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Is screen time safe for your children?

Friday, July 22nd, 2016

When you Google “children and screen time”, you will instantly be confronted with a wide range of strong opinions on the subject. As with most controversial issues, it’s best to consider all the facts and draw your own conclusions.

Screen time is defined by the National Library of Medicine (www.nlm.nih.gov) as “a term used for activities done in front of a screen such as watching TV, working on a computer or playing games.”

child-screenTechnology undoubtedly has its advantages. With the arrival of tablets, education became more accessible and affordable. A seemingly endless range of educational games and apps for children are available for parents to choose from. (See our article on best games for children)

According to a survey conducted on behalf of kids clothing retailer Vertbaudet.co.uk, four in five parents in the UK believe technology and gadgets are beneficial to their children. 

Clearly, many parents believe that technology is crucial to their child’s development and that it teaches coordination, concentration, communication skills and, of course, makes them tech-savvy. All of which is true.

Technology can be utilised for homework and in some schools, tablets are considered a necessity. Access to the internet and information has never been easier. But there’s always a “but”.

When technology purely becomes a means of entertainment to occupy a child with, it becomes a concern – on a psychological, as well as a medical level.  The UK survey, mentioned above, indicated that children, on average, are exposed to screens 17 hours per week. Time spent outside adds up to 8.8 hours – almost half of the time spent interacting with a screen. In the United States, children spend, on average, 5 to 7 hours per day in front of a screen.

The UK survey, mentioned above, indicated that children, on average, are exposed to screens 17 hours per week. Time spent outside adds up to 8.8 hours – almost half of the time spent interacting with a screen. In the United States, children spend, on average, 5 to 7 hours per day in front of a screen.

Watching a screen is a sedentary activity and utilises little energy. Minimal physical activity, combined with unhealthy eating habits, (because we eat more when we do screen watching) leads to obesity. 

Blue light emitted by digital devices interfere with the sleep-inducing hormone, melatonin. A lack of melatonin causes a change in sleep behaviour and difficulty sleeping. 

Constant exposure to an abundance of information and screens for long periods of time will lead to difficulty in concentration and an attention deficit disorder. This behaviour is beneficial for developing multi-tasking skills, but the ability to focus on one task at a time will not be learnt.

Anxiety, depression and screen addiction are all serious side-effects and may continue later in life. Just as with any other addiction, watching a screen alters brain chemistry. Dopamine, a neurotransmitter found in sugar and cocaine addictions, is also prevalent in screen addiction.

According to Psychology Today, studies indicate that extended exposure to electronic media might cause delayed cognitive development. During the early years of growth the brain’s frontal lobe, responsible for decoding and comprehending social interactions, is at a critical phase. If during this time, a child isn’t exposed to the necessary human interaction, the frontal lobe will not develop normally. This, in turn, will lead to the inability to learn to read social cues, facial expressions or empathise with people.

By no means do we suggest you immediately ban all electronic devices from your home. As with most things in life, moderation is key. With a few simple guidelines and rules, your children can still reap the benefits of technology.

Research suggests no screen time should be allowed for children under two years, as they are in a crucial developmental stage. One to two hours is recommended for children over two.

Instead of spending time in front of a screen, suggest hobbies, activities and playing outside, which will benefit physical development.

Other suggestions by the National Library of Medicine include:

  • Remove televisions and other electronic devices from the bedroom. 
  • No screen time during meals or homework.
  • No television as background noise. Rather switch on the radio.
  • No eating while watching television or using a tablet.
  • Keep track of time spent in front of screens.
  • Be a good parental role model by limiting your own screen time.
  • Challenge the family to spend one week without using their screens.

[SOURCES: http://www.pcadvisor.co.uk, https://medlineplus.gov, https://www.psychologytoday.com, http://screenfreeproject.co.nz/news/]

Video conferencing made easy

Thursday, June 9th, 2016

Vidyo-2How often have your attempts to set up a video conference been marred by locked conference rooms, double bookings, faulty equipment, incompatible systems and limited support? Even when it’s up and running, both video and audio quality are so poor, it’s practically useless.

