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Thermoresponsive polymer layers on silica surfaces have been obtained by utilizing electrostatically driven adsorption of a cationic-nonionic diblock copolymer. The cationic block provides strong anchoring to the surface for the nonionic block of poly(2-isopropyl-2-oxazoline), referred to as PIPOZ. The PIPOZ chain interacts favorably with water at low temperatures, but above 46 degrees C aqueous s
We propose a novel interconnector design, termed bi-layer interconnector, for solid oxide fuel cells (SOFCs). It can disturb the fuel gas and air on the planes normal to the SOFC three-phase-boundary (TPB) layer. In this paper, a two-dimensional half-cell model is developed to study the concentration overpotentials in the fuel side of the SOFC stack with conventional and novel bi-layer interconnec
Popular Abstract in Swedish Cancer är på cellnivå en genetisk sjukdom, i det avseendet att typiska egenskaper för cancerceller, t ex okontrollerad celldelning samt abnorm känslighet för yttre regulatoriska signaler, uppkommer genom förvärvade och ibland ärftliga förändringar, s k mutationer, i cellens arvsmassa. Hur mutationerna uppstår är bara till viss del känt. Somliga förändringar beror på strAcquired genetic alterations, of which many are visible on the chromosome level, are believed to be necessary for tumorigenesis, and most tumors display characteristic patterns of recurrent structural and numerical aberrations. However, two of the most frequently occurring chromosome mutations in malignant and benign solid tumors, i.e., trisomy 7 and rearrangements of 12q13-15, have recently been
We analyse time series data of 17 bird species trapped at Ottenby Bird Observatory, Sweden, during spring migration 1972-1999. The species have similar demography but respond differently to variation in the North Atlantic Oscillation (NAO) - a strong determinant of winter climate in the northern Hemisphere. Species wintering in northern Europe, compared to species having winter quarters in the Med
The steady-state model PROFILE was used to perform Monte Carlo simulations of critical loads of acidity and exceedances of forest soils for 128 sites in the province of Scania, southern Sweden. Statistical tests showed that 100 sites had normal distributed critical loads and exceedances and that the variance of these parameters was statistically equal for all sites. Pooled estimates df the standar
comparatively stringent mathematical frame has been developed, where the behaviour of physical dimensions (like ``length'', ``mass'', and ``time'') and physical units (like 1 m [1 metre], 1 kg [1 kilogramme], and 1 s [1 second]) is modelled. Easy-to-apply conditions for additivity and multiplicativity of physcial matrices are presented. Precise meanings of physically dimensional random variables,
Recombinant adeno-associated virus serotype 2 (rAAV2) vector has been widely employed for gene therapy. Recent progress suggests that the new serotypes of AAV showed a better performance than did AAV2 in normal tissues. Here, we evaluate the potential role of human vascular endothelial growth factor (VEGF) gene transfer using rAAV vector pseudotyped with serotype I capsid proteins (rAAV1) in the t
About a third of all meteorites that fall on Earth today, the stony L-chondrites, originate from a major breakup event in the asteroid belt 466 Ma, in the early Darriwilian. This is the largest asteroid breakup in the past three billion years documented by K-Ar gas-retention ages of recently fallen meteorites. There has been a debate whether the breakup had any effects on Earth’s biota. Based main
The pharmaceutical industry uses animal models in a variety of settings including safety, pharmacodynamic modelling and efficacy. Conventionally, a frequentist design of standard animal experiments of human asthma replication includes repeatedly running treatment groups with the exact layout, focusing on effect size rather than capturing historical data of animal responses on compounds of interest
BACKGROUND: Obesity is positively associated with colorectal cancer. Recently, body size subtypes categorised by the prevalence of hyperinsulinaemia have been defined, and metabolically healthy overweight/obese individuals (without hyperinsulinaemia) have been suggested to be at lower risk of cardiovascular disease than their metabolically unhealthy (hyperinsulinaemic) overweight/obese counterpart
Popular Abstract in Swedish Avhandlingen omfattar fyra artiklar inom empirisk finansiell ekonomi. Det första kapitlet är en kort sammanfattning av avhandlingens innehåll. Det andra kapitlet, Dynamic Portfolio Selection: The Relevance of Switching Regimes and Investment Horizon. (samförfattad med Birger Nilsson) undersöker dynamiskt portföljval och efterfrågan på tidsdiversifiering då aktieavkastnThis thesis consists of four empirical studies on financial economics. The first chapter contains a short summary of the thesis. The second chapter Dynamic Portfolio Selection: The Relevance of Switching Regimes and Investment Horizon (co-authored with Birger Nilsson) investigates the questions of dynamic portfolio selection and intertemporal hedging within a Markovian regime-switching framework.
