Sleep Struggle

     One in every five young people has a sleep problem, so you're not alone. Getting enough sleep has become as important as eating vegetables and exercising regularly. It's very important for your body.

     Most young people only get seven hours of sleep each night, when they actually need nine hours. And making up for lost sleep during the week by sleeping on weekends doesn't really work. In fact, sleeping late on weekends may actually do you more harm than good, if you have sleep problems.

     What happens if you don't get enough sleep? If your sleep problem continues for a few nights, you could suffer serious problems. Lack of sleep can affect learning and memory. Worse, if your sleep difficulties last a long time, that could lead to anxiety (焦虑). Therefore, you've got to have some healthy sleep habits. Below are some suggestions:

     •Go to bed at the same time—including weekends, if possible.

     •Wake up around the same time every morning. When you sleep late just one morning during the week, it may disturb your body clock. This will make it hard for you to sleep that night.

     •Do something relaxing before going to bed.

     •Exercise during the day. Don't exercise right before going to bed.

     •Avoid drinking. Alcohol (酒精) makes you excited. This prevents you from falling asleep or wakes you up during the night.

     •Don't smoke. Smoking is always bad for the body. Smoking before bedtime keeps you awake.

     If trying these tips over a couple of weeks does not help you, speak to your doctor. Do not take any medicine without first asking your doctor. Many of them have strong side effects.

Look into hunters' eyes

    Have you ever been face to face with a cat or a sheep? If you have,you probably noticed that cats narrow their eyes to vertical (垂直的) slits (狭缝),while sheep have horizontal pupils (瞳孔).

     Why is the difference?

    Scientists from the Universities of California Berkeley and Durham in Britain may have the answer. Their research, published recently in the journal Science Advances, suggested that pupils' shapes could tell whether an animal is a hunter or gets hunted.

    The researchers took a close look at the eyes of 214 land animals.The challenge was to see if they could find a relationship between an animal's role in the food chain and the pupils' shapes.

    They found a pattern. Species with pupils that are vertical slits are more likely to be small ambush predators (捕猎者) – creatures that lie in wait for their lunch.In contrast,those with horizontal pupils are more likely to be plant-eating prey (猎物) species.

    Evolution chose the arrangement for a good reason.For hunters such as household cats,it appears that vertical pupils not only improve their ability to keep track of moving objects like mice,but also maximize (使最大化) their ability to judge the distances of the animals they hunt.

    However, an interesting discovery from the study is that the slit pupils are mostly linked to hunters that are close to the ground. Therefore, bigger cats who actively hunt down their prey, like tigers and lions, don't have slit pupils.

    On the other hand, for plant-eating prey animals, horizontal pupils give them a wider field of vision.When stretched (伸展) horizontally,the pupils allow for more light to enter from the front, back, and sides. Meanwhile, they also limit the amount of light from the sun above so the animal can see the ground better.“ Once they do find a predator,they need to see where they are running,” said leading researcher Martin Banks,a UC Berkeley professor of optometry (视光学).“They have to see well enough out of the corner of their eye to run quickly and jump over things.”

    But what happens when they bend down to eat? Researchers checked this by watching prey animals in the Oakland Zoo in California, US. They believe that when goats lower their heads to eat,their eyes rotate (旋转) to keep their pupils horizontal.

    So it seems that the eyes are indeed the window to the soul!

    Basketball Statistician Help Wanted

    The Athletic Department is looking for students to assist staff during the Fall 2016, Winter 2016-17 and Spring 2017 semesters. Students in this position will be keeping live statistics during basketball games. Students must meet all of the following requirements:

    Good computer skills

    Available evenings and weekends

    Knowing basketball rules and statistics

    Students interested in working for the Athletic Department should contact the Athletic Coordinator at their respective(各自的) campuses.

    TP/SS Athletic Coordinator, Michael Simone,240-567-1308

    Rockville Athletic Coordinator, Jorge Zuniga,240-567-7589

    Springfield Athletic coordinator, Gary Miller,240-567-2273

    Germantown Athletic Coordinator, GavriChavan, 240-567-6915

    While the start of a new school year is always exciting, this year was even more so for some elementary school students in Auckland, New Zealand. They became the world's first kids to be "taught" by a digital teacher. Before you start imagining a human-like robot walking around the classroom, Will is just an avatar that appears on the student's desktop, or smartphone screen, when ordered to come.

    The autonomous animation platform has been modeled after the human brain and nervous system, allowing it to show human-like behavior. The digital teacher is assigned to teach Vector's "Be sustainable with energy" — a free program for Auckland elementary schools.

    Just like the humans it replaced, Will is able to instantly react to the students' responses to the topic. Thanks to a webcam and microphone, the avatar not only responds to questions the kids may have, but also picks up non-verbal cues. For instance, if a student smiles at Will, he responds by smiling back. This two-way interaction not only helps attract the students' attention, but also allows the program's developers to monitor their engagement, and make changes if needed.

    Nikhil Ravishankar believes that Will-like avatars could be a novel way to catch the attention of the next generation. He says, “I have a lot of hope in this technology as a means to deliver cost-effective, rich, educational experience in the future.”

    The program, in place since August 2018, has been a great success thus far. Ravishankar says, " What was fascinating to me was the reaction of the children to Will. The way they look at the world is so creative and different, and Will really captured their attention." However, regardless of how popular it becomes, Will is unlikely to replace human educators any time soon.

    I was disheartened recently when I turned on the news to hear a story about a family who is petitioning (请愿) the Hampton School Board to receive out-of-district compensation to place their daughter in an out-of-district school due to racial bullying. I was disheartened because I know that even if this family wins their petition, the root of the problem will still continue.

    While there are many contributing factors to the rapid increase of the bullying, I believe that the root of this problem lies within the restrictions of schools, or rather the teachers and administrators who allow bullying to happen while feeding the line "We have a no-tolerance policy" to students and parents.

    This family can move their daughter to a new school where she will feel safe to learn and grow, but they will leave behind the problem of the educators at this school who let the racial bullying happen.

    My son went to a private school in Concord. He was bullied on the play yard. The administration gave us the "No tolerance" line, but did nothing to stop the bullying or change the climate of the school.

    We pulled our son out of this school and placed him in another school. This school truly understands how to guide students' acceptance of differences and embrace teachable moments so that bullying is a non-issue.

    I truly hope that this family gets the out-of-district placement for their daughter. However, I am doubtful that the school district will address the root of the problem.

    Shakespeare's Birthplace and Exhibition of Shakespeare's World

    Welcome to the world-famous house where William Shakespeare was born in l564 and where he grew up. The property (房产) remained in the ownership of Shakespeare's family until 1806. The House has welcomed visitors travelling from all over the world, for over 250 years.

    Enter through the Visitors' Centre and see the highly-praised exhibition Shakespeare's World, a lively and full introduction to the life and work of Shakespeare.

    Stand in the rooms where Shakespeare grew up.

    Discover examples of furniture and needlework from Shakespeare's period.

    Enjoy the traditional English garden, planted with trees and flowers mentioned in the poet's works.

    The Birthplace is within easy walking distance of all the car parks shown on the map; nearest is Windsor Street (3 minutes' walk).

    The House may present difficulties but the Visitors' Centre, its exhibition, and the garden are accessible (可进入的) to wheelchair users

    The Shakespeare Coffee House (opposite the Birthplace).