Fibre Lasers for Gamma Colliders

The required lasers parameters for recently proposed gamma collider Higgs factories are presented and reviewed in the context of new developments in high average and peak power fibre laser technology. A possible laser architecture based on fibres is proposed and some issues surrounding high average power frequency conversion to the wavelengths required for a gamma collider are discussed

Dollar-Off or Percent-Off? Discount Framing, Construal Levels, and Advertising Appeals

In two studies, the authors reveal how consumers react to marketing messages when two commonly used promotional tactics – price discounts and advertising messages – are synergized. Building on construal level theory, Study 1 shows how dollar-off discount framings (“Buy 2, get $10 off”) trigger low-level construal, while percent-off discount framings (“Buy 2, Get 50% off”) activate high-level construal. Study 2 demonstrates that congruent levels are matched when dollar-off discount appeals are paired with attribute appeals and when percent-off appeals are paired with benefit appeals, leading to more effective marketing communications

A preliminary characterization of the tensile and fatigue behavior of tungsten-fiber/Waspaloy-matrix composite

A microstructural study and a preliminary characterization of the room temperature tensile and fatigue behavior of a continuous, tungsten fiber, Waspaloy-matrix composite was conducted. A heat treatment was chosen that would allow visibility of planar slip if it occurred during deformation, but would not allow growth of the reaction zone. Tensile and fatigue tests showed that the failed specimens contained transverse cracks in the fibers. The cracks that occurred in the tensile specimen were observed at the fracture surface and up to approximately 4.0 mm below the fracture surface. The crack spacing remained constant along the entire length of the cracked fibers. Conversely, the cracks that occurred in the fatigue specimen were only observed in the vicinity of the fracture surface. In instances where two fiber cracks occurred in the same plane, the matrix often necked between the two cracked fibers. Large groups of slip bands were generated in the matrix near the fiber cracks. Slip bands in the matrix of the tensile specimen were also observed in areas where there were no fiber cracks, at distances greater than 4 mm from the fracture surface. This suggests that the matrix plastically flows before fiber cracking occurs

Accelerating innovation development and scaling processes for agricultural transformation

At the 5th Global Science Conference on Climate-Smart Agriculture in Bali, CCAFS, IFAD and USDA-FAS organized the Side event “Accelerating innovation development and scaling climate-smart agriculture to drive a transformation in food systems”. High-level representatives of > 20 governments, research, donor, financial and policy institutions, civil society and private sectors discussed their previously shared insights and agreed to act as an “Insight Group” for further related CCAFS research and action. This Info Note summarizes the groups’ first findings, along with a short proposal for next steps

Close to Home / Made in the UK

The first meeting of the All Party Parliamentary Group on Ethics and Sustainability in Fashion, convened by Baroness Lola Young. The meeting explored the contribution that forward thinking UK fashion and textile businesses make to local economies, communities and the environment. Baroness Lola Young, Dr Frances Corner OBE (Head of the London College of Fashion) and Martin Buttle (Supply Chain Manager at MADE-BY) started the meeting with opening remarks and introductions. Dr Kate Fletcher (Reader at the Centre for Sustainable Fashion) expanded on the Close to Home/Made in the UK theme. Five shirt presentations followed from UK manufacturers/brands involved in fashion, textiles and footwear: Christopher Raeburn, Dashing Tweeds, Tender Denim, Ardalanish Isle of Mull Weavers and John Smedley. Ruth Potts (New Economics Foundation) then talked about sustaining local economies and economic well-being. A discussion followed with questions and commentary from the audience, who represented a wide cross section of the industry including high street retailers, press, fashion designers and international organisations. Through the sharing of experiences, personal journeys, discoveries, traditions, technologies and crafts, many of the joys, pains, challenges and opportunities for UK fashion manufacturing where explored. A momentum to keep building. A feeling of positivity and urgency. A debate to be continued. Actions for now and the future we create. There was also a Local Wisdom project underway, to record and celebrate the clothes we wear and the ways in which we wear them. Participants shared the story of their clothing and had their portraits taken wearing it in the Westminster Great Hall