Exact(6)
Unfortunately, achieving this goal requires expensive and time-consuming efforts in medical biotechnology.
Unfortunately, achieving the high resolution required with multiuser MIMO communication is challenging due to the large number of codebook entries required.
Unfortunately, achieving that dream may've just become a lot harder for male sex workers.
Unfortunately, achieving a personality-driven media brand of "Oprah" or "Martha" status is kind of like becoming an A-list actherethere are millions of extremely talented actors in Hollywood but we only "know" a few of them.
Unfortunately, achieving a reliable feedback control remains a challenge for cellular systems.
Unfortunately achieving optimal GPU performance is not such a straightforward affair as just writing simple kernels.
Similar(54)
On the other hand, even though we used over 250,000 samples, we couldn't unfortunately achieve good results when the sources are underwater acoustic signals, see Figure5. Figure 5 Blind estimation of time delays, τ 1 = 25 τ 2 = 56 and τ 3 = 75, the sources signals are three underwater acoustic signals (military sheep noises and whale songs).
Unfortunately, after achieving CMMI level 3, the organization interrupted the implementation of the high maturity practices.
Unfortunately, as achieving adequate hemostasis during partial splenectomy is still a great challenge, the use of the technique is currently limited.
The international community of medical professionals has been addressing this issue for decades, unfortunately without achieving an adequate solution to the problem [ 3].
Unfortunately, to achieve that goal, it has skimped on some standard accouterments that guests might miss.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com