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The NA62 experiment at CERN reports searches for K+→μ+N and K+→μ+νX decays, where N and X are massive invisible particles, using the 2016–2018 data set. The N particle is assumed to be a heavy neutral lepton, and the results are expressed as upper limits of O(10−8) of the neutrino mixing parameter |Uμ4|2 for N masses in the range 200–384 MeV/c2 and lifetime exceeding 50 ns. The X particle is consi
This paper presents the findings of the workshop “New approaches to evacuation modelling”, which took place on the 11th of June 2017 in Lund (Sweden)within the Symposium of the International Association for Fire Safety Science (IAFSS). The workshop gathered international experts in the field of fire evacuation modelling from 19 different countries and was designed to build a dialogue between the f
Due to the relatively short duration of earthquakes, most studies simplify their impact on structures by considering the total effect of each event rather than modelling the instantaneous accumulation of damage during the event itself. This approach may underestimate performance degradation, as incremental damage occurring during the shock can lead to an immediate reduction in capacity. Furthermor
Sustainable access to effective antibiotics is a main rationale for addressing antimicrobial resistance, for calls to enhance antibiotic supply security and for development support to promote health system capacity in low- and middle-income settings. Standard models for valuing pharmaceuticals fail to capture the full value of sustainable access to effective antibiotics. In effect, assessments of
This master thesis was performed in collaboration with NP Innovation. The purpose of this project was to develop a new inlet channel and two adapters for a water filter used in fish farming. Two different sizes of filters are included in the company's product portfolio. For both filters there is one inlet channel each in a corresponding size. One inlet channel consist of an adapter welded to t
This tutorial presents an introduction to power scaling concepts for high-order harmonic generation (HHG) and attosecond pulse production. We present an overview of state-of-the-art HHG-based extreme ultraviolet (XUV) sources, followed by a brief introduction to basic principles underlying HHG and a detailed discussion of macroscopic effects and scaling principles. Particular emphasis is put on a
Popular Abstract in Swedish Elektroencefalogrammet (EEG), dvs mätning av potentialer på skalpen, är en relativt enkel och gammal teknik för att studera hjärnans aktivitet. Trots de stora framstegen inom s k brain-mapping-tekniker på senare år (magnetröntgen, PET, SPECT), är EEG fortfarande ett viktigt verktyg för diagnos. En av dess fördelar gentemot andra tekniker är dess fina tidsupplösning. EtThe thesis treats methods for pattern recognition in multichannel electroencephalogram (EEG) signals, for application to diagnostics of epilepsy. Parts I-IV treat methods for feature extraction and clustering of EEG spikes, occurring between epileptic seizures, and part V presents a method for filtering seizure onset EEG signals. In part I, Hermite functions are used for parametric description of
Screening for type 1 diabetes (T1DM) risk in newborns has little negative emotional impact on mothers. In this study, the impact on the mother and the father was evaluated both in the general population and in families with diabetes. All parents with a newborn in Skåne, Sweden, were invited to a screening for T1DM risk in their children (the Diabetes Prediction in Skåne (DiPiS)). Blood was obtaine
Abstract in UndeterminedThe recent MPEG Reconfigurable Media Coding (RMC) standard aims at defining media processing specifications (e.g. video codecs) in a form that abstracts from the implementation platform, but at the same time is an appropriate starting point for implementation on specific targets. To this end, the RMC framework has standardized both an asynchronous dataflow model of computat
Chronic groin postherniorrhaphy pain (CGPP) is common and sometimes so severe that surgical treatment is necessary. The aim of this study was to identify risk factors for being reoperated due to CGPP.
A search for contributions to the reaction ep --> epi(0)N* from photon-odderon fusion in the photoproduction regime at HERA is reported, at an average photon-proton centre-of-mass energy
