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
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Digital Nepal
Nepal is one of the poorest countries in the world, so just how has it managed to develop a wireless network and promote innovation? This collection explores how Nepal has developed its digital technological infrastructure, how it is still developing from a complex political background and gives a sense of how different cultures around the world relate to digital technology. The videos look at the country's recent history, with particular focus on education, health, language and the economy. Th
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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

1.2 Developing countries

Question

Which countries in the world are classified as ‘developing countries’?

There are various definitions of ‘developing countries’, none entirely satisfactory. The WTO allows members to class
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7.3 Running the models forward

What happens when the models are run forward? It depends upon the models used and the scenarios they are asked to run. It seems almost certain, however, that there will be increases in the global mean surface temperature, to the order of +1.5 to +4.5 °C (– possibly more, according to some models and scenarios.

These changes are predicted to be associated with increases in sea level, changes to weather conditions (e.g. more regular and violent winter storms in the UK) and changes to t
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The Alphabet Song for Sign Language
This song teaches the ABCs for Sign Language. Through music you can learn how to sign. Each letter is shown next to a hand modeling how to sign it. It is very clear, slow-placed, and well presented. (02:29)
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1.4 Stellar masses and stellar evolution

Measured masses range from about 0.08M to about 50M, a large range, with the Sun again showing up as an average sort of star. At the upper end we have some true monsters, but even at the lower end we have bodies that are still far more massive than the planets.

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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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Singapore icon 'critical'
The 91-year-old man seen as the founder of modern day Singapore is critically ill in hospital. Paul Chapman reports. Subscribe: http://smarturl.it/reuterssubscribe More updates and 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 international news. For over 160 years, Reuters has maint
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Try some yourself

Activity 21

Without using your calculator solve the following calculations.

  • (a) 3 + 5 × 2 = ?

  • (b) 12 − 6 + 6 = ?

  • (c) 6 + (5 +
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2.2.3 The effect of people and places

The footprints in the above Carbon Trust and National Statistics studies are for an average UK citizen. But footprints vary for different individuals and households. For example, another study showed that, on average, people aged 50 to 64 have heavier footprints than all other UK age groups, mainly due to their high spending on car and air travel, eating and drinking, and medical and financial services (Haq et al., 2007, p. 7).

The National Statistics study showed that the UK regions wi
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2 Explaining fertility decline from a feminist perspective

Feminist theory underpins one of the most influential historiographies of fertility decline and it allows us to foreground gender as a dominant feature in questions of heterosexuality and parenthood. This is not to suggest that divisions of class, ‘race’, (dis)ability and generation are unimportant in this historical phenomenon, and any full understanding of fertility decline would be incomplete without including them. But in this unit the main focus will be on gender and these other soci
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UMMC Physician Profile: Seema Patil, M.D.
This two-minute video introduces viewers to Dr. Seema Patil, an assistant professor in the division of gastroenterology and hepatology at the University of Maryland School of Medicine. Dr. Patil's special interests include general gastroenterology, inflammatory bowel disease and women's health. Watch this video to learn more about her practice at UMMC. Related Links: UM Digestive Disease Center http://www.umm.edu/digestive/index.htm Division of Gastroenterology and Hepatology http://www.umm.
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Conclusion

Hydropower was the earliest means of commercial electricity generation, and currently dominates alternative electricity supply. However, its global capacity for large-scale exploitation is less than six times that currently installed.

Growth of hydropower is slow and its contribution to global electricity supply is falling. Both are due to economic factors, the slow pace of large-scale project construction, the remoteness of high-potential sites, and increasing resistance to the social
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Rhythmic Dance Group
Montage of footage of Belle. There is no narration nor instruction, just movement to a French song.
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Learn about The History of the Civil Rights Movement
The History of the Civil Rights Movement - Learn about The History of the Civil Rights Movement in this video. (01:18) The video has vintage images of the era.
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About Inside Outlook with Gavin P. Sullivan
UWTV presents a new current affairs show, Inside Outlook, featuring in-depth discussion about the important issues facing the Pacific Northwest region. In each episode, host Gavin P. Sullivan moderates a panel of community leaders, educators and activists. In this interview, Inside Outlook host, Gavin P. Sullivan, speaks to why he believes that civil discourse is important when discussing controversial issues, the unique culture of the Pacific Northwest and what he hopes to achieve with the sho
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Introduction to the Environmental Change Institute
Introduction to research groups and activities at the Environmental Change Institute.
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2.2 How animals interact with the environment is affected by their body size

Willmer et al. (2000) classify desert animals in terms of the range of body sizes and the rate of evaporation (Figure 8).

Figure 8
Willmer, P., Stone, G. and Johnston, I. (2000) Environmental P
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2.6.1 Weighing up the evidence: the full cast of suspects

Figure 36 (again adapted from the TAR) takes your thoughts on Question 11 on a stage. It gives estimates of the cumulative effect since pre-industrial times of the various climate change agents, with the contributions expressed in terms of radiative forcing. Note that the figure also includes yet another device for communicating the IPCC's confidence in a particular finding - an indication of the 'level of scientific understanding' that accompanies each estimate. This reflects the authors' su
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The sound of silence
Why does each musical instrument have its own unique sound? What exactly distinguishes a guitar from a fiddle? Follow the story as we find out exactly how a musical note is produced and how to create the sound of silence. This material forms part of The Open University course MU120 Open mathematics. The iTunes U team.
First published on Thu, 20 Aug 2009 as Author(s):
The iTunes U team