33 results found for environment

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00:31:00

The Origins of Cellular Life

by Jack Szostak
The Origins of Cellular Life
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1612 views
Rating:

The complexity of modern biological life has long made it difficult to understand how life could emerge spontaneously from the chemistry of the early earth. We are attempting to synthesize simple artificial cells in order to discover plausible pathwa....

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00:29:00

From Proto-oncogenes to Precision Oncology

by Harold Varmus
From Proto-oncogenes to Precision Oncology
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1814 views
Rating:

The diagnosis, classification, and treatment of human cancers are being transformed by scientific discoveries that were strongly influenced by the discovery of the c-src proto-oncogene, as described in the lecture by Michael Bishop. The path to this ....

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00:05:00

Fuel Cells – Main Aspects

by Alfonso Felipe
Fuel Cells – Main Aspects
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1397 views
Rating:

Fundamental aspects and properties of fuel cells in the environment of renewables.

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00:32:00

Cultural Values of Scientific Knowledge

by Werner Arber
Cultural Values of Scientific Knowledge
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 2868 views
Rating:

The acquisition of scientific knowledge largely depends on the availability of appropriate research approaches and methodologies. Novel scientific knowledge represents cultural values. On the one hand, it enriches our world-view with impacts on our....

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00:31:00

The Future of Life

by Christian de Duve
The Future of Life
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1349 views
Rating:

Ever since its first appearance, more than 3.5 billion years ago, life has evolved without guiding plan, propelled by: 1) its own intrinsic properties, which, with the help of outside energy, provided the necessary driving force; 2) accidental geneti....

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00:35:00

Updated Notions on Darwinian Evolution

by Werner Arber
Updated Notions on Darwinian Evolution
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1408 views
Rating:

Charles Darwin had based his theory of biological evolution on the observation that phenotypic variants of a given species can sometimes over-grow their parental population, and he attributed this to selective advantage, i.e., to the impact of natura....

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00:41:00

Climbing the Everest Beyond the Everest

by Ada Yonath
Climbing the Everest Beyond the Everest
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1724 views
Rating:

The challenges associated with pursuing ribosomal crystallography can be described as a series of Everest climbing. At each step, when reaching the summit, a taller and more difficult one became exposed. Snapshots of this story will be described.__....

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00:31:00

Biological Evolution in the Context of Cosmic Evolution and of Cultural Evolution

by Werner Arber
Biological Evolution in the Context of Cosmic Evolution and of Cultural Evolution
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1589 views
Rating:

After reconsidering the very long time periods in cosmic evolution, we will focus our attention to the evolutionary development of living organisms on our planet Earth. The genetic variants (mutations), which are occasionally produced, are alteratio....

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00:32:00

Man vs. Helicobacter _ The past 50,000 years and the next 50

by Barry Marshall
Man vs. Helicobacter _ The past 50,000 years and the next 50
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1622 views
Rating:

The epidemiology of Helicobacter pylori continues to be an area of discovery and controversy in the 21st century. The transmission of this bacterium from mother to child allows Helicobacter DNA to mimic the evolution of maternal mitochondria DNA. B....

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00:39:00

Molecular Catalysis for Green Chemistry

by Ryoji Noyori
Molecular Catalysis for Green Chemistry
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1355 views
Rating:

Science is inevitably intertwined with society.  The state of the art of science, coupled with industrial endeavors, has determined our quality of life.  Chemists are proud of their ability to generate high value from almost nothing by using accumu....

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00:28:00

Canoeing in the Arctic, a Scientist’s Perspective

by Peter Agre
Canoeing in the Arctic, a Scientist’s Perspective
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1587 views
Rating:

As scientists, our livelihoods are supported by teaching and research, but we also have the opportunity to make observations beyond our usual confines and share these with non-scientific citizens. Growing up in my native state of Minnesota, I have al....

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00:31:00

Chemistry: the Key to Our Future

by Ryoji Noyori
Chemistry: the Key to Our Future
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1386 views
Rating:

Chemistry is not merely a science of making observations in order to better understand Nature. Our science is creative and productive, generating substances of very high value from almost nothing. Chemists already have made enormous contribution to....

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00:34:00

The Science and Policy of Climate Change

by Mario Molina
The Science and Policy of Climate Change
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 935 views
Rating:

Climate change is the most serious environmental challenge facing society in the 21st century.  The basic science is clear: the International Panel on Climate Change concluded that there is more than 90% probability that human activities are causing....

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00:29:00

The Ubiquitin Proteolytic System as a Novel Drug Development Platform

by Aaron Ciechanover
The Ubiquitin Proteolytic System as a Novel Drug Development Platform
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1689 views
Rating:

Between the 50s and 80s, most studies in biomedicine focused on the central dogma - the translation of the information coded by DNA to RNA and proteins.  Protein degradation was a neglected area, considered to be a non-specific, dead-end process.  ....

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00:30:00

Catalysis at Surfaces: From Atoms to Complexity

by Gerhard Ertl
Catalysis at Surfaces: From Atoms to Complexity
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1436 views
Rating:

Catalysis by solid surfaces is, among others, of importance for the chemical industry (e.g. the Haber-Bosch process) as well as for environmental chemistry (car exhaust catalyst).  Surface physical techniques enable investigation of the underlying e....

