Reconstruction and virtual model of the Schickard calculator

Exhibition of objects such as paintings or historical artefacts often involves a common problem: the objects presented are unique, delicate and, therefore, very valuable. On the other hand, these objects should be made accessible to scholars and educators. We present an application of modern 3D computer graphics in the field of reconstructing ancient scientific instruments. The first-four-species calculator of Wilhelm Schickard is made accessible to the public in the World Wide Web using Java 3D.     

Anthropogenic emission is the main contributor to the rise of atmospheric methane during 1993–2017

Atmospheric methane (CH₄) concentrations have shown a puzzling resumption in growth since 2007 following a period of stabilization from 2000 to 2006. Multiple hypotheses have been proposed to explain the temporal variations in CH₄ growth, and attribute the rise of atmospheric CH₄ either to increases in emissions from fossil fuel activities, agriculture and natural wetlands, or to a decrease in the atmospheric chemical sink. Here, we use a comprehensive ensemble of CH₄ source estimates and isotopic δ¹³C-CH₄ source signature data to show that the resumption of CH₄ growth is most likely due to increased anthropogenic emissions. Our emission scenarios that have the fewest biases with respect to isotopic composition suggest that the agriculture, landfill and waste sectors were responsible for 53 ± 13% of the renewed growth over the period 2007–2017 compared to 2000–2006; industrial fossil fuel sources explained an additional 34 ± 24%, and wetland sources contributed the least at 13 ± 9%. The hypothesis that a large increase in emissions from natural wetlands drove the decrease in atmospheric δ¹³C-CH₄ values cannot be reconciled with current process-based wetland CH₄ models. This finding suggests the need for increased wetland measurements to better understand the contemporary and future role of wetlands in the rise of atmospheric methane and climate feedback. Our findings highlight the predominant role of anthropogenic activities in driving the growth of atmospheric CH₄ concentrations.     

Educational administration and supervision in Japan

The administration and supervision of education represents one of the most controversial issues in post-war Japanese education. The basic issue is one of centralization or decentralization. The left wing teachers union favours local control, the conservative government, central control. The American Occupation established a system of local school boards which, as a result of political lobbying, were largely controlled by teachers union sympathisers. In 1956, four years after the end of the Occupation, the Japanese government eliminated the election of board members and replaced voluntary compliance with compulsory compliance with Ministry of Education objectives. This compulsory compliance was most clearly demonstrated in the central authorization of textbooks and in the implementation of theshunin system, which, the teachers union claims, introduces too many administrative positions into schools and further bureaucratized education. The Ministry claims that theshunin positions serve a guidance rather than an administrative function; the union on the other hand foresees the disruption of the unity of its rank and file members as a result of the insertion of a middle management wedge. Theshunin controversy clearly demonstrates how the administration of Japanese education has become enmeshed in partisan politics and Japanese history and tradition.     

ISD model building: From tabula rasa to apple peel

An evidence‐based practice (EBP) model is proposed to replace the more‐art‐than‐science “rope bridge” currently spanning the defining space of a training need and the designing space of a training curriculum. The rope bridge analogy symbolizes a way to address perceived deficiencies and research gaps in the analysis‐design‐development‐implementation‐evaluation (ADDIE) model. Not to be construed as mere window dressing, a developmental model of EBP‐adherent instructional design is offered as a prototype for changing ADDIE's internal landscape and making instructional design more effective.     

Ecologically minded teaching

This study builds upon ongoing research of ecological mindedness by exploring how teachers appraise and incorporate ecological care, interconnectedness, and ecological integrity into lesson planning, as well as how teachers reconcile these qualities with their current professional responsibilities. These topics are explored through educational connoisseurship and criticism, using think alouds to learn from teachers as they plan lessons with the qualities of ecological mindedness as a framework. Findings indicate that teachers view ecological mindedness as relevant for schools in terms of content, engagement, and students’ lives; as compatible with standards and other external mandates; and as a form of character education.     

New evidence of relative age effects in “super-elite” sportsmen: a case for the survival and evolution of the fittest

The relative age effect (RAE) describes an overrepresentation of players born early (Q1) in a selection year and is highly prevalent within youth sport pathways. However, a dearth of research has investigated the RAE at the “super-elite” level. The present research assessed the presence of RAE in super-elite performers. Study 1 investigated RAEs in the world’s best international Test cricketers (N = 262) over a 20-year period according to a robust and stringent “super-elite” criteria. Results revealed the RAE (Q1) when all disciplines were combined. Upon closer examination, this effect was also observed for the batting and spin bowling disciplines, whereas no RAE was found for the pace bowling discipline. Study 2 investigated RAEs in super-elite rugby union players (N = 691) over a 20 year period. Results revealed the RAE for backs (Q1) and a reversal of the traditional RAE (Q4) for forwards, and when all rugby union positions were combined. These findings provide new evidence of RAEs at the super-elite level and present both inter and intra sports differences. Potential explanations for these findings are explored, owing to the survival and evolution of the fittest concepts, and the implications for future research and applied practice are presented.