Archive for the ‘Science’ Category

Why I’m Voting Green on Saturday 21st August

Tuesday, August 17th, 2010

This coming Saturday, 21st August 2010 will be my first opportunity to participate in Australian democracy. My citizenship came through a few months after the last election, had I’d been able to vote then I’d have cast my vote for Labour and against John Howard.

However, with the Australian Labour Party (ALP) lurching to the right on a number of issues such as immigration, continuing the failed intervention in the Northern Territory, failing to legitimise same-gender marriage, and their crazy idea of mandatory Internet censorship combined with a new do-nothing strategy on climate change (“let’s hold a citizens assembly to tell us what to do, just like we did in 2008!”) means my conscience does not permit me to give them my first preference. They at least have some vision with the NBN, but that’s about it.

As for the Coalition, well they’re just laughable. A leader who doesn’t understand science or technology, policies that promise to deliver half the current speeds of ADSL2+, obscene exaggeration and fear-mongering about refugees coming in by boat (here’s some much needed facts on the matter), wanting to make bible classes compulsory in schools (I suspect aimed at the even more right wing Family First to whom they are directing preferences) and even worse policies on climate change and greenhouse gases. Even more FAIL than Labour. :-(

So, I’m voting Green because:

  • They want to enshrine basic human rights in law (Australia is the only western democracy without legal protection of freedom of speech)
  • They’re against the mandatory Internet censorship scheme
  • They take the science of climate change seriously, and the challenges it poses
  • They believe that people who love each other should be able to get married, irrespective of orientation
  • They wish to treat refugees as people, not some mythical threat
  • They understand free, open source software and use it themselves

Most importantly I’m voting Green because THEY WANT YOU TO THINK! Not just about their policies, or other parties policies, but to think about how you direct your preferences. Sure they have preference deals, but what most impressed me was when they were announced Bob Brown said:

I don’t like back room preference negotiations with other parties. In fact I’m sick of it. And I think that we should be very well aware here that voters can get misled into believing that they should put their preferences where the Labor party or the Liberal party or the Nation party or the Greens or somebody else says. No that’s not true. People have a right to put, and I think an obligation to think about it, and put their preferences where they want to. That’s what’s important.

Watch the video on that ABC news article to hear that, it’s sadly not in the text of the report. They also have the best election advert that never was – The Gruen Transfer has been getting two advertising agencies a week to do an advert each for a political party and this one won the week they did The Greens.

Now I’m not under any illusions that they’ll form the next government, but voting for them will send a signal that I’m not happy with either of the major parties, and they should (hopefully) get the balance of power in the Senate.

Petition to Keep Referrals to Social Workers and Occupational Therapists Eligible for Medicare in Australia

Sunday, August 1st, 2010

As a followup to my previous blog post there is now a petition (PDF) to ask the Australian Government to keep referrals to OT’s and social workers eligible for Medicare, which Donna has blogged about. If you do grab the PDF and print it out – and I would urge you to do so if you are in Australia, they need 10,000 signatures for it to be tabled – then please also have a covering note to explain why it’s so important. Donna writes:

WHY SIGN THIS PETITION?

1 in 150 people in Australia are diagnosed as having an autism spectrum disorder. 90% of adults on the autism spectrum have experienced bullying. Many are forced out of school early due to depression, anxiety disorders and breakdown. As adults those in this population will be significantly more at risk of social isolation, dislocation from their community, unemployment, and homelessness than the general population.

Around 1/3rd of adults on the autism spectrum will become diagnosed with additional mental health problems stemming at least in part from social disadvantage. When those developmental disabilities, including Aspergers develop mental health issues associated with long term unemployment, social isolation and community disconnection, Accredited Mental Health Social Workers are uniquely skilled to address their psychosocial issues and improve their quality of life in ways not addressed by Psychiatrists or psychologists alone.

