Results 31 to 40 of about 10,002 (189)

Classification of the Biogenicity of Complex Organic Mixtures for the Detection of Extraterrestrial Life

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, Huan Chen, Tomohiro Mochizuki, H. James Cleaves   +3 more
doaj   +1 more source

Fossil biomass preserved as graphitic carbon in a late paleoproterozoic banded iron formation metamorphosed at more than 550°C [PDF]

, 2019
Metamorphism is thought to destroy microfossils, partly through devolatilization and graphitization of biogenic organic matter. However, the extent to which there is a loss of molecular, elemental and isotope signatures from biomass during high ...
De Gregorio, BT, Drost, M, Kilcoyne, DA, Marbach, H, Nittler, L, Papineau, D, Sagar, J, Thornton, G, Thorogate, R, Wang, J   +9 more
core   +2 more sources

A Plasma 5-Marker Host Biosignature Identifies Tuberculosis in High and Low Endemic Countries

Frontiers in Immunology, 2021
Background: Several host inflammatory markers have been proposed as biomarkers for diagnosis and treatment response in Tuberculosis (TB), but few studies compare their utility in different demographic, ethnic, and TB endemic settings.Methods: Fifty-four ...
Bih H. Chendi, Bih H. Chendi, Candice I. Snyders, Kristian Tonby, Kristian Tonby, Synne Jenum, Martin Kidd, Gerhard Walzl, Novel N. Chegou, Anne M. Dyrhol-Riise, Anne M. Dyrhol-Riise   +10 more
doaj   +1 more source

Fingerprinting Non-Terran Biosignatures [PDF]

Astrobiology, 2018
Most strategies for life detection rely upon finding features known to be associated with terran life, such as particular classes of molecules. But life may be vastly different on other planets and moons, particularly as we expand our efforts to explore ocean worlds like Europa and Enceladus.
Johnson, Sarah S., Anslyn, Eric V., Graham, Heather V., Mahaffy, Paul R., Ellington, Andrew D.   +4 more
openaire   +2 more sources

Hierarchical interactions model for predicting Mild Cognitive Impairment (MCI) to Alzheimer's Disease (AD) conversion.

PLoS ONE, 2014
Identifying patients with Mild Cognitive Impairment (MCI) who are likely to convert to dementia has recently attracted increasing attention in Alzheimer's disease (AD) research.
Han Li, Yashu Liu, Pinghua Gong, Changshui Zhang, Jieping Ye, Alzheimers Disease Neuroimaging Initiative   +5 more
doaj   +1 more source

Network-based integrative multi-omics approach reveals biosignatures specific to COVID-19 disease phases

Frontiers in Molecular Biosciences
BackgroundCOVID-19 disease is characterized by a spectrum of disease phases (mild, moderate, and severe). Each disease phase is marked by changes in omics profiles with corresponding changes in the expression of features (biosignatures).
Francis E. Agamah, Thomas H. A. Ederveen, Michelle Skelton, Darren P. Martin, Emile R. Chimusa, Peter A. C. ’t Hoen   +5 more
doaj   +1 more source

Exoplanet Terra Incognita

, 2018
Exoplanet surface imaging, cartography and the search for exolife are the next frontiers of planetology and astrophysics. Here we present an over-view of ideas and techniques to resolve albedo features on exoplanetary surfaces.
A Carbognani, B-O Demory, C Burke, C Maccone, D Morrison, D Sirbu, DM Fluri, F Feng, F Pont, G Anglada-Escudé, H Kawahara, HA Knutson, HN Russell, IAG Snellen, IJM Crossfield, IJM Crossfield, J Harrington, J Krissansen-Totton, JC Schwartz, JL Grenfell, M Bonnefoy, M Kaasalainen, MF Sterzik, MW Buie, NB Cowan, NB Cowan, P Ingraham, R Heller, R Heller, SV Berdyugina, SV Berdyugina, SV Berdyugina, SV Berdyugina, T Karalidi, TM Evans, VR Eshleman, VS Meadows, Y Fujii   +37 more
core   +1 more source

Discriminating between extinct and extant life detection: implications for future Mars missions

Frontiers in Astronomy and Space Sciences
The search for biosignatures on Mars has been a high priority for astrobiology. The approach to detecting putative biosignatures has largely been focused on chemical analyses targeting predominantly extinct life.
Katherine A. Dzurilla, Bronwyn L. Teece
doaj   +1 more source

Correlation Network Analysis for Amino Acid Identification in Soil Samples With the ORIGIN Space-Prototype Instrument

Frontiers in Astronomy and Space Sciences, 2022
The detection of biomolecules on Solar System bodies can help us to understand how life emerged on Earth and how life may be distributed in our Solar System.
Loraine Schwander, Niels F.W. Ligterink, Kristina A. Kipfer, Rustam A. Lukmanov, Valentine Grimaudo, Marek Tulej, Coenraad P. de Koning, Peter Keresztes Schmidt, Salome Gruchola, Nikita J. Boeren, Nikita J. Boeren, Pascale Ehrenfreund, Pascale Ehrenfreund, Peter Wurz, Peter Wurz, Andreas Riedo, Andreas Riedo   +16 more
doaj   +1 more source

Detecting industrial pollution in the atmospheres of earth-like exoplanets

, 2014
Detecting biosignatures, such as molecular oxygen in combination with a reducing gas, in the atmospheres of transiting exoplanets has been a major focus in the search for alien life.
Abad, Gonzalo Gonzalez, Lin, Henry W., Loeb, Abraham   +2 more
core   +1 more source