Hydrosilylation of fatty acid methyl esters (FAMEs) were efficiently catalyzed by Speier's and Wilkinson's catalysts in the case of vinylic acid esters, but less efficiently in the case of non-vinylic ones, which gave non-regiospecific additions. In the latter case, initiation by radicals led to regiospecific reactions for oleic esters (C10-silylation). This regiospecificity can be attributed to the higher stability of the C10-silylated adduct and of the corresponding radical intermediate. Only regioselective addition was observed for linoleic esters (C13-silylation % 70%, C10 % 20%, C9 % 10%). Molecular modeling was used to examine the stability of the isomeric products and radicals. The new concept of radical initiation sequence has been successfully applied to FAMEs and then was extended to crude fish oil.

This work ultimately pays careful consideration to a method that respects the environment, and that can be developed across the accumulation of research to reduce the corrosion of metals in sea water. Extracts of Ziziphus lotus (wild jujube) were tested as a corrosion inhibitor of copper in sea water, using polarization methods and weight loss measurements. We also present by SEM the morphology of copper surface analyzed after immersion in inhibited and uninhibited electrolytes. The inhibition efficiency of Ziziphus lotus extracts was calculated and compared. We note good agreement between these methods. The obtained results revealed that the tested inhibitor significantly reduced the kinetics of the corrosion process of copper. Its efficiency increases with the concentration, and attained 93% at 5 g/L. The effect of temperature on the corrosion behavior of copper in natural sea water was also studied in the range of 293 K and 323 K, to determine thermodynamic data of activation.

Absolute and allometric growth of Houbara Bustard (Chlamydotis undulata undulata) were studied. Using body weight measurements from hatch till 120 days of age, the Gompertz-Laird growth model was used to describe the growth pattern of the Houbara. Whereas the model underpredicted the hatching weight (34 vs 40 g), the predicted asymptotic body weight was in concordance with the data (1193 g). The same growth model was also used to describe the growth pattern of beak and shank length, chest girth and wing span. The beak reached asymptotic length faster than the shank, chest girth and wing span. We used the log transformed relationship of Huxley to determine the allometric relationship of beak length, shank length, chest girth and wing span relative to body weight from hatch to 120 days. The allometric growth analysis indicated that, beak length, shank length, chest girth and wing span all followed a hypometric allometry (b<1) relative to body weight growth. However, the wing span has the highest allometric growth compared to the other measurements indicating the evolutionary importance of developing wings for quick flights from predators.

Absolute and allometric growth of Houbara Bustard (Chlamydotis undulata undulata) were studied. Using body weight measurements from hatch till 120 days of age, the Gompertz-Laird growth model was used to describe the growth pattern of the Houbara. Whereas the model underpredicted the hatching weight (34 vs 40 g), the predicted asymptotic body weight was in concordance with the data (1193 g). The same growth model was also used to describe the growth pattern of beak and shank length, chest girth and wing span. The beak reached asymptotic length faster than the shank, chest girth and wing span. We used the log transformed relationship of Huxley to determine the allometric relationship of beak length, shank length, chest girth and wing span relative to body weight from hatch to 120 days. The allometric growth analysis indicated that, beak length, shank length, chest girth and wing span all followed a hypometric allometry (b<1) relative to body weight growth. However, the wing span has the highest allometric growth compared to the other measurements indicating the evolutionary importance of developing wings for quick flights from predators.