TENET, the Tertiary Education Research Network of South Africa, has introduced a new video conferencing service, aimed at fulfilling the conferencing needs of the South African Higher Education and Research communities. Their chosen delivery platform for this service is Vidyo.

Vidyo is a video conferencing platform developed to address the problems of traditional video conferencing by integrating with existing video conferencing systems. This means that no upgrades for existing room systems are required, i.e. no expensive video conferencing hardware is needed.

Desktops and laptops can be used as video conferencing tools, as well as any tablet or smartphone. You can display conference participants and shared content simultaneously on a laptop or desktop screen. Vidyo automatically adapts to the hardware to deliver the best possible experience.  

The Vidyo client software is Windows, Mac OS and Linux compatible and VidyoMobile™ supports both Android and iOS devices. This means that you can participate in a conference from your smartphone or tablet on-the-go. Access is possible from anywhere, anytime – all you need is a webcam and internet enabled device.

Vidyo was used at the recently held National Telecommunication User Group (NTUG) Conference in Bloemfontein, allowing delegates from all over the country, who were unable to attend in person, the opportunity to participate online.

While Vidyo works well in normal and high bandwidth environments, it is also designed to operate when very little bandwidth is available. This makes it ideal if you’re on a slow connection. No more unintelligible conversations and blurry images.

Telephone bridging allows others to join your conference by phone and a recording and replay appliance allows recording of meetings. A large number of participants can be hosted, even if they use different brands of video conferencing equipment.

When it comes to video conferencing, the buzzword on everyone’s lips is collaboration. You can use this service to meet and consult instantly, share documents and images, exchange ideas and mentor and teach students.

The Vidyo service is available free of charge to all eligible academic and research institutions. We have created 46 Vidyo accounts of which 10 are used with existing video conferencing equipment on campus.

To use Vidyo, send an e-mail to telecom@sun.ac.za requesting a Vidyo account.

  1. You will receive an e-mail containing a link to the Vidyo client, as well as a username and password to access the service.
  2. Download and install the Vidyo client.
  3. Log in with the following details:
    VidyoPortal: http://sun-vc.tenet.ac.za
    Username: as specified by IT
    Password: as specified by IT

Useful links

TENET Vidyo Blog 
Vidyo Knowledge Center (Videos) 
Getting Started with Vidyo

[ARTICLE BY ANDRé ELMS]

Vidyo-2

Do you emoji?

Monday, April 25th, 2016

nerdEarly last week media company, Sony, announced that they will be releasing a movie about emojis in August 2017. We know that Hollywood will make a movie out of anything, but emojis? Are these little symbols such a large part of our daily life and online culture that they justify a full-blown movie?

Not too long ago, when online chatting and SMS’s caught on, people expressed their emotions with basic symbols made up of punctuation marks, for example :) :( or :P. These were called emoticons and according to the Mental Floss they first appeared in a magazine in 1881.

Emojis, on the other hand, were created around 1998 by Shigetaka Kurita, a Japanese economics student who worked for a cellphone operator. The word “emoji” comes from Japan and doesn’t have a connection with the “emotions”. The “e” translates to “image” and “moji” to “character”.

However, these symbols didn’t look the same on all platforms and devices they were used. In 2007 Google adopted emojis and because they had the same code points, they always displayed the same, whichever device or platform you used. 

 

From 2010 onwards, some emoji character sets have been incorporated into Unicode, a standard system for indexing characters, which has allowed them to be used outside Japan and to be standardized across different operating systems. A company called Unicode Consortium is now responsible for regulating emojis and approving new ones.

The Oxford Dictionary named 😂 (Face With Tears of Joy) its 2015 Word of the year. It also noted that 2015 has seen a sizable increase in the use of the word “emoji” and recognized its impact on popular culture. 

Around six billion emojis are sent on mobile messaging apps every day, according to Digiday, a media company that specializes in digital media. (http://www.cbc.ca) So if you’re still wondering how relevant emojis are in online culture, that should be a good indication.

Are you looking for some more emojis to use? Try www.iemoji.com or www.getemoji.com.

 

[SOURCES: www.wikipedia.org, www.nerdist.com]

 

Is texting killing language?

