Given a paragraph, generate a claim that is supported by the given paragraph. 1) The claim must contain information from within the paragraph. 2) A sentence within the paragraph can be used as a claim. 3) The claim should not have contradictions within the paragraph. 4) The claim should be at most one sentence long.
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Question: The story does a good job of describing the costs of angiopasty compared to a stress test. The story could have discussed out of pocket costs for patients. The story could have quantified the benefit of stress testing in its ability to avoid angiography and angioplasty associated with it. The story mentions missing cases of heart disease and difficulties of performing the test in older patients as potentional harms of stress testing, but there are other harms that the story should have mentioned. The story adequately describes the design of the current study and points out some important caveats inherent in a database-based study. The story does not exagerrate the seriousness or prevalence of stable heart disease. The story quotes multiple sources. The story mentions angiography as the alternative to stress testing. The story could have done more to describe the pros and cons of angiography compared to stress testing. Clearly stress tests are available. Clearly stress testing is not a new idea. Because the story quotes multiple experts, the reader can assume the story did not rely on a press release as the sole source of information.

Answer: More stress tests needed before angioplasties, study says


Question: The Antarctic Sabbatical , as the travel company is dubbing it, will give five people the opportunity to study how widely micro plastics have infiltrated the region. Over a month’s time in December, they’ll be trained in lab work in Chile, collect snow samples in Antarctica, climb key glaciers and even visit the South Pole. Scientist Kirstie Jones-Williams, who will be helping to train and guide the volunteer researchers, says the goal of the program isn’t to create more scientists, but moreso global ambassadors on the dangers of pollution and more. “The science itself that we’re doing isn’t enough,” she told The Associated Press in a recent interview. “Actually, one of the biggest threats to our sort of natural environment isn’t necessarily the lack of information that we have ... but it’s more the disenfranchisement that can occur with policymakers and apathy and eco-fatigue. “One of the main things is to get a bunch of people that can take the messages that we learn back to their respective countries,” she said. It’s the second offering in Airbnb’s sabbatical program, which offers its users a chance to take time to do more than see the sights but actually do some good. Earlier this year, Airbnb selected five people to spend three months in Grottole in southern Italy to help preserve the way of life in the town, which is in danger of disappearing. Airbnb’s Chris Lehane says both sabbaticals are part of the company’s larger goal of more eco-friendly travel and to raise awareness of tourism’s global footprint. “Airbnb is not going to solve climate change, but we all have a responsibility to do what we can and use our capacity to help take steps forward,” said Lehane, senior vice president of global policy and communications. “A lot of travel in the world takes place in and around big events,” he said. “Can we find ways when people are going to travel around these big events, to make them much more sustainable?” No scientific background is required to be selected for the Antarctic trip: However, a love of the environment and the ability to complete some of the physical tasks, such as collecting samples, climbing glaciers and enduring bitter cold, is paramount. “It is hard to work in cold environments so people that ... perhaps work well under pressure, work well when they’re tired, that’s actually quite key,” Jones-Williams said,” and to actually ask questions, and people that are really hungry to get as much as they can out of this experience. “It’s really people that kind of respect the scientific process,” she added. The five will stay in Airbnb’s in Chile for their training for about two weeks and will stay at a camp provided by Antarctic Logistics & Expeditions in Antarctica for about a week or so. Airbnb will partner with Ocean Conservancy to use the research for advocacy. Nick Mallos, a conservation biologist and ocean debris specialist for Ocean Conservancy, called it an “incredible opportunity,” and noted that the group has long worked with “citizen science volunteers” to help clean up the environment. “We’ve seen the power of when you train and empower individuals to perform science, they can generate invaluable information and data that ultimately then can form solutions,” he said. ___ Online: http://airbnb.com/sabbatical

Answer: Airbnb to train volunteers for science research sabbatical.


