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Denmark

Friendly foe

Issue Date: Feb 15, 2000

Sex determination and stress

Issue Date: Jan 31, 2000
Women who endure a very stressful event in their families around the time of conception have an increased chance of giving birth to a baby girl. Dorthe Hansen and colleagues at the John F Kennedy Institute in Glostrup, Denmark, took a look at national fertility records of Denmark. They studied 3,072 mothers who had gone through either a death in the family or a hospitalisation of a family member because of cancer or a heart attack during the year their baby was born or the previous year.

Open secret

Issue Date: Dec 31, 1999
the Tropical Botanical Garden and Research Institute (tbgri), a Thiruvananthapuram-based autonomous research organisation under the department of science and technology, has exported medicinal plants to biotech firms in Singapore and Denmark without the prior consent of the Union government.

Appeal by NGOs

Issue Date: Dec 31, 1999
three Dutch environmental groups will appeal against a German court's decision lifting restrictions on building a dam on the river Eems that flows near the border between the two countries.

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.
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