91.   Besides making budget planners happy, researchers said, Pathfinder could pay off in the form of high morale among the next generation of astronauts, scientists and engineers.

92.   Because pesticides potentially dangerous to the bird are still in use in other countries, researchers say they need to know where the birds go in their wide-ranging travels.

93.   Because previous approaches combined women who live closer to and those who live farther from the sites, they failed to detect elevated risk, researchers said.

94.   Because the adhesin molecule is the same in different strains of E. coli, one vaccine works against most strains, the researchers said.

95.   Because the technology is still evolving, researchers at Boeing say the earliest widespread use of structural health monitoring will be in unmanned aircraft.

96.   Birth control pills may help women fend off ovarian cancer by reducing the number of times they ovulate, researchers said.

97.   Birth control pills, which suppress ovulation through hormones, appear to help prevent it, the researchers said.

98.   Beneath the soil, the researchers say, they detected yet more lake sediments, deposited by even earlier incarnations of Victoria.

99.   Boston researchers say new evidence suggests that it does.

100.   Both researchers said they are still optimistic that with refinements, photodynamic therapy may yet yield longer lasting benefits.

n. + say >>共 480
official 17.88%
police 6.16%
analyst 4.36%
report 3.78%
source 3.33%
spokesman 3.05%
company 2.65%
expert 2.16%
authority 1.82%
government 1.60%
researcher 0.46%
researcher + v. >>共 450
say 19.69%
find 8.84%
be 4.75%
believe 2.70%
use 2.12%
have 2.00%
report 1.80%
hope 1.76%
look 1.60%
suggest 1.40%
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