With a 90% unemployment rate among even those most able adults on the autism spectrum, most are on income support. As such, if they require mental health services, most will be unable to access these services if not covered by Medicare funding. From 2011 the Government is going to cut Medicare funding for Social Workers and Occupational Therapists under “Better Access to Mental Health Services” Program. 10,000 signatures is required to try and change this by December 2010. Please add yours.

Click here to get the PDF of the petition to print and sign.

Social Workers and Occupational Therapists Disappearing off the Medicare Radar

Thursday, July 29th, 2010

It’s not making the news at the moment, but the proposed scrapping of the Medicare rebate for access to social workers and occupational therapists is going to cause a lot of pain to a lot of people. We have friends with Autism and Aspergers Syndrome who benefit from the support these people provide, support that helps these people get into jobs, to live independently or to understand how the world is working. As my own wife puts it:

As a person with autism, learning disabilities and mental health issues from a background of abuse and homelessness, a lot of my skills took years to acquire. I had had a lifetime of labels, Psych and Guidance, medicated by age 9, psychiatry since my teens. But it was a social worker who liased with my psychiatrist to get me – relatively illiterate, innumerate, itinerant and at risk – back into education. The psychiatrist took the credit but it was there I understood the very different jobs these people had in the area of mental health. The psychiatrist could medicate me, but the Social Worker had a more powerful medicine – practical plans and support to change, to save, a life.

When her first husband left after isolating her:

I had spent two years without practicing my self help skills. Agoraphobic, isolated, disoriented, I didn’t need a psychiatrist or medication. I needed practical hands on help in the home and the community to pattern me back into my life skills. That help came in the form of an Occupational Therapist. She helped me get back my strategies and the life skills these supported, helped me get my confidence back and helped me put supports in place for the things I needed help with. Within three months I was running my life as an independent adult, able to commute from home out into the community, even joining in community activities and looking after a cat.

Mental health often flies under the radar of journalists, but it is a significant health issue in Australia. Professor John Mendoza says:

Today, mental ill-health is the leading cause of death for all Australians under 45. More than car accidents. More than binge drinking. More than anything else. It is the leading cause of disability in Australia across all demographics. It affects more than 4 million Australians every year and is estimated to cost the Australian economy about $30 billion each year.

This decision isn’t yet set in stone, it is apparently due to be reviewed later this year but don’t wait for the election, please write and tell the current Health Minister why it is important to keep these services eligible for the Medicare rebate.

Federal Health Minister, Nicola Roxon,
1 Thomas Holmes Street
Maribyrnong Vic 3032,
Phone: 9317 7077.
nicola@nicolaroxonmp.com

Thank you.

Soliciting Australian Signatories to an Open Letter Against Software Patents to Minister Kim Carr

Wednesday, July 28th, 2010

The Melbourne Free Software Interest Group (a group of Melbourne computer folks with an interest in software freedom) have put together an open letter to Senator the Hon Kim Carr, the Minister for Innovation, to request that software be excluded from patenting as part of the Australian governments review of patents in general.

We are currently collecting signatures to the letter and if you are in Australia and of a like mind we would really appreciate it if you would contribute your signature too! Just click on the link, read the letter and the form to sign it is at the bottom of the page. Please also pass this on to others you know who may be interested.

Geeks versus Lawyers, or, China versus the US

Saturday, July 17th, 2010

Interesting take on why China may well dominate technology in the near future at BusinessWeek:

In China, eight of the nine members of the Standing Committee of the Political Bureau, including the Chinese president, Hu Jintao, have engineering degrees; one has a degree in geology.

Contrast that with the US:

Of the 15 U.S. cabinet members, six have law degrees. Only one cabinet member has a hard-science degree — Secretary of Energy Steven Chu, who won the Nobel Prize in physics in 1997, has a doctorate in physics. President Barack Obama and Vice President Joe Biden have law degrees.

Basically it comes down to political will and understanding on the part of the people with the power.

