Multiple nations and private entities are pushing to make landing humans on Mars a reality. The majority of proposed mission architectures envision ‘living off the land’ by leveraging Martian water-ice deposits for fuel production and other purposes. F
current understanding of mineral solubility predicts negligible phosphate concentrations for most natural waters, yet the role of Fe2+, ubiquitous on early Earth, is poorly quantified. Here we determine the solubility of Fe
After the deleterious effects of the direct meteorite impact, any microorganisms on Mars would have benefited from the input of heat, the mobilization of a possible frozen groundwater system, as well as increased translucency, porosity, and trace nutrient availability of the target substrate.Gordon ...
Satellite-Based Derivation of High-Resolution Forest Information Layers for Operational Forest Management A key factor for operational forest management and forest monitoring is the availability of up-to-date spatial information on the state of forest resources... J Stoffels,J Hill,T Sachtleber,......
With the growing awareness of environmental issues available across various media platforms, consumers, particularly the younger generation, are more conscious of their consumption and its impact on the environment. This trend can be observed in the surg
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Predicting particle selection by deposit feeders: A model and its implications1 A feeding model for a generalized, benthic deposit feeder is derived from a filter-feeding model and used to predict how such a deposit feeder would adjust... TAGHON, GARY L.,SELF, ROBERT F. L.,JUMARS, PETER...
Reports on a scarcity of turf seeds in the United States in autumn 1996. Chart tabulating the availability of seeds of Kentucky bluegrass; Perennial ryegrasses; Turf-type tall fescue; Fine fescues; Bentgrass; Other seeded cultivars. INSET: Turf for low maintenance: Prof's calculations say so.....
Kelley KD, Leach DL, Johnson CA, Clark JL, Fayek M, Slack JF, Anderson VM, Ayuso RA, Ridley WI (2004) Textural, Compositional, and Sulfur Isotope Variations of Sulfide Minerals in the Red Dog Zn-Pb-Ag Deposits, Brooks Range, Alaska: Implications for Ore Formation. Econ Geol 99:1509–...
This may be based upon competition between Si and P for binding sites on soil particles and subsequent increase of P in pore water and plant tissue of +Si treatments with highly solu- ble Si36 (see supplementary information of Seyfferth & Fendorf, 2012). In our study leaf blades ...