52 results found for biology

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01:00:00

The great ideas of biology

by Paul Nurse
The great ideas of biology
for 14-19 and upwards,
Lectures | 14-19 and upwards | 14 years ago | 1560 views
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Three of the ideas of biology are the gene theory, the theory of evolution by natural selection and the proposal that the cell is the fundamental unit of all life. A fourth idea is that the organization of chemistry within the cell provides explanati....

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01:00:00

Plasticity of the brain: the key to human development.

by Colin Blakemore
Plasticity of the brain: the key to human development.
for 14-19 and upwards,
Lectures | 14-19 and upwards | 14 years ago | 1416 views
Rating:

How do our genes program the complexity of our brains? Why is human culture so much richer than that of the Great Apes? And how has human cognitive achievement continued to accelerate, when our genetic makeup has changed very little over the past 100....

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01:02:00

Thinking like a vegetable: how plants decide what to do

by Ottoline Leyser
Thinking like a vegetable: how plants decide what to do
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1311 views
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Plants monitor a wide range of information from their surrounding environment. They combine information of multiple sorts, and respond in an appropriate way. In plants there is no brain, and the information processing is distributed across the plant ....

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01:12:00

Brain development and brain repair.

by Marc Tessier-Lavigne
Brain development and brain repair.
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1478 views
Rating:

The human brain is made up of close to a trillion nerve cells (or neurons), each of which makes connections with, on average, hundreds of other nerve cells, to form the complex neuronal circuits that control all brain activities, including perception....

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01:08:00

Engineered zinc finger proteins and gene expression

by Aaron Klug
Engineered zinc finger proteins and gene expression
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1894 views
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It has long been the goal of molecular biologists to design DNA binding proteins for the specific control of gene expression. The zinc finger design, discovered by Sir Aaron Klug 20 years ago, is ideally suited for such purposes, discriminating betwe....

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01:12:00

Deciphering disease: cells and disruption of their communication

by Dario Alessi
Deciphering disease: cells and disruption of their communication
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1398 views
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The human body may seem to be no more than a bundle of tissues and organs, yet the cells these are made from are capable of interacting, communicating and performing complex tasks. Our cells' capacity to interact in this way enables humans to adapt t....

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00:58:00

Stem Cells to Synapses

by Andrea Brand
Stem Cells to Synapses
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1446 views
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One of the goals of research in neurobiology is the repair and regeneration of neurons after damage to the brain or spinal cord. Before we can understand how to repair the nervous system we must first learn how the nervous system is put together.

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01:03:00

Structure and the living cell

by Iain Campbell
Structure and the living cell
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1371 views
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In this lecture Iain Campbell will discuss methods of studying the structure of molecules and cells and how they have advanced in the 350 years since early microscopes gave the first glimpse of single cells. He will show how modern methods are allowi....

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01:05:00

Microscopy goes cold: secrets of frozen viruses

by Tony Crowther
Microscopy goes cold: secrets of frozen viruses
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1476 views
Rating:

Viruses are a major cause of death and disease. Too small to be seen by light microscopy, they were first visualised about 50 years ago by electron microscopy. Dr. Crowther describes his work on the development of the methods and illustrates how he h....

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01:08:00

The Puppet Master: How the brain controls the body

by Daniel Wolpert
The Puppet Master: How the brain controls the body
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1694 views
Rating:

The effortless ease with which humans move our arms, our eyes, even our lips when we speak masks the true complexity of the control processes involved. Professor Daniel Wolpert explains how the brain deals with this and can perform optimally in the p....

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01:19:00

Beyond the human genome project

by Eric Lander
Beyond the human genome project
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1938 views
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Dr Lander and his colleagues have developed many of the key tools and generated many of the key information resources for modern mammalian genomics. Their work includes mapping and sequencing of the human, mouse, and other genomes. He was elected a m....

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01:09:00

Adventures in vascular biology

by Salvador Moncada
Adventures in vascular biology
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1466 views
Rating:

Thirty years ago it was thought that the endothelium, a layer of thin, flat cells that line the interior surface of blood vessels was inert. However, major discoveries since then have demonstrated that it is a highly metabolic organ involved in maint....

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