Washington, July 10 (Xinhua/UNB) -- As many as two-thirds of suspects, or 67 percent exactly, displayed symptoms of mental illness or emotional disturbance when launching mass casualty attacks across the United States last year, according to a report released by the U.S. Secret Service on Tuesday.
In at least 93 percent of last year's attacks, authorities found that the suspects had a history of threats or other troubling communications beforehand, said the report, which covered 27 attacks in 2018 that left 91 people dead and 107 injured.
"Because these acts are usually planned over a period of time, and the attackers often elicit concern from the people around them, there exists an opportunity to stop these incidents before they occur," the report concluded.
The Secret Service identified 28 such attacks in 2017, according to a USA Today report.
Shijiazhuang, July 10 (Xinhua/UNB) -- A handwritten family tree dating back to the Ming Dynasty (1368-1644) was discovered in north China's Hebei Province, according to local authorities.
The thread-bound family tree, found in Shuangpengtou Village, Xingtai City, was completed in August 1637 and is well-preserved with clear and neat handwriting.
The manuscript recorded the pedigree of a family of Meng and the family's rules and rituals, and also described the politics, economy and culture around the city.
"The well-preserved family tree offers us valuable insight into the family rules and rituals, economy and culture in central and southern Hebei in the Ming Dynasty," said Lan Jianhui, an expert on culture and history in the city.
Jinan, July 10 (Xinhua/UNB) -- Geological workers in east China's Shandong Province have found four reserves of hot dry rock, which equal about 18.8 billion tonnes of standard coal, local authorities said Wednesday.
A geological team managed to dig into the rock in the cities of Rizhao and Weihai, according to the Shandong Bureau of Coal Geology.
Covering an area of 1,500 square km, the rocks can be used in fields such as power generation, heating and oil exploitation.
Hot dry rock is a kind of geothermal energy that contains no water or steam. It is usually found 3 km to 10 km below the earth's surface, with temperatures higher than 180 degrees Celcius.
The renewable and pollution-free resource, with rich reserves and stable output, is believed to have great potential to replace fossil fuels in the future, according to the bureau.
Cleveland, Jul 10 (AP/UNB) — The Cleveland Clinic says it has delivered the first baby in North America after a womb transplant from a dead donor.
Uterine transplants have enabled more than a dozen women to give birth, usually with wombs donated from a living donor such as a friend or relative. In December, doctors in Brazil reported the world's first birth using a deceased donor's womb.
These transplants were pioneered by a Swedish doctor who did the first successful one five years ago.
The Cleveland hospital said Tuesday that the girl was born in June. The clinic has done five uterus transplants so far and three have been successful, with two women waiting to attempt pregnancy with new wombs. In all, the clinic aims to enroll 10 women in its study.
Westland, Jul 10 (AP/UNB) — An annual clash between good, clean fun and down-and-dirty theatrics has once again left scores of mud-covered children smiling in a suburban Detroit park.
Children participated in the 32nd annual Wayne County Mud Day on Tuesday at Nankin Mills Park in Westland, a suburb west of Detroit. Participants frolicked, bathed and lounged in a large mud pit, then sloppily engaged in Mud Limbo and Wheelbarrow Races.
There also was majesty amid the muck and mud: Phoenix Crowder and Riley Tulgetske were crowned Mud Day King and Queen.
A local fire department rig sprayed water to rinse off the mud-caked revelers — to the chagrin of some mud enthusiasts.