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Biomedical subjects

V G Grigorian

Publications and source records attributed to V G Grigorian.

At least 19 recordsLinked to original sources
PubMed1990

[The value of quantitative analysis of neutrophil cation proteins in patients with infiltrative pulmonary tuberculosis].

A quantitative biochemical method of defining cation proteins (CP) in neutrophils was developed. An examination of 87 subjects (including 30 healthy persons) showed that neutrophil CP levels in patients with infiltrative pulmonary tuberculosis depends on the extension and phase of the ongoing process, inflammatory reaction acuity, bacteria excretion and lung tissue decay. The studies of CP in neutrophils may be a great help for defining a nonspecific reactivity of the body.

Adolescent↗
PubMedDate not supplied

[The EEG indices of the functional status of the operator in prolonged monotonous work at a computer].

The EEG data obtained in 4-hour experiments with simulation of monotonous performance at a computer display were analyzed. A certain difference in the dynamics of the functional state was revealed between the groups of subjects which differed in their background level of cortical activation. Practically the same performance efficiency in these groups was supported by different mechanisms: via self-regulation mechanisms in the subjects with a high initial level of cortical activity and by involvement of "self-correction" realized through activation of nonspecific subcortical brain structures. The development of the excessive stress in the second group of subjects expressed in an increase of theta rhythm power density indicated the higher "physiological cost" of monotonous operator's work for persons with low level of background cortical activation.

Adaptation, Physiological↗
PubMedDate not supplied

[Functional state of the autonomic nervous system according to the data of heart activity during performance of a computerized visual-spatial task].

The influence of the performance of a computerized visio-spatial task on the state of the autonomic nervous system of PC operators was studied. Statistical characteristics of the operator's heart rhythm during the 3-hour period of work on a computer were analyzed using Baevsky's method of variational pulsometry. The operators were classified in three groups by the character of their reaction to loading. It was suggested that the visio-spatial task performance on a computer could act as a stress factor only on a certain category of people.

Adult↗