Current Affairs International - 6 October 2015

1. World Habitat Day was observed on 5th October across the world to raise awareness about the state of human settlements and the future of cities. As per United Nations, it is observed on first Monday of October every year. The theme for 2015 was -Public spaces for all-.

United Nations General Assembly (UNGA) through Resolution 40/202 had established World Habitat Day in 1985 and it was first celebrated in 1986 with the theme -Shelter is My Right-. The purpose of the day is to reflect on the state of our cities and towns and the basic human right to adequate shelter. It also aims to remind the world of its collective responsibility for the habitat of future generations.

2. Takaaki Kajita of Japan and Arthur McDonald of Canada have jointly won the Nobel Prize 2015 in Physics for the discovery of neutrino oscillations, as per announcement made by the Royal Swedish Academy of Sciences. The two researchers had made key contributions to experiments showing that neutrinos change identities.

As per the academy, -The discovery has changed our understanding of the innermost workings of matter and can prove crucial to our view of the universe". Kajita is director of the Institute for Cosmic Ray Research and Professor at the University of Tokyo. McDonald is a Professor Emeritus at Queen's University in Kingston, Canada.

3. Micro blogging site Twitter has appointed its co-founder and interim chief executive officer (CEO) Jack Dorsey as permanent CEO for second time. He succeeded Dick Costolo who had resigned in June this 2015 after serving as CEO for five years.

He had earlier served as Twitter-s president and CEO from May 2007 to October 2008. Post October 2008, he was also the Chairman of the board of members of Twitter. Twitter also has appointed Adam Bain as Chief Operating Officer (COO) of the company.

4. DuPont Chief Executive Officer Ellen Kullman has resigned and will step down this month. She will be replaced temporarily by board member Edward Breen, who oversaw the break-up of conglomerate Tyco International Plc. Kullman joined the company more than 27 years ago and has been its CEO since 2009.