Results 181 to 190 of about 180,632 (304)

Using unmanned aerial vehicles (drones) to improve access to blood in low‐ and middle‐income countries: Current challenges and opportunities

open access: yesVox Sanguinis, EarlyView.
Abstract Blood transfusion is life‐saving for patients in emergencies, but low‐ and middle‐income countries (LMICs) often face a severe shortage of banked blood. Establishing blood banks in rural areas presents substantial logistical and economic challenges for many LMICs.
Suvro Sankha Datta   +4 more
wiley   +1 more source

Propfan Test Assessment (PTA) [PDF]

open access: yes
The objectives of the Propfan Test Assessment (PTA) Program were to validate in flight the structural integrity of large-scale propfan blades and to measure noise characteristics of the propfan in both near and far fields. All program objectives were met
Bartel, H. W.   +4 more
core   +1 more source

Women in space: A review of known physiological adaptations and health perspectives

open access: yesExperimental Physiology, EarlyView.
Abstract Exposure to the spaceflight environment causes adaptations in most human physiological systems, many of which are thought to affect women differently from men. Since only 11.5% of astronauts worldwide have been female, these issues are largely understudied.
Millie Hughes‐Fulford   +4 more
wiley   +1 more source

Engine exhaust characteristics evaluation in support of aircraft acoustic testing [PDF]

open access: yes
NASA Dryden Flight Research Facility and NASA Langley Research Center completed a joint acoustic flight test program. Test objectives were (1) to quantify and evaluate subsonic climb-to-cruise noise and (2) to obtain a quality noise database for use in ...
Ennix, Kimberly A.
core   +1 more source

The High Stakes of High Decibels: The Cardiovascular Fallout From Aircraft Noise. [PDF]

open access: yesJ Am Coll Cardiol
Münzel T   +5 more
europepmc   +1 more source

Aircraft noise exposure drives the activation of white blood cells and induces microvascular dysfunction in mice. [PDF]

open access: yesRedox Biol, 2021
Eckrich J   +16 more
europepmc   +1 more source

An experimentally informed computational model of neurovestibular adaptation to altered gravity

open access: yesExperimental Physiology, EarlyView.
Abstract Transitions to altered gravity environments result in acute sensorimotor impairment for astronauts, leading to serious mission and safety risks in the crucial first moments in a new setting. Our understanding of the time course and severity of impairment in the early stages of adaptation remains limited and confounded by unmonitored head ...
Victoria G. Kravets, Torin K. Clark
wiley   +1 more source

Annoyance due to multiple airplane noise exposure [PDF]

open access: yes
A laboratory study was conducted to investigate the annoyance effects of multiple aircraft noise exposure in which 250 subjects judged the annoyance of half-hour periods of airplane noise simulative of typical indoor home exposures.
Powell, C. A.
core   +1 more source

Jumping on the moon as a potential exercise countermeasure

open access: yesExperimental Physiology, EarlyView.
Abstract The Moon's gravitational field strength (17% Earth's gravity) may facilitate the use of bodyweight jumping as an exercise countermeasure against musculoskeletal and cardiovascular deconditioning in reduced gravity settings. The present study characterised the acute physiological and kinetic responses to bodyweight jumping in simulated Lunar ...
Patrick Swain   +4 more
wiley   +1 more source

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