Sökresultat

Deposition of N and S has increased since the 1950s in most European countries and N accumulates in ecosystems that are not N saturated. This study shows long-term effects of a (modelled) N deposition of 7-17 kg N ha(-1) per year on biological and chemical processes in soil, vegetation composition, and functional types of field-layer plant species in deciduous forests. Soil pH largely determined t

Popular Abstract in Swedish I denna avhandling studeras new age utifrån problemområdena hälsa, kroppslighet och genus. Genom intervjuer med andliga sökare inom new age ges en bild av de trosföreställningar och attityder som kännetecknar rörelsen. Också sökarnas olika vägar till new age och relationer till andra religioner analyseras. I det senmoderna samhället är hälsa ett eftersträvansvärt livsväIn this thesis New Age is studied from a sociological perspective, with a focus on health, body, and gender. One purpose is to examine how people within New Age view and relate to these problem areas. A parallel purpose is to find explanations to why women predominantly take an interest in New Age, and to discover how these explanations are related to the view on health, body and gender. The subje

Popular Abstract in Swedish Idag behöver människor som talar, tänker och lever på olika sätt mer än någonsin kunna kommunicera med varandra. Ett självklart språk för dessa kontakter är för en svensk ofta engelska. Det lär sig varje elev under minst tio år i vår skola. Men för att kunna förstå andra bättre, fordras också att vi blir medvetna om skilda sätt att uppfatta världen omkring oss. Vi behövThe aim of this study is to examine the prospects of developing intercultural understanding through English as a foreign language (EFL) education in the Swedish comprehensive school. This overall aim is split into two subordinate aims: (1) to analyse and problematize the intercultural dimension of EFL as three discourses, research discourse, authority discourse and teacher discourse; (2) to relate

Over the past few decades, numerous wide (> 103 au) binaries in the Galactic field and halo have been discovered. Their existence cannot be explained by the process of star formation or by dynamical interactions in the field, and their origin has long been a mystery. We explain the origin of these wide binaries by formation during the dissolution phase of young star clusters: an initially unbound

The effect of modification of osmotic medium composition with salts on the texture changes and process kinetics was evaluated in the present study. Inner and outer apple cortex parenchyma (Kim var.) was subjected to osmotic processing at 20.40 and 60 degrees C. The four osmotic media used were of identical osmotic pressure but slightly different compositions. The solution 1, Si, was a 50% w/w sucr

A section, almost 20 km long and up to 80 m high, through alternating layers of diamict and sorted sediments is superbly exposed on the north coast of the Kanin Peninsula, northwestern Russia. The diamicts represent multiple glacial advances by the Barents Sea and the Kara Sea ice sheets during the Weichselian. The diamicts and stratigraphically older lacustrine, fluvial and shallow marine sedimen

We here use knockin mutagenesis in the mouse to model the spectrum of acquired CEBPA mutations in human acute myeloid leukemia. We find that C-terminal C/EBP alpha mutations increase the proliferation of long-term hematopoietic stem cells (LT-HSCs) in a cell-intrinsic manner and override normal HSC homeostasis, leading to expansion of premalignant HSCs. However, such mutations impair myeloid progr

Patch use theory and the marginal value theorem predict that a foraging patch should be abandoned when the costs and benefits of foraging in the patch are equal. This has generally been interpreted as all patches being abandoned when their instantaneous intake rate equals the foraging costs. Bayesian foraging – patch departure is based on a prior estimate of patch qualities and sampling informatio

The importance of lake ecosystems for waterfowl remains a topic of debate. In order to assess how temporal variations in lake features, specifically shifts between alternative stable states, may interact with the waterfowl fauna, we performed a long-term (22 years) study of the shallow Lake Krankesjon, southern Sweden. Lower total numbers of waterfowl occurred during periods with low macrophyte co

We derive asymptotic properties for a stochastic dynamic network model in a stochastic dynamic population. In the model, nodes give birth to new nodes until they die, each node being equipped with a social index given at birth. During the life of a node it creates edges to other nodes, nodes with high social index at higher rate, and edges disappear randomly in time. For this model, we derive a cr

We used a proboscis extension reflex (PER) to study the olfactory discrimination capability in the moth Spodoptera littoralis. Already after a single experience, moths were capable to discriminate a rewarded from an unrewarded odor. In the first experiment, when rewarded and unrewarded odors were substituted for each other, moths were able to undergo reversal conditioning already after two experie

MRI and CT are modalities appropriate for liver imaging. To obtain higher sensitivity in diagnoses of focal lesions in the liver, contrast media (CM) are used. Non-specific extracellular CM are not optimal as they rapidly diffuse into both normal tissue and tumorous tissue. By two different mechanisms, the hepatobiliary route and targeting to the reticuloendothelial system, agents may accumulate i

Abstract in FrenchCet article a pour cadre le développement de l'idée du mariage comme une union personnelle se fondant sur la relation entre les époux. Les théories qui se sont développées à partis du XIe siècle à l'intérieur de l'église ont mis l'accent sur le caractère personnel du mariage: le fondement du sacrement du mariage étant devenu l'union entre deux individus et non pas l'interêt familIn this article I examine the development of the idea of marriage as a personal union whose foundation is the relation between the spouses. The theories which developed within the Church from the eleventh century and onwards put the emphasis on the personal side of marriage; the sacrament of marriage was founded on the union between the spouses and not on family interest. From the middle of the tw

Adaptive step size control is difficult to combine with geometric numerical integration. As classical step size control is based on "past" information only, time symmetry is destroyed and with it the qualitative properties of the method. In this paper we develop completely explicit, reversible, symmetry-preserving, adaptive step size selection algorithms for geometric numerical integrators such as

Popular Abstract in Swedish Tungmetaller i kommunala avfallsupplagExtensive use of heavy metals in modern society influences routes followed by fluxes on the surface of the Earth. The changed flow paths may be harmful for the balance of biological systems at different levels, micro-organisms, human beings and whole ecosystems, since the toxicity of heavy metals is determined by their concentrations and chemical forms. The fluxes of cadmium in Sweden and especia

The incidence of evaporating `black widow' pulsars (BWPs) among all millisecond pulsars is far higher in globular clusters than in the field. This implies a special formation mechanism for them in clusters. Cluster millisecond pulsars in wide binaries with white dwarf companions exchange them for turnoff-mass stars. These new companions eventually overflow their Roche lobes because of encounters a

Popular Abstract in Swedish Sjukdomar associerade till fästingar har ökat över hela världen och näst efter myggor är fästingen den vektor som orsakar mest sjukdom hos människan. I Sverige sprider fästingen sjukdomar såsom borreliainfektion, fästingfeber (erlichia) och fästingburen hjärninflammation (TBE) vilka orsakas av såväl bakterier som virus. Borreliainfektion är den vanligaste fästingburna sThe incidence and variety of diseases associated with ticks have increased world-wide and ticks are currently considered to be second only to mosquitoes as vectors of human infectious diseases in the world. In the northern hemisphere, Ixodes ricinus, the most common tick, transmits diseases caused by several infectious pathogens, including different types of bacteria, virus and protozoa. In Sweden