Fitness. Are physically fit people less likely to die of cancer? An article in the May 2002 issue…

Fitness. Are physically fit people less likely to die of cancer? An article in the May 2002 issue of Medicine and Science in Sports and Exercise reported results of a study that followed 25,892 men aged 30 to 87 for 10 years. The most physically fit men had a 55% lower risk of death from … Continue reading "Fitness. Are physically fit people less likely to die of cancer? An article in the May 2002 issue…"

Molten iron. The Cleveland Casting Plant is a large, highly automated producer of gray and…

Molten iron. The Cleveland Casting Plant is a large, highly automated producer of gray and nodular iron automotive castings for Ford Motor Company. The company is interested in keeping the pouring temperature of the molten iron (in degrees Fahrenheit) close to the specified value of 2550 degrees. Cleveland Casting measured the pouring temperature for 10 … Continue reading "Molten iron. The Cleveland Casting Plant is a large, highly automated producer of gray and…"

Babies. Medical researchers at a large city hospital investigating the impact of prenatal care on…

Babies. Medical researchers at a large city hospital investigating the impact of prenatal care on newborn health collected data from 882 births during 1998 2000. They kept track of the mother s age, the number of weeks the pregnancy lasted, the type of birth (cesarean, induced, natural), the level of prenatal care the mother had … Continue reading "Babies. Medical researchers at a large city hospital investigating the impact of prenatal care on…"

Flowers. In a study appearing in the journal Science, a research team reports that plants in…

Flowers. In a study appearing in the journal Science, a research team reports that plants in southern England are flowering earlier in the spring. Records of the first flowering dates for 385 species over a period of 47 years show that flowering has advanced an average of 15 days per decade, an indication of climate … Continue reading "Flowers. In a study appearing in the journal Science, a research team reports that plants in…"

Herbal medicine. Scientists at a major pharmaceutical firm conducted an experiment to study the…

Herbal medicine. Scientists at a major pharmaceutical firm conducted an experiment to study the effectiveness of an herbal compound to treat the common cold. They exposed each patient to a cold virus, then gave them either the herbal compound or a sugar solution known to have no effect on colds. Several days later they assessed … Continue reading "Herbal medicine. Scientists at a major pharmaceutical firm conducted an experiment to study the…"

Streams. In performing research for an ecology class, students at a college in upstate New York…

Streams. In performing research for an ecology class, students at a college in upstate New York collect data on streams each year. They record a number of biological, chemical, and physical variables, including the stream name, the substrate of the stream (limestone, shale, or mixed), the acidity of the water (pH), the temperature (°C), and … Continue reading "Streams. In performing research for an ecology class, students at a college in upstate New York…"