The results of the survey were as follows: sample rate P=1.47%, standard error Sp=0.65%, rate of entrapment 1.47%+0.65%, and 95% confidence interval (0.20%-2.74%).

Results The LD_ 50 of chlorophacine-Na in M.unguiculatus was 0.325 mg/kg and the standard error was 0.058 . The confidence limit on 95% was ( 0.325± 0.085 )mg/kg.

Results the squared multiple correlations of multiwavelength standard equation is more than single wavelength standard equation's, but the standard errors of prediction are less.

As a result, according tothe different age grouping, the standard errors of estimate to the different age grouping, the standarderrors of estimate ranged from 0. 8 to 2. 6 years (2 teeth from the same individual), 0. 6 to 2. 3 years(3～4 teeth from the same individual).

Conclusion:The more accurate regression coefficients and the standard errors were obtained by adjusting the weight and the center effect in general linear model.

Results Z14 (FFP) was obvious at α=0 05. After deleting the non obvious factors from the model, regression coefficient, standard errors, wald, P and RR were 0 065, 0 024, 7 493, 0 006 and 1 067 respectively. There was no difference of survival time between living liver transplantation and cadaver liver transplantation. The relative dangerous degree in cadaver liver transplantation was 0 340 as much as that in living liver transplantation.

The "standard deviation" and "standard error of arithmetic mean" that being easy to cause confusion are accurately described and distinguished from the meaning, characteristic, formula of calculation and symbolization etc. The symbolization of "mean±standard deviation" and "mean±standard error of mean" in the expression of statistics result are analyzed.

~(125)I-LDL binding, internalization and degradation values in healthy human skin fibroblasts were 66±11, 350±70, and 1710±279 ng/mg cell protein respectively.

The pooled weighted sensitivity and specificity of FDT with 95% confidence intervals (95% CI) after correction for standard error were 0.86 (0.80-0.90) and 0.87 (0.81-0.91), respectively.

The standard error of determination of the active form of IAA by our method is 1.5-2.0 times less than that using the traditional method.

It is shown that the standard error in the measurements does not exceed 0.1log(η).

The total relative standard error for applying the method to 20 synthetic samples in the concentration ranges of 20-400 ng/mL Co(II), 60-400 ng/mL Ni(II), and 4-400 ng/mL Cu(II) was 1.53%.

However, stochastically independently selected specimens show a larger deviation than the standard error of the calibration.

According to the calculations, the measurement of the levels of, e.g., oil, petroleum products, and underlying water is possible with relative standard errors of the order of 0.1-1%.

For most of the stars, the standard errors in the Mg abundances do not exceed 0.07 dex.

As the error of aerosol imaginary index is within 0.01, standard errors of aerosol optical depth and vegetation reflectance solutions for 14 spectral channels from 410 nm to 900 nm are respectively less than 0.063 and 0.063 and 0.023.

And as the radiance error is within 2%, the standard errors are less than 0.023 and 0.0056.

In case of the homogeneous atmosphere, standard errors of the 120060 upward fluxes from the present model are 1.08% and 1.04% for clean and turbid aerosol models, respectively; and those of the downward fluxes are 4.12% and 3.31%.

With manual ROIs, the %ID (mean±standard error of mean) was 4.32±0.167 for A, 4.14±0.165 for B and 3.28±0.139 for C.

Eighteen consecutive patients (12 men, 6 women; mean age 43.6 [standard error of mean, 3.3] years) with 3 prolapsed irreducible piles were prospectively recruited.

Statistical constants like mean, standard deviation and standard error of mean have been calculated.

METHODS: Fifty-two consecutive patients (43 males; mean age, 40 (standard error of mean, 2) years) with perianal abscesses were randomized to treatment by either incision and drainage (controls; N=28) or fistulotomy (N=24).

A method for estimating the standard error of mean citation rates per publication is proposed and examplified on journal impact factors.

Whether there exists a definite relationship between hypertensive states and the activity of serum cholinesterase (S-ChE) remains a problem of controversy. In the present study the S-ChE activity of 101 "normal" and 35 hypertensive dogs was determined by photometric method. The average value (±S. E.)of "normal" dogs is 29.9±0.8 units, which has been shown to be significantly(P<0.001)lower than that of hypertensive dogs, i. e. 37.1±1.1 units. After oral administration of the Rauwolfia alkaloids, 1—10 mg/kg/day,...

