Results 101 to 110 of about 9,833 (194)

Environmental Consequences of an Emerging Biosphere [PDF]

, 2003
It seems feasible to detect biological signatures ("biosignatures") in other planetary systems using the tools of astronomy. There are at least two types of biosignatures; spectral and/or polarization features created by biological products, and ...
DesMarais, David J.
core   +1 more source

An exploration of origin of life for exoplanetary science

Frontiers 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, Tiffany Kataria, Laura M. Barge, Pin Chen, Yuk Yung, Jessica M. Weber   +5 more
doaj   +1 more source

Metabolic Processes Preserved as Biosignatures in Iron-Oxidizing Microorganisms: Implications for Biosignature Detection on Mars [PDF]

Iron-oxidizing bacteria occupy a distinct environmental niche. These chemolithoautotrophic organisms require very little oxygen (when neutrophilic) or outcompete oxygen for access to Fe(II) (when acidophilic).
Emerson, David, Floyd, Melissa A. Merrill, Grubisic, Andrej, Williams, Amy J.   +3 more
core   +1 more source

Searching for Evidence of Life in Deep Time and Space [PDF]

Cyanobacterial mats provide insights into ancient benthic microbial communities and their biosignatures. Thick mats occupy hypersaline saltern ponds at Guerrero Negro, Baja California, Mexico.
Des Marais, David J.
core   +1 more source

What can we learn about influenza infection and vaccination from transcriptomics?

Human Vaccines & Immunotherapeutics, 2019
Transcriptomics studies the set of RNA transcripts produced by the genome using high-throughput sequencing and bioinformatics. This growing field has revolutionized our understanding of host-pathogen interactions, revealing new insights into the host ...
Suchitra Rao, Debashis Ghosh, Edwin J. Asturias, Adriana Weinberg   +3 more
doaj   +1 more source

Editorial: Presentations at the 4th Workshop of the German Astrobiological Society (DAbG) on Astrobiology, 26–27 September 2019, Vienna, Austria

Frontiers in Astronomy and Space Sciences, 2021
Tetyana Milojevic, Rosa De La Torre Noetzel, Oliver Strbak, Dirk Schulze-Makuch, Dirk Schulze-Makuch, Dirk Schulze-Makuch   +5 more
doaj   +1 more source

Tracking the record of early life

Carnets de Géologie, 2005
Life may have been present on Earth from about 3.8 Ga or earlier. Based on a combination of geochemical, morphological and sedimentological evidence, the early biosphere included a wide diversity of prokaryotes exhibiting modern metabolisms that thrived ...
Marshall Craig P., Javaux Emmanuelle J.
doaj  

Editorial: Terrestrial analogues of extraterrestrial environments: Assessing habitability and biosignatures preservation

Frontiers in Astronomy and Space Sciences, 2022
Jonathan Clarke, Margarita Safonova, Chandra Sivaram, Siddharth Pandey, Jennifer G. Blank   +4 more
doaj   +1 more source

Editorial: Head & Neck Cancer and Esophageal Cancer: From Biosignatures to Therapeutics

Frontiers in Oncology, 2021
Victor C. Kok, Victor C. Kok, Cheng-Chia Yu, Cheng-Chia Yu, Jorge A.R. Salvador   +4 more
doaj   +1 more source

Vertical Transmission of Gut Dysbiosis From Mothers With Gestational Diabetes to Infants

Journal of Diabetes
Background Vertical transmission of microbes from a mother's gut to their offspring plays a crucial role in the genesis of the early life gut microbiome.
Jia Ming Low, Abhishek Gupta, Rachel Toh, Su Lin Lim, Shiao‐Yng Chan, Sanjay Swarup, Le Ye Lee   +6 more
doaj   +1 more source