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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 - 2026-07-12
Tendons connect muscles to bone and consist of a complex structure of almost parallel collagen fibres embedded in a hydrated matrix. The mechanical behaviour of tendons is viscoelastic and highly non-linear. The Achilles tendon is the largest tendon in the body and it is essential for walking and jumping. It is the most frequently ruptured tendon in humans and today there is no consensus on what i
The subject matter of the thesis is the comprehensive - legal and multidisciplinary - analysis of the terms 'peoples' and 'minorities' in international law. The argument of the author proceeds in four parts: the Problematique which deals with the 'minority challenge' and the international normative response to that challenge; the Critique, criticizing the basic underlying assumptions of the discou
We present the detection and characterisation of the TOI-1438 multi-planet system discovered by the Transiting Exoplanet Survey Satellite (TESS). To confirm the planetary nature of the candidates and determine their masses, we collected a series of followup observations including high-spectral resolution observations with HARPS-N and HIRES over a period of 5 years. Our combined modelling shows tha
Background The optimal strategy for initial treatment of acute occlusion of superior mesenteric artery (SMA) is debated. The aim of the study was to compare the effectiveness, timelines and outcomes of endovascular versus open surgical treatment in patients with acute SMA occlusion. This was a preplanned substudy of the prospective observational multicenter AMESI (Acute MESenteric Ischaemia) study
Header 1 2021-01-25 1 Peer reviewed publications (data and/or co-authors at the national 7T facility) [1] [1-29] 1. Novén, M., Schremm, A., Horne, M., Roll, M., Cortical thickness and surface area of left anterior temporal areas affects processing of phonological cues to morphosyntax, Brain Research 2021,1750:147150 2. Wiggermann, V., Mackay, A. L., Rauscher, A., Helms, G., In vivo investigation o
https://www.lbic.lu.se/sites/lbic.lu.se/files/publications2021jan.pdf - 2026-07-13
Popular Abstract in Swedish Ekokardiografisk undersökning av hjärtat utvecklades i Lund i början av 1950 talet av kardiologen Inge Edler tillsammans med fysikern Helmuth Hertz och har under de första 30 åren huvudsakligen utförts via bröstkorgsväggen så kallat transthorakalt ultraljud. Under 1980 talet utvecklades tekniken och man fick instrument som via matstrupen kunde utföra en ekokardiografiskThe subject of this thesis is the clinical use of transesophageal echocardiography (TEE) in patients with stroke or atrial fibrillation. Subjects were examined with echocardiography and sonography of the carotid artery. A control group of randomly selected volunteers without cerebrovascular disease was compared to patients with ischemic stroke. Cardiac pathology was classified as minor potential e
Background: We have recently analyzed the profile of T-cell subtypes based on chemokine receptor expression in blood from untreated early rheumatoid arthritis (ueRA) patients compared to healthy controls (HC). Here, we compared the levels of the respective chemokines in blood plasma of ueRA patients with those of HC. We also studied the association of chemokine levels with the proportions of circu
Background: Several countries have increased patients' abilities to choose their health care providers, frequently under the assumption that patients are themselves the best agents to make such decisions. In parallel, national and regional health authorities have enhanced access to Internet based information sources (IBIS) to assist patients in making an informed choice. Relatively little, however
Aim of the study: The objective of this study is to model VaR in a small sized rapidly developing financial market in Sub-Saharan Africa which has not only served as a haven for a number of foreign investors, but also has provided the best inflation adjusted returns. This market is of profound interest given that it has received limited attention from policy analysts and previous studies. Method
Den tilltalades tidigare brottslighet kan i svensk rätt påverka påföljdsbestämningen för ny brottslighet, dvs. straffmätning och påföljdsval, på främst tre sätt. I första hand kan den tidigare brottsligheten beaktas genom ett skärpt påföljdsval. I andra hand har rätten möjlighet att förklara villkorligt medgiven frihet förverkad. I sista hand finns det genom straffskärpning möjlighet att förlänga
Importance: Coverage of essential child health and nutrition interventions in low- and middle-income countries remains suboptimal. Adverse exposures, such as undernutrition and infections, are particularly harmful during the 1000 days from conception until 2 years of age.Objective: To investigate whether deaths in children younger than 5 years-which also reflect adverse exposures faced by children
INTRODUCTION: Thorough treatment planning is essential for a good clinical outcome in orthognathic treatment. The planning is often digital. Both 2-dimensional (2D) and 3-dimensional (3D) software options are available. The aim of this randomized 2-arm parallel double-blinded active-controlled clinical trial was to compare the outcomes of computer-based 2D and 3D planning techniques according to p
In this thesis, crystals of yttrium orthosilicate (Y2SiO5) that are randomly doped with another rare-earth element, such as praseodymium (Pr), europium (Eu), or cerium (Ce), are investigated with lasers locked to ultra-stable cavities using the Pound-Drever-Hall locking technique. Many of these rare-earth elements have long-lived 4f-4f transitions, hundreds of microseconds to a few milliseconds, w
Denna uppsats ämnar till att undersöka vilka faktorer som påverkar intentionen hos icke adoptanter mellan 18–30 år till att använda sig av Personal Financial Management-tjänster i Sverige. Detta undersöks med stöd av teorierna TechnologyAcceptance Model och Diffusion of Innovation, vilket resulterar i en modell av sju faktorer som enligt tidigare studier haft signifikant påverkan på liknande digit
Within the first decade of this millennium several Western European countries have prohibited Muslim veils in public spaces. Excluding the culture of Muslims or more specifically Islamic beliefs in a multicultural society, in which the hardest hit are Muslim veiled women, has resulted in the discourse of the ‘rise and fall of multiculturalism’. Although Sweden has not prohibited hijab or any other
Nearly one third of the global food is wasted. Microbial spoilage is a major factor in food waste, and it can happen at any point along the supply chain. Greenhouse grown English long cucumbers, one of the most important vegetable crops grown in Europe, were studied for weight changes and the presence of microbiological populations during the shelf life in this project. The main methods used in th
There are competing standards regarding the definition of the crime of “enforced disappearance” under international law. When criminalizing enforced disappearance at the national level as part of their obligations under international law, States which adopt a more narrow definition of enforced disappearance provided in the Rome Statute require victims of enforced disappearance to prove the existen
“The important criterion for a graph is not simply how fast we can see a result; rather it is whether through the use of the graph we can see something that would have been harder to see otherwise or that could not have been seen at all.” William S. Cleveland When presenting graphs for people with visual impairments the solutions found on the market today often present pure data values only. Over
The purpose of this essay was to examine the experience of the judicial process concerning domestic violence from the perspectives of abused females and from some of the authorities and organisations which meet these women. The essay investigated several views of the judicial process in order to obtain a wide perspective. It responded to the following questions: - How are abused women treated by
