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Interdisciplinary research

Quoting Rahul Siddharthan:

That is the value of interdisciplinary research: what is obvious to one community may be new to another, and the results may be far-reaching.

In the quoted post, Rahul gives an excellent summary about Markov chains and how it was used to conclude that the Indus valley script was indeed a script for a language. Both the posts discussing this recent Science paper by Rahul’s colleague Ronojoy Adhikari are worth reading.

And the original paper by Rao et al. is something I intend to read this weekend. Great stuff.

Get your child vaccinated

Here is a very sad case of an infant girl dying from preventable disease just two weeks before she was scheduled to get her first vaccine shot:

Or view it here.

There is a lot of chatter about vaccination and its now-debunked link with autism. There are a few pediatricians who believe in the vaccine-autism link. The question is that in such a situation, whom does one listen to. Well, one should listen to the experts, experts: the US National Institute of Health (NIH) and American Academy of Pediatrics.

There might be some who would argue that the decision to get their children vaccinated is parents personal decision. I mostly agree with that statement; hence there is a greater need to educate people on the benefits of vaccinations and risk associated with refusing vaccination.

The bigger issue, though, is that the unvaccinated kids do not live in an isolated environment. The fact that most of them are healthy is because of herd immunity, where vaccination of more than 90% of the population gives protection to the minority who did not or could not get vaccinated. One fear is that some communities may be fast reaching a tipping point, which could lead to a large number of preventable health problems or even deaths.

So, please get your children vaccinated.

Irrelevance of LTTE

Last week was a general bandh in Chennai, in support of Sri Lankan Tamils. While LTTE is in shambles, there did not seem to be much sympathy for it. From what I hear, a couple of decades ago, Adyar was one of the places very sympathetic to LTTE and its cause. Shekhar Gupta has an excellent analysis in his IE article:

At the peak of the IPKF operations in Sri Lanka in the winter of 1987, when the Indian army was still suffering more casualties than at any time during the war in Kargil, I had a conversation with then-Lt Gen (and later chief of army staff) Bipin Joshi, its director of military operations. “These LTTE people,” he said, “were just macho young people with no other purpose in life but to kill and die.” I thought, then, that it was in fact Gen Joshi’s remark that sounded so much like a macho soldier talking. […]
To me, in fact, it was the Indian army that had looked arrogant and macho to the extent of being imprudent. [I]t was our own army that had gone in under-prepared and under-gunned against a largely unknown enemy, had suffered initial setbacks and casualties, and Gen Joshi was calling the LTTE macho and irrational!
[…]

In this moment of the LTTE’s destruction and defeat you can’t but reflect on that. What kind of people take on an entire nation’s modern army, in the face of total worldwide opprobrium to their terrorist ways and unmindful of the plight of the Tamils whose cause they professed to be fighting for? Only people driven by violent madness, militaristic fascism, the suicide-bomber cult, for whom killing is not a means to the end, but the very purpose of living. Over two and a half decades, the LTTE has killed literally tens of thousands, a majority of them Tamil. They invented the human bomb and used one to kill the one man (Rajiv Gandhi) who staked his name and reputation and his country’s might and resources to find for their fellow Tamils a peaceful and just settlement. […]

For Prabhakaran, peace talks were just a cynical tactic to recover, regroup and rearm whenever the going got tough. […]

When the IPKF, under Lt Gen Amar Kalkat, had got the better of him decisively and controlled all inhabited areas, driving him into his Kilinochchi dugout (from which the Sri Lankans have just prised him out) he made common cause with President Premadasa, one of the cruellest and most pathologically anti-Tamil Sinhala leaders ever. […]

I once wrote a piece in this newspaper (‘To know courage…’, IE, August 1, 1999) describing how, of the 28 names that figured in my reporter’s notebook from my first Sri Lanka story in early 1984, only eight had survived. None of the 20 had died of natural causes. Most had been killed by the LTTE. Most were also Tamils. Most of them were also men of peace, fighting and campaigning for a better deal for their fellow Tamils. That piece was inspired by the killing by a human bomb that morning of Neelan Thiruchelvam, a middle-ground MP from Jaffna and a man of peace with a heart of gold; a man who only spread warmth, affection and generosity, and fought tirelessly not only for Tamil rights, but also for peace — which is why, in the LTTE’s penal code, he deserved capital punishment. The bomber threw himself on the bonnet of his car as I waited to join him for breakfast in the lobby of the Intercontinental. Yogeswaran and his wife Sarojini, Padmanabha and Yogasankari, Sam Thambimuthu and P. Joseph, all elected MPs from Tamil territories, all as Tamil as Prabhakaran or Vaiko or Karunanidhi, were assassinated by the LTTE for the same crime: questing for peace. Joseph, a most loveable man who wouldn’t harm an insect, was shot during Christmas mass in his native Batticaloa in 2005. There was nothing Prabhakaran hated more than peacemakers. They created dissonance, disruption in a world of murder and deceit. He was, indeed, macho, arrogant, irrational, fascist. If you don’t bow to me, I will send a teenager, a child, maybe a woman, with a bomb-belt, to embrace you. […] He eschewed a negotiated settlement at every stage.

(all emphasis mine; read the whole piece.)