Utgångspunkten för uppsatsen har varit att samtliga aktier i ett aktiebolag överlåts till en köpare. I framställningen analyseras hur risken för fel i målbolaget fördelas mellan köpare och säljare med utgångspunkt i köplagens bestämmelser. Från att ha varit en kontroversiell fråga råder det idag inga tveksamheter om att det är köplagens bestämmelser, som lägger grunden för bedömningen av säljarensThe starting point for this thesis has been that all shares in a limited liability company are transferred to a buyer. The presentation analyses how the risk of errors in the target company is divided between the buyer and the seller, based on the provisions of the Sale of Goods Act. From being a controversial issue, there is today no doubt that the provisions of the Sale of Goods Act lay the foun
The human body is like a machine where the different components (e.g. bones, muscles, ligaments and tendons) are mechanically connected. The musculoskeletal system is subjected to mechanical forces created by the earth's gravity and body movements. These forces largely determine tissue development, growth and health through an intricate feed-back system where cells within the tissue can sense thei
https://www.bme.lth.se/en/research/biomechanics - 2026-09-09
Radiotherapy Physics Dose-volume concepts and treatment planning Per Nilsson/Crister Ceberg Specification of volumes and doses volumes (i.e. tumours, organs at risk, and other volumes of interest) prescribed doses to tumours and (acceptable) doses to organs at risk ICRU 50, 62 and 71 Photons Electrons 1993 1999 2004 Brachytherapy 1985 1997 Specifications: why? Maintain a consistent treatment
https://www.msf.lu.se/sites/msf.lu.se/files/11._dos-volymbegrepp_och_dosplanering.pdf - 2026-09-09
Previous positron emission tomography (PET) studies have quantified filamentous tau pathology using regions-of-interest (ROIs) based on observations of the topographical distribution of neurofibrillary tangles in post-mortem tissue. However, such approaches may not take full advantage of information contained in neuroimaging data. The present study employs an unsupervised data-driven method to ide
New regimens are constantly being pursued in cancer treatment, especially in the context of treatment-resistant cancer stem cells (CSCs) that are assumed to be involved in cancer recurrence. Here, we investigated the anti-cancer activity of sesquiterpene lactones (SLs) isolated from Ambrosia arborescens and of synthetic derivatives in breast cancer cell lines, with a specific focus on activity aga
Popular Abstract in Swedish Fjärrvärme är ett centraliserat uppvärmningssystem där varmt vatten distribueras i ett rörnätverk och används främst till byggnadsuppvärmning och för att värma varmvatten. Fjärrvärme finns i alla länder på norra halvklotet men har störst marknadsandel i Norden och Baltikum. I Sverige används fjärrvärme för att värma c:a 60% av all byggnadsyta. Två stora fördelar med fjäRenewable energy sources dominated the world energy supply until the beginning of the 20th century, when fossil energy became the dominant energy source worldwide. Today, fossil fuels contribute to over 80% of world energy supply. But there are two major reasons why fossil energy use has to stop. First, fossil energy is limited and will not last forever. Second, emissions of carbon dioxide change
Background Leaf-cutting ants live in symbiosis with a fungus that they rear for food by providing it with live plant material. Until recently the fungus' main inferred function was to make otherwise inaccessible cell wall degradation products available to the ants, but new studies have shed doubt on this idea. To provide evidence for the cell wall degrading capacity of the attine ant symbiont, we
Aims. We report the discovery of a massive and dense transiting planet CoRoT-27b on a 3.58-day orbit around a 4.2 Gyr-old G2 star. The planet candidate was identified from the CoRoT photometry, and was confirmed as a planet with ground-based spectroscopy. Methods. The confirmation of the planet candidate is based on radial velocity observations combined with imaging to rule out blends. The charact
