3,191 search results
Evolution through natural selection
Nature & Environment

Evolution through natural selection

...working on a wide variety of biological problems, as the rest of the world struggled to come to terms with the implications of evolution. [Figure 1] Figure 1 Charles Darwin (1809-1882) The word 'evolution' means 'change over time' and it can be used in relation to anything that has a history; thus, we could describe the evolution of the motor car or of parliamentary...
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Level 1: Introductory 4 hrs
Energy resources: solar energy
Nature & Environment

Energy resources: solar energy

...working PV cells in 1883, using selenium plates covered in gold wires, but they converted less than 1% of the incident solar energy into electricity. Since then PV technology has been mainly concerned with improving efficiency, so that today's solar cells convert up to 25% of incident solar power to electricity. In the 1950s the Bell Telephone Company's laboratory in New...
View course Energy resources: solar energy
Level 2: Intermediate 2 hrs
Infection and immunity
Health, Sports & Psychology

Infection and immunity

...Work Projects Administration Poster Collection, Library of Congress Figure 11b: © Everett Collection Historical/Alamy Figure 12: BBC News Magazine Every effort has been made to contact copyright owners. If any have been inadvertently overlooked, the publishers will be pleased to make the necessary arrangements at the first opportunity...Session 2: Scientific lessons from...
View course Infection and immunity
Level 1: Introductory 12 hrs
Straen a phryder yn yr oes ddigidol: Ochr dywyll technoleg
Health, Sports & Psychology

Straen a phryder yn yr oes ddigidol: Ochr dywyll technoleg

...Work life balance in Welsh] Yn y gorffennol roedd ffin glir rhwng pryd oedd bywyd gwaith yn dod i ben a bywyd gartref yn dechrau... nid yw’r ffin hon mor glir bellach. Mae’r mwyafrif ohonom ni’n cael e-byst gwaith ar ein ffonau, sy’n golygu ein bod ar gael drwy’r amser ac mae pobl yn gallu cysylltu â ni unrhyw bryd. Mae hyn yn ei gwneud yn anodd iawn i ni...
View article Straen a phryder yn yr oes ddigidol: Ochr dywyll technoleg
Article 10 mins
A Europe of the Regions?
Society, Politics & Law

A Europe of the Regions?

...work – it has worked so far in Belgium. Out-and-out separatists may reject it as a ‘sop’, but they may become politically isolated if others accept that ‘half a loaf is better than no bread’. Autonomists are placated while more ‘moderate’ separatists can present federalisation as a relative gain and a ‘stepping stone’ or stage on a road which promises...
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Level 2: Intermediate 8 hrs
Understanding systems thinking in practice (STiP)
Science, Maths & Technology

Understanding systems thinking in practice (STiP)

...working with uncertainty. The second condition relevant to strategy making is that of change. The interrelationships among variables and the quality and multitude of perspectives in any given situation as depicted in Figure 3 never stand still. Relationships between variables and the perspectives are in a constant state of flux. So how might systems thinking help make...
View course Understanding systems thinking in practice (STiP)
Level 3: Advanced 16 hrs
Children and violence: an introductory, international and interdisciplinary approach
Society, Politics & Law

Children and violence: an introductory, international and interdisciplinary approach

...work done by psychologists on violence and aggression in children, looking at whether this is part of a normal and natural developmental process or whether it is pathological. Cole and Cole define aggression as ‘an act in which someone intentionally hurts another’ (1996, p. 406). They then split this definition to look at instrumental aggression which is committed in...
View course Children and violence: an introductory, international and interdisciplinary approach
Level 2: Intermediate 20 hrs
A tour of the cell
Science, Maths & Technology

A tour of the cell

...work' is a knowledge of the subcellular components and how they are arranged. This is introduced through a series of in-text and self-assessment questions...This free course, A tour of the cell, contains a blend of text and a multimedia interactive component to look at the uniformity and diversity within cells. Fundamental to understanding how cells 'work' is a knowledge...
View course A tour of the cell
Level 2: Intermediate 12 hrs