Abstract Background Widespread access to antiretrovirals has resulted in improved survival among PLHIV resource-limited settings. In a previous study, ART failure the Philippines after one year was found be 10.3%. However, this done as cross-sectional study and did not capture dropouts or pre-existing drug resistance (PDR). Treatment failure, taking into account PDR, dropouts, long-term viral s...

We study the long-term dynamics of the PSR 1257+12 planetary system. Using the recently determined accurate initial condition by Konacki & Wolszczan (2003) who derived the orbital inclinations and the absolute masses of the planets, we investigate the system stability by long-term, 1 Gyr direct integrations. No secular changes of the semi-major axes, eccentricities and inclinations appear durin...

We demonstrate an optically controlled polarizer at ~1323 nm using a ladder transition in a Rb vapor cell. The lower leg of the 5S(1/2),F = 1->5P(1/2),F = 1,2->6S(1/2),F = 1,2 transitions is excited by a Ti:Sapphire laser locked to a saturated absorption signal, representing the control beam. A tunable fiber laser at ~1323 nm is used to excite the upper leg of the transitions, representing the ...

Rev Esp Cardiol 2002;55(12):1323 1323 A 78-year-old man who had undergone coronary artery surgery in 1993 with the implantation of saphenous vein grafts to the right coronary and obtuse marginal coronary, and of the left internal mammary to the anterior descending coronary, presented episodes of angina pectoris at rest. Coronary angiography disclosed total occlusion of the 3 native vessels, cri...