Results 31 to 40 of about 13,992,929 (227)
Life, 2021 Searching for life in the Universe depends on unambiguously distinguishing biological features from background signals, which could take the form of chemical, morphological, or spectral signatures.
Nicholas Guttenberg +3 more
doaj +1 more source
MiR-483-3p regulates oxaliplatin resistance by targeting FAM171B in human colorectal cancer cells
Artificial Cells, Nanomedicine, and Biotechnology, 2019 Oxaliplatin resistance limits the efficiency of treatment for colorectal cancer (CRC). Studies have shown that abnormal expression of microRNAs (miRNAs) were associated with tumorigenesis, cancer development and chemoresistance. The purpose of this study
Hui Liang +8 more
doaj +1 more source
Frontiers in Astronomy and Space Sciences, 2022 We present a novel, innovative approach to gas chromatography-mass spectrometry (GC-MS) based on micro-electro-mechanical systems (MEMS) columns that improve the current, state-of-the-art by dramatically reducing the size, mass, and power resources for ...
Ryan C. Blase +13 more
doaj +1 more source
Simultaneous Life Detection and Localization Using a Wideband Chaotic Signal with an Embedded Tone. [PDF]
Sensors (Basel), 2016 A hybrid life detection radar system which transmits a wideband chaotic signal containing an embedded single-tone is proposed. The chaotic signal is used for target localization by the time-domain correlation method and synthetic aperture technique, and ...
Liu L +5 more
europepmc +2 more sources
How to Detect Life on Icy Moons [PDF]
Astrobiology, 2018 The icy moons of the outer Solar System present the possibility of subsurface water, habitable conditions, and potential abodes for life. Access to evidence that reveals the presence of life on the icy moons can be facilitated by plumes that eject material from the subsurface out into space.
Sephton, MA, Waite, JH, Brockwell, TG
openaire +4 more sources
A Subcritical Water Extractor Prototype for Potential Astrobiology Spaceflight Missions
Earth and Space Science, 2019 A top‐level NASA exploration goal is the search for signs of life beyond Earth. Molecular biosignatures can be sought via in situ organic chemical analyses of samples collected from planetary bodies.
F. Kehl +4 more
doaj +1 more source
Nanomaterials, 2023 Tobacco bacterial wilt is a serious disease caused by the soil-borne bacterium Ralstonia solanacearum (R. solanacearum). Herein, a rapid and purification-free α-hemolysin (α-HL) nanopore-sensing strategy based on polymerase chain reaction (PCR) and ...
Ying Wang +5 more
doaj +1 more source
Astrobiology, 2020 No instrument capable of direct life detection has been included on a mission payload to Mars since NASA's Viking missions in the 1970s. This prevents us from discovering whether life is or ever was present on Mars.
C. Maggiori +7 more
semanticscholar +1 more source
Using the Pattern-of-Life in Networks to Improve the Effectiveness of Intrusion Detection Systems [PDF]
, 2017 The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.As the complexity of cyber-attacks keeps increasing, new and more robust detection mechanisms need to be ...
Aparicio-Navarro, Francisco J. +4 more
core +3 more sources
Biogenic Metal Nanoparticles: A New Approach to Detect Life on Mars?
Life, 2020 Metal nanoparticles (MNPs) have been extensively studied. They can be produced via different methods (physical, chemical, or biogenic), but biogenic synthesis has become more relevant, mainly for being referred by many as eco-friendly and more ...
Marta Filipa Simões +2 more
doaj +1 more source