Monday, April 25th, 2016

“People have always spoken differently from how they write, and texting is actually talking with your fingers “, says John McWhorter, American academic, political commentator, and linguist. (watch his talk below)

 

According to McWhorter one can’t compare texting to actual language since they’re not the same thing. Texting has its own grammar and that’s okay, he says. Since ancient times written and spoken language have been different.

Just look at grammar in the classical texts. This is not how people spoke. Nor will they begin to speak or write in texting language. Or so McWhorter implies and believes “… there is no evidence that texting is ruining composition skills.”

Others don’t agree. The topic of texting language and especially students’ ability to write properly is a much-debated topic in school staffrooms, academic institutions and in media. 

In an article, “Flipping the Switch,” Kristen Turner tells how the informal electronic language is slipping into the work of students and that the quality of work has been degrading. Many a teacher and lecturer might be able to attest to this phenomenon.

Words are generally shortened due to the character limit of platforms like Twitter and of course, texts. Numbers replace letters because they are shorter. (for example 2, instead of too) More slang terms are used, for example, bae or on fleek. Punctuation is omitted, as well as capital letters. 

After surveying 2000 families, John Sutherland, professor emeritus at University College London, observed that 86% of parents do not understand most of the terms their children use in their electronic media. He therefore aptly refers to text language as “barbed wire for an older generation”. As soon as the older generation learns the language, the youth moves on and creates a new one. 

And then we have autocorrect. We no longer need to be able to spell. We have something that does the spelling (and typing) for us. It would be difficult to believe that all these factors do not have some influence on the writing skills of students.

A third group argues that text language is merely indicating that a language is growing and changing. David Crystal, author of Txtng: The Gr8 Db8, believes it adds another dimension to language.

What is your experience in the classroom with students or with your children at home? Should we be worried or are we being needlessly paranoid?

Selfie: Is it worth the risk?

Thursday, March 31st, 2016

We don’t bat an eyelid anymore when someone takes a photo of themselves in a public place. Selfie-sticks, aka  Naricissticks, have become the new normal.. Estimates of daily selfie posts range from one million to as high as 93 million on Android devices alone, according to Michael Weigold of the University of Florida. (http://businesstech.co.za

Yes, it’s sometimes irritating and obtrusive, but surely it’s just a bit of harmless fun?

Quite the opposite seems to be true in some cases.

In February tourists in Argentina removed an endangered baby La Plata dolphin from the sea to take pictures of themselves with it. The animal died from sheer trauma and heat exhaustion. 

In March a tourist dragged a swan from a lake in Macedonia to take a selfie. Again the animal died.

The selfie trend not only endanger the lives of animals, but also humans. (though some of these might qualify for the Darwin awards)

In 2015 Russia launched a campaign to warn its population against the dangers of selfies, called “A cool selfie could cost you your life.” The reason? Apparently an estimated hundred Russians have died trying to take photos of themselves in dangerous situations. This includes a woman shooting herself, two men blowing themselves up with a hand grenade and people taking pictures on top of moving trains.

India also has a rising selfie problem, with more citizens dying while taking selfies than any other country in the world. Mumbai now has “no-selfie zones.”

In Seville, Spain, a Polish tourist fell of a bridge while trying to take a selfie. In May of 2014 a Cessna pilot lost control of the plane and killed himself and all his passengers.

On Tuesday an Egyptian Airline plane was hijacked and a British man used the opportunity to take a selfie with the hijacker. He reckoned he had nothing to lose at that stage. Today another Brit had to be rescued from Britain’s highest mountain, Ben Nevis. She was trying to take a selfie on the mountain and was inadequately dressed for the cold conditions. More on selfie-related deaths on CNN.

What would drive a person to risk endangering himself for the sake of a “cool”photo? 

Maybe the need to constantly prove and compare ourselves to other people? Social media provides an easy platform where almost instant feedback and possibly approval is given. 

Michael Weigold of the University of Florida published an article in The Conversation, in which he explores this question. He also mentions research done by psychologist Gwendolyn Seidman.

Dr Seidman suggests that there is a link between narcissism and selfies and she bases her statement on two studies looking specifically at Facebook selfies. Read dr Seidman’s article in Psychology Today and decide for yourself. Also let us know what you think of selfies and why you think they are so popular?

 

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