Theory‐of‐mind during childhood: Investigating syntactic and executive contributions

Both syntax and Executive Functions (EF) are involved in Theory‐of‐Mind (ToM) but their contributory roles have mainly been studied separately. Moreover, researchers have mostly administered False Belief (FB) tasks while they may not be representative of all ToM abilities. Studies of adults give valuable information regarding whether syntax and EF are useful for ToM reasoning (i.e., Reasoning account), however, only the study of children brings direct evidence in favor of ToM emergence (i.e., Emergence account). Also, because the ToM tasks used often entail verbal and executive demands, the links observed could mostly result from such confounds (i.e., Expression account). We evaluated ToM, syntactic and EF abilities in 126 children (3‐11 y.o.) using a set of ToM tasks with minimal verbal and executive demands. Our goals were to assess (1) the hierarchical contribution of syntax and EF to ToM, (2) whether results previously obtained for FB tasks are representative of ToM in general, (3) whether the ToM‐syntax and ToM‐EF links are constant (i.e., Reasoning account) or decrease during development (i.e., Emergence accounts). Results of stepwise regression analyses showed a predominant role of syntax over EF to predict ToM abilities. The comparison of results for ToM and FB tasks showed that FB is not always representative of ToM. Finally, there was no moderating effect of age on the syntax‐ToM or EF‐ToM relations, thus suggestive of the Reasoning account rather than the Emergence account.     

Sampling Strategies for Evaluating the Rate of Adventitious Transgene Presence in Non‐Genetically Modified Crop Fields

According to E.U. regulations, the maximum allowable rate of adventitious transgene presence in non‐genetically modified (GM) crops is 0.9%. We compared four sampling methods for the detection of transgenic material in agricultural non‐GM maize fields: random sampling, stratified sampling, random sampling + ratio reweighting, random sampling + regression reweighting. Random sampling involves simply sampling maize grains from different locations selected at random from the field concerned. The stratified and reweighting sampling methods make use of an auxiliary variable corresponding to the output of a gene‐flow model (a zero‐inflated Poisson model) simulating cross‐pollination as a function of wind speed, wind direction, and distance to the closest GM maize field. With the stratified sampling method, an auxiliary variable is used to define several strata with contrasting transgene presence rates, and grains are then sampled at random from each stratum. With the two methods involving reweighting, grains are first sampled at random from various locations within the field, and the observations are then reweighted according to the auxiliary variable. Data collected from three maize fields were used to compare the four sampling methods, and the results were used to determine the extent to which transgene presence rate estimation was improved by the use of stratified and reweighting sampling methods. We found that transgene rate estimates were more accurate and that substantially smaller samples could be used with sampling strategies based on an auxiliary variable derived from a gene‐flow model.     

Geographic location or experience: Using PRISM to understand how people seek flood risk information

Flooding is increasing worldwide, and with climate change, people need help understanding these changing conditions and that their flood risk may also change. This study extends the planned risk information seeking model (PRISM) into the flood risk domain and examines the antecedents that explain flood risk information seeking behavior. Using a survey reflective of the population in the state of Texas (N = 1079), this study includes an operationalization of risk perception specific to the complexity of floods and explores two key moderators in the PRISM model. Findings suggest that using PRISM to elaborate flood risk information seeking behaviors explains 48% of the variance in information seeking intent and 37% of the variance in affective risk perception. Using multigroup modeling, the findings also reveal that simply living in an area at high risk for floods does not significantly impact any relationships in the model. However, having experience with flooding increases the strength of risk perception paths—in particular, perceived probability of flood risk—and better explains flood risk information seeking. Suggestions for how to use communication to influence risk perceptions and information seeking, as well as future directions for research, are also discussed.     

The two-party system under alternative voting procedures

Countries that elect their policy-makers by means of Plurality Voting tend to have a two-party system. This observation can be explained by the strategic behavior of voters. This article derives two broad classes of voting procedures under which strategic voting behavior induces a two-party system under standard assumptions on voter preferences. One class consists of the voting procedures with unique top-score, i.e., under which a voter can cast a top-score vote for only one candidate (e.g., Plurality Voting, Borda Count). The other class consists of the voting procedures that permit truncated ballots, i.e., under which voters do not have to cast all their votes (e.g., Approval Voting). This analysis suggests that the key for strategic voting behavior to induce a two-party system is that voters can always cast a different score for the two candidates they rank first and second on their ballots.     

