Category Archives: Technology/innovation

Screen Time: How Much Is Too Much?

Unlocking Word Meanings

 今日の単語・フレーズ

Read the following words/expressions found in today’s article. 

screen n. the surface on which the image appears in an electronic display

essential adj. extremely important and necessary

data n. factual information (as measurements or statistics) used as a basis for reasoning, discussion, or calculation

zero-sum game phrase : a situation in which one person or group can win something only by causing another person or group to lose it : (Mathematics) (in game theory) a contest in which one person’s loss is equal to the other person’s gain

survey v. to ask (many people) a question or a series of questions in order to gather information about what most people do or think about something : ( n.) an activity in which many people are asked a question or a series of questions in order to gather information about what most people do or think about something

negative adj. harmful or bad : not wanted

delinquencyn. conduct that is out of accord with accepted behavior or the law

consume v. to use (fuel, time, resources, etc.)

correlation n. the relationship between things that happen or change together

interface n. a system that is used for operating a computer : a system that controls the way information is shown to a computer user and the way the user is able to work with the computer

Article

 ニュース記事

Read the text below.

Many children spend a lot of time watching or playing with electronic media – from televisions to video games, computers and other devices.

So, it is natural that parents should wonder about all the time children spend looking at a TV or computer screen. Americans say “screen time” when they talk about any time spent in front of an electronic device.

Perhaps parents should ease up on their concerns about screen time, at least for older boys and girls.

Until last year, the American Academy of Pediatrics (AAP) suggested that children and teenagers have no more than two hours of screen time a day.children-learning-888892_1920

The academy has since changed that advice.

In October 2016, the group’s members agreed on a policy statement called “Media and Young Minds.” In the statement, they listed a number of suggestions for parents and child care specialists.

Here are some of the suggestions.

  • “Avoid digital media use (except video-chatting) in children younger than 18 to 24 months.”
  • For children ages 18 to 24 months, choose “high-quality” media with your child. Avoid letting the child watch media alone. And avoid using media as a way to calm your child.
  • For children two to five years of age, limit screen time use to one hour of “high-quality programming” a day and watch it with your child.
  • For children ages 6 and older, limit time spent using media and the kinds of media. Also, make sure screen time does not take the place of healthy sleep, physical activity and “other behaviors essential to health.”
  • Make sure to have media-free times together as a family, such as dinner or driving. Also make some areas of the home media-free. Turn off your child’s electronic devices an hour before bedtime.

The AAP also suggests that doctors “educate parents about brain development in the early years” and the importance of hands-on, free play that builds language, thinking and social skills.

The group also suggests that parents balance a child’s screen time with other activities, such as getting enough sleep, exercising and doing homework.

However, some experts question claims that too much screen time is harmful.

Christopher Ferguson teaches psychology at Stetson University in the American state of Florida. He notes a lack of evidence supporting reports that too many hours spent playing video games or watching TV is truly harmful.

Still, Ferguson notes, many people believe that too much screen time is bad.

“So there’s always this kind of sense of there being a zero-sum game that the more time our kids are spending with screens, the less time they’re spending with academics, the more they’re getting exposed to all kinds of anti-social messages or objectionable messages that we would not like our kids to be exposed to.”

However, there are only so many hours in a day. If a child spends six hours a day watching a screen, that is six hours he or she could be doing other things, like reading, enjoying a sport, or simply staring up at the clouds.

Ferguson doesn’t dispute that those activities are important. He seems more interested in one idea: the link between video games and violent or risky behavior.

Ubisoft staff demonstrate the

Ubisoft staff demonstrate the “Far Cry 3” video game during a news conference in Los Angeles, California 2012. (REUTERS/Gus Ruelas)

When he saw results from a recent British survey on screen time, he wanted to know more.

The British study found a small negative effect — about a one percent increase — in aggression and depression among children who had six or more hours of screen time a day. He wanted to see if there was a similar effect among young people in the United States.

So, Ferguson and a team of investigators examined answers from a survey on risky behaviors. The study involved about 6,000 boys and girls in Florida. Their average age was 16. The U.S. Centers for Disease Control and Prevention developed the questionnaire.

Data from this 2013 survey found that American children are also fairly resistant to the negative effects of electronic media.

Among those who played video games, watched TV or worked on the computer up to six hours a day, the survey found:

  • a small increase in delinquency of half of one percent;
  • a 1.7 percent increase in signs of depression; and
  • a 1.2 percent negative effect on school grades.

The researchers found no increase in risky sex or driving behaviors, use of illegal substances or eating disorders. Ferguson adds that young people can have up to six hours of screen time a day without an increase in problematic behavior.

“Kids actually can consume a larger amount of media than we kind of thought in the past — up to six hours per day — without there being any kind of noticeable correlation with problematic behaviors.”

The researchers published their findings in the journal Psychiatric Quarterly.

The American Psychological Association created a task force to look at a possible link between video games and violence. In August 2015, the group issued a statementsaying it found that violent video games did lead to aggressive behavior in the player. It also said there is not enough evidence to prove that this link leads to “criminal violence or delinquency.”

Ferguson is openly critical of this APA study and others that link video game use and violence.

To further argue his point that screen time is not harmful, Ferguson adds that children should become familiar with screen technology. Electronic devices, he says, are a part of our everyday lives — from school to work to our personal lives.

To balance that statement, the American Academy of Pediatrics says that “parents should not feel pressured to introduce technology early.” The group adds that computer interfaces are very easy for children to learn. Give a child a new electronic device and most likely they will figure it out — easily.

