Keep on learning

Study another free course

There are more than 800 courses on OpenLearn for you to choose from on a range of subjects. 

Find out more
Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

The Paganini Project with Peter Sheppard Skærved
Polymathic and ever-curious British violinist Peter Sheppard Skærved delves into the Library's fascinating Niccolò Paganini collection. Examining posters, playbills, letters, manuscripts and memorabilia collected by Paganini himself, he reveals how the virtuoso created his own mystique as a violinist and musical innovator. From his "Secret Red Book" containing recipes, prescriptions, tour dates, a laundry list and financial notes, to clues about the virtuoso's alleged use of a steel bow, our P
Author(s): No creator set

License information
Related content

Fotografía en movimiento: Filmmaking DSLR
Recopila, sintetiza y detalla los contenidos trabajados en cada una de las sesiones del taller organizado por Espacio-Red de Prácticas y Culturas Digitales (UNIA)
Author(s): Míchelo Toro

License information
Related content

Rights not set

LNS Special Seminar

Recorded 11/29/12


Author(s): No creator set

License information
Related content

Yossi Sheffi - "Logistics Clusters"

12/4/12


Author(s): No creator set

License information
Related content

Future energy demand and supply
When you consider that the global annual consumption of primary energy increased more than ten-fold during the 20th Century, the importance of planning future energy supply becomes clear. Future energy demand and supply is a free course that offers an introduction to how this is being undertaken. First published on Wed, 27 Jul 201
Author(s): Creator not set

License information
Related content

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

Introduction

An essential aspect of maintaining the body is the consumption of food. The range of foods that we eat is known as our diet and the components of food that are digested, absorbed and used in bodily functions are known as nutrients. Nutrients supply the body with both energy and with the components for growth and repair. In this course we will examine the various roles of nutrients within the body and look at the effects of nutrient deficiencies or excesses, both of which can lea
Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

Influenza: A case study
This free course, Influenza: A case study, explores the biology of influenza, covering a range of topics including: the virus, infection, replication, mutation, immune responses, pathology, surveillance, diagnosis and treatment. First published on Fri, 16 Dec 2011 as Author(s): Creator not set

Introduction to histopathology
This free course provides an introduction to histopathology and outlines how the appearance of different tissues changes due to damage, inflammation, infection or degeneration and how microscopy can aid in the diagnosis of disease. First published on Wed, 07 Aug 2013 as Author(s): Creator not set

Acknowledgements

The content acknowledged below is Proprietary (see terms and conditions). This content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 2.0 Licence

Grateful acknowledgement is made to the following sources for permission to reproduce material in this unit:

The content acknowledged
Author(s): The Open University

License information
Related content

Except for third party materials and/or otherwise stated (see terms and conditions) the content in OpenLearn is released for use under the terms of the Creative Commons Attribution-NonCommercial-Share

5.2 The pharmaceutical background

The existence of alpha receptors had been known for many years, and the obvious approach of trying to block these receptors, and hence prevent the noradrenaline from binding, had already been tried by many research groups. A number of compounds with alpha-blocking activity had been identified, including one called prazosin (2) discovered by Pfizer at their US research laboratories in Groton. Substances such as prazosin which block agonist action are called antagonists.


Author(s): The Open University

License information
Related content

Except for third party materials and/or otherwise stated (see terms and conditions) the content in OpenLearn is released for use under the terms of the Creative Commons Attribution-NonCommercial-Share

2.14 Summing up

Activity 13

0 hours 5 minutes

Dr. Peterson concludes the audio sequence with a summary of all the points covered.

Author(s): The Open University

License information
Related content

Except for third party materials and/or otherwise stated (see terms and conditions) the content in OpenLearn is released for use under the terms of the Creative Commons Attribution-NonCommercial-Share

2.11 Consequences of human / chimp pairing

Activity 10

0 hours 10 minutes

This clip refers back to the table of molecular characters, which is shown again here (Figure 9). It explains the consequences of human / chimp pairing in terms of homol
Author(s): The Open University

License information
Related content

Except for third party materials and/or otherwise stated (see terms and conditions) the content in OpenLearn is released for use under the terms of the Creative Commons Attribution-NonCommercial-Share

Introduction

The versatility of mammals is a central theme of the ‘Studying mammals’ series of units, but surely no environment has tested that versatility as much as the rivers and oceans of the world. Mammals are essentially a terrestrial group of animals, but three major groups have independently adopted an aquatic way of life. In moving to the water, aquatic mammals have had to survive, feed and reproduce using a set of biological characteristics that evolved in association with life on land. This
Author(s): The Open University

License information
Related content

Except for third party materials and/or otherwise stated (see terms and conditions) the content in OpenLearn is released for use under the terms of the Creative Commons Attribution-NonCommercial-Share

1.2 Chemical elements

Atoms of the same atomic number behave virtually identically in chemical reactions. They are therefore given the same chemical name and chemical symbol. For example, the atom of atomic number 6, which is shown in Figure 1, is a carbon atom, whose symbol is C. All materials are made of atoms, but there is a special class of substan
Author(s): The Open University

License information
Related content

Except for third party materials and/or otherwise stated (see terms and conditions) the content in OpenLearn is released for use under the terms of the Creative Commons Attribution-NonCommercial-Share

1.3 An overview of animal phyla

We have already met quite a few different animal phyla, and it's useful to get an overview of all the ones commonly found in the fossil record and their mode of life before studying some in more detail. Except for a few soft-bodied phyla with very poor fossil records, it is clear that all the animal phyla had appeared by the Ordovician Period.

Author(s): The Open University

License information
Related content

Except for third party materials and/or otherwise stated (see terms and conditions) the content in OpenLearn is released for use under the terms of the Creative Commons Attribution-NonCommercial-Share

6.1 Introduction

Despite efforts to avoid them, heart disease, heart failure and heart attacks do occur – sometimes with warning symptoms and sometimes without. Cardiologists (doctors specialising in the heart) use a variety of tests to determine the causes of different conditions leading to heart disease. They are then able to guide subsequent treatment. Special tests that are carried out in cardiology departments may include blood pressure measurements, blood tests, electrocardiography, angiography, echoc
Author(s): The Open University

License information
Related content

Except for third party materials and/or otherwise stated (see terms and conditions) the content in OpenLearn is released for use under the terms of the Creative Commons Attribution-NonCommercial-Share

4.7 Special circumstances?

Individuals can only attempt to alter risk factors they are aware of and need to be informed about what is relevant to them. Women and men have different considerations, and ethnic background can also have an influence on susceptibility to cardiovascular diseases. Such considerations require improved awareness based on reliable knowledge from scientific studies (see Author(s): The Open University

4.6 A balanced diet

Our diet is simply what we eat and drink. Diet does not mean that we are trying to lose weight, although sometimes this is necessary. What we eat is very important, particularly in people with diabetes (as you found out in Section 3). Our wellbeing is influenced by whether or not we eat a balanced diet. A balanced diet is one
Author(s): The Open University

License information
Related content

Except for third party materials and/or otherwise stated (see terms and conditions) the content in OpenLearn is released for use under the terms of the Creative Commons Attribution-NonCommercial-Share