Spread of Composite Pollutants in Shallow Waters of the Niger Delta

Experimental survey has been advanced on the effects of composite pollutants spread in shallow waters of the Niger Delta, using the Trans-Amadi creek as a case study. The analysis, which involves the identification of the nature of pollutants by the absorption photo spectrometer method and the Aitken Lagrangian interpolation model, shows that the contaminated water body, whose contaminants resulted from both human and industrial wastes consist of K, Mg, Mn, Fe, Zn and SO42- pollutants. The amount per litre of these elements in the sampled water were found to be higher than the United Nation recommended standards. The analysis shows that the spread follow a trend of the form: is the initial quantity deposited at the point y = 0. The overall analysis shows that K, Mg, Mn and SO42- were most predominant in the spread

Finishing the euchromatic sequence of the human genome

The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers ∼99% of the euchromatic genome and is accurate to an error rate of ∼1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead

Spread of Composite Pollutants in Shallow Waters of the Niger Delta

Experimental survey has been advanced on the effects of composite pollutants spread in shallow waters of the Niger Delta, using the Trans-Amadi creek as a case study. The analysis, which involves the identification of the nature of pollutants by the absorption photo spectrometer method and the Aitken Lagrangian interpolation model, shows that the contaminated water body, whose contaminants resulted from both human and industrial wastes consist of K, Mg, Mn, Fe, Zn and SO42- pollutants. The amount per litre of these elements in the sampled water were found to be higher than the United Nation recommended standards. The analysis shows that the spread follow a trend of the form: is the initial quantity deposited at the point y = 0. The overall analysis shows that K, Mg, Mn and SO42- were most predominant in the spread

Spread of Composite Pollutants in Shallow Waters of the Niger Delta

Experimental survey has been advanced on the effects of composite pollutants spread in shallow waters of the Niger Delta, using the Trans-Amadi creek as a case study. The analysis, which involves the identification of the nature of pollutants by the absorption photo spectrometer method and the Aitken Lagrangian interpolation model, shows that the contaminated water body, whose contaminants resulted from both human and industrial wastes consist of K, Mg, Mn, Fe, Zn and SO42- pollutants. The amount per litre of these elements in the sampled water were found to be higher than the United Nation recommended standards. The analysis shows that the spread follow a trend of the form: is the initial quantity deposited at the point y = 0. The overall analysis shows that K, Mg, Mn and SO42- were most predominant in the spread

Effect of alloy composition on the dendrite arm spacing of multicomponent aluminum alloys

Predictions of secondary dendrite arm spacing (SDAS) for multicomponent aluminum alloys using a dendrite ripening model are compared with experimental observations. For six of the seven alloys studied, the predicted SDAS was within 20 pct of the measured SDAS. It was found that the final SDAS was dependent upon both the solidification time and the solute profile of the solidifying alloys. It is interesting that while the solidification times and the solute segregation during solidification varied significantly over the range of alloys, these two factors largely canceled each other out so that the predicted SDAS did not vary much between the alloys. The experimental and modeling results show that elements causing high constitutional undercooling near the beginning of solidification, e.g., Ti, which reduces the grain size substantially, have little effect on the SDAS. Instead, it was found that elements that strongly partitioned toward the end of solidification were more effective at restricting SDAS coarsening