The mobility of Cu, Pb and Zn in harbour sediments was investigated using single, sequential and kinetic extraction techniques. Each type of extraction provides different information on the mobility of these elements in the environment. The single HCl extraction assesses general mobility, the sequential extraction assesses geochemical partitioning and kinetic extraction allows quickly and slowl...

Sunlight provides energy for photosynthesis and help in synthesis of carbohydrates required for the regulation of plant development. Plant scientists are studying the role of light in plant development, in the biogenesis of chloroplast and in signalling between chloroplast and nucleus. The simple carbohydrates produced during photosynthesis are used as energy by plant for biosynthesis of primar...

Keyphrases efficiently summarize a document’s content and are used in various document processing and retrieval tasks. Several unsupervised techniques and classifiers exist for extracting keyphrases from text documents. Most of these methods operate at a phrase-level and rely on part-of-speech (POS) filters for candidate phrase generation. In addition, they do not directly handle keyphrases of ...

Because toxicities may differ for Cr(VI) compounds of varying solubility, some countries and organizations have promulgated different occupational exposure limits (OELs) for soluble and insoluble hexavalent chromium (Cr(VI)) compounds, and analytical methods are needed to determine these species in workplace air samples. To address this need, international standard methods ASTM D6832 and ISO 16...

Text mining used on texts and publications in the biomedical molecular biology fields is referred to as "biomedical text mining." It a relatively new area of study at intersection computational linguistics, bioinformatics, natural language processing. Superior usefulness goal sequential pattern identify statistically significant patterns among data instances when values are presented sequential...