Monday 16 January 2012

Internet Addiction Alters Brains

by Jordan Richardson on January 12, 2012

 It’s not exactly news to suggest that we live in a society saturated with technology. Our dependency on it has, at least in some circles, become problematic and new research suggests that Internet addiction can change the brain in similar ways to alcoholism and drug addiction.
We already know that people can be addicted to their cell phones and smartphones (nomophobia) and we know that marketers are using our attachments to various devices (and our incessant need for more) as a way to get us hooked. It may be sensationalistic to refer to companies like Apple as drug pushers, but there certainly do appear to be some similarities when one considers the amount of frenzy some consumers experience when a “new” model is announced mere months after the “old” one was released.
It stands to reason, then, that the Internet and Internet users without an “off” button will feel effects as well.     
According to research from the Chinese Academy of Sciences in Wuhan, Internet addicts “may experience distress and withdrawal symptoms including tremors, obsessive thoughts, and involuntary typing movements of the fingers.” Hooked on a behaviour, any behaviour, can produce effects that can be just as physically damaging as those effects generated through addiction to drugs or alcohol.
Internet addiction is classified as an impulse control disorder and is said to impact an estimated five to 10 percent of users. Young’s Diagnostic Questionnaire for Internet Addiction adapted by Beard and Wolf is as follows:
  1. Do you feel preoccupied with the Internet?
  2. Do you feel the need to use the Internet with increasing amounts of time in order to achieve satisfaction?
  3. Have you repeatedly made unsuccessful efforts to control, cut back or stop Internet use?
  4. Do you feel restless, moody, depressed, or irritable when attempting to cut down or stop Internet use?
  5. Do you stay online longer than intended?
  6. Have you jeopardized or risked the loss of a significant relationship, job, educational or career opportunity because of the Internet?
  7. Have you lied to family members, a therapist or others to conceal the extent of involvement with the Internet?
  8. Do you use the Internet as a way of escaping from problems or of relieving a distressed mood (eg. feelings of helplessness, guilt, anxiety and depression)?
If participants answered to the affirmative to questions one to five and to the affirmative to at least one more question, they were classed as suffering from Internet Addiction Disorder.
The Chinese study examined the brains of 35 men and women between the ages of 14 and 21, 17 of which were classified as Internet addicts. In the brains of those classified as web addicts, MRI brain scans showed changes in “white matter” and disruption to nerve fibre connections. Similar findings were discovered in video game addicts, said Prof. Gunter Schumann, chair in biological psychiatry at the Institute of Psychiatry at King’s College.

The Technological Wonders of Google X

by Jeff Wiener on November 18, 2011

 In a world where many of our best minds are tasked with how to sell financial deregulation to Capital Hill and other under-handed Wall Street conundrums, it often seems like the futuristic world of flying cars and robot servants depicted in science fiction for the last half century will always remain just that…fiction.
But somewhere hidden in the San Francisco Bay area is a clandestine lab so top secret, so technologically advanced, that one cannot even fathom the futuristic delights hidden inside…or Google is simply inventing a longer lasting light bulb, who knows.
In a report issued by the New York Times, Google is rumoured to have established a highly secretive think tank in or around San Francisco, dubbed Google X, a place so secret that most Google employees didn’t know it existed until the NY Times report. So what’s hidden within the walls of Google’s futuristic laboratory? While the details remain a closely guarded secret, imagine a place where some of the greatest technological minds of our generation are asked to shoot for the stars, to dream big, and to conceptualize our technological future.
Piecing together just some of the rumours we’ve been hearing out of Google over the past few months, and it’s not hard to imagine the sorts of things happening at a site no secret that it’s been, for lack of a better name, dubbed Google X.
It’s a place where an Android powered refrigerator realizes that you’ve removed the last coveted can of Coke to help burn the midnight oil, and quickly orders some more; or where robotic cars shuttle people around from A to B, without worry of traffic jams or accidents; or where Google simply rules the world (it is a place where Google employees think big after all).
Or perhaps Google X is a place where the name Android takes on a more literal embodiment; where Asimov-esque robot butlers lay out your clothes and complete all those menial tasks that you couldn’t be bothered with, or a place where the first Roald Dahl-esque elevator to space is finally created.
While some of this seems far-fetched, the NYT report claims that all of these are among some 100 projects currently being undertaken at the top secret R&D site. In fact, the latter space elevator, which may seem like the most outlandish of all the ideas, is a project close to the heart of Google’s brain trust, developing the world’s first rocket-less cable connection with space, allowing information to be collected and various space related equipment to be transported without the need for conventional space vehicles.
Despite the fact that all of this remains rumours and conjecture, its good to know that there are companies out there interested in advancing the human race, committed to exploring the bounds of human ingenuity and imagination, and dedicated to making the technological future long confined to science fiction a reality for all of us…and then no doubt exploit its control over our lives for financial gain.

