Publications

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nitrogen fixation (acetylene reduction) associated with roots of winter wheat and sorghum in nebraska.root segments and root-soil cores (6.5-cm diameter) from fields and nurseries of winter wheat and sorghum were tested for n2 fixation by using the acetylene reduction assay. wheat samples (approximately 1,200) from 109 sites generally had low or no activity (0 to 3.1 nmol of c2h4 produced per h per g [dry weight] of root segments), even after 24 h of incubation. however, a commercial field of scout 66, located in western nebraska, exhibited appreciable activity (290 nmol of c2h4 produced per h p ...1978623458
microbiologic survey of long-term care facilities.we undertook a microbiologic survey of long-term care facilities to categorize bacteria found in cultures of residents. culture and sensitivity data were collected on 566 samples from indwelling bladder catheters, percutaneous gastrostomy tubes, nares, stool, wounds, pressure ulcers, and tracheostomies in 25 nebraska and iowa facilities. information was also collected on resident factors (eg, presence of indwelling urinary catheter, prior antibiotic administration) and institutional variables (e ...200010679131
whole genome mapping of the first reported case of kpc-2-positive klebsiella pneumoniae st258 in nebraska.three ertapenem-resistant klebsiella pneumoniae carrying bla(kpc-2) were isolated from a single patient in nebraska over a span of 5 months. a comparative analysis of the genetic relatedness of these isolates was investigated using pulsed-field gel electrophoresis, multilocus sequence typing, and whole genome mapping.201424813687
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