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Group work PDF
Group work PDF - Profile Picture Dr Julie Price
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Today in History for March 19th
Highlights of Today in History: US launches 2003 attack on Baghdad; Televangelist Jim Bakker quits ministry due to scandal; Nevada legalizes casino gambling; Bob Dylan's debut album is released. (01:36)

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The week ahead: Modi the paper tiger
Stanley Pignal says India's Prime Minister Narendra Modi a better administrator than he is a reformer. Also, How is Orlando, Florida coping one year on from the Pulse nightclub attack? And teenagers join the Italian mob. Josie Delap hosts.
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Babbage: Hollow-grams?

Holograms have fallen short of the vivid, floating projections seen in science fiction. However, one scientist is copying an iridescent butterfly to create better effects. Also, how blow flies are helping to solve murder mysteries. And why genetic testing is threatening the insurance industry. Kenneth Cukier hosts.


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Collusion elusion: the Mueller report

Robert Mueller, the special counsel, has at last delivered his report on President Donald Trump’s campaign. Will it have disappointed or empowered the Democrats in Congress who are still bent on investigating the president? And, four years ago the hard-left Syriza party stormed to power in Greece. But it has broken many of its campaign promises. As an early election looms, we take a look at Syriza’s slow slide.


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What's Inside an Elephant Trunk?
Elephant trunks are the most impressive noses in the animal kingdom. Made almost entirely of muscle, elephant trunks can lift hundreds of pounds, suck up gallons of water, and sniff out landmines. But, what's on the inside of an elephant trunk? (03:00)

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The Slaves That Built the White House
(08:24)
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Reinventing Museums for the Digital Generation
Penn Museum Director Julian Siggers is leading a digital transformation of the institution to make it relevant to younger generations.
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Can Restructuring Sears Fix a Catalog of Problems?
The latest revival plan for Sears could benefit the hedge fund that controls it, instead of boosting the retailer, say experts.
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Why Fake News Campaigns Are So Effective
Social media have been "weaponized" with fake news to maximize social discord, writes Wharton professor Eric K. Clemons in this opinion piece. Why does it work so well?
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Can Dolce & Gabbana Recover from Its Mistakes in China?
Italian fashion house Dolce & Gabbana is trying to clean up a public relations mess in China that highlights the importance of cultural sensitivity in a global marketplace.
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Keep on learning

Study another free course

There are more than 800 courses on OpenLearn for you to choose from o
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Base pairing

Nucleic acid folding patterns are dominated by base pairing, which results from the formation of hydrogen bonds between pairs of nucleotides. In nucleic acids, as in proteins, the highly directional nature of this hydrogen bonding is the key to secondary structure.

SAQ 5

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1.2 Nucleic acids: genetic, functional and structural roles in the cell

The first role that one immediately thinks about for nucleic acids is that of an inherited genetic material, principally in the form of DNA. In some cases, the inherited genetic material is RNA instead of DNA. For example, almost 60% of all characterised viruses have RNA genomes and these are more common in plant viruses than in animal viruses. There is considerable variation in the amount of genetic material present within organisms (Author(s): The Open University

7.5 Control measures

7.5.1 Control measures to avoid exposure

There are four main methods of exposure to chemicals:

  1. Inhalation – This is the main method of exposure to volatile solvents and gases.

  2. Skin absorption – Certain chemicals possess the ability to penetrate through pores of skin (for example, mercury compounds and hydrofluor
    Author(s): The Open University

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References

Huse, M. and Kuriyan, J. (2002) The conformational plasticity of protein kinases, Cell, 109, pp. 275–282.
Lipscomb, W. N., Reeke, G. N. Jr, Hartsuck, J. A., Quiocho, F. A. and Bethge, P. H. (1970) The structure of carboxypeptidase A. 8. Atomic interpretation at 0.2 nm resolution, a new study of the complex of glycyl-L-tyrosine with CPA, and mechanistic deduction
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Keep on learning

Study another free course

There are more than 800 courses on OpenLearn for you to
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Conclusion

This free course provided an introduction to studying Science. It took you through a series of exercises designed to develop your approach to study and learning at a distance and helped to improve your confidence as an independent learner.


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6.1 Basic isotropy

As we have said, the photons in the 3 K background have been practically free from interaction with anything since about 4 × 105 years after the instant of the big bang. The present angular distribution of the microwave radiation – the way in which it is spread across the sky – is therefore almost the same as it was then. The spectrum we find today depends on the temperatures at that time – for the intensity of the radiation in a particular region of the early Unive
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1.2.6 Defining global markets

Global markets for manufactured goods, as opposed to, say, primary commodities such as oil and timber, arose largely in the second half of the twentieth century as trade between countries intensified. The lowering of transport costs and the relative fall in trade barriers enabled firms in one country to compete with a domestic rival in another. The supply of manufactured goods across the globe as a result of worldwide demand, principally from the affluent economies, thus heightened competitio
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