Our cultural heritage is made with almost all type of materials produced by the nature and used by men to realize several types of artefacts from very simple mono-components to complex structures integrating inorganic and organic matters. These cultural heritage objects, even if made with the more “resistant” stones and metals, are influenced by the environmental parameters, which can modify th...

This paper aims to study the geochemical characteristics of shale of Disang group of Eocene age. Geochemical study and the data reported indicate that Shales are deposited under the marine condition. Tectonic setting was active continental margin to passive continental margin and sediments were derived from volcanic and/or granitic source area. Study reveals that Source-rating of studied shale ...

Background & Aims of the Study: Natural organic matters (NOMs) are a mixture of chemically complex polyelectrolytes produced mainly from the decomposition of plant and animal residues that are present in all surface and groundwater resources. This paper evaluates the aqueous NOMs adsorption efficiency on walnut shell modified with Zinc Oxide (ZnO). Materials & Methods: This stud...

and it loses oxygen rapidly in oxidizing organic matters. Moreover, it is costly to use. But it has got an important advantage and that is, it is a stable compound. Potassium permanganate is generally used by adding the chemical to the water in such an amount which will produce some pink colour. But the practical details of its use are different in different places in India. For example, in the...

the effect of compost and humic acid in mobility and concentration of cadmium and chromium in contaminated soil were investigated. experiment was carried out with three levels of soil cadmium and chromium and two organic matters (compost and humic acid). the study was performed in a randomized complete block design with 3 replicates. results indicated that application of organic substances enha...

In this paper we show that organic recommendations are preferred over commercial recommendations even when they point to the same freely downloadable research papers. Simply the fact that users perceive recommendations as commercial decreased their willingness to accept them. It is further shown that the exact labeling of recommendations matters. For instance, recommendations labeled as ‘advert...