HON CHEMISTRY – I just love dots! Incredible job today with Lewis structures!! If you were absent, be sure and watch this vodcast for some great hints on making Lewis structures easier. And make sure you practice, practice, practice! Warning: before you know it, you’ll be seeing dots everywhere!
flickr photo by Spotted drum ♥ (on & off)
In my article “Concussions leave clues in the blood” by Aimee Cunningham, researchers led by Michael McCrea, a neuropsychologist at the Medical College of Wisconsin in Milwaukee, tested hundreds of college athletes blood. They uncovered three markers in the blood that appear to signal someone has been concussed, all of which are protiens. These 3 protiens were directly proportional to the number of times the athlete had ever been concussed, and have also been linked to brain damage.
My article”We may be on the brink of a coronavirus pandemic. Here’s what that means” written by Johnathan Lambert discusses the coronavirus. It talks about how COVID-19, the coronavirus, is on the brink of being classified as a pandemic. A pandemic is a world-wide spread of a disease. The coronavirus is very close to becoming classified as such because it has infected 2,700 people on every continent but South America and Antarctica. The last pandemic was in 2009 when the flu infected 1 billion people in six months.
My article is “Easily distracted? Training your brain’s activity could help.” In this article, it talks about how people can focus more by training their brain’s electrical activity. Scientists experimented and found that you can participate in certain activities that will weaken alpha waves in the left side of your brain. By doing this, it allows the right side of the brain to pay more attention and focus more.
The article I read is called, “Stress turns hair gray by triggering the body’s fight-or-flight response.” In this article, scientists talk about how they knew that gray hair was linked to stress, but they did not know exactly how stress made hair turn gray. A stem cell biologist at Harvard University named Ya-Chieh Hsu and some of her colleagues did an experiment by stressing mice and discovering that part of their immune system was actually depleting the pigment cells from hair. Overall, stress triggers the body’s fight or flight response, and causes the pigment-producing cells to go on overload. Once the number of those cells decreases, so does the color of hair. So, if there are no pigment cells, there’s no color either which makes hair gray.
My article “What Makes a Pretty Face?” talks about how, psychologically, we are more attracted to people. They tested whether we learn to prefer more attractive qualities in people as we get older or if we are born with that instinct. They showed babies attractive and less attractive people. The babies they tested ended up looking at the more attractive faces longer. They also tested the theory that we find people attractive who are similar to us. When people who had no exposure to Western culture and standards of beauty were shown pictures of people from their culture and another culture, they found the people from their own culture more attractive.
In my article “Explainer: What is a coronavirus”, Tina Hesman Saey explains to the reader what exactly a coronavirus is and how the virus acts within the body. The author explains that whenever this new virus enters the body, it first attaches itself to proteins that sit on the outside of lung cells. She explains that because the virus attaches to these proteins, it makes the virus much more deadly and serious because of how closely related it is to the respiratory system.