济南前列腺影响性功能吗(济南男性尿道口流浓) (今日更新中)

SAN FRANCISCO, March 30 (Xinhua) -- History records showed it was not often that large earthquakes caused immediate large volcano eruptions, a geophysicist told Xinhua on Wednesday while talking about whether the recent massive quake in Japan could trigger volcano eruptions.Inevitably, the shaking and changes in the state of stress in the crust could cause some changes in some of active volcanoes closest to the March 11 quake zone in Japan, said Dr. Jian Lin, senior scientist and geophysicist at the Woods Hole Oceanographic Institution in the United States.However, only if a particular volcano was already in a stage of magmatic inflation, a situation close to eruption, would the shaking make a major difference, he noted.Lin is currently visiting the U.S. Geological Survey's earthquake research center in Menlo Park, California to study the March 11 Japan earthquake.Compared with the cases that earthquake triggered volcano eruptions in the past, Lin said, most of active volcanoes in Japan are located somewhat farther away from the March 11 earthquake rupture zones. "The farther away, the less direct effect," he noted.Therefore, "the most important thing is to closely monitor all the active volcanoes in Japan," he said.There are only two well-documented cases of significant volcano eruptions that were apparently triggered by large earthquakes, he said.On Nov. 29, 1975, the Kilauea Volcano in the Hawaiian Islands had a small and short-lived eruption immediately after a magnitude- 7.2 quake hit the Big Island of Hawaii near the volcano, which was probably the best scientifically documented case so far of a volcano eruption triggered by a large earthquake.Records showed that the Kilauea Volvano was already in a stage of inflation before the quake. Meanwhile, the quake was right next to the volcano, which triggered the following eruption.Another case is 1960 Chile earthquake-volcano pair, in which a magnitude-9.5 earthquake, the largest ever recorded by instruments, could have triggered the Puyehue-Cordon Caulle Volcanic Complex ( PCCVC) into a violent eruption within 38 hours. The CCVC had been inactive for 25 years before the quake.Lin pointed out that like the Kilauea case, the earthquake rupture zone in the Chilean quake was again quite close to the volcanic group. However, little scientific monitoring data had been got for the PCCVC before its eruption as it is in a remote area in Chile.In recent years, scientists have observed that large earthquakes from long distance could trigger swarms of small earthquakes in active hydrothermal systems of volcanic regions, he said, noting that "these small earthquake swarms like these are not the same as volcano eruption."Lin added that the relationship between large volcano eruption and large earthquakes is still a poorly studied subject since scientific record is very short and many of large eruptions in the geological history were poorly documented."Therefore, we still know quite little about this subject," he said.

WASHINGTON, March 25 (Xinhua) -- NASA's Stardust spacecraft depleted fuel and ceased operation on Thursday after a 12-year run, the U.S. space agency said Friday."This is the end of the spacecraft's operations, but really just the beginnings of what this spacecraft's accomplishments will give to planetary science," said Lindley Johnson, Stardust-NExT and Discovery program executive at NASA headquarters in Washington."The treasure-trove of science data and engineering information collected and returned by Stardust is invaluable for planning future deep space planetary missions."Artist's concept of Stardust spacecraft nearing EarthLaunched on Feb. 7, 1999, Stardust flew past the asteroid named Annefrank and traveled halfway to Jupiter to collect the particle samples from the comet Wild 2. The spacecraft returned to Earth's vicinity to drop off a sample return capsule eagerly awaited by comet scientists.NASA re-tasked the spacecraft as Stardust-NExT to perform a bonus mission and fly past comet Tempel 1, which was struck by the Deep Impact mission in 2005. The mission collected images and other scientific data to compare with images of that comet collected by the Deep Impact.The Stardust-NExT met all mission goals, and the spacecraft was extremely successful during both missions. From launch until final rocket engine burn, it travelled approximately 3.54 billion miles.After the mileage logged in space, the Stardust team knew the end was near for the spacecraft. With its fuel tank empty and final radio transmission concluded, the most traveled comet hunter will move from NASA's active mission roster to retired."This kind of feels like the end of one of those old western movies where you watch the hero ride his horse toward the distant setting sun -- and then the credits begin to roll," said Stardust-NExT project manager Tim Larson from NASA's Jet Propulsion Laboratory in Pasadena, California. "Only there's no setting sun in space."

