US President Barack Obama, his daughters Malia and Sasha, and wife Michelle are greeted by Brazilian President Dilma Rousseff as they arrived for a reception, in Brasilia March 19, 2011. Obama is on the first leg of a three-country tour of Latin America. [Photo/Agencies]

BRASILIA- Brazilian president Dilma Rousseff and her US counterpart Barack Obama have defined their countries as "global partners", in a joint statement released after their work meeting Saturday in Brasilia.

In the document, both expressed their satisfaction with the state of relations between the two countries, and committed to establishing "a just and inclusive world order, which promotes democracy, human rights and social justice."

They agreed that as international organizations "have had to change to be more responsive to the challenges of the 21st century, the United Nations Security Council also needs to reform, and expressed their support for a modest expansion of the Security Council that improves its effectiveness and efficiency, as well as its representation."

According to the statement, Obama "expressed appreciation for Brazil's aspiration to become a permanent member of the Security Council, and acknowledged its assumption of global responsibilities."

They welcomed the appointment of the G20 as the highest forum for coordination of economic policies and efforts to reform the governance of international financial institutions.

On the discussion on the volatility of agricultural commodities, "they recognized the need for greater transparency in commodity markets, and for improved regulation of financial mechanisms that affect pricing."

They stressed the mutual benefits of greater economic, financial and commercial cooperation, and recognized the potential of mutual investment, particularly in the areas of infrastructure, energy and technology.

Since Brazil will host the 2014 World Cup and the 2016 Olympic Games and Paralympic Games, they noted that bilateral cooperation will be streamlined, particularly in infrastructure, security and protection.

They reaffirmed their commitment "to bring the WTO Doha Round to a successful, ambitious, comprehensive and balanced conclusion. "

Obama said the US seek to make Brazil a "strategic energy partner" in oil, natural gas, biofuels and other renewable sources, and both governments agreed to begin a dialogue on urban sustainability.

They agreed to cooperate in promoting democracy, human rights and freedom for all peoples, including ensuring respect for human rights in the context of the democratic movements and transitions.

They decided to create a dialogue on education and research, to review existing cooperation programs, particularly to expand student exchanges in the areas of science, health, technology, engineering, computer science and mathematics.

They instructed the competent agencies of both countries to discuss the establishment of a bilateral working group for earth observation, environmental monitoring, measurement of precipitation, and mitigation and response to natural disasters, by satellite.

They reaffirmed the commitments of both countries to disarmament, nuclear non-proliferation and peaceful uses of nuclear energy, with a view to a world without nuclear weapons.

They decided to start discussions on the Brazilian participation in nuclear security cooperation, highlighting Brazil 's interest in joining the US to support the initiative Peaceful Uses of International Atomic Energy Agency(IAEA), to support use of nuclear energy in developing countries.

They expressed their determination to expand technical cooperation in third countries, particularly in Haiti, in other countries in Latin America and the Caribbean and Africa.

They reaffirmed the commitment of both countries with the work of the United Nations Mission for Stabilization in Haiti (MINUSTAH) , and emphasized the importance of holding the second round of elections in the Antillean country.

Rousseff accepted the invitation to visit to the United States in the second half of 2011.