梅州合理人流总共要多少钱(梅州微整形哪好) (今日更新中)

LOS ANGELES, April 18 (Xinhua) -- Sugarcane has the effect of cooling temperatures, thus playing role in stemming global warming, a new study has found.Sugarcane does so by reflecting sunlight back into space and by lowering the temperature of the surrounding air as the plants " exhale" cooler water, according to the study conducted by researchers at the Carnegie Institution's Department of Global Ecology.The researchers used data from hundreds of satellite images over 733,000 square miles (about 1,173 square kilometers) in Brazil, where sugarcane is widely grown. They measured temperature, reflectivity (also called albedo), and evapotranspiration -- the water loss from the soil and from plants as they exhale water vapor.The findings showed that expansion of sugarcane in areas previously occupied by other Brazilian crops cools the local climate.Converting from natural vegetation to crop/pasture on average warmed the cerrado by 2.79 Fahrenheit (1.55 Centigrade, but that subsequent conversion to sugarcane, on average, cooled the surrounding air by 1.67 Fahrenheit (0.93 Centigrade), the researchers said in the study published in the April issue of Nature Climate Change."We found that shifting from natural vegetation to crops or pasture results in local warming because the plants give off less beneficial water. But the bamboo-like sugarcane is more reflective and gives off more water -- much like the natural vegetation," said lead researcher Scott Loarie. "It's a potential win-win for the climate -- using sugarcane to power vehicles reduces carbon emissions, while growing it lowers the local air temperature."Brazilians are world leaders in using biofuels for gasoline. About a quarter of their automobile fuel consumption comes from sugarcane, which significantly reduces carbon dioxide emissions that otherwise would be emitted from using gasoline.The researchers emphasized that the beneficial effects are contingent on the fact sugarcane is grown on areas previously occupied by crops or pastureland, and not in areas converted from natural vegetation. It is also important that other crops and pastureland do not move to natural vegetation areas, which would contribute to deforestation.So far most of the thinking about ecosystem effects on climate considers only impacts from greenhouse gas emissions. But according to co-researcher Greg Asner, "It's becoming increasingly clear that direct climate effects on local climate from land-use decisions constitute significant impacts that need to be considered core elements of human-caused climate change."

WASHINGTON, April 25 (Xinhua) -- Study by scientists at the Rockefeller University shows that anti-inflammatory drugs reduce the effectiveness of the most widely used class of antidepressant medications, the selective serotonin reuptake inhibitors (SSRIs), taken for depression and obsessive-compulsive disorder and anxiety disorders.This discovery, published online Monday in the Proceedings of the National Academy of Sciences, may explain why so many depressed patients taking SSRIs do not respond to antidepressant treatment and suggests that this lack of effectiveness may be preventable.The study may be especially significant in the case of Alzheimer's disease. Such patients commonly suffer from depression and unless this can be treated successfully, the course of the illness is likely to be more severe. Depression in the elderly is also a risk factor for developing Alzheimer's Disease and researchers have suggested that treating depression in the elderly might reduce the risk of developing the disease.In the recent study, investigators treated mice with antidepressants in the presence or absence of anti-inflammatory drugs. They then examined how the mice behaved in tasks that are sensitive to antidepressant treatment. They found that the mice's behavioral responses to antidepressants were inhibited by anti- inflammatory/analgesic treatments.They then confirmed these effects in a human population. Depressed individuals who reported anti-inflammatory drug use were much less likely to have their symptoms relieved by an antidepressant than depressed patients who reported no anti- inflammatory drug use. The effect was rather dramatic since, in the absence of any anti-inflammatory or analgesic use, 54 percent of patients responded to the antidepressant, whereas success rates dropped to approximately 40 percent for those who reported using anti-inflammatory agents."Many elderly individuals suffering from depression also have arthritic or related diseases and as a consequence are taking both antidepressant and anti-inflammatory medications. Our results suggest that physicians should carefully balance the advantages and disadvantages of continuing anti-inflammatory therapy in patients being treated with antidepressant medications," leader author Paul Greengard said.

BEIJING, Feb. 3 (Xinhua) -- Thursday marked the welcoming of the Chinese Lunar New Year, or Spring Festival. Celebrations for the Year 2011, also Year of the Rabbit, have been held all over the world, making the Chinese New Year a brilliant symbol in the world's culture.The Chinese New Year is a good opportunity for China and the world to get closer and enhance their friendship. The celebrations also provided a precious occasion for people outside China to feel the unique charm of Chinese culture.In New York, the iconic Empire State building was illuminated in red and gold to mark the Chinese New Year.Chinese handicrafts including festive lanterns, florid Spring Festival paintings and red paper-cut were displayed in the windows on the first floor of the iconic 1,454-foot tall building.Martin Corie, a local resident, said the sea of redness and the strong festival flavor made him feel like being in China.In Paris, a colorful parade featuring music and dancing in the 13th arrondissement in the southern part of the city, attracts more than 100,000 people each year.On Wednesday night, or Lunar New Year's Eve, a special program featuring Chinese folk music was broadcast by the national Radio France.In Cairo, a cultural temple fair was held in Al-Azhar Park. Local visitors were greatly attracted by performances of the Chinese Suona horn (a woodwind instrument) and Chinese traditional art "shadow play." They also enjoyed Chinese embroidering and the practice of the traditional Chinese medical science.

WASHINGTON, April 4 (Xinhua) -- New research from the University of Pennsylvania School of Medicine has revealed an increased incidence of major adverse cardiac events (MACE), such as heart attack, stroke, and cardiovascular death, in patients with severe psoriasis. The study results were reported Monday at the annual American College of Cardiology meeting in New Orleans.Psoriasis is a common inflammatory skin disease, and if severe, has been demonstrated to be a risk factor for cardiovascular disease. However, the degree to which psoriasis is associated with MACE has not been defined.In a cohort study analyzing data from a general practice research database, Lead author Nehal Mehta, director of Inflammatory Risk in Penn's Preventive Cardiology program, and colleagues reviewed the case histories of over 3,600 patients with severe psoriasis and 14,300 controls. They found that patients with severe psoriasis have a 53 percent increased incidence of MACE compared to the general population. They also found that having a diagnosed case of severe psoriasis confers an additional ten-year risk of six percent on MACE.Previous work from Mehta and colleagues found that the risk of death from cardiovascular disease increased by 57 percent in patients with severe psoriasis. In addition, the relative risk of death from cardiovascular disease was even higher in younger patients, who were as young as age 40.The researchers conclude that this new estimate of increased ten-year MACE may warrant more aggressive strategies for treatment of cardiovascular risk factors in patients with psoriasis.

来源：资阳报