French astronomy during the Belle Époque. The professionalization of a scientific activity

The article describes the way French astronomy developed during the Belle Époque (ca. 1880–1914). It identifies and accounts for the particulars of a scientific occupation, which until today has been misrepresented in the history of science. We show how the practice of astronomy was rigidly rationalized and integrated into a scientific-bureaucratic regime. Established in state observatories (e.g. the Paris Observatory), astronomy was defined as a professional activity practiced by a group of “workers” of the sky. Analysis enables us to shed some light on how the cognitive content of astronomy as a discipline, the institutional framework constituted by the state observatories, and the group of professional astronomers all interacted and were in fact co-constructed.     

Materializing Strategy in Mundane Tools: the Key to Coupling Global Strategy and Local Strategy Practice?

While much of the literature on strategy and strategy as practice (SaP) focuses on traditional strategic tools, technologies and discursive practices of managers, this paper extends the understanding of strategic change implementation by proposing that mundane material tools, understood as text, translate global strategic discourse in ways that make sense to workers and orchestrate successful global strategy implementation at the local level. Based on a rich case study within one branch of a national bank, this paper demonstrates how a middle manager's materializing practices developed local strategy practice while simultaneously transforming work and producing strategic figures or indicators that satisfied senior management's global strategic change objectives. The contributions of this paper are threefold: (i) it advances the understanding of the multimodality of materiality by identifying the influence of three types of mundane tools produced locally by a middle manager as he performed his sense of the senior managers’ strategic discourse; (ii) it reveals how these three types of physical texts materialized the manager's sense of this discourse, facilitating frontline workers’ engagement and coupling materiality and orality in a coherent way that allowed workers to embody the company's global strategy in their ‘sayings and doings’; and (iii) it highlights the importance of managers’ ability to materialize a strategic discourse.     

Does employment uncertainty particularly impact fertility of children of North African immigrants in France? A gender perspective

This paper investigates whether unemployment and insecure employment lead to delaying first childbearing in France, and whether these impacts are likely to differ between children of immigrants from North Africa and natives across genders. Data come from pooling two cohorts of French school-leavers followed over 7–10 years. Findings show that women of North African descent have a first child later than native women, whereas results for men are not significantly ethnic origin-differentiated. Unemployment and non-permanent employment are related to postponement of fertility for both men and women. Current unemployment affects the children of immigrants from North Africa more than their counterparts with no direct migration background. Persistent unemployment does not have any significant effect on childbearing for the women of North African immigrant descent, while it strongly reduces that of the men. While employment uncertainty thus tends to delay first parenthood, its impact seems to occur more through the timing of couple formation than through the timing of conception among children of immigrants from North Africa.     

The long-run labour market consequences of teenage motherhood in Britain

Common wisdom states that teenage childbearing reduces schooling, labour market experience and adult wages. However, the decisions to be a teenage mother, to quit school, and be less attached to the labour market might all stem from some personal or family characteristics.  Using the National Child Development Study (NCDS), we find that in Britain teenage childbearing decreases the probability of post-16 schooling by 12–24%. Employment experience is reduced by up to three years, and the adult pay differential ranges from 5% to 22%. The negative impact of teen motherhood on various adult outcomes is not only due to some pre-motherhood characteristics; hence policies aiming to encourage return to school and participation in the labour market may be an efficient way to reduce the long-term consequences of teenage pregnancy. Received: 10 October 2000/Accepted: 3 April 2002 All correspondence to Arnaud Chevalier. We are indebted to Martyn Andrews, Colm Harmon, Gauthier Lanot, Ian Walker and to the participants at the EEEG annual meeting (Southampton, 2000) and seminars at Keele University, LSE and Warwick University for their comments that greatly improved earlier versions of this paper. We also thank two anonymous referees and Christoph Schmidt for their insightful comments. All remaining errors are ours. The data was supplied by the Economic and Research Council's Data Archive at the University of Essex and are used with permission of the Controller of Her Majesty's Stationery Office. Responsible editor: Christoph M. Schmidt.