Sentences with phrase «less radiation in»

So why would there have been less radiation in the late 1600s when there were very few sunspots?

I'm no atmospheric scientist and haven't really considered the stratospheric cooling issue but, if an increase in the amount of atmospheric CO2 raised the average altitude from which the stratosphere receives radiation in the CO2 bands, wouldn't it receive less radiation in those bands?

Such a material could also allow heaters to maintain a constant temperature by emitting less radiation in cold conditions and more in hot conditions.

Not exact matches

In contrast, the typical, less efficient method of treating cancer uses combinations of surgery, chemotherapy and radiation to kill cancer cells.

@ED The only thing that is assumed to be at least more or less constant in evolutionary theory is the mutation rate of individual genes, and even that, since mutations are known, eg, to increase under higher radiation, is only true «on average, over the long run».

80 keV (125 times less than permitted) With additional safety aspects we furthermore guarantee the absolutely safe use of our X-ray systems in the inspection of products in the food sector: - We only use low - energy, soft X-rays - X-ray voltage and current are individually adapted for every product - The X-ray tube is hermetically shielded - All the radiation protection covers are monitored by safety switches - X-rays can only be turned on if the system functions perfectly

The new (Cordless Anti-Radiation Environment) technology in the SmartNova Baby Monitor achieves the same clear and private communication, while emitting 97 % less radiation and no pulsing radiation.

In the first study evaluating patient - reported cosmetic outcomes in a population - based cohort of older women with breast cancer, The University of Texas MD Anderson Cancer Center researchers found that less radiation was associated with improved cosmetic satisfaction long - terIn the first study evaluating patient - reported cosmetic outcomes in a population - based cohort of older women with breast cancer, The University of Texas MD Anderson Cancer Center researchers found that less radiation was associated with improved cosmetic satisfaction long - terin a population - based cohort of older women with breast cancer, The University of Texas MD Anderson Cancer Center researchers found that less radiation was associated with improved cosmetic satisfaction long - term.

In his call for practice change, Bekelman cites research showing the shorter radiation treatment — known as moderate hypofractionation — is just as effective at treating cancer, while costing less and easing the burden on patients.

Mild gastrointestinal and genitourinary toxicity as reported by doctors was observed more frequently in patients getting the higher daily dose, shorter frequency radiation, but no differences were observed in more severe side effects, which were rare (less than 5 percent) with either regimen.

While conventional quantum theory predicts that random quantum fluctuations in the early universe have left celestial imprints, pilot wave theory predicts fluctuations that are less random, leaving slightly different wrinkles in the cosmic microwave background radiation.

High - power gallium nitride - based high electron mobility transistors (HEMTs) are appealing in this regard because they have the potential to replace bulkier, less efficient transistors, and are also more tolerant of the harsh radiation environment of space.

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.

A single scan could diagnose the cause of foot pain better and with less radiation exposure to the patient than other methods, according to a study in the March 2015 issue of The Journal of Nuclear Medicine.

But that's still less than the radiation encountered in normal yearly exposure to X-rays.

Robert Finkelman, a former USGS coordinator of coal quality who oversaw research on uranium in fly ash in the 1990s, says that for the average person the by - product accounts for a miniscule amount of background radiation, probably less than 0.1 percent of total background radiation exposure.

Having a mass of only less than seven per cent of the mass of the Sun, they are unable to create sufficient pressure and heat in their interiors to ignite hydrogen - to - helium fusion, a fundamental physical mechanism by which stars generate radiation.

But calculations of the amount of ionized hydrogen in intergalactic space depend on the ionization rate for the background radiation, and a lower ionization rate would mean less ionized hydrogen.

(I was ready to order Demron underwear to protect the most vital of my vitals, but DeMeo explained to me that testicular cells stop actively dividing much earlier in life than breast cells, leaving the former much less likely to become cancerous due to radiation exposure.

The clumped matter absorbs less radiation than when it floated freely in space.

Rats, for example, have a difficult time navigating mazes and seem less interested in novel objects if they have been exposed to radiation.

I am actually getting less radiation here than I would on the beach or in an airplane.

During these two significant events, «the amount of radiation that reached the surface was less than that which would done if these aerosols had not been there,» Mª Ángeles Obregón, researcher in the Physics department of the University of Extremadura (UEx) and the University of Évora (Portugal) and lead author of this study, explains.

The general population in northeastern Japan, however, has considerably less access to accurate, non-invasive radiation dose measuring equipment, a troubling situation made more so by Wednesday's announcement by Japan's science ministry that small amounts of cancer - causing radioactive strontium have been detected in soil and plants outside the 30 - kilometer zone around the plant where the government has advised people to stay indoors.

