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Tag Archives: Water

Cancer patients: How strongly does tissue decelerate the therapeutic heavy ion beam?

Cancer patients: How strongly does tissue decelerate the therapeutic heavy ion beam?

Irradiation with heavy ions is suitable in particular for patients suffering from cancer with tumours which are difficult to access, for example in the brain. These particles hardly damage the penetrated tissue, but can be used in such a way that they deliver their maximum energy only directly at the target: the tumour. Research in this relatively new therapy method is focussed again and again on the exact dosing: how must the radiation parameters be set in order to destroy the cancerous cells “on the spot” with as low a damage as possible to the surrounding tissue? Continue reading

Cure for dry eye could be a blink away

Cure for dry eye could be a blink away

A treatment for dry eye — a burning, gritty condition that can impair vision and damage the cornea — could some day result from computer simulations that map the way tears move across the surface of the eye. Kara Maki, assistant professor in Rochester Institute of Technology’s School of Mathematical Sciences, contributed to a recent National Science Foundation study seeking to understand the basic motion of tear film traversing the eye Continue reading

Clinical trial reaffirms diet beverages play positive role in weight loss

Clinical trial reaffirms diet beverages play positive role in weight loss

A new study published today in Obesity , the journal of The Obesity Society, confirms that drinking diet beverages can help people lose weight. Continue reading

New neural pathway found in eyes that aids in vision

New neural pathway found in eyes that aids in vision

A type of retina cell plays a more critical role in vision than previously known, a team led by Johns Hopkins University researchers has discovered. Working with mice, the scientists found that the ipRGCs — an atypical type of photoreceptor in the retina — help detect contrast between light and dark, a crucial element in the formation of visual images. The key to the discovery is the fact that the cells express melanopsin, a type of photopigment that undergoes a chemical change when it absorbs light Continue reading

New neural pathway found in eyes that aids in vision

New neural pathway found in eyes that aids in vision

A type of retina cell plays a more critical role in vision than previously known, a team led by Johns Hopkins University researchers has discovered. Working with mice, the scientists found that the ipRGCs — an atypical type of photoreceptor in the retina — help detect contrast between light and dark, a crucial element in the formation of visual images. The key to the discovery is the fact that the cells express melanopsin, a type of photopigment that undergoes a chemical change when it absorbs light Continue reading

Living conditions in Iraq must improve if investment in health system is to yield results

Living conditions in Iraq must improve if investment in health system is to yield results

Despite enormous investment in Iraq’s health system in the 10 years since the US-led invasion, the health condition of Iraqis has deteriorated and will fail to improve unless more is done to improve living conditions. A review published today in the Journal of the Royal Society of Medicine concludes that continual investment in health services is crucial to elevate the health status of the Iraqi population, but that progress will be limited without improvements in housing, water and sanitation, electricity, transport, agriculture, education and employment Continue reading

Cause of many preterm births discovered: Premature aging of placenta from oxidative stress

Cause of many preterm births discovered: Premature aging of placenta from oxidative stress

A new study by researchers at the University of Texas Medical Branch at Galveston is the first to show that premature aging of the placenta due to oxidative stress is the cause of many preterm births. The study appears today in the American Journal of Pathology. Continue reading

Key protein enhances memory, learning

Key protein enhances memory, learning

Case Western Reserve researchers have discovered that a protein previously implicated in disease plays such a positive role in learning and memory that it may someday contribute to cures of cognitive impairments. The findings regarding the potential virtues of fatty acid binding protein 5 (FABP5) — usually associated with cancer and psoriasis — appear in the May 2 edition of The Journal of Biological Chemistry . “Overall, our data show that FABP5 enhances cognitive function and that FABP5 deficiency impairs learning and memory functions in the brain hippocampus region,” said senior author Noa Noy, PhD, a professor of pharmacology at the School of Medicine. Continue reading

Fighting antibiotic resistance with ‘molecular drill bits’

Fighting antibiotic resistance with ‘molecular drill bits’

In response to drug-resistant “superbugs” that send millions of people to hospitals around the world, scientists are building tiny, “molecular drill bits” that kill bacteria by bursting through their protective cell walls. Continue reading

Pavlov’s rats? Rodents trained to link rewards to visual cues

Pavlov’s rats? Rodents trained to link rewards to visual cues

Jan. 23, 2013 — In experiments on rats outfitted with tiny goggles, scientists say they have learned that the brain’s initial vision processing center not only relays visual stimuli, but also can “learn” time intervals and create specifically timed expectations of future rewards Continue reading