The phrase "with proficiency" is grammatically correct and can be used in written English.
It means to do something with skill or expertise. Example: As a language teacher, I am able to communicate with my students with proficiency in both English and Spanish.
In vitro exposure of patient samples to etoposide, a DNA damaging agent, revealed three distinct "DNA damage response (DDR /apoptosis" profiles: 1) AML blasts with a defective DDR and failure to undergo apoptosis; 2) AML blasts with proficient DDR and failure to undergo apoptosis; 3) AML blasts with proficiency in both DDR and apoptosis pathways.
Three distinct responses exemplified by the 2D flow plots in Figure 4A were observed: (1) AML blasts with a defective DDR and failure to undergo apoptosis (2) AML blasts with proficient DDR and failure to undergo apoptosis (3) AML blasts with proficiency in both DDR and apoptosis (Figure 4A).
With proficiency comes progress.
I do it with proficiency".
The group wanted to look at the database to see how often doctors perform procedures like knee replacements or prostate surgery, because volume is often associated with proficiency.
In the time that some amputees take to learn to walk with proficiency, Rainey is both running and throwing, to the surprise of even his biggest advocates.
John Taflan, an associate director of the National Security Agency, said the agency's hiring last year included 100 language analysts with proficiency in more than 15 languages, compared with a historic low of 14 in 1999.
That a third of the nation's eighth graders can write with proficiency may not sound like much, but it is the best performance by eighth-grade students in any subject tested in the national assessment in the last three years.
Ms. Mazzoni said California might suggest a separate national measure that all 50 states would use to determine student progress, with proficiency set at a commonly agreed -- and more modest -- level.
The challenges of the public-relations trade have attracted a great many wily practitioners during the hundred or so years since its birth — men and women with proficiency in sales, spin, propaganda, language, and personal relationships.