That is exactly the feeling I got when I happened to strike a conversation with some guy on the bus while going for dinner. Mr. Gupta has a very important advise for the Sri Lankan and the Indian governments:

But it is also a time when Rajapakse’s government has to be firmly told to ensure his army does not make the mistakes victorious armies usually make. The Tamil population must be comforted so they can breathe freely after decades of LTTE subjugation, and assured that this war was as much about their own dignity and rights as about Sinhala pride and Sri Lankan national integrity. This is where India, now and after elections, has to play a key role, not in finding Prabhakaran and his last surviving thugs an escape or reprieve.

The “purchase” frustrations

Finally, on Friday, two desktops that I have been trying to order from Dell got installed. These are your run-of-the-mill desktops: Intel Core 2 Duo 3.0 GHz, 2 GB RAM, 160 GB Hard Disk, etc.; simple pieces of machine that cost less than Rs. 40K apiece. Here is the saga (with approximate timelines).

  • I got the quotation from Dell on August 16, 2008 and promptly placed my order thereafter.
  • Around September 3rd, I got a letter from the computer purchase committee that there were some issues with Dell products not meeting the specifications.
  • In the next week or so, I personally met some of the faculty who had issues (yes, real issues) with Dell.
  • It turned out that the issue was with Dell laptops and I could proceed with my desktop order. In the mean time, I got the quotation validity extended until 18th October
  • I placed another request with our stores around 1st October (perhaps earlier; it was before Gandhi Jayanti).
  • The stores finally released the purchase order (PO) on November 4th
  • About a week later the Dell representative confirmed that the PO was received. A month later, when I didn’t hear anything, I contacted the Dell representative. He informed me that they cannot honour the order because the quotation had already expired and the Rupee had depreciated by over 10% in the ten weeks since the quotation was first released. I reminded him that he could have told this to me right in November, thus saving a month of our time. [This was around the time my grandmom fell very ill, and died… so I couldn’t follow up on the order.]
  • He finally sent another quotation on December 18th. Our stores section again sat on the order for a month. The quotation expired again and I got it renewed on January 21st.
  • Our institute, placed another order in response to the older quotation on January 21st. Luckily for me, the new quotation was received at the right time that Dell could process the order.
  • On Feb 10th, the sales manager informed me that the representative in charge of my order quit his job, and left causing some problems in their system. Of course this was all verbal and I don’t have written documents to corroborate this statement. He asked me (this part via email) to send him a copy of the PO, so that he could process my order without further delay.
  • I sent that promptly, although it is not my business to do this for him. A few days later, he introduced me to another representative who will handle our case.
  • The Dell sales manager did not forward my email to the representative for almost two weeks. On Feb 23rd, I forwarded the PO again to the Dell representative.
  • In the mean time, we placed an order of 60 computers with Dell for upgrading our undergraduate computer lab. Believe it or not, in spite of all this trouble, Dell is still no worse than most other vendors.
  • When I spoke to them on March 19th, the order was still not placed due to technical issues. Essentially, being a government body, IIT-M does not have to pay Customs and Excise duty and there was some problem with that.
  • Finally the computers that I have been trying to order since September arrived in Chennai Airport on 1st April. The 60 desktops ordered in early March arrived a day earlier, on 31st March!
  • Thats not all. The Custom’s officer refused to honour the tax exemption certificate on some technical pretext. Since the Director is from our department, I requested our department head to look into the matter. I don’t know what happened then; the sixty desktops for the department got delivered on April 15th.

Finally, my desktops, the process for which I started on August 16th, 2008 were delivered in my office on April 20th 2009 and were installed on April 24th. This is the first post written using this desktop.

Easy Exams

I learn something new everyday. We just an exam this morning and I am sitting in my office grading papers.

This was an easy exam. About 50% of the problems were not something that one needs to wrack their brains on. For example: what is the temperature profile in a block of steel immersed in hot oil (repeated from last year); or asking them to describe “Least Squares Estimation” in an open book exam.

What I realised is that either they have not understood the subject matter, or the exam pressure is immense for them to be unable to answer a question, solution of which was discussed in class two days before the exam.

Did I tell you that this was an open book, open notes (with photocopied notes allowed) exam?

I ♥ Amanda Peet

I know this and 8-month-old video, but I just got to know about it now. Here is video of Amanda Peet’s interview on ABC’s morning show, where she argues why parents should get their children vaccinated and that vaccination-autism link is not supported by evidence. Money quote:

I am not a doctor. […] It seems that media is often giving celebrities and actors more authority on this issue than they are giving the experts. And thats a sad fact. And I know its a paradox, but that is why I wanted to become a spokesperson to say to people: “please don’t listen to me. Don’t listen to actors, go to the experts”.

She deserves her place in the 10 Skeptics Who Kicked Ass in 2008 list.

And here is a quote that Orac would love to hear from more and more people:

[…] Its hard to believe that when you take the Institute of Health, the CDC and American Academy of Pediatrics; virtually the entire medical community here and in Europe who are telling us that the vaccines are safe… its hard to understand why there is such rampant suspicion and a determination to mistrust those institutions when this is the most scrutinized medical product on the market.



After reading her name on the 10-skeptics list, I have no shame in admitting that I even watched the movie Fast Track on Zee Studio last week.

On Markets and Regulations

Quoting Joe Klein:

[W]hen it comes to actual goods and services–which hybrid automobile engine is best–the market is inevitably a better judge of quality than the government. But untrammeled markets, in which Ponzi products are traded back and forth, need to be policed and eliminated–and the government has an important, and necessarily intrusive, role in channeling us back toward a rock-solid foundation and away from the flim-flam that is choking us. That is where we stand now. That is what the bankers refuse to acknowledge, but it is what the public voted for last November.