Whether there exists a definite relationship between hypertensive states and the activity of serum cholinesterase (S-ChE) remains a problem of controversy. In the present study the S-ChE activity of 101 "normal" and 35 hypertensive dogs was determined by photometric method. The average value (±S. E.)of "normal" dogs is 29.9±0.8 units, which has been shown to be significantly(P<0.001)lower than that of hypertensive dogs, i. e. 37.1±1.1 units. After oral administration of the Rauwolfia alkaloids, 1—10 mg/kg/day, in 12 hypertensive dogs and similarly after reserpine, 0.01 mg/kg/day, in 2 hypertensive dogs the S-ChE activity decreased significantly together with a remarkable fall of the blood pressure. 2 normal dogs receiving the alkaloid 5 mg/kg/day showed neither significant decreases in the blood pressure nor any fluctuation in the activity of S-ChE. The depression of the enzymic activity in hypertensive dogs thus appeared to be correlated with the blood pressure.

Neriifolin is a cardiac glycoside isolated from the kernels of Thevetia neriifolia Juss. Diacetylneriifolin was obtained by acetylation of neriifolin. The minimum lethal doses of neriifolin and diacetylneriifolin in pigeons were found to be 0.217±0.008 mg (s.e.)/kg and 0.649±0.024 mg/kg respectively. Therefore, the biological potency of neriifolin was reduced by diacetylation. Furthermore the onset of action of diacetylneriifolin became slower than neriifolin; and it possessed a greater cumulative action than...

Neriifolin is a cardiac glycoside isolated from the kernels of Thevetia neriifolia Juss. Diacetylneriifolin was obtained by acetylation of neriifolin. The minimum lethal doses of neriifolin and diacetylneriifolin in pigeons were found to be 0.217±0.008 mg (s.e.)/kg and 0.649±0.024 mg/kg respectively. Therefore, the biological potency of neriifolin was reduced by diacetylation. Furthermore the onset of action of diacetylneriifolin became slower than neriifolin; and it possessed a greater cumulative action than neriifolin. In experiments in pigeons, diacetylneriifolin showed sedative effect in small doses, and induced hypnosis or anaesthesia in large doses, but neriifolin did not give any such effect. Diacetylneriifolin prolonged the hexobarbital-sleeping time and antagonised the excitatory action of caffeine in mice receving intraperitoneal does of 1.0mg/kg.Hence it was a depressant of central nervous system.

Studies were carried out in Peking during 1962—1964 to investigate the mortalities of egg and larval stages and the relationship between the number of egg masses and the size of larval populations in a total of 12 fields of spring-sown corn during the whorl-stage. On the basis of the survival rates of both egg and larval stages of these fields as well as data on the effect of larval density on yield loss, a method for estimating yield loss caused by corn borer and the control index at whorl-stage were discussed....

Studies were carried out in Peking during 1962—1964 to investigate the mortalities of egg and larval stages and the relationship between the number of egg masses and the size of larval populations in a total of 12 fields of spring-sown corn during the whorl-stage. On the basis of the survival rates of both egg and larval stages of these fields as well as data on the effect of larval density on yield loss, a method for estimating yield loss caused by corn borer and the control index at whorl-stage were discussed. The following points are shown. (1) The 12 fields observed during the 3 year period showed a fairly wide range of egg and larval populations. These variations were due to the fluctuation in natural borer population in different years and the different planting dates in a given year. (2) The mean and its standard error of the per cent eggs hatched was 57.± 2.9%. while that of the larval survival rate was 5.64±0.89%. A measure of correlation showed that the number of eggs per 100 plants is positively correlated with the number of mature larvae. The comlimed survival rate and its standard error of both egg and larval populations was 3.4±0.51%. The flducial limits of the mean at a confidence level of 95% is 3.4±1.17%. (3) Current studies on the relationship between borer population and yield loss of corn by various workers have shown that the reduction in yield of corn infested at whorl-stage was sigficantly greater than that of the ear-stage. Thus the loss in yield due to borer infestation could generally estimated from records on the number of borers of the first generation. If the 5% loss in yield per borer per plant was used as an average reduction rate, then the loss in yield from an infestation having a particular egg mass count could be estimated by yield loss (%) = [(No. egg masses per 100plants× 31.7)× (0.034±0.012)] × 0.05 where 31.7 is the average number of eggs per egg mass. From the view-point of economic gain, a reduction rate of 1.5% probably will be valid as the critical control level, i. e., above which treatments should be made. The cumulative total number of egg masses per 100 plants that corresponds to this reduction rate is roughly 24. (4) The present writer have previously shown that the cumulative total of egg masses per 100 plants (X) during entire whorl stage is proportional both to the per cent of plants receiving one or more egg masses or the frequency index (P) (P = l e—0.00985x0.9984) and the highest number of egg masses found on any one day (Y) (Y = 0.352 x — 2.721). On the basis of these equations, it is calculated that this egg mass count corresponds to a frequency index of 21% or a number of 6 egg masses per 100 plants at the peak of egg deposition. Therefore, either a frequency index of 21% or a 6 egg masses count found at any one day during whorl stage may be used as an critical index for insecticidal treatment.