Research

R&D roadmap for green hydrogen ecosystem in India

The Ministry of New and Renewable Energy has published the R&D; Roadmap for Green Hydrogen Ecosystem in India. This document was published on 13th October, 2023. One of the central pillars of the National Green Hydrogen Mission is the establishment of a supportive research and innovation ecosystem for green hydrogen …

Material in, metal out

Researchers from Calcutta have managed to develop a new ceramic that boasts of properties which could ultimately mean the replacement of conventional metallic parts used in refractories and engines. The material which is called 'sialon' ceramic', has been developed by a team of scientists led by Siddartha Bandopadhyay from the …

Mathematical models to study the outbreaks of Ebola

Using S-I-R and S-E-I-R models, it was possible to simulate two Ebola outbreaks: the 1976 outbreak in Yambuku, Zaire and the 1995 outbreak in Kikwit, Zaire. The dynamics of these models are determined by the per-capita death rate of infected individuals and the per-capita effective contact rate of an individual …

Tiny terrors

FLEET-FOOTED and wary, the rodent is an adversary humans can undoubtedly do well without. But so far, no device has yet proven to be combative enough for this nuisance that has per~Bandicoota bengalensis .td..tt. , SIS e smce ancien Imes. Apparently, even the Egyptians and Mesopotamians (if archaelogical findings are …

Plastic ploys

POLYMERs are probably the most easily visible materials in our lives. From bottles to toys and from crates to packaging materials - they are omnipresent. Polymers are basically chemical compounds of high molecular weights consisting of a number of structural units - called monomers - which are linked together by …

Boring venture

SCIENTISTS from Britain and six other countries have 4 together in unprecedented venture to um the mysteries a world's past dim They will sail os world's largest and most techmi cally advanced scientific drill Ship Joides Resolution - to the Arctic and drill deep into the ocean kX carry out …

No small matter

DOES our universe have antimatter (the oppositely charged counterpart of ordinary matter) in substantial quantities? Do we have whole galaxies made up of antimatter, much like our own galaxy which is made up of matter? These are some of the brainteasers which could be closer to a solution if Massachusetts …

Pipe screams

Thefamous i9th century pipe organ at the Notre Dame Cathedral in Paris has gone hi-tech. The French ministry of culture has spent US $2.2 million to digitise the organ. Now, a system of microprocessors and sensors interprets how the keys and pedals have been pressed. The system, once perfected, will …

Solar dreams

The inability to produce cheap and efficient photovoltaic cefls that convert solar energy into electricity has, till now, hamstrung solar power generation, Scientists have -xperi- mented with alternatives to silicon (used for photovoltaics) like organic polymers, which, while being cheaper and easier to process, are not effective enough. Now 2 …

Prizing knowledge

THE Council of Scientific and Industrial Research (CSIR) has announced the winners of the coveted Shanti Swarup Bhatnagar Awards for the 'year 1995, in Delhi on September 26. These awards were announced by R A Mashelkar, director general, CSIR, marking the csiR Foundation Day - the 53rd anniversary of the …

Collision course

PARTICLE accelerators, like the one At fermilab in Illinois, us, have been invaluable Tools in our quest for understanding the nature of the microcosm, e accelerators smash particles her, by analysing the resultant ris', one can gain valuable insights he structure of matter. The higher mergy with which the particles …

Family tree

The popular use of the term DNA 'fingerprinting' has resulted from normal fingerprinting becoming synonymous with crime detection. In any case, DNA profiling, which is the correct term for the method used in investigating Naina Sahni's murder-(and many other cases), had an ancestor in the Inspector General of Police of …

Changing aura of contamination

BIOLUMINESCENCE detection is changing the face of microbial contamination. A new biotechnology device is now being exploited worldwide to detect microbial contamination in industries ranging from cosmetics, to foodstuffs to pharmaceuticals. According to a report in the Financial Times, London, about 2.5 billion such tests were performed worldwide last year, …

Deceptive ashtrays

SMOKERS enjoy that puff while non- smokers in their vicinity suffer health hazards for no fault of theirs. In recognition of the ill-effects of plumes of smoke emanating from a smouldering cigarette between puffi, smokeless ashtrays were designed. Research into the effectiveness of these supposedly public-friendly ash-trays may give its …

Curtailing CFCs

WITH the production of chlorofluorocarbons (CFCs) coming to a slow stop as a consequence of the Montreal Protocol of 1987, efforts are now directed towards its disposal. Large amounts of this ozone depleting chemical are being collected from aerosols, insulation foams and cooling units for its final denouement. Breaking down …

Tracing truth

IT is not so long since scientists claimed to have deciphered the code of life: the deoxyribonucleic acid. DNA, as it is commonly known, had foxed scientists ever since it was discovered as the key player in genetic transfer of characters in all forms of life. Interestingly, close on the …

Celestial springs

WHEN the giant comet Shoemaker-Levy 9 crashed against Jupiter exactly a year ago and took the world of science by storm, it also created water. Researchers working with Italy's National Research Council have been monitoring the impact, using a radio telescope equipped with a high-speed spectrometer. And they now claim …

Light connections

WHAT microelectronics was to the '70s and the '80s, optoelectronics promises to be for the 21st century. Optoelectronic circuits are finding increasing use in many diverse areas like telecommunications, imaging technology and high speed computing. One of the major areas of research has been to fabricate optical circuits. A combination …

Crystalline construction

Researchers at the University of Leiden, the Netherlands, have photographed images of the growth of Helium-3 crystals. The crystals, grown at a temperature of 0.001' Kelvin - close to the lowest temperature obtainable theoretically, which is 0* Kelvin - were shot by a charge-coupled device camera (Science, Vol 268, No …

Expensive explorer

One ofthe most controversial of scientific projects, Gravity Probe-B, has won the approval of an expert panel of the National Academy of Sciences. The project, proposed by Stanfora physicist Francis Everitt, envisages sending a probe in orbit around the Earth to test Einstein's General , Theory of Relativity (Science, Vol …

Genetic goldmine

A TEAM of researchers led by geneticist Yosef Shiloh of the Tel Aviv University in Israel has tracked a defective gene that not only causes a rare balance disorder called ataxia telangiectasia or AT, but may also be the single largest hereditary cause of breast cancer (Science, Vol 268, No …

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