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BEIJING, April 24 (Xinhua) -- The Chinese government has ordered food companies to keep clear and intact records of all their production and selling operations as part of the efforts to prevent the illegal use of food additives.All food manufacturing and management companies must examine all products in stock for any trace of illegal food additives and keep records of the results in accordance with laws and regulations, according to a circular released Sunday by the food safety committee under the State Council, or China's Cabinet.The circular came days after Vice Premier Li Keqiang warned of the great harm from illegal additives in food, promising "a firm attitude, iron-hand measures and more efforts" in dealing with the problem.Companies that fail to keep genuine and intact records and documents will be ordered to reform, and those providing fake records and certificates will be suspended from operations and punished accordingly, said the circular.According to the circular, it is strictly forbidden to produce and sell non-edible materials that are likely to be used in food production without official certificates, and authorized production companies of these materials must adopt a real-name selling system.These materials, including those banned in animal feed and drinking water, should not be sold to food and feed companies, the circular added.A series of food safety scandals emerged in China recently. In one of the latest cases, steamed buns in Shanghai were reported, last week, to have been dyed, sold past their expiration date, or laced with coloring additives to mislead consumers.

BEIJING, Jan. 22 (Xinhua) -- Chinese President Hu Jintao's latest state visit to the United States bore rich fruit and opened a new chapter of cooperation between the two countries, Foreign Minister Yang Jiechi said Saturday.The tour, from Tuesday through Friday, came at the beginning of the second decade of the 21st century, on the 40th anniversary of the resumption of contact between the two countries and on the opening year of China's 12th five-year plan for national socioeconomic development, Yang noted.Meanwhile, the international situation was witnessing deep and complicated changes, and the China-U.S. relationship was forging ahead with increasing momentum while inevitably encountering some differences and disputes, he said.Against such a backdrop, the Chinese president held frank and in-depth talks with his U.S. counterpart, Barack Obama, and many other senior political figures, and reached important consensus on bilateral relations and a host of major regional and global affairs, Yang said.During the tightly scheduled trip, which saw Hu attend nearly 20 events in Washington and Chicago within 68 hours, the Chinese leader also reached out to the U.S. public, conveying China's resolution to advance China-U.S. ties, highlighting China's commitment to peaceful development and presenting China's image of peace, development, opening-up and progress, Yang said.The U.S. and international media, he added, attached great importance to and spoke highly of Hu's trip, hailing it as a historic visit at a crucial moment and whose significance was manifested partly in the top level reception with full pomp and ceremony given by the U.S. government.In summary, the latest step in China-U.S. diplomacy achieved rich results and cast a far-reaching influence not only upon the two countries themselves but upon the whole world, the Chinese foreign minister said.

BEIJING, May 11 (Xinhuanet) -- New retirees suddenly confronted with plenty of time on their hands might be happy to learn that reading keeps one mentally alert and abreast of current aff airs, says Ursula Lenz of Germany's working group of senior citizens' organizations, BAGSO.Growing old can present difficulties such as failing eyesight or problems concentrating, but experts encourage the elderly not to give up on reading and to adapt to their situation.From the perspective of health professionals, there are many advantages to reading books or newspapers for senior citizens.Reading helps the elderly keep a sharp mind. The ability to transform words into mental images is good for cognitive performance. Reading also improves vocabulary, language use and the ability to concentrate, according to Simone Helck from the Kuratorium Deutsche Altershilfe, an organization in Germany that helps promote and develop strategies for taking care of the elderly.So, what exactly happens in the brain when we read?"The brain builds new synapses, junctions between the neurons, when it's stimulated such as during reading," says Manfred Gogol, a physician and president of Germany's Society for Gerontology and Geriatrics.Gogol recommends reading books that deal with subjects that are of special interest to the reader. If a long novel seems like too much work, then try a novella or collection of short stories.But a prerequisite for reading is that any sight defect is corrected by an optician.In response to the needs of elderly people, publishers print books with large typefaces and bigger line spacing. Lenz says it is worthwhile asking for large print books in libraries and bookshops.But no matter what the reading matter is, another important aspect is being able to exchange opinions about a book with other people. Whether it's a society magazine, highbrow literature or a daily newspaper, there is always something to talk about.

