Degradation of haloaromatic compounds

An ever increasing number of halogenated organic compounds has been produced by industry in the last few decades. These compounds are employed as biocides, for synthetic polymers, as solvents, and as synthetic intermediates. Production figures are often incomplete, and total production has frequently to be extrapolated from estimates for individual countries. Compounds of this type as a rule are highly persistent against biodegradation and belong, as "recalcitrant" chemicals, to the class of so-called xenobiotics. This term is used to characterise chemical substances which have no or limited structural analogy to natural compounds for which degradation pathways have evolved over billions of years. Xenobiotics frequently have some common features. e.g. high octanol/water partitioning coefficients and low water solubility which makes for a high accumulation ratio in the biosphere (bioaccumulation potential). Recalcitrant compounds therefore are found accumulated in mammals, especially in fat tissue, animal milk supplies and also in human milk. Highly sophisticated analytical techniques have been developed for the detection of organochlorines at the trace and ultratrace level

EFEKTIVITAS MANAJEMEN KOMITE SEKOLAH DALAM PENGELOLAAN PENDIDIKAN

This study aims to see how effective school committee management is in managing education. The method used is library research or commonly called library research in which research data is obtained from books and other literature both print and online which are then analyzed theoretically-philosophically. The results of the study show that one of the determining factors in maintaining the quality of education is involving the school committee, namely by involving it massively in every process that exists in every school. Because, his presence can contribute positive suggestions, thoughts, ideas and ideas, which can be the basis for doing something even better in the management of an educational institutio

Structure of an extracellular polysaccharide produced by Lactobacillus rhamnosus strain C83

International audienc