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141.
Residuals for relative risk regression 总被引:2,自引:0,他引:2
142.
Regression analysis based on stratified samples 总被引:1,自引:0,他引:1
143.
Estimation in linear models with censored data 总被引:1,自引:0,他引:1
144.
Longitudinal data analysis using generalized linear models 总被引:186,自引:0,他引:186
145.
本文报道了在AppleⅡ型微机上实现核酸数据处理的一系列工作程序。应用这些程序,可进行核酸数据的贮存、对指定的核酸数据结构的改造、限制性内切酶识别位点的检索、核酸序列至蛋白序列的翻译、相关核酸序列及蛋白序列的同源性比较、氨基酸密码使用频率的统计和基因的启动子结构的初步探索等方面的工作。 相似文献
146.
Andrew W. West H.D. Burges R.J. White C.H. Wyborn 《Journal of invertebrate pathology》1984,44(2):128-133
Spores and parasporal crystals of a Bacillus thuringiensis var. aizawai (H-serotype 7), strain HD137, streptomycin-resistant mutant were added to acidic (pH 5.0) natural and autoclaved soil and incubated at ?0.10 MPa, 25°C. Populations of B. thuringiensis in both soil treatments showed exponential rates of mortality which were represented by linear regression, the loss of viability being greater in natural than autoclaved soil. In natural soil, parasporal crystal insecticidal activity was lost at a complex, nonexponential rate. The initial, rapid decrease of activity gradually slowed, and the level of activity stabilized at 10% of the original inoculum level after 250 days incubation, until the cessation of sampling at >2 years. In autoclaved soil no significant (P > 0.2) loss of parasporal crystal insecticidal activity was detected over the same period, which suggested that soil microorganisms were responsible for the loss of crystal insecticidal activity in the natural, nonsterilized soil. The rate of loss of crystal activity in natural soil correlated well with assay data reported in the literature using Galleria mellonella, which measures the combined activity of spore and crystal. In autoclaved soil correlation was poor, probably due to variability in the bioassay data. 相似文献
147.
George M. White 《Cell biochemistry and biophysics》1987,11(1):25-33
Computers, the human mind, and social systems have common problems of inadequate memory and insufficient data manipulation
speed. In each of these domains, information compression techniques have evolved to reduce storage and processing needs. Among
the techniques for information compression, coding of information in procedures stands out as exceptionally powerful. Procedural
information coding also gives rise to behavior that may be defined as intelligent. It is found in the human mind, in machines
and in social systems. Its use in human thought is aided by language development which promotes regular review of abstract
procedures. A practical consequence of better understanding of procedural information coding is the possibility of training
people to exhibit greater mental capacity, a controversial possibility. This paper explores the impact of data processing
resource limitations, data compression and procedural thinking in men and machines. 相似文献
148.
Peter R. Minchin 《Plant Ecology》1987,69(1-3):89-107
149.
Patterns of food evacuation in fishes: a critical review 总被引:5,自引:0,他引:5
Lennart Persson 《Environmental Biology of Fishes》1986,16(1-3):51-58
150.
The binding parameters of the oligomycin-sensitivity conferring protein (OSCP) in inside-out particles from beef heart mitochondria have been tested by means of two assays, the oligomycin-sensitive ATP-Pi exchange, and the oligomycin-sensitive ATP hydrolysis. The total number of OSCP binding sites in A particles was equal to 220 pmol/mg particle protein. Each mole of ATPase active site was able to bind 1.1 +/- 0.5 mol OSCP with Kd 1.7 nM. 相似文献