Monday, April 02, 2012

Teaching Computer Science in Schools


This topic is the subject of debate in England at present. There is a move away from focusing mainly on office skills (word processing, spreadsheets etc) and towards more on programming skills. The British Computer Society (BCS) has sent a package to schools outlining their proposal. While our programme is based on the CXC syllabus this package still contains much of interest to teachers and, may be, to CXC. Among those partnering with BCS in this are Google and Microsoft.
From the proposal:
"Although existing curricula for Information and Communication Technology (ICT) are broad and allow scope for teachers to inspire pupils and help them develop interests in Computing, many pupils are not inspired by what they are taught and gain nothing beyond basic digital literacy skills such as how to use a word-processor or a database."

Thursday, March 22, 2012

Broadband and GDP


A study conducted by Ericsson, Arthur D. Little and Chalmers University of Technology in OECD countries concluded that "increased broadband speed contributes significantly to economic growth". According to a report:

"A new report... quantifies the isolated impact of broadband speed, showing that doubling the broadband speed for an economy increases GDP by 0.3%."

"This growth stems from a combination of direct, indirect and induced effects. Direct and indirect effects provide a short to medium term stimulus to the economy. The induced effect, which includes the creation of new services and businesses, is the most sustainable dimension and could represent as much as one third of the mentioned GDP growth."

"These results have been derived using rigorous scientific methods where the direction of causality, data quality and significance levels have been appropriately tested..."

It is good to note that this is not just a correlation but that causality was considered too.

Also a similar report last year found "that for every 10 percentage point increase in broadband penetration GDP increases by 1 percent."

It would seem likely that recent economic growth in Guyana may be due, in some part, to recent progress in broadband penetration due to the roll-out of DSL by GTT, limited increases in broadband speed and probably rapid increases in cell phone penetration.

Friday, March 09, 2012

Voting over the internet?


Quoting from an article on Slashdot which is based on a report by University of Michigan Professor J. Alex Halderman, RCA panelist:

"Halderman acknowledges that voting in person, especially by electronic means, is far from foolproof, but he joins Jefferson in saying that online voting is categorically worse, and suggests that everyone who takes an interest in security or the mechanics of democratic elections raise the issues of privacy and security. His conclusion and advice for election officials in the U.S.: Voting online is a bad idea, and it simply can't be fixed in the foreseeable future. All the security problems of e-voting machines at polling stations apply directly to internet voting, too, which means that anyone on Earth can attack an online election. "

Tuesday, February 28, 2012

Climate change in the Amazon basin


Scientific American has an interesting review of a report in Nature describing climate changes in the Amazon area resulting from human activity. Clearly there could be similar effects here in Guyana, if the deforested areas here get large enough, and the climate changes in the central Amazon could also indirectly affect the weather in southern Guyana which is on the edge of the Amazon basin.
From the article:
"The dry season is growing longer in areas where humans have been clearing the trees... Multiyear and more frequent severe droughts, like those in 2005 and 2010, are killing trees that humans don't cut down as well as increasing the risks of more common fires (both man-made and otherwise)."
"The trees are also growing fast — faster than expected for a "mature" rainforest..."
"On the whole, cutting down trees so that the Amazon covers only roughly 80 percent of the land it once did seems to have tipped the rainforest from being a sink for global CO2 emissions to a net source, although this calculation remains highly uncertain, the scientists noted."

Saturday, February 18, 2012

A sustainable future?


A BBC news item on a recently released UN report entitled "Resilient People, Resilient Planet: A Future Worth Choosing " from the UN High-Level Panel on Global Sustainability reviews the report in some detail. Summarising it comments:

"Growing inequality, environmental decline and "teetering" economies mean the world must change the way it does business, a UN report concludes."

There are many recommendations (56), many of which are straight forward. Here are a few that stood out to the writer and looked relevant to us:


  • "Governments should accelerate the implementation of commitments to advance gender equality and women’s rights, including through the repeal of discriminatory laws and removal of formal barriers, the reform of institutions and the development and adoption of innovative measures to address informal and cultural practices that act as barriers.
  • Government and non-governmental entities should promote the concept of sustainable development and sustainable consumption, and these should be integrated into curricula of primary and secondary education.
  • Governments should work with appropriate stakeholders to provide citizens, especially those in remote areas, with access to technologies, including universal telecommunications and broadband networks, by 2025.
  • Measures should be taken to strengthen the interface between policymaking and science in order to facilitate informed political decision-making on sustainable development issues. Representatives of the scientific community could be included as members or advisers in relevant national or local bodies dealing with sustainable development issues."


And another noteworthy report, reported in a Wired news item, is the report "Towards a Circular Economy" by the Ellen MacArthur Foundation.

According to the news item:
"As the report states: "The essence of the circular economy lies in designing goods to facilitate disassembly and re-use, and structuring business models so manufacturers can reap rewards from collecting and refurbishing, remanufacturing, or redistributing products they make.""

Makes sooo much sense.