济南阴茎不勃起是什么原因(济南性生活无法射精怎么办) (今日更新中)

WASHINGTON, Oct. 13 (Xinhua) -- In a trial that included about 35,000 men, those who were randomized to receive daily supplementation with vitamin E had a significantly increased risk of prostate cancer, according to a study published this week in the Journal of the American Medical Association.The study followed more than 35,533 men 50 or older at 427 sites in the United States, Canada and Puerto Rico. The men were divided into four groups who took daily doses of 400 international units of Vitamin E and 200 micrograms of selenium; Vitamin E and a placebo that looked like selenium; selenium and a placebo that looked like Vitamin E; or two placebos. The recommended daily intake of Vitamin E is about 22.4 international units.The researchers from the Cleveland Clinic found that the rate of prostate cancer detection was greater in all treatment groups when compared with placebo but was statistically significant only in the vitamin E alone group -- a 17 percent increased rate of prostate cancer detection. The difference in rates of prostate cancer between vitamin E and placebo became apparent during the participants' third year in the trial. The elevated risk estimate for vitamin E was consistent across both low- and high-grade disease."The observed 17 percent increase in prostate cancer incidence demonstrates the potential for seemingly innocuous yet biologically active substances such as vitamins to cause harm. The lack of benefit from dietary supplementation with vitamin E or other agents with respect to preventing common health conditions and cancers or improving overall survival, and their potential harm, underscore the need for consumers to be skeptical of health claims for unregulated over-the-counter products in the absence of strong evidence of benefit demonstrated in clinical trials," the researchers said.

SAN FRANCISCO, Nov. 4 (Xinhua) -- Google is mulling a plan to offer paid cable-TV services to consumers, a move that could flare up a new wave of competition in the traditional TV business, U.S. media reported on Friday.According to The Wall Street Journal, the Internet search giant has considered adding video and phone services to a previously announced high-speed Internet service in two U.S. cities.People briefed on the plan told the newspaper that Google has discussed distributing major TV channels from companies like Walt Disney, Time Warner and Discovery Communications as part of the video service. The discussions were still exploratory and no final decisions have been made, said the report.Google said it does not comment on rumor or speculation.Whether it is a speculation or not, the reported plan reflects possible innovation and revolution for the traditional TV experience with the growth of high-speed Internet, which may become another lucrative battlefield all the technology giants will fight for.With the growth of home and mobile broadband services, more and more video contents become available for rental, purchase and streaming on desktop computers, tablet computers and smartphones.Competitions on the video streaming market have been increasingly fierce this year, among such services as Apple's iTunes, Amazon's Prime Video, NetFlix, Hulu Plus and Vudu, which is owned by Wal-Mart.Cable companies, facing a grim picture of being kicked out in the decades to come, also fought back with their own mobile apps and online streaming services.A new Steve Jobs biography revealed that the late Apple co- founder had been working on an Apple television."It would be seamlessly synced with all of your devices and with iCloud. It will have the simplest user interface you could imagine. I finally cracked it," Jobs told biographer Walter Isaacson in the book.Some analysts said the introduction of an Apple smart TV could bring a 100-billion-U.S.-dollar revenue opportunity for the Cupertino, California-based company.Last Friday, Google-owned YouTube announced a plan to launch 100 channels on its site with original professionally produced content. A new version of Google TV was also launched with new search tools that expand results from shows on cable to web-based services like NetFlix and Amazon.

WASHINGTON, Nov. 7 (Xinhua) -- U.S. researchers have demonstrated for the first time that the brain is a key player in regulating glucose (sugar) metabolism in humans.The findings, published Monday in the online edition of the Journal of Clinical Investigation, suggest that drugs targeting the brain and central nervous system could be a novel approach to treating diabetes."The brain is the body's only organ that needs a constant supply of glucose to survive, so it makes sense that it would have some say over how much glucose is produced," said study leader Meredith Hawkins, professor of medicine and director of the Global Diabetes Initiative at Yeshiva University, in a statement. "This role for the brain was demonstrated in earlier studies in rodents, but there was considerable controversy over whether the results could be applied to humans. We hope this study helps to settle the matter."In an earlier study in rodents, researchers showed that activation of potassium channels in the brain's hypothalamus sends signals to the liver that dampen its production of glucose. Those findings, published in Nature in 2005, challenged the conventional thinking that blood sugar production by the liver (the body's glucose factory) is regulated only by the pancreas (which makes insulin to metabolize glucose). But carefully performed studies on dogs, conducted at Vanderbilt University, failed to replicate the results, suggesting the Einstein findings in rodents might not be relevant to higher mammals, including humans.The current study, involving people, was aimed at resolving this controversy. Ten nondiabetic subjects were given oral diazoxide, a drug that activates potassium channels in the hypothalamus. (The drug is not used to treat diabetes.) Hormone secretion by the pancreas was controlled to ensure that any change in sugar production would only have occurred through the drug's effect on the brain. After the researchers administered the drug, blood tests revealed that patients' livers were producing significantly less glucose than before.Hawkins and her team then repeated this in rats, again giving diazoxide orally, achieving similar results. They confirmed that sufficient amounts of diazoxide crossed the blood-brain barrier to affect potassium channels in the hypothalamus. Additional experiments confirmed that diazoxide was working through the brain. Specifically, the researchers were able to completely block the effects of diazoxide by infusing a specific potassium channel blocker directly into the brain."This study confirms that the brain plays a significant role in regulating glucose production by the liver," said lead author Preeti Kishore, assistant professor of medicine. "We are now investigating whether this 'brain-to-liver' pathway is impaired in people with diabetes. If so, we may be able to restore normal glucose regulation by targeting potassium channels in the brain."

