Washington, Apr 11 : Teaching basic concepts behind maths problems is more beneficial for students than the exact procedures to solve the problems, according to a new study by Vanderbilt University researchers

The results may offer teachers new insights on how best to shape maths instruction to have the greatest impact on student learning.

Washington, Apr 11 : A simple colour-changing oral strip can help detect gum disease in a patient more quickly and easily than traditional screening methods, according to researchers at Temple University.

Periodontal, or gum disease, can often result in not just tooth loss, but it has also been linked to heart disease, diabetes, blood infection, low birth-weight babies, cancer and most recently, obesity.

While screening is often costly, time-consuming and sometimes painful for the patient, the new method is much quicker and easier in detecting any problem.

Washington, Apr 11 : Sean `Diddy' Combs is urging his fans to become the face of a new iPhone application he''s developing with Apple.

The rap mogul has joined hands with the computer software giant to promote his upcoming album `Last Train To Paris'.

Thus, he has asked his followers to submit photos of themselves on a train, reports Contactmusic.

The photos will then be chosen to become part of the official mosaic of the download when it is released this summer.

Washington, April 11 : U. S. President Barack Obama and First Lady Michelle Obama had a St. Louis chef flown all the way to Washington, D. C., to make pizzas for them in the White House's kitchen.

Chris Sommers, who runs a pizza place in St. Louis called Pi, flew to the nation''s capital Thursday to make 20 pizzas for the Obama family and staff.

"It''s surreal, it''s a huge honour," People magazine quoted Sommers, 33, as saying.

Washington, April 11 : By sequencing the DNA of two tiny marine algae, a team of scientists has opened up a myriad of possibilities for new research in algal physiology, plant biology, and marine ecology.

The project was led by Alexandra Worden at the Monterey Bay Aquarium Research Institute (MBARI) and the Joint Genome Institute (JGI).

Paul Walker has confirmed the news that he will be back for a fourth Fast & Furi