Results 131 to 140 of about 1,196,768 (246)

Does the Lunar Cycle Affect Birth and Deaths? [PDF]

open access: yes
There is a commonplace notion that full moons affect natality and mortality. To test this theory, we obtain daily births and deaths data from Australia, covering all 10,592 days from 1 January 1975 to 31 December 2003.
Andrew Leigh, Joshua S. Gans
core  

A Human–Robot Team Knowledge-Enhanced Large Language Model for Fault Analysis in Lunar Surface Exploration

open access: yesAerospace
Human–robot collaboration for lunar surface exploration requires high safety standards and tedious operational procedures. This process generates extensive task-related data, including various types of faults and influencing factors.
Hao Wang   +4 more
doaj   +1 more source

A Review of Lidar Technology in China’s Lunar Exploration Program

open access: yes
Lidar technology plays a pivotal role in lunar exploration, particularly in terrain mapping, 3D topographic surveying, and velocity measurement, which are crucial for guidance, navigation, and control.
Genghua Huang, Weiming Xu
core   +1 more source

Sex differences in cerebral blood flow and cardiac function in response to exercise in the heat

open access: yesExperimental Physiology, EarlyView.
Abstract We investigated the effect of exercising in hot conditions on cerebral blood flow and systolic left ventricular (LV) function in males and females, to explore sex differences. The experimental condition consisted of walking on a treadmill at 5 km/h and 2% incline, inside a heat chamber at 40°C (50% relative humidity), for 90 min.
João Carlos Locatelli   +13 more
wiley   +1 more source

Frontiers and prospects of lunar mining technology

open access: yesMeitan xuebao
The moon harbors exceptionally abundant and strategically valuable spatial and material resources. As human lunar exploration gradually enters a new phase of development and utilization, lunar mining is transitioning from a strategic concept to tangible ...
Heping XIE   +9 more
doaj   +1 more source

Hazards of lunar surface exploration: determining the immunogenicity/allergenicity of lunar dust

open access: yesFrontiers in Immunology
Although infrequent, there have been Apollo program reports of lunar dust exposure leading to notable upper respiratory symptoms in select crewmembers. Possible mechanisms include particulate irritation, inflammation from toxic insult, or legitimate adaptive immune-mediated response.
Audrie A. Colorado   +5 more
openaire   +3 more sources

Lunar and Planetary Science twenty-four

open access: yes, 1993
You must extract the zipped files before using. To begin viewing the abstracts, click on the file "index.html."The topics covered include the following: meteorites, meteoritic composition, geochemistry, planetary geology, planetary composition, planetary

core  

Exercise during 14 days of head down tilt bedrest attenuates motor unit impairments in older humans

open access: yesExperimental Physiology, EarlyView.
Abstract Head‐down tilt bedrest (HDBR) models the effects of mechanical unloading on neuromuscular function. The efficacy of exercise in preserving motor unit (MU) function in older adults during HDBR remains unclear. This study investigated the effects of 14‐day HDBR on MU properties in older adults and the protective role of exercise.
Philippe St‐Martin   +8 more
wiley   +1 more source

Impact of 14 days of head‐down bed rest and an exercise countermeasure on skeletal muscle atrophy, proteome and circulatory cytokines in older adults

open access: yesExperimental Physiology, EarlyView.
Abstract Prolonged bed rest and immobilization have deleterious effects on skeletal muscle mass and function, especially in older adults. These can lead to reduced physical capacity and quality of life. Previous experiments in younger individuals show that exercise can mitigate these effects, but evidence remains scarce and inconclusive in older adults.
Jean‐Christophe Lagacé   +9 more
wiley   +1 more source

Multi-Objective Optimization of Cislunar Navigation Constellations and Mission Validation for Lunar Re-Exploration

open access: yesAdvances in Astronomy
To address the limitations of traditional navigation systems in lunar exploration missions regarding positioning accuracy and coverage, this study proposes a multi-objective optimization framework for the Lunar Navigation Satellite System (LNSS) to ...
Xiao Chen   +4 more
doaj   +1 more source

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