It's worth noting that the temperature rise observed to date isn't spread evenly around the planet.
The largest Arctic ozone loss observed to date occurred in the recent cold winter of 2010/11 (ref. 9).
All systems observed to date appear to obey Maxwell-Boltzmann statistics provided that quantum-mechanical effects are not important.
These lights, three airplanes in formation, flying swiftly and purposefully, formed a pattern as we watched them as fitting a "V" as we have observed to date.
Dual RNAs (CRISPR RNA [crRNA] and tracrRNA) are required for Cas9's targeting activities observed to date.
This is, after all, is what women tell us they want41 and what we have observed to date in the WISDOM trial (described below).
The rather steady sea-level rise observed to date, just starting to accelerate, has already proven disruptive in many U.S. coastal areas.
The officials described Russian actions observed to date as significant but not as multifaceted as those that intelligence agencies saw during the 2016 campaign.
On March 19 , 2008 NASA's Swift spacecraft alerted astronomers to the brightest gamma-ray burst observed to date.
Furthermore, the initial implementation appears to have been successful as measured by high coverage, although public health impact has not been observed to date.
In this paper, we examine the rationale for school choice, obstacles to fulf lling its theoretical promise, and results observed to date.