Question: Analysis of powdered samples drilled out from inside an ancient and once water-soaked rock at the rover’s Gale Crater landing site show clays, sulfates and other minerals that are all key to life, scientists told reporters at NASA headquarters in Washington and on a conference call on Tuesday. The water that once flowed through the area, known as Yellowknife Bay, was likely drinkable, said Curiosity’s lead scientist John Grotzinger, who is with the California Institute of Technology. The analysis stopped short of a confirmation of organics, which are key to most Earth-like life. But with 17 months left in the rover’s primary mission, scientists said they expect to delve further into that question. Science operations currently are suspended because of a computer glitch, which is expected to be resolved this week. Whether or not Mars has or ever had life, it should have at one time at least had organic compounds delivered to its surface by organic-rich comets and asteroids. Finding places where the organics could have been preserved, however, is a much trickier prospect than finding the environmental niches and chemistry needed to support life, scientists said. In May, following a one-month interruption of radio communications caused by the positions of Earth and Mars, scientists plan to drill a second hole into the Gale Crater rock to look for organic compounds. “If there was organic material there, it could have been preserved,” said David Blake, principal investigator for Curiosity’s Chemistry and Mineralogy, or CheMin, experiment. A lack of organics, however, would not rule out the Yellowknife Bay site as suitable for life, scientists added. “You don’t have to have carbon present in a geological environment that’s habitable in order to have microbial metabolism occur,” Grotzinger said. Some micro-organisms on Earth, for example, can feed on inorganic compounds, such as what are found inside rocks. “There does need to be a source of carbon somewhere, but if it’s just CO2 (carbon dioxide), you can have chemoautotrophic organisms that literally feed on rocks and they will metabolize and generate organic compounds based on that carbon,” Grotzinger said. Analysis shows the Gale Crater rock contains carbon dioxide, in addition to hydrogen, oxygen, phosphorus, sulfur and nitrogen. Carbon dioxide provides a key ingredient in the building blocks for life, all of which have now been found in the Mars rock sample, Grotzinger said. The $2.5 billion, nuclear-powered Curiosity rover landed inside the giant Gale Crater impact basin, located near the Martian equator, on August 6 for a two-year mission. Scientists were drawn to the area because of a three-mile (5-km) mountain of sediment, called Mount Sharp, rising from the crater floor. But shortly after the rover’s landing, the team decided to first explore the Yellowknife Bay area, located in the opposite direction from Mount Sharp. Observations from Mars orbiters showed three different types of terrain coming together in Yellowknife Bay, plus a low elevation, all hints that water could have once flowed and pooled on the surface. That hunch was verified with the first chemical analysis of material drilled out from inside what appears to be a slab of bedrock, named John Klein, after a mission manager who died in 2011. Scientists don’t know the rock’s age, nor how it formed. They suspect, however, that the John Klein rock is at least 3 billion years old and that it spent enough time in non-acidic and not-too-salty water for various telltale clays and minerals to form. “This rock, quite frankly, looks like a typical thing that we would get on Earth,” Grotzinger said. “The key thing here is this is an environment that microbes could have lived in and maybe even prospered in.”  The habitable conditions in Yellowknife Bay appear to roughly coincide within a couple of hundred million years of the first evidence for life on Earth. “On Earth, finding organics in very, very ancient rocks is a difficult proposition,” said Paul Mahaffy, principal investigator for Curiosity’s Sample Analysis at Mars, or SAM, instrument. Finding organics on Mars may be even more challenging. Without much protection from an atmosphere, ultraviolet and cosmic radiation can destroy organics. Mars also apparently is covered with chemicals, known as perchlorates, that consume organics. “The search for organic carbon is an issue for this mission and you want to do this as deliberately as possible. You don’t just want to wander around and try stuff out,” Grotzinger said. Knowing that Mars at least had the ingredients for life, however, makes the search for organics more viable. “This is not a simple problem, but I think the mission is up to it and we’re really excited to get started on that now,” Grotzinger said.

Answer:
Mars had the right stuff for life, scientists find.