Such systems, however, can be difficult to isolate and to access via microscopy.
Implementing a tooling database around computer hardware/software in an existing facility, however, can be difficult.
Insider trading, however, can be difficult to prove, said Leslie R. Caldwell, the co-chief of the white-collar crime division at the law firm Morgan, Lewis & Bockius.
Financing, however, can be difficult to obtain, he said, and is typically offered at terms that are far less attractive than those in the United States.
Persuading large companies to go with a relative newcomer, however, can be difficult, even one the size of H.P. To accelerate H.P.'s shift into software, Mr. Apotheker raised the possibility of acquisitions.
Hitting these milestones, however, can be difficult — especially if you're unsure how to navigate the steps you need to take to get there.
However, it can be difficult to control the amount and localization of drug within microneedles.
However, these can be difficult to estimate for rare species and small populations.
However, it can be difficult to judge whether you should take the plunge or proceed with caution.
However, soils can be difficult to understand because they are complex and heterogeneous mixtures of many different components.
However, it can be difficult to predict all the effects (both good and bad) of a new technological advancement.
