Results 81 to 90 of about 15,621 (306)

Pixel-Wise and Class-Wise Semantic Cues for Few-Shot Segmentation in Astronaut Working Scenes

open access: yesAerospace
Few-shot segmentation (FSS) is a cutting-edge technology that can meet requirements using a small workload. With the development of China Aerospace Engineering, FSS plays a fundamental role in astronaut working scene (AWS) intelligent parsing.
Qingwei Sun   +6 more
doaj   +1 more source

Learning‐based cognitive control in ADHD: a multicentric study

open access: yesJournal of Child Psychology and Psychiatry, EarlyView.
Background Learning‐based cognitive control (CC), the ability to adapt control strategies based on contextual regularities, has been studied in typically developing (TD) children but remains underexplored in children with attention deficit hyperactivity disorder (ADHD).
Lisa Toffoli   +13 more
wiley   +1 more source

Multimechanistic actions of functional factors in enhancing physical strength and endurance: a scoping review of nutritional basis and natural extracts

open access: yesFrontiers in Sports and Active Living
This article provides a scoping review of various types of functional factors and their mechanisms of action in enhancing physical strength and endurance, focusing on their roles in regulating the central nervous system, improving energy metabolism ...
Xiangyu Huang   +7 more
doaj   +1 more source

Decreasing ventromedial prefrontal cortex deactivation in risky decision making after simulated microgravity: Effects of -6 degree head-down tilt bed rest

open access: yesFrontiers in Behavioral Neuroscience, 2014
Space is characterized by risk and uncertainty. As humans play an important role in long-duration space missions, the ability to make risky decisions effectively is important for astronauts who spend extended time periods in space. The present study used
Li-Lin eRao   +12 more
doaj   +1 more source

[News Clip: Astronaut]

open access: yes, 1961
Video footage from the WBAP-TV television station in Fort Worth, Texas, to accompany a news story about 25 female pilots picked as potential ...
WBAP-TV (Television station : Fort Worth, Tex.)
core  

The futuristic manifolds of REM sleep

open access: yesJournal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Since one of its first descriptions 70 years ago, rapid eye movement sleep has continually inspired and excited new generations of sleep researchers. Despite significant advancements in understanding its neurocircuitry, underlying mechanisms and microstates, many questions regarding its function, especially beyond the early neurodevelopment ...
Liborio Parrino, Ivana Rosenzweig
wiley   +1 more source

Is sleep affected after microgravity and hypergravity exposure? A pilot study

open access: yesJournal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep is known to be affected in space travel and in residents of the international space station. But little is known about the direct effects of gravity changes on sleep, if other factors, such as sleep conditions, are kept constant. Here, as a first exploration, we investigated sleep before and after exposure to short bouts of microgravity ...
Barbara Le Roy   +9 more
wiley   +1 more source

Astronauts Undergoing Tests_Part5

open access: yes, 1968
An unidentified Astronaut undergoing ...

core  

Nanoscale space weathering features in mature lunar soil revealed by TEM and APT

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Space weathering significantly alters the optical, chemical, and structural properties of lunar regolith at micro‐ and nanoscales; yet detailed nanoscale variability within individual soils remains underexplored. Here we apply transmission electron microscopy (TEM) and atom probe tomography to four mineral grains (olivine, ilmenite, and two ...
Jennika Greer   +6 more
wiley   +1 more source

Lunar module and EVA with astronaut

open access: yes
An Astronaut during a moon walk next to a Lunar Module and lunar ...

core  

Home - About - Disclaimer - Privacy