The less reflected radiation, the more free radicals in the tooth.

The particles could have acted like a shield, blocking out the sun and preventing some radiation from evaporating water on the planet's surface, resulting in even less rainfall.

«Unstable chromosomes linked to less favorable response to radiation therapy and surgery in prostate cancer patients.»

Researchers in the field say future versions of this system could take clear x-ray photographs with cheap cameras — no need for lenses and multipixel detectors — and less cancer - causing radiation than conventional techniques.

Storm clouds play a big role in keeping the planet cool by reflecting heat back into space — but they're not as effective farther north or south, where there's less solar radiation anyway.

In fact, a typical coal - fired power plant exposes local residents to as many as 18 millirems of radiation yearly, whereas a nuclear power plant emits less than six millirems per annum, according to researchers at Oak Ridge National Laboratory.

In hip dysplasia cases, orthopaedic surgeons work with musculoskeletal radiologists to reduce the number of slices from a CT scan of the hip, from a typical 5 to 10 slices to only one or two, which may provide enough helpful information to ensure a successful surgery with less radiation exposure.

The response was proportional to radiation dose, and in the most contaminated regions, the leaf loss was 40 percent less than in control regions in Ukraine with normal background radiation levels.

While ultrasound provides a less expensive and radiation - free alternative to detecting and monitoring cancer compared to technologies such as X-rays, CT scans and MRIs, the lower clarity and resolution of ultrasound has limited its use in cancer treatment.

An individual's age also plays an important role in synthesising vitamin D from UV radiation, because the older one gets the less able one becomes to produce vitamin D: middle - aged adults have 66 % of the potential children have to do this.

On Titan, where solar ultraviolet radiation is much weaker and oxygen - bearing molecules are substantially less abundant, methane can last 10 million to 100 million years (which is still a short time in geologic terms).

Hence, in determining evapotranspiration there is a trade - off between less solar radiation and increased surface wetness, with the latter generally dominant.

The sizes of the proplyds are consistent with our calculation for FUV radiation from a B1 star, about 10 - 30 times less than that around the O star in the Orion Nebula Cluster.

Their research led to refinements in therapy that allowed certain patients, based on specific characteristics, to receive less radiation or forgo it altogether without increased risk of recurrence.

Interestingly, in B16F10 cells, it was observed that both ERK1 / 2 and AKT inhibition equally enhanced radiation - induced cell death, while inhibition of JNK did show radiation sensitization to a lesser amount.

The roles of other ecological interactions in shaping divergent phenotypes during such radiations have received less attention.

As I said, it also shelters life from radiation, but this is less of a concern in my mind.

Whether being lesser than CO2 in number of molecules in the atmosphere, methane is a potent greenhouse gas absorbing more infra - red radiation per molecule than CO2.

These technologies enable your care team to safely direct more radiation to cancer cells and less to nearby healthy tissues and in less time than many older technologies.

The size of the planet can also be estimated by looking at how much less radiation Earth sees from the star when a planet passes in front of it, according to a statement from the University of Bern.

Breaking the supermassive black hole speed limit — Using computer codes for modeling the interaction of matter and radiation related to the Lab's stockpile stewardship mission, scientists simulated collapsing stars that resulted in supermassive black holes forming in less time than expected, cosmologically speaking — in the first billion years of the universe.

So the mechanism should cause a decline in skin temperature gradients with increased cloud cover (more downward heat radiation), and there should also be a decline in the difference between cool skin layer and ocean bulk temperatures - as less heat escapes the ocean under increased atmospheric warming.

So with more carbon dioxide in the atmosphere, we expect to see less longwave radiation escaping to space at the wavelengths that carbon dioxide absorb.

Nutritional ketosis has received a lot of attention by cancer researchers in recent years, and many studies show it has great potential not just as a form of cancer prevention but also treatment — in combination with other treatments such as chemotherapy and radiation.16 Research is looking at whether non-toxic metabolic therapies and drug cocktails may be just as effective, with less toxicity.

Adrienne Scheck has shown that when applied with curative doses of radiation therapy, the ketogenic diet can make brain tumors vanish in mice.2 However, many dietary changes appear to blunt cancer growth in mice, 3 and the effects in humans are less clear.

In order to attempt to cure certain cancers, an intensive protocol will be ordered which usually requires outpatient radiation treatments for 16 to 20 days Palliative radiation therapy is a less intense protocol, and can be described as comfort care.