Toward a Biosignature for Suicide [PDF]
American Journal of Psychiatry, 2014 Suicide, a major cause of death worldwide, has distinct biological underpinnings. The authors review and synthesize the research literature on biomarkers of suicide, with the aim of using the findings of these studies to develop a coherent model for the biological diathesis for suicide.The authors examined studies covering a large range of ...
Maria A, Oquendo +6 more
openaire +2 more sources
Biosignatures associated with organic matter in late Paleoproterozoic stromatolitic dolomite and implications for Martian carbonates [PDF]
, 2022 The documentation of biosignatures in Precambrian rocks is an important requirement in the search for evidence of life on other ancient planetary surfaces. Three major kinds of biosignatures are crucially important: primary microbial sedimentary textures,
Papineau, D, Goodwin, A
core +2 more sources
Taphonomy of Biosignatures in Microbial Mats on Little Ambergris Cay, Turks and Caicos Islands
Frontiers in Earth Science, 2020 Microbial mats are taxonomically and metabolically diverse microbial ecosystems, with a characteristic layering that reflects vertical gradients in light and oxygen availability.
Maya L. Gomes +9 more
doaj +1 more source
Exoplanet Biosignatures: Understanding Oxygen as a Biosignature in the Context of Its Environment [PDF]
Astrobiology, 2018 55 pages. The paper is the second in a series of 5 review manuscripts of the NExSS Exoplanet Biosignatures Workshop.
Meadows, Victoria S +16 more
openaire +7 more sources
Using dimers to measure biosignatures and atmospheric pressure for terrestrial exoplanets [PDF]
, 2014 We present a new method to probe atmospheric pressure on Earth-like planets using (O-O) dimers in the near-infrared. We also show that dimer features could be the most readily detectable biosignatures for Earth-like atmospheres and may even be detectable
Misra, A. +4 more
core +1 more source
New Work on Biosignatures [PDF]
, 2023 The search for extraterrestrial life centres on the search for ‘biosignatures’. Yet there is little agreement within the scientific community with respect to what exactly it is for something to be a biosignature.
Christopher Cowie, Cowie, Christopher
core +1 more source
Identifying Molecules as Biosignatures with Assembly Theory and Mass Spectrometry [PDF]
, 2020 The search for evidence of life elsewhere in the universe is hard because it is not obvious what signatures are unique to life. Here we postulate that complex molecules found in high abundance are universal biosignatures as they cannot form by chance. To
Nicola, Bell +13 more
core +1 more source
Biosignatures Associated with Freshwater Microbialites [PDF]
Life, 2020 Freshwater microbialites (i.e., lithifying microbial mats) are quite rare in northern latitudes of the North American continent, with two lakes (Pavilion and Kelly Lakes) of southeastern BC containing a morphological variety of such structures. We investigated Kelly Lake microbialites using carbon isotope systematics, phospholipid fatty acids (PLFAs ...
Richard Allen White +5 more
openaire +6 more sources
Biosignatures in atmosfere di super Terre attorno a stelle M [PDF]
, 2022 L'elaborato si occupa dell'analisi delle potenziali biosignatures riscontrabili in atmosfere di super Terre attorno a stelle di tipo spettrale M: è quindi stata condotta un'indagine sulle atmosfere che potrebbero ospitare forme di vita e sui metodi ...
Banfi, Serena
core
Nonphotosynthetic Pigments as Potential Biosignatures [PDF]
, 2015 Previous work on possible surface reflectance biosignatures for Earth-like planets has typically focused on analogues to spectral features produced by photosynthetic organisms on Earth, such as the vegetation red edge.
Cockell, Charles S +8 more
core +3 more sources