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Children Science Congress begins with interactive dialogue of Prof. Yashpal

It was a real feast of knowledge for students as well as the audience at the inaugural ceremony of the Children Science Congress when Prof. Yashpal invited school students to the dais and explained the mystery of the sound of clapping

Science Congress is an Important Platform for Bringing

The Indian Science Congress is an annual session generally held from 3rd to 7th January among the scientists of different disciplines, science managers, policy makers and the general public to give a stronger impulse and a more systematic direction to the scientific inquiry, to promote the interaction of societies and individuals interested in science in different parts of the country and to obtain a more general attention to the objects of pure and applied sciences.

CHILDREN SCIENCE CONGRESS AT GUJARAT SCIENCE CITY

About 250 students from all over the country will participate in children science congress at the science city starting from January 3. The congress, a part of the Indian science congress, will be a unique event for children of Gujarat, to interact with the selected students from different parts of the country. The Children Science Congress is a part of the 92nd Indian Science Congress which is being held this year in Ahmedabad.

Tsunami: A new name in earthquake disaster !

For thousands of fisher folk, who had gone like every morning into the sea, it was again the same story - suddenly being caught in a phenomenon, tsunami, which struck India for the first time in recorded history.

New Tender Announced

TENDER DOCUMENT FOR
LIGHTING AND SOUND SYSTEMS FOR CULTURAL PERFORMANCES AT GLOBAL INVESTORS'
SUMMIT 2005
AT GUJARAT SCIENCE CITY, AHMEDABAD.

Winning the war against genetic diseases

ONE OF the potential benefits of Human Genome Project is in the field of gene therapy. Each of us carries about half a dozen defective genes. We remain blissfully unaware of this fact unless we, or one of our close relatives, are amongst the many millions who suffer from a genetic disease. About one in ten people has or will develop at some later stage, an inherited genetic disorder, and approximately 2,800 specific conditions are known to be caused by defects (mutations) in just one of the patient's genes. Some single gene disorders are quite common-cystic fibrosis is found in one out of every 2500 babies born in the Western World and in total, diseases that can be traced to single gene defects account for about 5 percent of all admissions to children's hospitals.
Most of us do not suffer any harmful effects from our defective genes be cause we carry two copies of nearly all genes, one derived from our mother and the other from our father. The only exceptions to this rule are the genes found on the male sex chromosomes. Males have one X and one Y chromosomes, the former from the mother and the latter from the father, so each cell has only one copy of the genes on these chromosomes. In the majority of cases, one normal gene is sufficient to avoid all the symptoms of diseases. If the potentially harmful gene is recessive, then its normal counterpart will carry out all the tasks assigned to both. Only if we inherit from our parents two copies of the same recessive gene will a disease develop.

Toxic wastes as fertilisers Poisoning or nourishing ?

Wastelands: The threat of toxic fertilisers," released recently by the national and state Public Interest Research Groups (PIRG) of the United States, reveals that a total of 22 toxic metals, including arsenic and lead , were found in the common fertilisers in the US. Fertiliser products become contaminated when manufacturers buy toxic wastes from industrial facilities to obtain low cost plant nutrients such as zinc or iron.


Human Genome Project A special Report

The complete set of instructions for making an organism is called its genome. It contains the master blueprint for all cellular structures and activities for the lifetime of the cell or organism. Found in every nucleus of a person's many trillions of cells, the human genome consists of tightly coiled threads of deoxyribonucleic acid (DNA) and associated protein molecules, organized into structures called chromosomes.
Some DNA details : If unwound and tied together, the strands of DNA would stretch more than 5 feet but would be only 50 trillionths of an inch wide. For each organism, the components of these slender threads encode all the information necessary for building and maintaining life, from simple bacteria to remarkably complex human beings. Understanding how DNA performs this function requires some knowledge of its structure and organization.


Drink water, keep heart healthy

Researchers at Loma Linda University in California found that people who drank at least five glasses of water each day were less likely to die from a heart attack than those who drank two or fewer glasses per day. In contrast, people who drank a lot of other fluids were more likely to die from heart attack than those who drank less, with high levels of non water drinking in women associated with a more than twofold increased risk of death

How sound becomes electric

SCIENTISTS FROM THE Centre for Hearing and Balance at Johns Hopkins have discovered how tiny cells in the inner ear change sound into an electrical signal the brain can understand.

Their finding, published in a recent issue of Nature Neuroscience, cound improve the design and programming of hearing aids and cochlear implants by filling in a 'black hole' in scientists understanding of how we hear, say the researchers.

"Sound itself is mechanical, a wave that moves, just like the ripples fanning out from a pebble dropped in a lake," says Paul Fuchs, professor of otolaryngology at the Johns Hopkins School of Medicine. "When the inner ear detects this wave, a burst a nerve sends an electrical signal to the brain that carries information about the original sound. But the nature of the chemical burst has been a mystery until now."


