Methods(1)4 cities were chosen randomly according to their economic status and geographical location.(2)An autorefractor was used to detect the diopter in the preschool children from 20 kindergartens randomly selected from each of the 4 cities.(3)1%atropine ointment was applied to the c onjunctival sac of the children with suspect myopia for 3 days and the refractio n of light in their retina was then examined by a barred beam skiascope.(4)The eye axis and corneal curvature of the myopic children were measured.(5)The diop ter,eye axis,and corneal curvature were examined every 6 months during 1-year f ollow-up after the diopter was properly rectified.

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John Ringwalt's homestate operation now consists of five companies, with Kansas Fire and Casualty Company becoming operational late in 1977 under the direction of Floyd Taylor. The homestate companies had net premium volume of $23 million, up from $5.5 million just three years ago. All four companies that operated throughout the year achieved combined ratios below 100, with Cornhusker Casualty Company, at 93.8, the leader. In addition to actively supervising the other four homestate operations, John Ringwalt manages the operations of Cornhusker which has recorded combined ratios below 100 in six of its seven full years of existence and, from a standing start in 1970, has grown to be one of the leading insurance companies operating in Nebraska utilizing the conventional independent agency system. Lakeland Fire and Casualty Company, managed by Jim Stodolka, was the winner of the Chairman's Cup in 1977 for achieving the lowest loss ratio among the homestate companies. All in all, the homestate operation continues to make excellent progress.

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John Ringwalt's homestate operation now consists of five companies, with Kansas Fire and Casualty Company becoming operational late in 1977 under the direction of Floyd Taylor. The homestate companies had net premium volume of $23 million, up from $5.5 million just three years ago. All four companies that operated throughout the year achieved combined ratios below 100, with Cornhusker Casualty Company, at 93.8, the leader. In addition to actively supervising the other four homestate operations, John Ringwalt manages the operations of Cornhusker which has recorded combined ratios below 100 in six of its seven full years of existence and, from a standing start in 1970, has grown to be one of the leading insurance companies operating in Nebraska utilizing the conventional independent agency system. Lakeland Fire and Casualty Company, managed by Jim Stodolka, was the winner of the Chairman's Cup in 1977 for achieving the lowestloss ratio among the homestate companies. All in all, the homestate operation continues to make excellent progress.

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He proved that the left ward turning of Yangtze river diluted water is mainly resulted from the interaction between the bottom declining and the lag of the transversal pressure gradient, made the numerical simulation and preliminary study on the thermohaline staircase structure formation mechanism, improved American Academician Wunsch's inverse method of ocean circulation, jointed the discover of " Mindanao Under Current", which is the first ocean current found and named by Chinese scientists and widely accepted over the world, simulated the horizontal and vertical carbon fluxes in East China Sea by a simple ecosystem model, estimated the photosynthesis efficiency less than 8% in Jiaozhou Bay, applied statistical downscaling technology to Chinese coast and Japanese islands realizing the simulation and forecast of sea level low frequency variations, pointed out that the quasi-periodicity of El Nino events should be resulted from the interaction between the 3~4 year oscillation in tropical Pacific and decadal oscillation in the northern Pacific of middle latitudes of the air-sea coupled climate system and at decadal time scale the precipitation influence on sea level variation along Chinese coast and Japanese islands becomes more important, which is closely related to the decadal oscillation of air-sea coupled climate system, therefore precipitation most likely play a major role for the decadal oscillation formation;; proposed Extended Associate Pattern Analysis to analyse combined observed datasets of sea surface temperature and sea level pressure or geopotential hight at 1000 hPa (GH1000) over the Pacific and related seas.

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To contribute to the progress of agricultural technology, China has made remarkable achievements in agricultural development. There is a historic change in the supply of major agricultural products from a long-term shortage to surplus in foison year. The grain output increased from 113.18 million tons in 1949 to 484.022 million tons in 2005, and the annual growth rate is 5.85%. Technological advances have made tremendous contributions to Chinas grain development.

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Because of the formation of mud flats and mangroves along the coast, large numbers of migratory birds from around the world are attracted to Taiwan, where they use these coastal areas as a temporary shelter and rest area before they resume their journey. In spring and summer there are the birds that leave the tropics behind to spend this season in Taiwan, such as the eye-catching fairy pitta, known in Chinese as the eight-color bird, while during autumn birds from colder northern areas come to Taiwan to spend the winter, such as the black-faced spoonbill of which only 530 are left worldwide. Each year the gray-faced buzzard will be right on time to participate in the Double Tenth celebrations (Taiwan's national day), and there are also countless other migratory birds that use Taiwan either as a stopover or as their final destination, one way or the other adding exuberant vitality to Taiwan's wildlife.

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