E-β-Ocimene, a Volatile Brood Pheromone Involved in Social Regulation in the Honey Bee Colony (Apis mellifera)

Background: In honey bee colony, the brood is able to manipulate and chemically control the workers in order to sustain their own development. A brood ester pheromone produced primarily by old larvae (4 and 5 days old larvae) was first identified as acting as a contact pheromone with specific effects on nurses in the colony. More recently a new volatile brood pheromone has been identified: E-β-ocimene, which partially inhibits ovary development in workers. [br/] Methodology and Principal Finding: Our analysis of E-β-ocimene production revealed that young brood (newly hatched to 3 days old) produce the highest quantity of E-b-ocimene relative to their body weight. By testing the potential action of this molecule as a non-specific larval signal, due to its high volatility in the colony, we demonstrated that in the presence of E-β-ocimene nest workers start to forage earlier in life, as seen in the presence of real brood. [br/] Conclusions/Significance: In this way, young larvae are able to assign precedence to the task of foraging by workers in order to increase food stores for their own development. Thus, in the complexity of honey bee chemical communication, E-β- ocimene, a pheromone of young larvae, provides the brood with the means to express their nutritional needs to the workers

Social housing retrofit strategies in England and France: A parametric and behavioural analysis

© 2015 Elsevier Ltd. All rights reserved.IFORE (Innovation for Renewal) is an EU Interreg funded partnership including two large housing associations, one in England, one in France, and a university from each country. The project is an exemplar large-scale retrofit, 100 houses have been retrofitted at Rushenden, on the Isle of Sheppey (Kent, England), and a similar number at Outreau, a suburb of Boulogne (Pas-de-Calais, France). This paper offers an overview of the methods used by the project team to find common solutions and to identify similarities between retrofit measures and occupant's behaviour in both countries. The cross-border nature of IFORE makes the project also original in relation to other similar national retrofit projects that have been developed prior to it. Dynamic thermal simulation was used to evaluate the thermal behaviour of the buildings refurbished. It is a valuable decision-making tool when assessing alternative retrofit measures. Initial surveys were carried out to make a classification of the housing stock which formed the context for the computer simulations. Some results from the simulations, carried out with ESP-r in England and Pleiade + Comfie in France, are presented in this paper. The comparison of the results from the two simulation tools shows great similarity between the two methods, which gave confidence for their use in evaluating alternative specifications for the works that have now been adopted for retrofit. At the same time sociological studies have characterised the populations in order to bring the most advantageous results from the retrofit works in reducing carbon emissions but also reducing fuel poverty whilst improving comfort standards

Social housing retrofit strategies in England and France: A parametric and behavioural analysis

© 2015 Elsevier Ltd. All rights reserved.IFORE (Innovation for Renewal) is an EU Interreg funded partnership including two large housing associations, one in England, one in France, and a university from each country. The project is an exemplar large-scale retrofit, 100 houses have been retrofitted at Rushenden, on the Isle of Sheppey (Kent, England), and a similar number at Outreau, a suburb of Boulogne (Pas-de-Calais, France). This paper offers an overview of the methods used by the project team to find common solutions and to identify similarities between retrofit measures and occupant's behaviour in both countries. The cross-border nature of IFORE makes the project also original in relation to other similar national retrofit projects that have been developed prior to it. Dynamic thermal simulation was used to evaluate the thermal behaviour of the buildings refurbished. It is a valuable decision-making tool when assessing alternative retrofit measures. Initial surveys were carried out to make a classification of the housing stock which formed the context for the computer simulations. Some results from the simulations, carried out with ESP-r in England and Pleiade + Comfie in France, are presented in this paper. The comparison of the results from the two simulation tools shows great similarity between the two methods, which gave confidence for their use in evaluating alternative specifications for the works that have now been adopted for retrofit. At the same time sociological studies have characterised the populations in order to bring the most advantageous results from the retrofit works in reducing carbon emissions but also reducing fuel poverty whilst improving comfort standards

Modulation de l’association positive entre consommation de viande rouge et risque de cancer par l’anxiété générale dans la cohorte NutriNet-Santé

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The lacertus fibrosus of the biceps brachii muscle: an anatomical study.

The lacertus fibrosus (LF) is involved in various surgical procedures. However, the anatomy, morphometry, topography and biomechanical involvements of LF are not clear. The purpose of this study was to determine the anatomical and morphometric variations of LF, and to correlate this with anthropometric and morphometric measurements of the upper limb. Furthermore, the presence or absence of a deep layer of LF was verified using forearm cross-sections and dissections.JOURNAL ARTICLESCOPUS: ar.jinfo:eu-repo/semantics/publishe