340 research outputs found

    2-Chloro-4-(1H-pyrazol-1-yl)-5-(trifluoro­meth­yl)pyrimidine

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    The reaction of 2,4-dichloro-5-(trifluoro­meth­yl)pyrimidine with 1H-pyrazole gave two structural isomers in a 1:1 ratio that were separable by chromatography. The title compound, C8H4ClF3N4, was the first product to elute and was characterized in the present study to confirm that substitution by the pyrazolyl group had occurred at position 4. The mol­ecule (with the exception of the F atoms) is essentially planar, with a mean deviation of 0.034 Å from the least-squares plane through all non-H and non-F atoms. The bond angles in the pyrimidine ring show a pronounced alternating pattern with three angles, including those at the two N atoms being narrower, and the remaining three wider than 120°

    Human Dimensions of Contraception in Wildlife Management

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    Wildlife damage management was so much simpler in the good old days. If deer (Odocoileus virginianus), beaver (Castor canadensis), or other animals were a problem in a particular situation, people simply had them shot, trapped, or poisoned. Not many years ago, most people would go along with this approach, and those who didn\u27t like it were marginalized as the radical fringe. Not so today. Greater and more diverse segments of the public want a say in what professionals decide to do with their wildlife. The public wants to participate in setting objectives for management and in approving the methods for accomplishing those objectives. Kania and Conover (1991) emphasized that wildlife agencies should respond to these societal changes rather than resist them, thereby enhancing the value of the wildlife resource for all people. Changes in sociopolitical values have resulted in more stakeholder groups who want to be included in wildlife management decisions today than at any other time since the advent of applied wildlife management in North America (Curtis and Richmond 1992)
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