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Biomedical subjects

M Durek

Publications and source records attributed to M Durek.

4 recordsLinked to original sources

Hypothermia and acute renal failure in the elderly.

During 1993-1998, in winter time 14 elderly patients: 8 female and 6 male aged 65-88, were treated because of hypothermia. Rectal temperature on admission was 20-34.9 degrees C. Sopor was present in 2 and various grades of coma were present in 10 patients. Arterial hypotension was recorded in 5, and shock in 9 patients. Increased serum creatinine level was found in 8 patients. The mean rectal temperature in the whole group was 31.3 degrees C +/- 4.7, ranging from 20.0 to 34.9 degrees C, and the mean serum creatinine level was 172.2 +/- 93.5, in range of 66.0 to 360.0 mumol/L. Negative correlation between those two parameters was found: r = -0.572. In 2 of them parameters of renal failure were analyzed: urine sodium concentration, creatinine urine/plasma ratio, urine osmolality, urine/plasma osmolality ratio, renal failure index and fractional excretion of filtered sodium. In one of the patients all parameters were within the range of functional oliguria, in an other the urine sodium concentration serum showed acute renal failure, but all other findings showed borderline values between functional oliguria and acute renal failure. Twelve out of 14 patients died within 1-216 hours from admission.

Acute Kidney Injury↗

[Ergonomics of computer programs].

There are many different factors to be taken into account while planning, designing and implementing user interface to a new programme. The most important factors are price, quality, documentation, installation and ergonomic properties of software. Ergonomic aspects are classified into two groups. One group deals with problems of direct human-computer interaction e.g. sort of dialogues, screen layout, response time. The other deals with problems of flexibility, consistency, structuring. Out of a number of ergonomic factors, some of the most important are listed in this paper.

Ergonomics↗

Health status of personnel occupationally exposed to radiowaves.

The findings of medical examinations performed in two groups of persons occupationally exposed to microwaves and radiofrequency radiation are presented in comparison with control findings. A group of 49 radar operators from the Zagreb Air Traffic Control was examined twice within a period of 18 months. The other group comprised 46 workers employed in radio relay stations. The control group were 46 workers from the Zagreb Airport. A follow-up study showed significant changes in haematological and biochemical parameters, in electrical brain activity and in capillaroscopic and ophthalmological findings in the group of radar operators within the followed period. For that group a cross-sectional study of the differences in general health status also showed the highest rate of changes. The results indicate that long-term occupational exposure to microwaves and radiofrequencies may damage sensitive organic systems.

Health Status↗