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Biomedical subjects

R L Leonard

Publications and source records attributed to R L Leonard.

5 recordsLinked to original sources
PubMed1975

Self-concept and attraction for similar and dissimilar others.

The present study investigated the role of self-concept as a moderator of the similarity-attraction relationship described by Byrne. Subjects conducted face-to-face interviews with confederates who played roles as job applicants. Similarity-dissimilarity was manipulated by the confederate roles as well as by the information given the subjects in accordance with the procedures described by Byrne. The hypothesis was tested and confirmed that persons with favorable self-concepts would be more attracted to others with similar attitudes than to others with dissimilar attitudes. Persons with negative self-concepts did not show a preference for similar others. It was suggested that earlier studies in this area suffered from methodological flaws and did not constitute an adequate test of the hypothesis. Suggestions for future work in the area were given.

Attitude↗
PubMedDate not supplied

Meteorite organics in planetary environments: hydrothermal release, surface activity, and microbial utilization.

Up to 50% of the organics in the Murchison meteorite, possibly including some of the polymer, is released in high temperature and pressure aqueous environments, to 350 degrees C and 250 bar, that simulate submarine volcanic, hydrothermal or impact-induced conditions. Meteorite organics of prebiotic significance, such as nonanoic acid, glycine, and pyrene survive the hydrothermal conditions. The released material is surface active with surface pressures up to 19.8 x 10(-3) N m-1, and exhibits an extended surface tension isotherm which suggests a mixture of amphiphilic components. One component, nonanoic acid, is shown to form vesicles. The materials extracted under mild conditions, at 120 degrees C, are nutrients for the humic acid bacterium Pseudomonas maltophilia and efficient nutrients for the oligotroph Flavobacterium oryzihabitans, demonstrating the capability of microorganisms to metabolize extraterrestrial organics.

Carbon↗
PubMedDate not supplied

Nursing education: developing specification equations for selection and retention.

Because nursing is a professional area in which costs continue to rise faster than in other academic areas, it is imperative to provide quality education that is within the financial reach of those students who can benefit from it. This study sought to develop a specification equation that could be used to predict retention in the academic area and workplace.

Education, Nursing, Baccalaureate↗
PubMedDate not supplied

Snakebite deaths in Australia 1992-1994 and a management update.

Twelve deaths attributed to snakebite were reported in 1992-1994. Eight of the victims were males, and brown snakes (genus Pseudonaja) were involved in six of the deaths. Deaths caused by brown snakes were often sudden and unexpected, and autopsy findings were usually unremarkable. In no case was prompt effective first aid applied. The importance of appropriate first aid is emphasised and an update on management presented.

Adult↗