Concentration Factors of Marine Products for Trans-uranic Nuclides

Heavy cluster decay of trans-zirconium "stable" nuclides.

By using the analytical superasymmetric fission model it is shown that all "stable" nuclei lighter than lead with Z > 40 are metastable relative to the spontaneous emission of nuclear clusters. An even-odd effect is included in the Zero point vibration energy. Half-lives in the range 1040-1050 s are obtained for Z > 62. The region of metastability against these new decay modes is extended beyon...

marine microbial natural products

Marine natural products.

Covering: 2016. Previous review: Nat. Prod. Rep., 2017, 34, 235-294This review covers the literature published in 2016 for marine natural products (MNPs), with 757 citations (643 for the period January to December 2016) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangr...

Bioactive marine natural products

Bioactive marine natural products can be defined as biologically active products, both secondary metabolites as well as enzymes, lipids and heteropolysaccharides derived from marine sources. Marine natural products have been found to be an important source of drugs and drug leads. These natural products are secondary metabolites and enhance survival fitness and may serve as chemical weapons use...

Marine natural products.

This review covers the marine natural products literature for the year 2000 and is organized phylogenetically, with sections on marine microorganisms and phytoplankton, green algae, brown algae, red algae, sponges, coelenterates, bryozoans, molluscs, tunicates. echinoderms and miscellaneous marine organisms. There is an emphasis on new structures, stressing their biological activities, source o...