I was captivated by the beauty of winter. I saw these awesome shaped crystals of water on the windshields of cars in the morning. They're like the snowflakes I used to see on Cartoon Network as a child. I also took a second picture of the quad in front of Earle Hall on which I saw that the part of the lawn that was in the shadow of Earle hall still had frost, but the part that the sun could reach was defrosted.
Tuesday, December 9, 2008
While others were being counseled
I was captivated by the beauty of winter. I saw these awesome shaped crystals of water on the windshields of cars in the morning. They're like the snowflakes I used to see on Cartoon Network as a child. I also took a second picture of the quad in front of Earle Hall on which I saw that the part of the lawn that was in the shadow of Earle hall still had frost, but the part that the sun could reach was defrosted.
A future full of whiners
Saturday, October 11, 2008
An ecosystem of my own
I have missed two trash days in succession. Consequently, I had tonnes of rubbish at home which had begun to attract the attention of flies. In an attempt to avoid being busted by health and safety officers, I moved the rubbish bags outside and kept them on the landing of the stairs. The stairs overlook the garden. I did this three days ago.
Today, I noticed a spider web adjacent to the rubbish bags (it is indicated by the arrowin the picture to the left). It struck me that I had created an awesome bait for the spiders. Sensing the trash bags, some moronic fly would probably zoom towards it. Unfortunately for it, his velocity would be abruptly brought down to zero by the subtly woven spider web between the two bars of the railing right in front of the garbage. The aftermath needn't be mentioned.
I must say, however, that I did that old spider a bit of a favour when I put the rubbish out. To me, this is another instance of the chaos theory; I hadn't even dreamed that I'd create a sort of micro-ecosystem through my simple act of putting the garbage out. I love the complexity of our world.
Hmm...I don't suppose my actions were particularly heart warming for the moronic flies, though.
Indian Genomic Variation Database
Basically, they're mapping genes of pharmacological and medical significance and keeping track of the different haplotypes and Single NucleotidePolymorphisms (SNPs) in the Indian population. They find pretty vital things about the population's response to drugs. For example, they found that 13% of the North Indian population is unresponsive to 30 of the major drugs used by doctors.
Such discoveries could pave the path to tailor-made treatments and should, probably, lower the medical expenses for the Indian people. Obviously, if they know that they're resistant to a particular expensive drug, they won't waste their time and money trying it out in ignorance.
This project shall have an impact on things ranging from Asthma to Malaria. I'm really quite excited by this. For some reason, I used to harbour the idea that molecular biology doesn't have much of an application in improving rural health in India. I suppose I'll have to rethink my beliefs now.
Monday, September 1, 2008
ICAR
ICAR. No, that’s not a new Apple product. It is the acronym for the international conference on Arabidopsis Research. I have been attending it since Wednesday (
We drove for seven hours to
When we got into
For some bloody weird reason, the hotel had 6 floors and from the 6th floor, you could take another escalator to floors 1-17, completely different from the ones we had just encountered. Anyhow, we managed to find our way around and after an ice-cream (for which we paid US dollars and got canadian dollars instead)., we went in for the first talk. This talk is by a guy who you consider to have no life since he established my weed as a model genetic organism. It was spectacular. He talked about how ethanol is not the future due to its inefficiency and how we can use other crops and processes to manage our energy requirements. It was fascinating, particularly, because if I do a Ph.D, then this is one of the fields I would consider working in. Anyway, we have set up our posters and found our way to the McGill residence hall. Honestly, this hall looks amazingly like a hotel. My room-mate is an asian post-doctoral chap called Mingje Chen. I didn't want to ask if he was from
The highlight of the conference, for me, was a meeting with Dr. Malcolm Bennett who works in the
All in all, it was a fantastic trip. I learned tonnes and it was nice to add another country to my “visited list”. I think I am also in a better position, now, to decide whether I want to do a pure Ph.D or not.
