ADVERTISEMENT

404

Not Found

Is this what you were looking for?

tag nasa developmental biology ecology

The Ecology of Tumors
Paraic A. Kenny, Celeste M. Nelson, and Mina J. Bissell | Apr 1, 2006 | 10+ min read
FEATUREThe Ecology of Tumors   Courtesy of Nasa Ames Research CenterBy perturbing the microenvironment, wounds and infection may be key to tumor development.BY PARAIC A. KENNY, CELESTE M. NELSON, AND MINA J. BISSELLNo tumor is an island. Chemical and physical forces exerted by the diverse cellular populations that surround a tumor - its so-called microenvironment - shape development and progression. Manipulating these 'ecologi
Opinion: Torments of tagging
Timothy Bean | Feb 2, 2011 | 3 min read
Is marking the wild animals we study skewing our results? And if so, what can we do about it?
Close up photo of a wing
Unearthing the Evolutionary Origins of Insect Wings
Jef Akst | Apr 4, 2022 | 6 min read
A handful of new studies moves the needle toward a consensus on the long-disputed question of whether insect wings evolved from legs or from the body wall, but the devil is in the details.
snails and algae on a rock
Warm-Water Species Remain 5 Years Post-Heatwave
Erica Nielsen and Sam Walkes | Oct 7, 2021 | 4 min read
Five years after largest marine heatwave on record hit northern California coast, many warm-water species have stuck around.
Inventory of Life
Ricki Lewis | Jul 22, 2001 | 8 min read
The idea sounds audacious: catalog all life on Earth within 25 years, a human generation. The All-Species Inventory hopes to do just that, with private funds and the help of a worldwide network of scientists and nature lovers. "It is a dream, but a neat one," says A. Townsend Peterson, curator of ornithology at the natural history museum and associate professor of ecology and evolutionary biology at the University of Kansas, Lawrence. He is one of 40 scientific advisers to the All-Species effort
An illustration of green bacteria floating above neutral-colored intestinal villi
The Inside Guide: The Gut Microbiome’s Role in Host Evolution
Catherine Offord | Jul 1, 2021 | 10+ min read
Bacteria that live in the digestive tracts of animals may influence the adaptive trajectories of their hosts.
So They Say
The Scientist Staff | Jan 11, 1987 | 8 min read
Verbatim excerpts from the media on the conduct of science. Underwriting Science "I think it's probably true that we've been living off the investments we made in technology years ago," says Sally Ride, the young astronaut who became highly visible in the agency's [NASA's] management after serving as a member of the Rogers Commission. "We've recognized this in the last year, and realized the need for NASA to start investing again in basic R&D…." Other observers wonder whether Star Wars wil
A scanning electron micrograph of a coculture of E. coli and Acinetobacter baylyi. Nanotubes can be seen extending from the E. coli.
What’s the Deal with Bacterial Nanotubes?
Sruthi S. Balakrishnan | Jun 1, 2021 | 10+ min read
Several labs have reported the formation of bacterial nanotubes under different, often contrasting conditions. What are these structures and why are they so hard to reproduce?
Surpassing the Law of Averages
Jeffrey M. Perkel | Sep 1, 2009 | 7 min read
By Jeffrey M. Perkel Surpassing the Law of Averages How to expose the behaviors of genes, RNA, proteins, and metabolites in single cells. By necessity or convenience, almost everything we know about biochemistry and molecular biology derives from bulk behavior: From gene regulation to Michaelis-Menten kinetics, we understand biology in terms of what the “average” cell in a population does. But, as Jonathan Weissman of the University of Califo
How Interconnected Is Life in the Ocean?
Catherine Offord | Nov 1, 2019 | 10+ min read
To help create better conservation and management plans, researchers are measuring how marine organisms move between habitats and populations.

Run a Search

ADVERTISEMENT