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This paper discusses the development of a low-cost, redundant, strapdown inertial measurement unit (IMU). The unit comprises four ceramic vibrating structure gyroscopes and four QLC 400 ac-celerometers configured on a truncated tetrahedron design. This design allows for the optimal configuration of the eight sensors, which in turn provides for a theoretical(More)
Intrachromosomal gene conversion has not shown a strong association with reciprocal exchanges. However, reciprocal exchanges do occur between intrachromosomal repeats. To understand the relationship between reciprocal exchange and gene conversion in repeated sequences the recombination behavior of an inverted repeat was studied. We have found that in one(More)
Experiments were carried out to seek evidence of an interaction between two viroid RNAs introduced to tomato plants in the same inoculum. At the level of symptom expression, the severe isolate of potato spindle tuber viroid (PSTV) dominated the mild isolate. Seventy-five percent of the plants inoculated with a 100-fold excess of the mild isolate developed(More)
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