Organic Farming - Nature Conceptions, Management and Cross Compliance

Organic farmers perceptions of qualities in nature do not clearly correspond with the biologists ideas of nature quality. The differences in perception hold both opportunities and conflicts

Behavior of the lean methane-air flame at zero-gravity

A special rig was designed and constructed to be compatible with the NASA Lewis Research Center Airborne Research Laboratory to allow the study of the effect of gravity on the behavior of lean limit in a standard 50.4 mm (2 in.) internal diameter tube when the mixtures are ignited at the open end and propagate towards the closed end of the tube. The lean limit at zero gravity was found to be 5.10% methane and the flame was found to extenguish in a manner previously observed for downward propagating flames at one g. It was observed that g-jitter could be maintained at less than + or 0.04 g on most zero g trajectories. All of propagating lean limit flames were found to be sporadically cellularly unstable at zero g. There was no observable correlation between the occurrence of g-jitter and the lean limit, average propagation speed of the flame through the tube or the occurrence of cellular instability

Mentoring and the Impact of Local Teacher Organizations

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Økologisk Jordbrug - Naturoplevelser, natursyn og Cross-compliance

Økologiske landmænds opfattelse af naturkvalitet stemmer ikke entydigt overens med de biologiske definitioner. Forskellen i måderne at anskue naturværdier på rummer både konflikter og muligheder

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Nontraditional Students in Higher Education: Meeting Their Needs as Learners

The research literature indicates nontraditional students in higher education are different from their traditional counterparts. Understanding our university clientele is important in being able to meet their needs. Instructors are encouraged to analyze their teaching strategies and to incorporate those which can further aid older students in their educational pursuits

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Index of Authors: 2000

Index of Author

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