NASA satellites spot young star in growth spurt

Agencies
December 19, 2018

Washington, Dec 19: An adolescent star in the midst of a dramatic growth phase has been observed with the help of two NASA space telescopes.

The youngster belongs to a class of stars that gain mass when matter swirling around the star falls onto its surface, NASA said in an official statement on Wednesday.

The star belongs to a class of fitful stars known as FU Ori's, named after the original member of the group, FU Orionis (the capital letters represent a naming scheme for variable stars, and Orionis refers to its location in the Orion constellation).

The in-falling matter causes the star to appear about 100 times brighter.

Typically, these stars, which are less than a few million years old, are hidden behind thick clouds of dust and hard to observe.

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News Network
June 30,2020

Bengaluru, Jun 30: Karnataka Chief Minister BS Yediyurappa on Monday launched 'Skill Connect Forum' and said that the government is committed to provide impetuous to creating jobs by reviving economic and industrial activities.

The 'Skill Connect Forum' portal connects both private entrepreneurs and job seekers on the same platform.

After launching the forum, the Chief Minister said that the portal provides information on jobs available and who needs a job. "Under this forum, an unemployed will be imparted skills and then enabled to get a job," Yediyurappa said.
Besides providing jobs via registration, the portal also provides a skilled pool of people for those looking to hire, he added.

Deputy Chief Minister Dr CN Ashwath Narayan, who is also the Skill Development Minister said that portal will be a boon to the youth seeking jobs and it will avoid unemployment issue to a great extent.

"All these years, there was no information and communication between job seekers and recruiters. The portal will solve that problem," he said.

Narayan said that there was no proper information on skilled workers and job market. Moreover, skill development was not in sync with the market. All these issues have been addressed by the portal, he added.

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Agencies
June 10,2020

US dictionary Merriam-Webster will update the meaning of the word "racism" after being contacted by a Missouri black woman, who claimed the current definition fell short of including the systematic oppression of people of colour, according to media reports.

"A revision to the entry for racism is now being drafted to be added to the dictionary soon, and we are also planning to revise the entries of other words that are related to racism or have racial connotations," according to a statement of the 189-year-old dictionary shared by Kennedy Mitchum, a recent graduate of Drake University in Iowa, on her Facebook.

Mitchum, 22, emailed the dictionary last month, following the death of African American George Floyd in the custody of four Minneapolis police officers, Xinhua news agency reported.

"I kept having to tell them that definition is not representative of what is actually happening in the world," Mitchum told CNN. "The way that racism occurs in real life is not just prejudice, it's the systemic racism that is happening for a lot of black Americans."

Merriam-Webster's first definition of racism is "a belief that race is the primary determinant of human traits and capacities and that racial differences produce an inherent superiority of a particular race."

"It's not just disliking someone because of their race," Mitchum wrote in a Facebook post on Friday. "This current fight we are in is evidence of that, lives are at stake because of the systems of oppression that go hand-in-hand with racism."

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News Network
July 24,2020

Melbourne, Jul 24: Home-made cloth face masks may need a minimum of two layers, and preferably three, to prevent the dispersal of viral droplets associated with Covid-19, according to a study.

Researchers, including those from the University of New South Wales in Australia, noted that viral droplets are generated by those infected with the novel coronavirus when they cough, sneeze, or speak.

As face masks have been proven to protect healthy people from inhaling infectious droplets as well as reducing the spread from those who are already infected, several types of material have been suggested for these, but based on little or no evidence of how well they work, the scientists said.

In the current study, published in the journal Thorax, the researchers compared the effectiveness of single and double-layer cloth face coverings with a surgical face mask (Bao Thach) at reducing droplet spread.

They said the single layer covering was made from a folded piece of cotton T shirt and hair ties, and the double layer covering was made using the sew method described by the US Centers for Disease Control and Prevention (CDC).

The scientists used a tailored LED lighting system and a high-speed camera to film the dispersal of airborne droplets produced by a healthy person with no respiratory infection, during speaking, coughing, and sneezing while wearing each type of mask.

Their analysis showed that the surgical face mask was the most effective at reducing airborne droplet dispersal, although even a single layer cloth face covering reduced the droplet spread from speaking.

But the study noted that a double layer covering was better than a single layer in reducing the droplet spread from coughing and sneezing.

According to the researchers, the effectiveness of cloth face masks is dependent on the number of layers of the covering, the type of material used, design, fit as well as the frequency of washing.

Based on their observations, they said a home made cloth mask with at least two layers is preferable to a single layer mask.

"Guidelines on home-made cloth masks should stipulate multiple layers," the scientists said, adding that there is a need for more research to inform safer cloth mask design.

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