Many things can cause a bleb to rupture, such as changes in air pressure or a very sudden deep breath. Often, people who experience a primary spontaneous pneumothorax have no prior sign of illness; the blebs themselves typically do not cause any symptoms and are visible only on medical imaging.
SEATO came to an end in 1977 after just 22 years of existence. Lesson Summary. After World War II, the United States and other countries were concerned about the spread of communism around the world. On Feb. 19, 1955, the Southeast Asia Treaty Organization (SEATO) was created to help combat this spread. Of the eight member countries, only two (Thailand and the Philippines) were actually located in Southeast Asia.
During the meeting in 1994 in Bogor, Indonesia, APEC leaders adopted the Bogor Goals that aim for free and open trade and investment in the Asia-Pacific by 2010 for industrialised economies and by 2020 for developing economies.PEC has long been at the forefront of reform efforts in the area of business facilitation. Between 2002 and 2006 the costs of business transactions across the region was reduced by 6%, thanks to the APEC Trade Facilitation Action Plan (TFAPI).