Search results

We derive short-distance constraints for the hadronic light-by-light contribution (HLbL) to the anomalous magnetic moment of the muon in the kinematic region where the three virtual momenta are all large. We include the external soft photon via an external field leading to a well-defined Operator Product Expansion. We establish that the perturbative quark loop gives the leading contribution in a w

Sverige och världen står inför stora samhällsutmaningar, inte minst inom energi- och klimatområdet. För att möta dessa utmaningar och nå målsättningarna i Parisavtalet och Agenda 2030 krävs genomgripande förändringar av dagens samhälle – en utveckling som fordrar transformativa, kunskapsbaserade och samordnade processer för omställning. Rätt utformade och i effektiva kombinationer förväntas forskn

We detail here the convergence properties of a new model-independent imaging method, the Lévy expansion, that seems to play an important role in the analysis of the differential cross section of elastic hadron-hadron scattering. We demonstrate, how our earlier results concerning the Odderon effects in the differential cross-section of elastic proton-proton and proton-antiproton scattering as well

Understanding land use and land cover (LULC) change through time is an important aspect when attempting to interpret human-environment interactions through time. Palaeoenvironmental techniques have been crucial in bridging this gap by providing information that has been used to estimate climate change, vegetation change, sea level change etc. through time using a variety of proxies. Producing quan

A multi-port element approach, engineered to address practical design challenges of very high frequency (VHF) phased array radar systems, is presented in this communication. A cornerstone of the antenna element design is its simplicity, which counteracts the mobility issues of physically large and unavoidably bulky ground-based VHF radar systems. The multi-port element introduces a third dimension

I svensk förvaltningsrätt tar diskussioner om utrymmet för överprövning av förvaltningens beslut ofta sin utgångspunkt i begreppsparet laglighet och lämplighet. Därutöver förekommer, mer sällan, argument som relaterar till ogiltighet eller nullitet. Med detta avses förvaltningsbeslut som är grovt och uppenbart felaktiga.Syftet med artikeln är att utreda innebörden av ogiltighet och nullitet i sven

PURPOSE: Analyze the goals for treatment and attained goals for spinal orthoses in children with cerebral palsy (CP), and describe the use of spinal orthoses in relation to age, sex, gross motor function, and scoliosis. METHODS: Cross-sectional data for all children born between 2000 and 2014 and registered in the Swedish CP registry were analyzed in relation to age, sex, Gross Motor Function Clas

This study examines the geopolitical role of 14 metals and metalloids needed for renewable energy technologies. The analysis focuses on three factors with potential geopolitical importance: the geographic concentration of resources, potential revenues of resources rich countries and the size of total global markets. The geographic concentration of most of the fourteen studied metals and metalloids

På senare tid har allt fler aktörer engagerat sig för att ”hjälpa bina” och motverka bidöd. Men när köpcentrum, snabbmatskedjor och fastighetsbolag satsar på bikupor för honungsbin i stället för att hjälpa vilda bin riskerar man att göra mer skada än nytta, skriver fyra Lundaforskare, som uppmanar företagen att hjälpa till på rätt sätt.

Proteins differentially interact with each other across cellular states and conditions, but an efficient proteome-wide strategy to monitor them is lacking. We report the application of thermal proximity coaggregation (TPCA) for high-throughput intracellular monitoring of protein complex dynamics. Significant TPCA signatures observed among well-validated protein-protein interactions correlate posit

The cohesin ring, which is composed of the Smc1, Smc3, and Scc1 subunits, topologically embraces two sister chromatids from S phase until anaphase to ensure their precise segregation to the daughter cells. The opening of the ring is required for its loading on the chromosomes and unloading by the action of Wpl1 protein. Both loading and unloading are dependent on ATP hydrolysis by the Smc1 and Smc

A key task in the ESMERALDA project dealt with identifying appropriate case studies to test the ‘flexible methodology’ in its different stages of development. Case studies consist of working examples in which mapping and assessment of ecosystem services were applied to address specific decision-making problems. Testing is understood as an iterative process of co-learning that involves project part

We demonstrate a velocimetric technique based on femtosecond laser-induced cyano (CN) chemiluminescence (FLICC). High intensity emission originated from CN(B-X) fluorescence was observed in filaments generated by focusing a femtosecond laser in methane-seeded nitrogen gas flows. The emission is strong and can last for hundreds of microseconds with a proper methane concentration. FLICC was adopted