Results 71 to 80 of about 31,297 (265)

Toward stable astronaut following of extravehicular activity assistant robots using deep reinforcement learning

open access: yesInternational Journal of Advanced Robotic Systems, 2022
The use of mobile robots for assisting astronauts in extravehicular activities could be an effective option for improving mission productivity and crew safety.
Ruijun Hu, Yulin Zhang, Chuanxiang Li
doaj   +1 more source

The Effectiveness of Interventions Addressing Conspiracy Beliefs: A Meta‐Analysis

open access: yesEuropean Journal of Social Psychology, EarlyView.
ABSTRACT Reducing conspiracy beliefs through effective interventions may help mitigate potential harmful consequences, such as vaccine hesitancy and prejudice. Therefore, a systematic literature search was conducted in Web of Science, PsycINFO, and Google Scholar for experiments testing interventions that could potentially reduce conspiracy beliefs ...
Lukasz Stasielowicz
wiley   +1 more source

Immune challenges and pathogen risks in edible insects: safeguarding health in space life-support systems

open access: yesFrontiers in Physiology
As space agencies progress toward long-duration missions and extraterrestrial colonisation, Bioregenerative Life Support Systems (BLSS) have become central to achieving closed-loop sustainability.
Annette Bruun Jensen   +6 more
doaj   +1 more source

Interstellar Communication: The Case for Spread Spectrum

open access: yes, 2011
Spread spectrum, widely employed in modern digital wireless terrestrial radio systems, chooses a signal with a noise-like character and much higher bandwidth than necessary.
Messerschmitt, David G.
core   +1 more source

Low‐temperature soft electrochemical actuator based on hierarchically structured polypyrrole membranes for subzero operation

open access: yesFlexMat, EarlyView.
A soft electrochemical actuator using a hierarchically structured polypyrrole membrane with coral‐like hollow vesicles achieves stable performance at −24°C. The unique architecture ensures continuous conductivity and rapid ion diffusion, resulting in large strain, low energy consumption, and high coulombic efficiency under subzero conditions. This work
Lizhen Lan   +6 more
wiley   +1 more source

A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates

open access: yesGeophysical Monograph Series, Page 47-54., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky   +2 more
wiley  

+1 more source

Copper and zinc isotopic excursions in the human brain affected by Alzheimer's disease

open access: yesAlzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring, 2020
Introduction Alzheimer's disease (AD) is neuropathologically marked by amyloid beta (Aβ) plaques and neurofibrillary tangles. Little is known about isotopic compositions of human AD brains.
Frédéric Moynier   +6 more
doaj   +1 more source

New SETI Sky Surveys for Radio Pulses

open access: yes, 2010
Berkeley conducts 7 SETI programs at IR, visible and radio wavelengths. Here we review two of the newest efforts, Astropulse and Fly's Eye. A variety of possible sources of microsecond to millisecond radio pulses have been suggested in the last several
Andrew Siemion   +17 more
core   +1 more source

Temperature‐Dependent Investigation of the S‐Branch Raman Linewidth in CO2 via Time‐Resolved Rotational CARS

open access: yesJournal of Raman Spectroscopy, EarlyView.
We studied the temporal evolution of the rotational coherent anti‐Stokes Raman scattering (RCARS) signal of CO2 to determine the S‐branch Raman linewidth, which is an essential parameter for accurate spectral modeling in RCARS gas‐phase diagnostics. We found a non‐monotonic J‐dependence of the S‐branch Raman linewidth not accounted for in previously ...
Henry Misoi   +4 more
wiley   +1 more source

Multidisciplinary research leading to utilization of extraterrestrial resources [PDF]

open access: yes
Properties of rocks, soils, and minerals in ultrahigh vacuum facility simulating lunar environment, for extraterrestrial resource ...
Fogelson, D. E.
core   +4 more sources

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