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The purpose of this paper has been to show how NMR diffusometry can be used to convey information about structure and dynamics of complex fluids. The information can be obtained without the need to invoke complicated models. In fact, simple reasoning pertaining to how a molecule may diffuse through the studied systems allows one to chose between different conceivable solution structures and to obt
In the last decades there has been an increased influence of ethnomusicology in music education research. This is reflected in the activities of international associations such as International Society for Music Education (ISME), International Music Council (IMC) and Cultural Diversity in Music Education (CDIME), as well as in a growing body of research (e.g. Drummond, 2005; Schippers, 2010; Szego
Some patients with chronic obstructive pulmonary disease (COPD) show increased airway inflammation and bacterial colonization during stable phase. The aim of this study was to follow COPD patients and investigate chronic colonization with pathogenic bacteria during stable disease phase, and relate these findings to clinical parameters, inflammatory pattern, lung function, and exacerbations.
Ultra-wideband (UWB) communication is a potential technique for future high-speed networks. In this paper, we investigate low complexity signal detection approaches for OFDM based UWB systems. In particular, we develop practical approaches for channel estimation and interference suppression. Computer simulation results show that these techniques can be effectively used in OFDM based UWB systems fo
Due to the gravitational influence of density fluctuations driven by magneto-rotational instability in the gas disk, planetesimals and protoplanets undergo diffusive radial migration as well as changes in other orbital properties. The magnitude of the effect on particle orbits can have important consequences for planet formation scenarios. We use the local-shearing-box approximation to simulate an
A review of the literature is presented. Congenital renal and urinary tract anomalies are described, and the possible consequences of detecting them in utero are discussed. Prenatal detection of lethal anomalies affords the parents the option of terminating the pregnancy. If termination of pregnancy is not an acceptable option for the parents, the antenatal knowledge of lethal fetal anomaly helps
In this paper, multiple windows, optimal for locally stationary processes (MW-LSP) are used to estimate the spectrogram of the electroencephalogram (EEG) where we focus on the ability to estimate transient frequency changes. A peak of known frequency was evoked in the EEG spectrum in a predetermined time interval, by using a 9 Hz flickering light. We investigate the multiple windows corresponding
Popular Abstract in Swedish Olyckor i järnvägssektorn kan ge upphov till katastrofala konsekvenser. I första hand kan människors liv och hälsa drabbas, men allvarliga konsekvenser kan även uppstå för samhället i stort. Detta beror på att järnvägssystemet, liksom en rad andra infrastruktursystem är väsentliga för att vårt moderna samhälle ska fungera. Under de senaste decennierna har dessa system bIn recent decades, the Swedish railway system has faced substantial deregulations. As a result, management of risk is often carried out in settings involving multiple stakeholders having various roles, mandates, and viewpoints on risk, and where no single stakeholder has the superior authority. In order to manage risks in this type of multi-actor setting, the traditional elements of risk assessmen
Previous research works on solid oxide fuel cells (SOFCs) have mainly focused on the large length scale phenomena, such as physical and chemical transport phenomena at macroscale. A new approach is proposed in this work, which combines concepts from all-atom (AA) modeling with coarsegraining (CG) molecular dynamics (MD) method to reveal the replacement mechanism of Yttria-Stabilized Zirconia (YSZ)
Even though the development of B lymphoid cells from hematopoietic stem cells is one of the most carefully investigated models of cell differentiation in adult mammalians, a set of recent findings has to a large extent increased our understanding for how B lymphoid commitment is achieved. These include the identification of IKAROS, PU.1 and E2A as transcription factors responsible for lymphoid lin
Background and objective: We present a summary of the 2025 update for the European Association of Urology (EAU) guidelines for upper urinary tract urothelial carcinoma (UTUC). The aim is to provide practical recommendations on the clinical management of UTUC with a focus on diagnosis, treatment, and follow-up. Methods: For the 2025 guidelines on UTUC, new and relevant evidence was identified, coll
