Marxism-Leninism vs. revisionism

https://stars.library.ucf.edu/prism/1355/thumbnail.jp

America at the crossroads: Postwar problems and communist policy

https://stars.library.ucf.edu/prism/1180/thumbnail.jp

A qualitative assessment of preservice elementary teachers\u27 formative perceptions regarding engineering and K-12 engineering education

Current teacher education programs provide limited instruction for preservice elementary teachers regarding the incorporation or teaching of engineering concepts and skills in their classrooms. Few studies have been conducted that focus specifically on preservice elementary teachers\u27 formative perceptions and receptivity towards engineering education. That is, not enough is known about what preservice teachers know and think about engineering. The purpose of this qualitative research study was to investigate how forty-four preservice elementary teachers\u27 from a large Midwestern university approached engineering design, the perceptions of engineering and K-12 engineering education that they possessed, and their level of receptiveness with regards to K-12 engineering education. Data were collected using a demographic survey, journal entries, observations, and focus group discussions. The written, verbal, and visual data collected in this study were analyzed using conventional qualitative content analysis, which consisted of inductively developing categories and codes after repeatedly examining the data. The results of the study indicate that the preservice elementary teachers did not utilize any deliberate design process when engaged in a design task. Engineering was perceived as being synonymous with construction and that engineering design consists of trial and error. Participants envisioned their students succeeding in engineering due to their students\u27 prior knowledge, not necessarily the actions of themselves as the teacher. With regards to receptivity, participants expressed apprehension and optimism along with fear and pessimism. Tangential factors also impacted the receptivity of participants

Parameter identification for an abstract Cauchy problem by quasilinearization

A parameter identification problem is considered in the context of a linear abstract Cauchy problem with a parameter-dependent evolution operator. Conditions are investigated under which the gradient of the state with respect to a parameter possesses smoothness properties which lead to local convergence of an estimation algorithm based on quasi-linearization. Numerical results are presented concerning estimation of unknown parameters in delay-differential equations

Transmission cavity stabilization of microwave oscillators

A theoretical analysis of cavity stabilization of microwave oscillators is presented. The stabilization factor, admittance presented to the oscillator, and insertion loss of the system are determined from the parameters of this equivalent circuit

Agricultural aviation security

Wolf, Robert E. and Dennis R. Gardisser, Agricultural Aviation Security, Manhattan, KS, Kansas State University, March 2002

Estimation of Big Thompson flood rainfall using infrared satellite imagery

December, 1978.Includes bibliographical references.Sponsored by NSF ATM-8415127

Conservation of major and minor jelly-roll capsid proteins in Polinton (Maverick) transposons suggests that they are bona fide viruses

Peer reviewe