But three trials of microbicides have now failed, and so have two herpes-suppression trials and one trial of diaphragms.
Part of the reason that breathing becomes hard for emphysemics is that their rib cages and diaphragms become enlarged and misshapen as their lungs expand.
The beauty of generating sound this way is that no bulky magnets or moving diaphragms are needed.In fact, the thermoacoustic effect has been employed in a similar way before.
One important question that the trials need to answer, therefore, is whether healthy people can take low doses of the drugs safely over the long term.A fourth female-controlled technology is to "re-purpose" cervical diaphragms from their normal use as contraceptives to act as blockers of infected semen, rather as condoms have found another use.
Several hours after a session which involved one-second pulses for five minutes followed by five minutes of rest, the rats began breathing normally for a day and a half.Tests confirmed that their blood was well oxygenated and, perhaps more remarkably, that the two halves of their diaphragms were working in step with each other.
Dr Cooper's observations of how the ribs and diaphragms of his patients tended to recover when healthy (and thus smaller) lungs were transplanted into their chests led him to reconsider Brantigan's work, and he realised that advances in technology meant the technique might now be made to succeed.Brantigan's problem was that only about 15% of emphysemics are suitable for the treatment.
By William ZarankaWhenas in jeans my Julia crams Her vasty hips and mammoth hams, And zips-up all her diaphragms, Then, then, methinks, how quaintly shows (Vermillion-painted as the rose) The laquefaction of her toes.Answer: Robert Herrick.
Two rubber diaphragms, designed to mimic the pumping action of the natural heart, were kept beating by an external compressor that was connected to the implant by hoses.
Two corrugated diaphragms sealed at their edges to form a capsule, which is evacuated, are used in aneroid barometers to measure atmospheric pressure (see altimeter).
Other screens and diaphragms block reflections of the photospheric image.
They are also safe to use with latex condoms and diaphragms.
