Sentences with phrase «from radiation increases»

For every hundred feet of altitude, the annual dose from radiation increases by 1 millirem per year.

Not exact matches

This consequence would follow from the increase in ultraviolet radiation allowed to penetrate through the upper atmosphere.

Whether you go to a tanning bed, get a tan indirectly by forgetting to wear sunscreen outside, or you're deliberately trying to increase your pregnancy glow - UV radiation from indoor tanning or outdoor tanning, is the leading cause of skin cancer.

It's found out that natural UV radiation from the sun may increase by about 25 % at the beach, as it is reflected by the water and yellow sand.

Lots of conspiracy theories about how the increase in radiation on the US west coast because of massive, continuing nuclear leakage from Fukushima is not being reported by the mainstream media.

Experts say the dose from the backscatter is negligible when compared with naturally occurring background radiation, but a linear model shows even such trivial amounts increase the number of cancer cases

For the 5 million people living in less contaminated areas of Ukraine, Russia, and Belarus, radiation from the meltdown is expected to increase cancer rates less than 1 percent.

The treaty has helped the layer begin the slow process of healing, lessening the impact to human health from increased exposure to damaging solar radiation.

According to previous simulations, UV - B radiation at the end of the Permian may have increased from a background level of 10 kilojoules (just above current ambient levels) to as much as 100 kilojoules, due to large concentrations of ozone - damaging halogens spewed from volcanoes (SN: 1/15/11, p. 12).

Hotspots of radiation from the nuclear disaster are still likely to cause localized, small increases in cancer risk, according to a new report by the World Health Organization

The recent declines and disappearances of many frogs, toads, and salamanders have been blamed on a number of causes, including pathogenic infection, pesticides, pollutants, increased UV radiation from ozone depletion, and local drought spurred by climate change.

The survey found that while most respondents recognized there is an increased risk of cancer from CT, many underestimated the actual radiation dose.

«It is likely that very few Americans will be killed directly, suffer radiation sickness, or even have a measurably increased risk for cancer from an attack,» Peter D. Zimmerman and Cheryl Loeb write in «Dirty Bombs: The Threat Revisited,» a report published by the Center for Technology and National Security Policy, National Defense University.

The scientists worked with model bacteria that are representative of the sort of microbial lifeforms that might be expected to have emerged on Mars and used a Raman spectrometer to track how the detectable signal from them changed with increasing exposure to radiation.

Given the revised timeline in this region, Willenbring and colleagues determined that the increased precipitation resulted from changes in the intensity of the sun's radiation on the Earth, which is based on the planet's tilt in orbit.

Since the jet originating from the centre widens with increasing distance, the gamma radiation is probably being generated very close to the black hole, i.e. quasi at the foot of the jet.

For example, the hazard of increased radiation exposure from charged particles released during a large solar flare could require that flights be diverted away from a polar route.

Scientists from ITMO University, Australian National University, Ioffe Physical - Technical Institute, University Medical Center Utrecht and Institute of Experimental Medicine RAMS demonstrated that the quality of MRI images could be substantially increased with the aid of metamaterials — artificial periodic structures that can interact with electromagnetic radiation in an extraordinary fashion.

The team concluded that the resulting drastic fluctuations in pH and ultraviolet radiation, combined with an overall temperature increase from greenhouse gas emissions, could have contributed to the end - Permian mass extinction on land.

Such clouds show a strong increase in cooling due to the reflected short waves, but that effect is partly cancelled out by the enhanced, trapped, long - wave radiation coming from underneath.

In 2014, Schwadron and his team predicted around a 20 percent increase in radiation dose rates from one solar minimum to the next.

Those data showed increased infrared radiation coming from several volcanic regions and was interpreted by a NASA - funded team as evidence that the rocks there formed from lava flows within the past million years — recently, on a geological timescale.

The increase in medical radiation exposure (from 0.53 mSv to 3.0 mSv) stemmed primarily from a rise in the use of computer tomography (CT) scans (which use x-rays to create cross sectional images of inside the body to spot tumors, clogged arteries, among other things), and nuclear imaging tests, which involve injecting radioactive chemicals into the bloodstream that can be picked up by special instruments and used to create images of the body's inner structures.

The results, said co-author and PNNL laboratory fellow Ruby Leung, «strongly suggest that increasing aerosol concentrations (particles, mainly soot and sulfur, that pollute the air) in the past has produced a fog - like haze that has reduced solar radiation (surface heat from sunshine), despite more frequent clear days that should lead to increased solar radiation.»

The longwave radiation from the cloud - free atmosphere can only increase due to increasing surface temperature or due to increasing greenhouse gases, who additionally close the window.

Although records are sparse, pan evaporation is estimated to have decreased in many places due to decreases in surface radiation associated with increases in clouds, changes in cloud properties and / or increases in air pollution (aerosols), especially from 1970 to 1990.

