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Keys to Good Oral Hygiene-Running Time 4:36
A video created for elementary students to educate them on oral hygiene. Brushing Means Brushing and Watch What You're Eating are main topics discussed. Running time is 4:36.
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1.1 A contentious issue

This course discusses a contentious issue in economics: why particular groups, such as women or minority ethnic groups, are disadvantaged in the labour market. It compares different theoretical and empirical explanations for why such systematic labour market disadvantage is experienced by some groups in society.

Click to view 'Th
Author(s): The Open University

2.6 The portrayal of traditional symbols of power

Napoleon on his Imperial Throne is crammed with traditional symbols of power. The sceptre surmounted by a statuette, the other sceptre (the ‘hand of justice’) and the sword all had associations with Charlemagne. In the run-up to the coronation, the regime had adopted as official propaganda the flattering notion of Napoleon as a modern Charlemagne (which was already current, as we have seen from David's portrait). Much effort was expended on legitimating his imperial authority by li
Author(s): The Open University

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1 Physics and the physical world

Studying physics will change you as a person. At least it should. In studying physics you will encounter some of the deepest and most far-reaching concepts that have ever entered human consciousness. Knowledge gathered over many centuries, that has been subjected to continuous scientific scrutiny, will be presented, along with its applications. Fact will follow fact, useful theory will succeed useful theory. Amidst this rich mix of information, newcomers to physics might not always appreciate
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Information R/evolution

Video link (see supported sites below). Please use the original link, not the shortcut, e.g. www.youtube.com/watch?v=abcde

Author(s): harvey

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1.3.6 Diagrams for diagnosis

As the detail of the connectivity revealed through a diagram increases, many diagrams can be used for diagnosis by comparing a diagram of what should be happening with what is happening. This approach has been developed in detail by Bignell and Fortune (1984) to analyse systems failures. They argue that all satisfactory systems have functioning decision-making, operational and performance monitoring systems and that many failures can be explained by a failure in one of these aspects, even whe
Author(s): The Open University

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Babbage: Game of drones
Robotic insects could help pollinate plants if bee numbers continue to decline. Wikipedia founder Jimmy Wales on the pitfalls of crowdsourcing knowledge in an era of disinformation. And a protein's structure is key its function but hard to decipher; we explore how citizen science is solving the problem
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2.4.2 Magnesium (Mg)

Magnesium is also present in bone in the body and in the soft tissues, although in much lower quantities than calcium. It is important in the activity of more than 300 enzyme systems, in particular those using ATP. It is involved in the synthesis of proteins and in many other reactions in the body. In plants, magnesium is part of the chlorophyll molecule, so it is present in green vegetables and is found widely elsewhere in the diet, so intake is normally adequate. In some areas, there are lo
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4.1 Family and meanings?

We have considered the difficulties of pinning down family definitions and meanings. We now ask whether it is indeed important to explore and unravel these complexities. Do the varieties of family meanings – or the meaning of ‘family’ itself – matter, or do they just provide a minor intellectual diversion? You may like to pause here for a moment to consider how you would answer this question for yourself. Do you think they matter, and if so, in what ways?

We consider this questi
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Pre-Writing Skills
Writers are more effective when they first develop a writing plan, such
as organizing their thoughts into main ideas and supporting details.

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Conditie en uithoudingsvermogen
icon-27852_640.png

Dit leermiddel omvat een lesplan waarmee de conditie en uithouding van de leerlingen op de proef wordt gesteld aan de hand van loop- en tikspelen.  


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Explanation of Bernoulli's Theorem Experiment
A teacher explains Bernoulli's theorem to kids using a ping pong ball and plastic bottle experiement in this video. Run time 01:20.
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6.5 RSS

RSS ('Really Simple Syndication' or 'Rich Site Summary') newsfeeds supply headlines, links, and article summaries from various websites. By using RSS 'feedreader' software you can gather together a range of feeds and read them in one place: they come to you, rather than you having to go out and look for breaking news. The range of RSS feeds on offer is growing daily. There is probably a feed to cover all aspects of your life where you might need the latest information, and you may find that m
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Unit 9- Notes Dilations and Tesselations
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4.2 Ionic and covalent bonding

We begin by applying simple bonding theories to molecular chlorine gas (Cl2) and non-molecular sodium chloride (NaCl), whose structures were discussed in Section 1. Figure 28 shows the result.

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7.2 Summary

Pitch and loudness are subjective properties of sound. Pitch is closely correlated with frequency, and loudness is closely correlated with amplitude. However, under certain circumstances, slight changes of pitch can be created by changes of amplitude, and changes of loudness can be created by changes of frequency. The ear's uneven response is part of the explanation for these latter phenomena. In the pitch standard known as concert pitch, the note A4 (the A above middle C) is set t
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OU Human Physiology: Hemostasis
Heather Ketchum, Eric Bright
By the end of this section, you will be able to: List and provide a generalized overview for the three steps in hemostasis Compare hemophilia to thrombosis
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Today We Drop Bombs, Tomorrow We Build Bridges: how foreign aid became a casualty of war [Audio]
Speaker(s): Peter Gill | In his latest book Peter Gill reveals how the ‘war on terror’ has ravaged the independence and neutrality of humanitarian aid, with serious consequences for relief operations. Focusing on Turkey, Afghanistan, Somalia and Pakistan he explains how western counter-terror laws are restricting humanitarian relief operations and costing lives. Peter Gill is a current affairs reporter working in Asia, the Middle East and Africa. Michiel Hofman is the Senior Humanitarian Spe
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IS momentum halted or reversed in Iraq - Kerry
Subscribe: http://smarturl.it/reuterssubscribe U.S. Secretary of State Kerry said Thursday that Islamic State's momentum in Iraq had been halted or reversed. Rough Cut (no reporter narration). Subscribe: http://smarturl.it/reuterssubscribe More 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, financial, nation
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Alporas' closed cell aluminium foam
Additions are made to molten aluminium or aluminium alloy to modify the melt viscosity and make it suitable for foaming. 1 to 3 wt% titanium hydride is then added to the melt, and this foams the melt by releasing hydrogen. The foamed melt solidifies to yield a closed cellular structure with an average cell size of 4.5 mm
Author(s): DoITPoMS, University of Cambridge,Dr V Gergely, De

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