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WASHINGTON, Nov. 9 (Xinhua) -- An international team of researchers funded by NASA and the National Science Foundation (NSF) will travel next month to one of Antarctica's most active, remote and harsh spots to determine how changes in the waters circulating under an active ice sheet are causing a glacier to accelerate and drain into the sea, the U.S. space agency announced Wednesday.The science expedition will be the most extensive ever deployed to Pine Island Glacier. It is the area of the ice-covered continent that concerns scientists most because of its potential to cause a rapid rise in sea level. Satellite measurements have shown this area is losing ice and surrounding glaciers are thinning, raising the possibility the ice could flow rapidly out to sea.The multidisciplinary group of 13 scientists, led by Robert Bindschadler, emeritus glaciologist of NASA's Goddard Space Flight Center, will depart from the McMurdo Station in Antarctica in mid- December and spend six weeks on the ice shelf. During their stay, they will use a combination of traditional tools and sophisticated new oceanographic instruments to measure the shape of the cavity underneath the ice shelf and determine how streams of warm ocean water enter it, move toward the very bottom of the glacier and melt its underbelly."The project aims to determine the underlying causes behind why Pine Island Glacier has begun to flow more rapidly and discharge more ice into the ocean," said Scott Borg, director of NSF's Division of Antarctic Sciences, the group that coordinates all U.S. research in Antarctica. "This could have a significant impact on global sea-level rise over the coming century."

WASHINGTON, Dec. 12 (Xinhua) -- British scientists have discovered a new way to target cancer through manipulating a master switch responsible for cancer cell growth. The findings, published Monday in the U.S. journal Cancer Cell, reveal how cancer cells grow faster by producing their own blood vessels.Cancer cells gain the nutrients they need by producing proteins that make blood vessels grow, helping deliver oxygen and sugars to the tumor. These proteins are vascular growth factors like VEGF -- the target for the anti-cancer drug Avastin. Making these proteins requires the slotting together of different parts of genes, a process called splicing.Scientists at the University of West England and the University of Bristol discovered that mutations in one specific cancer gene can control how splicing is balanced, allowing a master switch in the cell to be turned on. This master switch of splicing makes cancer cells grow faster, and blood vessels to grow more quickly, as they alter how VEGFs are put together.In experimental models, the researchers found that by using new drugs that block this master switch they prevented blood vessel growth and stopped the growth of cancers."The research clearly demonstrates that it may be possible to block tumor growth by targeting and manipulating alternative splicing in patients, adding to the increasingly wide armory of potential anti-cancer therapies," the authors said.

WASHINGTON, Dec. 12 (Xinhua) -- British scientists have discovered a new way to target cancer through manipulating a master switch responsible for cancer cell growth. The findings, published Monday in the U.S. journal Cancer Cell, reveal how cancer cells grow faster by producing their own blood vessels.Cancer cells gain the nutrients they need by producing proteins that make blood vessels grow, helping deliver oxygen and sugars to the tumor. These proteins are vascular growth factors like VEGF -- the target for the anti-cancer drug Avastin. Making these proteins requires the slotting together of different parts of genes, a process called splicing.Scientists at the University of West England and the University of Bristol discovered that mutations in one specific cancer gene can control how splicing is balanced, allowing a master switch in the cell to be turned on. This master switch of splicing makes cancer cells grow faster, and blood vessels to grow more quickly, as they alter how VEGFs are put together.In experimental models, the researchers found that by using new drugs that block this master switch they prevented blood vessel growth and stopped the growth of cancers."The research clearly demonstrates that it may be possible to block tumor growth by targeting and manipulating alternative splicing in patients, adding to the increasingly wide armory of potential anti-cancer therapies," the authors said.

TOKYO, Jan. 24 (Xinhua) -- Japanese Foreign Minister Koichiro Gemba said Tuesday that Japan will seek to take a less inward- looking stance when it comes to diplomacy in the Asia-Pacific region.Specifically he said that Japan will look to enhance diplomatic ties with China based on mutually beneficial goals."With China, this year marks the 40th anniversary of normalizing diplomatic ties. We will aim to deepen the mutually beneficial relationship based on common strategic interests," Gemba said Tuesday in his first foreign policy speech in parliament.He went on to say that Japan plans to proactively make " concrete efforts" to strengthen its ties with China and establish more "open and multilayered networks" in the best interests of both countries.

BEIJING, Nov. 28 (Xinhuanet) -- Many parts of the United States are planning to offer free HIV tests for people on Dec. 1 in honor of World AIDS Day, according to media report Monday.Officials in Washington will provide free HIV tests at area-based food stamp offices, Medicaid offices, and government assistance offices.U.S. WMCA Health Services is to offer free Rapid HIV testing to all from 8 a.m. to 4 p.m. on Dec. 1, 2011 at their office at 179 Lisbon Street, Lewiston, Maine. People getting an HIV test can get their results in 20 minutes from the confidential testing. Free chlamydia and gonorrhea testing will also be offered for all woman age 26 and under and all men.They can either call the clinic to make an appointment or walk to the office directly for free testing. They also have chances to get food, giveaways and gift cards if they get there early.More than 40 vendors are expected to take part in the second annual World AIDS Day hosted by the Lake County Health Department on Dec. 1. The free event will begin from noon and be over at 4 p.m. at Donnelly Park, 530 N. Donnelly St. in Mount Dora, Florida. World AIDS Day is a global campaign to end AIDS and help bring awareness of the disease worldwide.