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Biomedical subjects

A Albu

Publications and source records attributed to A Albu.

35 records · Page 2Linked to original sources
PubMedDate not supplied

[Illumination in schools, a health problem for the developing body].

The relationship between lightening degree in schools and vision problems was investigated in a series of 500 pupils (aged between 11 and 14 years) from both rural and urban areas, schooled in 21 different classrooms. The tests revealed that natural lightening is observing the health standards in a percentage of 100% in the urban classrooms and is deficient with 16.64% in the rural ones. Artificial lightening is inappropriate in all investigated classrooms (both rural and urban). Vision, estimated by visual acuity test, proved to be more affected in the rural areas (14% of the children) where lightening conditions are more deficient, than in the urban pupils (12.8%). It was also noticed that the active detection index of vision disturbances is lower in the rural as compared to urban pupils (5.7% and 28.12%, respectively). School lightening should be a priority in the public health programs.

Adolescent↗
PubMedDate not supplied

The effect of +Gz acceleration upon lactate, pyruvate and some nucleotides in the nervous tissue of the guinea pig.

The present paper was designed to the study of the effects of hypoxia induced by positive accelerations upon energy metabolism in the brain. Variations in the amount of lactate, pyruvate, ATP, ADP and AMP were determined immediately after centrifugation and after intervals of 30 to 90 minutes. An increase in the quantity of lactate and pyruvate, and a diminution of ATP running parallel to an increase in AMP were noted immediately after centrifugation. These variations almost entirely disappeared 90 minutes after centrifugation. These findings drew attention to a possible imbalance of the neuronal energy processes, which might bring about, even for short periods, alteration of the neuronal function.

Acceleration↗