Diagnosis,Evaluation, and Treatment of Lead Poisoning in General Population

Among the heavy metals, lead still remains the major toxic pollutant of the environment. Human exposure to lead can occur through numerous pathways including air, food, dust, soil, and water. In the present study 14 lead poisoned patients with non-occupational lead exposure were evaluated. They were followed up and compared against the controls with no history of lead exposure. The patients had high blood lead levels and symptoms of weakness, dizziness, abdominal pain, generalized body ache, loss of appetite, and anxiety. Repeated course of chelation therapy helped to bring down their body burden of lead. Alternative sources for lead exposure can cause severe lead poisoning in general population. Screening and medical management of such individuals is very important to identify and eliminate sources of lead. The treatment and management requires a thorough medical evaluation and environmental intervention.     

Attitudes of secondary school students towards doing research and design activities

Research and design activities are often employed in STEM (Science, Technology, Engineering & Mathematics) education. This study aims to examine students’ attitudes towards doing research and design activities in secondary school, among two groups of students: (1) students that take the quite recently introduced Dutch subject O&O (research & design), in which students perform authentic research and design projects related to STEM disciplines; and (2) students that do not take O&O. The subject O&O is only taught at a limited number of certified, so called ‘Technasium’, schools. A questionnaire, developed by the authors, was completed by 1625 students from Grades 8 and 11. Unlike previous studies on student attitudes, which usually use abstract concepts like ‘science’ or ‘technology’, the questionnaire used in this study contains active verbs to characterise research and design activities. The results showed that, in general, students who took the subject O&O had more positive attitudes towards doing research and design activities than regular students. Both student groups appeared to find doing design activities more enjoyable than doing research activities. The results of this study provide useful information for teachers as well as teacher educators about the existing attitudes of students, for example their preference for design projects over research projects.     

如何保住你的工作

除非你是希尔顿失散多年的妹妹,否则你一定要为经济状况（以及如何保位你的职业）担心。莱昂纳多·兰黛作为雅诗·兰黛公司的主席管理数千人,他的建议可以帮助你远离被解雇的风险。     

Towards a codification of practical knowledge

As practical knowledge seems to have a central place in organisational issues, we focus on possibilities of studying and formalising it. From an unusual theoretical perspective, we view practical knowledge as embodied knowing that is only manifest through action in a particular situation. Although this knowledge is largely implicit, we try to make what is articulable explicit. After highlighting the stakes involved in the codification of practices, we review the ontological and epistemological assumptions underlying the method developed. The method is founded on participant observation, a video recording of a situated subjective perspective and an ex post interview using this perspective to aid an actor in making part of his/her practical knowledge explicit. We present its implementation within research on polar expeditions in order to understand how an experienced actor deals with risks. In conclusion, we point out (1) the importance of this kind of data in knowledge management, (2) some lines of further research.     

Attitudes of Secondary School STEM Teachers towards Supervising Research and Design Activities

Research and design activities are important focus points in international policies for secondary Science, Technology, Engineering and Mathematics (STEM) education. It is up to school teachers to implement and supervise these activities in the STEM classroom. However, not much is known about the attitudes teachers hold towards supervising research projects or design projects. In this study, a questionnaire to measure teacher attitudes towards supervising research activities and design activities in secondary school was completed by 130 Dutch teachers who taught the relatively new Dutch STEM subjects O&O (research and design) and NLT (nature, life, and technology). These integrated STEM subjects are project and context based and are taught in a limited number of schools. Important differences between these integrated STEM subjects are their student and teacher populations: NLT is taught in grades 10–12 by teachers with a qualification in a science subject, while O&O is taught in grades 7–12 and can be given by any teacher in secondary school. The results showed that on average, both O&O and NLT teachers had high self-efficacy scores on supervising research and design projects even when they had received no special education in doing so. Furthermore, the teachers in general viewed supervising research projects as a more relevant activity than supervising design. Since research and design activities are becoming more important in (inter)national curriculum standards, STEM teacher education and subsequent professional development should not only familiarize teachers with supervising research projects, but with design projects as well.

