Word: foreign
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Dates: during 1960-1969
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...like a letter T. The middle part of the T varies little from antibody to antibody. The chains' ends at the tips of the crossbar constitute the antibody's active regions and can be varied in billions of different ways to fit the structure of the particular foreign molecule that it is equipped to combat...
When any vertebrate animal is "invaded" by foreign proteins-whether bacteria, viruses, or tissues from another animal as in a graft or transplant-the invaders soon meet one of the host's body cells that is armed with the appropriate antibody. This contact is a signal to the cell to divide. Its progeny also divide and soon there is an army of antibodies, each able to seize and hold two invading molecules. Powerful scavenger cells such as phagocytes then can go into action and effectively remove both combatants...
Last week the House Interstate and Foreign Commerce Committee opened hearings aimed at providing some of the answers. Congress will need the answers soon. The Federal Communications Commission has voted 6 to 1 to ban cigarette advertising on radio and television, which it regulates, but it needs congressional approval to enforce such an act. The Federal Trade Commission wants to strengthen the current ineffectual warning on cigarette packs, which now reads...
...continue to grow. They are backed up by laboratory evidence. Experiments, often sponsored by the industry, are continuing with mice, dogs, baboons and other animals. Tests on chickens at Arthur D. Little Co. in Boston have shown that smoke gases temporarily paralyze the tiny, hairlike cilia that normally keep foreign matter clear of the lungs. Other animal research has identified a number of suspected carcinogens in cigarette smoke. At the House hearings last week, U.S. Surgeon General William Stewart repeated his conviction: "I think we have established cause and effect in lung cancer. I don't think there...
Britain's economy is considerably weaker than Jenkins admitted. Technically bankrupt, with foreign debts that greatly exceed its reserves of gold and foreign currencies, the country depends on international loans to support the pound. Sterling's devaluation 17 months ago was supposed to give Britain time to overcome its chronic trade deficit, the main source of its precarious financial condition. Instead, the country wound up with a 1968 trade deficit of $1.1 billion, and the red ink has continued to flow this year. Last week the Board of Trade reported a March trade deficit of $124.8 million...