RESUMO
We demonstrate the hohlraum radiation temperature and symmetry required for ignition-scale inertial confinement fusion capsule implosions. Cryogenic gas-filled hohlraums with 2.2 mm-diameter capsules are heated with unprecedented laser energies of 1.2 MJ delivered by 192 ultraviolet laser beams on the National Ignition Facility. Laser backscatter measurements show that these hohlraums absorb 87% to 91% of the incident laser power resulting in peak radiation temperatures of T(RAD)=300 eV and a symmetric implosion to a 100 µm diameter hot core.
RESUMO
Women with chronic hypertension or renal disease are at a particular high risk of developing pre-eclampsia or eclampsia. Pre-eclampsia is associated with an increased risk of fetomaternal complications. In women with uncomplicated mild and moderate hypertension, pregnancy is usually normal. Treatment of high blood pressure aims at reducing maternal cardio- and cerebrovascular catastrophies, and the benefit of the treatment must be weighed against possible harmful effects on the foetus. In some cases, antihypertensive treatment can be discontinued, or medication changed. Preconceptional counselling is important both for women with chronic hypertension and, even more so, for women with renal disease, since the outcome of the pregnancy may be affected by the underlying disease.
