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Senior lecturer Contact details Email: roman [dot] pasechnik [at] fysik [dot] lu [dot] seOrganisation Particle and nuclear physics Visiting address: Sölvegatan 14 A, Lund Room number: K344 Service point: 14 WebpageRoman Pasechniks profile in Lund University research portalMy research is focused on various theoretical and phenomenological aspects of the Standard Model and beyond, as well as their c
https://www.particle-nuclear.lu.se/roman-pasechnik - 2026-05-26
Semi-supervised learning (SSL) uses unlabeled data during training to learn better models. Previous studies on SSL for medical image segmentation focused mostly on improving model generalization to unseen data. In some applications, however, our primary interest is not generalization but to obtain optimal predictions on a specific unlabeled database that is fully available during model development
BACKGROUND Targeted temperature management is recommended for patients after cardiac arrest, but the supporting evidence is of low certainty. METHODS In an open-label trial with blinded assessment of outcomes, we randomly assigned 1900 adults with coma who had had an out-of-hospital cardiac arrest of presumed cardiac or unknown cause to undergo targeted hypothermia at 33°C, followed by controlled
Purpose: Hyperoxemia is common in patients resuscitated after out-of-hospital cardiac arrest (OHCA) admitted to the intensive care unit (ICU) and may increase the risk of mortality. However, the effect of hyperoxemia on functional outcome, specifically related to the timing of exposure to hyperoxemia, remains unclear. Methods: The secondary analysis of the Target Temperature Management 2 (TTM-2) r
Den svenska produktionen av Science fiction-film är för många okänd. Uppsatsen undersöker vilka svenska filmer som kan klassas som science fiction och hur den svenska konstfilmsinstitutionen inverkat på produktionen. Med utgångspunkt i svenska science fiction-entusiasters sammanställningar, analyseras innehållet kvantitaivt i de långfilmer som gjorts och graderas i en tregradig skala efter hur staThe production of Swedish science fiction is unknown for most people. The thesis studies which Swedish movies that can be classified as science fiction and how the Swedish art cinema institution has affected the production. The movies are analyzed and graded by how strong the science fiction influences are. The result eventuates in 29 Swedish science fiction movies, that strong influences are unco
Introduction: Planning cranioplasty (CPL) in patients with suspected or proven post-traumatic hydrocephalus (PTH) poses a significant management challenge due to a lack of clear guidance. Research question: This project aims to create a European document to improve adherence and adapt to local protocols based on available resources and national health systems. Methods: After a thorough non-systema
We review the main software and computing challenges for the Monte Carlo physics event generators used by the LHC experiments, in view of the High-Luminosity LHC (HL-LHC) physics programme. This paper has been prepared by the HEP Software Foundation (HSF) Physics Event Generator Working Group as an input to the LHCC review of HL-LHC computing, which has started in May 2020.
Background: Targeted temperature management (TTM) is recommended following cardiac arrest; however, time to target temperature varies in clinical practice. We hypothesised the effects of a target temperature of 33 °C when compared to normothermia would differ based on average time to hypothermia and those patients achieving hypothermia fastest would have more favorable outcomes. Methods: In this p
Aim: Assess the prognostic ability of a non-highly malignant and reactive EEG to predict good outcome after cardiac arrest (CA). Methods: Prospective observational multicentre substudy of the “Targeted Hypothermia versus Targeted Normothermia after Out-of-hospital Cardiac Arrest Trial”, also known as the TTM2-trial. Presence or absence of highly malignant EEG patterns and EEG reactivity to externa
Popular Abstract in Swedish Stora förändringar har skett i jordbrukslandskapet under det senaste drygt halva århundradet. Ett allt intensivare jordbruk med krav på större skördar för att möta en allt större efterfrågan på livsmedel har satt sina spår. För att klara de högre kraven, men också som en följd av den teknologiska utvecklingen, så har jordbruket rationaliserats. Landskapet har strukturerAgricultural intensification has caused severe declines among biodiversity in European farmland over the last half century. The transformation of the agricultural landscape has led to reduced availability of key resources such as food, nesting habitat and shelter. In this thesis I have investigated a way of ameliorating the negative effects of agricultural intensification, through the creation of
Philadelphia (Ph) chromosome-positive leukemia is characterized by the BCR/ABL1 fusion protein that affects a wide range of signal transduction pathways. The knowledge about its downstream target genes is, however, still quite limited. To identify novel BCR/ABL1-regulated genes we used global gene expression profiling of several Ph-positive and Ph-negative cell lines treated with imatinib. Followi
INTRODUCTION: Administration of large volumes of fluids is associated with poor outcome in septic shock. Recent data suggest that non-resuscitation fluids are the major source of fluids in the intensive care unit (ICU) patients suffering from septic shock. The present trial is designed to test the hypothesis that a protocol targeting this source of fluids can reduce fluid administration compared w
Projekt Turnstone är ett samverkansprojekt delvis finansierat av Europeiska kommissionen. Projektet är ett initiativ av Stockholmspolisens gränsbevakningsenhet. Samverkanspartners i projektet är Svenska Kustbevakningen, Region Nord öst; Helsingforspolisen; Gränsbevakningsväsendet, Finland; Polis och Gränsbevakningen i Estland; Statliga Gränsbevakningen, Lettiska republiken; och den Statliga GränssProject Turnstone is a collaborative project funded in part by the European Commission. The project is an initiative by the Stockholm Police. Collaborating partners in the project are the Swedish Coast Guard, Region Northeast; the Helsinki Police; the Gulf of Finland Coast Guard District; the Police and Border Guard Board in Estonia; the State Border Guard of the Republic of Latvia; and the State
Popular Abstract in Swedish Antalet äldre i befolkningen ökar i förhållande till andra åldersgrupper. Detta beskrivs medföra en ekonomisk utmaning för samhället och att fler äldre behöver skjuta upp sin ålderspension. Avhandlingen bygger på fyra studier med det övergripande syftet att bidra till ökad kunskap om faktorer som medverkar till ett förlängt alternativt förkortat arbetsliv bland personerIn most of the industrialised world, the proportion of older and retired people in the population is continuously increasing. This will have budgetary implications for maintaining the welfare state, because the active working section of the population must fund the non-active and old population. Aim: The overall aim of this thesis was to obtain knowledge about older workers’ work and life situatio
Four previously known rotational bands in Rb-76 have been extended to moderate spins using the Gammasphere and Microball gamma ray and charged particle detector arrays and the Ca-40(Ca-40,3pn) reaction at a beam energy of 165 MeV. The properties of two of the negative-parity bands can only readily be interpreted in terms of the highly successful Cranked Nilsson-Strutinsky model calculations if the
Background: This prospective study focuses on factors associated with arterial damage in children with type 1 diabetes (T1D). Materials and Methods: Eighty children and adolescents with T1D (mean age 15, range: 8-20 yrs; mean diabetes duration 7, range: 0.5 to 19 years) were investigated twice, approximately 2 years apart, for carotid artery intima-media thickness (cIMT) and compliance (CAC), flow
The existing information supports the use of this material as described in this safety assessment. Hexyl hexanoate was evaluated for genotoxicity, repeated dose toxicity, reproductive toxicity, local respiratory toxicity, phototoxicity/photoallergenicity, skin sensitization, and environmental safety. Data from read-across analog hexyl isobutyrate (CAS # 2349-07-7) show that hexyl hexanoate is not
