Biological control, speed

Grow the green manure mustard on the area. It is said to speed up the life cycle. Biological control The nematode used for vine weevil (q.v.) may have some effect against wireworms. 

Validation studies conducted on dry-heat sterilizers can be divided into two basic components. One component envelops all the physical elements that must be qualified, such as temperature control, air particulate levels, and belt speeds. The other component is the biological constituent, which involves studies that prove that the process destroys both microbial and pyrogenic contaminants. 

The above examples open the way to exciting new developments of aptamers in the field of artificial control of gene expression. Access to automated selection platforms (Cox et al., 1998) should even speed up the identification of natural or modified aptamers of potential interest for biology and medicine. 

This handbook makes no attempt to describe environmental transport properties because these phenomena are specific to environmental conditions such as wind speed and water current velocity. A notable exception is the diffusion or permeation rate of a substance through biological membranes, which is the key process controlling dermal absorption and therefore a key determinant of the dose actually available to exert a toxic effect. Chapter 11 treats this topic. The reader seeking estimation methods for molecular diffusiv-ities in air and water should consult the text by Reed et al. (1987). 

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