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Climate change in northwest China over the past millennium
Around half of the world’s population lives under the influence of the Asian monsoons. The sustainability of water resources, which is intimately tied up with future monsoon variability, is a critically-important issue in northwest China where development is taking place at the margins of agricultural productivity and towards the fringe of the landward penetration of summer monsoon rainfall. Understanding the likely future behaviour of the Asian monsoons is therefore critical for the people of
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Faculty Panel: Policy and History (Part 2)
Featuring Walter Block, Thomas DiLorenzo, Guido Hülsmann, Robert Murphy, Timothy Terrell, Mark Thornton, and Thomas E. Woods, Jr. Recorded at the Mises Institute in Auburn, Alabama, on 25 July 2014.

Try some yourself

1 Find the area of a circle of (a) radius 8 cm, and (b) radius 15 m.

Answer

  • (a)

    Author(s): The Open University

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    Choral Vespers Worship Service - 3/5/15
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    1.4 TSEs and non-human animals

    Several TSEs of non-human animals were also known before the recognition of BSE and others have come to light subsequently. The most significant of the former is scrapie, a disease of sheep that has been known for over 200 years. Its symptoms include irritability, excitability, restlessness, scratching, biting, rubbing of the skin (hence its name), loss of wool, weight loss, weakness of the hindquarters and sometimes impaired vision. Some breeds are relatively resistant to the disease (e.g. S
    Author(s): The Open University

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    20.441J Biomaterials-Tissue Interactions (MIT)
    This course covers the principles of materials science and cell biology underlying the design of medical implants, artificial organs, and matrices for tissue engineering. Methods for biomaterials surface characterization and analysis of protein adsorption on biomaterials. Molecular and cellular interactions with biomaterials are analyzed in terms of unit cell processes, such as matrix synthesis, degradation, and contraction. Mechanisms underlying wound healing and tissue remodeling following imp
    Author(s): Yannas, Ioannis,Spector, Myron

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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

    Promo - One Minute Romanian
    Hello! My name is Roxana and I'd like to welcome you to One Minute Romanian from the Radio Lingua Network. In this podcast I'm going to be teaching you the basics of Romanian. The great thing about this language course is that you'll be learning all you need to know in just 60 seconds - or thereabouts! Each one minute language lesson will equip you with just enough Romanian to help you get by in lots of situations, either on holiday, or on a business trip to Romania, or just to impress your Roma
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    Diversity and compounding for enhanced discrimination of breast masses in ultrasonic B-scan images
    Ultrasonic tissue characterization aims at improving the ability of ultrasound to classify benign and malignant masses. The akagami distribution was recently proposed to model the statistics of the envelope of the backscattered echo from tissue. Its parameters demonstrated an ability to discriminate benign and malignant masses in breast tissue. However, there is a need to improve the performance of the parameters to reach clinically acceptable standards and also to eliminate any influence of var
    Author(s): Dumane, Vishruta Ajitkumar

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    End of unit questions

    Question 1

    Explain your reasons for agreeing or disagreeing with each of the following sentences.

    (a) If a disease has a genetic basis and someone has the (abnormal) alleles for the disease, then that person will have the symptoms of the d
    Author(s): The Open University

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    4.5 The ageing brain

    The cellular components of the human brain are remarkably heterogeneous, both morphologically and functionally. The brain is a very complex structure, composed of around one hundred thousand million (i.e. 1011) Author(s): The Open University

    Political Correctness
    This lesson deals with political correctness. There is a definition of PR and there is useful vocabulary presented. There is reference to attitude and how the things we say influence others. There are clear examples about gender, physically challenged, ethnic groups, etc.
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    2.4 Review

    In working through this section, you have identified some of your initial expectations and I have explained some of what I think you will discover as you work through the unit. It would be appropriate at this point to look at some of the questions I asked you about your expectations again and note ways your expectations have changed.

    Spend a total of around 30 minutes on the next three activities.

    Author(s): The Open University

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    8.2 Wilson's disease

    The effects of a protein that is absent, or present but not doing its job, may not be evident for many years. This is called late onset, and is exemplified by Wilson's disease. Many molecules within the body require small amounts of minerals such as iron, magnesium or copper to function properly. There are mechanisms for absorbing these minerals from the diet. However, in excess, these same minerals can be toxic, as is the case with copper. So there are also mechanisms for getting rid
    Author(s): The Open University

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    Supertasters Taste Buds
    Detailed video on how taste buds work. Video shows how saliva breaks down food so the taste buds can go to work. Discusses the differences between bitter, sweet, salty, or sour taste buds. The video shows the differences between a nontaster and a super taster. Run time 04:07.
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    "Double Image" Poem by Judith Wright
    A photographic interpretation of "Double Image" by Judith Wright accompanied by music ("The Finish Line" by Snow Patrol) and the words of the poem fading, too quickly, in and out.  (2:11)
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    Autonomous mechanisms in architectural design systems
    The development of architectural design systems that describe fully the form, structure and behaviour of a design relies heavily on the incorporation of intelligence in the representations, analyses, transformations and transactions used by the computer. Traditionally such intelligence takes either of two forms. The first is a methodical framework that guides actions supported by the design system (usually in a top-down fashion). The second is local, intelligence mechanisms that resolve discrete
    Author(s): Alexander Koutamanis

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    Introduction

    We can study the individual properties of individual stars, such as photospheric temperature, luminosity, radius, composition and mass. If we wish to understand more about stars and obtain some insight into their evolution, we need to look at the overall distribution of stellar properties. We would like to know the answers to such questions as ‘Can stars have any combination of these properties?’ and ‘How many stars are there of each type?’ We can potentially learn a lot more about th
    Author(s): The Open University

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    Introduction to Magnetism - Khan Academy
    An introduction to magnetism. This video, starts with a black screen because the instructor, in his conversational tone, uses it as a 'chalkboard.' Instructor uses different colors for clarification.  (10:44)
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    Magnetism 2
    Magnetic fields and their effects on moving electrical charges. This video, starts with a black screen because the instructor, in his conversational tone, uses it as a 'chalkboard.' Instructor uses different colors for clarification. Run time 08:58.
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    Polovtsian Dances by Alexander Borodin
    Mikhail Fokine's choreography for the Polovtsian Dances by Borodin, as performed by the Kirov Opera and Ballet under Valery Gergiev. From PRINCE IGOR, available on DVD from Philips. (6:09)
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