How to Use Portable Steam Collector

submitted by: drscottkelley

This video shows a demonstration of how to use a custom made steam collector designed to condense steam from geothermal vents (aka., fumaroles). This device was used used to collect samples of halophilic Archaea from fumaroles around the world, work which was published in:

Ellis, D., R.W. Bizzoco, and S.T. Kelley. (2008) Halophilic Archaea identified in fumarole steam vapor from vents around the world. Environmental Microbiology, 10: 1582-1590.

A Sea Biscuit's Life

submitted by: nelas
This video shows the life cycle of the sea biscuit Clypeaster subdepressus and is part of my master's thesis project at the Biosciences Institute of University of São Paulo. We collected adults from sand beds of São Sebastião Channel (São Sebastião, SP, Brazil) and induced gamete release (eggs and sperm). We did the fertilization in vitro and followed the embryonic development in the laboratory, under light microscopy. Embryos become swimming larvae, approximately 0.2 mm wide,...

SDSU Geological Sciences - Seminar - J. Fred Bair

submitted by: tcarrasc
Development Geology of the Antelope Shale: Section 1Y, Cymric Field, San Joaquin Valley, California - The Antelope Shale reservoir in Section 1Y, Cymric Field, San Joaquin Valley, California is one of Chevron’s key assets. The reservoir is a Miocene Age member of the Monterey Formation composed of Opal A (amorphous), Opal CT (cristobalite, tridimite) and Quartz phase diatomaceous deep water sediments. The Antelope Shale has an anomalously high average porosity of 58%, high initial oil...

Layer-by-Layer culturing of neuronal network

submitted by: andrewsun

Supplement information of Nature Methods 2008, 5, 735. Neuronal networks is cultured by layer-by-layer assembly of neuron-attached colloids. The resulting neuronal network is able to react to light stimuli.

Pterygoneurum lamellatum with Crossidioid photosynthetic enations

submitted by: rzander

Pterygoneurum lamellatum is a western and High Arctic moss in North America that has two kinds of photosynthetic enations on the adaxial (ventral) surface of the costa (midrib), the usual lamellae of Pterygoneurum and in this particular specimen from Alaska the (short) filaments of Crossidium.

Modeling Fragmentation Patterns of ECD/ETD Mass Spectrometers

submitted by: patel.anandd

Mass spectrometers are sophisticated instruments that detect the mass of ionized molecules, which is useful in the field of chemistry and most recently proteomics. Newer spectrometers ionize and fragment molecules with different specificity and resolution, which requires understanding and applying these newer fragmentation patterns to current peptide sequencing algorithms like InsPect.