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spec: A compound developed as an offshoot of drug abuse research is proving effective as a memory enhancer in mice with learning impairments similar to those associated with Alzheimer 's disease . Although the Roundup label recommends a rate of 50-100 % for cut-stump treatment , a 50 % solution has proven effective . While the Roundup label recommends a 50-100 % concentration of Roundup for stump treatment , a 10-20 % concentration has proven effective . Him he called forth . The faculty of 6,500 professors is available to the more than 100,000 students , and together they form an institution of higher learning that serves a vital role in Mexican and Latin American academic life . The District proposed , as a new issue , the `` 55 acre expansion of the monofill site and its intended usage .