Comprehensive: University freedom reports worldwide

In Iran, another scientist has died in a bomb attack that strongly resembles earlier killings of participating in the country's controversial nuclear program. In Sudan, peaceful student protests across the country were violently repressed by the security forces. Academics and students from Tel Aviv University in Israel have condemned the security services of the institution to act as a "secret police on campus" to put pressure on teachers to help them spy on students. And in Sri Lanka, thousands of students protesting a number of complaints have been evicted from their roster following a court order.

IRAN: Another nuclear scientist killed in bomb attack

Mustafa Hamada Rosh an, a university professor and nuclear scientist, was killed in a bomb blast in Tehran, Al-Jazeera reported on 11 January.

Rosh an, a chemistry expert who graduated from the prestigious Sharif University of Technology in Tehran, was in charge of a department at the uranium enrichment plant at Nathans.

He was assassinated on January 11 by a magnetic bomb placed under his car by two men on a motorcycle. Two men present in the car were injured.

According to the website of the University Sharif Rosh an was "working on a project to make polymeric membrane for separating gas."

His assassination is the latest in a series of attacks on Iranian nuclear scientists.

On January 12, 2010 Mastoid Ali Mohammad, a professor of physics at Tehran University, was killed in a similar bomb attack. In November 2010, two scientists were targeted by bomb attacks, which killed one and injured another.

More recently, in July 2011, Dario’s Rezaeinejad student was killed by gunmen on motorcycle. Conflicting reports later discussed his alleged involvement in Iran's nuclear program.

The Iranian authorities have accused Israel of responsibility for the assassination of Rosh an, supposedly in an attempt to destabilize the country before presidential elections in March and derail its nuclear program.

But the vice president of Iran, Mohammad Reza Radii, told state television that the attack "will not stop Iran's nuclear program."

Are intensifying diplomatic tensions between the US, Israel and Iran over Iran's nuclear program. Despite claims that the program has been developed only for civilian and peaceful purposes, the US and Israel accuse Iran of trying to develop nuclear weapons technology.