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Biomedical subjects

R Beck

Publications and source records attributed to R Beck.

At least 181 records · Page 10Linked to original sources
PubMed1982

[Breast feeding under different nutritional and nursing conditions. Analysis of 644 newborn infants, 1979-1981].

The effects of different nutritional patterns and nursing conditions on the form of newborn feeding were retrospectively analysed. A comparison was made of 644 infants born between 1979 and 1981. Feeding in 1979 was based on a regime adapted from Kellner. Gradual increase in feeding in the first days of age was resumed as of 1980.--The percentage of breast-fed newborns was affected by feeding plans. Gradual increase of daily food supply caused increase in the number of breast-fed children. Close contact between mother and child, as in being enabled by the partial rooming-in system, was found to be the strongest stimulation for breast feeding.

Adult↗
PubMed1982

[Coincidence of lethal B-streptococcal disease of newborn with acute puerperal polyarthritis of mother due to infectious allergy (author's transl)].

Reported in this paper is a lethal B-streptococcal disease of a newborns which grew manifest as meningitis. It had been caused by Type Ic B-streptococci. The same pathogen was isolated from the mother's vaginal secretion. The mother fell sick with acute allergico-infectious polyarthritis, ten days after birth. This coincidence between infection of the newborn and the mother's puerperal disease is discussed.

Adult↗
PubMed1981

An ultrastructural examination of early ventral root formation in amphibia.

The morphology of early interactions between neural tube and myotome in the amphibian embryo and tail regenerate was examined using the electron microscope. Two types of contacts were observed. At the most primitive level where the myotome was yet unsegmented, multiple adhesive-type contacts linked neural tube and myotome. In newly segmented areas early ventral roots were recognizable as small bundles of one to five axons extending the short distance to the myotome. There was only one bundle per segment and in addition to axons, each bundle always contained one or more primitive glial cell processes which accompanied axons as they left the cord. At points of root exit primitive glial processes appeared to funnel axons into the root. The cytoarchitecture of the cord and the new roots suggested that the primitive glia may play a role in pathfinding for motor axons as they leave the cord and extend toward their targets.

Animals↗
PubMed1980

[Experimental liver and kidney surgery with CO2, CO, holmium, and neodym lasers. Cutting effect, hemostasis, histopathology, and healing (author's transl)].

Various laser devices (CO2, CO, Nd: YAG, and holmium: YAG lasers) have been used on pig livers and on dog kidneys for comparison with conventional surgical instruments (electroscalpel, cryoscalpel, and scalpel). CO2 and CO lasers caused the least tissue damage, followed by the holmium laser; severe damage was caused by the Nd: YAG laser. The order was reverse for coagulative effect. The conventional reference instruments showed a weaker hemostatic effect. Surfaces cut by laser healed in four to eight weeks without complications. Remnants of charred tissue in various quantities could still be detected after eight weeks in all cases where CO2, CO, and Nd: YAG lasers had been used. This obviously did not affect scar formation.

Animals↗
PubMed1980

Early heart failure as a cause of growth and tissue disorders in children with congenital heart disease.

Height, weight, total body fat, lean body mass, size of fat cells and total number of lipid-containing fat cells were compared in two groups of children, ages 2-6 years, with congenital heart disease. Twelve children who developed heart failure in infancy made up one group and 14 asymptomatic patients made up the other. No patient was cyanotic or had undergone surgical repair. Patients with heart failure were shorter and lighter than asymptomatic patients. Whereas both fat and lean tissues were less in the heart failure group, reduction in body fat was more important in producing underweight. Although there was no difference in the size of fat cells, the number of lipid-laden fat cells was diminished in the children who had early heart failure. Thus hypocellularity of fat cells appeared to be the major determinant of diminished body fat with heart failure. Because shortness and decreased lean tissue were associated with these adipose tissue abnormalities, it is likely that widespread changes are caused by early heart failure. As previously reported with hypoxemia, the early development of heart failure seems to produce tissue changes that handicap growth.

Adipose Tissue↗
PubMed1979

Preselection of alarms in a hybrid system for screening of cervical cancer.

In this report, a preselection of alarms in a system for automated screening of cervical cancer based on depositing the cell sample linearly as a "cell trace" on a tape and analyzing it at different decision levels with increasing complexity, and preliminary results on analyzing cervical material with this system are discussed. The "cell trace" is analyzed with the slit-scan technique. Six parameters are computed: 1) cellular diameter; 2) nuclear diameter; 3) nuclear fluorescence (acriflavin-Feulgen) as nuclear DNA; 4) cellular fluorescence; 5) nuclear to cytoplasm ratio (N/C ratio); and 6) nuclear density. At present, only nuclear fluorescence is used to define a decision boundary between normal and potentially atypical cells. Under this criteria the slit-scan analysis leaves 5% of the events in a sample that must be rechecked at a second decision level in normal cell samples. A further reduction is expected when several slit-scan parameters are used at the first decision step. All events declared suspicious will be investigated in more detail by a two dimensional image analyzing system where the fluorescence image is generated by a laser scanning system. Results obtained in preliminary experiments are discussed in this paper.

Computers↗
PubMed1979

Six ways to add more space.

In today's cost-conscious climate, hospitals frequently are finding it advantageous to expand an existing facility rather than erect a new one. A number of expansion alternatives are described herein, and the benefits and liabilities of each are delineated. Whatever construction alternative is chosen, the decision should be arrived at through a comprehensive consideration of the alternatives by all members of the building team--hospital, architect, and contractor.

Decision Making↗
PubMed1979

[The psychophysiology of the visual thought perception of visually evoked brain potentials and recognition mechanisms].

The study tries to demonstrate, that the combination of the actualgenetic method (Sander, Froehlich), and the VEP, allows a systematic and differentiated analysis of the psychophysiological process of visual thinking. A student group was compared with mental retardates in VEP and EOG, watching actualgenetically manipulated picture series. Phasic EEG-changes are significantly related to the identification process. Most sensitive are amplitude changes about 120 to 270 msec. The mental retardates had significant VEP changes 180--270 msec, the students 128--192 msec after picture presentation. The process factor analysis (Pawlik) elaborated an illumination factor and two factors being labelled general reaction set. VEP averaging over the persons revealed different attention and/or discrimination behavior for the student group and the mental retardates, identifying the picture objects.

Adult↗
PubMed1977

[Serum enzymes and HBsAg in families with viral hepatitis].

Examinations of all families affected with viral hepatitis confirmed by enzyme screening tests by means of incubation and also by the test for HBAgs were carried out in a town district in the course of 7 years. 1. After triple biochemical examinations repeated always after 14 days, changes in the serum enzymes (SGPT, ALD, LDH) were stated in 15% cases from the total of 4328 persons from 1332 families. In the control group no changes were found. 2. From the number of 2215 persons from 726 families 32% were HBAgs-positive in CFT. Simultaneous evidence of HBAgs and enzymes changes were stated in 162 persons (7,4%). 3. Changes in the enzymes as well as simultaneous evidence of HBAgs were especially stated in children. Findings of HBAgs alone prevailed in the adults (P greater than 0,001).

Adolescent↗