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Biomedical subjects

W Berndt

Publications and source records attributed to W Berndt.

At least 19 recordsLinked to original sources
PubMed1990

Comparison between Topcon SL-45 and SL-45B with different correction methods for factors influencing Scheimpflug examination.

Topcon Tokyo manufactured the first series of SL-45 in 1980 and a second in 1982/83, which were completed in Bonn with all technical improvements developed so far. In 1987, the SL-45B was manufactured which included all previously added improvements. To compare both camera types, we carried out a test with 10 volunteers and the following technical variables for the SL-45: (1) miosis; (2) mydriasis; (3) flashbulb 1; (4) flashbulb 2; (5) film batch 1; (6) film batch 2, and (7) different types of film. Afterwards, 5 of these volunteers were photographed with the SL-45B. Photographer and reader were identical in all cases. Based on microdensitometry it could be demonstrated that, with the exception of a different film type, all variables can be compensated for by using the corneal peak as an external standard.

Anterior Eye Segment↗
PubMed1985

[Basic school problems for the physically handicapped].

Describing the current status of the "school for the physically disabled" and the developmental tendencies observable in this type of school, the author in particular contrasts recently evolved practice with the existing legislative and administrative orientations. It is found that on account of demographic and socio-medical developments and pressures, actual practice has gone far beyond the administrative framework, entailing a need to catch up in terms of conceptual thinking and administrative provision. This need to catch up essentially pertains to conceptual integration of the consequences that arise from the inclusion of students with increasingly severe disablement, to questions of occupational outlook for physically handicapped students with learning disabilities, adequate conclusions as regards creating a flexible organizational structure in the individual school, as well as the problems involved in statutory provision relative to the necessary paramedical services and the linkages between therapy and education, also in terms of cooperation between school and public health services.

Child↗
PubMed1984

Dependence of renal protein reabsorption on glomerular filtration rate and infusion time.

Egg-white-lysozyme was infused into rats intravenously to achieve plasma concentrations of lysozyme (PLy) in the range of 10-3,500 mg X l-1. Concentrations of inulin and lysozyme in plasma and urine samples were determined spectrophotometrically. The glomerular filtration rate (GFR) was measured as clearance of inulin. The lysozyme reabsorption rate (TLy) was calculated as the difference between the filtered load and excreted amount of lysozyme. TLy increased with increasing filtered loads of lysozyme up to 1,000 micrograms X min-1 whether the increase in load was caused by an increase in PLy or GFR. These TLy were not dependent upon lysozyme infusion time. At lysozyme loads above saturation of reabsorption (1,000 micrograms X min-1) TLy was dependent on GFR and on the passed time after onset of lysozyme infusion. The results of this study indicated that the transport rate of lysozyme is a function of PLy, GFR and duration of lysozyme delivery to tubular cells.

Absorption↗
PubMed1982

[The concept of retardation: is it up to describing very profound cerebral disabilities? (author's transl)].

The widespread terminological habit of describing and explaining even very profound disabilities along the conceptual lines of developmental retardation is critically appraised and commented. Emphasis is given to essential, if often unidentified or unsaid, implications of this explanatory approach, i.e. the assumption of common characteristics in the "retarded" person and the "non retarded" younger person, implying the optimistic fiction of a contigency for "catching up" on present developmental delays. This conceptual model is discarded as representing a deceptive euphemism, springing from the absence of an anthropology that posits acceptance of a human being regardless of his or her being different without challenging the fact of his or her humanness and intrinsic rights.

Adolescent↗
PubMed1980

[The changing situation of the school for the physically disabled owing to the rising numbers of most severely and multiply disabled pupils (author's transl)].

The author outlines a group of disabled who are suggested to be inadequately covered by the usual targets of rehabilitation (reintegration in the labour market, independence in the activities of daily living, starting a family--in short: "normality"), because of the presence of severe and extensive disabilities or disability combinations. Starting from an analysis of the living situation these children are facing in their childhood, and a projection on the living situations to be expected in adulthood, the essential principles of an educational concept are developed which, at the price of departure from established educational ideas, is intended, ideally, to enable the course of education to be adjusted to the living situation of the individual. These individualised programmes must be based on an established right to being different, and insistence on the inalienability of equal value and equal rights as a task of education in the schools for the physically disabled.

Child↗