1,000-year-old Arctic ponds disappearing due to global warming
...er) monitoring from the high Arctic. Over the 24 years the researchers spent monitoring the ponds, they recorded evidence of recent lower water levels and changes in water chemistry consistent with an increase in evaporation/precipitation ratios (E/P) and warmer temperatures. Until recently, the ponds of...Global warming is evaporating Arctic ponds, new study shows
...d ecological trends over the past several thousand years in some of the ponds, using paleoecological techniques. In a controversial 1994 paper published in the journal Science, they showed that the ponds existed for millennia, but that, beginning in the 19th century, they underwent marked ecological change...New approach to pulmonary hypertension shows promise
...es itit usually kills patients within four to five years from diagnosis," said Sebastien Bonnet, a post-doctoral fellow in the U of A Department of Medicine and first author of the paper. However, the U of A researchers believe they've made a breakthrough in their discovery of the role that nuclear-facto...Satellite images reveal link between urban growth and changing rainfall patterns
... importance. The growth of aquaculture in recent years has threatened coastal mangrove forest habitats in the Red River Delta. In response, the Vietnamese government has established protected areas, such as the Xuan Thuy Natural Wetland Reserve, which was designated a Ramsar site in 1988. For the study...Tick-related disease thrives on cholesterol, study suggests
...ction. In one study, infected patients averaged 51 years old, while 39 was the average age for a person infected with Lyme disease. Our blood cholesterol levels generally rise as we age, Rikihisa said. Someone who suspects he was bitten by a tick needs to seek prompt antibiotic therapy. Additionally, low...Personalized approach to ovarian stimulation achieves high ART pregnancy rates
... FSH in early spontaneous cycle, age (less than 35 years old), body mass index and antral follicle count in early spontaneous cycle. However, we still have more work to do before the algorithm can be used for all patients in the clinic. Firstly, the FSH dose calculator has only been validated for GONAL...New approaches to endometriosis treatment -- mouse experiments point the way
...e treatment, and that they have been used for many years in order to stop breastfeeding, for example, without any major side effects, says Dr. Novella-Maestre, so we decided to see what effect they would have on the experimental mice. The scientists found that the blood vessel formation in the lesions wa...Marine worm opens new window on early cell development
...ck to the Paleozoic era, which started 542 million years ago. Polychaete refers to many hairs or many bristles that come off protrusions of the worms bodies, which consist of fluid-filled tubes within tubes. These worms are bilaterally symmetrical with closed circulatory systems. Their ancient simplicity, ...Early fire risk for mountains near Los Angeles
... Santa Monica Mountains near Los Angeles. And this years forecast says the highest-risk fire period will be... reached. Dennison says he hopes that in future years this method can be used to better plan for the start of high fire danger. Fire agencies could use th...Extracting eggs from pre-pubertal cancer patients brings hope for future fertility
...ggs from the ovarian tissue of girls as young as 5 years old, the 23rd annual conference of the European So...nd eggs in the follicles of girls between 5 and 10 years old who had not reached puberty. We were able to extract oocytes using needle aspiration from very......this population group aged between 6 months and 10 years old, registered lower beta-endorphin levels than other children of the same age. These levels were even lower in children whose both parents were alcohol abusers, the researcher states. According to researcher, although alcohol consumption does not......player of the immune system. MIF was identified 40 years ago but it was only recently that scientists discovered its role as a pro-inflammatory substance. MIF has now been linked to many autoimmune and inflammatory diseases - such as diabetes and sepsis - and Al-Abed, an organic chemist by training, has b...New dynamic brace developed to advance clubfoot treatment
...ns their feet away from the body for three to four years following the initial casting treatment. The brace has open-toed, high-top shoes attached to a shoulder-width fixed metal bar. Because of skin blistering and the brace's restriction of leg motion, many parents used the brace less than had been prescr...Breast cancer prognosis runs in the family
...are over 60 percent more likely to die within five years if they develop the disease. Mikael Hartman from...nt of daughters whose mothers had died within five years survived. Being sister to a woman who had died of breast cancer within five years gave a 70 percent ...Bright future for nano-sized light source
...es it to where atomic force microscopy was some 10 years ago. He also says that this technology is not intended to replace existing microscopy technologies, but will enable researchers to do things that cannot be done with current technology. Still, this nanowire light source technology, if developed to ...New genetic test developed at Emory advances detection and diagnosis of muscular dystrophy
...heir families," says Dr. Hegde. In the last five years DMD research has accelerated, resulting in more knowledge about the role of the dystrophin gene and an increased understanding about what happens to a muscle cell lacking the dystrophin protein. Researchers around the world are investigating a number...Early environmental exposure may accelerate age-related neurodegeneration
...posure. The effect was even more pronounced at two years of age, the human equivalent of 6070 years. A subset of mice that received the antioxidant at the same time that they were exposed to paraquat exhibited reduced levels of dopamine-producing neuron death, suggesting they were protected from oxidat......olvement in the sustainability process for fifteen years and suggests that, "It still feels as though we are collectively not prepared to ask the really difficult questions about what happens next if, as seems likely, all our efforts to head off a crisis come to nothing." He adds that, "Our impending demis...Desertification: UN experts prescribe global policy overhaul to avoid looming mass migrations
...cation is an estimated 50 million over the next 10 years a sweep of migrants worldwide equal in number to the entire population of South Africa or South Korea. Addressing desertification is a critical and essential part of adaptation to climate change and mitigation of global biodiversity losses, says P......ease a females chances for survival. During El Nio years marine iguanas have a hard time finding food, and those that start the season at a low body weight are less likely to live through it. To make these costs worthwhile, the genetic or other payoffs females gain from their chosen mates must be substan...