Anaesthetic Agents and the Ozone Layer

Adverse reactions to anaesthetic agents.

Sir,—Even though some small changes in heart rate were shown to be statistically significant, no clinical significance was attached to such changes. The study was primarily done to assess the overall need of anticholinergic premedication in patients undergoing minor surgery and as such drugs were not administered on a weight basis. However, Dr Gilmour's comment has aroused our interest in this ...

Tsallis’ q-triplet and the ozone layer

Keywords: Nonextensive statistical mechanics Meta-stable states Mixing Weak chaos q-triplet Stratospheric ozone a b s t r a c t Tsallis' q-triplet [C. Tsallis, Dynamical scenario for nonextensive statistical mechanics, Physica A 340 (2004) 1–10] is the best empirical quantifier of nonextensivity. Here we study it with reference to an experimental time-series related to the daily depth-values of...

Toxicity of inhalation anaesthetic agents.

Although hundreds of compounds on the chemist's shelf are known to produce anaesthesia, relatively few are used clinically. The requirements for a clinically useful anaesthetic agent are necessarily stringent and include: a wide margin of safety, total reversibility of anaesthetic effect and an absence of long-term toxicity. In addition, a successful inhalation anaesthetic agent must combine th...

Ozone Layer Depletion

Halogens and polar boundary-layer ozone depletion

1 Geophysical Institute and Department of Chemistry, University of Alaska Fairbanks, Fairbanks, AK, 99775-6160, USA 2 School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, UK 3 National Institute of Water and Atmospheric Research, Private Bag 14–901, Wellington, New Zealand 4 British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 0ET, UK 5 McGill University...