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00:31:00

Minimizing a Bacterial Genome by Global Design and Synthesis

by Hamilton Smith
Minimizing a Bacterial Genome by Global Design and Synthesis
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 2140 views
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In 2010, we chemically synthesized the 1078 Kb Mycoplasma mycoides genome and transplanted it into a recipient cell cytoplasm to create a 'synthetic cell', JCVI-syn1.0 (Science, 329, 52-56, 2010). We identified several hundred non-essential genes by ....

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00:39:00

Role of Nitric Oxide and Cyclic GMP in Cell Signaling and Drug Development

by Ferid Murad
Role of Nitric Oxide and Cyclic GMP in Cell Signaling and Drug Development
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1778 views
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Nitric oxide research has grown rapidly with about 150,000 research publications describing its biological effects. It is an important messenger molecule that affects most tissues and biological processes. Many effects of nitric oxide are mediated by....

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00:31:00

The Adventure of Cold Atoms. From Optical Pumping to Quantum Gases

by Claude Cohen-Tannoudji
The Adventure of Cold Atoms. From Optical Pumping to Quantum Gases
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1328 views
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Conservation laws are very important in quantum physics. Two examples of applications will be given. First, optical pumping which uses transfer of angular momentum from polarized photons to atoms to produce highly polarized atomic gases. Then, laser ....

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00:33:00

What About Redefining Time Using a Stable Laser?

by John Hall
What About Redefining Time Using a Stable Laser?
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1385 views
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Several laser-based Atomic Clocks now have an accuracy potential of ~2 x10-18, a hundred-fold better than the best achieved after more than 60 years' experience with rf resonances in Cs atoms. Still, this long attention span documents that the Cs Fou....

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00:31:00

Where am I From? Where Are You Going?

by Ryoji Noyori
Where am I From? Where Are You Going?
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1363 views
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Scientific research is a never-ending 'journey of knowledge'. There is more meaning in experiencing various encounters and making a good journey itself than reaching the destination. Basic science has eternal cultural value; it has served to heighten....

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00:45:00

On the Genetic Basis of Morphological Evolution

by Christiane Nusslein-Volhard
On the Genetic Basis of Morphological Evolution
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1202 views
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Darwin's theory of evolution states that variation of the shape and pattern of the adults rather than the embryos are the basis for natural selection. In order to understand how morphological variation arises, it is important to identify the genes th....

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00:30:00

From the Structure of the Ribosome to the Design of New Antibiotics

by Thomas Steitz
From the Structure of the Ribosome to the Design of New Antibiotics
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1756 views
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Structural studies of the ribosome exemplify the evolution of structural studies in cell biology from the early negatively stained images of macromolecular assemblies in whole cells, to a detailed atomic understanding of the mechanism of action of a ....

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00:29:00

Protein Cross Talk in Cell Signaling

by Edmond Fischer
Protein Cross Talk in Cell Signaling
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1319 views
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The main focus of the talk will be on signaling by tyrosine phosphorylation, which has been directly implicated in the regulation of cell growth, differentiation and transformation. External signals coming in the form of mitogenic hormones and growt....

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00:41:00

Telomeres and Telomerase in Human Health and Disease

by Elizabeth Blackburn
Telomeres and Telomerase in Human Health and Disease
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 2849 views
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Telomeres are the protective tips that stabilize the ends of chromosomes. The function of telomeres is to allow cells to divide while holding the genetic material intact. Telomeres contain specialized, simple repetitive DNA sequences that, together....

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00:27:00

Which Way For Physics?

by Brian Josephson
Which Way For Physics?
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1102 views
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This talk describes a new approach to the problem of characterising physical reality, one with the potential to fill in gaps in the conventional understanding of nature. It is based on a different view from the usual one of structure at the finest l....

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00:37:00

Generating the Fuel of Life

by John Walker
Generating the Fuel of Life
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1372 views
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The lecture will be devoted to the topic of how the biological world supplies itself with energy to make biology work, and what medical consequences ensue when the energy supply chain in our bodies is damaged or defective. We derive our energy from ....

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00:42:00

Short-term Synaptic Plasticity

by Erwin Neher
Short-term Synaptic Plasticity
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 7514 views
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Our brain is a network of about 10^11 neurons, which are connected via synapses. A neuron typically receives input from about 10000 other neurons, which can be either excitatory or inhibitory. The neuron integrates these inputs and generates an actio....

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