The seasonal variations in algal compositions quantitatively and qualitatively have been studied for two stations Alwnd River, represented before after passing Khanqeen city during eight months starting December 2000. A total of 123 phytoplankton taxa were identified, dominated by diatoms (63 species) followed greens (34 species), blue-greens (15 11 species other groups. cell number was ranged ...

The objective of the current study was determined chemical composition (including protein, lipid, ash and moisture) and content of minerals (Zn, Mn, Fe, Cu, Cr, Ca, Na, Mg, Mo, P, Se, K, I and F) in five fish species from the South Caspian Sea. The chemical analysis revealed that the protein content of common kilka, Caspian kutum, common carp, pike perch and golden grey mullet was 18.35%, 21.39...

Raru is a lesser-known plant species originating from North Sumatra, Indonesia. Information on the characteristics still limited, especially its chemical component. Therefore, this study aims to examine composition information of Cotylelobium lanceolatum, melanoxylon, and Vatica pauciflora woods based their axial log positions (bottom, middle, top). The wood analysis was performed in terms Indo...

A comparative analysis of the lipid compositions and fatty acids in the cytoplasmic membranes of Streptomyces hygroscopicus and its stable cell wall-less L form has been carried out to detect the differences which may be involved in the altered properties of the L-form membranes. Because only quantitative differences could be found (8), we analyzed the lipid components at the molecular level. E...

In the current study, the mosquito larvicidal activity of leaf essential oils and their constituents from two eucalyptus species (Eucalyptus camaldulensis and Eucalyptus urophylla) against two mosquito species, Aedes aegypti and Aedes albopictus, was investigated. In addition, the chemical compositions of the leaf essential oils were analyzed using gas chromatography-mass spectrometry. Results ...

Sensitivities of species compositions of the broadleaf–conifer mixed forest in eastern Eurasian continent to climate change were evaluated with three forest gap models, namely KOPIDE, NEWCOP, and ForClim. Testing sites are located on Changbai Mountain, the middle of the distribution range for the mixed forest. Six climate change scenarios characterizing increase in temperature and increase/decr...

All chemistry dimension-reduction methodologies, such as quasi-steady-state approximation (QSSA), rate-controlled constrained equilibrium (RCCE), and intrinsic low-dimensional manifolds (ILDM), either implicitly or explicitly, provide a means of species reconstruction. Given a reduced description of the chemical composition (e.g., in terms of some ‘‘major’’ species), species reconstruction is a...

Five Bacillus strains isolated from Death Valley soil were shown to belong to a previously unidentified species, for which we propose the name Bacillus vallismortis. The type strain is strain DVI-F-3 (= NRRL B-14890). On the basis of previously published restriction digestion data, B. vallismortis is most closely related to Bacillus subtilis. At this time B. vallismortis can be distinguished fr...