PubMed Health⌕ Search

Biomedical subjects

H J Wolff

Publications and source records attributed to H J Wolff.

12 recordsLinked to original sources
PubMed1981

[Hygienic quality of lakes which are used as open-air bath. 2. Communication: Comparison of biochemical typed Escherichia coli strains isolated from lake water and bird excrements (author's transl)].

368 strains of Escherichia coli were isolated from lakewaters and bird excrements (mainly black-headed gulls) using mandatory methods for drinking water examination. All strains were further characterized by 43 biochemical physiological and 30 morphological features. Besides the API 30 E Enterobacteriaceae system and the Roche Enterotube system of biochemical testing were used comparatively. The analysis using numerical methods for taxonomy pointed out that a single biotop could be characterized by the small physiological variation of the strains.

Animals↗
PubMed1980

[Hygienic quality of lakes which are used as open-air bath. I. Communication: seasonal variation of total colony count, the number of Escherichia coli and coliforms (author's transl)].

Four lakes situated in the recultivated area of the Rhenish brown-coal district were examined bacteriologically during a period of one year. Total colony count and the number of Escherichia coli and coliforms were determined and compared with the influence of meteorological factors and human and animal impacts.

Animals↗
PubMedDate not supplied

[Homes for the aged and nursing homes in North Rhine-Westphalia].

In the last hundred years demographic change has altered the age composition of the overall population. In particular there was a marked rise in the number of older people (65 years and over). In Germany the proportion of the total population aged 65 years and over increased from 4.6% in 1871 to 15.1% in 1977. The current demographic-geographical situation of the proportion of the aged, homes for the aged and nursing homes in the different districts of North Rhine-Westphalia is presented. Since 1979 there has been an increase of 17,122 in the number of beds available in nursing homes. In North Rhine-Westphalia a total of 49,536 beds in nursing homes were available on 1.9.84, i.e. 2.08 beds per 100 aged (65 years and over), while the intended index is 2.3 beds per 100 aged. The number of places in homes for old people was 58,236 on 1.9.84, i.e. 2.45 places per 100 aged. The intended index (2.80 places per 100 aged) is nearly reached, although the regional differences are considerable.

Aged↗