A personal monitoring badge has been developed for the detection of the direct-acting, alkylating carcinogen beta-propiolactone at atmospheric concentrations as low as 6 ppb for 24-hour and 0.6 ppm for 0.25-hour exposure. The method employs the trapping reagent p-nitrobenzyl pyridine (p-NBP) absorbed on a cellulose thin-layer chromatography (TLC) strip. Deoxyguanosine can be used in place of p-NBP, but its lower limit of detection is 60 ppb for 24-hour exposure. The authors also obtained positive results with the carcinogens bis (chloromethyl) ether, chloromethyl methyl ether, diepoxybutane, dimethylcarbamoyl chloride, ethyleneimine, and glycidaldehyde. In practice, the TLC strip is positioned in a filmbadge holder. The TLC strip monitoring badges are easy to prepare; they should encounter no resistance of personnel to their use since they are not cumbersome. Monitoring at the end of an exposure is simple and requires no expensive equipment or specialized personnel.

Air Pollutants↗

PubMedDate not supplied

Taking a satisfactory cervical cytologic smear. Is it really an easy procedure?

OBJECTIVE: To evaluate the correlation between the experience of the cervical cytologic smear provider and the quality of the smears in terms of the percentages of satisfactory smears and contribution of the various factors affecting the smear's adequacy. STUDY DESIGN: A newly available quality control system was used to evaluate the adequacy of 4,000 smears. RESULTS: Of 4,000 smears, 660 (16.5%) were classified as "satisfactory but limited" or "unsatisfactory." Technical factors contributed 1.0%, while 15.5% were due to sampling factors, considered human errors. Thus, human error accounted for 90% of the total number of unsatisfactory smears. CONCLUSION: Greater experience with smear sampling is associated with fewer unsatisfactory smears. The results correlate directly with the total number of smears taken annually. Sampling skill improves in steps, with improvement limited beyond a certain point.

Adolescent↗

PubMedDate not supplied

[Professor Roger Rullière (1926-1998)].

Explore the source record for details and available documents.

France↗

PubMedDate not supplied

[The horrible end of J.K. Huysmans and the wearying genesis of the Foules de Lourdes].

The author is attempting to demonstrate the real correlation between the living of J.K. Huysman's last months and the algolagnia expressed through "Sainte Lydwine de Schiedam" and, particularly, "Les Foules de Lourdes". The author is bringing an exceptional document in the form J.K. Huysman's successive galleys ready for "Les Foules de Lourdes" printing where he delivered his ultimate and surprising corrections, chiefly to the viewpoint when he suffers grief like a "tremplin de joies" (steppingstone of delights).

France↗