(Via the ever excellent InsideHPC)

New Records for Global Temperatures (from NOAA)

Saturday, July 17th, 2010

Two interesting statistics from the NOAA National Climate Data Center:

June 2010 was the fourth consecutive warmest month on record (March, April, and May 2010 were also the warmest on record). This was the 304th consecutive month with a global temperature above the 20th century average. The last month with below-average temperature was February 1985.

and:

It was the warmest January–June on record for the global land and ocean temperature. The worldwide land on average had its second warmest January–June, behind 2007. The worldwide averaged ocean temperature was the second warmest January–June, behind 1998.

Yes, those figures are for the whole planet.

Partial Lunar Eclipse Photo from Melbourne

Saturday, June 26th, 2010

Well despite the worst efforts of the weather (cloud and rain) I managed to get at least one decent photo of the partial eclipse with my new Nikon D90.

Photo of partial lunar eclipse from Melbourne, 2010-06-26

VLSCI Mid Year Call for Applications from Victorian Life Science Researchers

Friday, May 28th, 2010

A quick work related blog..

Today VLSCI announced its mid-year Call For Applications for use of the Peak Computing Facility at the University of Melbourne by life science researchers in Victoria. This includes time on our forthcoming IBM Blue Gene/P HPC system as well as the existing SGI Altix XE HPC cluster and a forthcoming IBM iDataPlex HPC cluster (both Intel Nehalem systems).

Pass it on!

Portable Hardware Locality (hwloc) Library v1.0 Released

Wednesday, May 19th, 2010

One of the things that us HPC folks tend to get hot under the collar about is hardware locality, basically making sure that your memory accesses are as fast as possible by optimising where on the system you’re getting memory from and making sure your process doesn’t get moved further away. Just binding your processes to the cores they are on can make for a significant speed up so it’s well worth doing. If you’ve just got a single socket, or a pre-Nehalem Intel x86 system then your path to RAM has been pretty much identical wherever you are so the only benefits are from not moving away from your CPU cache lines but on AMD Opteron, Nehalem, Itanic, Alpha, etc you really should care a lot more about locality for best performance.

The open source Torque queuing system (which I help out with) does some of this already, if you compile it with –enable-cpuset and have the /dev/cpuset virtual filesystem mounted then before it starts a job on a node it will create a cpuset for that (based on what cores have been allocated on the node) and then put the HPC processes into that cpuset. If you’re using Open-MPI 1.4.x and have the environment variable OMPI_MCA_orte_process_binding set to core then each of the MPI ranks will bind itself to one of the cores within that cpuset.

All good ? Well not quite as Torque is reliant on /dev/cpuset being there and being able to parse the contents of it and Open-MPI 1.4.x uses the Portable Linux Process Affinity (PLPA) library which, as its name suggests, is only for Linux. So the good Open-MPI people looked at their PLPA library and decided it needed extending and teamed up with the INRIA libtopology team who were working on how you discover the topology of various architectures and decided to merge the two projects together under the banner of the Portable Hardware Locality (hwloc) library.

The Portable Hardware Locality (hwloc) software package provides a portable abstraction (across OS, versions, architectures, …) of the hierarchical topology of modern architectures, including NUMA memory nodes, sockets, shared caches, cores and simultaneous multithreading. It also gathers various system attributes such as cache and memory information. It primarily aims at helping applications with gathering information about modern computing hardware so as to exploit it accordingly and efficiently.

The portable bit of the name comes from the fact that it works on Linux, Solaris, AIX, Darwin, FreeBSD, Tru64, HP-UX and Windows (though with limitations on some architectures – e.g. Windows – which don’t expose all the info it needs) and can extended for other OS’s if people feel they need to scratch that itch (OpenVMS anyone?). This release is also embeddable into projects (such as Open-MPI 1.5) and I have an interest in Torque picking it up to improve and extend its cpuset support.

Borthwick on Autism

Tuesday, May 18th, 2010

A very valid point..

Mathematically, if you analyse the DSM-IV definition (two from column one, one from column two, etc) and do the perms and combs, there are about sixty-five thousand different ways to be officially autistic before you begin to address spectrum-related measurements such as severity.

Reminds me of what Donna writes about..

Bear
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This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Australia.