41.   Scientific theory and the limited clinical evidence available so far suggest that the way to fight resistance is through combining anti-HIV drugs.

42.   Science books also were entangled in feuds over whether the books should contain biblical references to creationism alongside scientific theories of evolution.

43.   Some teachers take a low-key approach to teaching evolution, the scientific theory that living things share common ancestors but change over time.

44.   Such instantaneous flashes of insight have shaped history in profound ways, inspiring new scientific theories as well as lively artistic, philosophical and religious movements.

45.   That seems a tragedy, given that evolution has become one of the best established of all scientific theories.

46.   The clinical trial, not scientific theory, remains an absolute necessity.

47.   The new standards are based on scientific theories accepted by the majority of scientists around the world.

48.   The significance of these bones is that they may lend credence to a scientific theory that people other than American Indians are the real First Americans.

49.   There, Rasetti found evidence that scientific theories of the composition of atomic nuclei were incomplete.

50.   They think that a scientific theory has to be computational.