Sentence examples for persistent puzzle from inspiring English sources

And does anything explain the persistent puzzle of who the real John Kerry is? Arguably, yes.

Can anything be learned from them to explain the persistent puzzle?

Stephen McDaniel, a professor of sports marketing and media at the University of Maryland, mentioned the troubled economy, the money "hemorrhaging" from sponsors, the exits of Annika Sorenstam and Ochoa in the last 36 months, and a frequent topic from his classroom: the persistent puzzle of establishing women's sports in the United States.

Understanding the function of ABCA1 in the efflux of cholesterol to HDL is also a persistent puzzle.

Secondly, the standard view of identity is troubled by many persistent puzzles and problems, some of recent and some of ancient origin.

Again, this is fascinating, and teachable but not explicity taught by Rosetta Stone.Perhaps the most persistent little puzzle in Rosetta Stone Mandarin is the presence of indispensable yet inscrutable little words all over the place.

Coral reef ecologists have laid a persistent and troubling puzzle to rest.

We feel that this observation is in fact more important than a mere resolution of the persistent but superficial puzzle and it certainly increases the significance of RNA aptamer data in the context of the problem of genetic code origin.

We went to the pyramids later, and stood in a line to enter the place where thieves had originally found the passageway to Khufu's crypt, a 2.3 million-block puzzle hacked into by persistent predators.

For years, seismologists in Italy have puzzled over odd and persistent seismic signals, seemingly caused by subterranean magma movements but far from active volcanoes.

"We have a puzzle here of long-term, persistent bad ideas and slowness of learning that we should all be thinking about, if we're modest, for our current policies," he said.