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

License information
Related content

Rights not set

Outstanding Grads 2012: Bonnie Cheeseman
An interview with an extraordinary CSUN student we profiled in our Newsroom commencement article at: http://blogs.csun.edu/news/2012/05/graduates-4/ directed, shot and edited by Krishna Narayanamurti interviewer/producer: Carmen Ramos Chandler executive producers: Vance Peterson and Stacy Lieberman assistant editor and production assistant: Jacquil Constant music by Impact Music Library special thanks: Lee Choo and Rayetta Esquibel © 2012 California State University, Northridge.
Author(s): No creator set

License information
Related content

2.1.1 Ron revisited

In Case Report 1 you met Ron. Ron is 59 years old, has a BMI of 31 and a central obesity ratio of 0.96, indicating that he is moderately obese, with the fat concentrated in his abdomen, rather than his hips. Clearly a number of factors, some environmental, others relating to Ron's age and all interacting with Ron's genetic constitution, may help to provide an explanation. Let's look at some of these factors in a little more detail. It is clear that Ron enjoys a comfortable lifestyle with litt
Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

3.5.3 Mechano-electrical transduction is rapid

Many other sensory receptors, such as photoreceptors and olfactory neurons, employ second messengers in the transduction process. This is not true for hair cells. The rapidity with which they respond makes this impossible. In order to deal with the frequencies of biologically relevant stimuli, transduction must be rapid. The highest frequency humans can hear is about 20 000 Hz. This in effect means that hair cells must be able to turn current on and off 20 000 times per second (200 000 tim
Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

SP1-40 (207) Henry Fitzroy to Henry VIII 14 January 1527

The National Archives UK posted a photo:

SP1-40 (207) Henry Fitzroy to Henry VIII 14 January 1527

Letter from Henry Fitzroy to Henry VIII, catalogue reference SP 1/40 (207)
Author(s): nobody@flickr.com (The National Archives UK)

License information
Related content

https://www.flickr.com/commons/usage/

3.4.2 Ecological changes

Creation of a reservoir produces ecological changes not only to the area of the reservoir itself, by destroying the natural vegetation, but also upstream and downstream of the reservoir. The gradient of a river upstream of a reservoir may be reduced, so the water will slow down, changing the character of the river, causing deposition of sediment, and changes to the natural vegetation and animal life. Downstream of the reservoir the discharge will change, as well as the sediment load, also aff
Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

Former Singaporean PM's health deteriorates further
The health of former Singapore Prime Minister Lee Kuan Yew weakens further as his son and current Prime Minister Lee Hsien Loong visits him in hospital. Julie Noce reports. Subscribe: http://smarturl.it/reuterssubscribe More updates and breaking news: http://smarturl.it/BreakingNews Reuters tells the world's stories like no one else. As the largest international multimedia news provider, Reuters provides coverage around the globe and across topics including business, financial, national, and i
Author(s): No creator set

License information
Related content

The Sanitary and Phytosanitary Measures (SPS) Agreement: Law, Science and Globalising Markets
The SPS Agreement is one of the most innovative and controversial aspects of the World Trade Organization (WTO). This agreement uses science as a benchmark for assessing the legality of Member State regulation and has, in high profile cases such as EC Hormones and EC Biotech, been used to condemn regulatory measures as unlawful. The agreement, and the institutions which develop and apply it, walk a precarious middle line between trade and public health/environmental protection. This lecture will
Author(s): No creator set

License information
Related content

The Arts in Every Classroom: What is Art?
The Learner Teams and students explore the nature of theatre, music, dance, and visual art as they consider their own definitions for each art form. They watch an excerpt from Quidam, a surrealistic performance piece that combines the four art forms in unusual ways, and begin to explore connections between fantasy and reality.
Author(s): No creator set

License information
Related content

Environment: LA River
Who killed the river that runs through Los Angeles? Did you even know there was a river? Using a mix of archive and new footage , this album tells the fascinating story of a city that has ignored the benefits of its river for decades. Now waking up to the fact that it could be a green belt with more acreage than all of Central Park, river activists are fighting developers to bring back nature to central Los Angeles. Up till now the city conquered the threat of floods by concreting over the river
Author(s): The iTunes U team

License information
Related content

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

Radio-quiet AGNs

There has been a great deal of debate about whether there really are two different types of Seyfert or whether they can both be accounted for by the same model.

For example, suppose that you look at the model AGN in Figure 36a from a direction not too far from the rotation axis of the torus. You will see
Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

Learning outcomes

After studying this course, you should be able to:

  • convert between wavelengths and frequencies

  • describe the main differences between lasers and LEDs as used as light sources for optical-fibre communications systems

  • describe the difference between direct and external modulation of a laser

  • describe the difference in structure and performance of step-index multimode, graded-index multimode and single-mode optical fibres

  • dr
    Author(s): The Open University

    License information
    Related content

    Copyright © 2016 The Open University

7.3 The eukaryotic chromosome

Whilst the bulk of eukaryotic DNA is packaged by proteins different from those in the eubacterial chromosome, the principles of bending DNA and neutralising the negative charges in its backbone are shared. Eukaryotic cells have considerably larger genomes than do prokaryotes (in most cases over 1000 times the size of the E. coli genome – see Author(s): The Open University

Voluntary Carbon Offsets
Introduction to doctoral research project by student Adam Bumpus at the Environmental Change Institute.
Author(s): No creator set

License information
Related content

8.2 Chromosome scaffolds

Most of the chromosomal DNA chains within the interphase nucleus are believed to be held on a scaffold or backbone structure made from various proteins, with loops of between 20 and 200 kb extruding from attachment sites. This chromosome structure is shown schematically in Figure 40. The scaffold, as well as permitting further compaction, serves to bring the DNA together in organised regions. There are many different protein components of these scaffolds, amongst them DNA topoisomerases.


Author(s): The Open University

License information
Related content

Copyright © 2013 The Open University

Indigenous Peoples' Legal Water Forum 2009 Session 9
A forum to explore the rights of Indigenous peoples to be involved in the governance of freshwater. Law Professor Lee Godden and Director of the Centre for Resources, Energy and Environmental law, University of Melbourne, Australia, "Indigenous Property Rights to Water: Environmental Flows, Cultural Values and Tradeable Property Rights in Australia".
Author(s): No creator set

License information
Related content

Learning outcomes

After studying this course, you should be able to:

  • understand the legal framework of the Health and Safety at Work etc. Act 1974 and Regulations associated with it

  • understand the employers’, employees’ and visitors’ duties

  • evaluate hazards and risks in order to carry out a risk assessment

  • understand the legal requirement to report any accident or dangerous occurrence

  • develop risk assessments for scientific laborat
    Author(s): The Open University

    License information
    Related content

    Copyright © 2016 The Open University

Isothermes d'un corps pur : SF6
TP virtuel (réalisé avec SEMM Labs http://semmlabs.univ-lille1.fr/) permettant de relever les valeurs du volume de SF6 contenu dans une éprouvette en fonction de la pression pour différentes températures...
Author(s): Jean-Marie Blondeau

License information
Related content

Droits réservés aux auteurs.

What is a Blizzard?
This term gets tossed around at least once every winter for the big snowstorm of the season, and most of the time - it's WRONG!  Blizzards have a very specific, difficult set of criteria to meet before they can be categorized as this type of winter storm - and it has more to do with wind and visibility than snow. (01:55)
Author(s): No creator set

License information
Related content

Cogs v2
Cogs v2 - John Savage Keywords:UNSPECIFIED
Author(s): No creator set

License information
Related content