The computation of individual cumulative cosmic radiation doses from pilot flight records, which takes into account changes in altitude and latitude, and stage of the 11-year solar cycle at the time of flight, will permit analyses based on cosmic radiation exposure estimates rather than the exposure surrogate of flight years. (cdc.gov)
Meters6
High-altitude adaptation in humans is an instance of evolutionary modification in certain human populations, including those of Tibet in Asia, the Andes of the Americas, and Ethiopia in Africa, who have acquired the ability to survive at altitudes above 2,500 meters (8,200 ft). (wikipedia.org)
Around 81.6 million humans (approximately 1.1% of the world's human population) live permanently at altitudes above 2,500 meters (8,200 sf), putting these populations at risk for chronic mountain sickness (CMS). (wikipedia.org)
When humans from the general lowlands go to altitudes above 2,500 meters (8,200 ft) they experience altitude sickness, which is a type of hypoxia, a clinical syndrome of severe lack of oxygen. (wikipedia.org)
Fairly large numbers (approximately 600,000) live at an altitude exceeding 4,500 meters (14,800 ft) in the Chantong-Qingnan area. (wikipedia.org)
Sky Warrior has a wingspan 18 meters/56 feet and is 9 meters/28 feet long. (strategypage.com)
The MQ-9 Reaper is a 4.7 ton, 11.6 meters (36 foot) long aircraft with a 21.3 meters (66 foot) wingspan that looks like the MQ-1. (strategypage.com)
12.51
It was a similar flight to that carried out by Starship SN8 which reached an altitude of 12.5 kilometres before attempting to land back on the ground - which it failed at too. (neowin.net)
Reaper3
The Predator replacement, the MQ-9 Reaper, has flown nearly 250,000 hours so far. (strategypage.com)
The U.S. Air Force has ordered nearly fifty MQ-9 Reaper UAVs this year. (strategypage.com)
The 4.7 ton larger MQ-9 Reaper had a loss rate of about 15 last year, after four years in service. (strategypage.com)
UAVs3
Four years ago, the army quietly bought twenty Predator type UAVs (called Sky Warrior Alpha) from the same firm that manufactures the Predator and Sky Warrior. (strategypage.com)
Each of these UAVs costs $8-20 million each, depending on the sensor package. (strategypage.com)
China is trying to export UAVs nearly identical to the Predator, but about 20 percent lighter. (strategypage.com)
Sun's1
The Sun's altitude in 9°00'26.7"S, 35°13'36.0"W today. (timeanddate.com)
Azimuth4
Fig 1: Close up of the NoH CT-20 Alt-Az (Altitude-Azimuth) mount configured with a Vixen-style saddle. (cloudynights.com)
The NoH CT-20 Alt-Az (altitude-Azimuth) mount is a product offering that is designed, manufactured, and sold by Mr. Noh in South Korea. (cloudynights.com)
The Altitude-Azimuth type of mount is my personal favorite for visual astronomical observing. (cloudynights.com)
Altitude-Azimuth mounts are also in my experience the fastest mounting to setup with nothing to do other than place the mount on the ground, attach the telescope, and start observing. (cloudynights.com)
Predator1
The air force wants to buy another 200 before replacing the MQ-9 with the MQ-X. The MQ-1 Predator is being replaced by the MQ-9 and the last USAF MQ-1 was built last year. (strategypage.com)
Hypoxia2
Certain natives of Tibet, Ethiopia, and the Andes have been living at these high altitudes for generations and are protected from hypoxia as a consequence of genetic adaptation. (wikipedia.org)
SUMMARY: To investigate changes of MMP-9 in the rat spleen and hypoxia-induced microvascular basement membrane under high altitude hypoxia. (bvsalud.org)
However, the high-altitude populations in South America, East Africa, and South Asia have done so for millennia without apparent complications. (wikipedia.org)
World's1
Traditional indigenous territories encompass over 20 per cent of the world's land surface and overlap with areas that hold around 80 per cent of the planet's biodiversity. (lu.se)
Climate2
Workers in the Western states may face unique hazards, including climate extremes, long distance commutes, and working at altitude, and in remote locations. (cdc.gov)
