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Cedar Falls, IA, United States

The University of Northern Iowa is a university located in Cedar Falls, Iowa, United States. UNI offers more than 90 majors across the colleges of Business Administration, Education, Humanities, Arts, and science, and Social and Behavioral science, and graduate college.UNI has consistently been named one of the "Best in the Midwest" in the Princeton Review Best 351 College Rankings guide, and has ranked second in the category "public regional universities " by U.S. News & World Report for twelve consecutive years. UNI's accounting program has consistently ranked in the top 10 universities in the nation for the pass rate of first-time candidates on the CPA Exam.Class sizes at UNI average around 32 students; they are mostly taught by faculty, not teaching assistants. Tenured and tenure-track faculty teach 75 percent of UNI's classes. The Fall 2013 enrollment is 12,159. Ninety-two percent of its students are from the State of Iowa, in the United States.For students interested in studying abroad, UNI is ranked fourth in the nation for the total number of students who study abroad among master's degree institutions, according to Open Doors 2002, the annual report on international education published by the Institute of International Education. Wikipedia.

Pease P.,University of Northern Iowa
Spectrochimica Acta - Part B Atomic Spectroscopy | Year: 2013

Laser-induced breakdown spectroscopy is a powerful analytical method, but LIBS is subject to a matrix effect which can limit its ability to produce quantitative results in complex materials such as geologic samples. Various methods of sample preparation, calibration, and data processing have been attempted to compensate for the matrix effect and improve LIBS precision. This study focuses on sample preparation by comparing fused glass as a preparation for powdered material to the more commonly used method of pressing powder into pellets for LIBS analysis of major elements in complex geologic materials. Pelletizing powdered material is a common and convenient method for preparing samples but problems with the physical matrix brought on by inconsistencies in the homogeneity, density, and laser absorption, coupled with the chemical matrix problem lead to spectral peak responses that are not always consistent with the absolute concentration of representative elements. Twenty-two mineral and rock samples were analyzed for eight major oxide elements. Samples were prepared under both glass and pellet methods and compared for internal precision and overall accuracy. Fused glass provided a more consistent physical matrix and yielded more reliable peak responses in the LIBS analysis than did the pressed pellet preparation. Statistical comparisons demonstrated that the glass samples expressed stronger separability between different mineral species based on the eight elements than for the pressed pellets and showed better spot-to-spot repeatability. Regression models showed substantially better correlations and predictive ability among the elements for the glass preparation than did those for the pressed pellets. © 2013 Elsevier B.V.

Weiss W.M.,University of Northern Iowa
Journal of sports sciences | Year: 2010

In the present study, we examined an expanded model of sport commitment by adding two determinants (perceived costs and perceived competence) and behavioural commitment as a consequence of psychological commitment, as well as identifying psychological commitment as a mediator of relationships between determinants and behavioural commitment. Competitive female gymnasts (N = 304, age 8-18 years) completed relevant measures while coaches rated each gymnast's training behaviours as an indicator of behavioural commitment. Path analysis revealed that the best fitting model was one in which original determinants (enjoyment, involvement opportunities, investments, attractive alternatives) and an added determinant (perceived costs) predicted psychological commitment, in addition to investments and perceived costs directly predicting behavioural commitment. These results provide further, but partial, support for the sport commitment model and also suggest that additional determinants and behavioural consequences be considered in future research.

Lee Y.,University of Northern Iowa
Decision Support Systems | Year: 2011

This study investigates factors affecting the adoption of anti-plagiarism software. Using protection motivation theory as a basis, this research examines the influence of threat and coping appraisals, along with social influences, moral obligation, and actual control variables, on the adoption of anti-plagiarism software. A field survey of 218 faculty members working at U.S. public universities reveals that threat appraisals have a stronger influence on the adoption of anti-plagiarism software than do coping appraisals. The faculty members' moral obligation, academic rank, class size, percentage of creative assignments, and gender significantly affect software adoption, whereas social influence does not. Key implications for theory and practice are discussed. © 2010 Elsevier B.V. All rights reserved.

Brown S.A.,University of Northern Iowa
Drug and Alcohol Dependence | Year: 2011

Despite indications that the stigma associated with substance use is high and may play a role in discouraging treatment participation, there is limited research in this area and only a few psychometrically sound measures of substance use stigma exist. The purpose of this study was to formulate and evaluate the psychometric properties of three substance use stigma measures. College students (N= 565) completed three measures of substance use stigma that were modified from three established measures of mental illness stigma. Two of the three modified measures (Social Distance Scale for Substance Users and Affect Scale for Substance Users) emerged as having acceptable psychometric properties, whereas one modified measure (Dangerousness Scale for Substance Users) had inadequate psychometric properties. In regard to sex differences, women had significantly higher substance use stigma on the two psychometrically sound measures (p< .01). Perhaps, with standardized measures, there can be greater progress towards better understanding the mechanisms leading to high levels of substance use stigma and ultimately address failures to seek out treatment due to stigma. © 2011 Elsevier Ireland Ltd.

In one aspect of the invention, an ion trap mass analyzer includes a variable- or multi-potential type ion guide (MPIG) assembly which has been pre-configured to produce a parabolic-type potential field. Each MPIG electrode has a resistive coating of designed characteristics. In one example the coating varies in thickness along the length of an underlying uniform substrate. The MPIG assembly can be a single MPIG electrode or an array of a plurality of MPIG electrodes. An array can facilitate delocalization for improved performance. This chemical modification of a uniform underlying substrate promotes cheaper and flexible instruments. The modified MPIG electrodes also allow miniaturization (e.g. micro and perhaps even nano-scale), which allows miniaturization of the instrument in which the single or plural modified MPIG electrode(s) are placed. This promotes portability and field use instead of limitation to laboratory settings.

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