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US-European ocean monitoring satellite launches into orbit – CP24 Toronto's Breaking News

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VANDENBERG AIR FORCE BASE, Calif. – A U.S.-European satellite designed to extend a decades-long measurement of global sea surface heights was launched into Earth orbit from California on Saturday.

A SpaceX Falcon 9 rocket carrying the satellite blasted off from Vandenberg Air Force Base at 9:17 a.m. and arced southward over the Pacific Ocean. The Falcon’s first stage flew back to the launch site and landed for reuse.

The Sentinel-6 Michael Freilich satellite was released from the second stage about an hour later. It then deployed its solar panels and made first contact with controllers.

Named for a former NASA official who had a key role in developing space-based oceanography, the satellite’s main instrument is an extremely accurate radar altimeter that will bounce energy off the sea surface as it sweeps over Earth’s oceans. An identical twin, Sentinel-6B, will be launched in 2025 to ensure continuity of the record.

Space-based sea level measurements have been uninterrupted since the 1992 launch of the U.S.-French satellite TOPEX-Poseidon, which was followed by a series of satellites including the current Jason-3.

Sea surface heights are affected by heating and cooling of water, allowing scientist to use the altimeter data to detect such weather-influencing conditions as the warm El Nino and the cool La Nina.

The measurements are also important for understanding overall sea level rise due to global warming that scientists warn is a risk to the world’s coastlines and billions of people.

“Our Earth is a system of intricately connected dynamics between land, ocean, ice, atmosphere and also of course our human communities, and that system is changing,” Karen St. Germain, NASA’s Earth Science Division director, said in a pre-launch briefing Friday.

“Because 70% of the Earth’s surface is ocean, the oceans play an enormous role in how the whole system changes,” she said.

The new satellite is expected to have unprecedented accuracy.

“This is an extremely important parameter for climate monitoring,” Josef Aschbacher, the European Space Agency’s director of Earth observation, told The Associated Press this week.

“We know that sea level is rising,” Aschbacher said. The big question is, by how much, how quickly.

Other instruments on board will measure how radio signals pass through the atmosphere, providing data on atmospheric temperature and humidity that can help improve global weather forecasts.

Europe and the United States are sharing the $1.1 billion (900 million euro) cost of the mission, which includes the twin satellite.

Associated Press journalist Frank Jordans contributed to this report from Berlin.

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Many Canadians gaining weight during COVID-19: poll – Medicine Hat News

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By Maan Alhmidi, The Canadian Press on November 24, 2020.

People work out at an outdoor gym in downtown Montreal, on Friday, Nov. 6, 2020. A new poll suggests many Canadians are gaining weight because they’re eating more and exercising less during COVID-19 pandemic. THE CANADIAN PRESS/Paul Chiasson

OTTAWA – A new poll suggests many Canadians are gaining weight because they’re eating more and exercising less during COVID-19 pandemic.

Nearly one-third of respondents in the survey conducted by Leger and the Association for Canadian Studies said they have put on weight since March, compared to 15 per cent who said they lost weight over that time.

As well, about one-third of respondents said they’re exercising less, while 16 per cent said they’re working out more since the first wave of the pandemic landed in Canada in the spring.

Jack Jedwab, president of the Association for Canadian Studies, suggested that one reason may be a rush for comfort food to deal with pandemic-related anxieties.

Respondents in the survey who said they were “very afraid” of COVID-19 were more likely to report gaining weight, eating more and exercising less.

“The more anxiety you have, the more likely it is that you know you’re eating more,” Jedwab said.

“People who are least anxious about COVID (are) the ones that are not eating more than usual and are not gaining weight.”

The online survey of 1,516 Canadians was conducted Oct. 29-31 and cannot be assigned a margin of error because internet-based polls are not considered random samples.

Dr. Yoni Freedhoff, an associate professor of family medicine at the University of Ottawa, said there are plausible reasons to connect weight gain or loss with the pandemic, but he hadn’t seen any studies to convince him that’s the case.

Some people are “not reliant on restaurants constantly” and “cooking more frequently in their homes,” which Freedhoff said may be leading to weight loss or better dietary choices. Others are eating more, he said, relying on comfort food “because they’re anxious as a consequence of the pandemic, or the tragedies that have gone on in their lives.”

Jedwab said the country needs to also be mindful of mental health issues that can affect the physical health of Canadians.

“With the winter coming, it’ll be even more challenging, in some parts of the country, to maintain a healthy lifestyle in terms of walking, in terms of doing basic things that will help us address our anxieties,” he said, pointing to lack of access for some to gyms subject to local lockdowns.

Some of those exercise classes have gone online. Gabriel Shaw, a kinesiologist from Victoria, B.C. said he has offered virtual classes to give his clients an chance to be physically active.

Shaw said the classes don’t provide people with a sense of community like in-person classes, which he said is important for some people to exercise consistently.

“The best bet for people is to find a way they can enjoy it. That might be going out for a social distance walk or hike or run or bike with a friend,” Shaw said. “That might be finding a Zoom thing that you can get on like dancing or even other activities where you have friends.”

Shaw said people should also try learn a new skill like dancing, yoga, rock climbing, or take up running to keep things fresh and enjoyable, which is key to exercising long and well.

This report by The Canadian Press was first published Nov. 24, 2020

– –
This story was produced with the financial assistance of the Facebook and Canadian Press News Fellowship.

