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Greyfriars, Walsingham ME001249

*

GREYFRIARS, Walsingham, Norfolk. Pen and ink sketch showing interior view of altar with tester and dossal in temporary chapel of Capuchin friary. 1937 sketch by Peter Anson.
© Historic England


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Brazil's economy


Author(s): The Economist

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Groter en kleiner dan
groter_dan_kleiner_dan.JPG

Leerlingen vergelijken twee getallen en plaatsen er het juiste teken (>, < of =) tussen. Er wordt gewerkt met getallen tot en met vijf.


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Natuurrampen : Soorten
1.jpg

Deze bijdrage bevat hyperlinks naar filmfragmenten, die ondersteund worden met uitleg in de presentatie. Op die manier worden de betekenis en de gevolgen van een natuurramp telkens toegelicht.

 


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Fotografía en movimiento: Filmmaking DSLR
Recopila, sintetiza y detalla los contenidos trabajados en cada una de las sesiones del taller organizado por Espacio-Red de Prácticas y Culturas Digitales (UNIA)
Author(s): Míchelo Toro

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Glucose Fuel Cells: Brain-Implantable Electronic Devices that Run Like the Brain

"Glucose Fuel Cells: Brain-Implantable Electronic Devices that Run Like the Brain": Video component of the Application for the 2012-2013 Lemelson-MIT Student Prize, by Benjamin I. Rapoport.

 

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Managing coastal environments
Coastal environments are by their nature ever-changing. This unit looks at the example of the Blackwater Estuary in Essex, England, describing how the current state of the estuary came to be. It examines the contests and conflicts that centre on the estuary in terms of managing the environment for human needs and the needs of the other species who make their habitat there.Author(s): Creator not set

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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

3 Reading activity

You will shortly be asked to read through a research paper published in the Journal of Medicinal Chemistry, in which the synthesis and structure–activity relationships of doxazosin and related compounds are described. It has been provided:
Author(s): The Open University

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1.6 Clades and reptiles

SAQ 5

Are the reptiles a proper clade?

Answer

No, because despite the reptiles being derived from a common ancestor, two descendent groups – the birds and the mam
Author(s): The Open University

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Introduction

This unit is from our archive. It is an adapted extract from the Science (S365) module that is no longer in presentation. If you wish to study formally at The Open University, you may wish to explore the courses we offer in this Curriculum Area

This unit is concerned with macroevo
Author(s): The Open University

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4.2 Intermediate forms

In essence, the argument about intermediate forms runs as follows. If whales evolved from a terrestrial ancestor through the accumulation of small differences over time, we should expect to find the fossils of a number of ‘missing links’, i.e. creatures with a mixture of terrestrial and aquatic characteristics. In fact, we might expect to find a succession of such animals, each a little bit more whale-like and a little bit less well adapted to life on land than its predecessor.

To m
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5.2 Summary of Section 5

  1. The structural formulae of organic molecules can be divided into the carbon-hydrogen framework or skeleton, and the functional group(s). In the first approximation, the functional groups are the sites where reaction occurs, the framework remaining unreactive.

  2. This approximation works best when the framework consists of saturated carbon atoms.

Author(s): The Open University

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6.2 Specific difficulties

Some students contend with physical difficulties in reading. Here is one:

And here is another being offered advice by a friend:

Author(s): The Open University

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Copyright © 2016 The Open University

2.12 How likely are particular results?

In real experiments, as opposed to hypothetical ones, it is very rare that scientists make a sufficiently large number of measurements to obtain a smooth continuous distribution like that shown in Figure 7d. However, it is often convenient to assume a particular mathematical form for typically distributed measurements, and the form that is usually
Author(s): The Open University

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2.11 Using a calculator for statistical calculations

Table 3 shows all the values for each step in the process of calculating a standard deviation, so that you can see what the operations encapsulated by Equation 7 actually entail, but you will probably be relieved to hear that it is not usually necessary to carry out such detailed calculations. Scientific and graphics calculators (or computer sp
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2.8 Descriptive statistics

Scientists collect many different types of information, but sets of data may be very loosely classified into two different types. In the first type, so-called ‘repeated measurement’, an individual quantity is measured a number of times. An astronomer wanting to determine the light output of a star would take many measurements on a number of different nights to even out the effects of the various possible fluctuations in the atmosphere that are a cause of stars ‘twinkling’. In the seco
Author(s): The Open University

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2.6 Combining probabilities

The probabilities described in Section 2.3 and Section 2.4 related to the outcomes of a single process, such as repeatedly tossing one coin. Now suppose you were to toss three separate coins simultaneously. What is the prob
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1.4 How precise are the measurements?

Scientists are always trying to get better and more reliable data. One way of getting a more precise measurement might be to switch to an instrument with a more finely divided scale. Figure 4 shows parts of two thermometers placed side by side to record the air temperature in a room.

Figure 4Author(s): The Open University

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2.1 The four rules of arithmetic

You are now going to use the four operation keys (on the bottom right-hand side of the TI-84 keyboard): , Author(s): The Open University

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Does it make sense?

Example 3

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