KUALA LUMPUR, Malaysia — Singapore conducted its first execution of a woman in 19 years on Friday and its second hanging this week for drug trafficking despite calls for the city-state to cease capital punishment for drug-related crimes. Activists said another execution is set next week. Saridewi Djamani, 45, had been sentenced to death in 2018 for trafficking nearly 31 grams (1.09 ounces) of diamorphine, or pure heroin, the Central Narcotics Bureau said.