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Lecture 4 [slides]: SQL, Continued
MySQL. SQL. MySQL types. Indexes, constraints. MySQL Functions. JOIN. Race conditions. INSERT ... ON DUPLICATE KEY UPDATE. Transactions (InnoDB). Locks (MyISAM). CSV.
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Virtual Maths, Shapes Space and Measure, Surface of semi cylinder
Interactive simulation demonstrating how to calculate the surface area of a cover for an astro turf pitch including the ends by using a semi (half) cylinder.
Author(s): Leeds Metropolitan University

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5.6 Evaluating strategy and presenting outcomes

Activity: Evaluating your IT strategy and presenting outcomes

For this activity you will need to print out the Skills Sheet, ‘Evaluating your strategy and presenting outcomes’: click Author(s): The Open University

5.1 Overview

The discovery that quantum mechanics permits the tunnelling of particles was of great significance. It has deep implications for our understanding of the physical world and many practical applications, particularly in electronics and the developing field of nanotechnology. This section introduces some of these implications and applications. Applications naturally involve the three dimensions of the real world, and realistic potential energy functions are never perfectly square. Despite these
Author(s): The Open University

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1.4.6 P is for Provenance

The provenance of a piece of information (i.e. who produced it? where did it come from?) may provide another useful clue to its reliability. It represents the 'credentials' of a piece of information that support its status and perceived value. It is therefore very important to be able to identify the author, sponsoring body or source of your information.

Why is this important?

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6.2 End-of-course questions

Question 25

Table 8 shows the atmospheric pressure P in pascals (Pa) at various heights h above the Earth's surface. Plot a graph to give a visual representation of the data in the table. Be careful to l
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Activity 10: Critical reflections on Hofstede

Allow 60 minutes for this activity.

You have spent most of this unit working with Hofstede's ideas. He is one of the pioneers of the study of national culture and its impact on organisations, and his work has been very influential.

My aim so far has been to help you understand Hofstede's cultural dimensions and to become familiar with how they can be used to analyse one of the main environments within which organisations operate. National culture is also one of the factors
Author(s): The Open University

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Financial strategy and private finance initiative
Does a hospital have to be owned and managed by the same sector that provides its services? In the early 1990s, the Private Finance Initiative was the Treasury's brainwave to provide the public sector with better value for money. Designed to fund public infrastructure such as hospitals, roads and accommodation through private money from consortiums, these contentious schemes indicated a radical cultural shift towards outsourcing. The 13 video tracks in this album introduce the complexities invo
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

Arte y cultura popular

Actividad 15

Ya ha analizado algunas de las diferencias que existen entre el arte y la artesanía. A continuación va a leer un texto académico en el que se explora el concepto de artesanía pero esta vez en relación a l
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Art a GoGo Podcast #60 - Art News, Recommended Exhibits, and TV Series Work of Art: The Next Great A

Art news, reviews, and commentary with those nasty side effects.  Art a GoGo...it's "Art over easy!"

Please visit our artagogo.com/blog for full show notes and links to the topics we discuss during the podcast.

You can reach us via email at artagogo (@) gmail.com.


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3.6 A 'non-active' class - the starburst galaxies

We end this section by drawing a distinction between the classes of active galaxy that are described in the previous subsections and the starburst galaxies mentioned earlier. As you have seen, starburst galaxies are essentially ordinary galaxies in which a massive burst of star formation has taken place. Their spectra show emission lines from their many HII regions and infrared emission from dust but, in the main, they do not show unusual activity in their nuclei. In the past they were
Author(s): The Open University

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4 What is a ‘nation’?

Guibernau (1996, p. 47) has defined the nation as: ‘a human group conscious of forming a community, sharing a common culture, attached to a clearly demarcated territory, having a common past and a common project for the future and claiming the right to rule itself’. So awareness, territory, history and culture, language and religion all matter. However, it is rare in the real world to find a case of a nation with a clear-cut and homogenous character in terms of this list of possibilities.
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Original Copyright © 2005 The Open University. Now made available within the Creative Commons framework under the CC Attribution – Non-commercial licence (see http://creativecommons.org/licenses/by

2.2.4 Film cassette and grid

As the X-rays pass through the patient some of them will be scattered and will therefore not follow the expected line through the patient. If these reach the detector they will blur the image. Some of the scattered radiation can be removed by a grid, usually oscillating, placed between the patient and the detector.

Analogue imaging systems use either film alone (rarely) or a combination of a film and fluorescent material (phosphor). The phosphor fluoresces and produces visible light whi
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3.2 Orientability

The idea of orientability is another fundamental concept that we need for the study of surfaces. To illustrate the underlying idea, we consider two familiar surfaces – a cylinder and a Möbius band.

We can distinguish between a cylinder and a Möbius band by noticing that every cylinder has an ‘inside’ and an ‘outside’, as shown in Author(s): The Open University

1.1 How has the human population grown?

For most of human history there have been relatively few people in the world. Figure 2 shows that only over the last 50 years have numbers really shot up, and that, at the turn of the century, the population reached over six billion.

Figure 2Author(s): The Open University

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4.1 Introduction

Working with others online requires some skills that are not always obvious when you first start using email and computer conferencing.

Here are some basic rules of good practice about Computer Mediated Communication (CMC) that we recommend to all students when they begin using conferencing. These are collectively known as 'netiquette'.


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University Without Walls, Elizabeth Nielsen
University Without Walls at UMass Amherst gives you the ability to design your own program of study in a wide range of areas, and to get college credit for your life and work experience. For Elizabeth Nielsen, completing a bachelor's degree with UWW was a way to take the next step toward a rewarding career in non-profit administration. Explore how a UWW degree can help you achieve your life and career goals: http://www.umass.edu/uww///www.umass.edu/uww/
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1.1 An Introduction to General Philosophy
Part 1.1. Outlines the General Philosophy course, the various topics that will be discussed, and also, more importantly, the philosophical method that this course introduces to students.
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4.1 Looking at the evidence

Some analysis of the data shown in Figures 4 (a) and 4 (b) is needed to set it in a wider context. We need to know how many openings we
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4.5 Model the best solution

In moving from the 'possible solutions' to the 'best solution' box, Figure 12, we have to assume that a certain amount of evaluation has been done in the previous loop. The solution is still on paper, and probably not much more than a sketch, but something is badly wrong if the best solution to com
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