PARIS, May 17 (Xinhua) -- Arianespace has approved the preparation review of the third Ariane 5 flight, which is expected to lift two communication satellites on Friday from the spaceport in French Guiana, the European launching center said on Tuesday.The prior readiness review approved that "Ariane 5 is now cleared for its May 19 rollout from the Final Assembly Building to the ELA-3 launch zone, where it will be readied for liftoff on Friday at 5:38 p.m. local time in French Guiana," the space center said in a statement.This dual payload flight will orbit GSAT-8 and ST-2 satellites, with a combined mass of 8,190 kilo grams.Built by Japan's Mitsubishi Electric Company, ST-2 will be utilized by the ST-2 Satellite Ventures joint company of Singapore Telecommunications Ltd (SingTel) and Taiwan's Chunghwa Telecom Company Ltd. for Ku- and C-band relay services across the Middle East, Central Asia, India and Southeast Asia.The lighter passenger GSAT-8, built by the Indian Space Research Organization (ISRO), will serve to augment India's Ku- band relay capabilities and offer aircraft navigation assistance over Indian airspace and adjoining areas with its two-channel GAGAN system.The Arianespace started its 2011 busy year for heavy-lift Ariane 5 with the milestone launch of Europe's second Automated Transfer Vehicle (ATV) on February 16, and then a dual payload on April 22 that orbited Yahsat Y1A and Intelsat New Dawn satellites.

JERUSALEM, March 31 (Xinhua) -- Two researchers at the Hebrew University (HU) of Jerusalem have been honored with a prestigious award for their study of the connection between several inflammatory diseases, cancer and bacteria.Medical faculty members, Dr. Eli Pilarsky and Prof. Sigal Ben- Yehuda, won this year's Sir Zelman Cowen Universities Fund prize that recognizes significant achievement in the field of medicine.The prize committee noted the impressive contributions of Pilarsky and Ben-Yehuda in understanding complex diseases like cancer and antibiotic-resistant infections, and, in a first, decided to award the two scientists this year.Pilarsky told Xinhua that his research deals with the connection between chronic inflammatory diseases like hepatitis, and the development of cancer cells."The relevance of this discovery is that we were able to establish the link between the molecules secreted with such inflammations and the proliferation of cancer cells," Pilarsky explained, noting that "we discovered that the inflammation favors the cancer cells' growth, and now we are trying to find a way to manipulate these molecules to stop the cancer cells from appearing. ""The importance of these findings lies in the fact that 20 percent of the world's cancer cases are attributed to inflammation processes," Pilarsky pointed out.

LOS ANGELES, April 14 (Xinhua) -- Customer complaints of an "uncharacteristic odor" prompted Johnson & Johnson to recall about 57,000 bottles of the prescription anti-seizure drug, Johnson & Johnson announced on Thursday.The recall affects two lots of the Topamax 100 mg tablets made by the company's Ortho-McNeil Neurologics division, Johnson & Johnson said.The drug was shipped and distributed between Oct. 19, 2010 and Dec. 28, 2010 in the United States and Puerto Rico.There were four consumer complaints about an odor believed to be caused by trace amounts of the chemical TBA (2,4,6 tribromoanisole), which is applied to wooden pallets used to transport and store packaging materials, Johnson & Johnson said.The recall is not expected to lead to a product shortage at the market, Ortho-McNeil Neurologics said.Similar complaints of a moldy, musty odor have led to the recalls of millions of bottles of Tylenol, Motrin and Benadryl products earlier.Last month, the U.S. government said it was taking over three Tylenol plants operated by McNeil, and the Food and Drug Administration launched a criminal investigation into safety issues at the factories, CNN reported.

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