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BEIJING, Jan. 10 (Xinhuanet) -- Conflicts among hundreds of scalpers raring to stock up on the new iPhone 4S are casting a shadow over the gadget's launch on the Chinese mainland on Friday.Over the weekend, scalpers from two groups bickered and shoved each other when standing in line to purchase iPhone 4 at Apple's Sanlitun store, said witnesses.Workers from two Apple stores in Beijing told China Daily the stores have not started online bookings for the iPhone 4S so far."More than 1,000 of us have gathered to buy all the available iPhone 4 this morning," said a scalper hawking the phone outside the Sanlitun store on Sunday."We'll come again on Friday for iPhone 4S. You'll have no hope of getting an iPhone 4 or 4S from the store, but only from us."The scalpers are asking 4,450 yuan (705 U.S. dollars) for an 8-gigabyte iPhone 4, and 5,450 yuan for a smuggled iPhone 4S. Apple sells an 8-gigabyte iPhone 4 on the mainland for 3,988 yuan.An Apple employee at the Sanlitun store who declined to give her name told China Daily on Monday that the store was aware the scalpers may be planning to besiege the iPhone 4S launch, and the store has prepared for that.Calls to the public relations office of Apple China went straight to voice mail.Police of the Sanlitun police station refused China Daily's interview request.An officer of the property management company of the Sanlitun Village shopping mall, where the store is located, said on Sunday they had not been informed about the weekend fracas outside of the Apple store.But on Monday afternoon, staff members of the company dispersed the scalpers by sealing off part of the store's entrance.Workers at the Sanlitun store and property management staff confirmed two groups of scalpers fought on Saturday afternoon and Sunday when jumping the line or stopping each other to pay to get an iPhone 4.Since October 2010, Apple has ceased direct sales of iPhone 4 at its retail outlets in Beijing and Shanghai and is only accepting online orders or reservations and schedules pick-up at stores to curb rampant scalping.But the registration system for reserve and pick-up has become "momentarily unavailable because of heavy traffic volume" in recent days, said Apple's website.A scalper in his 30s outside the Sanlitun store boasted they had "hacked" Apple's reservation page. He described himself an "unofficial salesman" of Apple.Defending the actions of scalpers that lead to consumers having to pay more, he said "it's not our fault but Apple's, because they put too few products in the mainland market."This is not the first time scalpers have targeted Apple products.Two men and two women suffered minor injuries outside the Sanlitun store during a clash between a worker and angry customers as Apple fans waited to buy iPhone 4 and the newly released iPad 2 in May 2011.According to reports, the incident started when a worker confronted an alleged scalper for jumping the line. This led to a verbal conflict in which the alleged scalper was thrown against the corner of an outside wall, causing injuries to his face and wrist

WASHINGTON, Dec. 7 (Xinhua) -- Drugs that affect the levels of an important brain protein involved in learning and memory reverse cellular changes in the brain seen during aging, according to an animal study published Wednesday in the Journal of Neuroscience. The findings could one day aid in the development of new drugs that enhance cognitive function in older adults.Aging-related memory loss is associated with the gradual deterioration of the structure and function of synapses (the connections between brain cells) in brain regions critical to learning and memory, such as the hippocampus.Recent studies suggested that histone acetylation, a chemical process that controls whether genes are turned on, affects this process. Specifically, it affects brain cells' ability to alter the strength and structure of their connections for information storage, a process known as synaptic plasticity, which is a cellular signature of memory.In the current study, Cui-Wei Xie, of the University of California, Los Angeles, and colleagues found that compared with younger rats, hippocampi from older rats have less brain-derived neurotrophic factor (BDNF) -- a protein that promotes synaptic plasticity -- and less histone acetylation of the Bdnf gene. By treating the hippocampal tissue from older animals with a drug that increased histone acetylation, they were able to restore BDNF production and synaptic plasticity to levels found in younger animals."These findings shed light on why synapses become less efficient and more vulnerable to impairment during aging," said Xie, who led the study. "Such knowledge could help develop new drugs for cognitive aging and aging-related neurodegenerative diseases, such as Alzheimer's disease," she added.

BEIJING, Dec. 30 (Xinhua) -- China's quality watchdog said Friday that the latest checks by testing organizations did not find excessive levels of aflatoxin in milk products made by Chinese dairies.The special checks were launched after the General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) reported on Dec. 23 that two batches of milk products made by two separate domestic dairies, including heavyweight Mengniu Dairy Group, were found to contain high levels of the cancer-causing toxin.A brief statement on the government agency's website Friday said the checks have covered major makers, including Mengniu, Yili Industrial Group, Bright Dairy, and Sanyuan Food.An AQSIQ official said earlier the toxin had originated from cows eating mildewed feed, citing reviews by experts. The toxin would disappear if the animals stop eating the rotten feed, the official said.Aflatoxin is produced by a fungus that commonly grows on crops such as grain and peanuts. High levels of the toxin may lead to cancer in some animals.

SAN FRANCISCO, Oct. 5 (Xinhua) -- Apple co-founder and longtime Chief Executive Officer Steve Jobs passed away on Wednesday."Steve died peacefully today surrounded by his family," Jobs' family said in a statement."We are grateful for the support and kindness of those who share our feelings for Steve. We know many of you will mourn with us, and we ask that you respect our privacy during our time of grief," said the statement.Apple's website has changed to "Steve Jobs: 1955-2011," along with the most iconic picture in which the scraggly bearded charismatic visionary posed with one hand up to his chin.Photo taken on Oct. 5, 2011 shows photo of Steve Jobs on the front page of www.apple.com. Apple Board of Directors announced that co-founder and former Chief Executive Officer Steve Jobs passed away on Wednesday"Apple has lost a visionary and creative genius, and the world has lost an amazing human being," the company said in a statement. "Those of us who have been fortunate enough to know and work with Steve have lost a dear friend and an inspiring mentor. Steve leaves behind a company that only he could have built and this spirit will forever be the foundation of Apple."Apple are asking for "thoughts, memories and condolences" to be shared by emailing rememberingsteve@apple.com.Apple Board of Directors also said in a statement that "Steve's brilliance, passion and energy were the source of countless innovations that enrich and improve all of our lives. The world is immeasurably better because of Steve."According to a memo sent by CEO Tim Cook, Apple is planning a celebration of Jobs' life for employees that will take place soon.Jobs took a medical leave of absence earlier this year, the third in his battle with pancreatic cancer that began in 2004. On Aug. 24, he stepped down as Apple CEO, saying "I have always said if there ever came a day when I could no longer meet my duties and expectations as Apple's CEO, I would be the first to let you know. Unfortunately, that day has come."Jobs recommended former CEO Tim Cook take his place as CEO. On Tuesday, Cook gave his first product announcement as CEO unveiling the new iPhone 4S.

BEIJING, Jan. 1 (Xinhua) -- President Hu Jintao, along with other Chinese leaders, celebrated the New Year with political advisors Sunday morning in Beijing and delivered an important speech.Hu and the other members of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee Wu Bangguo, Wen Jiabao, Jia Qinglin, Li Changchun, Xi Jinping, Li Keqiang, He Guoqiang and Zhou Yongkang attended a tea party held by the National Committee of the Chinese People's Political Consultative Conference (CPPCC).The party was presided over by Jia Qinglin, chairman of the CPPCC National Committee.The leaders were joined by senior members of the central committees of non-Communist parties and the All-China Federation of Industry and Commerce, personages without party affiliation, officials of the central government and representatives from all walks of life and all ethnic groups in Beijing.