All subjects participated voluntary.
Participants had the opportunity to participate in voluntary focus group sessions at three points throughout the study to discuss their perceptions of the technologies.
It will be stressed to participants that their decision to participate is voluntary and they can withdraw from the study at any time.
Thus if an additional 100 million or so people participate in voluntary activities, as the president has requested, the management costs would increase by around $30 billion.
Today, there is a UN Convention Against Corruption, the OECD Bribery Convention, and businesses may also participate in voluntary initiatives, such as the UN Global Compact and the Extractive Industries Transparency Initiative.
In a statement put out by his office in Austin, Mr. Bush said: "I support the constitutionally guaranteed right of all students to express their faith freely and participate in voluntary, student-led prayer".
In "Warming Up" (editorial, Jan . 25, you say that "a Washington Post survey found that only a tiny number of American companies" have agreed to participate in voluntary programs to curb greenhouse gas emissions.
Guidance given to Jobcentre staff on mandatory work and obtained through freedom of information requests says advisers may, at their discretion, use dropping out or refusing to participate in voluntary schemes as grounds for MWA.
□ I used to participate in voluntary activities for disaster awareness campaigns.
Students were asked to participate in voluntary screening of health behaviors upon arrival at SHS.