They are disproportionately vulnerable to climate change as many live in the most affected regions including high altitudes, humid tropics, coastal regions, deserts and polar areas and they depend on ecosystems that are particularly prone to the effects of climate change, such as rising sea levels, floods, droughts, heat waves, wildfires and cyclones. (lu.se)
Flight3
Altitude is typically only used to describe the height of an aircraft in flight. (stackexchange.com)
It was a decade ago that the MQ-9 made its first flight. (strategypage.com)
Before 9/11, I would arrive at an airport roughly 20 minutes before a flight would leave. (campchampions.com)
Elevation5
Which to use: 'altitude' or 'elevation' in regards to height above sea level? (stackexchange.com)
However, a user sent me an email regarding my use of the word altitude and recommended that I switch it to elevation saying "Altitude is a measurement used to show how far off the ground you are, elevation is used to show how high above sea level you are. (stackexchange.com)
As a very loose data point consider google: 'altitude map' (with the quotes) gives 12K approximate hits, while 'elevation map' with quotes gives 126K approximate hits. (stackexchange.com)
Both altitude and elevation are measures of the height of a point relative to some datum. (stackexchange.com)
Whether to use altitude or elevation for your application is largely a matter of preference, I'd say. (stackexchange.com)
High16
This adaptation means irreversible, long-term physiological responses to high-altitude environments, associated with heritable behavioural and genetic changes. (wikipedia.org)
One of the best-documented effects of high altitude is a progressive reduction in birth weight. (wikipedia.org)
It has been known that women of the long-resident, high-altitude population are not affected. (wikipedia.org)
The first scientific investigation of high-altitude adaptation was done by A. Roberto Frisancho of the University of Michigan in the late 1960s among the Quechua people of Peru. (wikipedia.org)
Paul T. Baker, Penn State University, (in the Department of Anthropology) also conducted a considerable amount of research into human adaptation to high altitudes, and mentored students who continued this research. (wikipedia.org)
One of these students, anthropologist Cynthia Beall of Case Western Reserve University, began to conduct research on high altitude adaptation among the Tibetans in the early 1980s, still doing so to this day. (wikipedia.org)
Two gamma-ray glows were observed by a high-altitude NASA ER-2 aircraft flying at 20 km altitude over a thunderstorm in Colorado, USA. (uib.no)
It's because of these system-wide adaptations that we not only can survive at high altitudes, but we can also live, perform well, and thrive overall in them. (irunfar.com)
However, I think the biggest driver in performance-related high-altitude research was the 1968 Summer Olympics in Mexico City. (irunfar.com)
This study compared the prevalence of depression in older adults living in high-altitude and low-altitude regions, and their association with quality of life (QOL). (frontiersin.org)
A total of 632 older nursing home residents were included, with 425 participants living in low-altitude and 207 participants living in high-altitude regions. (frontiersin.org)
The prevalence of depression was 26.9% (95% CI: 23.43-30.37%) in the whole sample of older nursing home residents, with 11.1% (95% CI: 8.01-14.05%) in those living in low-altitude and 59.4% (95% CI: 52.68-66.17%) in those living in high-altitude regions. (frontiersin.org)
Depression was common in older nursing home residents especially those living in the high-altitude region. (frontiersin.org)
For instance, a study conducted in the USA found a positive correlation between increased risk of suicide and high-altitude ( 14 , 15 ). (frontiersin.org)
