Sentences with phrase «radiation levels from»

Answer: Watch out, vehicles with high radiation levels from the area around Japan's Fukushima Daiichi nuclear plant were supposed to be destroyed, but are now being sold by unscrupulous dealers.

NASA's Curiosity rover tracked solar storm radiation levels from the Martian surface (Credit: NASA)

FULL - BLOWN FALLOUT Remnant radiation levels from nuclear testing near Bikini Atoll in the Pacific Ocean, as seen in this explosion in 1946, are far higher than previously predicted, new research shows.

New climate models — made by using estimated radiation levels from that time, along with data from the Magellan spacecraft about Venus's current surface — suggest that Venus would have been only 11 °C (52 °F).

Not exact matches

Radiation levels on the tour range from 15 to several hundred micro-roentgens per hour - in order for radiation to kill, a person would have to be exposed to between 300 - 500 roentgens an hour.

Researchers blasted rats with full - body doses of RF radiation (mostly at higher levels than those associated with cell phones) from the time they were born until they were two years old for nine hours a day.

These include adequate uranium supply (probably necessitating immense uranium strip mines in Tennessee), almost inconceivable reactor and waste - transport accidents, low - level radiation effects from normal plant operations, and the burden of guarding both radioactive waste and outdated but radioactive nuclear plants for thousands of years.

In fact, an important study in 1996 confirmed that children are exposed to higher levels of radiation from devices than adults.

A three - man team from the University of Bristol have devised a semi-autonomous, drone to help monitor radiation levels after nuclear accidents.

Furthermore, most of the radiation had accumulated on the leaves and could be washed off, suggesting that the plants were not absorbing dangerous levels of radioisotopes directly from the soil.

This study analyzed preserved tumor samples from 43 prostate cancer patients who later received radiation therapy after rising PSA levels were detected following a radical prostatectomy.

Now a team from Harvard Medical School, using electron cryomicroscopy (imaging frozen specimens to reduce damage from electron radiation), has for the first time revealed the structure of a VSV protein at the atomic level.

And while ozone high in the atmosphere helps shield Earth from the sun's ultraviolet radiation, at ground level, it mixes with fine particulates to form breath - choking smog.

This could reduce the time taken for stored waste's radiation levels to decay to safe levels from hundreds of thousands to a few hundred years.

The detector developed at UNH, known as DoSEN, short for Dose Spectra from Energetic Particles and Neutrons, measures and calculates the absorbed dose in matter and tissue resulting from the exposure to indirect and direct ionizing radiation, which can change cells at the atomic level and lead to irreparable damage.

And, aside from using high voltage and emitting low - level radiation, the machine has been deemed harmless.

But the health effects of chronic low - level radiation exposure over years or decades are far from clear.

When the team looked at the overall balance between the radiation upward from the surface of the ice sheet and the radiation both upward and downward from the upper levels of the atmosphere across all infrared wavelengths over the course of a year, they found that in central Antarctica the surface and lower atmosphere, against expectation, actually lose more energy to space if the air contains greenhouse gases, the researchers report online and in a forthcoming Geophysical Research Letters.

The US National Toxicology Program last week released some results from a two - year study in which more than 1000 rats were exposed to differing levels of cellphone radiation for 9 hours a day, for the whole of their lives.

A team from Fukushima University recently mapped radiation levels at 370 spots in the prefecture and, using weather balloons, confirmed that atmospheric radiation levels have dropped to near background levels.

The ongoing leaks from Japan's crippled Fukushima Daiichi nuclear power plant have raised concern that some workers and even the public could be exposed to dangerous levels of radiation.

Using data from NASA's Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission, Raeder and his Ph.D. student Shiva Kavosi (lead author) found that Kelvin - Helmholtz waves actually occur 20 percent of the time at the magnetopause and can change the energy levels of our planet's radiation belts.

This scans an area of wall and picks up varying levels of radiation emanating from it.

«Silicon - based transistors often suffer from high switching loss during power transmission and fail when exposed to extremely high temperatures or levels of radiation,» Liu said.

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).

Niels Bohr had shown in 1913 that an atom's electrons occupy different energy levels, and that falling from a high energy level to a lower one emits radiation.

