The U-Pb dating (SHRIMP-II on zircon) was obtained for the first time from the basement of the West Siberian Plain in the Western half of the region. It is established that a large part of the protolith of the metamorphic depth in the Shaim-Kuznetsov meganticlinorium contained sedimentary late- and middle-Devonian rocks (395-358 million years).…

The paper presents a methodology which helps to avoid a great amount of costly experimental research. This methodology includes thermo-gas dynamic design of an engine and its mounts, the profiling of compressor flow path and cascade design of guide vanes. Employing a method elaborated by Howell, we provide a theoretical solution to the task of…

What, if any, benefit might there be to applying creativity research to cooking? The purpose of this paper was to address this question. Specifically, we draw on concepts and theories from creativity research to help clarify what is meant by creative cooking. This includes exploring creative cooking through the lens of the 4-C and Propulsion…

This paper argues that the dominant framework for conceptualizing validation evidence and analysis--the "five sources" framework from the 1999 "Standards"--is seriously limited. Its limitation raises a significant barrier to understanding the nature of comprehensive validation, and this presents a significant threat to…

This article provides an overview of the status of leadership in social work, with an emphasis on unique functions and challenges leaders face in the field. Included in this review is a consideration of the concept of leadership as distinct from management, a historical review of the development of leadership as a specialty within social work, and…

Within the discussion of the development of commonsense theories of motion, recent research has established that throughout middle childhood, reasoning about motion down inclines changes with increasing age. To investigate this shift in more detail, this study investigated 5- to 11-year-old children's understanding of motion down curved slopes,…

This chapter defines leader developmental readiness, presents a conceptual model, and discusses implications for practitioners supporting leaders before college, during college, and in early career stages.

Although students' personal passions typically determine the issue addressed by service-learning leadership initiatives, this chapter advocates for a community-centered alternative. This in-depth exploration of a leadership development course series models a community-need driven project and explores the benefits for both community and student…

The purposes of this study were twofold: 1) to examine the influence of performance expectancy, and effort expectancy on secondary school students attitudes toward the use of a mathematics online homework package called MyiMaths; and 2) to predict the factor that best influences their attitudes. A 15 item, five-point Likertscale instrument was…

In 2017, almost everywhere in the world, there was a boom in sales of fidget spinners. A toy that has 'multi-lobes' that can rotate freely from a thrust performed with the fingers. Thereby, we analysed the physics concepts that involved in this toy, such as angular and linear velocity. We did the analysis using the software Tracker, a laboratory…

The purpose of this study is to investigate the impact of context-based chemistry education on the metacognition and multiple-intelligences of preservice chemistry teachers, and their achievement in chemistry lessons in the laboratory environment that includes the 4Ex2 model. Within the framework of the general chemistry laboratory lesson, the…

The autobiographical memory model of posttraumatic stress disorder (PTSD) argues that centralizing a traumatic event into one's life story is a maladaptive process associated with increased PTSD symptoms. Current measures of event centralization make no reference to whether individuals centralize the event in a positive or negative way. This study…

In this paper, we present and discuss a framework for considering the quality of primary teachers' mediating of primary mathematics within instruction. The "mediating primary mathematics" framework is located in a sociocultural view of instruction as mediational, with mathematical goals focused on structure and generality. It focuses on…

Psychometric measurement models are only valid if measurement invariance holds between test takers of different groups. Global model tests, such as the well-established likelihood ratio (LR) test, are sensitive to violations of measurement invariance, such as differential item functioning and differential step functioning. However, these…

This article describes a grantmanship framework for high school science educators. The scenario described illustrates the importance of grant writing in an era of increased school accountability and tightened purse strings. The framework presented can be used for most STEM-related projects and can guide educators toward high-quality instruction…