“You Heard Me Swear but You Never Heard Me!” negotiating Agency in the pupil referral unit classroom

This study explores the exercise of student agency in an alternative educational setting in England by considering students’ verbal interactions during an art lesson in which they created masks and during an engineering lesson in which they developed model rockets. We build on pre-existing operationalisations of student agency by drawing attention to some of the more particular linguistic features that characterise the exercise of agency in immediate classroom situations. Our findings demonstrate that the participating students were responding to, renegotiating, or resisting their teacher’s agendas in subtle ways, depending on the contingencies of the moment.     

The development of gaze following in monolingual and bilingual infants: A multi-laboratory study

Determining the meanings of words requires language learners to attend to what other people say. However, it behooves a young language learner to simultaneously encode relevant non-verbal cues, for example, by following the direction of their eye gaze. Sensitivity to cues such as eye gaze might be particularly important for bilingual infants, as they encounter less consistency between words and objects than monolingual infants, and do not always have access to the same word-learning heuristics (e.g., mutual exclusivity). In a preregistered study, we tested the hypothesis that bilingual experience would lead to a more pronounced ability to follow another's gaze. We used a gaze-following paradigm developed by Senju and Csibra (Current Biology, 18, 2008, 668) to test a total of 93 6- to 9-month-old and 229 12- to 15-month-old monolingual and bilingual infants, in 11 laboratories located in 8 countries. Monolingual and bilingual infants showed similar gaze-following abilities, and both groups showed age-related improvements in speed, accuracy, frequency, and duration of fixations to congruent objects. Unexpectedly, bilinguals tended to make more frequent fixations to on-screen objects, whether or not they were cued by the actor. These results suggest that gaze sensitivity is a fundamental aspect of development that is robust to variation in language exposure.     

Longitudinal associations between submissive/nonassertive social behavior and different types of peer victimization

Previous research, primarily in North America, has found that submissive and nonassertive behaviors are associated with peer victimization during childhood. A limitation of this work has been the failure to examine the relationships between such behaviors and different types of peer victimization. To overcome this weakness, we developed an inventory to assess the bidirectional longitudinal associations between three different types of victimization and submissive/nonassertive social behavior. The inventory was completed by 449 children aged 9 to 11 years at two time points over the course of an academic year. The inventory generated self-report scores and peer nominations. A robust finding was that submissive/nonassertive social behavior predicted an increase in social exclusion only. In examining the other direction of the relationship, we found that only social exclusion predicted changes in submissive/nonassertive social behavior over time. The findings advance our understanding of the social skills deficits that put children at risk for peer victimization, and of the implications of victimization for the development of submissive/nonassertive social skills problems.     

THE CHARITY OF THE EXTREMELY WEALTHY

In this article, we show that, compared to billionaires who have inherited their wealth, billionaires who have made their own wealth are more likely to sign the Giving Pledge and more likely to be in the Million Dollar Gifts list or the Philanthropy Top 50 list of big givers. If they give, self‐made billionaires also tend to donate more money. We explore several possible explanations for this correlation between the origin of billionaires' wealth and their charitable giving, and present evidence that suggests that self‐made billionaires tend to spend more money, both by giving money away and by buying expensive items. (JEL D03, H40)     

Advantages of a wholly Bayesian approach to assessing efficacy in early drug development: a case study

This paper illustrates how the design and statistical analysis of the primary endpoint of a proof‐of‐concept study can be formulated within a Bayesian framework and is motivated by and illustrated with a Pfizer case study in chronic kidney disease. It is shown how decision criteria for success can be formulated, and how the study design can be assessed in relation to these, both using the traditional approach of probability of success conditional on the true treatment difference and also using Bayesian assurance and pre‐posterior probabilities. The case study illustrates how an informative prior on placebo response can have a dramatic effect in reducing sample size, saving time and resource, and we argue that in some cases, it can be considered unethical not to include relevant literature data in this way. Copyright © 2015 John Wiley & Sons, Ltd.     

Improving Risk Assessment Calculations for Traditional Foods Through Collaborative Research with First Nations Communities

As industrial development is increasing near northern Canadian communities, human health risk assessments (HHRA) are conducted to assess the predicted magnitude of impacts of chemical emissions on human health. One exposure pathway assessed for First Nations communities is the consumption of traditional plants, such as muskeg tea (Labrador tea) (Ledum/Rhododendron groenlandicum) and mint (Mentha arvensis). These plants are used to make tea and are not typically consumed in their raw form. Traditional practices were used to harvest muskeg tea leaves and mint leaves by two First Nations communities in northern Alberta, Canada. Under the direction of community elders, community youth collected and dried plants to make tea. Soil, plant, and tea decoction samples were analyzed for inorganic elements using inductively coupled plasma‐mass spectrometry. Concentrations of inorganic elements in the tea decoctions were orders of magnitude lower than in the vegetation (e.g., manganese 0.107 mg/L in tea, 753 mg/kg in leaves). For barium, the practice of assessing ingestion of raw vegetation would have resulted in a hazard quotient (HQ) greater than the benchmark of 0.2. Using measured tea concentrations it was determined that exposure would result in risk estimates orders of magnitude below the HQ benchmark of 0.2 (HQ = 0.0049 and 0.017 for muskeg and mint tea, respectively). An HHRA calculating exposure to tea vegetation through direct ingestion of the leaves may overestimate risk. The results emphasize that food preparation methods must be considered when conducting an HHRA. This study illustrates how collaboration between Western scientists and First Nations communities can add greater clarity to risk assessments.     

Women's perceptions of the effects of menopause and hormone replacement therapy on skin

Although women frequently associate skin issues with menopause and hormone replacement therapy (HRT), little work has been done to investigate a possible relationship. A questionnaire was given to women attending a specialist menopause clinic; 87 women responded. Skin problems generally were common, with over 64% of respondents reporting past problems. Around half felt that the menopause had resulted in skin changes; dry skin was the predominant complaint at this stage. However, use of HRT in the short term did not result in any conclusive trends in skin condition in the majority of users.     

Transition pathways towards a robust ecologization of agriculture and the need for system redesign. Cases from organic farming and IPM

The growing criticism of intensive agricultural practices that lead to a deterioration of natural resources and a decrease of biodiversity has progressively led to more environmental constraints being put on agricultural activities through an “ecologization” of agricultural policies. The aims of these policies have been to protect environmentally sensitive areas, to improve groundwater quality and, more recently, to develop organic farming and/or reduce pesticide use. However, these efforts are still a far cry from a robust ecologization of agricultural practices. In order to identify the conditions for the implementation of such an ecologization, the changes in practices from conventional agriculture towards organic farming and integrated pest management (IPM) are investigated using a sociological study of farmers’ trajectories, coupled with the ESR (Efficiency-Substitution-Redesign) framework developed by biological and agricultural scientists. This combined approach reveals that a robust ecologization of agricultural practices requires us to take into account the specific and variable tempo of farmers’ trajectories and to redesign not only technical agricultural systems but also interactions within larger agrifood systems.