After seeing this answer claiming that displacing matter "In a very short time", "no matter whether the matter is solid, liquid, or gas" (even though he concludes that falling from a high altitude is fatal, independent of this). (stackexchange.com)
Dose1
For example, polonium-210 (Po-210) has a specific activity of 166 terabecquerels per gm (TBq/g), and 1 mcg (about the size of a grain of salt) of Po-210 delivers a whole body dose of 50 Sv (~20 times the median lethal dose). (msdmanuals.com)
Long1
Annual radiation doses for pilots range from 0.2-10 mSv with long-haul crew averaging 5-9 mSv per year. (cdc.gov)
The verdict on altitude acclimation is that, if you are healthy, nothing beats the real stuff and finding some quality mountain time might be in your future. (irunfar.com)
All times are local time for 9°00'26.7"S, 35°13'36.0"W. They take into account refraction . (timeanddate.com)
All times are local 9°00'26.7"S, 35°13'36.0"W time. (timeanddate.com)
The conjunction will be at an altitude of seven degrees above the horizon to the northeast at this time. (space.com)
Analysis revealed1
Spearman analysis revealed close negative relationships between the top 20 significantly differential metabolites and Anaerococcus in the ruminal contents. (bvsalud.org)
Typical2
Presumably the typical moving car has zero altitude with respect to the ground below it, Evel Knievel notwithstanding. (stackexchange.com)
Environmental factors such as altitude are strongly linked with psychiatric problems ( 13 ). (frontiersin.org)
Eclipse4
The mission's twenty-fifth eclipse season ended on 5 October. (esa.int)
20-of-the-best-places-to-view-the-2024-great-north-american-eclipse https://www.astronomy.com/observing/20-of-the-best-places-to-view-the-2024-great-north-american-eclipse/ 20 of the best places to view the 2024 total solar eclipse Set up shop near the eclipse center line, where totality lasts the longest. (astronomy.com)
Here are 20 great spots to see the 2024 total solar eclipse. (astronomy.com)
Below are 20 great locations you should consider for the 2024 Great North American Eclipse, starting in Mexico and working to the Northeast U.S. (astronomy.com)
Times1
Low birth weight infants are about 20 times more likely to die than heavier infants. (who.int)
Hours1
Over 20 percent of those hours were flown this year. (strategypage.com)
Experience1
The design and operation of the MQ-9 learned much from the experience of the MQ-1. (strategypage.com)
Ground1
But according to the manual, it doesn't exactly do what you want, because it only checks and adjusts the ground altitude at waypoints. (diydrones.com)
Multiple2
The replacement for the MQ-9 (MQ-X) is still in the design stage, although budget cuts and improved sensors (multiple cameras on one aircraft) may force the air force to just "evolve" the MQ-9. (strategypage.com)
Fig 3: Multiple views of the NoH CT-20 Alt-Az mount head. (cloudynights.com)
Type1
The NoH CT-20 mount I received for this evaluation was a completely manual version of this mount type. (cloudynights.com)
Percent1
Some 20 percent of these have been lost to accidents. (strategypage.com)
Journal1
Journal of the American Heart Association 2023 9 12 (19): e029518. (cdc.gov)
Start1
Start: Sunday 20 August 2023 at 10 a.m. (ticino.ch)
Blood1
Routine blood tests, MMP-9 mRNA, MMP-9 protein, and the spleen microvascular basement membrane were detected. (bvsalud.org)
Path1
The Moon's path in 9°00'26.7"S, 35°13'36.0"W today. (timeanddate.com)
Oxygen2
Despite the change in altitude, the gases that make up the air around us remain the same: 20.93% oxygen (O2), 0.03% carbon dioxide (CO2), and 79.04% nitrogen. (irunfar.com)
This nested cross-sectional analysis used data collected as part of the Colorado Kids Sun Care Program, a randomized controlled trial assessing sun protection practices of parents to reduce skin cancer risk for their children (9). (cdc.gov)
Higher1
In Colorado, the rate of CM is 20% higher than the overall U.S. rate (3). (cdc.gov)
Effects1
Independent of if you are preparing for a running vacation in the mountains or a Hardrock 100 qualifier, the effects of altitude acclimation do not go unnoticed. (irunfar.com)