Comparison of total body water estimates from O-18 and bioelectrical response prediction equations

Identification of an indirect, rapid means to measure total body water (TBW) during space flight may aid in quantifying hydration status and assist in countermeasure development. Bioelectrical response testing and hydrostatic weighing were performed on 27 subjects who ingested O-18, a naturally occurring isotope of oxygen, to measure true TBW. TBW estimates from three bioelectrical response prediction equations and fat-free mass (FFM) were compared to TBW measured from O-18. A repeated measures MANOVA with post-hoc Dunnett's Test indicated a significant (p less than 0.05) difference between TBW estimates from two of the three bioelectrical response prediction equations and O-18. TBW estimates from FFM and the Kushner & Schoeller (1986) equation yielded results that were similar to those given by O-18. Strong correlations existed between each prediction method and O-18; however, standard errors, identified through regression analyses, were higher for the bioelectrical response prediction equations compared to those derived from FFM. These findings suggest (1) the Kushner & Schoeller (1986) equation may provide a valid measure of TBW, (2) other TBW prediction equations need to be identified that have variability similar to that of FFM, and (3) bioelectrical estimates of TBW may prove valuable in quantifying hydration status during space flight

Sensitive sexualities: dichotomized discourse in the erasure of bisexuality

A combination of Q methodology and a Think Aloud task explored how cultural knowledge about bisexuality is constructed and maintained. Q methodology revealed positive interpretations of bisexuality. Critical Discourse Analysis of the Think Aloud task however, exposed the maintenance of dualistic categories of sex, gender and sexuality acting as ‘operating systems’ and strategically guiding the social representation of bisexuality as ‘non-existent’, ‘deviant’, ‘abnormal’ and/or ‘promiscuous’. The findings of this study suggest that overt heterosexism is not becoming extinct; instead it has found rather subtle ways of incorporating itself into ‘liberal’ discourses

A Model to Restructure Nursing Education- Vision on 22nd Street

Since 1993, the Cleveland State University Department of Nursing and the Visiting Nurse Association of Cleveland have been involved in an innovative partnership known as Vision on 22nd Street. This partnership has produced a model to restructure the nursing curriculum and the practice setting in such a way that a seamless process, fully integrated within university and agency operations, prepares undergraduate nursing students for community-based practice. The groundwork supporting the model, the development of the curriculum, the preparation of participants, and the implementation of the model for program evaluation are the subject of this article

Bison and Cattle Digestion of Forages from the Slave River Lowlands, Northwest Territories, Canada

Dry matter disappearance (DMD) of native forages collected from the Slave River Lowlands (SRL), Northwest Territories, was consistently greater in bison (Bison bison) than in Hereford cattle (Bos taurus) when measured with a nylon bag technique. Overall average DMD values were 52% and 39% for bison and cattle, respectively. Mean percent DMD values for each plant species were: willow (Salix spp.), 56; slough sedge (Carex atherodes), 50; baltic rush (Juncus balticus), 47; aleppo avens (Geum aleppicum), 44; and northern reedgrass (Calamagrostis inexpanse), 39. Dry matter disappearance was inversely correlated (P 0.05) in DMD between two bison fed the hay ration and two fed hay plus the supplement.This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries.The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact [email protected] for further information.Migrated from OJS platform August 202

Using Online Education to Transition Teaching Assistants to Teacher Certification: Examining the Differences Between Teacher Education Programs

Elementary education teacher candidates who studied under two delivery methods—online and face to face—were compared to determine if there was a significant difference in professional knowledge and skills using Praxis II test scores. The participants included 60 teaching assistant program (TAP) online candidates and 564 face-to-face candidates. The two groups’ perceptions of self-efficacy were also compared. Results indicated a significant difference in professional knowledge based on Praxis II test scores and no significant difference in perceptions of self-efficacy. Although both groups felt confident in their teaching abilities, the traditional candidates outperformed TAP candidates on Praxis II. However, in the ancillary findings of this study, 41.6% of traditional candidates were admitted to the teacher education program with a Praxis I exemption, whereas only 23.4% of TAP candidates were exempt from the requirement. This suggests that traditional candidates entered the program at a more advanced level than the TAP candidates, possibly explaining the significant difference in the finding of the Praxis II test scores