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Washington, Sept 23 : An international team of scientists have demonstrated the dramatic effects of quantum mechanics on a simple magnet.

As part of their study, the team focussed on a square of spins, the tiny bar magnets associated with the electrons in the copper atoms in the organometallic material.

At the nano scale, magnetism arises from atoms behaving like little magnets called ‘spins’.

In ferromagnets – the kind that sticks to fridge doors – all of these atomic magnets point in the same direction.

Lahore, Sep 23 : If Article 63 of the Constitution did not apply to the President, even an "insane" or convicted person could become President, said former judge Tariq Mehmood on Geo TV’s "Great Debate on Presidential Election".

He said that if two provincial assemblies were dissolved before the election, the country’s political scenario would become "dangerous".

Islamabad, Sep 23 : The government has stepped up its efforts to "re-elect" President Pervez Musharraf unopposed, with the opposition parties still divided on the issue of resigning from the assemblies, and they have not yet agreed on a joint candidate for the presidential election.

The PPP and the JUI-Fazl have not yet agreed to their legislators resigning from the assemblies along with the All Parties Democratic Movement (APDM) lawmakers on September 29.

Gaya (Bihar), Sep 23 : At least three persons including a policeman were today killed in an attack by Naxalites in Bihar's Gaya District. The banned rebel group have called for a 24-hour shutdown to register their protest against the arrest of their top leader, Tushar Kant Bhattacharya, and his aide Brajmohan Ram.

According to official sources, the naxalites torched 13 trucks and two buses at places under Amas and Barachatti police stations.

Washington, Sept 23 : Climate change is accelerating the spread of dengue fever throughout the Americas and in tropical regions worldwide, a new study by a Harvard Medical School researcher has revealed.

The study said more rainfall in certain areas and warmer overall temperatures was providing optimal conditions for mosquitoes –which spread the virus that causes dengue – to breed and expand into new territories.

Patna, Sep 23 : The Bihar Government today issued a high alert across the state following a 24-hour shutdown called by CPI-Maoists to register their protest against the arrest of their top leader, Tushar Kant Bhattacharya, and his aide Brajmohan Ram.

Police stations situated in the Naxalite hit districts have been put on maximum alert and patrolling intensified at vital installations like railway stations and government buildings across the state, Home Secretary of Bihar, Afzal Amanullah said