2.1 Institutional science promotion events

Nowadays, engaging with science through an institutional science promotion event can be quite straightforward. You can find out about such events by, for example, reading posters in your local library, watching a science documentary on TV or browsing the internet. The range of such outreach events is remarkable – from long-standing mainstream programmes such as the Royal Society Christmas lectures on TV and the annual BA (British Association for the Advancement of Science) Science Week, to
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5.5 Summary of Section 5

When oestradiol combines with its receptor inside neurons, the cell produces proteins which protect it from cell death. As a consequence, the male brain, which has oestradiol in its neurons in early life, becomes different from the female brain, which does not have oestradiol in its neurons. Retinoic acid is needed in high concentrations to produce those proteins associated with posterior structures of the embryo, whilst retinoic acid is needed in low concentrations to produce those proteins
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Session 3: Creating a blogging environment

student learning journey image, JISC

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Active galaxies

Figure 6 shows a schematic optical spectrum of an active galaxy. It is immediately apparent that the emission lines are stronger and broader than in the spectrum of a normal galaxy shown in Author(s): The Open University

Active galaxies

Figure 10 shows the spectral energy distribution of an active galaxy.

Figure 10
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3.7 Protein phosphatases

Together with inositolphospholipid phosphatases, protein phosphatases are key regulators of signal transduction pathways. Like protein kinases, protein phosphatases are either tyrosine phosphatases (the majority of protein phosphatases, some of which are shown in Figure 44) or serine–threonine phosphatases (including the phosphoprotein phos
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3.4 Second messengers

In the previous section, we have discussed the principles of second messengers (Section 1.5) and, in particular, those produced by PLC (IP3 and DAG) and PI3 kinase (PI(3,4)P2 and PI(3,4,5)P3). We shall now consider the roles and mechanisms of action of the other chief mediators, which are Ca2+ ions, cAMP and cGMP
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9.1 The psychological arena

The examples in the previous section followed the traditional medical approach, namely that there is a disease, it can be diagnosed (identified), and the cause of the disease, be it viruses, bacteria, pathogens, genes or poisons, can be sought. This section moves away from the medical arena and into the psychological arena, where the symptoms are behavioural. In this case, the symptoms are socially unacceptable behaviour and to the list of causes just mentioned is added family circumstances a
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A Jewish soldier from Eretz Israel in the British Army, describes meeting survivors in Italy
http://www.yadvashem.org/yv/en/exhibitions/dp_camps_italy/index.asp The exhibition “DP Camps and Hachsharot in Italy after the War”, brings the story of the many thousands of Holocaust survivors in the dozens of DP camps that operated in Italy after World War II. While these camps served as temporary transit stations for the survivors, it was there that they also started to cope with the enormity of their loss, at the same time preparing themselves for a new chapter in their lives with the
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2.4 Critical magnetic field

An important characteristic of a superconductor is that its normal resistance is restored if a sufficiently large magnetic field is applied. The nature of this transition to the normal state depends on the shape of the superconductor and the orientation of the magnetic field, and it is also different for pure elements and for alloys. In this subsection we describe the behaviour in the simplest situation; we shall discuss other more complex behaviour in Section 4.

If an increasing magnet
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7.06 Cell Biology (MIT)
This course deals with the biology of cells of higher organisms: The structure, function, and biosynthesis of cellular membranes and organelles; cell growth and oncogenic transformation; transport, receptors, and cell signaling; the cytoskeleton, the extracellular matrix, and cell movements; chromatin structure and RNA synthesis.
Author(s): Ploegh, Hidde,Orr-Weaver, Terry

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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

Purdue Day of Giving Krannert Challenge
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High magnification SEM image of open cell polyurethane foam
If a gas is injected into a liquid it forms a cellular foam structure. When a thermoset prepolymer of low viscosity is foamed, the polymer can drain from the cell walls (driven by surface tension) before it sets at the cell edges, leaving an open-celled foam. The cell edges have three concave sides, and some remnants of collapsed cell walls can be seen at the cell edges.
Author(s): DoITPoMS, University of Cambridge,J A Curran, Depa

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http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

2.7 Geological problems in coal mines

A modern coalface is a very complex operation that represents a large investment in terms of capital, labour and planning. Cutting machines and lengthy conveyors are inflexible and require uniform geological conditions to maximize output. What then are the effects of geological variations on such a mining system?

Geological factors control the selection of working areas. The two principal geological conditions that affect mining operations are, first, the nature of the coal-bearing rock
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Conclusion

This free course provided an introduction to studying Mathematics. It took you through a series of exercises designed to develop your approach to study and learning at a distance and helped to improve your confidence as an independent learner.


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5 Conclusion

Domesticated organisms evolve in artificial environments under artificial selection, and opportunistic or enforced hybridisation often occurs between species that would not normally interbreed. Natural selection cannot be eliminated and continues to operate. At least two different forms of dwarfism are common in domesticated livestock and humans, but only the rarer midget type of dwarfism occurs in wild lineages. Domesticated mammals and birds have distinctive patterns of skin pigmentation th
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6.5 Summary of Section 6

Growth cones respond to proximal and distal cues. The proximal cues in the extracellular matrix or other cells affect adhesion and result in chemotactic guidance. Distal cues are also in the extracellular matrix but they diffuse through it and result in the growth cone either moving towards the source (attractants) or away from it (repellants). These distal cues are chemotropic cues and can have different effects on different growth cones; what may be an attractant to one growth cone may be r
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Native American Portraits
This is a video of portraits of the famous Native Americans of history: Powhatan, Pontiac, Tecumsah, Sequoiya, Sitting Bull, Red Cloud, Crazy Horse, Geronimo, Joseph, Jack, and others. However, the people are not identified. Music is "Mountain" Apache Song & Drogo's Pan Ethnic Quintet. (02:20)
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The Writing Process: You Can't Write Well Without It PowerPoint
This PowerPoint presentation is a review of the steps in the writing process.  It talks about prewriting, brainstorming, outlining, drafting, word choices, revising, proofing, and presenting.  This video itself is quite simple, but the information presented is very thorough.
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