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This year’s Nobel Prize in physics recognises the spectacular progress during the last decade in the cooling and trapping of atoms by the use of laser beams. The techniques exploit basic physical principles with great ingenuity and have very interesting applications in precision measurement and the study of new phenomena. 相似文献
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Vasant Natarajan 《Resonance》2008,13(7):655-661
We analyze Einstein’s views on God and religion, and his views on Quantum Mechanics.
Vasant Natarajan is at the Department of Physics, Indian Institute of Science. His research interests are in high-resolution
laser spectroscopy, optical frequency measurement, and use of laser-cooled atoms to search for time-reversal violation in
the laws of physics. He serves on the Editorial board of Resonance and contributes regularly to the journal. He considers himself an Ekalavya-type shishya to his guru Einstein. A picture of
Einstein hangs above his chair.
This article first appeared in ‘Backstage’ — a newsletter published to mark the theatre festival ‘Moitree’ organized by Mukhosh, a Bangalore-based Bengali theatre
group. 相似文献
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Turmeric has long been used as a spice and food colouring agent in Asia. In the present investigation, the antimutagenic potential of curcumin was evaluated in Allium cepa root meristem cells. So far there is no report on the biological properties of curcumin in plant test systems. The root tip cells were treated with sodium azide at 200 and 300 μg/ml for 3 h and curcumin was given at 5, 10 and 20 μg/ml for 16 h, prior to sodium azide treatment. The tips were squashed after colchicine treatment and the cells were analyzed for chromosome aberration and mitotic index. Curcumin induces chromosomal aberration in Allium cepa root tip cells in an insignificant manner, when compared with untreated control. Sodium azide alone induces chromosomal aberrations significantly with increasing concentrations. The total number of aberrations was significantly reduced in root tip cells pretreated with curcumin. The study reveals that curcumin has antimutagenic potential against sodium azide induced chromosomal aberrations in Allium cepa root meristem cells. In addition, it showed mild cytotoxicity by reducing the percentage of mitotic index in all curcumin treated groups, but the mechanism of action remains unknown. The antimutagenic potential of curcumin is effective at 5 μg/ml in Allium cepa root meristem cells. 相似文献
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Srikala Naraian Poonam Natarajan 《International Journal of Disability, Development & Education》2013,60(2):146-166
The qualitative study reported in this article investigated how youth with disabilities in India described their peer relationships within their educational settings. We situate the aims of this study within the larger context of inclusive education in India and discourses on self-determination for individuals with disabilities. Findings from the study suggest that students with disabilities actively sought membership in their peer communities but had few opportunities within inhospitable schooling contexts to represent themselves in ways other than as needing help. For families of students with disabilities, the onerous demands of making physical environments and curricular materials accessible to their children left them isolated within schools and their communities. The study sheds light on families’ reluctance to abandon legal guardianship models in order to support increased self-determination for their children, and also raises important questions for activist educators working within complex conditions such as the Indian context. 相似文献
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Bacterial leaching is the extraction of metals from their ores using microorganisms. Microbial technology offers an economic
alternative for the mining industry, at a time when high-grade mineral resources are being depleted. 相似文献
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With each passing year, the young Albert Einstein’s achievements in physics in the year 1905 seem to be ever more miraculous.
We describe why the centenary of this remarkable year is worthy of celebration. 相似文献
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