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This descriptive study reports results from surveys and interviews to extend a 2004 study of K-5 elementary teachers. Results show the continued trend of teachers spending a minimal amount of time teaching history-social science compared to reading/language arts and mathematics. Teachers are pressured to focus on reading/language arts and increase test scores on standardized tests and history-social science is being marginalized in the elementary curriculum. In the 2006 data collection, teachers reported their commitment to teaching history-social science and related their struggles in teaching it. Many of the surveyed teachers are finding creative ways to carve out time in the school day to focus on history-social science. The article concludes with an appeal to social studies educators and professional organizations to reaffirm the importance of history-social science in the elementary curriculum with a clear articulation and dissemination of the goals and benefits of history-social science education.

Social studies is the combined study of several disciplines including cultural anthropology where expressive culture is defined and described. Expressive culture is the processes, emotions, and ideas bound within the social production of aesthetic forms and performances in everyday life. It is a way to embody culture and to express culture through sensory experiences such as dance, music, literature, visual media, and theater. By integrating the arts into social studies, students are introduced to cultural ideals, traditions, and norms inherent in their own lives. This article describes the use of cultural anthropology as a vehicle to teach social studies concepts with visual and performing arts. Two examples of coequal social studies and arts units are examined in second and sixth grades.

Two elementary teacher educators redesigned a methods course to integrate social studies and science. Using the framework of science-technology-society (STS) literature and the major themes from Paul Hurd, social studies and science content and methodology converge to create an integrated curriculum for preservice teachers. Concepts, processes, content knowledge, skills, and critical issues are among the interrelated themes of the course. This paper describes the design of the course and discusses how preservice teachers internalized the content. In addition, the successes and challenges of creating and teaching the course along with implications for teacher education are discussed.

In the last four years, since Volume I of this Bibliography first appeared, there has been an explosion of literature in all the main functional areas of business. This wealth of material poses problems for the researcher in management studies — and, of course, for the librarian: uncovering what has been written in any one area is not an easy task. This volume aims to help the librarian and the researcher overcome some of the immediate problems of identification of material. It is an annotated bibliography of management, drawing on the wide variety of literature produced by MCB University Press. Over the last four years, MCB University Press has produced an extensive range of books and serial publications covering most of the established and many of the developing areas of management. This volume, in conjunction with Volume I, provides a guide to all the material published so far.

Values have long guided special education services and supports for students with extensive support needs; over the past four decades, those values have been backed by research evidence demonstrating the critical nature of values related to inclusive education, self-determination, and seeking strengths and assets. In this chapter, we investigate these values and their supporting research, documenting strengths and needs in extant research. We emphasize the need to continue to embrace and maintain these values while pursuing research that addresses research gaps while centering the priorities, perspectives, and preferences of people with extensive support needs.

This paper aims to establish a numerical model to calculate contact pressure for rectangular vane sealing surface of hydraulic rotary actuator. Numerical model can be applied to solve the steady-state Reynolds equation after the oil film thickness and the contact pressure distribution curve of the vane sealing surface are obtained.

The authors established the numerical model of contact pressure base on the theory of elastic after, the Reynolds equation is solved by the inverse solution.

The relationship between the oil film thickness of vane sealing surface and the contact pressure on different sealing location for hydraulic rotary actuator is obtained. At the same time, the lubrication state on the surface of seal is also found when the hydraulic rotary actuator runs stably.

The study shows that the lubricating state of the vane sealing surface is mixed lubrication, when the rotor of the hydraulic rotary actuator is running stably at a certain speed. Meanwhile, this research will provide a theory basis for later experiment for the hydraulic rotary vane actuator.

Bangladesh recently experienced frequent demonstrations by drivers of ridesharing applications. Since the drivers are not excluded from the technology environment, rather they are a part of the digital ecosystem, these protests may point toward the existence of unequal interactional outcomes for different stakeholders afforded by the digital system within the country’s social and cultural contexts. This research is an attempt to unveil the reasons behind value inequality experienced by drivers of ridesharing applications in Bangladesh and understand how power asymmetries influence adverse digital incorporation that can result in the emergence of resistance.

We obtain the data by conducting interviews with 91 drivers of ridesharing platforms in Dhaka, Bangladesh and analyze our data using thematic analysis. We propose an integrated framework unifying adverse digital incorporation (ADI) with the “powercube” model to illuminate our inquiry.

We find the existence of all three drivers to ADI – ignorance/deceit, direct compulsion and exclusion – exclusion being the most prevalent – that are experienced by the drivers of ridesharing applications in Bangladesh. We also find support for the four causes behind value inequality – design inequality, resource inequality, institutional inequality and relational inequality with the respondents placing the highest emphasis on relational inequality. There are visible, hidden and invisible forms of power involved in how the drivers are incorporated into the ridesharing platforms. The forms of power in the platform environment are exercised primarily in closed spaces and the invited spaces for the drivers are very few. The drivers in response to the closed spaces of power create their own space (claimed space) through the help of social media and other messaging apps. We also find that the power over the drivers is exercised at global, national and local levels.

Our research identifies norms specific to the social and cultural contexts of Bangladesh and can help decision-makers to make more informed choices during the formulation of future digital platform guidelines. Based on the research findings, the paper also makes short-term and long-term policy recommendations.

This research has implications for creating a decent work environment for ridesharing drivers which broadly falls under the Sustainable Development Goal 8 (SDG 8).

To the best of the authors’ knowledge, this is the first paper that integrates the ADI model with the “powercube” framework to reveal that the drivers working on the ridesharing platforms in Bangladesh are adversely incorporated into the digital system where value inequalities are operating within the power dimensions.