Results 121 to 130 of about 17,989,902 (389)
Space weather impacts on aviation: bridging scientific understanding and operational implications
Frontiers in Astronomy and Space SciencesSpace weather, long considered a peripheral concern for aviation, is increasingly recognized as a significant systemic factor influencing global flight operations.
Y. Wang +14 more
doaj +1 more source
Journal of Transport and Land Use, 2015 The proportion of teens and young adults with driver’s licenses has declined sharply in many industrialized countries including the United States. Explanations for this decline have ranged from the introduction of graduated driver licensing programs to ...
Noreen McDonald +7 more
doaj +1 more source
International Journal of Environmental Research and Public Health, 2018 Scholars in the fields of health geography, urban planning, and transportation studies have long attempted to understand the relationships among human movement, environmental context, and accessibility.
Jue Wang, M. Kwan, Y. Chai
semanticscholar +1 more source
Activity space-based measures of the food environment and their relationships to food purchasing behaviours for young urban adults in Canada. [PDF]
Public Health Nutr, 2018 Widener MJ +5 more
europepmc +2 more sources
Johnson Space Center software reuse activity [PDF]
There is a strong operational interest in reuse and commonality at the Johnson Space Center (JSC). Although commonality and reuse were not emphasized in the Space Shuttle Orbiter Project, it is a major goal for Space Station Freedom and the Software ...
Gorman, Steve
core +1 more source
FEBS Letters, EarlyView.To explore the impact of the overexpression of the multidrug‐transporter P‐glycoprotein (ABCB1) on membrane fluidity, we compared the transversal gradient of mobility and microviscosity in plasma membranes of drug‐sensitive Chinese hamster ovary cells (AuxB1) and their multidrug‐resistant derivatives (B30) using the fluorescent n‐(9‐anthroyloxy) fatty ...
Roger Busche +2 more
wiley +1 more source
The principle of the space activity suit [PDF]
Space activity suit designed for active astronaut working in vacuum environments for up to four ...
Annis, J. F., Webb, P.
core +1 more source
, 2007 This paper summarises the latest theories in the field of space syntax. It opens with a discussion of the relationship between the form of urban grids and the process of how cities are formed by human activity; this is done by a comprehensive review of ...
Hillier, B, Vaughan, L
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FEBS Letters, EarlyView.Most MmpLs transport lipids and glycolipids of the complex mycomembrane of mycobacteria. This study shows that MmpL10 from Mycobacterium smegmatis, the transporter of the trehalose polyphosphate precursor, harbors a coiled‐coil‐like extension. Biochemical and electron microscopy studies demonstrate that the coiled‐coil enables MmpL10 to trimerize.
Julie Couston +7 more
wiley +1 more source
, 2014 Stellar flares, winds and coronal mass ejections form the space weather. They are signatures of the magnetic activity of cool stars and, since activity varies with age, mass and rotation, the space weather that extra-solar planets experience can be very ...
Alvarado, J. +10 more
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