IBT Staff Reporter

Booming smartphone demand and cost cuts kept cellphone venture Sony Ericsson in the black in the first quarter as it battled supply disruptions from Japan's earthquake and tsunami.

China appears to have staged a second test-flight of a new stealth fighter jet, a state-owned newspaper said on Tuesday, which if true could be another step toward narrowing the military gap with the United States.

U.S. stocks were poised for a higher open on Tuesday after Goldman Sachs and Johnson & Johnson reported solid earnings.

Barcelona's World Cup winning midfielder Andres Iniesta could be banned for the Champions League first-leg against Real Madrid if he is found guilty of deliberately getting a yellow card in the quarterfinal first leg against Shakhtar Donetsk.

Goldman Sachs Group Inc posted a 72 percent decline in first-quarter profit as it made less money from trading bonds for clients.

Taiwan's Acer Inc named insider Jim Wong as its new corporate president after the abrupt departure of its previous chief executive last month, giving him special responsibility for developing mobile devices to power future growth.

Research In Motion's PlayBook, the long-awaited response to Apple's iPad, went on sale in the United States and Canada on Tuesday in a launch RIM desperately hopes will win the hearts and minds of consumers.

U.S. stock index futures were flat on Tuesday as investors digested the latest round of corporate profits.

SAN FRANCISCO/SEOUL - Apple Inc sued Samsung Electronics claiming the South Korean firm's Galaxy line of mobile phones and tablets slavishly copies the iPhone and iPad, according to court papers, a move analysts say is aimed at keeping its close rivals at bay.

Brent crude oil fell on Tuesday, slipping below $120 a barrel for the first time in two weeks, pressured by concern about the economic outlook and that high prices could erode demand.

The global tablet computer market, born last year with Apple's iPad, will grow to a $49-billion business by 2015, research firm Strategy Analytics said.

Some of the United States' biggest creditors moved to shore up confidence in its sovereign debt Tuesday after Standard & Poor's threatened to cut its credit rating on the world's top economy, touching a nerve among big holders of Treasuries.

Researchers assert that there is an increasing need for physicians to create a healthy distance between their work and home online identities with ubiquitous social media sites like Facebook and Twitter blurring private and professional lines.

Samsung Electronics Co is selling its hard-disk-drive business to Seagate Technology for $1.4 billion in cash and stock as it seeks to exit from the cut-rate industry and focus on its bread-and-butter memory-chip business.

For the first time in 27 years, clinical diagnostic criteria for Alzheimer's disease dementia have been revised, and research guidelines for earlier stages of the disease have been characterized to reflect a deeper understanding of the disorder. The National Institute on Aging/Alzheimer's Association Diagnostic Guidelines for Alzheimer's Disease outline some new approaches

Apple has raised a legal hatchet against its long-term supplier Samsung Electronics Co. charging it of replicating its iPad, iPhone and iPod designs in Galaxy series of Android devices.

Japan's Honda Motor Co plans to start producing electric cars in China as early as next year, the boldest step so far by a global automaker to tap as yet unproven demand for green cars in the world's largest auto market.

Toshiba Corp said on Tuesday it likely fell short of its operating profit estimate for the past business year by 4 percent after last month's massive earthquake and tsunami affected operations at some of its plants.

Goldman Sachs Group Inc is expected to report sharply lower quarterly earnings due to weak trading results and a charge for buying back preferred stock from Warren Buffett's Berkshire Hathaway.

Wearing neon colors, dancing and flashing I vote signs for video cameras, students in Canada's capital on Monday joined a growing movement of youth vote mobs aimed at shaking up the May 2 national election.

Samsung Electronics Co said on Tuesday it had agreed to sell its hard-disk-drive business to Seagate Technology for $1.4 billion in cash and stock, as it plans to focus on its bread-and-butter memory-chip business.

Roche Holding AG's rheumatoid arthritis drug Actemra received approval from the U.S. Food and Drug Administration (FDA) to treat a rare type of arthritis in children.

Cambridge University has beaten Oxford to the top spot for the first time since 2007 in the reputed annual Complete University Guide (CUG) rankings for 2012.

Photos of the winning moments at the 2011 Boston Marathon.

Asian stocks slid on Tuesday, falling further from a three-year high hit last week as investors took profits on risks of a Greek debt restructuring in Europe and the long-term threat of a U.S. government debt downgrade.

Booming smartphone demand and cost cuts kept cellphone venture Sony Ericsson in the black in the first quarter, despite the drag of supply disruption from Japan's earthquake and tsunami.

Stock index futures pointed to a slightly lower open on Wall Street on Tuesday, with futures for the S&P 500 down 0.1 percent, Dow Jones futures down 0.1 percent and Nasdaq 100 futures down 0.1 percent at 0733 GMT.

NASA Saturday released some spectacular never-seen-before space images from its infrared explorer. Here are few more from the WISE gallery.

Booming smartphone demand kept cellphone venture Sony Ericsson in the black in the first quarter, despite supply disruption following Japan's earthquake and tsunami.