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Alberta researcher gets award for COVID-19 mask innovation – CTV News

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Salt that crystallizes with sharp edges is the killer ingredient in the development of a reusable mask because any COVID-19 droplets that land on it would be quickly destroyed, says a researcher who is being recognized for her innovation.

Ilaria Rubino, a recent PhD graduate from the department of chemical and materials engineering at the University of Alberta, said a mostly salt and water solution that coats the first or middle layer of the mask would dissolve droplets before they can penetrate the face covering.

As the liquid from the droplets evaporates, the salt crystals grow back as spiky weapons, damaging the bacteria or virus within five minutes, Rubino said.

“We know that after the pathogens are collected in the mask, they can survive. Our goal was to develop a technology that is able to inactivate the pathogens upon contact so that we can make the mask as effective as possible.”

Rubino, who collaborated with a researcher at Georgia State University in Atlanta to advance the project she started five years ago, was recognized Tuesday with an innovation award from Mitacs. The Canadian not-for-profit organization receives funding from the federal government, most provinces and Yukon to honour researchers from academic institutions.

The reusable, non-washable mask is made of a type of polypropylene, a plastic used in surgical masks, and could be safely worn and handled multiple times without being decontaminated, Rubino said.

The idea is to replace surgical masks often worn by health-care workers who must dispose of them in a few hours, she said, adding the technology could potentially be used for N-95 respirators.

The salt-coated mask is expected to be available commercially next year after regulatory approval. It could also be used to stop the spread of other infectious illnesses, such as influenza, Rubino said.

Dr. Catherine Clase, an epidemiologist and associate professor of medicine at McMaster University in Hamilton, said the “exciting” technology would have multiple benefits.

Clase, who is a member of the Centre of Excellence in Protective Equipment and Materials in the engineering department at McMaster, said there wasn’t much research in personal protective equipment when Rubino began her work.

“It’s going to decrease the footprint for making and distributing and then disposing of every mask,” she said, adding that the mask could also address any supply issues.

The Public Health Agency of Canada recently recommended homemade masks consist of at least three layers, with a middle, removable layer constructed from a non-woven, washable polypropylene fabric to improve filtration.

Conor Ruzycki, an aerosol scientist in the University of Alberta’s mechanical engineering department, said Rubino’s innovation adds to more recent research on masks as COVID-19 cases rise and shortages of face coverings in the health-care system could again become a problem.

Ruzycki, who works in a lab to evaluate infiltration efficiencies of different materials for masks and respirators, is also a member of a physician-led Alberta group Masks4Canada, which is calling for stricter pandemic measures, including a provincewide policy on mandatory masks.

This report by The Canadian Press was first published Nov. 24, 2020

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Alberta researcher wins award for salt-coated mask innovation – CBC.ca

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Salt that crystallizes with sharp edges is the killer ingredient in the development of a reusable mask because any coronavirus droplets that land on it would be quickly destroyed, says a researcher who is being recognized for her innovation.

Ilaria Rubino, a recent PhD graduate from the department of chemical and materials engineering at the University of Alberta, said a mostly salt and water solution that coats the first or middle layer of the mask would dissolve droplets before they can penetrate the face covering.

As the liquid from the droplets evaporates, the salt crystals grow back as spiky weapons, damaging the bacteria or virus within five minutes, Rubino said.

“We know that after the pathogens are collected in the mask, they can survive. Our goal was to develop a technology that is able to inactivate the pathogens upon contact so that we can make the mask as effective as possible.”

Rubino, who collaborated with a researcher at Georgia State University in Atlanta to advance the project she started five years ago, was recognized Tuesday with an innovation award from Mitacs, a Canadian non-profit. Mitacs receives funding from the federal government, most provinces and Yukon to honour researchers from academic institutions.

The reusable, non-washable mask is made of a type of polypropylene, a plastic used in surgical masks, and could be safely worn and handled multiple times without being decontaminated, Rubino said.

The idea, she said, is to replace surgical masks often worn by health-care workers, who must dispose of them after a few hours. Rubino said the technology could potentially be used for N-95 respirators.

The salt-coated mask is expected to be available commercially next year after regulatory approval. It could also be used to stop the spread of other infectious illnesses, such as influenza, Rubino said.

‘Exciting’ technology 

Dr. Catherine Clase, an epidemiologist and associate professor of medicine at McMaster University in Hamilton, said this “exciting” technology would have multiple benefits.

Clase, who is a member of the Centre of Excellence in Protective Equipment and Materials in the engineering department at McMaster, said there wasn’t much research in personal protective equipment when Rubino began her work.

“It’s going to decrease the footprint for making and distributing and then disposing of every mask,” Clase said, adding that the mask could also address any supply issues.

The Public Health Agency of Canada recently recommended non-medical masks consist of at least three layers, with a middle, removable layer constructed from a non-woven, washable polypropylene fabric to improve filtration.

Conor Ruzycki, an aerosol scientist in the University of Alberta’s mechanical engineering department, said Rubino’s innovation adds to more recent research on masks as COVID-19 cases rise and shortages of face coverings in the health-care system could again become a problem.

Ruzycki, who works in a lab to evaluate infiltration efficiencies of different materials for masks and respirators, is also a member of the physician-led Alberta group Masks4Canada, which is calling for stricter pandemic measures, including a province-wide policy on mandatory masks.

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