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But perhaps the grandmother of church-sponsored fair-trade projects is Ten Thousand Villages , started 58 years ago by the Mennonite Central Committee , the relief and development agency of the Mennonite and Brethren in Christ denominations . The company response to this leak involved shutting the leaking tower down , followed by development of a medical surveillance program for refinery and other workers including open-ended symptoms surveys and biological monitoring for several Catacarb constituents , including boron and vandadium . Directional tuning is very common for many PPC neurons , with different neurons coding for different preferred directions .