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2.3.4 Klein bottle

There are two other surfaces that can be obtained by identifying both pairs of opposite edges of a rectangle. In one of these, shown in Figure 31, we first identify the edges AB and A'B', labelled a, in the direction shown by the arrowheads. This gives us a cylinder, as before. We then try to ident
Author(s): The Open University

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Introduction

This is the fifth and final unit in the MSXR209 series on mathematical modelling. In this unit we revisit the model developed in the first unit of this series on pollution in the Great Lakes of North America. Here we evaluate and revise the original model by comparing its predictions against data from the lakes before finally reflecting on the techniques used.

This unit, the fifth in a series of five, builds on ideas developed and introduced in Modelling pollution in the Great Lakes
Author(s): The Open University

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Evolution through natural selection
In this unit, we describe the theory of evolution by natural selection as proposed by Charles Darwin in his book, first published in 1859, On The Origin of Species by Means of Natural Selection, or The Preservation of Favoured Races in the Struggle for Life. We will look at natural selection as Darwin did, taking inheritance for granted, but ignoring the mechanisms underlying it.Author(s): Creator not set

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Nature matters: Systems thinking and experts
This unit explores conceptual tools for assisting our thinking and deliberation on what matters. The notion of ‘framing’ nature is introduced and three readings provide an understanding of systems thinking for explicitly framing issues of environmental responsibility. First published on Wed, 27 Jul 2011 as Author(s): Creator not set

Introduction to forensic engineering
Why do products fail and who finds out why? This unit enters the complex world of forensic engineering and examines how scientists analyse product failure. From investigating a ladder accident to determining the reasons behind the failures in medical products, you will understand how the ‘truth’ can be established. Fi
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Dundee, jute and empire
Britain was the first country to industrialise, and it acquired the largest empire ever during this same period. But its sphere of economic influence extended far beyond the boundaries of the formal British Empire. This unit focuses on the economics of empire, using a case study of one town, Dundee in eastern Scotland, to explore this huge topic. First published
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Approaching literature: Reading Great Expectations
This unit considers some of the different ways of reading Great Expectations, based on the type of genre the book belongs to. This is one of the most familiar and fundamental ways of approaching literary texts. The novel broadens the scope of study of a realist novel, in both literary and historical terms. The unit includes extracts from critical writings, which are discussed in detail.Author(s): Creator not set

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The Rapture Family
Teachers are advised to review content:
Bill Wiggins film about a family’s dedication to producing the religious drama “In the Rapture”; accompanies his film of that drama
Drama, Music, Religion, African American Culture / Midwest / 1976
59 minutes

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13.12.2012 – Langsam gesprochene Nachrichten
Trainiere dein Hörverstehen mit den Nachrichten der Deutschen Welle von Donnerstag – als Text und als verständlich gesprochene Audio-Datei. *** Die EU-Finanzminister haben sich nach einer nächtlichen Marathonsitzung auf eine Bankenaufsicht für die Euro-Zone verständigt. Die Europäische Zentralbank (EZB) soll künftig die größten Kreditinstitute in der Euro-Zone überwachen. Beim ersten Anzeichen von Problemen soll sie auch bei kleineren Geldhäusern eingreifen dürfen. Das neue Kont
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Lesson 01 - One Minute Luxembourgish
In lesson 01 of One Minute Luxembourgish you will learn how to say 'hello' and 'goodbye' in Luxembourgish. Remember - even a few phrases of a language can help you make friends and enjoy travel more. Find out more about One Minute Languages at our website - http://www.oneminutelanguages.com. One Minute Luxembourgish is brought to you by the Radio Lingua Network and is ©Copyright 2008.Author(s): No creator set

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Working with young people: Roles and responsibilities
In this unit, we look at the roles that are taken when working with young people. We focus on what those working with young people actually do, starting with some analysis of roles. We show that, in the context of work with young people, the term is more than simply a statement about who does what: it also says something about the kinds of relationships we form with young people and the values we bring to our work. We then move on to discuss roles in relation to the ‘bigger picture’ of organ
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Parents and toddlers: Teaching and learning at home
How do young children learn? This unit looks at the way toddlers interact with their carers in the home environment. You will learn how adults use different methods of teaching to encourage a small child to expand their boundaries and develop new ways of thinking. First published on Wed, 27 Jul 2011 as
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School Governors: Planning for improvement
School governors do not work in isolation. This unit will help you to understand how planning for school improvement must take into account the wider education system including government initiatives and the LEA education development plan. You will learn to use techniques such at SWOT and STEEPE to assist in the process of forming a plan for your school.Author(s): Creator not set

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An introduction to the wider professional role of the teacher in England
This unit is an early study for people wishing to become a secondary teacher using the Open University's highly flexible route for graduates – known as the flexible PGCE. This unit, which considers the general professional standards and skills of a teacher whatever their secondary subject specialism, is studied following a brief two-week placement in school and prior to a much longer series of full-time school experiences.Author(s): Creator not set

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What is iptables
IP Filters that are typically used in hardware routers operate at the IP layer. These filters typically are too coarse to allow for control of applications and systems to keep them safe. The IPTable application operates at a higher level by filtering TCP
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Otis Legacy: Visiting Ceramicist: John Mason '57
The Otis Legacy class at Otis College of Art and Design invites distinguished alumni each semester to come share with the class something of their careers and experiences at Otis. The artists are interviewed for the class by students assisted by class mentor, Jo Lauria. November 12, 2012, the guest artist was ceramicist, John Mason, Otis '57. Born in Madrid Nebraska in 1927, Mason began exhibiting his powerful ceramic work at L.A.'s legendary Ferus Gallery in the late 1960s. He was one of the
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The University of Memphis minute for the week of December 14, 2012.
The University of Memphis minute for the week of December 14, 2012.
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Getting ready for winter
http://supportservices.concordia.ca/iso/ http://www.concordia.ca/now/campus-beat/concordia-community/20121213/preparing-for-winter-1.php http://www-health.concordia.ca/healthinfo/2010-2011/Health_Notes_December_2010.pdf The staff at the International Students Office know that many international students at Concordia University can be caught unprepared for Canada's winters. Watch this presentation to find out how to keep warm and how to stave off the winter blues. Tips include wearing layered cl
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Marquette University in 2012
A year in the life of Marquette University. Photos taken or submitted by Ben Smidt, Aaron Ledesma, Mykl Novak, Nikki Rogan, Eric Bertram, The Naturals, Morgan Rusnak, Chris Kerzich, Brynne Ramella, Jordan Calgaro, Scott D'Urso, Molly Eldridge and Dan Johnson.
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