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00:31:00

Green Chemistry and Catalysis

by Robert Grubbs
Green Chemistry and Catalysis
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1196 views
Rating:

Much of the chemical industry is based on processes that were developed decades ago.  The change in the cost of petroleum carbon and energy sources and the need to control emissions of carbon dioxide and other pollutants will change the rules of the....

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00:38:00

Cultural Values of Scientific Knowledge

by Werner Arber
Cultural Values of Scientific Knowledge
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1456 views
Rating:

The acquisition of scientific knowledge largely depends on the availability of appropriate research approaches and methodologies.  Novel scientific knowledge represents cultural values.  On the one hand, it enriches our world-view with impacts on o....

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00:31:00

Controlling Photons in a Box and Exploring the Quantum to Classical Boundary

by Serge Haroche
Controlling Photons in a Box and Exploring the Quantum to Classical Boundary
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1715 views
Rating:

The founders of quantum theory assumed in 'thought experiments' that they were manipulating isolated quantum systems, obeying the counterintuitive laws which they had just discovered.  Technological advances have recently turned these virtual experi....

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00:50:00

Epigenetics, Diet and Cancer Prevention

by Roderick Dashwood
Epigenetics, Diet and Cancer Prevention
for 18-22 and upwards,
Lectures | 18-22 and upwards | 10 years ago | 1445 views
Rating:

How genes can be switched on and off by environmental effects and how this affects the development of cancers.

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00:22:00

Direct Visualisation of Soil Processes

by Menoj Manon
Direct Visualisation of Soil Processes
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1811 views
Rating:

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00:31:00

Urban River Corridors

by David Lerner
Urban River Corridors
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1427 views
Rating:

Can we achieve all of our  social, economic and environmental goals in urban river corridors?

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00:20:00

Emotions and expertise in environmental policy work

by Guillaumette Haughton
Emotions and expertise in environmental policy work
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1200 views
Rating:

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00:42:00

People, Pollution and Plumbing

by Liz Sharp
People, Pollution and Plumbing
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1468 views
Rating:

Science for the new water management: people, pollution and plumbing

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00:01:00

Rivers of pleasure

by Various Presenters
Rivers of pleasure
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 11 years ago | 2036 views
Rating:

Developing river environments for social use

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00:03:00

Bugs and trash

by Various Presenters
Bugs and trash
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 2091 views
Rating:

Using microorganisms to clear pollution.

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00:05:00

Anti-Body Coated Magnetic Nanoparticles

by Philip Schlenoff
Anti-Body Coated Magnetic Nanoparticles
for 18-22 and upwards,
Lectures | 18-22 and upwards | 13 years ago | 2102 views
Rating:

Philip Shlenoff, recent high school graduate, gives a presentation of his work and opportunity at the Florida State University Dept. of Chemistry. Under the supervision of Zaki Estephan, Philip has actively participated in research that targets canc....

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00:10:00

Feasibility of Zero-Energy Housing in Florida

by Ryan Aughtry
Feasibility of Zero-Energy Housing in Florida
for 18-22 and upwards,
Undergraduate presentations | 18-22 and upwards | 13 years ago | 1762 views
Rating:

This presentation is a brief overview of the possible ways to achieve a zero net energy consumption for a typical Florida house. Examples include photo-voltaics and wind-turbines. An emphasis on the economic aspects of being "off-the-grid".

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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 | 1310 views
Rating:

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

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
Rating:

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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01:05:00

Climate change on the living Earth

by James Lovelock
Climate change on the living Earth
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1714 views
Rating:

Observations from around the Earth suggest that even the gloomiest predictions of climate change from the 2007 IPCC report may underestimate the seriousness of the changes due this century. In this lecture, Professor James Lovelock discusses the cons....

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01:30:00

Behaving badly

by Uta Frith
Behaving badly
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1526 views
Rating:

Are environment, or genetics, more to blame when a human being turns to a life of crime? What does it mean to be criminally insane? And how effectively can a criminal tendency be treated with drugs? What different lights can literature and science sh....

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00:07:00

A nano-sized gas sensor 6

by Marc Delgado
A nano-sized gas sensor 6
for 18-22 and upwards,
Lectures | 18-22 and upwards | 15 years ago | 2230 views
Rating:

Sensotran are the industrial partner in the nano2hybrids project. A small family firm based just outside Barcelona in Spain, they are experts in commercial production of gas sensors for a range of industries, notably for detecting dangerous gases pro....

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00:16:00

Martinus J.F. Veltman

by Martinus Veltman
Martinus J.F. Veltman
for 18-22 and upwards,
Interviews | 18-22 and upwards | 15 years ago | 1550 views
Rating:

Martinus J.F. Veltman, the Netherlands shared the Nobel Prize in Physics in 1999 with Gerardus 't Hooft the Netherlands 'for elucidating the quantum structure of electroweak interactions in physics'. Not all areas of Holland were very advanced when V....

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