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发布时间: 2025-06-02 14:18:51北京青年报社官方账号
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  中山华都评论如何   

CHENGDU, May 8 (Xinhua) -- As a brand-name herbal capsule for cardiovascular disease in China, Di'ao Xinxuekang only needs to wait for another 15 years before reaching the EU market."The Dutch medical supervisors have recognized it as a qualified drug, but we still lack the evidence of 15-year presence in the EU market," said Ji Jianxin, a research manager with the drug's developer Di'ao Group based in southwest China's Sichuan Province.Di'ao, one of the largest Traditional Chinese Medicine (TCM) manufacturers, has been quite depressed, as many other TCM enterprises in China, by a European Union directive on traditional herbal medicinal products fully implemented from the beginning of this month.The directive requires that all herbal medicinal products, must obtain a medical license from any EU member state before it can be allowed in the EU market.It introduced a so-called simplified registration procedure with a seven-year transition period for traditional herbal medicinal products to be licensed, including Chinese and Indian ones.However, not a single Chinese herbal medicinal product has been granted the license so far, mainly due to the prohibitive registration cost and lack of required evidence to prove the product had a 30-year history of safe use, including 15 years in the EU.With a history of more than 2,000 years, TCM did not enter into the EU market until mid-1990s, and it has been imported into the EU and sold to European customers as food supplements instead of drugs.Most Chinese producers and importers did not reserve the customs papers a decade ago, thus unable to prove the 15-year use of their products in European markets.While TCM's globalization won't be doomed by one single EU directive as TCM export value to EU only takes up 14 percent of the total in 2010, experts and industry insiders still have had serious concerns about its future."Most TCM even don't have standardized labels that can help consumers to find out its origin," said Xian Sheng, from the China Association of TCM Export Companies.

  中山华都评论如何   

MOSCOW, Jan. 21 (Xinhua) -- Russian and Chinese companies started construction of an iron ore dressing plant Friday in the Evreyskaya Autonomous Oblast to provide high-grade iron ore to the Asia Pacific region, including China.Yury Makarov, chief executive officer of IRC Ltd., told Xinhua the plant would reach its designed capacity in 2013 at 10 million tons of iron ore and 3.2 million tons of iron ore concentrates, which contain up to 65 percent iron.Makarov said that 20 percent of the iron ore concentrates, which are natural iron ore processed through crushing, grinding and dressing, would be used to meet demands of Russia's far east and the rest would go to the Asia-Pacific market. Currently, China imports large amounts of concentrates from Brazil, Australia and India."We are very open to interaction with various countries of the Asia-Pacific region, especially China. The volume of processed iron ore has been increasing every year. We will be happy to deliver iron ore to your companies as well as any other consumers who are willing to purchase our products," he said.The plant will draw its resources from the Kimkanskoye and Sutarskoye deposits and send its products through the Khabarovsk Krai and the Suifenhe port to China.The plant is only 7 km from the Trans-Siberian Railway. A railway bridge is being planned between Evreyskaya Oblast and Heilongjiang to further shorten the supply route.Total investment in the plant is 400 million U.S. dollars, with 340 million in loans from the ICBC (Industrial and Commercial Bank of China) in China. Interest under the facility will be charged at 2.8 percent above LIBOR per annum. The China National Electric Engineering Co, Ltd is tasked with the construction of the plant.Makarov said he was very optimistic about the future of the plant and the development of relations between the Russia's far east and China's northeastern region.IRC Ltd. is a metal unit of Russian gold miner Petropavlovsk PLC. It became the second Russian company to be listed on the HK stock exchange, when it started trading on Oct. 21.

  中山华都评论如何   

WASHINGTON, May 2 (Xinhua) -- Rice originated in China, a team of U.S. genome researchers has concluded in a study tracing back thousands of years of evolutionary history through large-scale gene re-sequencing.Their findings, which appear Monday in the latest issue of the Proceedings of the National Academy of Sciences (PNAS), indicate that domesticated rice may have first appeared as far back as approximately 9,000 years ago in the Yangtze Valley of China. Previous research suggested domesticated rice may have two points of origin -- India as well as China.Asian rice, Oryza sativa, is one of world's oldest crop species. It is also a very diverse crop, with tens of thousands of varieties known throughout the world. Two major subspecies of rice -- japonica and indica -- represent most of the world's varieties. Sushi rice, for example, is a type of japonica, while most of the long-grain rice in risottos are indica.Because rice is so diverse, its origins have been the subject of scientific debate. One theory -- a single-origin model -- suggests that indica and japonica were domesticated once from the wild rice O. rufipogon.Another -- a multiple-origin model -- proposes that these two major rice types were domesticated separately and in different parts of Asia. The multiple-origin model has gained currency in recent years as biologists have observed significant genetic differences between indica and japonica, and several studies examining the evolutionary relationships among rice varieties supported more than domestication in both India and China.In the PNAS study, the researchers re-assessed the evolutionary history, or phylogeny, of domesticated rice using previously published datasets, some of which have been used to argue that indica and japonica rice have separate origins. Using more modern computer algorithms, however, the researchers concluded these two species have the same origin because they have a closer genetic relationship to each other than to any wild rice species found in either India or China.In addition, the study's authors examined the phylogeny of domesticated rice by re-sequencing 630 gene fragments on selected chromosomes from a diverse set of wild and domesticated rice varieties. Using new modeling techniques, which had previously been used to look at genomic data in human evolution, their results showed that the gene sequence data was more consistent with a single origin of rice.In the study, the investigators also used a "molecular clock" of rice genes to see when rice evolved. Depending on how the researchers calibrated their clock, they pinpointed the origin of rice at possibly 8,200 years ago, while japonica and indica split apart from each other about 3,900 years ago. The study's authors pointed out that these molecular dates were consistent with archaeological studies.Archaeologists have uncovered evidence in the last decade for rice domestication in the Yangtze Valley beginning approximately 8, 000 to 9,000 years ago while domestication of rice in the India's Ganges region was around about 4,000 years ago."As rice was brought in from China to India by traders and migrant farmers, it likely hybridized extensively with local wild rice," explained New York University biologist Michael Purugganan, one of the study's co-authors. "So domesticated rice that we may have once thought originated in India actually has its beginnings in China."

  

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."

  

BEIJING, Jan. 27 (Xinhua) -- China Thursday allocated 1.039 billion yuan (157 million U.S. dollars) for areas hit by natural disasters last year.The relief funds, jointly allocated by the Ministry of Civil Affairs and the Ministry of Finance, will be used for disaster survivors to buy food, clothes, quilts and heating devices.A Ministry of Civil Affairs statement said local finance and civil affairs authorities have been ordered to publicly disclose relevant information.In 2010, several natural disasters hit China, including the 7.1-magnitude Yushu earthquake that left 2,200 people dead and the Zhouqu mudslide that left 1,700 people dead or missing.On Nov. 18, 2010, the two ministries jointly allocated 4.1 billion yuan (617 million U.S. dollars) to help natural disaster survivors pass the winter.

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