The low frequency (LF), high frequency (HF), ratio of low frequency and high frequency (LF/HF),total power (LF+HF), MAP, HR and SpO_2 were recorded before anesthesia (T0), after intubation (T1), incision of skin(T2), 1 h after the begining of operation(T3), after the completion of operation(T4) and extubation (T5).
The results showed that the values of low frequency (LF) and the ratio of low to high frequency (LF/HF) within initial 15 min of myocardial ischemia in survivor or SCD group respectively were significantly higher than those within initial 15 min of sham operated in sham group LF(ms 2/Hz):198.8±41 3 or 226 7±56 4 vs 65.4±19.6,all P <0.01;
RESULTS:As compared with those at T0,LFnorm was significantly decreased at T2,T3,T4,T5 and T6 ( P <0.01),LF/HF reduced markedly at T1,T2,T3 and T4 ( P <0.05), but HFnorm,TP,HF and LF were no significant change at group CA.
The absorption band edge of the crystal lattice shifts to lower frequency area because of the dopant Co2+, and there is an absorption peak at 1.9THz and the absorption coefficient is more than 70cm-1, the force constant K of F--Co2+ ionic chemical bond stretch vibration calculated from this peak is 3.40×10-2 N/cm.
The group theory analysis shows that there are 9A_g , 10B_(1g), 11B_(2g), 12B_(3g) Ranam-active modes under approximation of neglecting internal vibration modws of D_2O in CMC. These Raman vibration modes have been measured in lower frequency range.
The low-frequency terms in the expansion involve an independent fractional Brownian motion evaluated at discrete times or, alternatively, partial sums of a stationary fractional ARIMA time series.
These decompositions have a multiscale structure, independent Gaussian random variables in high-frequency terms, and the random coefficients of low-frequency terms approximating the Gaussian stationary process itself.
A piezoelectric actuated prestage driver of hydraulic servo valves for the low-frequency response of electrohydraulic servo valve electromagnetic prestage driver was presented.
The identification of the geometrical character of a flaw is then given by the two dimensional inverse Born approximation in a low-frequency range.
The results obtained indicate that free radicals generated in the field of ultrasonic cavitation play a decisive role in the inactivation of CAT, which takes place when its solutions are exposed to low-frequency ultrasound.
After the modification, the lower frequency limit is 10-3 Hz for the generator, 10-2 for the spectrum analyzer, and zero (dc) for the oscilloscope.
CpG, CpA, and TpG sites, which are potential targets for mutagenesis, were found at a much lower frequency in mobile elements than in structural genes.
However, considering the concomitant diseases, in the corresponding industrial subgroup a clear trend towards lower frequency of rapid acetylators was demonstrated.
This finding was consistent with theR7 allele distribution pattern in the populations of Eurasia, characterized by higher frequency in the West and lower frequency or absence of the allele in the East.
The analysis of the frequencies of GSTT1 and GSTM1 polymorphisms among different age groups showed a lower frequency of negative genotypes in the older group, although not statistically confirmed.