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A portion of Interstate 95, one of the main shipping thoroughfare on the east coast, was shut down for hours on on Friday after two tractor trailers overturned on a Maryland bridge.The accident occurred on the Tydings Memorial Bridge, which spans the Susquehanna River in northwest Maryland in between Baltimore and Philadelphia.In addition to the closure of the bridge the Maryland Transportation Authority also put a hold on all traffic because of Friday's high winds.MDTA also temporarily closed the Hatem Bridge — which carries traffic on US 40 and runs parallel to the Tydings — because of the wind. Northbound I-95 detoured at MD 155 (Ex89) and southbound I-95 traffic detoured at MD 222 (Ex93). I-95 Tydings & US 40 Hatem bridges temporary closed for wind. Tydings has two overturned T/T crash response ongoing. #mdtraffic #MDOTnews pic.twitter.com/UYh4EWbwas— MDTA (@TheMDTA) March 2, 2018 949

A roundup of today's political headlinesPresident Trump to speak at United Nations General AssemblyTrump will speak before world leaders and diplomats Tuesday in New York.  He's expecting to face questions about Iran, North Korea and climate change."This will be a great week, we look forward to it, as far as North Korea is concerned, I think that most of you know how I feel," Trump said as he strode into the UN headquarters building on Monday.The speech will be a landmark foreign policy moment for Trump. The president will be joined at the General Assembly by Vice President Mike Pence, U.N. Ambassador Nikki Haley, and Secretary of State Rex Tillerson.Read more 681

A subject coughing in a cyclic incident. A qualitative examination of airborne droplet transmission with and without wearing a surgical mask. The top and bottom figures show the results at 2 s and 3 s, respectively. Wearing a surgical mask that exhibits an initial efficiency of ～91%. This cannot prevent the transport of the saliva droplets away from the subject. Many droplets penetrate the mask shield and some saliva droplet disease-carrier particles can travel more than 1.2 m. For visualization, the droplets were scaled by a factor of 600 compared to their actual size. The environmental conditions are zero wind speed, ambient temperature 20 °C, pressure 1 atm, and relative humidity 50%. The mouth temperature is 34 °C and the face skin temperature is 32 °C. 775

A subject coughing in a cyclic incident. Top view of airborne droplet transmission with and without wearing a surgical mask. The top and bottom figures show the results at 4 s and 5 s, respectively. We consider a surgical mask that exhibits an initial efficiency of ～91%. The cover does not prevent the transport of the saliva droplets entirely away from the subject. Many droplets penetrate the mask shield and some saliva droplet disease-carrier particles can travel more than 1.2 m. For visualization, the droplets were scaled by a factor of 600 compared to their actual size. The environmental conditions are zero wind speed, ambient temperature 20 °C, pressure 1 atm, and relative humidity 50%. The mouth temperature is 34 °C, and the face skin temperature is 32 °C. 779

A team at the University of Kentucky is researching a possible treatment for COVID-19 and key helpers are three alpacas; Big Boy, Blue Eyes and Emperor.“It’s a powerful technology that we have at UK (University of Kentucky) and it’s something that hopefully we can develop some therapeutics with,” said Wally Whiteheart, a professor in the Department of Molecular & Cellular Biochemistry.Alpacas, along with llamas and camels, make a special kind of antibody called a nanobody. Nanobodies can be useful in cancer research and for other diseases. Researchers, led by Whiteheart and fellow professor Lou Hersh, are working with a nearby ranch to see what impact alpacas could have on COVID-19.“We, in a sense vaccinate them, and this case with viral proteins, and we make nanobodies to those viral proteins,” explained Whiteheart. “We can then go and purify and identify the nanobodies that bind to the virus and then test them to see if they can inhibit viral infection.”Making the nanobodies is just the first step. The team will see which, if any, can block virus infection and those candidates could move on to clinical trials.There’s still a lot of research and testing to go, and also still a lot of hope.“The cool thing which we’re exploring now is the fact that you might be able to use them as a nasal spray and this actually gets them to the place where the virus is affecting lung tissue,” said Whiteheart.This isn’t the first time the trio of alpacas has helped medical research. Big Boy, Blue Eyes and Emperor have contributed to the university’s nanobody research for more than three years. In that time, they have helped researchers generate more than 50 nanobodies to target proteins involved in a variety of human diseases including cancer, diabetes and neurological disorders.This story was originally reported by Alex Valverde on LEX18.com. 1869