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LOS ANGELES, April 3 (Xinhua) -- People with lower levels of vitamin D are more likely to have stiffer arteries and an inability of blood vessels to relax, U.S. researchers have found.This finding also applies to people who are in general good health, according to researchers from the Emory University School of Medicine.The researchers presented their findings on Sunday at the annual American College of Cardiology meeting in New Orleans.Impaired vascular health in correlation with lower vitamin D levels contributes to high blood pressure and the risk of cardiovascular disease, the researchers say.The study involved 554 participants, with the average age of 47 and generally healthy.The average level of 25-hydroxyvitamin D (a stable form of the vitamin reflecting diet as well as production in the skin) in participants' blood was 31.8 nanograms per milliliter. In this group, 14 percent had 25-hydroxyvitamin D levels considered deficient, or less than 20 nanograms per milliliter, and 33 percent had levels considered insufficient, less than 30 nanograms per milliliter.The researchers monitored the ability of participants' blood vessels to relax by inflating and then removing a blood pressure cuff on their arms. To allow blood to flow back into the arm, blood vessels must relax and enlarge -- a change that can be measured by ultrasound. The researchers also made other measurements of smaller blood vessels and examined the resistance to blood flow imposed by the arteries.

BEIJING, Jan. 20 (Xinhua) -- China's Ministry of Land and Resources announced Thursday illegal buildings totaling 14.31 million square meters in floor space were demolished in an effort to crackdown on illegal use of land by local governments and enterprises.In the crackdown, the ministry also took control of buildings totaling 34.15 million square meters in floor space, and retrieved 43,000 mu of land, 37 percent of which is farm land, said Li Jianqin, an official from the ministry who is charge of enforcing laws and regulations on land use.Li said violations of land-use laws and regulations were widespread, especially those by local governments.According to him, a total of 2,582 people involved in such violations were handed over to judicial and disciplinary authorities in 2010, with 239 people prosecuted for criminal offenses.

BEIJING, Feb. 23 (Xinhua) -- A senior official of the ruling Forces pour la Defense de la Democratie (FDD) of Burundi said Tuesday the FDD hopes to strengthen cooperation with the Communist Party of China (CPC) and to further enhance the "brotherly friendship" with the CPC.Mohamed Rukara, vice president of the Council of Elders, the top decision-making body of the FDD, said in an interview with Xinhua that there are a lot of ruling experiences of CPC that the FDD can learn from.He said the CPC has gained great achievements in China's reform and opening up, realizing sustainable development, developing science and technology and striking corruption.He said Burundi has set "sustainable development" as the slogan for the 2010-2015 period, and he believed that his country can learn from China's successful experiences of reform and opening up and realize the goal of shaking off poverty by 2020-2025.Rukara, who is also a ombudsman, said corruption has been a big challenge facing his country, and he believed the FDD can learn from the CPC in this regard, as the latter has been combating corruption very hard and effectively.Appreciating China's aid and contribution to the development of Burundi, Rukara said the two parties and the two countries have had very good relations based on mutual respect.He welcomed more Chinese enterprises to invest in Burundi to support its development, and "the door will always be open to our brother."At the invitation of the CPC, Rukara is heading an FDD delegation for a visit to China starting from Saturday.

JERUSALEM, April 12 (Xinhua) -- Israeli-Canadian archaeologist Simcha Jacobovici may have stumbled upon a major archaeological find if his claim of unearthing the nails used to hold Jesus on the cross during his crucifixion are to be believed.Jacobovici maintains that small metal remains dug out of the soil in a cave in a Jerusalem neighborhood are in fact the nails that held Jesus on the cross, the Ha'aretz daily reported Tuesday.The artifacts were found in a cave in the Armon Hanatziv ridge, about 6 km south of the Old City, during the course of a construction work in 1990. The hilly area now contains apartment buildings.During the excavation of the cave, a stone vessel with the name Caiaphas, the name of the High Priest considered responsible for turning Jesus over to the Romans, and two rusty nails, which Jacobovici believes to be the relics, was unearthed.However, officials from the Israeli Antiquities Authority told Xinhua although they regard Jacobovici as a great archaeologist and documentary filmmaker, they do not believe the cave really belongs to the High Priest of the Second Temple period (between 536 BC and 70 AD)."The reason is that during that period of time there were a lot of people with the name Caiaphas," a statement from the Antiquities Authority said, "And for example, it is inconceivable that every gravestone bearing the name Moshe Dayan, which is very common in these parts, should be ascribed to the same personality who played so prominent a role in our recent history."Dayan was an Israeli army general who led his troops to victory in the 1967 war.The authority considers Jacobovici's contention as "fantasy" that should not be considered conclusive, since there is no agreed- upon evidence backing it up.Jacobovici is standing his ground, however, and contends that during the Second Temple Period the name Caiaphas was uncommon, and therefore the tomb must belong to the infamous priest.Jacobovici, a well-known documentary filmmaker, has produced films about the Israeli-Palestinian conflict and human trafficking that earned him two Emmy Awards.He also worked alongside film director James Cameron on the movie Jesus' Lost Tomb.He expects to soon release a movie about the latest finds, entitled Nails on the Cross.

LOS ANGELES, March 7 (Xinhua) -- U.S. food producer Unilever said on Monday it is recalling two varieties of its Skippy peanut butter because some jars may be contaminated with salmonella.The recall affects jars distributed to retailers in 16 states -- Arkansas, Connecticut, Delaware, Illinois, Iowa, Maine, Minnesota, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Dakota, Pennsylvania, Virginia and Wisconsin, the company said.But the company said no illnesses have been linked to the contaminated Skippy peanut butter.The 16.3-ounce jars are marked with UPC codes 048001006812 and 048001006782 and have Best-If-Used-By Dates of MAY1612LR1, MAY1712LR1, MAY1812LR1, MAY1912LR1, MAY2012LR1 and MAY2112LR1.Unilever advised consumers in a press release to throw away any jars of the recalled peanut butter and to contact the company for a replacement coupon.Salmonella is an organism which can cause serious and sometimes fatal infections in young children, frail or elderly people, and others with weakened immune systems. The most common symptoms are diarrhea, abdominal cramps and fever within eight hours to 72 hours of eating a contaminated product.About 40,000 cases of salmonella are reported each year in the United States, according to the Centers for Disease Control and Prevention.