Teaching with cadavers outside of the dissection room using cadaveric videos

The rise of Information and Communication Technologies and Computer Assisted Instruction have led to the adoption of digital visual learning aids to improve anatomy instruction. Creation of cadaveric video resources surged during 2020–2021 as they provided one option to continue teaching anatomy using cadaveric specimens in a time when all in-person practical teaching was prohibited to maintain safety during the Covid-19 pandemic. Cadaveric videos are relatively inexpensive to create and with the correct set up can be filmed independently by one anatomist. This makes cadaveric videos a feasible option for anatomists to create using their own specimens and tailored to their own curriculum. The use of cadaveric videos is not limited to instances where practical teaching is not an option and can provide an excellent supplementary exercise. Using cadaveric videos in conjunction with in-person dissection sessions could enhance student’s self-efficacy, promote autonomous learning and reduce the likelihood of students experiencing cognitive overload while learning in the dissection room environment. However, sharing resources that contain cadaveric material online should be approached with caution and anatomists should ensure they have a secure method of distributing cadaveric video content to the intended audience only

The first UK measurements of nitryl chloride using a chemical ionization mass spectrometer in central London in the summer of 2012, and an investigation of the role of Cl atom oxidation

The first nitryl chloride (ClNO2) measurements in the UK were made during the summer 2012 ClearfLo campaign with a chemical ionization mass spectrometer, utilizing an I− ionization scheme. Concentrations of ClNO2 exceeded detectable limits (11 ppt) every night with a maximum concentration of 724 ppt. A diurnal profile of ClNO2 peaking between 4 and 5 A.M., decreasing directly after sunrise, was observed. Concentrations of ClNO2 above the detection limit are generally observed between 8 P.M. and 11 A.M. Different ratios of the production of ClNO2:N2O5 were observed throughout with both positive and negative correlations between the two species being reported. The photolysis of ClNO2 and a box model utilizing the Master Chemical Mechanism modified to include chlorine chemistry was used to calculate Cl atom concentrations. Simultaneous measurements of hydroxyl radicals (OH) using low pressure laser‐induced fluorescence and ozone enabled the relative importance of the oxidation of three groups of measured VOCs (alkanes, alkenes, and alkynes) by OH radicals, Cl atoms, and O3 to be compared. For the day with the maximum calculated Cl atom concentration, Cl atoms in the early morning were the dominant oxidant for alkanes and, over the entire day, contributed 15%, 3%, and 26% toward the oxidation of alkanes, alkenes, and alkynes, respectively