Lack of a good vacuum and an adequate electric source, however, resulted in a short lifetime for the bulb and inefficient light.
But when a country suffers a lack of political authority, the vacuum at the top sucks in anybody who draws close.
Although conventional methods can produce various ZnO micro-/nanostructures, these different synthesis methods often greatly suffer from problems of high temperature, need for high vacuum, lack of control, and high cost.
The loss of the fenestrated membrane is thought to lead to the collapsed appearance of the eye in scanning electron micrographs due to the lack of structural strength under vacuum.
Lack of data on the use of vacuum extraction in low-resource settings has also been shown to hinder recommendations for the procedure [ 39].
Foster has identified a critical vacuum: a lack of training in management skills.
'There's a policy vacuum and lack of clear policy on osteoporosis in the NHS generally, not just with Nice,' he said.
Local and foreign officials cite a power vacuum and lack of central government control in many places, as well as poverty and the influence of drug traders and militant groups for the increase in illegal production.
Institutional crisis, a power vacuum, a lack of leadership or commitment, a training ground with rusting equipment, and the absence of a fitness coach or proper staff had done for them.
Because of stereotypes about the parties that filled the vacuum a lack of accurate information had created, many average voters have no clue about which party advocates which policy.
