Miami University

About: Miami University is a education organization based out in Oxford, Ohio, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 9949 authors who have published 19598 publications receiving 568410 citations. The organization is also known as: Miami of Ohio & Miami-Ohio.

An Interweaving MOF with High Hydrogen Uptake

Abstract: An interweaving copper metal−organic framework possessing high porosity and high hydrogen uptake has been successfully designed and synthesized.

The Teacher-Student Relationship as an Interpersonal Relationship.

Abstract: Communication skills, as defined by Burleson and Samter (1990), were examined in the teacher‐student relationship. Three questions guided this investigation: (a) with regard to effective teaching, what are students’ perceptions of the importance of communication skills and immediacy behaviors? (b) what is the relationship between students’ perceptions of teachers’ use of communication skills, immediacy behaviors, motivation and learning? and (c) do male and female students differ in their perceptions of communication skill and immediacy behaviors in regard to importance, motivation, and learning? Two studies were conducted. Study one found that students reported referential skill, ego support, and conflict management as being most important to effective teaching. Study two found referential skill, ego support, and immediacy to have a strong relationship with student learning and motivation. Some sex differences also were found and explored in both study one and two.

Attachment to and biofilm formation on abiotic surfaces by Acinetobacter baumannii: involvement of a novel chaperone-usher pili assembly system.

Abstract: Acinetobacter baumannii causes severe infections in compromised patients, survives on abiotic surfaces in hospital environments and colonizes different medical devices. In this study the analysis of the processes involved in surface attachment and biofilm formation by the prototype strain 19606 was initiated. This strain attaches to and forms biofilm structures on plastic and glass surfaces, particularly at the liquid-air interface of cultures incubated stagnantly. The cell aggregates, which contain cell stacks separated by water channels, formed under different culture conditions and were significantly enhanced under iron limitation. Electron and fluorescence microscopy showed that pili and exopolysaccharides are part of the cell aggregates formed by this strain. Electron microscopy of two insertion derivatives deficient in attachment and biofilm formation revealed the disappearance of pili-like structures and DNA sequencing analysis showed that the transposon insertions interrupted genes with the highest similarity to hypothetical genes found in Pseudomonas aeruginosa, Pseudomonas putida and Vibrio parahaemolyticus. Although the products of these genes, which have been named csuC and csuE, have no known functions, they are located within a polycistronic operon that includes four other genes, two of which encode proteins related to chaperones and ushers involved in pili assembly in other bacteria. Introduction of a copy of the csuE parental gene restored the adherence phenotype and the presence of pili on the cell surface of the csuE mutant, but not that of the csuC derivative. These results demonstrate that the expression of a chaperone-usher secretion system, some of whose components appear to be acquired from unrelated sources, is required for pili formation and the concomitant attachment to plastic surfaces and the ensuing formation of biofilms by A. baumannii cells.

Mountaintop mining consequences

Abstract: growing scientifi c evidence of the negative impacts . Our analyses of current studies and water-quality data from WV streams revealed serious environmental impacts that mitigation practices successfully Published studies human health impacts.