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Latest period Stories

2012-07-29 14:20:08

HONG KONG, July 29, 2012 /PRNewswire-Asia/ -- Financial Highlights for 2012 interim results: Revenue rose 13% year-on-year to approximately RMB2,031 million. Net profit attributable to owners of the parent increased 2.5-fold year-on-year to approximately RMB175 million. Overall gross profit margin advanced six percentage points to 18% from a year ago. Net cash inflows from operating activities more than tripled to RMB337 million when compared with the same period last year. China XLX...

2012-05-24 19:10:36

Women trying to have babies also need to think about circadian clock A new Northwestern University study shows that the biological clock is not the only clock women trying to conceive should consider. The circadian clock needs attention, too. Epidemiological studies have shown female shift workers, such as nurses, and female flight attendants who work on long-distance east-west routes (i.e., those with constant jet lag) have fertility and menstrual issues. They are habitually out of...

2011-10-13 11:38:13

It's no secret that long-distance, west-to-east air travel — Seattle to Paris, for example — can raise havoc with a person's sleep and waking patterns, and that the effects are substantially less pronounced when traveling in the opposite direction. Now researchers, including a University of Washington biologist, have found hints that differing molecular processes in an area of the brain known as the suprachiasmatic nucleus might play a significant role in those jet lag...

2011-09-30 12:08:00

LA JOLLA, Calif., Sept. 30, 2011 /PRNewswire-USNewswire/ -- Ever wondered why you wake up in the morning ---- even when the alarm clock isn't making jarring noises? Wonder no more. Researchers at the Salk Institute for Biological Studies have identified a new component of the biological clock, a gene responsible for starting the clock from its restful state every morning. The biological clock ramps up our metabolism early each day, initiating important physiological functions that tell...

2011-09-07 11:15:29

Do animals that have evolved for millions of years underground, completely isolated from the day-night cycle, still "know" what time it is? Does a normal circadian clock persist during evolution under constant darkness? A new study directly tackles these fundamental questions by investigating a species of cavefish, Phreatichthys andruzzii, which has lived isolated for 2 million years beneath the Somalian desert. Many fish species have evolved in the absence of sunlight in cave systems around...

2011-09-01 16:43:39

Yale University researchers have identified a key genetic gear that keeps the circadian clock of plants ticking, a finding that could have broad implications for global agriculture. The research appears in the Sept. 2 issue of the journal Molecular Cell. "Farmers are limited by the seasons, but by understanding the circadian rhythm of plants, which controls basic functions such as photosynthesis and flowering, we might be able to engineer plants that can grow in different seasons and...

2011-07-21 13:08:05

Humans and zebrafish share mechanisms that regulate our circadian system, says TAU researcher Circadian rhythms "” the natural cycle that dictates our biological processes over a 24-hour day "” does more than tell us when to sleep or wake. Disruptions in the cycle are also associated with depression, problems with weight control, jet lag and more. Now Prof. Yoav Gothilf of Tel Aviv University's Department of Neurobiology at the George S. Wise Faculty of Life Sciences is looking to...

2011-02-16 17:13:05

Scientists identify a gene important for the daily rhythms of the sleep-wake cycle Northwestern University scientists have discovered a new mechanism in the core gears of the circadian clock. They found the loss of a certain gene, dubbed "twenty-four," messes up the rhythm of the common fruit fly's sleep-wake cycle, making it harder for the flies to awaken. The circadian clock drives, among other things, when an organism wakes up and when it sleeps. While the Northwestern study was done using...

2010-12-29 13:54:04

In a new paper published this week in the Proceedings of the National Academy of Sciences, Aziz Sancar, MD, PhD, the Sarah Graham Kenan Professor of Biochemistry and Biophysics in the UNC School of Medicine, and his colleagues have taken an important step in understanding the underlying molecular signals that influence a broad array of biological processes ranging from the sleep-wake cycle to cancer growth and development. Scientists who work in this field, known as chronobiology, have...

2010-12-02 00:45:37

A gene that controls part of the 'tick tock' in a plant's circadian clock has been identified by UC Davis researchers. And not only is the plant gene very similar to one in humans, but the human gene can work in plant cells -- and vice versa. The research is published this week in the journal Proceedings of the National Academy of Sciences. "It's surprising to find a clock gene that is performing the same function across such widely unrelated groups," said Stacey Harmer, associate professor...