The development of the industry has resulted in a proportional increase waste materials. Waste industrial products play major role pollution nature along with seas, lakes, and various water resources around world. Organic dyes, which do not degrade have carcinogenic effects, are important wastes. improvement wastewater is research topic that gained importance recent years. In this study, biosor...

1. introduction seas and oceans comprise over 70 percent of the planet earth always taken into attention in the history. however, the most important official and legal actions to regularize a number of claims made by coastal countries regarding the demand of the territorial and marine control and exclusive ownership date the 20th century. the first conference on marine international law was hel...

Strawson proposed in the early seventies an attractive threefold distinction regarding how context bears on the meaning of ‘what is said’ when a sentence is uttered. The proposed scheme is somewhat crude and, being aware of this aspect, Strawson himself raised various points to make it more adequate. In this paper, we review the scheme of Strawson, note his concerns, and add some of our own. Ho...

In plant cells, ammonium is considered the most convenient nitrogen source for cell metabolism. However, despite being preferred N form microalgae, at higher concentrations, it can be toxic, and cause growth inhibition. Microalgae’s tolerance to depends on species, with various taxa showing different thresholds of tolerability symptoms toxicity. environment, high concentrations represents a dan...

on which water ice has been positively identified. It is unlikely to be pure, although the nature, amount, and We examine various mechanisms of erosion on Titan and their likely effect on Titan’s geomorphology. Specifically we distribution of the contaminants (silicates, organics, and evaluate the solubility of likely crustal ices (water and ammoperhaps ammonia–water ice) are not known, but see...

Here we investigated whether there is evidence of local adaptation in strains of an ancestrally marine dinoflagellate to the lacustrine environment they now inhabit (optimal genotypes) and/or if they have evolved phenotypic plasticity (a range of phenotypes). Eleven strains of Polarella glacialis were isolated and cultured from three different environments: the polar seas, a hyposaline and a hy...

Humans are one. They belong to a single species. They have a long history. Even in prehistoric times there were migrations, near and distant, all over the world. Seas, rivers, lakes, mountains, deserts and forests have not been able to deter human beings moving from one place to another. Come to think of it, migrations of people like the Jarawa (a classic food-gathering and hunting Negrito grou...

Several clues indicate that Titan’s atmosphere has been depleted in methane during some period of its history, possibly as recently as 0.5-1 billion years ago. It could also happen in the future. Under these conditions, the atmosphere becomes only composed of nitrogen with a range of temperature and pressure allowing liquid or solid nitrogen to condense. Here, we explore these exotic climates t...