Aristotle’s Rhetoric: How it Plays into Effect between Managers and Consultants at a University Speaking Center

This paper looks at a mid-size state university’s speaking center. At this speaking center, managing peers oversee consultants for hour-long shifts, and those who work together during these hour-long shifts are referred to as shift families.

The Investigation of Silica Removal in Reverse Osmosis Concentrate by Changing Design Parameters

Silica at high concentrations can precipitate and polymerize, forming scales on heat exchangers, boilers and turbines in industrial equipment, and on the feed side of the semi-permeable membranes in Reverse Osmosis (RO). Silica scale can cause decreased efficiency, increased treatment costs and, in some cases, irreversible damage. The removal of silica scale is challenging because it requires the handling of dangerous and hazardous chemicals. Therefore, much research has gone into the removal of soluble silica. The purpose of this research was to compare the overall effectiveness of silica removal in RO concentrate water with freshly precipitated Mg(OH)2 and Fe(OH)3,and calcined Hydrotalcite (HTC) by changing the design parameters adsorbent dose and pH. To complete this work, 15 experiments (12 batch experiments and 3 flow through experiments) were performed. Initial batch studies investigated and compared the effects of changing the dose and on silica removal for freshly precipitated Mg(OH)2 and Fe(OH)3,and calcined HTC. The results showed that, for all materials, an increased dose at pH 10 led to increased silica removal. Then, using the three materials, the effect of pH was investigated on silica removal. When the pH was increased from 9 to 11, trends in silica removal varied for the three materials. Furthermore, batch studies were completed on the three materials to determine the sorption density and sorption kinetics onto the solids. The sorption densities were used to determine the most applicable isotherm (Freundlich or Langmuir) and identify isotherm parameters for the materials. All three materials fit the Freundlich isotherm model and based on isotherm parameters, the largest adsorption capacity was determined to be HTC and the most intense adsorption was determined to be Fe(OH)3. The sorption kinetics were examined for zero, first and second order kinetics to determine a rate constant for silica adsorption reactions. It was discovered that all three materials fit the second order kinetics models and the uptake rates were determined to be 3.0 X 10-4 mg/L×min for Mg(OH)2, 9.0 X 10-5 mg/L×min for Fe(OH)3 and 7.0 X 10-5 mg/L×min for HTC at various doses. Using the results of the batch tests, a flow through system was constructed and used to examine the material’s capacities on a larger scale and determine if 70% silica removal can be maintained. The results showed that when the materials were compared, HTC could achieve the target percent silica removal at a lower dose than Mg(OH)2 and Fe(OH)3 but, all three materials could maintain silica removal on a large scale. This study provides important information for water treatment industries looking to remove soluble silica from water

Strategic conformity and nonconformity: integrating institutional theory, the resource-based view of the firm and creativity research

This paper proposes an integration of institutional theory, which explains the pulls of strategic conformity, and the resource-based view of the firm, which identifies the importance of strategic nonconformity. It suggests that the absence or presence of creativity in firm culture explains whether firms will make explicit whether to conform to or reject institutional norms. Creativity, as used here, is defined as the development of novel and practical ideas that provide a platform from which institutional norms can be challenged. A model of competitive strat-egy as imitative, therefore imitable; incremental, imitable over time, or innova-tive, as good as inimitable, is developed. Alignment between institutional and firm cultures produces strategic conformity. Paradoxically, the pervasive influ-ence of taken-for-granted norms may be challenged through the institutionaliza-tion of creativity within firm culture. Firms who value creativity may elect to conform to institutional conventions but do so consciously. Enabling factors that influence the choice of strategy include a need for legitimacy, tolerance of risk, diversity of viewpoints and expression, firm size, leadership style, organizational design and rewards structure

Detection of Single Electron Charging in an Individual InAs Quantum Dot by Noncontact Atomic Force Microscopy

Single electron charging in an individual InAs quantum dot was observed by electrostatic force measurements with an atomic force microscope (AFM). The resonant frequency shift and the dissipated energy of an oscillating AFM cantilever were measured as a function of the tip-back electrode voltage and the resulting spectra show distinct jumps when the tip was positioned above the dot. The observed jumps in the frequency shift, with corresponding peaks in dissipation, are attributed to a single electron tunneling between the dot and the back electrode governed by Coulomb blockade effect, and are consistent with a model based on the free energy of the system. The observed phenomenon may be regarded as the ``force version'' of the Coulomb blockade effect.Comment: 4 pages, 4 figure

Szabálysértési ügyekben történő döntéshozatal a laikusok szemével

A kutatás fő célja annak a feltérképezése, hogy a jogi végzettséggel nem rendelkező személyek (laikusok) szerint az elkövetett szabálysértések tekintetében a hatóságoknak a döntéshozataluk során milyen szempontokat kell(ene) figyelembe vennie, illetőleg a figyelembe veendő körülményeket milyen súllyal szükséges értékelni. A tanulmány célja továbbá a jogszabályi előírásokat összevetése a kutatás eredményeivel