This has been particularly challenging in remote and insecure areas.

And there were two types of laws that were particularly challenging.

Several participants, noting their heavy reliance on United Nations agencies, particularly country teams, described both successful and challenging experiences.

But this change will raise challenging social and political questions as well, particularly concerning privacy preferences and health care both already controversial issues.

At this sensitive political juncture, this is particularly relevant to the Iraqi security forces that are often required to operate in challenging and provocative circumstances.

The particularly challenging nature of this situation has prompted the international community to examine more closely how to manage complex displacement emergencies through a collaborative response.

This process is particularly challenging for the prosecution, which has several hundred thousands of pages of investigative material in addition to thousands of pages of court documents.

You know the uni is the most challenging, so number ten is challenging.

That was challenging.

The previous year had been particularly challenging for the Department, which had been called upon to provide security support to numerous field operations and to the largest gathering of world leaders in history.

This is challenging work to do.

It's not very challenging any more.

That was an extremely impressive and efficient record, particularly given the complexity of the trials, the challenging operating environment and the fact that the entire Court structure had been built from the ground up.

Vaccines protecting against Helicobacter pylori and hepC are in development (although the latter is proving particularly challenging). Even an Epstein Barr virus vaccine, which would protect against some kinds of lymphoma, is achieving promising results.

Skepticism, because you must always be challenging.

DM She's very tough it's most challenging.

It's this immensely exciting and challenging problem.

That is an assumption that needs challenging.

Establishing a frame of reference for measuring the performance of the RCF proved particularly challenging, as data was not being collected and monitored for the purpose of assessing outcomes and impact for the period under review.

In Japan, they say that sushi is challenging.

BC EDL is this immense, technically challenging problem.

However, the situation in Cité Soleil remains challenging.

The electoral environment in Haiti is particularly challenging given the multiple crises that the country has experienced over the past decades and the limited ability of the Provisional Electoral Council to tackle the many technical challenges at hand.

But deciphering the script is a very challenging task.

It's going to be very challenging to deal with.

The selection of indicators has proven to be challenging.

Women challenging these norms are punished by violent means.

We live in difficult and challenging economic times, of course.

They're challenging the very notion of Western models of development.

It's a very challenging task. But more to come later.

You can see the trapezoids are a little challenging there.

And we as Africans need to start challenging our leaders.

Everything we do, we believe in challenging the status quo.

We express our gratitude for Mr Smith's outstanding, challenging speech.

In this challenging environment, administrative infrastructures have continued to function.

These have indeed been very challenging times for our Organization.

Indeed, we live in both challenging as well as exciting times.

Determining an optimal level of accountability for results is also challenging.

Some individuals and entities have filed multiple lawsuits challenging their listing.

The motion challenging the expert report was therefore not taken up.

And this is a very challenging idea. It's a very challenging idea to mainstream media. It's a very challenging idea to anyone who has invested an enormous amount of time and expertise, and who has a lot of energy invested in the notion that he or she knows better than everyone else.

At the best of times, traveling between Indonesia's many islands is challenging.

Managing such a large and complex peacekeeping mission was a challenging task.

In his opening remarks before this Committee, on Monday, 3 October 2005, Mr. Nobuyasu Abe, the Under Secretary General for Disarmament Affairs, summed up the current situation correctly when he said, We meet at a particularly difficult and challenging moment for disarmament and non proliferation.

So, really even challenging the notion of what can be considered a story.