Examples of using Light sum in English and their translations into Russian
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The light sum for their mixture appeared to be 4.4±0.7 See Table 1.
The right balance between light sum and average 24-hour temperature.
The antioxidant capacity was evaluated taking into account SOD,catalase and S light sum activity.
Let us denote light sum recorded in Fenton's reaction without a test sample as S0.
At greater dilutions(from -5 to -10) an average light sum for all examined substances was near 1.
Light sum of the mixture appeared to be larger than that of hemoglobin, but smaller than that hemoglobin.
A curious case occurs, when two substances, albumin and hemoglobin,giving different light sum, are mixed.
If the light sum and the temperature are imbalanced this will result in sub-optimal growth.
For a basic substance, which concentration 10 times as much,as 10 -1 dilution, light sum value is lower.
In the mixture of hemoglobin and albumin the light sum is greater than for hemoglobin, but is smaller than for albumin.
When studying chemiluminescence induced by Fenton's reaction we calculate light sum S for a test substance.
An average light sum of albumin solution- 12.4±2.1- substantially exceeds the light sum of hemoglobin solution- 4.0±0.5.
Their erythrocyte SOD level rises andthe indices of maximum luminescence intensity Imax and S light sum reduce significantly.
It is seen, that hydroperoxide decreases the light sum greater than the inhibitor at equal concentrations of the inhibitor and hydroperoxide.
Light sum(chemiluminescence intensity) in all cases was found to be maximum achieved under certain RH concentrations.
To assess the substance oxidation power, Fenton reagent is added to the substance, and the resultant chemiluminescence(light sum S) yield is measured.
Light sum S with a biological sample can increase, decrease or remain unchanged(in relation to S0) depending on the properties of a biological substrate.
The device showed maximum signal amplitude- Imax, light sum- S throughout the measuring period, and slope ratio of the trailing edge of radiation pulse- tgα.
It is impossible to draw an unambiguous conclusion on the antioxidant properties of some substance on the basis of the light sum value of the multicomponent substrate only.
The light sum, registered during hemoglobin oxidation for both concentrations of hydrogen peroxide, appears to be smaller than during oxidation of albumin.
It has been estimated, that in Fenton reaction, initiated by hydrogen peroxide, a light sum S is proportional to the ability of a substrate to be oxidized by hydroxyl radicals.
Thus, statistically significant increase in erythrocytes superoxide dismutase was revealed in group 2, andthe indices of maximum luminescence intensity Imax and S light sum were decreased.
It should be noted, that the light sum in the maximum of chemiluminescence at[H 2 O 2]=10 -3 mol/L is substantially greater than the maximal light sum at[H 2 O 2]=10 -1 mol/L.
In particular, in the study[2]for analysis there was used total yield of recorded radiation S(light sum), maximum luminescence intensity Imax and slope ratio of trailing edge of radiation pulse tgα.
We started measurements with light sum S recording at initial concentration followed by serial dilution by Hank's solution by 10 times obtaining light sums at the concentrations 1, 10 -1, 10 -2,….
Since a chain reaction induced by Fenton's reaction results in hydroperoxides ROOH formation, and luminescence occurrence, substrate oxidability is characterized by the concentration of accumulated hydroperoxides and a recorded light sum; however, light sum alone is unable to assess completely the substrate oxidability.
The light sum is seen to reach its maximum at -1 dilution, the light sum for the initial concentration(0 concentration) is smaller, while at more strong dilutions(-2, -3, -4) the light sum also decreases.
We analyzed the use of ferrous iron and the shape of chemiluminescent pulses arising from Fenton's reaction,yields of chemiluminescence(light sum) with hypothetical organic RH substance at different rate constant values of chain initiation, continuation and disconnection reactions in relation to RH substance concentration.
The riflescope has a number of modes to enhance image quality: Autocontrast mode and Sum Light mode.