We investigated the dissociation of dications and trications of three polycyclic aromatic hydrocarbons (PAHs), fluorene, phenanthrene, and pyrene. PAHs are a family of molecules ubiquitous in space and involved in much of the chemistry of the interstellar medium. In our experiments, ions are formed by interaction with 30.3 nm extreme ultraviolet (XUV) photons, and their velocity map images are rec

Extreme-ultraviolet pulses can propagate through ionised solid-density targets, unlike optical pulses and, thus, have the potential to probe the interior of such plasmas on sub-femtosecond timescales. We present a synthetic diagnostic method for solid-density laser-generated plasmas based on the dispersion of an extreme-ultraviolet attosecond probe pulse, in a pump–probe scheme. We demonstrate the

Deprived neighborhoods in Sweden in which criminal networks have a negative impact on local residents are labeled as “vulnerable neighborhoods” by the police. The method used by the police to classify such neighborhoods is largely based on perceptions, which raises issues of subjectivity and potential biases. The present study explores the characteristics of such neighborhoods based on registry da

Under de senaste 150 åren har det svenska landskapet genomgått mycket stora förändringar. Det har lett till förlust av livsmiljöer för många arter och har haft långtgående konsekvenser för vår inhemska fauna och flora. Många arter har minskat dramatiskt och i vissa fall helt försvunnit.När en art väl har börjat minska finns det många faktorer som kan förstärka den negativa trenden. En individrik p

Current local or regional flood risk assessments, as required by the EU flood risk directive, rarely account for cascading effects due to interdependencies between critical infrastructures. However, it is essential to consider these effects, as they may severely impact areas outside the immediate flood risk area. The main purpose is to present and problematize a method (AB-CEM) for mapping and ana

A popular strategy for activating the urban population physically is to provide informal outdoor sport and recreational spaces. However, building an infrastructure does not assure physical activity among the wider population. For instance, girls tend to be underrepresented at public sport places. To create more equal physical activity opportunities in public space, we need to uncover and interpret

Coronavirus disease 2019 (COVID-19) pandemic control measures rely on the accurate and timely diagnosis of infected individuals. Real-time polymerase chain reaction (qPCR) remains the gold-standard method for laboratory diagnosis of the disease. Delayed diagnosis due to challenges that face laboratories performing COVID-19 testing can hinder public health control measures. Such challenges may be r

Kapitlet behandlar medskapandets process i stadsutveckling. Bidraget beskriver utifrån olika aktörers perspektiv - tjänstepersoner, chefer och politiker - hur medskapandeprocesser inte bara handlar om relationen till invånarna, utan mellan olika aktörer inom en kommun. Kapitlet argumenterar för att medskapande inte endast kan handla om vilka tekniker som används för att skapa relationer med invåna

In this paper, we criticize attempts to present narrow perspectives on innovation policy as reflecting the use of the concept innovation system as policy framing. While it is correct that innovation policy, at least until recently, has given priority to economic growth and low priority to global challenges such as climate change and income inequality this is in no way immanent in the innovation sy

Minnesplaneringsmetoder är en digital metodlåda med texter, motsvarande en metodbok. Metodlådan beskriver hur man kan samla in människors minnen och berättelser för att skapa underlag som sedan kan användas för olika typer av stadsutveckling. Metodlådan vänder sig till många olika yrkesgrupper, men även till privatpersoner.

Heavy metal (HM) accumulation in soil and plants can occur when water contaminated with HMs is used as a source of irrigation (El-Salam Canal, Egypt). In this study, the effect of watering potato crop in sandy soil from a polluted water source under flood irrigation (FI), sprinkler irrigation (SI), and surface drip irrigation (DI) on the transport of the HMs copper (Cu), manganese (Mn), lead (Pb),