BEIJING, Oct. 26 (Xinhua) -- The central government allocated 935 million yuan (147 million U.S. dollars) Wednesday to areas hit by rain-triggered floods, the Ministry of Civil Affairs (MCA) said.The relief funds, jointly allocated by the MCA and the Ministry of Finance, will be used for disaster survivors to relocate, rebuild houses and buy daily necessities.The funds will also be delivered to the family members of the victims, according to the ministry.The funds will go to the flood-hit provinces of Shanxi, Henan, Hubei, Sichuan, Shanxi and Guangxi Zhuang Autonomous Region.The government already allocated 132 million yuan (20.6 million U.S. dollars) to disaster hit areas immediately after the floods happened in September.Rain-triggered floods and disasters left 97 people dead, 21 missing and 1.23 million affected in September in China's 11 provincial-level regions, and a total of 1.93 million people were relocated urgently to avoid further casualties.The disasters also caused an estimated 21 billion yuan (3.29 billion U.S. dollars) in direct economic losses, according to official data.

BEIJING, Jan. 15 (Xinhua) -- The winning of Ma Ying-jeou and Kuomintang (KMT) in Saturday's elections may open new chances for the peaceful development of cross-Strait relations.The results of the elections have indicated that the peaceful development of the cross-Strait relations is a correct path and has been widely recognized by the Taiwan people.Any persons and any political parties of Taiwan should follow this trend, so that they could earn recognition and support.Moreover, the victory of Ma and the KMT may represent a new opportunity for the development of the cross-Strait relations.With joint efforts of the two sides to fortify and enhance the existing mutual trust, there will be a even brighter prospect and further progresses in the cross-Strait talks, exchanges and cooperation.However, the two sides should be wary that the situation in the island is still complicated and the "Taiwan independence" stance will continue to haunt the cross-Strait relations development.There are still some long-term disputes and divergences existing between the two sides that await resolving.This year's elections were carried out under a background in which the cross-Strait relations have been significantly improved. The positive effects of the peaceful development of the cross-Strait relations have fully emerged.Over the past four years, the two sides of the Taiwan Strait have established a political mutual trust based on opposition to the "Taiwan independence" stance and adherence to the "1992 Consensus."The two sides resumed regular talks between the mainland's Association for Relations Across the Taiwan Straits (ARATS) and the Taiwan-based Straits Exchange Foundation (SEF) in 2008.The opening of "three direct links" of cross-Strait mail, trade, air and shipping services, has also pushed forward the cross-Strait economic cooperation into a brand-new stage.These achievements have brought about real benefits to the people on both sides of the Strait, especially the people in Taiwan.The cross-Strait economic cooperation has also helped the island's economy to buoy up from blows of the global financial crisis.The peaceful development of the cross-Strait ties have won a widespread support among the Taiwan people and it is also appreciated by the international community.During the election campaigns, whether to stick to the 1992 Consensus became a major field of cross fires among candidates. Ma had stood out and gained positive momentum with his cross-Strait policies.Numbers of Taiwanese notables, business tycoons as well as the small and medium-sized enterprise owners and the grassroots people have also expressed their stance for the "1992 Consensus" and their aspiration for further peaceful development of the cross-Strait ties.Under the public's pressure, the Democratic Progressive Party and its candidate Tsai Ing-wen have to lower their voices for "Taiwan independence."But their denial of the "1992 Consensus" and the stance of "one country on each side" could not abate the people's doubts and worries and finally led to their failure in the elections.Judged from the election, peaceful development of cross-Strait relations have developed from a concept to reality, benefitting people from different backgrounds and recognized by the public.

来源：资阳报