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Denmark

Bridge to nowhere

Issue Date: Oct 31, 1999
the longest European bridge ever is being built across the Oresund Strait between southern Sweden and Denmark. This is the only entry to the Baltic Sea. The question is why build a concrete monster when there is a speedy and efficient ferry service? I am only one of many Swedes and Danes appalled by this project, which threatens to jeopardise the fragile environment of the southernmost province of Skane.

3D imager

Author(s): Mario
Issue Date: Aug 15, 1999
Holograms, or three-dimensional (3D) images of objects, are not only attractive to look at but also have remarkable properties. However, the process of making a holographic image is a lengthy one. Now, scientists at the Risoe National Laboratory in Denmark have developed a photo-sensitive polymer in which a blue-green laser light can record a holographic image almost instantly. The best part of this new device is that like Polaroid cameras used in still photography, these images do not require any chemical processing.

Windfall

Issue Date: Jan 31, 1999
wind energy is considered to be the world's fastest growing energy source. And why not. It generated a record 2,100 megawatts (mw) of power in 1998. This was 35 per cent more than the previous year, according to a study conducted by Christopher Flavin of the Worldwatch Institute based in Washington, dc, usa .

For cleaner air

Issue Date: Jul 31, 1998
thirty-two nations from across Europe and North America have agreed to reduce airborne emissions from three heavy metals and ban or limit 16 of the world's most dangerous chemicals. The legally-binding phase-outs were signed at a summit in Aarhus, Denmark, by environment ministers from across Europe, Central Asia and North America. The summit was sponsored by the United Nations.

Bug exterminators

Issue Date: Jun 15, 1998
Molecules that mimic DNA could be turned into a new family of antibiotics, say Danish scientists. The molecules are based on peptide nucleic acid (PNA). In PNA, nucleotide bases like those in DNA and ribonucleic acid (RNA) are attached to a backbone of linked amino acids. Researchers at the University of Copenhagen say that they have now produced PNA molecules that have base sequences designed to stick to key parts of RNA in the food-poisoning bacterium Escherichia coli . They hoped this would stop the bacteria from making proteins and kill them.

Towards cheaper fuel

Issue Date: May 15, 1998
A metal catalyst may one day bring cheaper fuel. Flemming Besenbacher of the University of Aarhus, and Jens Norskov at the Technical University, Copenhagen, Denmark, took a catalyst for steam reforming, where hydrocarbons from natural gas are converted to molecular hydrogen and carbon monoxide that can be used to produce ammonia, methanol and fuels. Nickel is used as active ingredient in the catalyst. But if pure nickel is used, carbon atoms tend to stick to it and eventually stop its working. The key was to change the catalyst's reactivity slightly.

MONEYMAKERS

Issue Date: Feb 28, 1998
leprosy vaccine soon: Ahmedabad-based Cadila Pharmaceuticals Limited has planned to launch the world's first immuno-therapeutic leprosy vaccine, called Leprovac by June this year. Pran Talwar and his colleagues at the National Institute of Immunology (NII) have developed the vaccine that would cost Rs 6 per dose and of Rs 50 for a total of eight doses over a period of two years.

Pregnancy and cancer

Issue Date: Sep 15, 1997
doctors often warn women who have breast cancer not to get pregnant. Since estrogen is believed to stimulate tumor growth, nine months of elevated levels of the hormone seem just too big a risk. But a study conducted by scientists in Copenhagen suggests that the risk may be worth taking. Using the Danish Cancer Registry and the National Birth and Induced Abortions Registries, the researchers coordinated the databases and found that 5,725 women of childbearing age had been treated for breast cancer. They examined their reproductive histories.

Aqua guard

Issue Date: Jan 31, 1997
torbang vang, a Danish marine geologist, is understandably proud of his country's expertise in developing advanced marine monitoring systems.

Look before you leap

Issue Date: Sep 15, 1996
an amendment to the Danish law of environmental protection stipulates as of June, 1996, that foreign countries about to buy shut-down and potentially dangerous industrial plants, must receive full information about their environmental consequences. The law does not ban the transfer of such technology.
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