Reuters Today: Fiscal cliff gloom casts clouds
Nov. 28 - Fresh worries over the U.S. economy turn investors risk-averse and instability in the Middle East adds pressure.
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Sports Spread: Can Chelsea Hammer out a Win at West Ham?
Nov. 29 - New Chelsea boss Rafa Benitez is hoping to banish Chelsea's blues at West Ham. Plus Harry's in the hotseat at QPR and England take on the All Blacks.
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3XSQ: U.S. Q3 growth raised to 2.7% on strong inventories
Nov 29 - The U.S. economy grew faster than initially thought in the third quarter, but the momentum is unlikely to be sustained.
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Arthur's Perfect Christmas--Part 1 of 4
This is a fun resource to help celebrate Christmas in the classroom and at home. Various traditions are addressed in this Arthur movie. (14:05) Part 1 of 4
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Arthur's Perfect Christmas Part 3
Arthur's Perfect Christmas
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Lesson 09 - One Minute Romanian
In lesson 9 of One Minute Romanian you will learn to ask people how they're feeling and to answer the question yourself. Remember - even a few phrases of a language can help you make friends and enjoy travel more. Find out more about One Minute Romanian at our website - http://www.oneminutelanguages.com. One Minute Romanian is brought to you by the Radio Lingua Network and is ©Copyright 2008.
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Lesson 10 - One Minute Romanian
In lesson 10 of One Minute Romanian you will learn a few useful phrases which all learners want to learn. Remember - even a few phrases of a language can help you make friends and enjoy travel more. Find out more about One Minute Romanian at our website - http://www.oneminutelanguages.com. One Minute Romanian is brought to you by the Radio Lingua Network and is ©Copyright 2008.Author(s): No creator set

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Colloquium Week 5: "Funding Conservation and Development in the Dominican Republic"
A Paper detailing fieldwork analysing funding for conservation and development in the Dominican Republic. The debate over the best way to conserve biological resources while allowing for the development of communities that live around or in and work with those resources has long been contentious. The degree to which forest residents, subsistence farmers, and indigenous tribes degrade or protect biodiversity remains unresolved, as does the best way to merge the interests and needs of communities
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1.1.1 Try some yourself

1 Evaluate the following:

  • (a) 62

  • (b) 0.52

  • (c) 1.52

Answer<
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4.7 Summary

Human activity has been responsible for some extinctions and othe deleterious changes to habitats. These changes have not always been the result of thoughtless or selfish behaviour; often intentions were worthy, but outcomes were not as predicted. The importance of genetic diversith is demonstrated here in relation to Dutch Elm disease. The need to retain genetic diversity in plants, used for food and medicine, is recognized in such initiatives as the Kew Milennium Seed Bank Appeal.


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1.3 Activity 1

Activity 1

Before you read on, I would like you to dwell for just a moment on the significance of this shift from direct investment by Western firms to the establishment of subcontracting ties with overseas partners. Aside from outside
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5.14 Desalination

In many parts of the world, surface water or non-saline groundwater stocks are not adequate to satisfy the water demand. While one may immediately think of the Middle East as being one such area, it is less obvious that many islands (e.g. the Canary Isles, Madeira, the Channel Islands) also suffer the same problem. In such circumstances, people have been forced to consider the sea and brackish underground aquifers as water sources. To make these saline waters potable, the salt has first to be
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3.5 Design of the bridge

The design of the original structure was governed by applicable standards in 1926. The official inquiry found that the design and build fell within those limits, the most important being the allowable stress in the eye-bar chain of 345 MPa. The steel was to be made with a maximum elastic limit of 520 MPa, with a safety factor on the strength of the steel of 2.75. It was argued at the time that over 70 per cent of the load was from the self-weight of the structure. Other suspension bridges of
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3.4.4 Stress concentration at joint

Although it is known that a round hole in a flat sample will theoretically produce a stress concentration of about 3, the issue was decided experimentally. A tensile test at 25 °C was undertaken on an intact eye-bar-pin assembly from the bridge, being some 8 m long and from a lower part of the chain. It yielded at about 7 MN, and fractured in the shank at a stress of about 770 MPa. The yield stress in the shank was about 520 MPa, and the failed eye bar showed ductile behaviour with a reducti
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3.4.3 Simulated environmental tests

The investigators wanted to know about the fatigue properties of the component, to find a feasible explanation of why it took 39 years for the eye bar to break. They needed information on the several stress corrosion mechanisms that were possible in the material, including hydrogen embrittlement, the effects of sulphur compounds such as H2S (hydrogen sulphide) and the effects of moisture and salt. Notched eye-bar material was loaded to failure in various environments.

In fact
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3.4.2 Analysis of the eye-bar steel

Many sections were taken of the steel near the fracture to examine its microstructure, and were compared with different parts of the same eye bar as well as with other eye bars. The sections showed a steel core surrounded by a zone that could be identified as being of higher strength due to the presence of martensite.

Martensite is a strong, hard phase of steel usually formed by rapid quenching from a high temperature.

XPS, X-ray photoelectron spectroscopy, gives information about
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3.4 Analysis of eye bar 330

One particular broken part was recognised quickly as part of an eye bar. There were 146 eye bars in the original bridge, and they were safety-critical because if broken the main chains could be threatened. The eye bar was identified as being from the top joint in the hanging chain nearest the bank and next to the Ohio tower, one of the two lower bars on the outside of the bridge facing north, upriver (Author(s): The Open University

Introduction

This unit provides an overview of John Napier and his work on logarithms. It discusses his approach to this lasting invention and looks at the key players who worked with him, including Briggs, Wright and Kepler.

This unit is from our archive and is an adapted extract from Topics in the history of mathematics (MA290) which is no longer taught by The Open University. If you want to study formally with us, you may wish to explore other courses we offer in
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2 Links between English and Latin

Although Latin is not the direct ancestor of English, as it is of Italian, French and Spanish (the so-called ‘Romance’ languages), it has nevertheless given us an enormous number of words. According to some estimates, nearly half of all English words come from Latin. You may be familiar with the idea that words such as science, transport and solution are derived from Latin, but did you know that street and kipper come from Latin words which entered ordinary spe
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4 Form of memorial

I now want you to think about the form of ‘your’ war memorial. I don't think you will have had any difficulty in knowing what to look for when I asked you whether you had a memorial near to you, and where it was. You may have had to think about the question, and search for the memorial, but you knew what you were looking for.

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