Method of assessment the degree of reliability of the pulse wave image in the rapid diagnosis of the human condition

Abstract

In the article a methods of results reliability increasing during diagnosing a person’s condition by pulse oximeter are considered. A new method of estimating the reliability of the measurement results of the parameters of the pulse wave and the method of tuning the optical part of the pulse oximeter are proposed. The use of this technique allows to make the insignificant of number errors influence on the measurements results. The experimental data about the various people condition research are presented.

Study of the impact of recultivated granite stone quarry dumps on the environment and agricultural land in the Leningrad region

“…According to the WHO, airborne particulate matter (PM2.5) is currently considered the best indicator of environmental impact. Longterm inhalation of air with a high content of particles with a diameter less than 2.5 μm with alveolar deposition in the human body leads to the progression of several diseases, which leads to a reduction in life expectancy by about 1 year on average [48][49][50][51][52][53][54][55][56][57][58].…”

Monitoring of soil pollution caused by industrial enterprises in one of the districts of St. Petersburg

“…Negative processes affect various components of the environment (air, water, green spaces and soils) [2,3,6,[8][9][10][11][12][13][14][15]. The sharp reduction of forests and green areas has led to a decrease in the ability to process emissions of carbon dioxide and other harmful substances [1,3,8,9,[16][17][18][19]. The development of large cities with extensive industrial areas reinforces this trend [7,17,[20][21][22][23].…”

Monitoring the water quality in our rivers in urban areas

“…Especially this impact strongly affects the nature near large cities [1,4,[9][10][11][12][13][14][15][16]. In addition to industrial enterprises, sources of pollution in these cases are power plants, motor transport, and others [11,12,15,[17][18][19][20][21][22]. A large number of emissions creates a difficult ecological situation [14,15,[18][19][20][21][22][23][24][25].…”

“…In addition to industrial enterprises, sources of pollution in these cases are power plants, motor transport, and others [11,12,15,[17][18][19][20][21][22]. A large number of emissions creates a difficult ecological situation [14,15,[18][19][20][21][22][23][24][25]. Rivers and reservoirs located in urban areas and suburbs of megacities are exposed to the strongest impact [1,4,20,[26][27][28][29][30][31].…”