Results 81 to 90 of about 13,992,929 (227)

Groundwork for Life Detection [PDF]

open access: yesBulletin of the AAS, 2021
Tori Hoehler   +19 more
openaire   +1 more source

Biophotonics: a marriage of sciences [PDF]

open access: yes, 2002
Biophotonics denotes a combination of biology and photonics, with photonics being the science and technology of generation, manipulation, and detection of photons, quantum units of light.
Girkin, J.M.
core  

Lipopolysaccharide Detection across the Kingdoms of Life [PDF]

open access: yesTrends in Immunology, 2017
Studies in recent years have uncovered a diverse set of eukaryotic receptors that recognize lipopolysaccharide (LPS), the major outer-membrane component of Gram-negative bacteria. Indeed, Toll-like receptors, G-protein-coupled receptors, integrins, receptor-like kinases, and caspases have emerged as important LPS-interacting proteins.
openaire   +2 more sources

Life-Detection Technologies for the Next Two Decades

open access: yes, 2018
Since its inception six decades ago, astrobiology has diversified immensely to encompass several scientific questions including the origin and evolution of Terran life, the organic chemical composition of extraterrestrial objects, and the concept of ...
Bodas, Dhananjay   +22 more
core  

An exploration of origin of life for exoplanetary science

open access: yesFrontiers in Astronomy and Space Sciences
The factors that enable life to begin define the difference between an inhabited planet and one that is simply habitable. While used extensively in Origins, Worlds, and Life: A Decadal Strategy for Planetary Science and Astrobiology 2023–2032 ...
Finnegan Keller   +5 more
doaj   +1 more source

Determination of Geochemical Bio-Signatures in Mars-Like Basaltic Environments

open access: yesFrontiers in Microbiology, 2017
Bio-signatures play a central role in determining whether life existed on early Mars. Using a terrestrial basalt as a compositional analog for the martian surface, we applied a combination of experimental microbiology and thermochemical modeling ...
Karen Olsson-Francis   +4 more
doaj   +1 more source

UV Irradiation and Near Infrared Characterization of Laboratory Mars Soil Analog Samples

open access: yesFrontiers in Astronomy and Space Sciences, 2020
The search for molecular biosignatures at the surface of Mars is complicated by an intense irradiation in the mid- and near-ultraviolet (UV) spectral range for several reasons: (i) many astrobiologically relevant molecules are electronically excited by ...
Teresa Fornaro   +11 more
doaj   +1 more source

Life Detection Subsystem Progress Report No. 1 [PDF]

open access: yes
Radioisotopic biochemical probe for extraterrestrial life detection based on cell uptake of phosphate and ...
Perez, G. R., Usdin, E.
core   +1 more source

The HOMO-LUMO Gap as Discriminator of Biotic from Abiotic Chemistries

open access: yesLife
Low-molecular-mass organic chemicals are widely discussed as potential indicators of life in extraterrestrial habitats. However, demarcation lines between biotic chemicals and abiotic chemicals have been difficult to define.
Roman Abrosimov, Bernd Moosmann
doaj   +1 more source

Automatic plant pest detection and recognition using k-means clustering algorithm and correspondence filters [PDF]

open access: yes, 2013
Plant pest recognition and detection is vital for food security, quality of life and a stable agricultural economy. This research demonstrates the combination of the k-means clustering algorithm and the correspondence filter to achieve pest detection and
Birch, Philip   +5 more
core   +1 more source

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