Not exact matches
Because Scarab isn't meant to return home, it will have to analyze
soil itself;
samples are fed
into its reactor, where they are cooked and analyzed for makeup and concentrations.
Following an expected soft landing in the northern polar region, Phoenix will study the planet's ice cap and use a robotic arm to dig
into the Martian subsurface, collecting ice and
soil samples.
If scientists can collect and analyze
samples of the terrestrial oxygen embedded in lunar
soil, it could provide insights
into how Earth's atmosphere has evolved over the eons.
For instance, on one day that hay was cut — two weeks after a major rainfall that shunted diluted manure
into the field — only four of 10 tested
soil samples hosted Escherichia coli O157.
He and his colleagues drove mining vehicles
into the desert to collect
soil samples just a few weeks after the storm, and then returned again in 2016 and 2017 to track changes as the moisture dissipated.
In order to characterize the biological properties of
soil treated with biochar, the team incorporated torrefied plant residual biomass from the biodiesel crop Jatropha curcas
into aridisol, a type of
soil found in arid regions such as Botswana, and compared several
soil properties with
samples that had not been treated.
The students went around Bangalore and
into the forests of the state of Karnataka, brought
soil samples and looked for BioBrick - specific DNA sequences in the
soil microbes.
Topp's research team ultimately
sampled soil from the plots, extracting DNA, and cloning large fragments of that DNA
into a strain of E. coli that is sensitive to most antibiotics.
Over the weekend, Phoenix scooped up a shovel - full of ruddy dirt using its 7.7 - foot (2.4 - meter) robotic arm to deposit
into its Thermal and Evolved - Gas Analyzer, a suite of tiny, single - use ovens for baking
soil and ice
samples to study their chemistry.
Using bioinformatics, the computer wades through the information to give us a full complex of what's in that
sample — whether it be invertebrates, fish, reptiles, amphibians, birds — anything that may be coming
into contact with the water or
soil.
What's more, the Rover dug
into the
soils at Rocknest to provide scientists with the opportunity to
sample the newly unearthed portion over the course of several Martian days.
When it comes to testing anything solid, such as food or
soil,
samples need to be processed
into a liquid form.
Warming may push carbon more deeply
into the
soil The researchers collected
samples dating back to 1989 from greenhouses at the Arctic Long - Term Ecological Research site, the longest - running whole system tundra warming experiment.
If a
soil sample contains bacterial genes that produce enzymes used to convert carbon dioxide from the atmosphere
into solid carbon, and these genes are active, researchers can conclude that microbes within the
sample are actively storing carbon.
But in the freezing and thawing
soil layer, sequencing showed that bacteria within the
soil samples were producing some intriguing proteins, including enzymes that snip long chains of carbon molecules, like cellulose from plants,
into shorter, simpler sugar compounds that the bacteria can use as fuel.
Later, as a young microbial ecologist at Stockholm University in Sweden, she started to catalog the microorganisms she collected during
soil sampling trips, deciphering their genetic code so she could understand both their internal workings and how they fit
into their underground habitat.
The JCVI teams are focused on a variety of genomic research areas including continued work in synthetic biology;
sampling and analysis of the world's oceans, fresh water and
soils to better understand the microbes living in these environments; and new analysis on the human genome in the hopes of discovering new insights
into disease prevention and treatment.
In the LR experiment, a drop of very dilute aqueous nutrient solution was dropped
into a
sample collected of Martian
soil.
The models the research team used took
into consideration various climate data, land use,
soil samples, the growth of different crops, irrigation systems, population densities and industries.