interested in coming together with some of your colleagues, please send us an email to for details.

The call for papers for the PAC World Americas conference is still open, so you can send us an abstract at with a brief description of your accomplishments and challenges that you would like to discuss with your peers at the conference.

We hope that many of you are going to join us for this year’s conferences.

Dr. Alexander Apostolov