The Boundary Element Method has been applied to calculate stress distribution and stability of underground mines for disposal of chemical waste. A case similar to the Stripa mine in Sweden has been considered. The rock mass was granite, with major fracture zones represented by three families of planes mutually orthogonal and 100 meters distant from each other. The pre and post processor GiD [3]...

A human health risk assessment of artisanal miners exposed to toxic metals in water bodies and sediments in the PresteaHuni Valley District of Ghana was carried out in this study, in line with US EPA risk assessment guidelines. A total of 70 water and 30 sediment samples were collected from surface water bodies in areas impacted by the operations of artisanal small-scale gold mines in the study...

The problem of plastic anti-personal mine detection is well known. These devices are typically 75mm in diameter and between 25mm to 50mm in thickness. Some types contain no metal, but their explosive (RDX, TNT) can be considered as a dielectric material with a dielectric constant between 3.5 and 4.0. This electromagnetic property enables a radar to identify mines. It is true that the radars ope...

systems indicate that the type of halogen, fluorine, bro mine, iodine, or chlorine, substituted at the 5-position of uracil deoxyriboside greatly influences the activity and the type of inhibition of cell proliferation. 5-Fluorodeoxy uridine (FUdR) inhibits deoxyribonucleic acid (DNA) synthesis by blocking the methylation of deoxyuridylic acid to form thymidylic acid (10, 19, 20), whereas bromo...

Mesothelioma: Global Incidence and Relationship with Asbestos 1). The authors conclude that for very large parts of the world, data on mesothelioma incidence/mortality are not available and this constitutes a serious obstacle to the progress of knowledge of mesothelioma. No data was available from South Africa or Sub-Saharan Africa. The African continent was represented with data from Morocco a...

A new type of cosmic-ray experiment is under construction in the Pyhäsalmi mine in the underground laboratory of the University of Oulu, Finland. It aims to study the composition of cosmic rays at and above the knee region. The experiment, called EMMA, will cover approximately 150 m of detector area. The array is capable of measuring the multiplicity and the lateral distribution of underground ...

The hypothesis is considered that: Once an AI system with roughly human-level general intelligence is created, an “intelligence explosion” involving the relatively rapid creation of increasingly more generally intelligent AI systems will very likely ensue, resulting in the rapid emergence of dramatically superhuman intelligences. Various arguments against this hypothesis are considered and foun...