Dew points of quaternary ethane + carbon dioxide + water + methanol mixtures — Measurement and modelling

Dew points have been measured for eight ethane + carbon dioxide + water + methanol mixtures at pressures from 0.11 to 2.17 MPa and temperatures from 249.0 to 288.7 K. The results are analysed in terms of a predictive excess-function equation of state (EF-EOS) method based on the zeroth approximation of Guggenheim's reticular model. This method can be used to adequately predict the dew points of the mixtures in the temperature and pressure ranges used in the present study. In fact, the model reproduces the experimental dew point temperature data with ≤3.1 K average absolute deviation.Key words: dew point, equation of state, excess function.

[Histological and immunological aspects of allergic and non allergic nasal mucosae. A study of 64 biopsies (author's transl)]

Optical and immunofluorescent microscopy was used to examine 52 pathological nasal mucosae (41 allergic, 11 non-allergic), and the results were compared to the clinical, biological and allergic findings. It was noted that there were a large variety of histological lesions in each group of patients, their extent being related much more to the duration and severity of the aggression than to their nature. There appears to be a relation between the extent of the anatomical lesions and immunological activity, non-allergic mucosae being low in immunoglobulin levels.