52 results found for biology

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01:05:00

Genes, worms and the new genetics

by Julie Ahringer
Genes, worms and the new genetics
for 18-22 and upwards,
Lectures | 18-22 and upwards | 10 years ago | 1051 views
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A surprising finding over the past 20 years is that all animals have many of the same genes and that they use them in similar ways to grow and develop. These similarities mean that much of what is learned about what genes do in simple animals such as....

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01:13:00

Magnetic brain stimulation and brain function?

by Alan Cowey
Magnetic brain stimulation and brain function?
for 18-22 and upwards,
Lectures | 18-22 and upwards | 10 years ago | 831 views
Rating:

Like his nineteenth century contemporaries David Ferrier tried to reveal cerebral localisation of function by direct electrical stimulation of the exposed brain of animals. With some notable exceptions the results were disappointing and confined to t....

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01:08:00

Perception, deception and reality

by David Attenborough
Perception, deception and reality
for 18-22 and upwards,
Lectures | 18-22 and upwards | 10 years ago | 1332 views
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Sir David Attenborough delivers the 2003 Michael Faraday Lecture entitled: Perception, deception and reality

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01:15:00

Vision for knowledge: Knowledge for vision

by Richard Gregory
Vision for knowledge: Knowledge for vision
for 18-22 and upwards,
Lectures | 18-22 and upwards | 10 years ago | 877 views
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An evolutionary development of perception is suggested - from passive reception to active perception to explicit conception - earlier stages being largely retained and incorporated in later species. A key is innate and then individually learned knowl....

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01:00:00

Science not stamp collecting? Botany from 1759 to 2059

by Stephen Hopper
Science not stamp collecting? Botany from 1759 to 2059
for 18-22 and upwards,
Lectures | 18-22 and upwards | 10 years ago | 923 views
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Professor Hopper considers the vital role that the study of plant taxonomy and systematics has played in plant science. He considers, in particular, how these fields are transforming to meet the needs of 21st Century science as we address the challen....

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01:04:00

The origins of flowers

by Peter Crane
The origins of flowers
for 14-19 and upwards,
Lectures | 14-19 and upwards | 10 years ago | 802 views
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Flowers are such a ubiquitous and familiar part of our modern world that it is easy to take them for granted. But as Darwin recognized, the exquisite details of their structure and appearance have been shaped by evolutionary processes over millions o....

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01:01:00

Is the Great Barrier Reef on Death Row?

by Charlie Veron
Is the Great Barrier Reef on Death Row?
for 14-19 and upwards,
Lectures | 14-19 and upwards | 10 years ago | 1191 views
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Professor J.E.N Veron, the former Chief Scientist of the Australian Institute of Marine Science and widely regarded as the world's leading authority on coral reef ecosystems, presents the effects that climate change is having on coral reefs.

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01:23:00

We are what we remember.

by Eric Kandel
We are what we remember.
for 18-22 and upwards,
Lectures | 18-22 and upwards | 10 years ago | 829 views
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n this lecture, Eric R Kandel considers the neural systems and molecular mechanisms that contribute to learning and long-term memory and discusses how our insights into memory storage are allowing us to understand various forms of age related memory ....

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00:33:00

Deep sea discoveries

by Jason Hall-Spencer
Deep sea discoveries
for 14-19 and upwards,
Lectures | 14-19 and upwards | 10 years ago | 2092 views
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Recent underwater images show that the deep sea realm of the British Isles is nothing like the monotonous expanse of mud that many people imagine. Spectacular coral reefs, once thought to be restricted to the tropics, are now known to occur in the ch....

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01:02:00

Reprogramming the code of life

by Jason Chin
Reprogramming the code of life
for 18-22 and upwards,
Lectures | 18-22 and upwards | 10 years ago | 982 views
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The information for synthesizing the molecules that allow organisms to survive and replicate is encoded in genomic DNA. In the cell, DNA is copied to messenger RNA, and triplet codons in the messenger RNA are decoded in the process of translation to ....

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01:00:00

The new biology of ageing

by Linda Partridge
The new biology of ageing
for 18-22 and upwards,
Lectures | 18-22 and upwards | 10 years ago | 803 views
Rating:

Research into ageing has been rejuvenated by the discovery of mutations in single genes that extend the lifespan of laboratory animals. Some of the signalling pathways involved, particularly the insulin/Igf-like pathway, have effects on lifespan acro....

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01:16:00

A molecular window into speech and language

by Simon Fisher
A molecular window into speech and language
for 18-22 and upwards,
Lectures | 18-22 and upwards | 10 years ago | 1230 views
Rating:

Our capacity for complex speech and language remains one of the most intriguing aspects of being human. It has long been suspected that some answers to this enigma will be found buried within the genome. With recent advances in genetic technologies, ....

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