Older houses also can also be renovated to meet passive-house standards, but such renovations are rare because of the extra-thick walls and high technological requirements that certified passive houses demand.

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In doing so, it will provide a clear indication that at least the legislative branch recognizes the United States' long-run technological requirements and that it is prepared to ensure they are met.

CENTERFORSECURITYPOLICY: Center For Security Policy

Reasons given are the increasing automation and higher technological requirements in almost any workplace, so that a certain, less educated percentage of the workforce simply is not able to find appropriate work any more.

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" What's more, while the research hasn't even begun yet, one of the professors involved sees it as nothing short of a milestone, saying that "the outcome of the research will define the scientific and technological requirements for the design of humanoid robots able to develop complex behavioural, thinking and communication skills through individual and social learning.

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Greater reliance on natural gas-fueled light duty vehicles is possible but will require more time due to greater infrastructure requirements and technological innovation.

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