Action of drugs that target enzymes
To describe how enzymes function and how drug inhibitors block this action.
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Ovation on shot lawmaker's DC return
Aug 2 - U.S. Representative Gabrielle Giffords gets a standing ovation as she returns to Washington for the first time since she was shot in the head. Rough Cut (no reporter narration).
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2.2.1 What is the difference between a worm and a virus?

Unlike a virus, a worm does not infect files on a host computer. Instead it adds a file to the computer that is malicious code, and runs it 'in the background'. A computer has many programs running in this way in order for its system to operate. For instance, when you create a document you can see the text editor, such as Microsoft Word, Notepad or Star Office, but in the background the spell checker or the printer program are working even though you do not see them on the screen.

Worms
Author(s): The Open University

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2.1 Mammalian dentition

Insects are generally very small animals. Many kinds are hard work to collect and not very nutritious because a high proportion of their mass is a protective and indigestible outer layer, called cuticle. Insectivorous mammals need to eat large numbers of insects to fulfil their energy requirements.

Insect eaters have diverse ways of catching and dealing with their prey; teeth play a crucial role. Indeed, teeth are of such enormous significance to mammalian diets in general (and are so r
Author(s): The Open University

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Malaysian airliner crashes in Ukraine
Emergency services attempt to put out fires around smouldering wreckage of Malaysian airliner that crashes in Ukraine, killing all on board. 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, national, and internatio
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The Civil War in Four Minutes
One second per week, casualty counter in the lower right. (04:23)

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Science and Religion on the Radio
Talk given by Martin Redfern as part of short course 2
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Demythologising the Historical 'Conflict' between Geology and Genesis
Research seminr given by Prof. Martin Rudwick
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Faith in an Age of Science: The Challenge of the Neurosciences
Talk given by Prof. Bill Newsome as part of short course 3
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Introduction

The Open University course S250 Science in context looks at a range of science-based topics of current or recent importance to public debates about science. It does this by examining the scientific facts and concepts that underpin such areas as genetic modification, medicinal plants and climate change, and in doing so aims to forefront a number of themes that we feel are of value in gaining greater insight into these types of controversies. At the points in the text where one or more o
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8.325 Relativistic Quantum Field Theory III (MIT)
This course is the third and last term of the quantum field theory sequence. Its aim is the proper theoretical discussion of the physics of the standard model. Topics include: quantum chromodynamics; the Higgs phenomenon and a description of the standard model; deep-inelastic scattering and structure functions; basics of lattice gauge theory; operator products and effective theories; detailed structure of the standard model; spontaneously broken gauge theory and its quantization; instantons and
Author(s): Stewart, Iain

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Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative C

3.3 Specialisation within language areas: aphasia

Aphasia is caused by localised brain damage, for example due to a stroke or an automobile accident. General intellectual functioning is not necessarily impaired, as the person can still perform non-linguistic tasks. Nor is the understanding and production of language necessarily completely abolished. Instead, there are highly specific patterns of impairment in the way language is processed.

Aphasia is divided into two main types, fluent and non-fluent. For reasons which will become appa
Author(s): The Open University

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12.815 Atmospheric Radiation (MIT)
This is an introduction to the physics of atmospheric radiation and remote sensing including use of computer codes. Subjects covered include: radiative transfer equation including emission and scattering, spectroscopy, Mie theory, and numerical solutions. We examine the solution of inverse problems in remote sensing of atmospheric temperature and composition.
Author(s): McClatchey, Robert,Prinn, Ronald G

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4.3 Hairpin formation and micro-RNAs

A class of small RNA molecules called micro-RNAs (miRNAs) has been identified in recent years. The roles of these small RNAs are only just beginning to be understood, but many are expressed only at specific developmental stages. Indeed, the first observations of miRNAs were made in C. elegans because of their mutant developmental phenotypes. The genes that encode these miRNAs are called mir genes (pronounced ‘meer’) and have now been identified within the genomes of v
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2.1.1 What do we mean by 'infect'?

A virus will attach itself in various ways to a file that already exists on a 'host' computer, and when that file is run, the virus activates as well. A computer virus works in a similar way to a biological virus.

Biological virus: an infectious agent of small size and simple composition that can multiply only in living cells of animals, plants or bacteria.

Computer virus: an infectious program of small size that
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Highlights from Lesson Planning Workshop
Highlights of a workshop in which teachers explore different ways planning lessaons is the purpose of this 8:30 long video. The first couple of minutes are not relevant to the purpose of the video. The more important elements start at the four minute mark. This video may have value to new teachers.
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2.000 How and Why Machines Work (MIT)
Subject studies how and why machines work, how they are conceived, how they are developed (drawn), and how they are utilized. Students learn from the hands-on experiences of taking things apart mentally and physically, drawing (sketching, 3D CAD) what they envision and observe, taking occasional field trips, and completing an individual term project (concept, creation, and presentation). Emphasis on understanding the physics and history of machines.
Author(s): Smith Jr., Joseph,Culpepper, Martin

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The Winter's Tale by William Shakespeare, Part 3 of
This BBC animated version of the great classic by Shakespeare brings his words to life. Animation brings these stories to younger students. It uses Shakespeare's words and has the words at the bottom of the screen. Educators can pause the film to discuss the different passages. Suitable for older middle school and high school students.   (7:51)
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Introduction to Nanochemistry
Introduction to nanochemistry and why it is important to scientists today. Discusses both the positive and negative impacts of nanotechnology. Good demonstrations. Grades 9-12. 2:59 min.
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