1.2.4 Surgical methods of contraception

Surgical methods are by and large the most drastic and irreversible ones, ranging from castration to relatively untraumatic tube-tying. Because of the psychological and physiological side-effects, surgical removal of the testes or ovaries is not generally carried out for contraceptive reasons alone, although these operations may be carried out for other reasons, such as the presence of malignant tumours. Any kind of surgical sterilization can be physiologically traumatic for a woman, as it in
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3.3 Optical amplifiers

Figure 22 shows in outline one possible structure for an Erbium-doped fibre amplifier (EDFA).

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Boscombe Pier entrance DP162125

*

Neck Building, Boscombe Pier, Undercliff Drive, Bournemouth Dorset. General view of pier entrance and canopy.
© Historic England


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Introduction

This unit examines how self-assembled structures based on lipids and proteins provide a framework for cellular processes.

This unit is an adapted extract from the Open University course Engineering small worlds: micro and nano technologies (T356).


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2 Altering the environment

Later in this course we will be considering a number of ways in which humans alter their environment.

Question 3

In what ways do you think we are altering the environment?


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Email Basics: What is CC, BCC, POP3, IMAP, SMTP, MIME, ASCII
This is an overview of many aspects of sending email using a client such as Outlook. (07:28)
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Professor Tania Lewis plenary address FILLM conference, India
‘Magical Modernities’, Invited Plenary Address for the Triennial conference of FILLM (the International Federation for Modern Languages and Literatures), University of Delhi,15-17 March 2017. Magical Modernities? Post-secularism and spiritualism on Indian television Channel surfing on morning television in India—a truly bewildering experience given there are now 800 plus channels and rising—involves navigating a mix of news and sports channels, children’s shows, cookery shows, soaps,
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3.5 Reactions and reflections

Activity 8

0 hours 15 minutes

Read the Case Study ‘Sarah's story: Sarah and John’

Make notes on the reactions presented in the Case Study.

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4.2 Capitalism – naturally

Business can learn to integrate ecological thinking into the core of its thinking and become the hub of a sustainable society. This is the claim of the business learns position. As environmentalists have spent over 30 years portraying business as the arch-villain of the piece, this is a grand claim. One of the people who have stated it most clearly is Ray Anderson, head of the US carpet giant Interface (Author(s): The Open University

3.3.1 Try some yourself

Activity 22

A friend has been quoted a price of £25.50 per square yard for tarmac surfacing of his yard. The yard measures 6 yards by 10 feet. Here is his calculation of the total cost. What is wrong with it?

cost =
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Introduction

Free trade or fair trade? This unit will help you to analyse the relationship that exists between developed and developing countries under the World Trade Organization regime of Development Round negotiations. The current world trade regime has a very mixed record in promoting growth and reducing poverty.

This material is from our archive and is an adapted extract from Making the international: Viewpoints, concepts, and models in international politics and economics (DU321) which
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Designing a graphic
Designing a graphic - UNSPECIFIED Keywords:data visualisation , data design
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Learning outcomes

After studying this course, you should be able to:

  • list the six key nutrient groups and explain their role in a healthy diet

  • understand and calculate body mass index (BMI), and use such calculations to predict desirable weight ranges for individuals

  • explain the importance of a balanced diet in terms of energy intake

  • explain how genetic and environmental variables may interact to produce variability in human body weight and adiposity b
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Ina Budde, German Designer - Fast Fashion
Taking a critical look behind the scenes of the fashion industry with an exhibition that undresses the social, economic and environmental impacts of cheap fashion. https://www.rmit.edu.au/events/all-events/exhibitions/2017/july/fast-fashion--the-dark-side-of-fashion
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7.1 Climate models

To understand climate change it is necessary to construct climate models, to explore and predict interactions between different factors. Models are tested for accuracy against known sets of data, before being run forward to predict future changes.


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2.5.1 Quantum mechanics and chance

The real quantum revolution dates from the formulation of quantum mechanics by Werner Heisenberg (1901-1976) and others in 1925, and its physical interpretation by Max Born (1882-1970) in 1926. However, before attempting even the most basic sketch of quantum mechanics let's take a small diversion into the realm of philosophy.

The basic working philosophy of most scientists, including those who say they have no philosophy, is a kind of realism. (Philosophers recognise many
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Lesson 06 - One Minute Luxembourgish
In lesson 06 of One Minute Luxembourgish you will learn to introduce yourself. 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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Présentation de l'expédition "La Planète Revisitée" en Papouasie (Vidéo)

En 2012/2013, le programme d'expéditions du Muséum national d'Histoire naturelle et Pro-Natura international "La Planète Revisitée" ont organiseé une grande expédition en Papouasie-Nouvelle-Guinée.


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2 One gene–one protein

A gene is a short section of a long DNA double helix molecule, which comprises a linear sequence of base pairs.

SAQ 1

What is the basic (primary) structure of a protein?


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5.8 Additional treatment

As a result of strict standards set by the EU Directive on the Quality of Drinking Water, it is now often necessary for drinking water to have further treatment to remove components such as nitrates and trace of organics.


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