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Friday, August 15, 2008 Volume: 6, Issue: 33
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| Health |
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New surgical tower to come up in AIIMS |
New Delhi: A new surgical tower with a separate surgical speciality block will be one of the new additions to all India Institute of Medical Sciences (AIIMS) when it undergoes a revamp. Renovations and additions would be made to the existing set-up to improve patient care, AIIMS deputy director, administration, Shailesh Yadav told reporters in New Delhi. Beginning with the projects listed in the sixth proposal, he said, "we plan to have a new surgical tower. There is already one neurosurgery tower, the cardio-thoracic tower and a separate opthalmology and cancer tower. This new surgical tower will have a surgical speciality block, OPD and surgical wards." This new tower will be raised in place of the existing laundry and the laundry instead will be pushed next to the forensics department, Yadav said.
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Root cause of epilepsy fits foundRoot cause of epilepsy fits found |
Paris: Researchers in the United States said that they had found the key to a decades-old riddle over epileptic fits, helping to advance the quest for new treatments for this disabling condition. Experiments in the last century found that by breathing carbon dioxide (COČ), an epileptic patient boosted acid levels in the brain and could terminate a fit, although the molecular switch for achieving this was veiled in mystery. In experiments on mice, scientists from the University of Iowa and the Veterans Affairs Iowa City Health Care System, reporting in a specialist journal, believe they have found the switch. A channel known as ASIC1a, located on the surface of brain cells, opens up in response to higher ...[ more ]
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`Pregnancy linked to forgetfulness` |
Melbourne: Many women believe they become more forgetful when pregnant -- a new study reveals they are right, for researchers have discovered that a hormone linked to Alzheimer's spikes during that period. Until now, only widespread anecdotal evidence from mothers-to-be supported claims that pregnancy actually caused forgetfulness. Now, a team in Australia has replicated the effects in the laboratory. "There have been plenty of epidemiological studies showing a link between pregnancy and memory loss, but now we have some pretty good evidence of the physiological basis for this," lead researcher Anna Baron said.
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Body clock can make out diff light colours |
Washington: The human circadian system seems to have the ability to distinguish between different colours of light, say scientists. The circadian system is a term used for biological cycles that repeat approximately every 24 hours, and require daily light exposure to the eyes` retina to remain synchronised with the solar day. Mariana Figueiro of the Lighting Research Center (LRC) at Rensselaer Polytechnic Institute says that short-wavelength light, such as natural light from the blue sky, is highly effective at stimulating the circadian system. A light of any other wavelength may require longer exposure times and higher exposure levels to be effective, she adds. It may be recalled that the colour of a light depends upon its wavelength, and changes with the wavelength. In certain cases, exposure to multiple colours of light simultaneously can result in less total stimulation to the circadian system than would result if either colour were viewed separately, a phenomenon known as "spectral opponency". Mariana says that her team has discovered that the circadian system shares neurons in the retina that exhibit spectral opponency, and form the foundation for the human perception of colour. In principle, the circadian system may be able to distinguish between lights of different colours, she says. During a study, Mariana and her colleagues exposed 10 subjects to three experimental conditions-one unit of blue light to the left eye plus one unit of green light to the right eye; one unit of blue light to the right eye plus one unit of green light to the left eye; and half a unit of blue light plus half a unit of green light to both eyes. Thereafter, the researchers measured each subject`s melatonin levels, a natural indicator of the circadian clock.
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