24368 results
Event
The water oxidation enzyme in the photosystem is largely responsible for converting solar energy into the high-energy chemical compounds needed to sustain life on the planet, and which have accumulated in the form of fossil fuels. This enzyme also …
11:00 to 12:00
Event
This first lecture on molecular oxygen has laid a number of chemical foundations for the study of oxygen reactivity in biological systems. Oxygen arrived on earth in a way by accident, being the product of photosynthesis, which uses water as an electron …
10:00 to 11:00
Event
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10:00 to 11:00
Serge Haroche
Modification of the spectrum of the environment: cavity quantum electrodynamics
Serge Haroche
Modification of the spectrum of the environment: cavity quantum electrodynamics
Lecture
Event
The third lesson showed how the decoherence of a physical system can be affected by altering the spectrum of its environment or the symmetry of its coupling with that environment. The situation considered was that of cavity quantum electrodynamics, a …
09:30 to 10:30
Event
11:00 to 12:00
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Abstract The first lesson began with a discussion of the physical limits of information-processing machines. We know that the problem of the efficiency of thermal machines led, following the pioneering work of Sadi Carnot, to the development of …
09:30 to 10:30
Event
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11:00 to 12:00
Saul Olyan
Disability in the prophetic utopian vision
Saul Olyan
Disability in the prophetic utopian vision
Guest lecturer
Event
Utopian prophetic visions, products of Judah's exile to Babylon in the 2nd century B.C., describe a set of model relationships and conditions, and thus provide a glimpse of the ideal world according to the authors of these ancient texts. Although some …
15:00 to 16:00
Event
The second lesson, covering the second and third chapters, began by presenting a simple classification of the different types of decoherence and the means of correcting or controlling them. First, we described "classical" decoherence, produced by …
09:30 to 10:30
Event
Following the appearance of oxygen, which led to the precipitation of iron hydroxides that had become ferric and therefore insoluble, microorganisms developed an efficient strategy for acquiring the iron they needed to grow. This evolutionary response …
11:00 to 12:00
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10:00 to 11:00
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Metal ions need to be recovered from the environment, where they accumulate, by cells. Current research in this field is very actively concerned with the questions of how a given metal ion is solubilized, how it crosses membranes, accesses the right …
10:00 to 11:00
Event
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14:30 to 15:30
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11:00 to 12:00
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17:30 to 18:30
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11:15 to 12:15
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11:00 to 12:00