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    A drug that is used to treat serious bleeding could save thousands of lives of mothers giving birth. A world test of the drug found it reduced (降低) the risk of bleeding deaths during childbirth by nearly one third. The study included 20,000 women in 21 countries, mainly in Africa and Asia. The test was carried out by London School of Hygiene and Tropical Medicine. The drug is called tranexamic acid (凝血酸). It is low-cost and researchers said it does not cause serious side effects (副作用) for mothers or babies.

    The drug is used to treat mothers for serious bleeding during childbirth. Postpartum hemorrhage (产后出血) is the main cause of mothers' death around the world, according to the World Health Organization.

    Haleema Shakur is the project director for the test. She said though medical condition is improved in many countries, serious bleeding after childbirth remains a big problem in some parts of the world. “It's one of the biggest killers of mothers. In Africa and Asia, about 10% of women will end up with serious bleeding.” The drug works after a mother gives birth.

    Shakur said the best results were reported when the drug was given to women as soon as possible after childbirth. “The earlier you give it — within the first three hours after giving birth — the better the result is.”

    The next step will be to provide training for doctors and nurses on how to use it and then to find where the drug is needed. During the test, women were given the drug in a hospital. But researchers are looking for easier ways to use the drug so it can be more widely used in small clinics and the countryside.

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    There is a lot to learn about the creations of Beatrix Potter—not only is she the author of one of the world's most famous children 's books, The Tale of Peter Rabbit ,but also a pioneering conservationist(自然资源保护论者) with the spirit of a scientist.

    “Potter grew up as the daughter of a wealthy Victorian family, but along with her brother who filled an entire floor of their large house in London with all sorts of animals, which contributed a lot to her works,” said Anne Lundin, a retired professor for the UW-Madison School of Library and Information Studies.

    “As an adult, she was a frustrated botanical scientist. That field was not open to her because she was female,” Lundin said. Potter was urged to turn the charming stories she wrote in letters to children into books. She wrote 23 books in all--a body of work that has inspired plays, ballets, films and an astonishing amount of merchandise.

    “The Tule of Peter Rabbit is probably the most famous children's book in the world, which was published in 1902 and has really stood the test of time. It's been translated into 36 languages. The parents and grandparents will share it with the next generation,” said Lundin.

    Potter also made a mark on the world through her land conservation.“In many ways, she was like Peter Rabbit, risking into a world of adventure. She withdrew from London as soon as she started making some money on her books to the Lake District and became an extremely important farmer and conservationist. She preserved and passed on 15 farms and over 4,000 acres, which were given back to the country as gifts in the 20th century,” said Lundin.

    Even though she was born 150 years ago, she was amazingly modern--her embracing of the natural world, commented Jennifer Blatchley Smith, an artistic director of the show Peter Rabbit Tales to celebrate the 150th anniversary of Potter's birth.