Search results for "GEM"
showing 10 items of 19240 documents
Flexible work arrangements and household-related journeys. Who takes the lead in dual-earner heterosexual couples?
2022
International audience; This research provides an exploration of the relationship between flexible work arrangements (FWA), CO2 emissions, and household travel allocation among dual-earner couples. Using data from the United Kingdom National Travel Survey for the period between 2002 and 2017, we develop a path analysis approach based on SEM that allows for a comprehensive study of travel behavior and trade-off effects. Results suggest that, although the partner who benefits from FWAs tends to carry out domestic provision and maintenance activities, the allocation of tasks within the household is still asymmetrical. Results also outline that the presence of children will intensely affect the…
Performance of a sustainable asphalt mix incorporating high RAP content and novel bio-derived binder
2019
The recent drive to find ways to increase sustainability and decrease costs in asphalt paving has led researchers to find innovative ways to incorporate more recycled materials and bio-derived binders into mixes with varying success. A new novel bio-derived binder made from refined pine chemistry stabilised with a polymer can increase the sustainability of asphalt mixes while maintaining pavement performance. Laboratory performance testing was conducted on asphalt mixes containing 50% Reclaimed Asphalt Pavement (RAP) by mix weight and the novel bio-derived binder. Results show that the bio-derived binder outperforms the conventional 50/70 pen grade binder mixes with respect to resistance to…
Intrinsic adhesive and cohesive assessment of the moisture sensitivity of bio-rejuvenated recycled asphalt binders
2019
Alternative binders not derived from fossil fuels, known as biobinders, are opening new paths for multiple applications in road infrastructure. Biobinders, usually produced from bio-oils obtained from the processing of biomass and industry by-products, are tuneable materials whose properties can be adjusted to meet specific targets. For this reason, an interesting approach is to couple biobinders with Reclaimed Asphalt (RA) by taking advantage of their rejuvenating properties to design bio-asphalt mixtures with high-content RA and no additional virgin bitumen. Recent research has proven the feasibility of this approach through validation at full-scale (BioRePavation project). However certai…
Investigating Mobility Gaps in University Campuses
2018
The objective of the present research is to carry out a gap analysis between current mobility situations and the needs, future plans and priorities regarding a number of thematic areas on the issue of mobility in university campuses. For this purpose, an interview was conducted involving 36 experts from seven Southern European Universities. More specifically, experts from each university were asked to analyse and rate both the current and the desired situation in the campus under their responsibility with focus on the following thematic areas: parking management, soft modes infrastructure, public transport, car related issues, road infrastructure, environment and energy, mobility management…
Consistency Between the Subjective Perception of Feeling Indisposed, the Decision to Drive and Driving Performance
2016
Drivers' health and fitness are essential issues in order to predict traffic crashes, taking into account that these characteristics are essential to perform this task correctly and safety. The purpose of this research was to analyze the frequency in which drivers who feel physically or emotionally unable to drive decide to perform this task, or not, under states of indisposition, as well as the perception of the effect that this indisposition had on driving. This cross-sectional study used a total sample of n=1200 (666 [56%] men and 534 [44%] women) Spanish drivers, who answered a questionnaire designed to collect data about their psychosocial characteristics, driving habits and perception…
Using UAV Based 3D Modelling to Provide Smart Monitoring of Road Pavement Conditions
2020
Road pavements need adequate maintenance to ensure that their conditions are kept in a good state throughout their lifespans. For this to be possible, authorities need efficient and effective databases in place, which have up to date and relevant road condition information. However, obtaining this information can be very difficult and costly and for smart city applications, it is vital. Currently, many authorities make maintenance decisions by assuming road conditions, which leads to poor maintenance plans and strategies. This study explores a pathway to obtain key information on a roadway utilizing drone imagery to replicate the roadway as a 3D model. The study validates this by using stru…
Perdre ou renoncer aux étoiles : analyse des discours médiatiques et paroles de chefs à l’ère de la transparence
2020
Dans le cadre de cette contribution, la perte ou le renoncement aux etoiles du Guide Michelin de 19 chefs sont etudies a partir d’un corpus mediatique issu de la presse nationale ou de la presse regionale entre 1996 et 2019. L’analyse des discours tend a souligner les tensions qui traversent la restauration gastronomique et interroge egalement les modalites d’evaluation et de communication. Ce travail permet plus largement d’interroger la place et la nature de la critique gastronomique dans une ere de la transparence.
Études scientifiques et marché du travail : éléments de réflexion sur la crise des formations en sciences
2007
Student disaffection towards sciences, most evident in pure science undergraduates, is causing increasing concern for the future of scientific training in France. If access to employment deteriorates more for science graduates than for graduates in other disciplines, science graduates will have a distinct advantage in terms of earnings and employment status, when the economic situation becomes less favourable. Within sciences, graduates of pure sciences have a more difficult transition from education to employment than those from applied sciences. Yet graduates from both disciplines compete for the same job in the private sector with pure science graduates receiving lower wages. The “crisis…
People who run African affairs: staffing and recruitment in the African Union Commission
2020
AbstractThis study contributes to the field of International Public Administration (IPA) and the emerging area of Informal International Relations (IIR) by examining the politics of staffing and recruitment of the African Union Commission (AUC). Although the AUC has become a major political player in international affairs, there is a dearth of knowledge about the civil servants who work for the AUC and who run this paramount pan-African executive body. To address the void, this paper draws on a survey of 137 AUC staff, archival studies and interviews to explore recruitment of AUC staff. Combining organisational theory and informality as analytical lenses, the study demonstrates that, first,…
Wpływ Brexitu na współpracę sądową w sprawach karnych w Unii Europejskiej
2020
Wystąpienie Zjednoczonego Królestwa z Unii Europejskiej stanowi jedno z głównych wyzwań dla dalszego funkcjonowania europejskiego obszaru wymiaru sprawiedliwości w sprawach karnych. W niniejszym artykule szczególna uwaga zostanie zwrócona na wybrane aspekty zapewnienia dalszej współpracy sądowej w sprawach karnych po Brexicie. Dotyczy to przede wszystkim możliwości dalszego udziału Zjednoczonego Królestwa w specyficznych organach wspomagających obrót prawny w ramach tej współpracy (tj. w ramach Eurojustu i Europolu) oraz stosowania instrumentów prawnych urzeczywistniających zasadę wzajemnego uznawania orzeczeń, ze szczególnym uwzględnieniem sztandarowego instrumentu prawnego, tj. europejski…