Apicomplexan Parasites, Pathogen Genome Informatics, and the Evolution of Eukaryotic Organelles by David S. Roos, May 2008 - Part 1: How to build a parasite

submitted by: video_collector
There are more than 5000 species of single-celled eukaryotes in the biological phylum known as the Apicomplexa, including the parasites responsible for malaria, neurological birth defects, and opportunistic infections associated with HIV/AIDS. These ancient protozoa provide a unique window into the evolution of subcellular organelles that have long fascinated cell biologists. Familiar features help to elucidate the origins, functions and design parameters for the secretory pathway,...

Emergence of Azole Resistance in Aspergillus fumigatus and Spread of a Single Resistance Mechanism.

submitted by: nelleke
Background Resistance to triazoles was recently reported in Aspergillus fumigatus isolates cultured from patients with invasive aspergillosis. The prevalence of azole resistance in A. fumigatus is unknown. We investigated the prevalence and spread of azole resistance using our culture collection that contained A. fumigatus isolates collected between 1994 and 2007. Methods and Findings We investigated the prevalence of itraconazole (ITZ) resistance in 1,912 clinical A. fumigatus...
Authors: Eveline Snelders, Henrich a. l. van der Lee, Judith Kuijpers, Anthonius j. m. m. Rijs, János Varga, Robert a. Samson, Emilia Mellado, A. rogier t. Donders, Willem j. g. Melchers, Paul e. Verweij

Research on Aging: Successful Cognitive and Emotional Aging

submitted by: sjanderson

Successful cognitive and emotional aging with noted expert Dr. DilipJeste.

Successful Aging: The Buzz on Successful Aging

submitted by: sjanderson

What does it mean to age successfully? After all, aren’t we accomplishing this just by being alive? The term "successful aging" is vague and leaves much to the imagination. Yet, there is a growing interest in this topic. UCSD’s Stein Institute for Research on Aging has embarked on its own research project to discover the secrets to success. This presentation provides insights related to successful aging and discuss current research findings and proposed models.

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,...