Word: heating
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...that her class seems so hurried, "but there just isn't enough time to cover everything we need to cover." Her local school district has instigated a "reading initiative" as a way to prod the kindergartners to read by the end of the year, and Wampler is feeling the heat. "Some kids begin to click with reading," she says, "but it's not happening with every...
...culture. Snyder then teamed up with Dr. Jeff Macklis, a colleague at Harvard Medical School who had engineered a strain of mouse whose neurons died off in a tiny region of the cortex where cells were not known to regenerate. Snyder injected the stem cells into the mice. Like heat-seeking missiles, the cells rapidly sought out the injured part of the cortex and transformed themselves into healthy neurons. "That's the beauty of stem cells," says Snyder. "You don't have to find the injury--the stem cells do it for you. They instinctively home in on the damage...
Scientists are also focusing on the differences between two types of fat cells, known as brown and white. The former, active in young mammals (including humans), convert fat into heat rather than storing it. That's crucial in newborns, whose temperature-regulation systems aren't fully formed. As we age, the brown cells become inactive and the white, which convert dietary fat to body fat, take over. Several research teams have found that by reactivating the brown cells in an adult animal with medication, they can burn off fat dramatically. Now the doctors are looking for a genetic switch that...
...born storyteller, he often recalled his childhood in a tiny village northwest of Beijing. Like most Chinese peasants of that era, Zhenbing's parents were too poor to buy coal. Instead, in a climate like Boston's, where winter temperatures often plunged below zero, they burned dried leaves to heat their mud hut. Their home's inside walls were often white with frost from November to April...
...There, an unusual place called an "eco-industrial park" shows how much can be gained by recycling and resource sharing. Within the park, a power company, a pharmaceuticals firm, a wallboard producer and an oil refinery share in the production and use of steam, gas and cooling water. Excess heat warms nearby homes and agricultural greenhouses. One company's waste becomes another's resource. The power plant, for example, sells the sulfur dioxide it scrubs from its smokestacks to the wallboard company, which uses the compound as a raw material. Dozens of these eco-industrial parks are being developed...