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BEIJING, May 25 (Xinhua) -- A researcher with the Chinese Academy of Agricultural Sciences (CAAS) said Wednesday that plant hormones, if used properly, are not a risk to human health."Irregular use of plant growth substances may cause plants to grow excessively fast or affect the taste, but will not cause harm to human health," Ye Zhihua said in an interview with Xinhua.His remarks come after media reports in China about "exploding watermelons," caused by the excessive use of phytohormone, have aroused public concern over the safety of hormones that stimulate plant growth.Ye said plant hormones used to promote growth have the same or similar effects as natural plant hormones, and fruit and vegetables sold at the market carried limited residue of the hormones.More than 100 types of plant hormones, such as ethephon and gibberellin acid, are used in agriculture and forestry sectors around the world, Ye said, adding 38 types of plant hormones have been registered in China.For example, seven plant hormones including thidiazuron and nucleotide are approved for use on cucumbers in China. The purpose is to stimulate the growth of female flowers and increase fruit yields, Ye said.Ye added that China places plant hormones in the category of pesticides control, which means the hormones are subject to strict management from production to utilization.

LOS ANGELES, May 12 (Xinhua) -- A subsurface ocean of molten or partially molten magma exists beneath the surface of Jupiter's volcanic moon Io, the Jet Propulsion Laboratory (JPL) said on Thursday."The finding heralds the first direct confirmation of this kind of magma layer at Io and explains why the moon is the most volcanic object known in the solar system," JPL said in a press release posted on its website.The finding was based on new data analysis from NASA's Galileo spacecraft, said JPL.The research was conducted by scientists at the University of California, Los Angeles; the University of California, Santa Cruz;, and the University of Michigan, Ann Arbor. The study is published this week in the journal Science, JPL said."Scientists are excited we finally understand where Io's magma is coming from and have an explanation for some of the mysterious signatures we saw in some of the Galileo's magnetic field data," said Krishan Khurana, lead author of the study and former co- investigator on Galileo's magnetometer team at UCLA."It turns out Io was continually giving off a 'sounding signal' in Jupiter's rotating magnetic field that matched what would be expected from molten or partially molten rocks deep beneath the surface."Io produces about 100 times more lava each year than all the volcanoes on Earth, according to data released by JPL in Pasadena, Los Angeles.While Earth's volcanoes occur in localized hotspots like the "Ring of Fire" around the Pacific Ocean, Io's volcanoes are distributed all over its surface, JPL said, adding that a global magma ocean about 30 to 50 km beneath Io's crust helps explain the moon's activity."It has been suggested that both the Earth and its moon may have had similar magma oceans billions of years ago at the time of their formation, but they have long since cooled," said Torrence Johnson, a former Galileo project scientist based at JPL, an affiliation with NASA."Io's volcanism informs us how volcanoes work and provides a window in time to styles of volcanic activity that may have occurred on the Earth and moon during their earliest history," said Johnson, who was not directly involved in the study.NASA's Voyager spacecraft discovered Io's volcanoes in 1979, making that moon the only body in the solar system other than Earth known to have active magma volcanoes. The energy for the volcanic activity comes from the squeezing and stretching of the moon by Jupiter's gravity as Io orbits the largest planet in the solar system.Galileo was launched in 1989 and began orbiting Jupiter in 1995. Unexplained signatures appeared in magnetic field data from Galileo flybys of Io in October 1999 and February 2000. After a successful mission, the spacecraft was intentionally sent into Jupiter's atmosphere in 2003.

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.

BEIJING, Jan. 26 (Xinhua) -- A senior Chinese official has called on the country's judicial officers and other law enforcers to maintain social justice and harmony by defusing and solving social contradictions.Zhou Yongkang, a member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee, made the remark at a meeting to call on law enforcement officials to learn from Liu Yumei, who had served in grassroots judicial work for more than 20 years.During her service in a local community in southwest Chongqing Municipality, Liu Yumei had successfully reconciled more than 1,500 civil disputes and defused more than 10 possibly violent events. Liu died of illness from overwork in Jan. 2010 at only 46 years old.Zhou said law enforcement organs should regard preventing and reducing social disputes as an important job, and judicial officers should help people with their problems during their law-enforcement practices.

BEIJING, Jan. 27 (Xinhua) -- The State Council, China's cabinet, has approved on a trial basis the launch of property tax reforms in some cities.The pilot reform will tax property owner-occupiers for the first time, officials from the Ministry of Finance, the State Administration of Taxation and the Ministry of Housing and Urban-Rural Development said Thursday.China's 1986 provisional property tax regulations did not tax owner-occupiers.The cities themselves will decide the details of the real estate levy. File photo taken on Apr. 23, 2010 shows residential areas in Shanghai, east China. The State Council, China's cabinet, has approved on a trial basis the launch of property tax reforms in some cities. Shanghai and Chongqing are cities that will trial the tax first. Shanghai sets its property tax rate at 0.4 to 0.6 percent. Municipalities impose property taxes on owners of real estate based upon the value of the property.Shanghai and Chongqing are cities that will trial the tax first.Shanghai set its property tax rate at 0.4 to 0.6 percent. Chongqing sets its at 0.5 to 1.2 percent.