Vascular surgeon with a vision

Many of the serious illnesses, be it heart attack, stroke or problems, have their origin in blood vessels. But the surgeon who deals with the blood vessels, the lifeline of the human body, is the least known.
Dr. S.A. Hussain is not angry with this public ignorance or the unfavourable treatment the surgeons of vessels, called vascular surgeons, receive. Instead, he is on a campaign to sensitise people and to improve public health.


New asthma treatment

Three potent proteins of the immune system, evolved to purge us of intestinal parasites, now often launch misguided attacks in our airways, triggering the congestion of asthma that leaves millions gasping for air.
By studying the genetic machinery that controls production of these immune soldiers called cytokines, a team of scientists has demonstrated a potential strategy to silence their misfiring and quell the asthma response.

Mechanical heart moves ahead

A daring experiment testing a self- contained mechanical heart offers new hope for thousands with failing heart, many of whom may die while waiting for transplants.

First genetically altered babies born

The world's first genetically modified babies have been born after women unable to conceive naturally underwent a revolutionary new fertility treatment used by scientists at a New Jersey medical facility, a researcher said this week.


Low Cost Cholera Vaccine

Trials of a cholera vaccine manufactured in Vietnam at a cost of about only 20 US cents a dose have produced encouraging results, especially for children, an international team of researchers reports in the World Health Organisation's latest issue of The Bulletin. A team headed by Professor Dang Duc Trach at the National Institute of Hygiene and Epidemiology in Hanoi concluded that the vaccine was "safe and immunogenic" and "could elicit robust immune responses".


 
 

First genetically altered babies born

The world's first genetically modified babies have been born after women unable to conceive naturally underwent a revolutionary new fertility treatment used by scientists at a New Jersey medical facility, a researcher said this week.

The Institute for Reproductive Medicine and Science of St. Barnabas medical Center in West Orange, New Jersey, has used the technique to produce 15 healthy babies, the oldest of whom turns 4 years old in a month, said Jacques Cohen, scientific director of assisted reproduction at the institute.

He said his institute was the first to use the technique called plasmic transfer, but other fertility specialists had followed. He said another 15 babies had been born following the use of the technique at different facilities.

Cohen dismissed criticism by some scientists who labeled as unethical, a technique that in a sense leaves children genetically with two mothers.

" I don't think this is wrong at all," Cohen told Reuters. "And I think we have to look at the positive part here. I think this did work. These babies wouldn't have been born if we wouldn't have done this."

In the technique, doctors take an egg from an infertile woman, the egg form a donor woman and the sperm from the infertile woman's mate. The doctors then suck out a little bit of the contents of the donor egg - the cytoplasm - using a microscopic needle manipulated by tiny robtic arms. The cytoplasm is then injected into the infertile woman's egg along with the sperm to fertilise it.

The researchers believe the technique helps women who had been unable to conceive because of defects in their eggs.

But the method can introduce genetic material - mitochnodrial DNA - from the female donor's egg into the mix of genetic material from the mother and father. Tests confirmed that two of the 15 babies produced by the technique at the institute were carrying genetic material from the birth mother, the father and the woman who donated an egg. Cohen said.

The procedure, described in the British medical journal Human Reproduction, has raised ethics questions among some critics in the scientific community. Cohen and his colleagues wrote in the journal that this was " the first case of human germ line genetic modification resulting in normal health children."

"Germline" refers to the genes that a person will pas son to his or her children.

"This news should gladden all who welcome new children into the world. And it should trouble those committed to transparent public conversation about the prospects of using 'reprogenetic ' technologies to shape future children," said Erik Parens for The Hastings Centre in Garrison, New York, and Eric Juengst of the Centrer for Biomedical Ethics at Case Western Reserve university in Clevle in a commentary in the journal Science.

But Cohen countered : " There are different levels of ethics. There are people who are saying, 'Why would you do something like this without maybe hard proof that it would work? That's one level of ethics. The other one is, 'Well, you're tampering with nature,' which is the same question you get when you deal with any form of assisted reproduction"

Cohen said the technique did not manipulate the genes, but merely added innocuous extra genetic material. "We haven't changed any genes, " he said. "That's huge step compared to the little ting that we did. But you could say there would have normally bee mitochondria from only one oue (the mother). Now there's mitochondria from two sources, and therefore therefore, there's two different type mitochondria DNA there."

Mitochnondria are minute structures vital to energy production within a cell that contain genes that are located outside a cell's nucleus, home to most of the cell's genes.

Of the 15 babies produced by the technique used at the institute since 1997, 13 in the US. One lived in Britain and another in france, Cohen said. He said the institute used the technique on 30 infertile women. Seventeen failed to become pregnant and one he said. The remaining 12 women delivered babies, with there of the woman having twins.

"So far, from what we understand, they are doing okay, "Cohen said of the babies, "And those two that had the mixed mitochondria, they're doing okay, too."

No government money was used in the research, Cohen said.

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