Results 21 to 30 of about 1,716 (169)

A philosophical and historical perspective about terms Astrobiology, Exobiology, Cosmobiology, Xenology and Bioastronomy

Revista Opinião Filosófica, 2023
The main idea here is to present reflections on the general aspects that structure the conceptual conception of the field of search for extraterrestrial life.
Anelisa Heizer, Bruno Nascimento-Dias
doaj   +1 more source

Doppler cross-correlation spectroscopy as a path to the detection of Earth-like planets

Comptes Rendus. Physique, 2023
In the middle of the 20th century, a paradigm shift appeared concerning the expected frequency of planetary systems in the galaxy ...a shift induced by the observation of the rotational velocities of low main sequence stars (Struve 1952)!At the same time,
Mayor, Michel
doaj   +1 more source

Genomic Features of the Bundle-Forming Heliobacterium Heliophilum fasciatum

Microorganisms, 2022
Eight species of heliobacteria have had their genomes sequenced. However, only two of these genomes have been analyzed in detail, those from the thermophilic Heliomicrobium (Hmi.) modesticaldum and the alkaliphilic Heliorestis (Hrs.) convoluta.
Kelly S. Bender, Michael T. Madigan, Kyleigh L. Williamson, Marisa H. Mayer, Mary N. Parenteau, Linda L. Jahnke, Paula V. Welander, Sophia A. Sanguedolce, Abigail C. Brown, W. Matthew Sattley   +9 more
doaj   +1 more source

Stephen Hawking’s Warning on Contacting Aliens: A Physics Perspective on the Intelligence Trap [PDF]

Journal of Biomedical Physics and Engineering
The search for extraterrestrial intelligence is a fascinating and important endeavor, but it raises significant ethical and safety concerns. In the search for extraterrestrial intelligence, scientists use knowledge of physics to identify potential ...
Seyed Mohammad Javad Mortazavi, Joseph John Bevelacqua, Seyed Alireza Mortazavi, Payman Rafiepour, James S Welsh   +4 more
doaj   +1 more source

Ladderpath Approach: How Tinkering and Reuse Increase Complexity and Information

Entropy, 2022
The notion of information and complexity are important concepts in many scientific fields such as molecular biology, evolutionary theory and exobiology. Many measures of these quantities are either difficult to compute, rely on the statistical notion of ...
Yu Liu, Zengru Di, Philip Gerlee
doaj   +1 more source

Early Technology Readiness Level (TRL) Development of the Microfluidic Inorganic Conductivity Detector for Europa and the Solenoid-Based Actuator Assembly for Impact Penetrators

Sensors
This study introduces an innovative in situ lander/impact-penetrator design tailored for Discovery-class missions to Europa, specifically focused on conducting astrobiological analyses.
Chinmayee Govinda Raj, Mohamed Odeh, Cambrie Salyards, Amanda Stockton   +3 more
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High-Quality Genome-Scale Models From Error-Prone, Long-Read Assemblies

Frontiers in Microbiology, 2020
Advances in nanopore-based sequencing techniques have enabled rapid characterization of genomes and transcriptomes. An emerging application of this sequencing technology is point-of-care characterization of pathogenic bacteria.
Jared T. Broddrick, Richard Szubin, Charles J. Norsigian, Jonathan M. Monk, Bernhard O. Palsson, Mary N. Parenteau   +5 more
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The Illusion of Structural Order: Evaluating the Suppression of Amorphous Carbon Black Pigment Bands in SSE‐Processed Handheld Raman Spectra

Journal of Raman Spectroscopy, EarlyView.
The handheld Raman with SSE system efficiently mitigates fluorescence; however, it may also bias the Raman response towards graphitic domains in carbon‐based black pigments, thereby concealing amorphous carbon contributions that are critical for pigment type identification.
Zeynep Alp, Christoph Herm
wiley   +1 more source

First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique

Mass Spectrometry Reviews, EarlyView.
ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley   +1 more source

Crop growth and viability of seeds on Mars and Moon soil simulants

Open Agriculture, 2019
If humans are going to establish a base on the Moon or on Mars they will have to grow their own crops. An option is to use Lunar and Martian regolith. These regoliths are not available for plant growth experiments, therefore NASA has developed regolith ...
Wamelink G.W.W., Frissel J.Y., Krijnen W.H.J., Verwoert M.R.   +3 more
doaj   +1 more source