Students Tout Campus Greenness in National Video Competition

submitted by: ucsandiego

Think UC San Diego has one of the coolest sustainability programs around? Now there’s a way to let everyone know. The campus is talking part in the nationwide Chill Out competition organized by the National Wildlife Federation.

Foundations for Bayesian Updating

submitted by: dougramsey
We provide a simple characterization of updating rules that can be rationalized as Bayesian. Namely, we consider a general setting in which an agent observes finite sequences of signals and reports probabilistic predictions on the underlying state of the world. We study when such predictions are consistent with Bayesian updating, i.e., when does there exist some theory about the signal generation process that would be consistent with the agent behaving as a Bayesian updater. We show that the...

The Importance of Marine Picoeukaryotes and the Search for Lost Time

submitted by: dougramsey
Unicellular eukaryotes are responsible for a massive amount of photosynthetic carbon fixation in marine systems. The smallest among these fall within the “pico” size fraction (<2 micrometers in diameter), are broadly distributed – from coastal to open-ocean environments – and are highly diverse. Picoeukaryotes contribute a significant proportion of the biomass and primary production within this size fraction, often rivaling their cyanobacterial counterparts Prochlorococcus and...

Deep-Ocean Metagenomics: Comparative Investigations of Microbes Inhabiting Hydrothermal Vents and the Cold Deep Ocean

submitted by: dougramsey
The deep-ocean accounts for the majority of the water on our planet. While the cold deep-ocean is the dominant nutrient-challenged ecosystem, hydrothermal vents represent oases along tectonically active areas of the seafloor. Hydrothermal vents and the surrounding cold deep-ocean each support unique communities of microbes and viruses that have become highly adapted to local conditions. Through cycles of infection and host cell lysis, bacteriophages (viruses that specifically infect...


submitted by: mcweadon

McWeadon Education Founder Professor Badrul Khan discusses Issues in e-learning online education distance education.

SDSU Geological Sciences Webinar - Kathleen R. Johnson

submitted by: tcarrasc
Reconstructing Asian Monsoon History from Chinese Speleothems; Kathleen R. Johnson, Department of Earth System Science, University of California, Irvine: While we know that modern anthropogenic climate change is superimposed upon significant natural climate variability, the instrumental record of climate is too short to capture the full range of this variability. In order to fully understand and predict future changes, therefore, high-resolution, welldated paleoclimate records are needed to...