Reduce capacity to tolerate ultraviolet radiation and increased rates of bioerosion and greater damage from cyclones

By combining local radiation therapy and anti-cancer vaccines with checkpoint inhibitors, researchers from the University of Chicago, working with mice, were able to increase the response rate for these new immunotherapy...

Any increased exposure to radiation contributes to a cumulative theoretical lifetime risk, including flying on a plane, but the risk from a single x-ray is miniscule.

June 13, 2016 Radiation and vaccination can magnify effects of immunotherapy By combining local radiation therapy and anti-cancer vaccines with checkpoint inhibitors, researchers from the University of Chicago, working with mice, were able to increase the response rate for these new immunotherapy agents.

From the above experiments, it is clear that inhibition of either ERK1 / 2 or AKT activity equally increases radiation - induced cell death.

Researchers have found that treating patients who have early stage non-small cell lung cancer with a type of radiotherapy called stereotactic body radiation therapy is associated with a small but increased risk of death from causes other than cancer.

The ozone layer is crucial since it blocks out the harmful ultraviolet radiation from the sun known to increase the risk of skin cancer and cataract damage, in addition to other harmful effects on plants and animals.

We know from laws of physics and lab measurements that the CO2 levels have been increasing and that CO2 absorb infra red radiation.

If ozone doesn't return to normal levels, the risk of developing skin cancer and cataracts increases from the increased levels of UV radiation that will reach the Earth.

A compilation of surface measurements of downward longwave radiation from 1973 to 2008 find an increasing trend of more longwave radiation returning to earth, attributed to increases in air temperature, humidity and atmospheric carbon dioxide (Wang 2009).

The World Health Organization (WHO) estimates that the typical absorbed dose of mercury from amalgams is one to twenty - two micrograms per day, with most values in the range of one to five micrograms per day.16 Various factors, including gum chewing and bruxism, can increase these exposures to an upper range of about one hundred micrograms per day.7 Preliminary evidence also suggests that certain types of electromagnetic radiation, including EMR from mobile phones and from magnetic resonance imaging (MRI) may increase the release of mercury vapor from dental amalgams.17

According to Mark Sircus, in Transdermal Magnesium Therapy, a deficiency of magnesium increases free radical generation in the body and «causes glutathione loss, which is not affordable because glutathione helps to defend the body against damage from cigarette smoking, exposure to radiation, cancer chemotherapy, and toxins such as alcohol and just about everything else.»

In fact, while autophagy may help cancer cells avoid death from chemotherapy or radiation therapy, 7 the cellular pathways affected by intermittent fasting in the schematic from the last post (reference) happen to also increase cancer sensitivity to conventional treatment, like radiation therapy.

Glutathione can also offer protection from increased exposure to radiation through flying at high altitudes.

My own prediction is that, as temperatures fail to increase over the next five years, attention will turn to Ray Ladbury's «bite» — the resonant absorption of outgoing radiation by CO2 and H2O in the radiation spectrum viewed from space.

For example, they predicted the expansion of the Hadley cells, the poleward movement of storm tracks, the rising of the tropopause, the rising of the effective radiating altitude, the circulation of aerosols in the atmosphere, the modelling of the transmission of radiation through the atmosphere, the clear sky super greenhouse effect that results from increased water vapor in the tropics, the near constancy of relative humidity, and polar amplification, the cooling of the stratosphere while the troposphere warmed.

Furthermore while the increased radiation down from the layer will eventually (in equilibrium) warm the layers below enough to cause a matching increase in radiation upward from below, it is not true that this radiation will all be absorbed by (and warm) the layer.

A carbon dioxide molecule still absorbs infrared - red radiation and increases the earth's temperature whether it comes from increased ecomomic activity or not.

Second even if we ignore convection (and assume all warming of the atmosphere is from below, ie no incoming solar radiation is absorbed in the atmosphere) it is not the case that the atmosphere temperatures will «pivot» around some fixed level (increasing below it and falling above it).

Absorption of thermal radiation cools the thermal spectra of the earth as seen from space, radiation emitted by de-excitation is what results in the further warming of the surface, and the surface continues to warm until the rate at which energy is radiated from the earth's climate system (given the increased opacity of the atmosphere to longwave radiation) is equal to the rate at which energy enters it.

The question reduces to one of whether increasing CO2 will raise the «escape horizon» from which radiation can leave the Earth.

The point is that as long as greenhouse gases are reducing the rate of radiation from the land oceans and lower atmosphere, there may be no distribution of the net energy increase that results in good news.

The whole issue is that any level above what is often called the «effective radiating level» (say, at ~ 255 K on Earth) should start to cool as atmospheric CO2 increases, since the layers above this height are being shielded more strongly from upwelling radiation... except not quite, because convection distributes heating higher than this level, the stratosphere marks the point where convection gives out and there is high static stability.

As the atmospheric opacity is increased (e.g., 2xCO2), the physical location of the TAU = 1 level will rise to a higher altitude, but the outgoing flux will still come from the TAU = 1 level since radiation doesn't care about the geometric scale), and the TAU = 1 level will still correspond to the same temperature (since the solar input energy is unchanged).