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Resonance scattering techniques are very useful for high-resolution atomic spectroscopy. The applicability of these techniques has been much extended, particularly through the rapid development of tunable-laser technology. The use of a narrowband tunable laser, acting on a collimated atomic beam, gives a direct method enabling, for example, hyperfine structure and isotope shift studies. The intens

In aqueous surfactant and lipid systems, different liquid crystalline phases are formed at different temperatures and water contents. The "natural" phase sequence implies that phases with higher curvature are formed at higher water contents. On the other hand, there are exceptions to this rule, such as the monoolein/water system. In this system an anomalous transition from lamellar to reverse cubi

The purpose of the present study is to introduce a point process model for characterizing the pattern of atrial fibrillation (AF) episodes. A variant of the bivariate Hawkes process is proposed, accounting for clustered episodes. The model parameters are inferred by the maximum likelihood method. The goodness-of-fit analysis show that model fits the data in most of the recordings (27 out of 32). T

This study examined an econometric analysis of the macroeconomic determinants of carbon dioxide (CO2) emission in Nigeria, covering the periods between 1981 and 2016, employing both linear and non-linear Autoregressive Distributed Lag (ARDL & NARDL) models. The time series data used were sourced from the database of the World Bank Development Indicators, 2016 and Central Bank of Nigeria Statis

The SP6 κ-promoter pentadecamer (pd) element was found to be unable to stimulate transcription when present in one copy as the only promoter element in a minimal promoter but showed weak stimulatory activity when present as a multimer (four copies). One copy of the pd element acted synergistically with an octamer element, but not with a SP1 site, to stimulate transcription. The effect was orientat

By 2050, electric vehicles (EVs) are expected to be 40% of all cars on the road1. In some countries like Norway, more than 90% of the new cars sold are electric2. This rise in EVs presents challenges to the current electricity infrastructure to meet this rapid increase in electricity demand. In this study, we simulate urban residential electricity demand using an agent-based model to investigate t

This study explores structural modifications for reducing train-induced vibrations in timber buildings by modifying the building layout. A parameter study was conducted using a semi-analytical ground model coupled with a finite element structural model. The train load was modeled as a stationary oscillating point load of unit magnitude, applied on the ground surface. The analyzed frequency range,

Som en reaktion på Rysslands fullskaliga invasion av Ukraina har EU och allierade G7-länder infört omfattande sanktioner riktade mot rysk olja och petroleumprodukter. För att kringgå dessa sanktioner har Ryssland i allt större utsträckning förlitat sig på en parallell flotta – en så kallad skuggflotta – som har kommit att spela en betydande roll i finansieringen av den ryska krigföringen. SkuggfloIn response to Russia’s full-scale invasion of Ukraine, EU and allied G7 countries implemented extensive sanctions regimes targeting Russian oil and petroleum products. To circumvent these sanctions, Russia has increasingly relied on a parallel fleet operating without Western ties – a shadow fleet – which has come to play an important role in funding the Russian war effort. Shadow fleet vessels em