John Septimus Roe and the art of navigation, c. 1815-1830

In this paper, we consider the ways in which practices of drawing and surveying shaped the geographical imagination of British mariners in the tropics. The art of navigation involved a variety of skills, notably sketching and mapping. The history of naval survey and hydrography is often written from the centre, a more‐or‐less halting narrative of science, government and empire in which prominent naval officials hold the stage. Here, we start with a different view ‐ that of the surveyor in the field, or rather on board ship, working with his eyes and his hands to make a record of the voyage. The two views are not mutually exclusive: but the perspectives they give differ in important respects. Our focus in this paper is on a single figure ‐ John Septimus Roe, who later rose to prominence as Surveyor‐General of Western Australia. We are interested here in Roe's more humble early career, as midshipman and master's mate on a number of vessels during and after the Napoleonic Wars, which took him to various sites across the British empire, formal and informal: to the European theatre of war, to North and South America, the Gulf, India, Mauritius, Burma, South‐East Asia and tropical Australia. The images of Rio de Janeiro examined here form part of a corpus which raises much wider questions about the visual culture of navigation and the experience of observation in the early nineteenth century

Combining SysML and AADL for the design, validation and implementation of critical systems

The realization of critical systems goes through multiple phases of specification, design, integration, validation, and testing. It starts from high-level sketches down to the final product. Model-Based Design has been acknowledged as a good conveyor to capture these steps. Yet, there is no universal solution to represent all activities. Two candidates are the OMG-based SysML to perform high-level modeling tasks, and the SAE AADL to perform lower-level ones, down to the implementation. The paper shares an experience on the seamless use of SysML and the AADL to model, validate/verify and implement a flight management system

Developing a valid method to study adaptive behaviours with regard to IEQ in primary schools

Adaptive behaviour impacts the classroom's environment and the student's comfort. Therefore, a deep understanding of students' adaptive behaviour is required. This study aims to develop a valid and reliable method to realize how children in their late middle childhood (9–11) practise adaptive behaviours as a response to the classroom's Indoor Environmental Quality (IEQ). A self-reported questionnaire accompanied with an observation form is designed based on children's ‘here and now’ sensations, their cognitive and linguistic competence. Validity and reliability of the questionnaire were tested by running pilot and field studies in eight primary schools from July 2017 to May 2018. Through transverse sampling, 805 children were observed, and 1390 questionnaires were collected in 31 classrooms. Questions and responses of the designed questionnaire were validated by monitoring answer-process, non-participant observations, cross-checking questions and statistical tests. Validating process improved the wording of the questions and response categories and resulted in a questionnaire with a high and valid response rate. The reliability of the questionnaire was tested by measuring the variability and standard deviations of responses under similar conditions. To conclude, the study introduces a questionnaire and an observation form that should be used together to provide a valid and reliable method for studying adaptive behaviour of primary school children

Bourdieu and the dead end of reflexivity: on the impossible task of locating the subject

This article examines recent attempts by IR scholars to flesh out a reflexive approach inspired by the work of Pierre Bourdieu. The French sociologist pioneered the idea of turning the tools of sociology onto oneself in order to apply the same grid of social analysis to the object and subject of scholarship. This represents the culmination of a long tradition of seeking to understand from where one speaks and grasp our subjective biases through reflexive means. But as I argue Bourdieu – like most reflexive scholars – largely overestimated his ability to grasp his own subject position. For he assumed he could be objective about the very thing he had the least reasons to be objective about: himself. Instead of bending over backwards in this way and directly take the subject into account, I then propose to rearticulate the problematic of reflexivity by going back to a more classic concern with the question of alienation. Through a detailed critique of Bourdieu's reflexive approach and the ways in which it was received in IR, I set out a series of principles to reconfigure the agenda of reflexivity and offer a platform for a proper methodological alternative to positivism

What are the true clusters?

Constructivist philosophy and Hasok Chang's active scientific realism are used to argue that the idea of "truth" in cluster analysis depends on the context and the clustering aims. Different characteristics of clusterings are required in different situations. Researchers should be explicit about on what requirements and what idea of "true clusters" their research is based, because clustering becomes scientific not through uniqueness but through transparent and open communication. The idea of "natural kinds" is a human construct, but it highlights the human experience that the reality outside the observer's control seems to make certain distinctions between categories inevitable. Various desirable characteristics of clusterings and various approaches to define a context-dependent truth are listed, and I discuss what impact these ideas can have on the comparison of clustering methods, and the choice of a clustering methods and related decisions in practice