LOS ANGELES, March 2 (Xinhua) -- Those who take a nap are more likely to have lower levels of blood pressure despite stress, said a new study in the latest issue of International Journal of Behavioral Medicine available on Wednesday.In the study, researchers at Sarah Conklin of Allegheny College in Meadville, Pennsylvania examined 85 healthy university students, who were divided into two groups, with one group taking an hour- long nap during the day, and the other group having no time to sleep. Both groups were given a mental stress test.The study found that participants in both groups experienced increase in blood pressure and pulse rates when they took the stress test, but the average blood pressure of those who slept for at least 45 minutes was significantly lower after the stress test than it was for those who did not sleep.The researchers drew the conclusion that a daytime nap of at least 45 minutes may help stressed-out people lower their blood pressure and protect their heart."Our findings suggest that daytime sleep may offer cardiovascular benefit by accelerating cardiovascular recovery following mental stressors," the researchers said in the study."Further research is needed to explore the mechanism by which daytime sleep is linked with cardiovascular health and to evaluate daytime sleep as a recuperative and protective practice, especially for individuals with known cardiovascular disease risk and those with suboptimal sleep quality," they added.Sleep deficiency is common in the United States, posing a long- term health threat. On average, Americans get nearly two hours less sleep a night than they did 50 years ago, according to background information provided by the journal.

SAN FRANCISCO, April 27 (Xinhua) -- Apple Inc. on Wednesday denied the alleged location-tracking practice of its mobile operating system, saying it will release software updates to make iPhone store less location information to quell public concerns over privacy.CLARIFICATION"Apple is not tracking the location of your iPhone. Apple has never done so and has no plans to ever do so," the company said in a statement."Users are confused, partly because the creators of this new technology (including Apple) have not provided enough education about these issues to date."According to the statement, the location data researchers saw on iPhone is a database of Wi-Fi hotspots and cell towers around users' current location that Apple is maintaining to help iPhone rapidly and accurately calculate its location when requested. It noted Apple cannot locate iPhone users based on Wi-Fi hotspot and cell tower data as the information is in an anonymous and encrypted form.Apple admitted that part of the location data (Wi-Fi hotspots and cell towers) is backed up on iTunes, which means it could be possible that people with access to iPhone users'computer may get their location information. It said a software update has been planned to cease the backing-up.It is also planning to provide an update to limit the data storage on iPhone, in response to questions that the device has been storing location data since the release of iOS 4 operating system last June.Apple said it is a bug that iPhone keeps storing location data even if its location services are disabled, noting it will fix this through a software update in the coming weeks.The company also reiterated its focus on personal information security and privacy."Pretty much what I expected at this stage. The response is measured and the update should fix the problem," Alasdair Allan, one of the two British researchers who first announced the discovery of stored location data on iPhone, said on his Twitter account.ALLEGATIONThe statement on Wednesday is Apple's first official response to the location-tracking allegations.Worries on the iPhone tracking issue first surfaced last Wednesday when two British researchers announced at a technology conference in California that iPhone has been collecting users' location information and storing the data since June 21, 2010.Last Friday, The Wall Street Journal reported its security analysts had found that Apple's iPhone and smartphones running Google's Android operating system regularly transmit users' locations back to the two companies respectively, which is part of their race to build databases capable of pinpointing people's locations via smartphones.The newspaper then reported on Sunday that its analysts had also found iPhone is collecting and storing user's location data even when location services are turned off.PRESSUREThe Cupertino, California-based company has been facing mounting pressure from lawmakers, customers as well as media reports following the revelations.The U.S. House Energy and Commerce Committee on Monday sent letters to six developers of mobile device operating systems, including Apple and Google, demanding Apple's explanation on implications of alleged tracking for individual privacy and federal communications policy.Also on Monday, Minnesota Senator Al Franken, chairman of the U. S. Senate Judiciary Subcommittee on Privacy, Technology and the Law, announced he had scheduled a mobile privacy hearing on May 10 and asked representatives from Apple and Google to speak at the hearing.Meanwhile, Lisa Madigan, Attorney General of U.S. state of Illinois, on Monday called for a meeting with Apple and Google executives on the location-tracking reports, citing her ongoing effort to protect consumers' personal information online.Last Friday, two iPhone users filed a class action suit against Apple in Tempa, Florida, accusing the company of invasion of privacy and computer fraud and seeking a judge's order to bar the alleged data collection.Last Thursday, U.S. congressman Edward Markey asked Apple CEO Steve Jobs to make a response within 15 business days or no later than May 12, saying "Apple needs to safeguard personal location information of its users to ensure that an iPhone doesn't become an iTrack."On Saturday, Markey called for a congressional investigation into the privacy practices of Apple and Google. In a statement, he made clear that he thinks the data collection is potentially dangerous, saying predators could have hacked into an iPhone or Android phone to find out children's location information.Apple is also reportedly being investigated in South Korea, France, Germany and Italy over the alleged tracking practice.