Results 11 to 20 of about 434 (179)

COSMIC: An Ethernet-based Commensal, Multimode Digital Backend on the Karl G. Jansky Very Large Array for the Search for Extraterrestrial Intelligence

open access: yesThe Astronomical Journal, 2023
The primary goal of the search for extraterrestrial intelligence is to gain an understanding of the prevalence of technologically advanced beings (organic or inorganic) in the Galaxy.
C. D. Tremblay   +16 more
doaj   +1 more source

Search for Extraterrestrial Intelligence with the ngVLA

open access: yesThe Astronomical Journal, 2022
Abstract The next generation Very Large Array (ngVLA) will be the premiere centimeter-wave radio array in the Northern Hemisphere by the mid 2030s and thus has the potential to be one of the most effective instruments for the search for extraterrestrial intelligence (SETI).
C. Ng, L. Rizk, C. Mannion, E. F. Keane
openaire   +1 more source

The Most Sensitive SETI Observations Toward Barnard's Star with FAST

open access: yesThe Astronomical Journal, 2023
Search for extraterrestrial intelligence (SETI) has been mainly focused on nearby stars and their planets in recent years. Barnard’s star is the second closest star system to the Sun and the closest star in the Five-hundred-meter Aperture Spherical radio
Zhen-Zhao Tao   +6 more
doaj   +1 more source

A 4–8 GHz Galactic Center Search for Periodic Technosignatures

open access: yesThe Astronomical Journal, 2023
Radio searches for extraterrestrial intelligence have mainly targeted the discovery of narrowband continuous-wave beacons and artificially dispersed broadband bursts.
Akshay Suresh   +8 more
doaj   +1 more source

Biosemiotic knowledge — a prerequisite for valid explorations of extraterrestrial intelligent life

open access: yesSign Systems Studies, 2002
The scientific search for extraterrestrial intelligent life is probably one of the most ambitious projects ever taken in biology. The article discusses methodological problems associated with the search.
Elling Ulvestad
doaj   +1 more source

Application of the Thermodynamics of Radiation to Dyson Spheres as Work Extractors and Computational Engines and Their Observational Consequences

open access: yesThe Astrophysical Journal, 2023
I apply the thermodynamics of radiation to Dyson spheres as machines that do work or computation and examine their observational consequences. I identify four properties of Dyson spheres that complicate typical analyses: globally, they may do no work in ...
Jason T. Wright
doaj   +1 more source

The Local Galactic Transient Survey Applied to an Optical Search for Directed Intelligence

open access: yesThe Astrophysical Journal
We discuss our transient search for directed energy systems in local galaxies, with calculations indicating the ability of modest searches to detect optical Search for Extraterrestrial Intelligence sources in the closest galaxies. Our analysis follows P.
Alex Thomas   +28 more
doaj   +1 more source

The regulation of stem cell fate and its application in neural regeneration

open access: yesInterdisciplinary Medicine, EarlyView.
Regulating stem cell fate is crucial for neural regeneration. This review summarizes key physical, biological, and chemical strategies and their applications in repairing nerve injuries, providing new insights for regenerative medicine. Abstract Regulating the fate of stem cells (SCs) is a key technical problem in the field of regenerative medicine and
Yuexin He   +3 more
wiley   +1 more source

Using Anomaly Detection to Search for Technosignatures in Breakthrough Listen Observations

open access: yesThe Astronomical Journal
We implement a machine learning algorithm to search for extraterrestrial technosignatures in radio observations of several hundred nearby stars, obtained with the Parkes and Green Bank Telescopes by the Breakthrough Listen collaboration.
Snir Pardo   +4 more
doaj   +1 more source

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

open access: yesMass 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

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