Within the X-ray glow, Reeves and his colleagues discerned radiation emitted at energy levels associated with several specific elements, including magnesium, silicon, sulfur, argon, and calcium — a mix of ingredients similar to that cast out from a supernova explosion.

Because the fast - reactor waste would contain no significant quantity of long - lived transuranics, its radiation would decay to the level of the ore from which it came in several hundred years, rather than tens of thousands.

«It is important for healthcare professionals (including referring physicians, radiologists, and technologists) to be aware of radiation dose levels and risks from imaging tests for several reasons, including the ability to weigh the risks and benefits of tests, counsel patients on relevant risks, optimize protocols to minimize radiation dose, and select appropriate protocols to minimize radiation dose.»

Tests of water off the U.S. West Coast have found no signs of radiation from Japan's 2011 Fukushima nuclear disaster, although low levels of radiation are ultimately expected to reach the U.S. shore, scientists said on Tuesday.

The plants seem to be protecting themselves from Chernobyl's low - level radiation, says Hajduch, but no one knows how these protein changes translate into survival, or if they'll be passed on to the plants» offspring.

When an electron goes from the higher energy level to the lower it emits radiation of a precise frequency.

Levels of radiation in the study area ranged from 0.02 to 92.90 micro Sieverts per hour.

Using spectral readings from telescopes at the Keck Observatory in Hawaii, Hand has found high levels of oxidative chemicals such as sulfate, oxygen, sulfur dioxide and hydrogen peroxide on Europa's surface, which are produced as ionizing radiation from Jupiter scours it, splitting apart water molecules and sulfur compounds in the uppermost layers of its ice.

They were likely well adapted to lower and more variable levels of ultraviolet radiation from the sun than the new human arrivals from Africa were accustomed to.

Higher levels of ultraviolet radiation penetrating the Earth's dwindling ozone layer may be driving some species of frogs to extinction, according to researchers from Oregon.

In its «provisional idea» for acceptable levels of radiation in schoolyards, the education ministry cited a 2009 recommendation from the International Commission on Radiological Protection (ICRP), an Ottawa - based nongovernmental organization.

The problem with studying the effects of this fallout is that the world is bathed with naturally occurring low - level radiation, with sources ranging from long - distance air travel to plasma televisions.

As part of the Building a Better Explainer project at N.Y.U.'s Studio 20, we decided to create a visual explainer of radiation levels, inspired by some recent presentations over at XKCD and Information is Beautiful.Both compare radiation doses from everyday activities (like eating a banana or flying across the country) to doses near the Fukushima plant, as well as other disasters like Chernobyl.

Thus, a personal and portable device as the one developed by the Bioelectromagnetism Laboratory from CTB at UPM is essential to assess the mentioned levels of radiation.

Other work was intended to examine the link between radiation exposure and disease by measuring tissue levels of strontium - 90 and other elements; one strontium - 90 project, for example, examined bones taken from more than 3000 people between 1955 and 1973.

The Army's brochure for visitors assures us that radiation levels in the area are «very low,» ranging from 0.05 millirem near the parking lot to as much as 10 times that amount in the ground zero area.

Assessing the impact of any exposure to radiation in the environment may require cohort studies to look for a raised incidence of cancers years from now among people living in regions with raised levels of contamination.

They found that using the VASH collimator with an existing breast molecular imaging system, they could get six times better contrast of tumors in the breast, which could potentially reduce the radiation dose to the patient by half from the current levels, while maintaining the same or better image quality.

Ground - level ozone, which is distinct from the ozone in the upper atmosphere that protects the planet from ultraviolet radiation, is harmful to human health, exacerbating asthma attacks and causing difficulty breathing.

Thanks to UVB radiation from the sun, the average serum vitamin D levels are higher during the summer months.

After assessing the birds» antioxidant levels, amount of DNA damage, and body condition, the researchers were surprised to find that most of the birds, like the hawfinch pictured above, seemed to benefit from the chronic exposure to radiation.

They measure the frequency of radiation that makes an atom's electrons jump from one energy level to another.

Unlike ozone in the stratosphere, which benefits life on Earth by blocking ultraviolet radiation from the Sun, ground - level ozone can trigger a number of health problems.

Such material could be hidden inside a lead container, making the radiation levels leaking out too low for the Geiger counter to detect, or the guard might be 100 meters away from the source, allowing the intensity of the radiation to dissipate before it reaches the detector.