7.3.1 Library-based methods for demonstrating an interaction between proteins

As well as the biochemical approaches to studying protein–protein interactions, there is a variety of qualitative methods for screening ‘libraries’ of cloned genes or gene fragments whose protein products might interact with a protein of interest. Such an approach has the advantage that the genes that encode those proteins that bind are available immediately for expression, facilitating subsequent analysis of the protein.

The two-hybrid system uses transcriptional activity
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14.04.2012 – Langsam gesprochene Nachrichten
Trainiere dein Hörverstehen mit den Nachrichten der Deutschen Welle von Samstag – als Text und als verständlich gesprochene Audio-Datei. Die Entsendung einer Beobachtermission der Vereinten Nationen zur Überwachung der Waffenruhe nach Syrien verzögert sich. Russland stellte sich im UN-Sicherheitsrat gegen eine von westlichen und arabischen Staaten formulierte Resolution. Moskaus UN-Botschafter Witali Tschurkin meinte, es müsse alles herausgestrichen werden, was für diesen besonderen Zwe
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2 Odd one out

The image below shows models of four mammals:

  • Rhinoceros

  • Whale

  • Elephant

  • Hippopotamus

Figure 1
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8 Water and its impurities

Water must be of a certain quality to be suitable for human consumption. No natural water found on Earth is pure; any sample of water contains more than just water molecules. Some materials, such as sodium nitrate, are very soluble and dissolve in water in large quantities, whereas other materials are much less soluble. This is just as well, otherwise rain would dissolve all the rocks and they would end up in the oceans!

Drinking water must not contain harmful materials, which means bot
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Malaysia and Singapore: Models for the Asian Century?
Chaired by Basham Professor Anthony Milner from the ANU School of Culture, History & Language, this expert panel examines the question 'Malaysia -Singapore: Models for the Asian Century?' as part of the inaugural Malaysia-Singapore Update at The Australian National University. Both Malaysia and Singapore have had a long and close association with Australia in areas including economic cooperation, education, security and refugees. The longstanding governments of these two economically thriving s
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Oil tanker was hijacked by Libyan gunmen, captain says
Now held in a Libyan jail, the captain of an oil tanker -- said to have been seized by a group of armed fighters -- says he and his crew had no choice but to comply with the ship's captors. Jillian Kitchener reports. 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 busi
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7.90J Computational Functional Genomics (MIT)
The course focuses on casting contemporary problems in systems biology and functional genomics in computational terms and providing appropriate tools and methods to solve them. Topics include genome structure and function, transcriptional regulation, and stem cell biology in particular; measurement technologies such as microarrays (expression, protein-DNA interactions, chromatin structure); statistical data analysis, predictive and causal inference, and experiment design. The emphasis is on coup
Author(s): Gifford, David,Jaakkola, Tommi

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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

Introduction

Energy from sources other than fossil or nuclear fuels is to a large extent free of the concerns about environmental effects and renewability that characterise those two sources. Each alternative source supplies energy continually, whether or not we use it. Many alternative sources of energy have been used in simple ways for millennia, e.g. wind and water mills, sails, wood burning – but only in the last two centuries has their potential begun to be exploited on an industrial scale. Except
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A-Z HIV/Aids reporting practical guide
Published by the Kaiser Family Foundation, this practical guide which is intended for journalists provides information on HIV/Aids reporting for the media. The guide covers the basics of HIV/Aids reporting; tips on how to pitch stories to editors, and gives advice on ethical reporting. Lists are provided on additional resources with a glossary, a timeline of the history of HIV, FAQ, explanations utilised and details on treatments used for HIV/Aids. The last two chapters concentrate on TB and mal
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Hand Gestures, Kinect and Conversations

This inspirational project provides another view of how the Kinect might be used to extend and enhance communication and interaction (and as a "hand talker" myself I think it's just kind of cool :)

Kinect for Windows helps decode the role of hand gestures during convers
Author(s): Greg Duncan

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Rights not set

Kids Tell the Story
History is in the hands of Junior Interpreters all summer long, as the story of the Revolution expands to include a kid's perspective. Pam Blount tells us how sites involve children in the 18th century and today.
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Persoonsvorm - onderwerp : Werkblad
zinsleer.jpg

Met dit werkblaadje oefen je op het zoeken van de persoonsvorm en het onderwerp.


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Battle for Color TV I
If Peter Goldmark had had his way, television would never have been broadcast in black and white. (3:39)
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2.3.2 Geophysical methods — seismic surveying

Geophysical survey methods use measurements made at or near the Earth's surface to investigate the subsurface geology. The most widely used geophysical method is seismic reflection surveying; a rapid and highly cost-effective way of gathering data.

A seismic source (produced either by the explosive release of compressed air in a shallow borehole, or a heavy pad vibrated hydraulically at the surface) generates seismic waves that travel through the ground (
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Sunday Service Live - 5/18/14 - Carol Gregg
Sunday Service Live - 5/18/14 - Carol Gregg
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1.7.1 Carboniferous mires

During the late Carboniferous, mires developed over vast areas of the UK. Much of today's land area was an extensive, low-lying plain bordering a sea to the south (a sea that was soon to be the site of a mountain-building episode). Any mountains that existed lay hundreds of kilometres to the north. Large river systems meandered southwards across these plains.

At that time, the UK lay in tropical latitudes, almost on the Equator (see Author(s): The Open University

1.7 How old is coal?

Not surprisingly, the distribution of coal deposits through time corresponds closely to the origin and distribution of land plants. (This is discussed further in Section 4.) Coals are commonly found in rocks from Carboniferous times onwards, Devonian coals are rare, and pre-Silurian true coals are never found. This coincides with evidence for the evolution of land plants, which first appeared in Silurian times about 400 Ma (million years) ago, colonized the land surface rapidly through the De
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1 Geothermal energy

Although energy from the Earth's interior that flows though the surface is on average very low — about a thousand times less than the solar energy that falls on the surface — it is sufficiently abundant worldwide to make it locally worth exploiting. The top 3 km of the Earth's crust stores an estimated 4.3 × 107 EJ of thermal energy by virtue of the temperature of rocks and their thermal capacity. Because global consumption of energy during 2002 was 451 EJ heat stored within t
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Practicing Handwriting Using Air Writing
Student/Teacher Created Video- A student demonstrates how to use air writing to practice how letters are formed BEFORE using pencil and paper.  Sound is not clear. (3:06)
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2.7 Treatments for obesity

At this point you may be wondering what the range of studies that we have examined might suggest in terms of treatment for obesity. As you have seen, weight gain essentially arises from an imbalance of energy supply and energy expenditure. Therefore it is not surprising that dieting (restriction of energy input) and exercise (increased energy output) are recommended both to reduce body weight and also for their additional health benefits. However, even a quick survey of the research literatur
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