3,725 search results

What is a virus?
Science, Maths & Technology

What is a virus?

...opens and releases its RNA genome, which is then used as a template to make more viral RNA and proteins. It has been found that cells involved in both the innate and adaptive immune systems can become rapidly depleted following SARS-CoV-2 infection, thereby severely compromising antiviral immunity. [Diagram of coronavirus structure] Figure 2. Diagram of coronavirus...
How the atmosphere sustains life on Earth
Science, Maths & Technology

How the atmosphere sustains life on Earth

...Open University's Science courses and qualifications Earth is a vibrant blue planet, the only place that we can be sure that life exists. As A Perfect Planet shows, a complex and interconnected set of systems operate to form our environment. Every planet except one in the Solar System has a gaseous atmosphere, as do some moons and even some dwarf planets. Why does the...
Multiple Moonlets Maketh Mystery
Science, Maths & Technology

Multiple Moonlets Maketh Mystery

...Open University research student Zoe Morland...The Moon is the most extensively studied planetary body outside of Earth. Despite this, its formation mechanism is still a mystery. Transcript Astronomy & Planetary Science The Formation of the Moon Zoe Morland: Have you wondered how the Moon was made? The Moon is the most extensively studied planetary body outside of Earth....
Cwestiynau Cyffredin am Gyfrifiannell Carbon Y Brifysgol Agored
Nature & Environment

Cwestiynau Cyffredin am Gyfrifiannell Carbon Y Brifysgol Agored

...Open’ I ddileu ffeil, dewiswch hi a dewiswch ‘Delete’. Pam nad yw'r gyfrifiannell yn gofyn am ddata go iawn? Bydd rhai cyfrifianellau'n gofyn i ddefnyddwyr am ‘ddata go iawn’, fel faint o nwy a thrydan y maent yn ei ddefnyddio bob blwyddyn, faint o filltiroedd y maent yn ei deithio mewn car, pa mor bell y maent yn hedfan ac ati. Fodd bynnag, mae llawer o...
How does the human body fight a viral infection?
Science, Maths & Technology

How does the human body fight a viral infection?

...Open University's Health Sciences qualification. The immune response to viral infection The immune response to a viral infection is primarily generated by a type of white blood cell called lymphocytes; cells that are mostly localised in ‘lymphoid tissues’ such as the lymph nodes or tonsils. However, the number of lymphocytes that can recognise and react against any...
Mathemateg bob dydd 2
Science, Maths & Technology

Mathemateg bob dydd 2

...Education 338, cangen addysgol The Exilarch’s Foundation. Ysgrifennwyd y cwrs hwn, sydd am ddim, gan Kerry Lloyd, Frances Hughes a Tracy Mitchell yng Ngholeg Cambria, mewn partneriaeth ag Addysg Oedolion Cymru, Coleg Gwent, Grŵp Coleg Castell-nedd Port Talbot a’r Brifysgol Agored, ac mewn cydweithrediad ag Joanne Davies, West Herts College, gan ddefnyddio deunyddiau...
Level 1: Introductory 48 hrs
Napoleonic paintings
History & The Arts

Napoleonic paintings

...open landscape appears very much as a flat backdrop. Despite its grim subject, the painting has a certain picturesque appeal, thanks to the exotic costumes, light tonality, vivid colours and loose handling of paint. Overall, it can be said that this work retains the ambitions of a history painting but breaks with the aesthetic and moral idealism traditionally expected of...
Level 2: Intermediate 16 hrs
Climate change
Nature & Environment

Climate change

...resources and qualifications by visiting The Open University - www.open.edu/ openlearn/ free-courses...Climate change: References - Edwards, P. N. and Schneider, S. H. (2001) Self-governance and peer review in science-for-policy: the case of the IPCC Second Assessment Report, in Miller, C. and Edwards, P. N. (eds) Changing the Atmosphere: Expert Knowledge and...
Level 2: Intermediate 18 hrs