Production of hyperpolarized H_{2} molecules from H[over →] atoms in gas-storage cells.

The preservation of the nuclear polarization of hydrogen atoms during the recombination to molecules was observed on different surface materials in the temperature range from 45 to 100 K and for magnetic fields up to 1 T. On a gold and a fused quartz surface, the expected molecular polarization of about 50% or lower of the atomic polarization was measured, while a surface layer of perfluoropolyether (Fomblin) shows a nearly complete preservation (at least 97%) of the atomic polarization during the recombination process. Further experiments have the possibility of storing polarized deuterium molecules and to use them in nuclear-fusion installations.

[Brush cytology and HPV detection in chronic laryngitis and papillomatosis].

Background: We investigated the utility of cytologic studies (including follow-up studies) in our specialty in determining the prevalence of human papillomavirus, specifically in the larynx. We utilized Papanicolaou's method of exfoliative cytology and in situ hybridization of the culture (biotin-marked DNA probes).

Patients: 486 patients with chronic hyperplastic laryngitis and 74 patients with papilloma were enrolled in the study.

[Cell patterns induced by human papilloma virus in samples sent to a cytodiagnostic central laboratory].

Virus induced changes occur not so rarely in combination with precancerous and cancerous lesions. We compared the cytological and histological findings. The increasing frequency of this event is demonstrated by an analysis of the material seen in our laboratory, smears from more than 120,000 patients per year.

[Morphological studies of the endocervical epithelium].

The three cellular components of endocervical epithelium were studied by means of optical light microscopy and electron microscopy. Particular attention was given to cytochemical responses to attempts by which to detect mucus in cylindrical epithelium. The beaker cells were grouped by stages by means of electron microscopy.