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The week ahead: Who is the real Xi?
Our US editor gives us his forecast for Super Tuesday, China's Xi Jinping gets ready for sweeping leadership changes and Indonesia embarks on a new era of economic development
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Statistics: Variance of a Population - Khan Academy
Mr. Khan continues his discussion about statisitics. This is the video after Sample vs. Population Mean. In this video, he discusses the variance of a population. (12:22)
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1.2 Real numbers

The rational and irrational numbers together make up the real numbers. The set of real numbers is denoted by . Like rationals, irrational numbers can be represented by decimals, but unlike the decimals for rational numbers, those for irrationals are neither finite nor recurring. All such infinite non-recurr
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5 Conclusion

Domesticated organisms evolve in artificial environments under artificial selection, and opportunistic or enforced hybridisation often occurs between species that would not normally interbreed. Natural selection cannot be eliminated and continues to operate. At least two different forms of dwarfism are common in domesticated livestock and humans, but only the rarer midget type of dwarfism occurs in wild lineages. Domesticated mammals and birds have distinctive patterns of skin pigmentation th
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References

Hartley, T.C. (1998) The Foundations of European Community Law, Oxford, Oxford University Press, pp. 11–13.
Tempest, M. (2004) ‘EU leaders sign constitution’, Guardian, 29 October.
Wright, G. and Jeffrey, S. (2004) ‘Q&A: the European constitution’, Guardian, 26 March.

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Hong Kong police dismantle protest site
Hong Kong police have dismantled the city's main pro-democracy protest site after hauling away protesters, ending more than two months of street demonstrations. Rough Cut (no reporter narration). Subscribe: http://smarturl.it/reuterssubscribe More updates and breaking news: http://smarturl.it/BreakingNews Reuters tells the world's stories like no one else. As the largest international multimedia news provider, Reuters provides coverage around the globe and across topics including business, fin
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Competition and Entrepreneurship

Written the year of Mises's death, this is the book that brought new prominence to the Austrian theory of the entrepreneur. Kirzner views him as the discoverer of opportunities in the competitive process, and contrasts this view with the general equilibrium view-which defines away the entrepreneur-and the Schumpeterian view that discovery is always disequilibrating. For its lucidity and focus, this remains an Austrian classic.

 

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Author(s): Israel M. Kirzner

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Setting up Your First Flash File (1 of 10)
Over the course of this series, instructor Paul Trani will show you how to build an Adobe Flash professional CS5 project from the ground up. In this episode, you’ll learn how to set up your first Flash file--and your workspace--for maximum efficiency.
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Building Simple Machines: A Plant Quencher
How difficult can it be to water a plant? Pretty difficult when your objective is to build the most complicated machine possible to complete this simple task. In this video segment from ZOOM, Jillian demonstrates the use of ramps, wheels, pulleys, and other simple machines to construct her "plant quencher." Run time 01:16.
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The Real Mary Magdelene ( 3 of 5 )
This History Channel documentary is sympathetic to the life of Mary Magdalene. Use this documentary to learn -- information contained in the documentary does not have to interfere with one's faith. It is NOT meant to be inflammatory but informative. (WARNING; Educators/Parents: Very brief artist nudity 2 minutes in.)
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5.5 Bills and the Scottish Parliament

Bills in the Scottish Parliament are very similar, in terms of layout, structure and the conventions of legislative drafting, to Bills of the UK Parliament. This is primarily because the Acts of the Scottish Parliament (ASPs) to which they are intended to give rise form part of the UK ‘statute book’ alongside existing statute law.

The progress of a Bill through the Scottish Parliament will depend on a number of factors, as not all Bills follow the same process. The difference betwee
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Keep on learning

Study another free course

There are more than 800 courses on OpenLearn for you to c
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The relativistic Universe
Thanks to cutting edge technology, scientists can peer deeper into space than ever before. The audio tracks in this album feature Dr Robert Lambourne and Dr Stephen Serjeant of The Open University's Department of Physics and Astronomy. They introduce the origin of relativistic cosmology and share the latest ideas about the structure and evolution of the universe. Einstein’s general theory of relativity predicts the existence of black holes and gravitational waves, and the Cosmic Microwave Back
Author(s): The iTunes U team

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Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2

Money talks: Trumponomics
Donald Trump's presidential campaign is astounding political analysts and flummoxing economists; and we also look at whether high denomination bank notes are useful only to criminals Correction: We attribute an analysis of Donald Trump's economic proposals at 2:40 minutes to the Tax Policy Centre, when in fact it is from the Committee for a Responsible Federal Budget. We regret the error.
Author(s): The Economist

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4.5 Some general results

We next establish some general results about Euler characteristics. We start with a theorem that tells us what happens to the Euler characteristic of a surface when we remove an open disc.

Theorem 10: Disc Removal Theorem

The Euler characteristic of a surface with an open disc
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Acknowledgements

Except for third party materials and otherwise stated (see terms and conditions), this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Grateful acknowledgement is made to the following sources for permission to reproduce materia
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3.1 The impact of information technology

Having discussed the radical and pervasive effect that inventions in previous eras have had on economy-wide productivity, and how they have even defined entire periods, we shall now ask how the rise of information technology compares to these previous revolutions. During the early growth phase of PC use, a leader article in Fortune magazine did not hesitate to compare the rise of the PC to previous technological revolutions.

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10.2 The relationship between loudness and intensity

The loudness of an auditory stimulus is a psychological, not physical attribute of the stimulus. The physical attribute of sound that is most closely correlated with loudness is intensity. So loudness is the listener's subjective description of the intensity of the stimulus. As you know, we are not equally sensitive to sounds of all frequencies so perceived loudness of a tone in fact depends on frequency as well as intensity. Two sounds can have the same physical sound pressure levels but if
Author(s): The Open University

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6.2 The supremacy of EU law

Whenever there is a conflict between the provisions of EU law and the provisions of the domestic (national) law of a member state, then EU law will prevail. This is a principle which was developed by the ECJ as the relationship between domestic and EU law is not clarified by treaty provisions. This is an important principle, as it ensures the proper functioning of the EU. If an EU member state had the power to annul EU law by adopting new domestic (national) law which was in conflict with the
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