2.3.4 Klein bottle

There are two other surfaces that can be obtained by identifying both pairs of opposite edges of a rectangle. In one of these, shown in Figure 31, we first identify the edges AB and A'B', labelled a, in the direction shown by the arrowheads. This gives us a cylinder, as before. We then try to identify the cylinder
Author(s): The Open University

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9.3 Parents' responses to the risks

Bellaby, P. (2003) ‘Communication and miscommunication of risk: understanding UK parents' attitudes to combined MMR vaccination’, British Medical Journal, 327, 27 September 2003, pp. 725–28. Reproduced by permission from the BMJ Publishing Group; Mary Evans Picture Library Ltd; P A Photos.

Although road transport crashes carry by far the largest risk of the three, they have raised little controversy.

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Atoms: Protons, Neutrons, and Electrons - by StudyJams
An atom is a tiny particle in matter, and atoms are made of protons, neutrons, and electrons.  Some matter, like your body or your book, is made of lots of different kinds of atoms, but elements are made up of only one kind of atom. Learn more about atoms with this cartoon animation from StudyJams.  A short, self-checking quiz is also included with this link. 
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A Brief SAT Writing Introduction
This is a very brief, but clear, overview of the structure and scoring analysis of the SAT Writing section. (01:17)
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Researchers Say There's Evidence that Consciousness Continues after Clinical Death
Researchers at NYU's Langone Medical Center have conducted a study of patients who have experienced near-death experiences, and the results are intriguing and chilling. Dr. Sam Parnia, the director of resuscitation research at NYU Langone, joins CBSN to discuss the findings of this mind bending study. (06:02)

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References

Ajzen, I. (1985) in Chaiken, S. and Stangor C. (1987) ‘Attitudes and attitude change’, Annual Review of Psychology, vol. 38, January, pp.575–630.
American Marketing Association (2004) Marketing News, 15 September, p.3.
Andreasen, A. (1995) Marketing Social Change – Changing Behaviour to Promote Health, Social Development and the Environment, San Fr
Author(s): The Open University

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1.3.1 Try some yourself

1 Write each of the following three numbers in numerals and then place them in ascending order:

  • eight hundred and eight thousand

  • two million and twenty-four

  • nine thous
    Author(s): The Open University

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2.9 Iron (Fe)

The ability of blood to carry oxygen is due to the presence of the red pigment, haemoglobin, present in red blood cells. Haemoglobin is a protein formed from four polypeptide chains called globins, in the centre of each of which is a small non-protein part called a haem group (haima is Greek for ‘blood’). Each of the haem groups has an iron atom within it (Author(s): The Open University

ar - Phase 3 Digraphs
The ar grapheme makes a vowel sound and is therefore considered a
vowel digraph. Learn some ar words in this clip.  A learning activity with this clip would be for children can point out the ar grapheme in the words. 

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Scales
This is one of the most basic starting points of music. The individual note or tone is played and explained.  Tone is a sound that occurs at a specific frequency.  Notes are the individual keys on the piano; there is a group of two black notes and a group of three black notes.  Scales are the combinations of whole and half steps. There are major and minor scales.
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Paul—Grade 6

Paul, a sixth-grade science teacher, wants to involve his students in the minds-on components of science tasks.


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Southaven High School Choir Practice
In this video, the Southhaven, MS High School choir practices for an upcoming concert. (2:19)

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Choosing a Web Browser on Vimeo
In this video we talk about a few different web browsers you should check out. What do you currently use to browse the web, whether that is at home or on the go? Firefox is the browser that is recommended in this video.  Firefox is open source and works very well. Flock is good for social media.  Safari is now out for Windows and Mac.
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Between the Lions: "Chicken Jane & the Aardvark"

Here's another heroic adventure sequence from "Between the Lions" -- the story of how Chicken Jane saved Scot and Dot from a hard-charging aardvark pulling a cart containing a huge marshmallow. Video is short, but is helpful to kids who are trying to master the “ar” sound.  Some words are printed on the screen.  This video is of good quality and would be good for early readers to help with word recognition.


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An Evaluation of Neural Spatial Interaction Models Based on a Practical Application
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This work will discuss how the contemporary technological devices, that act like mediators of the gaze, can leverage a global voyeurism in an already established scopophilic and surveillance-panopticism culture. This analysis will be done from a perspective within the art and technology, where productions in contemporary visual arts resort to this state of affairs to propose their poetics and to present a critical and reflective reading about a society, facing a reality where privacy and individ
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Grammatical design is useful for the generation of a set of related designs. The concept of type aids designers in generating designs with a specified structure. However, existing studies in grammar are ambiguous in their definition of type in the language of designs generated by a grammar. Extending our previous study of defining style in grammar, this paper provides a formal definition of the concept of type in the language of designs generated by a grammar. This is done with the help of a des
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Many buildings around the world have undergone successive changes over their life cycles. Regardless of the type or size of a building there are usually requirements for change due to several unanticipated forces and emerging uncertainties that act upon them. These changes might be in the building?s spatial, structural or service systems. This can be due to changes in the needs of occupants, the market demand or technological advances. Although buildings undergo change, current design practice d
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