The commodity studied here, copper, is a metal heavily traded worldwide with a direct effect not only on the economic environment in Chile, the world's number one producer, where interest and currency exchange rates are affected by the demand for copper (Pedersen, 2019), but also on the Pe...
The copper prices in the USA reached 15419 USD/MT in December, due to elevating interest rates and cautious consumer spending.
The rapid surge in antibiotic resistance to pathogens has emerged as a grave threat to public health, globally. This multiple drug resistance (MDR) is directly linked to the high rates of morbidity and mortality worldwide due to untreated microbial infections. Therefore, it is inevitable to ...
It is unable to perform statistical analysis to evaluate this difference of Cd and Pb for their low detection rates. Only 2.44% of Pb was detected in grape pulps, but 95.7% of Pb was detected in grape skins. It is not difficult to deduce that there is a significant difference between ...
The contribution rates of road dust and solid waste were higher for Pb than for other heavy metals in peri-urban agricultural soils under the great influence of human activities22. In addition, the main sources of different heavy metals were also different. Atmospheric deposition contributed the ...
[206] A minimum dietary value for healthy growth in rabbits has been reported to be at least 3 ppm in the diet.[207] However, higher concentrations of copper (100 ppm, 200 ppm, or 500 ppm) in the diet of rabbits may favorably influence feed conversion efficiency, growth rates, and ...
In this study, we use the integrated system dynamics model, WORLD6 as the simulation platform. Fully dynamic integrated system dynamics models do include; change in supply, change in demand, change in price, change in production rates, change in population, change in recycling, change in use ...
In addition, the flow of low-quality scrap to South East Asia, India and Pakistan for processing is set to continue, with the final product ultimately exported to China in a form adhering to the new regulations. Copper Price The spectacular copper price rally in recent months has primarily be...
High Sr/Y magmas reflect arc maturity, high magmatic water content, and porphyry Cu ± Mo ± Au potential: examples from the tethyan arcs of central and eastern Iran and western Pakistan. Econ. Geol. 107, 295–332 (2012). Article Google Scholar Francis, R. D. Sulfide globules in mid-...
For each thermal model, we extracted the respective vol- umes of magma that cool below one of the four percolation isotherms in between each time step (Fig. 3d–f; Supplementary Fig. S2). Subsequently, we used these volumetric cooling rates (based on incrementally built plu- tons) ...