醫(yī)生幫倒忙?(1)

科學(xué)60秒:醫(yī)生昏昏欲睡 手術(shù)患者擔(dān)責(zé)

Over the years ____1____ limit the hours of hospital interns and residents. Because someone putting in a 100-hour workweek might not be at their best when deciding which medication to prescribe o...

科學(xué)60秒:氟化物護(hù)牙之謎仍未解

Beauty is only ____1____. And the beauty of shiny white teeth is even less deep. Because a new study shows that fluoride forms a thinner protective shield than experts thought it did. The results...

太陽能熱水器 (1)

AfghanistanSolar water heaters are devices that use energy from the sun to heat water. Solar water heating is used around the world. The solar water heater described here is based on a design de...

醫(yī)生幫倒忙?(2)

有時候醫(yī)生會不會幫倒忙？反倒使病情嚴(yán)重了呢？So far, researchers have mostly investigated the stents themselves and how they are made. But now attention is turning also to the way they are being u...