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Understanding how environmental variation drives phenotypic diversification within species is a major objective in evolutionary biology. The seaweed fly Coelopa frigida provides an excellent model for the study of genetically driven phenotypes because it carries an α/β inversion polymorphism that affects body size. Coelopa frigida inhabits highly variable beds of decomposing seaweed on the coast i
Standard formulations of smoothed particle hydrodynamics (SPH) are unable to resolve mixing at fluid boundaries. We use an error and stability analysis of the generalized SPH equations of motion to prove that this is due to two distinct problems. The first is a leading order error in the momentum equation. This should decrease with an increasing neighbour number, but does not because numerical ins
The trend in the district heating industry is toward increased privatization and openness to competition, which bring with them other phenomena associated with civil law, such as bankruptcies. Vingåker was one of six Swedish municipalities whose district heating companies went bankrupt in 2004. The bankruptcy caused major disruptions in Vingåker, not least as a result of the unregulated legal fram
Scope: Emerging evidence suggests that high-fat diet (HFD) is associated with gut microbiome dysbiosis and related disorders. Bilberry is a prebiotic food component with known health benefits. Herein, the dynamics of the colonic mucus layer and microbiome during HFD and bilberry supplementation are addressed. Methods and results: The effects on colonic mucus thickness in vivo and gut microbiota co
In computer simulations, long-range electrostatic interactions are surprisingly well approximated by truncated, short-ranged pair potentials. Examples are reaction field methods; the Wolf method; and a number of schemes based on cancellation of electric multipole moments inside a cut-off region. These methods are based on the assumption that the polarization of the neglected surroundings can be in
Throughout the world, cities seek to ease transport-related problems of congestion, air pollution, noise, and traffic injuries. Urban transport planners have welcomed e-scooters as an alternative to motorized individual transport, specifically the car. The public has met e-scooters with both enthusiasm and scepticism, as cities have struggled with unforeseen outcomes such as forms of irresponsible
In-cylinder heat losses in diesel engines reduce engine efficiency significantly and account for a considerable amount of injected fuel energy. A great part of the heat losses during diesel combustion presumably arises from the impingement of the flame. The present study compares the heat losses at the point where the flame impinges onto the piston bowl wall and the heat losses between two impinge
Digital work has become part of social workers’ daily routines in countries where digitalisation is on the agenda. As a consequence, documentation practices are expanding—on paper as well as digitally—and include reporting detailed statistics about client interventions, filling in digital forms, and fulfilling local and national performance measurement goals. Standardised formulas with tick-box an
This study investigates the impact of beach sediment supply on dune volume evolution through data analysis and model simulations of the Kennemer dunes in the Netherlands. A cross-shore sediment transport model (the CS-model) is applied with local time-averaged longshore sediment transport gradients derived from bathymetric and topographic observations. The model is used to study the relative impor
In terms of climate change and precipitation, there is large interest in how large-scale climatic features affect regional rainfall amount and rainfall occurrence. Large-scale climate elements need to be downscaled to the regional level for hydrologic applications. Here, a new Nonhomogeneous Hidden Markov Model (NHMM) called the Bayesian-NHMM is presented for downscaling and predicting of multisit
Popular Abstract in Swedish Ett glas mjölk innehåller ungefär tusen miljarder små oljedroppar. Varje droppe är en tusendels millimeter stor. Dropparna är suspenderade i en blandning av vatten, proteiner och lösta molekyler. Små droppar av olja i vatten brukar kallas emulsioner. Emulsioner är vanliga beståndsdelar i livsmedel och finns exempelvis i allehanda mjölkprodukter, såser, smeter och dressiDifferent approaches and sub-models for the modelling of emulsification in a high-pressure homogenizer are reviewed and compared in terms of both practical aspects and how well they describe what is currently known on the emulsification process in general and on high-pressure homogenization in particular. Special effort is devoted to comparing the model developments presented in the appended paper
Turbulent flow and thermal field were predicted in a square-sectioned 180° bend at a Reynolds number of 56000. Suga's low-Re cubic k-ε model [5-6] and the RSM [7-8] were used. The results were compared to experimental data [1]. Identical inlet boundary conditions were used in both cases. The inlet length impact on the flow-heat transfer in the bend was investigated. The velocities are higher near
Centre for Economic Demography Lund University School of Economics and Management P.O. Box 7083 SE-220 07 Lund, Sweden www.ed.lu/publications/Lund-Papers-in-Economic-Demography/ The Reversal of the Gender Gap in Education: Exploring its Consequences for Partnering, Employment and Voting Behaviour MARTIN NORDIN, MARIA STANFORS LUND PAPERS IN ECONOMIC DEMOGRAPHY 2024:1 The Reversal of the Gender Gap
https://www.lusem.lu.se/sites/lusem.lu.se/files/2024-11/LPED_2024%201.pdf - 2026-07-22
Arkiv används ofta som en källa inom olika forskningsprojekt. I den här uppsatsen är det istället arkivet i sig som är studieobjekt. Utifrån mediearkeologisk teori undersöks Biblioteksstyrelsens arkiv i Åmål. Uppsatsens teoretiska utgångspunkter är att arkiv befinner sig i en samhällelig kontext och återspeglar det minne det lagrar. Uppsatsen är en kvalitativ studie och arkivet har undersökts på fArchives are often used as a source in various research projects. In this essay, it is instead the archive that is a study object. Based on media archaeological theory, the Library Board's archive in Åmål is examined. The theoretical basis of the essay is that archives are in a social context and reflect the memory it stores. It is a qualitative study and the archive has been investigated on s
The ability of organisms to change color in response to a change in environmental conditions is widespread across taxa. Predation represents the longstanding hypothesis for the evolution of such coloration plasticity. Yet, tests of the evolutionary drivers of coloration plasticity remain rare. Here, we examine how predation shapes both baseline coloration and coloration plasticity in the Trinidadi
After the 1980s, neoliberalism became the dominant philosophy of development across the world. Whereas the widespread implementation of neoliberal economic policies contributed immensely for a maximization of world economic integration and activity, critics argue that the ideology was also responsible for dramatically widening the inequality gap between and within nations, as well as for the incre
The enzymatic depolymerization of synthetic polyesters has become of great interest in recycling plastics. Most of the research in this area focuses on the depolymerization of polyethylene terephthalate (PET) due to its widespread use in various applications. However, the enzymatic activity on other commercial polyesters is less frequently investigated. Therefore, AkestraTM attracted our attention
Selective regimes and phenotypic optima could either change smoothly and in a clinal fashion or be spatially organized in a more unpredictable mosaic pattern over the geographic landscape. When natural or sexual selection is driven by intra- or interspecific biotic interactions, fine-grained spatial variation in selective regimes could result in selection mosaics rather than clinal variation in se
The large bloom-forming flagellate Gonyostomum semen has been hypothesized to be inedible to naturally occurring zooplankton due to its large cell size and ejection of long slimy threads (trichocysts) induced by physical stimulation. In a grazing experiment using radiolabelled algae and zooplankton collected from lakes with recurring blooms of G. semen and lakes that rarely experience blooms, we f
Background. Pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH) are fatal, noncurable, but treatable diseases that strongly affect the patients. Objective. To describe patients' experience of information relating to PAH or CTEPH. Methods. A qualitative method using content analysis was applied. Seventeen patients (thirteen women and four men) aged 28-73
