| comparison of conventional direct and enrichment culture methods for erysipelothrix spp. from experimentally and naturally infected swine. | the objective of the current study was to compare the diagnostic performance of a direct isolation method for erysipelothrix spp. with a broth-based enrichment technique. samples were obtained from three sources: 1) experimentally inoculated pigs, 2) porcine tissue samples submitted to the iowa state university veterinary diagnostic laboratory (ames, ia), and 3) tissues from condemned carcasses at an abattoir. culture plates from direct isolation and broth-based technique were evaluated for grow ... | 2009 | 19901291 |
| data from 11 years of molecular typing infectious bronchitis virus field isolates. | in 1993, a new molecular typing method for infectious bronchitis virus (ibv) was introduced. this method uses reverse transcriptase-polymerase chain reaction (rt-pcr) and restriction fragment length polymorphism (rflp) analysis of the spike gene to obtain rflp patterns that correlate with serotype. using that test at the poultry diagnostic and research center (pdrc, university of georgia, athens, ga), we have identified a total of 1523 ibv isolates in the past 11 yr. the data were obtained from ... | 2005 | 16405010 |
| cross-cultural comparison of clinical samples of norwegian and iowan women with substance-related disorders. | the purpose of this study was to compare two clinical samples of women substance abusers, one from iowa and one from norway, along several dimensions: "substance abuse" history, current "abuse" pattern, parental and spouse drinking history, symptoms of psychological distress, and "vulnerability" to relapse. a higher percentage of women substance abusers from iowa were divorced and lived alone, were "vulnerable" to relapse, and reported more life problems secondary to their substance use than wom ... | 2001 | 11794585 |
| heterogeneity in the familial aggregation of fasting serum uric acid level in five north american populations: the lipid research clinics family study. | this study represents the first formal examination for heterogeneity in the familial aggregation of fasting serum uric acid (ua) levels. data from 5 clinics (cincinnati, stanford, iowa, minnesota, and oklahoma) participating in the lipid research clinics (lrc) family study, which included a total of 685 nuclear families (n = 2,146), were analyzed. heterogeneity among the clinics in familial resemblance was detected. however, this heterogeneity could not be attributed to differences in distributi ... | 1990 | 2368810 |