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A Gratifying Divergence : Immigrant Settlement and the National Narrative in Willa Cather\u27s My Ántonia
Full text linkThis essay examines Cather\u27s 1923 essay Nebraska: The End of the First Cycle and her 1918 novel My Ántonia to analyze her representation of the immigrant figure that simultaneously defines the region (Nebraska) and enriches the story of America. The essay contextualizes Cather\u27s writing within the statutes of nineteenth-century homesteading legislation, which allowed Nebraska to be settled and the nation to expand westward. It first considers opportunities and challenges afforded by homesteading, and then discusses Cather\u27s use of immigrant settlement and the cycles of storytelling it produces to revise monolithic interpretations of the national narrative
Two new species of Dulcicalothrix (Nostocales, Cyanobacteria) from India and erection of Brunnivagina gen. nov., with observations on the problem of using multiple ribosomal operons in cyanobacterial taxonomy
Full text linkTwo new species of Dulcicalothrix, D.adhikaryi sp. nov. and D.iyengarii sp. nov., were discovered in India and are characterized and described in accord- ance with the rules of the International Code of Nomenclature for algae, fungi, and plants (ICN). As a result of phylogenetic analysis, Calothrix elsteri is reas- signed to Brunnivagina gen. nov. During comparison with all Dulcicalothrix for which sequence data were available, we observed that the genus has six ribosomal operons in three orthologous types. Each of the three orthologs could be identified based upon indels occurring in the D1–D1′ helix sequence in the ITS rRNA region between the 16S and 23S rRNA genes, and in these three types, there were operons containing ITS rRNA regions with and without tRNA genes. Examination of complete genomes in Dulcicalothrix revealed that, at least in the three strains for which complete genomes are available, there are five ribosomal operons, two with tRNA genes and three with no tRNA genes in the ITS rRNA region. Internal transcribed spacer rRNA regions have been consistently used to differentiate species, both on the basis of secondary structure and percent dissimilarity. Our findings call into ques- tion the use of ITS rRNA regions to differentiate species in the absence of efforts to obtain multiple operons of the ITS rRNA region through cloning or targeted PCR amplicons. The ITS rRNA region data for Dulcicalothrix is woe- fully incomplete, but we provide herein a means for dealing with incomplete data using the polyphasic approach to analyze diverse molecular character sets. Caution is urged in using ITS rRNA data, but a way forward through the complexity is also proposed
The Difference in Fitness and Lower Body Power Based on Mobility Status in First Responders
Full text linkFirst responders have physically demanding jobs with an increased risk of injury. Previous research has shown that asymmetry of mobility and stability in the lower extremity is associated with an increased risk of lower extremity injuries, while increased fitness and lower body power are associated with a reduced risk of injury. However, there is limited research examining the relationship between lower limb asymmetry, fitness, and lower body power output in first responders
