Ethics of DNA research on human remains: five globally applicable guidelines.

We are a group of archaeologists, anthropologists, curators and geneticists representing diverse global communities and 31 countries. All of us met in a virtual workshop dedicated to ethics in ancient DNA research held in November 2020. There was widespread agreement that globally applicable ethical guidelines are needed, but that recent recommendations grounded in discussion about research on human remains from North America are not always generalizable worldwide.

Podcasting in Medicine: The Current Content by Emergency Medicine Subspecialty.

Background Podcasts and their use in medical education, particularly emergency medicine (EM), are growing and becoming more popular. Many podcasts focus on EM, but the number of podcasts on each EM subspecialty remains unknown. Therefore, the goal of this study was to ascertain the number of podcasts available by EM subspecialty and collect the basic characteristics of each podcast.

Thread spray mass spectrometry for direct analysis of capsaicinoids in pepper products.

Thread spray ambient ionization uses single threads as a medium for sampling and ionization. This approach was demonstrated through the detection of various capsaicinoids from the interior of pepper fruits without destruction of the sample. Pepper residues present on the thread were analyzed by the application of DC voltage and solvent to cause field-induced charged droplet generation.

Direct Biofluid Analysis Using Hydrophobic Paper Spray Mass Spectrometry.

Ambient electrostatic paper spray ionization from a hydrophobic paper occurs when a DC potential is applied to the dry paper triangle. Online liquid/liquid extraction of small organic compounds from a drop of biological fluid present on the dry hydrophobic paper is achieved with an organic spray solvent in under 1 min and utilizes in situ electrostatic-spray ionization for more efficient detection of extracted molecules. Direct analysis of small volumes of biofluids with no sample pretreatment is possible, which is applicable in point-of-care analyses.