San Diego Science Festival -- Lunch with a Laureate -- Dr. Mario Molina

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Nobel Laureate Dr. Mario Molina has a conversation with students of Lincoln High School

Carbonated Oceans

An overload of carbon dioxide is acidifying seawater, posing a subtle but profound threat to marine invertebrates.

San Diego Science Festival -- The First Three Weeks

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The first three weeks at the Festival

The Dynamic Bacterial Cell: Part 2: Escalating Infectious Disease Threat (39:37)

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Many antibiotics, which we have taken foregranted since the 1950's, are now becoming ineffective because bacteria have developed ways of acquiring resistance. The development of new antibiotics is lagging behind the loss of the old ones in this race to combat infectious disease. Simultaneously, there is an increase in infectious diseases around the world due to over population, globalization and urbanization. This results in a lethal combination of emerging diseases and loss of effective...

Technical Issues Associated with Future Large-Scale Cellulosic Biofuels Production: Part 2: Cellulosic Biofuels (48:15)

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In the second segment, the potential for various types of biofuels are compared and some of the technical challenges in production of cellulosic fuels are outlined.

Host-Pathogen Interaction and Human Disease: Part 2: Helicobacter pylori and Gastric Cancer (48:57)

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Helicobacter pylori lives in the human stomach. It causes gastritis, ulcer disease and even gastric cancer. Some H. pylori can inject a protein, CagA, into gastric epithelial cells. CagA interacts with the tight junctions that bind cells together and with signaling molecules affecting motility and proliferation. CagA is associated with ulcer disease and cancer but we don't understand how it works to favor malignancy. Not long ago in history most humans carried H. pylori ; the incidence of...