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Using their car radios and some tech savvy, the Luminous Voices chamber choir in Calgary found a way to sing together from a distance.

German Study of HFO and TFA Due in Early 2021 By Michael Garry, Jan 13, 2021, 14:17 • 5 minute reading Research project will focus on the refrigeration/air conditioning sector, amid growing industry concerns about the long-term environmental impact of TFA. When it escapes into the atmosphere, the HFO R1234yf – used widely in motor vehicle air conditioning and in food retail applications in blends with HFCs – lasts only up to two weeks. It then breaks down completely into trifluoroacetic acid (TFA), a highly durable and mobile substance. TFA descends via rainfall as a ...

is no solution that the state could use to address that problem? >> the existing solutions are perfectly capable of allowing this problem to be addressed, assuming it is a problem. >> but still about 20% of sales are going to kids. >> that is when they send in somebody 16 to test the system. there is no evidence that actual children are in fact disobeying their parents, bringing them into the home and playing them for years with their parents unaware of it. there is no evidence of that at all. >> could you have a law that dealers have to put the violent videogames in a particular are...

over the government regulation of business. in the roberts court, people care about about government regulation of business. when they care enough, then make a federal case out of it. pre-emption cases also indicate conflicts over how certain social problems are best regulated -- through to an agency paradigm, a regulatory paradigm, or two judges and common-law decision making? finally, pre-emption cases often arise when states take action with respect to hot-button issues of the day. for example, immigration reform. for all of these reasons, we have a lot of pre-emption cases. i do ...

recused, because it is his campaign manager who has a claim on his affections and loyalty. that is what this is about. i think kennedy is being consistent in being worried about this in both context. >> will you take the question? heather? >> what is interesting is the way it fits into the long- running court argument about this question, where both have expressed dimensions. the kennedy/scalia divide it goes very far back with protest votes. kennedy, the first amendment romantic, sees expressive dimensions to it. it gets the court tangled up. here i think scully it is -- scalia is b...