Segregation ratio

From the microprobe analyses, mean solute concentration values were evaluated in dendritic and interdendritic areas. The segregation ratio (I) of the alloying element (x) from the centre of the dendrites (D) to the interdendritic areas (ID) was calculated as ... 

As shown by comparison between figures 6.9 and 6.11, nickel segregated less than chromium in the low alloy steels, the segregation ratio for the element having an inverse relationship with carbon. 

The segregation ratio, I, and partition ratios of chromium and nickel in the stainless and heat resistant steels are shown in figures 6.12 and 6.13. These ratios were defined in chapter 1 as follows ... 

Table 1.3. Segregation ratio between solid Si and Si-Al melt...

AZ is the difference in effective coordination number of a bulk site and a surface site, GptT, is the nearest-neighbour bond strength between Pt and Ti atoms (expressed as free energy, not enthalpy) and GptPti that between Pt atoms. With values derived from pure platinum and from PtgTi, the calculated values (13) of the segregation ratio (ie the ratio of surface and bulk concentration) vary between 2 x 10-7 for the (110) face to lO- for the (111) face at 800 K, and 5 x 10-12 to 2 x 10-7 for the same faces at 500 K. 

Uninhibited ALS Activity1 Segregation Ratio Re sistant/Sensitive... 

Pearn J (1978) Genetic studies of acute infantile spinal muscular atrophy (SMA type I) an analysis of sex ratios, segregation ratios, and sex influence. J Med Genet 15 414-417... 

Hybrids of Datura ferox [virus susceptible and hyoscine (23) producing] and D. stramonium [virus resistant and hyoscyamine (18) producing] produced vigorous virus-resistant plants that produced hyoscine, an alkaloid important in medicine. The Fi plants inherited the high alkaloid level of D. stramonium, but the oxidative ability of D. ferox. The segregation ratio in the F2 generation is 3 1 and hyoscine production is dominant (Waller and Nowacki, 1978). 

Figure 2.10b. Hyoscyamine (compound A) is converted in three steps to hyoscine however, only one reaction is gene governed. The segregation ratio in the Fi progeny is 3 1 (hyoscine to hyoscyamine plants). The hypothetical unsaturated intermediate has never been found, but in feeding experiments is transformed into hyoscine. T is tropic acid. (Our interpretation of Romeike s experiments, 1958, 1961, 1962.)...

F2 progeny—segregation ratios 9AB 3A 3B 1 without either compound. 

F2 progeny—segregation ratio is 9C 3B 4A, and A is divided into three plants which can transform the introduced B into C, and one plant that cannot perform this reaction (Figure 2.11). 

In interspecific crosses the segregation ratios can be so badly obscured by irregularities of gametogenesis that a proper evaluation of the results is impossible. Nevertheless, such results may yield data which can serve to confirm tracer experiments. 

The first manifestation of the disease might occur at any age as a rule the patients will live to adulthood. Long remissions have been observed. Familial occurence is seen frequently. Affected siblings mostly display a very similar course of the disease. The parents of patients almost invariably are free of symptoms. Segregation ratios in these families are in good agreement with the assumption of autosomal recessive inheritance (Hsia et al. 1962, Knudson and Kaplan 1962). 

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