China signed a long-awaited, 30-year deal Wednesday to buy Russian natural gas worth $400 billion in a financial and diplomatic boost to diplomatically isolated President Vladimir Putin.

Negotiations on the price for the gas had continued into the final hours of a two-day visit by Putin to China, during which the two sides had said they hoped to sign a deal.

Computer maker Lenovo's annual profit rose 29 percent to a record high as smartphone sales surged in China and other markets.

Lenovo said Wednesday that smartphone shipments during the year jumped by nearly three-quarters to 50 million on strong demand in China, Southeast Asia and Eastern Europe, almost matching the 55 million PCs sold in the same period.

So, a lady walks into a bar...Wait, scratch that. A lady takes out her phone. With a left swipe of her finger she dismisses Alex, 25 and Robert, 48. She swipes right when a photo of James, 24, pops up. It's a match. James had swiped right too. They chat, and make plans to meet. They're only three miles apart, after all.

Welcome to the new world of dating. As the near-constant use of smartphones proliferates and as people grow more comfortable with disclosing their location, a new class of mobile dating applications is emerging that spans a range as broad as human desire itself. Millennials, busy with school, jobs and social lives, say the apps save time and let users filter out the undesirables, based on a few photos, words and Facebook connections.

French medical authorities have ordered a prestigious laboratory to suspend its activities after it lost more than 2,000 test tubes containing the SARS respiratory virus.

The Pasteur Institute reported the tubes missing last month from one of its labs, but insisted in a statement that the tubes do not pose any infection risk. The institute asked the ANSM medical safety agency to carry out inspections at the lab.

Prince Charles says the need for change to ensure the well-being of the planet has come into sharper focus for him since he became a grandfather last year.

The Prince of Wales listed a number of challenges facing the world from the widening gap between rich and poor to inequality for women and young girls to climate change after he was honored Tuesday as part a four-day trip with his wife, Camilla, to Canada.

"Resistant" (St. Martin's Press), by Michael Palmer

The final medical thriller by Michael Palmer is about homegrown bioterrorism in the United States. Of all the novels he wrote before his death in 2013, this one has the most ambitious plot and a fascinating array of characters.

LeBron James scored six straight points to spark a decisive 12-2 run as the Miami Heat beat the Indiana Pacers 87-83 on Tuesday to leave the Eastern Conference finals level at one game each.

James had 12 of his 22 points in the fourth quarter. Dwyane Wade had 23 points, 13 in the first half when the Heat desperately needed them to stay close, and 10 more in the fourth quarter when they had to rally.

The Museum of London is turning its magnifying glass on the most famous Londoner who never lived — Sherlock Holmes.

The museum on Tuesday announced an exhibition devoted to Arthur Conan Doyle's Victorian detective, featuring everything from hand-written manuscripts to the coat worn by Benedict Cumberbatch in the BBC series "Sherlock."

Brazilians have high hopes for the World Cup giving their country a big boost from its month-long run that begins June 12.

That includes football fan Jarbas Meneghini, a 46-year-old mechanic who has carved out a side business of making replicas of the trophy that goes to the winner of international football's biggest tournament.

The Brazilian federation of professional athletes is demanding FIFA change the start times of more than a third of World Cup matches because of the heat and humidity in Brazil.

The federation said Tuesday it filed a lawsuit asking FIFA to change kickoff times of all 24 matches that are scheduled for 1 p.m. local time (1600 GMT). It wants all matches starting no earlier than 4 p.m (1900 GMT) to avoid subjecting players to the "risks" of playing in "intense heat."