[quick news] on September 30, 2018, ammonia, the volatiles from fertilizer and feces, was the main cause of haze?

Is ammonia, the volatiles from fertilizer and manure the main cause of haze? The components of haze and their interaction in the atmosphere have always been a mystery A US study found that about 3 / 4 of the components of haze are ammonium nitrate, and the ammonia usually comes from farms that use liquid amino fertilizer or produce a lot of animal manure The article was recently published in science "Ammonia is terrible," said mark zondlo, an environmental engineer at Princeton University "It's really one of the worst gases in the atmosphere." Once ammonia enters the atmosphere, it will combine with other compounds to produce small particles with a diameter of less than 2.5 microns High concentration of ammonia seems to aggravate haze, and these small particles stay in human lungs and blood, which will lead to disease or premature death Https:// and vrhealth cooperated to develop VR pain and anxiety management therapy According to foreign media reports, oculus and vrhealth cooperated to develop a series of medical function VR applications that can be used in combination with the company's hardware products At present, the two companies are planning to design a pain management product for women facing childbirth pain and cancer patients undergoing chemotherapy, as well as a general anxiety management product for before and after operation According to ERAN orr, CEO of vrhealth, VR has the ability to alleviate the pain, provide a transitional environment for the inability to treat, and train ADHD children with attention deficit VR will improve people's lives by influencing the healthcare industry, and help doctors provide more suitable personalized medical services for patients Https:// Shanghai Jiaotong University reveals the secret of new mechanism of sleep difficulty, which always arouses human curiosity Why do we need to sleep? Why do you sleep at night and wake up during the day? In our body, is there an invisible hand, which is ticking the clock every day, controlling every regular work and rest? These problems are also the subject of many neurobiologists A research result of Pingyong group of Bio-X center of Shanghai Jiaotong University reveals the role of a voltage-gated potassium ion channel Kv4 in sleep regulation The related research results were recently published in the Journal of neuroscience Experts say the study is the first to directly prove the role of Kv4 in sleep regulation, and it also provides a possible way to study insomnia Http:// new healing technology: scientists "change" new skin at the trauma site It is well known that a large area of skin trauma, including trauma caused by serious burns, bedsores or chronic diseases such as diabetes, can bring great pain to patients, sometimes even life-threatening When the skin surface breaks, the epithelial cells that make up the outer layer of the skin will migrate to the wound to try to repair the wound and seal the wound, but this healing process will become very difficult in large wounds, especially for the elderly Recently, scientists from the Salk Institute in the United States have developed a new technology that will make plastic surgery to repair large area of skin trauma a history in the future The new technology reprogrammes the cells into stem cell like state, so that the cells of open wound can be directly transformed into new skin cells It can be used to cure skin damage and resist the effects of aging, and help us better understand skin cancer The research results have been published in nature recently Https:// China's "low cadmium rice" has met the technical conditions for large-scale extension From September 25 to 28 this year, experts from China agricultural society, South China Agricultural University, Chinese Academy of Sciences and other units and departments made comprehensive comments on the results of the multi-point ecological test Liu Yaoguang, academician of the Chinese Academy of Sciences and professor of South China Agricultural University, and other experts said that the cadmium content of rice in this multi-point experiment was below 0.07 mg / kg, lower than the national standard of 0.2 mg / kg and the international standard of 0.4 mg / kg This shows that the performance of "low cadmium rice" is relatively stable in different CD content soil and different cultivation methods, which provides technical support for fundamentally solving the problem of "cadmium rice" in China http://