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Friday 6 January 2012

Make Sure System Restore is On

System restore allows you to “go back in time” to recover from a change that damages your Windows system. It takes “snapshots” of the Windows system at various time points, and holds them. You can basically “roll Windows back” to a previous time to get rid of any change that caused the problem.
From the Windows desktop, hold down the Windows key and press the Pause/Break key. This will open Windows System Properties. Click the System Restore tab. Uncheck the Disable System Restore box if it is checked.
Note: If you are using Windows Vista, System Restore is turned on by default.

Thursday 5 January 2012

Tuesday 3 January 2012

What Is RDF and Why Should I Care?

RDF IconIn a previous article we discussed how the Semantic Web is about making content easier for machines to interpret. This is accomplished in a number of ways including tagging content as structured data and defining content as linked data within the Linked Open Data cloud (LOD). RDF provides us with a framework to do both.
RDF stands for Resource Description Framework. This framework is used to represent data in the LOD cloud as an XML file, and is the basis for RDFa, a format used to mark up content as structured data for the Semantic Web.
This article provides a basic explanation of RDF and RDFa. Subsequent articles will demonstrate how to use RDFa to mark up your content as structured data and how to create static RDF files as a means for adding your content to the LOD cloud.
The following is a very basic explanation of how data is represented using RDF. For more detailed information check out the W3C's RDF primer.
As its name implies, RDF is a way to define resources using a specific framework. That framework is based on the concept of “triples.” Each resource is represented by a number of triples.
A triple consists of a subject, a predicate, and an object that mirrors a simple sentence structure like:

SUBJECT

PREDICATE

OBJECT

Deltina

[has the] Web site

http://www.deltina.com

Deltina

[is] employed at

http://www.plumbwebsolutions.com

Deltina

Knows

John Smith

John Smith

[is] also known as

http://www.DrWho.com

 
RDF triples take on the following forms:
  1. The subject is a URI (a type of link) identifying the described resource.
  2. The object can be a literal value like a text value, number, or date (“John Smith” in our example); or it can be the URI of another resource that is in some way related to the subject (“http://deltina.com” in our example).
  3. Like a basic sentence structure, the predicate indicates what kind of relationship exists between the subject and the object, such as a name or date of birth (in the case of a literal, i.e., not a link) or an employer or someone the person knows (in the case of another resource represented by a link). The predicate is also a URI, but predicate URIs come from established vocabularies—collections of URIs that are used to represent information about a broad topic. For example:

    Using these vocabularies and the RDF standard, XML files are generated to classify Web content in a consistent way. When added to the Linked Open Data cloud, the content then becomes an integrated part of the “cloud” available to link to other content that is classified using the same vocabularies.
    What about RDFa?
    RDFa is RDF in attributes. What this means is that RDF triples can be used directly within XHTML and HTML to mark up content as structured data. Note: Though RDFa attributes can be used within HTML, they do not currently validate.
    As an example, Google has developed its own vocabulary for use with RDFa. Using this vocabulary, you can mark up your HTML content so that Google will recognize it as structured data and display it in their search results as “Rich Snippets.”
    Understanding the concept of triples as described above is paramount to using RDF and RDFa successfully. In upcoming articles we will demonstrate how to use RDF files and RDFa to prepare your content for the Semantic Web.
    Author: Deltina Hay


 

Monday 2 January 2012

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