Word: blocks
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Dates: during 1990-1999
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...kill by Jellison through the hands of two Stony Brook blockers forced a Sea Wolves sideout, and a Jellison block on the Crimson's next possession allowed Harvard to tie the game. A Denniston kill forced match point, and Harvard went on to win the final game...
Wampler and her students illustrate the latest math concept in elementary education: kindergarten = first grade. Kindergarten--so fondly remembered by baby boomers for show-and-tell and building blocks--has changed. Standardized curriculum and testing in primary schools are causing what educators call "push-down" academics. The need to perform well on tests filters down, landing on the youngest learners. As a result, kindergartners spend less time on social skills while interacting with one another in the "dress-up corner" or building wood-block skyscrapers. They spend more time sitting still, listening to the teacher and drilling on the basics...
Remarkably, there are other people--sober, scientific people--who agree. For centuries, doctors have considered the spinal cord an impossible thing to heal. Choked by proteins that block regeneration, denied other proteins that foster growth, dammed up by scar tissue at the site of an injury, a spinal cord that gets hurt tends to stay hurt. But for more than a decade, researchers have been learning to overcome these problems, figuring out ways to heal damaged cords and switch the power back on in spines long since gone dead. Even if Reeve and others don't walk by 2002, there...
Much of what is behind the new hope is a better understanding of why the cord doesn't heal itself. In 1988 neuroscientist Martin Schwab of the University of Zurich isolated substances in the central nervous system whose sole purpose appears to be to block growth. In a healthy spine, the chemicals establish boundaries that regulate cell growth. After an injury, they do little but harm. In recent years, however, Schwab has developed antibodies that neutralize the growth blockers, allowing regeneration to occur...
...tumor has acquired the mutations for spreading, the doctor of the future may call on matrix metaloproteinase inhibitors, a new kind of drug that can be taken orally to block the enzymes a tumor uses to break down the cells of surrounding tissue and invade it. Vaccines cobbled together from whole cancer cells or bits and pieces of those cells have been shown to boost the body's immune system, helping it recognize and kill tumors on its own. "This was all a dream five years ago," marvels John Minna, director of the Hamon Center for Therapeutic Oncology Research...