Artisanal small scale gold mining (ASGM) operations are largely unregulated, informal and transient. Rudimentary mining and processing techniques used in ASGM often result in degraded environmental, safety, health and social conditions. ASGM requires permanent sources of water, placing most operations close to natural water bodies. Until recently, the impact on these environments has been large...

Rushes footage are considered as cheap gold mine with the potential for reuse in broadcasting and filmmaking industries. However, it is difficult to mine the “gold” from the rushes since usually only minimum metadata is available. This paper focuses on the structuring and indexing of the rushes to facilitate mining and retrieval of “gold”. We present a new approach for rushes structuring and in...

Abstract Artisanal and small-scale gold mining (ASGM) utilizes mercury (Hg) for the extraction of (Au) is responsible largest anthropogenic source emissions releases Hg to environment. Previous estimates use in ASGM have varied widely. In this effort, losses were derived from difference between total Au production reported by conventional mining. On basis result, average ratio lost produced was...

At the Bonfim mine, cyanide processing used to extract gold from abandoned tailings represents an important environmental concern. In order to evaluate cyanide concentrations, twenty samples of sediments of the main streams crossing the mine site, and ten samples of the five mainly tailings were analyzed for total cyanide. Cyanide was found in two samples of tailings (0.83 and 1.44mg/Kg of tota...

Since prehistoric era, plant-derived drugs were much preferred due to their less side effects than drugs of synthetic origin. Bioassay-guided selection of active fraction of a plant extract and further isolation and characterization of the pure bioactive compounds are in practice in both academic and industrial research. Zingiberaceae, a medicinally important, ornamental, monocotyledonous famil...

The challenge to maximize resource efficiency requires the optimal use of all products leaving a mine—not only ore but also waste products—and calls for contributions from and cooperation with every discipline involved as efficiently possible. These interdisciplinary transdisciplinary interactions between practitioners scientists are an act learning take time. They should be initiated at start ...