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US Struggles in Race for Faster Internet Speed

February News

 

Unlocking Word Meanings

 今日の単語・フレーズ

Read the following words/expressions found in today’s article. 

  1. lag/ læg / [lag] (v.) – to be behind in terms of performance (遅れ)                                 Example: The company’s sales were lagging behind those of its competitors.

2. frantic ˈfræn tɪk / (adj.) – emotionally out of control; distressed; anxiety (必死の)                    Example: She was frantic with worry.

  1. drive / draɪv /(v.) – to inspire a certain behavior in someone                                           Example: Her ambition to become famous drove her to work hard.
  1. sluggishˈslʌg ɪʃ / (adj.) – slow                                                                                                          Example: The car was sluggish because of the heavy load it carried.
  1. devote/ dɪˈvoʊt / (v.) – give resources to (捧げる)                                                                         Example: Most of my time is devoted to my job
    .

Article

 ニュース記事

Read the text below.

The United States has dramatically improved its Internet speed, but is still lagging behind other countries in the worldwide race for the fastest Internet speed.

US average Internet connection speed rose from 10 megabits per second (mbps) in March 2011 to about 31 mbps in September 2014.  At the same time, average speeds offered by Internet service providers jumped, with Cablevision Systems Corporation offering 60 mbps, Verizon Communications and Charter Communications each offering 50 mbps, Cox Communications offering 40 mbps, and Comcast offering 35 mbps.

Tech giants offered the highest speed of 1000 mbps in varying areas, with Google Inc. making it available to nine cities and AT&T making it available to 20 cities, plus 36 more areas in 2016.  Comcast tested its own 1000 mbps service in Philadelphia and will offer the service in other areas by the end of 2016.

This frantic race was driven by consumer demand for higher speeds needed in downloading content and streaming videos. Much of Internet traffic in the United States – 60% according to the Federal Communications Commission – is devoted to video streaming. The figure could rise to 80% by 2019.

However, as fast as the country’s current average Internet connection speed is, it still remains sluggish compared to Internet connection speeds in other countries. In 2013, the United States placed 25th among 39 nations. Currently, it is still behind Canada, France, Germany, and Japan, but ahead of Brazil, Mexico, Chile, and Israel. Leading the race with a nationwide average download speed of 47.32 mbps is Luxembourg.

Viewpoint Discussion

 ディスカッションテーマ

Enjoy a discussion with your tutor Dannie. 

Discussion A

  • Is high-speed Internet widely available and affordable in your country? Why or why not?
  • What are the possible reasons why people want faster Internet speeds?

Discussion B

  • What are some disadvantages of spending too much time on the Internet?
  • Who do you think should spend money to speed up the Internet – the government or private companies?

Faster Internet Speed Possible with Li-Fi

February News

 

Unlocking Word Meanings

 今日の単語・フレーズ

Read the following words/expressions found in today’s article.

1. trump / trʌmp / (v.) – to do better than something                                                                                 Example: The new smartphone trumps all other similar devices in the market.

  1. reliance/ rɪˈlaɪ əns / (n.) – dependence on or trust in someone or something (依存)     Example: Your reliance on technology can be a disadvantage.
  1. brainchild/ breɪnˌtʃaɪld / (n.) – a product of one’s creative mind (発案物)                        Example: The lightbulb is the brainchild of Thomas Edison.
  1. exhibit/ ɪgˈzɪb ɪt / (v.) – to show or display (展示する)                                                             Example: The company exhibited its new laptop during the gathering.
  1. indisputable/ ɪn dɪˈspyu tə bəl / (adj.) – cannot be doubted ( 明白な)                                   Example: The professor’s contributions to physics are indisputable.

 

Article

 ニュース記事

Read the text below.

Internet speed of up to 100 times faster than current wireless fidelity (Wi-Fi) technology is now possible with light fidelity (Li-Fi) technology.

In a lab test, the new Li-Fi technology was able to send information at a top speed of 224 gigabits per second, easily trumping Wi-Fi technology’s top speed of 600 megabits per second. A Li-Fi-enabled lightbulb was used to transmit this information. This was achieved through Li-Fi’s reliance on the visible light spectrum, which is 10,000 times larger than the radio waves tapped by Wi-Fi.

In addition to its greater speed, Li-Fi also allows for more secure local networks, since visible light cannot penetrate obstacles like walls. It can also be used on aircraft because it does not interfere with radio signals.

Li-Fi is the brainchild of Professor Harold Haas of the University of Edinburgh [ED-n-bur-uh], who exhibited his invention at a Technology, Entertainment, and Design (TED) conference in 2011. Last year, the Estonian start-up company Velmenni tested the technology in offices and industrial settings in its capital Tallinn.

Although the technology’s greater speed is indisputable, it still has its setbacks. It cannot be used in direct sunlight, since sunlight would disrupt the signal. Also, because visible light cannot penetrate walls, the connection would be lost once a user leaves the room.

At the moment, visible light communication is only being tested by very few companies. Disney recently developed a toy magic wand that can switch on lightbulbs on a dress.  Professor Haas even pointed out the possibility of turning household LED lightbulbs into Li-Fi transmitters as a way of making the technology accessible to consumers. Velmenni CEO Deepak Solanki predicts the availability of the technology to consumers within three to four years.

 

Viewpoint Discussion

 ディスカッションテーマ

Enjoy a discussion with Dannie

Discussion A

  • Do you think most people in your country would be interested in Li-Fi? Why or why not?
  • What can be drawbacks to people having high-speed Internet?

Discussion B

  • What situations require secure Internet connection? Enumerate as many as you can.
  • How do you make sure your Internet connection is secure?