Sentence examples for one main problem is from inspiring English sources

One main problem is that they don't know how to navigate these complicated public assistance systems in order to get government-sponsored health insurance".

One main problem is that the electrode package, also called the stack, has very low energy density.

In optimization, one main problem is to find zeros of maximally monotone operators these zeros may correspond to critical points or solutions to optimization problems.

In modern control theory where the quantizer is always considered as an information encoder and decoder, one main problem is how much information has to be transmitted in order to make the system achieve a certain objective for the closed-loop system.

One main problem is related to the lack of a 'holistic' view of the disease: the focus of OA research should be shifted from an approach solely considering the articular cartilage to a system biology approach, based on the study of the different components of the joint and of their interactions, in order to better understand mechanisms of whole joint failure in OA.

No one knows.The main problem is that egg-based manufacturing cannot mount a rapid response.

The third one is that the main problem is not about the debt level, but turning the Greek economy into a viable and sustainable economy able to function without constant blood transfusion.

The main problem is one of confounding factors.

For example, one respondent commented '[The] main problem is in postgraduate education - insufficient time allocated, no formal recognition, pressure of service on us and trainees'.

It can be seen that one of the main problems is that one may have to deal with quite different support sets of the distribution for different parameter values.

"One of the main problems is the burden is on the person who has been victimized," Ms. Gross said.