Sunday, July 20, 2008
Ganga Mata (Mother Ganges)
I was quite appalled when I read the Economist's article about the crappy state of the Ganga (no pun intended). Sewage is being discharged into it without treatment and corpses are flung into the river with religious fervour. Basically, we Indians (esp. Hindus) manage to mess up the river throughout our lives and even after death. The image to the left is from an organisation called the Eco-Friends. They monitor the pollution in the Ganga and have written an admirable report about it. I applaud their efforts.
Do allow me to shock you. The coliform density (density of E.coli bacteria from human intestines) is 12000 times above the safe limit. Last year, 3000 corpses were floating around in the Ganga. This is an illegal practice. Electric crematoria have been set up to avoid this source of pollution. and there are stretches in which the river is actually Black! Millions of Indians are dependent upon this river for their domestic and their spiritual needs. Yes, the situation is indeed ghastly.
The government of India has put in 600 million dollars into the Ganga and the Yamuna, but nothing seems to have transpired yet. The irony is that the government is intent on using electric sewage treatment units. That's a joke in our country of power-cuts. Luckily, no matter how messed up a country is, its gravity usually functions well enough.
That's Mr. Veer Bhadra Mishra's plan. Units that use gravity treatment techniques are cheaper and better options for our country. The scientific Mr. Mishra drinks a glass of turbid, fetid water from the Ganga out of devotion every day. He knows that the water is dangerous and has already suffered from many water-bourne diseases. Less scientific Indians along the Ganga's coast do the same. Doctors tell them to boil the water to make it safer. Think about it, these chaps don't have enough fuel (read cow dung cakes) to make one meal a day. Do you suppose they'll waster their fuel on boiling water? This is why diarrhoea, jaundice, and cholera wreak havoc in our country. Something needs to be done.
One of the few good things that has happened is that the centre has given a directive to the Uttar Pradesh (one of the states of India through which the Ganga flows) govt. to check out Mr. Mishra's proposal. His work had been disrupted previously in 1998 when the sanctions by the US put paid to funding for his experimental gravitational sewage treatment plants. I hope India rallies and supports him. There seems to be light at the end of the tunnel and it's hopefully not the fiery breath of a dragon.

I found a few websites that you may want to look at.
http://www.abc.net.au/rn/science/earth/stories/s183185.htm
http://www.serverhostingmantra.com/eco/reports/default.htm
http://www.serverhostingmantra.com/eco/reports/05217foreigners.htm
(It's a shame when this happens. Are we Indians as powerless as the electric sewage treatment plants without electricity?)
Monday, July 7, 2008
Nitrite and Ischaemia
Now, Nitrites can be reduced to Nitric Oxide (NO). NO is a very important signalling molecule in the body and it is involved in things ranging from immune response to angiogenesis (formation of new blood vessels). Incidentally, Viagra functions by modulating NO production in the body. Mazzone and Carmeliet, who reported Kumar et al.'s findings in the 26th June 2008 issue of Nature, point out that NO modulates Vascular Endothelial Growth Factor (VEGF) which may result in angiogenesis. Also, VEGF helps in the increased synthesis of NO, presumably by upregulating Nitric Oxide Synthetase. Thus, a positive feedback loop is created.
Now you might be wondering how this is safe. After all, as Mazzone and Carmeliet point out, NO in large quantities is dreadful. For instance, No messes with haemoglobin's oxygen carrying capacity and also disrupts cytochrome c oxidase. Furthermore, reactive oxygen species (such as free radical superoxides) are known to react with NO to make peroxynitrite (ONOO-). Read the article by
They talk about how peroxynitrites are involved in aging, hypertension, and Atherosclerosis. Basically, this species can cause tremendous oxidative damage, particularly to the cell's DNA and proteins.
However, NO doesn't work indiscriminately. This is the beauty of the thing. In vessels with a high oxygen concentration, Nitrites gets oxidised to nitrates. However, in occluded vessels, where the oxygen levels are low, nitrites get reduced to NO and angiogenesis gets initiated, thereby helping ease the ischaemic conditions. This makes it possible to administer the NO non-specifically, perhaps even orally. The challenge is to find the perfect NO concentration that avoids high peroxynitrite concentrations and is sufficient to promote angiogenesis at the same time.
How much time do you give it?