precursors


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precursors, (prēkur´sərz),

n.pl particles or compounds that precede something. In biochemistry, carbohydrates may serve as precursors for structural and functional molecules. The -blast suffix indicates the precursor cell of a structure, such as in the term odontoblast.
References in periodicals archive ?
The operation focuses on identification, monitoring and seizure of consignments of all illicit precursor chemicals especially Acetic Anhydride, Acetyl Chloride, Acetic Acid and Ammonium Chloride, being transported to Afghanistan.
The operation is focused on identification, monitoring and seizure of consignments of all illicit precursor chemicals especially Acetic Anhydride, Acetyl Chloride, Acetic Acid and Ammonium Chloride being transported to Afghanistan.
Rroot-shoot elongation assay clearly demonstrated that interaction of precursor and Rhizobium enhanced the root /hoot length, mass and IAA equivalents in root and shoot.
Mere possession of a precursor chemical or an essential chemical is not equivalent to possession or manufacture of dangerous drugs.
Countries in Africa and Asia where precursors like P-2-P and APAAN are relatively unknown continue to rely on ephedrine and pseudoephedrine to produce top quality methamphetamine.
Recently, there are many literatures about modification of PAN precursors using [gamma]-ray irradiation, but the dose is relatively small which not exceeds 400 kGy.
The individuals registered as business entities are banned to exercise movement and transportation of narcotic drugs, psychotropic substances and their precursors.
This realization prompted the investigators to examine the gene program within sperm precursors.
One drawback of CVD and ALD is that many of the precursors tend to be either pyrophoric or flammable and may be sensitive to air or water.
Finally, the proposal also aims to establish a European database on drug precursors that will list EU-licensed and registered businesses.
The main objective of the forum this year is identifying the importance of the precursors, the extent of the contribution of precursors and essential chemicals in the manufacturing of various drugs and the extent of local and international experience in dealing with the precursors, he said.
At present, SGL manufactures precursors via its joint ventures with Lenzing AG (FRA:LEN) and Mitsubishi Rayon Co Ltd that focus on industrial grade carbon fibres.