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...resource which is rapidly becoming exhausted, is unsustainable, costly, and where the empty bottles will stay buried for millennia or increasingly, they will be sent for incineration, leading to more pollution and more CO2. NARRATOR 2 Even if you're conscientious and recyclable your bottle, only about one in four water bottles actually end up being recycled, and quite...

...human health....Metals in medicine: Introduction - This free course, Metals in medicine, is comprised of two parts, which illustrate the key role metals play in medicine. The main focus of sections 1 – 3 is the role metals play in medical imaging, whereas sections 4 and 5 show how metal containing compounds play a crucial role in the treatment of many diseases including...

...human habitation on the Moon. [Figure 1] Figure 1 a view unobtainable from the Earth, this is a 500-km-wide area centred on the lunar south pole assembled from Clementine images[.] Much of the shadow here is permanent, and corresponds to areas where strong signs of ice have been detected[.] The lunar near side is towards the top, and the far side towards the bottom...The...

...human mitogen-activated protein (MAP) kinase growth signalling pathway. A mitogen is an extracellular molecule that induces mitosis in cells. In this course, we shall guide you through the signalling network, firstly by introducing you to the kinds of molecules involved in signal transduction and the general principles employed by cells. Then we shall go into greater...