A boom in apps has fed longstanding tensions between Twitter and the developers over whether they are partners or competitors.

App Makers and Twitter Feel Strains

The willingness of the News Corporation to spend millions in settlement costs to make problems go away provides a useful window into its larger culture.

Troubles That Money Can’t Dispel

High-frequency trading firms, for years accused of hurting ordinary investors, are turning away from their normal secrecy in an attempt to buff their tarnished image.

Fast Traders, in Spotlight, Battle Rules

With grocery shoppers more price conscious, stores are offering larger quantities of items to entice them to buy more.

At Stores, Making 5 for $5 a Bigger Draw Than 1 for $1

Leaders of the state’s largest public unions are trying to convince members that unpaid furloughs, benefit cuts and salary freezes are better than widespread layoffs.

New York Unions Press Members to Accept Deal

Health care is making enormous strides in Sierra Leone, the latest country in sub-Saharan Africa to waive hospital fees, particularly for children and pregnant women.

In Sierra Leone, New Hope for Children and Pregnant Women

Headed for disaster after returning from Iraq, Staff Sgt. Brad Eifert was spared with the help of a novel court program and an unlikely group of people.

Coming Together to Fight for a Troubled Veteran

A reinvigorated Labour Party is posing a fresh challenge to the young government of Prime Minister David Cameron of Britain.

Opponents Seize on Cameron’s Ties to Suspects

Diana Nyad, 61, aims to set a record by swimming across the shark-infested Straits of Florida in 60 hours.

Ready to Swim 103 Miles With the Sharks

The robust German economy is deploying money and management time outside the euro area.

Europe’s Economic Powerhouse Drifts East

A small group of executives at News Corporation pursued strategies for years that had the effect of obscuring the extent of wrongdoing in Britain’s best-selling tabloid.

Murdoch Aides Long Tried to Blunt Scandal Over Hacking

There are two dozen bills in Congress to dismantle parts of the law, and Senate Republicans refuse to consider nominations for posts at several regulatory agencies.

Dodd-Frank Under Fire a Year Later

Beijing has too much invested in American debt to do much more but continue to buy and grumble.

China’s Treasury Holdings Make U.S. Woes Its Own

There have been few successes in the brave new world of cancer research: the quest for genetic signatures.

Add Patience to a Leap of Faith to Discover Cancer Signatures

“Awkward,” a new comedy about suburban high school life, beginning on Tuesday on MTV, is both homage and rebuke to the teen genre.

Teenager’s High-Five Is Plastered in Place

The Pitchfork Music Festival in Chicago featured 45 bands and evidence of a flute infestation.

Back to the ’90s, Tootling a Flute

New York City Opera’s unions have charged that the company’s move from Lincoln Center violates the terms of a gift that makes up the bulk of its dwindling endowment.

Unions Say City Opera Invalidates Endowment

Teen Nick will start re-broadcasting some 1990s hits like “Doug,” in response to a groundswell of nostalgia on Facebook from fans who grew up with the shows.

The Good Ol’ Days of 20 Years Ago

Efforts to regulate playground equipment to prevent injuries may stunt emotional development, a new study suggests.

Can a Playground Be Too Safe?

The chief executive’s troubles and triumphs have some people wondering how long he will last and whether the bank should rethink its top job.

Blankfein’s Tenure at Goldman Sachs

Economic reports, corporate earnings and hearings this week in Europe.

Looking Ahead to Economic Reports This Week

The following tax-exempt fixed-income issues are scheduled for pricing this week.

Treasury Auctions Set for This Week

Corrections appearing in print on July 18, 2011.

Corrections: July 18

Fashion has always played a role in Beyoncé's artistic persona. But the difference for her latest album cover is in her choice of designers: Instead of major names, she went for up-and-coming creators.

For Her New Look, Beyoncé Goes Under the Radar

“The Exultant Ark” is a serious examination of the subject of animal pleasure, with surprising, funny, touching, sad, heartwarming pictures by photographers from all over the world.

July 18, 2011

Headlines from July 18, 2011

App Makers and Twitter Feel Strains

Troubles That Money Can’t Dispel

Fast Traders, in Spotlight, Battle Rules

At Stores, Making 5 for $5 a Bigger Draw Than 1 for $1

New York Unions Press Members to Accept Deal

Billboard 200

4

21

Finally Famous

When The Sun Goes Down

The Light Of The Sun

Historical Context for July 18, 2011