     

Teacher counternarratives: transgressing and ‘restorying’ disability in education

This inquiry aims to explore the disconnect between the disability studies in education (DSE) perspectives on inclusive schooling held by a group of dually certified inclusive educators and the everyday, lived experiences of these same teachers who find themselves teaching students with labelled disabilities within the confines of the special education bureaucracy. Through a collaborative inquiry circle (with a teacher educator who is a faculty member in a dual-certification programme informed by a DSE perspective and seven teachers who are graduates of this teacher education programme), this study aims to: (1) articulate the dominant narratives or storylines about disability in education that may ‘discipline’ teachers' practice within the special education bureaucracy; (2) illustrate some of the ways in which teachers do resist and transgress the discursive structures of schooling in ways that enable them to ‘restory’ disability in education; and (3) explore the implications of this work for preparing teachers to be dually certified, inclusive educators of all children in public schools.     

Critical Thinking,Caring and Professional Agency: An Emerging Framework for Productive Mentoring

In this paper, we report on a mentoring programme which provides an accreditation pathway to a master’s level qualification. The paper served three purposes. First, informed by selected literature on education we caution against expedient reductionist models that are based solely on novice–expert mentoring relationships with limited facility for critical inquiry. Second, we present an evolving theoretical framework for productive mentoring based on our critique of a preferred academic literature and interactions with mentor teachers, school principals and teacher educators. We proactively encouraged an awareness of societal norms and traditions that can appear as counterculture to critical thinking. Lastly, we consider some implications for productive mentoring as an academic, caring and professional practice within a continuum of teacher education.     

Assessing instructional conceptions: A task-based approach

ABSTRACT

This article addresses the labour market effects of two rather different forms of vocational education, full‐time education with practice periods that have no employment status versus dualized education with an emphasis on continuous on‐the‐job/in‐service training and employee status for the apprentice. Although most developed countries know both forms of vocational education, these usually have clearly different positions in a qualitative (standardization of curricula and degrees) and a quantitative (cohort shares) sense. The Netherlands present an interesting case, because in this country both systems coexist and contribute largely to the vocational training of each new generation. That provides a good opportunity for investigating differences in the labour market effects of these ‘treatments’ in vocational education. In this article, differences in labour market careers (i.e. the chances of getting promoted or getting unemployed) between graduates from full‐time vocational education and from the dual system are explored, using event history analysis. The results show that graduates from full‐time tracks have higher chances of getting promoted. However, the period of transition to the labour market is very unstable, involving job shifts and periods of unemployment. Graduates from the dual system on the other hand experience a more stable period of labour market entry. At the same time their careers often involve many dead‐end jobs, from which no promotion takes place. Moreover, they have difficulty in transfering their skills to other sectors than the sector for which they are trained.     

Load,stress, and recovery in adolescent rugby union players during a competitive season

Abstract

Despite increased professionalization of adolescent sport and improved articulation to elite adult participation, the impact of sports such as rugby union among adolescents is under-explored. This study describes psychological stress–recovery responses relative to training loads in 106 male adolescent rugby union players. The results showed that players with the highest training and physical activity volumes during the season demonstrated more favourable recovery–stress states than moderate- and low-volume groups. Stress and under-recovery did not increase with increases in weekly volume when assessed across a season. When assessed more acutely during intensive competition phases, stress and under-recovery increased with increases in participation demands. Despite better psychological stress and recovery profiles of more elite, higher-load players, not all participants demonstrated favourable capacities to deal with stress and recovery processes. Seven participants were in at least two of three categories of highest volume, highest stress, and poorest recovery. Even in the absence of a full understanding of the impact of high-volume, high-stress, poor-recovery participation among adolescent athletes, these markers may be precursors for more deleterious outcomes such as injury, performance decrements, and overtraining. Findings support the efficacy of serially monitoring young athletes.