Sentence examples for so far challenging from inspiring English sources

The Obama administration says the signing statements the president has signed so far, challenging portions of five bills, have been based on mainstream interpretations of the Constitution and echo reservations routinely expressed by presidents of both parties.

Development of selective D3R ligands has been so far challenging, due to the high sequence identity and homology shared by D2R and D3R.

Mr. Feinberg has so far challenged a very small percentage of the fees and expenses in the case.

Radicalism has lurched to the right, and populist nationalism, though it has had little creative influence so far, challenges sophisticated art's presumption to the crown of American culture.

PGA Tour officials spent the better part of two weeks honing green speeds and rough height, setting up conditions that have so far challenged the field while allowing for occasional birdies.

Furthermore, possibly due to SV-L1CAM being seemingly tumour-associated, nobody had so far challenged the hypothesis that SV-L1CAM is also functionally the most important L1CAM variant for tumour progression.

Though different approaches have been proposed to deal with this problem so far, challenges still exist when they are applied to the bearings operating under harsh working conditions.

But he also appeared to warn opposition politicians that they could go only so far in challenging the government.

A system with large analyte transmission in the presence of gas has so far proven challenging.

Gene therapy may be a promising and powerful strategy for cancer treatment, but efficient targeted gene delivery in vivo has so far remained challenging.

However, reprogramming of fibroblasts to more immature hematopoietic progenitors has so far remained challenging.