"It's more difficult to market.
"It's more difficult to make decisions".
The power necessary to transmit a laser beam for carrying voices many miles is extremely small, and a laser beam is more difficult to detect than radio signals.
Poor neutralization of the cell-free virions that transmit infection between hosts is more difficult to understand.
Here that is more difficult to achieve.
K-mixing is more difficult to analyse.
As difficult as it is to define qi, it is even more difficult to transmit it through a book.
But it is more difficult.
By delaying seeking care, these people may develop more serious symptoms, meaning they will be more difficult to treat; and as they remain infectious for longer, they are more likely to transmit the disease to others.
Although it has been well established that growth factors can modulate ER transcriptional activity, the observation that activated ER can transmit signals that modulate these signal transduction pathways has been more difficult to dissect.
