RESUMEN
The Wavelet analysis of the time series of the number of insults per day and the variations of heliogeophysical indices was carried out. The patterns of Wavelet coefficients for both processes show a complex nonstationary behavior and the presence of periodic and acyclic constituents on different scales. During heliogeophysipal disturbances, the energy contribution to the processes increases more than threefold compared with the mean value on scales from three to five days.
Asunto(s)
Campos Electromagnéticos , Actividad Solar , Accidente Cerebrovascular/epidemiología , Algoritmos , Humanos , Incidencia , MatemáticaRESUMEN
Effects of geomagnetic disturbances on the rheological characteristics of blood and the homeostasis system were studies in 62 essentially healthy men. Rheological blood parameters, i.e. viscidity, hematocrit, fibrinogen, and erythrocyte and thrombocyte aggregation demonstrated statistically significant responses to alterations in the solar and geomagnetic activities. The authors raise a discussion about mechanisms of the physical processes in the near-Earth space on the blood rheological parameters.
Asunto(s)
Viscosidad Sanguínea/fisiología , Agregación Eritrocitaria/fisiología , Fibrinógeno/análisis , Agregación Plaquetaria/fisiología , Actividad Solar , Adulto , Hematócrito , Hemorreología , Humanos , Masculino , Persona de Mediana EdadRESUMEN
A correlation between variations in the medical parameters and the heliogeophysical indices describing physical processes during solar storms was established. It was proposed that one of the reasons for the biotropic effects observed is rheological shifts of human blood during enhancement of solar activity. The influence of heliogeophysical disturbances on the rheological properties of blood was investigated.
Asunto(s)
Enfermedades Cardiovasculares , Actividad Solar , Accidente Cerebrovascular , Enfermedades Cardiovasculares/sangre , Servicios Médicos de Urgencia/estadística & datos numéricos , Hemorreología/efectos de la radiación , Hospitalización/estadística & datos numéricos , Humanos , Moscú , Accidente Cerebrovascular/sangreRESUMEN
A substantial effect of geomagnetic storms on human health with a confidential probability P = 0.95 was revealed. The quantitative estimates of the biotropic effect are presented. For example, the frequency of occurrence of bursts exceeding the average number of hospitalized patients with mental and cardiovascular diseases during magnetic storms increases approximately 2 times compared with quiet periods (based on the data on 1983-84). The frequency of occurrence of myocardial infarction, angina pectoris, violation of cardial rhythm, acute violation of brain blood circulation during storms increases 2.1; 1.6; 1.6; 1.5 times, respectively compared with magnetically quiet periods (based on the data of 1992-96). A similarity of the seasonal distribution of the magnitude of the biotropic effect is revealed in the case of myocardial infarction and the number of magnetic storms: a maximum in the equinox and a minimum in summer.