Nuclear waste: Dump it here, please

Chapter 11: Mine Waste Dump

The Overburden of waste and uneconomic mineralized rock is required to be removed to mine the useful mineral resource in a surface mining operation. In this process a dump is formed by casting the waste material and dumping it in nearby area. The dump so formed is known as mine waste dump. Waste dump may be classified as internal and external dump. External dump is created outside the pit where...

Don't dump the didactic lecture; fix it.

Numerous articles have been published on the merits of active learning, and collectively they present a body of compelling evidence that these methods do enhance learning. In presenting arguments for active learning, it is often suggested that the traditional didactic lecture is more passive in nature and less effective as a teaching tool. However, a well organized lecture remains one of the mo...

It Can't Happen Here?

Recently, it was announced that the Nobel Prize for chemistry was awarded to three West German scientists, Drs. Harmut Michel, Johann Deisenhofer, and Robert Huber, for their work on the x-ray crystallographic analysis of photosynthetic reaction centers from bacteria. This deserved award marks the third time in the past 2 decades that Nobel committees have recognized important plantrelated rese...

Opening the lungs: do it slowly, please.

Nuclear waste disposal.

-Experiments are described in which dose-response data have been obtained for EMT6 mouse tumour cells growing in vivo and exposed to various cytotoxic agents. A comparison has been made of the response of solid tumours in the flank and of rapidly growing lung nodules. The results are discussed with regard to their cell kinetic implications and compared with our results for the chemosensitivity ...