A systematic review and Bayesian meta-analysis of the development of turn taking in adult–child vocal interactions

Fluent conversation requires temporal organization between conversational exchanges. By performing a systematic review and Bayesian multi-level meta-analysis, we map the trajectory of infants’ turn-taking abilities over the course of early development (0 to 70 months). We synthesize the evidence from 26 studies (78 estimates from 429 unique infants, of which at least 152 are female) reporting response latencies in infant–adult dyadic interactions. The data were collected between 1975 and 2019, exclusively in North America and Europe. Infants took on average circa 1 s to respond, and the evidence of changes in response over time was inconclusive. Infants’ response latencies are related to those of their adult conversational partners: an increase of 1 s in adult response latency (e.g., 400 to 1400 ms) would be related to an increase of over 1 s in infant response latency (from 600 to 1857 ms). These results highlight the dynamic reciprocity involved in the temporal organization of turn-taking. Based on these results, we provide recommendations for future avenues of enquiry: studies should analyze how turn-by-turn exchanges develop on a longitudinal timescale, with rich assessment of infants’ linguistic and social development.     

The rivalry of the French and American educational missions during the Vietnam War

From 1955 to 1975, the French and the Americans were both active in the educational field in South Vietnam, but their objectives were different. The French were concerned with preserving their influence with the Vietnamese elites and relied on the Mission Culturelle – the heir of the colonial Direction of Education – and its prestigious high schools. The Americans wanted to improve the level of education of the population and strived to reform the Vietnamese administration in order to make South Vietnam a nation strong enough to bar the advance of communism. The main operator was USAID, which coordinated and funded the activities of expert teams, and particularly of academic missions. The French deeply resented the American intrusion into what they believed to be their historical area of cultural influence, and they perceived the United States as aggressive towards them. The Americans did not oppose the French cultural presence but they did try to eliminate those parts of the French legacy – particularly the teaching methods and the administrative structures – that they considered to be obsolete and an obstacle to their reforms. The battle between those two cultural traditions was waged by their Vietnamese supporters, with long-time Francophiles on one side and US-trained educators and administrators on the other. However, this competition was partly artificial, as the French and Americans actually needed each other. Their educational missions also had to deal with the circumstances of the war in Vietnam. In the early 1970s, the French resigned themselves to the dismantling of their educational network while American reform met with substantial resistance in South Vietnamese society, which resented the Americanisation of an educational system that mixed the Confucian and the French academic traditions, as symbolised by the enduring popularity of the Baccalaureate examination that still exists today in Vietnam.     

Increasing Educational Attainment and Aspiration in an Underserved Community: The Perspective of Urban-Community Leaders

Latino students are significantly underrepresented in higher education. As the largest and fastest growing racial/ethnic population in the US, this is cause for national concern. Additionally, this rapid population growth is a call for community and school leaders from underserved communities to assess their service areas and focus on interventions to increase the college-going rates of youth. Maywood is a city located in Southeast Los Angeles. Like many other urban areas, Maywood’s largely Latino population is underrepresented in higher education. This research focused on interviewing Maywood’s community and school leaders (n = 24) to gain insight into their perceptions of their role and responsibility to address issues surrounding their community’s low levels of educational attainment. A key theme emerged revealing that leaders understand their community’s educational issues but do not see their role as leaders to directly address this issue to build a college-going culture. Implications for practice in strengthening community partnerships and developing a college-going culture are provided and a series of recommendations for the creation of a college-going culture are discussed.     

Development of a scale to measure economic status of students in rural vietnam

Family economic status is generally considered to be an important factor associated with students’ educational outcomes. However, to evaluate the strength of this contention, it is important to first have appropriate measures of family economic status. Measuring the economic status of Vietnamese people has been particularly difficult as the respondents have not been able to report accurately on their income. This has been compounded in rural populations, because of the relative economic homogeneity of communities. This study constructed, calibrated and validated a set of items to form a measure of economic status of students’ families in rural Vietnam.     

Using Stakeholder Input to Guide Cultural and Contextual Adaptations for a Universal School-Based Intervention

The Urban Review - Strong student–teacher relationships foster students’ social, emotional, and academic development, particularly for students from marginalized racial/ethnic groups....     

Introducing a tool to gauge curriculum quality under Sustainable Development Goal 4: The case of primary schools in Vietnam

International Review of Education - The purposes of the study presented in this article were twofold. One was to respond to the question: what makes a quality curriculum? within the framework of...     

Local synthesis of carbon nanotubes for direct integration in Si microsystems - design considerations

The integration of nanomaterials such as carbon nanotubes （CNTs） into microsystems is highly desirable, in order to make use of the unique nanomaterial properties in real devices. However, the CNTtomicrosystem integration is challenging to implement in a manufacturable, cost effective industrial process. This paper presents our work towards a process for making complete, integrated CMOS / MEMS systems with integrated CNT. We demonstrate the feasibility of the process, using roomtemperature process ing, lowcost equipment and consumables, and electrical control with automation possibilities. CNTs are directly integrated at the desired positions in the Si microsystem, forming closed Si / CNT / Si circuits. We explore different designs with the aim to obtain uniform and welldefined CNT synthesis conditions, and show that simplified designs can perform comparably to more complex ones. The Si / CNT / Si circuits obtained can show rectifying （Schottky like） or nearohmic behavior. Gas sensing possibilities are demonstrated, indicating the possibility of monitoring aging/ fermenting of food. Functionalization of CNTs is demon strated, using thermal evaporation of Sn and Pd, opening for selective and sensitive sensors for various gases and ana lytes. Detailed microscopic characterization of the obtained CNTs are presented.     

Field tested milliliter-scale blood filtration device for point-of-care applications

In this paper, we present a low cost and equipment-free blood filtration device capable of producing plasma from blood samples with mL-scale capacity and demonstrate its clinical application for hepatitis B diagnosis. We report the results of in-field testing of the device with 0.8–1 ml of undiluted, anticoagulated human whole blood samples from patients at the National Hospital for Tropical Diseases in Hanoi, Vietnam. Blood cell counts demonstrate that the device is capable of filtering out 99.9% of red and 96.9% of white blood cells, and the plasma collected from the device contains lower red blood cell counts than plasma obtained from a centrifuge. Biochemistry and immunology testing establish the suitability of the device as a sample preparation unit for testing alanine transaminase (ALT), aspartate transaminase (AST), urea, hepatitis B “e” antigen (HBeAg), hepatitis B “e” antibody (HBe Ab), and hepatitis B surface antibody (HBs Ab). The device provides a simple and practical front-end sample processing method for point-of-care microfluidic diagnostics, enabling sufficient volumes for multiplexed downstream tests.     

A revised model of e-brand equity and its application to high technology products

Given the growing importance of online social media platforms (OSM) in brand management, the authors attempt to extend the relationship between e-brand equity and repurchase intention with two mediator variables, namely visual appeal and e-preference in which willingness to pay a price premium (WPPP) serves as a moderator. Drawing on the perspective of digitalized engagement (PDE), the authors confirm the mediating effects on the e-brand equity-repurchase intention link while evidencing both positive and negative effects of WPPP on the linkage of e-brand equity and mediators. Contributions to theory, practice, and future studies are also provided.