This study was carried out to determine the toxicity of copper sulphate to African Catfish (Clarias gariepinus). The range–finding test was conducted twice in order to get reliable values that could be used for the definitive test. The toxicant (copper sulphate) was introduced at varying...

This article may be of particular interest in view of the fact that UNCTAD has now for the first time set down a schedule for preparatory negotiations on raw materials. The resolution of UNCTAD IV on the treatment of the integrated action programme for raw materials is now to be realised....

This Working Paper presents a brief but comprehensive graphical overview of copper contained in international trade, from copper concentrates through to finished products. Extensive data checks and a simple consolidation method were performed before visualizing the data on world maps. While data...

The purpose of this paper is to examine the empirical behavior of copper spot prices in London Metal Exchange. Based on the particularities of the copper, various continuous processes are used. We simulate one, two and three factors stochastic processes using Monte Carlo simulation technique in...

This memorandum provides an empirical analysis conducted by the Staff of the Division of Risk, Strategy, and Financial Innovation (“Staff”) related to the potential effects of NYSE Arca, Inc. proposed rule changes to list and trade shares of the JPM XF Physical Copper Trust (“JPM Copper...

By virtue of its intrinsic properties, copper is used extensively in many manufacturing industries, from the production of power cables to consumer electronics. Statistics from the World Bureau of Metal Statistics (2012) reveal that global refined copper consumption reached over 19.5 million...

This paper investigates the impact of the copper access regulation on broadband adoption in each technology (xDSL on copper infrastructure, FTTx on fiber infrastructure and cable modem). We modelize adoption with a logistic function. Using a 15 European countries dataset we find a negative...

Der Glasfaserausbau in Frankreich ist bereits relativ weit fortgeschritten und der Ausbauplan bis 2025 ist bereits zu über 92% fest kontrahiert. Noch besteht eine Nachfragelücke zwischen den bereits ausgebauten und den aktiv in Betrieb genommenen Glasfaseranschlüssen. Es gibt weder eine klar...

This senior law thesis examines the place of copper extraction in the Chilean economy and political system and the role that legal regulation played since 1850 up to the late 1960s. Copper has been the principal product of the economy and main source of foreign exchange and government revenue....